Basic knowledge of printing:
We are a big printing company in Shenzhen China . We offer all book publications, color advertising pictures, hardcover album, packaging box, calendars, all kinds of PVC, product brochures, notes, Children's book, stickers, all kinds of special paper color printing products, game cardand so on.
For more information please visit
http://www.joyful-printing.com. ENG only
http://www.joyful-printing.net
http://www.joyful-printing.org
email: 860681365@qq.com
1. The following generally refers to color printing (offset printing). The first step is to know the specifications. The normal sheet size is divided into large and positive degrees, and the generous full sheet size is 119cm*89cm (47 inches * 35 inches). ), cut into two called open, cut four open four, open 8 open 8 (A3), cut into 16 open (A4). The positive full-sheet size is: 108cm* 78cm (43 inches * 31 inches), also cut two are positive, ... and so on. It is generally necessary to leave a 1cm machine to bite the paper's mouth and two 0.5cm crosshair registration positions. Of course, our company is mainly based on web, so it can also be converted into square meters.
2, paper and printing: paper is generally divided into offset paper, such as ordinary copy paper, writing paper; coated paper, matte powder, more than 200g thickness called the card, such as copper cards, most of the color used for pictures and advertising Single; white board paper, white cardboard, most of them used in carton packaging box; there is no carbon copy paper, adhesive paper, sulfuric acid paper, specialty paper, paper cartons of facial paper, core paper, cattle cardboard and so on. The thickness of the paper is generally calculated in grams of g. In general, 157 g of coated paper means that the thickness of the coated paper is 157 grams per square meter, and the larger the number of grams, the thicker the paper. It is customary to print 500 full sheets of paper called 1 ream paper. The paper is priced in tons, and the number of grams per ton of paper of various gram-thickness is not the same. There are tables for reference. The printing quality generally depends on whether or not the register is correct, whether the printing dots are solid and clear, whether the layout paper has been scratched or scratched, whether the trim line has been printed out, whether the characters have broken pens, whether the colors are even, and if the proofs are still necessary. Check proofing. Printing and processing fees are usually calculated by color orders, that is, each order is printed in one color and one color is called.
3, after printing: India after the printing process of film, dumb film, bronzing, oil, over UV, folding, saddle stitch binding, lock line binding, indentation die cutting, fine tile E tile and so on.
4, there are packaging, delivery, collection and so on. Generally, when we sign a contract with the service, we must advance payment. Normally, we must pay 50% in advance. Because the printed matter is specific to this customer only, if he does not, he is not useful.
Printing classification:
1. Offset printing: commonly known as color printing, the film is printed on the pre-coated photosensitive printing plate (PS plate) by the printing plate, and then printed on the paper by an offset printing machine. The number of general network lines is 175 lines/inch2, 175L/inch; offset printing machine There are monochrome machines, two-color machines, four-color machines, five-color machines, etc.; specifications are Zhang Quan Zhang Quan, full boot, boot, four boot, eight boot and so on.
2. Gravure printing: Generally plastic printing, or web printing, printing a large number of bags or cigarette labels, magazines, etc.
3, screen printing: general printing thicker patterns, printing materials are cloth, plastic, paper, cardboard boxes, etc., the printing version is based on the network frame line, the average is generally 80 ~ 100 lines, we contact for the paper , Such as printing UV oil, sanding effect, local UV coating and so on.
4, flexo, watermark is to use film affixed to the resin plate, rubber plate photosensitive etching or engraving printing patterns for printing. (In addition, hot metal embossing, first film out film to do corrosion metal plate.)
5. Offset network lines and outlets: Generally 175 lines per inch are mostly used for printing on coated paper advertisements, etc. Whiteboard paper or rough surfaced paper should adopt 150 lines; some high-grade pictures use 200 lines. The 200-line press is very flat and there is no problem with the film. The key is printing.