Pigment for Paint - Example of Pigment in Paint in 2024

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Kingchroma pigment for paint types:
1. titanium dioxide: titanium dioxide is a kind of pigment with strong covering properties, white color and high gloss, which is one of the most commonly used white pigments in coatings. It is mainly used in indoor and outdoor architectural coatings, automobile paints, marine coatings, etc.;

2. Iron oxide pigment: Iron oxide pigment is one of the widely used pigments with good light resistance and stability, and a variety of colors can be made through different treatments, such as red, yellow, black, brown and so on. Iron oxide pigments are used in architectural coatings, automotive paints, industrial coatings, etc., and are also widely used in cosmetic, food and other industries;

3. Organic pigments for paints: organic pigments are mainly made from petrochemicals, and have high dyeing power and bright colors, as well as good chemical stability and light resistance. Organic pigments are suitable for all kinds of coatings, including architectural coatings, industrial coatings, wood coatings, etc.;

4. Metal pigments: metal pigments are mainly made by processing pure metal or with metal as the main component, such as copper powder, aluminum powder, chameleon powder and so on. These pigments can reflect light and produce unique metallic luster, mainly used in printing ink, plastic products, electroplating and other fields.

Paint Pigment Powder

Mica Powder

Thermochromic Pigment

Photochromic Pigments

Pearl Powder

Glow in the dark powder

Chameleon Powder

UV Powder

Reflective Pigment

Iron oxide powder

Titanium dioxide Pigment

Pigment for Paint FAQs

Commonly used colour pigment in paints:

1. Paint Pigment Powder

Paint pigment powders are the basis of paint color. Depending on the specific use and color, paint pigment powders are extracted from natural minerals, or made by chemical synthesis. Common pigments in paint include iron oxide, titanium dioxide, red lead, ultramarine and so on. They have a wide variety of colors due to different proportions and mixing methods.

2.White protective materials

As a kind of pigment, the white protective materials are indispensable in paint production. They contain one or more organic or inorganic substances. They are usually in primers, fillers and topcoats in paint pigments. They cannot only adjust the paint color, but also cover up cracks or defects on surfaces.

3. High-stability resin

Resins are often binders and catalysts for other components in paints. They are highly stable to keep pigment colors unchanged. They can relieve external influences to ensure the consistency and durability of appearance. Raw materials for resins include chemicals as well as natural and synthetic resins.

There are many types of pigments in paints, but pigment powders, white protective materials and high-stability resins are three main components. They are indispensable in building and automobile painting or furniture surfaces.

Steps to add pigment to paint:
1. Prepare a paint bottle, colorant (such as pigment, pigment powder or pigment liquid), stirring rod or mixing rod, vessel (such as a glass bottle or plastic vessel), etc.

2. Open the bottle and fill it with an appropriate amount of paint, approximately 1/3 to 1/2 of the bottle capacity.

3. Add the colorants for paint drop by drop according to the desired color effect. First, add a small amount of pigment. Then, gradually add more pigment to the desired concentration.

4. Fully stir the colorant via the stirring rod or mixing rod, until it is thoroughly mixed with the paint.

5. Test the color on a test plate via a brush or cotton swab. If the color is not satisfactory, continue to add the colorant or adjust the proportion, until the desired color effect is achieved.

6. Contain the remaining paint in a small bottle. Seal the bottom to prevent the paint from drying or deterioration. Keep the paint in a cool and dry place and away from direct sunlight.

There are usually four basic ingredients in paint: film-forming substances (resin, emulsion), pigments (including extender pigments), solvents and extenders (additives).

1. Film-forming substances are main components of films, including resins, resin processing products, cellulose derivatives, natural resins, synthetic resins and synthetic emulsions. They also include partially non-volatile active diluents. They are main substances to securely attach the paint on surfaces and form continuous films. As the basis of paint, they determine the basic properties of paint.

2. Aids include defoamers, leveling agents and some special functional aids, such as substrate wetting agents. They cannot form films in general, and their amount is small. However, they play a very important role in film formation and durability.

3. Pigments used in paint are usually of two types, coloring pigments such as commonly used dioxide titanium and chromium yellow, and extender pigments or common fillers such as calcium carbonate and talc powder.

4. Solvents include hydrocarbons (mineral olein, kerosene, gasoline, benzene, toluene, xylene, etc.) alcohols, ethers, ketones and esters. The main purpose of solvents and water is to disperse the film-forming base material and form viscous liquid. Solvents are conducive to construction and improvement of some properties of films.

By main film-forming substances, paints consist of oil-based paints, fiber paints, synthetic paints and inorganic paints. Depending on the properties of paints or films, paints consist of solution, latex, sol, powder, glossy paints, dull paints, colorful art paints, etc.

