Discussion on vacuum aluminized paper 1 in green p

2022-10-04
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Talking about vacuum aluminized paper in green packaging materials

first, preface

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vacuum aluminized paper is a new type of green packaging material foam granule machine material widely used in the packaging industry since the 1980s. At present, the largest application markets of vacuum aluminized paper are North America and Europe, which account for 80% of the world market. The annual consumption of vacuum aluminized paper in North America is 120000 tons; The annual consumption of vacuum aluminized paper in Europe is 90000 tons. Over the past decade, the growth rate of vacuum aluminized paper in North America and Europe has reached more than 6%. Therefore, the rapid development of vacuum aluminized paper in the Asia Pacific region is the general trend, and the prospect is optimistic

II. The prominence of vacuum aluminized paper in packaging materials

vacuum aluminized paper has incomparable advantages over aluminum foil composite paper, as follows:

he has 39 years of experience in the plastic industry. 1. Cost: the cost of aluminum plating is lower than that of aluminum foil composite. It mainly depends on reducing the thickness of the metal layer, improving the speed of the production line, improving the design and material management to achieve the purpose of reducing costs. Firstly, the thickness of aluminum layer of aluminized paper is only 0.025um ~ 0.035um, which is 1/200 ~ 1/300 of aluminum used in aluminum foil composite paper, that is, the amount of aluminum used is small; Secondly, it is suitable for high-speed printing, which is about 200 packs/minute higher than the cigarette label made of aluminum foil composite paper; In addition, PET film can be used repeatedly for 6 ~ 8 times. Therefore, the cost of vacuum aluminized paper can be saved by 10% compared with aluminum foil paper

2. environmental protection and hygiene: Although aluminum foil gold and silver cardboard and PET composite cardboard have become high-end packaging materials with good decorative and anti-counterfeiting properties, they are non environmental protection materials. Aluminum foil gold and silver cardboard is a composite product of aluminum foil and paper. The thickness of aluminum foil is 7um, so it can not be recycled as aluminum products or paper, and can not be completely burned, which is not conducive to environmental protection. PET composite paperboard is a composite product of aluminized film and paper. Because the plastic film cannot be degraded, it is not conducive to environmental protection. Aluminized paper is an environmentally friendly product because it uses the least aluminum material, so it is easy to process and recycle. In addition, the raw and auxiliary materials used in the production of aluminized paper are odorless, non-toxic, in line with FDA standards, and hygienic

3. anti counterfeiting: vacuum aluminized paper is easy to be processed by laser holography. The processed vacuum aluminized paper is called laser aluminized paper (laser paper for short). Laser aluminum spray paper is made by loading laser holographic patterns or text signals onto the surface of aluminum spray paper by molding. The laser brightness of laser aluminum spray paper is higher than that of ordinary laser packaging machine 'target'=_ Blank> the brightness of the transparent film is several times stronger, and the laser pattern cannot be erased. Moreover, the production of laser aluminum spray paper to improve the compressive strength process is more complex, with high scientific and technological content and large equipment investment, which makes fake and shoddy products prohibitive. Therefore, laser aluminum spray paper has good anti-counterfeiting property

4. Wide range of application: aluminized paper is widely used in the packaging of cigarettes, alcohol, food, drugs and daily necessities in daily life. The aluminized paperboard with white cardboard as the base material can be applied to the outer packaging of hard packed cigarettes and wine packaging boxes after printing. The aluminized paper made of imported wood pulp base paper can be used for the label of glass bottles. The use of aluminized paper in food and drug packaging can solve the problem that powder drugs packaged with composite packaging film are not easy to pour out because of electrostatic attraction. Aluminized paper can be divided into low gram weight (less than 50g) and high gram weight (more than 300g). Low gram heavy aluminized paper not only has the flexibility of paper, but also has the air barrier performance of aluminum foil composite paper. It is mainly used for the packaging of candy, chocolate, gum and other products, but its application in cigarette lining paper is still in the experimental stage and has not yet entered the batch use; The transparent and colorful ink printed on high-G heavy-duty aluminized cardboard can show noble and rich metallic luster. It is mainly used for the outer packaging of moon cake boxes, cosmetics boxes, toothpaste boxes, wine boxes and gift boxes. It is exquisite and luxurious, and can enhance the value of products

III. process of vacuum aluminized paper

vacuum aluminized paper is formed by heating the aluminum wire to about 1400 ℃ in high vacuum air above 1.33 102pa with resistance, high frequency or electron beam, vaporizing and adhering to the paper base. According to its production process, it can be divided into direct method (paper aluminizing) and transfer method (film aluminizing). The direct method is to coat the paper surface in advance to improve the flatness and brightness of the paper surface, and then put the paper directly into the vacuum aluminizing machine for aluminizing. This method has high requirements for paper, and is suitable for coated paper, whiteboard, cardboard and other paper types of 40 ~ 120g/m2. The transfer method takes pet and BOPP films as the transfer substrate, and after coating, coloring, aluminum spraying, compounding, stripping and other processes, the aluminum spraying molecular layer with metallic luster is transferred to the surface of paper or paperboard through adhesive action

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