product

  • Near-Lightning Dyes - Thermochromic pigment for thermochromic Paint Thermochromic Ink Thermochromic Fabric – Topwell

    Near-Lightning Dyes - 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...
  • Photochromic Pigments - Color Change Pigment UV Photochromic Pigment for Textile – Topwell

    Photochromic Pigments - Color Change Pigment UV Photochromic Pigment for Textile – Topwell

    CHARACTERISTIC & RECOMMENDED USAGE AMOUNT Characteristic: Average particle size: 3 microns; 3% moisture content; heat resistance: 225ºC; Good dispersion; good weather fastness.   Recommended usage amount: A. Water-based ink/paint: 3%~30% W/W B. Oil-based ink/ paint: 3%~30% W/W C. Plastic injection/ extrusion: 0.2%~5% W/W Application It can be used for textiles, clothing printing, shoe materials, handicrafts, toys, glass, ceramic, metal, paper, plastic, etc. Tips 1.Substrate selection: PH...
  • 2021 wholesale price Photochromic Pigments - Photochromic Dye for Optical Lenses Change Color From Clear to Grey Under Sunlight  – Topwell

    2021 wholesale price Photochromic 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...
  • Nir Dyes Near-Infrared Visible Dyes - photochromic pigment for color changing paint uv color change powder in sun – Topwell

    Nir Dyes Near-Infrared Visible Dyes - 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...
  • High reputation Colour Changing Pigment - UV Invisible fluorescent pigment – Topwell

    High reputation Colour Changing Pigment - 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...
  • Color Changing Pigment - 365nm organic uv fluorescent pigment for security ink – Topwell

    Color Changing Pigment - 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...
  • Pigment - temperature changing color paint thermochromic paint pigments  – Topwell

    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...
  • PriceList for Fluorescent Pigment Perylene - UV Fluorescent Security Pigments – Topwell

    PriceList for Fluorescent Pigment Perylene - 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...
  • Factory wholesale Cyanine Dye -  color changing powder photochromic pigment for plastic – Topwell

    Factory wholesale Cyanine Dye - color changing powder photochromic pigment for plastic – Topwell

      Product Name:Photochromic Pigment Other Name:Sunlight Sensitive Pigment   Product Information: Photochromic pigment changes its color when it is under sunlight . When under Ultraviolet light or sunlight , it becomes colorful, purple, red, blue, yellow etc .  When UV source is removed, photochromics return to their original color.   Application: ♦Paint: suitable for use surface coating products such as PMMA paint, ABS spray paint, PVC paint and water-based paint. ♦Ink: sui...
  • Color Changing Pigment - UV Invisible fluorescent pigment – Topwell

    Color Changing Pigment - 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...
  • 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...
  • Bottom price Color Shift Pigment Powder - High Fluorescent Red Dye for Greenhouse Film CAS 123174-58-3 – Topwell

    Bottom price Color Shift Pigment Powder - High Fluorescent Red Dye for Greenhouse Film CAS 123174-58-3 – Topwell

    High Fluorescent Red Dye  Other name:Perylene red Cas No.:123174-58-3 Introduction High Fluorescent Red Dye is High Performing Fluorescent dyes for plastics coloring,it have Excellent weatherfastness,, High heat stability, Extremely high chroma! Directions for use High Fluorescent Red Dye usually used for Plastic, solar industry, light conversion film , Agriculture film,  Storage Unlimited if the products are stored in a dry place.