Process for printing on synthetic fibers: reducing agent and alkoxylated amine for discharge
AssigneeBASF SE
InventorsAdolf Blum, Norbert Grund
Life of this patent
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Abstract
Process for printing on synthetic fibers of polyester, triacetate, acetate and polyamide as well as mixtures of these substances with disperse dyes according to the discharge or reserve discharge process, wherein a mixture of (a) 5 to 75 parts by weight of at least one reducing agent and (b) 5 to 90 parts by weight of a specified alkoxylated amine is used as the discharging agent.
Claims9
In the process for printing on synthetic fibers of polyester, triacetate, acetate and polyamide as well as mixtures thereof with disperse dyes according to the discharging or reserve discharging process the improvement wherein the discharging agent comprises a mixture of
- (a) 5 to 75 parts by weight of at least one reducing agent selected from the group consisting of methane or ethane sulfinate group containing reducing agents, monosaccharides, reducing disaccharides, thiourea dioxide and mixtures thereof.
- (b) 5 to 90 parts by weight of an alkoxylated amine selected from the group consisting of alkoxylated amines having the formulas ##STR18## in which A represents hydrogen or methyl, B stands for C.sub.1 to C.sub.4 alkyl or a radical having the formula ##STR19## wherein X=1, 2, 3 or 4, Y=2, 3, 4, 5 or 6 and Z=0, 1, 2 or 3.
Dependencies are inferred from the claim text.