JP5566615B2 - Absorbent articles - Google Patents

Description

  The present invention relates to an absorbent article used for disposable diapers, sanitary napkins, panty liners, incontinence pads and the like.

  As a conventional absorbent article, Patent Document 1 discloses a sanitary napkin having a strip. The strip is provided between the top sheet and the back sheet that sandwich the absorbent body, and one end of the strip is exposed and serves as a grip portion, and the other end is fixed between the top sheet and the back sheet. ing.

  In this sanitary napkin, the napkin is held with one hand after use, while the other hand holds the strip gripping part and pulls the strip. Thereby, the whole is folded in a bellows shape while the strip is exposed from the napkin. Then, the strip is wound around the outer periphery of the napkin to keep the bellows-like form, and is discarded in this state.

JP 2007-202790 A

  However, in the conventional sanitary napkin, when the napkin is folded for disposal, the surface sheet portion to which the dirt is attached may be touched, which is not hygienic.

  Then, this invention aims at providing the absorbent article which can be folded without a hand touching an absorber and can perform a hygienic handling.

  The first feature of the present invention is that the absorbent article (sanitary napkin 1) includes a liquid-permeable top sheet (top sheet 2), a liquid-impermeable back sheet (back sheet 3), and a top sheet. An absorbent article having an absorbent body (absorbent body 4) that is interposed between the back sheet and can absorb body fluid, and is located on both sides in the width direction (width direction W) of the absorbent article. An insertion hole (insertion hole 7) extending along the longitudinal direction (longitudinal direction L) from the front end side (front end side Fr) of the article toward the rear end side (rear end side Ba) of the absorbent article is formed, and the inside of the insertion hole A long member (long member 6) that is inserted into the opening, and the insertion hole has an opening (opening 8) located on the front end side of the absorbent article and a fixed part located on the rear end side of the absorbent article (Fixed portion 12) is formed, and the long member is a long portion (long portion 11) inserted through the insertion hole. The rear end portion of the long portion located on the rear end side of the absorbent article has a lead-out portion (drawer portion 9) connected to the long portion and drawn out of the insertion hole from the opening. This is the gist.

  According to this invention, the elongate part of an elongate member is provided in the both sides in the width direction of an absorbent article, and the rear-end part of an elongate part is being fixed. As a result, when the drawer portion of the long member inserted through the insertion hole is pulled by hand, the absorbent article is rolled while the top sheet is on the inside and the back sheet is on the outside. Since the surface sheet is rolled inward, the hand does not contact the absorbent body and can be handled in a sanitary manner.

  A second feature of the present invention relates to the first feature of the present invention, and is summarized in that the insertion holes are formed on both sides in the width direction of the absorbent body between the top sheet and the back sheet.

  A third feature of the present invention relates to the first or second feature of the present invention, wherein a side sheet (side sheet 5) is joined to at least a part of the left and right sides of the surface sheet, and the insertion hole is formed by the side sheet. And the back sheet.

A fourth feature of the present invention relates to any one of the first to third features of the present invention, wherein the long member is formed of a single string body, and the string body is folded back on the rear end side of the absorbent article. Both ends of the string body are pulled out from the opening at the front end side of the absorbent article. The fifth feature of the present invention is that the absorbent article (the sanitary napkin 1) is a liquid-permeable topsheet ( Absorbent article having a top sheet 2), a liquid-impermeable back sheet (back sheet 3), and an absorber (absorber 4) that is interposed between the top sheet and the back sheet and can absorb body fluid. And it is arrange | positioned at the both sides in the width direction (width direction W) of an absorbent article, and the longitudinal direction (rear end side Ba) which goes to the rear end side (rear end side Ba) of the absorbent article from the front end side (front end side Fr) of an absorbent article ( An insertion hole (insertion hole 7) extending along the longitudinal direction L) is formed and inserted into the insertion hole. It has a long member (11 long member 6), and the insertion hole has an opening (opening 8) located on the rear end side of the absorbent article and a fixing part (fixing part) located on the front end side of the absorbent article 12) is formed, and the long member includes a long portion (long portion 11) that is inserted into the insertion hole, and a drawer portion (drawer) that is connected to the long portion and is drawn out of the insertion hole from the opening portion. The front end portion of the long portion located on the front end side of the absorbent article is fixed to the fixing portion.

