TWI643605B - Disposable diapers - Google Patents

Abstract

A disposable diaper having a long side direction, a wide direction, and a thickness direction orthogonal to each other, and having: a front waist area, a lower hip area, and a back waist area for giving an infant weighing less than 3000 g The disposable disposable diaper used is characterized in that: an absorbent body and an outer side extending in the width direction and extending from the rear waist region to form a pair of fixed adhesive members, and along one The fixed adhesive member is fixedly adhered to the front waist region to form a leg-surrounding member which is disposed on the outer side of the leg-opening and which is disposed on the outer side of the absorbent body, and the display is required to fix the pair of fixed adhesive members a display portion to be adhered to a desired adhesive position in the front waist region; the absorber is provided with an overlapping region overlapping the display portion of the adhered label in the thickness direction in the longitudinal direction, and the display portion of the label is attached The length in the width direction is below the maximum length in the width direction of the absorbent body in the overlap region.

Description

Disposable diapers

The present invention relates to an unfolded disposable diaper for use in an infant having a body weight of 3000 g or less.

The unfolded disposable diaper is a pair of fastening tapes (fixed adhesive members) which are attached to the wearer's body and extend from the outer waist to the outer side in the wide direction, and are fixedly adhered to The buckled band of the front waist is fixed to the wearer. Further, there is also a case where the outer sheet of the disposable diaper is integrally formed by using a fastening tape to fix the adhesive member. However, at that time, there is no tape which is the front side of the reference target of the fixed adhesive position of the fastening tape, and it is difficult to use the disposable diaper. Here, a type of embossed printing (for example, a number or an illustration) which is a reference target of a fixed adhesive position of the fastening tape is proposed, and the outer sheet is formed into an identifiable disposable diaper (for example, reference) Patent Document 1).

[Previous Technical Literature] [Patent Document]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2002-253608

In order to be able to correspond to wearers of various sizes, the printed label is generally applied to both ends of the front waist region in the wide direction. However, for a smaller baby weighing less than 3000g, when the disposable diaper is installed, there is always a desire to wear a looser baby, and it is easy to stick along the position of the printed label. The buckle is fixedly attached to both ends of the front waist region in the wide direction. In this way, a gap is formed in the waist opening or the leg opening, and the problem that the excrement is easily leaked occurs.

The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to prevent the leakage of excrement from the unfolded disposable diaper used for an infant having a body weight of 3000 g or less.

In order to achieve the above-mentioned main object, the invention has a longitudinal direction, a width direction, and a thickness direction which are orthogonal to each other, and includes a front waist region, a lower hip region, and a back waist region to give an infant weighing less than 3000 g. The disposable disposable diaper used in the present invention is characterized in that: an absorbent body and an outer side extending in the width direction and extending from the rear waist region to form a fixed adhesive member, and The pair of fixed adhesive members are fixedly adhered to the front waist region to form one of the pair of leg openings, and are disposed outside the width direction of the absorber. a side leg stretchable member, and a display portion of the adhesive label indicating that the pair of fixed adhesive members are to be fixedly adhered to the front waist region, wherein the absorbent body is provided in the longitudinal direction An overlap region in which the display portion of the adhesive label is overlapped with the thickness direction, and a length of the display portion of the adhesive target in the width direction is a maximum of the width direction of the absorber located in the overlap region Below the length.

Other features of the present invention will be apparent from the description of the specification and the accompanying drawings.

According to the present invention, it is possible to suppress leakage of excrement to an unfolded disposable diaper which is used for an infant having a body weight of 3000 g or less.

1‧‧‧ disposable diapers

1a‧‧‧front waist area

1b‧‧‧Under the hip

1c‧‧‧Back waist area

2‧‧‧Surface

3‧‧‧Back film

4‧‧‧Acceptor

41‧‧‧Absorber chip

42‧‧‧ Covering materials

5‧‧‧Outer sheets

6‧‧‧ leg-stretching members (stretchable area)

10‧‧‧ Velcro tape (fixed adhesive member)

11‧‧‧Substrate

12‧‧‧ hook sheet

13‧‧‧Buckled sheets

14‧‧‧Buckled belt

15‧‧‧The display part of the sticker

20‧‧‧Three-dimensional ruffles

21‧‧‧Three-dimensional hem sheets

22‧‧‧Flexible members for three-dimensional hem

23‧‧‧1st joint

24‧‧‧2nd joint

24a‧‧‧The starting point of the three-dimensional frill

30‧‧‧ Back

31‧‧‧ feet

50‧‧‧Abutment

50a‧‧‧ sloped surface

51‧‧‧Mobile components

HB‧‧‧waist opening

HL‧‧‧ leg opening

A‧‧‧Overlapping area

Fig. 1 is a schematic plan view showing the skin side of a wearer of a disposable diaper.

Fig. 2 is a schematic plan view showing the non-skin side of the disposable diaper.

Fig. 3 is a cross-sectional view of the disposable diaper after the position AA, the position BB, and the position CC in Fig. 2, from Fig. 3A to Fig. 3C.

Fig. 4 is a schematic perspective view of the disposable diaper when worn.

Figure 5, Figure 5A is the outer end of the wide waist in the front waist area FIG. 5B is an explanatory view showing a state in which the adhesive tape is fixed to the central portion in the wide direction of the front waist region.

Fig. 6, Fig. 6A and Fig. 6B are explanatory diagrams of postures of low birth weight infants.

Fig. 7 is a view for explaining a state in which the sheet member between the absorber chip and the leg-surrounding member is folded.

Fig. 8 is an explanatory view showing a state in which the fastening tapes are fixedly adhered to each other.

Fig. 9 is an explanatory view of a method of measuring the fixing adhesive force.

At least the following matters will be apparent from the description of the patent specification and the accompanying drawings.

