Patent ID: 11898307
Assignee: nan
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC D | IPC D

Claim 0:
1. A method for pretreatment and dying applied to a cellulosic product used in a production of textile products carried out in a single bath, the method comprising:
heating water in the single bath to 60° C.;
placing the cellulosic product into the heated single water bath;
adding a wetting agent to the cellulosic product in the heated single water bath such that the cellulosic product is wetted homogenously;
pre-mixing amylase, cellulase, pectinase and a cationizing agent into a premixture;
adding the premixture to the heated single water bath;
treating the cellulosic product in the single bath at a pH value of 6.0 to 6.5 for forty five minutes;
adding a natural dye stuff and a mordant substance to the single bath after the step of treating such that the natural dyestuff is bonded to the cellulosic product; and
continuing dyeing by increasing a temperature of the single bath to 95° C.