Invention Grant
US09181657B2 Method of increasing paper strength by using natural gums and dry strength agent in the wet end
有权
在湿端使用天然树胶和干强力剂增加纸张强度的方法
- Patent Title: Method of increasing paper strength by using natural gums and dry strength agent in the wet end
- Patent Title (中): 在湿端使用天然树胶和干强力剂增加纸张强度的方法
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Application No.: US13731311Application Date: 2012-12-31
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Publication No.: US09181657B2Publication Date: 2015-11-10
- Inventor: David J. Castro , Weiguo Cheng
- Applicant: Nalco Company
- Applicant Address: US IL Naperville
- Assignee: Nalco Company
- Current Assignee: Nalco Company
- Current Assignee Address: US IL Naperville
- Agency: Leydig, Voit & Mayer, Ltd.
- Main IPC: D21H17/31
- IPC: D21H17/31 ; D21H17/32 ; D21H17/45 ; D21H17/69 ; D21H21/10 ; D21H21/20 ; D21H21/18

Abstract:
The invention provides a method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in a papermaking process. The method improves the efficiency of drainage aids or wet web strength aids or wet strength aid by coating at least some of the filler particles with a natural gum and with a material that prevents the filler materials form adhering to those additives. The drainage additive or wet web strength additive or wet strength aid holds the cellulose fibers together tightly and is not wasted on the filler particles.
Public/Granted literature
- US20140182800A1 METHOD OF INCREASING PAPER STRENGTH BY USING NATURAL GUMS AND DRY STRENGTH AGENT IN THE WET END Public/Granted day:2014-07-03
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