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Solve The Problem Before Outputting The Printing Plate

     In the packaging and printing industry, there are often various printing plate problems.Solve The Problem Before Outputting The Printing Plate

Solve The Problem Before Outputting The Printing Plate

General inspection methods.Solve The Problem Before Outputting The Printing Plate

This method is widely used in output centers and design companies. Its main equipment is plate viewing table and densitometer. Densitometer is the key equipment for testing printing plate.Solve The Problem Before Outputting The Printing Plate

       Its basic function is to read the tone percentage of mesh tone, so as to judge whether the size of mesh tone dot generated by plate making machine is correct. Solve The Problem Before Outputting The Printing Plate

     For example, if the 40% gradient in the original drawing corresponds to the measured density on the printing plate, is it 40%. The following are the main inspection aspects of general inspection and their meanings:Solve The Problem Before Outputting The Printing Plate

a) Test the dot ladder attached to the printing plate to judge whether each step of the printing plate is correct. It mainly checks whether the plate making process and its parameters.Solve The Problem Before Outputting The Printing Plate

      (such as development speed, temperature, time and developer concentration) are correct, and may also include the problems of the plate making machine itself, such as the quality of linearization.Solve The Problem Before Outputting The Printing Plate

b) Observe the quality of the printing plate: Solve The Problem Before Outputting The Printing Plate

     including whether the exposure is uniform and whether the printing plate is scratched.Solve The Problem Before Outputting The Printing Plate

c) Check postscript error: it is used to check whether the postscript interpreter misses the content in the interpretation of the file. It is mainly used to observe whether the content on each printing plate is not output. Solve The Problem Before Outputting The Printing Plate

      For color separations, in addition to single observation, four color separations should be observed together to see whether the tone and concentration of the image are normal and whether the registration is correct.Solve The Problem Before Outputting The Printing Plate

2. Check the proofing system.Solve The Problem Before Outputting The Printing Plate

       Now CTP output center usually uses color digital proofing before printing plate. If any problem is found, modify the electronic document. The color sample after successful proofing will become the standard sample for color printing. Solve The Problem Before Outputting The Printing Plate

      This is different from the traditional proofing machine for producing film and reproducing into printing plate, and it is also the problem to be solved and improved by CTP.Solve The Problem Before Outputting The Printing Plate

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