JP6452774B1 - Urine absorbing pad, pants, urine absorbing pad manufacturing method and pant manufacturing method - Google Patents

Abstract

A urine absorbing pad, pants, a urine absorbing pad manufacturing method, and a pant manufacturing method capable of preventing urine from bleeding out.
A method for producing a urine absorbing pad (3) includes a step of preparing and laminating a diffusion sheet (30), a waterproof sheet (50) and a water absorbent sheet (40), a polyurethane fiber, and a natural fiber or a chemical fiber. And a step of preparing a band-shaped member (60) having water repellency and stretchability, in a state where the tensile rate in the longitudinal direction of the band-shaped member is 105% or more. And a step of sewing a belt-like member to both ends of the sheet width direction.
[Selection] Figure 3

Description

  The present invention relates to a urine absorbing pad, pants, a method for manufacturing a urine absorbing pad, and a method for manufacturing a pant to cope with unexpected light incontinence or incontinence.

  Conventionally, as underwear for coping with incontinence, there are, for example, Japanese Patent Application Laid-Open No. 2002-360621 (Patent Document 1) and Japanese Patent Application Laid-Open No. 2005-137617 (Patent Document 2).

  Patent Document 1 discloses a urine pad in which a tape fabric that has been subjected to water repellent processing or waterproof processing is sewn around the circumference of an absorbent sheet member, and gathers are provided on both side surfaces that contact both roots.

  Patent Document 2 discloses a urine pad that is sewn around an absorbent sheet with a waterproof or water-repellent tape fabric and sewn in a stretched elastic string.

JP 2002-360621 A JP 2005-137617 A

  In the urine pads of Patent Documents 1 and 2, although the absorbent sheet surrounds the periphery of the absorbent sheet, it is necessary to sew the tape fabric on the absorbent sheet. Therefore, urine sometimes oozes out from the seam of the tape fabric.

  The present invention has been made in order to solve the above-described problems, and has as its object the urine absorption pad, the pants, the urine absorption pad manufacturing method, and the pants capable of preventing the urine from seeping out. It is to provide a manufacturing method.

  A manufacturing method of a urine absorbing pad according to an aspect of the present invention is a manufacturing method of a urine absorbing pad attached to the back surface of a pant fabric, a diffusion sheet that contacts the wearer's body, and a waterproof that contacts the back surface of the pant fabric. A sheet, a water absorbing sheet disposed between the diffusion sheet and the waterproof sheet, and a step of laminating, a polyurethane fiber, and at least one fiber selected from natural fibers or chemical fibers are mixed; A step of preparing a strip-like member having water repellency and stretchability, and a strip-like shape at both ends in the width direction of the laminated diffusion sheet, waterproof sheet and water-absorbent sheet in a state where the longitudinal tensile rate of the strip-like member is 105% or more A content ratio of the polyurethane fiber in the band-shaped member is 3% to 35% on a mass basis, and the fineness of the polyurethane fiber. Is 20 denier or more 60 denier or less.

  Preferably, the belt-like member is a knit, and the number of fibers crossing per inch in the longitudinal direction of the belt-like member is 20 or more and 40 or less.

  Preferably, the belt-shaped member includes polyester fiber.

  Preferably, the belt-shaped member has a longitudinal elongation property that expands and contracts in the longitudinal direction and a lateral elongation property that expands and contracts in a direction crossing the longitudinal elongation.

  The manufacturing method of the underpants according to an aspect of the present invention further includes a step of preparing a pant fabric and attaching a urine absorption pad to the back surface of the pant fabric.

  A urine absorption pad according to an aspect of the present invention is a urine absorption pad attached to the back surface of a pants fabric, a diffusion sheet that contacts the wearer's body, a waterproof sheet that contacts the back surface of the pants fabric, and a diffusion sheet Width of diffusion sheet, waterproof sheet and water absorbent sheet laminated with water absorbent sheet arranged between the sheet and waterproof sheet, water repellency and stretchability, and with a tensile rate in the longitudinal direction of 105% or more A belt-like member sewn at both ends in the direction, the belt-like member is a mixture of polyurethane fiber and at least one fiber selected from natural fibers or chemical fibers, and the content of the polyurethane fiber in the belt-like member is The fineness of the polyurethane fiber is 20 denier or more and 60 denier or less.

