JP4896646B2 - Surface liner and absorbent article - Google Patents

Description

  The present invention relates to a technique of a surface liner that can be attached to the skin side of an absorbent article that absorbs the excrement of a wearer.

  In general, in absorbent articles that absorb excrement such as urine and feces of wearers such as disposable diapers, side solid gathers are formed in order to prevent leakage (lateral leakage) from the left and right ends of excrement. Yes. The side three-dimensional gather is composed of a non-liquid-permeable sheet with a rubber thread sandwiched between ends thereof, and rises from the main body part toward the skin surface side due to the contraction of the rubber thread. With the structure of this side three-dimensional gather, excrement is blocked and side leakage is prevented.

  In order to prevent further side leakage, a disposable diaper has been proposed in which a plurality of ridges extending in the front-rear direction are provided on the skin surface side of the main body. In this disposable diaper, the standing heel is in close contact with the wearer's skin, and side leakage is further prevented (see, for example, Patent Document 1).

JP 2004-181104 A

  Absorbent articles provided with the above-described wrinkles absorb excrement in a wide range of the absorber by diffusing in the front-rear direction while preventing the excrement from spreading in the left-right direction (lateral direction). It improves the absorption efficiency. Such a structure of the absorbent article is effective for excrement mainly composed of liquid components such as urine.

  However, in the case of excreta containing a liquid component such as loose stool and a solid component, the solid component flows together with the liquid component. For this reason, in the structure of the absorbent article, excrement such as loose stool is diffused in the front-rear direction of the absorbent article in a state where the liquid component and the solid component are mixed. Thereafter, although the liquid component is absorbed, the solid component remains on the surface of the absorbent article in a state of spreading in the front-rear direction. For this reason, in the case of replacement | exchange of an absorbent article, the solid component (stool) adhering to a wearer's skin had to be wiped off extensively, and the improvement plan was requested | required.

  This invention is made | formed in view of the said subject, and it aims at providing the technique which can prevent the spreading | diffusion of excrement in an absorbent article.

In order to solve the above-mentioned problem, the invention of claim 1 is a surface liner that can be attached to the skin surface side of an absorbent article that absorbs the excrement of the wearer, and has a sheet shape in which a large number of through holes are dispersed. Ri Na giving uneven distribution of excrement receiving body, is distributed in the excrement receptacle comprises wrinkle formation means for forming a wrinkle in the excrement receptacle, at least a portion the of the uneven distribution The excrement receptacle is given as a distribution of wrinkles, and the excrement receptacle includes a plurality of first tape-like members extending substantially in parallel with each other and a plurality of second tape-like members extending substantially in parallel with being separated from each other. It provided arranged in different directions, that has the through hole is formed by gaps between the tape-like member.

  According to a second aspect of the present invention, in the surface liner of the first aspect, the uneven distribution is an irregular distribution.

  According to a third aspect of the present invention, in the surface liner according to the first or second aspect, the plurality of through holes are distributed substantially periodically in the excrement receptacle.

According to a fourth aspect of the present invention, in the surface liner according to any one of the first to third aspects, the wrinkle forming means is an elastic member that is arranged in a distributed manner on the excrement receptacle and expands and contracts the excrement receptacle. It is.

Further, the invention of claim 5 is the surface liner according to any one of claims 1 to 4 , wherein the excrement receptacle has a substantially rectangular shape, and each of the plurality of first tape-shaped members includes It arrange | positions along the transversal direction of a waste receptacle.

The invention according to claim 6 is the surface liner according to claim 5 , wherein the wrinkle forming means is provided along the plurality of first tape-shaped members, whereby the plurality of first tape-shaped members are arranged. The wrinkles are formed by contracting in the lateral direction.

The invention according to claim 7 is the surface liner according to any one of claims 1 to 5 , wherein the wrinkle forming means is provided on both the plurality of first tape-shaped members and the plurality of second tape-shaped members. Forming said folds.

The invention according to claim 8 is the surface liner according to claim 6 or 7 , wherein the wrinkle forming means is a tape-like elastic member.

The invention according to claim 9 is the surface liner according to any one of claims 1 to 8 , wherein the plurality of first tape-shaped members and the plurality of second tape-shaped members are liquid-permeable tape-shaped nonwoven fabrics. It is.

The invention according to claim 10 is the surface liner according to any one of claims 1 to 8 , wherein the plurality of first tape-shaped members and the plurality of second tape-shaped members are water-repellent tape-shaped nonwoven fabrics. is there.

According to an eleventh aspect of the present invention, in the surface liner according to any one of the first to sixth aspects, the plurality of second tape-shaped members are tape-shaped elastic members.

The invention according to claim 12 is the surface liner according to any one of claims 1 to 11 , wherein any one of the plurality of first tape-shaped members and the plurality of second tape-shaped members is the excretion. It arrange | positions at the main surface by the side of the skin of an object receiver, and the other is arrange | positioned at the main surface by the side of the said absorbent article of the said excrement receiver .

Further, the invention of claim 13 is the surface liner according to any one of claims 1 to 12 , wherein the excrement receptacle includes the plurality of first tape-shaped members and the plurality of second tape-shaped members. It has a woven fabric structure.

The invention of claim 14, the surface liner according to any one of claims 1 to 13, wherein each of the opening areas of the plurality of holes is non-stretched state of the unevenness distribution, 1 mm ² or more 900 mm ² It is as follows.

Further, the invention of claim 15 is the surface liner according to any one of claims 1 to 14 , further comprising a coupling member for surface-bonding with the absorbent article.

The invention according to claim 16 is an absorbent article having an absorber that absorbs the excrement of the wearer, and the surface liner according to any one of claims 1 to 15 on the skin surface side of the absorber. .

The invention according to claim 17 is an absorbent article having an absorber that absorbs the excrement of the wearer, and the surface liner according to any one of claims 5 to 8 on the skin surface side of the absorber. The longitudinal direction of the excrement receptacle of the surface liner is a direction along the front-rear direction of the absorbent article, and the plurality of first tape-shaped members of the surface liner are the excrement It is arranged on the main surface on the skin side of the receiver.

