Canvas is a thick fabric of cotton or hemp, so named because it was originally used for sailing. Generally, plain weave is used, a small amount of twill is used, and multiple strands of warp and weft yarn are used. Canvas is usually divided into thick canvas and thin canvas two types.
Rough canvas, also known as pongee, has good waterproof performance, the biggest feature is strong and durable, used for car transport and open-air warehouse cover and field tents. Thin canvas is used to make labor protection clothing and supplies, after dyeing or printing, it can also be used as shoe materials, luggage fabrics, handbags, backpacks, tablecloths, tablecloths and so on. In addition, there are rubber canvas, fire, radiation shielding canvas, paper machine for the canvas.
About 50% of the canvas is made of cotton. In order to strengthen the strength of the fabric or reduce the cost, poly-cotton yarns are also used as canvas. Polyester cotton canvas feels a little hard and cool feeling, cotton is relatively thick and simple feeling. To distinguish, the simplest is to drop a drop of water, which will soon penetrate cotton, and conversely, polyester cotton.
Rough Canvas
Also known as Peng cover cloth, commonly used 58 (10 British branches) 4 to 7 strands of thread woven, fabric fast folding, waterproof canvas with good waterproof performance, used for car transport and open-air warehouse cover and field tent.
Fine Canvas
Warp and weft yarn is generally 2 strands no. 58 to 6 strands No. 28 (10 British /2 ~ 21 British /6), used for the production of labor protection clothing and supplies, after dyeing or printing, can also be used as footwear, luggage fabrics, handbags, backpacks, tablecloths, tablecloths and so on. The types of canvas are mainly divided into the above two kinds, in addition, there are rubber canvas, fire, radiation shielding canvas, paper machine canvas.
Canvas fabric unit - canvas yarn count
Refers to the thickness of the yarn, that is, a pound (454 grams) of heavy cotton yarn, the 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, its fineness is the corresponding 10, 1 yarn is expressed as 1S, 32 double yarn is expressed as 32S/2. 42 3-ply yarn is 42S/3.
Canvas fabric unit - canvas density
The density of the canvas fabric refers to the number of threads arranged by the weft 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, wear resistance and thermal insulation properties of the fabric.
Canvas fabric unit - gram weight of canvas
The density of the canvas fabric refers to the number of threads arranged by the weft 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, wear resistance and thermal insulation properties of the fabric.
Canvas fabric unit - Canvas width
Width: refers to the latitude width of the canvas, commonly used in the international "inch" or "", such as 63". In China, "centimeter" or "cm" is commonly used, such as "160cm". Inches and centimeters conversion formula: 1 inch =2.54 centimeters.
Common canvas categories in life
1.pvc tarpaulin: The processing method of separating high temperature heat sealing can play a 100% waterproof role. pvc tarpaulin has waterproof, mildew proof, cold resistance, aging resistance, anti-static and other properties; The breaking strength, tearing elongation and tearing strength are much better than traditional tarpaulin. pvc tarpaulin surface stop special treatment of anti-slip effect, is the world's common waterproof canvas. Can be customized according to customer size into different uses of tarpaulin products, such as automotive tarpaulin, Marine tarpaulin, cover goods tarpaulin and so on.
2 oil wax tarpaulin: also known as oil wax canvas, oilcloth, wax cloth, many car tarpaulin are using this cloth, characteristics: wear-resistant, waterproof, durable; However, it is relatively heavy, it will become hard after a long time, the pinholes between the interfaces will be relatively large, and it may gradually leak in the rain. Mainly used in the open yard, tents, car sails and other canvas products.
3. Silicone tarpaulin: also known as silicone Boutte property: light, soft, breathable, non-sticky dust, wear-resistant, waterproof. Mainly used in the open yard, tents, car sails and other canvas products.
4. Knife scraper tarpaulin: has excellent mildew resistance, 100% waterproof, waterproof as pvc coated canvas, good low docile softness, high strength, strong tension, relatively light and other characteristics; Knife scraping cloth is very common, such as foreign trade, grain storage, oil fields, docks, tents, drilling tower clothes, road and railway transportation, warehousing, coal mines, open yard and other canvas products.
5. Waterproof nylon Canvas: It is nylon cloth and flame retardant inside, look or feel more soft, glossy, relative to other canvas more waterproof! Its characteristics of breaking strength, tearing elongation, tearing, strength is much better than the traditional tarpaulin, is the international popular environmental waterproof canvas.