JP5002473B2 - Absorbent article and manufacturing method thereof - Google Patents

Description

  The present invention relates to an absorbent article and a method for producing the same. More specifically, the present invention relates to an absorbent article that can be disposed inside clothing or a diaper so that excrement can be well absorbed and retained, and a method for manufacturing the same.

  Conventionally, as an absorbent article for infants or adults such as the elderly and disabled persons, a urine pad provided with a top sheet, a back sheet, and an absorbent body interposed between a part of both sheets, Pads for watery stool are used.

  The above-mentioned urine pad is used so that the surface of the top sheet is in contact with the wearer's skin, so that the urine excreted by the wearer permeates the top sheet and is absorbed and held by the absorber. At the same time, leakage of excrement to the outside is prevented by the back sheet having excellent leakage prevention.

  Moreover, the male urine pad of the type which encloses and uses a male genitalia is known as an absorbent article specialized for men (for example, refer patent document 1). This male urine pad is an absorbent article provided with a top sheet (top sheet), a back sheet (back sheet) and an absorbent body, similar to conventional disposable diapers and urine pads. Rather, it is characterized in that male genitals are encapsulated.

For example, the male urine pad 100 shown in FIG. 22 includes a top sheet 102, a back sheet 104, and an absorbent body 106 interposed in a part between both sheets, and further on the back sheet 104 side. An adhesive portion 108 for mounting is formed on the surface. Such a male urine pad 100 is addressed from the lower side of the male genitalia 118 so that the upper edge 110 thereof is on the near side (the body side of the wearer), and along the straight lines L ₁ and L ₂ , After the right edge 112 and the left edge 114 are folded back toward the center of the pad, the adhesive portion 108 is used in a state of being fixed to the surface sheet 102 on the left edge 114 side. By doing so, the male urine pad 100 has a cone shape (sack shape) with the upper end edge 110 side as an opening and the lower end edge 116 side as an apex, so that the male genital box 118 can be encapsulated. Reference numeral 138 denotes a pad stretchable material.

  Since the male urine pad as described above is used in a state where the male genitalia is encapsulated, compared with a disposable diaper, or a urine pad that is simply placed on clothing or a diaper, excrement and the skin of the wearer The contact area can be reduced. Therefore, there is an advantage that skin troubles caused by excrement can be reduced.

  For example, although illustration is abbreviate | omitted, it has an absorber arrange | positioned between a surface sheet and a back surface sheet, and a flap part is along an outer side (outer edge) of an absorber along a longitudinal direction (left-right direction). A male urine pad (see, for example, Patent Document 2) in which a cut portion (slit) is formed at a substantially central portion in the longitudinal direction of the flap portion, or a male urine pad (for example, preliminarily molded into a bag shape) , See Patent Document 3).

JP-A-8-280727 (paragraph 0003, FIG. 1) JP 2001-129002 (paragraph 0007, FIG. 1) JP-A-9-299392 (paragraph 0009, FIG. 1)

  However, the male urine pad shown in Patent Documents 1 and 2 described above has a problem that the urine pad is easily displaced or detached from the male genitalia and may cause urine leakage. There is also a problem that it takes much time to install. Furthermore, the male urine pad shown in Patent Document 2 has a problem that a comfortable wearing feeling cannot be obtained because the male genital body is pressed in an unnatural form at the slit portion.

  In addition, the male urine pad described in Patent Document 3 has a problem that productivity is extremely low due to its complicated structure.

  The present invention has been made in order to solve the above-described problems of the prior art, and can be disposed inside clothing or a diaper to absorb and retain excrement satisfactorily and The manufacturing method is provided.

As a result of intensive investigations to solve the problems of the prior art as described above, the inventor of the present invention has an absorbent article including an absorber, a top sheet, and a back sheet. A skin surface sheet body having a flange-shaped portion that is formed into a bellows and that is folded at least twice at a folding line along the longitudinal direction of the absorbent body and folded at the center portion. As a result, the present inventors have completed the present invention. Specifically, the present invention provides the following absorbent articles and methods for producing the same.

[1] An absorber, disposed so as to cover the upper surface of the absorber, a top sheet made of at least a part of a liquid-permeable material, and disposed so as to cover the lower surface of the absorber, and impermeable to liquid A back sheet made of a conductive material and a skin sheet body disposed above the top sheet, the skin sheet body extending laterally from both side edges of the top sheet of the back sheet Formed by a sheet body that is a separate member from the top sheet and the back sheet, which is joined to a side flap that is a part that is formed, or a side edge of the top sheet or the back sheet, , At least one of an opening through which stool can pass and an opening through which male genitalia can be inserted is formed, and both sides of the area where the opening is formed in the skin sheet body In the region on the edge side, the side flap or the sheet member is folded back at least twice by a folding line along the longitudinal direction of the absorber , and both the longitudinal direction of the flange portion is formed. The end portions of the hook-shaped portions are joined in the folded state, while the central portion in the longitudinal direction of the hook-shaped portion is not joined in the folded state, and the central portion in the longitudinal direction of the hook-shaped portion is bellows Absorbent article configured to be stretchable in a shape .

[2] The skin sheet body is joined at both side edges of the top sheet and at least one end in the longitudinal direction thereof, and a bag-like space is formed between the skin sheet body and the top sheet. The absorbent article according to [1], which is formed.

[3] The skin sheet body is configured by folding back a portion integrally extended laterally from at least one side edge of the back sheet to the upper side of the top sheet. [1] Or the absorbent article as described in [2].

[4] The absorbent article according to any one of [1] to [3], wherein at least a pair of three-dimensional gathers are formed on the top surface of the top sheet below the skin sheet.

[5] The absorbent article according to any one of [1] to [4], wherein at least a pair of three-dimensional gathers are formed on a surface of the skin sheet body that faces the top sheet.

[6] The absorbent article according to any one of [1] to [5], wherein an opening stretchable material is disposed along a part of an outer edge of the opening of the skin surface sheet body.

[7] The absorbent article according to [6], wherein the absorbent article is used by being folded in half at a substantially central portion of the longitudinal length of the absorbent article.

[8] The absorption according to any one of [1] to [7], wherein the skin sheet body has at least a region where the opening is formed made of a water-repellent material or a liquid-impermeable material. Sex goods.

[9] The absorbent article according to any one of [1] to [8], wherein the lower surface of the back sheet has a fixing means for fixing to a clothing or a diaper.

[10] The absorbent article according to any one of [1] to [9], wherein an end stretchable material is disposed on at least one end side in the longitudinal direction of the absorbent article.

[11] The absorbent article according to any one of [1] to [10], which is a male urine pad that is used by inserting a male genitalia into the opening of the skin sheet body.

[12] The absorbent article according to any one of [1] to [10], wherein the absorbent article is a urine / feces pad used in the vicinity of a crotch part of clothing or a diaper.

[13] The absorbent article according to [12], wherein the skin sheet body has a urine permeable region through which urine can permeate.

[14] An absorber, disposed so as to cover the upper surface of the absorber, and disposed so as to cover at least a part of the liquid-permeable material, and to cover the lower surface of the absorber. A back sheet made of a conductive material and a skin sheet body disposed above the top sheet, the skin sheet body extending laterally from both side edges of the top sheet of the back sheet The skin sheet body is formed with at least one of an opening through which stool can pass and an opening through which male genitalia can be inserted, and the skin sheet body A region on both side edges of the region where the opening is formed has a hook-shaped portion that is folded by folding the side flaps at least twice along a fold line along the longitudinal direction of the absorber. Formed, both end portions in the longitudinal direction in the hook-shaped portion are joined in a folded state, while the central portion in the longitudinal direction in the hook-shaped portion is not joined in a folded state, A method of manufacturing an absorbent article in which a central portion in the longitudinal direction of the bowl-shaped portion is configured to be expandable and contracted in a bellows shape , wherein a cutout portion serving as the opening of the skin surface sheet body is formed , The step of obtaining the back sheet having the skin sheet precursor, which is a portion corresponding to the side flap, on both side edges thereof, and the absorber on the upper surface of the back sheet, and the upper surface of the back sheet wherein placing said topsheet so as to cover the upper surface of the absorber, the skin face sheet precursor extending from opposite side edges of said topsheet, folded along the longitudinal direction of the absorbent body Folding is folded at least twice in to line, forming the folds, the skin face sheet precursor the folds are formed, folded above the topsheet, said skin face sheet precursor The two end portions in the longitudinal direction of the hook-shaped portion are joined in a folded state, while the central portion in the longitudinal direction of the hook-shaped portion is not joined in the folded state, and is composed of the notch portion. Forming a skin sheet body in which an opening is formed and a central portion in the longitudinal direction of the bowl-shaped portion is configured to be expandable and contracted in a bellows shape .

[15] The method for manufacturing an absorbent article according to [14], wherein the skin sheet precursor is folded back above the top sheet outside the side edge of the absorber.

[16] The method for manufacturing an absorbent article according to [14], wherein the skin sheet precursor is folded back above the top sheet together with a part including a side edge of the absorber.

[17] The method according to any one of [14] to [16], further including a step of joining the skin sheet body formed by folding the skin sheet precursor and the top sheet on at least one longitudinal end side. The manufacturing method of the absorbent article in any one.

