WO2005082305A1 - 吸収体、この吸収体を備えたおむつ及び吸収性物品 - Google Patents
吸収体、この吸収体を備えたおむつ及び吸収性物品 Download PDFInfo
- Publication number
- WO2005082305A1 WO2005082305A1 PCT/JP2005/003335 JP2005003335W WO2005082305A1 WO 2005082305 A1 WO2005082305 A1 WO 2005082305A1 JP 2005003335 W JP2005003335 W JP 2005003335W WO 2005082305 A1 WO2005082305 A1 WO 2005082305A1
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- WO
- WIPO (PCT)
- Prior art keywords
- absorbent
- main body
- sheet
- superabsorbent polymer
- liquid
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/531—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/539—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F2013/530481—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
- A61F2013/530489—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials being randomly mixed in with other material
Definitions
- the present invention relates to an absorbent body containing a superabsorbent polymer and absorbent fibers and reduced in thickness by pressure, an absorbent body, a diaper including the absorbent body, and an absorbent article.
- absorbent articles such as disposable disposable diapers, sanitary napkins, incontinence pads, etc.
- absorbents using superabsorbent polymers are used.
- a superabsorbent polymer also called SAP or superabsorbent resin, absorbs water and swells into a gel when it comes in contact with water, and when absorbed, does not release liquid even if some pressure is applied. And its absorptive power reaches several tens of times and several thousand times of its own volume.
- the superabsorbent polymer alone exhibits the above-mentioned absorptive power, but cannot exhibit its absorptive power unless it is moistened to some extent, and has a low water absorption rate. It is mixed into absorbent fibers in the form of granular powder, crushed powder or pellets.
- Absorbents used in absorbent articles such as the above-mentioned sanitary napkins, incontinence pads, diapers, etc. are provided with an absorbent containing a superabsorbent polymer and absorbent fibers, and are bulky and portable. Inconvenient. In addition, if there is a bulk, it is difficult to improve the efficiency of distribution. Therefore, the absorber used in the absorbent article is pressed to reduce the bulk, and is being reduced in thickness and size.
- Absorber thin pulp, etc.
- absorption capacity absorption amount 'absorption rate' liquid permeability
- absorbers that have been made thinner by pressing are usually provided with a larger basis weight so that the absorption capacity does not decrease.However, such a method can dramatically reduce the thickness. Absent. Further, if the density of the superabsorbent polymer becomes too high due to the reduction in thickness, so-called “gel blocking” occurs in which the voids between the swollen superabsorbent polymer particles are extremely reduced, and the desired absorbency cannot be exhibited. . As a result, the penetration of urine is inhibited by the bond between the superabsorbent polymer particles, and a phenomenon in which the impregnated urine returns again and flows out is observed.
- the present invention has been proposed in view of the above-described circumstances, and an object of the present invention is to provide an absorber that can be made thinner without lowering the absorbing power, and to be provided with the absorber.
- An object of the present invention is to provide a diaper and an absorbent article.
- the absorber according to the present invention proposed to achieve the above-mentioned object wraps an absorbent main body containing a high-absorbent polymer and an absorbent fiber in crepe paper, and covers each main surface of the absorbent main body with each other.
- a hot-melt adhesive is applied between the crepe papers, and a liquid-permeable sheet for dispersing a liquid to the surface of the absorbent main body is disposed on the crepe paper on one main surface side of the absorbent main body.
- the absorption main body is made thinner under pressure by setting the ratio of the superabsorbent polymer to the total weight of the superabsorbent polymer and the absorbent fiber to 0% by weight or more, and the liquid permeable sheet is made of at least polyethylene terephthalate. Therefore, the cushioning property is enhanced, and the liquid can be diffused over a wide range to the absorbent.
- the liquid permeable sheet may further use a hollow polyethylene terephthalate to further enhance the cushion.
- the hot-melt bonding between one main surface of the absorbent main body and the crepe paper may be performed by using a delayed crystal type adhesive to enhance the fixation of the superabsorbent polymer.
- the hot melt adhesion between the other main surface of the absorbent main body and the crepe paper is resistant to hot melt.
- a water-based adhesive may be used to fix the superabsorbent polymer and the absorbent fiber after absorbing the liquid.
