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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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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Literature research and market research found that lyocell fabrics dyed with natural dyes are rarely reported and need to be further developed

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The preparation method of the yellow Lyocell fabric that plant dyestuff osmanthus dyes makes, described method comprises the steps:

[0039] (1) Preparation of yellow plant dye stock solution: wash and mash 10g of sweet-scented osmanthus, steam distillation at 240°C for 120 min, the amount of water steam is 150mL / min, after distillation, collect the filtrate to obtain yellow plant dye stock solution.

[0040] (2) Chemical modification: Add 1.5mL 5wt% formaldehyde aqueous solution and 0.3g 1-amino-2-sulfate ethyl sulfone ethane to 150mL yellow plant dye stock solution prepared in step (1), and use 30wt% NaOH The lye adjusts the pH of the reaction solution to 10.5, continuously stirs, the reaction time is 90 minutes, and the reaction temperature is 85°C to prepare a modified yellow vegetable dye solution.

[0041] (3) Dyeing: the modified yellow plant dye solution of step (2) is diluted with water to obtain a dyeing solution, the amount of water is 15 times that of the m...

Embodiment 2

[0048] The preparation method of the yellow Lyocell fabric that plant dyestuff osmanthus dyes makes, described method comprises the steps:

[0049] (1) Preparation of yellow plant dye stock solution: wash and mash 10g of sweet-scented osmanthus, steam distillation at 240°C for 120 min, the amount of water steam is 150mL / min, after distillation, collect the filtrate to obtain yellow plant dye stock solution.

[0050] (2) Chemical modification: Add 1.5mL 5wt% formaldehyde aqueous solution and 0.375g 1-amino-2-sulfate ethyl sulfone ethane to 150mL yellow plant dye stock solution prepared in step (1), and use 30wt% NaOH The lye adjusts the pH of the reaction solution to 10.3, continuously stirs, the reaction time is 80 minutes, and the reaction temperature is 80° C. to prepare a modified yellow vegetable dye solution.

[0051] (3) Dyeing: the modified yellow plant dye solution of step (2) is diluted with water to obtain a dyeing solution, the amount of water is 15 times that of t...

Embodiment 3

[0058] The preparation method of the yellow Lyocell fabric that plant dyestuff osmanthus dyes makes, described method comprises the steps:

[0059] (1) Preparation of yellow plant dye stock solution: wash and mash 10g of sweet-scented osmanthus, steam distillation at 240°C for 120 min, the amount of water steam is 150mL / min, after distillation, collect the filtrate to obtain yellow plant dye stock solution.

[0060] (2) Chemical modification: Add 1.5mL 5wt% formaldehyde aqueous solution and 0.25g 1-amino-2-sulfate ethyl sulfone ethane to 150mL yellow vegetable dye stock solution prepared in step (1), and use 30wt% NaOH The lye adjusts the pH of the reaction solution to 10.8, continuously stirs, the reaction time is 100 minutes, and the reaction temperature is 90°C to prepare a modified yellow vegetable dye solution.

[0061] (3) Dyeing: the modified yellow plant dye solution of step (2) is diluted with water to obtain a dyeing solution, the amount of water is 15 times that of...

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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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.

Description

technical field [0001] The invention belongs to the technical field of fabric preparation, and in particular relates to yellow lyocell fabric dyed with plant dye osmanthus fragrans and a preparation method thereof. Background technique [0002] From the moment when human society came into being, human beings already know how to obtain various colors from the plants of nature to decorate their clothing. They squeeze the sap from weeds or branches, and use the obtained colors for dyeing or drawing other patterns, but due to the influence of climate, seasonal changes, and differences in plant dyeing methods, the colors obtained are even more varied. It's more like the incredible fun of the plant dyes that nature has given us. [0003] Before the 19th century, most of the dyes used in textile printing and dyeing were plant dyes, but after the middle of the 19th century, synthetic dyes gradually replaced plant dyes in the printing and dyeing industry due to their colorful, compl...

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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IPC IPC(8): D06P1/34D06P1/38D06P3/60D06P3/66D06P5/10C09B62/503C09B67/24
CPCD06P1/34D06P1/38D06P3/60D06P3/66D06P5/10C09B62/503C09B67/0072Y02P70/62
Inventor 周凡雨彭雄义邓健董雄伟李强蔡亚军刘仰硕蔡映杰
Owner WUHAN TEXTILE UNIV
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