How to judge the quality of natural teether
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Babies to promote the growth of children's oral teeth has become an important concern of parents, want to order a high-quality teether stick or baby teether toys need to be strictly determined, the current silicone material occupies most of the maternal and child market, in the wearing, tableware, toys and other fields have been used.
Because the environmental safety of the material matches the safety needed by the baby, it has been paid attention to the use of different fields, so whether you order online or buy offline stores, what methods should you use to determine the quality standard of silicone dental gel?
1, at present, there are many materials similar to silicone on the Internet to show that the actual production material is rubber, vinyl, PVC, TPU and other rubber types, for consumers who do not know the silicone material fraud, so you must determine the silicone material when purchasing, whether it is safe and environmental protection of silicone, there are many ways to determine, from the texture, feel, feel, etc. Smell, burning, stretching and so on.
2, followed by food grade or ordinary glue, silicone products are also divided into different levels, for silicone dental glue routinely uses gas phase food grade silicone production customization, the main difference is that the material in the silicon molecular chain detail is different, the actual composition of the product leads to the life of the product and the use of the environment in all aspects of the performance is different, The way to determine it is to stretch the silicone molars to see if there is no white fog, if there is no white fog, it can not reach food grade.
3. Is it liquid or solid? Belongs to the difference in the production process, and the material form is different, silicone material is currently divided into liquid injection molding, solid molding, the difference between the two lies in the material and texture, the liquid texture is better, the appearance is more beautiful, the parting line is small, the product is naturally favored by consumers, but the production cost is higher, the solid state efficiency is high, the product feel is slightly lower, there is an obvious parting line, However, raw materials and production costs are low, more popular choice by the public!
4, whether to carry out secondary sulfurization, dental products need to meet ROHS, FDA or LFGB export standards are required to carry out secondary sulfurization to product compounds in high temperature vulcanization out of the body, to achieve high purity silicon molecular composition products, so in the custom processing of silicone dental manufacturers if not in accordance with this requirement to do, it is difficult to pass the test and certification!
5, the appearance and quality of the manufacturer to determine the product, its source material belongs to what brand, manufacturer information and brand awareness, but the most important thing here must be, silicone source manufacturers in production in accordance with the standardization of production and processing!