JP5002217B2 - Pants-type diapers - Google Patents

Description

  The present invention relates to a pants-type diaper having a pants-type diaper in which one waist-opening and a pair of leg-openings are formed.

  The pants-type diaper is composed of the front body 2, the crotch 4, and the back body 6, as in the pants-type diaper 1 shown in FIGS. 1 and 2, and the front body 2 and the back body 6 correspond to each other. It is a disposable diaper in which side edges are joined to each other to form one waist opening 10 and a pair of leg openings 12 (12a, 12b). In such a pant-type diaper, elastic materials such as rubber thread (the elastic material 42 around the waist and the elastic material 40 around the legs) are disposed along the waist opening 10 and the leg openings 12 (12a, 12b). The structure to perform is common (for example, refer patent document 1).

  Pants-type diapers can be worn by the wearer in the same way that cloth pants are put on.In addition to being able to change diapers in a short time, changing diapers while the wearer is standing up It can also be done. In addition, unlike a tape-type diaper, there is no need to adjust the size around the waist with a fixing tape, and the diaper can be easily replaced.

  Adult pants-type diapers usually have only a waist opening and a pair of leg openings, and the pants need to be lowered when urination is required. However, for men, before using diapers, it is common to urinate by opening the genitals through openings formed in trousers and underwear, and it is inconvenient that you cannot urinate unless you lower the pants one by one. I felt it.

  Patent Document 2 discloses a male incontinence pant having an opening portion that is always open at the center of the front body, and the opening portion has no meeting. This pant is a kind of underwear and is made of the same material as normal underwear. Therefore, it is not waterproof and a urine collection pad is essential. In addition, there is a problem that the skin is exposed or the leakage is likely to occur due to the pad being displaced.

Patent Document 3 discloses a pant body having a urination window that can be opened and closed in the vicinity of the front center, and an incision that can be opened and closed at a position corresponding to the urination window of the pant body. An incontinence pant comprising an absorbent pad is disclosed. This pant has a problem that leakage is likely to occur because the absorbent pad has a cut near the center.
Registered Utility Model No. 3024357 Japanese Utility Model Publication No. 63-186415 JP 2003-111785 A

  The present invention has been made to solve such problems of the prior art, and the present invention is designed to remove male genitals from which the skin is not exposed through the opening for male genitals and leakage is unlikely to occur. A pants-type disposable diaper having an opening for use is provided.

  As a result of intensive studies to solve the problems of the prior art as described above, the present inventor can solve the above problems by providing an opening for extracting male genitals in a part of the front body of the exterior member. The present invention has been completed. Specifically, the following pant-type disposable diapers are provided by the present invention.

[1] The front body, the crotch part, and the back body are composed of respective parts, corresponding side edges of the front body and the back body are joined to each other, and one waist opening and a pair of leg openings are formed. A pants-type disposable diaper comprising a formed exterior member and an absorbent main body disposed inside the exterior member , wherein the absorbent main body includes an absorbent for absorbing excrement, and an absorbent body A top sheet made of at least a part of a liquid-permeable material and arranged to cover the surface; and a back sheet made of a liquid-impermeable material and arranged to cover the back surface of the absorber. and, wherein is intended to be disposed in at least the predecessor around portions of the exterior member, wherein the said predecessor around part of the outer member, have if overlap with the absorbent body, and protrude from the absorbent body Not in the above position An opening for male genital extraction, which is a slit penetrating a packaging member, is formed , at least both longitudinal ends of the absorbent main body are fixed to the exterior member, and the male genital extraction opening in the exterior member A pants-type disposable diaper that is not bonded to at least one of the left and right parts .

[ 2 ] The pants-type disposable diaper according to the above [ 1 ], wherein the slit has a length in the range of 100 to 150 mm.

[ 3 ] The pants-type disposable diaper according to the above [1] or [2] , wherein an end of the slit is formed in a circular shape, a semi-circular shape, a T shape, or a Y shape.

[ 4 ] The pants-type disposable diaper according to any one of [1] to [3] , wherein the exterior member is configured such that the basis weight around the end of the slit is higher than that of the other part.

