the types of envelope printing technology
The post-press processing of envelopes has a certain degree of particularity. According to its product attributes, it can be divided into two indispensable processing techniques and non-processed ones.
Because the envelope has a unique surface structure, it is equipped with a paper pocket for loading documents, and these processes must be passed through two processes: (folding) and (paste).
First, the folding effect of mechanical effects on the cover of the book printing paper or other cut-sheet paper to change the shape of the nai marks, in order to facilitate folding.
Second, the paste - will be printed on the adhesive forming, follow the selection of adhesives, adhesive strength, and the use of the background limit will paste the quality of ordinary and high-grade, two kinds of things. The need to pay attention to is that, in general, these two kinds of technology are required to calculate the price alone, and cannot be neglected when calculating the cost of printed matter.
Non-indispensable processing technology
When this process is mainly to increase the appearance of the product, the common processing techniques are: 1. The cover of the album is covered with film, and some people call it glue.. The film is the adhesive coating of the molecular compound plastic, and the printed matter. By heating, the pressure is increased to adhere to the processing technology. After covering the printed matter, due to the appearance of a layer of molecular compound plastic film, more flat and smooth, and the firmness of the gloss and color is also better, the graphic and text color is bright and rich three-dimensional, and also has a waterproof, Anti-fouling, wear-resistant folding and other functions.
2. Book cover glazing: It is a process seen in high-grade prints. The printed book cover is coated or sprayed with a colorless and transparent paint film. Therefore, a thin and uniform clear and transparent layer is formed on the outer surface of the printed matter. It is unfairly taken care of the printed matter, and the texture and visual quality of the print can be changed. Object feeling effect.
3, from the drum, from the drum also known as spurt, that is, after an emergency with a suitable relief version, with the printed matter, under certain pressure, so that the appearance of the printed matter and the relief version of the formation of similar graphics or stripes, so that the middle of the printing mouth A significant sense of relief.
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