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Printing ink

An ink and oil-based ink technology, applied in the directions of ink, inorganic compound addition, entertainment devices, etc., can solve the problems of weak luminous intensity and short afterglow time, and achieve the effect of high afterglow brightness, long afterglow time and good chemical stability.

Inactive Publication Date: 2018-09-18
王小琴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome a series of problems such as weak luminous intensity and short afterglow time of red long-lasting materials in the prior art, the present invention provides a red long-lasting phosphor and a preparation method thereof. The phosphor has good chemical stability , high afterglow brightness, long afterglow time, etc., can be used in decoration, emergency display and other fields

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0126] A red long-lasting phosphor with a chemical composition of Sr 2.96 SiAlO 5 Cl 3 : 0.02Eu 2+ , 0.02Dy 3+ .

[0127] A kind of preparation method of red long afterglow phosphor, with high-purity SrCO 3 , SiO 2 , AlCl 3 、Eu 2 o 3 and Dy 2 o 3 As a raw material, according to the chemical composition Sr 2.96 SiAlO 5 Cl 3 : 0.02Eu 2+ , 0.02Dy 3+ The ratio of each element in the formula is accurately weighed for each raw material; agate balls are used as grinding balls, absolute ethanol is used as a ball milling medium, agate balls, absolute ethanol and raw materials are put into a ball mill tank at the same time, and ball milled on a planetary ball mill Mix the mixture for 5 hours to form a slurry mixture, the mass ratio of absolute ethanol to raw materials is 2:3; place the obtained slurry mixture in an oven, heat and dry it at 70°C for 8 hours, and then dry The obtained raw materials pass through a 300-mesh sieve to obtain uniformly mixed raw materials; put ...

Embodiment 2

[0129] A red long-lasting phosphor with a chemical composition of Sr 2.98 SiAlO 5 Cl 3 : 0.01Eu 2+ , 0.01Gd 3+ .

[0130] A kind of preparation method of red long afterglow phosphor, with high-purity SrCO 3 , SiO 2 , AlCl 3 、Eu 2 o 3 and Gd 2 o 3 As a raw material, according to the chemical composition Sr 2.98 SiAlO 5 Cl 3 : 0.01Eu 2+ , 0.01Gd 3+ The ratio of each element in the formula is accurately weighed for each raw material; agate balls are used as grinding balls, absolute ethanol is used as a ball milling medium, agate balls, absolute ethanol and raw materials are put into a ball mill tank at the same time, and ball milled on a planetary ball mill Mix for 15 hours to form a slurry mixture, the mass ratio of absolute ethanol to raw materials is 2:3; place the obtained slurry mixture in an oven, heat and dry it at 80°C for 6 hours, and then dry The obtained raw materials pass through a 300-mesh sieve to obtain uniformly mixed raw materials; put the uniform...

Embodiment 3

[0132] A red long-lasting phosphor with a chemical composition of Sr 2.94 SiAlO 5 Cl 3 : 0.03Eu 2+ , 0.03Nd 3+ .

[0133] A kind of preparation method of red long afterglow phosphor, with high-purity SrCO 3 , SiO 2 , AlCl 3 、Eu 2 o 3 and Nd 2 o 3 As a raw material, according to the chemical composition Sr 2.94 SiAlO 5 Cl 3 : 0.03Eu 2+ , 0.03Nd 3+ The ratio of each element in the formula is accurately weighed for each raw material; agate balls are used as grinding balls, absolute ethanol is used as a ball milling medium, agate balls, absolute ethanol and raw materials are put into a ball mill tank at the same time, and ball milled on a planetary ball mill Mix for 10 hours to form a slurry mixture, the mass ratio of absolute ethanol to raw materials is 2:3; place the obtained slurry mixture in an oven, heat and dry it at 75°C for 7 hours, and then dry The obtained raw materials pass through a 300-mesh sieve to obtain uniformly mixed raw materials; put the uniform...

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Abstract

The invention belongs to the field of printing ink. Printing ink is characterized by containing conventional printing ink components and red long afterglow fluorescent powder, wherein the red long afterglow fluorescent powder is uniformly distributed in the conventional printing ink components, and the addition amount of the red long afterglow fluorescent powder is 1%-30%; and the chemical constitution general formula of the red long afterglow fluorescent powder is Sr<3-x-y>SiAlO5Cl3:xEu<2+>,yRe<3+>, wherein Re represents one or combination of Dy, Gd and Nd, and the value ranges of x and y areas follows: x is more than or equal to 0.01 and less than or equal to 0.05, and y is more than or equal to 0.01 and less than or equal to 0.10. An Eu<2+> ion is located in the luminescent center of the fluorescent powder, and a long afterglow effect can be enhanced effectively by introducing rare earth impurity ions such as Dy<3+>, Gd<3+> and Nd<3+>. The printing ink provided by the invention ishigh in afterglow brightness and long in afterglow time and can be applied to the fields of advertising, safety indication and the like.

Description

[0001] This application is a divisional application, the filing date of the original application: 2017-11-02, the original application number: 2017110616047, [0002] Invention title of the original application: a red long-lasting phosphor and its preparation method. technical field [0003] The invention belongs to the field of printing ink. Background technique [0004] Luminescent materials can absorb various forms of energy from the outside world and convert them into light radiation. There are various ways of emitting light. Long afterglow luminescent materials are also called light storage materials, energy storage luminescent materials or luminous materials. They have unique advantages in solar energy conversion and utilization. They can store solar energy during the day and release it slowly at night. They are an important type of light-light Conversion materials and energy-saving materials are academically called long-term phosphorescent phosphors or long-term lumi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/03C09K11/64H01L33/50C09D7/61
CPCA63G1/00C08K3/18C08K3/34C09D7/61C09D11/03C09K11/7792D21H17/68G09F13/20H01L33/502
Inventor 杨道救
Owner 王小琴
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