Method for preparing high-purity lapis lazuli pigment

By combining a composite coating of beeswax, resin, and rosin with temperature-controlled melting, 200-mesh filtration, dynamic air drying, and stepped ultrasonic cleaning, the problem of poor purification of lapis lazuli pigment was solved, and high-purity and high-color lapis lazuli pigment was prepared, meeting the artistic needs of traditional murals.

CN121377053BActive Publication Date: 2026-07-24BEIJING JIYUAN AESTHETIC CULTURE & ART TRAINING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING JIYUAN AESTHETIC CULTURE & ART TRAINING CO LTD
Filing Date
2025-09-17
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The purification effect of lapis lazuli pigment in existing technologies is poor, resulting in low hue purity of fine particles, which cannot meet the needs of high-precision artistic creation, and there is also a risk of chemical residue, which affects the development and cultural protection of rock painting and murals.

Method used

The process employs a composite coating of beeswax, resin, and rosin, combined with temperature-controlled melting, 200-mesh filtration, dynamic air drying, mechanical kneading, and stepped ultrasonic cleaning to create directional microcracks and remove impurities, thereby improving the purity and color of the fine particles.

Benefits of technology

The purity of lapis lazuli particles of 350 mesh or finer has been increased to 85%-90%, the CIE b* value has reached ≤-40, the color index has been restored to the standard of traditional murals, the interference of mineral impurities has been eliminated, the risk of chemical residues has been reduced, and energy consumption has been reduced.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121377053B_ABST
    Figure CN121377053B_ABST
Patent Text Reader

Abstract

The application discloses a method for preparing high-purity lapis lazuli pigment, and relates to the technical field of mineral pigment preparation.The method comprises the following steps: preparing materials (lapis lazuli powder, beeswax, resin and pine resin are weighed according to a proportion of 4:1:1:2), mixing and heating to a liquid state, cooling and air-drying for 5-7 days, washing with alkaline water (40-45 DEG C warm alkaline water, 1 hour), removing wax in boiling water combined with ultrasonic cleaning, and drying the powder.The lapis lazuli pigment has a purity of 85%-90% for particles of 350 mesh or above after the method is verified by an example, a color saturation is improved by 32%, and the application requirement of traditional art is met.The method is simple in operation, solves the problems of low purity of lapis lazuli pigment and insufficient color of fine particles of 350 mesh or above in the prior art, and can effectively improve the quality of the pigment.
Need to check novelty before this filing date? Find Prior Art