Urine absorption pad system for men

Abstract

A urine absorption pad for preventing leakage of urine is provided. A urine absorption pad includes: a front surface sheet (16) which has water permeability and contacts a skin; a back surface sheet (17) which has water impermeability and contacts underwear; an absorbent (18) which is sandwiched between the front surface sheet (16) and the back surface sheet (17) and absorbs urine having passed through the front surface sheet (16); and a guide A (11) and a guide B (12) which allow urine to permeate and are self-standing so as to rise to the front surface sheet (16) side with respect to the absorbent (18) to control flow of urine. The guide A (11) is arranged at an edge portion, and the guide B (12) is arranged so as to extend in a left-right direction.

Claims

1. A urine absorption pad system comprising: a front surface sheet that has water permeability and contacts a skin; a back surface sheet that has water impermeability and contacts underwear; an absorbent that is sandwiched between the front surface sheet and the back surface sheet and absorbs urine having passed through the front surface sheet; and a guide A and a guide B that are self-standing so as to rise to the front surface sheet side with respect to the absorbent and that allow urine to permeate to control flow of urine, wherein the guide A and the guide B are separate bodies, are porous bodies that have continuous voids and water permeability, and which do not contain a superabsorbent polymer, wherein the guide A has higher water retainability than the guide B, has water impermeability provided at an outermost surface facing an outside of the system, and prevents overflow of urine outside of the system, wherein the guide B has a U shape and is arranged so as to extend in a left-right direction of the urine absorption pad system, and wherein the guide A is arranged along an edge portion of the absorbent in a longitudinal direction, perpendicular to the left-right direction of the urine absorption pad system, and extends below the guide B in the longitudinal direction.

2. The urine absorption pad system according to claim 1, wherein the guide B allows urine to flow inside, and disperses urine in a lateral direction.

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) FIG. 1 is a plan view of a urine absorption pad according to a first embodiment of the present invention.

(2) FIG. 2 is a side view of the urine absorption pad according to the first embodiment of the present invention.

(3) FIG. 3 is a schematic view of a urine absorption status in the first embodiment of the present invention.

(4) FIG. 4 is a plan view of a urine absorption pad according to a second embodiment of the present invention.

(5) FIG. 5 is a schematic view of a urine absorption status in the second embodiment of the present invention.

(6) FIG. 6 is a plan view of a urine absorption pad according to a third embodiment of the present invention.

(7) FIG. 7 is a side view of the urine absorption pad according to the third embodiment of the present invention.

(8) FIG. 8 is a plan view of a urine absorption pad according to a fourth embodiment of the present invention.

(9) FIG. 9 is a side view of the urine absorption pad according to the fourth embodiment of the present invention.

(10) FIG. 10 is a side view of the urine absorption pad in which an arrangement of a mesh body is changed in the fourth embodiment of the present invention.

(11) FIG. 11 is a schematic view of a urine absorption status in the fourth embodiment of the present invention.

(12) FIG. 12 is a plan view of a urine absorption pad according to a fifth embodiment of the present invention.

(13) FIG. 13 is a side view of the urine absorption pad according to the fifth embodiment of the present invention.

(14) FIG. 14 is a plan view of a urine absorption pad prepared for carrying out a urine discharge experiment in the fifth embodiment of the present invention.

(15) FIG. 15 is a schematic view of a urine absorption status in the fifth embodiment of the present invention.

(16) FIG. 16 is a schematic view of a urine absorption status in an existing commercially available urine absorption pad for men.

DESCRIPTION OF EMBODIMENTS

First Embodiment

(17) FIGS. 1 to 3 show an example of a urine absorption pad according to the present invention. FIG. 1 is a plan view of the pad according to the present invention, FIG. 2 is a side view thereof, and FIG. 3 is an overview of a reaction status of an absorbent 18 with a front surface sheet removed after a use experiment of the pad.

(18) Reference numeral 10 in FIG. 1 denotes a urine absorption pad for men for realizing the present invention, and “Poise (registered trademark) Men's Pad” Thin and Wide 300 cc manufactured by NIPPON PAPER CRECIA Co., LTD. is used as a base material thereof. A portion corresponding to a barrier cuff sheet (Reference numeral 50 of Patent Literature 2) is removed before various guides and the like were attached. This is because the portion has water impermeability and may hinder urine absorption.

