Punching press shaped high sealing tropical type plastic aluminium composite hard sheet and production technology

Abstract

The invention discloses at least one layer of plastic film and at least one layer of aluminum foil bonded by an adhesive to form an even-numbered multi-level compound, and finally coated with heat-sealing glue, which can be punched and formed into a high-seal tropical-type plastic-aluminum composite hard sheet and In the production process, the plastic film layer is a plastic film densely covered with tiny corona spots through double-sided corona shock treatment, and the aluminum foil is an aluminum alloy aluminum foil containing silicon element and is single-sided light. The multi-layer composite structure with plastic-aluminum toughness and brittle complementary matching of the present invention slows down the lattice slip deformation and damage during the stamping and stretching of the aluminum foil, so that the plasticity can reach consistent synchronous forming. Through the double-sided corona impact on the surface of the polyester film layer, a strong electrostatic attraction and surface adhesion are formed, and the plastic-aluminum composite is uniform and compact, which fundamentally solves the problem of sealing the composite hard sheet for sealing the drug cover in the plate Poor compactness, poor fastness, easy to foam, not resistant to peeling, easy to deform, soft and not firm, insufficient depth of stamping concave, unsightly, and unsatisfactory sealing.

Description

technical field [0001] The invention relates to a punchable blister packaging material for medicine, food, health products and the like. The invention also relates to the production process of the packaging material. Background technique [0002] In the known technology, in order to prevent moisture and volatilization of capsule granule medicines, the packaging for plate-mounted capsules and tablets is almost all sealed with transparent blisters. This transparent bubble cover formed by thermosynthesis of common aluminum foil and polyvinyl chloride PVC plastic is still not ideal enough in terms of water vapor transmission and oxygen barrier. In particular, it cannot block the light radiation including ultraviolet light, and cannot fundamentally solve the quality problems that the medicine is volatile, easy to be affected by moisture, deteriorated by light, and the curative effect is doubled, so that the active ingredients of the medicine within the validity period are double...

AI Technical Summary

Problems solved by technology

However, the electrostatic adsorption force generated by the corona electrostatic effect it relies on will decay with time, and the time and time limit for plastic-aluminum bonding are required to be short, and the composite tightness is not strong enough.

[0004] In addition, there are no literature and achievement reports similar to the present invention

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