  In the pants according to one aspect of the present invention, the urine absorption pad is attached to the back surface of the pant fabric.

  According to the present invention, it is possible to provide a urine absorbing pad, pants, a method for manufacturing a urine absorbing pad, and a method for manufacturing pants that can prevent urine from seeping out.

It is a front view of the underpants which concern on embodiment of this invention. It is a front view of the urine absorption pad attached to the back surface of the pants fabric. It is an illustration sectional view showing the structure of the underpants concerning an embodiment of the invention. It is a schematic diagram which takes out and shows the strip | belt-shaped member in embodiment of this invention. It is a schematic diagram which expands and shows the seam of a strip | belt-shaped member. It is a figure which shows typically the method for confirming the elongation rate of a strip | belt-shaped member. It is a flowchart which shows the manufacturing method of the underpants which concerns on embodiment of this invention.

  Embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

<About pants>
As shown in FIG. 1, the pant 1 includes a pant fabric 2 and a urine absorption pad 3 attached to the back surface of the pant fabric 2. The urine absorbing pad 3 is sewn to the pants 1. The crotch portion 21 of the pant fabric 2 is formed of a waterproof tape, for example. The pant fabric 2 shown in FIG. 1 is for women and is formed of the same shape and material as the pants that are generally used by the wearer for the lower body.

<Urine absorption pad>
The urine absorption pad 3 will be described with further reference to FIGS. The longitudinal direction indicated by arrow A1 in FIG. 2 is referred to as the front-rear direction, and the width direction indicated by arrow A2 is referred to as the left-right direction. The up-down direction indicated by arrow A3 in FIG. 3 is referred to as the thickness direction.

  With particular reference to FIG. 3, the urine absorbing pad 3 is disposed between the diffusion sheet 30 that contacts the body of the wearer, the waterproof sheet 50 that contacts the back surface of the pant fabric 2, and both the sheets 30 and 50. A water-absorbing sheet 40 and a pair of belt-like members 60 sewn to both ends in the width direction of the stacked sheets 30, 40, 50 are provided.

  The diffusion sheet 30 is a material that diffuses and passes urine, and is, for example, a polyester knit material. The diffusion sheet 30 is, for example, a field sensor (registered trademark) manufactured by Toray Industries, Inc. The diffusion sheet 30 may be, for example, a mesh material having a surface tension, or a material having a raised surface that comes into contact with the wearer's body.

  The waterproof sheet 50 is formed of a material that does not allow urine to pass therethrough, for example, a polyurethane film. A sheet having deodorizing properties and antibacterial properties may be disposed between the waterproof sheet 50 and the water absorbent sheet 40.

  The water absorbent sheet 40 is a part that absorbs and holds urine that has been diffused and passed by the diffusion sheet 30 so as not to leak outside. The water absorbent sheet 40 is, for example, a water absorbent urethane sponge having a continuous porous body. The water absorbing sheet 40 is, for example, Soflas (registered trademark) manufactured by Aion Co., Ltd. In addition, the water absorbing sheet 40 may be cotton, for example, and various other absorbent materials may be used.

  With particular reference to FIG. 2, the periphery of the sheets 30, 40, 50 is surrounded by a long belt-like member 60. Specifically, the belt-like member 60 includes left and right belt-like members 60a sewn with seams 61a at both ends in the width direction of the sheets 30, 40, 50 and seams 61b at both ends in the front-rear direction of the sheets 30, 40, 50. And the front and rear belt-like members 60b sewn. The left and right belt-like members 60a and the front and rear belt-like members 60b are sewn so as to intersect each other at the corners of the sheets 30, 40, and 50. Note that the left and right belt-like members 60a and the front and rear belt-like members 60b are separate members for ease of manufacturing, but may be formed integrally. That is, the outer periphery of the sheets 30, 40, 50 may be surrounded by a single band-shaped member 60.

  With further reference to FIGS. 4 and 5, the characteristics of the belt-like member 60 will be described.

  The belt-like member 60 is, for example, a woven fabric or a knitted fabric (knit), but is preferably a knit.

  The strip-shaped member 60 has water repellency. The water repellency means a material that repels water or repels water. The belt-like member 60 has water repellency rather than waterproofness, and thus can prevent urine from bleeding out.