The utility model relates to a longitudinal direction, a wide direction, and a thickness direction which are orthogonal to each other, and includes: a front waist region, a lower hip region, and a back waist region, and is used for an infant of a weight of 3000 g or less. A disposable diaper characterized by comprising: an absorbent body; and an outer side extending in the wide direction and extending from the rear waist region, a pair of fixed adhesive members, and being fixed along the pair of fixed adhesive members Adhering to the front waist region to form a leg-surrounding member provided on the outer side of the wide-width direction of the absorbent body, and the display is required to fix the pair of fixed adhesive members In the display portion of the to-be-adhered position of the front waist region where the adhesive position is required, the absorber is provided in the longitudinal direction and overlaps the thickness of the display portion with the adhesive target In the overlapping region in the width direction, the length in the width direction of the display portion of the adhered label is equal to or less than the maximum length of the absorbent body in the overlapping region in the width direction.

According to the disposable diaper thus used, the user can guide the fixing adhesive member to the central portion in the wide direction of the front waist region by the display portion of the affixed label that overlaps the absorbent body in the thickness direction. Further, by fixing the adhesive member to the central portion in the wide direction of the front waist region, the waist opening or the leg opening can be made small, and leakage of excrement from each opening can be suppressed. Moreover, even if the wearer bends the knees to the abdomen and bends the foot into an M-shaped M-shaped posture, the contact between the wearer's foot and the fixed adhesive member can be avoided, the fixed adhesive member can be prevented from falling off, and the excrement can be suppressed. leakage.

Regarding the disposable diaper, it is characterized by a pair of three-dimensional pleats are erected on the side of the wearer, and are disposed along the longitudinal direction on both side portions in the wide direction, and the starting point of the three-dimensional hem is located at the side where the stretchable member is provided The outer side end in the wide direction of the sexual region is interposed between the outer side end of the absorbent body in the wide direction.

According to the disposable diaper thus used, the starting point of the three-dimensional hem is closely attached to the wearer together with the absorbent body or the leg-surrounding member, and the three-dimensional hem can be prevented from being crushed. Therefore, the leakage of the excrement can be suppressed by the three-dimensional pleats which are raised and prevented from blocking the excrement.

Regarding the disposable diaper, characterized in that The above-mentioned starting point of the three-dimensional hem is located at: above the above-mentioned stretchable region The inner end of the wide width direction is closer to the end side position of the outer side of the wide direction of the absorbent body.

According to the disposable diaper thus used, the position of the absorbent body is relatively stable compared to the leg-surrounding member that moves together with the wearer's foot, so that the standing point of the three-dimensional hem is set to be stretched and contracted than the leg circumference. The position of the member closer to the side of the absorber allows the starting point of the three-dimensional hem to be stabilized. Therefore, the three-dimensional hem can be erected beautifully, and leakage of excrement can be suppressed.

Regarding the disposable diaper, characterized in that The absorber includes a absorber chip and a cover material of the absorber chip, and the width from the outer end of the absorber chip in the wide direction to the width of the stretchable region of the leg stretchable member is provided The length in the width direction from the inner end in the web direction is equal to or longer than the length in the width direction of the stretchable region.

According to the disposable diaper thus used, it is possible to prevent the stretchable region from being pulled to the inside and being inverted, and the stretchable region can be brought into close contact with the wearer's foot. Therefore, the fit of the leg circumference is improved, and leakage of excrement can be suppressed.

In the disposable diaper according to the present invention, the fixed adhesive member of one of the pair of fixed adhesive members is located on one side of the thickness direction, and the other fixed adhesive member is located above The other side surface in the thickness direction can be fixedly adhered with a fixed adhesive force of 0.1 N/10 mm or more.

According to the disposable diaper thus used, the fixing adhesive member can be fixedly adhered to the position closer to the center in the wide direction of the front waist region, and the waist opening or the leg opening can be made smaller. Therefore, for a particularly small low body When the baby is loaded, it can also suppress the leakage of excrement.

===A summary of disposable diapers ===

The disposable diaper of the present embodiment is an unfolded disposable diaper which is used for an infant having a body weight of 3000 g (g) or less (hereinafter referred to as a low-weight child), and is particularly suitable for a body weight of less than 2500 g. Low birth weight infants, very low birth weight infants weighing less than 1500g, and diapers for ultra low birth weight infants weighing less than 1000g.

Figure 1, for the expansion and use in the extended state A schematic plan view of the skin side (inside) of the wearer of the diaper 1 and a second plan view of the non-skin side (outer side) of the disposable diaper 1 after being stretched and used. From Fig. 3A to Fig. 3C, a sectional view of the disposable diaper 1 after the position AA, the position BB, and the position CC of Fig. 2 is used. Fig. 4 is a schematic perspective view of the disposable diaper 1 after wearing. The disposable diaper 1 has a longitudinal direction, a wide direction, and a thickness direction which are orthogonal to each other, and includes a waist region 1a covering the wearer's abdominal portion and a wearer covering the wearer. The back side portion is followed by the waist area 1c and the sub-hip area 1b between the front waist area 1a and the back waist area 1c.

Disposable disposable diaper 1, as shown in Figure 3, in liquid pervious The absorbent sheet 4 is provided between the surface sheet 2 and the liquid-impermeable back sheet 3. The absorber 4 extends in the longitudinal direction from the front waist region 1a to the back waist region 1c, and includes an absorber chip 41 (for example, composed of pulverized pulp or superabsorbent polymer) that absorbs and holds excrement. And a liquid permeable covering material 42 covering it (for example, a fiber paper sheet or a spunbond nonwoven fabric). In the present embodiment, the planar shape of the absorber 4 is formed into a rectangular shape, and the central portion of the planar shape of the absorber chip 41 in the growth direction is a concave hourglass shape. Further, on the non-skin side of the back film 3, an exterior exterior sheet 5 (for example, a non-woven fabric) which is formed as a disposable disposable diaper 1 is provided. Further, in the drawing, there is no display, and in order to improve the adhesion of the waist, a stretchable member (for example, a stretchable sheet member or a linear stretchable member) that is stretchable in the wide direction can be provided in the back waist region 1c.

