Packing life short, usage is big, and hard to be concentrated, on city environment and human cause serious harm. Environmental problems are becoming more and more important today, walk the road of sustainable development has become a global focus and urgent task, and become all walks of life development and human activity criteria. The development of packaging materials must be to save resources, saving energy, use easily after be plastic recycling machinery (such as plastic recycling machines and plastic Shredder) recycling or easy to be degradation is the starting point of the technology innovation. Packaging new material, new craft, new technology, new products are constantly emerging, and high performance, multi-function toward the direction of development.
Along with the country the “white pollution” attention, with environmental protection materials instead of foam plastic as a buffer packaging materials, become the cushion packing a development trend, the structure of the buffer material from unitary type steering factors.
Every year in the world consumption of packaging materials used to a lot of resources, therefore, to improve the performance of packaging materials at the same time, to seek for the reduced material consumption and reduce processing costs, is always package manufacturing industry pursuit of the goal. The nanometer material compound and into the nano packaging materials not only greatly improved the performance of raw materials and give new function, and expand the application range of raw materials, but also save the scarce resources. Rubber and plastic is packaging and food machinery application more raw materials. But usually the rubber is rely on carbon black to improve its strength, abrasion resistance and aging resistance, products for black, not suitable for use in the food machinery. The appearance of the nanometer materials the problem is solved. New nano modified rubber all the indexes have greatly raised, especially ageing resistance is raised three times, the use of life for 30 years, and the color is gorgeous, color preserving excellent effect. Ordinary plastic yield, wide application, the price is low, but the performance as engineering plastics. And engineering plastics is superior performance, but a high cost and limits its in packaging and food machinery of the wide range of application.
Nano composite packaging materials with the rapid development of nanotechnology and industrialization, because of its wear resistance, hardness, strength, resistance permeability and plasticity are obviously enhance and improve, in addition to used in food packaging and machinery outside, still can be used for special packaging such as antistatic, prevent electromagnetic, prevent sympathetic detonation and invisible, dangerous goods, packing and so on, it urges the traditional packaging materials have a great change.
Edible packaging film is the natural edible substances (such as polysaccharide, protein, etc.) as raw material, through the different molecular interaction and form with porous network structure of the film. Such as chitosan edible packaging film, corn protein packaging film, modified cellulose edible packaging film and compound edible packaging film, edible film can be applied to various ready-to-eat products of inner packaging, in food industry should have the huge market.