Traditional Culture Encyclopedia - The 24 Solar Terms - Can the automobile anti-skid pad damage the leather?
Can the automobile anti-skid pad damage the leather?
The binding-free cushion is actually a kind of cushion with many small glue points on the back, and then these glue points and the dermis form a greater anti-skid effect to achieve the purpose of binding-free.
However, in practical use, if there is nothing on these particle glue points, or when people are not sitting on them, there will be nothing between these particle glue points and the dermis. Once people sit on it, because people are moving, there will be great friction between them, so these glue spots will form great tension on the dermis, which will definitely cause great harm to the dermis in the long run.
Dermal is mainly composed of fibroblasts and their fibers and matrix, as well as blood vessels, lymphatic vessels, nerves, skin appendages and other cell components.
1. fiber
(1) Collagen fiber: It is the main component of dermal fiber, which is polymerized from collagen fibrils with a diameter of 70 ~ 140 nm, with a diameter of 2 ~ 15 micron, mostly in bundles.
(2) Reticular fibers: immature slender collagen fibers with a diameter of 0.2 ~ 1.0μ m, only found under the epidermis, around sebaceous glands, capillaries, hair follicles and sweat glands.
(3) Elastic fiber: composed of microfibers and elastin, with a diameter of 65,438+0 ~ 3 microns, in a thin bundle, mostly interwoven with collagen fibers.
2.[ number] matrix
It is composed of mucopolysaccharides such as hyaluronic acid, chondroitin sulfate and protein, which is proteoglycan. It is filled in the gaps and cells of collagen fibers and fiber bundles and has hydrophilicity.
3. Cells
Mainly fibroblasts, followed by mast cells, macrophages, dendritic cells, Langerhans cells and phagocytes, and a small number of lymphocytes and white blood cells.
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