EP 0023660 A3 19810506 - PROCESS FOR THE PRODUCTION OF RESIST EFFECTS ON BLENDS OF POLYESTER AND CELLULOSIC FIBRES
Title (en)
PROCESS FOR THE PRODUCTION OF RESIST EFFECTS ON BLENDS OF POLYESTER AND CELLULOSIC FIBRES
Publication
Application
Priority
DE 2930541 A 19790727
Abstract (en)
[origin: EP0023660A2] 1. A process for the production of resist effects on blends of polyester and cellulosic fibres, wherein thereon is applied in either order a reactive dyestuff and a paste containing an alkali and a reducing agent, and thereafter the dyestuff is fixed by steaming, which comprises applying to the fibre material a preparation which is adjusted to a weakly acidic pH value and contains either (i) at least one dischargeable reactive dyestuff capable of coloring both of the fibre components or (ii) a mixture of at least one dischargeable reactive dyestuff and at least one disperse dyestuff capable of being converted into a water-soluble anionic form by the effect of alkali, and optionally a neutral fixing auxiliary for reactive dyestuffs, subsequently overprinting the above bottom impregnation with an alkaline discharge resist printing paste containing in addition to the alkali a reducing agent and optionally a non-dischargeable dyestuff, whereupon a fixing operation by means of superheated steam or using saturated steam in combination with hot air is caused, which is followed by a treatment with alkaline agents and another steaming if the aforesaid weakly acidic preparation did not contain the neutral fixing auxiliary.
IPC 1-7
IPC 8 full level
CPC (source: EP)
Citation (search report)
- GB 1543724 A 19790404 - ICI LTD
- DE 2836391 A1 19800228 - CASSELLA FARBWERKE MAINKUR AG
- GB 2028383 A 19800305 - CASSELLA AG
- EP 0013378 A1 19800723 - CASSELLA AG [DE]
- EP 0021432 A1 19810107 - HOECHST AG [DE]
- DE 2326522 A1 19741212 - HOECHST AG
- DE 1929231 A1 19701217 - HOECHST AG
- FR 2321009 A1 19770311 - ICI LTD [GB]
- DE 2314541 A1 19741010 - HOECHST AG
- RESEARCH DISCLOSURE, Band 174, Nr. 1, 10. Oktober 1978, Seiten 19,20, Nr. 17405, Havant, Hampshire, GB * Ganz *
Designated contracting state (EPC)
CH DE FR GB IT
DOCDB simple family (publication)
EP 0023660 A2 19810211; EP 0023660 A3 19810506; EP 0023660 B1 19830928; DE 2930541 A1 19810212; DE 3065045 D1 19831103
DOCDB simple family (application)
EP 80104279 A 19800721; DE 2930541 A 19790727; DE 3065045 T 19800721