  The band-shaped member 60 has elasticity. Stretching means not only having a stretching force but also having an elastic return force (restoring force). As shown in FIG. 4, the belt-like member 60 has a longitudinal elongation property that expands and contracts in the longitudinal direction and a lateral elongation property that intersects the longitudinal elongation. If the belt-like member 60 is sewed on the sheets 30, 40, 50 in a state where the belt-like member 60 is extended in the vertical direction and the horizontal direction, as shown in FIG. The return force works and the hole of the seam 61 can be contracted. Accordingly, the hole of the seam 61 is in close contact with the sewing thread that passes through the hole, and moisture does not penetrate the hole of the seam 61, so that urine bleeding can be prevented.

  In addition, if the strip | belt-shaped member 60 is extended to the vertical direction, the length of the width direction of the strip | belt-shaped member 60 will become small. For this reason, even if the belt-like member 60 is stretched in the vertical direction and is sewed on the sheets 30, 40, 50, the holes of the seam 61 are in close contact with the sewing thread without any gaps, so that urine seepage can be prevented.

  The elongation rate of the belt-like member 60 should not be too large considering the elastic return force. Therefore, the elongation percentage of the belt-shaped member 60 is 185% or less, preferably 155% or less, and more preferably 145% or less. About the measuring method of the elongation rate of the strip | belt-shaped member 60, it is as follows.

  With reference to FIG. 6, the band-like member 160 used for measuring the elongation rate has a width W of 40 mm and a length L of 520 mm. The upper part of the belt-shaped member 160 is clamped by the upper clip 101, and the lower part of the belt-shaped member 160 is clamped by the lower clip 102 in which the weight 103 is suspended. In this way, the elongation rate of the belt-like member 160 due to the 300 g being applied to the belt-like member 160 is measured. The elongation rate of the belt-like member 60 of the present embodiment refers to the rate of increase in the length of the belt-like member 160 when a 300 g load is applied to the belt-like member 160.

  The elastic stretchability of the belt-like member 60 as described above is exhibited by containing polyurethane fibers. When the belt-like member 60 is formed of only polyurethane fibers, it has a large elastic return force, which is preferable from the viewpoint of preventing urine leakage, but it feels bad when it comes into direct contact with the skin. Therefore, it is preferable that the band-shaped member 60 is a mixture of polyurethane fibers and at least one fiber selected from natural fibers or chemical fibers. Examples of natural fibers include cotton, hemp and silk. Examples of the chemical fiber include polyester, nylon, acrylic, and the like. Since chemical fibers do not absorb urine in the fibers themselves, it is preferable to use chemical fibers rather than natural fibers, and it is more preferable to use polyester fibers.

  If the content rate of the polyurethane fiber is too small, the belt-like member 60 has a small elastic return force and does not have a restoring force (return force) that can make the hole of the seam 61 small. Moreover, when the content rate of a polyurethane fiber is too large, the touch is bad. Therefore, the polyurethane fiber content of the belt-like member 60 is 3% or more and 35% or less, and preferably 5% or more and 32% or less on a mass basis. Since the belt-shaped member 60 has an appropriate elastic return force by having the polyurethane fiber content within this range, the hole of the seam 61 and the sewing thread are in close contact with each other, and urine is prevented from seeping out from the seam 61. be able to. Moreover, the touch becomes good by making the content rate of a polyurethane fiber 35% or less.

  As for the elastic return force of the belt-like member 60, it is not sufficient to consider the polyurethane fiber content described above. That is, even if the polyurethane fiber content is in the above-described range, the belt-like member 60 may have a weak elastic restoring force and shrink the size of the hole of the seam 61 if the polyurethane fiber is too fine. It does not have enough elastic restoring force. Moreover, when the fineness of a polyurethane fiber is too large, the touch is bad. Therefore, the fineness of the polyurethane fibers constituting the belt-like member 60 is 20 denier or more and 60 denier or less, and preferably 20 denier or more and 50 denier or less. When it is 50 denier or less, the touch is improved as compared with the case of 60 denier or less.

