EP 0567975 B1 20000726 - Process for rapid dyeing of composite synthetic sheet material designed to imitate natural leather
Title (en)
Process for rapid dyeing of composite synthetic sheet material designed to imitate natural leather
Title (de)
Verfahren zur Schnellfärbung von zur Nachahmung von Echtleder geeignetem Mehrschicht-Synthetikmaterial
Title (fr)
Procédé de teinture rapide de matériaux composites synthétiques en feuille destinés à imiter du cuir naturel
Publication
Application
Priority
IT TO920367 A 19920428
Abstract (en)
[origin: EP0567975A1] A process for dyeing composite synthetic material having a porous polyurethane matrix and a fiber reinforcement (e.g. nonwoven fabric, polyamide, polyethylene or polyester fibers) embedded in the matrix, and from which to produce a sheet product similar to natural leather. The entire section of the material, consisting of the porous matrix and reinforcement, is treated with dyeing substances (hot-polymerizable plastic resins with a water or organic base, pigments, premetallized azoic dyes) by alternately winding the composite material, in strip form, on and off two opposed rollers and through a tank containing a bath of the dyeing substances in solution or emulsion form, so as to feed the strip of composite material reciprocatingly through the bath. The rollers and tank may be housed in a pressurized container for operating at temperatures of over 100 DEG C. <IMAGE>
IPC 1-7
IPC 8 full level
D06B 3/32 (2006.01); D06B 3/10 (2006.01); D06N 3/00 (2006.01); D06P 3/00 (2006.01); D06P 7/00 (2006.01)
CPC (source: EP)
D06B 3/32 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0567975 A1 19931103; EP 0567975 B1 20000726; AT E195008 T1 20000815; CA 2095007 A1 19931029; DE 69329085 D1 20000831; DE 69329085 T2 20010322; ES 2149790 T3 20001116; IT 1259564 B 19960320; IT TO920367 A0 19920428; IT TO920367 A1 19931028; JP H06101180 A 19940412; PT 567975 E 20001229
DOCDB simple family (application)
EP 93106752 A 19930426; AT 93106752 T 19930426; CA 2095007 A 19930427; DE 69329085 T 19930426; ES 93106752 T 19930426; IT TO920367 A 19920428; JP 12324393 A 19930428; PT 93106752 T 19930426