Tarpaulin material and tent classification

Tarpaulin generally refers to relatively thick cotton fabrics or linen fabrics. The original tarpaulins were mainly used as sails on ships. Tarpaulins usually use plain weave, but a small amount of tarpaulins also use twill weave, and the warp and weft yarns for weaving tarpaulins generally use multiple strands. Most of the tarpaulins are divided into two types: coarse tarpaulins and fine tarpaulins. Coarse tarpaulins are also called tarpaulins. They have high strength and folding resistance, and have excellent waterproof performance. Cover and pitch tents in the wild. Fine tarpaulins are mostly used to make labor protection clothing or labor protection articles. Fine tarpaulins can also be dyed to make fabrics such as shoes, travel bags, backpacks, etc. Tent Oxford cloth is a kind of cotton-like fabric, which is soft, smooth and wear-resistant. It is usually used as the bottom of tent tents, so the bottom of tent tents is usually marked as polyethylene or polyethylene, which is low cost, waterproof, and does not need to be glued. Many low-cost tents are used as the bottom of the tent, which looks like a small square sackcloth. PU refers to polyurethane (polyurethane) or spandex, which is usually used as the expression of waterproof pressure glue. Whether it is polyester taffeta or Oxford cloth itself, it is not waterproof. After pressure glue treatment, the number indicates the value of water pressure resistance. During the test, the tent cloth is clamped on a circular kit, and then the water is pressurized by an electric method. When the third drop of water seeps out of the tent, the water pressure value at this time is the waterproof value. So what is the concept of 2000mm water pressure? Usually the waterproof capacity of the umbrella is PU1000mm. If the glue level of the tent outside the tent is lower than this value, it can basically be considered that leakage will occur under heavy rain. If you want to ensure the reliability of the tent's weatherproofing, considering the wear of the glue, the outer tent glue should not be less than 1200mm, and the bottom of the tent has to bear the weight of people lying on it, so the glue pressure requirements are high, usually at least Above 2000mm. In addition, the tent tents that are newly manufactured are usually treated with water-repellent treatment, and their waterproof ability will gradually disappear with the wear of the water-repellent agent. Some tents reduce the PU value to reduce costs, which is why some tents are bought when they are purchased. Rainproof is good, the reason why it loses rainproof after a few uses. Classification of tents: 1. It is a single layer for summer use, which is quite ventilated. It is a canopy with a nylon bottom, which is quite ventilated. It is a low-altitude camping type. It can resist light rain. The design considerations focus on ventilation followed by resistance. In weather, the top cover is usually a ventilated screen mesh, the bottom layer is nylon cloth, and there is an outer tent. The light color will not make the interior too unbearable from the sun, and it cannot resist the strong wind belt. The outer tent can only withstand light rain. 2. The three-season use refers to the tent used in the non-snow season. It is different from the camp post. It can resist strong wind and a little snow. Most tents have a breathable nylon inner tent and a waterproof outer tent. The tent door is Double layer, one layer is gauze, the moisture inside the tent can leak out, and the tent door is large. This kind of tent is suitable for three days to one week of activities, preferably forests or open camp terrain that will not be too exposed. 3. The material of tents used in the four seasons is relatively hard, which can support snow and strong winds. The double-door type is easy to enter and exit the camp in bad weather. The design of such tents considers the problem of equipment access during the snow season and whether the internal and external tent space is sufficient for cooking. Suitable for snow blizzards below forest boundaries. 4. Alpine use Most of the alpine air flow is quite strong, the camp pillars of the tent support and resist sudden bad weather, the tent design must be suitable for the needs of rock climbers or hikers, and it is easy to carry and live comfortably. 5. Tarpaulin Tarpaulin is a fairly lightweight and low-cost camping method. It can be used in low-altitude forests or sub-alpine forests. It has poor defense against heat release and wind or insect infestation. The tarpaulin is easy to build. It is good to punch holes in the four corners to facilitate the cover. Otherwise, use some small boulders to wrap them and tie strings. As for the camp nails, you can find some small branches as camp nails. The good size is 9x12 feet for two people. , 11x14 feet if there are about three people.
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