First, the collection and preservation of feathers 1, collection. The method of hair removal includes dry pull and wet pull, and dry pull is preferred. However, in most parts of China, wet extraction is used. The wet drawn hair has large moisture content and needs to be dried before it can be preserved. Attention must be paid to the following points when collecting: All kinds of flock, fluff, and large feathers are collected, especially the goose and duck hairs are the most valuable parts of the feathers and must not be missed; The characters and uses are different, so chickens, ducks, and goose feathers must not be mixed with each other. To ensure the quality of the feathers, the legs, viscera, and excrement must not be mixed together during plucking. 2, drying. When drying the feathers, the following points should be observed: When drying the feathers, choose a sheltered, sunny and clean place for drying. Do not mix in impurities. The dried feathers should be collected in time so that they will not be blown away by the wind and get wet by the dew at night. . 3, preservation. In order to avoid feather erosion and insect infestation, care should be taken when storing: Dried feathers should be stored in a monotonous library and should always be checked for moisture. If moldy or special smells are found, they should be re-aired; not suitable for rainy or windy days. When drying, it can be scattered in the room to dry; there should be someone responsible for collecting, drying, preservation and other work. Second, the feather processing method 1, wind election. The feathers are poured into the shaker in batches, the blower is turned on, the feathers are fluttering in the box, and the proportions of the debris such as sheet hair, feathers, sand and foot skin are different, and they are respectively dropped into the holding box, and then collected and solved separately. . In order to ensure the quality, the wind speed in the bellows should be kept uniform. After that, the selected feathers will be sent to the testing room. 2, check the net. After the feathers are selected, the hairy stems and stray hairs should be checked again, and a sample check should be made to see if the ash content and the cashmere content meet the required standards. 3, and heap. After the inspection of the net feathers, according to the character composition, adjust and pile, so that the amount of cashmere to the finished product standards. 4, packaging. After the piled feathers are sampled and recalibrated, they can be poured into the baler and packaged (about 165 kg per bag). After that, they are taken out, and the headers are sewed and numbered. The scales are finished products. Imported Premium White Carbon Black Silica black is the general name of white powder X-ray amorphous silica and silicate products, mainly refers to precipitated silicon dioxide, gas phase silicon dioxide and ultra-fine silicon dioxide gel, including powder synthesis of aluminum silicate and calcium silicate, etc. Silica is porous and its composition can be expressed as SiO2·nH2O, where nH2O is in the form of surface hydroxyl groups. Soluble in caustic soda and hydrofluoric acid, insoluble in water, solvents and acids (except hydrofluoric acid). High temperature resistance, non-combustion, tasteless, odorless, with good electrical insulation. Imported Premium White Carbon Black,Special Auxiliaries For Thermoplastics,Surface Modification Treatment,Premium White Carbon Black Xingbang High Molecular Materials Co., Ltd. , https://www.chemicaladditive.com
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