FIXATION OF OPTIC WHITENERS ON FIBRE,申请号RU20070134269-传众专利搜索

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发明名称	FIXATION OF OPTIC WHITENERS ON FIBRE
摘要	FIELD: textile, paper. ^ SUBSTANCE: procedure refers to production of wood pulp and can be implemented in pulp-and-paper industry. The procedure consists in whitening fibres of sulphate pulp with a whitening agent on base of chlorine and in washing whitened fibres of sulphate pulp. Upon washing fibres of sulphate pulp are subject to interaction with at least one optic whitener before mixing ponds. Interacting is carried out in solution at pH from 3.5 to 8.0 and temperature from 60 to 80C during 0.5-6 hours. The invention also refers to wood pulp produced by the said procedure. ^ EFFECT: increased whiteness and optic brightness of paper at decreased utilisation of optic whitener. ^ 22 cl, 11 dwg, 11 tbl, 7 ex
申请公布号	RU2386738(C2)	申请公布日期	2010.04.20
申请号	RU20070134269	申请日期	2006.02.21
申请人	INTERNEHSHNL PEHJPA KAMPANI	发明人	KSJUAN TRUONG NGUEN
分类号	D21C9/10;D21C9/12;D21H21/30;D21H21/32	主分类号	D21C9/10
代理机构		代理人
主权项
地址

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