JP2018051226A - Tape type disposable diaper, and manufacturing method of the same - Google Patents

Abstract

A tape-type disposable diaper having a pair of upper and lower connection projections with hook members is provided with improved followability in the front-rear direction of the connection region when cross-fastened. A connecting region (5c) having a hook material (9) detachably connected to an abdominal portion (F) is provided in a waist-side connecting protrusion (51) and a leg-surrounding-side connecting protrusion (52). , The connecting region 5c of the connecting protrusion 51 on the waist side has an easily bendable portion 7 that continues obliquely upward toward the tip side, and the connecting region 5c of the connecting protrusion 52 on the leg circumference side This problem is solved by having the easily bendable portion 7 continuing obliquely downward toward the distal end side. [Selection drawing] Fig. 8

Description

  The present invention relates to a tape-type disposable diaper and a method for producing the same.

  A general tape-type disposable diaper has a ventral part extending from the center in the front-rear direction to the front side, and a back side part extending to the rear side, and is a connecting protrusion that protrudes from both sides of the back side part. When connecting to the body, the connecting protrusion is turned from both sides of the waist to the ventral outer surface and connected to the ventral outer surface (see, for example, Patent Documents 1 and 2).

  Such a tape-type disposable diaper is widely used for nursing care (adult use) as well as being used for infants, but has a problem that the waist and legs are easily loosened.

  For this reason, conventionally, a connecting protrusion is provided at each of the side portions of the dorsal portion at the waist end and the leg periphery end (see, for example, the example shown in FIG. 8 of Patent Document 1). The waist-side connecting projection and the leg-around connecting projection cross each other, and the waist-side connecting projection is pulled obliquely downward to connect the waist-side firmly, and the leg-around side A so-called cross stop is recommended in which the connecting protrusions are connected while being pulled obliquely upward to firmly tighten around the legs.

  Further, as a device that enables a similar mounting form, there is also known a bifurcated structure in which the front end side of an integral connection panel is divided into two and a pair of upper and lower connection projections is formed (for example, Patent Document 1). (See the example shown in FIG. 9).

  Furthermore, it has also been proposed to form a pair of upper and lower connecting protrusions by dividing the front end side of the connecting panel into upper and lower stages by perforations (see Patent Documents 1 and 2). The above solution technique is common in that a pair of upper and lower connecting protrusions are provided.

  In addition, a pair of upper and lower connecting protrusions has been proposed, and each protrusion can be elastically expanded and contracted in the width direction (see Patent Document 2).

  On the other hand, in these tape-type disposable diapers, an adhesive may be provided in the connection region that connects the connecting protrusion to the ventral outer surface. However, the adhesive has a weak locking force, and is adhesive when repeatedly locked. Since the force is reduced, a hook material (male material) of a mechanical fastener (surface fastener) is often provided at present. The hook material has a large number of J-shaped or mushroom-shaped pins formed on the surface of the sheet-like base portion, and is entirely formed of resin.

  However, the hook material is a hard member. Further, when the pair of upper and lower connecting protrusions are connected to the ventral portion, the hook members are arranged in the front-rear direction, and the dimension of the hook member in the connecting region of the ventral portion is increased. That is, in the mounted state, a connection region that is difficult to deform is formed long in the front-rear direction. Therefore, for example, when a heel extending in the width direction is generated in the abdominal part, such as when changing from the supine position to the sitting position in the mounted state, the hook material 9 is attached as shown in FIG. Since the connecting region 5c that is provided is less likely to deform following the heel of the ventral portion F, the hook material 9 is partially peeled off (for example, a portion surrounded by a dotted line in the figure). ) Is likely to occur. In particular, when the crossing is stopped, the hook material assumes an inclined posture and the longitudinal dimension becomes long, so that the follow-up deformability in the longitudinal direction of the connection region is greatly deteriorated.

  As for the hardening by the hook material, it is known to improve the flexibility by dividing the hook material (see, for example, Patent Documents 3 and 4), but this is applied to a pair of upper and lower connecting protrusions. However, there is no change in the follow-up deformability in the front-rear direction of the connection region when the cross is stopped.

Japanese Patent No. 4683522 JP 2010-022587 A JP 2004-344515 A Japanese National Patent Publication No. 11-507286

  Then, the main subject of this invention is improving the follow-up deformability of the connection area | region of the connection area | region when it cross-stops in the tape type disposable diaper which provided the protrusion part for connection which has a hook material up and down.

