JP2008237231A - Urine absorbing pad - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a urine absorbing pad which stably keeps a disposal mode in the form of a roll-up shape. <P>SOLUTION: The urine absorbing pad 10 is equipped with a surface sheet 11, a back side sheet 12, and an absorber 13 and is used by providing on the inside of an outer material. The pad 10 is engaged with the surface sheet 11 in the disposal state that the pad 10 is rolled up along the longitudinal direction to have the surface sheet 11 in the inside, and an engaging member 17 keeping the disposal state is provided on the back side sheet 12 in the central region in the longitudinal direction of the pad 10 in a manner to extend in the longitudinal direction of the pad 10. A length of the engaging member 17 is at least 1/5 relative to the entire length of the longitudinal direction of the pad 10. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a urine collecting pad that is used while being disposed inside an outer.

  In recent years, for the purpose of reducing the economical and labor burden associated with urine treatment, a urine removing pad has been used and is mounted inside a disposable diaper. The urine absorbing pad is used for absorbing and holding urine incontinence by an elderly person or a sick person, for example, in a state of being placed on a surface sheet of a disposable diaper. When the amount of excreted urine is relatively small, it is sufficient to replace only the urine collecting pad, and no diaper replacement is necessary. That is, the purpose of using the urine absorbing pad is to reduce the frequency of changing disposable diapers.

  Another purpose of using a urine pad is when wearing disposable diapers for a long time such as at night, and because the amount of urine excreted is large, urine cannot be absorbed by diapers alone. Furthermore, it is to assist absorption of urine by a diaper by using it together with a diaper. For this reason, some urine absorbing pads are provided with an adhesive tape as a means for firmly fixing the urine collecting pad to the disposable diaper.

  When replacing the urine collection pad, the urine collection pad is peeled off from the disposable diaper and discarded. In this case, the used urine removing pad cannot be rolled up and discarded unlike a disposable diaper of a tape type or a pants type. That is, the tape-type diaper can maintain the rounded state by sticking the tape part to the back sheet lastly after rounding. In the case of a pants-type diaper, a waste tape is usually attached to the diaper separately, and the waste tape can be used to maintain a rolled state. On the other hand, in the conventional urine removing pads, the slip prevention tape made of hot melt adhesive is only attached to the back side of the pad on the stomach side or the back side of the stomach side and back side. . Since this anti-slipping tape is not intended for the disposal of the pad, the pad in a rolled state cannot be fixed and discarded using this anti-slipping tape. In addition, when a non-adhesive tape made of adhesive is attached to almost the entire surface of the pad, it can be discarded in a rolled state, but it will be handled in such a way that the release sheet that protects it becomes larger and a large amount of dust is generated. It becomes difficult. In addition, when only an anti-slipping tape made of an adhesive is used, there is a problem that the adhesive surface is stained with the constituent fibers and urine of the nonwoven fabric during use of the pad and does not adhere well and cannot be discarded.

  Patent Document 1 describes a light incontinence pad for men provided with a fixed tape and a combination tape for fastening and disposal on a flat heart-shaped pad. This combination tape for fastening and disposal is a combination tape for rounding the pad to wrap the penis and for discarding the pad. However, this tape is not used to roll the pad toward the top sheet and discard it. In addition, this pad has a shape specific to a male light incontinence pad.

  Patent Document 2 describes that when a urine collecting pad is rolled and discarded, the rolled urine collecting pad is fixed with a rubber band. The rubber band is bonded and fixed to the back sheet surface of the urine absorbing pad at two points, thereby causing a slip prevention function by utilizing the sliding frictional force of the rubber band, and maintaining the pad disposal form. Therefore, the disposal form is not maintained just by rolling the pad, but in order to maintain the disposal form, an operation of fixing with a rubber band is necessary, and it takes time and effort. In addition, the rubber band is not sufficiently offset.

  Patent Document 3 discloses an inner article that has an anti-separation portion that is divided so as to avoid an area corresponding to the crotch, that is securely fixed to the outer portion, and that an adhesive or the like does not adhere in the width direction at the inseam. A shift prevention structure is described. This misalignment prevention structure is intended to prevent misalignment of the inner article, and is not considered until disposal. Therefore, it is difficult to use the split slip prevention tape described in the same document as a disposal tape.

