JPH055117U - Absorbent article - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an absorbent article which is easy to operate and can be surely prevented from slipping while wearing by eliminating the need for release paper. The absorbent article 1 of the present invention comprises a liquid-permeable surface material 2, a liquid-impermeable leak preventive material 3, and an absorbent body arranged between the surface material 2 and the leak preventive material 3. 4 is provided on the surface of the back side of the absorbent article, and adhesive sections 6 and 7 are provided on the front side and the rear side of the absorbent article in the longitudinal direction, respectively. The parts 6 and 7 include pressure-sensitive adhesive parts 6a and 7a coated with a pressure-sensitive adhesive and release agent parts 6b and 7b that can be peeled from the pressure-sensitive adhesive, and the absorbent article has the front part and the rear part. Are arranged so that when they are folded in four so as to face each other, the adhesive portions 6a and 7a of one adhesive portion are covered with the release agent portions 6b and 7b of the other adhesive portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to a liquid-permeable surface material, a liquid-impermeable leakproof material, and these surface materials and Absorbent article having an absorber disposed between the leaking material, particularly sanitary napkin, etc. The absorbent article of.

[0002]

[Prior art]

  In this type of absorbent article, for example, sanitary napkins, An adhesive is provided on the back side, that is, on the side of the leakproof material, and when wearing it, the side of the leakproof material such as shorts It is known to be bonded to underwear to prevent the sanitary napkin from slipping in the wearer. It

[0003]   With such a sanitary napkin, when not in use, cover the surface of the adhesive with release tape. Keep it covered and peel off the release tape to expose the adhesive surface when using It is like this.   For example, in the sanitary napkin disclosed in Japanese Utility Model Publication No. 57-160721. As shown in FIG. 5, the sanitary napkin is folded in four and the sanitary napkin The front adhesive 12 and the rear adhesive 13 are butted against each other to form the adhesive 1 A configuration in which a release paper 14 is interposed between 2 and 13 is disclosed. This conventional sanitary When not in use on a napkin, use both the front adhesive 12 and the rear adhesive 13 Only one sheet of release paper 14 covers the adhesive.

[0004]   In addition, in Japanese Utility Model Publication No. 59-9616, as shown in FIG. 6 (FIG. 1 of the publication). , Place the adhesive 12 on the front part (or rear part) of the sanitary napkin, and Is disclosed in which the release agent 15 is arranged in the front part). In addition, in FIG. Shows a structure in which a release agent is provided on the surface of the surface material, but a release agent or the like is provided on the surface material side. If placed, it will impair the function as a surface material, that is, the function of absorbing body fluids, A release agent or the like cannot be placed on the surface material side.

[0005]

[Problems to be solved by the device]

  However, in the former conventional technology, one adhesive tape is used to remove two adhesives. Minimal stripping tape to coat and use, but strips anyway Disposal such as discarding the peeling tape after peeling it off because tape is required Is troublesome.

[0006]   On the other hand, in the latter prior art, a structure without peeling tape is used. Therefore, it is not necessary to dispose of the release tape when using it, and the manufacturing process Although there is an advantage that it becomes simpler, part of the sanitary napkin (for example, the front part) ) Can only place the adhesive. That is, only the release agent can be placed in the rear part Therefore, the sanitary napkin cannot be adhered to both the front part and the rear part, and There is a problem that it is impossible to prevent the slippage of the working napkin.

[0007]   Therefore, the purpose of the present invention is to improve the operation during use by eliminating the need for release tape. Absorbent material that is easy to manufacture, can reliably prevent slippage during wearing, and is easy to manufacture It is to provide goods.

[0008]

[Means for Solving the Problems]

  The present invention relates to a liquid-permeable surface material, a liquid-impermeable leakproof material, and these surface materials and In an absorbent article having an absorbent body arranged between the leakage material, Adhesive on the front and back of the absorbent article on the back side in the longitudinal direction Parts are provided, and each of the adhesive parts includes an adhesive part coated with an adhesive and an adhesive surface. The absorbent article is provided with a release agent portion that covers the surface and is removable with respect to the adhesive. It was folded in four so that the adhesive part on the front part and each adhesive part on the rear part face each other. At this time, one adhesive part should be placed so that the other release agent part covers it. The above object is achieved by providing an absorbent article characterized by It

[0009]

[Action]

  In use, the absorbent article according to the present invention is folded and adhered to each other. Adhesive part of the front part and the adhesive part of the rear part, which are separated from each other, to develop the absorbent article, Exposing each adhesive part where the front part and the rear part are arranged and adhering it to shorts etc. It

[0010]   When mounting such an absorbent article, one adhesive part should be the other release agent part. Since it is a covering structure, it does not require release paper, so the mounting operation is simple, Moreover, it securely adheres to underwear such as shorts on both the front and back to ensure Misalignment is prevented.   When manufacturing such absorbent articles, the step of placing release paper can be omitted. The number of processes is reduced.