- the surface of the absorbent main body may be formed substantially flat, embossed, and the absorbent fiber may be used to hold down the superabsorbent polymer, so that the adhesiveness of the superabsorbent polymer may be enhanced.
- the absorbent body should have a superabsorbent polymer weight of 300 gsm or more, a density of 150 kgZm 3 or more, and an overall thickness of 2 mm or less, more preferably The total thickness is 1.0-1.8 mm, and the density of the superabsorbent polymer is 300 kgZm 3 or more.
- Absorbents such as those described above may be attached to an absorbent article by wrapping the absorbent main body wrapped in crepe paper and a liquid-permeable sheet with a sheet body having at least a liquid-permeating surface made liquid-permeable. In addition to the above, it can also be integrally attached to the components of the absorbent article.
- the above-described absorber and the liquid-permeable sheet serving as the second sheet are disposed between the liquid-permeable top sheet and the liquid-impermeable back sheet.
- absorbent articles other than diapers such as sanitary napkins and incontinence pads
- the absorbent described above is provided between the liquid-permeable top sheet and the liquid-impermeable back sheet, and a liquid-permeable sheet serving as a second sheet. Is arranged.
- FIG. 1 is a development view of a pants-type diaper to which the present invention is applied.
- FIG. 2 is a front view of a pants-type diaper to which the present invention is applied.
- FIG. 3 is a cross-sectional view of the upper absorber.
- FIG. 4 is a perspective view of an upright cuff.
- FIG. 5 is a view for explaining a manufacturing apparatus mainly composed of absorption.
- FIG. 6 is a diagram showing an apparatus used for a test of a pressure absorption amount.
- the pants-type diaper 1 has a front body 2 and a back body 3 connected in series via a crotch part 4, and one long side has the front body 2
- the right leg turning parts 5R and 5R are continuously provided on the back body 3
- the left leg surrounding parts 6L and 6L are provided on the other long side of the front body 2 and the back body 3
- the short side is A girth 7W, 7W is provided.
- the side edges of the front body 2 and the side edges of the back body 3 are provided with joints 8R and 8L that are joined to each other.
- the pants-type diaper 1 is joined by ultrasonic welding, heat welding, etc.
- the pants-type diaper 1 has the right leg opening 5 formed by the right leg circumferences 5R and 5R of the front body 2 and the back body 3.
- the left leg opening 6 is constituted by the left leg circumference 6L and 6L of the front body 2 and the back body 3
- the trunk opening 7 is constituted by the waist parts 7W and 7W of the front body 2 and the rear body 3 .
- Elastic members 10W composed of one or more elastic threads, etc., for tightly attaching the torso opening 7 around the wearer's torso, at the side edges of the waist 7W, 7W of the front 2 and the back 3 Is set up. Further, below the elastic member 10W of the front body 2, one or more elastic members 10B, 10B are provided for bringing the front body 2 and the back body 3 into close contact with the wearer's abdomen and the back thereof. I have.
- An absorber 9 for absorbing excrement is provided at the center of the inner surface of the front body 2 and the back body 3.
- the pants-type diaper 1 in which the front body 2 and the back body 3 are connected in series via the crotch part 4 has a liquid-permeable top sheet 11 on the inside and a The absorbent body 9 is sandwiched between a liquid-impermeable knock sheet 12 and a liquid-impermeable knock sheet 12.
- the top sheet 11 constitutes the surface on the side directly in contact with the wearer's skin, and it is necessary that the top sheet 11 has adaptability, flexibility and non-irritating materials, and the top sheet 11 It must be liquid permeable in order to absorb the moisture of the object. Therefore, a perforated or non-porous nonwoven fabric, a porous plastic sheet, or the like is used for the top sheet 11.
- a perforated or non-porous nonwoven fabric in addition to synthetic fibers such as polyethylene and polypropylene, polyester-based and polyamide-based synthetic fibers, recycled fibers such as rayon and cuvula, and natural fibers such as cotton, are used.
- Method, spun bond method, thermal bond method, melt blow It is manufactured by a processing method such as a punching method and a needle punching method.
