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    • 4. 发明授权
    • Method of moist creping absorbent paper base sheet
    • 吸水纸基片湿绉法
    • US08398819B2
    • 2013-03-19
    • US12961546
    • 2010-12-07
    • Kang Chang YehChristopher J. PetersMark S. HunterDaniel J. GeddesHung Liang Chou
    • Kang Chang YehChristopher J. PetersMark S. HunterDaniel J. GeddesHung Liang Chou
    • B31F1/12
    • D21F11/14D21F11/006D21H17/36D21H17/55D21H21/146
    • A method of moist creping absorbent paper base sheet includes forming a nascent web including at least a major portion of flattened ribbonlike cellulosic fibers of recycled fiber. A creping adhesive coating including an admixture of polyvinyl alcohol and a polyamide crosslinked with epichlorohydrin is applied to a Yankee dryer. The nascent web is passed through a nip, defined between a suction pressure roll and the Yankee dryer, having a controlled loading. The nascent web is adhered to the Yankee dryer and dried on the Yankee dryer to a moisture content corresponding to a sheet temperature, immediately prior to the creping blade, of from about 110° C. to about 121° C. The nascent web is creped at a sheet temperature of from about 110° C. to about 121° C. from the Yankee dryer with an undulatory creping blade bearing against the Yankee dryer to form a moist biaxially undulatory web, which is dried.
    • 一种湿起皱吸收性纸基片的方法包括形成包含再生纤维的至少大部分扁平带状纤维素纤维的初生纤维网。 将包含聚乙烯醇和与表氯醇交联的聚酰胺的混合物的起皱粘合剂涂料施加到扬克烘缸。 初生纤维网通过一个夹紧部分,定义在吸入压力辊和扬克烘缸之间,具有受控的负载。 新生网被粘附在扬克烘干机上,并在扬克烘干机上干燥,在起皱叶片之前的片温度相当于约110℃至约121℃的水分含量。初生纤维网起皱 在具有波纹起皱叶片的扬克式干燥器的约110℃至约121℃的片材温度下,与杨克干燥器相对,形成潮湿的双轴波动幅材,其被干燥。