Thermoplastic printing material for material stacking type color 3D printing and optical parameter regulation and control method thereof

By controlling the optical properties of PLA and PETG materials, the problem of unstable color change in the thickness direction of FDM 3D printing materials was solved, achieving stable color superposition and high-precision color printing effect.

CN121950001APending Publication Date: 2026-05-01MAANSHAN YOUYUAN NETWORK TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202610051026.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-15
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing FDM 3D printing materials have difficulty forming continuous and controllable color changes in the thickness direction. They suffer from uncontrollable occlusion effects, excessively high color rendering thresholds, and desaturation caused by haze. Furthermore, there is a lack of a unified method for predicting the color layering effect of multi-layer materials.

Method used

Thermoplastic printing materials using PLA and/or PETG as the matrix are used to ensure that the material has moderate transparency in a single layer and sufficient color development without whitening in multiple layers by adjusting the transmission characteristics, scattering characteristics and color absorption characteristics. A material stacking scheme database is constructed by combining the reverse control method.

Benefits of technology

It achieves optical color mixing in the thickness direction, ensuring color purity and stable color superposition relationships, improving color control accuracy, and supporting high color accuracy color 3D printing.

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Abstract

The invention discloses a thermoplastic printing material for material stacking type color 3D printing and an optical parameter regulation and control method thereof.The thermoplastic printing material uses PLA and / or PETG as a matrix, the transparency, the light scattering characteristic and the coloring absorption characteristic are cooperatively regulated and controlled, and the target color overlapping effect of the color overlapping behavior of multiple layers of materials is combined; reverse optimization is carried out on optical parameters of the material, so that the material has limited but sufficient light transmissivity under the single-layer printing thickness, complete color development can be realized under limited-layer stacking, meanwhile, an upper-layer material cannot completely shield a lower-layer material, and color desaturation caused by too high haze is avoided, so that a stable and predictable multi-layer color stacking effect is formed; the method can be used for constructing a material stacking scheme database, and high-color quasi-color 3D printing is achieved.
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