A sizing method suitable for textile size of polyester fabric

Abstract

The invention relates to a sizing method of textile slurry for dacron fabrics, which comprises the following steps: pouring slurry into a slurry trough, and heating the slurry in the slurry trough to 53 DEG C; immersing the fabric into the slurry in the slurry trough for 10 minutes while winding the fabric on a frame to tighten the fabric and rolling the fabric at uniform speed so that the slurry is sufficiently and uniformly filled into the fabric, wherein the pressure of the squeezing roller is 12KN; taking out the fabric, putting the fabric in a drying oven, and drying the fabric; immersing the dried fabric into the slurry again for 5 minutes, and rolling the fabric at uniform speed, wherein the pressure of the squeezing roller is 14KN; and taking out the fabric, putting the fabric in a drying oven, and drying the fabric to finish the sizing technique. The method completes the fabric sizing in a twice sizing mode, and designs the technological parameters (mainly temperature of the slurry trough, immersion time for two sizing processes, and pressure of the squeezing roller) according to the specific slurry. The sizing technique is especially suitable for sizing dacron fabrics, and has favorable sizing effect.

Description

technical field [0001] The invention relates to a sizing method suitable for weaving size of polyester fabric. Background technique [0002] Warp sizing is a key link in weaving engineering. The purpose of sizing is to improve the wear resistance of the yarn, reduce hairiness, increase the strength of the yarn appropriately, and reduce the elongation, so as to withstand the mechanical force of the warp yarn during the weaving process. Improve yarn weavability. [0003] At present, the sizing materials for warp yarn sizing mainly include three major sizing materials: starch, polyvinyl alcohol (PVA) and polyacrylic acid. Starch is a natural polysaccharide polymer. The size has good film-forming properties, strong affinity with natural fibers, and easy desizing; however, starch size is not strong enough in sizing, not wear-resistant, and has insufficient affinity with polyester fibers. Polyvinyl alcohol size film has high strength, good flexibility, and good slurry fluidity, ...

AI Technical Summary

Problems solved by technology

Starch is a natural polysaccharide polymer with good film-forming properties, strong affinity with natural fibers, and easy desizing; however, starch sizing is not strong enough, not wear-resistant, and has insufficient affinity with polyester fibers

Polyvinyl alcohol size film has high strength, good flexibility, and good slurry fluidity, but polyvinyl alcohol is difficult to desizing and causes great environmental pollution

Polyacrylic acid size is a general term for homopolymers, copolymers and blends of acrylic monomers. It has low viscosity, good fluidity, good adhesion to synthetic fibers, and can be easily mixed with starch and PVA size. Good mixing, suitable for warp sizing of various fibers, but the high price of polyacrylic acid sizing will push up the production cost of printing and dyeing enterprises

[0004] The design of the sizing process has a great influence on the sizing effect. At present, the use of PVA-free sizing generally adopts the one-time sizing method. Practice shows that the sizing effect is average and the amount of size used is large.