  According to this invention, the elongate part of an elongate member is provided in the both sides in the width direction of an absorbent article, and the rear-end part of an elongate part is being fixed. As a result, when the drawer portion of the long member inserted through the insertion hole is pulled by hand, the absorbent article is rolled while the top sheet is on the inside and the back sheet is on the outside. Since the surface sheet is rolled inward, the hand does not contact the absorbent body and can be handled in a sanitary manner.

FIG. 1 is a plan view showing a state in which the sanitary napkin according to the first embodiment of the present invention is developed. 2 is a cross-sectional view taken along line AA in FIG. FIG. 3 is a perspective view showing a form of disposal. FIG. 4 is a plan view showing a state in which the sanitary napkin of another embodiment according to the first embodiment of the present invention is developed. FIG. 5 is a cross-sectional view showing another embodiment according to the first embodiment of the present invention.

(First embodiment)
FIG. 1 is a plan view showing a developed state of the sanitary napkin 1 according to the first embodiment of the present invention. 2 is a cross-sectional view taken along line AA in FIG. FIG. 3 is a perspective view showing a discarded state. The absorbent article according to the present embodiment constitutes a sanitary napkin 1. The sanitary napkin 1 includes a top sheet 2, a back sheet 3, an absorbent body 4 interposed between the top sheet 2 and the back sheet 3, a side sheet 5, and a long member 6.

  The top sheet 2 is disposed on the skin contact surface side. The top sheet 2 is formed of a liquid permeable material. As the surface sheet 2, a porous or non-porous nonwoven fabric, a porous plastic sheet, or the like can be used. Since the surface sheet 2 is subjected to heat embossing and the like symmetrically from the skin contact surface side, the basis weight and density differ depending on the location.

  Specifically, locations with different basis weights and densities are alternately formed along the longitudinal direction L from the front end side Fr of the sanitary napkin 1 to the rear end side Ba of the sanitary napkin 1.

  The absorber 4 absorbs body fluid such as menstrual blood that has passed through the top sheet 2. The absorbent body 4 is formed of fluffy pulp, an airlaid nonwoven fabric and a superabsorbent polymer.

  As the fluffy pulp, chemical pulp, cellulose fiber, or artificial cellulose fiber such as rayon or acetate can be used.

  As the superabsorbent polymer, starch-based, acrylic acid-based, amino acid-based particulate polymer or fibrous polymer can be used.

  An airlaid nonwoven fabric is a nonwoven fabric in which pulp and synthetic fibers are bonded by heat fusion or a binder. As the air laid nonwoven fabric, nonwoven fabrics such as spun lace, spun bond, thermal bond, melt blown, needle punch, air through and the like can be used. As the material fiber constituting the nonwoven fabric, synthetic fibers such as olefins such as polyethylene or polypropylene, polyesters, and polyamides can be used. Not limited to this, regenerated fibers such as rayon and cupra, and natural fibers such as cotton can be used.

  The back sheet 3 is a clothing contact surface such as shorts. The back sheet 3 is formed of a liquid permeable material. As the back sheet 3, a polyolefin film such as polyethylene or polypropylene, or a resin film such as polystyrene or polyurethane can be used. A porous (moisture permeable) polyolefin sheet in which inorganic particles such as calcium carbonate and barium sulfate are dispersed, a laminated nonwoven fabric (hereinafter referred to as SMS) nonwoven fabric manufactured by a spunbond method / melt blow method / spunbond method, and an SMMS nonwoven fabric are used. be able to. These can be used alone or as a mixture, and can also be used in a laminated state. A wing 3a that extends in the left-right direction is formed at an intermediate portion in the longitudinal direction L of the back sheet 3. The wing 3a is provided with an adhesive as a locking member. With this adhesive, the sanitary napkin 1 can be attached to clothing.

