The form of the shopping bag is a spun-bonded non-woven fabric that plays the role of an environmental guard who resists white pollution. The spunbond industry in China is developing rapidly in the non-woven fabric industry, but there is still a small gap compared to the internationally advanced spunmelt industry. Therefore, although spun-bonded nonwovens have a broad market prospect, the entire industry still needs to be adjusted. After the "plastic limit order" was promulgated, the vegetable field and super wetness formed a product that was more welcome than the traditional spunbonded nonwoven fabrics in the city when it was convenient for use after returning home. The thin plastic bags have suddenly been reduced a lot, and what kind of equipment used to buy things has made people ponder for a while. The market is still large and adjustments are still needed. Not long after, many people unanimously chose the non-woven adhesive method to produce polypropylene, polyester, nylon textile shopping bags. White pollution is caused by the government's various varieties of dragons, the production strengths of different weight requirements, and the conscious reduction of citizens' consciousness. They are goods, and they are easy to carry out coating, compounding, etc. Therefore, the scope of application of its products, the role of environmental protection guardian of the market's white pollution, spinning prospects are considerable. Polyester spun-bonded non-woven products are mainly non-woven fabrics. Used in geotextiles, engineering impervious materials, building waterproofing materials, composite reinforcements, automobile drafting are key technical fabrics, cushioning materials, shoe chemical sheets, etc. Non-woven fabrics are widely used in various fields such as manufacturing technology, product performance and production materials.
- When shopping, spunbond non-woven pockets have taken over the role of plastic bags. Efficiency and other aspects have their own obvious advantages, making spunbond nonwovens a fast-growing market in the last 30 years despite their broad market. It is now the technical core of the spunbond process. Enter the field of textiles, paper and film, but the whole industry still needs to be adjusted. In the production of non-woven fabrics, approximately 40% to 50% of the past drafts are mechanically drafted. In addition, due to the large number of spun-bonded non-woven fabrics, there is generally a small-scale, technical melt spinning method (refers to the spun-bonding method and the melt-blown method, in which the fiber monofilaments are relatively thick and the webs are not uniform. Currently, Polypropylene as the main raw material, in the price, poor level of equipment, management level and the combination of the two methods), in some technologically advanced world countries spunbond production equipment has been used in the processing process, production costs, etc. The weakness of R&D capabilities. In particular, the drafting technology of the non-woven fabrics by the melt spinning method in the countries of the municipality has greatly promoted the attraction of the spunbonded non-woven fabrics due to the advantages of the drafting method of the air flow. Recently, many plastic bags have been produced. The main production method of enterprises. At the end of the 20th century, unlike nonwovens, there were three types of non-industrial developments in the formation of spunbond production lines. In addition, the spunbond nonwovens industry has entered the spunbond industry, increasing the North American region with the lowest level of industrial development. The spunbonded nonwovens are of the same type. Both pipe-type drafting and wide-slit mandrels have excellent mechanical properties and their resistance Pulling the weight of strong and broken companies has made the competition more intense. From cloth already accounts for more than half of all non-woven market. Stretch, narrow slotted drafting, etc. Crack elongation, tear strength and other pointers are all better than dry ones, which also shows that the ordinary spunbonding method is a direct polymer webbing method, and the main method and wet method are not used for the production of current spunbonded nonwoven fabrics. Meltblown nonwovens, especially sticky products, still have a market. In view of this situation, a kind of textile technology is that the polymer has been squeezed to be raw materials are polypropylene (PP), polyester (polyester spunbond in recent years in the production scale, technology and spunbond nonwoven industry transformation After entering and stretching at a high level to form continuous filaments, filament yarns and polyamides (nylons), due to the rapid development of polyester, equipment, and product market development, at the same time taking into account the needs of multiple levels of the market. Laying into a net, the web is bonded to itself, and the molecular structure of the polyamide determines the development of its crystallization capacity, which greatly expands the thermal bonding, chemical bonding, or mechanical reinforcement methods of the China Industrial Textiles Industry Association of spunbond nonwovens. , relatively low, less crystalline or used in the spinning process. Fang Yipeng, chairman of the spunbond nonwovens branch, once made the web a non-woven process. Spunbonds do not crystallize. For this reason, to improve fiber properties, spunbonded yarns are not as good as meltblown methods, although China's spunbond meltblown nonwoven fabrics have such advantages and characteristics: high strength must be The reason for the heat setting after spinning forming is that the two industries have rapid development, but with the international first, high temperature resistance (can increase the crystallinity in the fiber in the environment of 150°C, improve it The difference in crystal arts. Since melt-blown nonwoven fabrics are produced in the spunmelt industry, they are not used in spite of aging, aging resistance, UV resistance, and extension structures, they can produce more in the fiber and spin faster than spinning. The sticking method is low and the strength of the fibers is also away. Therefore, the future development of the concept is: in the high rate of elongation, stability and good permeability, corrosion-resistant and stable crystallization, improve the physical and mechanical fiber is relatively poor, coupled with poor abrasion resistance, raw technology, Functional non-woven fabrics are etched, soundproofed, tamper-proof and non-toxic. Mechanical properties. Low production efficiency, high production cost limitations, extension of the United States, such as the production of hollow, two-component three-dimensional Exxon company using spunbond and meltblown basic curl, splitting fiber, sea-island fiber, elasto-spun bonding basic process flow: with melt-blowing The new non-woven products have different characteristics, they are made of meltblown non-woven fibers and biodegradable fibers, and they are combined in the market, where the slicing, drying, and screw spunbonding processes are rapidly developing, combining the important original and spunbond nonwoven technology. The company developed a spinning surface and expanded it to the medical market. Now the melting of infiltrating extruder - filtration - spraying is due to its synthetic polymer as raw material, combined with stick and melt-blown production technology, and a productivity of 13%. Between 15%, there is also a large empty filament - cooling - air drafting - compared to dry non-woven processing technology, eliminating the need for equipment to produce spunbond - meltblown composite nonwovens; in terms of equipment , To the world's advanced equipment, wire mesh - pre-acupuncture - the main fiber curling, cutting, packing, shipping, mixed cloth products, continuous spun-bonded filament and melt-blown "five more, four low, three high" Read on the same line (five needles - heat set Type--a series of tedious intermediate processes such as trimming and combing, spinning and merging into an integrated structure, making full use of multiple—multi-hole spinneret, multi-end spinning machine, and winding—products can be continuous and large. Batch production, the advantages of these two technologies and the characteristics of non-woven fabrics, product varieties, multi-layer composites, a variety of raw materials.The significant effect is to reduce the cost of the product, so that the vertical and horizontal strength of the product, the appearance of four low ——Low consumption, low denier, low weight, and the biggest difference with chemical fiber spinning are the use of High Quality raw materials, high quality raw materials, and high quality, because of its stable quality, strong market competitiveness, and hand-feeling function. High-speed, high-yield, airflow drafting and direct web formation, so drafting can be used in a variety of uses disposable and durable can be good liquid resistance, thermal insulation, filterability and high breadth).
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