Pigment Application
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Email:manager@yuhongchem.com
Address: No.6, Orchard Road, Tianqu Industrial Park, Dezhou, Shandong Province
Permanent Violet 23 (C.I. Pigment Violet 23)
- Commodity name： Permanent Violet 23 (C.I. Pigment Violet 23)
Classification:
Purple pigment
Plastic pigment
- Product Description
-
Product Introduction
Pigment Violet 23 (C.I. Pigment Violet 23)
Common Name: Carbazole Violet; Dioxazine Violet, Permanent Violet 23
CAS Registration Number (CAS RN): 215247-95-3
C.I. Structure Number: 51319
Chemical Category: Dioxazine Class
Molecular Formula: C34H22Cl2N4O2
Product Characteristics
● The parent compound of this type of pigment is triphenyl dioxazine, which is orange in color and has no value as a pigment. Its 9,10-dichloro derivative can be used as a purple pigment after pigmenting.
● There are currently few varieties of dioxazine pigments, with the most typical being Permanent Violet RL (C.I. Pigment Violet 23). This pigment is resistant to almost all organic solvents, making it usable in many application media with excellent fastness.
● The basic hue of this pigment is red-violet, and through special pigmenting treatment, a bluer variety can also be obtained. Its coloring power is particularly high in almost all application media, requiring only a small amount to achieve a satisfactory color depth.
Appearance: Deep purple powder Oil Absorption: 38-53 Volatile Matter % ≤ 1 at 105°C pH Value of Permanent Violet Teaching Material: 7.5 Water Soluble Matter %: 3 Light Fastness: 6-8 Heat Resistance: 200°C Water Resistance: 5 Oil Resistance: 5 Acid Resistance: 5 Alkali Resistance: 5 Solvent Resistance (Xylene): 5 Product Applications
Permanent Violet 23 is widely used in coatings, inks, plastics, and fabric dyeing.
● When coloring coatings, it has good fastness to topcoats and can be used in air-drying paints, automotive coatings OEM, and baking paints, especially for making CuPc colorants to achieve strong light red shades in latex paints.
● Used for coloring plastics, it is heat resistant up to 280°C in polyolefins, with high coloring power (only 0.07% pigment concentration is needed to achieve 1/3 SD of HDPE); also used for masterbatch coloring of polyester and PE (can withstand 240-280°C/5-6h during resin condensation).
● Good light and weather fastness make it suitable for coating printing and printing inks.
Key words:
Yuhong Pigment
Thanks to Yuhong customers for their trust and support over the years
FAQ
In which industries are Yuhong pigment products applied?
The product is widely used in industries such as plastics, rubber, inks, paints and coatings, papermaking, education and culture, printing, and printing paste.
How to test the coloring power of pigments
Pigment coloring strength, also known as actual strength, refers to the ability of a pigment to impart color. High coloring strength pigments can reduce the amount used during application, thereby increasing economic value, which is a significant consideration for users. For example, the coloring strength of Benzidine Yellow is very high, exceeding that of Chrome Yellow by 9 times, while Chrome Yellow is 3-4 times higher than Titanium Yellow. For instance, if the coloring strength of Lightfast Yellow G is set at 100, Lightfast Yellow 10G is only 48. The determination of pigment coloring strength is generally conducted between standard samples of the same variety. The coloring strength of the standard sample is set at 100%, and according to product standards, the test sample should not be lower than 95%. The determination method is similar to color comparison, where colored pigments are diluted with white pigments such as Zinc Barium White or Titanium White, and Zinc Oxide, followed by a comparison of coloring strength with the standard sample. When the coloring strength of the test sample is greater than or less than that of the standard sample, the amount of the standard sample can be adjusted to calculate the coloring strength percentage of the test sample. One method for intermediate control of determining coloring strength is to accurately weigh the test sample and standard sample, manually grind them with white ink containing 75% Zinc Oxide or 60% Rutile Titanium White, and calculate the coloring strength based on the amount of white ink consumed. This method is time-saving and labor-saving, and the results are quite accurate, but it is a non-standard determination method. A newer method for determining the relative coloring strength of pigments and the relative scattering strength of white pigments is to measure the absorption index of the prepared test sample and the standard sample using a spectrophotometer. The ratio of the two is expressed as a percentage, which represents the relative coloring strength. Similarly, after adding black pigment paste to white pigments, the scattering index of the test sample and the standard sample can be measured with instruments, and the ratio is expressed as a percentage, representing the relative scattering strength. The principles and determination methods can refer to the GB/T 13451.2-92 standard.
Shandong Yuhong produces organic pigments: Benzidine Yellow G, Permanent Yellow 2GS, Brilliant Red BK, Gold Red C, Permanent Orange F2G, Permanent Orange Yellow G, Lightfast Red, Lissol Red, and various shades of red, yellow, and orange pigments, which are applied in offset inks, solvent inks, water-based inks, printing pastes, plastics, paints, and other systems.
What are the types of organic pigments?
Classification and development overview of organic pigments, organic pigments have a wide variety of chromatographic types and different classification methods.
(1) Classified by their chromatographic colors: yellow-orange pigments, red (with yellow, green) pigments, purple, brown pigments, and green pigments.
(2) Classified by their application fields: pigments for coatings, pigments for inks, pigments for plastics (rubber), and pigments for cosmetics, which can be divided into four major categories.
(3) Classified by their chemical structure types, they can be divided into three major categories: azo, phthalocyanine, and heterocyclic.
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Pigment Application
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Fax:0086-534-2323974
E-mail:manager@yuhongchem.com
Address: No.6, Orchard Road, Tianqu Industrial Park, Dezhou, Shandong Province
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