[ 5 ] The male instrument extraction opening is formed at a position where the exterior member and the absorbent main body overlap with each other and at a position 30 to 100 mm away from a side edge of the absorbent main body. The underpants type disposable diaper according to any one of 1] to [ 4 ].

[ 6 ] The pants-type disposable diaper according to any one of the above [1] to [ 5 ], wherein the opening for taking out the male genitalia is formed in a portion corresponding to the central portion in the width direction of the absorbent main body.

[ 7 ] The pants-type disposable diaper according to any one of [1] to [ 6 ], further comprising a fastener capable of fixing the exterior member and the absorbent main body in the vicinity of the opening for taking out the male genitalia. .

[ 8 ] The pants-type disposable diaper according to [ 7 ], wherein the fastener is a mechanical fastener.

The present invention is characterized in that an opening for taking out male genitalia is formed in a front body part of an exterior member of a pant-type diaper. The penis takeout opening have if overlap the absorbent body and the exterior member, and formed in a portion not protruding from the absorbent body, even when the penis takeout opening open Gimi, the skin is exposed There is no. Moreover, since an opening part is not formed in an absorptive main body, it is hard to produce a leak and productivity of a diaper is also good. Further, at least both ends in the longitudinal direction are fixed to the exterior member, and the absorbent main body is not bonded to at least one of the left and right portions of the male instrument extraction opening in the exterior member. Therefore, when urinating while wearing a pants-type diaper, a route for taking out the male genital can be secured in advance. Further, when the male genitalia is taken out from the opening for taking out the male genitalia, the degree of freedom of the absorptive main body is increased, so that the male genitalia can be easily removed.

  Hereinafter, the best mode for carrying out the pants-type diaper of the present invention will be specifically described. However, the present invention broadly encompasses pants-type diapers having the invention-specific matters, and is not limited to the following embodiments.

  In the present specification, the term “pants-type diaper” refers to the side edges corresponding to the front body 2 and the back body 6 (side edges 2a, 2a, 2), as in the pants-type diaper 1 shown in FIGS. 6a, side edge portions 2b, 6b) means a diaper having a joint portion 8, one waist opening 10 and a pair of leg openings 12a, 12b formed in advance and configured in a pants shape. It shall be.

  The pants-type diaper of the present invention is a two-piece type diaper. And the “two-piece type” means an absorbent main body 14 that functions to absorb and retain the excrement of the wearer (absorption / holding function) and a function (wearing function) that encapsulates the wearer's body. It shall consist of the exterior member 16 to bear, and shall mean the diaper of the type by which the absorptive main body 14 was arrange | positioned inside the exterior member 16. FIG. As shown in FIG. 3, the absorbent main body 14 is a member that includes an absorbent body 22, a top sheet 18, and a back sheet 20 as constituent elements.

  In addition, in this specification, “front body” means a part that covers the abdomen (front of the body) of the wearer when a diaper is worn on the wearer, and “inseam” means that the wearer wears a diaper. When the wearer wears a diaper, the part covering the inseam of the wearer means the part covering the back side (back of the body) of the wearer.

[1] Configuration of the pants-type diaper of the present invention:
The underpants type diaper of the present invention is, like the underpants type diaper 1 shown in FIGS. 1 to 3, an absorbent main body 14 including an absorbent body 22, a top sheet 18, and a back sheet 20, a front body 2, and an inseam. It consists of each part of the part 4 and the back body 6, and the side edge parts 2a and 6a (2b, 6b) of the front body 2 and the back body 6 are joined together (joint part 8), and one waist circumference opening part 10 and a pair of leg openings 12 (12a, 12b) are pants-type diaper which is formed from the outer member 16 to form the, have engagement overlaps with the absorbent body 14 in the front body portion of the outer member 16, and , in a position not protruding from the absorbent body 14, is the male genitalia take-out opening 46 is a slit which penetrates the outer member 16 is formed, the absorbent body 14, at least both longitudinal end portions are fixed to the exterior member 16 And a pants-type disposable diaper which is not bonded to at least one of the left and right portions of the male genitalia takeout opening 46 in the outer member 16.

