Printing ink and method for mending dry plate pinhole defect by using the same

Abstract

The invention is applicable to the technical field of mask defect repair methods, and provides a printing ink for repair. The printing ink comprises the following raw materials according to the parts by weight: 78-94wt% of a bonding agent, 5-20wt% of a pigment, and 0.5-2wt% of a diluent, wherein, the bonding agent is an epoxy resin or phenolic resin; the pigment is carbon powder, such as graphite; and the diluent is any one of toluene, xylene, trimethylbenzene, turpentine or camphorated oil. The invention further provides a method for repairing dry plate pinhole defects by the printing ink. The printing ink and the method for repairing the dry plate pinhole defects can effectively repair the dry plate pinhole defects, and cause the repaired dry plate to withstand a plurality of times of wiping and cleaning with organic cleaning agents, inorganic cleaning agents or deionized water, and cause the dry plate to have excellent adhesive force and light resistance, thus effectively improving the quality of the dry plate.

Description

technical field [0001] The invention belongs to the technical field of mask plate defect repair methods, in particular to an ink and a method for repairing pinhole defects of a dry plate using the ink. Background technique [0002] At present, the dry plate in the mask plate industry often produces pinhole defects. The pinhole defect is also called white defect in the mask plate industry. It refers to the influence of certain factors during the production and use of the dry plate. The defects formed by light-transmitting holes appear in the originally black shading area of ​​the graphic effective area, and are also called sags or broken lines with changes in their size, position, and shape. Repairing such pinhole defects mainly involves the use of red clay, professional film repair pens or other light-blocking substances. Although red clay can be used for repairing, it can resist the wiping of organic solvents, but it will be damaged when it encounters water or high humidity...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an ink and a method for using the ink to repair pinhole defects in dry plates, aiming to solve the problem of insufficient adhesion after repairing with other repair materials and repair methods in the dry plate industry

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