Classification of tarpaulins
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Classification of tarpaulins
Tarpaulin (or tarpaulin) is a waterproof material with high strength, good toughness and softness. It is often used as canvas (canvas), polyester with polyurethane coating or made of polyethylene plastic. Tarpaulins usually have sturdy grommets at the corners or edges for easy lashing, hanging or covering.
Tarpaulins are usually divided into two categories: coarse tarpaulins and fine tarpaulins.
Coarse tarpaulin, also known as tarpaulin, is a strong and foldable fabric with good waterproof performance. It is used for car transportation and cover of open warehouses and tents in the wild.
The warp and weft yarns of fine tarpaulin are used in the production of labor protection clothing and its supplies. After dyeing, it can also be used as shoes, travel bags, backpacks and other fabrics. In addition, there are rubber tarpaulins, shielding tarpaulins for fire and radiation protection, and tarpaulins for paper machines.
1. Yarn count:
In short, the yarn count refers to the thickness of the yarn, which is commonly used in China or "Imperial", that is: a pound (454 grams) of cotton yarn (or other component yarns) with a length of
At 840 yards (0.9144 yards/meter), the fineness of the yarn is one. If a pound of yarn, its length is 10 × 840 yards, and its fineness is 10, the representation method of yarn count is the English letter "S". The representation of a single yarn is:
32 single yarns-------represented as: 32S strands are expressed as: 32 strands (two parallel twists) are: 32S/2, 42 3 parallel twists are: 42S/ 3.
2. Density:
The calculation unit of tarpaulin fabric density is in metric system, which refers to the number of warp and weft yarns arranged within 10cm. The size of the density directly affects the physical and mechanical indicators such as the appearance, feel, thickness, strength, folding resistance, air permeability, abrasion resistance and thermal insulation performance of the fabric, and it is also related to the cost and production efficiency of the product.
