JP2019076597A - Absorbent auxiliary pad - Google Patents

Abstract

To provide an absorbent article at low cost which has excellent wear feeling and can appropriately prevent leakage of loose passage.SOLUTION: An absorbent auxiliary pad 1 has prescribed three-dimensional gathers 50 only on one end part in a width direction. A top sheet 20 has a folded shape at a side end part in a width direction that is not provided with the three-dimensional gathers 50 in the way that a part of an absorber 40 and a part of a back sheet 30 are enfolded. The back sheet 30 has a folded shape at the side end part in the width direction provided with the three-dimensional gathers 50 inside the width direction of the three-dimensional gathers 50 in the way that a part of the absorber 40 is enfolded at a position on the clothes side of the top sheet 20. A high absorbent sheet 410 to be used for the absorber 40 has: a substrate nonwoven fabric 411 whose one side surface is raised; and high absorbent polymer 412 fixed and supported between fibers at the raised part of the substrate nonwoven fabric 411.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a low-cost absorbent auxiliary pad that has a good wearing feel and can appropriately prevent loose stool leakage.

  In general, adult paper diapers include a taping type, a pants type, and the like, and these disposable diapers are appropriately selected and used according to the degree of need for care in the excretion of the user. These absorbent articles are composed of a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber disposed between the two sheets. By adopting such a configuration, body fluid such as urine passes through the top sheet of the absorbent article and is absorbed by the absorbent body, so that it does not leak to the outside by the back sheet.

  By the way, although absorbent articles, such as a taping type and a pants type paper diaper, may be used alone or in combination with a urine absorbing pad on the inside, it is currently used in combination with a urine absorbing pad. In most cases, the urine absorbing pad is used by being stacked on the top sheet. This is because the cost per disposable diaper is high, and it is necessary to replace only the urine absorbing pad after absorbing and holding excrement with a urine absorbing pad which is cheaper than a taped type or underpants type disposable diaper. Therefore, even after excretion, it is not necessary to replace the more expensive taping-type disposable diapers and pants-type disposable diapers, and the absorbent article can be used at economically low cost.

  Here, the urine absorbing pad has various sizes and shapes according to the urine volume, and can reliably absorb excreted urine to prevent leakage. However, for soft stools, watery stools, diarrheal stools (hereinafter referred to as soft stools), the absorbability is insufficient and the soft stools may leak to the outside of the urine absorbing pad and the absorbent article. Urine collecting pads intended to prevent leakage are also being studied.

  As a urine absorption pad for the purpose of preventing leakage of soft stool, for example, Patent Document 1 discloses a pad type disposable diaper provided with a top sheet, a back sheet, an absorbent body, a solid gather, at least in the crotch region. A pad type characterized in that a cup portion recessed in a cup shape as viewed from the garment side surface is provided in a portion extending laterally from the projecting portion of the solid gather within a range behind the front end. A disposable diaper is disclosed.

JP, 2014-45980, A

  However, even in the urine absorption pad described in Patent Document 1, when a large amount of soft stool is excreted, the soft stool leaks from the leaky portion of the urine absorption pad to an absorbent article such as a taping type paper diaper, and further There was a possibility that loose stools could leak into clothes and bedding from absorbent articles. Moreover, although the urine absorption pad is used supplementary to absorbent articles, such as a taping type paper diaper, since it is going to prevent the leak of a loose stool in a wide area, since a size becomes inevitably large. However, the cost of raw materials has increased, and there has also been a problem that the user has not been fully satisfactory in cost.

  In addition, in order to prevent leakage of a large amount of soft feces, when using a conventional general absorber combining fluff pulp and a super absorbent polymer (also referred to as Super Absorbent Polymer, SAP) as an absorber, Inevitably, the absorber tends to be thick, and even the wearing feeling was not sufficiently satisfactory. In addition, the highly absorbent polymer has a high density even when a so-called highly absorbent sheet (also referred to as an SAP sheet) composed of a non-woven fabric as a substrate and a highly absorbent polymer is used as an absorber for the purpose of thinning. There is a problem that the touch becomes hard and the feeling of wearing decreases by being present in the

  Therefore, the present invention has been made in view of the problems described above, and it is an object of the present invention to provide a low-cost absorbent article having a good wearing feeling and capable of appropriately preventing leakage of soft stools. Do.

