A stationery item used to protect documents.Inside pages are typically 20, 30, 40, 50 pages, with single pockets and double pockets.The size of the brochure is generally A4, but also B5.Cover is generally PP, plus a variety of printing patterns.There is a built-in information card in the middle, which can be handwritten notes.General use in schools and offices
Aluminum foil and PET composite paper have been widely used in the outer packaging of products because of its rich metallic luster and high luminous performance, so as to improve the grade and appearance of the products. However, aluminum foil and PET are not easily decomposed, and they become a type of pollution that pollutes the environment after they are discarded. Therefore, as people’s environmental awareness continues to increase, environmental-friendly vacuum aluminum-plated paper is gradually replacing the original aluminum foil and PET composite paper on the packaging materials of products, and is widely used in packaging of high-grade food, cosmetics, tobacco, and alcohol. on. Developed countries such as Europe and the United States have gradually given up and forbid the use of traditional aluminum foil and PET composite paperboard for general product packaging and cigarette packs since the 1980s. Since the 1990s, domestic aluminum foil and PET composite paper have also gradually been phased out, and replaced by environmentally friendly vacuum aluminum paper. However, due to the high quality requirements of the bottom paper in the aluminized material, imported products have been used. The base paper for the transfer film is an essential raw material for the production of environment-friendly vacuum aluminum-plated paperboard using the transfer film composite technology. Because it not only meets the requirements of environmental protection but also has significant social and economic benefits, it has great promotion and application value.
The base paper for transfer film is to meet the quality requirements of the final product with good smoothness, high smoothness, bright color and beautiful appearance. The key technology is unique raw materials, coating formulations and supporting equipment. The key technical indicators are the surface roughness, smoothness, gloss, stiffness, and folding resistance of paper sheets. By adopting the exclusive domestically-available, world-class, large-diameter (∮5.5m) gloss drying cylinder, the best equipment combination in the production process is formulated, and the unique coating formulation technology is developed and selected so that the surface roughness of the finished paper is low. Smoothness, smooth texture, fine texture, good gloss, good stiffness, high degree of folding, thickness, moisture uniformity.
The transfer film base paper has undergone repeated trials, pilot tests, production trials, and continuous adjustments and improvements. The trial-produced products have been tested by the National Light Industry Paper Quality Supervision and Testing Station in Shanghai. The major technical and performance indicators have reached and exceeded. Trial technical requirements. The vacuum coated aluminum material made by the customer using the transfer method of the finished paper has a small rebound and good fastness, and has strong printability and good package running performance. It does not explode ink and can replace imported products. After scientific and technological investigations and consultations on the level of scientific and technological achievements, the development of base paper for transfer film is a domestic initiative, filling a gap in the country. Its main technical indicators have reached the advanced level of similar products.
The new type of green packaging material is the future direction of China's packaging industry. Vacuum aluminum plating is the best environmental alternative to replacing aluminum foil composites. The successful development of the base paper for transfer film has made positive contributions to protecting and improving the living environment of human beings and benefiting future generations. 
Display Books,Plastic Display Book,Solid Cover Display Book,Display Clear Book
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