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Preparation method of natural plant pigment

A production method and technology of natural plants, applied in botanical equipment and methods, natural dyes, plant preservation, etc., can solve problems such as deformation, resource waste, and difficulty in long-term storage, and achieve simple production processes, prevent oxidative discoloration, and inhibit The effect of mold growth

Pending Publication Date: 2019-02-12
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The excessive packaging of modern commodities and the development of the express delivery industry will also produce a large amount of wrapping paper and packaging boxes. These waste items are rarely recycled for secondary use, and most of them are discarded at will. This is not only a waste of resources, but also Cause environmental pollution and burden; at the same time, some leaves, vegetable leaves, fruit peels and petals are usually thrown away as garbage, and occasionally used directly for art paintings, but because the raw materials are easy to rot, deteriorate, become brittle, deformed and discolored, so Art paintings made with these materials are difficult to preserve for a long time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Soak color materials such as leaves, vegetable leaves, fruit peels or petals of different colors in the preservative solution for 24 hours; then mix the materials with waste newspapers at a volume ratio of 1:0.5, and stir them into pieces with a diameter of 5 mm with a mixer ; Mix the fragments, bisphenol A epoxy resin and T31 curing agent evenly according to the volume ratio of 1:1:0.35 to make composite pigments of different colors, and store them in a sealed place away from light;

[0016] The green pigment is spinach leaves, and the preservative solution used is composed of 50mL of 95% ethanol, 20mL of glycerin, 50g of copper sulfate, 5g of vitamin C, 10g of sodium chloride, 5g of alum, 10g of sodium benzoate and adding water to 2000mL; the red pigment is For red rose petals, the preservative solution is composed of 95% ethanol 5mL, glycerin 30mL, lemon juice 50mL, vitamin C 5g, sodium chloride 10g, alum 5g, sodium benzoate 10g, add water to 2000mL; The composition ...

Embodiment 2

[0019] Soak color materials such as leaves, vegetable leaves, fruit peels or petals of different colors in the preservative solution for 48 hours; then mix the materials with waste napkins at a volume ratio of 1:2, and stir them into pieces with a diameter of 1 mm with a blender ; Mix the fragments, bisphenol A epoxy resin and T31 curing agent evenly according to the volume ratio of 1:3:0.15 to make composite pigments of different colors, and store them in a sealed place away from light;

[0020] The green pigment is made of poplar leaves, and the preservative solution used is composed of 80mL of 95% ethanol, 50mL of glycerin, 50g of copper sulfate, 8g of vitamin C, 5g of sodium chloride, 10g of alum, 20g of sodium benzoate and adding water to 2000mL; the red pigment is For purple sweet potato skin, the preservative solution is composed of 95% ethanol 50mL, glycerin 20mL, lemon juice 50mL, vitamin C 5g, sodium chloride 10g, alum 5g, sodium benzoate 10g, add water to 2000mL; the...

Embodiment 3

[0023] Soak leaves, vegetable leaves, peels or petals of different colors in the preservative solution for 28 hours; then mix the raw materials with waste corrugated paper at a volume ratio of 1:1, and stir them into pieces with a diameter of 3 mm with a mixer ; Mix the fragments, bisphenol A epoxy resin and T31 curing agent evenly according to the volume ratio of 1:2:0.3 to make composite pigments of different colors, and store them in a sealed place away from light;

[0024] The green pigment is green apple peel, and the preservative solution used is composed of 100mL of 95% ethanol, 30mL of glycerin, 50g of copper sulfate, 5g of vitamin C, 6g of sodium chloride, 5g of alum, 20g of sodium benzoate and adding water to 2000mL; It is red maple leaves, and the preservative solution is composed of 70mL of 95% ethanol, 10mL of glycerin, 50mL of lemon juice, 10g of vitamin C, 5g of sodium chloride, 20g of alum, 15g of sodium benzoate and adding water to 2000mL; the yellow pigment is...

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Abstract

The invention relates to a preparation method of a natural plant pigment, and belongs to the field of preparation of pigments. The preparation method of composite pigment comprises the following stepsof soaking tree leaves, vegetable leaves, fruit peels or flower petals and other raw materials of different colors into a fresh-keeping solution for 24h or longer; mixing the raw materials and wastepaper according to a volume ratio of 1 to (0.5 to 2), and stirring into crushed pieces with diameter of 1 to 5 mm by a stirring machine; uniformly mixing the crushed pieces, epoxy resin and a curing agent according to a volume ratio of 1 to (1 to 3) to (0.15 to 0.35), so as to obtain the composite pigment of different colors; sealing and storing under the light-shading condition. The preparation method has the advantages that the waste of resources and pollution to environment due to deliberate discard of waste articles can be avoided; the raw materials are poisonless and harmless, the preparation process is simple, and the preparation method is suitable for being popularized.

Description

technical field [0001] The invention belongs to the field of pigment preparation. Background technique [0002] The excessive packaging of modern commodities and the development of the express delivery industry will also produce a large amount of wrapping paper and packaging boxes. These waste items are rarely recycled for secondary use, and most of them are discarded at will. This is not only a waste of resources, but also Cause environmental pollution and burden; at the same time, some leaves, vegetable leaves, fruit peels and petals are usually thrown away as garbage, and occasionally used directly for art paintings, but because the raw materials are easy to rot, deteriorate, become brittle, deformed and discolored, so Art paintings made with these materials are difficult to preserve for a long time. If the above-mentioned waste and old items in life can be reused to make commercialized art paintings, it will not only reduce environmental pollution, but also create new e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00A01N3/00C09D5/06C09D163/00C09D7/63
CPCC09B61/00A01N3/00C09D5/06C09D7/63C09D163/00
Inventor 徐婕刘敏郭江城
Owner BEIJING UNIV OF TECH
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