Printed materials, often appear in our lives, in the work of either albums, special issues, catalogs, or business cards, have an inseparable relationship with the printing, how about learning the knowledge of printing!
Classification of printing: from the classification of printing methods, can be divided into offset printing, also known as lithography, which is printed on a flat surface, such as paper, stickers; intaglio and letterpress printing, also known as flexographic printing, generally used in plastic printing; there is also a kind of screen printing, which is what everyone says universal printing, it can be printed on any object, very flexible, but there is a drawback, that is, it does not apply to large-scale printing.
From the classification of printing machinery, which can be divided into two kinds, one is classified by the size of the paper, there are 8 open, 6 open, 4 open, 2 open (that is, folio), and all open.
The second is classified by the number of colors, there is a single-color machine, two-color machine, four-color machine, 4 +1 color, 4 + color, four-color is what we generally say C, M, Y, K, the four colors, 4 +1 means that the CMYK four colors and then add another spot color, such as gold, silver.
Naming of the printing machine: This is an example, such as 4103 machine, which, “4” that the number of paper open, for 4 open; “1” that the number of colors, for monochrome machine; “03 “ for the improved version, that is, refers to the process improved version.
Classification of paper: printing commonly used paper paper according to the use of different, can be divided into industrial paper, packaging paper, living paper, cultural paper and other categories, of which cultural paper that includes writing paper, art painting paper, printing paper. In the printing paper, according to the performance and characteristics of the paper is divided into newsprint, letterpress paper, offset printing coated paper, dictionary paper, maps and chart paper, intaglio printing paper, pictorial paper, weekly newspaper, whiteboard paper, written paper and so on. In addition, some high-grade printed matter is also widely used in art drawing class paper.
Copperplate paper
❶ Characteristics: smooth surface, high whiteness, uniform distribution of paper fibers, uniform thickness, small expansion and contraction, good elasticity and strong water resistance and tensile properties, ink absorption and acceptance of the state is very good. Copperplate paper has a single, double-sided two categories.
❷ Main uses: mainly used for printing albums, covers, postcards, beautiful product samples and colorful trademarks, etc.
❸ Grammage: common 80, 105, 128, 157, 200, 250, 300, 350 (g/m2)
Sub powder paper
❶ Characteristics: Unlike coated paper, the paper has a matte surface, uniform distribution of paper fibers, good thickness, high density, good elasticity and strong water resistance and tensile properties, ink absorption and reception status is slightly lower than coated paper, but the thickness of coated paper is slightly higher.
❷ Main uses: mainly used for printing albums, cards, postcards, exquisite product samples.
❸ Grammage: 80, 105, 128, 157, 200, 250, 300, 350 (g/m2) are common.
White cardboard
❶ Characteristics: It is a thicker and firmer white cardboard. Sub-yellow core and white core two kinds.
❷ Main uses: mainly used for printing business cards, postcards, invitations, certificates and packaging and decorative prints.
❸ Grammage: 250, 300, 350, 400 (g/m2).
White board paper
❶ Characteristics: gray core, thick and firm paper. There are two kinds of white on gray and white on white
❷Main use: mainly used for a variety of packaging and decorative printed matter.
Grammage: 250, 300, 350, 400 (g/m2).
Double Glue Paper
❶ Characteristics: Widely used, stable quality.
❷Main application: mainly used for all kinds of manuals, envelopes, letterheads and so on.
❸ Grammage: 60, 70, 80, 90, 100, 120 (g/m2).
Writing Paper
❶ Characteristics: Writing paper is for ink writing paper, paper required to write without blotting.
❷ Main uses: Mainly used for printing exercise books, diaries, forms and ledgers.
❸ Grammage: 45, 50, 60, 70, 80 (g/m2).
Kraft paper
❶ Characteristics: high tensile strength, single light, double light, stripes, grain-free, etc.. There are two kinds of kraft paper: white kraft paper and yellow kraft paper.
❷ Main uses: mainly used for wrapping paper, envelopes, paper bags and so on.
❸ Grammage: 60, 70, 80, 100, 120 (g/m2).
Art Paper
❶ Characteristics: a wide variety.
❷ Main applications: mainly used in fine book covers, brochures, pamphlets, invitations, greeting cards, high-grade office paper, business cards, high-grade packaging paper and so on.
Self-adhesive
❶ Characteristics: Due to the back of the adhesive backing, the paper is thinner. Sub-mirror, copper plate, writing self-adhesive, etc., and there are differences in adhesion