Yellow lyocell fabric prepared by dyeing osmanthus fragrans with vegetable dye and preparation method of yellow lyocell fabric

A technology of vegetable dyes and sweet-scented osmanthus, applied in dyeing methods, reactive dyes, azo dyes, etc., to achieve the effect of simplifying the dyeing process, high K/S value, and reducing environmental pollution

Pending Publication Date: 2021-03-16

WUHAN TEXTILE UNIV

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Literature research and market research found that lyocell fabrics dyed...

Abstract

The invention relates to a yellow lyocell fabric prepared by dyeing osmanthus fragrans with a vegetable dye and a dyeing method of the yellow lyocell fabric. The method comprises the following steps of extracting a yellow vegetable dye stock solution from osmanthus fragrans by steam distillation, and grafting yellow pigment in the stock solution with 1-amino-2-sulfate ethyl sulfone ethane to prepare a yellow vegetable dye modified solution; and finally, dyeing the lyocell fabric in the yellow vegetable dye modified solution to obtain the yellow lyocell fabric. Yellow pigment in osmanthus fragrans with low reaction activity is changed into natural dye with high reaction activity; in addition, other mordant, dyeing accelerant and other dye assistants do not need to be added in the dyeing process, the dyeing process is simplified, the cost is saved, and meanwhile, environmental pollution caused by dyeing is reduced; and the dyed yellow lyocell fabric has a relatively high K/S value, and is relatively high in soaping discoloration resistance fastness and dry rubbing resistance color fastness.

Application Domain

Reactive dyesDyeing process

Technology Topic

SulfoneOsmanthus fragrans +4

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Examples

Experimental program(3)
Comparison scheme(3)

Example Embodiment

[0037]Example 1

[0038]Preparation method of yellow Leedle fabric made by plant dye osmanthus, including the following steps:

[0039](1) Preparation of yellow plant dye stock: Wash 10G osmanthus and mash, 240 ° C, 120 min of water vapor distillation, water vapor is used in an amount of 150 ml / min, after the distillation, collect the filtrate to prepare yellow plant dyes The stock solution.

[0040](2) Chemical modification: 1.5 ml of 5 wt% formaldehyde aqueous solution and 0.3 g of 1-amino-2-sulfate ethyl sulfoxide were added to a 150 ml step (1), and 0.3 g 1-amino-2-sulfate ethyl sulfone, with 30% by weight NaOH. The base solution regulates the pH of the reaction liquid to 10.5, continuously stirred, the reaction time is 90 minutes, the reaction temperature is 85 ° C, and the modified yellow plant dye solution is obtained.

[0041](3) Dyeing: The modified yellow plant dye solution of step (2) is diluted with water to prepare the dyeing liquid, and the amount of water is used as 15 times the amount of the modified yellow plant dye solution, and the dyed liquid is regulated with 30% by weight of NaOH. The pH was 10.5; the Leeder fabric and the dyed liquid were placed in a dyeing machine; the bath ratio was 1: 25, the dyeing time was 40 minutes, the dyeing temperature was 55 ° C, and the stain was completed, and the Leeder fabric was taken out.

[0042]The preparation method of 1-amino-2-sulfate ethyl sulfone ethane includes the following steps:

[0043]Steps 001, 2-chlorocyanol sulfate: 10 ml of 2-chlorocol and 15 ml of chlorosulfonic acid in three flasks, the reaction time is 2 hours, the reaction temperature is 55 ° C; after the reaction is completed, the reaction will be reacted The solution was cooled crystallization, the cooling temperature was -3 ° C, the crystalline product obtained 2-chlorocol sulfate;

[0044]Preparation of step 002, 1-amino-2-sulfate ethylthionyl ether is prepared: 5 g 2-chlorocol sulfate is dissolved in 150 mL of 10% by weight of aqueous sodium hydroxide solution, at room temperature In response, the reaction time was 2 hours to prepare a reaction liquid containing 1-amino-2-sulfate ethylthio ether ethane;

[0045]Steps 003, 1-amino-2-sulfate ethyl sulfone ethane: 0. The 1-amino-2-sulfate ethyl sulfide-containing reaction solution prepared by 10 ml of step 002 is added dropwise. The hydrogen peroxide solution of 2 ml 30 wt% was 5 minutes. After the dropwise addition was completed, the reaction was 2 hours, and the reaction was distilled off after the reaction was completed, and 1-amino-2-sulfate ethyl sulfone ethane was obtained.

