After the plastic sheet is blistered, various packaging boxes, trays, etc. can be obtained. The processing technology of blister products is widely used, mainly distributed in the outer packaging, lampshade manufacturing, acrylic light boxes, industrial production plastics, blister packaging boxes and plastic parts manufacturing industries.
The principle of the blister process
The processing and production process of plastic products is varied, including blister molding, blow molding, injection molding, etc. No matter which processing technology is available, as long as the manufactured goods meet the needs of users, it is a good processing technology. Nowadays, blister packaging products can be said to only increase but not decrease, and they have been increasing with a high profile for a long time. Why are blister packaging products so popular, and what are the basic principles of its production?
Plastic absorbing products such as food blister trays are mainly processed with plastic sheets. The basic principle of its generation is to heat and soften the flat plastic sheet raw material, adsorb it on the surface of the die-casting mold with vacuum, and then cool it to form. Plastic suction products are widely used in various industries, electronic devices, food companies, household appliances industry, hardware and electrical machinery, daily chemical industry, toy industry, daily necessities, medicine, health care products, automobiles, stationery, stationery Such industries are inseparable from blister packaging products.
What is the difference between the injection molding process and the blister process?
Injection molding and blister molding are two processes in the production and manufacture of plastic products, which will be used separately according to different production needs. So what is the difference between the injection molding process and the blister process? We can compare in terms of usage, production cycle, practical application and production method.
1. Different types of use
Blister is mostly used in enterprise electronic technology products, digital cultural products, toys, stationery, hardware, etc. The different types of blister products include blister boxes, blister boxes, blister trays, blister covers, etc. Injection molding is often found in mobile phone shells, office computer shells, plastic cups, mouse shells, hardware accessories shells, etc.
2. the production cycle is different
The mold product is a hot-soft production mode, and multiple molds can form multiple products at one time. The injection mold has a long production cycle and is produced by a single-mode multi-product press without direct product splitting.
3. Practical application
Blister is a product in the form of packaging design, while injection molding technology is a product in the form of its own items. The same is that the two belong to Chinese plastic products.
4. Different production methods
After heating the sheet, the formed plastic absorbent article is cooled by attractively bonding the sheet and the mold. Injection molding extrudes the hot-melt plastic into the mold for self-injection under working pressure, and the cooling system is formed. Injection molding is usually used for mobile phone casings, computer casings, plastic cups, mouse casings, etc.
Classification of blister packaging products
Blister packaging products can be roughly divided into two categories in terms of functionality.
One is a series of transparent products for the purpose of displaying, protecting and beautifying commodities. It is mostly used for placing or hanging on the shelves of shopping malls, and the raw materials used are mostly PET plastic sheets and PVC plastic sheets with good transparency. Products include: masks, card blister, suction card blister, heat-sealed double blister, half-fold double blister and transparent folding box, etc.
The other is a series of plastic trays and blister packaging boxes for the purpose of protection, separation, shock resistance and foil. It is mostly used in electronic devices, IT, industrial production parts and cosmetic products. The raw materials used are mostly PS plastic sheets (color PS plastic sheets, anti-static PS plastic sheets and flocking, etc.). Products include: plastic trays, plastic inner trays, blister packaging boxes, flocking blister, anti-static blister, conductive blister trays, turnover plastic trays, etc.
The two types of blister packaging products are closely combined, and new types of outer packaging have emerged: bottom sleeves and sandwich outer packaging. The “face” of the bottom edge sleeve is made of PET raw material with better transparency, and the “bottom” is made of PS raw material. It not only has the protective function of the container, but also has the intuitive effect of display.