Knotless screen printing plate with coexistence of equal-interval grid lines and non-equal-interval grid lines and manufacturing process

By designing a gridless grid plate with equal spacing and non-equal spacing grid lines, combining lithography, etching, scanning line selection and hot pressing composite technology, the problems of insufficient adaptability and insufficient mechanical strength in the existing technology are solved, and high-precision and diversified screen printing effects and good mechanical properties are achieved.

CN119734517AActive Publication Date: 2025-04-01KUNSHAN HENGSHENG ELECTRONICS
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Patent Information

Application Number
CN202411950079.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-04-01
Estimated Expiration
2044-12-27

AI Technical Summary

Technical Problem

The existing gridless grid version cannot take into account the coexistence of equal-pitch and straight grid lines and non-equal-pitch and curved grid lines, resulting in insufficient adaptability, insufficient mechanical strength and problems of virtual printing, plugging and stress concentration during printing.

Method used

A gridless grid plate with equal spacing and non-equal spacing grid lines coexisting. The linear grid line slot holes are formed through the equal spacing area by lithography and etching technology. The non-equal spacing area is used to generate curved grid line slots, and the gradient grid line spacing is achieved in the transition area by combining lithography and scanning technology. The mesh is composed of a nickel alloy mesh fabric and polymer film. The composite is achieved through a hot pressing process, and the colloid is sprayed on equally spaced areas, and cross support lines are added to non-equally spaced areas to optimize strength.

Benefits of technology

It realizes diversification of grid lines distribution and high structural stability, improves the accuracy and adaptability of screen printing, ensures good light transmission performance and mechanical strength, extends the service life of the screen and improves printing quality and efficiency.

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Abstract

The invention relates to the technical field of solar cell silk-screen printing, and discloses a knotless screen printing plate with coexistence of equal-interval and non-equal-interval grid lines and a manufacturing process, the screen printing plate comprises an equal-interval area, a plurality of non-equal-interval grid lines, a plurality of non-equal-interval grid lines and a plurality of equal-interval areas, and the equal-interval area is composed of a plurality of straight grid lines with fixed intervals; the non-equal-interval area is composed of a plurality of bent grid lines with gradually-changed intervals; the transition region is located between the equal-interval region and the non-equal-interval region, and the grid line interval is gradually transited from equal interval to non-equal interval; the screen printing plate is formed by compounding nickel alloy screen cloth and a polymeric membrane, and compounding is achieved through a hot pressing technology. Forming straight grid line groove holes in the equidistant areas through photoetching and etching technologies; and generating bent grid line slotted holes in the non-equidistant areas through a scanning line selection technology. Through grid line area optimization design, photoetching and scanning line selection process combination and strengthening structure optimization, diversity of grid line distribution, improvement of screen strength and remarkable improvement of printing quality are achieved.
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