摘要:
Process for dyeing mesh fabrics and woven fabrics, made from cellulose fibers and mixed yarns thereof, in rope form on a winch beck or jet dyeing apparatus by the exhaustion method at a short liquor ratio in the presence of at least one auxiliary, using an aqueous liquor containing dyes or dye precursors which are suitable for the type of fiber and optionally fixing chemicals, wherein dyeing is carried out at a liquor ratio of 1:3 to 1:8 (on the weight of the dry goods) and 2-8 g/l of an anionic or non-ionic, aliphatic softener are used, on its own or as a mixture, as the auxiliary.
摘要:
Process for the uniform application of treatment liquors to textile material webs with the aid of a measurement of the total moisture content applied, wherein, in the course of the material run, immediately behind a machine for applying the liquor to the continuously fed material, several measuring position are arranged transversely to the transport direction of the material and measurements of the total moisture are made by means of a contactless method, the measuring pulses determined in this manner are transmitted to the control elements of the preceding liquor application unit and there the amount of liquor pick-up from several separately controllable sections, which are distributed across the width of liquor application unit, is controlled in agreement with the measured values of the total mixture.
摘要:
In the textile industry there is a constant need for processes where the textile material to be treated can be treated in a simple form, for example in rope form instead of in the open-width state, and continuously. According to the invention, this need is met when the textile material is introduced via pressure seal elements into a specially constructed jet dyeing machine, is impregnated there with treating liquor during entry or immediately thereafter and is conveyed further in the machine by means of at least one jet operated by means of a gas stream, the treating agent applied, preferably dye, having advantageously been subjected to fixation in the course of the presence in the gas atmosphere. The necessary physical conditions (pressure, temperature) for this are created by the driving gas. Moreover, in the course of the passage of the textile material it is possible to carry out a further, including a completely different, impregnation.
摘要:
Because the high dyeing temperatures employed necessitate the use of formaldehyde as customary wool-protecting agent and because of the resulting sealing problems on jet-dyeing machines, an HT dyeing of polyester fibre/wool blends cannot be carried out without polluting the environment. If, however, to achieve this purpose, lower temperatures are employed and the consequently required carriers are added directly to the dyeing liquor, this in turn gives rise to levelness problems and fastness reductions on the wool portion of the textile material.It has now been found according to the invention that by metering the carrier under isothermal conditions into the dyeing after 10-20 minutes via the gas stream driving the textile material it is possible to obtain a homogeneous distribution thereof and its full effectiveness without fastness losses. The dyeing can be completed 10-30 minutes later. All the advantages of jet dyeing are fully retained in this process.
摘要:
Process and apparatus for applying in a continuous and level manner aqueous impregnating liquors to water-wet textile goods to prevent unlevelness of the liquor applied to the goods. This is accomplished by partly or completely exchanging the moisture on the goods by sucking or pressing liquor through the goods and by circulating the liquor to be applied while maintaining its volume and concentration at a constant value. The new technique makes it possible to dispense with the customary intermediate drying stage after the pretreatment.
摘要:
The crease displacement and the achievable dilution factor in the conventional continuous pretreatment or aftertreatment operations of fabric ropes with liquid means in rope washers are not adequate, and consequently the water consumption necessary for satisfactory results is too high. To date the existing problems can only be solved with squeeze rollers which, however, have an adverse effect on the goods.According to the invention the textile rope is now introduced into a treatment store of a liquid-operated jet apparatus, is subjected to the action of the treatment liquor, is then carried along by a steam- or more generally gas-operated jet arrangement and conveyed into an interim store, where dewatering takes place. From the interim store the goods, with satisfactory dilution factor, are then passed to the next isothermal or non-isothermal treatment stage of the same or a very similar structure.
摘要:
In order to achieve lighter patterned effects on a background of a deeper color, aqueous printing pastes containing, additionally to thickeners and other conventional printing assistants, assistants which have dissolving properties for the dyestuffs at elevated temperatures and which do not attack the fibers under thermosol conditions, are applied to textile webs which have been dyed in a finished manner with suitable dyestuffs or have only been impregnated therewith, after which the goods treated in this way are subjected to a steaming process or to a dry heat treatment. In accordance with the process it is possible to effect a uniform lightening, "white discharging" or "colored discharging" of dyeings, particularly dyeings of synthetic fibers with disperse dyestuffs and also dyeings of natural fibers or mixtures thereof with disperse dyestuffs, vat dyestuffs, leuco esters thereof and developing dyestuffs. Dyestuff-dissolving assistants of the type used are anionic, cationic or nonionic compounds of various structures.
摘要:
A process for the pad-dyeing of textile webs, especially tubular knitted fabrics, which consist totally or partially of cellulose fibers, wherein the textile material is padded on a padder with an aqueous liquor of reactive dyestuffs, alkalis for their fixation and wetting agents, said liquor additionally containing polymers or copolymers of acrylic acid amide in aqueous solution, in order to avoid difficulties with regard to an even dye penetration and uniform squeezed edges, and the dyestuffs are fixed according to the cold-dwell dyeing process.
摘要:
In the process for the pad-dyeing or printing of materials consisting of, or containing, polyester or polyamide fibers or filaments, whereat in known manner the said materials are padded or printed with an aqueous liquor or printing paste of disperse dyestuffs, and subsequently the dyestuffs are fixed by means of liquid or gaseous methylene chloride or of both of the said phases of methylene chloride, the improvement that a dyestuff of the formula ##STR1## in which R.sub.1 represents hydrogen, chlorine, bromine or cyano, R.sub.2 represents hydrogen, chlorine or alkyl of 1 to 3 carbon atoms and R.sub.3 stands for alkyl of 1 to 5 carbon atoms, ##STR2## is applied.
摘要:
In the process for the pad-dyeing of printing or materials consisting of, or containing, polyester or polyamide fibers or filaments, in which process the materials are padded or printed in common manner with aqueous baths or printing pastes of disperse dyestuffs, and the dyestuffs are subsequently fixed by the action of liquid or gaseous methylene chloride or both of the said phases of methylene chloride, the improvement that use is made of a dyestuff of the general formula (1) ##STR1## in which R.sub.1 represents --NH.sub.2, --NH--CH.sub.2 --CH.sub.2 --OH,R.sub.2 represents hydrogen, alkyl of from 1 to 3 carbon atoms or --(CH.sub.2).sub.n --OH, in which n stands for an integer of from 1 to 3, or phenyl, R.sub.3 represents hydrogen, --O--alkyl .sub.C.sbsb.1.sub.-C.sbsb.3, ##STR2## R.sub.4 stands for --OH, --NH.sub.2 or --NH--alkyl.sub.C.sbsb.1.sub.-C.sbsb.3, andR.sub.5 represents --OH or --NO.sub.2,or of the general formula (2) ##STR3## in which R'.sub.1 stands for --OH or --NH--(n-- or i--)alkyl.sub.C.sbsb.1.sub.-C.sbsb.4,R'.sub.2 for alkoxy .sub.C.sbsb.1.sub.-C.sbsb.3 phenyl, R.sub.3 is defined as in formula (1) above,R'.sub.4 stands for --OH, --NH.sub.2 or --NH--alkyl.sub.C.sbsb.1.sub.-C.sbsb.3, andR'.sub.5 for --OH or --NO.sub.2.