(19) Reference numeral 11 denotes a guide A, and a cellophane tape is stuck to the outer surface which is the surface facing the outside of the system to make the surface have water impermeability. Reference numeral 11W represents the outer surface having water impermeability. As a result, the guides A 11 stuck to a front surface sheet 16 can prevent overflow of urine to the outside of the system (that is, the outside of the urine absorption pad) beyond the outer surfaces 11W. As the guide A, “GEKIOCHI (registered trademark) PAPA” S-693 manufactured by LEC, INC. is appropriately cut and formed into a 15 mm square to be used. This is spongy and can be easily impregnated with water. Reference numeral 12 denotes a guide B, and in the first embodiment, three guides B are arranged. As the guide B, a cylindrical portion having a diameter of about 18 mm of “GEKIOCHI-KUN” (registered trademark) K00213 manufactured by LEC, INC. is appropriately divided and cut to be used. This is a so-called loofah sponge shape in which synthetic resin fibers are intertwined and integrated. The guide A 11 (i.e., guide A of reference No. 11) and the guide B 12 (i.e., guide B of reference No. 12) can control the flow of urine in the urine absorption pad 10. The guide A 11 and the guide B 12 are both porous bodies which are continuous voids and have water permeability. The size of one void in the continuous voids of the guide A 11 is smaller than that of one void in the continuous voids of the guide B 12. Therefore, as compared with the guide B 12, the guide A 11 is more likely to temporarily store the urine that has permeated and has been absorbed therein. On the other hand, as compared with the guide A 11, the guide B 12 has lower performance of temporarily storing the urine that has permeated, so that the urine easily flows therein. Thus, the guide B 12 stuck to the front surface sheet 16 can guide urine to other regions in the urine absorption pad 10.

(20) The guides A 11 and the guides B 12 are stuck to the surface of the urine absorption pad for men 10 using a double-sided tape. As the double-sided tape, “Scotch (registered trademark) strong double-sided tape” KB-10 manufactured by 3M Japan Limited is used. Therefore, the surfaces of the guides A and B in contact with the pad have water impermeability. The guides A 11 and the guides B 12 are stuck to the wearer's skin side of the front surface sheet 16 so as to be self-standing and so as to rise to the front surface sheet 16 side with respect to a back surface sheet 17. The guide A 11 and the guide B 12 are formed in a band shape. The guide A 11 and the guide B 12 each have a predetermined width in the short-side direction that is orthogonal to the long-side direction of the band shape and along the surface where the front surface sheet 16 spreads.

(21) Reference numeral 13 denotes a kitchen plastic bag. This is for guiding urine to prevent urine leakage from the lower end of the pad of the present invention when urine reaches the lower end in a liquid state before being absorbed by an adsorbent. Reference numeral 14 is a double-sided tape, and is used for sticking the opening of the plastic bag 13 to the front surface of the pad 10, since urine may leak from the opening portion of the plastic bag 13 if the opening portion is in a free state. The total weight of the pad of the present invention complete with these pieces of equipment is 32 grams.

(22) A two-dot chain line in FIG. 1 is a penis placement position when wearing the pad according to the present invention. FIG. 2 is a side view of the pad of the present invention. Reference numeral 16 denotes a front surface sheet of the pad of the present invention, which is mainly a sheet having water permeability. The front surface sheet 16 contacts the skin of the wearer. Reference numeral 17 is the back surface sheet of the pad of the present invention, which has water impermeability. The back surface sheet 17 contacts underwear worn by the wearer. Between 16 and 17, the absorbent 18 for absorbing urine having passed through the front surface sheet 16 is contained. That is, the absorbent 18 is sandwiched between the front surface sheet 16 and the back surface sheet 17. It can be seen that the guide A 11 already has a certain height even in the vicinity of the upper end of the pad of the present invention. Reference numeral 15 denotes a cellophane tape, which closes the opening portion of the plastic bag 13 on the back surface side of the pad over the entire surface. The broken line 15 in FIG. 1 is the cellophane tape.

(23) In the use experiment, the pad according to the present invention was attached to tight-fitting pants, and after about two and a half hours, a urine discharge experiment was performed in an upright posture with both legs opened to a substantially shoulder width. In this urine discharge experiment, no leakage of urine to the outside of the system was observed. The weight of the pad of the present invention after this experiment was 243 grams. Since the initial weight after sticking all of the various guides and the like was 32 g, the difference 211 g is the weight of urine, and assuming that the urine specific gravity is 1, 211 cc could be absorbed and captured without leaking to the outside of the system.

(24) FIG. 3 is an overview of the reaction status of the absorbent 18 with the front surface sheet 16 removed after the experiment. The single hatched portion is a yellowed portion. A white unreacted portion slightly remains at the upper end of the pad, but substantially the entire surface of the pad is reacted. The double hatched portion is a portion that has been more deeply yellowed than the single hatched portion. As viewed from these, there is a possibility of further absorption of urine.

(25) Slight water droplets were found in the plastic bag 13 after the use experiment. It can be seen that the released urine permeates the guides A 11 and the guides B 12 flows smoothly over the pad by the guides A 11 and the guides B 12, and is mostly captured by the absorbent 18 in the process, and a part thereof may directly reach the lower end of the pad. Therefore, the plastic bag 13 is considered to be a necessary guide element for preventing urine leakage, but it is not necessarily the plastic bag 13. At least, the plastic bag 13 is not necessary on the back surface sheet 17 side. In this experiment, the plastic bag 13 is used because of ease of processing, but in practice, it only needs to be present on the front surface sheet 16 side. Furthermore, instead of a bag shape, a water-impermeable guide film that covers a part of the guides A 11, the guides B 12, and the front surface sheet 16 may be used.