The typical embodiments of the present invention that have solved the above problems are as follows.
<First aspect>
Having a crotch portion, a ventral portion and a dorsal portion extending respectively to the front side and the rear side of the crotch portion,
Connection protrusions are provided at the waist side and leg periphery side portions of each side portion of the back side portion, or the waist side connection protrusion portions and the leg periphery side at each side portion of the back side portion. Are provided in an integrated state through the perforation,
In a tape-type disposable diaper in which a connection region having a hook material that is detachably connected to the abdomen part is provided on the connection protrusion on the waist side and the connection protrusion on the side around the leg,
The connection region of the waist-side connection protrusion has an easy-bending portion that continues obliquely upward toward the tip side,
The connecting region of the connecting protrusions on the side around the legs has an easily bent portion that continues obliquely downward toward the tip side.
A tape-type disposable diaper characterized by that.

(Function and effect)
In the tape-type disposable diaper of the present invention, when cross-stopped, both the easily bent portion of the connecting region of the connecting protrusion on the waist side and the easily bent portion of the connecting region of the connecting protrusion on the leg side are both in the width direction. Or since it becomes the arrangement | positioning along the inclination direction close | similar to it, it becomes easy to bend a connection area | region following a front-back direction change. Therefore, even when the abdomen is folded in the cross-fastened state and a hook extending in the width direction is generated in the hook material connection region in the ventral part, the connection region easily deforms following the vent in the ventral part. , Hook material partial peeling is less likely to occur. Note that “diagonally upward toward the distal end” means a direction that is located on the waist side toward the distal end side, and “oblique downward toward the distal end side” refers to a direction around the leg as it proceeds toward the distal end side. Means the direction in which it is located.

<Second aspect>
The tape-type disposable diaper according to the first aspect, wherein the easy-folding portion that continues obliquely upward and the easy-folding portion that continues obliquely downward have an acute angle crossing angle of 30 to 60 degrees with respect to the width direction.

(Function and effect)
The angle of inclination of the easily bent portion may be determined as appropriate according to the protruding length of the connecting protruding portion, etc., but in the normal case, by setting the angle within the above range, the easily bent portion will be in the width direction when cross-stopped. It becomes easy to become near.

<Third Aspect>
The connecting region of the connecting protrusion on the waist side and the connecting region of the connecting protrusion on the side around the leg have an easily bent portion that continues along the width direction, and the easily bent portion that continues obliquely upward. The tape type disposable diaper of the 1st or 2nd aspect which does not have the easy bending part which follows the direction other than the easy bending part which continues diagonally downward, and the easy bending part which continues along the width direction.

(Function and effect)
By having such an easy-bending portion that continues along the width direction, even when the connecting protrusion is connected to the ventral portion in a posture substantially along the width direction without cross-stopping, the front-rear direction of the connection region The following deformability is improved.

<Fourth aspect>
The easy-folding part is the tape-type disposable diaper according to any one of the first to third aspects, in which a separation part where the hook material is separated into a plurality of parts is located.

(Function and effect)
It is preferable that the easy-bending portion is a portion where such a separating portion of the hook material is located (that is, a plurality of hook materials are arranged at intervals or without being spaced apart) because the following deformability is excellent.

<Fifth aspect>
The easy-folding part is a tape-type disposable diaper according to any one of the first to third aspects, in which the thin part formed on the hook material is located.

(Function and effect)
It is preferable that the easy-bending portion is a portion where such a thin portion of the hook material is located because manufacturing becomes easy.

<Sixth aspect>
Having a crotch portion, a ventral portion and a dorsal portion extending respectively to the front side and the rear side of the crotch portion,
Connection protrusions are provided at the waist side and leg periphery side portions of each side portion of the back side portion, or the waist side connection protrusion portions and the leg periphery side at each side portion of the back side portion. Are provided in an integrated state through the perforation,
In the method for manufacturing a tape-type disposable diaper, wherein the connecting protrusion is provided with a connecting region having a hook material that is detachably connected to the ventral part.
In manufacturing the connecting protrusion,
Affixing the hook material to the base material that forms the connecting protrusion,
After attaching the hook material to the base material, the hook material is continuously cut in a predetermined direction without cutting the base material, or before or after the hook material is attached to the base material. To form an easy tear line continuous in a predetermined direction,
Thereafter, the base material and the hook material are pulled in a direction intersecting with the direction of cutting the hook material or the direction of the easy tear line, the base material is stretched and the hook material is separated at the position of the cutting position or the easy tear line, Producing a connecting protrusion having a connecting region having a plurality of hook materials separated by a separating portion;
A method for producing a tape-type disposable diaper characterized by the above.