[1-1] Male genital outlet opening:
In this invention, the below-mentioned exterior member has the opening part for male instrument extraction in a part of the front body. Further, the male genital takeout opening have if overlaps the absorbent body will be described later, and is formed in a portion not protruding from the absorbent body. By comprising in this way, even if it is a case where the opening part for male genital extraction becomes open by change of a posture, skin is not exposed from the opening part for male genital extraction. Further, since no opening is provided in the absorbent main body, the amount of absorption in the urination area is not reduced, and there is no risk of urine leakage from the opening.

  The opening for taking out male genitalia can be formed by inserting a slit that penetrates the exterior member. The length of the slit is preferably in the range of 100 to 150 mm. If the length of the slit is too long, the exterior member may not be able to hold the absorbent main body sufficiently, while if it is too short, it is difficult to take out the male genitalia. A slit is arrange | positioned along the longitudinal direction of a pants-type diaper.

  The slit may be a continuous cutting line or a broken line. When formed with a broken line, it is possible to prevent the slit part from being pulled by the elastic member and opening when the diaper is manufactured, so that the diaper is formed in a distorted shape.

  As for the position of the opening part for male instrument extraction, the overlapping part of an exterior member and an absorptive main body has the preferable range which is 30-100 mm. Here, the overlapping portion refers to the distance between the opening for removing the male genitalia and the end of the absorbent main body, specifically, the opening for extracting the male genitalia and the opening for extracting the male genitalia. And the distance L (L in FIG. 2) with the edge part of the absorptive main body of the nearer one from the opening part for male instrument extraction is pointed out. If the overlap is small, the skin will be exposed or cause leakage, while if the overlap is too large, it will be difficult to remove the male genitalia. For the same reason, it is preferable to form the male instrument extraction opening at approximately the center in the width direction of the absorbent main body.

  FIG. 1 and FIG. 2 are examples in which a male instrument extraction opening 46 is formed by inserting a slit penetrating the exterior member. In FIG. 1 and FIG. 2, although the slit is arrange | positioned horizontally with respect to the underpants type diaper longitudinal direction, you may arrange | position diagonally. It is preferable to arrange them horizontally as shown in FIGS.

  In the case where the male instrument extraction opening is formed by inserting a slit that penetrates the exterior member, both ends of the slit as the male instrument extraction opening are circular, semi-circular, T-shaped or Y-shaped. It is effective. By comprising in this way, the tearing of a slit can be prevented.

  4 (a) to 4 (e) are examples of a fastening shape at both ends of the slit. 4A is an example of a T shape, FIG. 4B is a Y shape, FIGS. 4C and 4D are semicircular, and FIG. 4E is an example of a circle. Here, the opening and the fastening portion may be continuous, but may be discontinuous as shown in FIG. The same shape is preferable at the top and bottom, but they may be different.

  As another means, the end of the slit may be configured to have a higher basis weight than other portions. Making the basis weight higher than other parts means that a reinforcing sheet of the exterior member that hits the slit end is newly arranged. With this reinforcing sheet, it is possible to prevent the end of the slit from tearing. The reinforcing sheet only needs to be near both ends of the slit. The material may be a non-woven fabric or a film. The film is highly effective in preventing tearing. Nonwoven fabrics have the advantage of not hindering breathability. The reinforcing sheet 58 may be continuously arranged on the cover sheet. A fastening shape may be combined. It suffices if it is close to the end of the opening, and it may be arranged so as to cover the end. The reinforcing sheet may be sandwiched between sheets constituting the exterior member, but may be disposed outside the sheet constituting the exterior member. However, preferably, it arrange | positions in the site | part which hits between sheets or between an exterior member and an absorptive main body. If the reinforcing sheet is arranged at the position corresponding to the outermost side of the pants-type diaper, it not only looks bad, but may cause troubles such as peeling due to rubbing with clothes.

