Wet non-woven fabric

Wet-laid non-woven fabric technology is a new technology that uses paper-making equipment and technology to produce non-woven products or paper-cloth composite materials. It has been widely adopted in Japan, the United States and other economically developed countries, forming large-scale industrialization advantages. This technology breaks through the traditional textile principle, avoids the complicated procedures such as carding, spinning, weaving, etc., which are labor-intensive and low-production efficiency, and rationally uses the wet-laid technology of papermaking to make the fiber disposable on the paper machine. Set into a net and form a product. It greatly reduces labor intensity and improves labor productivity. This technology does not have repeated processing of fiber raw materials, and directly produces fiber products from short fiber yarns, which can reduce energy consumption, save manpower and material resources, and reduce manufacturing costs. Compared with other fiber product manufacturing methods, it has the following characteristics:
1. It is conducive to the conversion of small paper mills and the treatment of environmental pollution.

　　Wet-laid non-woven fabric technology can make full use of existing papermaking equipment, and can be converted into non-woven products without major technical transformation. This technology does not generate dust and harmful gases, and does not discharge waste liquid during the entire production process from material feeding to product storage. It is a practical technology for small papermaking to control environmental pollution and develop new products.
2. Conducive to water resources protection.

　　 The production of wet-laid non-woven fabrics requires less water. Water is only used as a fiber conveying medium to circulate inside the system, not to be discharged to the outside, and will not cause damage or waste of water resources. The small papermaking production process is simple and does not have water recycling facilities, and the production water is directly discharged. The popularization and application of this technology can alleviate the excessive development of water resources by small paper mills and is beneficial to water resources protection.
3. Wide sources of raw materials.

　　Wet-laid non-woven fabrics have strong adaptability to raw materials due to their web-forming technical characteristics, so reasonable process design can be carried out according to the final use requirements of the product, and fiber raw materials can be widely selected. In addition to plant fibers, the optional raw materials can also be polyester, polypropylene, vinylon, viscose fiber, glass fiber, etc. These raw materials can be used alone or mixed according to the ratio to give the product special functions. There is no shortage of raw material manufacturers in China, with a wide range of raw materials.
4. There are many product varieties and wide application fields.

　　 wet-laid non-woven fabric is a brand-new fiber product that is very different from woven fabrics and knitted fabrics due to its structural characteristics. It is basically composed of a fiber network (non-yarn network) structure. As long as you choose different fiber raw materials, different processing methods, and combine different finishing processes, you can make non-woven products with vastly different properties and a wide range of uses. It is widely used in many fields.
1. Medical hygiene and health care: surgical gowns, caps, masks; patient sheets, pillowcases; bandages, plaster cloths, etc.

　　 2. Household decoration and clothing: clothing lining, dust-proof clothing, labor protective clothing, dust-proof mask, artificial leather, shoe insole leather, vacuum cleaner filter bag, shopping bag, sofa cloth, etc.

　　 3. Industrial cloth: sound insulation felt for speakers, battery diaphragm paper, fiberglass reinforced base cloth, filter material, electrical insulation cloth, cable cloth, tape cloth, etc.

　　4. Civil engineering, construction: geotextile, sound insulation material, heat-proof material, waterproof material base cloth, oil felt base cloth.

　　5. Automobile industry: vaporizer filter element, air filter element, thermal insulation felt, shockproof felt, molding materials, interior decoration composite materials.

　　6. Agriculture and gardening: mulch cloth, seedling cloth, insect-proof cloth, frost-proof cloth, soil insulation cloth.

　　7. Packaging materials: composite cement bags, grain packaging bags, materials for luggage and other packaging materials.

　　 8. Others: map cloth, almanac cloth, canvas, money tie, etc.
5. Huge market potential and significant economic benefits.

　　Wet-laid non-woven fabric has fast web forming speed, short process flow, high labor productivity and low cost. Its labor productivity is 10-20 times that of dry method, and the production cost is only 60-70% of dry method. It has strong market competitiveness and good economic benefits. At present, the output of wet-laid non-woven fabrics in developed countries has accounted for more than 30% of the total output of non-woven fabrics, and is still growing. The output of wet-laid non-woven fabrics in my country is relatively low, and preliminary statistics are less than 5% of the total output of non-woven fabrics. Compared with developed countries, it has a larger potential market.

　　 Six. It is conducive to resource regeneration and suppresses white pollution.
For disposable products and packaging materials that are prone to white pollution, additives can be added to enhance their biodegradability, and functional materials can also be used to improve their recycling performance and reduce recycling costs. In order to facilitate the recycling of resources and suppress white pollution.

　　 In short, the wet-laid non-woven fabric technology is in the ascendant in my country, and its development prospects are good. The development and production of wet-laid non-woven products conform to the national industrial policy and the sustainable development plan. It helps to improve overall labor productivity, reduce production costs, and has important economic and social benefits in the treatment of environmental pollution and rational use of resources.