Unlock instant, AI-driven research and patent intelligence for your innovation.

Water-based nano anti-counterfeiting ink-jet ink and preparation method thereof

An inkjet ink and nano technology, which is applied in the field of water-based nano anti-counterfeiting inkjet ink and its preparation, can solve the problems of inability to inkjet ultraviolet light absorption rate, excessive particle size of luminescent materials, etc.

Inactive Publication Date: 2021-09-14
武汉极限光科技有限公司
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a preparation method of water-based nano anti-counterfeiting inkjet ink, which solves the technical problems that the particle size of the luminescent material is too large for inkjet and the ultraviolet light absorption rate is poor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Water-based nano anti-counterfeiting ink-jet ink and preparation method thereof
  • Water-based nano anti-counterfeiting ink-jet ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method of water-based nano anti-counterfeiting inkjet ink, comprising the steps of:

[0032] (1) Weigh 10g Na 2 CaGe 2 o 6 :Tb 3+ Add it to 30mL deionized water and ethanol with a volume ratio of 1:1, grind into tiny particles, ultrasonically disperse, dry, and set aside;

[0033] (2) Weigh 10g Na 2 CaGe 2 o 6 :Tb 3+ Granules, 20g sodium vinyl sulfonate, 200g benzoyl peroxide, then added to 500mL deionized water and ethanol volume ratio of 1:1 mixture, magnetically stirred for 10min, washed with deionized water, centrifuged, and then used Ultrasonic dispersion in deionized water, hydrothermal reaction at 120°C for 24 hours; after washing, centrifugation and drying, modified Na 2 CaGe 2 o 6 :Tb 3+ powder;

[0034] (3) Add 5 g of modified Na to 100 mL of deionized water 2 CaGe 2 o 6 :Tb 3+ powder and 20g sodium lauryl sulfate, ultrasonically disperse at 30°C for 20min, then add 30g cyclohexane into the dispersion, and continue ultrasonically ...

Embodiment 2

[0039] A preparation method of water-based nano anti-counterfeiting inkjet ink, comprising the steps of:

[0040] (1) Weigh 10gNa 2 CaGe 2 o 6 :Tb 3+ Add it to 30mL deionized water and ethanol with a volume ratio of 1:1, grind into tiny particles, ultrasonically disperse, dry, and set aside;

[0041] (2) Weigh 10gNa 2 CaGe 2 o 6 :Tb 3+ Granules, 20g sodium vinyl sulfonate, 200g benzoyl peroxide, then added to 500mL deionized water and ethanol volume ratio of 1:1 mixture, magnetically stirred for 10min, washed with deionized water, centrifuged, and then used Ultrasonic dispersion in deionized water, hydrothermal reaction at 100°C for 20 hours; after washing, centrifugation and drying, modified Na 2 CaGe 2 o 6 :Tb 3+ powder;

[0042] (3) Add 5 g of modified Na to 100 mL of deionized water 2 CaGe 2 o 6 :Tb 3+ powder and 20g sodium lauryl sulfate, ultrasonically disperse at 30°C for 20min; then add 25g cyclohexane into the dispersion, ultrasonically disperse for 30...

Embodiment 3

[0047] A preparation method of water-based nano anti-counterfeiting inkjet ink, comprising the steps of:

[0048] (1) Weigh 10gNa 2 CaGe 2 o 6 :Tb 3+ Add it to 30mL deionized water and ethanol with a volume ratio of 1:1, grind into tiny particles, ultrasonically disperse, dry, and set aside;

[0049] (2) Weigh 10gNa 2 CaGe 2 o 6 :Tb 3+ Granules, 20g sodium vinyl sulfonate, 200g benzoyl peroxide, then added to 500mL deionized water and ethanol volume ratio of 1:1 mixture, magnetically stirred for 10min, washed with deionized water, centrifuged, and then used Ultrasonic dispersion in deionized water, hydrothermal reaction at 120°C for 24 hours; after washing, centrifugation and drying, modified Na 2 CaGe 2 o 6 :Tb 3+ powder;

[0050] (3) Add 5 g of modified Na to 100 mL of deionized water 2 CaGe 2 o 6 :Tb 3+ powder and 20g sodium lauryl sulfate, ultrasonically disperse at 30°C for 20min; then add 30g cyclohexane into the dispersion, ultrasonically disperse for 30...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method of water-based nano anti-counterfeiting ink-jet ink, wherein the preparation method comprises the three steps: preparation of modified Na2CaGe2O6:Tb<3+> powder, preparation and modification of porous nano SiO2 loaded Na2CaGe2O6:Tb<3+> powder, and preparation of the water-based nano anti-counterfeiting ink-jet ink. The introduced nano SiO2 has the characteristics of high specific surface area, rich pore structure, and good dispersion performance and adsorption performance; the absorption and scattering of ultraviolet light are facilitated and attachment points can be provided for a dynamic photoluminescence material, so the dynamic photoluminescence material can be uniformly dispersed on the surface of the SiO2; the surface of the nano SiO2 is subjected to organic functional group modification so as to enhance the affinity of the whole ink system, and in addition, the nano SiO2 has good light transmission and does not affect the excitation of luminescent materials; and the nano SiO2 is easy to disperse and rich in pore structure, and when the nano SiO2 is applied to the acrylic resin-based water-based ink, the light absorption and scattering of the water-based ink are remarkably improved, and the anti-counterfeiting effect is enhanced.

Description

technical field [0001] The invention relates to the technical field of ink preparation, in particular to a water-based nano anti-counterfeiting inkjet ink and a preparation method thereof. Background technique [0002] When continuously excited by 254nm ultraviolet light, the dynamic photoluminescent material Na 2 CaGe 2 o 6 :Tb 3+ The photoluminescent color can realize dynamic color change from red to yellow and finally to green. This dynamic photochromic material has broad application prospects in the fields of anti-counterfeiting and information encryption. The prepared luminescent material Na 2 CaGe 2 o 6 :Tb 3+ Combining with PDMS, PDMS and Na 2 CaGe 2 o 6 :Tb 3+ The mixture of different anti-counterfeiting patterns is printed, and different regions of the pattern are respectively used with different doping concentrations of Na 2 CaGe 2 o 6 :Tb 3+ When printed with luminescent materials, under the continuous irradiation of 254nm ultraviolet lamp, the disc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/50C09D11/30
CPCC09D11/50C09D11/30
Inventor 李娇任嵬李鹏龙杰
Owner 武汉极限光科技有限公司