What is copper paper? Copper paper is this kind of high-grade printing paper, which has ultra-fine brush particles. The linearity of the paper is higher and the smoothness is better. For this feature, usually the cover and illustration pictures of high-level journals, colorful pictures, high-end goods, word patterns, packaging, trademark logos will be selected using copper paper.
What is offset paper? The first offset paper can be classified into A, B, and C grades. At least the A and B grade adhesive papers are made up of 100% bleached softwood pulp or matched with bamboo pulp, cotton pulp, and dragon. Some green plant pulp such as straw pulp is made. In the process of processing C grade offset, 60% bleach wood pulp or a part of cotton pulp bamboo pulp is used. Offset paper has low elasticity, strong water resistance and symmetry of digestion and absorption of printing ink. Therefore, the offset paper is usually suitable for printing some solid color or multi-color journals, pictorials, posters and colorful trademark logos and packaging supplies.
So what is the key difference between offset paper and copper paper?
One: the price. The cost of offset paper is less than that of copper paper, so it is lower than copper paper at the price level.
Two: packaging and printing. Offset paper can only be applied in one layer, the key is applied to single-sided offset printing, and the high-end packaging printing of copper paper is often sizing on both sides.
Three: processing technology. At the processing level, the processing technology of copperboard paper is higher than that of offset paper, which is higher than offset paper in many aspects of paper type fineness, toughness and linearity.
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