会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 56. 发明授权
    • Chemically modified pulp fiber
    • 化学改性纸浆纤维
    • US06361651B1
    • 2002-03-26
    • US09447380
    • 1999-11-23
    • Tong Sun
    • Tong Sun
    • D21H2120
    • D21H11/20
    • The wet strength softness absorbency, absorbency rate and other valuable properties in paper products, tissues, wipes, towels, etc. can be improved by using, in the paper forming process, a cellulosic material comprising a carboxymethyl cellulose material associated with a monomeric or polymeric cationic additive material. A process of the invention comprises a fiber surface carboxymethylation and an aqueous medium followed by blending the modified fibers with a cationic additive under varying conditions and wet forming the tissue and towel products. The additive is typically a cationic additive that preferentially associates with a carboxymethyl group on the cellulose surface. The affinity between the positively charged cationic groups in the polymeric or monomeric additive material to the negatively charged carboxyl group in the carboxymethyl cellulose modified fiber improves various attributes of the paper products.
    • 通过在造纸过程中使用包含与单体或聚合物相关的羧甲基纤维素材料的纤维素材料,可以改善纸制品,纸巾,擦拭物,毛巾等中的湿强度柔软度吸收性,吸收率和其它有价值的性质 阳离子添加剂材料。 本发明的方法包括纤维表面羧甲基化和水性介质,随后在不同条件下将改性纤维与阳离子添加剂共混,并湿法形成组织和毛巾产品。 添加剂通常是阳离子添加剂,其优先与纤维素表面上的羧甲基基团缔合。 聚合物或单体添加剂物质中的带正电荷的阳离子基团与羧甲基纤维素改性纤维中带负电的羧基之间的亲和性提高了纸制品的各种属性。