PROCESSING AGENT FOR POLYESTER FIBER STRUCTURE AND PRODUCTION METHOD FOR POLYESTER FIBER STRUCTURE USING SAME

摘要

The present invention provides an end-capping processing agent of a polyester fiber structure that can exhaust an end-capping agent effectively in a product to be treated, as well as a production method for a polyester fiber structure that is excellent in terms of hydrolysis resistance, using the end-capping processing agent. The present invention is characterized by the processing end blockade by the end-capping processing agent in which a carbodiimide end-capping agent and a carrier containing alkylphthalimide and benzoic ester as essential components are emulsified or dispersed in water or solvent through the use of a surfactant.