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Sep 25, 2023

Blister packaging terminology

  Blister cutting

After blister forming, the plastic blister packaging is punched, and the large sheet is cut into individual products using a die, which is also called blanking, cutting, die-cutting, etc.

  Hem

Among the blister packaging products, there is a type of blister packaging called plug-in 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 can be inserted into the folded edges to form a plug-in card package. Blister packaging

  pull line

Some undue line bulges produced during blister molding production require re-modification of the mold and the addition of additional pressure molds. When the pull wire is too large, it is a defective product and cannot be used for high-end blister packaging, but in parts turnover In the field of pallets, as long as the drawings are arranged neatly and do not affect the use function, they are regarded as qualified products.

  scratches

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

  Crystal point
During the production process of blister sheets, a transparent flaw occurs due to the fine dust in the air falling on the heated plastic material. Especially in the production process of transparent blister sheets, this flaw is too large. If there are too many, they will be regarded as defective products.

  bubble

In the production process of blister sheets, because the heated plastic materials contain air, the produced product sheets contain bubbles. Especially in the production process of transparent blister sheets, such large bubbles are regarded as secondary Taste
  water ripples
In the production process of blister sheets, due to differences in materials and processing techniques, the surface of the produced cost sheets has water ripples. Especially in the production process of transparent blister sheets, such water ripples are too large and are considered Defective products. Generally speaking, the later the sheet is, the more obvious the water ripples will be. Qualified PET materials rarely have water ripples, but most PVC have water ripples.

  Heat sealing

A blister packaging process that uses a sealing machine to heat-seal paper cards and bubble shells coated with blister oil on the surface to form blister packaging.

  Ultrasonic sealing

An ultrasonic machine is used to generate ultrasonic waves to bond the blister and blister together to form double blister packaging. Unlike high-frequency sealing, ultrasonic waves can not only seal PVC, PET and other materials, but also have no electromagnetic damage to the packaged products. It is particularly suitable for the packaging of electronic products. The disadvantage is that ultrasonic edge sealing can only be in the form of dots at intervals, and generally only one straight edge can be sealed at a time.

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