80gsm a4 paper
Product Details
different. A4 paper filler in order to increase flexibility, to reduce the transparency and stretchable paper, a4 paper surface smoothness and uniformity of the materials used, such as talc general printing paper, fine paper kaolin and barium sulfate and the like. Use of fillers should moderate, generally accounting for about 20% a4 paper, and excessive resistance will reduce the line sheets and flexibility, and will hinder the absorption of the ink, causing dusting ills printing. Compound to the small pore a4 paper is padded, a4 paper to improve water resistance, but also can improve glossiness a4 paper, the strength of the paper and acts to prevent the fluffing action. Commonly used rubber rosin, alum, and starch. A4 paper pigment in order to enhance color purity, most inorganic pigments or organic dyes. 2, a4 paper a4 paper specifications according to different printing applications can be divided into flat paper and roll, flat paper for general printing presses, web generally used for high-speed rotary presses. size a4 paper generally should follow the standards formulated by the state of production. Printing, writing and drawing classes paper Paper size: web width points 1575mm, 1092mm, 880mm, 787mm four kinds; flat sheet of paper size divided by size: 880mm x 1230mm, 850mm x 1168mm, 880mm x 1092mm, 787mm x 1092mm, 787mm x 960mm, 690mm x 960mm of six. Folio books and magazines and a4 paper size format standard, the state is using 880mm x 1230mm, 900mm x 1280mm, 1000mm x 1400mm single a4 paper size of the print is not cropped. Because of equipment, production, supply and other reasons, the original 787mm x 1092mm, 850mm x 1168mm size a4 paper, the current can continue to use, but should be noted that the old standard format of this size is to be phased out, after a4 paper size the new national standard will be a transition. Company Website: 2010gg /
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