  FIGS. 5 and 6 show examples of slit end prevention using the reinforcing sheet 58. FIG. 5 shows an embodiment in which the reinforcing sheet 58 is disposed on the exterior member 16 that is in the vicinity of both ends of the slit as the male instrument extraction opening 46. FIG. 6 shows an embodiment in which a reinforcing sheet 58 is disposed over substantially the entire lateral width of the exterior member in a portion including both ends of the slit as the male instrument extraction opening 46. As shown in FIG. 5, the method of arranging the reinforcing sheet only at the slit end can be manufactured at low cost without using a sheet member more than necessary. On the other hand, the method of arranging the reinforcing sheet on the front surface in the width direction of the pant-type diaper as shown in FIG. 6 is that when the pant-type diaper exterior member is continuously manufactured, the reinforcing sheet is continuously applied in the same direction as the elastic member. There is an advantage that it is only necessary to arrange them, and it is not necessary to adjust the timing to arrange them in accordance with the slit positions, thereby facilitating manufacture.

  Further, as another means, the vicinity of the end of the slit may be configured such that the adhesive strength between the exterior member and the absorbent main body is higher than that in the rear body buttock region. Thereby, it can prevent that an exterior member tears along a slit.

  FIG. 7 is a view showing an embodiment of the state of adhesion between the absorbent main body 14 and the exterior member 16. In FIG. 7, strong adhesion regions 60 are provided at portions corresponding to the longitudinal ends of the absorbent main body 14 and the front side of the crotch (shaded portions in FIG. 7). Further, a weak adhesion region 62 is provided in a portion from the rear side of the crotch portion of the absorbent main body 14 to the back body (shaded portion in FIG. 7). Due to the strong adhesion region 60 at the end of the slit as the male device extraction opening 46, the exterior member 16 and the absorbent main body 14 are firmly bonded at the end of the slit as the male device extraction opening 46, so that Is prevented. In FIG. 7, the strong adhesion region 60 is formed over the entire width of the absorbent main body 14, but it may be formed at least at the end of the slit serving as the male instrument extraction opening 46, and does not need to be the entire width. .

[1-2] Fastener:
It is preferable to provide a fastener for detachably fixing the exterior member and the absorbent main body in the vicinity of the male instrument extraction opening so that the male instrument extraction opening does not tend to open. The fastener may be made of adhesive, but it is difficult to decrease the adhesive force even if it is used repeatedly, and the mechanical strength does not decrease even if the opening is wrinkled and the fastener sticks to the peripheral member. It is preferable to use a fastener. This “mechanical fastener (also referred to as a surface fastener)” is a surface fastener that uses mechanical coupling. For example, a large number of protrusions (such as hooks, mushrooms, hooks, etc.) are formed on the surface. A combination of a convex member (hook material) and a concave material (loop material) having loop-like fibers arranged on the surface is often used. In this mechanical fastener, the hook material is superimposed 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 peeled and firmly fixed. It is something that can be done.

  The mechanical fastener may be disposed along the entire male instrument taking-out opening, or only a part thereof. If it is arranged as a whole, there will be no gap between the exterior member and the absorbent main body, but this is not preferable because the handle portion disappears when the male instrument extraction opening is opened. Moreover, in order to manufacture more inexpensively, it is preferable to arrange only at a part of the male side of the male part extraction opening.

  In the underpants type diaper of the present invention, the shape of the hook material of the mechanical fastener is not particularly limited, and various shapes such as a band shape, a rectangular shape, a strip shape, and the like can be used. For example, the hook material can be formed into a strip shape. When the hook material is formed in a strip shape, there is an advantage that reliable fixing can be performed with a small area.

Since the hook material can be engaged with a material having a fibrous surface such as woven fabric, non-woven fabric, felt, and pile in addition to the corresponding loop material of the mechanical fastener, the loop of the mechanical fastener The same effect can be obtained by arranging a sheet material made of these materials instead of the material. That is, the “loop material” referred to in this specification includes a sheet material made of a material having a fibrous surface, such as a woven fabric, a nonwoven fabric, a felt, or a pile, in addition to a loop material of a mechanical fastener. The “loop material” other than the loop material of the mechanical fastener is a non-woven fabric (air-through non-woven fabric) that is bulky and has a basis weight of 15 g / m ² or more, more preferably 20 g / m ² or more because of its high engaging force with the hook material. Etc.) can be used particularly preferably. FIG. 1 shows an example in which a mechanical fastener 48 is formed in the vicinity of a male instrument extraction opening 46.

