The molding material of the container

The most common forming methods are: injection molding, blow molding, injection stretch blow molding.
2 container molding methods:  wholesale cosmetic bags  molding, blow molding, injection stretch blow molding.
3 surface decoration and post-processing effects: a container after surface treatment can printing, hot stamping, labeling (IML also)
4 Scope of application: inner timber with cosmetics good compatibility. Suitable cover, inside cover, liner, sealing film, plastic plugs, shampoo bottles, etc. But do not solvent-based nail polish, to water containers and other products.
Injection molding  small cosmetic bag  structure design must focus on the appearance of plastic products will affect the quality of the content: gate location, type of position, the wall thickness.

plastic containers

For the transport of goods for export packaging plastic containers , according to SN/T0271-93 " inspection of export commodities transport packaging plastic containers " provides test and reference GB/T13508-92 " polyethylene blow barrel" execution. ( 1 ) Appearance: Barrel symmetrical parts of the wall thickness ratio not greater than 2:1 , no blisters, no adverse plasticizers , wall , flat and smooth mouthpiece , the bubble diameter of not more than 2mm of more than two , black spots impurities length greater than 4mm, bucket mouth piece coincides closely interchangeability . ( 2 ) Performance test: open plastic containers must be vertical impact drop test , stacking test , seal test . Closed plastic containers must be vertical impact drop test , stacking test , tightness test , hydraulic test . Mounted handle and integral handle plastic containers hanging test needs to be done . ① vertical impact drop test : The specimen at -18 ℃ conditions. Drop height : If the water as an alternative to the proposed density is not greater than 1.2 installed product is 0.8m; intends to install the product density greater than 1.2, the drop height was 0.67m × density. Drop parts See SN/T0271 " inspection of export commodities transport packaging plastic containers ." ② Stacking test : Test temperature 40 ℃, stacking time seven days .