Preparation method of stable-pigment Lonicera caerulea dye
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A technology of indigo fruit and dye, which is applied in the field of printing and dyeing, can solve the problems of long-term poisoning of human beings, and achieve the effect of bright and stable color and simple process
Inactive Publication Date: 2015-12-16
ZHANGJIAGANG TIANLONG KITTING GARMENTS WEAVING
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Problems solved by technology
If these wastewaters are discharged into rivers and lakes and used for farmland irrigation or as drinking water, they can cause long-term poisoning to humans, with serious consequences
Method used
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Embodiment 1
[0022] A preparation method of a pigment-stable cyanine dye, comprising the following steps:
[0023] S01, putting the indigo fruit into water, stirring and crushing to make the indigo pulp;
[0024] S02, filtering the indigo pulp for the first time, collecting filter residue A and filtrate A, and placing them separately;
[0025] S03, putting the filter residue A into the extraction device, adding absolute ethanol and stirring, performing a second filtration after stirring, discarding the filter residue B, and collecting the filtrate B;
[0026] S04, the filtrate A is mixed with absolute ethanol, the mixed solution obtained after mixing is heated and stirred evenly, and then left to stand for 8-24 hours, the mixed solution is filtered for the third time, and the filter residue C is discarded, and the filtrate is collected C;
[0027] S05, mixing the filtrate B and the filtrate C to make a mixed liquid 2, recovering the ethanol in the mixed liquid 2 with a rotary evaporator,...
Embodiment 2
[0035] A preparation method of a pigment-stable cyanine dye, comprising the following steps:
[0036] S01, putting the indigo fruit into water, stirring and crushing to make the indigo pulp;
[0037] S02, filtering the indigo pulp for the first time, collecting filter residue A and filtrate A, and placing them separately;
[0038] S03, putting the filter residue A into the extraction device, adding absolute ethanol and stirring, performing a second filtration after stirring, discarding the filter residue B, and collecting the filtrate B;
[0039] S04, the filtrate A is mixed with absolute ethanol, the mixed solution obtained after mixing is heated and stirred evenly, and then left to stand for 8-24 hours, the mixed solution is filtered for the third time, and the filter residue C is discarded, and the filtrate is collected C;
[0040] S05, mixing the filtrate B and the filtrate C to make a mixed liquid 2, recovering the ethanol in the mixed liquid 2 with a rotary evaporator,...
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Abstract
The invention discloses a preparation method of a stable-pigment Lonicera caerulea dye, which comprises the following steps: adding Lonicera caerulea into water to prepare a Lonicera caerulea pulp; carrying out primary filtration on the Lonicera caerulea pulp, and collecting a filter residue A and a filtrate A; putting the filter residue A into an extraction device, adding anhydrous ethanol, stirring, carrying out secondary filtration, and collecting a filtrate B; mixing the filtrate A with anhydrous ethanol to obtain a mixed solution 1, heating and evenly stirring the mixed solution 1, standing for 8-24 hours, carrying out tertiary filtration on the mixed solution, and collecting a filtrate C; mixing the filtrate B with the filtrate C to prepare a mixed solution 2, evaporating to remove ethanol in the mixed solution 2, collecting the mixture after evaporation, dissolving the mixture to prepare a dye concentrated solution, adding citric acid and tartaric acid into the dye concentrated solution, and uniformly mixing. The Lonicera caerulea wood dye prepared by the method has the advantages of bright and stable color, high safety and no toxicity, and is suitable for dyeing textiles.
Description
technical field [0001] The invention relates to a preparation method of a pigment-stabilized indigo dye, belonging to the technical field of printing and dyeing. Background technique [0002] The raw materials of synthetic dyes commonly used in the printing and dyeing industry are aromatic hydrocarbon chemical products, so most of the synthetic dyes have varying degrees of impact and harm on the human body. These products can decompose more than 20 kinds of carcinogenic or allergic substances during the production process. The banned azo compounds can dissociate heavy metals such as lead (Pb), chromium (Cr), cadmium (Cd), cobalt (Co), copper (Cu), nickel (Ni) and mercury (Hg) under certain conditions ion. Even the synthetic dyes currently allowed to be used are not necessarily safe dyes, which more or less have certain effects and hazards on the human body, especially children's clothing and intimate textiles. At this stage, the so-called environmentally friendly synthetic...
Claims
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Application Information
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