Summary:If you want to know the quality of a plastic bottle, you can judge it according to its forming method, material, transparency, etc. of Cosmetic PE bot...
If you want to know the quality of a plastic bottle, you can judge it according to its forming method, material, transparency, etc. of Cosmetic PE bottles
Plastic bottles are mainly made of polyethylene or polypropylene and other materials with the addition of various organic solvents. Plastic bottles are widely used polyester (PET), polyethylene (PE), polypropylene (PP) as raw materials, after adding the corresponding organic solvent, after high temperature heating, through plastic mold through blow molding, extrusion blowing, or injection molding plastic containers.
Plastic bottles are blow-molded under a certain temperature and pressure by filling a gun mold. They can be processed from preforms, or can be directly processed by an injection-blow-molding machine.
Mainly used for liquid or solid disposable plastic packaging containers for beverages, food, pickles, honey, dried fruits, edible oil, agricultural and veterinary drugs, etc. Plastic bottles have the characteristics of being unbreakable, low cost, high transparency, and food-grade raw materials.
First observe whether the plastic bottle body is crystal clear, uniform in color, no magazines visible to the naked eye, no obvious color difference, bubbles, stretch marks, stiff material, lack of material, overflow, dark ring, stain, white fog; smooth surface, no Foreign matter, pollution, and no scratches on the inner and outer walls; the second is to observe that the end face of the plastic bottle should be flat, the thread should be smooth and not chipped, the crystal bottle mouth should be uniformly crystalline, and the burr of the parting line should not exceed 0.13mm; after Z, observe the plastic The material opening at the bottom of the bottle does not exceed 1.5mm, no pinholes, dead whites, and stretch marks are allowed, and the wire drawing is less than 5mm.
From the transparency, it can be seen that the quality of the material used in plastic bottles is good or not. The higher the transparency, and the thickness is quite good, then this is an excellent plastic bottle.
Judging whether the plastic bottle is good or bad is related to the material of the plastic bottle, the weight of the plastic bottle, etc.
The requirements for the performance of plastic bottles are getting higher and higher, and plastic bottles must meet the relevant national policy standards, which will pose a certain threat to our health. When choosing a plastic bottle, be sure to consider its durability, and have a more comprehensive understanding of their texture and raw materials.
Be sure to pay attention to these problems when choosing cosmetic PE bottles manufacturers, don't miss the details, because it is related to your safety.