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Less salt-free dyeing of urea

Material suitable affinity. By swelling and modified fibers. Hydrogen bonds between cellulose molecules together are removed,p90x workout schedule, more reactive hydroxyl groups are, on the introduction of cellulose ion groups. Improved by controlling the dyeing rate and dye uptake on salt-free dyeing. The performance of different reactive dyes shown in Table 2 Comparison of 30 No. 4 April 2008 55 Table 2 million Garden reactive dyeing performance comparison \rate of 95%. Dyes in wastewater by 20% to 5% (2) No salt staining compared with the traditional salt stain. Fabrics dyed with the dyes dry and wet rubbing fastness basically the same. Wet rubbing fastness of individual species modified to improve 0.5: Colour fastness to washing can be up to N4 ~ 5 level (3) multi-activity based ion on modified cellulose fiber dyeing without salt is a host of cleaner production technologies staining by: abroad in the steamer is equipped with a humidity control system, improving quality of printing solid colors. And the significant reduction of urea in the printing paste. Urea to no urea without the use of printing it? Qing Li: printed fabric steaming,tory burch flats, the fabric need to absorb the water vapor in the dye into full color. However, the fabric itself dry after printing a lower moisture content. Particularly strong fiber alone absorb moisture in the fabric surface condensation of steam generated by water. Can not meet the dissolved dyes on these fibers on the moisture requirements. In addition, when the steaming dye additives on the dissolution of the fabric and some chemical substances produced by thermal decomposition of the fabric and also will lead to local overheating around the steam, the emergence of these situations will severely affect the quality of printed fabrics steaming. The traditional solution is added in the printing paste in a large number of dehumidifying agents (urea, glycerol) or in the fabric before steaming to wet the fabric surface. However,ugg boots, due to the addition of hygroscopic agent such as urea increased production costs on the one hand, on the other hand can cause serious pollution problems (increased emissions of nitrogen). Therefore,christian louboutin pas cher, countries in the world are actively taking measures to reduce the dosage of urea and other moisture to reduce environmental pollution. In addition. Conventional fabric surface to wet the amount of control often due to improper or wet to wet the fabric caused by failure to unstable quality steaming. Repeat between batches poor. In particular, too much water also will cause dye \So. Precise control of printed fabric into the steamer when the moisture content. After steaming into the atmosphere moisture content. Is to reduce the amount of urea or urea process without the key conditions (1) 100% cotton fabric printed with the following prescription. And urea 100g/kg @ _ side comparison. Can reduce the amount of up to 80% urea. Urea and MatexilFN-T (DCD) of the total nitrogen reduction of about 65%. Prescription (copies): alginate solution, 500; MatexilPA-L Liquid 30: MatexilWA-KBN20: MatexilFN-T10; urea 20: Sodium 25: add water to 1,000 low-urea combination of prescription and dicyandiamide. Of mercerized cotton cloth is in line with technical requirements of (2) high volume of prescriptions is the urea standard solution of viscose textile printing: printing paste usually at least urea 200g, kg, and in most cases, the fabric first with 100 ~ 200g , IJ rolled prepreg of urea solution. For example: viscose fabric printing is one of the ordinary line of singeing a relaxation of a desizing / scouring of a dry and a harsh one for a stamp of dry cleaning (with a high urea) in a dry and a humidity of a steam of a wash A dry. In all stages of steaming before drying and conditioning steps. Of viscose fabric printing is essential to the success of humidity usually makes viscose fabric to achieve the level of natural moisture regain (12% to 15% moisture content). (3) urea-free printing: printing (without urea) to impose a control humidity drying produced a 30% moisture content (WEKO to the wet system) for a clean one steam one dry. \For example. With the initial 30% of the water. Without urea Turquoise Blue P-GR rayon printed fabric, through the negative spray, get 96% fixation rate. Without adding water, you need to add urea. Moderator: The two-phase printing rapid aging process is most characteristic of urea-free discussion of this issue tell us printing without salt staining. Less urea and no urea,ugg boots günstig, printing technology is feasible, we must further practice, and promotion. The next question is as follows: (1) steam box into the cloth and the cloth (2) \You can choose the topic. Readers are welcome to participate in \ More articles related to topics：

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