- the knock sheet 12 is for preventing liquid such as moisture absorbed by the absorber 9 from leaking to the outside, and for preventing the outer clothes and the like of the wearer from being stained. Need to be Therefore, as the knock sheet 12, a liquid-impermeable sheet such as a polyethylene sheet, a water-permeable / moisture-permeable sheet having moisture permeability from the viewpoint of preventing stuffiness, and a composite sheet of a nonwoven fabric and a waterproof sheet are used.
- top sheet 11 and back sheet 12 sandwich the absorber 9 therebetween, and are integrally joined around by ultrasonic welding, heat welding, or the like.
- the excrement of the wearer laterally leaks from the right leg opening 5 and the left leg opening 6 to both side edges of the absorber 9 sandwiched between the top sheet 11 and the back sheet 12.
- An upright cuff 13 is provided to prevent this.
- the upright cuffs 13 are provided on both sides of the absorber 9 on the side of the top sheet 11 and along the right leg circumferences 5R, 5R and the left leg circumferences 6L, 6L. Have been.
- the upright cuffs 13 are provided so as to be upright at their ends in the center of the absorber 9.
- An elastic member 13A is provided on the tip end of the standing cuff 13 so as to expand and contract with the right leg opening 5 and the left leg opening 6.
- Such an upright cuff 13 is tightly attached to the vicinity of the base of the wearer's thigh when worn, so that liquid such as moisture of excrement does not leak out.
- the upright cuff 13 is formed of, for example, a material used for the above-described top sheet 11 and back sheet 12, and is attached by ultrasonic welding, heat welding, or the like.
- the standing cuffs 13 may be provided integrally with the top sheet 11 and the back sheet 12 by using the side edges of the top sheet 11 and the back sheet 12.
- the absorbent body 9 described above wraps an absorbent main body 21 containing a superabsorbent polymer and an absorbent fiber with crepe paper 22, and forms a main surface on the top sheet 11 side with crepe paper 22.
- the first hot-melt adhesive 23 With the first hot-melt adhesive 23, the main surface of the knock sheet 12 and the crepe paper 22 with the second hot-melt adhesive 24, and the gap between the top sheet 11 and the crepe paper 22. It is made with a cand sheet 25 interposed.
- the absorbent main body 21 is formed by molding a highly absorbent polymer and absorbent fibers.
- the superabsorbent polymers used here include carboxymethylcellulose and polyacyl. Lylic acid and its salts, crosslinked acrylate polymer, starch acrylic acid graft copolymer, hydrolyzate of starch acrylonitrile graft copolymer, crosslinked polyoxyethylene, crosslinked carboxymethylcellulose, polyethylene oxide, polyacrylamide, etc.
- a partially cross-linked water-swellable polymer, a copolymer of isobutylene and maleic acid, or the like is used.
- a product to which a blocking inhibitor is added to suppress blocking properties due to moisture absorption of the product can be used.
- the superabsorbent polymer may be in various forms such as powder, particles, granules, pellets, sol, suspension, gel, film, and non-woven fabric. Particularly, particles are preferable.
- cellulose fibers such as chemical pulp and dissolved pulp obtained from wood, and artificial cellulose fibers such as rayon and acetate can be used.
- Softwood pulp is used, which has a longer fiber length than hardwood pulp, which is superior in terms of surface quality.
- the absorbent body 21 may further contain an adhesive, a diffusing agent, a deodorant, an absorbent fiber, and the like.
- Absorbent body 21 as described above contains the superabsorbent polymer in an amount of 40% by weight or more, preferably 40 to 80% by weight, more preferably about 70%, based on the total weight of the superabsorbent polymer and the absorbent fiber. In addition, the ratio of the superabsorbent polymer in the whole is increased, and the thickness is reduced. As the superabsorbent polymer used at this time, a polymer having a large amount of absorption at the time of pressurization, that is, a high pressure absorption is preferable. In the absorbent main body 21, the ratio of the superabsorbent polymer is increasing, and the basis weight of the superabsorbent polymer is increasing.
- the superabsorbent polymers When the basis weight of the superabsorbent polymer is increased, the superabsorbent polymers are present close to each other. When the gel strength of the superabsorbent polymer is weak and the load is applied and the superabsorbent polymer is crushed, the crushed superabsorbent polymers will bend each other and become completely impenetrable to liquids. . Therefore, a polymer having high gel strength is used as the superabsorbent polymer.
