Explanation Of Vacuum Forming Terminology

Blister: a plastic processing technology that mainly involves heating and softening flat plastic hard sheets, using vacuum adsorption to attach them to the surface of molds, cooling and forming them. It is widely used in industries such as plastic packaging, lighting, advertising, and decoration. Blister packaging: a general term for the production of plastic products using vacuum forming technology and the packaging of the products with corresponding equipment. Blister packaging products mainly include: blister, tray, blister box, synonymous with: vacuum hood, blister, etc.

The vacuum packaging equipment mainly includes: vacuum forming machine, punching machine, sealing machine, high-frequency machine, and folding machine. The packaging products formed by packaging can be divided into: card insertion, card suction, double bubble shell, half bubble shell, folded bubble shell, triple folded bubble shell, etc.

Bubble shell: Using vacuum forming technology to make transparent plastic hard sheets into specific protruding shapes of transparent plastic, covering the surface of the product to protect and beautify the product. Also known as bubble hood, vacuum hood, plastic face mask. Depending on the form of the bubble shell, It can also be divided into: single bubble shell, double bubble shell, card insertion bubble shell, and card suction bubble shell vacuum forming box: it is a type of vacuum forming product with a lid and a bottom. The one with the bottom and the lid connected together is called a folded vacuum forming box, and the one with the bottom and the lid separated is called a sky bottom lid vacuum forming box. Blister tray: also known as plastic inner tray, uses vacuum forming technology to make plastic hard sheets into specific grooves, placing products in the grooves to protect and beautify the products.

Plush Inner Tray: It is a type of vacuum formed tray made of special materials, in which a layer of velvet material is attached to the surface of ordinary plastic hard sheets, giving the tray a velvet like feel and improving the quality of packaging products. Anti static tray: It is a vacuum formed tray made of special materials, with a surface resistance value of less than 10 ^ 11 ohms. Mainly used for vacuum formed trays of electronic and IT products. Vacuum forming mold: The mold used in vacuum forming production has the lowest cost of gypsum mold, followed by electroplated copper mold, and the most expensive is aluminum mold. The mold is drilled with small holes for vacuum adsorption and heating of hard sheets to form vacuum formed products.

Vacuum forming: It is commonly referred to as vacuum forming, which uses a vacuum forming machine to adsorb heated and softened plastic hard sheets onto the surface of the mold, and after cooling, forms a concave convex shape of plastic. Vacuum cutting: After vacuum forming, plastic products are punched and large sheets are cut into individual products using a cutting die. Also known as cutting, cutting, die-cutting, etc. Folding: There is a type of blister packaging called card insertion packaging, which requires folding the three edges of the blister to the back with a folding machine, so that in the next packaging process, the paper card can be inserted into the folding edge to form card insertion packaging. Wire pulling: Some unnecessary line protrusions (not on the mold) generated during vacuum forming production need to be modified by lowering the height and increasing the smoothness of the mold, and additional pressure mold (which we call the upper mold) needs to be added to solve them. When the cable is too large, it is considered a defective product and cannot be used for high-end vacuum packaging. However, in the field of component turnover pallets, as long as the cable is arranged neatly and does not affect its functionality, it should be considered a qualified product. Pulling a line, also known as a cramp, cramp, etc. Scratches: Scratches are present on vacuum formed products, especially on transparent blister shells. If the scratches are too long or large, the blister shells will become defective and cannot be used for high-end packaging. Crystal point: A transparent defect caused by small dust particles in the air falling onto the heated plastic material during the production process of vacuum formed sheets. Especially in the production process of transparent vacuum formed sheets, if this defect is too large or excessive, it is considered a defective product. Bubbles: In the production process of vacuum formed sheets, due to the presence of air in the heated plastic material, the finished sheet produced contains bubbles, especially in the production process of transparent vacuum formed sheets. If these bubbles are too large or excessive, they are considered defective. Water ripple: In the production process of vacuum formed sheets, due to different materials and processing techniques, the surface of the finished sheet produced has water ripples, especially in the production process of transparent vacuum formed sheets. If this water ripple is too large or excessive, it is considered a defective product. In general, the thicker the sheet, the more pronounced the water ripples. Qualified PET materials rarely have water ripples, but most PVC materials exhibit water ripples. Heat sealing: It is a vacuum sealing process that uses a sealing machine to heat seal paper cards coated with vacuum oil on the surface with the bubble shell, forming a suction card packaging. High frequency sealing: It is a vacuum packaging process that uses a high-frequency machine to generate high frequencies and bond the shells together to form a double shell packaging. Ultrasonic sealing: It is a vacuum packaging process that uses an ultrasonic machine to generate ultrasonic waves and bond the bubble shells together to form a double bubble shell packaging. Unlike high-frequency sealing, ultrasonic waves can not only seal PVC, PETG materials, but also PET materials, and do not cause electromagnetic damage to the packaged products, making it particularly suitable for electronic product packaging; The drawback is that ultrasonic edge sealing can only be done in spaced points, and usually only one straight edge is sealed at a time.