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Anti-counterfeiting bamboo pulp fiber, preparation method and anti-counterfeiting method

A bamboo pulp fiber and bamboo pulp technology are applied in the field of anti-counterfeiting fibers, which can solve the problems such as the use of amino acid metal chelate anti-counterfeiting materials that are not disclosed in the technology, and achieve effective encryption and traceability, good market application prospects, and anti-counterfeiting. high power effect

Active Publication Date: 2021-03-23
NANTONG TEXTILE & SILK IND TECH RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no technical disclosure of the use of amino acid metal chelates in the preparation of anti-counterfeiting materials.

Method used

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  • Anti-counterfeiting bamboo pulp fiber, preparation method and anti-counterfeiting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The present embodiment provides a kind of preparation method of anti-counterfeit bamboo pulp fiber, and concrete steps are as follows:

[0052] (1) Grind the raw bamboo pulp through a pulverizer, add NaOH solution for two impregnations, the impregnation bath ratio is 1:20, wherein, the first impregnation uses NaOH aqueous solution, its concentration is 230g / L, and the alkali temperature is 45°C, and the second impregnation The impregnation uses NaOH aqueous solution, its concentration is 195 / L, and the alkali temperature is 55°C. When soaking in the alkali solution, Berol Visco388 produced by Akzo Nobel Company is also added in the alkali solution, and the addition amount is 0.1% of the weight of methylcellulose in the bamboo pulp. Then prepare cellulose xanthate through alkalization and sulfonation, then add ionic liquid 1-ethyl-3-methylimidazolium acetate ([EMIM]Ac), go through two dissolving and two filtering processes, and then ripen Preparation of spun viscose. S...

Embodiment 2

[0057] This example provides a kind of preparation method of anti-counterfeit bamboo pulp fiber, and concrete steps are as follows:

[0058] (1) Same as step (1) of Example 1.

[0059] (2) After filtering before spinning, add anti-counterfeiting tracer metal amino acid chelate manganese egg amino acid and copper glycyl amino acid and stearyl alcohol polyoxyethylene ether dispersant, the mass fraction of the dispersant is 5% of bamboo pulp, egg amino acid The mass ratio of manganese and glycine amino acid copper is 1:3, and the total mass of the two metal amino acid chelates is 1‰ of the mass fraction of bamboo pulp. Ultrasonic vibration, stirring evenly to obtain spinning solution.

[0060] (3) is the same as step (3) of embodiment 1.

[0061] The bamboo pulp fiber fineness that makes is 6.0dtex, intensity: 3.48CN / dtex; Detect metal manganese content and be 0.00022g, metal copper content is 0.00074g, metal manganese and metal copper mass ratio are about 1:3, detect Methioni...

Embodiment 3

[0063] This example provides a kind of preparation method of anti-counterfeit bamboo pulp fiber, and concrete steps are as follows;

[0064] (1) Same as step (1) of Example 1.

[0065] (2) After filtering before spinning, add anti-counterfeiting tracer metal amino acid chelate egg amino acid manganese, glycyl amino acid copper, aspartic amino acid iron and stearyl alcohol polyoxyethylene ether dispersant, the mass fraction of the dispersant is 1% of bamboo pulp 5%, the mass ratio of manganese methanoate, copper glycine and iron aspartate is 1:3:6, and the total mass of the three metal amino acid chelates is 1‰ of the mass fraction of bamboo pulp. Ultrasonic vibration, stirring evenly to obtain spinning solution.

[0066] (3) is the same as step (3) of embodiment 1.

[0067] The bamboo pulp fiber fineness that makes is 6.0dtex, intensity: 3.50CN / dtex; Detect metal manganese content and be 0.00009g, metal copper content be 0.00028g, metal iron content be 0.00056g, metal calciu...

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Abstract

The invention relates to a preparation method of anti-counterfeiting bamboo pulp fibers. The preparation method comprises the following steps that crushed bamboo pulp is dipped in an alkaline solution, alkalization treatment and sulfonation treatment are carried out, the crushed bamboo pulp is mixed with ionic liquid, is dissolved in the alkaline solution and filtered, and ripening is carried outto obtain spinning viscose; the spinning viscose is uniformly mixed with at least one amino acid metal chelate and a dispersing agent to obtain a spinning solution; then the spinning solution is spunand immersed into an acid bath for solidification forming, and drafting, cutting, washing, desulfurization, bleaching, oiling, dehydration and drying are carried out to obtain the anti-counterfeitingbamboo pulp fiber; and the total amount of the amino acid metal chelate accounts for 0.01-0.1% of the mass fraction of the bamboo pulp. According to the anti-counterfeiting bamboo pulp fiber, the amino acid metal chelate is used as an anti-counterfeiting tracer agent, anti-counterfeiting encryption treatment is carried out on the bamboo pulp fiber, and anti-counterfeiting identification is carriedout by detecting and encoding metal elements and amino acid types.

Description

technical field [0001] The invention relates to an anti-counterfeit fiber, in particular to an anti-counterfeit bamboo pulp fiber, a preparation method and an anti-counterfeit method. Background technique [0002] At present, the anti-counterfeiting fibers are mainly chemical fibers, and most of them are marked by the color of the fibers, and the source cannot be traced. For example, the Chinese invention CN1763311A discloses a composite anti-counterfeiting fiber, which includes two layers inside and outside, the inner layer is an amorphous alloy fiber, the outer layer is a luminescent material layer, and the outer layer is dyed, adhered, and coated on the inner layer. alloy fiber. The anti-counterfeiting fiber not only has the electromagnetic properties of the amorphous alloy fiber, but also has the optical light-emitting performance. Its electromagnetic properties can be used to detect authenticity by instruments; optical luminescence properties can be used by the public...

Claims

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Application Information

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IPC IPC(8): D01F2/08C08B9/00G01N21/73G01N27/447G01N27/62
CPCD01F2/08C08B9/00G01N27/62G01N27/447G01N21/73
Inventor 刘宇清万成伟王钟王国和潘志娟
Owner NANTONG TEXTILE & SILK IND TECH RES INST
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