- gel strength cannot be directly expressed, it is defined that a gel having higher absorbency under pressure has a higher gel strength.
- the lower limit of the content of the superabsorbent polymer is set to 40% because the higher absorbent polymer is used. If the amount of the rimer is too small, the desired absorbency cannot be obtained, and the upper limit is set to 80% because the amount of the superabsorbent polymer is higher than this and the effect of the structure densification and the gel blocking is desired. This is because absorption power cannot be obtained.
- Absorbent body 21 as described above forms absorbent fiber and superabsorbent polymer in a mixed state, or forms one of them to form a surface layer, and pressurizes at that time or thereafter. It is obtained by reducing the thickness. In this pressure reduction, it is preferable that the absorption main body 21 has a basis weight of 300 gsm or more, a thickness of 2 mm or less, and a density of 150 kgZm 3 or more. A particularly preferred range is a thickness of 1.0-1.8 mm and a density of 300 kgZm 3 or more.
- the thickness of the absorption main body 21 when the pressure is not reduced is about 2.5-3.5 mm. Even if the density is increased in this way, the absorption main body 21 can be made to have the same absorption performance as the conventional one that does not have a reduced absorption performance due to the characteristics of the high-absorbency polymer described above.
- Table 1 shows the details of the superabsorbent polymer actually used.
- the amount of absorption was measured as follows. 0.3 g of a sample of the absorption body 21 was placed in a nylon tea bag (bag), immersed in saline (0.9% NaCl aqueous solution), and after 10 minutes, the tea bag was removed from the saline. Raise completely, hold for 10 minutes, and drain. After draining, the weight of the tea bag was measured, and the value obtained by subtracting the weight from the weight was taken as the absorption amount at normal pressure. The water retention was measured as follows.
- the sample of the absorbent main body 21 was placed in a nylon tea bag, and the tea bag was immersed in 0.9% physiological saline, swelled for 30 minutes, centrifuged at 150 OO rpm for 3 minutes, and weighed after dehydration. The weight of the tea bag was subtracted and the value was divided by the sample weight to obtain the water retention.
- the absorption rate was measured as follows.
- the sample lg mainly composed of absorption 21 was evenly sprayed on a petri dish having a diameter of 90 mm, artificial urine was poured, and the time until all the urine was absorbed was measured.
- the particle size distribution was measured as follows. Apply 10 g of the sample of the main absorbent 21 to 850 m, 500 m, 250 m, 180 m, and 106 m sieves, measure the weight of the sample remaining on each sieve, and consider the loss due to clogging as a percentage. It is shown. The sieving time is one minute. From Table 1, it can be seen that in the superabsorbent polymer of the present invention, small particles of 180 m or less are reduced.
- the absorption under pressure was measured using the apparatus shown in FIG. Specifically, 0.2 g of the sample 200 of the absorbent main body 21 is weighed, and uniformly scattered on a filter paper 201 having a diameter of 50 mm into a circle having a diameter of 40 mm. A weight of 20 g / cm 2 is loaded thereon using the weight 202. At this time, the four sides of the weight 203 are connected to the filter paper 201 using 1.5 mm width cellophane tape and fixed with! /. Prepare a measuring device in which the outlet of the burette 204 and the lower opening of the funnel 205 are connected by a conduit 206. With the sample 200 sandwiched between the weight 202 and the filter paper 201, the filter Place gently and measure the amount of absorption for 60 minutes.
- the absorption main body 21 has a substantially flat surface, and has an embossed surface.
- the surface of the absorbent main body 21 is embossed so that the absorbent fibers hold down the superabsorbent polymer, thereby increasing the adhesiveness of the superabsorbent polymer.
- the absorption body 21 has a projection provided along the groin of the wearer. The surface is formed substantially flat in order to uniformly provide the emboss.
- a manufacturing apparatus 130 used in this method includes an endless belt conveyor 131 having a ventilation structure, and a plurality of spray chutes 132, 132.
- absorbent fibers and high-absorbent polymer are introduced into the same spraying chutes 132, 132, ..., respectively, by airflow, and they are defibrated and mixed, and suctioned from the back side of the conveyor 131.