According to an eighteenth aspect of the present invention, in the absorbent article according to the sixteenth or seventeenth aspect , the surface liner is disposed in a portion of the absorbent article that is offset toward the rear side.

The invention according to claim 19 is the absorbent article according to any one of claims 16 to 18 , further comprising a cover sheet covering at least a peripheral region on the skin surface side of the surface liner.
The invention according to claim 20 is the surface liner according to any one of claims 1 to 8, wherein the plurality of first tape-shaped members and the plurality of second tape-shaped members are tape-shaped nonwoven fabrics.

According to invention of Claim 1 thru | or 20 , excrement can be made to retain in an unevenness | corrugation by presence of the uneven distribution in an excretion receptacle body, and the spreading | diffusion of excrement can be prevented. Moreover, since many through-holes are disperse | distributed, absorption efficiency can improve and the flow of excrement can be suppressed and the spreading | diffusion of excrement can further be prevented.
Further, the uneven distribution can be easily formed on the excrement receptacle.
A variety of uneven distribution including through holes can be easily formed on the excrement receiver, and excrement can be retained in the uneven distribution. For this reason, the spread of excrement can be further prevented.

  In particular, according to the invention of claim 2, since the uneven distribution is an irregular distribution, various excreta can be retained.

  In particular, according to the invention of claim 3, the absorption efficiency can be improved uniformly in the excrement receptacle.

In particular, according to the invention of claim 4 , an irregular uneven distribution can be easily formed in the excretion receptacle.

Moreover, according to invention of Claim 5, a 1st tape-shaped member becomes a wall and can suppress the spreading | diffusion of the excrement in the longitudinal direction effectively.

In particular, according to the invention of claim 6 , the substantial thickness of the first tape-shaped member can be increased, and the diffusion of excrement in the longitudinal direction can be further effectively suppressed.

In particular, according to the seventh aspect of the invention, excrement can be prevented from diffusing on the skin surface side, and excrement accumulation and absorption efficiency can be improved on the absorbent article side.

In particular, according to the invention of claim 8 , by using the tape-like elastic member, it is not necessary to sandwich the wrinkle forming means with a non-woven fabric, so that necessary materials can be reduced.

In particular, according to the invention of claim 9 , excretion absorption efficiency can be improved by using a liquid-permeable nonwoven fabric.

Moreover, according to invention of Claim 10 , it can prevent that excrement returns to the skin surface side by using a water-repellent nonwoven fabric.

In particular, according to the invention of claim 11, the use of the tape-like elastic member eliminates the need for a non-woven fabric with respect to the second tape-like member, thereby reducing the necessary materials.

In particular, according to the invention of claim 12 , the excretion receptacle can be easily formed.

In particular, according to the invention of claim 13 , since the excrement receptacle has a woven structure, the excrement receptacle can be formed without requiring an adhesive. Moreover, the unevenness | corrugation diversity in an excretion receptacle can be increased, and the spreading | diffusion of excrement can further be prevented.

In particular, according to the invention of claim 14 , it is possible to prevent the backflow of excrement while maintaining the excretion absorption efficiency.

In particular, according to the invention of claim 15 , the surface liner can be fixed to the absorbent article and can be used easily.

In particular, according to the invention of claim 17 , it is possible to effectively suppress the diffusion of excrement in the absorbent article in the front-rear direction.

According to the invention of claim 18 , in particular, since the surface liner is disposed at a portion offset toward the rear side of the absorbent article, the excrement can be reliably received to prevent the excrement from spreading, and the wearer's Does not cause discomfort in the abdomen.

In particular, according to the nineteenth aspect of the present invention, the unpleasant feeling given to the wearer by the step formed at the edge of the surface liner can be alleviated.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<1. First Embodiment>
<1-1. Configuration of surface liner>
FIG. 1 is a plan view showing a surface liner 1a according to the first embodiment. 2 is a cross-sectional view taken along the line II-II in FIG. This surface liner 1a is an auxiliary absorbent device that is used by being mounted on the skin surface side of an absorbent article such as a disposable diaper, and as an excrement diffusion preventing device that receives excrement from the wearer and prevents the excrement from spreading. Function.

  The surface liner 1a includes a sheet-like excrement receptacle 20 that constitutes a surface for receiving excrement. The excrement receptacle 20 has a substantially rectangular outer shape, and includes a plurality of tape-like members extending in a strip shape arranged in a lattice shape. Specifically, the excretion receptacle 20 is substantially parallel to a plurality of tape-like members (hereinafter, short-side tape-like members) 2 extending substantially parallel along the short direction (width direction) and along the longitudinal direction. A plurality of tape-like members (hereinafter, referred to as longitudinal tape-like members) 3 extending in the direction are bonded to each other with an adhesive. Therefore, the plurality of short tape-shaped members 2 and the plurality of long tape-shaped members 3 are arranged substantially orthogonally.

  The plurality of tape-like members extending along the same direction are arranged on the same main surface of the excretion receptacle 20. In other words, the plurality of short tape-shaped members 2 and the plurality of long tape-shaped members 3 are arranged on different main surfaces of the excretion receptacle 20. That is, a plurality of short tape-like members 2 are arranged on one main surface (the surface on the viewing side in FIG. 1) of the excrement receptacle 20, and a plurality of long tape-like members 3 are arranged on the other main surface. Will be. The width of the tape-like members 2 and 3 is preferably 1 mm or more and 30 mm or less, more preferably 3 mm or more and 20 mm or less, and further preferably 5 mm or more and 15 mm or less.

  Each short tape-shaped member 2 is composed of two tape-shaped nonwoven fabrics 21 and 22 (see FIG. 2). These two tape-shaped non-woven fabrics 21 and 22 are bonded to each other with a thread-like elastic member 41 extending in the short direction sandwiched therebetween. Therefore, when the thread-like elastic member 41 contracts, as shown in FIG. 1, the tape-shaped nonwoven fabrics 21 and 22 contract and a large number of irregular wrinkles are formed on the surface thereof.

