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Application of Polyurethane in Textile Auxiliary Application

Views: 27     Author: Site Editor     Publish Time: 2024-06-03      Origin: Site


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Polyurethane is a highly versatile polymer that plays a pivotal role in the textile industry through its use in various textile auxiliaries. Its unique properties and adaptability make it an essential component in enhancing the performance, durability, and aesthetic qualities of textiles. Here are the primary applications of polyurethane in textile auxiliaries:

1.Coatings and Finishes:

Polyurethane is widely used in textile coatings and finishes to impart a range of functional properties to fabrics. PU coatings provide excellent water and stain resistance, making fabrics suitable for outdoor and protective clothing. These coatings also enhance the abrasion resistance and durability of textiles, ensuring that the fabrics can withstand harsh conditions while maintaining flexibility and comfort. Additionally, polyurethane finishes can be customized to provide specific tactile properties, such as a soft or silky feel, which enhance the fabric's appeal and usability.

2.Elastomeric Fibers:

Polyurethane is the key material in the production of elastomeric fibers, commonly known as spandex or Lycra. These fibers are celebrated for their exceptional elasticity and strength, which contribute to the stretch and recovery properties of fabrics. Garments incorporating polyurethane elastomeric fibers offer superior comfort, fit, and freedom of movement, making them ideal for activewear, sportswear, and hosiery. The ability of these fibers to retain their shape and provide a snug fit without sagging is a significant advantage.

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3.Softening and Hand Modifiers:

Polyurethane-based softeners and hand modifiers improve the texture and feel of fabrics. These auxiliaries can make textiles softer, smoother, and more pleasant to touch. They are commonly used in finishing processes for garments, upholstery, and home textiles to enhance the user experience and add value to the final product.

4.Dyeing auxiliary

For example, cationic water-dispersed polyurethane can be used as a pre-dyeing agent, which can improve the dyeability of fabrics or non-woven fabrics. In addition, some water-dispersed polyurethanes can react with a variety of fibers and dyes, which can significantly improve the fastness of the dye.

5.Printing adhesive

For example, the domestic development of sodium sulfite as the sealing agent of water heat dissipation reaction type polyurethane PUT-02 can be used in large area paint printing, can improve the adhesion between paint and fabric and the wear resistance of printed fabric.

6.Special printing adhesive

Water-dispersed polyurethane can be used as a special printing adhesive, mainly used in transparent printing and matting printing, for the former should be used with excellent permeability and non-yellows of water-dispersed polyurethane, although they are generally used for polyester thin fabrics, but also can be used in cotton and wool fabrics such as cotton transparent printing prescription.

In conclusion, polyurethane's application in textile auxiliaries is diverse and significant. This versatility makes polyurethane an indispensable material in the modern textile industry, driving innovation and improving the quality of textile products.

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