Functional layer:
Friends who often participate in outdoor activities are aware that there are many barriers in the field. Functional layers and clothing are essential items in outdoor clothing. The functional outerwear is designed with great emphasis on the actual needs of the user, with particular emphasis on the functional and detailed design of the fabric. From the fabric, it is required to have windproof, water and breathable properties, and the details need to take into account the user's use in a complex environment (such as waterproof zippers, ventilation devices, hoods). Functional layer clothing is generally composed of three layers:
Table cloth
membrane
Rib
Among them, the table cloth is generally made of high-density material, wear-resistant and tear-proof, play a role in the protection of the fabric; middle film is the soul of functional materials, we usually refer to the name of the various types of functional fabrics actually refers to This layer of film. Most chemical synthetic products, such as polytetrafluoroethylene. The protective effect of the functional layer mainly depends on their molecular structure and the volume difference between water and gas molecules to achieve the effect of windproof (water) and air permeability; the lining cloth is generally made of lining mesh material, and the effect is similar to that of the table cloth. It is still used to protect the membrane from damage.
At present, there are many kinds of functional clothing brands on the market. From 1,200 ordinary gel coats to 5,6000 XRC ARC'TERYX. Different channels, different manufacturers have the corresponding products. Most brand manufacturers have chosen the products of internationally renowned fabric manufacturers to manufacture their garments. Some manufacturers even have their own patented technology fabrics. Some of these products have good air permeability and some have strong water resistance. And among the most familiar and well-understood ones are the GORE-GORE-TEX series. Just take a look at the high-end products of genuine manufacturers and you will know its strength. Although GORE-TEX products are not only short-lived, but also in a single technical performance and GORE-TEX fabrics are not infrequent. However, in China, it is a rare product that can be called a high or low product in terms of overall performance and market promotion. GORE-TEX products are currently divided into: 2nd, 3rd, XCR and PACLITE categories. Each of them has its own characteristics and uses. When buying GORE-TEX clothing, everyone must understand which type of fabric they belong to, and avoid buying products that are not suitable for their own use. In simple terms: 2 layers of fabric are relatively soft, the clothing generally has a mesh lining (the GORE-TEX film can be seen through the lining), the use is relatively wide, suitable for leisure activities; 3 layers of fabric texture relative to 2 layers Harder, the lining protective layer is pressed directly on the film (the GORE-TEX film cannot be seen), it is generally wearable, but it is more wear resistant. It is specifically designed for high-strength outdoor activities; XCR is more air-permeable The fabric's breathability index is 25% higher than that of traditional GORE-TEX fabrics, and it is also a good material for making cross-country running shoes. PACLITE is an ideal fabric for one-day light travel activities. It is lightweight and easy to shrink. Its structure is very similar to the 3-layer GORE-TEX product, which has a protective layer (appearance is grayish black) and can prevent oil contamination, but it is generally scratch-resistant and is not suitable for activities in the jungle.
At present, there are many functional clothing on the domestic market. Most high-end products use GORE fabrics or fabrics developed by them (such as COLUMBIA). Domestic products are mostly using DENTIK materials. When choosing, we suggest that you purchase products from the proper channels so as to get perfect after-sales service guarantee.
From the above introduction we can see: layer by layer dressing method is actually the use of clothing fabrics to achieve the physical layer perspiration fast dry, warm and warm middle layer, functional layer waterproof function. With the continuous development of textiles and processing technology on apparel fabrics, increasingly functional products will continue to emerge. Layer-by-layer dressing is just a general dressing method for outdoor activities. It basically targets the torso. Do not ignore the protection of the head and feet in outdoor activities (research shows that 60% of the body's heat is lost from the head). In fact, layer-by-layer dressing is just a reference for everyone when they dress. When it comes to outdoor activities, it is still necessary to flexibly master and choose the clothing and methods worn according to the actual environment. After all, he knows his own needs best, and finding the right one and fitting himself is the most fundamental.
Well equipped. . . . . . Oh, "Who uses who knows!"
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The Face access control attendance machine is mainly used for the attendance statistics of the company's employees. Have Android attendance Face Recognition and Linux attendance face recognition When employees sign in, they need to collect the employee's facial photos through the camera, and then use the attendance face recognition algorithm to obtain the feature values from the collected photos and store them in the database in face access control attendance system. Analyze and compare the feature values of the employee's face photos. If the employee's name is reported after the recognition is successful, the attendance is successful.
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