The so-called thermos bottle packaging is actually what people in the industry call baking flowers. To put it bluntly, it is to bake the water cup at high temperature and bake the flower pattern (pattern) into the water cup.
There are several processes required to bake a water cup. The first step is printing paper. To put it simply, flower paper is a very thin layer of film, which is called acrylic emulsion butyral film in technical terms. The pattern design to be made on the water cup is printed on the film. flower prerequisites.
The decal paper packaging is printed, and then comes the second step, the decal paper. This step is very simple, that is, paste the finished flower paper on the water glass. After the water cup is decaled, the next step is to bake the flowers. This step is simpler. Put the water cup with the decal on it into the industrial kiln and bake it at high temperature.
After the thermos cup has been baked, it also completes all the process of packaging and printing pattern design. But what needs to be pointed out is that both the layer of decal paper and the various color pastes printed on the film are non-toxic and harmless. The film of decal paper is called acrylic emulsion butyral film, which is made of butyral and ethanol as raw materials. The various colors printed on the film are all special color pastes for heat insulation, that is, various Things like soil, rocks, etc.
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