Neoprene hoods are usually unisex items (mens and womens) and designed to retain heat lost through the head. When you are in very cold water, your head will losethe most warmth through the head, so you need a separate hood to keep warm. For surfing, you need a surfing hoods. For scuba diving, you may need a scuba dive hoods. Many neoprene hoods now come with fleece linings as to increase the overall warmth by keeping the hood pocket dryer, this is because these linings are hydrophobic and repel water from inside the hood.
Surfing Hoods,Neoprene Hoods,Surf Hoodie,Surf Hood Shenzhen Seaskin Sports Goods Co., Ltd. , https://www.seaskinwetsuit.com
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The shear resistance of knitted fabrics is manifested in two aspects. First, due to the smooth surface of the fabrics, such as chemical fiber filaments and silk fabrics, slip occurs between the layers when cutting with electric scissors, resulting in differences in the dimensions of upper and lower layers. Second, when cutting synthetic fabrics, the electric scissors are too fast and the accessories are thicker. The friction and heat are easy to melt and bond the chemical fiber.
In order to improve the shear resistance of knitted fabrics, the following measures can be taken:
1. When the smooth fabric is cut, the accessories are not easy to get too thick and should not be moved. It is better to fix them with a jig or put a pad of paper between the upper and lower layers, and then open the cuts to prevent them from moving up and down.
2. Control the vacuum suction pressure. If the suction pressure is too high, the pieces will be deformed under pressure; if the suction pressure is too low, the pieces will slide and the quality of the pieces will not meet the requirements.
3. The speed of the electric knife should not be too fast. Control the cutting temperature within the allowable range of the fabric. Blades with a wave-shaped blade can be used, and high-grade silk knit fabrics can be cut by hand.
4. To see the knife in and out, try to avoid repeated feeding, so as not to slip up and down.
5. Use the latest laser cutting and cutting. At present, the cutting and cutting technologies used in China mainly focus on cutting and cutting by hand and power tools, and their accuracy and operation accuracy are limited. With laser cutting technology, the above problems can be solved. The laser process cuts and cuts, that is, concentrates the high-intensity energy to the specified fabric part, and converts the energy into heat energy to precisely cut the desired fabric. Compared with traditional manual cutting and electric cutting and cutting, the laser technology can not only meet the precision requirements of the garment processing on the cutting work, but also can effectively improve the labor productivity. Prior to cutting, the laser speed does not exert any force, so no vacuum fabric positioning device is required, especially for those fabrics with higher polyester or polyamide content, the advantages of laser cutting will become more apparent. Because the laser is able to slightly melt the edges of the cuts of this type of fabric, a fused edge that does not sag is formed, and the trimmed edges can be left untreated (no trim and no hem).