(26) The results of repeated wearing tests using the same form as that of the first embodiment are shown in Table 3.

(27) TABLE-US-00003 TABLE 3 Pad Weight (g) Urine Presence After Absorption or Absence Experi- Before Urine Capturing of Leakage ment Wear- Discharge Amount to Outside Sense Number ing Test (cc) of System of Use Example 1 32 243 211 Absent Favorable Example 2 32 239 207 Absent Favorable Example 3 32 273 241 Absent Favorable

(28) In all cases, there was no leakage of urine to the outside of the system. The sense of use referred to herein is the sense of use after the wearing test, and in the first embodiment, there was a sense of wetness in the lower part of the penis and a part of the balls in contact with the penis after discharge of urine. However, there was no particular problem in the sense of use.

(29) According to the first embodiment configured as described above, the following effects can be obtained.

(30) The urine absorption pad 10 includes the front surface sheet 16 which has water permeability and contacts the skin, the back surface sheet 17 which has water impermeability and contacts underwear, the absorbent 18 which is sandwiched between the front surface sheet 16 and the back surface sheet 17 and absorbs urine having passed through the front surface sheet 16, and the guides A 11 and the guides B 12 which allow urine to permeate and are self-standing so as to rise to the front surface sheet 16 side with respect to the back surface sheet 17 to control the flow of urine. With this configuration, urine is guided to a wide range in the urine absorption pad 10 by the guides A 11 (having relatively high water retainability) and the guides B 12 (having relatively low water retainability) having different water retainability, so that the urine absorption capacity of the urine absorption pad 10 can be fully utilized.

(31) The guide A 11 is a porous body which is continuous voids and has water permeability, temporarily absorbs and stores urine, and prevents overflow of urine to the outside of the system. With this configuration, it is also possible to store a certain amount of urine released toward the guides A 11, so that overflow of urine can be prevented. In addition, since the guide A 11 is a porous body (that is, sponge-like) which is continuous voids. Therefore, when the pad is vacuum-packaged, the volume is reduced and the pad becomes compact, not bulky.

(32) The guide A 11 is spongy and has water permeability and retainability. With this configuration, since the continuous voids are formed such that air bubbles are continuous, urine can be efficiently stored. In addition, since the guide A 11 does not contain a chemical absorbent such as a superabsorbent polymer, the volume does not increase even when urine is stored, so that the guide A 11 does not become an obstacle to flowing urine and continues to function literally as a guide.

(33) Since the guide B 12 also does not contain a chemical absorbent such as a superabsorbent polymer, urine flows inside the guide B 12 and is guided to other regions. With this configuration, the guide B 12 facilitates flow of urine inside, so that urine can be guided to a desired region in the pad. In addition, by arranging the guide B 12 along the guide A 11, urine whose overflow has been blocked by the guide A 11 can flow through the inside of the guide B 12. Thus, it is possible to efficiently absorb urine using the entire wide region of the pad while making urine flow well in the pad.

(34) The guide B 12 has a loofah sponge shape in which synthetic fibers are intertwined and integrated, and does not contain a chemical absorbent. With this configuration, since the continuous voids are larger and the water retainability is lower than those of the guide A 11, the urine more easily flows inside the guide B 12.

Second Embodiment

(35) FIGS. 4 and 5 show a second embodiment of a urine absorption pad according to the present invention. FIG. 4 is a plan view of the pad, and FIG. 5 is an overview of a reaction status of the absorbent 18 with the front surface sheet removed after a use experiment of the pad. A side view of the second embodiment is not shown because it is similar to FIG. 2. Reference numeral 50 in FIG. 4 denotes a urine absorption pad for men for realizing the present invention, and “Poise (registered trademark) Men's Pad” Thin and Wide 300 cc manufactured by NIPPON PAPER CRECIA Co., LTD. is used as a base material thereof.

(36) As shown in FIG. 4, the second embodiment is the same as the first embodiment except that the arrangement of guides B 112 is different from that of the first embodiment. That is, in the second embodiment, the guide B 112 has a U shape extending in the left-right direction of the pad with the long-side direction of the guide B being the lateral direction, and two guides B 112 are arranged substantially in parallel in the longitudinal direction of the pad. The second embodiment aims to reduce cost by reducing the amount of use of the guides B as compared with the first embodiment. As the guide B 112, a cylindrical portion of “GEKIOCHI-KUN” (registered trademark) K00213 manufactured by LEC, INC. which is the same as that of the first embodiment is appropriately divided and cut to be used.

(37) In the use experiment, the pad according to the present invention was attached to tight-fitting pants, and after about two and a half hours, a urine discharge experiment was performed in an upright posture with both legs opened to a substantially shoulder width. In this urine discharge experiment, no leakage of urine to the outside of the system was observed. The weight of the pad of the present invention after this experiment was 245 grams. Since the initial weight after sticking all of the various guides and the like was 29 g, the difference 216 g is the weight of urine, and assuming that the urine specific gravity is 1, 216 cc could be absorbed and captured without leaking to the outside of the system.

