Absorber including by-pass channel member and absorber product therefrom
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-003/10
A61F-013/15
출원번호
UP-0509865
(2003-04-04)
등록번호
US-7521109
(2009-07-01)
우선권정보
JP-2002-103743(2002-04-05)
국제출원번호
PCT/JP03/004342
(2003-04-04)
§371/§102 date
20041001
(20041001)
국제공개번호
WO03/084452
(2003-10-16)
발명자
/ 주소
Suzuki, Migaku
Moriya, Reiko
출원인 / 주소
Japan Absorbent Technology Institute
대리인 / 주소
Oliff & Berridge, PLC
인용정보
피인용 횟수 :
37인용 특허 :
5
초록▼
An absorber comprising a laminate of two or more layers of highly water-absorbent sheets each containing a highly water-absorbent resin in high proportion, which absorber can satisfactorily cope with the feeding speed of aqueous liquid. In particular, an absorber comprising a laminate water-absorben
An absorber comprising a laminate of two or more layers of highly water-absorbent sheets each containing a highly water-absorbent resin in high proportion, which absorber can satisfactorily cope with the feeding speed of aqueous liquid. In particular, an absorber comprising a laminate water-absorbent member, the laminate water-absorbent member consisting of a laminate of two or more layers of highly water-absorbent sheets each containing a highly water-absorbent resin and capable of absorbing an aqueous liquid, and a by-pass channel member, the by-pass channel member having a channel for, providing that an upper side refers to the side of laminate water-absorbent member fed with the aqueous liquid, moving the aqueous liquid fed to a first highly water-absorbent sheet disposed at the uppermost part of the laminate water-absorbent member from the first highly water-absorbent sheet to another highly water-absorbent sheet.
대표청구항▼
The invention claimed is: 1. An absorber comprising: a laminated absorbent member comprised of laminated two or more super-absorbent sheets, a first upper super-absorbent sheet of the super-absorbent sheets has an uppermost surface, each of said super-absorbent sheets containing a super-absorbent p
The invention claimed is: 1. An absorber comprising: a laminated absorbent member comprised of laminated two or more super-absorbent sheets, a first upper super-absorbent sheet of the super-absorbent sheets has an uppermost surface, each of said super-absorbent sheets containing a super-absorbent polymer capable of absorbing aqueous liquid, and a by-pass channel member which has a channel for moving aqueous liquid, fed to the uppermost surface of said first super-absorbent sheet, from the uppermost surface of the first super-absorbent sheet to another super-absorbentsheet of the super-absorbent sheets; and wherein the by-pass channel member transports a portion of liquid disposed at the uppermost surface of the first super-absorbent sheet to said another super-absorbent sheet so that the portion of the liquid transported by the by-pass channel member to said another super-absorbent sheet is not absorbed by the first super-absorbent sheet, and the first super-absorbent sheet is closer to a skin of a user than the another super-absorbent sheet when the absorber is worn by the user, at least a part of the by-pass channel member is composed of a non-woven sheet member, air gaps inside thereof function as the channel for moving the aqueous liquid; a part of the non-woven sheet member is positioned above the first super-absorbent sheet; and another part of the non-woven sheet member is positioned either above the another super-absorbent sheet or under the laminated absorbent member or both. 2. The absorber according to claim 1, wherein at least one layer of the super-absorbent sheets contains 50 wt % or more of the super-absorbent polymer and a thickness of the super-absorbent sheet is 1.5 mm or less. 3. The absorber according to claim 1, wherein a part of the non-woven sheet member is positioned above the first super-absorbent sheet so as to rise from a surface thereof. 4. The absorber according to claim 1, wherein a part of the non-woven sheet member covers an area in a vicinity of a center portion of the first super-absorbent sheet, and functions as a skin-contact sheet. 5. An absorbent product to be fed with an aqueous liquid from an upper side thereof, comprising an aqueous liquid permeable sheet member, the absorber according to claim 1, and an aqueous liquid impermeable sheet member, from the top in this order. 6. An absorber of claim 1, wherein the by-pass channel member also transports a portion of the aqueous liquid fed directly onto the by-pass channel member to said another super-absorbent sheet. 7. The absorber according to claim 1, wherein the basis weight of the non-woven sheet member is 20 mg/m2 or more. 8. The absorber according to claim 1, wherein apparent specific gravity of the non-woven sheet member is 0.1 g/cm3 or less. 9. The absorber according to claim 1, wherein the non-woven sheet member uses thermal-bond non-woven fabric. 10. The absorber according to claim 9, wherein the thermal-bond non-woven fabric is constructed in the form of laminate of the hydrophobic and hydrophilic fiber layers. 11. The absorber according to claim 1, wherein the non-woven sheet member uses non-woven fabric in a multi-layered structure. 12. The absorber according to claim 11, wherein the non-woven fabric in a multi-layered structure is a composite sheet made by bonding a paper layer or non-woven fabric layer with a flat and smooth surface altenately with one another.
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이 특허에 인용된 특허 (5)
Raidel,Maria; Aschenbrenner,Franz, Absorbent article and process for the directed drainage of fluids released in a localized manner.
Ahr Nicholas A. (Cincinnati OH) Smith Douglas J. (Woodbury MN), Disposable absorbent article having an intermediate layer interposed between the topsheet and the absorbent core.
Trokhan Paul D. (Hamilton OH) Boutilier Glenn D. (Blue Ash OH), Papermaking belt and method of making the same using differential light transmission techniques.
Arizti, Blanca; Bianchi, Ernesto; Ehrnsperger, Bruno Johannes; Jackels, Hans Adolf; Kreuzer, Carsten Heinrich; Rosati, Rodrigo, Absorbent article with high absorbent material content.
Ehrnsperger, Bruno Johannes; Arizti, Blanca; Bianchi, Ernesto; Jackels, Hans Adolf; Kreuzer, Carsten Heinrich; Rosati, Rodrigo, Absorbent article with high absorbent material content.
Ehrnsperger, Bruno Johannes; Arizti, Blanca; Bianchi, Ernesto; Jackels, Hans Adolf; Kreuzer, Carsten Heinrich; Rosati, Rodrigo, Absorbent article with high absorbent material content.
Arizti, Blanca; Bianchi, Ernesto; Ehrnsperger, Bruno Johannes; Jackels, Hans Adolf; Kreuzer, Carsten Heinrich; Rosati, Rodrigo, Absorbent core with high superabsorbent material content.
Tian, Gonglu; Ondisco, Matthew Thomas; Bergman, David L.; Messner, Bernfried; Smith, Scott J., Particulate superabsorbent polymer composition having improved stability.
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