Screen printing mesh plays an important role in printing. However, vignetting may appear when using screen printing mesh. In order to make good use of screen printing mesh, we need to know how to prevent vignetting. MAISHI Mfg, as the best partner of mesh, would like to offer you some tips.
In order to prevent the appearance of vignetting and improve the quality of plate making and printing, the following measures can be taken.
1 Use a colored screen to make plate making as much as possible without using a white screen, but use red, yellow, orange and other colored screens to make plates, use the color of the screen itself to absorb the light from the source, and reduce the reflection of the screen light and scattering phenomenon, achieving the purpose of preventing vignettes.
2 Pre-coating vignette prevention liquid method Pre-coating vignette prevention liquid is a solution that is made of ethanol and cresol and ethanol-soluble red dye, and is blended according to a certain ratio. Before coating this solution, the screen must be cleaned and dried, then the shading prevention solution is applied and dried immediately. After drying, the photoresist can be coated and printed, so as to prevent the appearance of vignetting.
3 When using screen printing mesh for printing, pay attention to the plate negative and the screen printing plate to be compact and close to ensure that the photosensitive material receives light evenly, to achieve the effect of preventing the appearance of vignetting.
Welcome to the inquiry MAISHI team to get more technical support.
In order to prevent the appearance of vignetting and improve the quality of plate making and printing, the following measures can be taken.
1 Use a colored screen to make plate making as much as possible without using a white screen, but use red, yellow, orange and other colored screens to make plates, use the color of the screen itself to absorb the light from the source, and reduce the reflection of the screen light and scattering phenomenon, achieving the purpose of preventing vignettes.
2 Pre-coating vignette prevention liquid method Pre-coating vignette prevention liquid is a solution that is made of ethanol and cresol and ethanol-soluble red dye, and is blended according to a certain ratio. Before coating this solution, the screen must be cleaned and dried, then the shading prevention solution is applied and dried immediately. After drying, the photoresist can be coated and printed, so as to prevent the appearance of vignetting.
3 When using screen printing mesh for printing, pay attention to the plate negative and the screen printing plate to be compact and close to ensure that the photosensitive material receives light evenly, to achieve the effect of preventing the appearance of vignetting.
Welcome to the inquiry MAISHI team to get more technical support.
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