[0046](4) Post-treatment of the Leeder fabric: the Leedle fabric after step (3) is washed with cold water, soap, washed, dry to dry the yellow Leeder fabric; the soap cooking condition is: soap sheet 2 g / l, pure base 2 g / l, 65 ° C, 15 min, bath ratio of 1:40.

Example Embodiment

[0047]Example 2

[0048]Preparation method of yellow Leedle fabric made by plant dye osmanthus, including the following steps:

[0049](1) Preparation of yellow plant dye stock: Wash 10G osmanthus and mash, 240 ° C, 120 min of water vapor distillation, water vapor is used in an amount of 150 ml / min, after the distillation, collect the filtrate to prepare yellow plant dyes The stock solution.

[0050](2) Chemical modification: 1.5 ml of 5 wt% formaldehyde aqueous solution and 0.375 g of 1-amino-2-sulfate ethyl sulfalkase were added to the yellow plant dye stock prepared by 150 ml of step (1) and 0.375 g of 1-amino-2-sulfate ethylene sulfone, with 30% by weight NaOH. The base solution regulates the pH of the reaction liquid to 10.3, continuously stirred, the reaction time is 80 minutes, the reaction temperature is 80 ° C, and the modified yellow plant dye solution is obtained.

[0051](3) Dyeing: The modified yellow plant dye solution of step (2) is diluted with water to prepare the dyeing liquid, and the amount of water is used as 15 times the amount of the modified yellow plant dye solution, and the dyed liquid is regulated with 30% by weight of NaOH. The pH was 10.3; the Leeder fabric and the dyed liquid were placed in a staining machine, the bath ratio was 1:20, the dyeing time was 40 minutes, the dyeing temperature was 50 ° C, and the stain was taken out of the Leeder fabric.

[0052]The preparation method of 1-amino-2-sulfate ethyl sulfone ethane includes the following steps:

[0053]Steps 001, 2-chlorocyanol sulfate: 10 ml of 2-chlorocol and 15 ml of chlorosulfonic acid in three flasks, the reaction time is 2 hours, the reaction temperature is 55 ° C; after the reaction is completed, the reaction will be reacted The solution was cooled crystallization, the cooling temperature was -3 ° C, the crystalline product obtained 2-chlorocol sulfate;

[0054]Preparation of step 002, 1-amino-2-sulfate ethylthionyl ether is prepared: 5 g 2-chlorocol sulfate is dissolved in 150 mL of 10% by weight of aqueous sodium hydroxide solution, at room temperature In response, the reaction time was 2 hours to prepare a reaction liquid containing 1-amino-2-sulfate ethylthio ether ethane;

[0055]Steps 003, 1-amino-2-sulfate ethyl sulfone ethane: 0. The 1-amino-2-sulfate ethyl sulfide-containing reaction solution prepared by 10 ml of step 002 is added dropwise. The hydrogen peroxide solution of 2 ml 30 wt% was 5 minutes. After the dropwise addition was completed, the reaction was 2 hours, and the reaction was distilled off after the reaction was completed, and 1-amino-2-sulfate ethyl sulfone ethane was obtained.

[0056](4) Post-treatment of the Leeder fabric: the Leedle fabric after step (3) is washed with cold water, soap, washed, dry to dry the yellow Leeder fabric; the soap cooking condition is: soap sheet 1 g / l, pure base 1 g / l, 65 ° C, 15 min, bath ratio of 1:30.

