Self-enhanced black coloring material based on natural photosensitive substance and preparation method of self-enhanced black coloring material

Abstract

The invention discloses a black coloring material based on self-enhancement of a natural photosensitive substance, and belongs to the technical field of fine chemical engineering and coloring materials. The material is prepared by compounding a base material resin as a base material with a black coloring agent, a natural photosensitive active component, a functional auxiliary agent and a solvent, the natural photosensitive active component is subjected to oxidative polymerization and deep color development under the action of illumination and oxygen, so that the black color of the system is continuously deepened, the gloss is continuously improved, meanwhile, a compact cross-linked structure is formed, and the coloring effect and the protection performance are self-enhanced along with time. The preparation method is not limited in application form, can be widely applied to the fields of coatings, pigments, pigments, coatings, coloring agents, chemical engineering, automobiles, machinery, daily products and the like, and is high in stability, green, environment-friendly and extremely high in commercial value.

Description

Technical Field

[0001] This invention belongs to the field of fine chemical technology, specifically relating to the field of black coloring materials. In particular, it relates to a black coloring material based on the self-reinforcing oxidation of natural photosensitive substances, which can achieve a blacker and brighter color over time, and its preparation method. It can be widely used in various coloring and protection scenarios such as coatings, pigments, colorants, coatings, inks, chemicals, automobiles, machinery, hardware, plastics, wood products, construction, and equipment. Background Technology

[0002] Black coloring materials are core basic materials for industries such as fine chemicals, pigments, coatings, plastic products, hardware, automobiles, and daily consumer goods. Existing black coloring systems generally suffer from problems such as easy fading, whitening, loss of gloss, aging, and performance degradation, making it impossible to actively improve color and protective performance. Some chemically modified materials have poor environmental performance, while natural photosensitive coloring systems have not yet formed standardized, scalable black coloring products, leaving a huge technological and market gap. Summary of the Invention

[0003] Purpose of the invention: This invention provides a self-reinforcing black coloring material based on natural photosensitive substances. It utilizes the characteristics of natural substances to automatically oxidize, deeply develop color, and continuously darken and brighten under photo-oxidation conditions, thus overcoming the industry pain points of traditional black materials being prone to fading and losing gloss. It achieves dual self-reinforcing effects in coloring and protective performance, and is compatible with various product forms such as coatings, pigments, colorants, coatings, and colorants, making it suitable for large-scale industrial applications in all fields.

[0004] Technical solution: A black coloring material based on self-reinforced natural photosensitive substances, composed of the following components by weight: Base resin: 30-60 parts, one or more of epoxy resin, polyurethane resin, acrylic resin, and fluorocarbon resin; Black coloring component: 5-15 parts, carbon black-based colorant; Natural photosensitizing active components: 2-8 parts, which are one or more combinations of polyphenols, tannins, flavonoids, anthraquinones, alkaloids, lignins, melanin precursors, and plant extract photosensitizing color-developing components; Functional additives: 1-5 parts, including dispersant, leveling agent, rust inhibitor, and curing agent; Solvent: 10-30 parts, one or more of ethyl acetate, xylene, and deionized water.

[0005] Appendix Figure 1 Schematic diagram of the composition of coloring material The diagram only illustrates the structural relationship of the components and does not represent the actual weight ratio. It is used to explain the composition system of the black coloring material of the present invention.

[0006] Preparation method: 1. The base resin and solvent are stirred to form a base liquid; 2. Add black coloring component and dispersant, disperse and grind at high speed; 3. Add natural photosensitizing active ingredients, leveling agents, and rust inhibitors, and mix thoroughly; 4. Add curing agent, stir and filter to obtain self-reinforcing black coloring material.

[0007] Appendix Figure 2 Preparation process flow chart The diagram shows the complete preparation process, which is suitable for large-scale industrial production.

