EP 0180119 A3 19870826 - PROCESS FOR PRODUCING WHITE AND COLOURED RESISTS ON POLYAMIDE FIBROUS MATERIALS
Title (en)
PROCESS FOR PRODUCING WHITE AND COLOURED RESISTS ON POLYAMIDE FIBROUS MATERIALS
Publication
Application
Priority
DE 3439532 A 19841029
Abstract (en)
[origin: US4680033A] In the conventional discharge printing on polyamide fiber materials using acid dyes, above all, the very low wet and light fastness properties of the designs obtained in this manner are frequently an obstacle to the wide expansion of this interesting technique in practice. Applying this known patterning method for wool or nylon to resist prints made with reactive dyes being distinguished by better fastness level, does not always produce satisfactory white resist effects when, for example, sulfite compounds as the resist agent and reactive dyes having esterified beta -hydroxyethylsulfonyl groups as the reactive radical are taken into consideration; colored effects having a bright hue are not even possible at all in various cases. It has now been found that, using sulfite compounds and reactive dyes of the vinylsulfonyl type, the above mentioned difficulties can be remedied when, instead of the ester derivatives of said dyestuffs, according to this invention such dyes which have been converted before they are applied into the free vinylsulfonyl form, are brought to interaction with the preprinted resist agent to become immediately and completely desactivated and thus resulting unobjectionable resist effects at the respective places of the textile material.
IPC 1-7
IPC 8 full level
D06P 1/38 (2006.01); D06P 3/14 (2006.01); D06P 3/24 (2006.01); D06P 5/12 (2006.01)
CPC (source: EP US)
D06P 5/12 (2013.01 - EP US); Y10S 8/917 (2013.01 - US); Y10S 8/924 (2013.01 - US)
Citation (search report)
- [Y] US 3700402 A 19721024 - NODA MASAJIRO
- [Y] DE 2916673 B1 19801030 - BASF AG
- [Y] EP 0023660 A2 19810211 - HOECHST AG [DE]
- [A] EP 0013378 A1 19800723 - CASSELLA AG [DE]
- [A] DE 2128834 A1 19711223
- [AD] DE 2846247 A1 19790426 - MEISEI CHEMICAL WORKS LTD
- [A] GB 712037 A 19540714 - HOECHST AG
Designated contracting state (EPC)
AT CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0180119 A2 19860507; EP 0180119 A3 19870826; EP 0180119 B1 19901122; AT E58564 T1 19901215; DE 3439532 A1 19860430; DE 3580650 D1 19910103; JP 2555012 B2 19961120; JP S61108783 A 19860527; US 4680033 A 19870714
DOCDB simple family (application)
EP 85113300 A 19851019; AT 85113300 T 19851019; DE 3439532 A 19841029; DE 3580650 T 19851019; JP 23964185 A 19851028; US 79120985 A 19851025