Influences of Reactive Capping Rate of Cationic Hydrophilic Polyurethane Capped with Coupling Agent on its Color Fixing Properties

Abstract:

A sort of special cationic hydrophilic polyurethane with moderate chemical reactivity is prepared as anti-crocking agent of fabric dyed with reactive dyes. Influences of chemical reactivity and processing parameters such as quaterization and end-group capping conditions of auxiliaries on its application properties are studied. The results imply that moderate reactive capping rate of cationic hydrophilic polyurethane (about 13%), quaterization conditions of 55-60°C ×30-40min and end-group capping conditions of 50°C×40min are optimum. The deep color fabric treated with our auxiliary takes on a higher wet rubbing fastness than the untreated one by 1-1.5 grade and the hydrophility and soft handle of the fabric are better than the fabric treated with traditional color fixing agent.

• Periodical: Advanced Materials Research (Volumes 781-784)
• Pages: 2690-2694
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.781-784.2690
• Online since: September 2013
• Authors: Nan Ping Xie*, Ming Li, Jing Zhang, Xin Ping Li, Heng Quan
• Keywords: Cationic, Color Fixing, Polyurethane (PU), Prepare, Property

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