Patent Document 4 describes a waste tape that can easily process an article by imparting elasticity to the waste tape by elastic deformation. This disposal tape is used only for the disposal of articles, and is not intended for both the prevention of slipping to the outer and the disposal of articles.
JP 2003-52729 A JP 2002-119528 A JP 2005-143878 A JP 2002-320637 A

  Accordingly, an object of the present invention is to provide a urine absorption pad that can eliminate the above-mentioned drawbacks of the prior art.

The present invention comprises a top sheet, a back sheet, and an absorbent body interposed between both sheets, in a urine picking pad used by being arranged on the inner side of the outer,
An engaging member that extends in the longitudinal direction of the pad is engaged with the topsheet in the discarded state in which the pad is wound up along the longitudinal direction so that the topsheet is inside, and can maintain the discarded state. As described above, it is arranged on the back sheet in the central region in the longitudinal direction of the pad,
A urine absorbing pad is provided in which the length of the engaging member is at least 1/5 of the overall length in the longitudinal direction of the pad.

  According to the present invention, the pad can be put into a discarding form and maintained in a simple operation by simply rolling up the used pad along the longitudinal direction to the surface sheet side.

  The present invention will be described below based on preferred embodiments with reference to the drawings. FIG. 1 shows a perspective view of one embodiment of the urine absorbing pad of the present invention. FIG. 2 shows a cross-sectional view taken along the line II-II in the central region in the longitudinal direction of the pad of FIG. 1 and 2 includes a top sheet 11, a back sheet 12, and an absorbent body 13 interposed between the two sheets. The urine collecting pad 10 of the present embodiment shown in FIGS. It has a shape. In the wearing state of the pad 10, the top sheet 11 is located on the side close to the wearer's skin, and the back sheet 12 is located on the side far from the wearer's skin.

  On the side of the top sheet 11 in the pad 10, a pair of leak-proof cuffs 14, 14 extending in the longitudinal direction of the pad 10 are disposed on both left and right sides of the pad 10. Of the two sides extending in the longitudinal direction of the leak-proof cuff 14, the side located on the outer side in the width direction of the pad 10 is joined to the surface sheet 11 to form a fixed end 14a. On the other hand, the side located on the inner side in the width direction of the pad 10 is a free end 14b. An elastic member 15 such as rubber thread is fixed to the free end 14b in an extended state along the free end 14b. In the state in which the pad 10 is stretched, the leak-proof cuff 13 lies down and covers both the left and right sides of the topsheet 11, but in the state in which the pad 10 is worn, the elastic member 15 contracts and leak-proof The cuff 14 stands upward from the top sheet 11. This forms a barrier against excrement such as urine from leaking from the lateral direction of the pad 10.

  As the surface sheet 11 in the pad 10, the same type of material conventionally used for this type of urine collecting pad can be used without particular limitation. Specifically, a sheet material having liquid permeability can be used. Examples thereof include various nonwoven fabrics and perforated films. Considering the ease of engagement with the engagement member 17 described later, it is preferable to use a nonwoven fabric as the top sheet 11.

  As the nonwoven fabric used as the top sheet 11, those manufactured by various methods can be used. Examples thereof include air-through nonwoven fabric, spunbond nonwoven fabric, spunlace nonwoven fabric, chemical bond nonwoven fabric, needle punched nonwoven fabric, melt blown nonwoven fabric, and composites of these nonwoven fabrics. When the fibers constituting the nonwoven fabric are not hydrophilic, it is possible to improve the liquid permeability by applying a hydrophilic treatment to the fibers before the nonwoven fabric is manufactured or by applying a hydrophilic treatment to the manufactured nonwoven fabric. It is preferable from the viewpoint. Examples of the fibers constituting the nonwoven fabric include polyolefin fibers such as polyethylene and polypropylene, polyester fibers such as polyethylene terephthalate and polybutylene terephthalate, polyamide fibers, acrylic fibers, and cellulose fibers.

  As the back sheet 12 in the pad 10, for example, a liquid-impermeable or water-repellent sheet or a liquid-permeable sheet can be used. When the back sheet 12 is liquid-impermeable or water-repellent, urine or the like excreted by the pad 10 is mainly absorbed by the absorbent body 14 provided in the pad 10. When the back sheet 12 is liquid permeable, a part of the urine excreted by the pad 10 is absorbed by the absorber 14 provided in the pad 10. Urine or the like that has passed through the back sheet 12 is absorbed by an outer such as a disposable diaper that is used in combination with the pad 10. Examples of the liquid-impermeable or water-repellent sheet include synthetic resin films, spunbond-meltblown-spunbond (SMS) nonwoven fabrics, and SMMS nonwoven fabrics. As the liquid-permeable sheet, the same material as that described above can be used as the material used for the top sheet 11.