  Regarding the elastic return force of the belt-like member 60, it is not sufficient to consider the polyurethane fiber content and the fineness of the polyurethane fiber described above. That is, even if the polyurethane fiber content is in the above range and the fineness of the polyurethane fiber is in the above range, the number of fibers crossing the length of 1 inch in the longitudinal direction of the belt-like member 60 is too small. Then, the elastic return force becomes weak and does not have a restoring force that can shrink the size of the hole of the seam 61 as described above. Further, if the number of fibers crossing the length of the belt-like member 60 per inch in the longitudinal direction is too large, the feel is poor and the comfort is poor. Therefore, the number of fibers crossing the length of the belt-shaped member 60 per inch in the longitudinal direction is 20 or more and 40 or less, and preferably 28 or more and 36 or less. The belt-like member 60 having 20 to 40 fibers crossing one inch in the longitudinal direction is, for example, a knit.

  For convenience, the number of fibers crossing the length of 1 inch in the longitudinal direction of the belt-shaped member 60 is described. However, since the belt-shaped member 60 is obtained by weaving fibers vertically and horizontally, the short length of the belt-shaped member 60 is reduced. The number of fibers crossing per inch of length in the hand direction is also the same as the number of fibers crossing per inch of length in the longitudinal direction.

<About manufacturing method of urine absorption pad>
With reference to FIG. 7, the manufacturing method of the urine absorption pad 3 of this Embodiment is demonstrated.

  First, the diffusion sheet 30, the waterproof sheet 50, and the water absorbing sheet 40 are prepared and laminated (S1). Specifically, these sheets 30, 40, 50 are cut into substantially the same shape, and the diffusion sheet 30, the water absorbent sheet 40, and the waterproof sheet 50 are laminated in this order from above. Next, a long strip member 60 is prepared (S2). Specifically, left and right belt-like members 60a and front and rear belt-like members 60b that are longer in the longitudinal direction than the left and right belt-like members 60a are prepared.

  The belt-like member 60 is sewed on the stacked sheets 30, 40, 50. Specifically, the front and rear belt members 60b are sewn to the front end and the rear end of the stacked sheets 30, 40, 50 with a sewing machine. Next, the left and right belt-like members 60a are sewn to both ends in the width direction of the laminated sheets 30, 40, 50 in a state where the tensile rate in the longitudinal direction of the left and right belt-like members 60a is 105% or more (S3). Specifically, in a state in which one end of the left and right belt-like members 60a is pressed and fixed with a sewing machine, the other end is pulled so that the tensile rate in the longitudinal direction of the front and rear belt-like members 60b is 105% or more. The sheet 30, 40, 50 is sewn to both ends in the width direction with a sewing machine.

  The left and right belt-like members 60a are sewn in a state where the tensile rate in the longitudinal direction is set to 105% or more, and is sewn in a state where it is set to 106% or more in consideration of shrinking the hole of the seam 61a to make it small. It is preferable that it is sewn in a state of 120% or more. Further, if elastic return force in the vertical direction and the horizontal direction is applied to the hole of the seam 61a, the belt-like member 60 is pulled in the longitudinal direction and sewn on the sheets 30, 40, 50 in the state of being pulled in the left-right direction. It is preferable to attach.

  In addition, if the strip | belt-shaped member 60 is pulled in a longitudinal direction, the hole of the seam 61a will shrink | contract naturally in a longitudinal direction and the left-right direction. For this reason, even if the belt-like member 60 is stretched in the vertical direction and is sewed on the sheets 30, 40, 50, the holes of the seam 61 are in close contact with the sewing thread without any gaps, so that urine seepage can be prevented.

  When the pants 1 are manufactured, the urine absorption pad 3 manufactured by the above-described method may be sewn to the pant fabric 2. Preferably, only the front end portion and the rear end portion of the urine absorption pad 3 are sewn to the pant fabric, and the urine absorption pad 3 is sewn in a hammock state. As one form, the upper end part and lower end part of the urine absorption pad 3 are sewn on the pant cloth 2. As another form, in order to float the whole urine absorption pad 3, the upper end part and lower end part of the urine absorption pad 3 are sewn on the trunk | drum part of the underpants fabric 2 through an auxiliary | assistant cloth | dough. In this case, it is preferable to use the cloth used for the belt-shaped member 60 as the auxiliary cloth.

