The sanitary safety problem of ceramic packaging materials used in food packaging mainly refers to the dissolution of heavy metal element lead or cadmium in the glaze layer of glazed ceramics, which is harmful to human health. When these containers are used to hold acidic foods (vinegar, juice) and wine, these substances are easily dissolved and migrated into foods, and even cause poisoning. This article will introduce you to the classification of paper packaging materials.
The advantages of packaging materials are reflected in the use of materials, waste, pollution, recycling and reuse, without secondary pollution. Therefore, the selection of environmentally friendly packaging materials should be consistent with the basic principles of pollution-free, non-polluting and recyclable. Pure natural environmental packaging materials, although non-polluting, have high commercial costs and are a waste to the earth's capital. Composite environmentally friendly materials will become the mainstream trend of environmentally friendly packaging materials because of their low cost, no pollution, and easy recycling. .
The packaging material needs to have an efficient bacteriostatic effect to ensure that the sterile machine is not contaminated by external bacteria for a long time: at the same time, the packaging material is required to have permeability to the sterilization factor, and does not affect the sterilization factor to the bacterial microorganism. Kill function.
Packaging materials are one of the necessary conditions for electronic products to fulfill their functions. They not only affect the overall function of the product packaging, but also the quality problems of the electronic products during transportation and storage. In addition to ensuring that electronic products are not harmed by the outside world, the selection of packaging materials should also be oriented towards conservation and environmental protection.
At the same time, the government authorities also began to act. Earlier, the State Council issued a number of "Opinions on Promoting the Development of the Express Industry", which called "green energy conservation" as one of the development goals of the express delivery industry. Recently, the State Administration of Posts and Telecommunications also issued the "Implementation Plan for Promoting Green Packaging in the Express Delivery Industry", which requires that by 2020, the packaging materials with excessive toxic and hazardous substances will be basically eliminated, and a socialized express packaging packaging system will be basically established.
Article source address: http://
Gabion wire mesh,High Quality Gabion wire mesh,Gabion wire mesh Details
Hebei Giant Metal Technology Co., Ltd. , https://www.358fencing.com