C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
260/155.1
C09B 29/00 (2006.01) C09B 31/00 (2006.01) C09B 33/00 (2006.01) C09B 62/507 (2006.01)
Patent
CA 1051422
NEW WATER-SOLUBLE, YELLOW REACTIVE DYES? PROCESS FOR THEIR PREPARATION AND THEIR UTILIZATION Abstract of the disclosure: Compounds which, in the form of the free acid, correspond to the general formula (1) Image in which A,A', B and B' each represent radicals of the benzene-, naphthalen- or heterocyclic series which may be identical or different, D and D' each represent a bivalent bridge member, which may be identical or different, X stands for a group which is linked to A, A', B and/or B' and corresponds to the formula -SO2-CH2-CH2-Y or -SO2-CH=CH2 in which Y stands for a radical which can be split off by alkaline agents or for a hydroxyl group, m and m1 is zero or the integer 0 to 1, the sum of m + m1 being at least 1, n and n1 each is zero or represent the integer 1, the sum of n + n1 being at least 1, p represents the integer 1 or 2, q represents the integer 1, 2 or 3, with the proviso that if the radical (B-Dn)m-A- represents the group Image A' represents a naphthalene nucleus, which are very well suitable for dyeing and printing of various fibre materials such as, for example, wool, silk, leather, polyamide or poly- urethane fibres, but especially cellulose containing fibre materials such as cotton, regenerated cellulosic fibres and linen. The dyestuffs are preferably employed in accordance with the dyeing and printing processes for reactive dyestuffs which are generally customary in industry and yield on cellulose fibre materials, in the presence of acid binding agents, bright clear, yellow to very brilliant greenish yellow dyeings and prints of high tinctorial strength and a very good color build-up; they are very stable against washing and influence of light. Furthermore they have remarkably good fastnesses to water, sea-water, chlorinated bathing water, chlorine bleaching, fulling, rubbing, ironing, acid, alkalis and solvents. - 1a -
207536
Bauer August
Hoyer Ernst
Meininger Fritz
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