A little knowledge about packing materials

First, plastic material classification:

1, PET: belongs to the environmental protection material, can directly contact with cosmetics, food, is the main material of filling organic skin care products, PET material is soft, the natural color is transparent.

2, PP, PE: belong to environmental protection materials, can directly contact with cosmetics, food, is the main material of filling organic skin care products, the material color is white, translucent. Depending on the molecular structure, it can reach three different degrees of softness and hardness.

3, AS: the hardness is not high, more brittle (when striking a crisp sound), transparent color, and the background color blue can be directly in contact with cosmetics, food, in ordinary emulsion bottles, vacuum bottles are generally the material of the bottle, but also can make a small volume of cream bottles. It is transparent.

4. PCTA and PETG are environmentally friendly materials, which can directly contact with cosmetics and food. They are the main materials for filling organic skin care products. The materials are soft and transparent. Not commonly used spray, multi-purpose printing.

5, acrylic: the material is hard, the transparency is high, and the background color is white. And acrylic in order to maintain the transparent texture often into the outer bottle spray.

 6, ABS: belongs to engineering plastic, not environmentally friendly, high hardness, can not directly contact with cosmetics, food, in the cosmetic packaging materials are generally the outer cover, shoulder cover material. The color is yellowish or cream white.

Second, the type of packaging bottle:

1, vacuum bottle: lid, shoulder sleeve, vacuum pump, piston. Use with air pressure.

The pump head is generally a chicken beak or a duck beak flat head, the vacuum bottle tightness is high, the vacuum pump will move up with the reduction of the material, and the leakage will affect a certain aesthetic.

2, emulsion bottle: by the lid, shoulder sleeve, emulsion pump. Most of them have straw inside.

Divided into single layer and multi-layer bottle type general outside acrylic, inside PP material. The lid is ABS on the outside acrylic.

3, perfume bottle: mostly for the lid, spray head, bottle body, straw.

Large capacity is common for glass, because the storage time is longer. There's also an interior that's glass and an exterior that's aluminum. PP bottles are suitable for small capacity short-term storage.

4, cream bottle: there are outer cover, outer bottle, inner liner, gasket.

Acrylic double cream bottle: bottle body acrylic, cap, gasket PP. Acrylic transparency is higher, the price is expensive.

PP double cream bottle: bottle body, lid, PP material. Poor permeability suitable for color design.

PET single-layer bottle, PP, PE, PS and other materials. It can be combined with external anodized aluminum, lid anodized aluminum and other related materials.

5, blow molding bottle: the material is mostly PET material. The cover is divided into three kinds: screw cover, flip cover and Qianqiu cover. Blow molding is the direct blowing of the bottle embryo.

It is characterized by a convex point at the bottom of the bottle. It's brighter in the light.

6, blowing bottle: the material is mostly PP or PE. The lid is divided into three kinds: Qianqiu lid, clamshell lid and screw lid. Blow injection bottle is a process that combines blow injection and blow molding into one, and only one mold is required. It is characterized by a bonded thread at the bottom of the bottle.

7, aluminum-plastic hose: is the most PE material outside is aluminum packaging, commonly used process offset printing, screen printing, hot printing.

8, all plastic hose: commonly used PE, PP, PVC material, and first pull out the hose and then cut, commonly used process offset printing, screen printing, hot printing.