  Similarly, each longitudinal tape-shaped member 3 is composed of two tape-shaped nonwoven fabrics 31 and 32 (see FIG. 2). The two tape-shaped nonwoven fabrics 31 and 32 are bonded with a thread-like elastic member 42 extending in the longitudinal direction between them. Therefore, when the thread-like elastic member 42 contracts, the tape-shaped nonwoven fabrics 31 and 32 contract and a large number of irregular wrinkles are formed on the surface thereof. Thereby, the thread-like elastic members 42 and 43 are distributed and disposed throughout the excrement receptacle 20, and the excrement receptacle 20 can be expanded and contracted.

  As a material for the tape-shaped nonwoven fabrics 21, 22, 31, and 32, a liquid-permeable nonwoven fabric is employed in order to increase the absorption efficiency of excrement. As the liquid-permeable nonwoven fabric, the surface of a nonwoven fabric using hydrophilic fibers (cellulose, rayon, cotton, etc.) or hydrophobic fibers (polypropylene, polyethylene, polyester, polyamide, nylon, etc.) is treated with a surfactant. And non-woven fabric made liquid-permeable. Moreover, as a raw material of the tape-shaped nonwoven fabrics 21, 22, 31, and 32, a plastic film having minute openings may be used.

  In addition, as the material for the thread-like elastic members 41 and 42, an elastic stretchable material used for general absorbent articles such as polyurethane thread and natural rubber can be used. Adhesion techniques such as adhesion using a hot melt adhesive, thermal welding, and ultrasonic welding can be employed for bonding the thread-like elastic members 41 and 42.

  Further, the plurality of short tape-like members 2 are arranged in a state of being separated from each other, and the plurality of long tape-like members 3 are also arranged in a state of being separated from each other. Thereby, in the whole main surface of the excretion receptacle 20, a large number of rectangular through-holes (openings that penetrate from one main surface to the other main surface) in each of the longitudinal direction and the short-side direction. 91 is formed in a dispersed manner. Thus, by arranging the plurality of short tape-like members 2 and the plurality of long tape-like members 3 in different directions, the through holes 91 are formed in a dispersed manner by the gaps between the tape-like members 2 and 3. Therefore, no heat treatment is required for the formation of the through hole 91.

<1-2. Usage of surface liner>
Next, the usage aspect of the surface liner 1a comprised as mentioned above is demonstrated. FIG. 3 is a developed plan view showing a state in which the surface liner 1a is attached to the absorbent article 10a, which is a disposable diaper, and shows a state seen from the skin surface side. FIG. 4 is a schematic diagram of a cross-section at the position IV-IV in FIG. In FIG. 3, portions of the surface liner 1 a that are hidden by the components of the absorbent article 10 a are indicated by broken lines.

  First, the structure of the absorbent article 10a will be described. In the following, when the absorbent article is mounted so as to cover the wearer's crotch, the direction of the absorbent article corresponding to the front-rear direction of the wearer's crotch (the direction from the abdomen to the back) (in FIG. 3) The longitudinal direction) is referred to as “front-rear direction”, and the direction of the absorbent article corresponding to the left-right direction (lateral direction in FIG. 3) is referred to as “left-right direction”. Moreover, the side of the absorbent article corresponding to the front side (abdomen side) of the wearer's crotch is referred to as “front side”, and the side of the absorbent article corresponding to the back side (back side) of the wearer's crotch Is called “rear side”. In FIG. 3, the upper side in the figure is the front side of the absorbent article 10a.

  The absorbent article 10 a has a structure in which an absorbent body 14 extending in the front-rear direction is sandwiched between a top sheet 11 and a back sheet 13. Thereby, these are laminated | stacked and arrange | positioned in order of the top sheet 11, the absorber 14, and the back sheet | seat 13 from the skin surface side (refer FIG. 4). With such a laminated structure, the liquid component of excrement passes through the top sheet 11 and is absorbed by the absorbent body 14, and is prevented from exuding to the outside by the back sheet 13.

  As a material of the top sheet 11, a liquid-permeable nonwoven fabric as described above is preferable. On the other hand, the material of the back sheet 13 is preferably a water-repellent nonwoven fabric using hydrophobic fibers (polypropylene, polyethylene, polyester, polyamide, nylon, etc.). Further, as a material for the back sheet 13, a plastic film, a composite material of a nonwoven fabric and a plastic film, or the like may be used.

  Examples of the absorbent body 14 include an absorbent core obtained by mixing a granular polymer water absorbent in a hydrophilic fiber aggregate layer such as pulverized pulp fiber or cellulose fiber, a paper sheet such as tissue paper, or a liquid-permeable nonwoven fabric sheet. Examples include those that are wrapped in a covering sheet and molded into a predetermined shape (rectangular shape, hourglass shape, gourd shape, etc.).

  Moreover, the side sheet | seat 12 is provided in the edge part of the left-right direction of the absorbent article 10a on the top sheet 11 along the longitudinal direction. A thread rubber 15 is disposed at an end of the side sheet 12 on the center side, and a part of the side sheet 12 rises toward the skin surface side by the contraction of the thread rubber 15 and functions as a side three-dimensional gather. Side leakage of excrement is prevented by this side solid gather. Examples of the material for the side sheet 12 include a liquid-impermeable plastic film and a water-repellent nonwoven fabric.

  With respect to the absorbent article 10a having the above structure, the surface liner 1a has a longitudinal direction along the front-rear direction of the absorbent article 10a, and ends in the short direction of the top sheet 11 and the side sheet 12. It is accommodated so as to be sandwiched between them. Thereby, the excretion receptacle 20 of the surface liner 1a is located on the skin surface side with respect to the laminated structure of the top sheet 11, the absorber 14, and the back sheet 13, and is exposed on the surface.