  The mechanical fastener may be a method of providing a hook material on the exterior member and a loop material on the absorbent main body, or vice versa. When the exterior member itself has an engagement force sufficient to function as a loop material, it is only necessary to provide a hook material on the absorbent main body. However, the method of providing a hook material on the exterior member is preferred. When the absorbent body is pulled out when the male genitalia is taken out from the opening for taking out the male genitalia, the outer surface of the absorbent main body may face the skin side. This is because a hook material having a rough surface and high strength may hit the skin and cause pain.

[1-3] 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. Further, synthetic fibers such as heat-sealing fibers may be included as a countermeasure against the deformation of the absorber.

  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.

[1-4] Top sheet:
A top sheet is a sheet | seat arrange | positioned so that the upper surface (surface located in a wearer's skin side at the time of mounting | wearing of a diaper) 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.

  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. The top sheet may be composed of a single sheet material, but may be composed of a plurality of sheet materials.

[1-5] Backsheet:
A back seat | sheet is a sheet | seat arrange | positioned so that the lower surface (surface located in a wearer's clothing side at the time of mounting | wearing of a diaper) may be coat | covered. The back sheet is made of a liquid-impermeable material because it is necessary to prevent the wearer's urine from leaking outside the diaper.

  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 impervious but has moisture permeability, so that the inside of the diaper can be prevented from being steamed There is.

  Note that a sheet material (cover sheet) may be bonded to the outer surface of the back sheet. This cover sheet can be used in order to improve the texture on the back side of the absorbent main body that is partially turned over to the skin contact surface side when the male genitalia is taken out from the opening for extracting the male genitalia. In addition, when the mechanical fastener is disposed in the opening, depending on the material, it can also serve as a loop material.

  Examples of the material constituting the cover sheet include woven fabric and non-woven fabric. Especially, it is preferable to use the dry nonwoven fabric and wet nonwoven fabric which consist of thermoplastic resins, such as polyethylene, a polypropylene, and polyester.

[1-6] Absorbent body:
In a two-piece type pants-type diaper, the top sheet, the back sheet, and the absorbent body are configured as one member called an “absorbent body” that has an absorption and holding function, and an exterior member manufactured separately from this A pants-type diaper is formed by joining. This absorbent main body has a structure in which a top sheet is disposed on the upper surface side of the absorbent body and a back sheet is disposed on the lower surface side, and the absorbent body is interposed between the top sheet and the back sheet. For example, the pants-type diaper 1 shown in FIG. 2 and FIG. 3 has an absorbent body 22 sandwiched between the top sheet 18 and the back sheet 20, and the periphery of the absorbent body 22 is sealed. This is an example in which an absorbent main body 14 having a structure in which an absorber 22 is interposed between the sheet 20 and the sheet 20 is configured.

  An absorptive main body is comprised by the size which covers at least the crotch part of a diaper. However, in order to ensure the effect of preventing leakage, it is preferable to have a size that covers not only the crotch part but also a part of the front body and the back body. The absorptive main body can be fixed to the exterior member using, for example, a hot melt adhesive.

In the pants-type diaper of the present invention, the absorbent main body fixes at least both ends in the longitudinal direction to the exterior member. It fixing method may be impossible peeling, it may be detachable state. When fixing an absorptive main body to an exterior member, it is preferable to adhere | attach to such an extent that it can peel easily by human power. Here, the adhesion that can be easily peeled off by human power refers to adhesion (temporary adhesion) that is peeled off when pulled perpendicularly to the bonding surface with a force of 0.5 to 20 N. As a result, the absorbent main body is stably fixed to the exterior member when the pant-type diaper is distributed and used, and the absorbent main body does not come off or shift while urinating while wearing the pant-type diaper. When doing, the path | route for taking out a male genital is ensured by peeling one from the left-right part of the opening part for male genital extraction in an exterior member from an absorptive main body. In the present invention, at least one of the left and right portions of the male genitalia takeout opening in the exterior member is previously not bond the absorbent body and the exterior member. Thereby, the path | route for taking out a male genitalia can be ensured previously. When it is formed by temporary bonding, it is possible to prevent tearing at the end of the opening for removing male genitals by using a fastening shape such as a Y-shape, a T-shape, a circle, a semicircle, or a reinforcing sheet. preferable.