(38) FIG. 5 is an overview of the reaction status of the absorbent 18 with the front surface sheet 16 removed after the experiment. The single hatched portion is a yellowed portion. The double hatched portion is a portion that has been more deeply yellowed than the single hatched portion. On the other hand, a white unreacted portion slightly remains at the upper end of the pad. The regions Y in FIG. 5 are also white unreacted portions. This is the result of the absorbent 18 which did not react with urine due to the flow of urine hindered by compression of both thighs against the pad. As is clear from the comparison with FIG. 3, it is considered that this is because the guide B 112 is only arranged to be curved in a U shape and does not extend to the lower end of the pad in the second embodiment, while the guide B 12 extends to the lower end of the pad along the guide A 11 in the first embodiment.

(39) In FIG. 5, a high reaction site of the absorbent 18 indicated by double hatching is also observed in the right-side portion of the center of the pad. In addition, urine stain is partially observed in the guide A 111 in contact with this portion of the pad. From this, the following process can be read, that is, the flow of urine struck on this portion, the guide A 111 absorbed a certain amount of urine, a water-impermeable surface 111W blocked leakage of urine to the outside of the system, the flow of urine was pushed back toward the central portion of the pad main body in the lateral direction, and urine was fixed and captured by the absorbent 18 present therein. This is the effect of the guide A 111 which is self-standing and is a porous body that is continuous voids and has water permeability and water retainability. That is, it is found that the guide A 111 prevents overflow of urine to the outside of the system.

(40) After the experiment, the inside of a plastic bag 113 was slightly cloudy. The released urine may have flowed smoothly over the pad surface by the guides A 111 and the guides B 112, and have been mostly captured by the absorbent 18 in the process, and a part thereof may have directly reached the lower end of the pad and then have been captured by the absorbent 18. In the second embodiment, although the flow of urine is hindered by compression of both thighs against the pad, and the regions Y is formed, the flow of urine reaches the lower end of the pad, possibly due to the effect of the guides A 111, and the absorbent 18 in this portion is utilized.

(41) The results of repeated wearing tests using the same form as that of the second embodiment are shown in Table 4.

(42) TABLE-US-00004 TABLE 4 Pad Weight (g) Urine Presence After Absorption or Absence Experi- Before Urine Capturing of Leakage ment Wear- Discharge Amount to Outside Sense Number ing Test (cc) of System of Use Example 4 29 245 216 Absent Favorable Example 5 29 251 222 Absent Favorable Example 6 29 228 199 Absent Favorable

(43) In all cases, there was no leakage of urine to the outside of the system. As for the sense of use, similarly to the first embodiment, there was a sense of wetness in the lower part of the penis and a part of the balls in contact with the penis. However, there was no particular problem in the sense of use.

Third Embodiment

(44) FIGS. 6 and 7 show a third embodiment of a urine absorption pad according to the present invention. FIG. 6 is a plan view of the pad, and FIG. 7 is a side view of the pad. Reference numeral 60 in FIG. 6 denotes a urine absorption pad for men for realizing the present invention, and “Poise (registered trademark) Men's Pad” Thin and Wide 300 cc manufactured by NIPPON PAPER CRECIA Co., LTD. is used as a base material thereof. In the third embodiment, the guides B 12 in FIG. 1 of the first embodiment are arranged between the front surface sheet 16 which has water permeability and contacts the skin and the back surface sheet 17 which has water impermeability and contacts underwear, and the other configurations are the same as those of the first embodiment.

(45) The constituent elements of the urine absorption pad for men for realizing the third embodiment are the same as those of the first embodiment, but are different in a preparation method. Specifically, a part of the front surface sheet 16 which has water permeability is cut open, and three guides B 12 are appropriately inserted between the front surface sheet 16 and the back surface sheet 17, and fixed to the front surface sheet 16 which has water permeability using the double-sided tape described above. The cut opening of the front surface sheet 16 which has water permeability is closed by arranging and sticking the guides A 11 thereon so as to close the opening using a double-sided tape. The preparation method of the third embodiment is the same as that of the first embodiment except for the above points. That is, the guides B 12 are self-standing so as to rise to the front surface sheet 16 side with respect to the back surface sheet 17.

(46) In the use experiment, the pad was according to the present invention attached to tight-fitting pants, and after about two and a half hours, a urine discharge experiment was performed in an upright posture with both legs opened to a substantially shoulder width. In this urine discharge experiment, no leakage of urine to the outside of the system was observed. The weight of the pad of the present invention after this experiment was 264 grams. Since the initial weight after sticking all of the various guides and the like was 32 g, the difference 232 g is the weight of urine, and assuming that the urine specific gravity is 1, 232 cc could be absorbed and captured without leaking to the outside of the system.

(47) The front surface sheet 16 was removed after the experiment and a reaction status of the absorbent 18 was observed. Since the yellowed region is almost the same as that in FIG. 3, it is not shown. Since the guides B 12 were arranged between the front surface sheet 16 and the back surface sheet 17 and in the absorbent 18, the particles of the reacted absorbent 18 were attached so as to cling to the entire guides B 12.

