发明授权
- 专利标题: Process for the dyeing of polyamide textiles with metal phthalocyanine dyestuffs
- 专利标题(中): 用金属酞菁染料染色聚酰胺纺织品的工艺
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申请号: US3622263D申请日: 1968-07-05
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公开(公告)号: US3622263A公开(公告)日: 1971-11-23
- 发明人: GROLL MANFRED , BIEN HANS-SAMUEL , FRITZE ERNST-ROBERT
- 申请人: BAYER AG
- 专利权人: Bayer Ag
- 当前专利权人: Bayer Ag
- 优先权: DEF0052943 1967-07-13
- 主分类号: C09B47/06
- IPC分类号: C09B47/06 ; C09B47/24 ; D06P3/24
摘要:
The process for dyeing synthetic super polyamides with metal phthalocyanine sulfonic acids wherein the improvement comprises applying a phthalocyanine containing 2-3 sulfonic acid groups in the 4- or 5-position of their benzene nuclei to provide dyeings of improved light-fastness.
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