Food packaging manufacturer: food packaging materials have?

In modern life, we come into contact with every day each of food packaging materials and plastic products, such as plastic shopping bags, plastic cups, plates, plastic bottles and so on. We may not know, however, these plastic products are made of different resin material. And different resin material under different conditions, such as temperature, humidity, precipitation may be toxic and harmful substances, it is not safe. So how we can know what's food packaging materials? Let's take a look at. 。 。 1 a, plastic packaging materials. It has the advantage of light quality, easy to use, barrier property, permeability, heat resistance, cold resistance, good corrosion resistance, and shape character of colorful, beautiful appearance. Because of its rich raw material sources, low cost, good performance, is widely used in food packaging, and gradually replaced the traditional packaging materials such as glass, metal, paper, make great changes have taken place in the face of food packaging. It is worth noting that the plastic packaging materials have a prominent faults, is not easy to degrade, burning can produce poisonous gas. And plastic packaging materials belong to the varieties of plastic products used in the cycle of the shortest, the general is 1 ~ 3 months, the longest one year, since then become urban solid waste into the garbage disposal system mostly, others are discarded, cause 'white pollution'. 2. Plastic packaging materials in the waste and the proportion of the largest, on the environment caused by pollution is also one of the most serious in all kinds of packaging material. The current treatment scheme for recycling and combining the development and application of degradable plastics. In addition, due to the plastic itself is flawed, the wet resistance and barrier property of overall is not as good as metal or glass containers, so improve the existing plastic properties, development of new varieties, improving strength and barrier property, reduce consumption and reuse, recycling is very important. Second, the paper material 1. The system of modern packaging industry, paper and paper container occupies very important position, 40% ~ 50% of the total of all packaging materials. Compared with other materials, it has a series of unique advantages: processing performance is good, good printing performance, has certain mechanical properties, is advantageous for the composite processing, good line, good health, safety, and raw material sources, species diversity, low cost, easy to form the mass production, paper packaging container weight is lighter, good buffer, wide application, wastes can be recycled, no white pollution. As people of environmental protection consciousness enhancement and life actual need, development of plant fiber snack box, research and development of natural green packaging materials will be used as the next paper products such as food packaging materials. 2. In addition, with the rapid development of packaging technology, edible packaging is an important development direction of modern food packaging. This kind of packing have important environmental and economic value. At present, there are two kinds of foreign edible paper, a kind of vegetable as the main raw material, will the vegetables molding and drying; Another kind is the starch, sugar paste, to join the other food additives, strive for and paper making similar methods. From the point of application and development prospects, vegetables as raw material of green product has more development potential. Three, metal packaging material metal packaging material its good performance, high barrier property, excellent mechanical properties, container forming good manufacturability, high and low temperature resistance, good thermal conductivity and heat resistant to impact, good surface decorative, packaging waste recycling more easily. Canned and some liquid, paste, powder or senior food, use this type of packaging materials. Commonly used tinplate and aluminum metal packaging material, widely used in the manufacture of the tins of food and drink. Food packaging material must be familiar with and master the resources of all kinds of packaging materials, performance, price and process conditions, etc. There are many different kinds of packaging materials, each have different characteristics. In terms of physical properties, some hard, some soft, airtight, watertight, some transparent, some fragile, etc. ; In terms of chemical properties, stable, easy to react with a certain substances; In terms of printing and decoration performance, also is different. So we in the choice of packaging material, must be the combination of your product to measure.
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