Blister industry terminology

Blister: A plastic processing technology. The main principle is to heat the flat plastic hard sheet to soften it, then use vacuum to absorb it on the mold surface and cool it to form. It is widely used in plastic packaging, lighting, advertising, decoration and other industries.

 Blister packaging: the general term used to produce plastic products using blister technology and package the products with corresponding equipment. Blister packaging products mainly include: blister, tray, blister box, synonyms are: vacuum cover, blister, etc. Blister packaging equipment mainly includes: blister forming machine, punch, sealing machine, high frequency machine, folding machine. Packaging products formed by packaging can be divided into: plug-in cards, blister cards, double blister, half blister, double-fold blister, tri-fold blister, etc.

Bubble shell: The transparent plastic hard sheet is made into a transparent plastic with a specific convex shape by a blister process, and it is covered on the surface of the product to protect and beautify the product. Also known as blister, vacuum hood, plastic mask. According to the different forms of the blister, it can be divided into: single blister, double blister, card blister and blister card blister

Blister box: It is a kind of blister product with a lid and a bottom. The bottom and lid are connected together called a half-fold blister box, and the bottom and lid separated are called a blister box with a bottom lid.

 Blister tray: also called plastic inner tray, the plastic hard piece is made into plastic with a specific groove by the blister process, and the product is placed in the groove to protect and beautify the product.

Flocking inner tray: It is a kind of blister tray using special materials, and a layer of velvet material is glued to the surface of ordinary plastic hard sheets, so that the surface of the tray has a velvet texture, which is used to improve the quality of packaging.

Antistatic tray: It is a blister tray made of a special material, and the surface resistance of the material is less than 10 to the 11th power ohm. Mainly used for blister trays of electronic and IT products.

Blister mold: The mold used in the production of blister molding, the cost is the plaster mold, followed by the electroplated copper mold, and the most expensive is the aluminum mold. The mold is drilled with small holes, which are used for vacuum absorption of the heated hard piece to form a blister product.

Blister molding: It is what we often talk about as blister. A blister molding machine is used to adsorb the heated and softened plastic hard sheet on the surface of the mold. After cooling, it forms a concave-convex shape of plastic.

blister cutting: After blister molding, the plastic products are cut into individual products by punching the large sheets with a knife. Also called blanking, cutting, die cutting, etc.

Folding: One of the blister packaging products is called card packaging. The three sides of the blister need to be folded to the back with a folding machine, so that in the next packaging process, the paper card is inserted into the folding to form a card packaging .

Pull line: some undesirable line protrusions (not on the mold) produced during the production of blister molding, need to re-modify the mold (reduce the height and increase the roundness) and increase the additional pressure mold (we call it the upper mold) To solve it. When the cable is too large, it is regarded as a defective product and cannot be used for high-end blister packaging. However, in the field of parts turnover trays, as long as the cable is arranged neatly and does not affect the use function, it should be regarded as a qualified product. Pull string is also called: Laqiu, cramps and so on.

Scratches: There are scratch marks on the blister products, especially on the transparent blister. If the marks are too long or too large, the blister will become a defective product and cannot be used for high-end packaging.

Crystal point: In the production process of blister sheet, due to the fine dust in the air, falling on the heated plastic material, a kind of transparent flaw, especially in the production process of transparent blister sheet, this kind of flaw If it is too large or too much, it is regarded as defective.

Bubbles: In the production process of blister sheet, the heated plastic material contains air, so that the finished sheet produced contains bubbles, especially in the production process of transparent blister sheet, the bubbles are too large. When it is too much, it is regarded as a defective product.

Water ripples: In the production process of blister sheet, due to different materials and processing techniques, the surface of the finished sheet produced has water ripples, especially in the production process of transparent blister sheet, this kind of water ripples are too large If it is too much, it is regarded as defective. In general, the thicker the sheet, the more obvious the water ripples. Qualified PET materials rarely have water ripples, but most PVCs have water ripples.

Heat sealing: It is a kind of blister packaging process. The paper card coated with blister oil on the surface is heat-sealed with the blister with a sealing machine to form a blister card package.

High-frequency sealing: It is a kind of blister packaging process that uses a high-frequency machine to generate high frequency to bond the blister and the blister together to form a double blister package.

Ultrasonic sealing: It is a kind of blister packaging process that uses an ultrasonic machine to generate ultrasonic waves to bond the blister and the blister together to form a double blister package. Unlike high-frequency sealing, ultrasonic waves can not only seal PVC and PETG. The material can also be sealed with PET material, and there is no electromagnetic damage to the packaged product, which is especially suitable for the packaging of electronic products; the disadvantage is that the ultrasonic edge sealing can only be spaced dots, and generally only one straight edge is sealed at a time.

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