① Prepress refers to the work before printing, which generally refers to photography, design or production, typesetting, film production, printing, etc.

②印中，指印刷中期的工作，通过印刷出成品的过程。③印后，指印刷后期的工作，一般指印刷品的后加工包括覆膜、裱纸、裁切或模切、贴窗贴窗、糊盒、品检等。

② During printing, it refers to the work in the middle of printing and the process of printing finished products. ③ Post printing refers to the work in the later stage of printing, which generally refers to the post-processing of printed matter, including film covering, paper mounting, cutting or die-cutting, window pasting, box pasting, quality inspection, etc.

①纸张，纸张分类很多，一般分为涂布纸、非涂布纸。涂布纸一般指铜版纸(光铜)和哑粉纸(无光铜，多用于彩色印刷;非涂布纸一般指胶版纸、新闻纸，多用于信纸、信封和报纸的印刷。

① There are many kinds of paper, which are generally divided into coated paper and uncoated paper. Coated paper generally refers to coated paper (glossy copper) and matte paper (matte copper), which are mostly used for color printing; uncoated paper generally refers to offset paper and newsprint, which are mostly used for the printing of stationery, envelopes and newspapers.

②颜色，一般印刷品是由黄、品红、青、黑四色压印，另外还有印刷品档次，提升印刷品档次的方法，烫金、起凸、过亚胶或光胶、使用专色、局部UV等。

② Color: generally, the printed matter is embossed by four colors: yellow, magenta, cyan and black. In addition, there are the grade of printed matter and the methods to improve the grade of printed matter, such as bronzing, bulging, passing sub glue or gloss glue, using spot color, local UV, etc.

①以产品分类办公类，指信纸、信封、办公表格等与办公有关的印刷品。宣传类，指海报、宣传单页、产品目录等一系列与企业宣传有关的印刷品。生产类，指包装盒、不干胶标签等大批量的与生产产品直接有关的印刷品。

① Classified by products, office refers to stationery, envelopes, office forms and other office related printed materials. Publicity refers to a series of printed materials related to enterprise publicity, such as posters, leaflets, product catalogs, etc. Production refers to large quantities of printed matter directly related to the production of products, such as packaging boxes and self-adhesive labels.

②以印刷机分类胶版印刷，指用平版刷(PS版)，多用于四色纸张印刷。凹版印刷，指用凹版(一般指铜版等)，多用于塑料印刷。柔性版印刷，指用柔性材料版(一般指可树脂版等)，多用于不干胶印刷。丝网印刷，指丝印，可在各种材料上印刷。

② Offset printing classified by printing press refers to the use of lithographic brush (PS version), which is mostly used for four-color paper printing. Gravure printing refers to the use of gravure (generally copper plate, etc.), which is mostly used for plastic printing. Flexographic printing refers to the use of flexible material plate (generally refers to resin plate, etc.), which is mostly used for self-adhesive printing. Screen printing refers to screen printing, which can be printed on various materials.

③以材料分类纸张印刷，常用的印刷。塑料印刷，多用于包装的印刷。特种材料，印刷指玻璃、金属、木材等印刷。P数，指16开纸张一面。实地，指满版印刷，填色克数，衡量纸张厚的重指标。打样，制作印刷样稿的过程。出片，用电子文件输出菲林片的过程。令，衡量纸张数量的单位(1令等于500张)。色样，所要印刷颜色的标准。叼口，为裁切印刷品而保留的位置。指四色(黄、品红、青、黑)之外的特别色：

③ Paper printing by material classification, commonly used printing. Plastic printing, mostly used for packaging printing. Printing of special materials refers to the printing of glass, metal, wood, etc. P number refers to one side of 16 sheets of paper. On the spot, refers to the weight index of full-scale printing, filling grams and measuring the thickness of paper. Proofing, the process of making printing samples. The process of outputting film with electronic files. A measure of the amount of paper (one order equals 500 sheets). Color sample, the standard of the color to be printed. A position reserved for cutting printed matter. It refers to special colors other than four colors (yellow, magenta, cyan and black):

①除C、M、Y、K、C+M、C+Y、M+Y七种颜色各项满值时没有网点，其他颜色中没有网点就专色。

① Except for the seven colors C, m, y, K, C + m, C + y and M + y, there is no dot at the full value of each item, and the spot color is available when there is no dot in other colors.

②当你看到的网点颜色中只有一种颜色，而且他不是C、M、Y、K本身的颜色，那么它是专色带的网点。

② When you see only one color in the dot color, and it is not the color of C, m, y and K itself, it is the dot of spot color band.

①颜色少时一般用专色，四色以上一般用四原色以节省成本。

① Spot color is generally used when there are few colors, and four primary colors are generally used for more than four colors to save cost.

②专色的好处在于不用套准，防止色差和防止反印。

② The advantage of spot color is that there is no registration to prevent color difference and reverse printing.

③专色可使印刷品显得更为精美。

③ Spot color can make printed matter look more exquisite.

④宣传类的产品通常用四原色有时会加上一个专色，产品用色会有4+1或4+2的组合。

④ Promotional products usually use four primary colors, sometimes with a spot color, and the product color will have a combination of 4 + 1 or 4 + 2.

⑤有些标志、大的色块和底色有时会用专色。⑥贴纸、包装纸通常会用专色。

⑤ Some signs, large color blocks and background colors sometimes use spot colors. ⑥ Stickers and wrapping papers usually use spot color.

⑦专色的印刷效果通常是平的，四原色的印刷效果常是凹凸不平的，色彩变化比较丰富。

⑦ The printing effect of spot color is usually flat, and the printing effect of four primary colors is often uneven, with rich color changes.

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