The revolution in science and technology not only brought about rapid development for social productivity, but also created tremendous material wealth for mankind. At the same time, it also created unprecedented destructive power and caused serious pollution to the ecological environment. The packaging industry is one of the important industries that cause pollution. To solve the pollution problem in the packaging industry, a “green revolution†is emerging in the packaging industry.
The rise of green packaging originated from the proliferation of white pollution. The root cause lies in the increasing packaging waste that comes with the increasing availability of packaging materials and packaging products. Because people ignore the environmental factors in the production and management activities, they ignore the intractable plastic packaging products, and do not recycle the recycled packaging products, causing serious environmental pollution.
"Green revolution" is a major change in the world packaging industry, and it is also a major trend in the development of the packaging industry in the new century. It has become an irreversible trend in commodity production and world trade. This kind of change is the inevitable result of adapting to environmental protection and saving resources in all aspects of concepts, materials, production, and consumption. The main contents of the “green revolution†in the packaging industry include: reducing unnecessary waste, providing renewable products, paying attention to economic benefits and ecological benefits, and not using products that pollute the environment and destroy nature.
About the definition of green packaging and grading objectives The green packaging has the following four aspects: The material is the most provincial, the least waste, and saves resources and energy; easy to recycle and recycling; waste combustion produces new energy without producing Secondary pollution; minimum packaging material and self-decomposition, no pollution to the environment. Based on this, we can give the following definitions for green packaging; we can call it green packaging, which can recycle, re-use or degrade, and appropriate packaging that does not cause harm to the human body and the environment throughout the product's life cycle. .
Green packaging is ideal packaging, and it takes a process to fully meet its requirements. In order to achieve both the direction of the pursuit and the goals that can be achieved in stages, we can formulate green grading grading standards according to the green food grading standards.
Grade A green packaging: refers to waste that can be reused, reused or degraded, and contain toxic substances within the specified limits.
AA grade green packaging: refers to the waste can be recycled, reused or degraded, and does not cause harm to the human body and the environment during the entire product cycle. The toxic substance content is moderately packaged within the specified limits.
The main considerations of the above classification are the waste problems after packaging and use. This is a hot spot for the protection of the environment in the world and is also the main content of the development of green packaging. On this basis, the pollution in the packaging production process is a Efforts have been made for many years, but problems still need to be resolved.
The design of green packaging and the classification of materials Green packaging products are also known as environmental friend packaging or ecological packaging, and are harmless to the ecological environment and human health. The packaging products must be selected from raw materials, manufacturing, use, recycling and disposal of products. The process is comprehensively measured so that it meets the requirements of ecological environmental protection and can maintain a virtuous circle in the natural ecosystem. According to this principle, some professionals have proposed six aspects of the design of green packaging:
1. Package designers should use green packaging materials and design life-span packaging materials as much as possible, which can greatly reduce the environmental pollution caused by discarded packaging.
2, reduce the packaging. Minimize the use of materials in packaging design, eliminate unnecessary packaging, and promote simple packaging to save resources.
3, the packaging material is simple. Use as few materials as possible. Do not mix dissimilar materials for recycling.
4, the packaging design can be disassembled. Packagings that require a composite material structure should be designed as a detachable structure that facilitates recycling after disassembly.
5, packaging materials can be reused. Use recyclable, multiplexed, and recycled packaging to increase the life cycle of the package and reduce packaging waste.
6, the harmlessness of packaging materials. The regulations prohibit the use or reduction of the use of packaging materials containing certain harmful ingredients and stipulate the content of heavy metals.
Green packaging materials are divided into the following categories:
1. Repeated reuse of reusable and recyclable packaging materials, such as glass bottles for beverage packaging, can be used repeatedly. Recycling, that is, regeneration after recycling, there are two methods of regeneration: one is the physical method, refers to the direct and thorough purification and smash, without any residual contaminants, the treated packaging material is used to regenerate packaging containers; the other is The chemical method means that after the recovered plastic is pulverized and washed, the depolymerization agent is used to depolymerize into a monomer or partially depolymerize into an oligomer under the action of a basic catalyst, and the monomer or oligomer is polymerized and regenerated after regeneration. Packaging Materials.
