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CompanyShijiazhuang Dazhang Paper Co., Ltd. is an innovative enterprise integrating the production, processing, sales and service of various kinds of paperboard, such as gray paperboard, white paperboard, black card paperboard, wate
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ProductsThe company has owned "Golden Rooster", "Golden Light", "Little Grizzly" and other brands, and the products are widely used in hardcover publishing, jigsaw puzzles, thin books, photo albums, bags, gift packaging and other fie
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NewsShijiazhuang Dazhang Paper Co., Ltd. is an innovative enterprise integrating the production, processing, sales and service of various kinds of paperboard, such as gray paperboard, white paperboard, black card paperboard, wate
Choose white board correctly
Published on:
2021-09-15
For ordinary small and medium-sized packaging, such as beer, beverage, fruit and other food cartons, more and more products use white board paper to stop black printing. Then how to choose whiteboard? Let's understand it with Xiao Bian: Whiteboard is a kind of paperboard with white and lubricated front and mostly grey back. This kind of paperboard is made of bleached chemical pulp as the top pulp and mixed with various miscellaneous pulp as the inside pulp. After printing, it is made into a paper box for packaging cosmetics, drugs, food, cigarettes, etc. It can also be used to print and brush educational pictures. The quantity is 200250300400g/m2, and it can be divided into single side, double side, special grade and ordinary.
For ordinary small and medium-sized packaging, such as beer, beverage, fruit and other food cartons, more and more products use white board paper to stop black printing. Then how to choose whiteboard? Let's understand it with Xiao Bian:
Whiteboard is a kind of paperboard with white and lubricated front and mostly grey back. This kind of paperboard is made of bleached chemical pulp as the top pulp and mixed with various miscellaneous pulp as the inside pulp. After printing, it is made into a paper box for packaging cosmetics, drugs, food, cigarettes, etc. It can also be used to print and brush educational pictures. The quantity is 200250300400g/m2, and it can be divided into single side, double side, special grade and ordinary.
How to choose:
The quality of whiteboard is better than that of white board, and the back is more delicate with less impurities, so it is not easy to be soaked by water. You can pour some water on the back to check. On the positive side, the coating layer shall be relatively average, and the bottom shall not be exposed, that is, the color of the bottom plate can be seen. The coating shall not be too thick, as it is easy to lose powder. You can fold it to see the powder falling off of the coating layer. There are no pits on the front and no black blocks on the paper.
In addition to the average thickness of coated paper, from the front, the glossiness is the same, and it will not show the scene of some bright central light and some sub central light. Besides, good coated paper feels lighter, and the softness is also very good. When you take a piece and tear it, there are many fibers on the torn side. Paper jam mainly depends on the average thickness.
In terms of quality, what is the difference between whiteboard boxes and printing?
The quality requirements of white board include box making and printing The main requirement for box making is that the paperboard should have proper stiffness, in particular, it should have a certain folding strength, so that the made carton is hard, and it is not easy to break and break at the crimp line of the rolled carton. The uniform tension should not be less than 200k g/cm l. The uniform folding resistance should not be less than 20 times. In terms of printing, the main requirement is to whiten and lubricate the paper surface. The whiteness of board paper is generally above 70. The paperboard should be flat, with different thickness, tight texture, small flexibility, and generally conform to the overprint of 5 and 7 colors
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