High-barrier polytrifluorochloroethylene composite hard sheet

Abstract

The invention discloses a high-barrier polytrifluorochloroethylene composite hard sheet which comprises an aluminum foil layer, a first bonding layer is arranged at the bottom end of the aluminum foil layer, a polytrifluorochloroethylene layer is arranged at the bottom end of the first bonding layer, a first moisture absorption layer is arranged at the bottom of the polytrifluorochloroethylene layer, and second moisture absorption holes are formed in a polyvinyl chloride layer. Third moisture absorption holes are formed in a third bonding layer, a second moisture absorption layer is arranged at the bottom of the third bonding layer, and wave-shaped moisture absorption cotton is arranged in first moisture absorption holes, the second moisture absorption holes and the third moisture absorption holes. According to the high-barrier polytrifluorochloroethylene composite hard sheet, water vapor outside a package is effectively prevented from entering the package to erode drugs, the situation that the thickness of the package is different is prevented, the water vapor can be absorbed by the multiple layers of moisture absorption cotton due to the arrangement of the wave-shaped moisture absorption cotton, and the quality guaranteeing function of the composite hard sheet package on the drugs is improved.

Description

technical field [0001] The invention relates to the technical field of pharmaceutical packaging, in particular to a high-barrier polychlorotrifluoroethylene composite hard sheet. Background technique [0002] Medicines are very sensitive to moisture, so as medicine packaging, it is necessary to effectively protect medicines from moisture erosion to prevent medicines from deteriorating. According to the sensitivity of medicines to water vapor, medicine packaging can be designed as products with different barrier properties. Effective cost control while obtaining the highest barrier performance, fluorine-containing polymers have very good water vapor barrier properties, chemical stability and weather resistance, especially suitable for packaging expensive pharmaceuticals that are prone to moisture, but fluorine-containing polymers The extensibility is poor, and it is easy to have different thicknesses in different parts during production, resulting in different barrier propert...

AI Technical Summary

Problems solved by technology

[0002] Medicines are very sensitive to moisture, so as medicine packaging, it is necessary to effectively protect medicines from moisture erosion to prevent medicines from deteriorating. According to the sensitivity of medicines to water vapor, medicine packaging can be designed as products with different barrier properties. Effective cost control while obtaining the highest barrier performance, fluorine-containing polymers have very good water vapor barrier properties, chemical stability and weather resistance, especially suitable for packaging expensive pharmaceuticals that are prone to moisture, but fluorine-containing polymers The extensibility is poor, and it is easy to have different thicknesses in different parts during production, resulting in different barrier properties. Moreover, most of the pharmaceutical packaging in the prior art can only block external water vapor from entering the pharmaceutical packaging, and there is no corresponding Measures to absorb the water vapor of the medicine itself, causing the water vapor of the medicine to evaporate, causing the packaging to bloat and other phenomena

Images