1. Natural fiber natural fiber is a fiber that exists in nature and is directly available. Natural fibers can be divided into plant fibers, animal fibers and mineral fibers.
1. Plant fiber plant fiber, also known as natural cellulose fiber, is a fiber obtained from seeds, fruits, stems, leaves, etc. on plants. It includes seed fibers, bast fibers and leaf fibers.
(1) Seed fiber: such as cotton, kapok, etc.;
(2) bast fiber: such as ramie, flax, jute, ramie, apocynum, etc.;
(3) Leaf fiber: such as sisal, abaca and so on.
2. Animal fiber Animal fiber, also known as natural protein fiber, is a fiber obtained from animal hair or insect gland secretions. It includes hair and gland secretions.
(1) Hair category: refers to wool, cashmere, camel hair, rabbit hair, yak wool, etc.;
(2) gland secretions: refers to mulberry silk, tussah silk, ramie silk, cassava silk and so on.
3. Mineral fiber Mineral fiber, also known as natural inorganic fiber, is a fiber extracted from minerals. It mainly includes all kinds of asbestos.
2. Chemical fiber chemical fiber refers to a fibrous object made by manual processing, and chemical fiber can be divided into two major categories: man-made fiber and synthetic fiber.
1. Rayon rayon, also known as recycled fiber, is a fiber made from natural polymers or fiber raw materials that lose the value of textile processing. These include man-made cellulosic fibers, artificial protein fibers, man-made inorganic fibers, and man-made organic fibers.
(1) Man-made cellulose fiber: refers to viscose fiber, copper ammonia fiber, acetate fiber, and the like.
(2) Artificial protein fiber: refers to soybean fiber, peanut fiber, and the like.
(3) Artificial inorganic fiber: refers to glass fiber, metal fiber, carbon fiber, and the like.
(4) Artificial organic fiber: nail shell (crab shell) fiber, seaweed fiber, and the like.
2. Synthetic fiber synthetic fiber, which accounts for the vast majority of chemical fiber, is a fiber obtained by artificially synthesizing an organic polymer from a natural small molecule compound. Including polyester fiber, polyamide fiber, polyacrylonitrile fiber and other varieties.
(1) Polyester fiber: refers to polyester fiber, also known as Dacron, Terylene, Dylon, etc. (2) Polyamide fiber: refers to nylon fiber, also known as nylon, nylon, capron, etc. (3) Polyacrylonitrile fiber : refers to acrylic fiber, also known as aramid, cashmere, Axel, etc. (4) polyvinyl alcohol fiber: refers to vinylon fiber, also known as vinylon, wonderful fiber, etc. (5) polyvinyl chloride fiber: refers to polyvinyl chloride fiber, also known as Tianmeilun, Polyamide, etc. (6) Polypropylene fiber: refers to polypropylene fiber, also known as PARON (7) Polyurethane fiber: refers to spandex fiber, also known as elastic fiber, spandex fiber, etc. (8) Other fibers: including aramid 1414, fluorocarbon, carbon fiber, etc.
Desay shoes for mens boots. A wholecut oxford is the most formal of the three shoes. As decorative features are added such as a cap toe or brogue, then it`s going to dial down the formality of the shoe.
Oxfords are formal shoes distinguished by its closed lacing system. What this means is that the two sides of the leather upper that are drawn together by the laces are sewn under the front part of the shoes (vamp).
Black oxfords are pretty much the most formal pair of shoes a man can own, besides opera pumps.
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