JP2012075567A - Absorptive article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a physiological pain by inhibiting reduction in area of the skin contact surface side where a heating element generates heat, and warming the uterus of a wearer efficiently.SOLUTION: This absorptive article 1 includes a liquid permeable surface sheet 11, a liquid impermeable back sheet 12 and an absorber 2 disposed between the surface sheet 11 and the back sheet 12, wherein heating elements 3A, 3B are disposed between the surface sheet 11 and the back sheet 12, the heating elements 3A, 3B have fiber aggregates 60A, 60B obtained by aggregating a number of fibers and heating materials 50A, 50B, and the heating materials 50A, 50B are supported on the fiber aggregates 60A, 60B.

Description

  The present invention relates to an absorbent article.

  Patent Document 1 discloses an absorbent article having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet. An absorbent article is disclosed in which a heating element layer is provided between the sheet and the back sheet.

CN101273938A

  However, the applicant has found that the above-described absorbent article has the following problems. Specifically, in the above-described absorbent article, the heating material of the heating element layer is unevenly distributed in a specific direction (for example, downward) due to vibration caused by the movement of the wearer. As a result, the area on the skin contact surface side where the heat generating element generates heat is reduced, and there is a problem that the wearer's uterus cannot be efficiently heated.

  Therefore, the present invention has been made in view of the above-described problems, and suppresses the reduction of the area on the skin contact surface side where the heating element generates heat, and efficiently warms the wearer's uterus. It aims at providing the absorbent article which can reduce pain.

  The first feature of the present invention is an absorbent article, which is a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet. A heating element is disposed between the top sheet and the back sheet, and the heating element has a fiber assembly in which a large number of fibers are aggregated and a heating material. However, the gist is that the heat generating material is supported on the fibers of the fiber assembly.

  As described above, according to the present invention, it is possible to suppress the reduction of the area on the skin contact surface side where the heating element generates heat, and efficiently warm the wearer's uterus to reduce menstrual pain. The absorbent article which can be provided can be provided.

FIG. 1 is a plan view seen from the skin contact surface side of the absorbent article according to the first embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line aa of the absorbent article according to the first embodiment of the present invention as seen from the skin contact surface side. FIG. 3 is a view for explaining a heating element of the absorbent article according to the first embodiment of the present invention. Drawing 4 is a figure for explaining the state where the absorptive article concerning a 1st embodiment of the present invention was worn on underwear. Drawing 5 is a figure for explaining the state where the absorptive article concerning a 1st embodiment of the present invention was worn on underwear. (A) FIG. 6A is a view for explaining a heating element of an absorbent article according to the prior art. (B) FIG.6 (b) is a figure for demonstrating the heat generating body of the absorbent article which concerns on the 1st Embodiment of this invention.

(First embodiment of the present invention)
With reference to FIG. 1 thru | or FIG. 5, the absorbent article 1 which concerns on the 1st Embodiment of this invention is demonstrated. For example, the absorbent article 1 according to the present embodiment is a panty liner, an incontinence pad, a sanitary napkin, or the like.

  The top view seen from the skin contact surface side of the absorbent article which concerns on FIG. 1 at the 1st Embodiment of this invention is shown, and the skin of the absorbent article which concerns on the 1st Embodiment of this invention in FIG. The aa sectional view in the top view seen from the contact surface side is shown.

  As shown in FIG. 2, the absorbent article 1 according to this embodiment is disposed between a liquid-permeable top sheet 11, a liquid-impermeable back sheet 12, and the top sheet 11 and the back sheet 12. The absorber 2 is provided.

  In the absorbent article 1 according to this embodiment, a second sheet may be disposed between the top sheet 11 and the absorbent body 2.

  The absorbent body 2 is constituted by pulverized pulp and a superabsorbent polymer and a core wrap that wraps both. Here, the superabsorbent polymer is a granular polymer of a cross-linked sodium polyacrylate, or a granular polymer obtained by partially neutralizing polyacrylic acid with sodium.

  A core wrap is a sheet of any material that absorbs liquid. For example, a tissue may be used as the core wrap, or an air laid sheet in which hydrophilic fibers or pulverized pulp is formed into a sheet shape by the air laid method may be used.

