The post-printing processing technology of the envelope has certain characteristics. According to its product attributes, it is divided into two parts: necessary processing technology and non-essential processing technology.
1. Non-essential processing technology
This face-to-face process is mainly to increase the aesthetic appearance of the product. Common processing techniques are:
1. Laminating
It is a processing technology that coats plastic film with adhesive and bonds the printed matter with heat and pressure. After the printed matter is covered with film, due to the addition of a layer of plastic film on the surface, it is smoother, and the gloss and color firmness are also better. The graphics are bright in color and full of three-dimensional sense. At the same time, it also has waterproof, anti-fouling, and wear-resistant. Folding and corrosion resistance.
2. Glazing
A common process in high-end printed products is to coat (or spray, or print) a colorless and transparent coating on the surface of the printed product, thereby forming a thin and uniform transparent bright layer on the surface of the printed product. It not only protects the printed matter, but also changes the foreign trade texture and visual effects of the printed matter.
3. Drumming
The process is called embossing and embossing, that is, a piece of intaglio and a letterpress with a close fit are sandwiched between the printed matter, and under a certain pressure, the surface of the printed matter is formed with a graphic or pattern similar to the relief, so that the printed matter has a significant relief.
2. Necessary processing technology
Because there is a remarkable feature in the structure of the envelope, which is to have a paper pocket for loading documents (called "tongue" in the printing industry), the production of this part must go through "folding" and "pasting". Process.
1. Folding
Through mechanical action, the indentation of changing the material shape is reserved on the paper or other cutting paper to facilitate folding.
2. Paste
That is, the printed matter is bonded and formed. According to the choice of adhesive, adhesive strength, and use environment restrictions, the paste is divided into general and high-grade according to quality, two cases.
It should be noted that in general, these two processes need to be priced separately, and cannot be ignored when calculating the cost of printed matter.
Home Elliptical,Best Elliptical,Space Saving Elliptical,Elliptical Exercise Equipment
Zhejiang Kingdom Sports Co.,Ltd. , https://www.zjkingdomsports.com