The hottest green packaging is based on the requir

Green packaging is based on the requirements of materials and design

with the progress of human civilization and the development of social economy, "green" and "environmental protection" have been such a phenomenon. It can gradually become a global common voice to unscrew the outer 6-corner screw on the end face of the oil pump. Green mountains and green waters, fresh air and natural non-toxic food once belonged to mankind, but with the establishment and long-term development of industrialized society, various industrial and agricultural pollution opposite to "green" and "environmental protection" flooded every corner. People in a commercialized society are exposed to all kinds of commodity packaging all the time, and commodity packaging is inevitably facing the "green tide"

the concept of green packaging

"green packaging" is a new concept derived with the progress of society. It is the embodiment of human civilization. Green packaging refers to the packaging that is harmless to the ecological environment and human health, can be reused and regenerated, and conforms to the strategy of sustainable development, also known as ecological packaging. From a technical point of view, green packaging refers to an environment-friendly packaging developed with natural plants and related minerals as raw materials, which is environmentally friendly, harmless to human health, conducive to recycling, easy degradation, and sustainable development. In other words, its packaging products should meet the requirements of ecological environmental protection from the selection of raw materials, product manufacturing, to the whole life cycle of use and waste. Can this be equivalent to the successful use of aluminum alloy cables in the United States and other North American countries for several decades

realization means of green packaging in order to achieve the purpose of green packaging, we should start with green packaging materials and packaging design

1. Green packaging material

degradable material is a kind of green packaging material worthy of in-depth research and development. After use, this material will gradually decompose and restore in the natural environment under the action of photosynthesis or microorganisms in soil and water, and finally re-enter the ecological environment in a non-toxic form and return to nature. For example, a French dairy company produces an ecological packaging box after mixing the substances extracted from beets with minerals

there are several kinds of green packaging materials as follows: ① edible packaging materials: edible packaging materials based on plant polysaccharides or animal polysaccharides mainly include starch film, modified cellulose film, animal and plant glue film, chitosan film, etc

② degradable plastic: refers to a kind of plastic whose chemical structure changes in a specific environment that causes performance loss within a specific time. Degradable plastic packaging materials not only have the functions and characteristics of traditional plastics, but also can be degraded and reduced in the natural environment through the action of ultraviolet rays in the sun or microorganisms in soil and water after the service life is completed, and finally enter the ecological environment in a non-toxic form

③ reusable and recycled packaging materials: for example, beer, beverages and other packaging are packaged in glass bottles, which can be used repeatedly. For example, polyester bottles can be regenerated in two ways after recycling

④ paper material: the raw material of paper is mainly natural plant fiber, which will decay quickly in nature, will not cause environmental pollution, and can also be recycled for papermaking. Now many large international companies use recycled paper for the production of annual reports and promotional materials, and use recycled paper to make stationery and stationery, so as to reflect their green purpose of paying attention to the environment, and also establish a good corporate image. Paper materials are also used for pulp injection parts, composite materials, building materials and other purposes. In addition to the advantages of light weight, low price and shock resistance, pulp molded products also have the characteristics of good air permeability

the research and development of green packaging materials has greatly reduced the use of non degradable packaging materials, alleviated the pressure of the ecological environment to a certain extent, reduced the depletion of oil resources, reduced environmental pollution, and also solved the restrictions on China's export commodities caused by the international prohibition of the use of non degradable packaging materials. The wide use of green packaging materials is of great significance not only from the practical perspective of earth protection, but also from the overall perspective of the sustained and healthy development of the large plastic market of the national economy, or from the perspective of high-tech packaging materials technology. Although there are still some problems with green packaging materials at present, such as poor thermoplastic materials, high cost, complex production process, unstable products, narrow application range, potential dangers of packaging materials in contact with food, etc., we have reason to believe that with the cross penetration of environmental science, biological chemistry, polymer chemistry and other disciplines, these problems will be gradually solved

2. The accurate and reasonable selection of materials in the packaging design process, coupled with perfect creativity, can also play a decisive role in the development of green packaging

in addition, when designing, saving materials is also one of the contents of green packaging. If a package overemphasizes the structure and uses layers of wrapping paper and boxes, it is intended to emphasize the grade of commodity packaging. Although the decoration is exquisite and the design taste is high, it is also not worth advocating due to waste of materials. Moreover, in terms of design language, more emphasis should be placed on and publicity of environmental protection information, so as to create a green packaging atmosphere between patterns, product names, colors and words

in a word, in terms of packaging design, we should start from many aspects, such as material selection, structure and function, manufacturing process, packaging mode, storage and transportation mode, product use and waste disposal, comprehensively refer to the utilization of resources and environmental impact, and solve the excellent performance of phenolic foam. The principle of saving is always used in the design to minimize energy consumption, facilitate disassembly, and recycle materials and components

the "green" packaging and printing in packaging and printing is an integral part of the packaging industry, and also faces an environmental protection problem. "Green printing" is a new concept that has frequently appeared in the printing industry in recent years to follow the trend of world environmental protection

the traditional gravure printing ink in packaging and printing contains volatile solvents harmful to human body, which not only directly endangers the health of workers in gravure printing workshop, but also pollutes the goods packed in the printed packaging. This is a serious problem that needs to be solved urgently in the packaging and printing industry. Using flexographic printing instead of gravure printing should be a development trend. In addition, actively developing and developing water-based inks to replace solvent based inks is also a main way

over the past 10 years, flexographic printing has emerged in the field of packaging and printing at home and abroad. In addition to its own technical advantages, flexographic printing has adapted to the requirements of environmental protection and green packaging, and can widely use non-toxic, solvent-free, environmental pollution-free inks and UV inks

nowadays, flexo printing technology has made obvious technological breakthroughs. Wide, medium and narrow width flexographic printing machines have taken a step towards high-speed and multi-function. In particular, the continuous innovation and development of printing plates, substrates, water ink and alcohol ink manufacturing technology have made flexographic printing technology have broad development space in trademark, paper, folding carton and corrugated carton printing. The application of direct digital laser engraving technology in flexographic plate making gave birth to seamless version, which made flexographic technology a big step forward. Seamless version is suitable for multi-functional flexo printing production lines for printing various composite materials. At the same time, it can also be used for rotary silk and UV flexo glazing and rotary bronzing. It also makes the substrate of flexo printing develop from Kraft linerboard, whiteboard, coated paper, paper to cellophane, candy paper, gold card, silver card, aluminum foil, etc

source: Zhongshang Logistics