Photo-induced color luminescent powder

Abstract

The invention relates to a photo-induced color luminescent powder, which consists of an inner core of a rare earth fluorescent compound and a wrapping layer; the photo-induced color luminescent powder is characterized in that the inner core of the rare earth fluorescent compound is a rare earth luminescent powder emitting white light; the wrapping layer is a color film coating agent containing a colorant; and the rare earth luminescent powder emitting the white light and the color film coating agent are mixed according to the weight ratio of between 1 to 0.9 and 1 to 1.2. As the rare earth fluorescent compound is prepared into the rare earth luminescent powder emitting the white light which does not have main guiding action on the photo-induced color luminescent powder and is only used as a light source of the photo-induced color luminescent powder, the rare earth fluorescent compound is prepared into the white light relatively easily; as the wrapping layer adopts an inorganic material to be toned through an organic toner, the operation is simple; even if deviation occurs, the adjustment is relatively convenient; the processing process in the later stage suffers small interference by other factors; and a final product has good reduction.

Description

technical field

[0001] The invention relates to a photochromic luminescent powder. Background technique

[0002] As solid fluorescent materials, rare earth fluorescent compounds have high fluorescence intensity, good monochromaticity and long fluorescence lifetime, and are widely used as markers. Patent documents CN 1231760C and CN1304523C respectively disclose that the surface of rare earth fluorescent compounds is wrapped with a polymer film or Inorganic films are used as active functional luminophores for biomaterial detection. Among active functional luminophores, rare earth fluorescent compounds are all monochromatic emitters.

[0003] CN1091793C patent document discloses aluminate rare earth luminescent material and its preparation method, wraps 80-99% aluminate luminescent matrix in the wrapping layer, and guides the public to use this aluminate rare earth luminescent material for luminescence In coatings, luminescent ceramic glazes, luminescent plastics and lumines...

Examples

Embodiment 1

[0014] Preparation of the inner core of the photochromic luminescent powder:

[0015] Mix the commercially available rare earth aluminate long-lasting blue-green luminescent powder, rare earth aluminate long-lasting red luminescent powder and rare earth aluminate long-lasting yellow-green luminescent powder in a weight ratio of 0.9:1:1 to form a rare earth Aluminate long afterglow white luminescent powder. Used as the core of photochromic luminescent powder

Embodiment 2

[0017] Preparation of Color Coating Agent for Photochromatic Luminescent Powder

[0018] The coating agent is acrylic acid resin, the diluent is absolute ethanol, and the coloring agent is an organic coloring agent.

[0019] Select the colorant according to the luminescent color of the photochromic luminescent powder, dilute the coating agent and the colorant with the diluent respectively, and mix the diluted coating agent and the colorant evenly to form a color coating agent corresponding to the color of the colorant , The content of the coating agent in the color coating agent is 80-90%, the coloring agent is 1-3%, and the balance is diluent.

[0020] If you need to produce photo-red luminescent powder, you can choose toluidine red, golden red C, selenium-resistant red BBN or selenium-resistant brilliant red BBC; if you need to produce photo-induced blue luminescent powder, you can choose phthalocyanine blue BGS; if you need to produce Light-induced green luminescent powder...

Embodiment 3

[0025] The color coating agent wraps the inner core to form a photoluminescent slurry

[0026] Mix 100g of rare earth aluminate long-lasting white luminous powder (obtained by Example 1) with the red coating agent containing 100g of acrylic acid resin (obtained by Example 2), and add a defoamer (dimethyl Silicone oil) 0.9g, brightening agent (stone material brightening agent SC73 produced by Chengdu Silicon Di Technology Co., Ltd.) 15mg, white carbon black (SIO 2 ) 0.25 g, stirred at 1700-2500 rpm for 30 minutes, then added 10 mg of ultraviolet absorber (commercially available) and 15 mg of curing agent (organic ammonia) and mixed thoroughly to form a photoluminescence slurry.

[0027] The pH of the photoluminescent slurry is tested, and the pH is controlled between 8 and 9. If it deviates, adjust it with a pH regulator. In this embodiment, by adding white vinegar to adjust the pH between 8 and 9, a qualified photoluminescent slurry (red light) is obtained.

technical field

[0001] The invention relates to a photochromic luminescent powder. Background technique

[0002] As solid fluorescent materials, rare earth fluorescent compounds have high fluorescence intensity, good monochromaticity and long fluorescence lifetime, and are widely used as markers. Patent documents CN 1231760C and CN1304523C respectively disclose that the surface of rare earth fluorescent compounds is wrapped with a polymer film or Inorganic films are used as active functional luminophores for biomaterial detection. Among active functional luminophores, rare earth fluorescent compounds are all monochromatic emitters.

[0003] CN1091793C patent document discloses aluminate rare earth luminescent material and its preparation method, wraps 80-99% aluminate luminescent matrix in the wrapping layer, and guides the public to use this aluminate rare earth luminescent material for luminescence In coatings, luminescent ceramic glazes, luminescent plastics and lumines...

Examples

Embodiment 1

[0014] Preparation of the inner core of the photochromic luminescent powder:

[0015] Mix the commercially available rare earth aluminate long-lasting blue-green luminescent powder, rare earth aluminate long-lasting red luminescent powder and rare earth aluminate long-lasting yellow-green luminescent powder in a weight ratio of 0.9:1:1 to form a rare earth Aluminate long afterglow white luminescent powder. Used as the core of photochromic luminescent powder

Embodiment 2

[0017] Preparation of Color Coating Agent for Photochromatic Luminescent Powder

[0018] The coating agent is acrylic acid resin, the diluent is absolute ethanol, and the coloring agent is an organic coloring agent.

[0019] Select the colorant according to the luminescent color of the photochromic luminescent powder, dilute the coating agent and the colorant with the diluent respectively, and mix the diluted coating agent and the colorant evenly to form a color coating agent corresponding to the color of the colorant , The content of the coating agent in the color coating agent is 80-90%, the coloring agent is 1-3%, and the balance is diluent.

[0020] If you need to produce photo-red luminescent powder, you can choose toluidine red, golden red C, selenium-resistant red BBN or selenium-resistant brilliant red BBC; if you need to produce photo-induced blue luminescent powder, you can choose phthalocyanine blue BGS; if you need to produce Light-induced green luminescent powder...

Embodiment 3

[0025] The color coating agent wraps the inner core to form a photoluminescent slurry

[0026] Mix 100g of rare earth aluminate long-lasting white luminous powder (obtained by Example 1) with the red coating agent containing 100g of acrylic acid resin (obtained by Example 2), and add a defoamer (dimethyl Silicone oil) 0.9g, brightening agent (stone material brightening agent SC73 produced by Chengdu Silicon Di Technology Co., Ltd.) 15mg, white carbon black (SIO 2 ) 0.25 g, stirred at 1700-2500 rpm for 30 minutes, then added 10 mg of ultraviolet absorber (commercially available) and 15 mg of curing agent (organic ammonia) and mixed thoroughly to form a photoluminescence slurry.

[0027] The pH of the photoluminescent slurry is tested, and the pH is controlled between 8 and 9. If it deviates, adjust it with a pH regulator. In this embodiment, by adding white vinegar to adjust the pH between 8 and 9, a qualified photoluminescent slurry (red light) is obtained.