Some properties of blister materials

1. PVC blister material has high 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 seal. Sealing machine and high-frequency edge sealing can be used. It is the main raw material for the production of transparent blister products. PVC sheet is a widely used and popular material. PVC film can be divided into two types: environmental protection and non-environmental protection. It can be made into transparent, color, anti-static, gold-plated, flocking and other blister packaging products. The main features are high transparency, good surface gloss, few crystal points, small water lines, wide application, strong impact resistance, and easy molding. The products are widely used in toys, food, electronic products, medicine, electrical appliances, gifts, cosmetics, stationery, etc. Product packaging.

2. PS hard sheet has low density, poor toughness, easy to burn, and will produce styrene gas (a harmful gas) when burning, so it is generally used to produce various industrial blister trays. PS sheet is a new type of environmentally friendly packaging material developed in recent years. With its excellent thermoforming performance, good environmental protection performance and hygienic performance, it is widely used in medicine, food, toys, and electronics.

Some properties of blister materials

3. PET hard sheet has good toughness and is a new material developed in recent years. With its excellent toughness, high strength, high transparency, and recyclability, it is easy to burn and does not produce harmful gases when burning. It is an environmentally friendly material and gradually banned PVC, but the price is high. It is suitable for high-end blister products. The blister shells of European and American countries generally require the use of PET materials, but its thermal melting point is relatively high, which brings great difficulties to high-frequency packaging.

Fourth, PETG material is to solve the problem of high thermal melting point of PET material. People compound a layer of PVC film on the surface of PET, named PETG, but the price is higher. Mainly used in electronics, food, toys, color box windows, collar support, footwear packaging, etc. Its advantages are as follows:

1. It has excellent transparency and smoothness, and has a good display effect.

2. Excellent surface decoration performance, can be printed without surface treatment, easy to emboss patterns, easy to metal treatment (vacuum metal plating layer)

3. Has good mechanical strength.

4. Good barrier properties to oxygen and water vapor.

5. Good chemical resistance, can withstand the erosion of various chemical substances.

6. It is non-toxic and has reliable hygienic performance. It can be used for the packaging of food, medicine and medical equipment, and can be sterilized by gamma rays.

7. It has good adaptability to environmental protection, and can be recycled and reused economically and conveniently; when the waste is incinerated, it does not produce harmful substances that endanger the environment. Such sheets are considered to be an ideal packaging material in compliance with (ROSH) environmental protection requirements.

5. PP sheet is made of polypropylene resin as the main raw material, adding various process color masterbatches, toughening agents and brightening agents, through mixing, plasticizing extrusion, three-roll calendering, cooling, traction and winding processes production. PP blister material has the characteristics of non-toxic, odorless, hygienic, high mechanical strength and good barrier properties, and can be used for packaging in industry, agriculture, fruit and other industries. The tray made of PP anti-skid sheet has a smooth and beautiful surface, which is very popular among users. PP sheet is also suitable for the packaging of high cold-resistant frozen foods, such as ice cream boxes, dumpling boxes, dumpling boxes, etc.

PP blister has: environmental protection, beautiful appearance, silk screen printing, co-printing, bronzing, high temperature resistance, low temperature resistance, high transparency, bending resistance and easy folding, the product meets the food test standard (or not required), and can be microwaved.

Disadvantages of blister material PP: low dimensional accuracy, insufficient rigidity, poor weather resistance, easy to produce “copper damage”, it has the phenomenon of post-shrinkage, and after demolding, it is easy to age, become brittle, and easy to deform.


Post time: Apr-25-2022

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