  In addition, the surface liner 1a should be disposed at a portion that is offset to the rear side of the center portion in the front-rear direction of the absorbent article 10a so as to reliably receive stool and not cause discomfort to the wearer's abdomen. Is desirable. Furthermore, it is desirable that the surface liner 1a is disposed so that the main surface of the excrement receptacle 20 on which the short tape-like member 2 is disposed is on the skin surface side. Thereby, the some short tape-shaped member 2 is arrange | positioned on the skin surface side along the left-right direction of the absorbent article 10a, and the some longitudinal tape-shaped member 3 is an absorbent article along the front-back direction of the absorbent article 10a. 10a side (hereinafter referred to as "article side").

  When the absorbent article 10a to which the surface liner 1a is attached in this way is used, it is assumed that loose excrement including liquid components such as loose stool and solid components is excreted. Such loose excrement flows in a state where a liquid component and a solid component are mixed. In the absorbent article 10a, diffusion of such loose excrement in the front-rear direction becomes a particular problem.

  The excreted excreted matter is received by the main surface on the skin side of the excrement receiving body 20 of the surface liner 1a. Then, excrement enters between the plurality of short tape-like members 2 and further enters the article side of the excretion receptacle 20 through the plurality of through holes 91 and the like.

  On the skin surface side of the excrement receptacle 20, the flow of excrement is blocked by the plurality of short tape-like members 2. Since the plurality of short tape-like members 2 are along the left-right direction of the absorbent article 10a, the flow of excrement in the front-rear direction (longitudinal direction of the excretion receptacle 20) is effectively suppressed. The short tape-like member 2 effectively functions as a wall for blocking the flow of excrement because the wings are formed by the thread-like elastic member 41 and the substantial thickness thereof is increased.

  On the other hand, on the article side of the excretion receptacle 20, excrement enters between the plurality of longitudinal tape-like members 3 along the front-rear direction of the absorbent article 10a. The longitudinal tape-shaped member 3 also has a substantial thickness due to the formation of wrinkles by the thread-like elastic member 42, so that a relatively large amount of excrement can flow in. At the same time, excrement passes between the ridges formed on the longitudinal tape-shaped member 3 and spreads in the left-right direction of the absorbent article 10a.

  The excrement receptacle 20 of the surface liner 1a can be used in various ways, such as between the short tape-like members 2, between the long tape-like members 3, the through holes 91, and the wrinkles of the tape-like members 2 and 3 themselves. A rough unevenness distribution. That is, a part of the uneven distribution is given as a wrinkle distribution of the tape-like members 2 and 3 themselves. In particular, solid components of excreta can be accumulated in these irregularities. Since the uneven distribution is irregular due to irregular wrinkles of the tape-like members 2 and 3, a wide variety of excrement can be retained. Further, since the substantial thickness of the tape-like members 2 and 3 is increased by the thread-like elastic members 41 and 42, the size of the unevenness can be increased and a large amount of excrement can be accumulated. As a result, the spread of excrement over a wide range is effectively prevented.

  Moreover, the liquid component of excrement will be absorbed by the absorber 14 when it reaches the absorbent article 10a. A large number of through holes 91 are dispersedly formed on the main surface of the excrement receptacle 20, and the excrement receptacle 20 is made of a liquid-permeable nonwoven fabric. Will quickly reach the absorbent article 10a. Further, on the article side of the excretion receptacle 20, the excrement spreads in the left-right direction of the absorbent article 10a, so that the liquid component is absorbed in a wide range of the absorber 14. Therefore, the absorption efficiency of the liquid component of excrement by the absorber 14 can be greatly improved. As a result, the flow amount of the liquid component is reduced and the excrement flow itself is suppressed, so that the excrement is further prevented from spreading over a wide range.

  The large number of through holes 91 formed in the excrement receptacle 20 serve as a path through which excrement passes through to the article side, and also functions as a space in which excrement is accumulated and accumulated. Since many through-holes 91 are distributed substantially periodically over the entire main surface of the excretion receptacle 20, the absorption efficiency and the accumulated amount of excrement can be improved uniformly with respect to the entire excretion receptacle 20. . As a result, even if the excrement is received at any position of the excrement receptacle 20, the diffusion of the excrement is effectively prevented.

In addition, if each opening area of these through-holes 91 is too small, the passing amount and accumulation amount of excrement will fall, but conversely, if the opening area is too large, excrement that has once entered the article side will be on the skin surface. There is also the possibility of backflowing to the side. For this reason, each opening area of these through-holes 91 is preferably in a non-extended state of the uneven distribution (a state in which the thread-like elastic members 41 and 42 are contracted and the wrinkles due to the thread-like elastic members 41 and 42 are not elongated). is a 1 mm ² or more 900 mm ² or less, more preferably 4 mm ² or more 700 mm ² or less, more preferably 10 mm ² or more 400 mm ² or less. Thereby, the backflow of excrement can be prevented, maintaining the absorption efficiency of excrement.

  As described above, when the absorbent article 10a to which the surface liner 1a according to the present embodiment is attached is used, diffusion of excrement to a wide range is effectively prevented. As a result, since the area where excrement touches the skin of the wearer is reduced, skin irritation can be prevented and wiping work of excrement adhering to the skin (especially its solid components) can also be reduced. .

<2. Second Embodiment>
Next, a second embodiment will be described. FIG. 5 is a plan view showing a surface liner 1b according to the second embodiment. FIG. 6 is a cross-sectional view at the position VI-VI in FIG. The surface liner 1b of the second embodiment is different from the surface liner 1a of the first embodiment in the structure relating to the longitudinal tape-like member 3.

  In the second embodiment, no elastic member such as the thread-like elastic member 42 is bonded to each longitudinal tape-shaped member 3, and each longitudinal tape-shaped member 3 is constituted by only one tape-shaped nonwoven fabric 31. The Therefore, no ridges are formed on the plurality of longitudinal tape-like members 3. By comprising in this way, a required material can be decreased compared with the surface liner 1a of 1st Embodiment, and manufacturing cost can be reduced.

