Production manner and paste agent composition null of paste medicine for water jet loom

摘要

PURPOSE: To obtain a sizing agent for WJL having high cohesive force and low in viscosity and water-absorption by the soap-free emulsion polymerization of a monomer mixture composed of a polymerizable unsaturated acid and a specific ester. ;CONSTITUTION: This sizing agent composition for WJL having excellent water resistance can be produced by polymerizing a monomer mixture composed of 8-30wt.% of a polymerizable unsaturated acid [e.g. (meth)acrylic acid, itaconic acid or maleic acid], 30-70wt.% of a (meth)acrylic acid 1-3C alcohol ester and 20-60wt.% of a (meth)acrylic acid 4-22C alcohol ester in an aqueous solution in the presence of a water-soluble polymerization initiator and a chain transfer agent using a soap-free emulsion polymerization method, neutralizing the obtained aqueous dispersion with an alkaline agent and mixing the resultant neutral aqueous dispersion with a wax emulsion. The solid content of the neutral aqueous dispersion in the mixture is ≥30% of the total solid content. The sizing agent can effectively prevent the breakage of warp in a high-speed weaving process.;COPYRIGHT: (C)1995,JPO