? The main reasons for the disappearance of the words of printed silicone bracelets are as follows : 1.Printing ink . We all know that high quality products can be used for a long time . The same is true of the printing ink used for printing silicone bracelets . Custom promotional bracelets made of high quality printing ink can keep text for a long time . However custom promotional bracelets made of inferior printing ink can"t keep text for a long time . 2.Production process . Silk screen primetal carabiner clip keychainnting process of silicone rubber bracelet is very important. Whether the surface of the event wristbands is clean or not, the dirty surface of the club wristbands will lead to insufficient adsorption of printing ink , so the manufacturer will clean the surface of the silicone bracelet . 3.Silicone wristband rub with other objects . When we wear silicone bracelets , it will rub with other objects and the message and logo is stay on the surface of the custom promotional bracelets . As the number of times the bracelet rubs against with other objects increases . The words on the bracelet will fade away gradually . appear performance defects and practical function is reduced . Some customer are holding ready-made products for Soft-hardness comparison directly and then choose one of them . In nowadays the custom silicone bracelets is one of them. So how to choose the hardness for custom silicone bracelets . The choice of softness and hardness of silica gel will have different effects on the properties of different products . At present, the hardness of commonly used silica gel hand rings is between 40 degrees and 60 degrees and material with different hardness has certain difference . Fmetal carabiner clip keychainor example , the tensile rate of 40 degree materials will reach about 150% , and the tensile rate 60 degree materials can only reach about 80% . So in order to confirm the functionality of products , we have to test them . It is more difficult to produce high hardness silica gel hand rings . For the manufacturers of silica gel hand rings , the higher the hardness , the higher the defective rate of the products and the pulling force of the products will also be affected and will cause fracture phenomenon at any time . Therefore , we suggest that the hardness of the silica gel hand rings should not be too high .