  This surface liner 1b can also be used similarly to the first embodiment. Also in this case, by arranging the surface liner 1b so that the main surface of the excrement receptacle 20 on which the short tape-like member 2 is arranged is on the skin surface side, the excrement in the front-rear direction of the excrement in the absorbent article 10a. The flow to (the excrement receptacle 20 longitudinal direction) is effectively suppressed.

<3. Third Embodiment>
Next, a third embodiment will be described. FIG. 7 is a plan view showing a surface liner 1c according to the third embodiment. 8 is a cross-sectional view at the position VIII-VIII in FIG. The surface liner 1c of the third embodiment is different from the surface liner 1a of the first embodiment in an elastic member that forms a ridge on the tape-like members 2 and 3.

  In the third embodiment, tape-like elastic members 43 and 44 having substantially the same width as the tape-like members 2 and 3 are used as elastic members to be bonded to the tape-like members 2 and 3. Examples of the material of the tape-like elastic members 43 and 44 include natural rubber formed into a tape shape, synthetic rubber such as styrene-butadiene, butadiene, isoprene, and neoprene, elastic polyolefin, urethane, and elastic nonwoven fabric. It is done.

  When the tape-like elastic members 43 and 44 are bonded to the tape-like members 2 and 3, it is not necessary to sandwich the tape-like elastic members 43 and 44 with the nonwoven fabric. For this reason, each tape-shaped member 2 and 3 is comprised by the tape-shaped nonwoven fabric 21 and 31, respectively. More specifically, one short tape-shaped member 2 is composed of a single tape-shaped nonwoven fabric 21, and a tape-shaped elastic member 43 is bonded to the single tape-shaped nonwoven fabric 21 in an expanded state. One longitudinal tape-like member 3 is composed of one piece of tape-like nonwoven fabric 31, and a tape-like elastic member 44 is bonded to the one piece of tape-like nonwoven fabric 31 in an expanded state. Thereby, a lot of irregular wrinkles are formed on the surface of the tape-like members 2 and 3 as in the first embodiment.

  By using the tape-like elastic members 43 and 44 in this way, each tape-like member 2 and 3 can be composed of a single piece of tape-like nonwoven fabric 21 and 31, which is compared with the surface liner 1a of the first embodiment. Thus, the necessary materials can be reduced and the manufacturing cost can be reduced. This surface liner 1c can also be used similarly to the first embodiment.

<4. Fourth Embodiment>
Next, a fourth embodiment will be described. FIG. 9 is a plan view showing a surface liner 1d according to the fourth embodiment. FIG. 10 is a cross-sectional view taken along the line XX in FIG. The surface liner 1d of the fourth embodiment is different from the surface liner 1a of the third embodiment in the structure related to the longitudinal tape-like member 3.

  In the third embodiment, no nonwoven fabric is used for each longitudinal tape-like member 3, and each longitudinal tape-like member 3 is composed of only one tape-like elastic member 33 having a relatively large thickness. . Examples of the material of the tape-like elastic member 33 include a polyurethane film having a thickness of about 2 mm to 5 mm and formed into a tape shape. By comprising in this way, a nonwoven fabric becomes unnecessary regarding the longitudinal tape-shaped member 3, compared with the surface liner 1c of 3rd Embodiment, a required material can be decreased and manufacturing cost can further be reduced. This surface liner 1d can also be used in the same manner as in the first embodiment.

  In this embodiment, the structure of the short tape-like member 2 is the same as that of the third embodiment (a structure in which a tape-like elastic member is bonded to a single tape-like nonwoven fabric 21). A structure similar to that of the first embodiment (a structure in which two tape-like nonwoven fabrics 21 and 22 are bonded with the thread-like elastic member 41 interposed therebetween) may be employed.

<5. Fifth embodiment>
Next, a fifth embodiment will be described. FIG. 11 is a plan view showing a surface liner 1e according to the fifth embodiment. 12 is a cross-sectional view at the position XII-XII in FIG. The surface liner 1e of the fifth embodiment is different from the surface liner 1a of the first embodiment in the method of combining a plurality of short tape-like members 2 and a plurality of longitudinal tape-like members 3. .

  In the fifth embodiment, although the structure itself relating to the tape-like members 2 and 3 is the same as that of the first embodiment, a plurality of short tape-like members 2 and a plurality of longitudinal tape-like members 3 are provided. They are used like wefts and warps in fabrics, and are interlaced according to the same rules as fabrics. Thereby, the excretion receptacle 20 has a fabric structure in which a plurality of short tape-like members 2 and a plurality of longitudinal tape-like members 3 are interwoven. Thus, the excrement receptacle 20 can be formed, without requiring an adhesive agent, by making the structure of the excrement receptacle into a woven fabric structure.

  This surface liner 1e can also be used in the same manner as in the first embodiment. Since the structure of the excretion receptacle 20 is a woven structure, the variety of unevenness formed in the excretion receptacle 20 can be increased. As a result, since various excreta can be accumulated, it is possible to further prevent the excrement from spreading.

  Although the woven fabric structure shown in FIG. 11 is a plain weave, other woven fabric structures such as oblique weave and satin weave may be used. Further, the structure relating to the tape-like members 2 and 3 themselves used as the weft and the warp is not limited to the structure of the first embodiment, and any of the structures described in the first to fourth embodiments. It may be of a structure.

<6. Sixth Embodiment>
Next, a sixth embodiment will be described. FIG. 13 is a plan view showing a surface liner 1f according to the sixth embodiment. FIG. 14 is a cross-sectional view at the XIV-XIV position in FIG. In the above embodiment, the sheet-like excrement receptacle 20 is formed by combining the tape-like members 2 and 3, but in the surface liner 1f of the sixth embodiment, the substantially rectangular two The sheet-like excrement receptacle 20 is formed by bonding the nonwoven fabrics 51 and 52 of a sheet.

  As shown in the figure, the excrement receptacle 20 of the surface liner 1f has a structure in which two nonwoven fabrics 51 and 52 having a substantially rectangular outer shape are bonded. Between these two nonwoven fabrics 51 and 52, a plurality of thread-like elastic members 46 and 47 dispersed and arranged in a lattice shape are sandwiched and bonded between them.