(Function and effect)
By such a method, it is possible to easily manufacture a connecting protrusion having a plurality of hook members separated by the separating portion and having a connecting region having excellent followability. It is particularly suitable when dividing a single hook material into a number of hook materials.

  As described above, according to the present invention, in a tape-type disposable diaper having a pair of upper and lower connecting protrusions having a hook material, the follow-up deformability in the front-rear direction of the connecting region when cross-stopped is improved, etc. Benefits are provided.

It is a top view which shows the inner surface side of the expansion | deployment state of a tape type disposable diaper. It is a top view which shows the outer surface side of the expansion | deployment state of a tape type disposable diaper. It is iii-iii sectional drawing of FIG. It is iv-iv sectional drawing of FIG. It is an enlarged view of the protrusion part for connection. It is an enlarged view of the protrusion part for connection. It is an enlarged view of the connection area | region of the unfolding state. It is an enlarged view of the connection area | region of a mounting state. It is a perspective view which shows a mounting state. It is a perspective view which shows a mounting state. It is an expanded sectional view when there is no (a) easy bending part and (b) there is an easy bending part. It is an enlarged view of the connection area | region of the unfolding state. It is sectional drawing which shows the various examples of an easy bending part. It is sectional drawing which shows the manufacturing process of the protrusion part for a connection roughly. It is a top view which shows roughly the manufacturing process of the protrusion part for a connection.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
1-7 has shown an example of the tape-type disposable diaper which concerns on this invention, and this disposable diaper absorbs between the inner surface of the liquid-impermeable sheet 1, and the liquid-permeable top sheet 2. FIG. It has a basic structure with a body 3 interposed.

(Absorber)
As the absorbent body 3, it is possible to use a laminate of pulp fibers, an aggregate of filaments such as cellulose acetate, or a nonwoven fabric, and a mixture obtained by mixing and fixing a superabsorbent polymer as necessary. . Moreover, the absorber 3 can be wrapped with crepe paper (not shown) as needed. Moreover, the shape of the absorber 3 can be appropriately determined such as a rectangular shape as well as an hourglass shape as shown in the figure. It is desirable that the basis weight of the absorbent body 3 is about 100 to 500 g / m ² and the thickness is about 1 to 15 mm. The basis weight of the superabsorbent polymer is desirably about 0 to 300 g / m ² .

(Liquid impervious sheet)
The liquid-impermeable sheet 1 extends outward from the periphery of the absorber 3 and blocks movement of excrement absorbed by the absorber 3 to the back side. As the liquid-impermeable sheet 1, in addition to a plastic film such as a polyethylene film, a sheet having moisture permeability can be used without impairing water shielding from the viewpoint of preventing stuffiness. This water-impervious / breathable sheet is a microporous sheet obtained by, for example, melt-kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then stretching in a uniaxial or biaxial direction. Can be used. The weight per unit area of the liquid-impermeable sheet 1 is preferably 13 to 40 g / m ² , and the thickness is preferably 0.01 to 0.1 mm.

  In order to make the outer surface of the diaper look and feel like cloth, the entire back surface of the liquid-impermeable sheet 1 is covered with an exterior sheet 12, and the outer peripheral edges of both sheets 1 and 12 extend to the outer peripheral edge of the diaper. Yes. Although various nonwoven fabrics can be used as the exterior sheet 12, a spunbond nonwoven fabric is preferable. The exterior sheet 12 can be omitted.

(Top sheet)
As the top sheet 2, a perforated or non-porous nonwoven fabric or a perforated plastic sheet is used. As the material fiber constituting the non-woven fabric, synthetic fibers such as polyethylene or polypropylene such as olefin, polyester and amide, recycled fibers such as rayon and cupra, and natural fibers such as cotton can be used. Moreover, as a processing method of a nonwoven fabric, well-known methods, such as the spunlace method, the spun bond method, the SMS method, the thermal bond method, the melt blown method, the needle punch method, the air through method, the point bond method, can be used. The fiber basis weight of the nonwoven fabric used for the top sheet 2 is preferably 15 to 30 g / m ² , and the thickness is preferably 0.05 to 1 mm.

