Application of ZnAl layered double hydroxides for the formulation of stable and safe cosmetic pigments

IF 1.3 4区材料科学 Q3 CHEMISTRY, APPLIED

Pigment & Resin Technology Pub Date : 2024-07-04 DOI:10.1108/prt-12-2023-0122

Xinrui Wang, Xiaomeng Hu, Xiangnan Feng, Xinyu Han, Qi Liu, Yueqin Li

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引用次数: 0

Abstract

Purpose

This study aims to produce composite pigments, including SHS/ZnAl-LDHs, IDS/ZnAl-LDHs and SNND/ZnAl-LDHs, with improved coloration, enhanced photostability and thermostability and biocompatibility.

Design/methodology/approach

The chemical structures of the composite pigments were characterized by X-ray diffraction spectroscopy and Fourier transform infrared spectroscopy. Photostability and thermal stability were assessed using ultraviolet-visible spectroscopy and colorimetry. The coverage of the dyes was determined through black-and-white tile testing, and specific RGB values were used to indicate color expressiveness. Finally, a four-color eyeshadow was formulated, and safety tests were conducted via human patch test and cellular assays to confirm the safety and reliability of the samples.

Findings

The experimental results demonstrate an enhancement in the photo and thermal stability of the SHS/ZnAl-LDHs, IDS/ZnAl-LDHs and SNND/ZnAl-LDHs composites, along with their superior performance in terms of covering power and color saturation. These composite pigments also exhibit high safety, making them well-suited for cosmetic applications.

Practical implications

The composite pigments based on hydrotalcite can be used in the cosmetic industry without causing any harm to the environment and human health.

Originality/value

The addition of hydrotalcite enables better application of pigments in cosmetics.

查看原文本刊更多论文

应用 ZnAl 层状双氢氧化物配制稳定安全的化妆品颜料

目的本研究旨在制备复合颜料，包括 SHS/ZnAl-LDHs、IDS/ZnAl-LDHs 和 SNND/ZnAl-LDHs，这些颜料具有更好的着色性、更强的光稳定性、热稳定性和生物相容性。紫外可见光谱和比色法评估了光稳定性和热稳定性。通过黑白瓦片测试确定了染料的遮盖力，并使用特定的 RGB 值来表示色彩表现力。实验结果表明，SHS/ZnAl-LDHs、IDS/ZnAl-LDHs 和 SNND/ZnAl-LDHs 复合颜料的光稳定性和热稳定性都有所提高，同时在遮盖力和色彩饱和度方面也表现出色。基于水滑石的复合颜料可用于化妆品行业，不会对环境和人类健康造成任何危害。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Pigment & Resin Technology 工程技术-材料科学：膜

CiteScore

2.80

自引率

21.40%

发文量

审稿时长

>12 weeks

期刊介绍： The journal looks at developments in: ■Adhesives and sealants ■Curing and coatings ■Wood coatings and preservatives ■Environmentally compliant coating systems and pigments ■Inks for food packaging ■Manufacturing machinery - reactors, mills mixing and dispersing equipment, pumps ■Packaging, labeling and storage ■Plus topical features and news on materials, coatings, industry people, conferences, books and so on ■Raw materials such as pigments, solvents, resins and chemicals ■Testing equipment and procedures