摘要:
The lyotropic, liquid-crystalline, aqueous phase of a reactive dyestuff of the formula ##STR1## wherein M.sym. represents H.sym. or an alkali metal cation (preferably Na.sym., K.sym. or Li.sym.) andR is a fibre-reactive groupingpresent in water at room temperature in a concentration of 10-25%, if appropriate in the presence of concentration-increasing additives and/or buffer substances, is highly suitable for preparing dyebaths and print pastes for application to natural and synthetic substrates, in particular cotton, wool, regenerated cellulose, paper and leather.
摘要:
Stable, concentrated aqueous solutions of, in particular, anionic reactive dyestuffs are obtained in a comparatively simple manner by freeing from salts, preferably by means of membrane separation processes, solutions of these substances just as they are obtained in the course of synthesis, and by replacing, with the aid of ion exchangers, the cations which cause sparing solubility.
摘要:
Ultrafiltered solutions of the dyestuff of the formula ##STR1## (Me=cation) such as is obtained directly on synthesis, are distinguished by an increased tinctorial strength in pad-steam dyeing of cellulose fibres.
摘要:
Liquid water-containing concentrated reactive dye-stuff preparations of monofluorotriazinyl reactive dye-stuffs with a pH value of at least 8, preferably 8.5-10, are stable on storage and display no noticeable hydrolysis, even after prolonged storage.
摘要:
Concentrated aqueous solutions of dyestuffs having water-solubilizing groups which contain cyanamides of the formula ##STR1## wherein R.sub.1 =NHCN, NHCONH.sub.2 or NHCONHCH.sub.3 where n=0 andm=1 or n=1 and m=0,have a long shelf life, in particular also in the case of reactive dyestuffs.
摘要:
A new method of diazotization consists in using as the diazotizing agent in an aqueous, aqueous organic or organic medium the system comprising salt of nitrous acid+acid insoluble in the reaction medium, in particular organic or inorganic cation exchangers having acid groups. The diazonium salt solutions thus prepared are immediately reacted with coupling components to give azo dyestuffs, the insoluble acid and/or its salt being separated off before or after the coupling.
摘要:
A new storage-stable solution of the reactive dyestuff of the formula ##STR1## wherein CuPc=the radical of a Cu phthalocyanine dyestuff,m=1, 2 or 3,n=1, 2 or 3,m+n=3 to 4 andM.sup..sym. =H.sup..sym., an alkali metal cation or an ammonium ion,is provided.The storage-stable solution according to the invention is characterized in that it contains 10-35% by weight of reactive dyestuff (1), 10-30% by weight of solubilizing agent, 0-10% by weight of anionic dispersing agent, 0-7% by weight of inorganic salts, such as Na.sub.2 SO.sub.4, Li.sub.2 SO.sub.4 and the like, and 0.1-3% by weight of buffer (pH 4-7), the remainder to make up to 100% by weight being water.
摘要翻译:其中CuPc = Cu酞菁染料m = 1,2或3,n = 1,2或3,m + n = 3至4的活性染料的新储存稳定溶液 并且提供M(+)= H(+),碱金属阳离子或铵离子。 根据本发明的储存稳定溶液的特征在于其含有10-35重量%的活性染料(1),10-30重量%的增溶剂,0-10重量%的阴离子分散剂,0 -7重量%的无机盐,例如Na 2 SO 4,Li 2 SO 4等,和0.1-3重量%的缓冲液(pH 4-7),余量以100重量%为水。
摘要:
A gasification reactor vessel comprising a combustion chamber in the upper half of the vessel, provided with a product gas outlet at the bottom end of the combustion chamber, at least two burner openings are present in the wall of the combustion chamber, which burner openings are located at the same horizontal level and are positioned diametrical relative to each other and wherein in each burner opening a burner is present, wherein between the wall of the combustion chamber and the wall of vessel an annular space is provided, wherein the wall of the combustion chamber comprises an arrangement of interconnected tubes (vertical arranged or helical coiled), wherein the product gas outlet at the bottom end of the combustion chamber is fluidly connected to a dip-tube, which partly is submerged in a water bath located at the lower end of the reactor vessel, and wherein at the upper end of the dip-tube means are present to add a quenching medium to the, in use, downwardly flowing mixture of hydrogen and carbon monoxide.
摘要:
The invention relates to aqueous reactive 2-component binder combinations for aqueous reactive filler compositions, processes for the preparation of aqueous reactive filler compositions based on aqueous reactive 2-component binder combinations and the use of such filler compositions.
摘要:
Process for dyeing or printing fiber materials containing hydroxyl groups, characterized in that at least one blue-dyeing dyestuff of the formula ##STR1## wherein the substituents have the meaning given in the description, is used together with at least one yellow-dyeing and/or at least one red-dyeing and/or at least one navy blue- or black-dyeing dyestuff.