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Method for manufacturing working printing plate for production of color kinescope screen printing plate

A color picture tube, working technology, applied in the direction of photo-engraving process, optics, opto-mechanical equipment, etc. on the pattern surface, can solve the problems of flushing, pattern damage, difficult operation, etc., to prolong the service life, reduce the production cost, improve the The effect of work efficiency

Inactive Publication Date: 2012-07-11
CAIHONG GRP ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the finished working plate is used for a period of time, the graphics on the plate will have defects such as damage, making the working plate unusable. At this time, it is necessary to re-grind the working plate with damaged graphics to completely eliminate the unusable glass surface. Damaged graphics, and then carry out processes such as photosensitive adhesive coating and exposure, and then make a new working version
[0004] In the process of making the working plate, the glass of the working plate must be ground, otherwise the following problems will occur: 1) The adhesion between the photosensitive adhesive and the glass surface is poor, and the graphics on the glass surface will be washed in the subsequent process, such as developing 2) The damaged original graphics on the glass surface cannot be completely cleaned, which will affect the re-production of new graphics on the working glass
The resulting working version does not meet the requirements for use
However, the ground glass of the working plate will be bent, and the degree of bending will increase with the number of grinding times, resulting in the bending of the working plate glass after several times of grinding so that it can no longer be used
In addition, the curved glass of the working plate makes the operation of the post-process—such as the alignment process of the working plate very difficult

Method used

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  • Method for manufacturing working printing plate for production of color kinescope screen printing plate
  • Method for manufacturing working printing plate for production of color kinescope screen printing plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] According to the mass ratio of 100:0.5, water and commercially available tableware detergent were taken respectively to prepare a cleaning agent solution with a concentration of 0.5%; respectively, a new working glass and the prepared cleaning solution were taken, and the working glass was placed into the cleaning agent solution, degreasing and cleaning at a temperature of 30° C. for 12 hours to obtain a degreased working plate glass; according to a mass ratio of 8:100, take hydrofluoric acid and water respectively, add hydrofluoric acid to water, and stir evenly. Prepare the surface treatment liquid; use the ratio of 50ml surface treatment liquid per square meter of work plate glass, get the work plate glass after degreasing and the surface treatment liquid prepared respectively, adopt the method of spraying, use surface treatment liquid to the surface treatment liquid after degreasing The surface of the working plate glass is processed to obtain the working plate glass...

Embodiment 2

[0044] According to the mass ratio of 100:1, take water and commercially available tableware detergent respectively to prepare a cleaning agent solution with a concentration of 1%; take a new working plate glass and the prepared cleaning agent solution respectively, and place the working plate glass into the cleaning agent solution, degreasing and cleaning at a temperature of 50°C for 8 hours to obtain a degreased working plate glass; according to a mass ratio of 20:100, take hydrofluoric acid and water respectively, add hydrofluoric acid to water, and stir evenly. Prepare the surface treatment liquid; use the ratio of 200ml surface treatment liquid per square meter of work plate glass, get the work plate glass after degreasing and the surface treatment liquid obtained respectively, adopt the method of spraying, use the surface treatment liquid to the surface treatment liquid after degreasing The surface of the working plate glass is treated to obtain the surface-treated workin...

Embodiment 3

[0046] According to the mass ratio of 100:0.75, water and commercially available tableware detergent were taken respectively to prepare a cleaning agent solution with a concentration of 0.75%; respectively, a new working glass and the prepared cleaning solution were taken, and the working glass was placed into the cleaning agent solution, degreasing and cleaning at a temperature of 40°C for 10 hours to obtain a degreased working plate glass; according to the mass ratio of 14:100, take hydrofluoric acid and water respectively, add hydrofluoric acid to water, and stir evenly. Prepare the surface treatment liquid; use the ratio of 125ml surface treatment liquid per square meter of work plate glass, get the work plate glass after degreasing and the surface treatment liquid that makes respectively, adopt the method for spraying, use surface treatment liquid to the surface treatment liquid after degreasing The surface of the working plate glass is treated to obtain the surface-treate...

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Abstract

The invention relates to a method for manufacturing a working printing plate for the production of a color kinescope screen printing plate. The method comprises the following steps of: preparing cleaning agent solution with water and dishware cleanser essence; placing new glass into the cleaning agent solution for degreasing, or placing the repeatedly used glass into stripping solution for stripping, and then degreasing with the cleaning agent solution; preparing a surface treatment fluid from hydrofluoric acid and water; carrying out surface treatment on the degreased glass with the surface treatment fluid; coating photoresists on the surface of glass after surface treatment, drying and exposing in a vacuum environment; flushing and developing the photoreceptive glass for firming membrane, dyeing, centrifuging and drying; spraying a protection film on the surface of the dyed glass and solidifying the protection film; placing the glass under a microscope, adjusting the relative position of a figure and splicing positioning dowels to manufacture the working printing plate. The invention solves the problems that the working printing plate glass is bent and deformed due to grinding to cause short service life and low figure resolution of the working printing plate glass, reduces the manufacturing cost of the working printing plate and improves the quality of the working printing plate and the working efficiency of an alignment procedure.

Description

technical field [0001] The invention belongs to the technical field of color picture tube manufacturing, and in particular relates to a method for making a working plate used in the production of color picture tube screen plates. Background technique [0002] Screen plates are used in the manufacture of color picture tubes, and the production of the screen plates is usually by photolithography: first, a working plate with graphics is made, and then the graphics on the working plate are transferred to the photosensitive adhesive coated with photoresist through exposure. The steel strip, and then the steel strip is made into a screen version through a series of processes such as development and corrosion. [0003] When making a work plate, first use a grinder to grind the glass surface of the work plate evenly to increase the roughness of the glass surface of the work plate and improve the adhesion between the photosensitive glue and the glass surface when the photosensitive g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/12G03F7/00
Inventor 李鑫鑫
Owner CAIHONG GRP ELECTRONICS CO LTD