Paint is a kind of coating made with pigment and curing agents. Main production steps are as follows:

Pigment preparation: Pigment is an important component of paint. It should be prepared based on the desired color.

Binder preparation: The binder is an important component of paint. It is mainly for binding of pigment and curing agent.

Curing agent preparation: The curing agent is an important component of paint. It is mainly for paint curing.

Mixing: Prepare the paint by mixing the pigment, binder and curing agent according to specific proportions.

Fluidity adjustment: Add solvents or diluents to adjust the paint fluidity if necessary.

Quality inspection: Check the quality of the prepared paint, to ensure that the paint quality meets the requirements.

Packaging: Pack paint into containers for sale or use.

The ingredients and their proportions have a great impact on the performance of paint. It is necessary to strictly control the quality and proportion of ingredients, in order to ensure the paint quality.

I. Material selection

Materials for preparation of paint: pigment, UV thinner, iron oxide, wax, alum, water, petroleum ether, paint thinner, etc.

II. Steps

  1. Fully mix the pigment, UV thinner and iron oxide, so that the pigment has certain durability and gloss.
  2. Add appropriate amount of wax into the pigment, to improve the waterproof performance, anti-corrosion and weather resistance of paint.
  3. Add alum and water to improve the viscosity and color saturation of paint.
  4. Finally add petroleum ether and paint thinner, to make the paint easier to apply and dry.
  5. Fully mix these materials and filter the mixture once.

III. Precautions for use

  1. 1.Take safety protection measures during the preparation of pigment paint. For example, wear gloves, masks, etc.
  2. 2.The paint is suitable for indoor or outdoor use. Keep it away from direct intense light.
  3. 3. Conduct regular maintenance to extend the service life of paint.

We can make high-quality pigment paint at home according to the above steps. The homemade paint is not only economical, but also more secure and reliable to use, with excellent protective effects. However, we must pay attention to safety in the process of paint preparation.

Pigments are classified by color, chemical composition, particle size, etc. Different pigments have different effects on the properties of paint.

First, colors affect the appearance and optical properties of paint. In paint applications, the appearance, durability and stability of colors need to be considered. Colors of most paints in the market depends on pigments. For example, ferrite pigments can is suitable for production of red, brown, black and gray paint. Zinc oxide and titanium dioxide are suitable for production of white paint. In addition, colors affect the film thickness. Large pigment particles are convex, forming a coarse surface. The smaller the particle size, the smoother the film surface, and the higher the surface reflectance.

Secondly, the particle sizes of pigments have different effects on paint. Generally, the smaller the particle size, the better the color dispersion effect, and the higher the film durability. Therefore, an appropriate amount of pigment has positive effects on the film durability, adhesion and transparency. The particle sizes of pigments also affect the covering power. Pigments of larger particle sizes will form a smooth and thick film, thereby improving the covering power. Those of smaller particle sizes will form a finer film.

Furthermore, the chemical composition of pigments is one of the important factors affecting paint. Many pigments have protective properties. For example, titanium dioxide, chromium oxide and red iron slag can improve the resistance of paint to ultraviolet radiation of sunlight. In terms of prevention of metal rusting, basic lead, zinc oxide and other pigments can inhibit corrosion. Other pigments can improve the chemical stability and weather resistance of paint.

Finally, the action mechanism of pigments on paint is worth exploring. Red iron slag can dissipate heat by absorbing light, thus increasing the surface temperature of the film. With chromate as a passivating agent, chromium oxide has a similar principle to zinc yellow. It can prevent rust spots on the surface of paint. Titanium dioxide can enhance the covering power and prevent paint from yellowing. Therefore, the action mechanisms of pigments should be applicable to specific coating applications.

Natural paint pigment is a kind of paint composed of natural plant components. Its main components include vegetable oil, resin, natural pigments, etc. Common vegetable oils include linseed oil, sunflower oil, soybean oil, etc. Common resins include turpentine, clove oil and so on. Natural paint pigments are usually vegetable dyes, such as blueberries, purple beard, tea, cyanine, etc. Because their ingredients are from natural plants, natural paints are environmentally friendly and harmless.

Colour pigment for paint precautions:

1. The most important roles are coloring and decoration.
2. Increase the paint film strength.
3. Reduce the paint shrinkage, and enhance the adhesion, corrosion resistance, light resistance and weather resistance of paint.
4. Improve the viscosity and thixotropy of paint.
5. Make paints have special functions, such as electrical conduction, magnetic conduction, fire prevention, sterilization, temperature indication, stealth and so on.