  The inventors of the present invention conducted intensive studies in view of the above problems. As a result, only one side end in the width direction has a predetermined solid gather, and the top sheet and the back sheet have a predetermined folded shape, and further, the absorber has a predetermined high-absorbent sheet. It has been found that the above-mentioned problems can be solved by the absorbent auxiliary pad, and the present invention has been completed. Specifically, the present invention provides the following.

(1) A first aspect of the present invention includes a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber disposed between the top sheet and the back sheet. An absorbent auxiliary pad disposed at an end portion of an absorbent article, wherein the absorbent auxiliary pad has water repellency or liquid impermeability only at one side end in the width direction of the absorbent auxiliary pad. Having a solid gather composed of double sheets, and the top sheet is configured to wrap the part of the absorber and the part of the back sheet at the side edge in the width direction not provided with the solid gather The back sheet is a side end portion in the width direction including the solid gather, and a portion of the absorber is the top in the width direction inner side than the solid gather. Clothes side of the sheet The absorbent body has a highly absorbent sheet and a hydrophilic sheet which wraps the whole of the highly absorbent sheet, and the highly absorbent sheet has one side, The compression energy WC by the handy compression tester KES-G5 of the absorbent body, comprising: a base non-woven fabric having a raised surface; and a superabsorbent polymer fixedly supported between fibers of the raised part of the base non-woven fabric. Is 2.0 gf · cm / cm ² or more and 8.0 gf · cm / cm ² or less, compression recovery RC is 35% or more and 65% or less, and the height from the body-side surface of the top sheet of the solid gather is The absorbent auxiliary pad having a thickness of 20% or more with respect to the dimension of the absorbent auxiliary pad in the width direction, and the clothes side surface of the back sheet is provided with a fixing means with the absorbent article. It is.

  (2) A second aspect of the present invention is the absorbent auxiliary pad according to (1), characterized in that the dimensions in the longitudinal direction and the width direction are 50 mm or more and 300 mm or less.

(3) A third aspect of the present invention is the absorbent auxiliary pad according to (1) or (2), wherein the substrate nonwoven fabric is an air through nonwoven fabric, and the basis weight of the substrate nonwoven fabric is 20 g / m. ² or more and 200 g / m ² or less, the thickness of the base non-woven fabric is 0.3 mm or more and 11.0 mm or less, and the thickness of fibers constituting the base non-woven fabric is 1.6 dtex or more and 14 dtex or less It is said that.

(4) A fourth aspect of the present invention is the absorbent auxiliary pad according to any one of (1) to (3), wherein the superabsorbent polymer has a basis weight of 200 g / m ^{2 to} 1200 g / m ^2. It is characterized by being ² or less.

(5) A fifth aspect of the present invention is the absorbent auxiliary pad according to any one of (1) to (4), wherein the hydrophilic sheet has a basis weight of 7 g / m ² or more and 45 g / m ² It is characterized by being a hydrophilic nonwoven fabric of ² or less.

(6) A sixth aspect of the present invention is the absorbent auxiliary pad according to any one of (1) to (5), wherein the superabsorbent polymer is a non-woven fabric of the base non-woven fabric by a hot melt adhesive. It is characterized in that it is fixedly supported between the fibers of the raised portion, and the content of the hot melt adhesive is 10 g / m ² or less.

  (7) A seventh aspect of the present invention is the absorbent auxiliary pad according to any one of (1) to (6), wherein the height of the solid gather from the body side surface of the top sheet is It is characterized by being 15 mm or more and 80 mm or less.

  (8) The eighth aspect of the present invention is the absorbent auxiliary pad according to any one of (1) to (7), wherein the solid gathers at least one each on the free end side and the proximal end side. And a stretchable elastic member.

  The absorbent auxiliary pad according to the present invention has a solid gather of a predetermined height formed of a double sheet having water repellency or liquid impermeability only at one side end in the width direction of the absorbent auxiliary pad. Have. For this reason, the absorbent auxiliary pad is disposed at the end of the absorbent article such as a taping type paper diaper so that the three-dimensional gathers are in the outer peripheral direction of the absorbent article, thereby absorbing the absorbent auxiliary pad. Leakage of soft stool can be effectively prevented while maintaining the sex. In addition, the top sheet has a shape that is folded back so as to wrap a part of the absorber and a part of the back sheet at the side end in the width direction that does not include the solid gather. For this reason, the soft stool which has been transferred from the top sheet of the absorbent article can be absorbed not only from the body side surface of the absorbent auxiliary pad but also from the side end portion not equipped with the solid gathers, more efficiently. It can absorb loose stools. Furthermore, the back sheet is folded at the side end in the width direction provided with the solid gather, and in the width direction inner side of the solid gather, so that a part of the absorber is wound at the position on the clothing side of the top sheet. It has the following shape. For this reason, it can be effectively prevented that the soft stool transferred to the absorber leaks to the outside of the absorbent auxiliary pad and the absorbent article.

