Product group: Plastic blister
A
plastic processing technology, the main principle is to heat the flat plastic
hard sheet material to soften it, then use vacuum to absorb it on the surface
of the mold, and cool it to form. It is widely used in plastic packaging,
lighting, advertising, decoration and other industries.
The
main advantages of blister packaging are that it saves raw and auxiliary
materials, is light in weight, convenient to transport, has good sealing
performance, and meets the requirements of environmentally friendly green
packaging; it can package any special-shaped products without additional
cushioning materials for packing; the packaged products are transparent and
visible, good appearance, easy to sell, and suitable for mechanized and
automated packaging, convenient for modern management, saving manpower, and
improving efficiency.
Thermoforming
process flow chart General process:
plastic
sheet-cutting-sheet fixing-heating-forming-demoulding-edge removal-finished
product
[Material
requirements for blister molding]:
1.
Blister molding can only produce products with relatively uniform wall
thickness (generally, the chamfer is slightly thinner), and cannot produce
plastic products with very different wall thicknesses.
2.
The wall thickness of blister molding is generally in the range of 1 to 2mm or
thinner (the most commonly used thickness of blister packaging for small
packages is 0.15 to 0.25mm).
3.
The stretch of blister molded products is subject to certain restrictions. The
diameter and depth ratio of blister molded plastic containers is generally not
more than 1, and in extreme cases, it should not exceed 1.5.
4. The dimensional accuracy of blister molding is poor