  FIG. 8 is a view showing an embodiment of the state of adhesion between the absorbent main body 14 and the exterior member 16. In FIG. 8, adhesive regions 64 are provided in portions corresponding to the longitudinal ends of the absorbent main body 14 (shaded portions in FIG. 8). In this way, the absorbent main body 14 may be bonded to the exterior member 16 only at both ends in the longitudinal direction. By adopting such a configuration, when the male genitalia is taken out from the male genital extraction opening 46, the degree of freedom of the absorbent main body is increased, so that the male genital can be easily taken out.

[1-7] Exterior member:
The exterior member is a member that bears a mounting function for encapsulating the wearer's body, and specifically, is a sheet-like member that forms the front body, the crotch portion, and the back body.

  In the two-piece type pants-type diaper, the absorbent main body serves exclusively for the absorption / holding function of absorbing and holding the excrement of the wearer, so a liquid-impermeable material as a material constituting the exterior member There is no need to use. Examples of the material constituting the exterior member include a nonwoven fabric composed of synthetic fibers made of polyethylene, polypropylene, polyester, and other thermoplastic resins.

  And in order to fix an exterior member in the state which pinched | interposed the elastic material etc. around the leg, it is often configured by bonding two or more nonwoven fabrics together. For example, the pants-type diaper 1 shown in FIGS. 1 to 3 includes an exterior member 16 formed by laminating three nonwoven fabrics, and a leg elastic member 40, a waist elastic member 42, and an abdominal circumference between the nonwoven fabrics. This is an example in which an elastic material 44 is sandwiched and fixed. In this example, a part of the exterior member 16 is folded back to cover the front end and the rear end of the absorbent main body 14. Such a configuration is preferable because it is possible to prevent leakage of urine and loose stool from the front end or rear end of the absorbent main body 14 to the outside of the diaper.

[1-8] Solid gathering:
In order to prevent side leakage of urine excreted by the wearer, it is preferable to provide a three-dimensional 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. By forming such a three-dimensional gather, urine is excreted on the top sheet, and even if the urine spreads through the top sheet, the three-dimensional gather becomes a breakwater, and the diaper leg opening etc. Leakage (so-called “lateral leakage”) can be effectively prevented.

  The structure of a three-dimensional gather can employ | adopt the structure used for the conventional disposable diaper and other absorbent articles. For example, a stretchable material (a three-dimensional gathered stretchable material) disposed on a part of the water-repellent sheet material and a sheet (gather) formed on the sheet material by the three-dimensional gathered stretchable material can be suitably used.

  The pants-type diaper 1 shown in FIG. 2 has a sheet material (three-dimensional gather forming sheets 32a and 32b) completely separate from the top sheet 18 and the back sheet 20 bonded to both side edges of the absorbent main body 14 in a three-dimensional manner. In this example, a pair of solid gathers 26a and 26b is formed by using a structure that can stand up. In this example, the ends of the three-dimensional gather forming sheets 32a and 32b (the ends corresponding to the upper end edges of the three-dimensional gathers 26a and 26b) are folded back, and one three-dimensional gather expansion / contraction material 36a and 36b is attached to the folded portion. It arranges so that it may be inserted.

[1-9] Various elastic materials:
In a pants-type disposable diaper, it is common to arrange an elastic material around the legs, arrange an elastic material around the waist, and more preferably arrange an elastic material around the abdomen.

  The leg circumference elastic material is an elastic material arranged along the leg circumference opening. By arranging the leg-stretchable material, a gather (leg gather) rich in stretchability can be formed in the leg-surrounding opening. Therefore, it is difficult to form a gap around the leg, and urine leakage from the opening around the leg can be effectively prevented.

  The waist elastic material is an elastic material arranged along the waist opening. By arranging the elastic material around the waist, a gather (waist gather) rich in elasticity can be formed in the waist opening. This waist gather makes it difficult for gaps to be formed around the waist, preventing urine leakage from around the waist, and improving the fit of the diaper to the wearer, thereby preventing the diaper from falling down.

