1. Ingredients harmful to human body in ink;
2. The problem of air pollution and odor caused by solvent evaporation in the ink;
3, water pollution caused by the discharge of water from cleaning water-based ink;
4. Eliminating water pollution caused by offset printing fountain solution;
5, print and ink containers and other industrial waste disposal.
In order to fundamentally improve the impact of ink on the environment, we should start with the composition of the ink, that is, the use of environmentally friendly materials to the preparation of environmentally friendly ink. At present, there are mainly three types of environmental protection inks:
1. The biggest difference between water-based ink and solvent-based ink is that the solvent used in water-based ink is water instead of organic solvent. Most solvent-based inks are mainly volatile and dry. When they are volatilized, toxic gases are emitted, which pollutes the surrounding environment and is harmful to the human body. The solvents used in water-based inks are ethanol and water, which have little pollution to the environment.
2. UV ink It is a photocurable ink that can change from a liquid state to a solid state under a certain wavelength of ultraviolet radiation. It uses no solvent, has a fast and thorough drying speed, consumes less energy, and is solvent-free. It does not need to prevent dusting between printed products and adopts dusting measures. The press and workshop environment is clean and free from dust pollution.
3, water-based UV ink It is a new research direction in the field of UV ink. The viscosity of prepolymers in general UV inks is generally relatively large, and it needs to be diluted with a reactive diluent. However, the currently used reactive diluents have different degrees of toxicity. Therefore, the development of low-viscosity, low-toxicity reactive diluents is being developed at the same time. Water-based UV inks, using ethanol as a solvent, will give inks good compatibility and adhesion.
Exploiting the market packaging of environmental protection equipment in the packaging machinery industry and the food machinery industry are emerging industries that provide equipment and technology for the packaging industry and food industry. In the provision of equipment and technical services for the packaging industry, deep processing of the food industry, and comprehensive utilization, the links with the environmental protection-related fields have become increasingly widespread and close. The following describes several areas in the packaging machinery industry, and these areas are exactly the areas that China's environmental protection industry is currently encouraging to develop. From this we can see the importance of developing environmental protection equipment and technology markets in the packaging machinery industry.
1, alcohol tank production of dry protein feed complete sets of equipment. Its production process is mainly: dehydration of the bath liquid → drying → packing dehydration liquid → concentration.
2. High-concentration organic wastewater treatment technologies and equipment. The direct discharge of these waste waters will cause the water body to become odorized and corrupt, affect the aquatic system and pollute the living environment.
3, straw pulp black liquor processing technology and equipment.
4, packaging waste disposal and comprehensive utilization of technology and equipment.
5, honeycomb composite board production technology and equipment. The honeycomb composite board can save materials, has the advantages of good rigidity, high strength, moisture resistance, recyclability, low cost, etc., and becomes an ideal substitute for “paper substitute wood†and “paper substitute plasticâ€.
As a complete and independent green system, the concluding language green packaging should meet the following requirements: First, there is a set of green program design solutions, including the project content, implementation plans, and process routes of each subsystem in the entire system; and second, there is a complete set of Green production equipment and green guarantee of environmental protection system; third is to have a complete set of green management systems and programs, including all aspects of management and monitoring measures.
The green packaging evaluation system is the life cycle assessment of the ISO 14040 product in the International Environmental Management System ISO 14000.
Life Cycle Assessment (LCA) can make a qualitative and quantitative assessment of the environmental impact of any complex system covering all areas of life, and provide comprehensive and comprehensive evaluation through specific system analysis to verify Whether a product meets the requirements of green products, meets international standards, and provides information support for product development, promotion, and production.
The “green revolution†of food packaging is an international big cause and a big change. It will be the common pursuit of human life in the new century, and it will also be a common theme and an important feature of the future development of the global food industry. This “green revolution†in the food packaging industry worldwide must adopt ISO standards.
It can be predicted that the "green revolution" will surely be an important theme of the global packaging industry in the new century, and it will also be a distinctive feature of the development of the packaging industry in the new century. The 21st century will be a green world and will also be a green packaging world. China's packaging industry must catch up with the world's "green wave" to meet the challenges after China's accession to the WTO and ensure that it takes the initiative in the world market in the 21st century.
