发明名称 |
CREPING PROCESS UTILIZING LOW TEMPERATURE-CURING ADHESIVE |
摘要 |
A method of increasing the wet strength of a creped sheet, which method involves providing a sheet (36) which includes cellulosic fibers, which sheet has a first side and a second side; applying (50) a low temperature-curing latex adhesive binder composition (58) to the first side of the sheet (36) in a fine, spaced-apart pattern occupying from about 20 to about 50 percent of the surface area of the sheet; adhering the first side of the sheet (36) to a creping surface; and creping the sheet from the creping surface. The binder composition (58) is adapted to adhere the sheet to the creping surface (60) and includes a functional group-containing latex, a functional group-reactive crosslinking agent, and a volatile base. In addition, the creping surface (60) is heated at a temperature no greater than about 100 ~C. The low temperaturecuring latex adhesive binder composition (58) is adapted to have cured to a level, by the time the sheet is removed from the creping surface, which imparts to the creped sheet a cross-direction wet tensile strength which is at least about 50 percent that of an identical creped sheet which has been heated at about 150 ~C for three minutes, in which the cross-direction wet tensile is tested in accordance with TAPPI Test Methods T494om-88 and T456om-87. In addition, the cross-direction wet tensile strength of the creped sheet is at least about 40 grams per centimeter.
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申请公布号 |
CA2314235(A1) |
申请公布日期 |
1999.07.08 |
申请号 |
CA19982314235 |
申请日期 |
1998.12.28 |
申请人 |
KIMBERLY-CLARK WORLDWIDE, INC. |
发明人 |
ZACHARIAS, DUANE K.;ANDERSON, RALPH;WEBER, ROBERT EMIL;SAFFEL, THOMAS C.;LARSON, KENNETH CURTIS;DAVIDSON, CHRISTOPHER LEE |
分类号 |
B31F1/12;D21H17/38;D21H21/20;D21H25/06;(IPC1-7):D21H25/06 |
主分类号 |
B31F1/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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