发明授权
US4985046A Process for preparing poly (paraphenylene terephthalamide) fibers
dyeable with cationic dyes
失效
制备用阳离子染料染色的聚（对苯二甲酰对苯二胺）纤维的方法
- 专利标题： Process for preparing poly (paraphenylene terephthalamide) fibers dyeable with cationic dyes
- 专利标题（中）： 制备用阳离子染料染色的聚（对苯二甲酰对苯二胺）纤维的方法
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申请号： US363916申请日： 1989-06-09
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公开(公告)号： US4985046A公开(公告)日： 1991-01-15
- 发明人: Jon D. Hartzler
- 申请人： Jon D. Hartzler
- 申请人地址： DE Wilmington
- 专利权人： E. I. Du Pont de Nemours and Company
- 当前专利权人： E. I. Du Pont de Nemours and Company
- 当前专利权人地址： DE Wilmington
- 主分类号： D06M13/00
- IPC分类号： D06M13/00 ; D06M11/00 ; D06M11/55 ; D06M13/02 ; D06M13/148 ; D06M13/244 ; D06M13/248 ; D06M13/268 ; D06M13/322 ; D06M13/35 ; D06M13/352 ; D06M13/355 ; D06M13/402 ; D06M13/432 ; D06M101/00 ; D06M101/16 ; D06M101/30 ; D06M101/34 ; D06M101/36 ; D06P3/04 ; D06P3/24 ; D06P5/22
摘要：
There is provided by this invention a process for preparing poly(paraphenylene terephthalamide) fibers dyeable with cationic dyes. The process comprises soaking poly(paraphenylene terephthalamide) fibers in sulfuric acid, washing the fibers and dipping the acid soaked fibers or never-dried PPD-T fibers in an aqueous solution of a dye promoting species. The fibers can then be dried and subsequently dyed.
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