Core-shell structured anti-counterfeit fiber filament

A technology of anti-counterfeiting fiber, core-shell structure, applied in the direction of fiber type, fiber processing, textile and papermaking, etc., can solve problems such as damage, reduction of anti-counterfeiting effect, deterioration, etc.

Inactive Publication Date: 2011-09-28
龚文忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In the above-mentioned various anti-counterfeiting fiber manufacturing technologies, there are high temperature conditions, which limit the application of more anti-counterfeiting functional materials, especially the development of new material technology is changing with each passing day. Capsules, biological DNA materials, trace elements, etc. will deteriorate or be destroyed under high temperature conditions, reducing the anti-counterfeiting effect

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

example 1

[0033] Take 1 part of methyl methacrylate, 0.5 part of vinyl acetate, 2 parts of aromatic urethane acrylate, mix and add 0.1 part of colorless fluorescent red powder material, 1 part of infrared powder material, stir well and add 0.1 part 184 initiator to prepare the mixed solution of anti-counterfeiting functional materials and monomers, dip-coat the 100D / 24F white polyester filament in the mixed solution and quickly place it under the UV lamp to irradiate the mixed solution on the surface of the filament to form a shell layer to obtain anti-counterfeiting fiber filaments with dual functions of fluorescence and infrared recognition. The anti-counterfeiting fiber filament prepared under normal conditions is white, and it is red fluorescence when irradiated by ultraviolet light (money detector lamp), and emits green visible light when irradiated by infrared lamp.

example 2

[0035]Take 2 parts of hydroxyethyl acrylate, 5 parts of ethylene glycol diacrylate, 0.2 part of pentaerythritol triacrylate, 0.2 part of calcium carbonate with an average particle size of 50nm, 2 parts of red temperature-induced achromatic microcapsule powder, infrared powder After mixing 0.8 parts of the material evenly, add 0.3 parts of 184 initiator for later use. Dip-coat the 75D / 35F white polyester filament in the mixed solution and quickly place it under UV light to cure the mixed solution on the surface of the filament to form a shell. layer to obtain anti-counterfeiting fiber filaments with dual functions of thermochromism and infrared recognition. The anti-counterfeiting fiber filament is red at room temperature, turns white when heated (>50°C), turns red after cooling, and can repeat the color development. It can be identified by general heat sources such as hot water cups, cigarette butts, etc. (first-line anti-counterfeiting, naked eye Identification); when a speci...

example 3

[0037] The calcium carbonate in Example 2 is replaced by 0.1 part of nano-silver-loaded zirconium phosphate, and other components and operations are unchanged, and an anti-counterfeiting fiber filament with triple functions of thermochromism, infrared, and trace element (silver-loaded) identification is obtained. The anti-counterfeiting fiber filament is red at room temperature, turns white when heated (>50°C), turns red after cooling, and can repeat the color development. It can be identified by general heat sources such as hot water cups, cigarette butts, etc. (first-line anti-counterfeiting, naked eye identification); use a special infrared-electroacoustic instrument to make a sound when it is close to the anti-counterfeiting fiber filament (second-line anti-counterfeiting, machine-readable identification); take a certain amount of the anti-counterfeiting fiber filament and use chemical or physical methods to test whether it contains silver or silver The content of the authe...

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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PUM

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Abstract

The invention relates to a core-shell structured anti-counterfeit fiber filament. The cross section of the anti-counterfeit fiber filament is of a core-shell structure. The anti-counterfeit fiber filament comprises a core layer and a shell layer covering the core layer, wherein the core layer comprises high polymer chemical fiber materials; the shell layer comprises anti-counterfeit functional materials and auxiliary materials; the anti-counterfeit functional materials are at least one of thermochromic material, photochromic material, fluorescent material, long after-glow material, infrared material, trace element and magnetic material; and the auxiliary materials in the shell layer are organic high polymer materials. The anti-counterfeit functional materials in the anti-counterfeit fiber filament can be selected as required and are arbitrarily combined to simultaneously realize the multiple or multi-line anti-counterfeit function.

Description

technical field [0001] The invention relates to an anti-counterfeit fiber material, in particular to a core-shell structured anti-counterfeit fiber filament. Background technique [0002] Anti-counterfeiting fibers have been used as anti-counterfeiting materials for a hundred years. The early US dollars used green colored fibers as one of the anti-counterfeiting materials. In recent decades, various colored fibers and fluorescent fibers have been widely used in currency, tickets, certificates, and photos, such as RMB, Hong Kong dollars, Swiss francs, etc. Practice has proved that anti-counterfeiting fibers have strong anti-counterfeiting functions. On the other hand, the anti-counterfeiting fiber filament has the form of a fiber filament, and can be used as an anti-counterfeiting material in ribbon trademarks, embroidery, trademarks, and commodity packaging marks. After the anti-counterfeiting fiber filament is cut into short fibers, it can be used in anti-counterfeiting pa...

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): D06M11/49D06M11/71D06M15/333D06M11/00D06M15/263D06M11/76D06M101/32D06M11/79D06M11/83D06M15/00D06M11/46
Inventor 龚文忠
Owner 龚文忠
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