Views: 57 Author: Site Editor Publish Time: 2022-06-17 Origin: Site
PET spunbond non-woven fabric production process, PET spunbond non-woven fabric is a kind of fiber material with superior performance in non-woven fabrics. It is the same as cloth in shape, but its construction process is distinct from cloth. The clothes used in life are mainly woven from cotton, fiber and other fibers, while non-woven fabrics are completed by another construction process.
Why does the non-woven needle punching machine need to lay the base fabric?
How to properly use the non-woven needle punching machine to lay the base fabric?
What is the effect of the density of non-woven needle punching machine on product quality?
The non-woven needle punching machine laying light and thin base fabric can greatly improve the initial elastic modulus of the non-woven material, but it does not help to improve the breaking strength. Laying a high-strength thick and heavy base fabric can greatly improve the breaking strength of non-woven materials, but attention must be paid to the damage of the thorn to the base fabric.
The research shows that when the needle punching depth of the non-woven needle punching machine is 13mm, the needle punching density is 200 punches/cm2, and the single-edge barb needles are arranged in the longitudinal position, the longitudinal strength of the base fabric after needle punching remains 90%, and the lateral strength remains 90%. 28%; single-edged barb needles are arranged in the horizontal position, the longitudinal strength of the base fabric after acupuncture remains 10%, and the lateral strength remains 90%. Reasonable setting of the arrangement angle of the barb of the needle can take into account the longitudinal and lateral residual strength of the base fabric after acupuncture. If the angle between the barb edge of the single-edge barb needle and the feeding direction of the fiber web is set at 40°, the vertical and horizontal strength of the base fabric after acupuncture can remain about 50%. Effects of felting needles of different structures and their arrangement angles on the warp and weft threads of woven base fabrics.
The needle punch density of non-woven needle punching machine refers to the theoretical needle punch number per unit area (1 square centimeter) of the fiber web. Needle punch density is the most important process parameter. Generally speaking, the greater the needling density, the stronger and tougher the product. However, if the fiber web is tight enough, re-needling will cause fiber damage or needle breakage, which will reduce the strength of the product. The needling depth is the length of the needle sticking out of the fiber web after puncturing the fiber web, and the unit is mm. Within a certain range, with the increase of the needling depth, the entanglement between the fibers is more sufficient, and the strength of the product is improved. However, if the needle is too deep, the fibers will break and the strength of the product will decrease. Usually the acupuncture depth is between 3 and 17mm.
DongYang AoLong Non-woven Equipment Co., Ltd. has focused on the development and production of non-woven needle punching machines for several years. And it commits to providing perfect service for every customer from all over the world.