  The absorbent body 13 in the pad 10 is composed of a liquid absorbent fiber material, a mixture of a liquid absorbent fiber material and a super absorbent polymer, a sheet in which an absorbent paper and a super absorbent polymer are integrated (for example, the tip of the present applicant). Japanese Patent Application Laid-Open No. 8-246395) related to the above application. These may be wrapped with an absorbent paper such as tissue paper to improve the shape retention. Examples of the liquid absorbent fiber material include tow obtained by aligning fluff pulp and hydrophilic long fibers in one direction.

  The pad 10 is used in combination with an outer, and is disposed and used inside the outer. The outer according to the present invention broadly includes wearing articles that can be attached and fixed to the body by themselves. Examples thereof include disposable diapers, diaper covers, cloth diapers and the like. The pad 10 is arranged on the inner side of the outer so that the center area in the longitudinal direction is located at the crotch part (excretion site) of the wearer. As shown in FIG. 1, the pad 10 disposed on the inner side of the outer side is placed on the back sheet 12 of the pad 10 from the viewpoint of preventing the position of the pad 10 from being displaced in the outer side during the mounting. The fixing means 16 for fixing to is arranged. The fixing means 16 can be comprised from the adhesive agent apply | coated on the back surface sheet 12, the hook member of a hook-and-loop fastener, etc., for example. When the fixing means 16 is made of an adhesive, a release paper is attached to the surface of the adhesive in a state before use of the pad 10 so that the adhesiveness of the adhesive is not impaired. .

  In the present embodiment, the fixing means 16 is provided at one place in the front area of the pad 10 in the longitudinal direction. However, the position where the fixing means 16 is provided is not limited to this. For example, the fixing means 16 may be provided in the rear region of the pad 10 in the longitudinal direction, or may be provided in each of the front region and the rear region.

  The pad 10 after absorbing excrement such as urine is removed from the inner side of the outer and discarded. On the other hand, if the dirt is not so severe, the outer can be used by replacing the pad 10 with a new one. When discarding the pad 10, as shown in FIGS. 3A and 3B, the pad 10 is moved along the longitudinal direction from one end to the other end in the longitudinal direction so that the topsheet 11 is located inside. Roll up to form a roll-shaped waste form. The pad 10 of the present embodiment is characterized in that a roll-like discarding form is maintained only by performing this winding operation. The details are as follows.

  In the pad 10, as shown in FIG.2 and FIG.4, the engaging member 17 is distribute | arranged on the back surface sheet 12 of the longitudinal direction center area. The engaging member 17 can be engaged with the topsheet 11 in the discarded state in which the pad 10 is wound up along the longitudinal direction so that the topsheet 11 is on the inside, and the discarded state can be maintained. In the state where the pad 10 on which the engaging member 17 is arranged is completely wound up, as shown in FIG. 3C, the engaging member 17 faces and abuts against the topsheet 11, and the engaging member 17 is on the surface. Engages with the sheet 11. As a result, the disposal form wound up in a roll shape is easily maintained.

  As described above, in this embodiment, the disposal form of the pad 10 is maintained by the engaging force of the engaging member 17. It is also possible to maintain the waste form by using an adhesive force using an adhesive, in which case the adhesive becomes dirty with fibers and urine during use of the pad, There is a risk of damage. Therefore, in the present embodiment, the discarding form is maintained by using an engaging force that does not have the fear.

  From the viewpoint of reliably maintaining the disposal configuration shown in FIG. 3C, an engagement member 17 having an engagement force with the top sheet 11 of 5 cN / 10 mm or more, particularly 8 cN / 10 mm or more, particularly 10 cN / 10 mm or more. It is preferable to use it. There is no particular limitation on the upper limit value of the engaging force, and it is preferably as high as possible. However, if the upper limit value is as high as about 20 cN / 10 mm, the waste form wound up in a roll shape can be reliably maintained. The engagement force can be controlled by adjusting the shape of the engagement member 17 and the width of the engagement member 17.