I. Definition of pigments and colorants for paint
Pigments and colorants can both change the color of an object, but their definitions are different. A pigment is a powder or liquid substance to highlight or change the color, gloss, or transparency of an object. A colorant is a chemical soluble in solvents or water, to change the color of an object by adding or mixing into other materials.

II. Applications of pigments and colorants for paint
Pigments are mainly for drawing, color painting, art production, walls, ceramics, etc., allowing objects to show different colors, textures and glossiness. Colorants are mainly for industrial production, cosmetics, food, beverage, medicine and the like, with the effects of beautifying, dyeing, marking, anti-corrosion, etc.

III. Properties of pigments and colorants for paint
Pigments are insoluble in water, oil and other solutions, and will not change chemical properties of materials. Pigments can also keep the gloss and color brightness for a long time. Colorants are soluble in water or solvents and will react chemically with materials. Pigments and colorants should be used according to different needs of objects.

IV. Differences between pigments and colorants for paint
According to the above definitions, applications and properties, pigments and colorants have great differences. But both can change the colors of objects. In practical applications, suitable products should be used as appropriate.

To sum up, pigments and colorants are different in terms of definitions, applications and properties. Understanding these differences is important for the correct selection and use of pigments and colorants.

1. Organic pigments for paints
Organic pigments are from petrochemical, coal chemical and other chemical raw materials. They have complex molecular structures and bright colors. They are mainly solvent-based and water-based. Solvent-based organic pigments are common colorants. They are usually dissolved in solvents, featuring color concentration, light resistance, heat resistance and the like. Water-based organic pigments are environmentally friendly. They more compliant with environmental protection requirements than solvent-based ones. Organic pigments are widely used in paint, ink, plastic, rubber, textile, etc.

2. Inorganic pigments for paints
Inorganic pigments are mineral raw materials or metal salts. They belong to natural substances. They have excellent light resistance, weather resistance, heat resistance, chemical corrosion resistance, etc. Common inorganic pigments are iron oxide, zinc oxide and titanium dioxide. They are often used in paint, ink, plastics, rubber, etc.

3. Metallic pigments for paints
Metallic pigments are made of metal powder. They have metallic luster, strong reflection and corrosion resistance. They include aluminum foil, copper foil, copper red, aluminum blue and so on. Metallic pigments are widely used in automobile, machinery, construction, home accessories, etc.

4. Special pigments for paints
Special pigments are made of special materials, with special properties and uses. For example, luminous pigments glow in the dark and can decorate luminous watches and pointers. Transparent pigments allow substrates to show some colors and can decorate transparent products such as acrylic and plexiglass. Fluorescent pigments can reflect strong fluorescence in the visible light and are suitable for lighting, decoration, etc.

Different from interior paints, exterior paints are affected by climate and other natural factors. They have higher performance requirements. Preferably, the colors of exterior pigments should be durable and pure, without migration or infiltration. Thus, pigments should be resistant to acid and alkali, sunlight, weather, UV, high temperature, chemical corrosion, etc.

Interior latex paint has a complex composition and have some special requirements for pigments, with water as the dispersing medium. Due to the direct application of latex paint on the surfaces of alkaline objects such as cement and plaster, pigments should have certain alkaline resistance. Exterior latex paint of buildings is subject to wind, sunlight, rain and UV radiation, so pigments should be resistant to fading, yellowing, powdering and UV light.

Extenders in paints are to improve the appearance and performance of paints.
Resins and raw materials determine the performance of paints, and extenders are mainly supplementary. If they are designed in formulas as needed, they will have multiplication effects. The selection and skilled use of extenders is critical to paint design formulas.

According to differences in different production, storage and coating, there are four types of extenders:
(1) Extenders for production, mainly including sand grinding dispersants. They are conducive to sand grinding of pigments in resin slurry, to prevent condensation and change over time.

(2) Extenders for storage, mainly including anti-precipitation agents, to prevent the precipitation of pigments.

(3) Extenders for coating.

Including: defoaming agents: preventing foam traces and eliminate foam.

Anti-sagging agents: preventing paint sagging.

Color separation prevention agents: prevent coloring differences in painting.

Smoothing agents: making surfaces smooth.

Hardening accelerators: accelerating the hardening reaction to ensure the thorough hardening.

Shrinkage prevention agents: preventing shrinkage.

(4) Extenders beneficial to films after painting.

Including UV absorbers: improving the UV resistance.

How to use pearl powder for car paint?

Can you add pearl powder for car paint? Pearlescent powder is suitable for car paint. Pearlescent car paint is a special car paint containing pearlescent particles.

How to use titanium dioxide for paint?

What does titanium dioxide do in paint? 1. Improve the covering power of paint An appropriate amount of titanium dioxide can improve the covering power

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