  Moreover, the base nonwoven fabric in which the single-sided surface was raised is used for the highly absorbent sheet used for the absorber of an absorptive auxiliary pad. For this reason, in addition to the bulkiness intrinsic | native to a nonwoven fabric, by providing moderate thickness and softness, moderate cushioning property generate | occur | produces and the fit at the time of wear can be improved. In addition, the superabsorbent polymer is dispersed and fixedly supported between the fibers of the raised portion of the base nonwoven fabric, whereby soft stool is appropriately diffused or held in the base nonwoven fabric around the superabsorbent polymer, and the absorption performance is also improved. be able to. In addition, since the absorber does not contain fluff pulp, it can be made thin. Therefore, the absorbability and the feeling of wearing can be improved.

  In addition, since the absorbent auxiliary pad of the present invention can be used locally for the leaky portion of the absorbent article, the size can be reduced as compared to conventional absorbent auxiliary pads. For this reason, raw material cost can be held down, and a low cost absorbent auxiliary pad can be provided. As described above, according to the present invention, it is possible to provide a low-cost absorbent auxiliary pad that has a good wearing feel and can appropriately prevent the leakage of soft stool.

It is a top view of the absorptive auxiliary pad of the present invention. It is X ₁ -X ₁ cross-sectional view of FIG. It is drawing which shows the usage example of the absorptive auxiliary pad of this invention.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the attached drawings. The same elements are denoted by the same reference symbols throughout the description of the embodiments of the present invention.

  In the description of the present specification, the wearing of the absorbent auxiliary pad 1 refers to at least one of the wearing of the absorbent auxiliary pad 1 and after the wearing. The longitudinal direction of the absorbent auxiliary pad 1 is a direction parallel to a solid gather 50 described later, and is a direction indicated by a symbol Y in the drawing. Further, the width direction of the absorbent auxiliary pad 1 is a direction transverse or perpendicular to the longitudinal direction, and is a direction indicated by a symbol X in the drawing. Furthermore, the body side surface is a surface disposed on the skin side of the wearer at the time of wearing, of both the front and back sides of each member such as the absorber 40, and the clothing side surface is a surface of each member such as the absorber 40 or the like. It is a surface which is turned to the side opposite to a wearer's skin side at the time of wearing among front and back both sides.

<Absorbent Auxiliary Pad>
FIG. 1 is a plan view of the absorbent auxiliary pad 1 of the present invention, FIG. 2 is a sectional view taken along the line X ₁ -X ₁ in FIG. 1, and FIG. 3 is a drawing showing an example of use of the absorbent auxiliary pad 1 of the present invention. As shown in FIGS. 1 and 2, the absorbent auxiliary pad 1 is an absorbent disposed between the liquid-permeable top sheet 20, the liquid-impermeable back sheet 30, and the top sheet 20 and the back sheet 30. It has a body 40 and one side end in the width direction of the absorbent auxiliary pad 1 and has a solid gather 50 described later, and is disposed at an end of an absorbent article 100 such as a taping type paper diaper. It is a thing. The absorbent auxiliary pad 1 is suitable for use in combination with the absorbent article 100 for infants or adults. As shown in FIG. 3, by arranging the absorbent auxiliary pad 1 at the end of the absorbent article 100 so that the three-dimensional gather 50 is in the outer peripheral direction of the absorbent article 100, the soft stool leakage is effectively achieved. Can be prevented.

  The shape of the absorbent auxiliary pad 1 is not particularly limited. However, since the absorbent auxiliary pad 1 is disposed at the end of the absorbent article 100 to effectively prevent the leakage of soft stool, it is substantially rectangular or substantially rectangular. It is preferably square. Moreover, it is preferable that it is 50 to 300 mm, and, as for the dimension of the longitudinal direction of the absorptive auxiliary pad 1, and the width direction, it is more preferable that it is 100 to 250 mm. The absorbent auxiliary pad 1 is adapted to the type and size of the absorbent article 100 to which the absorbent auxiliary pad 1 is fixed by setting the dimensions in the longitudinal direction and the width direction of the absorbent auxiliary pad 1 in the above range. It is possible to reduce costs if necessary.