  The top sheet 2 extends outward from the periphery of the absorber 3, and a portion extending outward from the side edge of the absorber 3 is fixed to the liquid-impermeable sheet 1 with a hot melt adhesive or the like. In addition, the dot pattern in a figure represents the adhering part.

(Side barrier sheet)
As shown in FIGS. 3 and 4, both sides of the inner surface of the article (in the illustrated embodiment, the surface of the liquid-impermeable sheet 1 extending from the side edge surface of the top sheet 2 to the side thereof) A portion 4x on the outer side in the width direction of the partial barrier sheet 4 is attached over the entire front-rear direction. As the side barrier sheet 4, various non-woven fabrics (spunbond non-woven fabrics are suitable), plastic films similar to those used for liquid-impermeable sheets, or laminated sheets thereof can be used. From the viewpoint of the touch, a nonwoven fabric subjected to a water repellent treatment is preferable. The portion 4c on the center side in the width direction of the side barrier sheet 4 is fixed to the inner surface of the article (the surface of the top sheet 2 in the illustrated embodiment) by means such as hot melt adhesive at both ends in the front-rear direction. The middle part is a non-fixed free part, and the elongated elastic elastic member 4G extends in the front-rear direction at the tip part (end part on the center side in the width direction in the unfolded state) of the free part. It is fixed with a hot melt adhesive or the like. In the illustrated example, a plurality of the elongated elastic elastic members 4G are provided with a predetermined interval, but one may be used. The elongated elastic elastic member 4G (same for other elongated elastic elastic members) includes natural rubber or synthetic rubber formed into a thread shape, string shape, belt shape, etc., specifically, styrene rubber, olefin rubber, urethane. Commonly used materials such as rubber, ester rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, silicon and polyester can be used. As shown in FIG. 4, this free portion constitutes a side barrier that stands up with respect to the inner surface of the article (the surface of the top sheet 2 in the illustrated embodiment) as a result of the contraction force of the elongated elastic elastic member 4 </ b> G acting. The base end 4b of the standing portion is located at the boundary between the fixed portion 4x on the outer side in the width direction and the inner portion 4c in the side barrier sheet 4. In FIG. 1, a diagonally upward hatched portion indicates a fixed portion of the side barrier sheet 4.

(Flap part etc.)
At both ends in the front-rear direction of the disposable diaper 100, the liquid-impermeable sheet 1, the exterior sheet 12, the top sheet 2, and the side barrier sheet 4 are respectively extended to the front and rear sides rather than the front and rear ends of the absorber 3. An end flap portion EF that does not exist is formed. On the other hand, on the left and right sides of the disposable diaper 100, the liquid-impermeable sheet 1, the exterior sheet 12, the top sheet 2, and the side barrier sheet 4 are respectively extended from the side edges of the absorbent body 3 to the side. The side flap part which 3 does not exist is formed. Of the side flap portions, the portions located in the waist side portion of the abdominal side portion F and the waist side portion of the back side portion B are extended laterally from the intermediate portion therebetween, and these portions are It becomes the waist side flap part SF which becomes the trunk periphery part of a diaper.

  Further, the disposable diaper 100 includes a crotch portion C in which both side edges (portions serving as edges of leg openings) Le are defined as a constricted curved shape along the leg circumference in the front-rear direction, and the front and rear sides of the crotch portion C. Each of which has a ventral side waist portion TF and a back side waist portion TB in which both side edges are straight along the front-rear direction.

(Connecting protrusion)
The connection panel 5 that protrudes from the side edge is attached to the back waistline TB, and a front target tape 6 is attached to the surface of the abdomen waistline TF along the width direction. The connection panel 5 protrudes outward in the width direction from between the fixing portion 5f fixed between the sheets in the back waistline portion TB by means such as hot melt adhesive and the sheet on the side edge of the backside waistline portion TB. A main body part 5e, and by separating the perforation 10 provided in the middle in the front-rear direction of the main body part 5e, it can be separated into a connecting protrusion part 51 on the waist side and a connecting protrusion part 52 on the leg periphery side. It has become.