[18] An absorber, disposed so as to cover the upper surface of the absorber, at least a part of the top sheet made of a liquid-permeable material, and disposed so as to cover the lower surface of the absorber, and impermeable to liquid The top sheet is provided with a back sheet made of a conductive material and a skin sheet body disposed above the top sheet, and the skin sheet body is joined to a side edge of the top sheet or the back sheet The sheet and the back sheet are formed by a sheet member that is a separate member, and the skin sheet body is formed with at least one of an opening through which stool can pass and an opening through which male genitalia can be inserted , The sheet body is folded back at least twice by a fold line along the longitudinal direction of the absorber in a region on both sides of the region where the opening is formed in the skin sheet member. A folded hook is formed and both longitudinal ends of the hook are joined in a folded state while the longitudinal central portion of the hook is folded. A method of manufacturing an absorbent article that is not joined in a state and that is configured such that a central portion in the longitudinal direction of the bowl-shaped portion can be expanded and contracted in a bellows shape, and the absorber is disposed on the upper surface of the back sheet And the step of disposing the top sheet so as to cover the upper surface of the absorber disposed on the upper surface of the back sheet, and the sheet body in which the opening is formed is folded twice along one direction. And forming the hook-like portion and joining both ends in the longitudinal direction in the hook-like portion in a folded state, while the central portion in the longitudinal direction in the hook-like portion is not joined in a folded state, Said saddle Parallel central portion in the longitudinal direction and a step of obtaining the skin face sheet that is stretchable configured like bellows, said skin face sheet obtained, the folds are, in the longitudinal direction of the absorber in And a step of arranging the top sheet above the top sheet.

  The absorbent article of this invention can be arrange | positioned inside clothing or a diaper, and can absorb and hold | maintain excrement satisfactorily. The absorbent article of the present invention can be suitably used as a male urine pad or urine stool pad. For example, when the absorbent article of the present invention is used as a male urine pad, urine leakage is effectively prevented. It is possible to prevent the urine pad from shifting or coming off. Further, the wearing is simple and the wearing feeling is good.

  On the other hand, when it is used as a urine / feces pad that is placed near the crotch part of clothing or diapers, the stool is stored between the skin sheet body and the top sheet. Stool does not adhere to the buttocks, and the skin trouble of the wearer can be effectively prevented. Moreover, since there is little adhesion of feces to the body, it is very easy to clean the wearer's crotch and buttocks at the time of replacement, and the burden on the caregiver can be reduced.

Moreover, since the skin surface sheet | seat body which comprises the absorbent article of this invention has the hook-shaped part comprised so that expansion and contraction was possible in the center part of the longitudinal direction , skin surface sheet body and top sheet | seat It is easy to create a space between. For this reason, for example, when it is used as a urine pad, excrement can be temporarily stored in this space, and excretion can be absorbed and retained satisfactorily. In addition, when a male genitalia is inserted into this opening and used as a male urine pad, a sufficient space for holding the male genital can be secured, so that the wearing feeling of the absorbent article and the stability at the time of wearing are improved. Are better. Moreover, since this absorbent article is a simple structure, it is excellent in productivity.

  According to the method for producing an absorbent article of the present invention, the above-described absorbent article of the present invention can be produced simply and at low cost. In particular, this manufacturing method is excellent in terms of equipment cost because it can produce absorbent articles by applying an existing production line for producing conventional tape-type diapers and the like.

  Hereinafter, the best mode for carrying out the absorbent article and the method for producing the same according to the present invention will be specifically described with reference to the drawings. However, the present invention broadly encompasses absorbent articles having the invention-specific matters and manufacturing methods thereof, and is not limited to the following embodiments.

[1] Absorbent article:
The absorbent article of the present invention is disposed so as to cover the absorber, the upper surface of the absorber, at least a top sheet made of a liquid-permeable material, and disposed so as to cover the lower surface of the absorber, A back sheet made of a liquid-impermeable material, and a skin sheet body disposed above the top sheet, the skin sheet body being lateral to the side edges of the top sheet of the back sheet. The skin flap sheet body is formed by a side flap that is an extended portion, or a sheet body that is joined to a side edge of the top sheet or the back sheet, and is a separate member from the top sheet and the back sheet. the, at least one of the openings may be inserted an opening and a male genitalia capable of passing the stool is formed, a region where the opening in the skin face sheet is formed In the region of the side edge, the folds of the at fold line in the longitudinal direction side flap or the sheet is folded is folded at least twice of the absorbent body is formed, in the longitudinal direction of the folds Both ends are joined in a folded state, while the central portion in the longitudinal direction of the hook-like portion is not joined in the folded state, and the central portion in the longitudinal direction of the hook-like portion is It is configured to be stretchable in a bellows shape .

  This absorbent article can be placed inside clothing or a diaper to absorb and retain excreta satisfactorily. Moreover, since this absorbent article is a simple structure, it is excellent in productivity.

  The absorbent article of the present invention can be particularly suitably used as a male urine pad or a urine / feces pad (particularly a stool pad). For example, when the absorbent article of the present invention is used as a male urine pad, urine leakage can be effectively prevented and the urine pad is not easily displaced or detached. Further, the wearing is simple and the wearing feeling is good.

  On the other hand, when it is used as a urine / feces pad that is placed near the crotch part of clothing or diapers, the stool is stored between the skin sheet body and the top sheet. Stool does not adhere to the buttocks, and the skin trouble of the wearer can be effectively prevented.

In particular, as described above, a skin-like sheet body constituting the absorbent article is folded back at least twice by a folding line along the longitudinal direction on both side edges thereof , thereby forming a bowl-like part that is folded. Since the central portion in the longitudinal direction is configured to be stretchable in a bellows shape , a space is easily formed between the skin sheet body and the top sheet. For this reason, for example, when it is used as a urine pad, excrement can be temporarily stored in this space, and excretion can be absorbed and retained satisfactorily. In addition, when a male genitalia is inserted into the opening of the skin sheet body and used as a male urine pad, a sufficient space for holding the male genital can be secured. Excellent in stability.

  Hereinafter, the best mode for carrying out the absorbent article of the present invention will be described in more detail with reference to the drawings for each example of a male urine pad and a urine / feces pad.

[1A] Male urine pad:
First, the example at the time of using the absorbent article of this invention as a urine pad for men is demonstrated. As shown in FIGS. 1-3, the male urine pad 1a which is one embodiment of the absorbent article 1 of this invention is arrange | positioned so that the upper surface of the absorber 2 and the absorber 2 may be coat | covered, and at least A top sheet 3 partially made of a liquid permeable material, a back sheet 4 made of a liquid impervious material, disposed so as to cover the lower surface of the absorbent body 2, and disposed above the top sheet 3, And a skin surface sheet body 5 having a hook-like portion 18 that is bent in a hook shape along the longitudinal direction of the absorbent body 2. Only the longitudinal direction edge part of the absorber 2 is being fixed, and the collar part 18 of this skin surface sheet | seat body 5 is comprised so that the center part of a longitudinal direction can be expanded-contracted in a bellows shape .

  This male urine pad 1a is used for inserting a male genital into the opening 11 of the skin sheet body 5 to absorb urine.

  Here, FIG. 1 is a plan view showing an embodiment of the absorbent article of the present invention, and FIG. 2 shows a cross section of the absorbent article shown in FIG. 1 cut along the line AA ′. FIG. 3 is a schematic cross-sectional view, and FIG. 3 is a schematic cross-sectional view showing a cross section obtained by cutting the absorbent article shown in FIG. 1 along the line BB ′.

  The male urine pad 1a has a high fixing effect on the male genitalia because the male genital is grasped by the opening 11 of the skin sheet body 5, and effectively prevents the urine pad from being displaced or detached, which causes urine leakage. can do. Moreover, since the skin surface sheet body 5 is in contact with most of the wearer's skin (that is, the portion other than the male genitals inserted into the opening 11 of the skin surface sheet body 5), the skin of the wearer and the top sheet 3 is separated. Thereby, a favorable wearing feeling can be obtained.

For example, as shown in FIG. 4, the male urine pad is inserted at a substantially central portion of the length in the longitudinal direction of the male urine pad 1 a after inserting the male device 21 into the opening 11 of the skin sheet body 5. Fold it in place. By comprising in this way, the front-end | tip part of the male device 21 can be hold | gripped so that it may wrap with the male urine pad 1a, and a fixing effect can be heightened. In particular, in the male urine pad 1a, a space is easily formed between the skin sheet body 5 and the top sheet 3 by the flange-shaped portion 18 of the skin sheet body 5 that can be expanded and contracted in a bellows shape. The space for holding the container 21 (specifically, the depth in the space) can be sufficiently secured, and the wearing feeling and the stability at the time of wearing are excellent.

  As for this absorbent article, it is preferable that the opening part expansion-contraction material 12 is arrange | positioned along a part of outer edge of the opening part 11 of the skin sheet body 5, as shown in FIG.

  By comprising in this way, the opening part 11 can be expanded-contracted according to the size of a wearer's male instrument, and the effect which fixes a male instrument can further be improved. Moreover, since a favorable fixing effect can be obtained regardless of the size of the wearer's male genitals, the male genitals can be used particularly suitably for the elderly and disabled persons who often atrophy. For example, a conventional male urine pad as shown in FIG. 22 folds a sheet-like pad into a cone shape (sack shape) and fixes it with an adhesive portion, and encloses the male genitalia. In some cases, pubic hair and clothing may stick to the skin, making it extremely difficult to use.