[Top sheet]
The top sheet 20 allows body fluid to pass quickly toward the absorber 40, and is disposed to face the back sheet 30 with the absorber 40 interposed therebetween. The top sheet 20 is a sheet that comes in contact with the skin, so a base material that does not stimulate the skin with a soft touch, for example, a nonwoven fabric such as a thermal bond nonwoven fabric represented by an air through nonwoven fabric, thermal bond / span It is formed of a material such as a composite non-woven fabric in which bonds are laminated, an apertured film such as an apertured polyethylene film, a foamed film such as polyethylene foam and urethane foam, or a composite sheet in which these are laminated. The top sheet 20 may be a single layer or a plurality of layers, and a large number of through holes may be formed in order to provide dry touch properties.

As the non-woven fabric, synthetic fibers such as polypropylene and polyethylene, regenerated fibers such as rayon, and natural fibers such as cotton are obtained by known processing methods such as spun lace method and spun bond method besides thermal bonding method. One can also be used. The basis weight of the top sheet 20 is preferably 15 g / m ² or more and 200 g / m ² or less in terms of processability and strength. A lotion, an antioxidant, an anti-inflammatory component, a pH adjuster, an antibacterial agent, a moisturizing agent or the like may be applied to the top sheet 20 in order to reduce skin irritation. The shape of the top sheet 20 is not particularly limited, but is preferably substantially rectangular or substantially square in accordance with the shape of the absorbent auxiliary pad 1.

  In the present invention, the top sheet 20 has a shape that is folded back so as to wrap a part of the absorber 40 and a part of the back sheet 30 at the side end in the width direction not provided with the solid gather 50. There is. With the top sheet 20 having such a folded shape, the soft stool transferred from on the top sheet of the absorbent article 100 is not provided with the solid gathers 50 as well as the body side surface of the absorbent auxiliary pad 1. It can also be absorbed from the side edge and can absorb soft stool more efficiently.

[Back sheet]
The back sheet 30 is liquid impervious so as to prevent the body fluid from leaking to the outside of the absorbent auxiliary pad 1, and a sheet material having water impermeability is used, but it has moisture permeability to prevent leakage. It is also good. As a material of the back sheet 30 which has such a characteristic, thin plastic sheets, such as a polyethylene sheet and a polyethylene lamination nonwoven fabric, can be mentioned, for example. The shape of the back sheet 30 is not particularly limited, but is preferably substantially rectangular or substantially square according to the shape of the absorbent auxiliary pad 1.

  In the present invention, the back sheet 30 is a side end in the width direction provided with the solid gathers 50, and a portion of the absorber 40 on the garment side of the top sheet 20 in the width direction inner than the solid gathers 50. It has a shape that is folded back so as to be rolled up. With the back sheet 30 having such a folded shape, it is possible to effectively prevent the loose stool transferred to the absorbent body 40 from leaking to the outside of the absorbent auxiliary pad 1 and the absorbent article 100.

(Fixing means)
In the absorbent auxiliary pad 1, fixing means 31 for fixing the absorbent auxiliary pad 1 to the absorbent article 100 is formed on the garment side surface of the back sheet 30. Although it does not specifically limit as a base material of the fixing means 31, A mechanical hook tape, an adhesive tape, an adhesive can be used. Moreover, you may have the peeling sheet for protecting the fixing means 31, and this peeling sheet may be united with the packaging sheet of the absorptive auxiliary pad 1. FIG.

[Absorber]
As shown in FIG. 2, the absorbent body 40 has a superabsorbent sheet 410 and a hydrophilic sheet 420 which wraps the entire superabsorbent sheet 410. In addition, since the absorber 40 does not contain fluff pulp, the thickness of the absorptive auxiliary | assistant pad 1 is thin, and can improve a wearing feeling. The thickness of the absorber 40 is preferably 1.0 mm or more and 12.0 mm or less, and more preferably 4.0 mm or more and 9.0 mm or less so that the wearing feeling is not impaired.