  As shown in FIG. 6, the waist-side connecting projection 51 and the leg-around connecting projection 52 may be separately formed by cutting or the like in advance, instead of being divided by the perforation 10. Although not shown, the connecting protrusions 51 and 52 formed separately may be respectively attached to the waist portion and the leg periphery portion.

  A connection region 5c having a hook member 9 that is detachably connected to the outer surface of the abdominal portion F is provided on the inner surfaces of the connecting protrusion 51 on the waist side and the connecting protrusion 52 on the leg periphery side. In the form shown in FIG. 1, the connecting region 5 c is provided only at the distal ends of the connecting protrusion 51 on the waist side and the connecting protrusion 52 on the leg periphery side, but as shown in FIG. It can also be provided at a plurality of locations at intervals. The hook material 9 is a male material of a mechanical fastener (surface fastener), and has a sheet-like base portion 9b and a large number of pins 9p (hook-like projections) protruding from the surface of the base portion 9b (FIG. 11, (See FIG. 13). The front target tape 6 has a large number of loops 6r (see FIG. 11) on which pins are detachably attached, and a female material of a mechanical fastener (surface fastener) is preferably used. When a nonwoven fabric is used for 12, the front target tape 6 can be omitted because the fibers of this nonwoven fabric function as a loop.

  As the connection panel 5, a nonwoven fabric having sufficient strength, in particular, a sheet obtained by laminating a plurality of layers of nonwoven fabric, or a polylaminated nonwoven fabric can be suitably used.

  As shown in FIG. 5, the waist-side coupling protrusion 51 and the leg-surrounding coupling protrusion 52 may include an expansion / contraction portion in which the main body portion 5 e elastically expands and contracts in the width direction. The method for forming the stretchable part is not particularly limited. For example, the connecting protrusions can be formed of a material that elastically stretches itself such as a stretchable nonwoven fabric or a rubber sheet. At least a part in the width direction of the main body portion 5e of the projecting portions 51 and 52 is formed by bonding the first sheet and the second sheet, and between the first sheet and the second sheet. By fixing the elastic expansion / contraction member 20, it can be expanded and contracted. As the elastic member 20, a sheet-like member can be used in addition to an elongated member.

  Characteristically, as shown in FIG. 7, the connection region 5 c of the waist-side connection protrusion 51 has an easily bendable portion 7 that continues obliquely upward toward the distal end side, The connection region 5c of the connection protrusion 52 has an easy-bending portion 7 that continues obliquely downward toward the tip side. For this reason, as shown in FIG. 9, when connecting to the front target tape 6 with the connecting protrusion 51 on the waist side obliquely downward and the connecting protrusion 52 on the leg periphery side obliquely upward, When the cross is fixed as shown in FIG. 8, the easy bending portion 7 of the connecting region 5c of the connecting projection 51 on the waist side and the easy bending of the connecting region 5c of the connecting projection 52 on the leg periphery side are shown in FIG. Since both the portions 7 are arranged along the width direction or an inclination direction close thereto, as shown in FIG. 11B surrounded by a dotted line, the connecting region 5c is easily bent following the change in the front-rear direction. Therefore, when the abdomen is folded in a cross-fastened state, and the wrinkle extending in the width direction is generated in the connection region 5c of the hook material 9 in the abdominal side portion F, the connection region 5c follows the wrinkle of the abdominal side portion F. And the hook material 9 is less likely to be partially peeled off.

  Although it is preferable to provide a plurality of the easy-bending portions 7 at intervals in the direction intersecting with the continuous direction, only one can be provided. Although the thickness and interval of the easy-bending part 7 can be determined as appropriate, in a normal case, the thickness 7w of the easy-bending part 7 in the direction orthogonal to the continuous direction of the easy-bending part 7 is about 0 to 5 mm. Preferably, the interval 7d in the direction orthogonal to the continuous direction of the easy-bending portion 7 is 1 to 10 mm, particularly 3 to 5 mm. The thickness 7w of the easily bendable portion 7 may be constant in the continuous direction or may change. Moreover, although it is preferable that the easy bending part 7 is extended linearly, you may extend curvedly. In the case where a plurality of the easy-folding portions 7 are provided, the thickness 7w and the interval 7d of all the easy-folding portions 7 can be the same or different.