(48) The results of repeated wearing tests using the same form as that of the third embodiment are shown in Table 5.

(49) TABLE-US-00005 TABLE 5 Pad Weight (g) Urine Presence After Absorption or Absence Experi- Before Urine Capturing of Leakage ment Wear- Discharge Amount to Outside Sense Number ing Test (cc) of System of Use Example 7 32 264 232 Absent Favorable Example 8 32 248 216 Absent Favorable Example 9 32 225 193 Absent Favorable

(50) In all cases, there was no leakage of urine to the outside of the system. As for the sense of use, similarly to the first embodiment, there was a sense of wetness in the lower part of the penis and a part of the balls in contact with the penis. However, there was no particular problem in the sense of use. In the first embodiment, the guides B 12 directly contact with the skin, whereas in the third embodiment, the front surface sheet 16 is interposed between the guides B 12 and the skin, and thus it was expected that there was a difference in wearing feeling. However, there was no significant difference.

Fourth Embodiment

(51) FIGS. 8 to 11 show a fourth embodiment of a urine absorption pad according to the present invention. FIG. 8 is a plan view of the pad according to the fourth embodiment, FIG. 9 is a side view thereof, and FIG. 10 is a side view of the pad according to another example. Reference numeral 70 in FIG. 8 denotes a urine absorption pad for men for realizing the present invention, and “Poise (registered trademark) Men's Pad” Thin and Wide 300 cc manufactured by NIPPON PAPER CRECIA Co., LTD. is used as a base material thereof. In the fourth embodiment, instead of arranging the guides B 12 in FIG. 1 of the first embodiment, a mesh body 212 is arranged on the front surface sheet 16. FIG. 10 shows a state in which the width of the mesh body 212 is made larger than the width of the inside of the pad defined by the guides A 211 in the central portion and the lower side of the pad in the longitudinal direction, whereby the direction in which the mesh body 212 spreads is changed by the guides A 211, and the mesh body 212 is self-standing so as to be higher than the guides A 211 (that is, in a state of being farther away from the front surface sheet 16 than the guides A 211). As a result, even when the distance between the pad and the wearer accidentally increases for some reason after the wearer wears the pad, the gap is expected to be filled with the mesh body 212. FIG. 11 is an overview of a reaction status of the absorbent 18 with the front surface sheet 16 removed after the use experiment of the pad.

(52) The constituent elements of the urine absorption pad for men of 70 for realizing the present embodiment are the same as those of the first embodiment except that the mesh body 212 is used as the guides B. As the mesh body 212, Non-slip Mat LFB-60 manufactured by ASAHIPEN CORPORATION was appropriately cut and used. The said product has a thickness of about 3 mm, and is formed such that a plurality of particles which are synthetic resin foam having a generally long spherical shape are arranged and connected in two directions of a long-side direction and a short-side direction. These particles are foam which is continuous voids and thus have a function of retaining water. By arranging such a mesh body 212 on the entire surface of the front surface sheet 16, it can be expected that a space is provided between the wearer and the pad, and a flow of urine is guided to the entire surface of the pad along the mesh body 212.

(53) In the use experiment, the pad according to the present invention was attached to tight-fitting pants, and after about two and a half hours, a urine discharge experiment was performed in an upright posture with both legs opened to a substantially shoulder width. In this urine discharge experiment, no leakage of urine to the outside of the system was observed. The weight of the pad of the present invention after this experiment was 264 grams. Since the initial weight after sticking all of the various guides and the like was 35 g, the difference 229 g is the weight of urine, and assuming that the urine specific gravity is 1, 229 cc could be absorbed and captured without leaking to the outside of the system.

(54) FIG. 11 is an overview of the reaction status of the absorbent 18 with the front surface sheet 16 removed after the experiment. The single hatched portion is a yellowed portion. The double hatched portion is a portion that has been more deeply yellowed than the single hatched portion. The single hatched portion is slightly narrow on the lower side of the pad, and it is considered that the amount of urine that has reached the lower side of the pad was smaller than that in the first embodiment. On the other hand, the double hatched portion spreads over the entire region from the upper portion to the central portion of the pad, and it is considered that absorption reaction of most of the urine occurred here. There is a white unreacted portion at substantially the central portion of the pad. This indicates that urine did not reach the portion due to pressing of the balls, so that absorption of urine did not occur.

(55) The results of repeated wearing tests using the same form as that of the fourth embodiment are shown in Table 6.

(56) TABLE-US-00006 TABLE 6 Pad Weight (g) Urine Presence After Absorption or Absence Experi- Before Urine Capturing of Leakage ment Wear- Discharge Amount to Outside Sense Number ing Test (cc) of System of Use Example 10 35 264 229 Absent Average Example 11 35 231 196 Absent Average Example 12 35 247 212 Absent Average

(57) In Table 6, the sense of use was “Average” because the sense of wetness reached the lower part of the penis and the entire balls after the test.