(High absorbency sheet)
As shown in FIG. 2, the superabsorbent sheet 410 used for the absorbent body 40 has a base non-woven fabric 411 with a raised surface on one side and a super-absorbent polymer 412 fixedly supported between fibers of the raised part of the base non-woven fabric 411. And. The superabsorbent polymer 412 is dispersed and fixedly supported between the fibers of the raised portion of the base nonwoven fabric 411, whereby soft stool is appropriately diffused or held in the base nonwoven fabric 411 around the superabsorbent polymer 412 and absorbed. The performance is improved, and sufficient absorption performance can be ensured without having fluff pulp.

(Base non-woven fabric)
As shown in FIG. 2, one surface of the base nonwoven fabric 411 is in a raised state. Therefore, in addition to the bulkiness inherent to the non-woven fabric, by providing the superabsorbent sheet 410 with an appropriate thickness and softness, an appropriate cushioning property is generated, and a fit when worn can be improved. Further, by raising the base nonwoven fabric 411 as described above, the superabsorbent polymer 412 can be dispersed and fixedly supported between the fibers of the raised part of the base nonwoven fabric 411. As a method of raising the surface on one side of the base nonwoven fabric 411, a rotary saw blade and a needle punch may be mentioned, and it is preferable to use a method in which the rotary saw blade fluffs from the viewpoint of in-line productivity and cost. The surface on which the base nonwoven fabric 411 is raised may be either the body side or the garment side, but it is preferable to raise the body side because soft stool can be absorbed more effectively.

  Examples of the base non-woven fabric 411 include non-woven fabrics such as air through non-woven fabric, point-bonded non-woven fabric, spun-bonded non-woven fabric, melt-blown non-woven fabric, and spun-bonded non-woven fabric / melt-blown non-woven fabric or composite non-woven fabric laminated with spun-bonded non-woven fabric / melt-blown non-woven fabric / spun bond non-woven fabric. be able to. It is preferable to use the air through nonwoven fabric which is easy to obtain bulkiness among these nonwoven fabrics.

The thickness of the base nonwoven fabric 411 is preferably 0.3 mm or more and 11.0 mm or less, more preferably 2.0 mm or more and 9.0 mm or less, from the viewpoint of the balance between the wearing feeling and the absorption performance. More preferably, it is 0 mm or more and 9.0 mm or less. The basis weight of the base nonwoven fabric 411 is preferably 20 g / m ² or more and 200 g / m ² or less, and more preferably 30 g / m ² or more and 160 g / m ² or less.

  Furthermore, the thickness of the fibers constituting the base nonwoven fabric 411 is preferably 1.6 dtex or more and 14 dtex or less, more preferably 1.8 dtex or more and 9.0 dtex or less, and 2.0 dtex or more and 6.0 dtex or less It is further preferred that Thus, by adjusting the thickness of the fibers constituting the base nonwoven fabric 411 within the above range, the superabsorbent polymer 412 can be dispersed between the fibers of the raised portion of the base nonwoven fabric 411 to facilitate adhesion and support. it can.

(Super absorbent polymer)
The superabsorbent polymer 412 is not particularly limited as long as it absorbs soft stool and prevents backflow, and is a sodium polyacrylate type, polyaspartate type, (starch-acrylic acid) graft copolymer Those formed from materials such as (acrylic acid-vinyl alcohol) copolymer, (isobutylene-maleic anhydride) copolymer and its saponified product can be used. Among these, sodium polyacrylates are preferred from the viewpoint of the amount of absorption per weight. The basis weight of the superabsorbent polymer 412 is preferably 200 g / m ² or more and 1200 g / m ² or less in order to ensure the absorption performance required for various absorbent articles. Further, from the viewpoint of further improving the absorption performance, the feel after absorption, and the movement of the wearer, the basis weight of the superabsorbent polymer 412 is more preferably 300 g / m ² or more and 900 g / m ² or less.

  Also, by avoiding fine powders with poor flowability as powders, the basic performance on absorption is enhanced, and from the viewpoint of reducing the tactile sensation generated by hardening of the superabsorbent sheet 410, the high absorption is achieved. The median particle diameter of the polymer 412 is preferably 50 μm or more and 600 μm or less, and more preferably 100 μm or more and 500 μm or less.