[0011]

【Example】

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.   1 to 3, a sanitary napkin 1 as an absorbent article according to the present invention is shown. Is a liquid-permeable surface material 2, a liquid-impermeable leak preventer 3, and these surface materials 2 and leak preventers. The absorbent body 4 disposed between the absorbent body 3 and the material 3, and the surface of the back side of the absorbent article is Adhesive portions 6 and 7 are provided on the front and rear portions of the absorbent article in the longitudinal direction. And each of the adhesive portions 6 and 7 includes an adhesive portion 6a and 7a coated with an adhesive, Adhesive surface 6a, 7b that covers the surface of the adhesive and is peelable from the adhesive is adjacent to The sanitary napkin 1, the front and rear adhesive parts face each other. When it is folded in four so as to be It is located so as to correspond to b and 7b and to be covered.

[0012]   In addition, the width of the sanitary napkin 1 at the position closer to the front than the center in the longitudinal direction is the width of the sanitary napkin 1. A pair of wings 8 and 8 extending outward in the opposite direction are provided. Adhesive portions 8a and 8a are provided in the center of each of the Wings are formed on the surface of the leak preventer 3 in correspondence with the positions where the adhesive portions 8a, 8a are arranged. The stripping agent 8b is arranged in a strip shape.

[0013]   Furthermore, the shape of the sanitary napkin 1 is formed in a rectangular shape as a whole, The surface material 2 and the leakage preventive material 3 are welded and joined at the peripheral edge portion. With the adhesive section 6 on the front The rear adhesive portion 7 is separated from the front end portion and the rear end portion by about 1/4 of the whole. It is placed in the table.   The surface material 2 is a liquid-permeable sheet that allows excrement to permeate into the absorbent body 4 and is close to underwear. Those having a feeling of touch are preferable, and examples of such a liquid-permeable sheet include woven fabrics. Cloth, non-woven fabric, porous film and the like are preferable. In addition, the peripheral portion of the surface material 2 is made of silicon. The method of applying hydrophobic compounds such as oil-based oils and paraffin wax By applying a hydrophilic compound such as phosphoric acid ester and washing the periphery with warm water, Water-repellent treatment is applied to prevent leakage due to bleeding of urine etc. around the periphery. It

[0014]   The leak preventive material 3 is a liquid impermeable and vapor permeable material that is obtained by adding a filler to a thermoplastic resin and stretching it. A vapor permeable sheet to be used is used, which has a feeling similar to underwear, for example , Composite material of film and non-woven fabric, or composite material of film and woven fabric To be   As the absorbent body 4, the main material is defibrated pulp and a high-molecular water-absorbing polymer is also used. In addition, thermoplastic resin, cellulose fiber, high-molecular water-absorbing polymer It is preferable that the mixture is heat-treated. The location of the high-molecular water-absorbing polymer is It may be an upper layer, a middle layer or a lower layer, or may be a mixture with pulp. Yes. The high-molecular water-absorbing polymer is a storage material capable of absorbing and holding 20 times or more of its own weight of liquid. It is preferable to use particles that have a long-lasting ability and have the property of gelling. As the water-absorbing polymer, starch-acrylic acid (salt) graft copolymer, depolymer Saponified product of sodium-acrylonitrile copolymer, sodium carboxymethylcetone A cross-linked product of lulose and an acrylic acid (salt) polymer are preferable. As for the shape, The shape of the hourglass according to the body shape of the user is preferable, but it may be rectangular.

[0015]   The adhesive part 6 on the front part is an adhesive on the front part in the longitudinal direction of the sanitary napkin 1. The portion 6a is formed in a quadrangular shape, and the rear side of the adhesive portion 6a is adjacent to it. Then, the release agent portion 6b is formed in the same rectangular shape as the pressure sensitive adhesive portion 6a. It Similarly, the adhesive portion 7 at the rear portion has a substantially same size of the adhesive portion corresponding to the adhesive portion 6 at the front portion. Adhesive portion 7a and release agent portion 7b are formed.

[0016]   The positions of the pressure sensitive adhesive portions 6a and 7a and the pressure sensitive adhesive portions 6b and 7b are the same as those of the pressure sensitive adhesive portions 6 and 7, respectively. When the two face each other, the adhesive portion 6a is attached to the release agent portion 7b and the adhesive portion 7a is attached to the release agent portion 7b. The release agent portion 6b is simultaneously coated.   As the pressure-sensitive adhesive, rubber type, ethylene-vinyl acetate copolymer (EVA) type, ole Whatever can be used for ordinary absorbent articles such as fins and acrylics Although it does not matter, a rubber-based hot melt adhesive is preferably used.

[0017]   As the release agent, silicone resin type, fluororesin type, long-chain alkylate type, etc. may be used. A release agent based on silicone resin is preferably used.   Adhesive portions 8a, 8a for wings and wheels provided on the wings 8,8 For the release agent portion 8b for sealing, the same adhesive and release agent as described above are used. I have been. Further, the shape of the release agent portion 8b for the wing is the same as the width of the wing 8. The strips are provided with a substantially uniform width so as to cross the sanitary napkin 1.

