50cm stretch film Shiyan Suizhou sales Tel

Usually, people always plastic packaging and the "white pollution" together, easily degradable materials to packaging products as green packaging, but without taking into account whether the packaging production process will cause environmental pollution and waste of resources, as well as packaging products after use can be reused. For example, some people will be regarded as green packaging paper packaging, plastic packaging placed opposite green packaging. So, in the end what is green packaging? Other packaging materials can not be replaced on the green rubber industry forum held recently, experts clarify that contribute to sustainable development of the packaging is green packaging. To health and safety, environment-friendly, resource-saving three scales to measure the full life-cycle analysis, environmental protection, it is the green packaging. Thus, paper packaging if serious contamination in the papermaking process, or improper recycling is not in line with the green packaging requirements; and plastic packaging If you implement reduction, resource recovery, recycling, is the green packaging. Studies have shown that the plastic material can get a lot of applications because of its lighter weight, has a lower carbon footprint compared to glass and metals. From the overall performance perspective, plastic packaging materials also have other irreplaceable advantages. High density polyethylene than the pollution-free bleached kraft paper shopping bag full life cycle is much smaller. If the comprehensive ban plastic in packaging, will result in greater packaging pollution. Full life cycle design first used in addition to packaging materials, but also from the user and the environment considering whether to green. If less direct packaging materials, when used in the transport package may be more. Meet the packaging functions under the premise, to follow the circular economy reduction, reuse, recycle principle economic activity behaviors throughout the life cycle to minimize the amount of waste generated in the process, it is the starting point for green design. This aspect can be reached through product design packaging weight reduction effect, reduce the use of raw materials; on the other hand can be used in favor of recycled plastic raw materials, reduce the amount of solid waste permanently. In packaging design and development, to develop a global vision of success is essential commodity. Coca-Cola "Ice Dew" drink bottle is representative of the recent listing of green design first. "Ice Dew" light flask wrapped bottle weighs only 9.8 grams, compared with the original bottle weight more than 35% with a corresponding 35% reduction in carbon emissions, and the quality of ordinary plastic beverage bottles cans about 16 grams. And it's bottle wall thickness of only 0.1 mm, it can be easily twisted into strips, save more than 70% of the waste of space. This product has been able to do more than ordinary plastic bottle weight by nearly 40% load and other physical properties but did not reduce, and its technical design are inseparable. The new bottle design with a narrow mouth, small diameter and height so that the amount of the cap polyethylene material was reduced by 50%, but the seal does not deteriorate; sidewall ribs with a different structure, although the thickness of only 0.1 mm , but enough to ensure no deformation bottle containing beverages; bottom lines look petal 1 times more than the average bottle, enabling Bodi compression. Important factors that also affect the recovery of hard plastic packaging "image". Thus, the packaging material is also easier to recycle plastic packaging design focus. According to the company reports, packaging design to make use of the same material or of easily separable materials, easily recyclable material, can improve the recycling rate of plastic packaging materials. Water-modified polyvinyl alcohol coated film packaging materials bimodal high density polyethylene, metallocene polyolefins having high barrier properties, both at the expense of sacrificing performance, can reduce the film thickness. Such a lightweight, single material packaging material after all, a good choice. Such as heat sealable stretch film plus varnish can significantly reduce the amount of material has been in cold packaging a large number of applications; high-strength metallocene polyolefins can reduce the thickness of packaging film; extruded composite technology can precisely control each layer thickness, and therefore the high price barrier layer thickness can be controlled very thin, while its preservation performance can be doubled or even several times to improve. Short life of biodegradable packaging preferably in Tsinghua University professor Guo Baohua opinion, bioplastics can not completely replace ordinary plastic, but for one-time items, or a short life cycle and easily recycled products, such as mulch or household packaging, whole biodegradable material is a preferred material. This first industrialized polylactic acid biodegradable plastics in packaging and other fields have been widely applied. With retail giant Wal-Mart, led by large retailers began several years ago to promote the use of polylactic acid transparent rigid boxes and bags, and more and more retailers join the ranks. Biodegradable plastic bottles field applications recently made a breakthrough. Coca-Cola launched a new 100% recyclable plastic bottles. The company will end this trial in the bottled water plastic bottle packaging. In March, the US Green Planet bottles of mineral water company launched 100% bio-plastic beverage bottles, rather than mixed material biodegradable plastic bottles / ordinary plastic. World Expo held in Shanghai and Beijing Olympic Games are also used as raw material polylactic acid disposable tableware. It is understood that weighs 14 grams ordinary polyethylene packaging materials if the modified polylactic acid material to replace the quality of only 1.5 grams. Polylactic acid realization tons of industrial production, the price will be close to conventional polyethylene film. When the green plastic packaging will closer to us.