  An abdominal circumference elastic material is an elastic material arrange | positioned in the part (namely, part equivalent to a wearer's abdominal circumference) between a waist circumference opening part and a leg circumference opening part. By arranging the elastic material around the abdomen, it is possible to form a gather (tammy gather) rich in elasticity around the abdomen of the wearer. This Tammy Gather, together with West Gather, can make the diaper fit and anti-slip effect even better.

  In the pant-type diaper 1 shown in FIGS. 1 to 3, a plurality of leg-hole stretchable members 40 are arranged on the periphery of the leg-hole openings 12 a and 12 b, and the waist-hole opening is formed on the periphery of the waist-hole opening 10. A plurality of waist elastic members 42 are disposed so as to surround the portion 10, and a portion between the waist opening 10 and the leg openings 12 a and 12 b (that is, a portion corresponding to the wearer's abdomen) ) Is an example in which a plurality of belly stretchable members 44 are arranged so as to surround the wearer's belly.

  About these elastic materials, the structure similar to the opening part elastic material already described is employable. Then, after considering the degree of gather contraction and the like, the constituent material, the elongation rate of the material, the stretched state at the time of fixing, etc. may be determined.

[2] Method for producing a pants-type diaper of the present invention:
Hereinafter, an example of the method for producing the pant-type diaper of the present invention will be described with reference to an example of producing the pant-type diaper 1 (two-piece type pant-type diaper) shown in FIGS.

[2-1] Production of absorbent main body:
An absorber 22 wrapped in a hydrophilic sheet is disposed on the upper surface of the back sheet 20, and a top sheet 18 is disposed on the upper surface. Next, the absorbent main body 14 is obtained by sealing the periphery of the absorbent body 22 so as to be sandwiched between the top sheet 18 and the back sheet 20.

[2-2] Production of solid gathers:
One end portion of the sheet material 32a (32b) is folded back, and the three-dimensional gathers 26a (26b) are obtained by bonding the folded portions with the two three-dimensional gather elastic members 36a (36b) sandwiched therebetween.

[2-3] Attaching a three-dimensional gather to the absorbent main body:
The three-dimensional gathers 26a and 26b are bonded together so as to wrap the side edge of the absorbent main body 14, that is, the bonded portion of the top sheet 18 and the back sheet 20, from the outside.

[2-4] Production of exterior member:
First, two nonwoven fabrics to be the exterior member 16 are prepared, and a waist elastic member 42, an abdominal elastic member 44, and a leg elastic member 40 are disposed and bonded and fixed to the upper surface of one of the nonwoven fabrics. Then, another non-woven fabric is laminated and fixed on the upper surface. Thereafter, a slit that becomes the male instrument extraction opening 46 is formed at a predetermined position by a blade, a laser, or the like. In this manner, the exterior member 16 is obtained in which the waist elastic member 42, the belly elastic member 44, and the leg elastic member 40 are interposed between the two nonwoven fabrics.

[2-5] Production of pants-type diapers:
The absorbent main body 14 is disposed and fixed near the crotch part of the exterior member 16. Under the present circumstances, in order to hold down the both ends of an absorptive main part, a presser sheet is arranged on both ends of the front and back body parts of exterior member 16, and the both ends of an absorptive main body are covered and fixed. Next, the absorbent body 14 is turned inside, and the front body 2 and the back body 6 are folded in two so that the front body 2 and the back body 6 are matched, and the front body 2 and the back body 6 are joined by means such as heat sealing to form the joint 8. By doing, the pants-type diaper 1 shown in FIGS. 1-3 can be manufactured. At this time, the mechanical fastener 48 is sandwiched between the exterior member 16 and the absorbent main body 14 as necessary.

  The underpants type diaper of the present invention can be used as an absorbent article for adult men such as elderly people and persons with disabilities who require mild care. In particular, it can be suitably used as an absorbent article for male patients with incontinence.