  The inclination angle of the easy-bending portion 7 may be appropriately determined according to the protruding lengths of the connecting protrusions 51 and 52, but in the normal case, the acute-side crossing angle θ with respect to the width direction (the easy-bending portion 7 is curved). If the crossing angle with the tangential line is 30 to 60 degrees, the easy-bending portion 7 tends to be close to the width direction when the cross is stopped. In the case where a plurality of the easy bending portions 7 are provided, the inclination angles of all the easy bending portions 7 may be the same (parallel) or different.

  As shown in FIG. 12, the connecting region 5c of the waist-side connecting protrusion 51 and the connecting region 5c of the connecting protrusion 52 on the leg-around side extend along the width direction in addition to the easily bendable portion 7 in the oblique direction. It is also a preferable form to have a continuous easy-folding portion 7. Even when the connecting protrusions 51 and 52 are connected to the ventral portion F in a posture substantially along the width direction without cross-stopping by having such an easy-bending portion 7 continuous along the width direction, The follow-up deformability in the front-rear direction of the connection region 5c is improved. However, if the easy-bending portion 7 extends in various directions, the rigidity of the connection region 5c is lowered, so that it may be difficult to fix the front target tape 6 to some users. Therefore, as shown in the figure, the easy-to-bend portion 7 that continues obliquely upward, the easy-fold portion 7 that continues diagonally downward, and the easy-fold portion 7 along the direction other than the easy-fold portion 7 that continues along the width direction. It is also preferable not to have it.

  The easily bendable portion 7 is a portion where the connecting region 5c is easily bent. For example, as shown in FIG. 7, the easily bendable portion 7 can be a portion where a separating portion 9d where the hook material 9 is separated into a plurality of portions is located. In this case, the plurality of hook members 9 are arranged in the direction orthogonal to the continuous direction of the easy-bending portion 7 with a gap or no gap, and as shown in FIG. It becomes the easy bending part 7. It is preferable that the easily bent portion 7 is such a separating portion 9d of the hook material 9 because of excellent followability.

  As shown in FIG. 13, the easy-bending portion 7 can be a portion where the thin-walled portion 9 t formed in the hook material 9 is located. In this case, since it is not necessary to divide the hook material 9 finely, there is an advantage that manufacture is easy. In the form shown in FIG. 13 (a), a thin portion 9t is formed by making a cut ct into the base portion 9b of the hook material 9 from one surface to the middle in the thickness direction, as shown in FIG. 13 (b). In this embodiment, the thin portion 9t is formed by cutting ct at substantially the same position from both sides with respect to the base portion 9b of the hook material 9. In the form shown in FIG. 13C, the thin portion 9t is formed by forming a groove eb that is recessed from one surface to the middle in the thickness direction on the base portion 9b of the hook material 9 by embossing. In the form shown in FIG. 13D, a thin portion 9t is formed by forming grooves eb recessed from both sides in the base portion 9b of the hook material 9 at the same position by embossing. In the form shown in FIG. 13 (e), the base portion 9b of the hook material 9 has a two-layer structure, and the layer 9b1 on the side having the pins 9p is separated into a plurality of portions. It is a form.

  On the other hand, it is preferable to manufacture the connecting protrusions 51 and 52 provided with the easily bendable portion 7 by the separating portion 9d described above, because the manufacturing becomes easy. That is, as shown in FIG. 14A, first, the hook material 9 is attached to the base material 8 on which the connecting protrusions 51 and 52 are formed. And after sticking to the base material 8, only the hook material 9 is continuously cut | disconnected in a predetermined direction, without cutting the base material 8. FIG. As a result, a separating portion 9d is formed. Thereafter, as shown in FIG. 14B, the base material 8 and the hook material 9 are pulled in a direction intersecting the cutting direction of the hook material 9, and the base material 8 is By extending and separating the hook material 9 at the cutting position, it is possible to manufacture the connecting protrusions 51 and 52 including the connecting region 5c having the plurality of hook materials 9 separated by the separating portion 9d.

FIG. 15A is an example of a form in which the separation part 9d is formed by cutting along an oblique direction, and it is assumed that the easy-bending part 7 having the form shown in FIG.
FIG. 15B is an example of a form in which the separating portion 9d is formed by cutting along the oblique direction and the width direction, and it is assumed that the easily bent portion 7 having the form shown in FIG.
FIG. 15C shows an example of a form in which the separation portion 9d is formed by cutting along the width direction.

