Packaging is one of the most important applications for plastic materials. Especially for thermoplastic materials, the demand and development of packaging industry directly change or guide the development direction of plastic materials manufacturing and processing technology. With the economic development, people's living standards continue to increase. The packaging industry, which is increasingly associated with people's work and life, has also ushered in a golden period of development. In order to provide people with convenient life, lightweight plastic packaging materials have become one of the development directions of the plastic packaging industry.
Plastic packaging tends to be lightweight to reduce weight. It is beneficial to the environment and the profitability of the company. Lightweighting is currently a common industrial term used to describe the practice of weight reduction by using fewer materials to produce packaging. Generally speaking, plastic bottles, plastic cans, plastic hoses, and plastic lids are more likely to achieve weight reduction goals.
After a plastic package has been successfully weight-reduced, fewer resin materials are needed in the injection molding process. Because of the use of less packaging materials, lightweight packaging is very beneficial to the environment, but this is not her The only advantage, lightweight packaging also has the advantage of using more, for example, can effectively reduce the cost of materials.
Lightweight plastic packaging can ease people's concerns about environmental protection and sustainable development. More and more people choose products with better packaging, faster production speeds, stronger packaging, and reduced weight. Today's companies sell products in large quantities. At the same time, a small reduction in the amount of resin used on each package can bring considerable economic benefits to the company. In particular, under the premise that the price of resin materials has never been raised before, more and more companies are increasingly sending lighter packages. interest.
In order to reduce the amount of resin used for plastic bottles or caps, the process of injection molding needs to be changed, and the continuous injection molding technology with strips is used instead of the retraction injection molding technology to complete the injection molding process of the container caps, stripping the material strips at the center of the molds and changing the bottles. The thread of the cover can reduce the weight of the cover and achieve the goal of lightweighting.
The plastic packaging industry presents three major trends:
First, plastic packaging will go to low-cost, high-performance second, plastic packaging will go green, plastic packaging waste has aroused widespread concern in the community. Strengthen the scientific management and use of plastic packaging, maximize the recycling of waste plastics, and gradually develop and use biodegradable plastics. In China, the development of biodegradable plastics is greatly promoted. It is imperative to vigorously develop and promote the use of biodegradable plastics. .
Third, plastic packaging will be lightweight, reducing the weight of the package. Lighter weight refers to the use of less material to produce the packaging. The weight reduction of the packaging is beneficial to both the environment and the enterprise. In general, plastic bottles, Plastic containers, plastic hoses, and plastic lids make it easier to achieve weight savings. Lightweight plastic packaging can ease people’s concerns about environmental protection and sustainable development. More and more people choose products that are better packaged, have faster production speeds, have stronger packaging, and reduce weight. Today’s companies sell products in large quantities. At the same time, a small reduction in the amount of resin used on each package can bring considerable economic benefits to the company. In particular, under the premise that the price of resin materials has never been raised before, more and more companies are increasingly sending lightweight packages. interest.
According to reports, as people continue to improve their living environment and environmental quality, green, environmentally friendly, low-carbon plastic packaging will be more and more respected by people. Plastic packaging has been developed from food packaging to industrial packaging, pharmaceutical packaging, building material packaging, and cosmetics packaging. Its scope of use and prospects will be more and more broad.
High-barrier flexible packaging is a development trend High-barrier flexible packaging for foods and pharmaceuticals will accelerate development. As the main substrate of the BOPP film, its production will gradually develop to co-extrusion with multiple layers, and three-layer and five-layer films will become more common. At the same time, PET film will replace BOPP film in more fields because of its better barrier properties.
The use of PVDC, nylon and EVOH barrier films will gradually increase. In particular, PVDC composite membranes will find wider application in the food packaging field.
In addition, a large number of multifunctional composite membranes will be further refined in terms of functionality. For example, special treatment of PP can be used to make damp-proof membranes, anti-condensation membranes, vapor-proof membranes, adjustable moisture membranes, etc.; special PE membranes can be made Corrosion-resistant film, anti-dust film and anti-skid film, etc.; and biaxially-stretched nylon 66 heat-resistant film can obtain higher heat-resistant temperature than biaxially-stretched nylon 6 film, and can withstand high temperature of 140°C; transparency of non-crystalline nylon film Similar to glass, it can preserve color, aroma, taste, and maintain the stability of the nutritional indicators and taste quality of the interior food.
