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Method for rapidly identifying vegetable dyes in dyed textile

A technology for vegetable dyes and textiles, applied in the field of chemical analysis, can solve problems such as low detection efficiency, inability to detect multiple vegetable dyes at the same time, and inability to meet the rapid identification of vegetable dyes on textiles.

Active Publication Date: 2018-01-09
HENAN ZHONGDA HENGYUAN BIOTECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing high-performance liquid chromatography has the following problems: for different dyed textiles, it is necessary to use different stripping methods and different liquid chromatography conditions for detection, so it is impossible to detect a variety of plant dyes at the same time, resulting in a high detection efficiency. Low, unable to meet the needs of rapid identification of vegetable dyes on textiles

Method used

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  • Method for rapidly identifying vegetable dyes in dyed textile
  • Method for rapidly identifying vegetable dyes in dyed textile
  • Method for rapidly identifying vegetable dyes in dyed textile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: the preparation and mensuration of mixed standard solution

[0035] 1) Accurately weigh the standard substances of rubidin, hydroxyrubidin, curcumin, indirubin and crocetin, dissolve them in methanol and make a single standard storage solution with a concentration of 500.00 mg / L;

[0036] 2) Accurately pipette 2.50 mL each of the above five single standard storage solutions into a 25 mL volumetric flask, dilute with methanol to make a mixed standard working solution with a concentration of 50.00 mg / L;

[0037] 3) Then dilute the mixed standard working solution with methanol to prepare a series of mixed standard solutions with concentrations of 50.00, 10.00, 5.00, 1.00, and 0.50 mg / L;

[0038] 4) Measure the above-mentioned series of mixed standard solutions with a high performance liquid chromatograph, take the peak area as the ordinate, and the concentration as the abscissa to carry out linear regression fitting, and the specific chromatographic condition...

Embodiment 2

[0047] Embodiment 2: the mensuration and result judgment of vegetable dye dyed textile

[0048] Test sample 1 is madder dyed cotton cloth, test sample 2 is turmeric dyed cotton cloth, test sample 3 is plant indigo dyed cotton cloth, and test sample 4 is gardenia yellow dyed cotton cloth.

[0049] Accurately weigh 2g of textiles dyed with different plant dyes, add 10mL of methanol, ultrasonic stripping and extraction for 10-20 minutes, collect the extract by filtration, repeat the stripping and extraction for 3 times, combine the filtrate, concentrate with a rotary evaporator, and then use 1mL of methanol Rinse, dissolve, and filter with a 0.46 μm organic microporous membrane to obtain the test solution;

[0050] Measure the above-mentioned sample liquid to be tested according to the high performance liquid chromatography condition in embodiment 1, record chromatogram, refer to figure 2 , image 3 , Figure 4 , Figure 5 . The HPLC chromatograms of the samples to be teste...

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Abstract

The invention discloses a method for rapidly identifying vegetable dyes in dyed textile. According to the method, whether a test sample contains specific representative components in plant dyes or notis determined with HPLC (high performance liquid chromatography), and whether the test sample is dyed with corresponding plant dyes is identified. The plant dyes comprise at least one of madder, plant indigo blue, gardenia yellow and turmeric, and the specific representative components in the plant dyes specifically comprise alizarin and / or purpurin in the madder, curcumin in the turmeric, indirubin in the plant indigo blue and crocetin in the gardenia yellow. The same stripping solvent and sample preparation method is used, alizarin, purpurin, curcumin, indirubin and crocetin are determinedsimultaneously with HPLC, finally, the four plant dyes including the madder, the plant indigo blue, the gardenia yellow and the turmeric in dyed textile can be rapidly identified, and the method is rapid, accurate and efficient.

Description

technical field [0001] The invention belongs to the technical field of chemical analysis, in particular to a method for quickly identifying vegetable dyes in dyed textiles. Background technique [0002] Plant dyes refer to dyes that use pigments extracted from natural flowers, grasses, trees, stems, leaves, fruits, seeds, skins or roots. The use of plant dyes is the mainstream of ancient dyeing technology in my country. [0003] Since the emergence of chemically synthesized dyes at the beginning of the 20th century, due to their excellent dyeing performance, numerous varieties and low cost, plant dyes have gradually withdrawn from their dominant position in the dye market. In recent years, with the improvement of living standards, people's concept of health, ecology, and environmental protection has been continuously strengthened. Some plant dyes with medicinal value such as antibacterial, anti-ultraviolet, and mosquito repellent have been developed and applied to textile fa...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06
CPCC09B61/00
Inventor 韩海涛金子恒李轩焦军伟马国徽宋超宋培培万建锋
Owner HENAN ZHONGDA HENGYUAN BIOTECH CO LTD
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