We know that the objects packaged in plastic lotion pump bottles can be divided into solid, liquid and powder categories. The difference between the packaging characteristics of solid and liquid plastic bottles is a key point that the author wants to talk about today.

Regarding the characteristics and differences between solid and liquid plastic bottles, we will conduct targeted sub-analysis from each part. First of all, the mouth of the plastic bottle, the diameter of the solid plastic bottle is larger than that of the liquid plastic bottle, because the sealing performance of the solid product is relatively low, but the diameter of the solid product is often larger, which makes the solid plastic bottle convenient for the filling line of the product. It is necessary to improve the bottle mouth. We can see that the wide-mouth plastic bottles on the market are mainly used to package solid products. On the contrary, liquid plastic bottles have higher requirements for sealing performance, and for the convenience of drinking and filling, small-mouth plastic bottles will be used more in the liquid market.

Secondly, regarding the wall thickness and transparency of plastic bottles, solid plastic bottles do not have high requirements for the transparency and wall thickness of plastic bottles. However, liquid plastic bottles have high requirements for wall thickness. Liquid products have a certain pressure, and the plastic bottle packaging needs to withstand pressure. This requires liquid plastic bottles to reach a certain wall thickness to be able to withstand the pressure of the product. Liquid products also have requirements on the transparency of plastic bottles. Some liquid products are sensitive to light, so care must be taken in the design.