The repeated use and regeneration of packaging materials only prolongs the service life of polymer materials as packaging materials, and when they reach the end of their useful life, they still have to deal with waste disposal and environmental pollution.
2. Edible packaging materials Synthetic edible packaging film matured is the pullulan resin that has been industrialized in the 1970s. It is a non-ionic, non-reducing, stable polysaccharide that is easily dissolved in water and is colorless. Odorless, non-toxic, tough, high oil resistance, can eat.
3. Degradable materials Degradable materials are plastics whose chemical structure changes in a specific environment that causes performance loss in a specific period of time. It not only has the functions and characteristics of traditional plastics, but also can be split and degraded and reduced in the natural world through the action of ultraviolet light in the sunlight or the micro-environment in the soil and water after the service life is completed, and finally reenters the ecology in non-toxic form. In the environment, return to nature.
4. The raw material of paper waste potato is mainly natural plant fiber. It will rot quickly in nature and will not cause pollution to the environment. It can also recycle paper. Pulp molded products not only have the advantages of light weight, low cost, shock resistance, etc., but also have the characteristics of good air permeability, and are widely used in the packaging of fragile, fragile, and afraid of extruded articles.
The application of paper packaging in green packaging Among the four packaging materials: paper, plastic, metal, and glass, paper products have the fastest growth, paper and plastic are the cheapest, raw materials are widely available, and are not as fragile as glass. Also not as heavy as metal, easy to carry. Therefore, paper and plastic packaging are widely used in daily life. The International Health Organization and domestic environmental protection experts believe that domestic and foreign markets will gradually ban the use of plastic bags, and regulations must use environmentally friendly paper bags. Paper products are prone to decay and can either recycle recycled paper or make plant fertilizers, reduce air pollution, and purify the environment. The waste paper imitation plastic packaging materials now developed have good air permeability, flexibility, toughness and strength. The products are non-toxic, non-polluting, rich in raw materials and low in cost, and can be widely used for packaging various products. Therefore, compared with plastic, metal and glass, paper packaging will become one of the most promising green packaging materials.
There are three ways to deal with waste products after paper products are packaged in graves: one is to recycle and reuse paper or continue to make paper products; the other is natural degradation and use as fertilizer; The situation can be burned without producing toxic gases. The recycling of paper packaging waste has the following significance: It can reduce the consumption of natural fiber raw material resources, solve the problem of shortage of packaging resources; greatly reduce production costs, achieve greater social and economic benefits; reduce packaging pollution, To protect the environment, we must actively promote recycling of paper packaging waste.
Eco-friendly ink - The effect of ink in green printing on the environment is very large, and when used in food packaging and printing, the harmful components of ink directly harm the health of consumers. The environmental issues related to inks are:
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 of dust pollution.
3, water-based UV ink It is a new research direction in the field of UV inks. 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. It also provides 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 foreseen that the "green revolution" will surely be an important theme for the global packaging industry in the new century, and it will also be a distinctive feature for the development of the packaging industry in the new century.
The rise of green packaging originated from the proliferation of white pollution. The root cause lies in the increasing packaging waste that comes with the increasing availability of packaging materials and packaging products. Because people ignore the environmental factors in the production and management activities, they ignore the intractable plastic packaging products, and do not recycle the recycled packaging products, causing serious environmental pollution.
"Green revolution" is a major change in the world packaging industry, and it is also a major trend in the development of the packaging industry in the new century. It has become an irreversible trend in commodity production and world trade. This kind of change is the inevitable result of adapting to environmental protection and saving resources in all aspects of concepts, materials, production, and consumption. The main contents of the “green revolution†in the packaging industry include: reducing unnecessary waste, providing renewable products, paying attention to economic benefits and ecological benefits, and not using products that pollute the environment and destroy nature.