Fifth Embodiment

(58) FIGS. 12 to 15 show another fifth embodiment of the urine absorption pad according to the present invention. Unlike the first to fourth embodiments, the fifth embodiment is premised on use in a sitting posture. In the case of the sitting posture, not only the balls but also the thighs are greatly pressed against the upper surface of the pad as compared with the standing posture, and there is a high possibility that the flow of urine in the pad is hindered. For this reason, it is one idea to arrange a guide B that is resistant to pressing and has rigidity on the pad, but there is also a possibility that the sense of use may decrease. Thus, it is aimed to absorb most of the discharged urine at the front side where the pressing force is not easily applied.

(59) Therefore, as shown in FIG. 12, in the urine absorption pad according to the fifth embodiment, the width on the front side is formed to be larger than the width on the rear side. In the direction of being worn on the body of the wearer, the absorbent 18 is arranged generally throughout a urine absorption pad 80. The portion where the absorbent 18 is arranged is longer in the lateral direction than in the longitudinal direction. The amount of the absorbent 18 on the front side is greater than on the rear side. The vicinities of the intersections of the lower edge portion of the urine absorption pad 80 and two-dot chain lines 88 and 89 are formed to be recessed toward the front side.

(60) Reference numeral 81 denotes a guide A located at the uppermost edge portion in the longitudinal direction which is a pad edge portion, and “GEKIOCHI PAPA” S-693 manufactured by LEC, INC. is appropriately cut and formed into a 15 mm square to be used. The guides A of 81 close to the center line C are fixed to the upper surface of the pad with the above-described double-sided tape (not shown) at an interval of about 10 mm. The guides A of 81 located at both ends are fixed to the upper surface of the pad with the above-described double-sided tape (not shown) similarly to the guides A close to the center line C, at an interval of several mm from the guide A close to the center line C. This is because when the pad is worn, the pad is bent into a substantially W shape when viewed from the viewpoint of the wearer, so that the guides A of 81 close to the center line C interfere with each other and become difficult to bend, and the gap between the skin surface of the wearer and the pad is increased.

(61) A cellophane tape is stuck to the outermost surface of the guide A, which is a surface facing the outside of the system, so that the outermost surface 81W of the pad has water impermeability. This is to prevent urine from permeating or passing over 81 and leaking.

(62) Reference numeral 82 denotes a guide B, a cylindrical portion having a diameter of about 18 mm of “GEKIOCHI-KUN” (registered trademark) K00213 manufactured by LEC, INC. is appropriately divided and cut to be used, and the guide B 82 is fixed to the upper surface of the pad using the above-described double-sided tape (not shown). This is for making the flow of urine in front of the pad 80 spread laterally.

(63) Reference numeral 83 denotes a food wrap film. This is for guiding urine to prevent leakage of urine from the lower end of the pad of the present invention when urine reaches the lower end in a liquid state before being absorbed by the adsorbent. The food wrap film 83 is fixed to a front surface sheet 86 having water permeability with a double-sided tape of 85 (using the above-mentioned material). If the opening portion of the food wrap film 83 is in a free state, urine may leak from the opening portion. Therefore, the central portion of the opening portion of the food wrap film 83 is stuck to the front surface sheet 86 using the double-sided tape 84 described above.

(64) FIG. 13 is a side view of the pad of the present invention as viewed in a direction of arrow D. Reference numeral 86 denotes the front surface sheet of the pad of the present invention, which is mainly a sheet having water permeability. Reference numeral 87 is a back surface sheet of the pad of the present invention, which has water impermeability. Between the sheets 86 and 87, the absorbent 18 for absorbing urine is contained. It can be seen that the guide A 81 has a constant height on the upper surface of the pad. In FIG. 13, the visible surface of the guide A 81 is a water-impermeable surface. The two-dot chain lines 88 and 89 in FIG. 12 are bent lines that are bent by being sandwiched between the crotches when the pad is worn.

(65) Reference numeral 90 in FIG. 14 schematically indicates the pad according to the fifth embodiment in FIGS. 12 and 13 using a commercially available urine absorption pad, and FIG. 15 is an overview of a reaction status of the absorbent 18 with a front surface sheet 96 removed after the use experiment of the pad. In the urine absorption pad 90, as a base material of the pad, a first pad 90A (“Poise (registered trademark) Men's Pad” Thin and Wide 300 cc manufactured by NIPPON PAPER CRECIA Co., LTD.) and a second pad 90B (Lifree (registered trademark) Men's Refreshing Thin Pad 120 cc manufactured by Unicharm Corporation) are connected to be adjacent to each other using a packing tape. It is assumed that the first pad 90A contains the absorbent 18 in an amount capable of absorbing at least 300 cc of urine. It is assumed that the second pad 90B contains the absorbent 18 in an amount capable of absorbing at least 120 cc of urine. In the urine absorption pad 90, the portion where the absorbent 18 is arranged is longer in the lateral direction than in the longitudinal direction in the direction of being worn on the body of the wearer. The urine absorption pad 90 is intended to absorb most of urine discharged at the front side (that is, the upper part 90A side of the urine absorption pad 90) where is free from the pressure of the balls and the thighs.

