A kind of preparation method of cotton fabric yellow vegetable dye

A technology for yellow plants and cotton fabrics, applied in the field of printing and dyeing, can solve the problems of increasing the difficulty of processing printing and dyeing wastewater, high preparation cost and complexity, and achieve the effects of high friction resistance, simple preparation method, and high color fastness to washing.

Active Publication Date: 2017-09-29
ZHEJIANG HAIMING IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Conventional methods of preparing vegetable dyes for cotton fabrics are often too complicated or use toxic additives, resulting in high preparation costs or increased difficulty in the treatment of printing and dyeing wastewater.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] The invention provides a method for preparing a yellow vegetable dye for cotton fabrics. The method comprises: putting orange peels in water according to a mass ratio of 1:(10-20), heating and ultrasonicating, and drying to obtain dye 1 after filtering; Ratio 1: (30-50) Put the petals of Jasmine japonica into an organic solvent, perform heating and intermittent ultrasonication, filter, concentrate under reduced pressure and dry in sequence to obtain dye 2; according to the mass ratio 10: (10-20): ( 0.5-1) Mix dye 1, dye 2 and loess to prepare yellow vegetable dye for cotton fabric.

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Embodiment 1

[0041] Wash, dry and pulverize orange peels and jasmine petals, put the pulverized orange peels in water at a mass ratio of 1:10, heat and ultrasonicate at 70 degrees Celsius for 2 hours, filter through a 100-mesh sieve, and filter the filtrate in Dye 1 was obtained by vacuum-drying at 30 degrees Celsius; the pH value of 90% hydrous ethanol was adjusted to 5 with hydrochloric acid, and the pulverized Jasmine jasmine petals were put into the ethanol solvent with adjusted pH value according to the solid-to-liquid ratio of 1:30. Heating at 50°C for 1 hour, ultrasonication every 20 minutes during the heating process; after stopping the heating, filter with a 100-mesh sieve, and at 40°C, use a rotary evaporator to concentrate the filtrate twice under reduced pressure to obtain concentrated dye Dye concentrate was vacuum-dried at 35 degrees Celsius to obtain dye 2; dye 1, dye 2 and loess were mixed according to the mass ratio of 10:10:0.5 to obtain cotton fabric yellow vegetable dye ...

Embodiment 2

[0043] Clean, dry and pulverize the orange peel and Jasmine jasmine petals, put the pulverized orange peel in water according to the mass ratio of 1:20, heat and ultrasonic for 4 hours at 100 degrees Celsius, filter with a 140-mesh sieve, and put the filtrate in the Vacuum-dry at 50 degrees Celsius to obtain dye 1; use sodium hydroxide to adjust the concentration to 90%-100% water-containing isopropanol to a pH value of 9, and put crushed winter jasmine petals into it according to a solid-to-liquid ratio of 1:50 to adjust the pH In the isopropanol solvent with a high value, heat at 65 degrees Celsius for 3 hours, and perform ultrasonication every 30 minutes during the heating process; after stopping the heating, filter it with a 140-mesh sieve, and pass the filtrate through a rotary evaporator at 50 degrees Celsius Concentrate under reduced pressure 4 times to obtain a concentrated dye solution, dry the concentrated dye solution at 50 degrees Celsius in vacuum to obtain dye 2; ...

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PUM

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Abstract

The invention relates to a preparation method of a cotton fabric yellow vegetable dye. The preparation method is characterized by comprising: putting orange peels into water according to a mass ratio of 1:(10-20), performing heating and ultrasonic treatment, and performing drying after filtration to obtain a dye 1; putting white jasmine petals into an organic solvent according to a solid-liquid ratio of 1:(30-50), performing heating and intermittent ultrasonic treatment, and performing filtration, vacuum concentration and drying sequentially to obtain a dye 2; and mixing the dye 1, the dye 2 and loess according to a mass ratio of 10:(10-20):(0.5-1) to obtain the cotton fabric yellow vegetable dye. According to the preparation method of the cotton fabric yellow vegetable dye, provided by the invention, the required plant resources are rich, the raw materials are low in price and easy to obtain, the preparation method is simple and is good in safety, and no chemical synthetic dye exists during the preparation to cause pollution to the environment, so that the preparation method can be applied to cleaning production of the printing and dyeing industry, and can be used for mass production. The prepared cotton fabric yellow vegetable dye has a certain anti-oxidation function, causes no environmental pollution, is nontoxic to human bodies, and is convenient to store and transport.

Description

technical field [0001] The invention relates to the field of printing and dyeing, in particular to a method for preparing cotton fabric yellow vegetable dye. Background technique [0002] my country's textile industry is the biggest beneficiary of China's accession to WTO. But in recent years, more and more attention has been paid to maintaining a safe ecological balance around the world. Studies have found that some synthetic dyes are irritating to human skin and even contain toxic substances. At the same time, synthetic dyes will discharge a large amount of sewage during the production process and cause Environmental hazards, in addition to the need to control the acid, alkali and dye content in the discharge, producers must also control the increasing heavy metal content (such as mercury, cadmium, copper, nickel, lead, zinc and chromium), which will increase The cost of dyeing. Concepts such as cleaner production, green products, and ecological textiles have also entere...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B61/00D06P1/34D06P3/60
CPCC09B61/00D06P1/34D06P3/60
Inventor 王海桦
Owner ZHEJIANG HAIMING IND CO LTD
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