Continuous weftless cloth and preparation method thereof

Abstract

The invention provides continuous weftless cloth which comprises a fabric layer and adhesive film layers, wherein the fabric layer is formed by weaving reinforcing fibers and hot melt fibers through aweaving process, and the adhesive film layers are located on the two sides of the fabric layer. According to the preparation method, orderly arrangement of the non-woven fabric reinforced fibers canbe achieved, accurate control over the content of the adhesive and effective infiltration of the adhesive in the reinforced fibers can be achieved, fiber bundles of the non-woven fabric prepared through the preparation method are evenly combed and spread, no gap or fiber overlapping phenomenon exists between the reinforced fibers, and the product property is stable.

Description

technical field [0001] The invention belongs to the technical field of weft-free fabric production, and in particular relates to a continuous weft-free fabric and a preparation method thereof. Background technique [0002] At present, the production methods of non-woven fabrics mainly include winding method and continuous method. The winding method is to spirally wind the fiber bundle on the rotating pre-paid film roller through the yarn-carrying device after dipping, and then cut and flatten the film along the axial direction of the roller after drying and shaping to obtain a unidirectional non-weft fabric. ; and the preparation of the orthogonal cloth is by rotating the above-mentioned non-weft cloth on the roller by 90 degrees, wrapping the dipped fiber bundle on the roller in the same way, and performing orthogonal compounding with the first layer of rotating non-weft cloth , to get two layers of orthogonal composite non-weft fabric. The preparation method has low effi...

AI Technical Summary

Problems solved by technology

This preparation method has low efficiency, it is difficult to realize continuous production, the consistency of product quality is relatively poor, there are no weft cloth gaps and the phenomenon of overlapping threads is serious, the bulletproof level of the bulletproof material produced by it does not meet the requirements, and the product stability is not high

[0003] The continuous method is a common method for industrial production of unidirectional non-weft fabrics. Continuous non-weft fabrics are produced by creels, guide rollers, comb-shaped wire layers, dipping tanks, rubber rollers, drying boxes, and crimping devices. It is prepared by arranging machine composed of two components. The continuous preparation process has the disadvantages of uneven and insufficient combing of fiber bundles, and the traces of fiber bundles can still be clearly seen after combing.

For example, the patent CN 102234934A discloses a composite coil without weft fabric. The weft-free fabric in the composite coil without weft is composed of unidirectional reinforcing fibers and carriers. Although this scheme can realize the continuous production of 0-degree non-weft fabric, However, there is no arrangement constraint between the reinforced fibers without weft cloth, and it is also prone to voids and overlapping filaments

[0004] In addition, the entire preparation process of continuous orthogonal fabrics in the prior art is complicated and inconvenient, and the introduction of non-weft fabrics in the 90-degree direction also has the disadvantage of uneven carding of fiber bundles

[0005] With the continuous development of science and technology, the demand for non-woven fabrics in bulletproof, stab-proof, explosion-proof and other fields is increasing day by day, and the current preparation methods of non-woven fabrics can no longer meet the performance requirements of products. Therefore, the current market urgently needs to develop a new non-woven fabric. Weft fabric continuous production and preparation process to improve the product stability of unidirectional, orthogonal or multi-directional composite non-woven fabrics

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