Packaging new materials: vacuum aluminum coated cardboard and laser sprayed aluminum paper

Vacuum aluminum coated cardboard is a kind of metallic glossy cardboard, which is a high-grade and novel packaging material developed in recent years. This kind of paper has bright color, strong metallic sensibility, and bright and elegant prints. It can replace the large-area gilding of printed materials, and it also serves as a icing on the cake for the beautification of products.

1, vacuum aluminum plated paper jam

Vacuum aluminum coated cardboard is different from aluminum aluminum cardboard and pet laminated cardboard. Aluminum aluminum cardboard is a combination of aluminum foil and cardboard. Pet laminated cardboard is a combination of aluminum foil and cardboard. Aluminum foil and plastics on the surface cannot achieve biodegradable and recyclable environmental properties and cannot be used as green packaging in the world. Vacuum aluminum-plated paper is a novel green packaging material widely used in the packaging industry since the 1980s. Because of the method of vacuum aluminum plating, only a layer of 0.25-0.3 micron thin and bright aluminum layer is covered on the surface of the cardboard, which is only one-fifth of the aluminum foil aluminum foil layer, so it is With noble and beautiful metal texture, it also has degradable and recyclable environmental protection properties. It is a kind of green packaging material.

Vacuum aluminum-plated paper according to its production process is divided into direct evaporation method (paper surface aluminum plating) and transfer evaporation method (film surface aluminum plating) two, the direct method is to place the paper directly in the vacuum aluminum plating machine for aluminum plating Method, the transfer method is the pet film placed in the vacuum aluminum plating machine after aluminizing, glue and paper composite, and then peel pet film, aluminum molecular layer transferred to the cardboard surface by adhesive. Aluminizing paper produced by direct evaporation method, the aluminized layer and the loose structure of each coating along the paper surface fiber, the surface is fine with fine pores, the smoothness is poor, and its flatness is not yet suitable for the printing and transfer evaporation of the packaging. The aluminized paper produced by the method, the aluminized layer is used PET film transfer and paper bonding, the aluminum film is good flatness, strong metal luster, high smoothness, more suitable for packaging printing. Compared with the direct evaporation method, the transfer evaporation method also has the following characteristics: It can make full use of the flatness of the pet film to make the metal gloss of the paper brighter; it can produce various patterns of laser anti-counterfeit vacuum aluminum-coated paperboard.

Vacuum aluminum plated packaging material is a new type of composite environmental protection packaging material. It gradually replaced aluminum foil composite paper as aluminum paper substrate. It is a green packaging material that is conducive to environmental protection because it has a green and environmental-friendly property that can be recycled and can be degraded in the soil, and it can save metal resources. At present, most countries in Europe use vacuum aluminum-plated paper instead of plastic film and aluminum-backed packaging paper for packaging such as gifts, toys, food, tobacco and alcohol, and daily chemical products.

2, laser spray aluminum paper

Laser sprayed aluminum paper (referred to as laser paper) is a laser holographic pattern or text signal is loaded onto the surface of the aluminum spray paper by molding. Vacuum aluminum-plated paper according to the production process can be divided into direct (aluminum paper surface) and transfer method (film surface spray aluminum) two. The direct method is a method in which the paper is directly placed on a vacuum aluminizing machine for spraying aluminum. This method is limited to aluminum spray paper. The transfer method is to place the pet film or laser pet film on the glued horse paper or paperboard composite, and then the pet film is peeled off (the pet film can be used repeatedly), and the aluminum molecular layer is transferred to the paper or cardboard through the adhesive action. The transfer method can produce random anti-counterfeit vacuum aluminized paper or cardboard with random patterns, arbitrary letters.

Due to the complex production technology of the transfer aluminum spray method, high technological content, and large investment in equipment, it is difficult for ordinary small and medium-sized enterprises to imitate. In the anti-counterfeiting packaging materials, the transfer aluminum spray method has unique advantages. The international packaging industry puts forward five comprehensive indicators for anti-counterfeit packaging materials: First, the timeliness. Anti-counterfeiting packaging must be the latest scientific and technological achievements. In a certain period of time, such scientific and technological achievements are generally difficult for enterprises to grasp and therefore difficult to counterfeit. The longer the time for this anti-counterfeiting technology to stay ahead, the better the anti-counterfeiting effect. The second is aesthetics. The third is identification. The anti-counterfeiting effect must be clear to consumers at the time of purchase. The fourth is versatility. Advanced anti-counterfeit packaging materials must have universal application in the printing and packaging industry. Manufacturers do not need to add additional equipment, without special training can be applied to the production of conventional packaging materials. Fifth, economy. Advanced anti-counterfeiting packaging materials must have high technology content, and the price can be accepted by the market, so that the goods will increase profit for the manufacturer on the basis of eliminating counterfeiting.

These five highly demanding comprehensive indicators have been a problem that has plagued the packaging industry for many years. The excellent characteristics of laser anti-counterfeit vacuum ejector paper (card) are extremely close to the above five comprehensive indicators and are an ideal anti-counterfeit packaging. Materials, its application prospects are extremely broad.