Reference

Bulk-dyed polyacrylonitrile fibers

Bulk-dyed polyacrylonitrile fibers. Zaporojan, Ludmila; Tataru, Doina; Ciocoiu, Laurentia; Moisei, Lidia (Centrala Industriala de Fire si Chimice, Rom.). Rom. RO 83262 B 30 Jun 1984, 2 pp. (Romanian). (Romania). CODEN: RUXXA3. CLASS: IC: D01F001-04. APPLICATION: RO 81-105380 24 Sep 1981. DOCUMENT TYPE: Patent CA Section: 40 (Textiles) The title fibers with improved uniformity and strength are manufd. by spinning solns. of polyacrylonitrile (I) contg. 2-15% basic dye superconcs. and 4-16% finely ground pigment pastes. Thus, a paste contg. carbon black 18, I 6, ethylene carbonate (II) 237, and water 88 g was mixed with a compn. contg. C.I. Basic Red 22 [12221-52-2] 9.6, C.I. Basic Yellow 13 [12217-50-4] 8.4, II 116, and water 19 g, and 135 g of this mixt. was added to a spinning soln. contg. I 300, II 1462, and water 283 g. The dark maroon color of 2.5-denier fibers from this spinning soln. exhibited 40° washing, perspiration, and cold-water resistance values 5/5/5.

Decorative sheets and coverings comprising poly(vinyl chloride) and cationic dyes

Decorative sheets and coverings comprising poly(vinyl chloride) and cationic dyes. Lenox, Ronald Shaeffer; Sparks, Moses, Jr.; Schwartz, Anne Louise (Armstrong World Industries, Inc., USA). Eur. Pat. Appl. EP 94228 A2 16 Nov 1983, 29 pp. DESIGNATED STATES: R: AT, BE, CH, DE, FR, GB, IT, LI, LU, NL, SE. (English). (European Patent Organization). CODEN: EPXXDW. CLASS: IC: D06N007-00; D06N003-00. APPLICATION: EP 83-302587 9 May 1983. PRIORITY: US 82-376550 10 May 1982. DOCUMENT TYPE: Patent CA Section: 38 (Plastics Fabrication and Uses) Section cross-reference(s): 42 Decorative PVC [9002-86-2] sheets having a substantially nonmigratable image is prepd. by interfacing an image compn. comprising a cationic dye and a binder which will not impede migration of the dye with PVC substrate and heating the assembly to migrate the dye into the substrate. Thus, 6 parts C.I. Basic Yellow 13 [12217-50-4] dye were mixed with 100 parts of an ink base comprising poly(vinyl butyral) binder 9.1, xylene 66.9, 1-butanol 22.5, and N,N,N',N'-tetramethylethylenediamine stabilizer 1.5 parts to give an ink which was stable for 2 wks. The ink was rotogravure-printed onto a transfer sheet which was then used to transfer print pieces of clear fused PVC plastisol sheets at a pressure of 10-20 psi. The dye penetration in mils after 10, 20, 30, 45, 60, and 120 s at 127° was 1.0, 1.4, 1.4, 1.4, 1.7, and 2.3, resp., at 154° was 2.0, 2. 2580-56-5 and 88402-83-9 which are cas registry numbers of chemicals are mentioned.6, 3.3, 3.6, 4.0, and 8.0, resp., and at 177° was 2.0, 2.0, 2.6, 4.0, 5.3, and 7.0, resp. In comparison, samples of Mylar polyester film transfer printed with the same image compn. showed virtually no coloration of the film, other than a faint coloration of the surface which was readily removed by wiping with a dry cloth. .