  The engagement force is measured by the following method. A surface sheet is cut out from the pad 10 in a size of 50 mm width × 150 mm length, and this is used as a measurement piece. In this case, when the absorbent paper or the like is bonded to the lower side of the top sheet, the measurement piece may be cut out with the absorbent paper or the like attached. When the pad is small and the measurement piece cannot be cut out with the above-mentioned size, the maximum length and / or the maximum width is taken as the size of the measurement piece. Separately, the engaging member is cut into a size of 10 mm width × 150 mm length. And the length direction of a measurement piece and the length direction of an engaging member are made to correspond, and both are piled up. Under this condition, a 1 kg roller having a width of 25 mm is reciprocated once to engage them. Next, one end of the measurement piece and one end of the engagement member are attached to the chuck of the tensile tester. The distance between chucks is 50 mm. Both are peeled at a speed of 300 mm / min until the distance between chucks becomes 200 mm. The maximum average load (cN / 10 mm) obtained there is taken as the engagement force.

  The engagement member 17 is located at least in the center region in the longitudinal direction of the pad 10. By disposing the engaging member 17 at this position, the pad 10 can be successfully wound in any direction from the front region to the rear region and from the rear region to the front region. It becomes possible to maintain the disposal form. Further, the disposal form of the pad 10 can be maintained by the engagement member 17 having the minimum necessary length described below. In addition, the engaging member 17 should just be located in the longitudinal direction center area | region of the pad 10, and may extend to the longitudinal direction front part area and / or rear part area | region of the pad 10 in addition to this.

  The engaging member 17 extends in the longitudinal direction of the pad 10 at the center in the width direction of the pad 10. The length of the engaging member 17 needs to be at least 1/5 with respect to the entire length of the pad 10 in the longitudinal direction. When the length of the engaging member 17 is shorter than this, when the pad 10 is wound up from one end in the longitudinal direction toward the other end, the engaging member 17 and the top sheet 11 are in the completed state. There is a possibility that it may not face or abut. If the length of the engaging member 17 is the same as the length of the pad 10, the engaging member 17 reliably faces and abuts against the topsheet 11 in the state where the winding is completed. However, the amount of use of the engaging member 17 is increased by that amount, which is not economical. Therefore, the length of the engaging member 17 is 1/5 to 3/5, particularly 1/5 to 2/5 with respect to the length of the pad 10 in terms of economy and in the state where the winding is completed. The engaging member 17 is preferable from the viewpoint of reliably facing and abutting against the top sheet 11.

  The engaging member 17 extends continuously in the longitudinal direction of the pad 10. However, the shape of the engaging member 17 is not limited to this, and may be intermittently extended as long as the disposal form of the pad 10 can be maintained. When the engaging member 17 extends intermittently, the length of the engaging member 17 described above does not mean the length of the individual engaging member, but the entire assembly of the individual engaging members. It means the apparent length. Further, although the engaging member 17 extends linearly, a corrugated engaging member may be arranged so as to extend in the longitudinal direction of the pad 10 instead of or in addition to this.

  The width of the engaging member 17 is not particularly limited, but if the width is excessively increased, the rigidity of the engaging member 17 becomes too high, and it may be difficult to perform the operation of winding the pad 10. As will be described later, when the engaging member 17 has a function as an auxiliary means for fixing the pad 10 and the outer, the fixing force of the pad 10 to the outer becomes too high, and the pad 10 is discarded. It may be difficult to remove the pad 10 from the outer. From these viewpoints, it is preferable that the engaging member 17 has an elongated shape as shown in FIG. Although depending on the specific structure of the engaging member 17, the width of the engaging member 17 is preferably narrower than the width of the fixing means 16 shown in FIG. 4, and is particularly 5 to 15 mm, especially 10 to 15 mm. Is preferred.

  As the engagement member 17, a material that can be engaged with the topsheet 11 is used. When the surface sheet 11 is made of a sheet of fiber material such as a nonwoven fabric, a hook member of a hook-and-loop fastener can be used as the engaging member 17. When a hook member of a hook-and-loop fastener is used, a hook shape, a mushroom shape, or an arrowhead shape can be used.

  The engaging member 17 is preferably capable of assisting in fixing the pad 10 and the outer. As a result, when the pad 10 is arranged inside the outer, the positional displacement of the pad 10 is further less likely to occur due to the fixing by the fixing means 16. For this purpose, when the inner side of the outer is made of a sheet of fiber material, the engaging member 17 is preferably made of the hook member of the hook-and-loop fastener described above. Since the fixing of the pad 10 and the outer by the engaging member 17 supplements the fixing by the fixing means 16, the fixing force of the engaging member 17 with respect to the outer may be lower than the fixing force of the fixing means 16 with respect to the outer. . This fixing force is measured by a method similar to the method for measuring the engaging force between the engaging member 17 and the top sheet 11 of the pad 10.

