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Anti-fake fiber and preparation method thereof

An anti-counterfeiting fiber, fiber-forming polymer technology, applied in the chemical characteristics of fibers, rayon manufacturing, textiles and paper making, etc., can solve the problems of insufficient anti-counterfeiting strength, single light color, etc. Rich colors and simple craftsmanship

Inactive Publication Date: 2019-05-24
CHANGSHU INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is not limited to the patent documents listed above. Although each has specific technical effects, there are disadvantages that the light color is single and not enough to reflect the ideal anti-counterfeiting strength. The technical solutions to be introduced below are generated under this background.

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
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A) Prepare rare earth two-color luminescent material, first press Sr 2-x-y MgSi 2 0 7 :xEu 2+ ,yDy 3+ Stoichiometric SrCO 3 、Si 2 , 4MgCO 3 ·Mg(OH) 2 ·6H 2 O, Eu 2 o 3 and Dy 2 o 3 , to obtain rare earth blue luminescent materials, where x is 0.01-0.025, y is 0.01-0.025, and according to Sr 1-x-y Al 2 o 4 :xEu 2+ ,yDy 3+ Stoichiometric SrCO 3 、Al 2 o 3 、Eu 2 o 3 and Dy 2 o 3 , to obtain the rare earth green luminescent material, i.e. rare earth strontium aluminate, in the formula, x is 0.01-0.025, y is 0.01-0.025, and then add H which accounts for 5% of the weight of the rare earth green luminescent material to the aforementioned rare earth green luminescent material 3 BO 3 (AR), and then mix the rare earth blue luminescent material with the rare earth green luminescent material that accounts for 5% of the weight of the rare earth green luminescent material in a weight ratio of 1:1, and then add anhydrous luminescent material with a mass volume c...

Embodiment 2

[0025] A) Prepare rare earth two-color luminescent material, first press Sr 2-x-y MgSi 2 0 7 :xEu 2+ ,yDy 3+ Stoichiometric SrCO 3 、Si 2 , 4MgCO 3 ·Mg(OH) 2 ·6H 2 O, Eu 2 o 3 and Dy 2 o 3 , to obtain rare earth blue luminescent materials, where x is 0.01-0.025, y is 0.01-0.025, and according to Sr 1-x-y al 2 o 4 :xEu 2+ ,yDy 3+ Stoichiometric SrCO 3 、Al 2 o 3 、Eu 2 o 3 and Dy 2 o 3 , to obtain the rare earth green luminescent material, that is, rare earth strontium aluminate. In the formula, x is 0.01-0.025, y is 0.01-0.025, and then adding 5% of the weight of the rare earth green luminescent material to the rare earth green luminescent material. 3 BO 3 (AR), and then mix the rare earth blue luminescent material with the rare earth green luminescent material that accounts for 5% of the weight of the rare earth green luminescent material in a weight ratio of 1:2.5, and then add anhydrous Ethanol (AR), ultrasonically dispersed evenly, then dried at 85°C ...

Embodiment 3

[0028] A) Prepare rare earth two-color luminescent material, first press Sr 2-x-y MgSi 2 0 7 :xEu 2+ ,yDy 3+ Stoichiometric SrCO 3 、Si 2 , 4MgCO 3 ·Mg(OH) 2 ·6H 2 O, Eu 2 o 3 and Dy 2 o 3 , to obtain rare earth blue luminescent materials, where x is 0.01-0.025, y is 0.01-0.025, and according to Sr 1-x-y al 2 o 4 :xEu 2+ ,yDy 3+ Stoichiometric SrCO 3 、Al 2 o 3 、Eu 2 o 3 and Dy 2 o 3 , to obtain the rare earth green luminescent material, that is, the rare earth strontium aluminate. In the formula, x is 0.01-0.025, and y is 0.01-0.025, and then adding 5% of the rare earth green luminescent material to the aforementioned rare earth green luminescent material. 3 BO 3 (AR), and then mix the rare earth blue luminescent material with the rare earth green luminescent material that accounts for 5% of the weight of the rare earth green luminescent material in a weight ratio of 1:5, and then add anhydrous luminescent material with a mass volume concentration of 20g...

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PUM

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Abstract

The invention discloses an anti-fake fiber and a preparation method thereof. The preparation method comprises the following steps: preparing a rare earth double-color luminescent material; enabling the rare earth double-color luminescent material to be mixed with a rare earth green luminescent material, after that, adding absolute ethyl alcohol, ultrasonic-dispersing uniformly, drying and grinding, loading in a crucible, after calcining, cooling to a room temperature, grinding again and sieving, to obtain the rare earth double-color luminescent material; weighing a fiber forming polymer and afunctional assistant, and firstly drying the fiber forming polymer through a vacuum drying oven, to obtain the dried fiber forming polymer, enabling the fiber forming polymer to be dissolved in the functional assistant, to obtain spinning dope, and adding the obtained rare earth double-color luminescent material to the spinning dope and uniformly mixing, to obtain spinning mixed solution, in a room temperature condition, spinning in a uniform speed through a wet spinning method by using an injector with a pressurizing device and controlling a pushing speed of the injector, coagulating througha coagulating bath, and drying, to obtain the anti-fake fiber. The anti-fake fiber is capable of expressing the lasting reliable anti-fake effect, and meeting industrialized amplify production requirements, simple in process.

Description

technical field [0001] The invention belongs to the technical field of special functional fibers and their preparation, and in particular relates to an anti-counterfeiting fiber, and also relates to a preparation method of the anti-counterfeiting fiber. Background technique [0002] Common anti-counterfeiting fibers include thermosensitive color-changing fibers, photosensitive color-changing fibers and fluorescent anti-counterfeiting fibers. Thermosensitive color-changing fiber is a fiber whose color changes with temperature; photosensitive color-changing fiber refers to a fiber that undergoes reversible changes under the irradiation of sunlight and ultraviolet light; fluorescent anti-counterfeiting fiber is also called visible fluorescent anti-counterfeiting fiber. If there is color, the authenticity is identified by detecting whether it emits fluorescence. [0003] The above three anti-counterfeiting fibers are relatively poor in durability and reliability of the anti-cou...

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
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/54D01F1/10
Inventor 张技术张英姿王薇吴建兵
Owner CHANGSHU INSTITUTE OF TECHNOLOGY