公开(公告)号：US4120650A

公开(公告)日：1978-10-17

申请号：US857675

申请日：1977-12-05

申请人： Frank Robert Kappler ,  Roma Jean Killian ,  John Joseph Cramer

发明人： Frank Robert Kappler ,  Roma Jean Killian ,  John Joseph Cramer

IPC分类号： C11D3/39 ,  C11D3/395 ,  D06L3/02 ,  D06L3/06

CPC分类号： C11D3/395 ,  C11D3/39 ,  D06L3/02 ,  D06L3/06

摘要： Stained textile fabrics, especially cotton-polyester, rayon-polyester blends stained in use with blood stains, can be reclaimed and returned to use by the process of washing and bleaching said fabrics in the presence of a non-ionic or anionic surface-active agent, together with an oxygen-releasing bleaching agent and a chlorine-releasing bleaching agent, said bleaching agents used either successively or simultaneously. The laundering process involves the use of aqueous solutions of bleaching agents at elevated temperatures and at high pH. The process of the invention provides a synergistic improvement in the removal of stains as compared with the use of either an oxygen-releasing bleaching agent or a chlorine-releasing bleaching agent. The process can include a hot aqueous acid sour treatment to remove rust stains and an aqueous sour to neutralize alkalies in the bleached fabric. The treatment can be completed in a period of time of about 30 to about 90 minutes.

摘要翻译： {PG，1染色纺织品，特别是棉花 - 聚酯，人造丝 - 聚酯混合物使用染色染色，可以回收利用，在非离子或阴离子存在下洗涤和漂白所述织物的过程 表面活性剂与释氧漂白剂和释氯漂白剂一起，所述漂白剂连续或同时使用。 洗涤方法涉及在高温和高pH下使用漂白剂的水溶液。 与使用释氧漂白剂或释氯漂白剂相比，本发明的方法提供了除去污渍的协同改进。 该方法可以包括热酸水处理以除去锈迹和含水酸以中和漂白织物中的碱。 治疗可以在约30至约90分钟的时间段内完成。