Antibacterial and bacteria-isolation SMMS composite non-woven fabric

Abstract

The invention relates to an antibacterial and bacteria-isolation SMMS composite non-woven fabric. The SMMS composite nonwoven fabric is formed by compounding a first spunbond non-woven fabric layer, afirst meltblown layer, a second meltblown layer, and a second spunbond non-woven fabric layer, wherein the first spunbond non-woven fabric layer and the second spunbond non-woven fabric layer are respectively an upper surface layer and a lower surface layer, the first meltblown layer and the second meltblown layer are intermediate layers, the spunbond non-woven fabric layers and the meltblown layers are all obtained by using polypropylene as a raw material and adding an antibacterial agent for processing, and the antibacterial agent is a chemical and biological compound antibacterial agent ofpolyhexamethyleneguanidine and gamma-polyglutamic acid. The SMMS composite non-woven fabric has the antibacterial and bacteria-isolation functions, the use of the spunbond non-woven fabric layers asthe upper and lower surfaces can ensure that the non-woven fabric has certain strength, good tear resistance, and good wear resistance, the intermediate layers adopt double-layer meltblown, permeability resistance is ensured while the air-permeability and bacteria-isolation performance are good, the resistance to bacteria is not produced, and the use is safe and reliable.

Description

Technical field [0001] The invention belongs to the technical field of non-woven fabrics, and specifically relates to an antibacterial bacteria-separating SMMS composite non-woven fabric. Background technique [0002] At present, disposable products such as medical protective clothing, isolation gowns, and surgical gowns are generally made of single-layer or double-layer non-woven cotton nets, or are made of two layers of non-woven fabrics with a plastic film layer between them, and then glued together. Composite non-woven fabric production. The former has good air permeability, but has poor water resistance, alcohol resistance, and plasma resistance, which is easy to cause bacteria and viruses to invade, and has poor strength and is easy to tear; while the latter is the opposite, due to the presence of the intermediate plastic film. Its permeation resistance and strength make its breathability worse and it is extremely uncomfortable to wear and use. In addition, the above-menti...

AI Technical Summary

Problems solved by technology

The former has good air permeability, but poor waterproof, anti-alcohol, and anti-plasma permeability, which is easy to cause the invasion of bacteria and viruses, and has poor strength and is easy to tear; while the latter is the opposite, due to the existence of the middle plastic film, increasing Its impermeability and strength make its air permeability worse, and it is extremely uncomfortable to wear; in addition, the above-mentioned materials are disposable products, which are difficult to degrade and easily pollute the environment

At the same time, in order to meet the antibacterial performance requirements of disposable products such as medical protective clothing, isolation gowns, and surgical gowns, antibacterial agents are generally added, and the added antibacterial agents are generally chemical antibacterial agents, which can easily cause bacteria to develop resistance and have a greater negative impact.

[0003] Chinese patent CN 108486875A discloses an antibacterial non-woven fabric for medical and sanitary use and its preparation method and application. The antibacterial sterile non-woven fabric for medical and sanitary use is obtained by immersing the non-woven fabric in an antibacterial finishing solution and drying, and has the ability of antibacterial and sterilizing , can be used for medical products such as surgical gowns, protective clothing and masks, but has the following defects: (1) The non-woven fabric used is made of cotton or polyester or polypropylene or nylon or spandex or acrylic, waterproof, anti-alcohol, anti- Plasma has poor permeability, which is easy to cause the invasion of bacteria and viruses; (2) the antibacterial agent is 1-chloro-3-hydroxymethyl-5-epoxypropyl-S-triazinetrione and / or 2-chloro- 4-(4-sulfoanilino)-6-(3-hydroxypropyl-5,5-dimethylhydantoin)-1,3,5-triazine, all chemical antibacterial agents, are easy to make bacteria (3) The preparation method of the antibacterial non-woven fabric is to immerse the non-woven fabric in an antibacterial finishing agent and then dry it, and the process is cumbersome

Images