  Further, by arranging such an opening elastic member 12, as shown in FIG. 4, the male urine pad 1a (absorbent article 1) is folded in half at a substantially central portion in the longitudinal direction. The skin sheet body 5 expands and contracts, and a space is appropriately formed between the skin sheet body 5 and the top sheet 3. For this reason, when excretion is performed from the male genitalia 21 inserted into the opening 11, urine can be temporarily stored in this space. For example, even when the amount of urine excreted at a time is large, urine Is difficult to leak to the outside.

  In addition, by arranging the opening elastic member 12 as described above, the size of the opening 11 can be adjusted by extending the both ends of the male urine pad 1a in the longitudinal direction, The tightening degree of the male device 21 can be easily adjusted.

  The male urine pad 1a is previously folded in half at a substantially central portion in the longitudinal direction. When used, the male urine pad 1a is stretched to widen both ends of the male urine pad 1a. It is preferable to be used after the first. By comprising in this way, the front-end | tip part of the male genitalia 21 can be hold | gripped favorably so that it may wrap with the male urine pad 1a, and a fixing effect can be heightened further.

  Here, FIG. 4 is explanatory drawing which shows the wearing condition at the time of using the absorbent article shown in FIG. 1 as a male urine pad.

While the saddle-shaped part of the skin sheet body constituting the absorbent article is joined in a folded state, both ends in the longitudinal direction of the saddle-shaped part, the central part in the longitudinal direction of the saddle-shaped part is It is not joined in the folded state. With this structure, the central portion in the longitudinal direction of the bowl-shaped portion can be freely expanded and contracted in a bellows shape . By comprising in this way, a hook-shaped part can be expanded- contracted freely, and the space between a skin surface sheet | seat body and a top sheet can be made into an appropriate magnitude | size.

  In addition, the bonding part in the above-described hook-shaped part may be bonded by using a hot melt adhesive or other highly fluid adhesive, for example, heat or ultrasonic waves including heat sealing. What was welded by etc. may be sufficient.

Further, as shown in FIGS. 5 and 6, the male urine pad 1 a has a skin sheet body 5 in which both side edges 63 (63 a, 63 b) of the top sheet 3 and both end portions 32 in the longitudinal direction ( 32a, 32b) , and a bag-like space 33 is preferably formed between the skin sheet body 5 and the top sheet 3. By configuring in this way, urine is held in the bag-shaped space 33 described above, so that, for example, even when the amount of urine excreted at a time is large, urine does not leak to the outside. .

  Here, FIG. 5 is a plan view showing another embodiment of the absorbent article of the present invention, and FIG. 6 shows a cross section of the absorbent article shown in FIG. 5 cut along the line CC ′. It is a schematic sectional drawing. In addition, although there is no restriction | limiting in particular about the joining method of the skin sheet body 5 and the top sheet 3, For example, the conventionally well-known joining method by heat | fever including a heat seal, an ultrasonic wave, etc. can be used suitably.

  Further, in the male urine pad of the present embodiment, as shown in FIG. 7, the skin sheet body 5 and the top sheet 3 are part of the longitudinal end 32 (32a, 32b) side of the opening 11. May be joined. In addition, the code | symbol 17 shows the junction part of a skin surface sheet body and a top sheet. Since the urine excreted by the wearer passes through the top sheet 3 and is absorbed and held by the absorbent body 2, if the skin sheet body 5 and the top sheet 3 are too far apart, the urine moves over the top sheet 3. It may become difficult to permeate, and as a result, the speed absorbed by the absorber 2 may be slow. By comprising in this way, urine can be absorbed favorably, ensuring the space which inserts a male genitalia. In addition, there is no restriction | limiting in particular about the method of joining the skin sheet body 5 and the top sheet 3, For example, the conventionally well-known joining method by heat | fever including a heat seal, an ultrasonic wave, etc. can be used suitably. Here, FIG. 7 is a plan view showing another embodiment of the absorbent article of the present invention.

  In FIG. 7, the skin sheet body 5 and the top sheet 3 are joined in a stripe shape in the longitudinal direction of the absorbent article 1 (the direction from the opening portion 11 toward the end portion 32) to form the joint portion 17. However, it is not limited to this shape. For example, although not shown, the absorbent article may be joined in a stripe shape from one side edge to the other side edge, or may be joined in a dot shape with a predetermined interval. .

Moreover, as shown in FIGS. 1-3, the side surface flap which is the part by which the skin surface sheet | seat body 5 was extended to the side from the both-sides edge 63 (63a, 63b) of the top sheet 3 among the back sheets 4 is used. It is preferable that the top sheet 3 is folded back.

  Of course, as shown in FIGS. 8 and 9, the skin sheet body 55 is configured by a member different from the back sheet 4 and the top sheet 3, and the skin sheet body 55 is disposed above the top sheet 3. It may be arranged. In addition, such a skin sheet body 55 as another member is fixed by being joined to the side edges of the top sheet 3 and the back sheet 4. The method of joining the skin sheet body 55 is not particularly limited, and examples thereof include a method using heat bonding such as an adhesive, heat sealing, and ultrasonic sealing.

  Here, FIG. 8 is a plan view showing still another embodiment of the absorbent article of the present invention, and FIG. 9 is a sectional view of the absorbent article shown in FIG. 8 cut along the line DD ′. It is a schematic sectional drawing shown.

As the skin sheet body 5 of the absorbent article 1 as shown in FIGS. 1 to 3, for example, as shown in FIGS. 10A, 10 </ b> B, and 10 </ b> C, both side edges 63 of the top sheet 3 in the backsheet 4. (63a, 63b) The side flaps 5a, 5b as the skin sheet precursor , which are portions extending laterally from the side sheets, are folded back above the top sheet 3, and the portions where the side flaps 5a, 5b overlap each other. The skin sheet body 5 (refer FIG. 1) formed by joining can be mentioned.

When the skin sheet body 5 is configured in this way, first, the side flaps 5a and 5b are folded and folded in a hook shape to form the hook-shaped portion 18 (FIG. 10B). The side flaps 5a and 5b in which the shape-shaped portion 18 is formed are folded back above the top sheet 3 (FIG. 10C), and a portion where the folded side flaps 5a and 5b do not partially overlap each other is provided. The opening 11 of the face sheet body 5 is formed.

  The male urine pad 1a configured in this manner has a simple structure and is excellent in productivity. Furthermore, since it can be produced by applying an existing production line for producing conventional tape-type diapers and the like, it is excellent in terms of equipment cost. Here, FIG. 10A, FIG. 10B, and FIG. 10C are top views which show the state which expanded one Embodiment of the absorbent article of this invention.

  In addition, in FIG. 1, the hook-shaped part 18 of the skin surface sheet | seat body 5 shows the example at the time of each being formed between each side edge of the skin surface sheet | seat body 5, and the opening part 11 one by one. However, for example, as shown in FIG. 11, two or more hook-shaped portions 18 may be formed between each side edge of the skin sheet body 5 and the opening 11. Here, FIG. 11 is a plan view showing another embodiment of the absorbent article of the present invention.

  Moreover, although it does not specifically limit, the length of the part currently bent in the bowl shape in the bowl-shaped part of a skin surface sheet body is 5-300 with respect to the length of the width direction of an absorbent article. %, And a length corresponding to 20 to 150% is more preferable. By configuring in this way, the space can be sufficiently secured.

  Moreover, when arrange | positioning two or more hook-shaped parts, each hook-shaped part may overlap and it does not need to overlap. In addition, when too many ridge-shaped parts are piled up, since a thickness will come out to the skin sheet body and the sheet | seat itself will also become hard, a feeling of wear may fall.

  As shown in FIGS. 1 to 3, this male urine pad 1 a has at least a pair of three-dimensional gathers 13 (13 a, 13 b) formed on the upper surface of the top sheet 3 below the skin sheet 5. Is preferred. By comprising in this way, the side leakage of the urine which the wearer excreted can be prevented effectively.

  As shown in FIGS. 12 and 13, at least a pair of three-dimensional gathers 14 (14 a, 14 b) may be formed on the surface of the skin sheet body 5 that faces the top sheet 3. Such a three-dimensional gather 14 can have a function as a check valve for the opening 11 of the skin sheet body 5, and can effectively prevent urine backflow from the opening 11.

  Such a three-dimensional gather 14 may be an inversion gather that tilts toward the inside of the opening 11, but the absorbent article 1 can effectively prevent backflow of urine from the opening 11. It is preferable that the outer gathers are inclined toward the outside (specifically, the outside of the opening portion of the opening 11). Here, FIG. 12 is a plan view showing another embodiment of the absorbent article of the present invention, and FIG. 13 shows a cross section of the absorbent article shown in FIG. 12 cut along the line EE ′. It is a schematic sectional drawing.

  Moreover, in the male urine pad of this embodiment, as shown in FIG. 14, the end elastic member 15 is provided on at least one end 32 side in the longitudinal direction of the male urine pad 1a (absorbent article 1). It is preferable that they are arranged. By disposing the end elastic member 15 in this way, at least one end 32 side in the longitudinal direction of the male urine pad 1a can be contracted. By positioning the end elastic member 15 on the wearer's crotch side, the male urine pad can be easily fitted to the wearer's body and the wearing feeling can be further improved. . Here, FIG. 14 is a plan view showing another embodiment of the absorbent article of the present invention.