  The plurality of thread-like elastic members 46 extend substantially in parallel along the short side direction, and the plurality of thread-like elastic members 47 extend substantially in parallel along the longitudinal direction. Thus, the plurality of thread-like elastic members 46 and the plurality of thread-like elastic members 47 are arranged substantially orthogonally, and a rectangular region surrounded by the thread-like elastic members 46, 47 is formed on the entire main surface of the excretion receptacle 20. It is formed approximately periodically. Each rectangular region is formed with a substantially circular through-hole (opening through from one main surface to the other main surface) 92. Therefore, also in the excretion receptacle 20 of the sixth embodiment, a large number of through-holes 92 are formed in a substantially periodic manner with respect to each of the longitudinal direction and the lateral direction over the entire main surface.

  As the material of the nonwoven fabrics 51 and 52, the liquid-permeable nonwoven fabric as described above is employed in order to increase the excretion absorption efficiency. In addition, as the material of the thread-like elastic members 46 and 47, an elastic stretchable material used for general absorbent articles such as polyurethane thread and natural rubber can be used.

  13 and 14 show a state where the thread-like elastic members 46 and 47 are extended to some extent for convenience of explanation. When the thread-like elastic members 46 and 47 contract, the excrement receptacle 20 contracts both in the longitudinal direction and in the lateral direction, and a large number of irregular wrinkles are formed on the main surface. Thereby, as shown in FIG. 15 which is a cross-sectional view at the same position as FIG. 14, an irregular uneven distribution is given to the entire main surface of the excretion receptacle 20.

  This surface liner 1f can also be used in the same manner as in the first embodiment. In the case where the absorbent article 10a to which the surface liner 1f is attached is used, when loose excreta including liquid components such as loose stool and solid components is excreted, the excreted excreted is first removed from the surface liner 1f. It is received by the main surface of the excrement receptacle 20 on the skin side.

  In particular, solid components in the excrement are captured by the irregularities formed in the excreta receiver 20, and accumulated in the irregularities. This effectively prevents the excrement from spreading over a wide range. On the other hand, since many through-holes 92 are present in a dispersed manner on the main surface of the excretion receptacle 20, and the excretion receptacle 20 is composed of a liquid-permeable nonwoven fabric, particularly liquid components in the excrement are The absorbent article 10a is quickly reached. For this reason, also in the sixth embodiment, the absorption efficiency by the absorber 14 for the liquid component of excrement is improved, the excrement flow itself is suppressed, and the excrement is further diffused over a wide range. Will be prevented.

  In addition, about the arrangement | positioning aspect of a thread-like elastic member, it is not limited to what was shown in FIG. 13, The other aspect may be sufficient if various unevenness | corrugations can be scattered and formed in the whole main surface of the excretion receiving body 20. FIG. For example, the thread-like elastic members 46 and 47 may be arranged so as to intersect with each other at an angle different from a right angle, or a plurality of arranged thread-like elastic members may be arranged in a meandering manner.

  Further, as the elastic member that forms the folds on the excrement receptacle 20, a tape-like elastic member as described in the third embodiment may be used instead of the thread-like elastic member. According to this, since it is not necessary to sandwich the excrement receptacle 20 with the nonwoven fabric with respect to the adhesion to the excretion receptacle 20, the excrement receptacle 20 can also be constituted by a single nonwoven fabric.

<7. Seventh Embodiment>
Next, a seventh embodiment will be described. FIG. 16 is a plan view showing a surface liner 1g according to the seventh embodiment. The surface liner 1g of 7th Embodiment is provided with the coupling | bond part 6 for couple | bonding with the absorbent article 10a.

  As shown in the drawing, the surface liner 1g of the seventh embodiment includes the excrement receptacle 20 having the same structure as that of the first embodiment, and both end portions of the excrement receptacle 20 in the longitudinal direction. Is provided with a coupling portion 6 for surface coupling with the absorbent article 10a. Each of the coupling portions 6 includes a liquid-permeable nonwoven fabric 61 in which no elastic member is present, and a surface fastener 62 (more precisely, a male engagement member of a surface fastener) serving as a coupling member. The surface fastener 62 is disposed on the surface of the nonwoven fabric 61 on the article side when the absorbent article 10a is mounted.

  FIG. 17 is a developed plan view showing a state in which the surface liner 1g is mounted on the absorbent article 10a. When the surface liner 1g is attached, the surface liner 1g is disposed at the same position as in FIG. 3 and the surface fastener 62 of the coupling portion 6 is coupled in surface contact with the top sheet 11. Thereby, the surface liner 1g can be fixed to the optimal position of the absorbent article 10a. For this reason, since the position of the surface liner 1g is prevented from being shifted while the absorbent article 10a is being mounted, the surface liner 1g can be used easily and effectively.

  In addition, the position which attaches the hook fastener 62 is not limited to the both ends of the longitudinal direction of the excretion receptacle 20, and other positions, such as the edge part of the short direction of the excretion receptacle 20, may be sufficient. In addition, the surface fastener 62 is not the nonwoven fabric 61, but a region having no elastic characteristics (a region where no elastic member is disposed or a region where the elastic member is cut) is provided in a part of the excrement receptacle 20, and is disposed in the region. Also good. Further, the coupling member for surface coupling is not limited to the surface fastener, and other materials such as an adhesive tape may be used. Further, the structure of the excretion receptacle 20 is not limited to the structure of the first embodiment, and may be any structure described in the first to sixth embodiments.

<8. Eighth Embodiment>
Next, an eighth embodiment will be described. In the above-described embodiment, the surface liner is described as being mounted on the skin surface side of the absorbent article. However, of course, the surface liner may be a surface material of the absorbent article. This also provides the same effect as the above embodiment.

