Processing method for improving washability of lyocell standard fiber fabric

Abstract

The invention relates to a processing method for improving the washability of a lyocell standard fiber fabric. The technological process comprises the following steps of cloth turning for end stitching, singeing treatment, enzyme stacking desizing, washing, alkali-oxygen cold stacking, washing, low-alkali mercerizing, dyeing or printing, ironing-free resin finishing, calendering, pre-shrinking andfinished product rolling; by controlling the whole processing technology and adding the steps of low-alkali mercerizing and ironing-free resin finishing, the water resistance of the lyocell standardfabric is improved. According to the processing method, the defects are overcome that existing lyocell standard fiber fabrics in the prior art are low in washability, the smoothness of fabric surfacesis poor after the fabrics are normally washed by machines several times, fluff is likely to be generated, and the hand feeling is hard. According to the processing method, the washability of the lyocell standard fiber fabric is improved, correspondingly the lyocell standard fiber fabric can be normally washed by a machine, the washing requirement of the lyocell standard fiber fabric is lowered, the high smoothness of the fabric surface of the lyocell standard fiber fabric can still be maintained after the lyocell standard fiber fabric is washed by the machine several times, and the lyocell standard fiber fabric has good luster and a great hand feeling.

Description

technical field [0001] The invention relates to the technical field of textile printing and dyeing processing, in particular to a processing method for improving the washability of standard lyocell fiber fabrics. Background technique [0002] "Lyocell" fiber is a brand-new textile and clothing fabric, which emerged in Europe and the United States in the mid-to-late 1990s. Lyocell fiber has many excellent properties of both natural fiber and synthetic fiber. It not only has the characteristics of comfort, good hand feeling and easy dyeing of natural fiber cotton, but also has the advantages of environmental protection that traditional viscose fiber does not have. Clothes made of this fiber not only have natural luster, smooth feel, high strength, and basically no shrinkage, but also have good moisture permeability and air permeability, and the fabric blended with wool has a good effect. Lyocell is a green fiber, its raw material is inexhaustible cellulose in nature, "lyocell...

AI Technical Summary

Problems solved by technology

[0003] The demand for lyocell standard fiber in our country is on the rise every year, but lyocell standard fiber also has some disadvantages: the fiber does not contain cross-linking agent, has the property of easy fibrillation, once the fabric is soaked and swells If it rubs against metal or itself, microfibril splitting will occur, and fluff will appear on the cloth surface, which is difficult to repair. Therefore, Lyocell standard fiber fabrics have high requirements for washing methods

The current traditional printing and dyeing processing methods cannot solve the washability of Lyocell standard fiber fabrics. After several normal machine washes, the surface finish of the fabric is poor, and it is easy to fluff and hard to the touch.

[0004] Chinese patent application CN104233598A discloses a 38% lyocell fiber 38% cotton 14% spun silk 10% silk single-sided intarsia cloth and its preparation method, and Chinese patent CN102926236B discloses a blend of lyocell fiber, cotton and spun silk In the dyeing and finishing process of fabric fabrics, the above-mentioned inventions all use lyocell fibers mixed with other fibers to process fabrics, and the proportion of lyocell fibers is not high, but due to the characteristics of lyocell fibers that are easy to fibrillate, fabrics There is still the problem of washability

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