  The side sheet 5 is joined to at least a part of the left and right sides of the top sheet 2. Specifically, the side sheets 5 are arranged along the longitudinal direction L on both sides in the width direction W of the absorbent body 4. The side sheet 5 is partially bonded on the top sheet 2. The side sheet 5 rises from the top sheet 2 when the sanitary napkin 1 is used. Thereby, the side seat | sheet 5 acts so that the side leakage of a bodily fluid may be prevented. As the side sheet 5, a hydrophobic or water-repellent nonwoven fabric can be used. In this case, a stretched elastic member may be disposed on the side seat 5. Thereby, the standup | rising property from the surface sheet 2 can be hold | maintained reliably.

Insertion holes 7 that are located on both sides in the width direction W of the sanitary napkin 1 and extend linearly along the longitudinal direction L from the front end side Fr of the sanitary napkin 1 toward the rear end side Ba of the sanitary napkin 1 are formed. The The insertion hole 7 is formed by the top sheet 2 and the side sheet 5. 7
In the insertion hole 7 in the longitudinal direction L, an opening 8 located on the front end side Fr of the sanitary napkin 1 is formed. In this case, the insertion holes 7 are provided on both sides in the width direction of the absorber 4.

  The insertion hole 7 is formed with a fixing portion 12 located on the rear end side Ba of the sanitary napkin 1.

  In this embodiment, the insertion hole 7 is provided between the side sheet 5 and the top sheet 2. Not only this but the insertion hole 7 may be formed in the both sides in the width direction W of the absorber 4 between the surface sheet 2 and the back surface sheet 3. FIG. This structure has an advantage that the insertion hole 7 can be easily formed.

  In addition, as shown in FIG. 2, when the side sheet 5 is folded toward the absorber 4, the insertion hole 7 may be disposed between the upper and lower side sheets 5.

  The long member 6 is inserted into the insertion hole 7. The long member 6 includes a long portion 11 that is inserted into the insertion hole 7 and a lead portion 9 that is connected to the long portion 11 and is drawn out of the insertion hole 7 from the opening 8. The long portion 11 is disposed along the longitudinal direction L on both sides in the width direction W of the sanitary napkin 1. Each long portion 11 is inserted through the insertion hole 7. The rear end side (the lower end side in FIG. 1) in the longitudinal direction of each long portion 11 is fixed to the sanitary napkin 1. Further, the front end side in the longitudinal direction of each of the long portions 11 becomes a lead-out portion 9 by being pulled out from the opening portion 8 of the insertion hole 7.

  The long member 6 can be a string-like member having a diameter of 1 to 7 mm, preferably 2 to 5 mm, which does not have elasticity. When the length of the long member 6 is less than 1 mm, when the long member 6 is pulled, the long member 6 bites into the finger and hurts the finger. When the thickness of the long member 6 exceeds 7 mm, the area of most of the insertion hole 7 is filled, so that the usability is deteriorated. When a string-like member is used as the long member 6, a hydrophobic treatment, preferably a water repellent treatment, is performed so that menstrual blood is not transmitted. As the material of the long member 6, synthetic fibers such as olefins such as polyethylene and polypropylene, polyesters and polyamides, recycled fibers such as rayon and cupra, and natural fibers such as cotton can be used.

  In each long part 11 of the long member 6, the length of the drawing part 9 drawn from the opening part 8 of the insertion hole 7 is set to 30 to 200 mm, preferably 40 to 150 mm. When the length of the lead-out portion 9 is less than 30 mm, the long portion 11 stays in the shorts or the sanitary napkin 1, so that the long portion 11 becomes dirty due to menstrual blood and is not hygienic. Moreover, it becomes difficult to grip the long portion 11 drawn out of the insertion hole 7 from the opening 8 when the sanitary napkin 1 is discarded. When the length of the lead-out portion 9 exceeds 200 mm, the lead-out portion 9 becomes entangled outside the sanitary napkin 1 and cannot be used at the time of disposal.

