New environmentally friendly food packaging materials: paper and plastic packaging
[Chinese Packaging Network News] Paper materials can give people a sense of environmental protection, and therefore some manufacturers are motivated to pursue visually high-end food packaging bags. The role of paper in paper-plastic composite materials is mainly to give people visual The texture of the paper and the stiffness of the packaging material have no practical contribution to the barrier properties and peel/seal strength of the packaging material and are sometimes disadvantageous.
The separation and recovery of composite flexible packaging is still a problem at present. It is not as easy to recycle and reuse as a single material plastic. The environmental pollution of the waste of food packaging bags and composite flexible packaging has aroused widespread concern in the society. When paper is used as a single material, it can be recycled, but when it is compounded with plastic, it becomes difficult to recycle the composite flexible packaging waste.
The numbness of food packaging bags in pursuit of vision and excessive packaging, resulting in waste of resources, or causing misunderstanding to consumers is not good.
Kraft paper bags are usually 50-60 gram weight, salt bags are generally 27 grams of white paper, its role in crossing the river does not increase the protection of goods, neither meet the reduction The principle of low carbon is also not conducive to the recycling of waste, and is called "false environmental protection."