How to solve the problem of PP/PS sheet blister

top leader produced PP plastic packaging products. 

pp sheet for Yogurt cups, jelly cups, sanitary cups for drinking water, soy milk cups, tofu boxes and other PP plastic packaging products made of thermoformed PP sheets are widely used in medicine, light industry, toys, food, tourism and other fields.

The main reason for polypropylene is that PP material is one of the lightest plastic varieties, with a density of only 0.89--0.91g/cm3, and the material cost is low; secondly, the price of raw materials is relatively cheap, the market has sufficient supply and is easy to purchase; in addition, the production technology is easy to master , the ingredients are simple and easy to process; the most important thing is that the production equipment is cheap.

How to solve the problem of PP/PS sheet blister

Causes and solutions for sheet blistering:

Heating too fast

① Reduce the heater temperature appropriately.

② Slow down the heating speed appropriately.

③ Increase the distance between the sheet and the heater appropriately to make the heater farther away from the sheet.

Uneven heating.

① Use baffles, air distribution hoods or screens to adjust the distribution of hot air so that all parts of the sheet are heated evenly.

② Check whether the heater and shielding net are damaged, and repair the damaged parts.

sale03@sdzlplastic.com