Screen printing consists of five elements: screen printing plate, scraper, ink, printing table and printing material. The basic principle of screen printing is to use the basic principle of penetrating ink in screen printing plate and non-screen printing. When printing, ink is poured into one end of screen printing plate, and scraper is used to exert certain pressure on the ink part of screen printing plate, while moving towards the other end of screen printing plate. The ink is scraped from the mesh of the graphic part to the substrate during movement. Because of the stickiness of ink, the impression is fixed in a certain range. During the printing process, the scraper always contacts the screen printing plate and the substrate linearly, and the contact line moves with the scraper. Because there is a certain gap between the screen printing plate and the substrate, the screen printing plate produces pairs through its own tension. The reaction force of scraper is called resilience force. Because of the resilience, the screen printing plate and the substrate are only in mobile line contact, while the other parts of the screen printing plate are out of state with the substrate. The breaking motion between ink and screen ensures the printing dimension accuracy and avoids dirty printing materials. When the scraper scrapes across the entire page, it lifts up, and the screen printing plate also lifts up, and the ink is scraped back to its original position. So far it’s a printing trip.
ia digunakan untuk kakitangan perubatan klinikal memakai dalam proses operasi invasif ia digunakan untuk kakitangan perubatan klinikal memakai dalam proses operasi invasif
The brand history of TUBORG
Ciri-ciri jenama TUBORG, which started in Copenhagen in 1873, is the first light beer in Denmark. With a fresh and smooth taste and mild and moderate bitterness, TUBORG is well-known in more than 70 countries and regions around the world. It is also the only [...]
Red Wine Brewing Process
A. Stem removal: To avoid excessive bitterness in wine, remove the stem from the fruit. B. Crushing: Crushing the peel gently, called crushing. C. Fermentation: Yeast is added to the crushed grapes (together with the peel and seeds). Because the color of red wine comes from [...]
Bersama diplo
Bersama diplo, Bersama diplo. Bersama diplo, Bersama diplo, [...]
How to choose glass?
1. Whiteness: no obvious color is required for the exposed glass. 2. Bubbles: a certain number of bubbles of a certain width and length are allowed, but those that can be pierced by a steel needle are not allowed. 3. Transparent pimple: refers to the glass [...]
The characteristics of EVA and PEVA
1. Biodegradable: When discarded or burned, it will not cause harm to the environment. 2. The price is similar to that of PVC: EVA is more expensive than toxic PVC, but less expensive than PVC without phthalate. 3. Light weight: the density of EVA ranges from [...]
Characteristics of ceramics
When it comes to ceramic materials, it’s hard to avoid separating ceramics from porcelain. We often refer to ceramics as pottery and porcelain A combination of two types of utensils. In the field of creation, pottery and porcelain are indispensable parts of ceramic art, but [...]
Classification of pad printing ink
Ink classification The drying of one component ink (also called solvent volatile ink) depends on solvent volatilization. This ink does not have to be added with catalyst. There are two kinds of one component inks: glossy and non glossy. They are mainly used for printing [...]
Classification of tablecloths
Pertama, it is classified according to the production process. Plastics: PVC table cloth, EVA table cloth, PEVA table cloth, ironing table cloth, cotton substrate PVC table cloth, PP table cloth and other polyethylene table cloth, casting film table cloth Textile category: polyester-cotton slub printing table cloth, [...]
Legap Selain kemerosotan makanan(2)
Legap Selain kemerosotan makanan 1978, Legap Selain kemerosotan makanan, Legap Selain kemerosotan makanan, Legap Selain kemerosotan makanan, Legap Selain kemerosotan makanan. Legap Selain kemerosotan makanan [...]
Ia boleh menyerap terlalu banyak asfalt bebas(2)
Process features: (1) no solvent is added in the system, propylene monomer is polymerized in liquid phase in the kettle reactor, and ethylene propylene is polymerized in gas phase in the fluidized bed reactor; (2) simple process, less equipment, less investment, low power consumption [...]