Reference

Triazine dye fixing agents

Triazine dye fixing agents. Stead, Cecil Vivian; Evans, Geoffrey Edward; Shore, John (Imperial Chemical Industries PLC, UK). Brit. UK Pat. Appl. GB 2119367 A1 16 Nov 1983, 7 pp. (English). (United Kingdom). CODEN: BAXXDU. 41602-21-5 and 89130-60-9 are cas registry numbers. These chemicals are also mentioned in this article. CLASS: IC: C07D251-40; D06P005-22. APPLICATION: GB 83-1004 14 Jan 1983. PRIORITY: GB 82-12898 5 May 1982. DOCUMENT TYPE: Patent CA Section: 40 (Textiles) Compds. contg. two aminohalo-s-triazine moieties linked by a diamine residue and contg. quaternary ammonium groups are fixing agents for anionic dyes, e.g. reactive, in exhaust dyeing of cellulose substrates. Thus, reaction of (4-aminophenyl)trimethylammonium chloride hydrochloride [6148-14-7] with cyanuric chloride [108-77-0] in aq. acetone at pH 6-7 and <10° followed by treatment with p-phenylenediamine [106-50-3] at pH 6.0-6.5 and heating at 30-35° gave white cryst. I [89130-61-0]. Cotton fabric which had been treated at 60° with aq. I in the presence of Na2CO3 was dyed at 40° in an aq. soln. of C.I. Reactive Red 2, treated with Na2CO3 at 40°, rinsed, washed in boiling water, rinsed and dried. The degree of dye exhaustion on the fabric was higher than that achieved with untreated control samples dyed in the presence or absence of NaCl, and much less dye was removed during the boiling water treatment after dyeing than in the case of the control dyeings. .

Monoazo reactive dyes

Monoazo reactive dyes. Byczynska, Wiktoria; Korzecki, Zygmunt; Granosik, Jerzy; Zimnicki, Jan; Maciejewski, Antoni; Matuszewska, Apolonia (Zaklady Przemyslu Barwnikow "Organika-Boruta", Pol.). Pol. PL 120972 B2 30 Jul 1983, 4 pp. (Polish). (Poland). CODEN: POXXA7. 17752-68-0 and 43035-77-4 are cas registry numbers. These chemicals are also mentioned in this article. CLASS: IC: C09B062-00. APPLICATION: PL 80-224679 31 May 1980. DOCUMENT TYPE: Patent CA Section: 41 (Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers) The title dyes I ( R = H or alkyl; R1 = residue of a water-sol., optionally metalized, monoazo dye) are prepd. by condensing cyanuric chloride (II) [108-77-0] with 1-amino-2,5-benzenedisulfonic acid (III) [98-44-2] in an acid medium at 5-10° in the presence of a wetting agent, and condensing the resulting dichlorotriazinyl-substituted III with RR1NH. The presence of aminobenzenedisulfonic acid groups in I improves their soly. and reactivity toward fibers, and increases the intensity and brightness of their color. Thus, 25.3 parts III was dissolved in 150 parts water contg. 9.0 parts Na2CO3 and the resulting soln. was added dropwise to a suspension of 20.3 parts II in 150 parts water contg. ice and 0.5 part wetting agent SBO. The temp. during the condensation was maintained at 8-10° and the pH at 4-5 by addn. of Na2CO3. The 1-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-2,5-benzenedisulfonic acid sodium salt [17752-68-0] was filtered and treated with 43.5 parts 4-[(5-amino-2-sulfophenyl)azo]-3-carboxy-1-(4-sulfophenyl)-5-pyrazol one [63400-64-6] in the form of a wet paste of its sodium salt, and heated to 35-45° with simultaneous addn. of Na2CO3. After 3-4 h, about 70 parts of a yellow dye [89004-40-0] was formed, esp. suitable for printing. .