The male urine pad 1a shown in FIGS. 1 to 3 is a skin sheet body that is a portion (side flap) extending laterally from both side edges 63 (63a, 63b) of the top sheet 3 of the back sheet 4. 5 is configured to be folded back above the top sheet 3 outside the side edge of the absorbent body 2. For example, in the male urine pad 1a of the present embodiment, as shown in FIGS. 15 and 16, the skin sheet body 5 is folded over the top sheet 3 together with a part including the side edge of the absorbent body 2. It may be configured.

  With this configuration, a part of the folded absorbent body 2 serves as a leak-proof wall, and the lateral leakage of urine excreted by the wearer can be achieved without arranging the three-dimensional gather 13 as shown in FIG. Can be effectively prevented. Here, FIG. 15 is a plan view showing another embodiment of the absorbent article of the present invention, and FIG. 16 shows a cross section of the absorbent article shown in FIG. 15 cut along the line FF ′. It is a schematic sectional drawing.

[1B] Urine pad:
Next, an example in which the absorbent article of the present invention is used as a urine / feces pad will be described. As shown in FIGS. 1 to 3, a urine / feces pad 1 b which is another embodiment of the absorbent article 1 of the present invention is disposed so as to cover the absorber 2 and the upper surface of the absorber 2, and at least A top sheet 3 that is partially made of a liquid permeable material, a back sheet 4 that is arranged to cover the lower surface of the absorber 2, and a skin surface that is arranged above the top sheet 3. The skin surface sheet body is provided with an opening 11 through which feces can pass, and is folded and folded along a folding line along the longitudinal direction of the absorbent body 2. A hook-shaped portion 13 whose portion can be expanded and contracted in a bellows shape is formed.

  This urine / feces pad 1b is used in the vicinity of the crotch of clothing or a diaper and absorbs and holds the stool and urine of the wearer to prevent leakage to the outside of the clothing or diaper. be able to. The urine / feces pad 1b of the present embodiment is different from the male urine pad 1a of the embodiment of the present invention described so far only in the method of use, and the configuration of the pad itself is the same. is there.

  Conventional urine / feces pads are made of a rough material on the top sheet in order to form a space for storing stool by providing a dent in the absorber and to prevent diffusion of stool excreted by the wearer. However, in reality, most of the stool remains on the top sheet, and the stool adheres to the wearer's crotch and buttocks. For this reason, in the case of replacement at the time of defecation, a cumbersome wiping operation is required, which increases the burden of childcare and care, and also causes a skin trouble for the wearer.

  In the urine / feces pad 1b of the present embodiment, the feces excreted by the wearer pass through the opening 11 and fall on the top sheet 3, and the feces and the wearer's skin are in direct contact with each other. It becomes possible to greatly reduce. In addition, since the skin sheet body 5 is first in contact with the wearer's skin, the top sheet 3 disposed below the skin sheet body 5 is difficult to directly contact the wearer's skin. That is, the wearer's skin and the top sheet 3 are separated. Furthermore, a shielding layer called a skin surface sheet 5 is interposed between the top sheet 3 and the skin of the wearer.

  Therefore, even if the stool remains on the top sheet 3, it has the effect of greatly reducing the chance that the stool and the skin of the wearer are in direct contact. For this reason, it is difficult for stool to adhere to the wearer's crotch and buttocks, so that troubles such as wiping work can be reduced and skin troubles of the wearer can be effectively prevented. In particular, the urine / feces pad 1b according to the present embodiment can cope with any stool satisfactorily without using stool properties such as watery stool, mud stool, and solid stool.

  Of course, the urine / feces pad 1b of the present embodiment can not only hold the stool of the wearer on the top sheet 3, but also can absorb and hold the urine excreted by the wearer by the absorbent body 2. For example, by using a skin surface sheet body having a urine permeable region that can transmit urine, the urine excreted by the wearer is transmitted through the urine permeable region and the top sheet of the skin surface sheet body, and the absorbent body. Can be absorbed and retained. The urine absorbed and retained by the absorber is prevented from leaking to the outside by the back sheet having excellent leakage prevention properties.

  Such a urine permeable region may be separately formed with an opening through which urine can permeate the skin sheet body, or a part of the skin sheet body is formed of a liquid permeable material. It is good also considering the site | part formed by urine permeation | transmission area | region.

  In the urine / feces pad 1b, it is preferable that the opening stretchable material 12 is disposed along a part of the outer edge of the opening 11 of the skin sheet body 5. With this configuration, as shown in FIG. 17, the skin sheet body 5 expands and contracts, so that a substantially central portion (specifically, the length in the longitudinal direction of the urine / feces pad 1 b (absorbent article 1)). (The portion where the opening 11 is formed) is folded in half, and the opening 11 is greatly expanded. For this reason, it becomes easy to let the feces pass through the opening 11.

Moreover, since a space is formed between the skin sheet body 5 and the top sheet 3, a space for temporarily storing the wearer's stool can be formed. For example, the amount of stool excreted at a time Even when there are many, stool can be held well in this space. In particular, the skin surface sheet body 5 has a hook-shaped portion that is bent in a bowl shape and can be expanded and contracted in a bellows-like shape, so that a sufficiently large space can be secured.

  Here, FIG. 17 is a perspective view showing a state where the absorbent article shown in FIG. 1 is bent at a substantially central portion of the length in the longitudinal direction.

  In the urine / feces pad 1b of the present embodiment, the urine / feces pad 1b is folded in advance at a substantially central portion of the length in the longitudinal direction. It is preferably used after being stretched so as to spread. By comprising in this way, the space between the above-mentioned skin surface sheet | seat body 5 and the top sheet 3 can be formed favorably.

In addition, the ridge-like portion of the skin sheet body constituting the urine / feces pad is joined in a state in which both ends in the longitudinal direction of the ridge-like portion are folded in the same manner as the urine pad for men described above. On the other hand, the central part in the longitudinal direction of the bowl-shaped part is not joined in a folded state. With this structure, the central portion in the longitudinal direction of the bowl-shaped portion is configured to be stretchable in a bellows shape .

Furthermore, as shown in FIG.5 and FIG.6, the skin sheet | seat body 5 is joined in both the side edges 63 (63a, 63b) of the top sheet 4, and the edge part 32 (32a, 32b) of the longitudinal direction. It is preferable that a bag-like space 33 is formed between the skin sheet body 5 and the top sheet 3.

  By configuring in this way, since excrement (stool and urine) is held in the bag-shaped space 33 described above, for example, even when the amount of excretion excreted at a time is large, There is no leakage to the outside. In addition, the amount of stool adhering to the wearer can be reduced. Furthermore, when exchanging the urine / feces pad 1b, the excrement is prevented from flowing out and spilled over, so that bedding such as clothes and sheets is not soiled.

Further, in the urine / feces pad 1b, the skin sheet body 5 extends laterally from both side edges 63 (63a, 63b) of the top sheet 3 in the back sheet 4 in the same manner as the male urine pad 1a described above. As shown in FIG. 8 and FIG. 9, the skin sheet body 55 is formed by folding the protruding portion (side flap) above the top sheet 3, or the back sheet 4 or the top sheet 3. And the skin sheet body 55 is disposed above the top sheet 3 .

  The urine / feces pad configured in this manner has a simple structure and is excellent in productivity. Furthermore, since it can be produced by applying an existing production line for producing conventional tape-type diapers and the like, it is excellent in terms of equipment cost.

  As shown in FIGS. 1 to 3, it is preferable that at least a pair of three-dimensional gathers 13 is formed on the upper surface of the top sheet 3 below the skin sheet 5. By comprising in this way, the side leakage of the excretion (especially urine) which the wearer excreted can be prevented effectively.

  Moreover, as shown in FIG.12 and FIG.13, at least one pair of the three-dimensional gathers 14 may be formed in the surface facing the top sheet 3 of the skin surface sheet body 5. FIG. Such a three-dimensional gather 14 can have a function as a check valve for the opening 11 of the skin sheet body 5 and effectively prevent the backflow of excrement such as urine and watery stool from the opening 11. can do. Such a three-dimensional gather 14 may be an inversion gather that tilts toward the inside of the opening 11, but the absorbent article can effectively prevent the backflow of excrement from the opening 11. It is preferable that the outer gather is inclined toward the outside of 1 (specifically, the outside of the opening portion 11 of the opening 11).

  Further, in the urine / feces pad 1b of the present embodiment, as shown in FIG. 7, the skin sheet body 5 and the top sheet 3 are joined at a part of the longitudinal end 32 side of the opening 11. May be. In addition, there is no restriction | limiting in particular about the method of joining the skin sheet body 5 and the top sheet 3, For example, the conventionally well-known joining method by heat | fever including a heat seal, an ultrasonic wave, etc. can be used suitably.

