Reference

Evaluation of the migration of Astrazon-type dyes from wool to polyacrylonitrile during dyeing of blends of wool and polyacrylonitrile fibers

Evaluation of the migration of Astrazon-type dyes from wool to polyacrylonitrile during dyeing of blends of wool and polyacrylonitrile fibers. Malinowska-Grabos, Zdzislawa (Inst. Wiok., Politech. Lodzk., Bielsko-Biala, Pol.). Przegl. Wlok., 38(5), 200-2 (Polish) 1984. CODEN: PRZWAZ. ISSN: 0033-2410. DOCUMENT TYPE: Journal CA Section: 40 (Textiles) In dyeing of acrylic fiber-wool blends with Astrazon cationic dyes, the dyes were first bonded to wool and then migrated to acrylic fibers. The course of exhaustion depended on dye type; Astrazon Green F3BL (I) [69771-44-4] and Astrazon Blue B [3943-82-6] were exhausted to 80-90% within 15 min, whereas the concn. of Astrazon Yellow 3GL (II) [4208-80-4], Astrazon Golden Yellow GL (III) [54060-92-3], Astrazon Orange G (IV) [3056-93-7] and Astrazon Orange RRL [61724-64-9] decreased in the 1st, then increased, and finally decreased with prolonged dyeing. This is explained by partial dye pptn. during initial dyeing, dye adsorption on fibers, and migration from wool to acrylic fibers. I is strongly bonded to wool, showing almost no migration to acrylic fibers, while the other dyes, esp. II, III, and IV, migrated easily from wool to acrylic fibers. II, III, IV, and Astrazon Blue FGG [93792-53-1] are best for dyeing acrylic-wool blends.

Basic dye liquid compositions

Basic dye liquid compositions. (Hodogaya Chemical Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 60004559 A2 11 Jan 1985 Showa, 4 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: ICM: C09B067-34. APPLICATION: JP 83-110935 22 Jun 1983. DOCUMENT TYPE: Patent CA Section: 40 (Textiles) The title compns. having excellent storability at high dye concn. contain inorg. or org. oxidizing agent, a basic oxazine dye, and a basic azo dye [and other basic dye(s)]. Thus, C.I. Basic Blue 3 [55840-82-9] (liq., 80% concn.) 287, C.I. Basic Red [96538-17-9] (liq., 50% concn.) 140, C.I. Basic Yellow 28 [54060-92-3] (liq. 100% concn.) 200, Tohosalt DP-150 (1:1 polyoxyethylene aralkylphenyl ether sulfate-polyoxyethylene aralkylphenyl ether mixt.) 300, ethylene glycol 53, methanesulfonic acid 20, and NaClO3 10 parts were mixed to prep. 1000 parts uniform liq. compn., which was sealed up to 55° for 7 days, showing color difference (DE, before and after storage, on polyester fiber) 0.3, vs. 1.9 in the absence of NaClO3.