  FIG. 18 is a plan view showing an absorbent article 10b according to the eighth embodiment. FIG. 19 is a schematic cross-sectional view at the position XIX-XIX in FIG. In FIG. 18, portions of the surface liner 1 that are hidden by other parts of the absorbent article 10 b are indicated by broken lines. In addition, also in this FIG. 18, the upper part side in a figure turns into the front side of the absorbent article 10b.

  The absorbent article 10b has a structure in which the absorbent body 14 is sandwiched between the top sheet 11 and the back sheet 13 in the same manner as the absorbent article 10a in FIG. Moreover, the side sheet | seat 12 in which the thread rubber 15 was provided is arrange | positioned at the edge part of the left-right direction of the absorbent article 10a, and a part of side sheet 12 toward the skin surface side by shrinkage | contraction of the thread rubber 15. It functions as a rising side solid gather.

  And the surface liner 1 is arrange | positioned as the surface material of the absorbent article 10b in the skin surface side of the laminated structure of the top sheet 11, the absorber 14, and the back sheet 13. As shown in FIG. The structure of the surface liner 1 may be any structure of the surface liners 1a to 1g described in the first to seventh embodiments. In either case, the surface liner 1 has its longitudinal direction along the front-rear direction of the absorbent article 10b and its end in the short direction is sandwiched between the top sheet 11 and the side sheet 12. Be placed. Moreover, the surface liner 1 is arrange | positioned in the part which leaned to the back side rather than the center part of the front-back direction of the absorbent article 10b so that a stool may be received reliably and a discomfort may not be given to a wearer's abdomen. The surface liner 1 is coated with an adhesive on the peripheral region (region in the vicinity of the edge in the longitudinal direction and the short direction), and is adhered and fixed to the top sheet 11. It is desirable that the peripheral region to which the adhesive is applied be flat without arranging an elastic member.

  Further, as the structure of the surface liner 1, the structure of the surface liners 1a to 1d described in the first to fourth embodiments (the short tape-like member 2 is disposed on one main surface of the excrement receptacle 20). When the structure) is employed, the surface liner 1 is disposed such that the main surface of the excrement receptacle 20 on which the short tape-shaped member 2 is disposed is on the skin surface side. That is, a plurality of short tape-like members 2 are arranged along the left-right direction of the absorbent article 10a on the main surface of the excretion receptacle 20 on the skin surface side. Thereby, the short tape-shaped member 2 becomes a wall, and the flow to the front-back direction of the excrement in the absorbent article 10a is suppressed effectively.

  The absorbent article 10b further includes a cover sheet 16 on the skin surface side of the surface liner 1. In the cover sheet 16, one elliptical opening 17 is formed at a position corresponding to the wearer's hip. The surface liner 1 is exposed to the surface from the opening 17 of the cover sheet 16 while the peripheral region on the skin side is covered with the cover sheet 16. Examples of the material for the cover sheet 16 include the liquid-permeable nonwoven fabric as described above so as not to impair the excretion absorption efficiency.

  The cover sheet 16 is bonded to the side sheet 12 and the top sheet 11 at an end portion thereof. Therefore, the surface liner 1 is more reliably fixed to the optimal position by being covered with such a cover sheet 16. Moreover, since the peripheral area | region of the surface liner 1 is covered with the cover sheet 16, the discomfort which the level | step difference formed with the edge of the surface liner 1 and the top sheet 11 gives to a wearer can be relieved. Furthermore, even if the backflow of excrement occurs through the through hole of the surface liner 1, the cover sheet 16 can prevent such excrement from being exposed to the skin surface, and the area where the excrement touches the skin. Can be reduced.

  In addition, when arrange | positioning such a cover sheet 16, the top sheet 11 should just exist corresponding to the whole surface by the side of the article | item of the surface liner 1 at least. Further, if the cover sheet 16 is disposed, the positional deviation can be prevented without adhering the surface liner 1 to the top sheet 11 or the like. Therefore, the adhesion of the surface liner 1 may be omitted. Conversely, the cover sheet 16 itself may be omitted from the absorbent article 10b.

<9. Other embodiments>
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications are possible. Hereinafter, such other embodiments will be described. Of course, you may combine the form demonstrated below suitably.

  In the said embodiment, although it demonstrated that a liquid-permeable nonwoven fabric was employ | adopted as a raw material of the tape-shaped nonwoven fabrics 21, 22, 23, and 24, you may employ | adopt a water-repellent nonwoven fabric conversely. Similarly, a water-repellent nonwoven fabric may be adopted as the material for the nonwoven fabrics 51 and 52 of the sixth embodiment. Examples of the water-repellent nonwoven fabric include nonwoven fabrics using hydrophobic fibers (polypropylene, polyethylene, polyester, nylon, etc.). Thus, when a water-repellent nonwoven fabric is employ | adopted, it can prevent effectively the excrement which once entered the goods side returns to the skin surface side. Even if a water-repellent non-woven fabric is employed, the excretion absorption efficiency is not greatly reduced because a large number of through holes 91 and 92 are formed in the main surface of the excretion receptacle 20. In addition, as a material for the tape-like elastic members 43, 44, and 33 of the third and fourth embodiments, a water-repellent elastic member may be employed. Also in this case, it is possible to effectively prevent excrement that has once entered the article side from returning to the skin side.

  Moreover, although the said embodiment demonstrated that a wrinkle was formed in the excretion receptacle 20 by an elastic member, you may form a wrinkle by heat processing. However, the wrinkles formed by the heat treatment are generally regular. From the viewpoint of forming irregular wrinkles on the excretion receptacle 20 and preventing the diffusion of various excrement due to the irregular uneven distribution provided thereby, an elastic member is used as in the above embodiment. Is desirable.

  Moreover, in the said embodiment, although the some tape-shaped member 2 and the some tape-shaped member 3 which form the excretion receptacle 20 were orthogonally arranged, if these can be arrange | positioned in a different direction, it will be right-angled. May intersect at different angles. Moreover, you may arrange | position the some tape-shaped members 2 and 3 so that it may extend in directions other than the direction (short direction, long direction) prescribed | regulated by the external shape of the excretion receptacle 20.

