Reference

Cleansing of textiles dyed with disperse dyes

Cleansing of textiles dyed with disperse dyes. Ohura, Osami (Tokai Electro-Chemical Co., Ltd., Japan). Japan. JP 52027277 B4 19 Jul 1977 Showa, 3 pp. (Japanese). (Japan). CODEN: JAXXAD. CLASS: IC: D06P001-16. APPLICATION: JP 69-12623 21 Feb 1969. DOCUMENT TYPE: Patent CA Section: 39 (Textiles) Clean colored fabrics were prepd. by dyeing polyester fabrics or its blends contg. wool, cotton, or synthetic fibers with a disperse dye and treating the fabrics with an aq. mixt. contg. 0.1-10 g/L thiourea S,S-dioxide (I) [4189-44-0] at 60-120.degree.. Thus, a polyester-wool blend was dyed with a liquor contg. 6.6% (on fiber wt.) Sumikaron Blue R and immersed in an aq. mixt. contg. 0.5 g/L I and 1 g/L Na tripolyphosphate for 30 min at 80.degree. to give an unstained colored fabric.

Dyeing of PAN fiber with acid dyes in the presence of amines

Dyeing of PAN fiber with acid dyes in the presence of amines. Abdurakhmanova, Sh. G.; Lapatina, E. B.; Tushkova, R. Ya. (Tashk. Inst. Tekst. Legk. Prom., Tashkent, USSR). Uzb. Khim. Zh., (4), 53-4 (Russian) 1986. CODEN: UZKZAC. ISSN: 0042-1707. DOCUMENT TYPE: Journal CA Section: 40 (Textiles and Fibers) The pickup of acid dyes of anthraquinone and azo types by as-spun acrylic fibers increased insignificantly as concn. of thiourea [62-56-6] or thiourea dioxide [4189-44-0] in the dyeing bath increased from 0 to 0.5 g/L and leveled off at higher concns. The dye pickup increased more significantly in the presence of urea [57-13-6], reaching a max. at urea concn. 2.0 g/L. The effect of urea derivs. on dyeing was attributed to the formation of a salt between CO2H groups of the fiber and NH2 groups of the derivs. No changes in CN groups of the fibers were obsd.