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Preparation method and application of Korean pine bark natural dye

A technology of natural dyes and pine bark, applied in the field of natural dyes, can solve the problems that have not been reported, and achieve the effect of broad market prospects, good color fastness, and simple extraction process

Inactive Publication Date: 2012-10-24
新疆林科院经济林研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the research on pine bark is only used in a small amount for the extraction of resin and turpentine. There are no reports at home and abroad about the preparation method of pine bark natural dyes and the research on leather dyeing technology.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] a, choose the Siberian Korean pine that grows naturally, is mature, the trunk is 1 meter above the ground, and the thickness of the bark is 10 centimeters. Cut off the bark from the trunk, remove the outer skin and chop into small pieces that are 5 centimeters long and 1 centimeter thick. Put 1 kg of chopped pine bark into an enamel pot by decocting, add 10 kg of water, and boil for 2-3 hours on a warm fire to obtain a brownish-red liquid;

[0014] b. Filter the liquid in step a to obtain 0.5-0.6 liter of concentrated red pine bark natural dye;

[0015] The purposes of the red pine bark natural dyestuff obtained by this method in the preparation of leather dyeing agent, concrete operation is:

[0016] Put the cooked leather flatly in a cool and flat place, then apply the natural dye of red pine bark evenly on the leather for 3 times, dry in the shade for 3-6 hours, hang the leather on the wooden board when it is 90% dry, and gently wipe it with a dull knife After hangi...

Embodiment 2

[0018] a. Choose a naturally grown, mature Siberian red pine whose trunk is 1.2 meters above the ground and whose bark is 12 centimeters thick. Peel off the bark from the trunk, remove the outer skin and chop into small pieces that are 6 centimeters long and 2 centimeters thick. Put 2 kilograms of chopped pine bark into an enamel pot by decocting, add 20 kilograms of water, and boil for 4 hours with a warm fire to obtain a brownish-red liquid;

[0019] b. Filter the liquid in step a to obtain 1-1.1 liters of concentrated red pine bark natural dye;

[0020] The purposes of the red pine bark natural dyestuff obtained by this method in the preparation of leather dyeing agent, concrete operation is:

[0021] Put the cooked leather flatly in a cool and flat place, then apply the natural dye of red pine bark evenly on the leather twice, dry in the shade for 2-5 hours, hang the leather on the wooden board when it is 90% dry, and gently wipe it with a blunt knife After hanging off th...

Embodiment 3

[0023] a. Choose a Siberian Korean pine that grows naturally, mature, with a trunk 1.5 meters above the ground and a bark thickness of 15 centimeters. Peel off the bark from the trunk, remove the outer skin and chop it into 5-6 centimeters long and 1-2 centimeters thick Put 3 kilograms of chopped pine bark into an enamel pot by decocting, add 30 kilograms of water, and boil for 4-5 hours with a warm fire to obtain a brownish-red liquid;

[0024] b. Filter the liquid in step a to obtain 1.5-1.6 liters of concentrated red pine bark natural dye;

[0025] The purposes of the red pine bark natural dyestuff obtained by this method in the preparation of leather dyeing agent, concrete operation is:

[0026] Put the cooked leather flatly in a cool and flat place, then apply the natural dye of red pine bark evenly on the leather once, dry in the shade for 2-3 hours, hang the leather on the wooden board when it is 90% dry, and gently wipe it with a blunt knife After hanging off the exce...

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PUM

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Abstract

The invention relates to a preparation method and application of Korean pine bark natural dye. The method comprises the steps of: chopping Korean pine bark into small blocks, placing in an enamel pan, adding water, cooking with mild fire to obtain redbrown liquid, filtering the liquid to obtain the Korean pine bark natural dye. Research trial shows that the Korean pine bark natural dye obtained by the method has excellent dyeing performance on leather, different dark and light effects can be obtained by different dyeing times, the color fastness is excellent, the dyed leather is mellow is color, safe to wear, good in ecological environment compatibility and biodegradable, and does not cause carcinogenic action and teratogenesis or anaphylaxis; and furthermore, by utilizing Korean pine bark to prepare the natural dye, the price is low, natural resources are sufficiently utilized, and the market prospect is fully wide.

Description

technical field [0001] The invention relates to the field of natural dyes, in particular to a method for preparing a natural dye from red pine bark and its use for dyeing leather. Background technique [0002] Natural dyes are extracted from plant flowers, fruits, leaves, bark, roots, stems or animal secretions, minerals, non-toxic and harmless, will not cause environmental pollution during the preparation process, and have good Biodegradability and environmental compatibility. In addition to dyeing, some natural dyes also have special fragrance and certain nutritional and pharmacological health functions. About 1500 BC, ancient Egyptian merchants used natural extracts and wine to improve the color of candies. "Qi Min Yao Shu" written by Jia Sixie in the late Northern Song Dynasty also specifically mentioned that pigments were extracted from plants in ancient times and used as dyes. The ancient Kazakh people also used animal fur to make clothing in nomadic life. The surfa...

Claims

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Application Information

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IPC IPC(8): C09B61/00D06P1/34D06P3/32
Inventor 古丽江・许库尔汗迟那尔・哈盘阿依恒・曲库尔汗
Owner 新疆林科院经济林研究所
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