Is the only way to keep the thermos cup insulation lunch box warm can only be achieved by vacuuming?(two)

However, many brands and manufacturers in the market will develop some special-shaped or square products in order to cater to the market, hoping to achieve the effect of heat preservation, and even some manufacturers want to produce plastic thermos cup products, but the plastic cannot be vacuumized, so how to solve these?

For example, square plastic incubators, square stainless steel incubators, inverted trapezoidal thermal insulation appliances, or simply the opposite sex, how to achieve it when vacuuming cannot be performed?

The method I am going to talk about is actually used 20 years ago.It was only later that as the vacuuming technology became more and more mature, the processing cost became lower and lower, and the production efficiency became higher and higher, and was gradually abandoned by many manufacturers.

This is the filling of foamablePolylon in the interlayer of these products that are difficult to produce by vacuuming.Polylon itself has a good thermal insulation effect, and the injection method can be used to add liquid polylon into the product interlayer by pressure injection.After waiting for foaming, the sealing process is completed. Usually, the injection-type products are mainly shaped.Another is to use die-casting method to say that Poly Dragon is formed by high-temperature die-casting, which is attached to the inner liner of the product shell, and then sealed in the interlayer.

The thicker the thickness of Poly Dragon, the better the thermal insulation effect will be.This is why the wall thickness of some square insulation products is usually very thick.

Dongguan Zhanyi Commodity Technology Co., Ltd. specializes in the production of metal cups, plastic cups, coffee cups, suction mug, lunch boxes, food jar, travel mugs, portable water bottles, sports bottles, home life desktop trash cans, thermos bottles, etc.These products are all our annual exports, and are recognized and loved by the US, Europe, Australia, Japan, South Korea, Taiwan, Hong Kong and other consumers. Support for small quantity order, fast customization.