Specifications for offset paper. The specifications of offset paper are the same as those of the two paper. Other specifications can be visited GB GB147 "printing, writing and drawing for base paper size", size error, slope shall not exceed + 3mm. Offset paper has a variety of quantitative, commonly used for quantitative 60, 70, 80, 90, 120, 150, 180, 200, 250g/m2. The printed books and periodicals are all under 90g/m2, and the cover is between 70 and 200g/m2. Offset paper has the characteristics of crisp, smooth, easy to order processing.
It should be an offset paper!!The old saying "paper", mainly for offset (offset) using a printing press or other printing machine higher-level color printing, suitable for printing monochrome or multicolor covers of books, text and pictorial, inserts, maps, posters, color trademarks and a variety of packaging products.The offset paper is divided into special number, No. 1 and No. 2 and No. 3 according to the proportion of paper size, and has higher strength and printability. There are single and double points, as well as super pressure and ordinary light pressure two grades. Offset printing is more advanced books and periodicals, printing paper, contrast, flexibility and surface strength of higher requirements, pH should be close to neutral or weak alkaline, so as not to affect the printing of paper,Offset paper flexibility of small, uniform ink absorption, good smoothness, compact opaque, good whiteness, strong water resistance, should choose good letterpress printing ink conjunctival type offset ink and quality. The viscosity of the ink is not too high, otherwise it will appear off powder, szlama. To prevent the back of the stick dirty, usually against dirty, dusting or paper.
Properties of offset paper raw material and offset paper. Offset paper is usually made of bleached needles, wood pulp, chemical pulp and a proper amount of bamboo pulp. When the offset paper is processed, the filling and sizing are heavier. Some high-grade offset paper also needs surface sizing and pressing. Offset printing in the printing, because of the use of ink balance principle, so the paper needs to have good water resistance, dimensional stability and strength. Offset paper is mostly used for color printing. In order to make the ink to restore the original tone, it requires a certain degree of whiteness and smoothness. Offset paper generally used for printing pictures, color illustrations, trademarks, cover, lining, high-grade books and Book etc.. In recent years, with the improvement of people's culture and living standards, books and materials have also been developed to a higher level. More and more books and periodicals have been printed with offset paper. Because the offset paper quality white, crisp flat 1 delicate advantages, having books and periodicals made clear text books, the flat is not easy deformation, compared with the bare version, newsprint grade books, exceptionally different, won the readers and users welcome. The quantity of books and periodicals that will be bound by offset paper will be greatly increased in the future to meet the needs of the market.
For offset paper, formerly known as the "paper", mainly for offset (offset) using a printing press or other printing machine higher-level color printing, suitable for printing monochrome or multicolor covers of books, text and pictorial, inserts, maps, posters, color and packaging product trademarks.
