发明名称 |
Manufacture of paper and paper board |
摘要 |
Process for making paper or paper board comprising, forming an aqueous cellulosic suspension, adding a retention system to the cellulosic suspension, draining the suspension on a screen to form a sheet and drying the sheet, wherein the retention system comprises a swelling clay which has a TAPPI brightness of at least 70.
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申请公布号 |
US2004149407(A1) |
申请公布日期 |
2004.08.05 |
申请号 |
US20030479942 |
申请日期 |
2003.12.04 |
申请人 |
CHEN GORDON CHENG;WILLIAMS STEPHANIE CAINE |
发明人 |
CHEN GORDON CHENG;WILLIAMS STEPHANIE CAINE |
分类号 |
D21F11/00;D21H17/00;D21H17/67;D21H17/68;D21H21/10;(IPC1-7):D21H17/68 |
主分类号 |
D21F11/00 |
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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