  When incontinence is carried out by wearing the urine absorption pad 3 according to the present embodiment, urine passes through the diffusion sheet 30 while spreading in the diffusion sheet 30, is absorbed by the water absorbent sheet 40, and urine that is not absorbed by the water absorbent sheet 40 is It reaches the waterproof sheet 50 and is also absorbed from below the water absorbent sheet 40. Since the inventor sews the sheet 30, 40, 50 on which the belt-like member 60 is laminated and the seam 61, in the conventional belt-like member having simply water repellency and stretchability, the urine is stained through the seam 61. It has been found that the urine may come out, and it has been found that urine can be prevented from seeping out from the seam 61 if the characteristics of the belt-like member 60 are within the following range.

  That is, the belt-like member 60 in the present embodiment is (1) sewn to both longitudinal ends of the laminated sheets 30, 40, 50 in a state where the tensile rate in the longitudinal direction is 105% or more. (2) The polyurethane fiber and at least one fiber selected from natural fibers or chemical fibers are mixed, and (3) the polyurethane fiber content is 3% or more and 35% or less on a mass basis. (4) Since the fineness of the polyurethane fiber is not less than 20 denier and not more than 60 denier, the belt-like member 60 has an elastic return force, so that the hole of the seam 61 is in close contact with the sewing thread without moisture. Do not penetrate the hole in the seam 61. Thereby, the urine absorption pad 3 according to the present embodiment can prevent urine from seeping out.

  In the above embodiment, the shape and arrangement of the urine absorption pad 3 may be changed so as to be suitable for men's pants. When used for trunks, it is preferable to suspend the urine absorbing pad 3 on the pants fabric in a hammock state.

  Further, although the belt-like member 60 has been described as being sewn in a state of being stretched in the vertical direction and the horizontal direction, it is sufficient that the belt-like member 60 is sewn in a state of being stretched in the vertical direction. This is because if the sewing is performed in a state of being stretched in the vertical direction, an elastic return force in the vertical direction works, and the size of the hole of the seam 61 can be reduced. In addition, if the strip | belt-shaped member 60 is extended to the vertical direction, the length of the width direction of the strip | belt-shaped member 60 will become small. Therefore, by simply sewing the belt-shaped member 60 to the sheets 30, 40, and 50 with the belt-shaped member 60 stretched in the vertical direction, the hole of the seam 61 is in close contact with the sewing thread without gaps, so that urine bleeding can be prevented.

  EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated in detail, this invention is not limited to these.

(Examples 1-4)
All the strip-shaped members of Examples 1 to 4 in Table 1 had water repellency, and polyurethane fibers and chemical fibers or natural fibers were mixed. Specifically, in the belt-like member of Example 1, polyurethane fibers were mixed at a ratio of 18% and polyester fibers at a ratio of 82%. In the band-shaped member of Example 2, polyurethane fibers were mixed at a ratio of 5% and cotton fibers at a ratio of 95%. In the band-shaped member of Example 3, polyurethane fiber was mixed at a ratio of 32% and nylon fiber at a ratio of 68%. In the band-shaped member of Example 4, polyurethane fibers were mixed at a ratio of 17% and polyester fibers at a ratio of 83%.

  Regarding the presence or absence of water repellency, those having water repellency are indicated by “◯”, and those having no water repellency are indicated by “x”. The number per 1 inch indicates the number of fibers crossing 1 inch in the longitudinal direction of the belt-shaped member. Regarding the presence or absence of an elastic force, those having an elastic return force are indicated by “◯”, and those having no elastic return force are indicated by “X”. The elongation rate of Examples 1 to 4 was measured by the method described above (FIG. 6).

(Comparative Example 1)
Comparative Example 1 did not have water repellency, only water resistance, the surface was formed of a polyurethane film, and the back surface was formed of polyester fibers. That is, the comparative example 1 was a two-layer structure of a polyurethane film and polyester. Comparative Example 1 has an elongation of 111.0% but does not have an elastic return force. The elongation percentage of Comparative Example 1 was measured by the method described above (FIG. 6).

