When polyester / cotton fabric printed with dark patterns, blending the two dyes printing required, the process is commonly used dyes, reactive dyes with paste printing. When printing, the disperse dyes, reactive dyes, alkaline agents, additives and raw paste into a paste prepared calico, printed on fabric, first by making dyeing polyester with disperse dyes melt after drying, and then steamed to dye On the cotton fiber fixing. The main issues to be aware of two mutually staining dyes. PEG molecular weight and the amount of printed fabrics K / S value of Cellulose fibers under high temperature conditions, not only does not occur between the macromolecular chains of the molecular diffusion of dye into the fiber available for transient pores inside, and less moisture in the fibers. It was found that polyethylene glycol ether bond many macromolecules, which can absorb large amounts of water molecules around, absorbent cellulose fibers may be used as humectant. Padding polyethylene glycol solution to a cellulose fiber, polyester cloth at high temperature processors, water molecules will not easily evaporate polyester cloth manufacturers, but the fibers forming the internal crystal structure of the frame, the presence of a large number of pores of the fiber , which happens to provide the conditions for entry disperse. Using this principle, select a different molecular weight and the amount of polyethylene glycol (PEG) solution for pre-modified cotton fabric (DS = 0.097) be printed pretreatment, and then choose Disperse Red E-4B transfer paper, by 1.4 be printed, to compare the quality and concentration of polyethylene glycol molecules and the impact on K / S value, modified printed fabric K / S values ??first increased and then decreased with increasing the amount of polyethylene glycol was, and polyethylene molecular weight diol, the higher the printing fabrics pretreated K / S values. Since only the presence of polyethylene glycol molecules wholesale hydroxy polyester cloth ends, the degree of polymerization, the lower the hydroxyl content, and the absorbent can be far stronger than the hydroxy ether bond, and therefore the low molecular weight polyethylene glycol molecules absorbing capacity stronger and more absorbent macromolecules around, puffing effect is remarkable. Furthermore, increasing the amount and molecular weight of the polyethylene glycol, the solution viscosity increased, decreased mobility, when padding pretreatment agent, polyethylene glycol molecules is difficult to penetrate inside the fiber. After drying, due to lower polyethylene glycol content in the fibers, the fibers are less water molecules, thus impeding the diffusion of dyes into the fibers. Molecular weight polyethylene glycol are used in the following test 200. Calico, after the official enriching polyester cloth, polyester cloth provided by the manufacturer after the official enriching. Changyi City, Shandong Province, the official Fumin Textiles Limited (www.fumintex.com) in a variety of printing and dyeing bed sheets, quilt fabric printing and dyeing, printing and dyeing cloth table cloth, printing and dyeing industry has high visibility, integrity management, quality of service both are welcome to inquire or consult our "Business League call" it!