The so-called paper grain texture paper refers to fibrous tissue, which is arranged in the direction of fibrous tissue. Where roll during the papermaking and paper machine movement direction parallel box printing, also known as the vertical direction, and the direction perpendicular to the paper machine called transverse direction. Width direction generally transverse fiber web box printing, web circumferential longitudinal, paper longitudinal tensile high tension to meet the requirements of high-speed movement of the press, is more difficult to tear transverse direction the degree of tension and resistance to rub down, while the vertical direction is relatively strong, and tear on the pit box box printing weak, easily torn, because the lines are vertical. Pay special attention to the paper during printing lines, if you ignore this aspect, you may print out the effect is very different, it is particularly important especially for printing and packaging boxes and handbags, many printing Future cost savings, regardless of the trend lines of paper, paper in the open when the random start, the results produced some more tough box, the box may be some relatively weak, some boxes are always prone to breakage, and some boxes with there will not be a problem for a long time. Bag printing white box box printing, a large part of the bag is a small three open, open horizontal lines on that one-third of paper and paper texture with vertical opening trails far. If the paper itself is not a good paper, that difference greater. High-end print must not be such a product. Some printing salesman for a few years did not understand this, obviously is the same paper, why do it the effect of some strong and some weak it; some edge is always broken, and some but how the whole are intact; some Mauri rough edges, and some smooth edges clean. Ink cleaning tips driers species are fatty acid, naphthalene acid, cobalt octane acid, manganese, aluminum and the like. Offset printing, offset printing ink can not be separated, it ultimately ink cleaner. Thus printer manufacturers ink cleaner front, which will be given specific instructions on press engineering manual. Moreover, some of the ink also contains glial calcium carbonate filler. Currently black pigment used in printing inks, mostly inorganic, and the color ink more for organic pigments. Fountain solution consists of water, inorganic compounds and acacia composition, hydrophilic very good. Offset inks commonly used binder with vegetable oil and solvent oil type. These salts can be oxidized by oxygen in the air, which increased after the metal ion valence oxidation strengthen, promote drying oil oxidation polymerization reaction, such additives oxidative polymerization of drying oil crosslinked film-forming reactions catalyzed effect. Ink cleaning agent is mainly divided into two categories: one is gasoline, kerosene, and the other is printing special cleaning agent (commonly known specialty is "ink cleaner"). Offset printing ink according to their molecular structure belongs to an organic substance that can be dissolved organic solvent, and the pigment ink are neither soluble in water, soluble in organic solvents not only have a certain affinity for water. Press the main mechanism of the ink drying ink into oxidative polymerization drying, penetration leaking drying, evaporation drying type and photo-curable four categories. Whatever the type of printing ink common requirement for them is: transfer printing process to the surface of the paper before, it is necessary to keep alive the idea of ??chaos energy; and after the transfer to the paper surface, it is necessary to lose activity quickly dried and cured ; inks have good adhesion to substrates; inks should have good transitive; graphic printing ink on paper composition necessary to maintain accurate and lasting glory. According to statistics, the total output value of the world's printing, offset ranked first, the "Queen of the analog printing" reputation. Huang Jiang box printing, beyond printing, cosmetics box printing by the Dongguan City, often beyond packaging products factory provided. Huang Jiang box printing, beyond printing, cosmetics box printing Dongguan City, often beyond packaging products plant (www.dgcyp.com) this year introduced a new upgrade, the above picture is for reference only, please call the contact picture on this page or telephone obtain the latest information, contact: Mr. Jiang.