ANTI-DOMING COMPOSITIONS FOR A SHADOW-MASK AND PROCESSES FOR PREPARING THE SAME.

摘要

The present invention provides an anti-doming composition for a shadow-mask which reduces about above 50 percent of the anti-doming ratio by restricting temperature increase. Further more. The shadow-mask of the present invention has a low production cost and easiness during processes. The present invention provides an anti-doming composition for a shadow-mask comprising a vehicle, an electron reflecting material selected from the group consisting of bismuth oxide, lead and tungsten oxide, and z zeolite. And the present invention provides a shadow-mask comprising a steel layer having a plurality of holes for passing electron beams therethrough and a coating layer formed on the steel layer by using the anti-doming composition. It is preferable that an amount of said a zeolite is 10 to 90 weight percent to the total amount of the composition, and the coating layer is prepared by a silk screen printing method and has a thickness of 3 to 30 mum.