[EN] FABRIC PRETREATMENT FOR DIGITAL PRINTING<br/>[FR] PRÉTRAITEMENT DE TISSU POUR IMPRESSION NUMÉRIQUE
申请人:LUBRIZOL ADVANCED MAT INC
公开号:WO2014039306A1
公开(公告)日:2014-03-13
An aqueous cationic polyurethane dispersion, coagulating acids, and a reactive crosslinking moiety are disclosed for use as pretreatment for digital printing on substrates such as textiles and garments. The pretreatment comprises a polyurethane having properly positioned tertiary amino groups, generally protonated or quaternized, in combination with a reactive crosslinker, coagulating acid, and some di- or polyvalent metal ions.