1. Aluminum Plating and Flexible Packaging In the past few years, the application of aluminized films in flexible packaging has increased substantially. The reason why the market is rapidly expanding is due to the technical factors of the aluminized film and the economy of processing and manufacturing. Factors, environmental protection factors.
2, the basic principles of high vacuum coating High vacuum coating means that under high vacuum conditions, aluminum wire will be melted and evaporated through high temperature, aluminum vapor deposition adsorbed on the surface of flexible materials, so that these surfaces have a metallic luster, forming a protective layer, with The technical characteristics allow it to be adapted to the specific use of the final product of the flexible package.
The thin film material that needs to be deposited is placed at the raw material. The film is passed through a series of guide rollers in a certain way. It is connected to the receiving shaft and placed in a sealed vacuum chamber. A three-stage vacuum pump is used to draw vacuum. When the vacuum chamber is used When the vacuum degree in the medium reaches 10 negative squares or more, the pre-installed evaporation boat starts to heat up. After the temperature reaches 1400°C or more, the aluminum wire begins to evaporate and evaporate. The aluminum-plated substrate runs at 400-600 m/min. At the speed, aluminum evaporation is adsorbed on the surface of the film by covering the area where aluminum evaporates from the evaporation boat; the temperature of aluminum-plated film is generally high, so cooling is required, otherwise the shape and properties of the film will change. The use of the user brings unexpected problems, so we use a cooling system that can achieve minus 5°C - minus 10°C. The temperature of the cooled aluminized film can be controlled within an appropriate range: We use infrared automatic film thickness detection Instrument to detect the appearance of aluminized film aluminized film and Other indicators.
3. The characteristics of the aluminum film (1) Appearance: Because the aluminized film has a high metallic luster and good reflectivity, the use of an aluminized film in a flexible package can form a strong color contrast with the ink. Increase the reflection of light, make packaging produce a very eye-catching optical effect, increase the appearance of the product.
(2) Barrier property: After the film is vacuum-plated, it can greatly improve the barrier property of the film material. For some products that need to extend the shelf life, it is a good choice to use a flexible package of vacuum aluminized film.
(3) Low cost and good processing performance Compared with aluminum foil, VMPET has a large price advantage. The establishment is equivalent to only half of aluminum foil.
Aluminized film substrates have good physical and mechanical properties. In the composite processing, it is not prone to knead, wrinkle, and fracture, which is beneficial to increase the production efficiency and the rate of qualified products; the aluminum plating film is conductive and can avoid quality problems or failures caused by static electricity during the processing. More safety in production, especially when packaging powdered articles, because the aluminized film can play a role in eliminating static electricity and ensure good sealing performance.
(4) Conformity to environmental protection requirements The main energy source for aluminizing products is electricity. No waste water or exhaust gas will be generated during the production process. The residue alumina can be recycled and reused; in addition, very little aluminum is deposited on the surface of the aluminized film during aluminum plating. (usually only 350-400 angstroms), so it can be considered that the nature of its substrate is not changed; from the perspective of environmental protection, the aluminum-plated film is a "single material", so they can be split more easily. Circulation or incineration.
Vacuum aluminum plating film development trend
1. Development trend of vacuum coating machine, widening, high speed, automation
2. Paper Aluminizing: Due to environmental protection factors, the varieties and output of paper aluminum plating will have greater development.
3. Pattern aluminum plating.
2, the basic principles of high vacuum coating High vacuum coating means that under high vacuum conditions, aluminum wire will be melted and evaporated through high temperature, aluminum vapor deposition adsorbed on the surface of flexible materials, so that these surfaces have a metallic luster, forming a protective layer, with The technical characteristics allow it to be adapted to the specific use of the final product of the flexible package.
The thin film material that needs to be deposited is placed at the raw material. The film is passed through a series of guide rollers in a certain way. It is connected to the receiving shaft and placed in a sealed vacuum chamber. A three-stage vacuum pump is used to draw vacuum. When the vacuum chamber is used When the vacuum degree in the medium reaches 10 negative squares or more, the pre-installed evaporation boat starts to heat up. After the temperature reaches 1400°C or more, the aluminum wire begins to evaporate and evaporate. The aluminum-plated substrate runs at 400-600 m/min. At the speed, aluminum evaporation is adsorbed on the surface of the film by covering the area where aluminum evaporates from the evaporation boat; the temperature of aluminum-plated film is generally high, so cooling is required, otherwise the shape and properties of the film will change. The use of the user brings unexpected problems, so we use a cooling system that can achieve minus 5°C - minus 10°C. The temperature of the cooled aluminized film can be controlled within an appropriate range: We use infrared automatic film thickness detection Instrument to detect the appearance of aluminized film aluminized film and Other indicators.
3. The characteristics of the aluminum film (1) Appearance: Because the aluminized film has a high metallic luster and good reflectivity, the use of an aluminized film in a flexible package can form a strong color contrast with the ink. Increase the reflection of light, make packaging produce a very eye-catching optical effect, increase the appearance of the product.
(2) Barrier property: After the film is vacuum-plated, it can greatly improve the barrier property of the film material. For some products that need to extend the shelf life, it is a good choice to use a flexible package of vacuum aluminized film.
(3) Low cost and good processing performance Compared with aluminum foil, VMPET has a large price advantage. The establishment is equivalent to only half of aluminum foil.
Aluminized film substrates have good physical and mechanical properties. In the composite processing, it is not prone to knead, wrinkle, and fracture, which is beneficial to increase the production efficiency and the rate of qualified products; the aluminum plating film is conductive and can avoid quality problems or failures caused by static electricity during the processing. More safety in production, especially when packaging powdered articles, because the aluminized film can play a role in eliminating static electricity and ensure good sealing performance.
(4) Conformity to environmental protection requirements The main energy source for aluminizing products is electricity. No waste water or exhaust gas will be generated during the production process. The residue alumina can be recycled and reused; in addition, very little aluminum is deposited on the surface of the aluminized film during aluminum plating. (usually only 350-400 angstroms), so it can be considered that the nature of its substrate is not changed; from the perspective of environmental protection, the aluminum-plated film is a "single material", so they can be split more easily. Circulation or incineration.
Vacuum aluminum plating film development trend
1. Development trend of vacuum coating machine, widening, high speed, automation
2. Paper Aluminizing: Due to environmental protection factors, the varieties and output of paper aluminum plating will have greater development.
3. Pattern aluminum plating.
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