- the integrated and formed web S1 is fed from the endless collection conveyor 131 to a group of heating and pressing rolls 134, and is sandwiched between the heating and pressing rolls 134a and 134b to reduce the thickness and to reduce the fiber phase.
- the air-laid absorber sheet S is formed by mutual bonding.
- embossing is performed on the surface, and the surface is taken up by the take-up roll 135.
- the take-up roll 135 is carried into the production line of the pants-type diaper 1, unwound, and attached after being cut into a predetermined shape.
- the manufacturing apparatus 130 By using the manufacturing apparatus 130 as described above, it is possible to manufacture the absorbent main body 21 in which the superabsorbent polymer is 40% by weight or more based on the total weight of the superabsorbent polymer and the absorbent fiber, and furthermore, heating By adjusting the pressure by the pressure rolls 134a and 134b, it is possible to manufacture the absorbent body 21 having a basis weight of 3 OOgsm or more and a thickness of 2 mm or less and a density of 150 kgZm 3 or more. Further, it is possible to manufacture the absorbent main body 21 having a more preferable thickness of 1.0 to 1.8 mm and a density of 300 kg Zm 3 or more.
- the absorbent main body 21 manufactured by the manufacturing apparatus 130 as described above is wrapped by crepe paper 22 mainly composed of cottony pulp and having a certain degree of rigidity.
- one main surface 21a of the absorbent main body 21 on the side of the top sheet 11 is made of the crepe paper 22 and the first hot The joint is formed by the melt adhesive 23.
- the first hot-melt adhesive 23 is used to increase the adhesiveness of the superabsorbent polymer of the main absorbent body 21 and increase the gel strength.
- An agent, specifically, a styrene-soprene styrene adhesive is used.
- the other main surface 21b of the absorbent main body 21 on the side of the knock sheet 12 is joined and integrated with the crepe paper 22 and the second hot melt adhesive 24.
- the second hot-melt adhesive 24 is used to fix the superabsorbent polymer and the absorbent fiber so that the gel is not broken or broken after the highly absorbent polymer absorbs urine or the like and gels.
- a water-resistant adhesive specifically, a styrene-ethylene-butylene-styrene adhesive is used.
- the same adhesive is used for the first hot-melt adhesive 23 and the second hot-melt adhesive 24, and specifically, an olefin adhesive is used.
- the second sheet 25 between the top sheet 11 and the crepe paper 22 is for diffusing urine and the like that has penetrated into the top sheet 11 before entering the absorbent main body 21 and soaking into the absorbent main body 21 widely. Therefore, a material having a high porosity, that is, a thick and bulky material is used. On the other hand, since the second sheet 25 is also pressed, it is preferable that the second sheet 25 be excellent in recovery after pressing and have high cushioning properties. Therefore, the second sheet 25 has conventionally used a PEZPP fiber made of polyethylene (PE) and polypropylene (PP). Here, the second sheet 25 has a higher specific gravity and a higher porosity than PE or the like, and has a high degree of porosity.
- PE polyethylene
- PP polypropylene
- PEZPET fibers made of polyethylene terephthalate (PET) and PE, which have excellent recoverability. More specifically, PET is used for the core material, and PE is provided around the core material, or PE is used for the core material, and PE / PET fibers using PET are used around the PET material. Further, the second sheet 25 is made of PE / PET fiber using PET, so that urination and the like can be efficiently absorbed by capillary action and can be diffused to the absorption main body 21.
- PET polyethylene terephthalate
- PE is used for the core material
- PE / PET fibers using PET are used around the PET material.
- the second sheet 25 is made of PE / PET fiber using PET, so that urination and the like can be efficiently absorbed by capillary action and can be diffused to the absorption main body 21.
- hollow PET fibers having a hollow center are mixed.
- PET fibers have a fineness 6. 4 dt fibers are used, and hollow PET fibers with a fineness of 6. Odt are used.
- the second sheet 25 has the same basis weight of 40 gsm as before.