  For example, as shown in FIGS. 15 and 16, in the urine / feces pad of the present embodiment, the skin sheet body 5 that is integrally extended from the back sheet 4 to the side thereof has the side edge of the absorbent body 2. It may be configured to be folded back above the top sheet 3 together with the part to be included. With this configuration, a part of the folded absorbent body 2 serves as a leak-proof wall, and the lateral leakage of urine excreted by the wearer can be achieved without arranging the three-dimensional gather 13 as shown in FIG. Can be effectively prevented. Moreover, since a thickness difference is produced by folding together with a part including the side edge of the absorbent body 2, there is an effect that it is easy to secure a space for holding excreted stool.

  Hereinafter, each component which comprises the absorbent article of this invention is demonstrated more concretely.

[1-1] Skin sheet body:
The skin sheet body is a sheet body for separating the wearer's skin and the top sheet. The skin sheet body is disposed above the top sheet and includes an opening through which stool can pass and an opening through which male genitalia can be inserted. At least one is formed. And this skin surface sheet body is formed such that a saddle-like portion folded back and folded along the longitudinal direction of the absorbent body is formed, and the central portion in the longitudinal direction of the saddle-like portion can be expanded and contracted in a bellows shape. Has been. By providing such a skin sheet body, the skin sheet body first comes into contact with the wearer's skin, so the top sheet placed below the skin sheet body is in direct contact with the wearer's skin. It becomes difficult. That is, the wearer's skin and the top sheet are separated from each other. Moreover, the shielding layer called a skin surface sheet | seat body will also interpose between a top sheet and a wearer's skin.

  As a material which comprises a skin surface sheet body, the nonwoven fabric, mesh sheet | seat, film, etc. which consist of resin, such as polyethylene, a polypropylene, and polyester, can be used, for example.

  When the absorbent article of the present invention is used as a male urine pad, it is preferable to use a nonwoven fabric in terms of good touch. Further, when used as a male urine pad, the skin sheet body is constructed so that excreted urine does not permeate in order to perform excretion with the male genitalia inserted into the opening of the skin sheet body. It is preferable. For this reason, the area | region in which the opening part of the skin surface sheet body is formed consists of a water-repellent material or a liquid-impermeable material (a water-repellent nonwoven fabric or a bonded product of a water-repellent nonwoven fabric and a liquid-impervious film). It is preferable. In particular, a water-repellent material (such as a water-repellent nonwoven fabric) is preferable in that it can maintain a light touch (dryness) even when worn for a long time.

  Moreover, when using the absorbent article of this invention as a urine pad, it is preferable to use a nonwoven fabric in the point that the touch is favorable. These materials may be liquid permeable, liquid impermeable, or water repellent. However, at least the surrounding area where the opening is formed is a water-repellent material (water-repellent non-woven fabric, etc.) in that it can maintain a light touch (dryness) even when worn for a long time. It is preferable that it consists of. When used as a urine / feces pad, a liquid-permeable material may be used for a part of the skin sheet body to form a urine permeable region through which urine can permeate.

As shown in FIG. 10A, the skin sheet body includes side flaps 5 a and 5 b which are portions extending laterally from both side edges 63 (63 a and 63 b) of the top sheet 3 in the back sheet 4. 8 and FIG. 9, for example, the sheet body in which the opening 11 is formed is separately disposed above the top sheet 2 as shown in FIG. 8 and FIG. 9. You can also.

  Although there is no restriction | limiting in particular about the shape of the opening part of a skin surface sheet body, According to the use, it can select suitably. For example, when used as a male urine pad, a shape that allows a male genitalia to be inserted and held well, for example, so-called openings (holes such as circular openings, elliptical openings, rhombus openings) ). In addition, when used as a urine / feces pad, when excreted by being placed near the crotch part of clothing or diapers, the excreted feces can be passed well, for example, a circular opening In addition to so-called openings (holes) such as circular, elliptical, and diamond-shaped openings, linear slits, cross-shaped slits, slits such as star-shaped slits that intersect three or more slits, and the like can be given. .

In addition, in the case where the skin sheet body is a portion (side flap) that extends laterally from both side edges of the top sheet of the back sheet , in the side flaps 5a and 5b , as shown in FIG. A notch 46 corresponding to a part of the shape of the opening 11 (see FIG. 1) is formed, and when the side flaps 5a and 5b are folded back above the top sheet 3, the notch 46 is formed. Thus, the opening 11 (see FIG. 1) may be formed.

  When the absorbent article of the present invention is used as a urine / feces pad, a urine passage opening may be separately formed in the skin sheet body as a urine permeable region through which urine can permeate. By forming the urine passage opening, the urine excreted by the wearer through the opening can be reliably introduced into the space between the skin sheet body and the top sheet. The urine passage opening is preferably formed in a portion closer to the wearer's front body than the opening through which stool can pass.

  Moreover, in the absorbent article of this invention, as above-mentioned, you may arrange | position an opening part expansion-contraction material along a part of outer edge of the opening part of a skin surface sheet body.

  As the opening stretchable material, stretchable materials that have been used in conventional disposable diapers can be suitably used. Specific examples include elastic rubber, elastic film, elastic foam (urethane foam, etc.), etc., as well as thread rubber and flat rubber made of elastic materials such as natural rubber and synthetic rubber (urethane rubber, etc.). .

  The arrangement pattern of the opening stretchable material is not particularly limited as long as it is a pattern that can exhibit the above-described effect, but is preferably arranged in a pattern that can reliably exert a stretching force on the opening. For example, as shown in FIG. 1, the opening stretchable material may be arranged linearly along a part of the outer edge of the opening. For example, as shown in FIG. 18, the outer edge of the opening 11 is surrounded. As described above, the opening stretchable material 12 may be disposed. Moreover, although illustration is abbreviate | omitted, you may arrange | position an opening expansion-contraction material by patterns, such as circular, an ellipse, and a rhombus, for example. Here, FIG. 18 is a plan view showing another embodiment of the absorbent article of the present invention.

In the case where the skin sheet is formed by folding the side flaps above the top sheet, it is preferable not to arrange the above-described opening stretchable material at the portion where the left and right side flaps overlap. In the part where a side flap overlaps, since the thickness of a skin surface sheet | seat body becomes thick, the expansion / contraction force of an opening part expansion material may become difficult to act.

  The opening stretchable material is fixed to the skin sheet by an adhesive or other means. The fixing method may be, for example, adhesion using a hot melt adhesive or other highly fluid adhesive, or may be welding by heat such as heat sealing or ultrasonic waves.

  The opening stretchable material is preferably fixed in an expanded state in order to cause a sufficient stretching force to act on the opening. For example, when the opening stretchable material is natural rubber or synthetic rubber, it is preferably fixed in a stretched state of 120 to 400%, and more preferably fixed in a stretched state of 200 to 300%. By fixing in the extended state in such a range, it is possible to cause a sufficient stretching force to act on the skin sheet body and to prevent the opening from being reduced more than necessary.

  The arrangement method of the opening stretchable material is not particularly limited. For example, the skin sheet is formed by bonding two sheet materials (upper sheet and liner sheet), and the opening is formed between the upper sheet and the liner sheet. It is preferable to arrange so as to sandwich the elastic material. Employing such an arrangement method is preferable because a stretching force can be imparted to the skin sheet body with the minimum necessary stretching material.

  Even in the case of adopting the configuration as described above, the skin surface sheet body is sufficient if the portion on which the opening stretchable material is disposed is composed of two sheet materials, and the entire skin sheet body is not necessarily provided. It is not necessary to be constituted by two sheet materials. For example, the portion where the opening stretchable material is disposed may be constituted by two sheet materials, and the other portion may be constituted by one sheet material.

[1-2] Absorber:
The absorber is a member for absorbing and holding the wearer's urine. The absorber is made of an absorbent material because it needs to absorb and retain the wearer's urine and body fluid.

  Examples of the absorbent material constituting the absorber include conventionally known absorbent materials usually used for disposable diapers and other absorbent articles, such as fluff pulp, super absorbent polymer (Super Absorbent Polymer; hereinafter referred to as “SAP”). And a hydrophilic sheet. It is possible to use wood pulp or non-wood pulp defibrated as fluff pulp, sodium polyacrylate as SAP, tissue, absorbent paper, hydrophilized nonwoven fabric as hydrophilic sheet preferable. Moreover, as a countermeasure against the loss of shape of the absorbent body, synthetic fibers such as heat-sealing fibers may be included.

  These absorbent materials are usually used as a single-layer or multi-layer mat. Under the present circumstances, 1 type may be used independently among the said absorptive materials, and 2 or more types may be used together. Especially, what used together about 10-500 mass parts SAP with respect to 100 mass parts of fluff pulp is preferable. At this time, the SAP may be uniformly mixed in each mat of fluff pulp, or may be arranged in layers between the layers of the multilayer fluff pulp.

  It is preferable that the absorber is interposed at least in part between the top sheet and the back sheet. Usually, the absorber is interposed between the top sheet and the back sheet by being sandwiched between the top sheet and the back sheet and sealing the peripheral edge thereof. Therefore, the flap part in which the absorber is not interposed is formed between the top sheet and the back sheet at the peripheral part of the absorber.

  It is preferable that the absorber is entirely wrapped with a hydrophilic sheet. Such a configuration has an advantage that SAP can be prevented from leaking from the absorber and shape stability can be imparted to the absorber.

