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Company Info
Qingdao Langke Co.,Ltd.
Business Type:
Trade Company , Manufacturer
Main Products:
Pigment Intermediates , Acid Dyes , Direct Dyes , Dye Intermediates , Nigrosine Dyes , Pigment
Export Percentage:
81% - 90%
Year Established:
2009
Company News
What role do organic pigments play in powder coatings?
2024 / 02 / 29
Organic pigments play several roles in powder coatings: 1. Color effects: Organic pigments can give powder coatings rich color effects, making them attractive and decorative. Different organic pigments can produce different colors and shades to meet the needs of different customers. 2. Covering power: Organic pigments can provide good covering power so that the powder coating can effectively cover the color and surface defects of the substrate. This is important for applications where it is necessary to hide substrate imperfections or change the color of the substrate. 3. Light Resistance: Organic pigments provide good light resistance so that powder coatings are less likely to fade or discolor under prolonged exposure. This is important for outdoor applications or products that require long term color stability. 4. Chemical resistance: Organic pigments can provide a certain degree of chemical resistance, so that the powder coating can resist the erosion and corrosion of some chemical substances. This is very important for the application of some special environments, such as chemical plants, marine equipment. 5. heat resistance: organic pigments can provide a certain degree of heat resistance, so that the powder coating can maintain color stability and performance at high temperatures. This is very important for products that need to be used in high temperature conditions, such as automobile hoods, baking paint equipment, etc. 6. Weatherability: Organic pigments provide a degree of weatherability that enables powder coatings to maintain color stability and performance in harsh climatic conditions. This is important for outdoor applications or products that require long-term exposure to the natural environment. In short, organic pigments play a variety of roles in powder coatings, such as color effect, hiding power, light resistance, chemical resistance, heat res
Physical Properties and Color of Organic Pigments on Coating Performance
2024 / 01 / 29
The size of organic pigment particles has a great influence on the color performance of coatings. On the one hand, it affects the covering power and coloring power of the paint, within a certain range of pigment particle size, the covering power of the paint increases; when the pigment particles become small, the specific surface increases, and the coloring power of the paint increases. Pigment particle size also has an effect on the color light of the paint, usually the particle size is large, the particle size distribution is wide, the color light is dark; on the contrary, the color light is bright. On the other hand, pigment particle size also affects the UV resistance of paint. When the particle becomes small, the specific surface area increases, the absorbed light energy increases, the degree of destruction also increases, so the paint fades faster. Pigment particle size is small, the gravity is small, the paint is not easy to stratify and precipitate; but the pigment with small particle size has large specific surface area, the surface energy increases so that the chance of flocculation and roughness of the paint increases, which is not conducive to grinding and dispersion. Most organic pigments exist in crystal state, and the phenomenon of "homogeneous heterocrystal" is very common. Copper phthalocyanine crystal, common Q-type red blue (such as pigment blue 15) poor stability, after specific solvent treatment is turned into a stable P-type green blue (such as 15:3); pigment violet 19 (quinolone structure) has α, β and γ 3 kinds of crystal, α-type has no value, β-type for the purple-red, and γ-type for the blue red. In the design of coating formulations, pay attention to the rational use of additives and solvents to prevent different crystal types from transforming under certain conditions, which will cause the coating to undergo chromatic drift and make it difficult to find the right color acco
What is the difference between organic and inorganic pigments?
2024 / 01 / 26
What is the difference between organic and inorganic pigments? The following is to explain for you: 1. pigments have soluble and insoluble, inorganic pigments and organic pigments are different. Inorganic pigments are generally mineral pigments, with inorganic pigments and colored earth and mineral pigments in the rock wall spray paint coating body changes humans have long known. 2, organic pigments are generally taken from plants and marine animals, such as Ancient Rome from the shellfish extracted from the clinoptilolite, garcinia cambogia, purple and so on. Pigment red 166 is pure yellow-red. It is mainly used for coloring plastics and inks. It is not easy to remove in soft PVC. Has medium coloring power. Covering power. Very good light and weather resistance. Heat resistance up to 300°C in HDPE. Also used in polyacrylonitrile . Polystyrene and rubber coloring. Also recommended for high-grade industrial car paints, packaging inks and metal decorative inks. Pigment Red 242 quinuclidinone derivatives of pigment varieties have excellent migration resistance and excellent thermal stability, showing a pure blue-red or magenta color. The concentration of Pigment Yellow 139 does not affect the gloss, has excellent light resistance and weatherability; inorganic pigment to replace chrome yellow. It is suitable for high-grade paints (automobile refinishing paints), with light resistance up to grade 7-8. Pigment Red 185 is mainly used in high-grade automotive coatings (OEM), plastics and synthetic fibers for raw material coloring; in nitrocellulose (NC) solvent ink, excellent coloring power (beyond C.I. Pigment Yellow 17), high gloss. Can be used for coloring plastics, paints, printing inks and coatings. Organic pigments have bright colors and strong coloring power; low density and non-toxic. Organic pigments look looser, whil
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Ms. zhang yuqin
Tel:+86-532-82972905
Fax:
Mobile Phone:+8613678889897
Email:export@langkedyes.com
Address:RM 409,Shandong International Trade Buliding, 51,Taiping Road, Qingdao, Shandong
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.