[0018]   When the sanitary napkin 1 is not in use, as shown in FIG. The surface materials 2 face each other at the first folded portion 9 at the substantially central portion in the longitudinal direction. It is folded inward as shown in the figure. The second folding part 10 is folded to the surface material 2 side, and as a result, the front part is adhered. The portion 6 and the rear adhesive portion 7 are arranged so as to face each other. That is, all It is folded in four as a body.

[0019]   In this state, the pressure-sensitive adhesive portion 6a on the front portion is changed to the release agent portion 7b on the rear portion, and the pressure-sensitive adhesive portion on the rear portion is The portion 7a is simultaneously coated on the front stripper part 6b.   On the other hand, the wings 8 and 8 have their adhesive portions 8a and 8a, respectively, peeling agent portions 8b. Fold it toward and stick it in place. At this time, as described above, the release agent portion 8 b is located at an arbitrary position because it is arranged across the wide range across the leak preventer 3. A release agent can be coated.

[0020]   Next, the operation of this embodiment will be described.   Before wearing the sanitary napkin 1, fold it in four as shown in FIGS. 2 and 3. It is in a state of being put on, and when worn, it is unfolded so that the adhesive part 6 on the front part and the rear part And the adhesive part 7 of each part are separated from each other. At this time, the pressure-sensitive adhesive portion 6a on the front part is a release agent. The adhesive portion 7a is peeled off from the portion 7b with respect to the peeling agent portion 6b.

[0021]   Further, peel off the adhesive portion 8a of the wings 8, 8 from the release agent portion 8b, and Expand Ing 8, 8.   In this way, after the sanitary napkin 1 is deployed as shown in FIG. The surface material 2 side of the pukin 1 is directly applied to the excretion point, and at the same time, the leak preventive material 3 side is adhered. The parts 6, 7 and the wings 8 are adhered to underwear (not shown) such as shorts.

[0022]   In this case, the sanitary napkin has two parts, the front adhesive part 6 and the rear adhesive part 7. Since the adhesive is securely attached in some places, the sanitary napkin 1 is displaced relative to the wearer's movement. Is reliably prevented.   And when wearing, since the release paper is not used for the sanitary napkin 1, No need to dispose of the release paper, and the mounting operation is easy.

[0023]   Further, since the step of disposing the release paper is not necessary when manufacturing the sanitary napkin 1. It is possible to reduce the number of processes and the number of parts.   The present invention is not limited to the above-described embodiments, and does not depart from the gist of the present invention. Various modifications can be made in the enclosure.   For example, in the above-described embodiment, the configuration in which the wings are arranged is not limited to this. Alternatively, as shown in FIG. 4, the wings may not be provided.

[0024]   In addition, each adhesive part has a configuration in which one adhesive part and a release agent part are provided. However, the configuration is not limited to this, and two or three may be arranged.   Furthermore, each adhesive part and release agent part need not be arranged adjacent to each other in the longitudinal direction. Alternatively, they may be arranged at intervals in the longitudinal direction or adjacent in the width direction. . In this case, the adhesive part and the release agent part in the corresponding other adhesive part are also the same. Will be placed.

[0025]

[Effect of device]

  The absorbent article of the present invention simplifies operation during use by eliminating the need for release paper. In addition, it is possible to reliably prevent the slippage during wearing, and it is easy to manufacture.

[Brief description of drawings]

FIG. 1 is a development view of a sanitary napkin according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a folded state of the sanitary napkin shown in FIG.

FIG. 3 is a front view of the sanitary napkin shown in FIG.

FIG. 4 is a perspective view of a sanitary napkin according to another embodiment of the present invention.

FIG. 5 is a side view showing a conventional sanitary napkin.

FIG. 6 is a side view showing another conventional sanitary napkin.

[Explanation of symbols]

1 sanitary napkin 2 surface material 3 Leak prevention material 6, 7 Adhesive part 6a, 7a Adhesive part 6b, 7b Release agent part

Claims (2)

[Scope of utility model registration request] 1. An absorbent article having a liquid-permeable surface material, a liquid-impermeable leak preventive material, and an absorber disposed between the surface material and the leak preventive material. The back surface of the absorbent article is provided with an adhesive portion on each of the front portion and the rear portion in the longitudinal direction of the absorbent article, and each adhesive portion is an adhesive portion coated with an adhesive. When the absorbent article is provided with a release agent portion that covers the surface of the adhesive and is removable from the adhesive, and the absorbent article is folded in four so that the front adhesive portion and the rear adhesive portion face each other. In the absorbent article, one pressure-sensitive adhesive portion is arranged so as to be covered with the other release agent portion. 2. The absorbent article is provided with a pair of wings extending outward in the width direction thereof, an adhesive portion is provided on a part of each wing, and the leakproof material is provided with the wing. The absorbent article according to claim 1, further comprising a release agent that covers the adhesive when the sheet is folded.