  Although there is no restriction | limiting in particular about the shape of an absorber, The shape used in the conventional disposable diaper and other absorbent articles, for example, a rectangular shape, an hourglass type, a gourd type, a T shape etc. can be mentioned. The absorbent article 1 shown in FIG. 1 is an example in which an hourglass-type absorber is used as the absorber 2. Such an hourglass-shaped absorbent body is easy to form a space between the skin sheet body and the top sheet when used by being folded in half at the substantially central portion of the longitudinal length of the absorbent article. It can be used suitably.

  Further, for example, as shown in FIG. 14, when the end stretchable material 15 is disposed on at least one end 32 side in the longitudinal direction of the absorbent article 1, the absorbent having the end stretchable material 15 disposed. As shown in FIG. 19, notches may be formed in the corners of the absorbent body 2 such as a rectangular shape or an hourglass shape so that the end portion side of the article 1 is easily contracted (in FIG. 19, an hourglass shape). A notch is formed in a corner at one end of the absorbent body 2).

  In addition, a sheet (second sheet) for diffusing a liquid such as urine or body fluid may be incidentally disposed on the upper surface side of the absorber (for example, between the absorber and the top sheet). . If this second sheet is attached, the absorption rate of urine, body fluids, etc. is unlikely to decrease even when there is a large amount of urination or when there is more urine absorbed by the absorbent body due to multiple urinations. It is possible to prevent leakage of urine, body fluid, and the like due to a decrease in absorption rate.

  Examples of the material constituting the second sheet include hydrophilic and liquid-permeable materials such as woven fabric, non-woven fabric, porous plastic, and fluff pulp. Examples of these constituent materials include polypropylene, polyethylene, polyester, rayon, pulp, and composite fibers thereof. As the pulp, crimped fibers such as curly cellulose fibers can be suitably used.

[1-3] Top sheet:
A top sheet is a sheet | seat arrange | positioned so that the upper surface (surface located in a wearer's skin side, when an absorbent article is mounted | worn) may be coat | covered. At least a part (all or a part) of the top sheet is made of a liquid-permeable material because the absorber disposed on the lower surface side needs to absorb the wearer's urine. Usually, at least near the upper surface of the absorbent body, it is made of a liquid-permeable material capable of transmitting the wearer's urine and body fluid. As long as at least a part is made of the liquid permeable material, the entire top sheet is not necessarily made of the liquid permeable material.

  Examples of the liquid permeable material constituting the top sheet include a woven fabric, a nonwoven fabric, and a porous film. Among these, it is preferable to use a non-woven fabric made of a thermoplastic resin such as polypropylene, polyethylene, polyester, or nylon and subjected to a hydrophilic treatment. There is no restriction | limiting in particular also about the kind of nonwoven fabric, The conventionally well-known nonwoven fabric manufactured by various manufacturing methods, such as air through (card hot air), card | curd embossing, and a spun bond, can be used suitably. The top sheet may be composed of a single sheet material, but may be composed of a plurality of sheet materials.

[1-4] Backsheet:
The back sheet is a sheet that is disposed so as to cover the lower surface of the absorbent body (the surface located on the clothing side of the wearer when the absorbent article is mounted). The back sheet is made of a liquid-impermeable material because it is necessary to prevent the wearer's urine from leaking outside the absorbent article. Further, for example, the back sheet and the skin sheet body may be constituted by an integral sheet.

  Examples of the liquid-impermeable material constituting the backsheet include a liquid-impermeable film made of a resin such as polyethylene. Among these, a microporous polyethylene film is preferably used. This microporous polyethylene film has a large number of fine pores of 0.1 to several μm, and is liquid-impermeable but has moisture permeability, so it is possible to prevent stuffiness inside the absorbent article. There is an advantage that you can.

  A sheet material (cover sheet) may be bonded to the back sheet on the lower surface (outer surface) side. This cover sheet is used to reinforce the back sheet and improve the feel (tactile feeling) of the back sheet.

  Examples of the material constituting the cover sheet include woven fabric and non-woven fabric. Among these, it is preferable to use a nonwoven fabric made of a thermoplastic resin. There is no restriction | limiting in particular also about the kind of nonwoven fabric, The conventionally well-known nonwoven fabric manufactured by various manufacturing methods, such as air through (card hot air), card | curd embossing, and a spun bond, can be used suitably.

  Moreover, as shown in FIG. 20, you may have the fixing means 16 for fixing to the clothes or a diaper in the lower surface of the back seat | sheet 4. As shown in FIG. Examples of such fixing means 16 include an adhesive tape and a mechanical fastener. By further including such a fixing means 16, the absorbent article 1 of the present invention can be fixed to the inner surface of clothes, diapers, etc., and displacement of the absorbent article 1 can be effectively prevented. it can. Here, FIG. 20 is a plan view showing another embodiment of the absorbent article of the present invention.

  The above-mentioned “mechanical fastener (also referred to as a surface fastener)” is a surface fastener that uses mechanical coupling, and for example, a large number of protrusions (such as a hook, mushroom, and hook) are formed on the surface. A combination of the projected member (hook member) and a recess member (loop member) having loop-like fibers arranged on the surface is often used. In this fastener, the hook material is overlapped on the surface of the loop material, and a large number of protrusions of the hook material are engaged with the surface of the loop material, so that both members can be firmly attached and detached. Is. Since the hook material of the mechanical fastener can be engaged with a material having a fibrous surface such as woven fabric, non-woven fabric, felt, and pile in addition to the loop material of the mechanical fastener corresponding thereto, the fiber It can be fixed by being engaged with clothing or a diaper made of a material having a shaped surface.

  With regard to the size and position of such fixing means, the absorbent article can be fixed to the inner surface of clothes, diapers, etc., and a binding force that does not cause displacement of the absorbent article can be obtained. For example, the fixing means may be disposed on the entire lower surface of the back sheet, or a part of the lower surface of the back sheet (for example, in FIG. 20, the end side in the longitudinal direction of the absorbent article). You may arrange in two places.

[1-5] Solid gather:
The three-dimensional gather is a member for preventing side leakage of the urine excreted by the wearer, and is a leak-proof wall configured to stand up three-dimensionally. In the absorbent article of the present invention, at least one pair of three-dimensional gathers may be formed on the top surface of the top sheet below the skin sheet, and three-dimensional gathers may be formed on the surface facing the top sheet of the skin sheet body. At least one pair may be formed.

  When at least a pair of solid gathers are formed on the top surface of the top sheet, even if urine diffuses along the top sheet surface, the solid gathers serve as a breakwater, effectively urinating leakage to the outside. Can be prevented.

  When at least one pair of three-dimensional gathers are formed on the surface of the skin sheet body that faces the top sheet, the three-dimensional gather serves as a check valve for the opening of the skin sheet body. The backflow of excrement can be effectively prevented.

  The structure of these three-dimensional gathers can employ | adopt the structure used for the conventional disposable diaper and other absorbent articles. For example, it is possible to suitably use a material in which a stretchable material (a three-dimensional gathered stretchable material) is arranged on a part of the sheet material, and a gather is formed on the sheet material by the three-dimensional gathered stretchable material.

  As the sheet material constituting the three-dimensional gather, it is preferable to use a water-repellent material from the viewpoint of improving the leak-proof property of the three-dimensional gather. Non-woven fabrics such as spunbond and card embossing may be used as the water-repellent material, but SMS (spunbond / meltblown / spunbond) and SMMS (spunbond / meltblown / meltblown / spun) are used because of their high water pressure resistance. It is preferable to use a non-woven fabric such as a bond.

  In such a three-dimensional gather, a sheet material completely different from the top sheet and the back sheet constituting the absorbent article is bonded to both side edges of the top sheet and the surface facing the top sheet of the skin sheet body. Can be formed. In addition, for example, a three-dimensional gather can be formed by folding back a part of a top sheet or a back sheet constituting the absorbent article.

  As the three-dimensional gather stretchable material, the same stretchable material as the already described opening stretchable material can be used. One or more three-dimensional gather elastic materials may be arranged for one three-dimensional gather. There is no particular limitation on the arrangement position. For example, it may be arranged in the vicinity of the lower end edge (standing line) of the three-dimensional gather, or between the upper end edge and the lower end edge (standing line) of the three-dimensional gather, but is preferably arranged in the vicinity of the upper end edge of the three-dimensional gather. .

  For example, in the absorbent article 1 shown in FIG. 2, an example is shown in which a pair of three-dimensional gathers 13 a and 13 b are arranged on the top surface of the top sheet 3. The three-dimensional gathers 13a and 13b are formed by folding the end portions of the sheet material constituting the three-dimensional gathers (the end portions corresponding to the upper end edges 34 of the three-dimensional gathers 13a and 13b), 36 is arranged so as to sandwich it. Moreover, in FIG. 13, the example by which a pair of solid gathers 14a and 14b are arrange | positioned in the surface facing the top sheet 3 of the skin sheet body 5 is shown. In addition, this solid gather 14 can use what was comprised similarly to the solid gather 13 used for the absorbent article 1 shown in FIG.

  The height of the three-dimensional gather (length from the lower end edge to the upper end edge) is preferably 5 to 80 mm, and more preferably 10 to 40 mm. In addition to being able to ensure a sufficient leak-proof effect by setting it to 5 mm or more, by preventing the problem that the three-dimensional gather covers the top surface of the top sheet and impedes the absorption effect by setting it to 80 mm or less Can do.

