Planar product including a plurality of adhesively bonded fibrous plies
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-003/00
B32B-031/00
B31F-001/12
D21H-011/00
출원번호
US-0850063
(2001-05-08)
우선권정보
DE-0022464 (2000-05-09)
발명자
/ 주소
Mauler, Dirk
Reichling, Bernhard
출원인 / 주소
SCA Hygiene Products GmbH
대리인 / 주소
Young & Thompson
인용정보
피인용 횟수 :
0인용 특허 :
4
초록▼
The present invention relates to a planar product in which a plurality of fibrous plies are bonded to each other with the aid of an adhesive containing a polymer with units derived from a vinylamine. This adhesive improves wet and/or dry ply bonding. The present invention relates more particularly t
The present invention relates to a planar product in which a plurality of fibrous plies are bonded to each other with the aid of an adhesive containing a polymer with units derived from a vinylamine. This adhesive improves wet and/or dry ply bonding. The present invention relates more particularly to tissue products and non-woven products in which this adhesive promotes ply bonding.
대표청구항▼
1. A tissue paper product comprising a plurality of tissue paper plies, each of the tissue paper plies being a wet-laid fibrous web with an inner and/or outer crepe, and an adhesive that bonds the plies to each other, the adhesive containing a polymer having units derived from a vinylamine. 2. The t
1. A tissue paper product comprising a plurality of tissue paper plies, each of the tissue paper plies being a wet-laid fibrous web with an inner and/or outer crepe, and an adhesive that bonds the plies to each other, the adhesive containing a polymer having units derived from a vinylamine. 2. The tissue paper product according to claim 1, wherein said adhesive contains (a) said polymer having units derived from a vinylamine, and (b) at least one component selected from the group consisting of polyvinyl alcohol, polyvinyl acetate, a cellulose ether and starch. 3. The tissue paper product according to claim 2, wherein said adhesive contains said vinylamine polymer (a) in the range of 0.1 to 20% by weight, and said component (b) in the range of 0.1 to 20% by weight; each relative to the total weight of the adhesive. 4. The tissue paper product according to claim 3, wherein said adhesive contains said vinylamine polymer (a) in the range of 1 to 10% by weight, polyvinyl alcohol in the range of 1 to 10% by weight, and the balance water; each relative to the total weight of the adhesive. 5. The tissue paper product according to claim 3, wherein the percentage of polyvinylamine polymer (a) ranges from 2 to 7% by weight. 6. The tissue paper product according to claim 1, wherein said polymer is a polyvinylamine obtained by polymerization of a vinylamide with subsequent hydrolysis of amide groups in the range of 5 to 95%. 7. The tissue paper product according to claim 1, wherein the tissue product has a basis weight ranging from 10 to 65 g/m2. 8. The tissue paper product according to claim 7, wherein the tissue product has a basis weight ranging from 10 to 45 g/m2. 9. The tissue paper product according to claim 1, wherein said tissue product is selected from the group consisting of a wipe, a sanitary product, a paper handkerchief, a household towel, a towel, a facial tissue, a napkin, a serviette, a bed linen and a garment. 10. The tissue paper product according to claim 1, wherein at least one ply of said tissue product is embossed. 11. The tissue paper product according to claim 1, wherein the vinylamine polymer has a weight-averaged molecular weight of at least 10,000 g/mol. 12. The tissue paper product according to claim 11, wherein the weight-averaged molecular weight ranges between 50,000 to 10,000,000 g/mol. 13. The tissue paper product according to claim 12, wherein the weight-averaged molecular weight ranges between 100,000 to 1,500,000 g/mol. 14. A method of bonding a plurality of tissue paper plies, which comprises the steps of making each of the tissue paper plies by providing a wet-laid fibrous web with an inner and/or outer crepe, and applying an effective amount of an adhesive containing a polymer with units derived from a vinylamine to at least part of a contact surface of the plies to bond the plies to each other. 15. The method according to claim 14, wherein the effective amount of adhesive applied ranges from 0.01 to 50 g/m2. 16. The method according to claim 15, wherein the effective amount of adhesive applied ranges from 0.1 to 20 g/m2. 17. The method according to claim 14, wherein the tissue product has a basis weight ranging from 10 to 65 g/m2. 18. A tissue paper product, comprising: a multiply structure with plural tissue paper plies that each include a fibrous web and an inner and/or outer crepe, each of the plies having a weight basis ranging from 10 to 65 g/m2; and an adhesive between each adjacent pair of said plies that adheres the adjacent plies to each other, said adhesive comprising 1% to 10% by weight vinylamine polymer, 1% to 10% by weight polyvinyl alcohol, and water.
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이 특허에 인용된 특허 (4)
Ruppel Remy (Horbourg FRX) Laurent Pierre (Kunheim FRX) Hungler Joel (Colmar FRX), Absorbent combined sheet matierial.
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