Telephone:189-0510-0000

Production technology of UD Nonwovens

2021-07-14 10:40:07
times

Production technology of UD Nonwovens
As a product, before continuous production, it is particularly important and necessary for UD nonwovens manufacturers to fully understand the whole production process conditions. At present, there are few aramid nonwovens in the market. The main adhesives are water-soluble resin and solvent resin, and the resin matrix is basically divided into three categories: acrylic, polyurethane and rubber. According to the characteristics of the equipment and the requirements of environmental protection, the resin adhesive needs to be water-soluble. According to some previous experimental data and experience, the resin adhesive suitable for products is polyurethane. Adjust the formula and proportion of polyurethane, so that the unidirectional cloth with excellent performance can be woven with fiber.
The production process of unidirectional cloth is detailed as follows:
Firstly, the aramid fiber Jane yarn is installed on the yarn frame. After the fiber is led out from the yarn frame, it passes through the regularly arranged threading holes, and then passes through the fiber concentration plate according to the law to realize the preliminary positioning of the fiber bundle in the three-dimensional space plane; The fiber bundle enters the area density control device to realize the accurate positioning of the fiber bundle in the width direction; The accurately positioned fiber bundle enters the filament spreading module, so that each bundle of fibers can achieve uniform filament spreading; The evenly spread tow is sent to the gluing device for uniform gluing; The film covering system evenly spreads the film through a group of film release devices, and the flat spread film is well combined with the glued fiber; The unidirectional cloth compounded with the film reaches the drying and shaping module and is heated for drying and shaping; After drying and shaping, the UD cloth is naturally cooled in the air by the cooling module. After reaching the set length, it is automatically cut off, and the UD cloth is rolled by the winding module.

ud无纬布

Among them, the two key factors in the above UD weft free fabric manufacturing process are unwinding tension control and adhesive formula and ratio, which directly determine the performance of the product.
The steps of unwinding tension control and adjustment of yarn frame are as follows:
1) After installing the yarn shaft with fiber on the yarn frame, test the tension of each bundle of fiber with YG302 tension instrument;
2) According to the actual measured fiber bundle tension value, adjust the tension to the appropriate value through tension adjustment;
3) With the consumption of the fiber quantity of the yarn shaft, the diameter will become smaller. When the fiber reaches a certain degree, adjust the tension in time to ensure that the tension remains constant.

tags

近期浏览:

Related products

Relevant news

National service telephone:189-0510-0000

Company address:No. 111, Fenghuang South Road, Yandu District, Yancheng City, Jiangsu Province 

Copyright © Jiangsu Liujia Technology Co., Ltd All rights reserved:苏ICP备16027795号-2 Main production Bulletproof cloth,bulletproof material,UD non weft cloth, 欢迎来电咨询!
article | region | sitemap | RSS | XML

手机站二维码