1. First of all, we need to know the opening number of specifications. Normal flat sheet specifications are divided into large and positive. Large full sheet specifications are: 119cm * 89cm (47 inches * 35 inches). Two sheets are called opposite, four sheets are called four sheets, eight sheets are called eight sheets (A3), and 16 sheets are called 16 sheets (A4). Full sheet size: 108CM * 78cm (43 inches * 31 inches), the same cut two for the positive degree of open,... And so on. Generally, 1cm machine should be left to bite the paper and 0.5cm cross line register on both sides. Of course, our company is mainly 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 paper, more than 200g thick called card, such as copper card, most used for picture books and advertising color sheet; White board, white cardboard, most of them are used for cartons and boxes; There are carbon free copy paper, self-adhesive paper, sulfuric acid paper, special paper, as well as cardboard, core paper, kraft linerboard, etc. Generally speaking, 157G coated paper means that the thickness of this coated paper is 157G per square meter. The larger the number of grams, the thicker the paper. In printing, it is customary to call 500 sheets of full sheet paper as 1 ream paper. The price of paper is based on tons. The reams per ton of paper of various gram thickness are different. There is a table for reference.

Printing quality generally depends on whether there is registration, whether the printing dot is solid and clear, whether the layout paper is dirty and scratched, whether the trimming line is printed, whether the text is broken, whether the color is uniform, and if there is a sample sheet, proofing should be checked. Printing processing fee is usually calculated by color order, that is, each order of paper printing a color is called 1 color order.

3. Post press: post press processing processes include compound light film, compound dumb film, bronzing, oiling, UV, folding, horse binding, sewing, die-cutting, fine tile e corrugating, etc. There are also packaging, delivery, collection and so on. Generally, when we sign a contract, we have to pay in advance, usually 30% - 50% in advance, because the content of the printed matter is customized, which is not used by others.