In the back waist area 1c, two outer sides are provided in the width direction One pair of adhesive strips 10 (fixed adhesive members) are extended. As shown in Fig. 2, a belt 14 having a rectangular shape and a rectangular shape is provided in the waist region 1a before the non-skin side surface of the exterior sheet 5. The hook sheet 12 is provided on the base material 11 of the fastening tape 10 on the skin side surface in the thickness direction (that is, the surface facing the adhesive tape 14 when folded toward the front waistline 1a side). On the other hand, a sheet 13 to which the label is adhered is provided on the non-skin side surface of the substrate 11. The hook sheet 12 (for example, a sheet of a male material having a surface-shaped fastening tape) is attached to the sheet 13 to be adhered and the belt 14 to be adhered (for example, a sheet or a non-woven fabric of a female material having a surface-shaped fastening tape) It is a structure that can be fixedly attached and detachable. Further, it is also possible to fix the adhesive tape 10 directly to the exterior sheet 5 without providing the tape 14 to be bonded. Moreover, the affixed sheet 13 and the affixed strip 14 may be of different materials.

Waist area 1a before the non-skin side of the back film 3, A display portion 15 on which the pair of fastening tapes 10 are to be fixedly adhered to the position of the front waist region 1a is printed (for example, a rectangular shape which is painted in a different color from the surroundings, and a slashed area in FIG. 2) ). Further, the sheet 5 is attached to the non-skin side of the display portion 15 to be adhered, and the tape 14 to be adhered is a member for recognizing the display portion 15 to be adhered from the outside. Further, in the present embodiment, the tape 14 to be bonded is made larger than the display portion 15 to be adhered, but the size of the tape 14 and the display portion 15 to be adhered are not limited thereto. It can be the same.

Disposable diapers 1 when used, first, one side After the pair of the fastening tape 10 and its peripheral portion are bent toward the center side in the width direction, the pair of fastening tapes 10 are fixedly adhered to the front waist region 1a. The affixed tape is 14. At this time, as shown in Fig. 4, a waist opening HB and a pair of leg circumference openings HL are formed.

As shown in Figure 1, it is used in expansion and in the extended state. In the disposable diaper 1, the central portion in the longitudinal direction is concave, and the side edges in the wide direction of the lower hip region 1b are curved in an arc shape, and the curved portion becomes a pair of leg circumferences when mounted. Opening HL. In addition, the disposable diaper 1 is provided along the pair of leg-opening openings HL (in the longitudinal direction of the present embodiment) on both outer sides of the absorbent body 4 in the width direction. A leg-surrounding member 6 that is stretchable in the longitudinal direction. The leg-surrounding member 6 is fixed between the three-dimensional hem sheet 21 (described later) and the back film 3 and the exterior sheet 5 in a state of being elongated in the longitudinal direction. Therefore, in the disposable disposable diaper 1 in the natural state, the leg-surrounding member 6 is contracted, and a leg-surrounding hem is formed on the peripheral portion of the leg-opening HL, and is attached to the wearing. The legs of the person.

Moreover, in the present embodiment, the leg-surrounding member 6 is stretched. The shrinkable sheet member (for example, a stretchable film formed by melting a urethane or styrene-like thermoplastic elastomer resin into a film shape or a stretchable nonwoven fabric comprising stretch fibers), but is not limited thereto . For example, the leg-stretchable member 6 may be provided with a plurality of linear stretchable members (for example, linear polyurethane elastic fibers or linear natural rubber) spaced apart in the width direction.

Also, the disposable diaper 1 (the muscle of the surface sheet 2) The both side portions in the width direction of the skin side surface are provided with a pair of three-dimensional hem 20 that rises toward the skin side (the wearer side) along the longitudinal direction. Each of the three-dimensional hem 20 includes a three-dimensional hem sheet 21 and a three-dimensional hem elastic member 22. As shown in Fig. 3, the outer side ends of the three-dimensional hem sheet 21 and the outer sheet 5 in the width direction are aligned. On the other hand, the end portion 21a on the center side in the width direction of the three-dimensional hem sheet 21 is folded into the side sheet 2 side (non-skin side), so that a three-dimensional pleated sheet 21 is provided between the two layers. The stretchable member 22 for hem (for example, a linear stretchable member, which is two stretchable members in the present embodiment). The three-dimensional hem elastic member 22 is fixed to the three-dimensional hem sheet 21 in a state of being elongated in the longitudinal direction.

As shown in Fig. 1, the three-dimensional hem sheet 21 is made by the first The joint portion 23 and the second joint portion 24 (for example, a region coated with a hot-melt adhesive) are joined to the surface sheet 2. The first joint portion 23 is provided on the long sides of each of the three-dimensional hem sheets 21 and the front sheet 2 Both ends of the direction are closer to the center side in the width direction than the second joint portion 24. In the present embodiment, three first joint portions 23 are arranged in parallel in the width direction at each end portion of each of the three-dimensional hem 20 in the longitudinal direction. The second joining portion 24 extends from one end in the longitudinal direction of each of the three-dimensional hem sheets 21 and the surface sheets 2 to the other end. Therefore, the three-dimensional gusset sheet 21 between the first joint portions 23 at both end portions in the longitudinal direction has the second joint portion 24 as a starting point, and the contraction force of the elastic member 22 for the three-dimensional hem is from the surface sheet. 2 Stand up towards the skin side.

