摘要:
A process for the continuous dyeing of textile materials consisting of or containing wool with reactive dyestuffs according to a steam fixation method, by impregnating the fibrous material at pH values of from 6.5 to 7.5 with an aqueous liquor containing reactive dyestuffs of the methyltaurino-ethyl-sulphone type, and fixing the dyestuff without intermediate drying of the material by treating with saturated or largely saturated steam at temperatures of from 110.degree. to 120.degree. C.
摘要:
The dyeing of wool with reactive dyes in a strongly acid medium (containing sulfuric acid) requires no longer acceptable, long heating-up times (50-60 minutes) in order to obtain level dyeings. It has now been found, according to the invention, that by rapidly heating up the dyebath which contains the dyes of the vinylsulfonyl type and also all the ingredients, except the acid, to the dyeing temperature together with the material to be dyed and then metering in the sulfuric acid under isothermal conditions at the dyeing temperature it is possible to obtain very level and very fast dyeings in a significantly shorter overall dyeing time. Carbonized wool can be dyed without prior neutralization.
摘要:
Process for the continuous dyeing of flat textile structures made of cellulose fibers and their mixtures with synthetic fiber materials by applying onto the web of fibrous material an aqueous solution of at least one reactive dyestuff and a fixation agent mixture of a liquid alkali metal silicate of the formula Me.sub.2.sup.I .multidot.x SiO.sub.2 (x=3-5) (water glass) and an aqueous alkali metal hydroxide solution, placing the material thus treated into a dwelling chamber, exposing the material in a cuttled-up or opened-out condition in said chamber to humid heat, so that the dyestuff is fixed by the dwelling operation, and finally removing the material again continuously from the dwelling chamber.
摘要:
Process for the uniform drying of a travelling textile web impregnated with treating agents by contacting the textile web oscillatorily over its width with the hot air current or heat radiation supplied by the corresponding sources of heat and hitting the web unilaterally or bilaterally. Devices for carrying out this process are described.
摘要:
Process for the continuous dyeing of high-quality polyester fibers, wherein on the textile material, which has been impregnated with a dyeing liquor, the dyestuff applied is fixed by means of a combined treatment with saturated vapor at high pressure and a wet treatment at high temperature.
摘要:
Hitherto there has been no practical pad-dwell process for wool piece goods which could be carried out without using large amounts of textile assistants. In addition, it has been necessary with all these processes to supply energy. Furthermore, large amounts of urea have always been used, which inevitably resulted in a high degree of waste water pollution. It has now been recognized according to the invention that satisfactory results can be obtained in the dyeing of wool piece goods with reactive dyes by effecting the padding operation with the dye solutions within the pH range from 1.5 to 4 and at room temperature and the subsequent dwell operation to obtain dye fixation without supply of heat. To prevent the formation of a frosting effect and to obtain deeper shades it is expediently possible also to add to the padding liquor nitrogen-containing ethoxylation products, in particular ethoxylated fatty amines, and/or alkyl polyglycol ethers.
摘要:
In the dyeing of cellulose knitted fabrics in hose form, according to a two-bath procedure, with azo dyes produced on the fiber by coupling of their formation components, it was hitherto impossible on an industrial scale to forward the developing liquor in a sufficiently rapid manner into the interior of the textile hose, after impregnation of said tubular goods in a winch beck using the exhaust technique. Dyestuff development without intermediate drying was impeded by the insufficient liquor uptake of the flattened textile material that had previously been impregnated on subsequent slop-padding wet-in-wet with the developing liquor.By incorporation of an auxiliaries' combination comprising homo- or copolymers of acrylic acid amide and a wetting agent in said developing liquor, the liquor uptake thereof by the moist fiber material is increased and the penetration rate of this liquor during the coupling is incited in such a manner that textile hoses which exhibit even, well penetrated dyeings are obtained.Dyeing of tubular knitted fabrics, especially in hose form, with azo developing dyes has become safe only in accordance with this invention.
摘要:
Continuous dyeing of cellulose knitted fabrics in hose form, according to a two-bath procedure and without intermediate drying, with azo dyes produced on the fiber by coupling of their formation components could be realized hitherto on an industrial scale in exceptional cases only. For the most part this dyeing method failed generally due to the insufficient liquor uptake of the flattened textile material that had previously been impregnated, on subsequent slop-padding wet-in-wet with the developing liquor.By incorporation of a combination comprising homo- or copolymers of acrylic acid amide and a wetting agent into the impregnation bath and the developing liquor, the liquor uptake thereof by the moist fiber material, both in the course of the impregnation phase and once more in the slop-padding operation for developing the dyes too, is increased and the penetration rate of the liquor during the coupling is improved in such a manner that textile hoses which exhibit even, well penetrated dyeings are obtained.Dyeing of tubular knitted fabrics, especially in hose form, with azo developing dyes has become feasible only in accordance with this invention. The process may be carried out as well in semicontinuous operation.
摘要:
A process for the treatment of textiles in rope form with gaseous and/or liquid treating agents in a jet dyeing unit, wherein the charging of the jet apparatus with the material rope as well as the material transport in the unit is effected by directing a gas current, especially steam, issuing from nozzles under excess pressure onto the fibrous material. To start the process, the gas current and the fluid current may be used alternately or may be combined. The process is particularly suitable for the isothermal dyeing of textiles in rope form with heat-fixable dyestuffs in accordance with the batchwise exhaustion method.
摘要:
Continuous dyeing of textile webs of cellulose fibers and of mixtures thereof with synthetic fibers using reactive dyes, by applying onto the textile material an aqueous solution of at least one reactive dye in conjunction with a mixture of fixation agents of a liquid alkali water glass having a density from 37.degree. to 60.degree. Be and an alkali hydroxide solution having a density from 30.degree. to 45.degree. Be, introducing the treated material into a tank where it is heated and subjected to the action of humid heat of 81.degree. to 95.degree. C. for 5 to 180 seconds, removing it continuously from the tank and then terminating the dyestuff fixation by brief steaming or by a brief immersion into a hot sodium silicate solution.