  The types of three-dimensional gathers are: (1) Inverted gathers that tilt toward the inner side of the absorbent article, (2) Outer gathers that tilt toward the outer side of the absorbent article, and (3) Part of the height direction In addition, a three-dimensional gather (such as a C-fold gather or a Z-fold gather) having a bent portion or a folded portion may be used. For example, when a pair of three-dimensional gathers 13a and 13b is arranged on the top surface of the top sheet 3 as shown in FIG. On the other hand, when a pair of three-dimensional gathers 14a and 14b as shown in FIG. 13 are arranged on the surface of the skin sheet member 5 facing the top sheet 3, the urine backflow from the opening 11 is effectively prevented. In order to be able to do it, it is preferable that it is an overturn gather.

  In addition, in the disposable diaper of this invention, although at least one pair of solid gathers is required, two or more pairs may be formed.

[2] Manufacturing method of absorbent article:
Next, an embodiment of a method for producing an absorbent article of the present invention will be specifically described with reference to the drawings. The absorbent article manufacturing method of the present invention includes an absorbent body 2 as shown in FIG. 1, and a topsheet 3 that is arranged so as to cover the upper surface of the absorbent body 2 and at least a part thereof is made of a liquid-permeable material. The skin sheet body 5 includes a back sheet 4 that is disposed so as to cover the lower surface of the absorbent body 2 and is made of a liquid-impermeable material, and a skin sheet body 5 that is disposed above the top sheet 3. Is formed by side flaps 5a and 5b which are portions extending from the both side edges of the top sheet 3 to the side of the back sheet 4, and the skin sheet body 5 has openings and men that allow stool to pass through. At least one of the openings 11 into which the container can be inserted is formed, and the regions on both side edges of the region where the openings 11 in the skin sheet body are formed are folded lines along the longitudinal direction of the absorbent body 2 Side flaps 5a and 5b At least two end portions in the longitudinal direction of the hook-shaped portion 18 are joined in a folded state, while the center of the longitudinal direction in the hook-shaped portion 18 is joined. The portions are not joined in a folded state, and the central portion in the longitudinal direction of the bowl-shaped portion 18 is configured to be stretchable in a bellows shape, and is used for excrement absorption by being attached to clothing or a diaper. This is a manufacturing method of the absorbent article 1.

More specifically, as shown in FIG. 21, first, a skin sheet precursor 45 in which a cutout portion 46 that becomes the opening 11 (see FIG. 1) of the skin sheet body 5 (see FIG. 1) is formed. Is obtained on both side edges (FIG. 21A). Such a skin sheet precursor 45 can be formed as a side flap that is a portion of the back sheet 44 that extends laterally from both side edges of the top sheet 43 . Under the present circumstances, you may arrange | position the opening expansion-contraction material 12 as shown in FIG.

  Next, the absorber 42 is disposed on the upper surface of the back sheet 44 obtained in this manner, and the top sheet 43 is disposed so as to cover the upper surface of the absorber 42 disposed on the upper surface of the back sheet 44 (FIG. (B) in 21). At this time, a three-dimensional gather may be arranged on the back sheet 44 or the skin sheet precursor 45 as necessary.

Next, the skin sheet precursor 45 extended from both side edges of the back sheet 44 is folded at least twice by a folding line along the longitudinal direction so that the fold is parallel to the longitudinal direction of the absorbent body . A cut-out portion is formed by forming a skin-like portion 18, folding the skin sheet precursor 45 on which the flange-like portion 18 is formed above the top sheet 43, and joining the overlapping portions of the skin surface sheet precursor 45. The skin surface sheet 5 in which the opening part 11 which consists of 46 was formed is formed ((c) figure and (d) figure in FIG. 21). By comprising in this way, the absorbent article 1 provided with the absorber 2, the top sheet 3, the back sheet 4, and the skin sheet body 5 as shown in FIG. 1 can be manufactured.

  Such a manufacturing method of an absorbent article can manufacture the above-described absorbent article of the present invention simply and at low cost. In particular, since it can be produced by applying an existing production line for producing conventional tape-type diapers and the like, it is excellent in terms of equipment cost.

The manufacturing method of the absorbent article further includes a step of joining both ends in the longitudinal direction of the ridge-shaped portion of the skin sheet precursor in a folded state . By configuring in this way, it is possible to satisfactorily form a flange- like portion whose central portion in the longitudinal direction can be expanded and contracted in a bellows shape .

  Furthermore, it may further include a step of joining the skin sheet body formed by folding the skin sheet precursor and the top sheet on at least one end side in the longitudinal direction. By comprising in this way, the skin sheet body is joined in the both-sides edge of a top sheet, and the at least one edge part of the longitudinal direction, A bag-like space between a skin sheet body and a top sheet Can be produced (see FIGS. 5 and 6).

Moreover, in the manufacturing method of the absorbent article shown to the (c) figure and (d) figure in FIG. 21, the part (side flap) extended to the side from the both-sides edge of the top sheet 43 among the back sheets 44. FIG. In the step of folding the skin sheet precursor 45 that is above the top sheet 43, the skin sheet precursor 45 is folded above the top sheet 43 outside the side edge of the absorber 42. The skin sheet precursor may be folded over the top sheet together with a part including the side edges of the absorber.

  Next, other embodiment of the manufacturing method of the absorbent article of this invention is described. The manufacturing method of the absorbent article of this embodiment does not manufacture the skin sheet body of an absorbent article integrally with a back sheet like the manufacturing method mentioned above, but puts another sheet above the top sheet. It is a manufacturing method which forms a skin surface sheet body by arranging.

That is, the manufacturing method of this absorbent article includes a step of disposing an absorber on the upper surface of the back sheet, a step of disposing a top sheet so as to cover the upper surface of the absorber disposed on the upper surface of the back sheet, and an opening. The formed sheet body is folded along one direction to form a folded ridge-like part, and a step of obtaining the skin sheet body, and the obtained skin surface sheet body, the ridge-like part is the length of the absorbent body. And a step of arranging the upper sheet above the top sheet so as to be parallel to the direction.

  More specifically, first, the absorber is disposed on the upper surface of the back sheet, and the top sheet is disposed so as to cover the upper surface of the absorber disposed on the upper surface of the back sheet. The precursor of the absorbent article by which the top sheet was laminated | stacked is obtained. This step can be performed according to a conventionally known method for producing an absorbent article composed of a back sheet, an absorbent body, and a top sheet.

Next, separately from the above-described steps, an opening having a predetermined shape is formed in a sheet to be a skin sheet body to obtain a sheet body in which the opening is formed. Fold along the direction at least twice and fold to form a bowl-shaped portion, and join both ends in the longitudinal direction of the bowl-shaped portion in a folded state, while the longitudinal central portion of the bowl-shaped portion is The center part of the longitudinal direction in a bowl-shaped part is comprised so that expansion and contraction is possible, without joining in the folded state. Thus, the skin sheet body used for the absorbent article of this invention is obtained. The one direction is a direction parallel to the longitudinal direction of the absorbent body when the sheet body is disposed above the top sheet, for example, the longitudinal direction of the absorbent body and the longitudinal direction of the sheet body itself. Can be folded in a hook shape along the longitudinal direction of the sheet body to form a hook-shaped portion.

  Next, this skin surface sheet body is arrange | positioned above a top sheet so that the said hook-shaped part may become parallel to the longitudinal direction of an absorber. Thereafter, the skin sheet body and the top sheet are joined together to manufacture the absorbent article 1 as shown in FIGS.

  In addition, in the manufacturing method of each absorbent article described above, a long sheet material is used as each sheet such as a back sheet and a top sheet, and a method and apparatus for continuously feeding each long sheet material from a roller is adopted. Then, after the absorbent article continuum (absorbent article continuum) is formed, the resulting absorbent article continuum may be cut into a predetermined size to produce the absorbent article. Such a configuration contributes to an improvement in productivity.

  The absorbent article of this invention can be arrange | positioned inside clothing or a diaper, and can absorb and hold | maintain excrement satisfactorily. It can be suitably used as a urine pad for babies or an adult such as an elderly person or a disabled person who needs care, or a urine pad for men.

  Moreover, the manufacturing method of the absorbent article of this invention can manufacture the above-mentioned absorbent article of this invention simply and at low cost. In particular, the method for producing an absorbent article of the invention can be produced by applying an existing production line for producing conventional tape-type diapers and the like, and is therefore excellent in terms of equipment cost.

