Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method of naturally dyeing fibers using carotenoids

A technology of carotene and use, which is applied in the field of natural dyeing, can solve the problems of oxygen, heat and light instability, and less application, and achieve the effect of low price, high extraction efficiency, and no burden on the environment

Active Publication Date: 2017-12-08
嘉兴怡桐纺织科技股份有限公司
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carotenoids are slightly fat-soluble substances, soluble in acetone, chloroform and other organic solvents, the pure product is dark red or dark red, shiny rhombohedral or crystalline powder, but unstable to oxygen, heat and light, so currently It is also mainly used as food coloring, less used in dyeing and weaving industry

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method of naturally dyeing fibers using carotenoids

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Wash fresh carrots, tomatoes and gardenias with a weight ratio of 1:0.5:0.3, blanch them in water at 95°C for 30s to inhibit the activity of enzymes, take them out to dry, cut into pieces and smash them to form a mud-like substance , put the muddy material in a supercritical carbon dioxide equipment, at 250kg / cm 2 96% of carotenoids are extracted to obtain a carotenoid extract under the pressure and temperature of 50°C.

[0028] (2) the carotenoid extract prepared by step (1) is placed in the solution of 0.1mol / L monovalent sodium ion and divalent magnesium ion, wherein the mol ratio of monovalent sodium ion and divalent magnesium ion is 1 : 1, stir to form a mixed solution, adjust the pH value of the mixed solution to 10 with a citric acid solution, and obtain a carotenoid dye solution with a carotenoid content of 75% for color protection.

[0029] (3) With a bath ratio of 1:50, the protein fibers pretreated by plasma technology were immersed in the color-protecti...

Embodiment 2

[0031] (1) Wash fresh carrots, tomatoes and gardenias with a weight ratio of 1:1:0.7, blanch them in water at 100°C for 30s to inhibit the activity of enzymes, take them out to dry, cut into pieces and smash them to form a mud-like substance , put the muddy substance in a supercritical carbon dioxide equipment, at 300kg / cm 2 The carotenoid extract is obtained by extracting 98% of carotenoids under the pressure of 55°C.

[0032] (2) the carotenoid extract prepared by step (1) is placed in the solution of 0.3mol / L monovalent sodium ion and divalent magnesium ion, wherein the mol ratio of monovalent sodium ion and divalent magnesium ion is 1 : 1, stir evenly to form a mixed solution, adjust the pH value of the mixed solution to 11 with a citric acid solution, and obtain a color-protecting carotenoid dye solution with a carotenoid content of 80%.

[0033] (3) With a bath ratio of 1:50, the protein fibers pretreated by plasma technology were immersed in the color-preserving carote...

Embodiment 3

[0035] (1) Wash fresh carrots, tomatoes and gardenias with a weight ratio of 1:0.6:0.5, blanch them in water at 95°C for 30s to inhibit the activity of enzymes, take them out to dry, cut into pieces and smash them to form a mud-like substance , put the muddy material in a supercritical carbon dioxide equipment, at 280kg / cm 2 97% carotenoid is extracted to obtain a carotenoid extract under the pressure and 52°C temperature.

[0036] (2) the carotenoid extract prepared by step (1) is placed in the solution of 0.2mol / L monovalent sodium ion and divalent magnesium ion, wherein the mol ratio of monovalent sodium ion and divalent magnesium ion is 1 : 1, stir evenly to form a mixed solution, adjust the pH value of the mixed solution to 10.5 with a citric acid solution, and obtain a color-protecting carotenoid dye solution with a carotenoid content of 77%.

[0037](3) With a bath ratio of 1:50, the cellulose fibers pretreated by plasma technology were immersed in the color-protecting...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for naturally dyeing fiber by using carotenoid. The method comprises the following steps: (1) washing fresh carrot, tomatoes and jasmine, blanching in water of 95-100 DEG C for 30 seconds to inhibit activity of enzyme, taking out, drying in air, cutting into blocks, crushing to obtain a muddy substance, putting the muddy substance into supercritical carbon dioxide equipment, and extracting so as to obtain a carotenoid extract; (2) putting the carotenoid extract prepared in step (1) into a metallic ion solution, uniformly stirring to obtain a mixed solution, adjusting the pH value of the mixed solution to be 10-11 by using a citric acid solution, thereby obtaining a color-protecting carotenoid dyeing liquid; (3) soaking the fiber after active pretreatment into the color-protecting carotenoid dyeing liquid prepared in step (2) in a bath ratio of 1:50. Directly dyeing, taking out, fixing the color, washing with water, and drying, thereby obtaining the fiber dyed with carotenoid. The method is low in cost, good in dyeing property and color fastness, and green and environment-friendly.

Description

Technical field: [0001] The invention belongs to the technical field of textile materials, and in particular relates to a method for using carotenoids to dye fibers naturally. Background technique: [0002] The 21st century is a new century that advocates green, safety and environmental protection. Ecological textiles are more and more popular and loved by people. Therefore, more and more consumers have a soft spot for textiles produced by green processing technology. Plant dyes are the main varieties of natural dyes, which refer to dyes extracted from flowers, stems, leaves, fruits or core materials at noon. Because such dyes come from nature, they cause environmental pollution in the middle of production, processing and use. And on the human body on health care, the role of medicine. [0003] There are 3000-5000 substances that can be used for dyeing in nature. Among them, plant dyes have a relatively complete chromatogram, which can obtain purple, red, yellow, green, bro...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/34D06P3/60D06P3/04D06M10/00C09B61/00D06M101/06
CPCY02P20/54
Inventor 吴国庆
Owner 嘉兴怡桐纺织科技股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com