  Moreover, as shown in FIG. 1, the absorbent article 1 according to the present embodiment may be provided with a plurality of compressed grooves 21, 22, and 23. Here, the pressing grooves 21, 22, and 23 are configured to squeeze from the top sheet 11 to the absorber 2.

  Moreover, the absorbent article 1 which concerns on this embodiment has a pair of wing part 41 currently formed so that it may extend to the both outer sides of the width direction W of the absorbent article 1, as shown in FIG. It may be. Furthermore, the absorbent article 1 according to the present embodiment may have a pair of hip flap parts 42 behind the wing part 41 in the longitudinal direction L of the absorbent article 1.

  Here, in the wing part 41 and the hip flap part 42, an adhesive for fixing the absorbent article 1 to the underwear is applied to the clothes contact surface side of the back sheet 12.

  Moreover, in the absorbent article 1 which concerns on this embodiment, as shown in FIG.1 and FIG.2, it absorbs more than the area | region where the absorber 2 is provided between the surface sheet 11 and the back surface sheet 12. As shown in FIG. Heating elements 3A and 3B are arranged outside the longitudinal direction L of the article 1.

  Further, as shown in FIGS. 1 and 2, the heating elements 3A and 3B according to the present embodiment include fiber assemblies 60A and 60B in which a large number of fibers are aggregated and heating materials 50A and 50B.

  Here, FIG. 3 shows an enlarged view of the heating element 3A. Since the heating elements 3A and 3B are the same, the structure of the heating element 3A will be described below. Similarly, regarding the heat generating members 50A and 50B and the fiber assemblies 60A and 60B, the structures of the heat generating member 50A and the fiber assemblies 60A will be described. As shown in FIG. 3, in the heating element 3A according to the present embodiment, the heating material 50A is carried on the fibers of the fiber assembly 60A.

  Examples of the heat generating material 50A include those used in known disposable warmers, and a composite powder containing iron powder, activated carbon, sodium chloride, and the like can be used.

  The heating material 50A is supported on the fibers of the fiber assembly 60A by a binder. As the binder, EVA (ethylene / vinyl acetate copolymer) or HMA (hot melt adhesive) can be used. In addition, as a rubber system, SBR (styrene butadiene rubber), BR (butadiene rubber), NBR (butadiene acrylonitrile rubber), or the like can be used.

  The fiber assembly 60A is formed by collecting a large number of fibers, but may be formed of a nonwoven fabric, a knitted fabric, a woven fabric, or the like. As a nonwoven fabric, what was manufactured by methods, such as a needle punch, a spun bond, a point bond, and a spun lace, can be used. As fibers constituting the nonwoven fabric, natural fibers or recycled fibers having high fiber strength may be used in order to secure a predetermined interval between the fibers. Moreover, as another fiber which comprises a nonwoven fabric, synthetic fibers, such as nylon, polyethylene, a polypropylene, polyester, etc. with high fiber strength can also be used. A tricot knitting etc. can be used for a knitted fabric.

  The sheet that wraps the heating elements 3A and 3B is preferably a sheet that has air permeability and prevents the powder from leaking out. For example, a moisture-permeable film, a melt-blown nonwoven fabric, or the like is preferably used.

  In the absorbent article 1 according to the present embodiment, the heating elements 3A and 3B are arranged on the front side and the rear side in the longitudinal direction L of the absorbent article 1 relative to the region where the absorbent body 2 is provided. Alternatively, the heating element 3A may be arranged only on the front side in the longitudinal direction L of the absorbent article 1 relative to the region where the absorber 1 is provided.

  Further, the periphery of the absorbent article 1 is joined with an adhesive or a seal to form a seal portion 24, and the heating elements 3A and 3B and the absorbent body 2 are also joined with an adhesive or a seal, Seal portions 25A and 25B are formed. The seal portions 25A and 25B can prevent the steam generated from the excrement and moisture absorbed by the absorber 2 from being directly warmed by the heating elements 3A and 3B.

  Further, in the region where the heating elements 3A and 3B are provided, an adhesive for fixing the absorbent article 1 to the undergarment may be applied to the clothing contact surface side of the back sheet 12.

  4 and 5 show a state in which the absorbent article 1 according to this embodiment is worn on the underwear 100. FIG.

  When the wearer wears the absorbent article 1 on the underwear 100, the wing part 41 is wound around the crotch of the underwear, the hip flap part 42 is spread on the underwear 100, and the absorbent article 1 is fixed to the underwear 100. .

