People who come into contact with modern printing often hear about some terms related to the film, such as the film down, the film up or right, and the anti-word.
Today we specialize in demonstrating the difference between offset printing and screen printing film.
First, we introduce the basic principles of these two kinds of printing.
First, offset printing
According to the diagram, the offset printing plate should be a positive character, and the reversed character printed on the tape should be printed. When it is finally transferred to paper or other media, it is a positive image.
As we all know, the graphic version of the printing plate is obtained by the printing process of the film. The film has a certain thickness. In order to make full contact with the pattern and the PS plate as much as possible, the filming and printing of the film should be below, and at the same time The effect observed above should be a positive image, only in this way can ensure that the film and the PS version of the zero-distance contact. (Because the film has a thickness, if the packaging film 'target=_blank> is a transparent film between the film and the PS, the light will be refracted during the printing, and the pattern will be lost and deformed due to the exposure of the printing plate, which will affect the effect.)
Therefore, when offset film is used to read the content, the film should be on the opposite side. Therefore, the film is usually called downward or reversed. That is, if the film is on top, what we see should be reversed. Mirroring effect.
Second, silk screen
Because the screen printing is “leakage printingâ€, although the graphic image presented on the top of the screen printing plate is the main text, the printing plate of the silk printing plate is the reverse word on the side of the contact surface of the printing material.
The graphic version of the screen printing plate is also obtained through the printing of the film, but because of the screen printing process, there is no similar intermediate transfer media (such as offset printing) for offset printing, but the direct contact between the printing plate and the substrate. Therefore, the contents on the printing plate should be anti-words, but in order to ensure that the film surface of the film is fully in contact with the screen mesh yarn, only when the film of the silk printing film is a positive character. Therefore, the screen printing film should be upward, that is, if the film is on the top, we should see the contents of the word is usually called the film upward.
Third, printing
The principle of pad printing is to use the method of photographic plate making the desired printing pattern first, and then make the steel plate into a gravure and transferring it onto the object to be printed via a special adhesive printing head, and can be used for different purposes according to the material of the product. Ink, so that the quality is guaranteed.
The flow of the printing machine is divided into the following four steps:
1. Evenly cover the ink on the steel plate with a brush.
2. The excess ink is scraped off by a doctor blade.
3. Decrease the ink from the print head to the steel plate.
4. Drop the print head down until the product covers the pattern.
Pad printers for the industry: plastics, toys, glass, metal, electronics, sporting goods, stationery, optical industry, IC packaging industry.
Pad printer application scope: ruler, pen, ball, doll eyes, watches, camera, hair dryer shell, ceramics, medical equipment, rackets, tapes, electronic components, IC, CPU, DRAM, computer shell, buttons, decorative signs, Brother's case and other printing.
From the above information, we can see that printing and offset printing are all achieved through the transfer of intermediate substances, so the film is the same for both. In other words, the film is down.
Fourth, summary
Offset film is anti-word (ie, the film down), silk screen film is right (ie, film up).
If you later come into contact with the film, you can try to scratch it with a hard object. Look at which side you can scrape off the film
Today we specialize in demonstrating the difference between offset printing and screen printing film.
First, we introduce the basic principles of these two kinds of printing.
First, offset printing
According to the diagram, the offset printing plate should be a positive character, and the reversed character printed on the tape should be printed. When it is finally transferred to paper or other media, it is a positive image.
As we all know, the graphic version of the printing plate is obtained by the printing process of the film. The film has a certain thickness. In order to make full contact with the pattern and the PS plate as much as possible, the filming and printing of the film should be below, and at the same time The effect observed above should be a positive image, only in this way can ensure that the film and the PS version of the zero-distance contact. (Because the film has a thickness, if the packaging film 'target=_blank> is a transparent film between the film and the PS, the light will be refracted during the printing, and the pattern will be lost and deformed due to the exposure of the printing plate, which will affect the effect.)
Therefore, when offset film is used to read the content, the film should be on the opposite side. Therefore, the film is usually called downward or reversed. That is, if the film is on top, what we see should be reversed. Mirroring effect.
Second, silk screen
Because the screen printing is “leakage printingâ€, although the graphic image presented on the top of the screen printing plate is the main text, the printing plate of the silk printing plate is the reverse word on the side of the contact surface of the printing material.
The graphic version of the screen printing plate is also obtained through the printing of the film, but because of the screen printing process, there is no similar intermediate transfer media (such as offset printing) for offset printing, but the direct contact between the printing plate and the substrate. Therefore, the contents on the printing plate should be anti-words, but in order to ensure that the film surface of the film is fully in contact with the screen mesh yarn, only when the film of the silk printing film is a positive character. Therefore, the screen printing film should be upward, that is, if the film is on the top, we should see the contents of the word is usually called the film upward.
Third, printing
The principle of pad printing is to use the method of photographic plate making the desired printing pattern first, and then make the steel plate into a gravure and transferring it onto the object to be printed via a special adhesive printing head, and can be used for different purposes according to the material of the product. Ink, so that the quality is guaranteed.
The flow of the printing machine is divided into the following four steps:
1. Evenly cover the ink on the steel plate with a brush.
2. The excess ink is scraped off by a doctor blade.
3. Decrease the ink from the print head to the steel plate.
4. Drop the print head down until the product covers the pattern.
Pad printers for the industry: plastics, toys, glass, metal, electronics, sporting goods, stationery, optical industry, IC packaging industry.
Pad printer application scope: ruler, pen, ball, doll eyes, watches, camera, hair dryer shell, ceramics, medical equipment, rackets, tapes, electronic components, IC, CPU, DRAM, computer shell, buttons, decorative signs, Brother's case and other printing.
From the above information, we can see that printing and offset printing are all achieved through the transfer of intermediate substances, so the film is the same for both. In other words, the film is down.
Fourth, summary
Offset film is anti-word (ie, the film down), silk screen film is right (ie, film up).
If you later come into contact with the film, you can try to scratch it with a hard object. Look at which side you can scrape off the film
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