Using Swiss Clariant pigment A3B, the pigment has undergone solid-phase process (Japanese process), imported from Switzerland by nano grinding machine, 0.1mm yttrium zirconium fine processing and grinding, blue light red (brilliant red) with migration resistance and light fastness

 Key performance indicators

 Temperature resistance: 300 degrees

 Lightfastness: Class 8 (lightfastness)

 Migration resistance: Class 5 (no migration at all)

 Total halogen content: less than 200PPM

Fineness: between 100 nm and 150 nm

 Gloss: 115%

 Light Transmission: 87%

 Optical Standard: (ISO/TC172/SC7)

Complies with ADOBE RGB IPS crystal Pantone X-Rite ΔE<1.51 CF pigments

It is mainly used for automotive OEM, automobile modification paint, high-performance bell brake caliper coating

 Pastel: One of the red organic pigment varieties.

It has the characteristics of bright color and excellent fastness. The hue is blue-red, and it is an organic pigment of the vat dye type.
 It is widely used in the coloring of coatings, inks, plastic synthetic fibers, etc.
 It is very transparent and can be used in metallic glitter paints.
After special processing, the surface treatment can also be used for coloring plastics and polyester spinning.
 Catalog:Anthone organic pigments

 CD:CAS[131-92-0]
 Molecular Formula: C28H16N2O4
 Molecular Weight: 444.44
 Structural formula:
a.JPG
 Properties: This product is a blue red powder, which is an anthraquinone pigment.
It has excellent fastness, excellent heat resistance and migration resistance. The melting point is 350 °C, and the relative density is 1.45~1.53.
 Method:
 1. Production principle
Sodium 1-amino-4-bromoanthraquinone-2 sulfonate (sodium bromide) condenses in the presence of copper powder to form 4,4′-diamino-1,1-dianthraquinone-3,3′-disulfonic acid. Then the sulfonic acid group is removed in dilute sulfuric acid to obtain bianthraquinone red.
 2. Technical formula
 1-Amino-4-bromoanthraquinone-2-sulfonate sodium 64 copper powder 30.4
 3. Production process
 (1) Condensation
4g of sodium 1-amino-4-anthraquinone-2-sulfonate, 1.9g of copper powder and 0.7~1.2g of 50% sulfuric acid were added to the reaction flask, stirred for 1.5h at 90 °C, neutralized with sodium carbonate solution while hot until alkaline, filtered, heated to 80~100 °C, salted out with sodium chloride, filtered at 60~80 °C, washed with 2% sodium chloride solution, and the crude product of the condensation reaction was obtained, 4,4′-diamino-1,1′-dianthraquinone-3,3′-disulfonate. Add 4g of crude product to 100mL of hot water, and add 0.5g of activated carbon at 90~98 °C. Filtration, filtrate with sodium chloride salting out. It was then filtered and washed with 2% sodium chloride solution to obtain a refined brown-red condensation product.
 (2) Desulfonic acid group
3.3g of refined condensation product (4,4′-diamino-1,1′-diananthraquinone-3,3′-sodium disulfonate) was added to the reaction flask, and then 80% aqueous solution prepared by 24g of sulfuric acid was added, and the reaction was stirred at 135~140 °C for 3.5h, and the reaction end point was detected by thin layer chromatography. After the reaction is completed, it is cooled to 60 °C, poured into the ice-water mixture, filtered, washed with a dilute sodium hydroxide solution, washed with water, and dried to obtain a dark red desulfurization product 4,4′-diamino-1,1′-anthraquinone crude pigment.
 (3) Pigmentation treatment
The wet filter cake of the desulfonization product was added with 0.1g of surfactant and 10mL of 5% rosin according to the dry product weight of 2g, stirred at 85~95 °C for 1h, and then acidified to make its pH value 5~6, filtered, washed and dried to obtain the product anthraquinone red.
 Quality Standards:
 Appearance: Blue red powder
 Color: Similar to the standard
 Tinting strength/%: 100±5 of the standard
 Moisture content/%: ≤2
 Fineness (over 80 mesh sieve allowance)/%: ≤5
 Oil absorption/%: 50±5
 Light Rotation Resistance/Grade: 8
 Heat resistance/°C: 160
 Use:
It is used for the coloring of plastics such as polyvinyl chloride, polyethylene, polyurethane, etc., and is also used for the coloring of inks and coatings.