Moreover, the disposable diaper 1 of the present embodiment is low. Weight for children. Therefore, in a state in which the product is stretched without shrinkage, specifically, the size of the member constituting the disposable diaper 1 (for example, the exterior sheet 5) is elongated to be the same as the size of the member alone or The product size in the state close to the length is preferably the following. The length of the product in the longitudinal direction in the state in which the product is elongated in the longitudinal direction is in the range of 210 to 330 mm, and it is preferable to make the product length of 310 mm for the product weight less than 2500 g and the product length for the weight less than 1500 g. The product length of 270mm and the weight less than 1000g is 230mm. The waist size (the circumference of the waist opening HB) is in the range of 160 to 295 mm, and it is preferable to make the waist size of 273.5 mm for the weight less than 2500 g and the waist size of 220 mm for the weight less than 1500 g. In addition, the waist size is a size in which the front end in the width direction of one of the fastening tapes 10 is fitted to the end portion of the hook sheet 12 of the other fastening tape 10 in the width direction. When the stretchable member is provided on the waist, it is a size in which the product is stretched in the width direction.

===Special problems in low birth weight ===

Fig. 5A is an explanatory view showing a state in which the fastening tape 10 is fixedly adhered to the outer end portion in the width direction of the front waist region 1a, and Fig. 5B is a view showing the fixing of the fastening tape 10 to the width of the front waist region 1a. An explanatory diagram of the state of the central portion in the width direction. Fig. 6A and Fig. 6B are explanatory diagrams of postures of low birth weight infants. For low-weight children weighing less than 3000g, there is always a desire to loosen the disposable diaper 1 as shown in Figure 5A. The adhesive strip 10 is easy to be fixed to the width of the front waist area 1a. The outer end of the direction. At this time, as shown in FIG. 5B, when the fastening tape 10 is fixedly adhered to the central portion in the width direction of the front waist region 1a, the circumference of the waist opening HB or the leg opening HL becomes large. In particular, low birth weight infants born after weighing less than 2,500 g are born with fat before they are attached to the body, so the body or feet are thinner than normal newborns. Therefore, if the disposable diaper 1 is loosely attached as shown in Fig. 5A, a gap is easily formed in the waist opening HB or the leg opening HL.

For low birth weight infants, as shown in Figure 6A or Figure 6B The posture at the time of staying in the tire, that is, the back 30 is bent into a C shape, the knees are bent to the abdomen, and the foot 31 is bent into an M-shaped posture (hereinafter, referred to as a posture). Therefore, a gap h1 is easily generated between the back 30 and the disposable diaper 1. Further, when the fastening tape 10 is fixedly adhered to the outer end portion of the front waist region 1a in the width direction (Fig. 5A), the leg opening HL is directed outward in the width direction, and the leg cuffs become not Will be located at the hips of the legs and will be located on the thinner legs, prone to gaps. Again, low weight If the posture is placed, the leg-opening HL toward the outside in the wide direction will be brought to the central portion in the wide direction and lifted toward the ventral side, so that the rear side of the foot 31 is discarded after use. A gap h2 is easily generated between the diapers 1 . As described above, if a gap is formed between the disposable diaper 1 and the wearer after use, excrement leaks from the slit.

Moreover, if the fastening tape 10 is fixedly adhered to the front waist region 1a The outer end portion in the wide direction is as shown in FIG. 6B, and the foot 31 of the low-weight child taking the posture of the posture is forcibly contacted with the fastening tape 10, or the adhesive tape 10 or its peripheral portion is to be smashed. Turn to the force on the ventral side. As a result, the adhesive tape 10 is detached from the adhesive tape 14 and the excrement leaks out.

Therefore, in the present embodiment, for a weight of 3000 g The disposable diaper used for the infants under the sling is intended to suppress leakage of excrement.

===The display part of the label is 15===

In the disposable diaper 1 of the present embodiment, the absorbent body 4 is provided on the center side in the width direction of the leg-surrounding member 6, and the absorbent body 4 is shown in Fig. 2 in the longitudinal direction. The overlapping area A which overlaps with the display part 15 of the to-be-bonded object in the thickness direction is provided. The overlap region A is a region showing the position in the longitudinal direction, and the one end A1 of the overlap region A coincides with the end 15a on the waist region 1c side after the longitudinal direction of the display portion 15 of the label, and the other end of the overlap region A A2 coincides with the end 4a on the side of the waist region 1a before the longitudinal direction of the absorbent body 4. Then, in this embodiment In the disposable diaper 1, the length L1 in the width direction of the display portion 15 to be adhered is smaller than the length L2 in the width direction of the absorbent body 4 in the overlapping region A. Further, since the center position CL in the wide direction of the display portion 15 of the label is aligned with the center position CL of the absorbent body 4 in the width direction, the outer end 15b of the display portion 15 in the width direction of the label is attached. The outer end 4b (the same side) in the width direction of the absorber 4 located in the overlap region A is located on the inner side (the center side) in the width direction.

Therefore, the absorber is located in the central portion in the wide direction. 4. The user first sees the affixed display portion 15 that is placed on the inner side in the wide direction, and is guided to fix the adhesive tape 10 to the central portion in the width direction of the front waist region 1a (5B). Figure). Therefore, it is possible to prevent the idea of wearing a loose point for the low-weight child, and to fix the fastening tape 10 to the outer end portion in the wide direction of the front waist region.

However, by fixing the fastening tape 10 to the front waist area 1a In the central portion in the wide direction, the circumference of the waist opening HB and the leg opening HL can be made small, and a gap can be suppressed between the openings HB and HL and the wearer, and leakage of excrement can be suppressed. Further, as shown in Fig. 5B, the leg circumference opening HL can be made to face forward. In other words, the leg-opening HL is displaced to the center side in the width direction of the fifth drawing, and can be opened toward the thickness direction. Therefore, the orientation of the foot of the low-weight child adopting the posture is aligned with the direction of the leg-opening HL, and the leg-surrounding member 6 along the leg-opening HL is uniformly attached to the outer circumference of the wearer's foot. Moreover, the leg-surrounding member 6 not only fits on the thin legs but also fits the hips of the legs At the office. Therefore, the occurrence of the gap located in the leg opening HL can be suppressed, and the leakage of the excrement from the leg opening HL can be suppressed. In addition, by fixing the leg-surrounding member 6 to the hip portion of the leg that is smaller than the leg, the position of the leg-surrounding member 6 can be stabilized, and from this point of view, it can be said that It can suppress the leakage of excrement.