It is a schematic perspective view which shows one Embodiment of the underpants type diaper of this invention, and is the figure which shows the state which looked at the underpants type diaper of this invention from the front. It is a top view which shows one Embodiment of the underpants type diaper of this invention, and is the figure which expand | deploys the underpants type diaper shown in FIG. 1 and shows the state seen from the absorptive main body side of the diaper. It is a schematic sectional drawing which shows one Embodiment of the underpants type diaper of this invention, and is a figure which shows the cross section which cut | disconnected the underpants type diaper shown in FIG. 1 in the vertical direction. (A)-(e) It is an example of the fastening shape used for the underpants type diaper of this invention. FIG. 2 is a plan view showing an embodiment of the pant-type diaper of the present invention, in which the pant-type diaper of the present invention provided with reinforcing sheets at both ends of a slit as an opening for male genitals is developed, and the absorbent main body of the diaper It is a figure which shows the state seen from the side. It is a top view which shows one embodiment of the underpants type diaper of the present invention, expands the underpants type diaper of the present invention provided with other reinforcing sheets at both ends of the slit as an opening for removing male genitalia, and absorbs the diaper It is a figure which shows the state seen from the sex main body side. It is a top view of one embodiment of the underpants type diaper of the present invention, and is a figure showing signs of adhesion with an exterior member and an absorptive main part. It is a top view of one embodiment of the underpants type diaper of the present invention, and is a figure showing signs of other adhesion of an exterior member and an absorptive main part.

Explanation of symbols

1: pants-type diaper, 2: front body, 2a, 2b: side edge, 4: crotch, 6: back body, 6a, 6b: side edge, 8: joint, 10: waist opening, 12 12a, 12b: leg opening, 14: absorbent main body, 16: exterior member, 18: top sheet, 20: back sheet, 22, 46: absorber, 26, 26a, 26b: three-dimensional gather, 30: 32, 32a, 32b: sheet material, 36, 36a, 36b: three-dimensional gather elastic material, 40: elastic material around the leg, 42: elastic material around the waist, 44: elastic material around the abdomen, 46: opening for male instrument extraction, 48: Mechanical fastener, 50: Circular end fastening, 52: Semi-circular end fastening, 54: T-shaped end fastening, 56: Y-shaped end fastening, 58: Reinforcement sheet, 60: Strong adhesion region, 62 : Weak adhesion area, 64: Adhesion area

Claims (8)

Consists of front body, crotch, and back body parts, corresponding side edges of the front body and the back body are joined together to form one waist opening and a pair of leg openings. A pants-type disposable diaper comprising an exterior member and an absorbent main body disposed inside the exterior member,
The absorbent main body covers an excrement absorbing absorber, a top sheet at least partially made of a liquid-permeable material, arranged to cover the surface of the absorber, and a back surface of the absorber A back sheet made of a liquid-impermeable material and arranged at least on the front body part of the exterior member,
In the front body portion of the exterior member, an opening for taking out male genitals, which is a slit that penetrates the exterior member, is formed at a position that overlaps with the absorbent body and does not protrude from the absorbent body. ,
The absorbent main body is a pants-type disposable diaper in which at least both ends in the longitudinal direction are fixed to the exterior member, and is not bonded to at least one of the left and right portions of the male instrument extraction opening in the exterior member . The pants-type disposable diaper according to claim 1 , wherein a length of the slit is in a range of 100 to 150 mm. The pants-type disposable diaper according to claim 1 or 2 , wherein an end portion of the slit is formed in a circular shape, a semicircular shape, a T shape, or a Y shape. The pants-type disposable diaper according to any one of claims 1 to 3 , wherein the exterior member is configured so that a basis weight around an end of the slit is higher than that of other portions. A position wherein the male genitalia retrieval opening and the absorbent body and the exterior member overlap, and claim 1-4, which is formed at a position away 30~100mm from the side edge of the absorbent body The underpants type disposable diaper as described in any one of these. The underpants type disposable diaper as described in any one of Claims 1-5 in which the said male instrument extraction opening part is formed in the part corresponding to the width direction center part of the said absorptive main body. The underpants type disposable diaper as described in any one of Claims 1-6 provided with the fastener which can fix the said exterior member and the said absorptive main body near the opening part for said male genital taking-out. The pants-type disposable diaper according to claim 7 , wherein the fastener is a mechanical fastener.

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