If it is cashmere and wool, then how do you distinguish it? "Cashmere and wool mixed the most difficult to distinguish the content, which has a number of roots." The staff said that a total of 1500, after the number of see Look at the number of cashmere and wool inside, and then calculate according to the formula. In order to avoid uneven distribution of wool and cashmere in the sample, this work is generally done by three individuals. “There are counts from the top, counts from the bottom, and counts from the middle. The rate will be high," the staff said. Burning through the odor will be able to determine the composition through the microscope, cashmere and wool can be distinguished, and the rest of the ingredients can be burned first, through the smell to determine what is probably inside. “The cashmere and wool that you have brought have been tested. There is no cashmere inside. There is only wool.†The next day, the reporter once again came to the Qingdao Textile Fiber Inspection Institute. The staff member said that after testing the two, The second step is burning. The staff first disassembled the removed sample into one, then twisted the bundle into a bundle and picked it up with a lighter. After the burn, the staff smelled and then licked it with their hands. "We often do this kind of testing. Some materials can be smelled by burning out the odor." The staff said that after the burning of cotton and linen is burned paper odor; hair after burning a class of Is the taste of hair; chemical fiber class will have a special smell. According to reports, even after the burn, if there is a ball, it means that there is chemical fiber inside. Testing a cashmere sweater takes 3 days to test this step is the most troublesome. After sampling by the staff, the sample was weighed and then 1 gram was taken in a beaker. The inside wool was first dissolved with sodium hypochlorite. The whole process took half an hour. The remaining sample after dissolution was re-dissolved with other preparations. After the staff removed the remaining sample from the beaker, the sodium hypochlorite was washed off with water. In order to prevent the sample from containing moisture, the rinsed sample must be baked in the oven for 4 to 10 hours. According to the staff, there are three kinds of chemical fiber, nylon, acrylic and polyester fiber, but these three kinds of odors are more difficult to distinguish, so they can only be detected with chemical agents. However, after the staff put 80% formic acid, there was no change in the fiber that was stirred for half an hour. "In this way, we must repeat the previous steps, and then put in other chemical agents." The staff member said that dimethylformamide is specifically dissolved acrylic, 98% of the sulfuric acid is dissolved in polyester fiber, in uncertainty inside After the ingredients have been tested in the same way, until all the dissolved. "A cashmere sweater needs 3 working days from the start to the completion of the test." The staff member said that before each dissolution, the weight of the sample was weighed and the specific content was calculated based on the weight of each component. The results measured six, 4 failed after 5 working days of testing, September 15, 6 cashmere products test results released, only two qualified, the remaining 4 unqualified cashmere products are signs on Marked with "Teng Teng" brand anti-pilling cashmere knee pads, cashmere products, cashmere products, "Erna" brand cashmere blend shirt and "velvet slave" brand cashmere sweater. Among the 4 unsuitable cashmere products, the "Cashmere" brand anti-pilling cashmere knee pads are marked with cashmere 65%, but none of the cashmere in the test results. The cashmere product label on the cashmere brand is 92% cashmere, but the actual test result is 38.2% viscose, 38.1% wool, and no cashmere. Similarly, on the label, the "Erna" brand cashmere-blend sweater with 80% cashmere content and the cashmere slave cashmere sweater with 70% cashmere content are also not included in the cashmere composition. "Nana" brand cashmere blend shirt contains acrylic fiber 58.7%, viscose fiber 41.3%, and even no wool. The cashmere sweater should be how to choose the first is to look at the price, the price of cashmere sweater is not cheap, usually in a few hundred dollars, a thousand dollars, too cheap cashmere sweater is recommended that the public do not buy. Second, look at the clothes sign. The most important thing to look for is to exclude fake cashmere sweaters that use cashmere as cashmere. Although it is not necessarily a cashmere sweater that is marked with pure cashmere, the real cashmere sweater will clearly indicate the cashmere content. Again, look at the hand and weight. The cashmere sweater's fiber is very thin, so it feels very smooth, soft, and flexible, which is the real cashmere sweater. Weight is also the standard to distinguish between cashmere sweaters and sweaters, cashmere is lighter, and fine wool of the same size is heavier than cashmere. All kinds are for making shoes, each craft has been sorted for you to choose from Leather Fabric,Shoe Leather Fabric,Fabric Shoes Leather,Recycled Leather Fabric WENZHOU JOVAN INTERNATIONAL COMMERCIAL , https://www.wzjovan.com
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