About the definition of green packaging and grading objectives The green packaging has the following four aspects: The material is the most provincial, the least waste, and saves resources and energy; easy to recycle and recycling; waste combustion produces new energy without producing Secondary pollution; minimum packaging material and self-decomposition, no pollution to the environment. Based on this, we can give the following definitions for green packaging; we can call it green packaging, which can recycle, re-use or degrade, and appropriate packaging that does not cause harm to the human body and the environment throughout the product's life cycle. .
Green packaging is ideal packaging, and it takes a process to fully meet its requirements. In order to achieve both the direction of the pursuit and the goals that can be achieved in stages, we can formulate green grading grading standards according to the green food grading standards.
Grade A green packaging: refers to waste that can be reused, reused or degraded, and contain toxic substances within the specified limits.
AA grade green packaging: refers to the waste can be recycled, reused or degraded, and does not cause harm to the human body and the environment during the entire product cycle. The toxic substance content is moderately packaged within the specified limits.
The main considerations of the above classification are the waste problems after packaging and use. This is a hot spot for the protection of the environment in the world and is also the main content of the development of green packaging. On this basis, the pollution in the packaging production process is a Efforts have been made for many years, but problems still need to be resolved.
The design of green packaging and the classification of materials Green packaging products are also known as environmental friend packaging or ecological packaging, and are harmless to the ecological environment and human health. The packaging products must be selected from raw materials, manufacturing, use, recycling and disposal of products. The process is comprehensively measured so that it meets the requirements of ecological environmental protection and can maintain a virtuous circle in the natural ecosystem. According to this principle, some professionals have proposed six aspects of the design of green packaging:
1. Package designers should use green packaging materials and design life-span packaging materials as much as possible, which can greatly reduce the environmental pollution caused by discarded packaging.
2, reduce the packaging. Minimize the use of materials in packaging design, eliminate unnecessary packaging, and promote simple packaging to save resources.
3, the packaging material is simple. Use as few materials as possible. Do not mix dissimilar materials for recycling.
4, the packaging design can be disassembled. Packagings that require a composite material structure should be designed as a detachable structure that facilitates recycling after disassembly.
5, packaging materials can be reused. Use recyclable, multiplexed, and recycled packaging to increase the life cycle of the package and reduce packaging waste.
6, the harmlessness of packaging materials. The regulations prohibit the use or reduction of the use of packaging materials containing certain harmful ingredients and stipulate the content of heavy metals.
Green packaging materials are divided into the following categories:
1. Repeated reuse of reusable and recyclable packaging materials, such as glass bottles for beverage packaging, can be used repeatedly. Recycling, that is, regeneration after recycling, there are two methods of regeneration: one is the physical method, refers to the direct and thorough purification and smash, without any residual contaminants, the treated packaging material is used to regenerate packaging containers; the other is The chemical method means that after the recovered plastic is pulverized and washed, the depolymerization agent is used to depolymerize into a monomer or partially depolymerize into an oligomer under the action of a basic catalyst, and the monomer or oligomer is polymerized and regenerated after regeneration. Packaging Materials.
The repeated use and regeneration of packaging materials only prolongs the service life of polymer materials as packaging materials, and when they reach the end of their useful life, they still have to deal with waste disposal and environmental pollution.
2. Edible packaging materials Synthetic edible packaging film matured is the pullulan resin that has been industrialized in the 1970s. It is a non-ionic, non-reducing, stable polysaccharide that is easily dissolved in water and is colorless. Odorless, non-toxic, tough, high oil resistance, can eat.
3. Degradable materials Degradable materials are plastics whose chemical structure changes in a specific environment that causes performance loss in a specific period of time. It not only has the functions and characteristics of traditional plastics, but also can be split and degraded and reduced in the natural world through the action of ultraviolet light in the sunlight or the micro-environment in the soil and water after the service life is completed, and finally reenters the ecology in non-toxic form. In the environment, return to nature.
4. The raw material of paper waste potato is mainly natural plant fiber. It will rot quickly in nature and will not cause pollution to the environment. It can also recycle paper. Pulp molded products not only have the advantages of light weight, low cost, shock resistance, etc., but also have the characteristics of good air permeability, and are widely used in the packaging of fragile, fragile, and afraid of extruded articles.