  In the above embodiment, the entire surface liner 1 is the excrement receptacle 20, but only a part of the surface liner 1 may have the same structure as the excrement receptacle 20 described above. .

It is a top view which shows the surface liner which concerns on 1st Embodiment. It is sectional drawing in the II-II position of FIG. It is a top view which shows a mode that the surface liner which concerns on 1st Embodiment was mounted | worn with the absorbent article. It is sectional drawing in the IV-IV position of FIG. It is a top view which shows the surface liner which concerns on 2nd Embodiment. It is sectional drawing in the VI-VI position of FIG. It is a top view which shows the surface liner which concerns on 3rd Embodiment. It is sectional drawing in the VIII-VIII position of FIG. It is a top view which shows the surface liner which concerns on 4th Embodiment. It is sectional drawing in the XX position of FIG. It is a top view which shows the surface liner which concerns on 5th Embodiment. It is sectional drawing in the XII-XII position of FIG. It is a top view which shows the surface liner which concerns on 6th Embodiment. It is sectional drawing in the XIV-XIV position of FIG. It is sectional drawing of the surface liner which concerns on 6th Embodiment. It is a top view which shows the surface liner which concerns on 7th Embodiment. It is a top view which shows a mode that the surface liner which concerns on 7th Embodiment was mounted | worn with the absorbent article. It is a top view which shows the absorbent article which concerns on 8th Embodiment. It is sectional drawing in the XIX-XIX position of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,1a-1g Surface liner 2 Short tape-shaped member 3 Long tape-shaped member 10a, 10b Absorbent article 14 Absorber 20 Excretion receptacle 41, 42, 46, 47 Thread-like elastic member 62 Surface fastener 91, 92 Through-hole

Claims (20)

A surface liner that can be worn on the skin side of an absorbent article that absorbs the excrement of the wearer,
Ri Na giving unevenness distribution into a number of sheet-like excrement dispersing the hole receptacle,
A wrinkle forming means that is dispersedly disposed in the excrement receptacle and forms a fistula in the excrement receptacle;
With
At least a part of the uneven distribution is given as the wrinkle distribution,
The excrement receptacle is
A plurality of first tape-like members extending substantially in parallel with being spaced apart from each other;
A plurality of second tape-shaped members extending substantially parallel to each other in a state of being separated from each other;
Arranged in different directions,
Surface liner, characterized that you have the through hole is formed by gaps between the tape-like member. The surface liner of claim 1,
The surface liner, wherein the uneven distribution is an irregular distribution. The surface liner according to claim 1 or 2,
The surface liner, wherein the plurality of through holes are distributed substantially periodically in the excrement receptacle.   The surface liner according to any one of claims 1 to 3,
  The surface liner, wherein the wrinkle forming means is an elastic member that is dispersedly disposed on the excrement receptacle and expands and contracts the excrement receptacle.   The surface liner according to any one of claims 1 to 4,
  The excrement receptacle has a substantially rectangular shape,
  Each of the plurality of first tape-shaped members is disposed along a short direction of the excrement receptacle.   The surface liner of claim 5,
  The surface is characterized in that the wrinkle forming means is provided along the plurality of first tape-shaped members to form the wrinkles by contracting the plurality of first tape-shaped members in the lateral direction. liner.   The surface liner according to any one of claims 1 to 5,
  The surface liner, wherein the wrinkle forming means forms the wrinkles on both of the plurality of first tape-shaped members and the plurality of second tape-shaped members.   The surface liner according to claim 6 or 7,
  The surface liner, wherein the wrinkle forming means is a tape-like elastic member.   The surface liner according to any one of claims 1 to 8,
  The surface liner, wherein the plurality of first tape-shaped members and the plurality of second tape-shaped members are liquid-permeable tape-shaped nonwoven fabrics.   The surface liner according to any one of claims 1 to 8,
  The surface liner, wherein the plurality of first tape-shaped members and the plurality of second tape-shaped members are water-repellent tape-shaped nonwoven fabrics.   The surface liner according to any one of claims 1 to 6,
  The plurality of second tape-shaped members are tape-shaped elastic members.   The surface liner according to any one of claims 1 to 11,
  Either one of the plurality of first tape-shaped members and the plurality of second tape-shaped members is disposed on the main surface of the excrement receptacle on the skin surface side, and the other is the absorption of the excrement receptacle. A surface liner disposed on a main surface on the side of a functional article.   The surface liner according to any one of claims 1 to 12,
  The excrement receptacle has a fabric structure in which the plurality of first tape-shaped members and the plurality of second tape-shaped members are woven together.   The surface liner according to any one of claims 1 to 13,
  The opening area of each of the plurality of through holes is 1 mm in the non-stretched state of the uneven distribution. ² More than 900mm ² A surface liner characterized by:   The surface liner according to any one of claims 1 to 14,
  A coupling member for surface coupling with the absorbent article;
A surface liner characterized by further comprising:   An absorbent article having an absorbent that absorbs the excrement of the wearer,
  The surface liner according to any one of claims 1 to 15, on the skin surface side of the absorbent body,
An absorbent article comprising:   An absorbent article having an absorbent that absorbs the excrement of the wearer,
  The surface liner according to any one of claims 5 to 8, on the skin surface side of the absorbent body,
With
  The longitudinal direction of the excrement receptacle of the surface liner is a direction along the front-rear direction of the absorbent article,
  The absorbent article according to claim 1, wherein the plurality of first tape-shaped members of the surface liner are arranged on a main surface on a skin surface side of the excrement receptacle.   The absorbent article according to claim 16 or 17,
  The absorbent article, wherein the surface liner is disposed in a portion of the absorbent article that is offset toward the rear side.   The absorbent article according to any one of claims 16 to 18,
  A cover sheet covering at least a peripheral region on the skin surface side of the surface liner,
An absorbent article, further comprising:   The surface liner according to any one of claims 1 to 8,
  The surface liner, wherein the plurality of first tape-shaped members and the plurality of second tape-shaped members are tape-shaped nonwoven fabrics.

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