product

  • Infrared Excited Pigment IR980nm

    Infrared Excited Pigment IR980nm

    Infrared Excited Pigment also called Infrared upconversion phosphor or IR pigment powder,is a kind of rare earth luminescent materials that can convert near-infrared light to visible light.It can convert near-infrared light that human eyes cannot recognize into visible light.

  • Near Infrared (NIR) Dyes

    Near Infrared (NIR) Dyes

    Near infrared dyes show light absorption in the near infrared area of 700-2000 nm. Their intense absorption normally originates from a charge transfer of an organic dye or metal complex.

     

  • uv fluorescent invisible pigment

    uv fluorescent invisible pigment

    UV Purple W3A

    The fluorescent pigment is invisible to the normal light, it only glows bright in the light of the blacklight lamps. For maximum effect it is recommended to use UV lamps with a wavelength of 365 nm and transparent paints.

  • invisible security pigment

    invisible security pigment

    UV Red Y2A

    invisible security pigment also called uv fluorescent pigment,Ultraviolet fluorescent Pigment.

    These pigments are neutral in color, with a white to off-white powder appearance. Not noticeable when incorporated into security inks, fibres, papers. When irradiated with 365nm UV light, the pigment emits fluorescent radiation of yellow, green, orange, red, blue and violet colors and so is immediately identifiable.

     

  • UV Fluorescent Pigments for security

    UV Fluorescent Pigments for security

    UV White W3A

    The 365nm Inorganic UV White Fluorescent Pigment is a high-performance functional pigment with exceptional concealment and identification properties. Appearing as an off-white powder under sunlight, it emits distinct fluorescence (e.g., white, blue, or green) when exposed to 365nm UV light, making it invisible to the naked eye but easily detectable with common tools like UV flashlights or currency validators. This pigment is widely recognized for its advanced anti-counterfeiting capabilities, used in currencies, documents, and high-value product authentication.

     

     

  • UV Fluorescent Security Pigments

    UV Fluorescent Security Pigments

    UV Green Y2A

    Topwellchem manufacture a range of organic and inorganic security pigments that are excited by both short and long wave UV light (as well as special dual excitation/emission products). Emissions span the range of visible colours and are generally intense and lightfast.

  • Perylene Orange high fluorescent pigment orange F240

    Perylene Orange high fluorescent pigment orange F240

    Perylene Orange;N,N’-Bis(2,6-diisopropylphenyl)-3,4,9,10-perylenetetracarboxylic Diimide

    This product can be used for bacterial culture, organic synthesis and other research purposes.

    also used for cell solar energy cell pigment.

  • Cas No.82953-57-9 Lumaogen F orange 240

    Cas No.82953-57-9 Lumaogen F orange 240

    High Performing Fluorescent dyes
    Excellent weatherfastness
    High heat stability
    Extremely high chroma

  • Photochromic pigment Sun Sensitive Pigment

    Photochromic pigment Sun Sensitive Pigment

    Photochromic pigments change from one color to another and colorless to color when exposed to sunlight or ultraviolet (UV) light, and reverts to its original color when sunlight is blocked. After absorbing the energy of sunlight or UV light, it’s molecule structure is changed, which caused its absorbed wavelength to be changed allowing a color to appear.

  • Sunlight Sensitive Pigment

    Sunlight Sensitive Pigment

    Photochromic pigments change color when exposed to UV light or sunlight.  Once removed from the UV light or sunlight, the pigment fades back to its normal color after a minute or so.

  • Sun Sensitive Color Changing Photochromic Pigment

    Sun Sensitive Color Changing Photochromic Pigment

    Photochromic pigment is a specialty designed powder to change color when exposed to a UV light source, but reacts best to direct sunlight. White or colorless when not exposed to sunlight.

  • photochromic pigment change color by sunlight

    photochromic pigment change color by sunlight

    Photochromic pigments or colours – change from clear to the target colour when exposed to sunlight or UV light.