Moreover, by fixing the fastening tape 10 to the front waist area 1a The central portion in the wide direction avoids the contact between the feet of the low-weight child in the posture and the fastening tape 10, and prevents the fastening tape 10 from falling off from the tape 14 to be adhered, thereby suppressing leakage of excrement. Further, since the fastening tape 10 is a member having a relatively high rigidity, it is possible to suppress redness and rash of the skin of a low-weight child by avoiding contact between the foot of the low-weight child with weak skin and the fastening tape 10.

Moreover, by being accommodated in the width direction of the absorber 4 On the inner side of the display portion 15 which is adhered to the label, the fastening tape 10 is fixedly adhered to the region of the adhesive label 14 which overlaps with the absorbent body 4. Therefore, the adhesive tape 10 is sandwiched by the relatively rigid upper absorbent body 4, and is subjected to a force from the lower body weight of the child taking the posture to turn the adhesive tape 10 up. Therefore, by the absorbent body 4, the force of turning up the fastening tape 10 is alleviated, so that the fastening tape 10 can be more easily detached from the tape 14 to be adhered.

For the case of low birth weight, for the stabilization or prevention of breathing Intracerebral hemorrhage, it is better to avoid contact with the body as much as possible (so-called minimum treatment). Therefore, the disposable diaper 1 for use in low-weight infants suppresses the leakage of excrement and reduces the number of exchanges of disposable diapers 1, which not only reduces the burden on the nurse or mother, but also maintains the life of the low-weight child. The point of view is also valid.

Moreover, the length in the width direction of the display portion 15 to which the label is attached L1 may be equal to the length L2 in the width direction of the absorber 4 located in the overlap region A. In other words, L1 may be equal to or smaller than L2, and the outer end 15b in the width direction of the display portion 15 to be adhered may be the outer side (same outer side) of the absorbent body 4 located in the overlap region A in the width direction. End 4b, consistent. In this case, the above effect can be obtained by guiding the user to fix the adhesive tape 10 to the central portion in the width direction of the front waist region 1a.

The planar shape of the absorber 4 of the present embodiment is a rectangle Since it is not changed by the position in the longitudinal direction, the length of the absorber 4 in the width direction is constant. However, the length of the absorbent body 4 in the width direction may be varied depending on the position in the longitudinal direction. In this case, the length of the display portion 15 to be adhered in the width direction is also fixed to the front waistline as long as it is below the maximum length of the absorbent body 4 in the overlap region A in the width direction. The central portion of the domain 1a in the width direction.

Also, in Figure 2, it will be painted with different colors from the surrounding. The square printing is used as the display unit 15 to be attached to the label. However, the display unit 15 that is attached to the label may be printed on numbers, characters, lines, illustrations, ellipses, or the like. At this time, the length of the display portion 15 to be adhered in the width direction is from the wheel end portion printed on the one end side in the wide direction to the other end portion printed on the other end side in the wide direction. The length of the width direction. Further, the display unit 15 to which the label is to be attached is not limited to being printed on the back film 3, and the display unit 15 to be attached to the label may be printed on the exterior sheet 5 or the tape 14 to be adhered. Also, not limited to the one that will be glued The display portion 15 is formed by printing, and a portion provided with a material different from the surroundings may be used as the display portion 15 to be adhered. For example, the tape 14 to be affixed may be formed as a member having a different color from the surrounding, and the tape 14 to be affixed may be directly used as the display portion 15 to be affixed.

Moreover, it is also possible to make the label adhered by reason of manufacturing error or the like. The center position CL in the width direction of the display portion 15 is shifted from the center position CL in the width direction of the absorber 4. At this time, the one end 15b in the width direction of the display portion 15 to be adhered has an end 4b on one side in the width direction of the absorber 4 of the overlap region A, and is located on the outer side in the width direction. situation. However, even in this case, the length in the width direction of the display portion 15 to be adhered is set to be less than the maximum length in the width direction of the absorber 4 located in the overlap region A, whereby the display portion to be adhered The other end 15b of the wide direction of the width direction 15 is also located on the inner side (center side) in the width direction than the end 4b on the other side in the width direction of the absorber 4 in the overlap region A. Further, the end 15b on one side in the width direction of the display portion 15 to be adhered does not have too much exposure from the end 4b on one side in the width direction of the absorber 4. Therefore, the same effects as described above can be obtained.

=== leg circumference stretching member 6===

In the disposable diaper 1 of the present embodiment, a pair of leg-surrounding members 6 on both outer sides in the width direction of the absorbent body 4 are provided. Specifically, the innermost (central side) end 6a of the leg-wide stretchable member 6 in the width direction is located more than the outermost end 4a in the width direction of the absorbent body 4. The outside of the wide direction. In other words, since the leg-surrounding member 6 is provided in a sheet member (the three-dimensional hem sheet 21, the back sheet 3, and the exterior sheet 5) which is lower in rigidity than the absorber 4, it is in close contact with the wearer's absorbent body. 4 forms a space with the leg-surrounding member 6, and is formed in a shape like a sleeve. Therefore, the absorbent body 4 is kept in close contact with the body, and the leg-surrounding member 6 follows the movement of the fitting foot by the sheet member which is easy to move freely with the absorbent body 4. Therefore, the wearer is easy to move the foot and is easy to take a posture (it is easy to make the leg circumference opening HL face forward). In other words, even if the wearer adopts the posture, the twist of the absorber 4 can be continuously suppressed, and the leg-surrounding member 6 can be kept in contact with the leg, so that leakage of excrement can be suppressed. Further, in view of the fact that the excrement is accumulated in the space formed between the absorber 4 and the leg-surrounding member 6, it is also possible to suppress leakage of excrement.