The superabsorbent polymer 412 is preferably adhered and supported between the fibers of the raised portion of the base nonwoven fabric 411 by a hot melt adhesive, and the superabsorbent polymer is used when the base nonwoven fabric 411 has a relatively low basis weight. In order to reinforce the adhesive support of 412, the hot melt adhesive works particularly effectively. In addition, it is preferable that content of a hot-melt-adhesive agent is 10 g / m < ² > or less so that the absorbability of the super-absorbent polymer 412 is not inhibited and the touch at the time of wearing is not impaired. As a hot melt adhesive, synthetic rubbers such as styrene-butadiene-styrene copolymer and styrene-isoprene-styrene copolymer having a melting point of 100 ° C. or more and 180 ° C. or less, or ethylene-vinyl acetate copolymer And olefin based hot melt adhesives can be used. As a method of applying the hot melt adhesive, known methods such as curtain coating, spiral coating, and contact slot coating, which apply a hot melt adhesive in a molten state from a nozzle without contact, can be used.

(Hydrophilic sheet)
The absorbent body 40 has a hydrophilic sheet 420 which wraps the entire superabsorbent sheet 410 as shown in FIG. By wrapping the whole of the superabsorbent sheet 410 with the hydrophilic sheet 420, it is possible to prevent the superabsorbent polymer 412 from leaking out of the absorber 40, and to improve the touch when worn. Examples of the hydrophilic sheet 420 include hydrophilic nonwoven fabrics such as tissue, absorbent paper, spunbond nonwoven fabrics and air-laid nonwoven fabrics. From the viewpoint of availability and cost, it is preferable to use hydrophilic nonwoven fabrics. The basis weight is preferably 7 g / m ² or more and 45 g / m ² or less, and more preferably 8 g / m ² or more and 15 / m ² or less. In addition, when wrapping the whole highly absorbent sheet 410 with the hydrophilic sheet 420, it is preferable to fix the highly absorbent sheet 410 and the hydrophilic sheet 420 by a hot-melt-adhesive agent or heat embossing.

(Compression energy WC and compression recovery RC)
The compression energy WC of the absorber 40 is 2.0 gf · cm / cm ² or more and 8.0 gf · cm / cm ² or less by the handy compression tester KES-G5 (manufactured by Kato Tech Co., Ltd.), 2.4 gf · cm / cm ² or more is preferably 6.6gf · cm / cm ² or less. By adjusting the compression energy WC of the absorber 40 within the above range, a good cushioning property can be obtained. The compression energy WC indicates that the higher the numerical value, the easier it is to be compressed.

  In addition, the compression recoverability RC of the absorber 40 by the handy compression tester KES-G5 is 35% or more and 65% or less, and preferably 40% or more and 58% or less. By adjusting the compression recovery property RC of the absorber 40 to the above range, it is possible to have appropriate elasticity and improve the wearing feeling. In addition, compression recovery property RC (%) shows the elasticity with respect to compression, and it means having the resilience against compression, so that a numerical value is high.

The measurement method of the compression energy WC and compression recoverability RC by the handy compression tester KES-G5 of the absorber 40 is as follows. First, place the sample (10 cm × 10 cm) on the test stand, and press the copper presser with a circular flat area of 2 cm ² from the top of the sample under the conditions of speed 0.01 cm / s and maximum compressive stress 20 gf / cm ² Push and compress. Based on the measured data, the compression energy WC and the compression recoverability RC were calculated by numerical processing.

[3D Gather]
The absorbent auxiliary pad 1 has a solid gather 50 constituted of a double sheet having water repellency or liquid impermeability at only one side end in the width direction of the absorbent auxiliary pad 1. As shown in FIG. 3, by arranging the absorbent auxiliary pad 1 at the end of the absorbent article 100 so that the three-dimensional gather 50 is in the outer peripheral direction of the absorbent article 100, Leakage of soft stool can be effectively prevented while maintaining absorbency.

As the three-dimensional gathers 50, a water-repellent or liquid-impervious sheet formed of hydrophobic fibers, for example, a spunbond non-woven fabric, a melt-blown non-woven fabric, a polyethylene film can be used. A double bond of two sheets is used. The basis weight of the solid gather 50 is preferably 15 g / m ² or more and 100 g / m ² or less in terms of processability and strength. A solid gather 50 composed of double sheets formed in this manner is arranged as shown in FIG. Specifically, the outer sheet of the solid gather 50 is fixed to the back sheet 30, the inner sheet of the solid gather 50 is fixed to the top sheet 20, and the parts not fixed to the top sheet 20 and the back sheet 30 are free ends. Thus, the solid gather 50 is disposed on the absorbent auxiliary pad 1.