(66) Therefore, the first pad 90A capable of absorbing about 300 cc of urine is used in the upper part of the pad, and the second pad 90B capable of absorbing about 120 cc of urine is complementarily used in the lower part of the pad. The respective absorption surfaces are brought into close contact with each other, and fixed using a packing tape from the back surface side. The broken line in FIG. 14 represents the packing tape on the back surface. Reference numeral 98 denotes both end portions of the packing tape, which are folded back to partially cover the upper surface (front surface sheet 96 side) of the pad in order to prevent leakage from the joint.

(67) Reference numeral 91 denotes a guide A, and “GEKIOCHI PAPA” S-693 manufactured by LEC, INC. is appropriately cut and formed into a 15 mm square to be used. The guides A 91 close to the center line C are fixed to the upper surface of the pad with the above-described double-sided tape (not shown) at an interval of about 10 mm. The guides A 91 located at both ends are fixed to the upper surface of the pad with the above-described double-sided tape (not shown) similarly to the guides A close to the center line C, at an interval of several mm from the guide A close to the center line C. This is because when the pad is worn, the pad is bent into a substantially W shape when viewed from the viewpoint of the wearer, so that the guides A 91 close to the center line C interfere with each other and become difficult to bend, and the gap between the skin surface of the wearer and the pad is increased.

(68) Reference numeral 92 denotes a guide B, a cylindrical portion having a diameter of about 18 mm of “GEKIOCHI-KUN” (registered trademark) K00213 manufactured by LEC, INC. is appropriately divided and cut to be used, and the guide B 92 is arranged on the upper surface of the pad in a U shape extending in the left-right direction of the pad with the long-side direction of the guide B being the lateral direction using the above-described double-sided tape (not shown). This is for making the flow of urine on the upper surface of the first pad 90A spread laterally.

(69) Reference numeral 93 denotes a food wrap film. This is to guide urine to prevent leakage of urine from the lower end of the pad when urine reaches the lower end in a liquid state before being absorbed by the adsorbent. The food wrap film 93 is fixed to the upper surface of the second pad 90B with a double-sided tape 95 (using the above-mentioned material). If the opening portion of the food wrap film 93 is in a free state, urine may leak from the opening portion. Therefore, the central portion of the opening portion of the food wrap film 93 is stuck to the upper surface of the first pad 90A using the double-sided tape 94 described above. The two-dot chain lines 99 and 100 are bent lines that are bent by being sandwiched between the crotches when the pad is worn. The total weight of the urine absorption pad 90 of the fifth embodiment complete with these pieces of equipment is 48 grams.

(70) In the use experiment, the urine absorption pad 90 was attached to tight-fitting pants, and after about two hours, the wearer sat on the lid of the Western style toilet bowl, opened his/her both legs to a substantially shoulder width, and a urine discharge experiment was performed in a sitting posture. The pad according to the fifth embodiment is attached such that the guides A 91 are arranged in the lateral direction with respect to the wearer and located at the upper end. That is, the urine absorption pad 90 is worn by wearer such that the orientation of the first pad 90A and the second pad 90B intersects the orientation of the state in which the first pad 90A and the second pad 90B are used alone.

(71) In this urine discharge experiment, no leakage of urine to the outside of the system was observed. The weight of the fifth embodiment after this experiment was 255 grams. Since the initial total weight was 48 g, the difference 207 g is the weight of urine, and assuming that the urine specific gravity is 1, 207 cc of the difference 207 g could be absorbed and captured without leaking to the outside of the system.

(72) FIG. 15 is an overview of the reaction status of the absorbent 18 with the front surface sheet 96 removed after the experiment. The single hatched portion is a yellowed portion. The yellowed portion continues from the first pad 90A to the second pad 90B. The double hatched portion is a portion that has been more deeply yellowed than the single hatched portion. A white unreacted portion remains on the upper side of the first pad 90A, and thus there is a capability of further absorption of urine.

(73) No water droplets were found in the food wrap film 93 after the use experiment. However, when the amount of released urine increases, it is considered that there is a possibility that a part of urine directly reaches the lower end of the second pad 90B similarly to the first embodiment. Therefore, the entire front surface sheet 96 in the second pad 90B may be covered by a water-impermeable guide film.

(74) The results of repeated wearing tests using the same form as that of the fifth embodiment are shown in Table 7.

(75) TABLE-US-00007 TABLE 7 Pad Weight (g) Urine Presence After Absorption or Absence Experi- Before Urine Capturing of Leakage ment Wear- Discharge Amount to Outside Sense Number ing Test (cc) of System of Use Example 13 48 255 207 Absent Average Example 14 48 234 186 Absent Average Example 15 48 266 218 Absent Average

(76) In Table 7, the sense of use was “Average” because the sense of wetness reached the lower part of the penis and the entire balls after the test.

