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Method for dyeing fabric with natural mineral dye

A technology of natural minerals and dyeing methods, applied in the field of fabric dyeing, can solve problems such as poor color fastness and incomplete color spectrum, and achieve the effect of improving color fastness and increasing functionality

Inactive Publication Date: 2015-04-22
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although natural dyes still have many shortcomings, such as poor color fastness, incomplete chromatogram, and expensive prices of most varieties, it is impossible to completely replace synthetic dyes, but it is valuable as a partial replacement or supplement for synthetic dyes, especially with The development of some high value-added textiles with natural dyes has broad prospects for development

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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  • Method for dyeing fabric with natural mineral dye
  • Method for dyeing fabric with natural mineral dye
  • Method for dyeing fabric with natural mineral dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Modification of pure cotton fabric: Add 0.5g of anionic emulsifier sodium lauryl sulfate powder into 200g of water, stir, and after the sodium lauryl sulfate is completely dissolved, add dropwise to the above 0.25% solution Add 4g of epichlorohydrin (fabric modifier) ​​dropwise and stir until a stable and uniform emulsion of epichlorohydrin is prepared.

[0041] The pure cotton fabric (warp and weft yarn density 14.575tex×14.575tex, warp density 133 threads / 10cm, weft density 72 threads / 10cm) was treated by the modified method of two dipping and two rolling, and the excess rate was 70%. Dry at 110°C; treat the dried fabric in 12g / L NaOH solution at 60°C for 30 minutes, then take it out and wash it with water to make the pH of the cloth surface 7. After drying, measure the epoxy value on the cotton fabric ,stand-by.

[0042] The determination method of epoxy value is: configure a certain concentration of HClO 4 And NaOH solution, the concentration of calibrated NaO...

Embodiment 2

[0058] (1) Modification of pure cotton fabric: Add 0.5g of anionic emulsifier sodium lauryl sulfate powder into 200g of water, stir, and after the sodium lauryl sulfate is completely dissolved, add dropwise to the above 0.25% solution Add 4g of epichlorohydrin (fabric modifier) ​​dropwise and stir until a stable and uniform emulsion of epichlorohydrin is prepared.

[0059] The pure cotton fabric (warp and weft yarn density 14.575tex×14.575tex, warp density 133 threads / 10cm, weft density 72 threads / 10cm) was modified by dipping modification method. / L NaOH solution at 60°C for 30 minutes, then take it out and wash it with water to make the pH value of the cloth surface 7, and dry it for later use. By measuring the epoxy value on the modified fabric, the epoxy value on the fabric is 0.009mol / g fabric.

[0060] (2) Dyeing of mineral dyes on fabrics

[0061] The iron yellow with a particle size of 150nm in Example 1 is prepared into a dye solution with a concentration of 10g / L, ...

Embodiment 3

[0067] (1) Modification of pure cotton fabric: 0.5g non-ionic emulsifier AEO 10 Add it into 200g of water, stir, then add 4g of epichlorohydrin (fabric modifier) ​​dropwise to the above 0.25% solution, and stir while adding it until a stable and uniform emulsion of epichlorohydrin is prepared.

[0068] The pure cotton fabric (warp and weft yarn density 14.575tex×14.575tex, warp density 133 threads / 10cm, weft density 72 threads / 10cm) was treated by the modified method of two dipping and two rolling, and the excess rate was 70%. Dry at 110°C; treat the dried fabric in 12g / L NaOH solution at 60°C for 30 minutes, then take it out and wash it with water to make the pH of the cloth surface 7. After drying, measure the epoxy value on the cotton fabric ,stand-by.

[0069] By measuring the epoxy value on the modified fabric, the epoxy value on the fabric is 0.004mol / g fabric.

[0070] (2) Dyeing of mineral dyes on fabrics

[0071]The iron yellow with a particle size of 150nm in Exam...

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Abstract

The invention relates to a method for dyeing fabric with a natural mineral dye. The method comprises the following steps: (1) modifying fabric with a modifying agent by a dipping or padding method for use; and (2) nanocrystallizing the natural mineral dye with a dispersing agent, preparing the nanocrystallized mineral dye into a dye solution, dyeing the modified fabric by a double-dipping and double-padding method, and drying, baking, soaping, rinsing and drying the fabric. The method for dyeing the fabric with the natural mineral dye is simple and feasible; and by the method, the color fastness of the natural dye is improved, the functionality of the natural dye is improved, and dual purposes of high-color fastness ecological dyeing and functional finishing of the natural dye are achieved.

Description

technical field [0001] The invention belongs to the field of fabric dyeing methods, in particular to a method for dyeing natural mineral dyes on fabrics. Background technique [0002] Textiles are easily irritated to human skin after being dyed with some chemically synthesized dyes. On the other hand, chemically synthesized dyes will have a certain impact on the environment during production and use. With the enhancement of ecological and environmental awareness, more and more consumers prefer green and safe textiles and pay attention to the safety of textile dyes. [0003] In terms of dyeing with natural dyes, as some varieties of synthetic dyes are banned, people's interest in natural dyes has increased again. The main reason is that natural dyes are obtained from plants, animals, minerals or microorganisms such as bacteria, fungi, molds, and some other natural raw materials, with little or no chemically processed dyes. Most natural dyes are ecologically compatible with ...

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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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/34D06P1/52C08F222/06C08F220/18C08F220/14C08F220/28C08F220/06D06M13/11D06M13/123D06M13/332D06M13/395D06M101/06D06M101/32D06M101/12
Inventor 陆大年杨群陈薇刘爱莲柴红梅宋伟
Owner DONGHUA UNIV