Superfine fiber fabric and manufacturing process thereof

Abstract

Superfine fiber fabric comprises a base portion and a surface portion. The base portion is composed of fixed island type sea-island filament or / and common filament; the surface portion is composed ofshort fibers. The fabric has a non-woven structure in which the base portion and the surface portion are mutually complexed. The invention relates to a manufacturing process of the superfine fiber fabric, wherein the fixed island-type sea-island filament or / and an ordinary filament of the base portion thereof are knitted by a weft knitting, warp knitting or weaving process, and then a napping layer is formed on the surface of the superfine fiber fabric by a napping treatment; the napping layer is covered by the short fiber; the non-woven structure is formed by the non-woven complex technologybetween the short fibers and the napping layer on the surface of the matrix; after immersion, drying, shedding, dyeing and post-treatment, the superfine fiber fabric is obtained. The superfine fiber fabric fills in the blank of needle punched non-woven fabrics with thickness less than 0.5 mm, and has very good two-color effect and high-grade beauty.

Description

technical field [0001] The invention relates to a superfine fiber fabric and a manufacturing process thereof, belonging to the technical field of high-grade textile fabrics. Background technique [0002] Microfiber is the abbreviation of superfine fiber PU synthetic leather. Sea-island superfine fiber is a type of superfine fiber, which is divided into two categories: sea-island filament and sea-island staple fiber (including fixed island type and indeterminate island type). Sea-island filaments generally produce suede fabrics through weaving and knitting, which are used in the production of clothing and apparel; sea-island staple fibers usually produce thick imitation leather fabrics through needle-punched non-woven, mainly used for shoemaking, sofas, and automotive interiors , clothing, etc. All microfiber fabrics are generally aimed at achieving high imitation leather. The fixed-island type super-fabric adopts alkali reduction fiber opening, which is safer and more envir...

AI Technical Summary

Problems solved by technology

[0003] Ordinary ultra-fine fiber needle-punched non-woven fabrics are usually made of ultra-fine staple fibers through the processes of unpacking, mixing, carding, laying, and acupuncture. The equipment investment is expensive, the production process conditions are high, and the energy consumption is large. The output is low, and the average thickness and weight of the fabric are difficult to control, which brings difficulties to the subsequent resin impregnation and dyeing deep processing. The thickness specifications of the produced fabrics are relatively limited. Generally, only 0.5-2.0mm medium thickness and no elastic specifications can be produced. Gray cloth, gray cloth with a thickness of less than 0.5mm and elastic specifications cannot be directly produced

In order to pursue gray fabrics with a specification below 0.5mm, some manufacturers adopt the process of first producing thickness above 1.2mm, and then adopting the process of cutting and slicing the fabric transversely. Significant decline, affecting subsequent applications

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