[0008] Beneficial effects: 1. Naturally photosensitive self-blackening and glossy: It automatically oxidizes and develops color under light and oxygen. The longer it is exposed to light, the deeper the black color becomes and the higher the gloss becomes, completely solving the problems of fading, whitening, and loss of gloss.

[0009] 2. Self-enhancing performance: The cross-linking density of the system continuously increases, and the weather resistance, salt spray resistance, corrosion resistance and adhesion are continuously improved.

[0010] 3. Full range of products: Not limited to coatings, but can be used as pigments, colorants, coatings, colorants, inks, and dyeing materials.

[0011] 4. Applicable to all scenarios: covering chemical, automotive, machinery, hardware, plastic, wood, leather, construction, and equipment industries.

[0012] 5. Natural and Green: Made with natural photosensitive materials, it is non-toxic, non-volatile, environmentally friendly and safe.

[0013] 6. Low cost and easy mass production: It is compatible with existing production processes and can be directly mass-produced industrially. Detailed Implementation Example

[0014] The base resin consists of 40 parts epoxy resin, the black coloring component consists of 8 parts carbon black-based colorant, the natural photosensitive active component consists of 3 parts plant polyphenols, the dispersant consists of 0.5 parts, the leveling agent consists of 0.3 parts, the rust inhibitor consists of 0.6 parts, the curing agent consists of 1 part, and the solvent consists of 20 parts ethyl acetate. The base resin and solvent are stirred and mixed to form a base liquid; the black coloring component and dispersant are added and dispersed at high speed and ground; then the natural photosensitive active component, leveling agent, and rust inhibitor are added and mixed evenly; finally, the curing agent is added, stirred, and filtered to obtain a natural photosensitive self-reinforcing black coloring material.

[0015] Example 2: The base resin is 50 parts polyurethane resin, the black coloring component is 12 parts carbon black colorant, the natural photosensitive active component is 5 parts tannin, the dispersant is 0.8 parts, the leveling agent is 0.5 parts, the rust inhibitor is 0.9 parts, the curing agent is 1.5 parts, and the solvent is 25 parts xylene.

[0016] The natural photosensitive self-reinforcing black coloring material was prepared according to the process described in Example 1. Example 3: The base resin consisted of 35 parts fluorocarbon resin, the black coloring component consisted of 6 parts carbon black-based colorant, the natural photosensitive active component consisted of 4 parts flavonoids, the dispersant consisted of 0.3 parts, the leveling agent consisted of 0.2 parts, the rust inhibitor consisted of 0.5 parts, the curing agent consisted of 0.8 parts, and the solvent consisted of 15 parts deionized water. The natural photosensitive self-reinforcing black coloring material was prepared according to the process described in Example 1.

[0017] Instruction manual illustrations: Figure 1 This is a schematic diagram of the composition of the black coloring material of the present invention, which only illustrates the structural relationship and does not represent the actual proportions. Figure 2 : This is a flowchart of the preparation process of the black coloring material of the present invention.

Claims

1. A black coloring material based on self-reinforced natural photosensitive material, characterized in that, Included by weight parts: The base resin consists of 30-60 parts, the black coloring component consists of 5-15 parts, the natural photosensitive active component consists of 2-8 parts, the functional additive consists of 1-5 parts, and the solvent consists of 10-30 parts. The natural photosensitizing active components include one or more of the following: polyphenols, tannins, flavonoids, anthraquinones, alkaloids, lignins, melanin precursors, and plant photosensitizing color-developing extracts.

2. The black coloring material according to claim 1, characterized in that, The material can be used as any one of the following: coatings, pigments, colorants, coatings, colorants, and inks.

3. The black coloring material according to claim 1, characterized in that, The black coloring component is a carbon black-based colorant.

4. A method for preparing the black coloring material according to claim 1, characterized in that... include:

1. The base resin and solvent are stirred to form a base liquid; 2. Add black coloring component and dispersant, disperse and grind at high speed; 3. Add natural photosensitive active ingredients and functional additives and mix; 4. Add curing agent and filter to obtain the finished product.

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