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Process of marking a textile substrate

A textile and substrate technology, applied in the field of dyeing compositions, can solve problems such as indistinguishability, and achieve the effect of sensitive verification methods

Inactive Publication Date: 2016-02-03
FEYECON DEV & IMPLEMENTATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a complicating factor is the difficulty in distinguishing textile products produced by supercritical dyeing methods from those produced by conventional dyeing methods

Method used

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  • Process of marking a textile substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] Use CO containing 2 (120 ℃, 250bar), 1-2% disperse dyes (20mg / kg textile) and the supercritical dyeing medium of the Fe(II)-maltol that weight is about 1% of disperse dyes weight is to polyester fabric (polyester fabric) Ethylene terephthalate, polyethyleneterephtalate) for dyeing.

[0101] After dyeing, a piece of dyed fabric was sprayed with a previously prepared alkaline solution prepared by mixing 1.2 g of luminol, 6 g of NaOH and 150 g of water. Next, add 3-4 drops of hydrogen peroxide solution (3%) dropwise to the alkaline sprayed part.

[0102] The chemiluminescent reaction occurs when acetone is added to the part of the textile product that has been sprayed with an alkaline solution and an oxidizing agent. The chemiluminescent reaction produces a few seconds of blue light.

Embodiment 2

[0104] Textile products are treated in the same manner as in Example 1, except that iron pentacarbonyl (Fe(CO) 5 ) instead of Fe(II)-maltol.

[0105] Likewise, when acetone was added, blue chemiluminescence was observed.

Embodiment 3

[0107] Use CO containing 2 (120 ℃, 250bar), 1-2% disperse dyes (20mg / kg textile) and the supercritical dyeing medium of 8-hydroxyquinoline that weight is about 1% of disperse dyes weight to polyester fabric (polyphenylene Ethylene diformate) for dyeing.

[0108] After dyeing, a piece of dyed fabric was sprayed with a test solution containing the composition shown in Table 1.

[0109] Table 1

[0110]

[0111] A chemiluminescent reaction was observed when acetone was added to the part of the textile product that had been sprayed with the test liquid. The chemiluminescent reaction produces an intense blue light that lasts for a few seconds.

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Abstract

The invention relates to the marking of textile products that have been dyed using a supercritical dyeing process. More particularly, the invention provides a process of marking a textile substrate with a tracer, said process comprising contacting the textile substrate with a supercritical or near-critical dyeing medium containing a dye and a tracer, said tracer being selected from a metal chelate and a chemiluminescent agent. The process of the present invention uses the supercritical or near-critical dyeing medium as a vehicle for depositing a tracer onto the textile substrate that is also dyed using this medium. The presence of the deposited tracer on the dyed textile can be detected using a simple and reliable authentication method. The invention also concerns a marked textile product obtained by the aforementioned process. Also provided are a dyeing composition that can be used in the aforementioned process as well as methods for authenticating textile products that have been marked using his process.

Description

technical field [0001] The present invention relates to a method for marking a textile substrate with a tracer, the method comprising contacting the textile substrate with a supercritical or near-critical dyeing medium containing a dye and a tracer selected from the group consisting of Metal chelates and chemiluminescent agents. [0002] The invention also relates to a marked textile product obtained by the aforementioned method. [0003] The present invention also provides a dyeing composition that can be used in the aforementioned method and can also be used to verify the textile products marked by the method. Background technique [0004] The textile industry is one of the largest sources of pollution in the world. The World Bank estimates that approximately 20% of global industrial water pollution comes from the processing and dyeing of textiles. The textile industry is second only to agriculture as a polluter of clean water. Dyeing, rinsing and treating textiles all...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/00D06P1/94D06P1/81B41M3/14G01N33/36B41M3/00D06H1/00
CPCB41M3/142D06H1/00D06P1/0012D06P1/004D06P1/81D06P1/94G01N33/367D06P3/54
Inventor M·范德克兰D·O·特拉姆比塔斯I·G·扬G·F·武尔莱
Owner FEYECON DEV & IMPLEMENTATION
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