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

Mie resonance anti-counterfeiting product based on hollow structure blue TiO2 and anti-counterfeiting method of Mie resonance anti-counterfeiting product

A hollow structure and product technology, applied in the direction of nanotechnology, titanium oxide/hydroxide, instruments, etc., can solve the problems that users are not easy to identify, cannot distinguish the authenticity, and the anti-counterfeiting marks are easy to be counterfeited, so as to meet the anti-counterfeiting requirements and easily Resolve and overcome the effect of complex preparation and small scale

Active Publication Date: 2018-04-03
CHANGSHU INSTITUTE OF TECHNOLOGY
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing anti-counterfeiting technology still has the defects that users are not easy to identify, and the anti-counterfeiting marks are easy to be counterfeited.
Once the anti-counterfeiting method is cracked or copied, it can be used to label batches of counterfeit and inferior goods, and cannot really serve the purpose of distinguishing the authenticity from the counterfeit

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
  • Mie resonance anti-counterfeiting product based on hollow structure blue TiO2 and anti-counterfeiting method of Mie resonance anti-counterfeiting product
  • Mie resonance anti-counterfeiting product based on hollow structure blue TiO2 and anti-counterfeiting method of Mie resonance anti-counterfeiting product
  • Mie resonance anti-counterfeiting product based on hollow structure blue TiO2 and anti-counterfeiting method of Mie resonance anti-counterfeiting product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A monodisperse blue TiO with hollow structure 2 The preparation method of material comprises the following steps:

[0035] Step 1, a certain amount of tetraethyl orthosilicate is mixed with absolute ethanol and deionized water and stirred evenly, the volume ratio of ethanol to tetraethyl orthosilicate is 26:1, deionized water and tetraethyl orthosilicate The volume ratio is 5:1;

[0036] Step 2, add a certain amount of concentrated ammonia water (concentration 26-28wt%) to step 1, the volume ratio of concentrated ammonia water to tetraethyl orthosilicate is 0.75:1, and centrifuge, wash and separate after stirring for 4 hours;

[0037] Step 3, the SiO obtained in step 2 2 Dispersed in an appropriate amount of absolute ethanol for subsequent use, the volume ratio of the volume of absolute ethanol to tetraethyl orthosilicate described in step 1 is 23:1;

[0038] Step 4, to the SiO in step 3 2 Add a certain volume of acetonitrile and an appropriate amount of hydroxyprop...

Embodiment 2

[0046]A monodisperse blue TiO with hollow structure 2 The preparation method of material comprises the following steps:

[0047] Step 1, mix and stir a certain amount of tetraethyl orthosilicate with absolute ethanol and deionized water, the volume ratio of ethanol to tetraethyl orthosilicate is 20:1, deionized water and tetraethyl orthosilicate The volume ratio is 4:1;

[0048] Step 2, add a certain amount of concentrated ammonia water (concentration 26-28%) to step 1, the volume ratio of concentrated ammonia water to tetraethyl orthosilicate is 0.77:1, centrifuge and wash and separate after stirring for 4 hours;

[0049] Step 3, the SiO obtained in step 2 2 Dispersed in an appropriate amount of absolute ethanol for subsequent use, the volume ratio of the volume of absolute ethanol to tetraethyl orthosilicate described in step 1 is 23:1;

[0050] Step 4, to the SiO in step 3 2 Add a certain volume of acetonitrile and an appropriate amount of hydroxypropyl cellulose to the...

Embodiment 3

[0058] A monodisperse blue TiO with hollow structure 2 The preparation method of material comprises the following steps:

[0059] Step 1, mix and stir a certain amount of tetraethyl orthosilicate with absolute ethanol and deionized water, the volume ratio of ethanol to tetraethyl orthosilicate is 25:1, deionized water and tetraethyl orthosilicate The volume ratio is 6:1;

[0060] Step 2, add a certain amount of concentrated ammonia water (concentration 26-28%) to step 1, the volume ratio of concentrated ammonia water to tetraethyl orthosilicate is 0.73:1, centrifuge and wash and separate after stirring for 4 hours;

[0061] Step 3, the SiO obtained in step 2 2 Dispersed in an appropriate amount of absolute ethanol for subsequent use, the volume ratio of the volume of absolute ethanol to tetraethyl orthosilicate described in step 1 is 23:1;

[0062] Step 4, to the SiO in step 3 2 Add a certain volume of acetonitrile and an appropriate amount of hydroxypropyl cellulose to th...

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 Mie resonance anti-counterfeiting product based on hollow structure blue TiO2 and an anti-counterfeiting method of the Mie resonance anti-counterfeiting product and is applied to commodity anti-counterfeiting authentication. The anti-counterfeiting product takes a hollow structure TiO2 material as an anti-counterfeiting material, and TiO2 hollow spheres in the anti-counterfeiting material have the shell thickness of 15-25 nm and inner diameter of 170-190 nm. The hollow structure blue TiO2 material is prepared in the following steps: anti-counterfeiting pattern production; material spraying, medium conversion color change and medium restoration color recovery. The Mie resonance anti-counterfeiting product and the anti-counterfeiting method have the advantages thatMie resonance anti-counterfeiting product has unique color change and high response speed, is easy to distinguish by human eyes, cannot be copied easily and has high anti-counterfeiting level.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and the invention relates to a hollow structure blue TiO 2 Mie resonance anti-counterfeiting technology. Background technique [0002] As technology advances, so does the level of imitation. The emergence of a large number of counterfeit and inferior products has violated the legitimate rights and interests of consumers and businesses, and has brought great negative effects to brands. It is generally difficult for ordinary consumers to distinguish the authenticity of products, which seriously affects the experience and use of real products. In response to this situation, many businesses have adopted anti-counterfeiting technology. There are many types of anti-counterfeiting technologies, such as printing anti-counterfeiting technology, digital anti-counterfeiting technology, barcode anti-counterfeiting technology and chemical material anti-counterfeiting technology. The purpose is...

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
IPC IPC(8): C01G23/053B82Y40/00G09F3/02
CPCC01G23/053C01P2004/01C01P2004/04C01P2004/34C01P2004/62G09F3/02
Inventor 姚霞喜胡秀丽王旭红沈志俊李茹张维
Owner CHANGSHU INSTITUTE OF TECHNOLOGY