As a new type of alternative product, a waterborne and environment-friendly vacuum aluminum-plating primer, due to rational molecular design and modification, successfully solved many high-tech problems of water as a solvent, and the coated paper can be degraded and regenerated. Recyclable, in line with international environmental protection packaging 1501400 requirements, has important practical significance for the development of the packaging industry.
The so-called direct aluminum plating pre-coating process is: coating the coated paper surface with a layer of glue or a layer of PE film, in order to improve the surface smoothness, gloss and smoothness of the paper, so as to make it more structured and effective. Aluminum powder forms a perfect coating.
Paper aluminum is an important means for the modern production of composite materials. With paper as the substrate for aluminum plating, its surface state has an important influence on aluminum plating. When aluminum films are directly deposited on the surface of paper, the paper must be pre-coated to make the paper surface Smoothness ensures high metallic luster coating.
Therefore, the quality of the coating agent and the thickness of the coating directly affect the gloss of the coated paper.
At present, there are mainly three types of primers for vacuum aluminum-plated paper: 1. Solvent-based coating agents. Such coating agents use organic solvents as diluents. After coating with solvent-based coating, the brightness of the metal film is better after the vacuum metallization, but the requirement for the coating machine is high. If there is no solvent recovery equipment, it will cause great pollution to the environment and damage the operator. Health.
2. Aqueous coating agent. Such water-based coating agents do not require a high level of coating machines, but there are a series of technical differences such as low brightness and poor heat resistance of the coating film, and this is currently the area with the greatest potential for development.
3. UV and EBc coating agents UV-ray and electron beam curing coating agent.
The gloss is best after vacuum aluminum plating, but it is expensive.
Existing domestic aluminum vacuum coating agent is mainly organic solvent type, and the rare aqueous coating agent is limited to polyvinyl alcohol (PVA) and amino clamping equipment.
White PVC Roll has similar properties but is in different form compared to White PVC Sheet. Due to its good printability, high plasticity and stable physical properties, white PVC roll is an ideal material for printing, packaging and vacuum forming. It also has light diffuser property, so it is frequently used in lampshade either. The gauge of white PVC roll produced by Ocan is from 0.18mm to 1.5mm and the maximum width is 1500mm.
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