  In FIG. 1, the fixing portion 12 fixes the rear end portion side of the long portion 11. The fixing portion 12 is formed by adhering from the skin contact surface side of the side sheet 5 with heat embossing or a heat-sensitive adhesive (HMA). When using hot embossing, the area of the embossing is set so that the width direction W is a length obtained by adding a length of 5 mm or less to the thickness of the long portion 11, and the longitudinal direction L is a length of 1 to 10 mm. Is done. The fixing portion 12 is provided at a position of 1 to 10 mm from the end of the sanitary napkin 1.

  The fixing strength of the long portion 11 of the long member 11 with respect to the fixing portion 12 is set to be greater than the rigidity in the longitudinal direction L of the sanitary napkin 1. The taper rigidity in the longitudinal direction L of the sanitary napkin 1 is set in the range of 50 to 90 mg, preferably 60 to 80 mg. When the taper rigidity is less than 50 mg, the sanitary napkin 1 itself is softer than necessary, and the sanitary napkin 1 is used during use. When the Taber stiffness exceeds 90 mg, the sanitary napkin 1 is hard and does not conform to the body, and the feeling of use deteriorates. As described above, the fixing strength of the long portion 11 with respect to the fixing portion 12 is set to about 100 mg.

  The sanitary napkin 1 has a topsheet 2 and an absorbent body 4 as shown in FIG. 3 by grasping the pulling portions 9 of the left and right long members 6 and pulling the long portions 11 out of the insertion holes 7 from the openings 8. Is rounded with the back side 3 facing outside.

  This is partly due to the fact that when the sanitary napkin 1 is used, the use surface side composed of the topsheet 2 and the absorber 4 is curved so as to wrap around the body. Moreover, when the surface sheet 2 side of the absorber 4 and the back sheet 3 side of the absorber 4 are compared, the basis weight (weight) and density of the surface sheet 2 side of the absorber 4 vary depending on the location. Another factor is that the material is rounded starting from a point where the density is different.

  Specifically, because the basis weight and the places where the density differs are alternately formed along the longitudinal direction L from the front end side Fr of the sanitary napkin 1 to the rear end side Ba of the sanitary napkin 1, The place where the basis weight or density is low is the starting point.

  Furthermore, since the place where the basis weight and the density are small is formed symmetrically, a fold along the width direction W of the sanitary napkin 1 is likely to be formed at the place where the basis weight and the density are low. Therefore, it becomes easy to be rounded by making the surface sheet 2 and the absorber 4 inside from this fold as the starting point.

  Thus, since it rolls up with the surface sheet 2 and the absorber 4 inside, it can handle hygienically without touching the menstrual blood adhering to these. It is also possible to confine the odor. Further, after the sanitary napkin 1 is rolled, the original unfolded state is not obtained, and the rounded sanitary napkin 1 can be discarded as it is. In addition, in this embodiment, the curvature of the sanitary napkin 1 can be changed by pulling the drawer 9. By changing the curvature of the sanitary napkin 1, the fit to the body is improved and the leakage of body fluid can be reduced.

  In addition, you may attach an adhesive tape or a cotton fastener tape to each drawer | drawing-out part 9 of the elongate member 6. FIG. Thereby, since the drawer | drawing-out part 9 can be fixed to the appropriate location of the sanitary napkin 1, the external appearance of the sanitary napkin 1 is also improved.

(Other embodiment 1)
FIG. 4 shows another embodiment according to the first embodiment of the present invention, and the same members as those in the above-described embodiment are denoted by the same reference numerals.

  In this embodiment, the long member 6 is formed of a single string. The string body is folded back at the rear end Ba of the sanitary napkin 1, and both ends of the string body are respectively pulled out from the pull-out opening at the front end side Fr of the sanitary napkin 1. The long member 6 made of a single string is folded back on the rear end side in the longitudinal direction L (folded portion 13). The long member 6 (long portion 11) extends linearly from both sides in the width direction of the folded portion 13 along the longitudinal direction. And the elongate member 6 is fixed to the fixing | fixed part 12 of the folding | returning part 13 vicinity with respect to the sanitary napkin 1. FIG. Both end portions of the string body, which are the front end sides in the longitudinal direction L of the long member 6, are drawn out from the openings 8 of the insertion holes 7. Similar to the above-described embodiment, the sanitary napkin 1 can be rolled up with the top sheet 2 and the absorbent body 4 on the inside and the back sheet 3 on the outside by pulling the drawer end.