Furthermore, in the disposable diaper 1 of the present embodiment, As shown in Fig. 2, the width from the end 41a of the outer side (one side) of the absorbent core chip 41 having the absorbent body 4 to the outer side (one side in the width direction) is wide. The length L3 in the width direction of the end 6a of the inner side (center side) in the web direction is longer than the length L4 in the width direction of the leg-surrounding member 6. Therefore, the length of the sheet member (the three-dimensional hem sheet 21, etc.) which is easy to move between the leg-surrounding member 6 and the highly rigid absorber chip 4a is long, and as described above, the wearer can easily take a position. In addition, since the leg-surrounding member 6 is held in a state of being attached to the leg, it is possible to suppress leakage of excrement.

Figure 7 is a view showing the stretchability of the absorber chip 41 and the leg circumference A diagram in which the sheet member (the three-dimensional hem sheet 21, etc.) between the members 6 is folded. Further, in the drawings, the cover member 42, the back sheet 3, the exterior sheet 5, and the like of the absorber 4 are omitted for the sake of brevity. In the disposable diaper 1 of the present embodiment, as described above, in order to guide the user to fix the adhesive tape 10 to the central portion in the width direction of the front waist region 1a, as shown in FIG. The outer side end 41a of the absorbent body 4, particularly the high-strength absorber chip 41, in the wide direction is used as a starting point, and the three-dimensional hem sheet 21 or the like is easily inserted into the inner side (center side) in the wide direction. Therefore, the length L3 in the width direction from the outer end 41a of the absorbent body chip 41 in the wide direction to the inner end 6a in the wide direction of the leg stretchable member 6 is made larger than the leg stretchable member 6 When the length L4 in the width direction is also short, the leg-surrounding member 6 is pulled toward the inner side (non-skin side) and is inverted. In this manner, the sheet-like leg-surrounding member 6 cannot abut against the wearer's foot with the surface, and the adhesion of the leg-opening HL is lowered, and the excretion is leaked.

Here, the disposable diaper 1 as in the present embodiment is used. In the wide direction L3 from the outer side end 41a of the absorbent core chip 41 in the wide direction to the inner side end 6a of the leg stretchable member 6 in the wide direction, the width of the leg stretchable member 6 is made wide. The length L4 or more in the width direction may be sufficient. By doing so, as shown in Fig. 7, the three-dimensional pleated sheet 21 or the like is folded into a zigzag shape, and the region (the stretchable region) in which the leg-surrounding elastic member 6 is provided is a face (orthogonal to the thickness direction). Keep it.) Therefore, since the leg-surrounding member 6 can be brought into contact with the wearer's foot with the surface, the fit of the leg-opening HL can be improved, so that the excrement can be suppressed. leakage.

The planar shape of the absorber chip 41 of the present embodiment is sand. Leak shape. Therefore, from the outermost end of the outer side end 41a of the absorber chip 41 in the wide direction, the end on the most central side in the width direction (the outer end 41a of the concavity portion), and the inner end 6a in the width direction of the leg-surrounding member 6 The length L3 in the width direction may be equal to or longer than the length L4 in the width direction of the leg-surrounding member 6. Preferably, as shown in Fig. 2, the length L5 in the width direction from the outermost end 41a in the width direction of the absorber chip 41 to the inner end 6a in the width direction of the leg-surrounding member 6 is as long as The length L4 of the leg-surrounding member 6 in the width direction may be equal to or greater than the length L4. By doing so, the leg-surrounding member 6 can be more reliably brought into contact with the wearer's foot with the surface.

Further, it is not limited to the use of the leg-surrounding member 6 as the stretchability The sheet member may be a leg-stretchable member 6 by a plurality of linearly-shaped stretchable members juxtaposed in a wide direction. In this case, the stretchable region in which a plurality of linear stretchable members are provided is held in a surface as described above, and a plurality of linear stretchable members (stretchable regions) can be brought into contact with each other. The foot of the person can improve the fit of the leg opening HL.

Moreover, in the manufacturing line of the disposable diaper 1 after use, it is In the unfolded state, the disposable diaper 1 is folded in the width direction or the long side direction. Therefore, the bending position in the wide direction may be provided at a position where the leg-surrounding member 6 does not exist. By doing so, it is possible to prevent the sheet-like leg-surrounding member 6 from being creased, and the leg-surrounding member 6 can easily come into contact with the wearer's foot with the surface. Also, by widening the absorber 4 The outermost end 4a is used as a bending position, and as shown in Fig. 7, the three-dimensional hem sheet 21 or the like is easily folded into a zigzag shape.

===Three-dimensional hem 20===

In the disposable diaper 1 of the present embodiment, as shown in Fig. 1, the starting point of the three-dimensional hem 20, that is, the three-dimensional hem sheet 21 is joined to the surface sheet 2 (one side in the width direction) The end 24a of the inner side (center side) in the width direction of the second joint portion 24 is located at the inner side (center side) of the leg-length stretchable member 6 in the width direction (one side in the width direction) 6a is between the outer end 4a of the absorbent body 4 in the width direction (on one side). That is, the starting point of the three-dimensional hem 20 is provided between the absorbent body 4 which is in close contact with the wearer's body and the leg-surrounding member 6 which is in close contact with the wearer's foot. By doing so, it is possible to suppress the three-dimensional hem 20 from being crushed, and the three-dimensional hem 20 can prevent the discharge of the excrement, thereby suppressing the leakage of the excrement. In particular, in the case of a low-weight child in a posture, the disposable diaper 1 is easily attached to the wearer. Therefore, the sheet member (the three-dimensional hem sheet 21 or the like) which is located between the absorbent body 4 and the leg-surrounding member 6 is easy to move freely, that is, by providing the three-dimensional hem 20 at a portion which is easily separated from the wearer. Since the starting point of the three-dimensional hem 20 can be raised in the space between the absorber 4 and the leg-surrounding member 6, it is effective.

