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Paper pulp and its relative products manufacturer |
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| Release time:2013-05-07 Source:admin Reads: | |
| The paper cardboard is mostly made from pulp which is made from wood; they can be made into different jewelry cards. Fiber is a rope or string used as a component of composite materials, or matted into sheets to make products such as paper or felt. Fibers are often used in the manufacture of other materials. The strongest engineering materials are generally made as fibers, for example carbon fiber and Ultra-high-molecular-weight polyethylene. Synthetic fibers can often be produced very cheaply and in large amounts compared to natural fibers, but for clothing natural fibers can give some benefits, such as comfort, over their synthetic counterparts. Synthetic generally come from synthetic materials such as petrochemicals but some types of synthetic fibers are manufactured from natural cellulose, including rayon, modal, and Lioncel. Cellulose-based fibers are of two types, regenerated or pure cellulose such as from the cupro-ammonium process and modified cellulose such as the cellulose acetates. Fiber classification in reinforced plastics falls into two classes: short fibers, also known as discontinuous fibers. Microfibers in textiles refer to sub-denier fiber. Jewelry cards are two measurements of fiber yield based on weight and length. If the fiber density is known you also have a fiber diameter, otherwise it is simpler to measure diameters in micrometers. Microfibers in technical fibers refer to ultra fine fibers often used in filtration. Newer fiber designs include extruding fiber that splits into multiple finer fibers. Most synthetic fibers are round in cross-section, but special designs can be hollow, oval, star-shaped or jewelry cards. The latter design provides more optically reflective properties. Synthetic textile fibers are often crimped to provide bulk in a woven, non woven or knitted structure. Fiber surfaces can also be dull or bright. Dull surfaces reflect more light while bright tends to transmit light and make the fiber more transparent. |