Plastic packaging tends to be lightweight to reduce weight. It is beneficial to the environment and the profitability of the company. Lightweighting is currently a common industrial term used to describe the practice of weight reduction by using fewer materials to produce packaging. Generally speaking, plastic bottles, plastic cans, plastic hoses, and plastic lids are more likely to achieve weight reduction goals.
After a plastic package has been successfully weight-reduced, fewer resin materials are needed in the injection molding process. Because of the use of less packaging materials, lightweight packaging is very beneficial to the environment, but this is not her The only advantage, lightweight packaging also has the advantage of using more, for example, can effectively reduce the cost of materials.
Lightweight plastic packaging can ease people's concerns about environmental protection and sustainable development. More and more people choose products with better packaging, faster production speeds, stronger packaging, and reduced weight. Today's companies sell products in large quantities. At the same time, a small reduction in the amount of resin used on each package can bring considerable economic benefits to the company. In particular, under the premise that the price of resin materials has never been raised before, more and more companies are increasingly sending lighter packages. interest.
In order to reduce the amount of resin used for plastic bottles or caps, the process of injection molding needs to be changed, and the continuous injection molding technology with strips is used instead of the retraction injection molding technology to complete the injection molding process of the container caps, stripping the material strips at the center of the molds and changing the bottles. The thread of the cover can reduce the weight of the cover and achieve the goal of lightweighting.
The plastic packaging industry presents three major trends:
First, plastic packaging will go to low-cost, high-performance second, plastic packaging will go green, plastic packaging waste has aroused widespread concern in the community. Strengthen the scientific management and use of plastic packaging, maximize the recycling of waste plastics, and gradually develop and use biodegradable plastics. In China, the development of biodegradable plastics is greatly promoted. It is imperative to vigorously develop and promote the use of biodegradable plastics. .
Third, plastic packaging will be lightweight, reducing the weight of the package. Lighter weight refers to the use of less material to produce the packaging. The weight reduction of the packaging is beneficial to both the environment and the enterprise. In general, plastic bottles, Plastic containers, plastic hoses, and plastic lids make it easier to achieve weight savings. Lightweight plastic packaging can ease people’s concerns about environmental protection and sustainable development. More and more people choose products that are better packaged, have faster production speeds, have stronger packaging, and reduce weight. Today’s companies sell products in large quantities. At the same time, a small reduction in the amount of resin used on each package can bring considerable economic benefits to the company. In particular, under the premise that the price of resin materials has never been raised before, more and more companies are increasingly sending lightweight packages. interest.
According to reports, as people continue to improve their living environment and environmental quality, green, environmentally friendly, low-carbon plastic packaging will be more and more respected by people. Plastic packaging has been developed from food packaging to industrial packaging, pharmaceutical packaging, building material packaging, and cosmetics packaging. Its scope of use and prospects will be more and more broad.
High-barrier flexible packaging is a development trend High-barrier flexible packaging for foods and pharmaceuticals will accelerate development. As the main substrate of the BOPP film, its production will gradually develop to co-extrusion with multiple layers, and three-layer and five-layer films will become more common. At the same time, PET film will replace BOPP film in more fields because of its better barrier properties.
The use of PVDC, nylon and EVOH barrier films will gradually increase. In particular, PVDC composite membranes will find wider application in the food packaging field.
In addition, a large number of multifunctional composite membranes will be further refined in terms of functionality. For example, special treatment of PP can be used to make damp-proof membranes, anti-condensation membranes, vapor-proof membranes, adjustable moisture membranes, etc.; special PE membranes can be made Corrosion-resistant film, anti-dust film and anti-skid film, etc.; and biaxially-stretched nylon 66 heat-resistant film can obtain higher heat-resistant temperature than biaxially-stretched nylon 6 film, and can withstand high temperature of 140°C; transparency of non-crystalline nylon film Similar to glass, it can preserve color, aroma, taste, and maintain the stability of the nutritional indicators and taste quality of the interior food.
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