PVC/PE/PVDC composite rigid sheet is made of pharmaceutical PVC rigid film and PVC/PE composite rigid sheet as the base material, and then coated with high barrier material PVDC. The barrier property is more than five times higher than that of single-layer pharmaceutical PVC . It can effectively prevent the deliquesce, mildew and oxidation failure of drugs as a blister packaging for drugs, and extend the shelf life of drugs.
This composite rigid film not only has excellent physical properties, such as high strength, no breakage, good sealing, etc., but also meets strict pharmaceutical standards. It is an important material in the field of pharmaceutical packaging.
Structural characteristics and functions:
PVC layer (polyvinyl chloride): provides good formability and mechanical strength to ensure the stability of drug packaging.
PVDC layer (polyvinylidene chloride): gives the material high barrier properties, effectively blocks the penetration of water vapor, oxygen and other gases, and prevents drug deterioration.
PE layer (polyethylene): provides heat sealing performance to ensure the sealing of the packaging, while enhancing the flexibility and durability of the material.
Performance advantages:
High barrier properties: The PVDC layer greatly improves the barrier capacity for moisture and oxygen, and is suitable for highly moisture-sensitive drugs.
Excellent molding performance: PVC provides good thermoplasticity, which is convenient for thermoforming and processing, ensuring the stability of the shape of drug packaging.
Strong sealing performance: The PE layer ensures that the packaging is firmly heat-sealed to prevent the drug from being damp or contaminated.
Drug safety: It complies with GMP (Good Manufacturing Practice for Pharmaceuticals) standards, is non-toxic and odorless, and ensures the safety of drug storage.
Widely applicable: It can be used for a variety of solid drug packaging such as tablets, capsules, powders, etc., especially for drugs that require high barrier protection.
Production process
The production process of PVC/PVDC/PE composite pharmaceutical rigid film includes PVC rigid film unwinding, adhesive coating, PE film unwinding, PVC/PE compounding, cooling, winding, aging, trimming, corona treatment, PVDC coating, drying, cooling, winding, aging, slitting, inspection and packaging. This production process uses a coating system with double coating heads, which not only has good coating effects, but also greatly improves production efficiency.
Application areas:
Blister packaging for solid medicines such as tablets and capsules
Protective packaging for highly moisture-sensitive medicines
Health products and other high-demand barrier packaging applications