Process for printing synthetic, hydrophobic fiber material

Details Process for printing synthetic, hydrophobic fiber material Process for printing synthetic, hydrophobic fiber material

1981-05-18

1982-09-14

Tungol, Maria Parrish

Bleaching and dyeing; fluid treatment and chemical modification

Process of printing permanently on substrate, other than...

Discharge utilized

8691, D06P 515

Patent

active

043493483

ABSTRACT:
Improved textile materials are produced having white or variously colored designs on a colored substrate on textile materials containing hydrophobic, synthetic fibers by impregnating the materials with dye liquors containing dyeing and padding auxiliaries as well as dyestuffs dischargeable to white, drying or incipiently drying the impregnated materials and then printing a desired pattern onto the materials with a discharge reserve paste containing a discharging agent, and subsequently subjecting the materials to a heat treatment at temperatures from 100.degree. to 230.degree. C., the improvement comprises the dyestuffs dischargeable to white being dyestuffs of the formula ##STR1## wherein n is a number from 1 to 9; and said discharging agent being a base which produces a pH value of at least 8 in a 5% strength aqueous solution.

REFERENCES:
patent: 3787178 (1974-01-01), Renfrew
patent: 4265629 (1981-05-01), Ribka et al.

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