Introduction to the use of printed control strips
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Printing needs to be digitized, standard measurement and control tools make printing inspection more relevant, and measurement and control equipment for various processes is indispensable.
Printing plate control strip
The print control strip is used to provide appropriate exposure conditions for the PS plate and film for reference purposes, and can be used to detect the sensitivity of the developer for maintenance purposes.
Japan FUJI Printing Control Strips Fuji SteP Guide P has 15 steps, each with a density interval of 0.15 and a density range of 2.15.
Swiss Ugra print control strip, UGRA print control strip is the printing and development control strip developed by the German Institute of Printing and Reproduction Technology, is the world's most advanced control strip, Ugra plate control wedge (PCW) 1982 The version control bar function is divided into five functional sections, each with its own different functions.
The first paragraph: used to control the development of the plate, you can also check the exposure of the plate.
The second paragraph: the micro coil is used to control the exposure time.
The third paragraph: the network segment, divided into 10% outlets to 100% of the field 10 blocks. It is used to check exposure development and is also used as a benchmark for measurement of printed characteristic curves.
The fourth paragraph: the fine mesh along different angles, so that the printer can visually check the printer for dot deformation and ghosting.
The fifth paragraph: the fine dot segment is divided into 0.5% to 5% and the negative image is 95% to 99.5%, which is used to check the printing process and the skynet is reduced.
Printed control strip
The German FOGRA-printing control strip can not only check the dark tone, but also adjust the dot of the middle adjustment, and also check the deformation of the dot and the ink overprinting.
The Swiss Brunner-Brunal color signal strip adds a print quality control strip and adds an ink control section and an ultra-fine measurement section to control both the quality of the print and the quality of the print. By using the dot shape change of the hyperfine section, it is possible to judge and check the ghosting and the deformation of the dot by the naked eye.
US GATF-star is a signal strip for visual inspection
When the amount of ink supplied in the printing is too large, the dots are deformed, and the center of the star will change significantly, thereby helping people to find the quality problems in printing in time.
FOGRA printing precision control strip
It is used to detect the degree of vacuum pumping.