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ina. Many international making promotional gift like the custom silicone wristband run a factory in China. Preferential policies and low labor cost is the main reason. A Chinese silicone wristband producing factory usually make the wristband from silicone but not producing silicone. They purchase raw material from all over the world so that make the silicone wristband low price. So Make In China is cheap and of high quatity as well. Guanddong and Zhejiang province is the two place famous for custom silicone wristband. Near 200 silicone wristband making factory located in Guanddong province. They provide tons of wristbands every day of all kinds like debossed, embossed and printed wristband. Silk screen printing is applied for printed silicone bracelets. Modern screen printing technology is making screen by photoengraving method using photosensitive material ,oil paintings, prints, posters, name card, binding covers, packaging, commodity, textile printing and dyeing, glass and metal plane carrier. And also this is the printing method for the printed silicone bracelets. eal silicone bracelet touches smoothly with special surface treatment and easily stick with dust , hair and other impurities. Third, when it burned wicustomize lanyardth fire, the false silicone bracelet will come up with the black material on the edge while the true one shows white powder. And final, tell a reliable method to clean the bracelets. Get it soak in warm water for 3-5min, rub a few and add the detergent if necessary. Then all done after drying by air. After proper dewatering , the silica gel mSiO2?nH2O become a porous mass that is of different particle size. This is so called the silicone. The silicone has the open vesicular structure , large specific surface. So it can absorb many substances as a good desiccant, adsorbent and catalyst carrier. Adsorption of the silicone is mainly the physical one that can be regenerated and good for repeated use. Let the silica gel soak in the cobalt dichloride solution then get it dried and activated , will become the allochroic silica gel. It will tracustomize lanyardnsfer from blue to red color when absorb water. Changes in color shows the degree of water absorption and whether need the regeneration treatment.