-
High Quality Sunlight Sensitive Coating Dye For Photochromic Lenses - Photochromic Dye for Optical Lenses Change Color From Clear to Grey Under Sunlight – Topwell
Photochromic Dyes are reversible raw dyes in crystalline powder form. Photochromic dyes reversibly change color upon exposure to ultraviolet light in the range of 300 to 360 nanometers. Full color change occurs in just seconds when using a flash gun to 20-60 seconds in the sunlight. The dyes change back to colorless when removed from the UV light source. Some colors may take longer to fade back to completely clear than others. Photochromic dyes are compatible with one another and can be m... -
Chameleon Paint Pigment Powder - photochromic pigment – Topwell
Applications： The product can be used in a variety of applications, including coatings, printing, and plastic injection molding. Due to the flexibility of photochromic powder, it can be applied to a range of substrates, such as ceramics, glass, wood, paper, board, metal, plastic and fabric. These color changing powders can be used for silk screen printing, gravure printing and flexo printing. They can also be used for plastic injection conforming to PU, PE, PVC, PS and PP. If the temperature... -
Photochromic Pigments - photochromic pigment for color changing paint uv color change powder in sun – Topwell
Photochromic Pigments. These pigments normally have a pale, off-white appearance but in sunlight or UV light they change to a bright, vivid colour. The pigments revert to their pale colour when away from sunlight or UV light. Photochromic pigment can be used in paint, ink, plastic industry. Most of the design of the product is indoor (no sunshine environment) colorless or light color and outdoor (sunlight environment) have bright-colored. Spcification: Photochromic pigm... -
Good quality Sun Light Sensitive Pigment - Perylene Orange high fluorescent pigment orange F240 – Topwell
Product Name：Perylene Orange Other Name：Lumogen F orange 240 N,N’-Bis(2,6-diisopropylphenyl)-3,4,9,10-perylenetetracarboxylic Diimide Classification：Functional Dyes Application：performance chemical for coating，plastics and specialties [Appearance] orange powder [Heat resistance] 300°C [λ(max)] 525 ±2 nm (in ethylenedichloride) [Purity] ≥98% -
Brilliant Fluorescent Pigments - invisible pigment – Topwell
Invisible pigment also called uv invisible pigment，UV fluorescent powder. It is colorless, while under UV light, it will show colors. The active wavelength is 200nm-400nm. Active peak wavelength is 254nm and 365nm. We have two types，Organic and Inorganic. Inorganic UV Invisible pigment Powder 365nm Available Colors 1: red 2: yellow 3: green 4: blue 5: white 6:pink Organic UV Invisible pigment Powder 365 nm Available Colors 1: red 2: yellow 3: green 4: blue Appl... -
Wholesale Nir Absorption Dyes - thermochromic pigment for heat sensitive car paint heat activated color changing pigment – Topwell
Product Name：thermochromic pigment Other name：heat activated pigment，color change by temperature pigment Thermochromic pigment can be used for all types of surfaces and mediums such as paint, clay, plastics, inks, ceramics, fabric, paper, synthetic film, glass, cosmetic color, nail polish, lipstick, etc.Application for offset ink, security offset ink, Screen printing application, marketing, decoration, advertising purposes, plastic toys and smart textiles or whatever your imaginatio... -
Factory wholesale Glow In Dark Pigment - Photochromic Dye for Optical Lenses Change Color From Clear to Grey Under Sunlight – Topwell
Photochromic Dyes are reversible raw dyes in crystalline powder form. Photochromic dyes reversibly change color upon exposure to ultraviolet light in the range of 300 to 360 nanometers. Full color change occurs in just seconds when using a flash gun to 20-60 seconds in the sunlight. The dyes change back to colorless when removed from the UV light source. Some colors may take longer to fade back to completely clear than others. Photochromic dyes are compatible with one another and can be m... -
Colour Changing Pigment Powder - UV Invisible fluorescent pigment – Topwell
UV Invisible fluorescent pigment Product Name：UV Invisible fluorescent pigment other name：uv fluorescent pigment UV Invisible fluorescent pigment also called Anti-counterfeit pigment. it is colorless, while under UV light, it will show colors. The active wavelength is 200nm-400nm.Active peak wavelength is 254nm and 365nm. we have two types，organic and inorganic！ Available Colors: yellow，green，red and blue Usage： Can be directly added to the ink, paint, forming security fluoresce... -
Black Thermochromic Paint - Thermochromic pigment for thermochromic Paint Thermochromic Ink Thermochromic Fabric – Topwell
Introduction Themochromic pigments are composed of micro-capsules that change color reversibly. When the temperature is raised to a specified temperature the pigment goes from colored to colorless (or from one color to another color). The color returns to original color as the pigment is cooled down. Processing temperature The processing temperature should be controlled below 200 ℃, the maximum should not exceed 230 ℃, heating time and minimize material. (High temperature, prolonged heating... -
Professional China Fluorescent Pigment - Perylene Red 620 – Topwell
Perylene Red 620 product name：high fluorescent pigment other name：Red F 300 CAS No.： 123174-58-3/ 112100-07-9 The perylene group is a kind of thick cyclic aromatic compound containing dinaphthalene inlaid benzene，These compounds have excellent dyeing properties, light fastness, climate fastness and high chemical inertia, and are widely used in automotive decoration and coating industry！ Perylene red 620 was highly absorbable in both ultraviolet and visible light regions, especiall... -
2021 wholesale price Black Thermochromic Pigment - temperature changing color paint thermochromic paint pigments – Topwell
Product Name：thermochromic pigments Other Name：temperature sensitive pigment，pigment color change by temperature Application in Ink & Paint 1. Can disperse in ink and paint, avoid to dilute with polar solvent as alcohol, acetone. The alkene solvent as toluene, xylene is suitable. 2. Can apply in both oil and water type resin. 3. Proper PH value of selected substrate for it is 7-9. 4. Suggested usage is 5%~30% (w/w). 5. Suitable for screen, gravure, and flex graphic printing ink... -
Color Change Powder Thermochromic Pigment - reversible temperature-sensitive color pigments – Topwell
The principle and structure of the reversible color temperature color pigments: Reversible temperature-sensitive color pigment type organic compound by the electron transfer system prepared. Electron transfer-type organic compound is an organic chromophore system has a special chemical structure. At a specific temperature by electron transfer of the organic molecular structure is changed, in order to achieve color change. This discoloration substance not only colorful, but also from a “...