Example Embodiment

[0057]Example 3

[0058]Preparation method of yellow Leedle fabric made by plant dye osmanthus, including the following steps:

[0059](1) Preparation of yellow plant dye stock: Wash 10G osmanthus and mash, 240 ° C, 120 min of water vapor distillation, water vapor is used in an amount of 150 ml / min, after the distillation, collect the filtrate to prepare yellow plant dyes The stock solution.

[0060](2) Chemical modification: 1.5 ml of 5 wt% formaldehyde aqueous solution and 0.25 g of 1-amino-2-sulfate ethyl sulfoxide were added to the yellow plant dye stock solution prepared at 150 ml of step (1), using 30 wt% NaOH. The base solution regulates the pH of the reaction liquid to 10.8, continuously stirred, the reaction time is 100 minutes, the reaction temperature is 90 ° C, and the modified yellow plant dye solution is obtained.

[0061](3) Dyeing: The modified yellow plant dye solution of step (2) is diluted with water to prepare the dyeing liquid, and the amount of water is used as 15 times the amount of the modified yellow plant dye solution, and the dyed liquid is regulated with 30% by weight of NaOH. The pH is 10.8; the Leeder fabric and the dyed liquid were placed in a staining machine, the bath ratio was 1:30, the dyeing time was 40 minutes, the dyeing temperature was 60 ° C, and the stain was completed after the completion of the Leeder fabric.

[0062]The preparation method of 1-amino-2-sulfate ethyl sulfone ethane includes the following steps:

[0063]Steps 001, 2-chlorocyanol sulfate: 10 ml of 2-chlorocol and 15 ml of chlorosulfonic acid in three flasks, the reaction time is 2 hours, the reaction temperature is 55 ° C; after the reaction is completed, the reaction will be reacted The solution was cooled crystallization, the cooling temperature was -3 ° C, the crystalline product obtained 2-chlorocol sulfate;

[0064]Preparation of step 002, 1-amino-2-sulfate ethylthionyl ether is prepared: 5 g 2-chlorocol sulfate is dissolved in 150 mL of 10% by weight of aqueous sodium hydroxide solution, at room temperature In response, the reaction time was 2 hours to prepare a reaction liquid containing 1-amino-2-sulfate ethylthio ether ethane;

[0065]Steps 003, 1-amino-2-sulfate ethyl sulfone ethane: 0. The 1-amino-2-sulfate ethyl sulfide-containing reaction solution prepared by 10 ml of step 002 is added dropwise. The hydrogen peroxide solution of 2 ml 30 wt% was 5 minutes. After the dropwise addition was completed, the reaction was 2 hours, and the reaction was distilled off after the reaction was completed, and 1-amino-2-sulfate ethyl sulfone ethane was obtained.

[0066](4) Post-treatment of the Leeder fabric: the Leedle fabric after step (3) is washed with cold water, soap, washed, dry to dry the yellow Leeder fabric; the soap cooking condition is: soap sheet 3g / L, pure base 3g / L, 65 ° C, 15 min, bath ratio of 1:50.

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Classification and recommendation of technical efficacy words

low cost
Simplify the dyeing process

Method, apparatus and article for microfluidic control via electrowetting, for chemical, biochemical and biological assays and the like

InactiveUS7163612B2low cost

Owner:KECK GRADUATE INST OF APPLIED LIFE SCI

Yellow lyocell fabric prepared by dyeing osmanthus fragrans with vegetable dye and preparation method of yellow lyocell fabric

A technology of vegetable dyes and sweet-scented osmanthus, applied in dyeing methods, reactive dyes, azo dyes, etc., to achieve the effect of simplifying the dyeing process, high K/S value, and reducing environmental pollution

AI-Extracted Technical Summary

Problems solved by technology

Abstract

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Examples

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Example Embodiment

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Description & Claims & Application Information

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