(77) In the urine absorption pad 90, the portion where the absorbent 18 gathers is longer in the lateral direction than in the longitudinal direction in the direction of being worn on the body of the wearer. With this configuration, even when the wearer is in a seated posture and the flow of urine to the back of the balls is hindered by pressing of the balls or the like, the entire amount of urine can be absorbed without leakage of urine to the outside of the system since most of the part for absorbing urine exists in front of the balls.

(78) <Form of Existing Commercially Available Pad>

(79) FIG. 16 is a schematic view of a urine absorption status in an existing commercially available urine absorption pad for men from which a front surface sheet is removed. This corresponds to Comparative Example. In a use experiment of the existing commercially available pad, “Poise (registered trademark) Men's Pad” Thin and Wide 300 cc manufactured by NIPPON PAPER CRECIA Co., LTD. was attached to tight-fitting pants, and after about two and a half hours, a urine discharge experiment was performed in an upright posture with both legs opened to a substantially shoulder width.

(80) Leakage of urine to the outside of the system started in the middle of the urine discharge test. Since urination cannot be interrupted as described above, the pad was taken out after all urine was discharged, and the weight thereof was measured and found to be 122 g. The weight of the pad before use was 25 grams, so the difference was 97 grams, and assuming that the urine specific gravity is 1, 97 cc of urine was captured. As shown in FIG. 16, when the status of urine absorption is observed, the single hatched portion is a yellowed portion, and a portion that has been more deeply yellowed than the single hatched portion is indicated by the double hatched portion. The double hatched portion had a thickness increased by about 3 to 4 times the thickness of the periphery. It can be seen that when urine flows in nearby this portion, the absorbent of this portion chemically changes quickly and fixes the urine, and at the same time, the volume of the portion was remarkably increased, which prevented the subsequent urine flow from moving downward from this portion, and in addition, the urine flow continued beyond the fixable urine amount by the chemical change in the vicinity of this portion, resulting in occurrence of urine leakage. The path through which urine may have overflowed from the pad is indicated by an arrow.

(81) In addition, an existing overflow prevention measure is a sheet, which is suspended by an elastic body such as rubber, to which a pad is attached, and which is bent and made to be in a rising state from a flat state to prevent overflow of urine, and after it is worn, a certain height is maintained regardless of release of urine. As described above, since the thickness of the vicinity of the location where urine has flowed in is increased by about 3 to 4 times the thickness of the periphery, the existing overflow preventing sheet loses a relative height difference and does not serve to prevent overflow. This is also considered to be a cause of occurrence of urine leakage.

(82) The existing commercially available pad has poor flow of urine in the pad. In addition, the existing commercially available pad does not have a function of correcting a urine release direction when the urine release direction is biased, so that urine is biasedly absorbed, and also an absorbent chemically changes and greatly expands the volume, which becomes an obstacle that hinders the urine flow in the pad. Due to this, urine does not spread to other portions where the urine absorption capacity remains, and urine overflows when the absorption capacity of the portion where urine is biasedly absorbed reaches the limit, which leads to leakage of urine.

(83) The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope.

(84) (1) In the fourth embodiment, the material of the guide B is different from that of the guide B in the first to third embodiments and the fifth embodiment. However, the present invention is not limited thereto, but the material of the guide B in the fourth embodiment and the material of the guide B in the first to third embodiments and the fifth embodiment may be used in combination. The material of the guide B is not limited to the material used in the present embodiments, but another material not containing the superabsorbent polymer may be used as the guide B. Furthermore, the material of the guide A is not limited to the material used in the present embodiments, but another material not containing the superabsorbent polymer may be used as the guide A.
(2) The guide A and the guide B each having the double-sided tape attached thereto may be attached later to a commercially available urine absorption pad. That is, these guide A and guide B can be freely attached to the wearer's skin side surface of the front surface sheet that contacts the skin of the wearer of the urine absorption pad which absorbs urine of the wearer. The guide A and the guide B allow urine to permeate and are self-standing so as to rise to the skin side of the wearer from the front surface sheet to control the flow of urine. With this configuration, since the positions where the guide A and the guide B are attached can be adjusted according to the state of the body of the wearer, not only urine can be more favorably absorbed with a commercially available urine absorption pad, but also the feel of wearing can be adjusted according to the preference of each wearer.
(3) The mesh body in the fourth embodiment is formed such that a plurality of particles, which are synthetic resin foam having a generally long spherical shape, are arranged and connected in two directions of the long-side direction and the short-side direction. However, the configuration of the mesh body is not limited thereto.

REFERENCE SIGNS LIST

(85) 10 first embodiment 11, 81, 91, 111, 211 guide A (guide) 12, 42, 82, 92, 112, 212 guide B (guide) 13, 43, 113, 213 kitchen plastic bag 14, 44, 84, 94, 114, 214 double-sided tape. 15, 45, 85, 95, 115, 215 cellophane tape 16, 46, 86, 96 front surface sheet 17, 47, 87 back surface sheet 18 absorbent 50 second embodiment 60 third embodiment 70 fourth embodiment 80, 90 fifth embodiment 90A first pad 90B second pad 83, 93 food wrap film 88, 98 folded part of packing tape 212 mesh body (guide B)