Abstract:
Method for treating fibrous cellulosic materials using an aqueous cationic treating solution containing a cyclic polyhydroxy compound and choline chloride, by which dye uptake of the material, and the environmental effects of the subsequent dyeing process are improved.
Abstract:
Amino and/or alkoxy triazines with at least one C1-C10alkyl group which has a vinyl sulphonyl group or a radical promoting the formation of a vinyl sulphonyl group and is also possibly substituted, their use as fixing auxiliaries in the colouring of organic substrates with hydroxy groups or nitrogen atoms by means of anionic colorants and as cross-linking agents for regenerated cellulose or cellulose-containing materials.
Abstract:
Azo anthrapyridone dye of general formula (III) wherein A, R 1 , R 2 , B, M and n are as described in the specification, are excellent magenta dyes for dyeing and printing of paper, other cellulose containing materials and textiles materials and, in particular, for the preparation of recording fluids for ink jet printing and for writing utensils.
Abstract:
This invention relates to lyocell fibres made flame-resistant by incorporating flame-resistant pigments and dyed with dyestuffs giving good light and washing fastness.
Abstract:
This invention relates to lyocell fibres made flame-resistant by incorporating flame-resistant pigments and dyed with dyestuffs giving good light and washing fastness.
Abstract:
Acid dyes, a process for their preparation and their use for dyeing organic substrates of the general formula (I) wherein the substituents have the meaning as indicated in the claims.
Abstract:
Cellulosic fibres or fabrics are dyed using pre-metallized acid dye by pretreating the fabric with a cationic agent having a plurality of cationic centres and optionally aftertreating the dyed material with a cationic polymer. The cationic polymer is desirably a polyquaternary amine material especially a poly(DADMAC) or polyvinylpyridine. Material dyed by the method has a "washed out" appearance similar to fabrics dyed using the "Jarofast" process, but the availability of a wide range of pre-metallized dyes gives a wider colour range, and the method enables a wider range of substrates to be dyed successfully, including lyocell fibre materials e.g. those sold under Courtauld's trademark "Tencel" and blend/union materials with polyamides, easier processing and superior wash and light fastness.