Spunlaced nonwoven fabric of ultra-high molecular weight polyethylene film and preparation thereof

Abstract

The invention discloses a spunlaced nonwoven fabric of ultra-high molecular weight polyethylene film and preparation thereof, which comprises an ultra-high molecular weight polyethylene film. The ultra-high molecular weight polyethylene film layer is opened by spraying the high-pressure fine water onto one or more layers of the ultra-high molecular weight polyethylene film. High-pressure fine water sprays to composite mesh in a form of tangling, and repeatly spunlaces, making the fiber mesh to be compressed, reinforced, dried to form the spunlace non-woven fabrics of ultra-high molecular weight polyethylene film. The preparation process comprises(1) preparating; (2) paving; (3) spunlace reinforcing; (4) stretching; (5) secondary spunlace reinforcing; (6) drying; (7) winding up. One-off molding manufacturing of spunlaced nonwoven fabric of ultra-high molecular weight polyethylene film and preparation thereof has the advantages of enhancing the overall mechanical properties, being not only with higher tear strength, tensile breaking strength, bursting strength, but also good permeable, breathable and widely used.

Description

technical field [0001] The invention relates to the technical field of non-woven fabrics, in particular to a spunlace non-woven fabric of ultra-high molecular weight polyethylene film and a preparation process thereof. Background technique [0002] Ultra-high molecular weight polyethylene fiber, also known as high-strength and high-modulus polyethylene fiber, is currently the fiber with the highest specific strength and specific modulus in the world. It is a fiber spun from polyethylene with a molecular weight of 1 million to 5 million. Ultra-high molecular weight polyethylene fiber has low elongation at break, large work of break, and strong energy absorption capacity, so it has outstanding impact resistance and cut resistance. At the same time, it has anti-ultraviolet radiation, chemical corrosion resistance, and abrasion resistance. Etc. [0003] Non-woven fabric is also defined as non-woven fabric, which is composed of oriented or random fibers. Rich, cheap, recyclable...

AI Technical Summary

Problems solved by technology

Among them, non-woven materials are the main research objects. Many domestic patents have proposed different methods of strengthening non-woven fabrics, but they are relatively cumbersome and have certain disadvantages. For example, Jinjiang Gangyi Fiber Products Co., Ltd. on June 1, 2012 The Chinese patent "A Composite Needle-Punched Non-woven Fabric" was applied for, and the patent number is 201220256454.1. The warp-knitted fabric is laid between two layers of non-woven fiber webs, and then a composite non-woven fabric is made by needle-punching. The method is to improve the overall mechanical properties of non-woven fabrics by combining organic woven or knitted fabrics with non-woven fiber webs. It has excellent characteristics of water permeability and air permeability, and the strength utilization rate of fibers is low

Wang Changyi applied for the Chinese patent "A Manufacturing Method for Nonwoven Mesh Reinforced Composite Nonwoven Fabric" on October 30, 2008. The patent number is 200810154952.3. This problem is solved by making full use of the strength of the reinforcing fiber, and the efficiency is high, but this method can only strengthen the two directions of warp and weft, and it is not suitable for non-woven fabrics with strength requirements in other directions, and the interlayer Formed by bonding, the overall stability is poor