  In the present invention, the height from the body side surface of the top sheet 20 of the three-dimensional gather 50 is 20% or more with respect to the dimension in the width direction of the absorbent auxiliary pad 1, assuming that this range is satisfied. It is preferable that they are 15 mm or more and 80 mm or less. When the height of the three-dimensional gather 50 from the top sheet 20 satisfies the above condition, it is possible to effectively prevent the loose stool leakage from the absorbent auxiliary pad 1.

(Elastic elastic member)
Preferably, the solid gather 50 has at least one stretchable elastic member 51 along the longitudinal direction on the free end side and the proximal end side. By providing the stretchable elastic member 51 along the longitudinal direction, the solid gathers 50 have erecting ability and can be deformed according to the wearer's body shape, and by improving the fit, it is possible to effectively leak the soft stool. Can be prevented. As the stretchable elastic member 51, for example, a polyurethane yarn, a strip-like polyurethane film, a thread-like or strip-like natural rubber or the like is used.

  It is preferable that the free end of the solid gatherer 50 be fixed on the top sheet 20 at both end regions of the absorbent auxiliary pad 1 in the longitudinal direction. Therefore, the inner side surface of the solid gatherer 50 is the top It is preferable to be in contact with the body side surface of the sheet 20. Thereby, the solid gathers 50 stand up only in the region except the longitudinal direction both end region.

DESCRIPTION OF SYMBOLS 1 Absorbent auxiliary pad 20 Top sheet 30 Back sheet 31 Fixing means 40 Absorber 410 Super absorbent sheet 411 Base nonwoven fabric 412 Super absorbent polymer 420 Hydrophilic sheet 50 Three-dimensional gathers 51 Elastic elastic member 100 Absorbent article

Claims (8)

An absorbent having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber disposed between the top sheet and the back sheet, the absorbent being disposed at the end of the absorbent article It is an auxiliary pad,
The absorbent auxiliary pad has a solid gather composed of a double sheet having water repellency or liquid impermeability only at one side end in the width direction of the absorbent auxiliary pad,
The top sheet has a shape that is folded back so as to wrap a part of the absorber and a part of the back sheet at the side end in the width direction not provided with a solid gather,
The back sheet is a side end portion in the width direction provided with the solid gather, and in the width direction inner side of the solid gather, a portion of the absorber is wound at a position on the clothing side of the top sheet. , Has a folded shape,
The absorbent has a high absorbent sheet and a hydrophilic sheet which wraps the whole of the high absorbent sheet.
The super-absorbent sheet has a base non-woven fabric having one side surface raised and a super-absorbent polymer fixedly supported between fibers of the raised part of the base non-woven fabric,
The compression energy WC is 2.0 gf · cm / cm ² or more and 8.0 gf · cm / cm ² or less, and the compression recovery RC is 35% or more and 65% or less, by the handy compression tester KES-G5 of the absorber. And
The height of the solid gather from the body-side surface of the top sheet is 20% or more with respect to the widthwise dimension of the absorbent auxiliary pad,
An absorbent auxiliary pad, wherein a fixing means with an absorbent article is formed on the garment side surface of the back sheet.   The absorptive auxiliary | assistant pad of Claim 1 whose dimension of a longitudinal direction and the width direction is 50 mm or more and 300 mm or less. The base non-woven fabric is an air through non-woven fabric, the basis weight of the base non-woven fabric is 20 g / m ² or more and 200 g / m ² or less, the thickness of the base non-woven fabric is 0.3 mm or more and 11.0 mm or less The absorbent auxiliary pad according to claim 1 or 2, wherein the thickness of the fiber constituting the fiber is 1.6 dtex or more and 14 dtex or less. The high basis weight of the absorbent polymer is 200 g / ^{m 2} or more 1200 g / ^{m 2} or less, absorbent auxiliary pad according to any one of claims 1 to 3. The absorptive auxiliary pad according to any one of claims 1 to 4, wherein the hydrophilic sheet is a hydrophilic non-woven fabric having a basis weight of 7 g / m ^{2 to} 45 g / m ² . The high absorption polymer is adhered and supported between fibers of a raised portion of the base non-woven fabric by a hot melt adhesive, and the content of the hot melt adhesive is 10 g / m ² or less. An absorbent auxiliary pad according to any one of 5.   The absorptive auxiliary pad according to any one of claims 1 to 6, wherein the height from the body side surface of the top sheet of the solid gathers is 15 mm or more and 80 mm or less.   The absorptive auxiliary pad according to any one of claims 1 to 7, wherein the solid gathers have at least one stretchable elastic member on the free end side and the proximal end side.