Waterproof Material factory Private
3 years ago - Multimedia - Chicago - 160 views$ --
Location: Chicago
Price: $ --
| Tarpaulin Tarpaulin (or waterproof cloth) is a high-strength, good toughness and softness waterproof material. It is often used as canvas (oil canvas), polyester coated with polyurethane or made into polyethylene plastic. Tarpaulins usually have strong grommets at the corners or edges to facilitate binding, hanging or covering with ropes. Chinese name锛歵arpaulin Foreign name锛歍arpaulin table of Contents 1.1 Purpose: 2.2 Classification Use: Classification Tarpaulins are usually divided into two categories: coarse tarpaulins and fine tarpaulins. Fine tarpaulin warp and weft yarns are used in the production of labor protection clothing and supplies. After dyeing, it can also be used as fabrics for shoes, travel bags, backpacks, etc. In addition, there are rubber tarpaulins, shielding tarpaulins for fire and radiation protection, and tarpaulins for paper machines. Coarse tarpaulin is also called tarpaulin. The fabric is strong and resistant to folding and has good waterproof performance. It is used for automobile transportation and open-air warehouse cover and tents in the field 1. Yarn count: To put it simply, yarn count refers to the thickness of the yarn. What is commonly used in China is the "imperial system", that is: one pound (454 grams) of cotton yarn (or other component yarn), the length is At 840 yards (0.9144 yards/m), the yarn fineness is one piece. If a pound of yarn has a length of 10脳840 yards and a fineness of 10 yarn counts, the indication method of the yarn count is the English letter "S". The indication method of a single yarn is: 32 single yarns-------expressed as: 32S strands are expressed as: 32 strands (two twists in parallel) are: 32S/2, 42 strands and 3 twists are both: 42S/ 3. 2. Density: The calculation unit of the density of tarpaulin fabric is in metric system, which refers to the number of warp and weft yarns arranged within 10cm. The density directly affects the appearance, feel, thickness, strength, flexural resistance, air permeability, abrasion resistance, and thermal performance of the fabric. At the same time, it is also related to the cost and production efficiency of the product. (One) Indirect testing This method is suitable for fabrics with high density and regular weaves with small yarn characteristics. First, after analyzing the fabric structure and the number of circulating warps in the structure (The number of weft yarns in the organization cycle), and then multiply by the number of weave yarns in 10cm, the product is the warp (weft) yarn density. (two) Direct measurement The direct measurement method is accomplished 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. Below the analysis lens, a long glass sheet is engraved with a red line. When analyzing the fabric density, move the lens and align the red line on the glass sheet and the red line on the scale at the same time. Between the yarns, use this as the starting point, and count the yarns while moving the lens until the 5cm scale line is the same. The number of output yarns multiplied by 2 is the density value of the 10cm fabric. 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 take the arithmetic average value as the measurement result. When counting the number of yarns, the center between the two yarns should be used as the starting point. When the count reaches the end, it should be more than 0.5, and if it is less than one, it should be counted as 0.75. 3. Weight: Refers to the weight in grams of one square meter of cloth. Woven tarpaulin fabric uses "ounce", "an" or "OZ" knitted tarpaulin generally uses gram weight (g/m2). Its conversion is that 1 ounce is equal to 28.375 grams, but it is generally on the weighing machine. 28.35 grams is related to the yarn count and the warp and weft density of the fabric. The thicker the yarn, the thicker the cloth and the greater the weight.Waterproof Material factory website:http://www.geotechnicalmaterial.com/waterproof-material/ |
|---|
