PVDC coating film is a kind of "green" plastic packaging material with excellent performance and worthy of wide promotion.
PVDC, polyvinylidene dichloride, is a light yellow, powdery, high barrier material. In addition to the general properties of plastics, it also has self-extinguishing properties, oil resistance, good taste and excellent moisture, mold and other properties, but also has excellent printing and heat sealing properties.
PVDC is the best packaging material in the world today for its comprehensive barrier properties in plastic packaging. It is different from polyvinyl alcohol, and its gas barrier property drops sharply with the increase of moisture absorption. It is also different from the fact that the nylon membrane deteriorates the moisture-blocking performance due to its water absorption, but it is a high-barrier property with excellent moisture resistance and gas barrier properties. material. Experiments have shown that within 24 hours, at a temperature of 30.8°C and a relative humidity of 90%, the air permeability is less than 26.4mI per square meter, while nylon is about 40.3mI. It is 3875 to 13020mI. From the comparison of this set of figures, it can be seen that the barrier performance of PVDC is several times, several times or even several hundred times that of ordinary packaging materials. Therefore, packaging foods with this material has an excellent protective effect on the color, aroma and taste of foods. At the same time, it is very effective for moisture-proof foods, which can double the length of the food preservation period, and greatly reduce the deterioration of food due to various factors such as seasonal changes. It is understood that the current proportion of domestic food packaging companies using PVDC in the actual packaging applications is very small, and the cost of producing such materials is not high, so the application of this material in food packaging has a promising future.
The use of PVDC composite packaging than ordinary PE film, paper, aluminum foil and other packaging, the amount of material to be reduced much, so as to achieve the purpose of reducing packaging and reduce waste sources. In view of the fact that the level of food packaging in our country is still relatively backward, relevant experts pointed out that the promotion of the use of PVDC materials not only can improve the packaging product quality in China, but also can reduce the losses caused by product packaging, thereby enhancing market competitiveness and establishing a new corporate image. . It can be predicted that in the future packaging industry, the full and reasonable use of PVDC coating film will gradually become the mainstream of the packaging industry in China, and food consumption will be greatly reduced.
PVDC, polyvinylidene dichloride, is a light yellow, powdery, high barrier material. In addition to the general properties of plastics, it also has self-extinguishing properties, oil resistance, good taste and excellent moisture, mold and other properties, but also has excellent printing and heat sealing properties.
PVDC is the best packaging material in the world today for its comprehensive barrier properties in plastic packaging. It is different from polyvinyl alcohol, and its gas barrier property drops sharply with the increase of moisture absorption. It is also different from the fact that the nylon membrane deteriorates the moisture-blocking performance due to its water absorption, but it is a high-barrier property with excellent moisture resistance and gas barrier properties. material. Experiments have shown that within 24 hours, at a temperature of 30.8°C and a relative humidity of 90%, the air permeability is less than 26.4mI per square meter, while nylon is about 40.3mI. It is 3875 to 13020mI. From the comparison of this set of figures, it can be seen that the barrier performance of PVDC is several times, several times or even several hundred times that of ordinary packaging materials. Therefore, packaging foods with this material has an excellent protective effect on the color, aroma and taste of foods. At the same time, it is very effective for moisture-proof foods, which can double the length of the food preservation period, and greatly reduce the deterioration of food due to various factors such as seasonal changes. It is understood that the current proportion of domestic food packaging companies using PVDC in the actual packaging applications is very small, and the cost of producing such materials is not high, so the application of this material in food packaging has a promising future.
The use of PVDC composite packaging than ordinary PE film, paper, aluminum foil and other packaging, the amount of material to be reduced much, so as to achieve the purpose of reducing packaging and reduce waste sources. In view of the fact that the level of food packaging in our country is still relatively backward, relevant experts pointed out that the promotion of the use of PVDC materials not only can improve the packaging product quality in China, but also can reduce the losses caused by product packaging, thereby enhancing market competitiveness and establishing a new corporate image. . It can be predicted that in the future packaging industry, the full and reasonable use of PVDC coating film will gradually become the mainstream of the packaging industry in China, and food consumption will be greatly reduced.
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