The application of paper packaging in green packaging Among the four packaging materials: paper, plastic, metal, and glass, paper products have the fastest growth, paper and plastic are the cheapest, raw materials are widely available, and are not as fragile as glass. Also not as heavy as metal, easy to carry. Therefore, paper and plastic packaging are widely used in daily life. The International Health Organization and domestic environmental protection experts believe that domestic and foreign markets will gradually ban the use of plastic bags, and regulations must use environmentally friendly paper bags. Paper products are prone to decay and can either recycle recycled paper or make plant fertilizers, reduce air pollution, and purify the environment. The waste paper imitation plastic packaging materials now developed have good air permeability, flexibility, toughness and strength. The products are non-toxic, non-polluting, rich in raw materials and low in cost, and can be widely used for packaging various products. Therefore, compared with plastic, metal and glass, paper packaging will become one of the most promising green packaging materials.
There are three ways to deal with waste products after paper products are packaged in graves: one is to recycle and reuse paper or continue to make paper products; the other is natural degradation and use as fertilizer; The situation can be burned without producing toxic gases. The recycling of paper packaging waste has the following significance: It can reduce the consumption of natural fiber raw material resources, solve the problem of shortage of packaging resources; greatly reduce production costs, achieve greater social and economic benefits; reduce packaging pollution, To protect the environment, we must actively promote recycling of paper packaging waste.
Eco-friendly ink - The effect of ink in green printing on the environment is very large, and when used in food packaging and printing, the harmful components of ink directly harm the health of consumers. The environmental issues related to inks are:
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 of dust pollution.
3, water-based UV ink It is a new research direction in the field of UV inks. 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. It also provides 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 foreseen that the "green revolution" will surely be an important theme for the global packaging industry in the new century, and it will also be a distinctive feature for the development of the packaging industry in the new century.
Poly l lactic acid is a synthetic Dermal Filler that is injected into your face, causing your body's own production of collagen. This type of dermal filler is known as a stimulator. This non-toxic, biodegradable substance has been used for more than 40 years as suture material.
As we age, the fat, muscles, bone, and skin in our face begins to thin. This loss of volume leads to either a sunken or sagging appearance of the face. Injectable poly-l-lactic acid is used to create structure, framework, and volume to the face. PLLA is known as a bio-stimulatory dermal filler, this means it stimulates your own skin to produce new collagen. Over time your skin breaks down PLLA into water and carbon dioxide. The effects of PLLA appear gradually over a few months, producing natural results.
What should first be done before considering injectable poly-l-lactic acid?
First, an dermatologist will review the patient`s medical history and examine the condition to be treated. Areas to be treated should be kept clean. If there is a skin infection, then treatment needs to be postponed until it resolves. Patients who take blood thinners (such as aspirin, ibuprofen, certain herbal medications) should stop them two weeks prior to injection with the approval of their prescribing doctor.
Your doctor will evaluate the areas of your face needing improvement in structure and/or volume. Topical or injection numbing medication may be used for added comfort prior to your procedure. For additional patient comfort lidocaine, an anesthetic, is mixed with PLLA prior to the treatment. Using a syringe, poly-l-lactic acid is injected into the hollow areas of your face and/or areas requiring improved structure. Multiple treatment sessions with PLLA are needed which are often spaced at one month intervals. The effects of PLLA typically last up to 24 months. After that, additional injections are required to maintain the effect.
Is injectable poly-l-lactic acid painful?
Topical numbing agents or anesthetic injections are sometimes applied to ease discomfort. Also, lidocaine is commonly added to PLLA for improved patient comfort. Before and following treatment, ice may be given to ease discomfort and swelling. Patients are encourage to massage the treatment areas for the first 5 days, 5 times a day, for 5 minutes each. We call this the 5-5-5 rule.
What can I expect after having had PLLA?
PLLA fillers are temporary, lasting up to two years, depending on the patient. Most patients require maintenance treatments to achieve the best results.
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