您现在的位置:
Homepage
/
/
Whole function

Solution

 

Check category

鸿盛实力

Our Strength

洁远

全国服务咨询热线

/
/
Whole function
New technology for textile functional finishing

New technology for textile functional finishing

The use of high-tech finishing technologies to increase the functionality of textile fabrics to protect textiles from various adverse environmental effects, such as ultraviolet radiation, harsh weather, microorganisms or bacteria, high temperature, chemicals such as acids, alkalis, and mechanical wear, etc. The profit and high added value of international functional textiles are often realized through finishing. 一、Foam coating technology There have been new developments in foam coating technology recently. The latest research in India shows that the heat resistance of textile materials is mainly achieved by the large amount of air trapped in the porous structure. To improve the heat resistance of textiles coated with polyvinyl chloride (PVC) and polyurethane (PU), it is only necessary to add certain foaming agents to the coating formulation. The foaming agent is more effective than the PU coating. This is because the foaming agent forms a more effective closed air layer in the PVC coating, and the heat loss of the adjacent surface is reduced by 10%-15%. 二、Silicone finishing technology The best silicone coating can increase the tear resistance of the fabric by more than 50%. The silicone elastomer coating has high flexibility and low elastic modulus, allowing yarns to migrate and form yarn bundles when the fabric tears. The tearing strength of general fabrics is always lower than the tensile strength. However, when the coating is applied, the yarn can be moved on the tearing extension point, and two or more yarns can push each other to form a yarn bundle and significantly improve the tear resistance. The silicone coating can produce a water repellent effect, so that the textile will not absorb too much water, so as to prevent the wetting effect from increasing the weight. The silicone rubber layer can filter out most of the harmful ultraviolet rays in the sun, and has a soft hand feeling. Silicone coatings are now used in airbag fabrics, hot air balloons, paragliders, spinnakers, tents, sleeping bags, and many high-performance sports and leisure fabrics. 三、Waterproof and oil repellent finishing technology The surface of the lotus leaf is a regular micro-structured surface, which can prevent liquid droplets from wetting the surface. The microstructure allows air to be trapped between the droplet and the surface of the lotus leaf. The lotus leaf has a natural self-cleaning effect, which is super protective. The Northwest Textile Research Center in Germany is using the potential of pulsed UV lasers to try to mimic this surface. The fiber surface is subjected to photonic surface treatment with pulsed UV laser (excited state laser) to produce a regular micron-level structure. If modified in a gaseous or liquid active medium, photonic treatment can be carried out simultaneously with hydrophobic or oleophobic finishing. In the presence of perfluoro-4-methyl-2-pentene, it can bond with the terminal hydrophobic group by irradiation. Further research work is to improve the surface roughness of the modified fiber as much as possible and combine with appropriate hydrophobic/oleophobic groups to obtain super protective performance. This self-cleaning effect and the feature of low maintenance during use have great potential for application in high-tech fabrics. 四、Antibacterial finishing technology The existing antibacterial finishing has a wide range, and its basic mode of action includes: acting with cell membranes, acting in the process of metabolism or acting in the core material. Oxidants such as acetaldehyde, halogens, and peroxides first attack the cell membranes of microorganisms or penetrate the cytoplasm to act on their enzymes. Fatty alcohol acts as a coagulant to irreversibly denature the protein structure in microorganisms. Chitin is a cheap and easy-to-obtain antibacterial agent. The protonated amino groups in the gum can bind to the surface of negatively charged bacterial cells to inhibit bacteria. Other compounds, such as halides and isotriazine peroxides, are highly reactive as free radicals because they contain one free electron. Quaternary ammonium compounds, biguanamines, and glucosamine exhibit special polycationicity, porosity and absorption properties. When applied to textile fibers, these antimicrobial chemicals bind to the cell membrane of microorganisms, breaking the structure of the oleophobic polysaccharide, and ultimately leading to puncture of the cell membrane and cell rupture. The silver compound is used because its complexation can prevent the metabolism of microorganisms. However, silver is more effective against negative bacteria than positive bacteria, but less effective against fungi. 五、Anti-felting finishing of worsted fabric With the increasing awareness of environmental protection, the traditional chlorine-containing anti-felting finishing methods are being restricted and will be replaced by non-chlorine finishing processes. Non-chlorine oxidation method, plasma technolog
Previous page
1

National Service Consultation Hotline:

0760-87778086

Address: Hongsheng Biological, Zhongxin Road, Shijing Industrial Zone, Dayong Town, Zhongshan City, Guangdong Province

Telephone:15900002561

qr

WeChat scan mobile browsing

Copyright © 2021 中山市鸿盛生物科技有限公司   技术支持:中企动力 中山   粤ICP备18151359号