Durable flame-retardant non-ironing finishing liquid and finishing method

The invention discloses a durable flame-retardant non-ironing finishing liquid and a finishing method, and belongs to the technical field of functional finishing of cotton fabrics. According to the durable flame-retardant non-ironing finishing liquid and the finishing method, dicyandiamide, a penetrating agent, a softening agent, a polyethylene raw material and a polybasic phosphate group mixed finishing liquid are dehydrated under the action of a catalyst to form a phosphoric anhydride bond, the phosphoric anhydride bond reacts with hydroxyl on cellulose, and the non-ironing and flame-retardant properties of a fabric are improved. 本发明公开了一种耐久阻燃免烫整理液及整理方法，属于棉织物功能性整理技术领域。一种耐久阻燃免烫整理液及整理方法，包括双氰胺、渗透剂、柔软剂聚乙烯原料与多元磷酸基混合整理液，在催化剂的作用下脱水形成磷酸酐键，磷酸酐键再与纤维素上的羟基反应，提高织物的免烫与阻燃性能。