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Novel nanoscale natural dye for digital printing and preparation method of natural dye

A technology of natural dyes and digital printing, which is applied in the field of textile materials, can solve the problems of research on natural dyes that have not appeared in nanoscale digital printing, and achieve the effects of novel and rich varieties of designs and colors, improved clarity, and high dyeing rate

Inactive Publication Date: 2016-01-20
唐山明州科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be known from the above existing technologies that more excellent performance and more suitable digital printing dyes can be prepared through the addition of high-tech nanotechnology, but there is no research on natural dyes for nanoscale digital printing.

Method used

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  • Novel nanoscale natural dye for digital printing and preparation method of natural dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Wash, dry, and grind natural dye tea leaves into 80-mesh powder. After 150W ultrasonic treatment for 30 minutes and ethanol extraction twice, the filtrate is obtained by filtration, vacuum rotary evaporation, concentration, and freezing at -50°C. Dry for 20 hours to obtain powdery natural dye extract.

[0038] (2) The powdered natural dye extract prepared in step (1) is first chopped and ground to a particle size of less than 5mm, and then the 3 After crushing by high-speed air flow for 60 min at 1 / min, nano-scale natural dyes with an average particle size of 300 nm were obtained.

[0039] (3) In parts by weight, add 10 parts of ethylene glycol, 1 part of hydrolyzed chitosan, 1 part of fatty alcohol polyoxyethylene ether, 2 parts of polyethylene and 0.5 part of citric acid into 50 parts of softening The treated deionized water was fully mixed at room temperature to form a mixed solution.

[0040] (4) Slowly add 10 parts of nano-scale natural dyes prepared in step ...

Embodiment 2

[0042] (1) Wash the natural dye rhubarb as a raw material, dry it in the sun, and grind it into a 100-mesh powder. After 250W ultrasonic treatment for 30 minutes and ethanol extraction for 3 times, the filtrate was obtained by filtration, vacuum rotary evaporation, concentration, and freezing at -80°C. Dry for 30 hours to obtain powdery natural dye extract.

[0043] (2) The powdered natural dye extract prepared in step (1) is first chopped and ground to a particle size of less than 5mm, and then the 3 After crushing by high-speed air flow for 90 minutes at 1 / min, nano-scale natural dyes with an average particle size of 300 nm were obtained.

[0044] (3) by weight, 15 parts of sodium acetate, 10 parts of hydrolyzed chitosan, 5 parts of quaternary ammonium salt cationic surfactant, 10 parts of paraffin and 4 parts of ammonia are added to 80 parts of softened In deionized water, mix thoroughly at room temperature to form a mixed solution.

[0045](4) Slowly add 25 parts of nano...

Embodiment 3

[0047] (1) Wash the natural dye Scutellaria baicalensis as a raw material, dry it in the sun, and grind it into a 90-mesh powder. After 200W ultrasonic treatment for 30 minutes and ethanol extraction twice, the filtrate is obtained by filtration, vacuum rotary evaporation, concentration, and freezing at -60°C Dry for 25 hours to obtain powdery natural dye extract.

[0048] (2) The powdered natural dye extract prepared in step (1) is first chopped and ground to a particle size of less than 5mm, and then the 3 80 min under high-speed air flow to obtain nano-scale natural dyes with an average particle size of 100 nm.

[0049] (3) by weight, 12 parts of ethylene glycol, 5 parts of hydrolyzed chitosan, 3 parts of quaternary ammonium salt cationic surfactant, 5 parts of 5 paraffin and 2 parts of citric acid are added to 60 parts of The softened deionized water was mixed thoroughly at room temperature to form a mixed solution.

[0050] (4) Slowly add 15 parts of nano-scale natural ...

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Abstract

The invention provides novel nanoscale natural dye for digital printing and a preparation method of the natural dye. The preparation method comprises specific steps as follows: (1), raw materials of the natural dye are washed clean, dried under the sun, ground into powder, subjected to ultrasonic treatment and chemical solvent extraction and filtered, a filtering liquid is obtained, evaporated, concentrated and freeze-dried, and powdery natural dye extracts are obtained; (2), the powdery natural dye extracts are ground and crushed through high-speed air flow, and the nanoscale natural dye is obtained; (3), a humectant, a sterilizer, a surface tension modifier, a viscosity modifier and a PH (potential of hydrogen) modifier are added to a solvent and sufficiently mixed at the normal temperature, and a mixed solution is formed; (4), the nanoscale natural dye and nanoscale filler are slowly added to the mixed solution, the mixture is homogenized, stirred, left to stand and filtered, and the novel nanoscale natural dye for digital printing is obtained. The novel nanoscale natural dye which is prepared with the method and used for digital printing has good water solubility, small particle size, bright color, high purity, pearly lustre and ceramic texture and cannot bleed.

Description

Technical field: [0001] The invention belongs to the technical field of textile materials, and in particular relates to a natural dye for nanoscale digital printing and a preparation method thereof. Background technique: [0002] With the improvement of living standards and the development of science and technology, people have higher requirements for the appearance, color and performance of textiles. Fabric printing refers to the process of forming patterns on fabrics with dyes or paints. Fabric printing belongs to partial dyeing, which is one of the important ways of pattern decoration. [0003] The main methods of fabric printing are: direct printing, discharge printing, resist printing, pigment printing, transfer printing and digital printing. Digital printing is to input the image into the computer, and control the digital printing machine through software to spray the dye on the sublimation transfer paper in a dispersed manner, and then transfer the high-precision pa...

Claims

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Application Information

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IPC IPC(8): D06P1/34D06P1/48D06P1/673D06P1/651D06P1/653D06P1/613D06P1/66D06P1/52D06P1/46
Inventor 徐强
Owner 唐山明州科技有限公司