comes. That is the silk print. The advantage of silk print is that simple equipment, easy operation, easy printing platemaking, low cost and strong adaptability required. If the logo is of more that one color and the colors stand together , then the overprint works. In the printing and dyebottle openering industry, several colors need to be printed on the product , that is so –called overprint. The overprint color sequence should be made according to the features of the inks and the Superimposition rule so as to make the color of the printing close to the original. A uv silicone bracelet can transfer its color darker under sunshine when absorbing uv light. It is not only with good looking appearance but also indicating the strength of the uv index. So some uv silicone bracelets made as the indication with the ruler of levels of index. Wearing on the wrist to avoid long time staying under strong uv. So what makes it uv transfer ? Tbottle openerhe answer is the UV phosphor which usd uv energy to open the sensitive molecular bond and make it jump from low energy to high energy level There will be a change from visible light to visible light, resulting in the changing color from light to dark. It become a uv silicone bracelet when the UV phosphor is put into the silicone mass and produce it a band.