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Department of colored fiber spinning acrylonitrile

Degrees, the liquid dye is usually processed using organic pigments, the physical and chemical properties will meet the requirements of spinning colored pigments added to the spinning liquid, well-mixed and filtered before or quantitatively in the spinneret Note colored liquid, the static mixture spun into colored fibers. Dainichiseika the PAB colorant applications. Coloring agent dissolved: the coloring agent dissolved in the solvent of polyacrylonitrile spinning solution, the concentration of about 15%, it can be dissolved at room temperature, but in 50-70% of dissolved rapidly. First, No. 3 (1998) Shanghai dye solvent to release the containers with agitator, as anti-caking agent to slowly add coloring, and stir and add side. To continue after a certain amount of mixing 5min, if the coloring agent should be heated before adding all the heat. Dope colored: colored liquid spinning preparation method used is to have prepared a good coloring solution (usually dark concentration of 5%, light 0.8% or so) to join in the spinning solution, and mixing. Colored liquid to be poured after all still stirring 5min. Made of colored liquid spinning, the filter deaeration generally dry or wet with spinning equipment can be spun out of bright colored fibers. 3.2 colored dye staining with cationic dyes as coloring agents cheap dope, simple process, the process is more mature C. olnte]] e process, using Renmtral cationic dyes. Rew. a. . ~ Al cationic dye solution in the spinning of PAN coloring principle and used the same mechanism of cationic dyes. With the fiber in the acid copolymer salt groups for reaction. Recipe for dry-spinning process is: 5% Re-mastral DNF dye solution were 2-8,mbt scarpe prezzi, a 28% acrylonitrile-methyl methacrylate allyl sulfonate (94:5:1) in DMF solution 100. Colored with this recipe spinning solution by spinning, stretching, washing can be. When the wet spinning process. Dye added to the spinning solution, in the spinning coagulation, the obtained colloidal single fiber still contains large amounts of organic Los fluid. With the non-solvent water exchange, while the tensile fiber Cambodia, there are inevitably transferred to the dye solution, spinning bath together and pull Chung bath, but can be recycled. Rema. sttal dyes can also be used in combination with carbon black. The price of health by the dark blue, olive and brown. PP prolyl 4 4.1 staining characteristics of the wet tow dyeing polyacrylonitrile first emitted from the textile,p90x calendar, from the cold and dry traction to the loose fiber structure at each stage, showing high porosity and fiber characteristics of large surface area. Cambodian silk dyeing can be used as the wet conditions, the dyeing and dyeing equipment,discount mbt shoes, point the location and placement of air ducts, as the spinning process the case may be, and should not contain the fiber spinning bath after washing harmful residues only after the concentration dyeing, staining method can be impregnated or padding methods. When asked by the dyeing effect, temperature, dye concentration, about 2 (Isec can make the dye uptake reached equilibrium, 65 �� absorbing dye 7o% to be 3see, and 25 �� need 6see, it is stained dark with higher temperature favorable. In the same dyeing conditions, the higher the concentration of dye bath dye absorption of the dye wet tow more. Table 3 Dye name value name value of the cationic dye Brilliant Yellow Red 4 IO ~ FFtIH ion Cationic Cationic Pink B1.5 yellow x a 2RL2. 5 Cationic Yellow 7C,. LL1.5 ion Cationic Blue X-GRL2.5 golden red x-GRL3 cationic yellow X x-GL2.5 a 3GL3 Cationic Turquoise Blue X-GB34.2 cationic dye staining characteristics for wet tow cationic dyes, in addition to considering its color fastness on the stability of spinning bath bath residues, dyes commodity form, solubility, well outside the lift force. still need to consider the use of ionic dyes compatible with the absolute value of f value and the Km values . which is the absolute f value of the PAN fiber can absorb a percentage of the maximum dye; Km value is to reflect the cationic dyes polyacrylonitrile fiber affinity for dye-specific indicators, the different km values of the cationic dye staining will bring is not the same bath uniform staining results. common values of ion-dye Km in Table 3. 4.3 Cambodian silk dyeing equipment wet just spinning bath dyeing equipment, after the coagulation bath and water bath. increase the padding or dipping equipment can be, and then by washing, stretching, relaxation and drying equipment. 4.4 padding dyeing liquid formulations using ion dye Xe / L acetic acid l sodium acetate and a few 1-1.5 grumble 2ml methanol urea 5-15g for a few sodium chlorate 0 . '2 g / L glycerol 5-50g / L softener 510g / L 0 of a cationic dye slowly. '2 g / L lead agent 2 a, ~ g / L thickener 05g of several conditions: when asked 20-3 %,supra for sale, temperature 45-5d ��,ecco shoes outlet, liquid rate of 350% with tows, ventilate 12s, washed 50-55 ��.
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