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Organic-inorganic hybrid nano pigment from natural plants and preparing process and application thereof

A natural plant and nano-pigment technology, applied in the field of natural plant pigments and their preparation, can solve the problems of uncontrollable particle size, difficulty in coloring application, unstable structure, etc.

Inactive Publication Date: 2019-04-19
上海崇明木棉花开手工社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method only utilizes the complexation of metal ions to form large insoluble particles with the combination of dye molecules. Difficulty with later application of coloring
At present, there is still a lack of a stable, controllable particle size, natural plant pigment with strong coloring ability and its preparation method

Method used

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  • Organic-inorganic hybrid nano pigment from natural plants and preparing process and application thereof
  • Organic-inorganic hybrid nano pigment from natural plants and preparing process and application thereof
  • Organic-inorganic hybrid nano pigment from natural plants and preparing process and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Wood blue (blue) organic-inorganic hybrid nanopigments derived from natural plants

[0052] The weight ratio of each component is:

[0053] Natural plant pigment: nano inorganic particle: stabilizer: surface modifier=1:2.5:0.375:1.125;

[0054] in:

[0055] The natural plant pigment is wood blue pigment, the nano-inorganic particles are white carbon black, the particle size is 100 nanometers, the stabilizer is P123, and the surface modifier is alum;

[0056] Preparation:

[0057] (1) Preparation of natural plant dyeing liquid: pulverize and sieve the indigo, and then pulverize and sieve to obtain a powder below 200 mesh, then treat it with hot and humid steam for 2 hours, and extract the pigment in the natural plant with 60% ethanol by volume, i.e. The natural plant dyeing solution can be obtained;

[0058] The ratio of solid to liquid is 1:5, the extraction time is 60min, the extraction temperature is 35°C; the stirring speed is 800rpm;

[0059] (2) Preparation of...

Embodiment 2

[0073] The weight ratio of each component is:

[0074] Natural plant pigment: nano inorganic particle: stabilizer: surface modifier=1:1:0.375:0.5

[0075] The natural plant pigment is curcumin, the nano-inorganic particle is titanium dioxide, the particle size is 200nm, the stabilizer is gum arabic powder, and the surface modifier is calcium acetate;

[0076] The preparation method is as follows:

[0077] (1) Preparation of natural plant dyeing liquid: pulverize turmeric, sieve, and then pulverize and sieve to obtain a powder below 200 mesh, then treat it with hot and humid steam for 2 hours, and finally extract the pigment in the natural plant with 70% ethanol, and feed the liquid The ratio is 1:10g / mL, the extraction time is 120min, the extraction temperature is 50°C; the stirring speed is 800rpm;

[0078] (2) Preparation of nano-inorganic particle dispersion: adding titanium dioxide, a stabilizer and a surface modifier to water to obtain a nano-inorganic particle dispersi...

Embodiment 3

[0093] The weight ratio of each component is:

[0094] Natural plant pigment: nano inorganic particles: stabilizer: surface modifier=1:0.4:0.3:0.3;

[0095] The natural plant pigment is safflower pigment, the nano-inorganic particles are a mixture of white carbon black and titanium dioxide, the weight ratio is 1:1, the particle size is 300nm, the stabilizer is guar gum powder, and the surface modifier is cream of tartar;

[0096] Preparation:

[0097] (1) Preparation of natural plant dyeing liquid: pulverize and sieve safflower, then pulverize and sieve to obtain a powder below 200 mesh, then treat it with hot and humid steam for 2 hours, and finally extract the pigment components in the natural plant with 80% ethanol, The solid-liquid ratio is 1:30, the solid-liquid ratio is g / mL, the extraction time is 360min, the extraction temperature is 65°C; the stirring speed is 1200rpm.

[0098] (2) Preparation of nano-inorganic particle dispersion: adding nano-inorganic particles, s...

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Abstract

The invention discloses an organic-inorganic hybrid nano pigment from natural plants and a preparation method and application thereof. The organic-inorganic hybrid nano pigment is a hybrid of naturalplant pigment, nano inorganic particles, a stabilizer and a surface modifier, wherein the weight ratio of natural plant pigment to nano inorganic particles to the stabilizer to the surface modifier is1: 0.2-3:0.2-0.7:0.2-1.5. The organic-inorganic hybrid nano pigment can be used in cosmetics, food, medicine, children's pigment and the like, and has rich material source, high safety and health, complete color system, natural color tone, certain health care function and relatively bright color, has good dispersibility, photothermal stability and coloring power, which is especially suitable forcoloring tablet sugar coating, candy and high-end cosmetics, and also suitable for coloring daily chemical products, hair dyes, printing ink, rubber, children toys and underwear products, and has wideprospect.

Description

technical field [0001] The invention relates to a natural plant pigment and its preparation method and application. Background technique [0002] Organic pigments have the advantages of a wide range of colors, vivid colors, and excellent tinting power, but they are more expensive than inorganic pigments and have problems in terms of durability and heat resistance. However, in daily production and life, organic pigments are more popular and praised than inorganic pigments. Organic pigments are mainly used in paint, ink, rubber, fiber, paper, leather, cosmetics, etc. However, most of the synthetic organic pigments are obtained by chemical methods. The raw materials of water-soluble synthetic pigments are mostly chemical products such as benzene, toluene, and naphthalene. R—N, N—R' bonds, benzene ring or xanthene structure compounds, so many synthetic organic pigments have certain toxicity, and the variety, scope and quantity of use must be strictly controlled to limit the al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/56C09C1/36C09C3/08A61K8/25A61K8/29A61K8/362A61K8/73A61K8/9789A61Q1/06A61Q1/08
CPCA61K8/25A61K8/29A61K8/362A61K8/737A61K8/9789A61K2800/412A61Q1/06A61Q1/08C09C1/3669C09C1/56C09C3/08
Inventor 周超宋荣耀袁赛萍
Owner 上海崇明木棉花开手工社
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