Most popular flexible packaging measures to achiev

Flexible packaging: a number of measures to achieve low carbon

in people's understanding, the flexible packaging industry is a major energy consuming and polluting industry. In the face of environmental crises such as excessive energy consumption, acid rain, ozone layer destruction, greenhouse effect and so on, the top priority is to reduce the emission and energy consumption of organic waste gas and effectively improve the working environment. Many enterprises in the soft packaging industry in China have increased their research and development efforts on the basis of the original emphasis on quality and efficiency, and pay more attention to energy conservation, consumption reduction, emission reduction and safety (personal safety, labor safety, food safety, drug safety, etc.). These new business concepts have prompted more enterprises to gradually move towards norms, achieve low-carbon, and assume more social responsibilities

benzene free ink and general-purpose ink occupy the market share

after using benzene free ink, not only the residue of benzene solvents is effectively eliminated, but also the residue of ethyl acetate will be greatly reduced. Therefore, the use of benzene free ink is conducive to the control of the total amount of solvent residue. Due to stricter requirements for solvent residues, major companies in the ink industry have launched benzene free and ketone free inks. This kind of ink contains neither aromatic hydrocarbons nor ketone solvents, only esters and alcohol solvents. With the characteristics of low odor and high brightness of ink, the use of this kind of environmental friendly ink will improve the competitiveness of gravure printing in the field of packaging printing and occupy more market share. Shanghai DIC, Zhejiang New Oriental ink, Jiangmen Toyo and other enterprises have developed industrialized products and have been widely used in the market

at present, the ink used by flexible packaging enterprises is basically one kind of ink corresponding to one kind of substrate. Polyether sulfone (PES) is a thermoplastic high molecular material with excellent comprehensive performance developed in 1972. The ink between substrates cannot be used universally, resulting in the increase of inventory varieties, difficulties in management, the increase of on-site operation procedures, the difficulty of digesting residual ink and so on. How to recycle the remaining ink is one of the important problems faced by gravure manufacturers. Therefore, the use of universal ink has become the voice of many gravure manufacturers. The use of universal ink system can also bring benefits to the standardized management of color. At the same time, it can effectively reduce the amount of residual solvent. Some ink companies such as Zhejiang New Oriental have successively launched mature environmental protection general-purpose products, which can effectively help and polish the soft packaging enterprises to reduce the remaining ink inventory

in addition, benzene free inks with chlorinated polypropylene modified resin as the connecting material, although not completely environmentally friendly, have been widely used because of their low cost, relatively simple use, and also meet the special requirements of extrusion compounding process for inks

solventless compounding technology has developed rapidly.

with the introduction of the food safety law, the requirements for the health and safety performance and barrier protection performance of packaging materials are more stringent. China's flexible packaging composite packaging will undergo a major structural adjustment, which provides a broad market for solventless compounding, extrusion compounding and coextrusion compounding processes

the solvent-free composite process does not have the problem of exhaust gas emission, and does not need a huge and complex heating and ventilation, exhaust gas exhaust device. The equipment is simple and the energy consumption is reduced. Solvent free compounding process is simple, the equipment covers a small area, which is suitable for reducing costs, saving resources and protecting the environment. Therefore, it will be the main direction of compounding process development in the future

solvent free composite process has a history of more than 30 years, and has a high popularity in Europe and the United States. It is a very mature process. Guangzhou Tongze Machinery Co., Ltd. and other companies have provided advanced technical equipment for the development of solvent-free composite in China. Some well-known solvent-free composite equipment manufacturers abroad have also begun to set up offices in the mainland

solvent free compounding is becoming the most popular technology in the domestic flexible packaging industry, although it is rarely used in China at present: health, environmental protection, safety and low cost companies have made it clear that this is a good opportunity for many enterprises in trouble. In the long run, with the increasingly stringent environmental protection regulations and the continuous development of economy, the proportion of solvent-free adhesive products will continue to rise, ushering in a period of great development

the recycling of volatile solvents brings tangible benefits to enterprises

the large use of solvents in gravure printing and composite processing is an important reason for solvent pollution in Gravure plastic flexible packaging industry. The waste gas containing solvent discharged by the exhaust emission system in gravure printing machine and compound machine has caused environmental pollution, and the volatilization of solvent in the process of use has also caused indoor pollution and safety problems

with the enhancement of people's environmental awareness, the environmental protection of solvents in gravure printing and compounding processes has received extensive attention. China is also increasingly feeling the obvious pressure of environmental protection. For example, the solvent gas discharged in China for many years has been discharged at high altitude, and now it is difficult to pass the environmental impact assessment of the project. In the next few years, the state may introduce compulsory measures to install solvent recovery and treatment devices to reduce exhaust emissions and ensure that the national goal of energy conservation and emission reduction is achieved

through adsorption, reduction, purification, recovery and recycling, the organic waste gas produced in the production of flexible packaging not only solves the problem of environmental pollution caused by the emission of organic waste gas, but also turns waste into treasure, recycles the solvent, saves a lot of purchasing funds for dissolving dbj01 ⑶ 8 ⑵ 002 "technical specification for external wall insulation construction polymer cement mortar adhesive", and truly realizes environmental protection, resource saving and recycling

the organic waste gas recovery equipment specially developed by Luoyang Huitong Tianbao Environmental Protection Technology Co., Ltd. for the gravure printing machine and Xerox machine in the plastic color printing industry has been widely used in well-known enterprises in the industry such as Shanghai Zijiang, Changchun century, Henan yinlida, Haining Yuehai, and has produced good economic and social benefits

however, the direct use of recycled solvents containing uncertain impurities may affect the health of consumers, so enterprises using this technology should ensure the purity of solvents. In Europe, color printing enterprises must have solvent recovery to allow production, and the recovered solvent must be re rectified to allow use

heat transfer technology using intaglio printing

in recent years, domestic heat transfer technology has made great development, and is widely used in surface decoration of daily necessities, stationery, cosmetics, electrical appliances, toys and so on. The heat transfer technology of gravure printing is that the pattern is first pre printed on the film surface by gravure printing, so the printed pattern has rich layers, bright colors, small color difference, and is suitable for mass production; After that, the exquisite patterns on the transfer film are transferred to the surface of leather, textile fabric, plexiglass, metal, plastic, crystal, wood products, copper coated paper, stainless steel and other materials through one-time processing (heating and pressurization) by the heat transfer machine. After forming, the ink layer is fused with the product surface, which is lifelike and beautiful, and greatly improves the grade of the product. At present, the commodities that have been developed by using heat transfer technology include hundreds of commodities, such as clothes, cloth bags, hats, pillows, mugs, tiles, watches, mouse pads, coasters, hanging calendars, medals, brocade flags and so on

Application of digital printing technology in flexible packaging industry

in recent years, the demand for fewer orders, faster turnover speed and more complex variable information in the flexible packaging market has been rising steadily. Flexible packaging enterprises are facing a period of rapid change. Flexible packaging enterprises need to simplify and improve their production efficiency in order to adapt to the flexibility of short version, put it on the market faster and have price competitive packaging. From a global perspective, some flexible packaging enterprises in Europe, America and Japan are turning to digital printing solutions to quickly process packaging products with the best shelf display effect

some domestic flexible packaging enterprises use digital heat transfer technology, inkjet technology and inkjet technology to achieve location printing of variable information when printing electronic supervision codes