Further, the outer side end of the leg-wide stretchable member 6 in the width direction 6b, the most easy to stick to the wearer's feet. Therefore, at least the outer side end 6b and the absorber 4 in the wide direction of the leg-surrounding member 6 (stretchable region) Between the outer end 4a of the wide direction, the starting point of the three-dimensional hem 20 is provided, and the same effect as described above can be obtained.

Moreover, the leg-extending member 6 is closely attached to the leg of the wearer, It is easier to move the position and has lower rigidity than the absorbent body 4 that is in close contact with the wearer's body. Here, as shown in Fig. 1, the disposable diaper 1 of the present embodiment is a starting point of the three-dimensional hem 20 (the width of the second joining portion 24) (the one side in the width direction) The inner end 24a) of the direction is provided in the width direction (one side) of the absorbent body 4 in comparison with the inner end 6a of the leg-length stretchable member 6 in the width direction (one side in the width direction) The outer end 4a side. In other words, the length L7 in the width direction from the standing end 24a of the three-dimensional hem 20 to the inner end 6a in the width direction of the leg-surrounding member 6 is taken from the starting point 24a of the three-dimensional hem 20 to the absorption. The length L6 in the width direction of the outer end 4a of the body 4 in the width direction is made shorter. By doing so, the position of the vertical starting point 24a of the three-dimensional hem 20 can be stabilized, and the three-dimensional hem 20 can be erected beautifully. Therefore, it is possible to more reliably suppress the leakage of excrement.

Further, in the present embodiment, the rigidity of the absorber 4 is affected. The planar shape of the large absorber chip 41 is formed into an hourglass shape, but is not limited thereto, and may be, for example, a rectangular shape. By doing so, the standing end 24a of the three-dimensional hem 20 can be provided on the outer end 41a side in the width direction of the absorber chip 41, compared to the inner end 6a in the wide direction of the leg-surrounding member 6. . Therefore, the position of the standing end 24a of the three-dimensional hem 20 can be stabilized, and the three-dimensional hem 20 can be erected beautifully.

=== Velcro tape 10===

Fig. 8 is an explanatory view showing a state in which the fastening tapes 10 are fixedly adhered to each other. As shown in Fig. 1, the fastening tape 10 of the present embodiment is provided with a hook sheet 12 on the side of the skin (the front waist region 1a is folded at the time of folding and the facing surface 14), and is not skinned. The side is provided with a affixed sheet 13 that can be fixedly adhered to the hook sheet 12. Therefore, in the disposable diaper 1 of the present embodiment, as shown in Fig. 8, one of the pair of fastening tapes 10, one side of the thickness direction of the one fastening tape 10a (folded into the front waistline) The other side of the other side of the adhesive tape 10b in the direction of the area 1a (the surface facing the inner side of the front waist area 1a) is fixedly adhered. When mounting, first, the hook sheet 12 of one of the fastening tapes 10a is fixedly adhered to the central portion in the width direction of the tape-attached tape 14, and thereafter, the adhesive tape of one of the fastening tapes 10a is adhered. Above the target sheet 13, the hook sheet 12 of the other adhesive strip 10b is fixedly adhered.

If the fastening tapes 10 are not fixed to each other, they can also be borrowed. The adhesive tape 10 is fixedly attached to the center of the width direction of the front waist region 1a by shifting the fixed adhesive position of each of the fastening tapes 10 in the longitudinal direction. However, at this time, there is a gap in the leg opening HL of one of the legs, or the absorber 4 is twisted, so that the excrement leaks out. Therefore, as in the present embodiment, by fixing the adhesive tapes 10 to each other, the waist opening HB or the leg opening HL can be made smaller, and the distortion of the absorbent body 4 can be prevented. Moreover, it is more sure to prevent the fastening tape 10 from coming into contact with the feet of the low-weight child who takes the posture. Therefore, for smaller and lower weight children, they are discarded after use. In the case of the diaper 1, it is also possible to suppress leakage of excrement.

Moreover, in order to prevent the fastening tape 10 from coming off each other when wearing, The fixing adhesive force of the fastening tapes 10 (the fixing adhesive force of the hooking sheets 12 and the adhered sheets 13) is made 0.1 N/10 mm or more. On the other hand, if the fixing adhesive force is too strong, the adhesive tape 10 becomes difficult to be removed when the disposable diaper 1 is exchanged, so that the fixing adhesive force of the fastening tape 10 is 0.5 N/10 mm or less. ideal. Similarly, it is preferable that the hook sheet 12 has a fixing adhesive force to the tape 14 to be bonded, and is preferably 0.1 N/10 mm or more and 0.5 N/10 mm or less. Further, the adhesive sheet 13 may be provided only on one of the fastening tapes 10, and in this case, the material can be reduced. However, by providing the affixed sheet 13 on both sides of the fastening tape 10, the user does not have to care about the adhesive tape 10 to be fixedly adhered.

