Modified starch/polyacrylamide textile slurry composition and preparation thereof

Abstract

The invention discloses a modified starch / polyacrylamide textile size composition and a preparation method thereof. The invention is characterized in that 95.0-99.9 parts of the modified starch and 0.1-5.0 parts of the polyacrylamide are physically mixed under the state of dry powder, after 625-1667 parts of de-ionized water are added into the mixture and evenly stirred, 0-5 parts of sizing grease, 0-5 parts of hygroscopic agent and 0-20 parts of other sizing materials are added and the mixture is heated to boil for 1-1.5h and lasts 5-10min for heat preservation, and the modified starch / polyacrylamide textile size composition is prepared, with the solid content of the serosity standing at 6%-16%. The sizing materials have obviously improved the mechanical property, can replace the environment-polluting PVA sizing material in large quantity and reduce the cost of the sizing materials; after the PAM and the modified starch are mixed together, the compatibility is good and the viscosity stability is excellent, the film forming of the sizing materials is intact, the surface of the sizing film is level and smooth, and the adhesion property and the sizing property of the serosity to the yarns are improved.

Description

technical field [0001] The invention relates to a modified starch / polyacrylamide (PAM) textile size composition and a preparation method thereof, belonging to the field of textile size. Background technique [0002] Before fabric weaving, the warp yarn must be sized so that the warp yarn can reduce mechanical friction, stretching and bending during weaving to ensure the weaving quality; before fabric printing and dyeing, the size on the fabric is removed through the desizing process to ensure the printing and dyeing quality. Among the textile sizing materials, starch-based sizing materials are used in the largest amount. As a renewable polymer material, starch has a wide range of sources, is relatively low in price, and can be completely biodegraded. However, due to the semi-rigidity of the glucose residues on the starch macromolecular chains and the strong hydrogen bonds between the starch molecules, the starch size film is hard and brittle, and it is easy to pulverize und...

AI Technical Summary

Problems solved by technology

The addition of PVA greatly changes the hardness and brittleness of the starch size film. The comprehensive performance of the sizing can meet the needs of warp weaving. A large amount of PVA can achieve better results, but too much PVA will cause the gray fabric to contain a large amount of synthetic size. Cause desizing waste liquid to pollute the environment

Images