Abstract:
FIBERGLASS FABRICS AND OTHER SILICEOUS FIBER FABRICS IN THE GREIGE CONDITION ARE RENDERED CLEAN AND WHITE PRIOR TO APPLYING DYE OR FINISH BY HEAT-TREATING THE FABRICS AT A TEMPERATURE SUFFICIENT TO SET CRIMP IN THE GLASS YARNS, TO VOLATILIZE VOLATILE COMPONENTS OF THE SIZING ON THE FABRIC AND TO DEXTRINIZE THE STARCHES IN THE SIZING, THEN TREATING THE FABRIC WITH A CONCENTRATED BLEACHING SOLUTION, DRYING AT RELATIVELY HIGH TEMPERATURE, AND WASHING AND RINSING.
Abstract:
1288405 Dyed glass textiles INTERGLASTEXTIL GmbH 14 Oct 1969 50534/69 Heading D1B Multicoloured glass textiles are obtained by flocculating a pigment with a quantitative amount of water-soluble, cationic polyelectrolyte to substantially flocculate the pigment without sedimentation followed by forming a resinous dye bath containing the flocculated pigment which is then applied to a glass textile material containing floated or other effect yarns. The water-soluble cationic polyelectrolyte is preferably a polyamino polyacrylamide, the resinous materials preferably containing a polyacrylic latex, a silicone, polyvinyl alcohol or polyvinyl acetate which may contain a silicane crosslinking agent. The glass material may be prewetted and squeezed to a water content of 10 to 40% by weight, top finishing compositions e.g. 0.5 to 5% by weight of thermoplastic resin and a chromium complex or of acrylic resin may be applied after application of the pigment.