- the absorbent body 9 is made thinner by using the absorbent main body 21 in which the ratio of the superabsorbent polymer is higher than the conventional one, and a superabsorbent polymer having a large amount of pressure absorption is used. Further, the surface is embossed, and the highly absorbent polymer is fixed to the absorbent fibers using the first hot melt adhesive 23, thereby preventing the absorption power of the absorbent main body 21 from being reduced. Further, the absorbent body 9 uses PET fibers or hollow PET fibers for the second sheet 25 so that urine and the like in a wide area of the absorbent main body 21 are in contact with each other, thereby preventing a decrease in the overall absorbing power.
- the pants-type diaper 1 configured as described above uses the absorbent 9 that has been thinned as described above because it is a force that can be carried by the user in a state of being folded and compressed. Although it has the same or higher absorption capacity as that of the conventional product, it is possible to reduce the overall thickness in the folded state, and to carry it easily.
- the present invention is applied to a pants-type diaper 1 as an example, and the present invention is not limited to this.
- the present invention is also applicable to a tape-type diaper, and further to a sanitary napkin, an incontinence pad, and the like. Applicable.
- the structure of the absorbent main body is pressurized by setting the ratio of the superabsorbent polymer to the total weight of the superabsorbent polymer and the absorbent fiber to be 40% by weight or more, and thereby increasing the pressure.
- the liquid-permeable sheet laminated on the main absorbent body by using polyethylene terephthalate, which has at least a high cushioning property, for the liquid-permeable sheet laminated on the main absorbent body, the liquid is diffused, and the area of the liquid entering the main absorbent body is expanded to absorb the liquid. Prevent a decline in performance.
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2006510508A JPWO2005082305A1 (ja) | 2004-03-01 | 2005-02-28 | 吸収体、この吸収体を備えたおむつ及び吸収性物品 |
EP05719652A EP1721589A1 (en) | 2004-03-01 | 2005-02-28 | Absorbent and diapers and absorbent articles provided with the same |
US10/591,574 US20070276349A1 (en) | 2004-03-01 | 2005-02-28 | Absorbent Assembly, Diaper Provided with Absorbent assembly and Absorbent Product |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004056646 | 2004-03-01 | ||
JP2004-056646 | 2004-03-01 |
Publications (1)
Publication Number | Publication Date |
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WO2005082305A1 true WO2005082305A1 (ja) | 2005-09-09 |
Family
ID=34908931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/003335 WO2005082305A1 (ja) | 2004-03-01 | 2005-02-28 | 吸収体、この吸収体を備えたおむつ及び吸収性物品 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070276349A1 (ja) |
EP (1) | EP1721589A1 (ja) |
JP (1) | JPWO2005082305A1 (ja) |
CN (1) | CN1925821A (ja) |
WO (1) | WO2005082305A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011529755A (ja) * | 2008-08-06 | 2011-12-15 | ビーエーエスエフ ソシエタス・ヨーロピア | 流体吸収性物品 |
JP2016067897A (ja) * | 2014-09-30 | 2016-05-09 | 花王株式会社 | 吸収性物品 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009160242A (ja) * | 2008-01-08 | 2009-07-23 | Livedo Corporation | 吸収体及び使い捨て吸収性物品 |
US9095479B2 (en) * | 2012-07-30 | 2015-08-04 | Sca Hygiene Products Ab | Disposable absorbent product with coated element and related methods |
US9394637B2 (en) | 2012-12-13 | 2016-07-19 | Jacob Holm & Sons Ag | Method for production of a hydroentangled airlaid web and products obtained therefrom |
JP6086402B1 (ja) * | 2015-09-30 | 2017-03-01 | 大王製紙株式会社 | 吸収性物品及びその製造方法 |
