发明名称 |
Wound product cores and processes for making them |
摘要 |
The present invention provides a core for receiving a wound product wherein the core is made of a waste sludge produced in a papermaking process. The process for making the core includes the steps of mixing the sludge with a binder material, which may be either a wet strength or a dry strength agent, and then compressing the mixture into a core through a process such as extrusion or molding. Optionally, the sludge may be dried prior to mixing with the binder material.
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申请公布号 |
US6146498(A) |
申请公布日期 |
2000.11.14 |
申请号 |
US19970846697 |
申请日期 |
1997.04.30 |
申请人 |
KIMBERLY-CLARK WORLDWIDE, INC. |
发明人 |
HSU, JAY C.;TANNER, JAMES J. |
分类号 |
D21J3/04;(IPC1-7):D21F13/00 |
主分类号 |
D21J3/04 |
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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