  As mentioned above, although this invention was demonstrated based on the preferable embodiment, this invention is not restrict | limited to the said embodiment. For example, in the embodiment, the engagement member 17 extends in the longitudinal direction of the pad 10, but instead, the engagement member 17 extends in the longitudinal direction of the pad 10 as shown in FIG. 5. A plurality of them may be arranged in parallel. By disposing the engaging member 17 in this way, the disposal form of the pad 10 can be more reliably maintained. In addition, the displacement of the pad 10 disposed on the inner side of the outer layer is more difficult to occur. In the figure, the lengths and / or widths of the engaging members 17 are the same, but the lengths and / or widths of the engaging members 17 may be different.

  Hereinafter, the present invention will be described in more detail with reference to examples. However, the scope of the present invention is not limited to such examples.

[Example 1]
A hook member of a hook-and-loop fastener is attached to the back sheet of “Relief (registered trademark) antibacterial deodorizing and urine removing pad super safe absorption” which is a urine removing pad manufactured by Kao Co., Ltd. I got a pad. The top sheet 11 of the urine absorbing pad was composed of an air-through nonwoven fabric made of a core-sheath type composite fiber. The fixing means 16 was formed by applying a hot melt adhesive in a 40 mm × 50 mm rectangular shape on the back sheet. The total length in the longitudinal direction of the pad was 540 mm, the length of the hook member was 120 mm, and the width was 10 mm. As the hook member, a hook tape (1600 × 1 inch × 1 inch) manufactured by Sumitomo 3M Co. was used. The engaging force between the hook member and the top sheet was 16 cN / 10 mm. When the obtained urine collecting pad was rolled up by the procedure shown in FIG. In addition, when this pad was placed on the inside of a disposable diaper (Relief (registered trademark) manufactured by Kao Corporation) as an outer, the pad was not misaligned during the wearing.

[Example 2]
A urine collecting pad having the form shown in FIG. 5 was obtained in the same manner as in Example 1 except that two hook members having a length of 120 mm and a width of 5 mm were used. When the obtained urine collecting pad was rolled up by the procedure shown in FIG. 3 to form a disposal form, the maintenance of the disposal form was good. When this pad was placed on the inside of a disposable diaper (Relief (registered trademark) manufactured by Kao Corporation) as an outer, it was not observed that the pad was misaligned.

[Comparative Example 1]
A urine absorbing pad having the form shown in FIGS. 1 to 3 was obtained in the same manner as in Example 1 except that one hook member having a length of 90 mm and a width of 10 mm was used. When the obtained urine collection pad was rolled up in the procedure shown in FIG. 3 to form a disposal form, the wound-up state was released and opened.

It is a perspective view which shows one Embodiment of the urine picking pad of this invention. It is the II-II sectional view taken on the center area of the longitudinal direction in the pad shown in FIG. It is a figure which shows the procedure which rolls up the urine collection pad shown in FIG. 1, and forms a disposal form. It is the top view which looked at the urine collection pad shown in FIG. 1 from the back surface sheet side. It is the top view (equivalent figure of FIG. 4) which looked at another embodiment of the urine picking pad of this invention from the back surface sheet side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Urine collection pad 11 Top sheet 12 Back sheet 13 Absorber 14 Leak-proof cuff 15 Elastic member 16 Fixing means

Claims (4)

In the urine picking pad that is used by being disposed on the inner side of the outer, comprising an absorbent body interposed between the front sheet, the rear sheet and both sheets,
An engaging member that extends in the longitudinal direction of the pad is engaged with the topsheet in the discarded state in which the pad is wound up along the longitudinal direction so that the topsheet is inside, and can maintain the discarded state. As described above, it is arranged on the back sheet in the central region in the longitudinal direction of the pad,
A urine absorption pad in which the length of the engagement member is at least 1/5 of the overall length in the longitudinal direction of the pad.   The urine absorbing pad according to claim 1, wherein the engaging member has an engaging force with the top sheet of 5 cN / 10 mm or more.   A fixing means for fixing the pad to the outer is disposed on the front area in the longitudinal direction of the pad, or on the back sheet of the front area and the rear area, and the pad and the outer as the engaging member The urine absorption pad according to claim 1 or 2, wherein a member capable of assisting fixation is used.   The urine absorption pad according to any one of claims 1 to 3, wherein a plurality of the engaging members are arranged in parallel so as to extend in a longitudinal direction of the pad.

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