(Other embodiment 2)
FIG. 5 shows another embodiment according to the first embodiment of the present invention, and the same members as those in the above-described embodiment are denoted by the same reference numerals.

  In this embodiment, the inside of the gathered portion 16 in which the elastic member 17 is disposed on the side seat 15 is used as the insertion hole 7. As described above, by using the inside of the gathered portion 16 as the insertion hole 7, it is not necessary to provide the sanitary napkin 1 with the insertion hole 7 for inserting the long member 6.

  In the above-described embodiment, the opening 8 of the insertion hole 7 is formed on the front end side Fr of the sanitary napkin 1 and the fixing portion 12 is formed on the rear end side Ba. Alternatively, an opening 8 and a fixing portion 12 located on the front end side may be formed on the rear end side Ba of the sanitary napkin 1. In this case, the front end portion of the long member 6 located on the front end side Fr is fixed to the fixing portion 12, and has a lead-out portion 9 connected to the long portion 11 and drawn out of the insertion hole 7 from the opening 8.

Ba ... rear end side, Fr ... front end side, L ... longitudinal direction, W ... width direction, 1 ... sanitary napkin, 2 ... surface sheet, 3 ... back sheet, 3a ... wing, 4 ... absorber, 5 ... side sheet , 6 ... long member, 7 ... insertion hole, 8 ... opening, 9 ... drawer part, 11 ... long part, 12 ... fixing part, 13 ... folding part, 15 ... side sheet, 16 ... gather part, 17 ... Elastic member

Claims (2)

An absorbent article having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body interposed between the top sheet and the back sheet and capable of absorbing bodily fluids,
Insertion holes extending along the longitudinal direction from the front end side of the absorbent article to the rear end side of the absorbent article are formed on both sides in the width direction of the absorbent article,
Inserted into the insertion hole, and has a long member formed of a single string,
In the insertion hole,
A pair of openings that are located on the front end side of the absorbent article, each not facing;
A fixing portion located on the rear end side of the absorbent article is formed,
The long member is
A long portion that is inserted into the insertion hole and is folded at the rear end side of the absorbent article;
Continuing to the elongated portion, both ends have a leading portion that is each pulled out of the insertion hole from the opening on the front end side of the absorbent article,
The rear end portion of the elongated portion located on the rear end side of the absorbent article is fixed to the fixing portion ,
Overlaid side sheets are joined to at least a part of the left and right sides of the top sheet,
An elastic member is provided between the stacked side sheets,
The said insertion hole is an absorbent article provided between the said side sheet and the said surface sheet which were piled up . An absorbent article having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body interposed between the top sheet and the back sheet and capable of absorbing bodily fluids,
Insertion holes extending along the longitudinal direction from the front end side of the absorbent article to the rear end side of the absorbent article are formed on both sides in the width direction of the absorbent article,
Inserted into the insertion hole, and has a long member formed of a single string,
In the insertion hole,
A pair of openings that are located on the rear end side of the absorbent article and are not facing each other;
A fixing portion located on the front end side of the absorbent article is formed,
The long member is
A long portion that is inserted into the insertion hole and is folded at the front end side of the absorbent article;
Continuing to the elongated portion, both ends have a drawing portion that is drawn out of the insertion hole from the opening to the outside of the insertion hole from the opening on the rear end side of the absorbent article,
The front end portion of the elongated portion located on the front end side of the absorbent article is fixed to the fixing portion ,
Overlaid side sheets are joined to at least a part of the left and right sides of the top sheet,
An elastic member is provided between the stacked side sheets,
The said insertion hole is an absorbent article provided between the said side sheet and the said surface sheet which were piled up .

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