Photochromic dyes | Spirooxazine Photosensitive dyes Ranbar Red DP1610

Product Introduction:

Name: Photochromic dyes

Brand: Ranbar

Model: DP1610

Color change form: colorless to bright red

Features: high transparency after dissolution, high photosensitivity, bright color

Uses: plastic injection molding, extrusion, paint, printing ink

Product parameters:

Temperature resistance: 220℃

Melting point: 165°C~167°C

Flash point [°C]: >200°C

DSC: 290°C

UV absorbance: 317nm

Moisture content (%): <1%

Appearance and physical state: white crystalline powder

Solubility:

Soluble: Toluene, DCM, AC, MEK, EA, DMF, MeOH, THF

Slightly soluble: Ethanol, IPA (dimethylmethanol, 2-propanol)

Insoluble matter: Water

Product Description:
Ranbar Red DP1610 is a colorless to bright red photochromic dye based on spirooxazine. The appearance is white crystal powder. It is an organic dye that is soluble in various organic solvents such as Toluene, DCM, AC, MEK, EA, DMF, MeOH and THF. Spirooxazine Photosensitive dyes have excellent light fatigue resistance.

Discoloration principle:
When a photochromic dye is exposed to sunlight or ultraviolet (UV) light, the dye is excited and the molecular structure changes so that the color appears, and when the sunlight/UV light is removed, the dye returns to its colorless form. It should be noted that photochromic dye molecules do not have color-changing reactivity in their crystalline state, and need to be dissolved in a solvent or polymer to play a color-changing effect.

Applications:
Ranbar Red DP1610 Photosensitive dyes can be applied in many industries, such as ink, paint, plastic, etc. It is very simple and convenient to use, just add it to the base material and mix it well, the lower the proportion mixed into the medium, the more transparent it will appear in a colorless state or in a thin layer, it should be noted that mixing will generate heat, which may temporarily change the color of the mixture.

Applications in inks and coatings:

●The recommended dosage is 0.02%~0.1% (w/w);

●The suitable pH value of the matrix selected for Ranbar photochromic dye is 7-9;

●Suitable for screen, gravure, and flexographic printing inks;

●It is recommended that the printing background be white or light-colored series;

●Can be used with other pigments and organic dyes;

●When using DP1610 photochromic dye on different substrates, please choose the appropriate resin or substrate.

Applications in injection molding and extrusion:

●The recommended dosage is 0.01%～0.1%w/w;

●Can be used with other pigments and organic dyes;

●Avoid using Photosensitive dyes at temperatures above 250°C;

●When adding appropriate light stabilizers and antioxidants, it has higher heat resistance and UV resistance;

●Suitable for PP, PE, PVC, PU, PS, ABS, TPR, EVA, nylon, PMMA and other plastics.

Storage and Handling:
Ranbar Photosensitive dyes should be kept dry at room temperature and not exposed to sunlight.

model	Color - colorless to colored	hue	solvent	Temperature ℃	features	Application field
DP1220	Fuchsia	Blue Red	Toluene, EA, AC, MeOH, THF	220	High transparency	Coatings, plastics, ink
DP1380	Fuchsia	Yellow Red	Toluene, EA, AC, MeOH, THF	220	High transparency	Coatings, plastics, ink
DP1610	Bright Red	Yellow Red	Toluene, EA, AC, MeOH, THF	220	High transparency	Coatings, plastics, ink
DP2070	Orange	Red Orange	Toluene, EA, AC, MeOH, THF	220	High transparency	Coatings, plastics, ink
DP2050	Orange	Yellow Orange	Toluene, EA, AC, MeOH, THF	220	High transparency	Coatings, plastics, ink
DP3080	Yellow	Red Yellow	Toluene, EA, AC, MeOH, THF	220	High transparency	Coatings, plastics, ink
DP4010	Green	Green	Toluene, EA, AC, MeOH, THF	220	High transparency	Coatings, plastics, ink
DP4013	Green	Dark Green	Toluene, EA, AC, MeOH, THF	220	High transparency	Coatings, plastics, ink
DP5060	Blue	Royal Blue	Toluene, EA, AC, MeOH, THF	220	High transparency	Coatings, plastics, ink
DP6008	Purple	Red Purple	Toluene, EA, AC, MeOH, THF	220	High transparency	Coatings, plastics, ink
DP6010	Violet	Violet	Toluene, EA, AC, MeOH, THF	220	High transparency	Coatings, plastics, ink
DP6014	Violet	Dark Violet	Toluene, EA, AC, MeOH, THF	220	High transparency	Coatings, plastics, ink
DP7030	Brown	Red Brown	Toluene, EA, AC, MeOH, THF	220	High transparency	Coatings, plastics, ink
DP0080	Grey	Red light Black	Toluene, EA, AC, MeOH, THF	220	High transparency	Coatings, plastics, ink