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First of all, do you need four-sided breathable cloth to design or 2-sided breathable cloth + 2-sided mesh cloth? Or just use 4-sided mesh? Many customers do not know how to choose. On the one hand, in terms of the cost of the cloth, the cost of the breathable woven cloth is the lowest; on the other hand, in terms of the bearing capacity or tensile force and wear resistance of the cloth, the mesh cloth will be even better. It is not generally speaking that the kind of fabric is better, but to design the most suitable bag according to the specific needs of customers. This is what we have always insisted and pursued.
Secondly, it is also critical to use a base cloth with a suitable square meter weight. We all know that the higher the gram weight of the fabric, the stronger the bearing capacity, and the cost of the corresponding bag will be relatively high. So how to choose the right base weight is also a knowledge. Of course, this is related to the design of the bag type, cross-angle sling, side seam sling, or pocket bottom sling. Each style of sling has its own characteristics, advantages and disadvantages, so it is necessary to analyze the specific situation according to the specific situation.
Thirdly，It is necessary to add anti-ultraviolet masterbatch and flexible masterbatch to the raw material drawing ratio. Adding this masterbatch will inevitably increase the cost of the bag, but many customers do not know this truth. Usually, this kind of firewood bag is stored outdoors and the weather is cold, so Plastics are prone to brittleness. In addition, even in winter, ultraviolet rays are still present. Therefore, some customers buy cheap bags, but after the firewood is packed and stored for a period of time, when they are ready to be shipped to buyers, the bags appear to be broken, which is really a headache. Our factory has developed a more suitable additive masterbatch for such problems to ensure that there will be no problems such as bags.
Asbestos, also known as "asbestos fiber", is a general term for certain silicate minerals that can be split into elastic fiber filaments. Chemical formula: 3MgO·2SiO2·2H2O, fibrous, greenish-yellow or white, white when split into flock, silky luster, elastic fiber, asbestos has acid, alkali and heat resistance, but also heat and electricity bad conductor. The longer fibers are used to make fireproof textiles, such as asbestos rope, asbestos tape, asbestos cloth, etc.; the shorter fibers are used to make asbestos cement products, asbestos sound insulation materials, asbestos thermal insulation materials (asbestos magnesium carbonate thermal insulation powder) and low Insulation materials for voltage appliances, etc. Asbestos produces a large amount of dust in the process of mining and use, which can damage the human body in many ways, and attention should be paid to strengthen protection.Commonly used standards
GB/T 23263-2009 Method for determination of asbestos content in products
HJ/T206-2005 Technical requirements for environmental labeling products Non-asbestos construction products
NIOSH 9000 X-ray diffraction method to detect asbestos and chrysotile
NIOSH 9002 Polarizing Microscope for Asbestos Determination
NIOSH 0500-1994 Total dust gravimetric method Total asbestos dust in workplace
ISO 22262-1: 2012 Air Quality—Bulk Materials—Part 1: Ozone and Qualitative Determination of Asbestos in Commercial Bulk Materials
Specific application of asbestos
Asbestos fibers can be woven into yarn, thread, rope, cloth, packing, etc., as materials or linings for transmission, heat preservation, heat insulation, insulation and other components. In construction, they are mainly used to make asbestos boards and asbestos paper fire boards. Insulation pipes and kiln mats, and materials such as heat preservation, heat protection, insulation and sound insulation. Asbestos fiber can be mixed with cement to make asbestos cement products such as asbestos cement tiles, boards, roof slabs, and asbestos pipes. Asbestos and asphalt can be blended to make asbestos asphalt products, such as asbestos asphalt board, cloth (linoleum), paper, bricks, and liquid asbestos paint, putty for cement pavement and expansion cracks, etc., which are used as waterproofing, Materials for heat preservation, insulation, acid and alkali resistance, and materials for traffic engineering. For national defense, asbestos is bonded with phenolic, polypropylene and other plastics, which can be made into anti-ablative materials for rockets, aircraft wings, fuel tanks, rocket tail nozzle tubes and torpedo high-speed launchers, ships, automobiles, aircraft, tanks, and ships. The sound insulation and heat insulation materials, asbestos and various rubbers are mixed and molded, and can also be made into sealing materials for the connecting parts of liquid rocket engines. Asbestos and phenolic resin laminates can be used as heat-proof materials for missile heads. Blue asbestos can also be used as anti-chemical, anti-atomic lining, partition or filter, acid-resistant packing, rubber sheet, etc.
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Mr.Daniel
Mobile Phone:+86-13802155833
WeChat:+86-13802155833
WhatsApp:+86-13802155833
Telegram:+86-13802155833
E-mail: tjwoking@163.com
ppwovenbagpacksack@gmail.com
Asbestos pollution
About 95% of the asbestos used in the world is chrysotile asbestos, and its fibers can be split into very fine fiber. For every ton of asbestos consumed in industry, about 10 grams of asbestos fiber is released into the environment. One kilogram of asbestos contains about 1 million fiber. The diameter of the metafiber is generally 0.5 microns, and the length is less than 5 microns. It can be suspended in the air and water for weeks and months, causing continuous pollution. Studies have shown that asbestos-related diseases are widespread in many industrial occupations. Such as asbestos mining, processing and use of asbestos or asbestos-containing materials in various industries (construction, ship and automobile repairs, metallurgy, textiles, mechanical and electrical engineering, chemistry, agriculture, etc.).
Main types of asbestos products
Asbestos textiles: fireproof cloth, fireproof clothing, brake tape, liner, packing, plywood woven with electrical insulation tape
Asbestos cement products: asbestos cement tile roof panels, wall panels, decorative panels, electrical insulation panels, drainage pipes, ventilation boxes, pressure-bearing building parts
Asbestos board: asbestos cardboard, asbestos filter
Asbestos thermal insulation material: pure asbestos thermal insulation material, mixed asbestos thermal insulation material
Asbestos rubber sheet: encryption pad
Asbestos asphalt products: roofing materials (asbestos linoleum), waterproof materials (asbestos asphalt board), paving materials: asbestos plastic materials, brake systems, etc.
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