  In this case, it is preferable to use a sheet made of a material having excellent stretchability, such as unstretched polypropylene (CPP) or low density polyethylene (LDPE), as the substrate.

  Although not shown, the hook material 9 is not cut after being attached to the base material 8, but an easy tear line continuous in a predetermined direction is formed on the hook material 9 before or after being attached to the base material 8. Then, the hook material 9 can be divided into a plurality of portions by an easy tear line by subsequent stretching. The easy tear line is a portion that is easier to tear than other portions, and means a cut that does not extend through the perforation or the entire thickness direction.

  The present invention can be used for a tape-type disposable diaper as in the above example.

  DESCRIPTION OF SYMBOLS 1 ... Liquid impervious sheet, 2 ... Top sheet, 3 ... Absorber, 4 ... Side part barrier sheet, 5 ... Connection panel, 5c ... Connection area, 5e ... Main-body part, 51, 52 ... Projection part for connection, 52 ... Leg connecting side protrusion 51. Waist side connecting protrusion 6. Target tape 7. Easy folding part 9 d Separating part 9 t Thin part 8 Base material 9 Hook material DESCRIPTION OF SYMBOLS 10 ... Perforation, 12 ... Exterior sheet | seat, 20 ... Elastic elastic member, F ... Abdominal side part, B ... Back side part.

Claims (6)

Having a crotch portion, a ventral portion and a dorsal portion extending respectively to the front side and the rear side of the crotch portion,
Connection protrusions are provided at the waist side and leg periphery side portions of each side portion of the back side portion, or the waist side connection protrusion portions and the leg periphery side at each side portion of the back side portion. Are provided in an integrated state through the perforation,
In a tape-type disposable diaper in which a connection region having a hook material that is detachably connected to the abdomen part is provided on the connection protrusion on the waist side and the connection protrusion on the side around the leg,
The connection region of the waist-side connection protrusion has an easy-bending portion that continues obliquely upward toward the tip side,
The connecting region of the connecting protrusions on the side around the legs has an easily bent portion that continues obliquely downward toward the tip side.
A tape-type disposable diaper characterized by that.   2. The tape-type disposable diaper according to claim 1, wherein the easy-to-bend portion that is obliquely upward and the easy-to-bend portion that is obliquely downward is an acute angle crossing angle with respect to the width direction of 30 to 60 degrees.   The connecting region of the connecting protrusion on the waist side and the connecting region of the connecting protrusion on the side around the leg have an easily bent portion that continues along the width direction, and the easily bent portion that continues obliquely upward. The tape-type disposable diaper according to claim 1 or 2, wherein the tape-type disposable diaper does not have an easy-bending portion that extends in a direction other than the easy-bending portion that continues obliquely downward and an easy-bending portion that continues in the width direction.   The tape-type disposable diaper according to any one of claims 1 to 3, wherein the easy-bending portion is a portion where a separation portion where the hook material is separated into a plurality of portions is located.   The tape-type disposable diaper according to any one of claims 1 to 3, wherein the easily bent portion is a portion where a thin portion formed in the hook material is located. Having a crotch portion, a ventral portion and a dorsal portion extending respectively to the front side and the rear side of the crotch portion,
Connection protrusions are provided at the waist side and leg periphery side portions of each side portion of the back side portion, or the waist side connection protrusion portions and the leg periphery side at each side portion of the back side portion. Are provided in an integrated state through the perforation,
In the method for manufacturing a tape-type disposable diaper, wherein the connecting protrusion is provided with a connecting region having a hook material that is detachably connected to the ventral part.
In manufacturing the connecting protrusion,
Affixing the hook material to the base material that forms the connecting protrusion,
After attaching the hook material to the base material, the hook material is continuously cut in a predetermined direction without cutting the base material, or before or after the hook material is attached to the base material. To form an easy tear line continuous in a predetermined direction,
Thereafter, the base material and the hook material are pulled in a direction intersecting with the direction of cutting the hook material or the direction of the easy tear line, the base material is stretched and the hook material is separated at the position of the cutting position or the easy tear line, Producing a connecting protrusion having a connecting region having a plurality of hook materials separated by a separating portion;
A method for producing a tape-type disposable diaper characterized by the above.

Images