It is a top view showing one embodiment of an absorptive article of the present invention. It is a schematic sectional drawing which shows the cross section which cut | disconnected the absorbent article shown in FIG. 1 along the A-A 'line. It is a schematic sectional drawing which shows the cross section which cut | disconnected the absorbent article shown in FIG. 1 along the B-B 'line. It is explanatory drawing which shows the wearing condition at the time of using the absorbent article shown in FIG. 1 as a male urine pad. It is a top view which shows other embodiment of the absorbent article of this invention. It is a schematic sectional drawing which shows the cross section which cut | disconnected the absorbent article shown in FIG. 5 along the C-C 'line. It is a top view which shows other embodiment of the absorbent article of this invention. It is a top view which shows other embodiment of the absorbent article of this invention. It is a schematic sectional drawing which shows the cross section which cut | disconnected the absorbent article shown in FIG. 8 along the D-D 'line. It is a top view which shows the state which expanded one Embodiment of the absorbent article of this invention. It is a top view which shows the state which expanded one Embodiment of the absorbent article of this invention. It is a top view which shows the state which expanded one Embodiment of the absorbent article of this invention. It is a top view which shows other embodiment of the absorbent article of this invention. It is a top view which shows other embodiment of the absorbent article of this invention. It is a schematic sectional drawing which shows the cross section which cut | disconnected the absorbent article shown in FIG. 12 along the E-E 'line. It is a top view which shows other embodiment of the absorbent article of this invention. It is a top view which shows other embodiment of the absorbent article of this invention. It is a schematic sectional drawing which shows the cross section which cut | disconnected the absorbent article shown in FIG. 15 along the F-F 'line. It is a perspective view which shows the state which bent the absorbent article shown in FIG. 1 in the approximate center part of longitudinal direction length. It is a top view which shows other embodiment of the absorbent article of this invention. It is a top view which shows other embodiment of the absorbent article of this invention. It is a top view which shows other embodiment of the absorbent article of this invention. It is process drawing which shows the process of one Embodiment of the manufacturing method of the absorbent article of this invention. It is a top view which shows one Embodiment of the conventional male urine pad, and is a partially notched top view which shows the state which looked at the urine pad from the surface sheet side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1: Absorbent article, 1a: Male urine pad, 1b: Urine pad, 2,42: Absorbent body, 3,43: Top sheet, 4,44: Back sheet, 5: Skin sheet body, 5a, 5b : Side flap, 11: opening, 12: opening stretchable material, 13, 13a, 13b, 14, 14a, 14b: solid gather, 15: end stretchable material, 16: fixing means, 17: joint, 18: Saddle-shaped part, 21: male genital, 31, 31a, 31b: side edge, 32, 32a, 32b: end part, 33: bag-shaped space, 34: upper edge, 36: three-dimensional gather elastic material, 45: skin surface Sheet precursor, 46: Notch, 63, 63a, 63b: Side edge (side edge of top sheet) , 100 : Male urine pad, 102: Top sheet, 104: Back sheet, 106: Absorber, 108: Adhesive part, 110: upper edge, 112: right Edge, 114: left side edge, 116: bottom edge, 118: Bi, 138: pad stretchable material.

Claims (18)

An absorber, a top sheet that is arranged so as to cover the upper surface of the absorber, and at least a part that is made of a liquid-permeable material, and a surface that covers the lower surface of the absorber, and is made of a liquid-impermeable material Comprising a back sheet, and a skin sheet body disposed above the top sheet,
The skin sheet body is joined to side flaps that are portions extending laterally from both side edges of the top sheet of the back sheet, or joined to the side edges of the top sheet or the back sheet, The top sheet and the back sheet are formed by a separate sheet member,
The skin sheet body is formed with at least one of an opening through which feces can pass and an opening through which male genitalia can be inserted ,
The side flap or the sheet body is folded back at least twice by a fold line along the longitudinal direction of the absorbent body in a region on both sides of the region where the opening is formed in the skin sheet body. A bowl-shaped part is formed,
Both end portions in the longitudinal direction of the bowl-shaped portion are joined in a folded state, while a central portion in the longitudinal direction of the bowl-like portion is not joined in a folded state, and the bowl-like portion is joined. An absorbent article in which a central portion in the longitudinal direction of the portion is configured to be stretchable in a bellows shape .   The skin sheet body is joined at both side edges of the top sheet and at least one end in the longitudinal direction thereof, and a bag-like space is formed between the skin sheet body and the top sheet. The absorbent article according to claim 1.   3. The skin sheet body according to claim 1, wherein the skin sheet body is configured by folding a portion that is integrally extended laterally from at least one side edge of the back sheet to the upper side of the top sheet. Absorbent articles.   The absorbent article according to any one of claims 1 to 3, wherein at least a pair of three-dimensional gathers are formed on the upper surface of the top sheet below the skin sheet.   The absorbent article according to any one of claims 1 to 4, wherein at least a pair of three-dimensional gathers are formed on a surface of the skin sheet body facing the top sheet.   The absorbent article according to any one of claims 1 to 5, wherein an opening stretchable material is disposed along a part of an outer edge of the opening of the skin surface sheet body.   The absorbent article according to claim 6, wherein the absorbent article is used by being folded in half at a substantially central portion of the longitudinal length of the absorbent article.   The absorbent article according to any one of claims 1 to 7, wherein the skin sheet body has at least a region where the opening is formed made of a water-repellent material or a liquid-impermeable material.   The absorptive article according to any one of claims 1 to 8 which has fixing means for fixing to the clothes or a diaper on the undersurface of said back sheet.   The absorbent article in any one of Claims 1-9 by which the edge part elastic material is arrange | positioned at the at least one edge part side of the longitudinal direction of the said absorbent article.   The absorbent article according to any one of claims 1 to 10, which is a male urine pad that is used by inserting a male genitalia into the opening of the skin sheet body.   The absorbent article according to any one of claims 1 to 10, which is a urine / feces pad used in the vicinity of a crotch part of clothing or a diaper.   The absorbent article according to claim 12, wherein the skin sheet body has a urine permeation region through which urine can permeate. An absorber, a top sheet that is arranged so as to cover the upper surface of the absorber, and at least a part that is made of a liquid-permeable material, and a surface that covers the lower surface of the absorber, and is made of a liquid-impermeable material And a skin sheet body disposed above the top sheet , wherein the skin sheet body is a portion of the back sheet that extends laterally from both side edges of the top sheet. The skin sheet body is formed with at least one of an opening through which feces can pass and an opening through which male genitalia can be inserted, and the opening in the skin sheet body There the regions on both sides edge of the area being formed, folds the said side flaps folded lines along the longitudinal direction is folded is folded at least twice of the absorbent body is formed, Both ends in the longitudinal direction of the saddle-shaped part are joined in a folded state, while the central part in the longitudinal direction of the saddle-shaped part is not joined in a folded state, and the bowl-like part is joined. It is a method for manufacturing an absorbent article in which the central part in the longitudinal direction of the part is configured to be stretchable in a bellows shape ,
A step of obtaining the back sheet having a skin sheet precursor, which is a portion corresponding to the side flap, in which a notch serving as the opening of the skin sheet body is formed;
Arranging the top sheet so as to cover the top surface of the absorber disposed on the top surface of the back sheet, while disposing the absorber on the top surface of the back sheet;
Folding the skin sheet precursor extended from both side edges of the top sheet at least twice by folding lines along the longitudinal direction of the absorber, and forming the hook-shaped portion;
The skin sheet precursor on which the ridge-shaped part is formed is folded back above the top sheet, and both end portions in the longitudinal direction of the ridge-shaped part of the skin sheet sheet precursor are joined in a folded state. On the other hand, the central portion in the longitudinal direction of the hook-shaped portion is not joined in a folded state, and the opening made of the cutout portion is formed , and the central portion in the longitudinal direction of the hook-shaped portion is bellows-like. Forming the skin sheet body configured to be stretchable , and a method for producing an absorbent article.   The method for manufacturing an absorbent article according to claim 14, wherein the skin sheet precursor is folded back above the top sheet outside a side edge of the absorber.   The method for manufacturing an absorbent article according to claim 14, wherein the skin sheet precursor is folded back above the top sheet together with a part including a side edge of the absorber.   The absorption according to any one of claims 14 to 16, further comprising a step of joining the skin sheet body formed by folding the skin sheet precursor and the top sheet on at least one longitudinal end side. A method for producing a functional article. An absorber, a top sheet that is arranged so as to cover the upper surface of the absorber, and at least a part that is made of a liquid-permeable material, and a surface that covers the lower surface of the absorber, and is made of a liquid-impermeable material And a skin sheet body disposed above the top sheet, the skin sheet body being joined to the top sheet or a side edge of the back sheet, and the top sheet and The skin sheet is formed by a sheet member that is a separate member from the back sheet, and the skin sheet is formed with at least one of an opening through which feces can pass and an opening through which male genitalia can be inserted. the regions on both sides edge of a region where the opening is formed in the body, the seat body in the folded lines along the longitudinal direction of the absorbent body is folded is folded at least twice A hook-shaped portion is formed, and both end portions in the longitudinal direction of the hook-shaped portion are joined in a folded state, while a central portion in the longitudinal direction of the hook-shaped portion is joined in a folded state. It is a manufacturing method of an absorbent article in which the central portion in the longitudinal direction of the bowl-shaped portion is configured to be stretchable in a bellows shape ,
Arranging the top sheet so as to cover the top surface of the absorber disposed on the top surface of the back sheet, while disposing the absorber on the top surface of the back sheet;
While the sheet body in which the opening is formed is folded twice along one direction to form the hook-shaped portion, and joined in a state where both ends in the longitudinal direction of the hook-shaped portion are folded, A step of obtaining the skin surface sheet body configured such that the central portion in the longitudinal direction in the hook-shaped portion is not joined in a folded state, and the central portion in the longitudinal direction in the hook-shaped portion is configured to be stretchable in a bellows shape ;
A method of manufacturing an absorbent article, comprising: placing the obtained skin sheet body above the top sheet so that the hook-shaped portion is parallel to the longitudinal direction of the absorber.

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