Moreover, the fastening tape 10 of this embodiment has a substantially trapezoidal shape, and the length of the front end portion and the root end portion in the wide direction is shorter in the longitudinal direction. Therefore, as shown in Fig. 8, the upper fastening tape 10b is provided with a region (hatched portion) which does not overlap with the lower fastening tape 10a, and the non-overlapping region can be fixedly adhered to the adhered tape 14 . Moreover, the root end portion is more susceptible to the force from the foot of the low-weight child who takes the posture of the positioning than the front end portion of the fastening tape 10b. Here, the fixing adhesive force of the fastening tape 10 to the adhesive tape 14 can be increased to be stronger than the fixing adhesive force of the fastening tape 10 to each other. By doing so, the root end portion (hatched portion) of the upper side of the fastening tape 10b is fixedly adhered to the tape 14 to be adhered by a strong fixing adhesive force, so that the upper fastening tape 10b is less likely to fall off. It can suppress the leakage of excrement. On the other hand, the front end portion of the upper side of the fastening tape 10b is The weaker fixing adhesive is fixedly adhered to the lower side of the fastening tape 10a. Therefore, when the disposable diaper 1 is exchanged, the user can easily pinch the front end portion of the upper side of the fastening tape 10a, and the adhesive tape 10 can be easily removed.

Figure 9, is a description of the measurement method of the fixed adhesion Figure. For the measurement of the fixed adhesive force (N/10 mm) of the adhesive tapes 10, for example, an Auto Graph tester AG-X10plus (manufactured by Shimadzu Corporation) as an example of a tensile tester was used, and the test was carried out as follows. First, from the adhesive tape 10 of the measuring object, a region in which the hook sheet 12 is provided is cut out into a rectangular shape to obtain a sample S1. Similarly, from the fastening tape 10, a region in which the sheet 13 to be bonded is provided is cut into a rectangular shape to obtain a sample S2. Next, the hook sheets 12 of the sample S1 are superposed on the adhered sheet 13 of the sample S2 in a state in which the longitudinal direction of the disposable diapers 1 is aligned with the wide direction of the two samples S1 and S2. Then, on the two samples S1 and S2, a 700 g roller was rolled at a speed of 5 mm/min toward the width direction of the disposable diaper 1 (the peeling direction of the fastening tape 10) to make two samples. S1 and S2 are fixedly adhered to each other.

Secondly, set the two samples S1 and S2 that are fixed to each other. Place on a tensile tester. Specifically, the side of the sample S2 is fixed to the inclined surface 50a of the base 50, and the end of the sample S1 is held by the moving member 51. Further, the wide direction of the disposable diaper 1 is inclined along the inclined surface 50a. Thereafter, the moving member 51 is moved upward with respect to the base 50 at a constant moving speed of 300 mm/min, and the two samples S1 and S2 are peeled off. Then, the direction in which the moving member 51 stretches the sample S1 (the direction in which the sample S1 is applied with the peeling force) is angled with the inclined surface 50a. At 135 degrees, the load value is obtained.

Finally, convert the obtained load value into a disposable type. The sample S1 (hook sheet 12) in the longitudinal direction of the diaper 1 has a load value of 10 mm, and the converted value is defined as the above-described fixed adhesive force (N/10 mm). Further, the fixing adhesion of the hook sheet 12 to the tape 14 to be bonded can be similarly measured.

Above, the above embodiment is for making the invention easy It is understood that the interpreters are not intended to limit the invention. Further, the present invention is not limited or modified, and it is obvious that the present invention encompasses the equivalent.

For example, it may be a disposable type that does not have a three-dimensional hem 20 The disposable diaper 1 of the diaper 1 or the three-dimensional hem 20 or the standing point 24a of the three-dimensional hem 20 is located on the absorbent body 4 or on the outer side in the width direction of the leg-surrounding member 6. The disposable diaper which is located on the side of the leg-retractable member 6 from the absorbent body 4, or the inner side in the width direction from the outer end 41a in the width direction of the absorbent core chip 41 to the inner side in the width direction of the leg-surrounding member 6 The length in the width direction of the end 6a is a disposable diaper 1 which is shorter than the length in the width direction of the leg-surrounding member 6, or the adhesive tape 10 does not have the sheet 13 which is adhered. Disposable diaper 1.

Claims (4)

A disposable diaper having a long side direction, a wide direction, and a thickness direction orthogonal to each other, and having: a front waist area, a lower hip area, and a back waist area for giving an infant weighing less than 3000 g The disposable disposable diaper used in the present invention is characterized in that: an absorbent body and an outer side extending in the width direction and extending from the rear waist region to form a fixed adhesive member, and a pair of fixed adhesive members fixedly adhered to the front waist region to form a leg-surrounding member provided on the outer side of the wide-width direction of the absorbent body, and a display member The pair of fixed adhesive members are fixedly adhered to the display portion of the adhesive target at the required adhesive position of the front waist region, and the absorbent body is provided on the longitudinal direction and overlaps with the display portion of the adhesive target The overlapping area in the thickness direction, the length of the display portion of the adhered label in the width direction is the most in the width direction of the absorber located in the overlapping region The length is equal to or less; a pair of three-dimensional hem is raised toward the wearer side, and both sides of the wide direction are disposed along the longitudinal direction, and in the wide direction, the starting point of the three-dimensional hem is located at: The outer side of the outer side end in the wide direction of the stretchable region of the leg-surrounding member is provided, and the outer width of the absorbent body is The outer side of the side end. The disposable diaper according to claim 1, wherein the vertical starting point of the three-dimensional hem is located at an inner end of the widening direction of the stretchable region, closer to the absorption The end side position of the outer side of the body in the above wide direction. The disposable diaper according to claim 1 or 2, wherein the absorbent body comprises an absorber chip and a covering material of the absorber chip, from the width direction of the absorber chip The length of the wide direction in the width direction of the stretchable region is higher than the length in the width direction of the stretchable region until the inner leg end of the stretchable region is provided . The disposable diaper according to claim 1 or 2, wherein one of the pair of fixed adhesive members is located on one side of the thickness direction, and the other One of the fixed adhesive members is located on the other side in the thickness direction, and can be fixedly adhered with a fixed adhesive force of 0.1 N/10 mm or more.