  As shown in FIG. 4, the heating elements 3 </ b> A and 3 </ b> B may be configured to be fixed to the inner surface of the underwear 100 in a state where the absorbent article 1 according to this embodiment is worn on the underwear 100. .

  Further, as shown in FIG. 5, the heating elements 3 </ b> A and 3 </ b> B are configured to be fixed to the outer surface of the underwear 100 in a state where the absorbent article 1 according to this embodiment is worn on the underwear 100. Also good.

  According to the absorbent article 1 according to the present embodiment, the heat generating members 50A and 50B of the heat generating elements 3A and 3B are prevented from being unevenly distributed in a specific place. This will be specifically described with reference to FIGS. 6 (a) and 6 (b). Fig.6 (a) is a figure which shows the mode of the heat generating body at the time of wearing the absorbent article which concerns on a prior art to the underwear 100, FIG.6 (b) shows the underwear of the absorbent article 1 which concerns on this embodiment. It is a figure which shows the mode of heat generating body 3A, 3B at the time of wearing to 100. FIG.

  As shown to Fig.6 (a), in the absorbent article which concerns on a prior art, due to a wearer's movement etc., the heat generating material 50A might be unevenly distributed in the downward direction. For this reason, the area on the skin contact surface side where the heating element generates heat has been reduced.

  As shown in FIG. 6B, in the absorbent article 1 according to the present embodiment, since the heat generating material 50A is supported on the fibers of the fiber aggregates 60A and 60B, the movement of the heat generating material 50A is suppressed. That is, the uneven distribution of the heat generating material 50A can be suppressed.

  Thus, according to the absorbent article 1 according to the present embodiment, due to the uneven distribution of the heat generating material 50A, the area on the skin contact surface side where the heat generating elements 3A and 3B generate heat is reduced, The wearer's uterus can be efficiently warmed to reduce menstrual pain.

  Moreover, according to the absorbent article 1 which concerns on this embodiment, since the fiber assemblies 60A and 60B suppress uneven distribution of the heat generating materials 50A and 50B, a part of the absorbent article 1 is caused by the uneven distribution of the heat generating materials 50A and 50B. Can be prevented from protruding, and discomfort to the wearer can be prevented.

  Moreover, according to the absorbent article 1 which concerns on this embodiment, since it is comprised so that heat generating body 3A, 3B may not be arrange | positioned in the area | region in which the absorber 1 is provided, the absorber which absorbed the bodily fluid is used. The wearer's uterus can be warmed and menstrual pain can be reduced without causing stuffiness on the skin of the wearer and the surface of the topsheet 11 due to warming.

  Moreover, according to the absorbent article 1 which concerns on this embodiment, since heat generating body 3A, 3B is united with the absorbent article 1, when a wearer becomes 3 A, 3B heating element 3A, 3B has become no longer warm. It can be noticed that it is time to replace the absorbent article 1.

  Although the present invention has been described in detail using the above-described embodiments, it is obvious to those skilled in the art that the present invention is not limited to the embodiments described in this specification. The present invention can be implemented as modified and changed modes without departing from the spirit and scope of the present invention defined by the description of the scope of claims. Therefore, the description of the present specification is for illustrative purposes and does not have any limiting meaning to the present invention.

DESCRIPTION OF SYMBOLS 1 ... Absorbent article 2 ... Absorber 3A, 3B ... Heat generating body 11 ... Top sheet 12 ... Back sheet 21, 22, 23 ... Squeeze groove 41 ... Wing part 42 ... Hip flap part 50A, 50B ... Heat generating material 60A, 60B ... Fiber assembly

Claims (3)

An absorbent article having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet,
A heating element is disposed between the top sheet and the back sheet,
The heating element has a fiber assembly in which a large number of fibers are assembled and a heating material,
The absorbent article, wherein the heat generating material is carried on a fiber of the fiber assembly.   The heating element is disposed between the top sheet and the back sheet and outside the region in which the absorbent article is provided in the longitudinal direction of the absorbent article. Item 10. An absorbent article according to Item 1.   The absorption according to claim 2, wherein a seal portion is formed between the absorber and the heating element to join the liquid-permeable top sheet and the liquid-impermeable back sheet. Sex goods.

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