CN111529212A (zh) * | 2020-05-07 | 2020-08-14 | 陈兵 | 吸收性复合体及制造方法、吸收性物品及制造方法、卫生材料、医疗用品 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04322645A (ja) * | 1991-04-22 | 1992-11-12 | Kao Corp | 吸収性物品 |
JPH08269859A (ja) * | 1995-03-31 | 1996-10-15 | New Oji Paper Co Ltd | 複合不織布および該複合不織布を用いた衛生材料 |
JPH09501579A (ja) * | 1993-07-26 | 1997-02-18 | ザ、プロクター、エンド、ギャンブル、カンパニー | ドライ/ウエット保全性が改良された吸収材製品 |
JP2001120594A (ja) * | 1999-10-29 | 2001-05-08 | Oji Paper Co Ltd | 使いすておむつ |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3426756A (en) * | 1965-06-16 | 1969-02-11 | Johnson & Johnson | Disposable diaper |
US3501813A (en) * | 1965-11-10 | 1970-03-24 | Int Paper Canada | Method of forming a continuous fibrous web |
JPS5522026A (en) * | 1978-07-28 | 1980-02-16 | Kao Corp | Disposable diaper |
US4610678A (en) * | 1983-06-24 | 1986-09-09 | Weisman Paul T | High-density absorbent structures |
US4578068A (en) * | 1983-12-20 | 1986-03-25 | The Procter & Gamble Company | Absorbent laminate structure |
US4731066A (en) * | 1984-03-30 | 1988-03-15 | Personal Products Company | Elastic disposable diaper |
US4573986A (en) * | 1984-09-17 | 1986-03-04 | The Procter & Gamble Company | Disposable waste-containment garment |
PH23956A (en) * | 1985-05-15 | 1990-01-23 | Procter & Gamble | Absorbent articles with dual layered cores |
CA2014203C (en) * | 1989-05-08 | 2000-03-21 | Margaret Gwyn Latimer | Absorbent structure having improved fluid surge management and product incorporating same |
US5217445A (en) * | 1990-01-23 | 1993-06-08 | The Procter & Gamble Company | Absorbent structures containing superabsorbent material and web of wetlaid stiffened fibers |
US5460622A (en) * | 1991-01-03 | 1995-10-24 | The Procter & Gamble Company | Absorbent article having blended multi-layer absorbent structure with improved integrity |
US5599335A (en) * | 1994-03-29 | 1997-02-04 | The Procter & Gamble Company | Absorbent members for body fluids having good wet integrity and relatively high concentrations of hydrogel-forming absorbent polymer |
US20040015144A1 (en) * | 2000-12-08 | 2004-01-22 | Daio Paper Corporation | Absorbent, process for producing the same, and absorbent article comprising the absorbent |
US20030088229A1 (en) * | 2001-11-02 | 2003-05-08 | Andrew Baker | Absorbent article with bimodal acquisition layer |
US7258758B2 (en) * | 2001-12-21 | 2007-08-21 | Kimberly-Clark Worldwide, Inc. | Strong high loft low density nonwoven webs and laminates thereof |
US6851593B2 (en) * | 2002-12-23 | 2005-02-08 | Kimberly-Clark Worldwide, Inc. | System and method for controlling the strain of web material |
-
2005
- 2005-02-28 WO PCT/JP2005/003335 patent/WO2005082305A1/ja active Application Filing
- 2005-02-28 CN CNA200580006533XA patent/CN1925821A/zh active Pending
- 2005-02-28 US US10/591,574 patent/US20070276349A1/en not_active Abandoned
- 2005-02-28 JP JP2006510508A patent/JPWO2005082305A1/ja not_active Abandoned
- 2005-02-28 EP EP05719652A patent/EP1721589A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04322645A (ja) * | 1991-04-22 | 1992-11-12 | Kao Corp | 吸収性物品 |
JPH09501579A (ja) * | 1993-07-26 | 1997-02-18 | ザ、プロクター、エンド、ギャンブル、カンパニー | ドライ/ウエット保全性が改良された吸収材製品 |
JPH08269859A (ja) * | 1995-03-31 | 1996-10-15 | New Oji Paper Co Ltd | 複合不織布および該複合不織布を用いた衛生材料 |
JP2001120594A (ja) * | 1999-10-29 | 2001-05-08 | Oji Paper Co Ltd | 使いすておむつ |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011529755A (ja) * | 2008-08-06 | 2011-12-15 | ビーエーエスエフ ソシエタス・ヨーロピア | 流体吸収性物品 |
JP2016067897A (ja) * | 2014-09-30 | 2016-05-09 | 花王株式会社 | 吸収性物品 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2005082305A1 (ja) | 2007-10-25 |
EP1721589A1 (en) | 2006-11-15 |
US20070276349A1 (en) | 2007-11-29 |
CN1925821A (zh) | 2007-03-07 |
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