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A hair dye using nano silver as a coloring component and its preparation method

A technology of nano-silver and hair dye, which is used in medical preparations containing active ingredients, preparations for skin care, hair care, etc., can solve the problems of poor dyeing stability, high dependence, poor color fastness, etc. Long, extended storage life, the effect of reducing the transmittance

Active Publication Date: 2022-05-17
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the embodiments of the present invention is that the hair dyes in the prior art have high dependence on metal salts, poor color fastness, and poor dyeing stability.

Method used

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  • A hair dye using nano silver as a coloring component and its preparation method
  • A hair dye using nano silver as a coloring component and its preparation method

Examples

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Effect test

Embodiment 1

[0051] This embodiment provides a hair dye using nano-silver as a coloring component, which only contains one dose, including the following mass percentages:

[0052] 5-40% nano-silver after silver ion reduction treatment;

[0053] 1-5% thickener;

[0054] 2-10% dispersant; and

[0055] For the water of the balance, the sum of the percentages of each component is equal to 100%;

[0056] The pH value of the hair dye is 3-11.

[0057] Preferably, the nano-silver has a particle size of 1-100 nm.

[0058] Preferably, the reducing agent used in the silver ion reduction treatment is a plant reducing agent or a chemical reducing agent.

[0059] Preferably, the plant reducing agent comprises: one or both of Gallnut, tea, coffee, chrysanthemum, coriander, eucalyptus, pepper, safflower, henna, geranium, persimmon, annatto, sweet orange and banana A polyphenol-based natural reducing agent extracted from the leaves, flowers or seeds of the above plants.

[0060] The chemical reducin...

Embodiment 2

[0067] This embodiment provides a method for preparing a hair dye using nano-silver as a coloring component, such as the hair dye using nano-silver as a coloring component in Example 1, the method comprises the following steps:

[0068] Using a plant reducing agent or a chemical reducing agent to carry out silver ion reduction treatment on the nano-silver particles;

[0069] Embedding nano-silver in polymer wall material after silver ion reduction treatment;

[0070] Mix 5-40% nano-silver embedded in the polymer wall material after silver ion reduction treatment, 1-5% thickener, 2-10% dispersant and the rest of the water, and stir well Get hair color in cream or gel form. For example, 5-40% of nano-silver embedded in polymer wall material after silver ion reduction treatment is evenly dissolved in 40-90% water; then 1-2% thickener xanthan gum is evenly dispersed in 2- 5% dispersant propylene glycol; after adjusting the pH of the solution containing nano-silver particles, slo...

example 1

[0094] Hair dye components are:

[0095] Nano silver 5-40%, xanthan gum 1-5%, propylene glycol 2-10%, appropriate amount of pH regulator and preservative isothiazolinone.

[0096] The preparation steps of the hair dye are as follows: first crush the dried tea leaves into powder, mix the tea powder and distilled water at a solid-to-liquid ratio of 1:25, then heat and extract, then cool the extract and filter it through filter paper, and dilute the filtrate to 5% spare. Dissolve the silver nitrate particles in distilled water and prepare a solution with a concentration of 10 mmol / L for use. Mix 20g of diatomite with 1000mL of the above-mentioned diluted tea extract and stir for 1 hour. The disc-shaped diatomite has multiple pores inside and on the surface of the particles. This process is beneficial to the active substances in the tea extract, such as tea polyphenols. Adsorbed on diatomaceous earth, stir the filter residue with 400mL 10mmol / L silver nitrate solution at 80°C fo...

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Abstract

The invention discloses a hair dye using nano-silver as a coloring component and a preparation method thereof, and relates to the technical field of fine chemical industry cosmetics industry. The hair dye includes the following mass percentage: 5-40% silver ion reduction 1-5% thickener; 2-10% dispersant; and the balance of water, the sum of the percentages of each component is equal to 100%; the pH of the hair dye is 3-11. The invention utilizes the local surface plasmon resonance characteristic of the nano-silver particles to color the hair, has high dyeing rate, good color uniformity, excellent dyeing stability, color retention and washability, and simple hair dyeing operation steps.

Description

technical field [0001] The invention relates to the technical field of fine chemical industry and cosmetics industry, in particular to a hair dye using nano-silver as a coloring component and a preparation method thereof. Background technique [0002] Hair dye is the fastest growing class of products in cosmetics. Traditional hair dyes are mostly chemically synthesized dyes, such as azo dyes—aromatic amine dyes. These dyes are the fastest and have the best effect. However, long-term use of azo dyes may cause cancer. At the same time, long-term use of this chemically synthesized hair dye can also cause human skin allergic reactions, chronic accumulation poisoning, and fetal malformation may occur when pregnant women use it. [0003] Therefore, with the improvement of people's safety awareness, most of the natural dye hair dyes are now used to replace the above-mentioned chemically synthesized hair dyes. Natural dye hair dyes are usually colored with plant dyes, but plant dye...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/19A61K8/73A61K8/9789A61K8/9794A61K8/98A61K8/25A61Q5/10A61Q17/00A61Q19/08A61Q17/04A61Q5/00
CPCA61K8/19A61K8/732A61K8/738A61K8/9789A61K8/9794A61K8/987A61K8/25A61K8/73A61K8/736A61Q5/10A61Q17/005A61Q19/08A61Q17/04A61Q5/006A61K2800/413A61K2800/56
Inventor 唐颖杨舒颜
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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