(Comparative Examples 2 to 4)
Comparative Examples 2 to 4 had water repellency and were composed of one type of fiber. Comparative Examples 2 and 3 had a cotton content of 100%, and Comparative Example 4 had a polyester content of 100%. Moreover, although the elongation rate of Comparative Examples 2 and 3 is 121.7% and the elongation rate of Comparative Example 4 is 108%, none of them has an elastic return force. The elongation of Comparative Examples 2 to 4 was measured by the method described above shown in FIG. 6 (FIG. 6).

  An experiment was conducted using a band-shaped member having the characteristics shown in Table 1. Specifically, the diffusion sheet, the water absorbing sheet, and the waterproof sheet were cut into a size of 80 mm × 150 mm, and the diffusion sheet, the water absorbing sheet, and the waterproof sheet were laminated from above. The peripheries of these sheets were enclosed and sewn with a band-shaped member shown in Table 1 to prepare a urine absorption pad used in the experiment. When the belt-like member was sewn on the laminated sheets, the tensile rate in the longitudinal direction was varied as described below.

  The experiment of the bleeding prevention property of the prepared urine absorption pad was performed as follows. 5 ml of physiological saline (sodium chloride 0.9%) warmed to 37 degrees from above the prepared urine absorption pad was injected. After leaving for 1 minute, a 10 cm × 10 cm plate and a 2 kg weight were placed on the urine absorbing pad and left in that state for 1 minute. Thereafter, it was visually confirmed whether or not the physiological saline oozed out from the seam of the belt-like member, and the same operation was performed until the oozing could be confirmed.

  Table 2 shows the experimental results of the anti-bleeding characteristics of the absorbent pads using the strip members of Examples 1 to 4 and Comparative Examples 1 to 4 having the characteristics of Table 1.

  Referring to Table 2, the tensile rate of about 100% indicates a state in which the belt-like member is sewn with almost no pulling in the longitudinal direction, and 96% to 108% of the belt-like members of Experimental Examples 2 and 4 and Comparative Examples 1 to 4. The tensile rate in the range of% is shown. The tensile rate of about 120% indicates a state in which the belt-like member is slightly pulled and sewn in the longitudinal direction, and shows a tensile rate in the range of 115% to 126% of the belt-like members of Experimental Examples 1 to 4 and Comparative Examples 1 to 4. ing. The tensile rate of about 130% indicates a state in which the belt-like member is pulled and sewn in the longitudinal direction, and shows the tensile rate of the belt-like members of Experimental Examples 1 to 3. The tensile rate of about 150% indicates a state in which the belt-like member is further pulled and sewn in the longitudinal direction, and the tensile rate of the belt-like member of Experimental Example 1 is 157%. The injection amount indicates the injection amount in which the bleeding was confirmed from the seam when the urine absorption pad was prepared by sewing at each pulling rate.

(Evaluation results)
First, focus on Example 1. The band-shaped member of Example 1 has water repellency, and is mixed with polyurethane fiber at a ratio of 18% and polyester fiber at a ratio of 82%. Each fiber has a fineness of 30 denier and has a length in the longitudinal direction. The number of fibers crossing per inch is 32, the elongation is 181%, and it has elastic return force.

  Focus on Example 2. The band-shaped member of Example 2 has water repellency, is a mixture of 5% polyurethane fiber and 95% cotton fiber, the polyurethane fiber has a fineness of 20 denier, and the cotton fiber has a fineness of 40 denier. The number of fibers crossing one inch in the longitudinal direction is 28, the elongation is 143.3%, and it has an elastic return force.

  Note Example 3. The band-shaped member of Example 3 has water repellency, polyurethane fiber is mixed at a ratio of 32%, and nylon fiber is at a ratio of 68%. All the fibers have a fineness of 30 denier, and the length in the longitudinal direction is 1 The number of fibers crossing per inch is 36, the elongation is 152%, and it has elastic return force.

  Note Example 4. The band-shaped member of Example 4 has water repellency, and is mixed with polyurethane fiber at a ratio of 17% and polyester fiber at a ratio of 83%. Each fiber has a fineness of 50 denier, and has a longitudinal length of 1 The number of fibers crossing per inch is 32, the elongation is 123%, and it has elastic return force.

  Referring to Table 1, Comparative Examples 1 to 4 in which the belt-like members of Examples 1 to 4 including two types of fibers of polyurethane and polyester, nylon, or cotton include only one type of fiber of polyester or cotton. It was found that the elongation rate was larger than that of the band member.

