PVC blister is a kind of plastic profile processing technology. The main principle is to heat the flat PVC profile sheet, then after it becomes soft, it is adsorbed on the surface of the mold by vacuum, after cooling, it is formed, and then it can be widely used in PVC sheet Packaging, lighting, advertising, decoration and other related industries of profile products.
Blister packaging products mainly include: blister, tray, blister box. Also known as: vacuum cover, blister, etc., blister packaging equipment mainly includes: blister forming machine, punching machine, sealing machine, high frequency machine. For folding machines, packaging products formed by encapsulation can also be divided into: plug-ins, blister card double blister, half blister, half-fold blister, three-fold blister, etc.PVC Extrusions
In the blister process, the transparent PVC profile hard sheet is made into a specific convex transparent plastic, which is covered on the surface of the product to protect and beautify the product. The ordinary plastic is hardened and a layer is glued on the surface. The solute material, so that the surface of the tray has a solute feel, which is used to improve the grade of the packaged product. The plastic tray of the modified material with a special process is mainly used for the electrostatic tray of electronic and IT products.
The mold used for blister production, the lowest cost is the plaster mold, the second is the electroplated copper mold, and the most expensive is the aluminum mold. The mold is drilled with small holes for vacuum adsorption and heating of the hard sheet to form a blister PVC plastic profile. product.
In the blister we often talk about, a blister forming machine is used to adsorb the thermally softened plastic hard sheet on the surface of the mold, and after cooling, a concave-convex shape plastic is formed.
Blister cutting: The plastic product after blister packaging is formed, and the large sheet is divided into individual products by a knife through a punch.
Folding: One of the PVC blister packaging products is called plug-in packaging.It is necessary to fold the three sides of the blister 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 plug-in package.Plastic Foam Extrusions
Heat sealing: It is a kind of blister packaging process. The paper card coated with blister oil on the surface and the blister are also combined with a sealing machine to form a blister card package.
High-frequency sealing: It is a process of blister packaging, mainly using a high-frequency machine to generate ultrasonic waves, and then bonding the blister and the blister together to form a double blister packaging. The difference from high-frequency sealing is that the ultrasonic It can not only seal PVC, PET, PETG and other materials, but also PET materials, and there is no electromagnetic damage to the packaged products. It is especially suitable for the packaging of electronic products: but the disadvantage is that the ultrasonic edge sealing can only be separated by dots. And in general, only one side can be sealed at a time.
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