2. The problem of air pollution and odor caused by solvent evaporation in the ink;
3, water pollution caused by the discharge of water from cleaning water-based ink;
4. Eliminating water pollution caused by offset printing fountain solution;
5, print and ink containers and other industrial waste disposal.
In order to fundamentally improve the impact of ink on the environment, we should start with the composition of the ink, that is, the use of environmentally friendly materials to the preparation of environmentally friendly ink. At present, there are mainly three types of environmental protection inks:
1. The biggest difference between water-based ink and solvent-based ink is that the solvent used in water-based ink is water instead of organic solvent. Most solvent-based inks are mainly volatile and dry. When they are volatilized, toxic gases are emitted, which pollutes the surrounding environment and is harmful to the human body. The solvents used in water-based inks are ethanol and water, which have little pollution to the environment.
2. UV ink It is a photocurable ink that can change from a liquid state to a solid state under a certain wavelength of ultraviolet radiation. It uses no solvent, has a fast and thorough drying speed, consumes less energy, and is solvent-free. It does not need to prevent dusting between printed products and adopts dusting measures. The press and workshop environment is clean and free from dust pollution.
3, water-based UV ink It is a new research direction in the field of UV ink. The viscosity of prepolymers in general UV inks is generally relatively large, and it needs to be diluted with a reactive diluent. However, the currently used reactive diluents have different degrees of toxicity. Therefore, the development of low-viscosity, low-toxicity reactive diluents is being developed at the same time. Water-based UV inks, using ethanol as a solvent, will give inks good compatibility and adhesion.
Exploiting the market packaging of environmental protection equipment in the packaging machinery industry and the food machinery industry are emerging industries that provide equipment and technology for the packaging industry and food industry. In the provision of equipment and technical services for the packaging industry, deep processing of the food industry, and comprehensive utilization, the links with the environmental protection-related fields have become increasingly widespread and close. The following describes several areas in the packaging machinery industry, and these areas are exactly the areas that China's environmental protection industry is currently encouraging to develop. From this we can see the importance of developing environmental protection equipment and technology markets in the packaging machinery industry.
1, alcohol tank production of dry protein feed complete sets of equipment. Its production process is mainly: dehydration of the bath liquid → drying → packing dehydration liquid → concentration.
2. High-concentration organic wastewater treatment technologies and equipment. The direct discharge of these waste waters will cause the water body to become odorized and corrupt, affect the aquatic system and pollute the living environment.
3, straw pulp black liquor processing technology and equipment.
4, packaging waste disposal and comprehensive utilization of technology and equipment.
5, honeycomb composite board production technology and equipment. The honeycomb composite board can save materials, has the advantages of good rigidity, high strength, moisture resistance, recyclability, low cost, etc., and becomes an ideal substitute for “paper substitute wood†and “paper substitute plasticâ€.
As a complete and independent green system, the concluding language green packaging should meet the following requirements: First, there is a set of green program design solutions, including the project content, implementation plans, and process routes of each subsystem in the entire system; and second, there is a complete set of Green production equipment and green guarantee of environmental protection system; third is to have a complete set of green management systems and programs, including all aspects of management and monitoring measures.
The green packaging evaluation system is the life cycle assessment of the ISO 14040 product in the International Environmental Management System ISO 14000.
Life Cycle Assessment (LCA) can make a qualitative and quantitative assessment of the environmental impact of any complex system covering all areas of life, and provide comprehensive and comprehensive evaluation through specific system analysis to verify Whether a product meets the requirements of green products, meets international standards, and provides information support for product development, promotion, and production.
The “green revolution†of food packaging is an international big cause and a big change. It will be the common pursuit of human life in the new century, and it will also be a common theme and an important feature of the future development of the global food industry. This “green revolution†in the food packaging industry worldwide must adopt ISO standards.
It can be predicted that the "green revolution" will surely be an important theme of the global packaging industry in the new century, and it will also be a distinctive feature of the development of the packaging industry in the new century. The 21st century will be a green world and will also be a green packaging world. China's packaging industry must catch up with the world's "green wave" to meet the challenges after China's accession to the WTO and ensure that it takes the initiative in the world market in the 21st century.