What are the common blister material

PET (polyethylene terephthalate) hard sheet. PVC (polyvinyl chloride) hard sheet. PS (polystyrene) hard sheet, PS hard sheet low density, poor toughness, easy to burn, burning will produce styrene gas (a harmful gas), so it is generally used to produce a variety of industrial blister tray. PVC hard sheet has moderate toughness and is not easy to burn. When burning, chlorine gas will be generated, which will have a certain impact on the environment. PVC is easy to heat and seal. Sealing machine and high frequency machine can be used to seal the edge. It is the main raw material for the production of transparent plastic products. Blister is a kind of plastic processing technology. The main principle is to heat the flat plastic hard sheet to soften, and then use vacuum adsorption on the surface of the mold, and then form after cooling. It is widely used in plastic packaging, lighting, advertising, decoration and other industries.

How to check the quality of cosmetic packaging materials

The main control indicators include hand feeling index, filling machine requirements, transportation vibration requirements, air tightness prevention

Cosmetic packaging material classification?

What are the main cosmetic packaging materials? How is it classified?? For example, plastic bottles are also one of the cosmetic packaging materials. Cosmetic packaging material is a kind of packaging material industry, divided into the whole packaging material and part of the packaging material. The overall packaging materials are usually provided by cosmetics manufacturers with drawings or general requirements and submitted to packaging materials manufacturers for production, while some packaging materials are divided into more subtle, more specific situations and requirements, and are divided into local printing, bottle packaging materials and bottle body packaging materials. Depending on the type of cosmetic packaging, you can also outsource some small accessories. The cosmetics packaging material industry and cosmetics are closely linked. Nowadays, the overall homogeneity of the cosmetics industry has enhanced the value of packaging materials. In recent years, industry insiders have also called for low-carbon and green packaging material services. 1---PET? Its main characteristics are high air tightness, good compressive strength, high water resistance and very transparent. Its transparency is as high as 95%, which is higher than that of other commonly used plastic packaging containers, but it is not heat resistant. It is often used in food, beverage bottles and cosmetic packaging materials. It is precisely because of its high air tightness and the packaging container has no hairs and pores, so it is used to make a container for packaging alcohol. 2---HDPE The Chinese name is high-density polyethylene, which is commonly known as high-density PE. It is the second material on the international material label number. Its main characteristic is good acid and alkali resistance. The products made from it are translucent, heat resistance is not very good, use it to make packaging containers hairy pores. It is often used in chemical packaging containers such as pharmaceutical bottles and cosmetic bottles. 3---PVC The Chinese name is polyvinyl chloride, which is No. 3 material on the international material label number, Its main characteristics are transparent and heat-resistant. Before the advent of early PET, it replaced PET and was used in mineral water, fruit juice and other beverages. At present, its main function is to manufacture water pipes for building materials and enameled wires for external lines. The container made of it will have pores, so it is not suitable to use it to hold wine. 4---LDPE The Chinese name is low-density polyethylene, which is also known as low-density PE. It is No. 4 material on the international material label number. Because of its low molecular density, it is softer than HDPE. The products processed with it are translucent, heat-resistant and have fine pores, but it has good acid and alkali resistance. Containers made of this material are often used in chemical industries such as facial cleanser, salad, glue bottle, cosmetic bottle hose, etc. 5---PP The Chinese name polypropylene is No. 5 material on the international material label number. It is a high-density material. The products processed with it are translucent, heat-resistant, impact-resistant, acid and alkali-resistant, but have fine pores. It is commonly used in hot filling packaging of food, microwave cooking tableware, can hold high temperature food and general household face plate, mouthwash cup and other daily necessities microwave-grade processing such as: measuring cup. 6---PS The Chinese name is polystyrene, which is No. 6 material on the international label material number. The products processed with it are transparent, well sealed, but fragile and heat-resistant. It is commonly used in sealed cans, Processing of food boxes. 7---PC It is in the international label material number is seven material, with its processing products made of transparent, high heat resistance, not easy to break. It is often used in the processing of milk bottles, distillation barrels, heat-resistant barrels and medicine bottles.

Cosmetic packaging materials commonly used materials

1. ABS: ABS is an engineering plastic, not environmentally friendly, high hardness, can not be directly in contact with cosmetics, food, in acrylic cosmetics packaging materials are generally the inner cover, shoulder cover material. The color is yellow or milky white. 2. PP, PE: PP and PE are environmentally friendly materials that can be directly in contact with cosmetics and food. They are the main materials for filling organic skin care products. The materials are white and translucent. According to different molecular structure, can achieve three different degrees of soft and hard. 3. PET: PET is an environmentally friendly material that can be directly in contact with cosmetics and food. It is the main material for filling organic skin care products. PET is soft and its natural color is transparent. 4. PCTA, PETG: PCTA and PETG are environmentally friendly materials that can be directly in contact with cosmetics and food. They are the main materials for filling organic skin care products. The materials are soft and transparent. PCTA and PETG are soft and easy to scratch. And it is not commonly used to print more often. 5,: AS hardness is not high, crisp (knock when there is a crisp sound), transparent color, and the background color blue can be directly in contact with cosmetics, food, in ordinary lotion bottles, vacuum bottles are generally the material of the bottle body, can also be made of small capacity cream bottles. It is transparent. 6. Acrylic: The material is hard, transparent, and the background color is white. And acrylic in order to maintain a transparent texture is often sprayed inside the outer bottle, or colored during injection molding.