In the backpack customization industry, screen printing technology is one of the main processes for logo production. It has the advantages of large batches, cheap prices, bright colors, long shelf life, and fast delivery. Therefore, it is widely used in the backpack customization industry.

Screen printing is an abbreviation of screen printing. Screen printing refers to the use of the screen as the plate base, and through the photosensitive plate-making method, a screen printing plate with graphics and text is made. Screen printing consists of five elements: screen printing plate, squeegee, ink, printing table, and substrate. Printing is carried out by using the basic principle that the mesh of the screen printing plate can pass through the ink, and the mesh of the non-graphic part cannot pass through the ink. When printing, pour ink at one end of the screen printing plate, apply a certain pressure to the ink part on the screen printing plate with a scraper, and at the same time move towards the other end of the screen printing plate at a constant speed, the ink is removed from the graphics and text by the scraper during the movement. Part of the mesh is extruded onto the substrate.

Advantages of screen printing:

1. Not limited by the size and shape of the substrate

General printing can only be done on a flat surface, while screen printing can not only print on a flat surface but also print on a special shape such as a spherical surface.

2. The layout is soft and the printing pressure is small.

The screen printing layout is soft and has a certain elasticity, not only suitable for printing on soft items such as paper and cloth, but also for printing on hard items, such as glass, ceramics, etc.

3. The ink layer has strong coverage.

It can be printed in pure white on all-black paper, with a strong three-dimensional effect.

4. Suitable for various types of ink

5. Strong anti-rotation performance

The gloss of the printed matter can be kept unchanged. (air temperature and sunlight have no effect). This makes printing some self-adhesives without the need for additional lamination and other processes.

6. Flexible and diverse printing methods

In addition to direct printing, screen printing can also be printed by indirect printing methods as needed, that is, screen printing on gelatin or silicone plate first, and then transferring to the substrate. Therefore, it can be said that screen printing has strong adaptability and a wide range of applications.

7. The plate making is convenient, the price is cheap, and the technology is easy to master.

8. Strong adhesion

9. It can be screen printed by hand or by machine.

10. It is suitable for long-term display, and outdoor advertising is expressive.