A medium-gloss super-stain-resistant glaze based on double-network regulation, a preparation method thereof and ceramic tile

By using a dual-network controlled glaze design and a specific ratio of alkaline earth metals and network modifiers to form a nano-phase structure, the problem of super stain resistance and high transparency under medium gloss is solved, achieving a breakthrough in the comprehensive performance of the glaze in the range of 25-45 GU.

CN121573909BActive Publication Date: 2026-06-19肇庆市璟盛陶瓷有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
肇庆市璟盛陶瓷有限公司
Filing Date
2025-12-26
Publication Date
2026-06-19

AI Technical Summary

⚠Technical Problem

Existing technologies struggle to simultaneously achieve superior stain resistance and excellent light transmittance within a medium gloss range (25-45 GU), and traditional methods sacrifice the density and smoothness of the glaze, resulting in poor product stability.

⚗Method used

By employing a glaze design based on dual-network regulation, a nano-phase structure is formed by using alkaline earth metal network forming agents and network modifiers (CaO, MgO, BaO, ZnO, SrO, Li2O) in specific proportions, combined with appropriate amounts of K2O and Na2O, to prepare a glaze with medium gloss, super stain resistance and high transparency.

🎯Benefits of technology

With a medium gloss level of 25-45 GU, it achieves a stain resistance rating of ≥4 and a light transmittance of ≥60%, while maintaining good glaze hardness and chemical stability, breaking through the problem of performance harmony in traditional technologies.

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Abstract

This invention relates to the field of ceramic glaze technology, and discloses a medium-gloss, ultra-stain-resistant glaze based on dual-network regulation, its preparation method, and ceramic tiles. The chemical composition of the medium-gloss, ultra-stain-resistant glaze, by molar percentage, includes: SiO2 45-60%, Al2O3 10-25%, and a total molar amount of alkaline earth metal network forming agent of 15-32%, satisfying (CaO+MgO) / (BaO+ZnO)=0.8-1.5:1; a total molar amount of network modifier of 0.5-3.5%, satisfying SrO / Li2O=0.2-5:1; and a total content of K2O and Na2O of 1-4%. This invention induces the formation of a nano-phase structure by using a specific ratio of alkaline earth metal network forming agent, and then finely adjusts the phase separation interface energy and stability through the synergistic regulation of SrO / Li2O network modifier. This successfully solves the technical problem of achieving both strong stain resistance and high transparency of glaze at a medium gloss level of 25-45 GU. The resulting glaze has a silky soft luster, a delicate touch, and excellent chemical corrosion resistance and hardness, making it suitable for the production of high-quality ceramic tiles.
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