专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO1997000354A1 PROCESS FOR PREPARING REDUCED ODOR AND IMPROVED BRIGHTNESS INDIVIDUALIZED, POLYCARBOXYLIC ACID CROSSLINKED FIBERS 审中-公开
标题翻译：制备减少气味和改善光亮度的方法，聚碳酸酯交联纤维
公开(公告)号：WO1997000354A1
公开(公告)日：1997-01-03
申请号：PCT/US1996008063
申请日：1996-05-30
申请人： THE PROCTER & GAMBLE COMPANY , WEYERHAEUSER COMPANY
发明人： THE PROCTER & GAMBLE COMPANY , WEYERHAEUSER COMPANY , COOK, Jeffery Todd , DANIELS, Walter, Douglas , RODRIGUEZ, Pedro, Antonio , GRAEF, Peter, Allen , BOLSTAD, Clifford, Roy , DUNCAN, William, Lloyd
IPC分类号： D21C09/00
CPC分类号： A61L15/46 , A61L15/24 , A61L15/28 , A61L2300/11 , D06M11/38 , D06M11/50 , D06M13/192 , D06M13/207 , D21C9/005 , C08L33/02 , C08L1/00
摘要： Disclosed is a process for making reduced odor individualized, crosslinked fibers which includes the steps of providing cellulosic fibers, contacting the fibers with a solution containing a C2-C9 polycarboxylic acid crosslinking agent, mechanically separating the fibers into substantially individual form, drying the fibers and reacting the crosslinking agent with the individualized fibers to form intrafiber crosslink bonds. The individualized cellulosic fibers are then contacted with a strong alkaline solution and strong oxidizing agent to reduce the odor and increase the brightness. Preferably, the crosslinking agent is citric acid, and preferably, between about 1.0 weight % and about 12.0 weight % of the crosslinking agent reacts to form the intrafiber crosslink bonds. Preferably, the alkaline solution is an aqueous solution of sodium hydroxide, and preferably, about 0.09 weight % of the sodium hydroxide, on a dry fiber weight basis, is applied to the crosslinked fibers. Preferably, the oxidizing agent is hydrogen peroxide, and preferably, about 0.04 weight % of the hydrogen peroxide, on a dry fiber weight basis, is applied to the crosslinked fiber. The reduced odor individualized, crosslinked fibers are useful in a variety of absorbent structure applications.
摘要翻译：公开了一种制备减少气味的个体化交联纤维的方法，其包括以下步骤：提供纤维素纤维，使纤维与含有C 2 -C 9多元羧酸交联剂的溶液接触，将纤维机械分离成基本上单独的形式，干燥纤维和使交联剂与各自的纤维反应形成纤维内交联键。然后将个体化纤维素纤维与强碱性溶液和强氧化剂接触以降低气味并增加亮度。优选地，交联剂是柠檬酸，优选约1.0重量％至约12.0重量％的交联剂反应以形成纤维内交联键。优选地，碱性溶液是氢氧化钠的水溶液，优选将基于干纤维重量的约0.09重量％的氢氧化钠施加到交联纤维上。优选地，氧化剂是过氧化氢，优选地，基于干纤维重量的约0.04重量％的过氧化氢施加到交联纤维上。减少的气味个性化的交联纤维可用于各种吸收结构应用。

2. 发明申请

WO1988004704A1 HYDROPHILIC CELLULOSE PRODUCT AND METHOD OF ITS MANUFACTURE 审中-公开
标题翻译：水解纤维素产品及其制造方法
公开(公告)号：WO1988004704A1
公开(公告)日：1988-06-30
申请号：PCT/US1987002909
申请日：1987-11-06
申请人： WEYERHAEUSER COMPANY
发明人： WEYERHAEUSER COMPANY , GRAEF, Peter, Allen
IPC分类号： D21C09/00
CPC分类号： D21H23/28 , A61L15/28 , D21C9/005 , D21H17/06 , C08L1/02
摘要： A method of making a resilient hydrophilic cellulosic pulp particularly suitable for conversion into an absorbent fluff for products such as disposable diapers. The process involves treating a wet or partially dried cellulosic fiber web with an aqueous solution of a glycol an dialdehyde. Glyoxal and propylene glycol are preferred materials. These are desirable sprayed on a wet or only partially dried sheet at some convenient location on a conventional paper machine. This location is not critical, but a point about midway through the press section has given excellent results. The treated sheet is then dried conventionally. There is no need for the use of any catalysts or for a prolonged curing step at elevated temperatures. The products of the invention are characterized by a much increased absorbency rate and by a somewhat higher water holding capacity. The sheets also require less power for milling into a fibrous fluff. Knots ou fiber clumps are reduced and there is no significant increase in fiber fines due to embrittlement of the treated pulp product. The invention further includes the products made using the present method.
摘要翻译：一种制造弹性亲水性纤维素纸浆的方法，特别适用于将产品如一次性尿布转化成吸收性绒毛。该方法包括用二醇和二醛的水溶液处理湿的或部分干燥的纤维素纤维网。乙二醛和丙二醇是优选的材料。这些需要在常规造纸机上的一些方便的位置喷涂在湿的或仅部分干燥的片材上。这个位置并不重要，但通过新闻部分的中间点已经取得了很好的成果。然后将经处理的片材经常干燥。在升高的温度下不需要使用任何催化剂或延长固化步骤。本发明的产品的特征在于吸收速率大大提高，保水能力更高。片材也需要更少的功率来铣削成纤维绒毛。纤维团的结节减少，并且由于处理后的纸浆产品的脆化而导致的纤维细粉没有显着增加。本发明还包括使用本方法制造的产品。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式