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PVC Tarpaulin Materials

PVC Tarpaulin Material is a waterproof material with high strength, good toughness, and softness. It is often used as a canvas (canvas), polyester with a polyurethane coating, or made of polyethylene plastic. Tarpaulins usually have sturdy grommets at the corners or edges for easy lashing, hanging, or covering.

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PVC Tarpaulin materials 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 truck covers 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 as bag vinyl tarps, backpacks, and other fabrics. In addition, there are rubber tarpaulins, shielding tarpaulins for fire and radiation protection, and tarpaulins for paper machines.

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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 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.

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The calculation unit of tarpaulin fabric density is in the 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.

(one) indirect test

This method is suitable for regular weave fabrics with high density and small yarn characteristics. First, after analyzing the fabric structure and the number of circular warp yarns

(Number of weft loops in the weave), and then multiplied by the number of weave loops in 10cm, the product obtained is the warp (weft) yarn density.

(two) direct measurement

The direct measurement method is completed by means of a cloth mirror or a fabric density analysis mirror. The length of the scale of the fabric density analysis mirror is 5cm. Under the analysis lens, a long glass piece is engraved with a red line. When analyzing the fabric density, move the lens and align the red line on the glass piece and the red line on the scale at the same time. Between the yarns, take this as the starting point, and count the yarns while moving the lens until the 5cm scale line is this. The number of output yarns is multiplied by 2, which is the density value of 10cm fabric.

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When counting the number of yarns, the center between the two yarns should be taken as the starting point. If the count reaches the endpoint, it exceeds 0.5, and when it is less than one, it should be counted as 0.75.

If it is less than 0.5, it will be counted as 0.25. Generally, 3-4 data should be measured for fabric density, and then the arithmetic means value should be taken as the measurement result.


Gram weight:

Refers to the weight in grams of one square meter of fabric.

Woven tarpaulin fabrics use “ounces”, “an” or “OZ”. Knitted tarpaulins generally use gram weight (g/m2).

28.35 grams, which is related to the yarn count and the weft and warp density of the fabric. The thicker the yarn, the thicker the cloth, and the greater the gram weight.

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