Friends in the printing industry know that ink is an essential material in printing. At the same time, it plays a very important role in printing. So what are the components of ink in custom Paper bag printing?
1, the composition of printing ink
The printing ink is made by mixing pigments and additives in the fast orange material. Pigment is a solid colored substance, which is the main body of ink. The pigment used in the ink can be divided into two categories according to its source and chemical composition, Lang inorganic a material and organic pigments.
Inorganic materials are non-ferrous metal oxides or several insoluble metal salts such as salvation, Ci, and road, which are extremely powdered. It comes in two forms: natural and man-made. Natural inorganic material is also known as mineral pigment, it is mined from the rock, ground into powder more than washing. Although artificial inorganic pigments have bright colors and high light resistance, the ink a used to make is strong and not suitable for multi-color printing.
Organic a material also has two natural and artificial, natural organic pigments from animals or plants, artificial organic 0 material is obtained by organic synthesis method. This material is much superior to dry inorganic pigments in terms of variety consumption and brightness.
The quick orange material varies according to the purpose of use, and can be divided into oxidized polymerization dried orange material according to its different properties - refined for dry vegetable oil or synthetic resin. Such as offset printing, lithography, Ke Luo edition, and other printing are mostly used to manufacture ink. Additive includes color extractor, filler, desiccant and finishing agent, etc.
1) Color extraction
Added to ink as A whole agent of ink hue.
2) Filling material
The filling material has the dual effect of reducing the production cost and the quality of the ink. For example, aluminum hydroxide, sulfuric acid group, aluminum group white and other white substances, the right amount of added to the ink, can improve some properties of the ink, does not affect its hue, to reduce the role of production costs.
3) Desiccant
Oxidized drying ink, adding a very small amount of some metal salts, can greatly increase its drying speed, has the effect of drying. These metal salts are mixed with the drying agent. The main drying agent is drill I manganese l rosin acid soap, grease acid soap, zeate, borate... Let's wait.
4) Finishing agent
A small amount of additive for certain properties of high saving inks is called a finishing agent. After use, iE printing can be guaranteed to proceed smoothly. Most of the ink is only made with the combination of fast orange material, I material and filler, but some inevitably have to add a small amount of embellishment agent to reduce the printing performance of the whole ink, such as adding an appropriate amount of Vaseline when manufacturing blue ink.
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