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2024.07.30

Laser film characteristics (II)

Laser film characteristics (II)

Flexible laser holographic anti-counterfeiting film The flexible laser holographic anti-counterfeiting film includes a film base layer, a reflective layer, and an anti-counterfeiting identification layer. Its structural features: the reflective layer is a layer of high-refractive-index resin coated on the film layer, and the anti-counterfeiting identification layer is a grating printed on the resin reflective layer to form a laser holographic pattern. The material of the film base layer can be selected from BOPP, PET, and PE; the resin reflective layer is a polyurethane resin, polyphenyl resin, and amino resin that can play a single-layer high-refractive role. By coating a layer of resin reflective layer on the film base layer and then printing a laser holographic image layer on the resin reflective layer, a practical flexible transparent laser holographic anti-counterfeiting film can be made.

2024-07-30

2024.07.30

Laser film characteristics (I)

Laser film characteristics (I)

OPP laser film, PET laser film, BOPP laser film, film as packaging materials has been widely used in commodity packaging, and the use of anti-counterfeiting film is also a hot spot in the current anti-counterfeiting technology research, and there are many anti-counterfeiting films used for packaging and certificate printing. And received a good anti-counterfeiting effect.

2024-07-30

2024.07.30

The production process principle of laser film

The production process principle of laser film

The production process of laser film is relatively complicated. It adopts the vacuum chamber aluminum plating method. The evaporation boat is heated to 1400-1500℃, and the aluminum wire continuously sent to the evaporation boat is cooled into aluminum vapor. Due to the electrostatic adsorption force of the base film, the aluminum molecules are adsorbed on the surface of the film, and then after cooling and deposition, the aluminum is evenly sprayed on the surface of the continuously rolled film to form an aluminized film. The laser engraved laser plate is then wrapped on a roller and molded at a temperature of 130℃ to form a laser film. The laser plate is wrapped on the roller and cannot be seamlessly combined, so a 0.5mm-2mm plate seam is left on the laser film.

2024-07-30

2022.07.28

What is CPP aluminum film

What is CPP aluminum film

CPP coated aluminum is an industrial packaging material. CPP is the abbreviation of cast polypropylene, and its Chinese name is cast polypropylene. This is very common in daily life. For example, the inner layer of the bagged milk and some boxed beverages we drink is made of this material.

2022-07-28

2022.01.10

Introduction to Vacuum Aluminum Plating Process

Introduction to Vacuum Aluminum Plating Process

Vacuum aluminum plating is to heat and melt aluminum metal in a vacuum state until it evaporates, and aluminum atoms condense on the surface of polymer materials to form an extremely thin aluminum layer. Vacuum aluminum plating requires that the substrate surface is smooth, flat, and uniform in thickness; the stiffness and friction coefficient are appropriate; the surface tension is greater than 38dyn/cm'; the thermal performance is good and can withstand the heat radiation and condensation heat of the evaporation source; the moisture content of the substrate is less than 0.1%. Commonly used aluminum-plated substrates include polyester (PET), polypropylene (PP), polyamide (N), polyethylene (PE), polyvinyl chloride (PVC) and other films. Process requirements: The vacuum degree must not be lower than 10-3Pa to avoid brown stripes or uneven thickness of the aluminum layer; control the system tension, turn on the cooling system to avoid the film from being stretched and deformed by heat; accurately control the winding speed (280-320m/min), aluminum feeding speed (0.4-0.7m/min, 2mm diameter aluminum wire) and evaporation boat heating current to obtain the aluminum layer thickness required by the product (100-300A); a certain amount of primer can be applied to the film in advance and fully dried, and then vacuum aluminum plating can improve the bonding force between the aluminum layer and the film. Then apply a certain amount of protective resin on the aluminum film to prevent the aluminum layer from oxidizing and deteriorating. The aluminum-plated film formed by this process is friction-resistant and not easy to deteriorate.

2022-01-10

2021.11.12

What are the benefits of reflective film printing?

What are the benefits of reflective film printing?

1. Reflective film printing can replace lettering. The disadvantage of lettering is that one face may have several colors, and it needs to be engraved several times to complete the required color. Then it is manually pasted on the base plate little by little according to the position and proportion. There are many processes and it is difficult to ensure the quality. It consumes time, manpower and cost. The actual cost is higher than the printing cost.

2021-11-12

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