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  • OEM/ODM China Color Changing Paint Pigments - Photochromic pigment Sun Sensitive Pigment – Topwell

    OEM/ODM China Color Changing Paint Pigments - Photochromic pigment Sun Sensitive Pigment – Topwell

    Photochromic Pigment changes colors when exposed to Sunlight or UV light, and reverts to its original color when sunlight is blocked. After absorbing the energy of sunlight or UV, it’s molecule structure is changed, which caused its absorbed wavelength to be changed allowing a color to appear. It revers to the original molecule structured and color when the light stimuli is dimmed or blocked. Colorless to color (Base Color: White) Purple, Red, Blue, Sky Blue, Green, Yellow, Gray, Deep G...
  • Hot-selling Dyes Pigment - temperature changing color paint thermochromic paint pigments  – Topwell

    Hot-selling Dyes 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...
  • Wholesale Color Changing Pigment - UV Fluorescent Pigments for security – Topwell

    Wholesale Color Changing Pigment - UV Fluorescent Pigments for security – Topwell

    UV fluorescent pigment Also called Anti-counterfeit pigment. It is light color under visible light. When it is under UV light,  it will show beautiful colors.  Active peak wavelength is 254nm and 365nm. Benefits High light fastness options available. Achieve any desired optical effect within the visible spectrum.   Typical Applications Security documents:postage stamps,  credit cards, lottery tickets, security passes, brand protection   Application industry: Anti-counterfeiting in...
  • Fluorescent Pigment Powder - 365nm organic uv fluorescent pigment for security ink – Topwell

    Fluorescent Pigment Powder - 365nm organic uv fluorescent pigment for security ink – Topwell

    uv fluorescent pigment is organic pigment,we have Red,Green,Yellow and Blue ,4 regular colors,And there are many other custom colors! UV fluorescent security pigments Can be directly added to the ink, paint, forming security fluorescent effect, 1. Ink: for a good solvent resistance and no color shift of the printing of the finished product does not pollute. 2. Paint: resistance to optical activity three times stronger than other brands, durable bright fluorescence can be used on adverti...
  • Factory Supply Uv Visible Pigments - Photochromic Dye for Optical Lenses Change Color From Clear to Grey Under Sunlight  – Topwell

    Factory Supply Uv Visible Pigments - 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...
  • Wholesale Night Glow Pigment - photochromic pigment – Topwell

    Wholesale Night Glow Pigment - 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...
  • Orange Red Color Fluorescent Pigment Powder - UV Fluorescent Security Pigments – Topwell

    Orange Red Color Fluorescent Pigment Powder - UV Fluorescent Security Pigments – Topwell

      UV-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.   Features Organic and inorganic  Emission in the visible portion of the spectum following stimulation with either long- or short- wave UV. Complete range of visible emission colours. Gasochromic grades available. A range of particle sizes, lightfastness, body colour and solubilitie...
  • Wholesale Price China Orange Red Color Fluorescent Pigment Powder -  invisible pigment – Topwell

    Wholesale Price China Orange Red Color Fluorescent Pigment Powder - 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...
  • Super Lowest Price Colour Shift Pigment - UV Fluorescent Pigments for security – Topwell

    Super Lowest Price Colour Shift Pigment - UV Fluorescent Pigments for security – Topwell

    UV fluorescent pigment Also called Anti-counterfeit pigment. It is light color under visible light. When it is under UV light,  it will show beautiful colors.  Active peak wavelength is 254nm and 365nm. Benefits High light fastness options available. Achieve any desired optical effect within the visible spectrum.   Typical Applications Security documents:postage stamps,  credit cards, lottery tickets, security passes, brand protection   Application industry: Anti-counterfeiting in...
  • Color Shift Powder - Perylene Orange high fluorescent pigment orange F240 – Topwell

    Color Shift Powder - 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%
  • Good Quality Uv Fluorescent Pigment - UV Fluorescent Pigments for security – Topwell

    Good Quality Uv Fluorescent Pigment - UV Fluorescent Pigments for security – Topwell

    UV fluorescent pigment Also called Anti-counterfeit pigment. It is light color under visible light. When it is under UV light,  it will show beautiful colors.  Active peak wavelength is 254nm and 365nm. Benefits High light fastness options available. Achieve any desired optical effect within the visible spectrum.   Typical Applications Security documents:postage stamps,  credit cards, lottery tickets, security passes, brand protection   Application industry: Anti-counterfeiting in...
  • Chinese Professional Color Changing Nail Polish Pigment - Photochromic pigment Sun Sensitive Pigment – Topwell

    Chinese Professional Color Changing Nail Polish Pigment - Photochromic pigment Sun Sensitive Pigment – Topwell

    Photochromic Pigment changes colors when exposed to Sunlight or UV light, and reverts to its original color when sunlight is blocked. After absorbing the energy of sunlight or UV, it’s molecule structure is changed, which caused its absorbed wavelength to be changed allowing a color to appear. It revers to the original molecule structured and color when the light stimuli is dimmed or blocked. Colorless to color (Base Color: White) Purple, Red, Blue, Sky Blue, Green, Yellow, Gray, Deep G...