  Referring to Table 2, in the band-shaped members of Examples 1 to 4 including two kinds of fibers of polyurethane and polyester, nylon, or cotton, the stain of 20 cc was infused except for the tensile rate of 100% in Example 2. It does not come out and does not bleed up to 50cc injection. On the other hand, it was found that in Comparative Examples 1 to 4 containing only one type of polyester or cotton fiber, the fibers exude with 10 cc injection.

  Comparing only Examples 1 to 4, Example 2 oozes out by injection of 10 cc when the tensile rate is 100%, whereas Example 4 is 50 cc even when the tensile rate is 106%. It was found that there was no oozing out even after the injection.

  Examples 1 and 3 having a fineness of 30 denier are compared. Example 1 contains 18% polyurethane and has an elongation of 181%, whereas Example 3 has a polyurethane of 32% and an elongation of 152%. Since elasticity is so large that elongation rate is small, it is estimated that elasticity is so large that the content rate of a polyurethane is large.

  Examples 1 and 4 having similar polyurethane contents are compared. Example 1 has a polyurethane content of 18%, and Example 4 has a polyurethane content of 17%. Example 1 has a fineness of 30 denier and an elongation of 181%, while Example 4 has a fineness of 50 denier and an elongation of 123%. Since the elastic return force increases as the elongation rate decreases, it is estimated that the elastic return force increases as the fineness increases.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  1 pants, 2 pants fabric, 3 urine absorption pad, 21 crotch area, 30 diffusion sheet, 40 water absorbent sheet, 50 waterproof sheet, 60 band member, 60a left and right band member, 60b front and rear band member, 61 seam, 101 upper clip, 102 Lower clip, 103 weight, 160 strip.

Claims (7)

A method for producing a urine absorbing pad to be attached to the back of a pant fabric,
A step of preparing and laminating a diffusion sheet that contacts the wearer's body, a waterproof sheet that contacts the back surface of the pants fabric, and a water absorbent sheet disposed between the diffusion sheet and the waterproof sheet;
A step in which a polyurethane fiber and at least one fiber selected from natural fibers or chemical fibers are mixed, and a band-shaped member having water repellency and stretchability is prepared;
A step of sewing the belt-like member to both end portions in the width direction of the diffusion sheet, the waterproof sheet, and the water-absorbing sheet, in a state where the tensile rate in the longitudinal direction of the belt-like member is 105% or more,
The polyurethane fiber content of the band-shaped member is 3% to 35% on a mass basis,
The method for producing a urine absorbing pad, wherein the fineness of the polyurethane fiber is 20 denier or more and 60 denier or less. The belt-like member is a knit,
The method for producing a urine absorbing pad according to claim 1, wherein the number of fibers crossing the length of 1 inch in the longitudinal direction of the belt-shaped member is 20 or more and 40 or less.   The urine absorption pad manufacturing method according to claim 1, wherein the belt-shaped member includes a polyester fiber.   The said strip | belt-shaped member is a manufacturing method of the urine absorption pad in any one of Claims 1-3 which has the longitudinal stretch property expand | contracted in a longitudinal direction, and the lateral stretch property expand | contracted in the direction which cross | intersects the said longitudinal stretch.   A method for producing pants, comprising the step of preparing the pant fabric and attaching the urine absorption pad according to any one of claims 1 to 4 to the back surface of the pant fabric. A urine absorption pad attached to the back of the pants fabric,
A diffusion sheet that contacts the wearer's body;
A waterproof sheet in contact with the back surface of the pants fabric;
A water absorbent sheet disposed between the diffusion sheet and the waterproof sheet;
A belt-like member that has water repellency and stretchability and is sewn to both ends in the width direction of the diffusion sheet, the waterproof sheet, and the water absorbent sheet that are laminated in a state where the tensile rate in the longitudinal direction is 105% or more. Prepared,
The band-shaped member is a mixture of polyurethane fibers and at least one fiber selected from natural fibers or chemical fibers,
The polyurethane fiber content of the band-shaped member is 3% to 35% on a mass basis,
The urine absorption pad, wherein the fineness of the polyurethane fiber is 20 denier or more and 60 denier or less.   The pants which have attached the urine absorption pad of Claim 6 to the back surface of the said pants cloth.

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