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Technology for extracting pigment from plant petals for preparing plant dyes

A technology of plant petals and plant dyes, which is applied in the field of preparation of plant dyes, can solve the problems of affecting the land, water sources and atmosphere in surrounding areas, the impact of synthetic dye prospects, and withdrawing from the historical stage, so as to shorten the preparation time, reduce the cost and reduce the waste of raw materials Effect

Inactive Publication Date: 2015-12-16
ZHANGJIAGANG TIANLONG KITTING GARMENTS WEAVING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once handled improperly, it will directly affect the land, water and atmosphere in the surrounding area, thus causing poisonous
It can be seen that the prospect of synthetic dyes will be seriously affected, and even withdraw from the stage of history

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A process for preparing plant dyes by extracting pigments from plant petals, comprising the following steps.

[0029] 1) Mixing: Mix the 30% alcohol solution with the petals of wisteria, morning glory, rose, rose, or peony in a ratio of 1:3 by mass, then pour it into a blender and stir for 5 minutes to obtain a cloudy solution. The speed of the blender is 500r / min.

[0030] 2) One-step extraction: warm up the cloudy solution in the mixer to 40°C and extract for 0.5h at a rotational speed of 30r / min to obtain a one-step extract.

[0031] 3) One-step filtration: The one-step extract is subjected to ultrafiltration to remove impurities to obtain a one-step filtrate and a one-step filter residue.

[0032] 4) Two-step extraction: Mix the alcohol solution with a concentration of 30% and the first-step filter residue in a ratio of 1:4 by mass, pour it into a blender, heat it to 50°C, and extract for 1 hour at a speed of 20r / min to obtain two-step extraction.

[0033] 5) Tw...

Embodiment 2

[0038] A process for preparing plant dyes by extracting pigments from plant petals, comprising the following steps.

[0039] 1) Mixing: Mix the alcohol solution with a concentration of 50% and petals of wisteria, morning glory, rose, rose, or peony in a ratio of 1:8 by mass, then pour it into a blender and stir for 10 minutes to obtain a cloudy solution. The speed of the blender is 1000r / min.

[0040] 2) One-step extraction: heat up the cloudy solution in the mixer to 60°C and extract for 1.5 hours at a rotation speed of 60r / min to obtain a one-step extract.

[0041] 3) One-step filtration: The one-step extract is subjected to ultrafiltration to remove impurities to obtain a one-step filtrate and a one-step filter residue.

[0042] 4) Two-step extraction: Mix the alcohol solution with a concentration of 50% and the first-step filter residue in a ratio of 1:9 by mass, pour it into a blender, heat it to 70°C, and extract it at a speed of 40r / min for 2 hours to obtain two-step...

Embodiment 3

[0048] A process for preparing plant dyes by extracting pigments from plant petals, comprising the following steps.

[0049] 1) Mixing: Mix the alcohol solution with a concentration of 40% and the petals of wisteria, morning glory, rose, rose, or peony in a ratio of 1:5.5 by mass, then pour it into a blender and stir for 7.5 minutes to obtain a cloudy solution. The speed of the blender is 750r / min.

[0050] 2) One-step extraction: warm up the cloudy solution in the mixer to 50°C and extract for 1 hour at a rotation speed of 45r / min to obtain a one-step extract.

[0051] 3) One-step filtration: The one-step extract is subjected to ultrafiltration to remove impurities to obtain a one-step filtrate and a one-step filter residue.

[0052] 4) Two-step extraction: Mix the alcohol solution with a concentration of 40% and the first-step filter residue in a ratio of 1:6.5 by mass, pour it into a blender, heat it to 60°C, and extract it for 1.5 hours at a speed of 30r / min. A two-step ...

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Abstract

The invention discloses a technology for extracting pigment from plant petals for preparing plant dyes. The technology is characterized by comprising the following steps of 1, mixing, 2, first-step extraction, 3, first-step filtering, 4, second-step extraction, 5, second-step filtering, 6, distillation, 7, drying and 8, smashing. The technology has the advantages that adopted raw materials and solvents contain no hazardous substances and will not pollute the environment, the solvents can be recycled and repeatedly utilized, and the requirement for safe and environment-friendly production is met. Due to the fact that two-time extraction and filtering are performed, pigment components in plants can be dissolved to the maximum extent, a high-concentration extract is obtained, the extraction rate is greatly increased, and raw material waste is reduced. The raw materials needed for preparing the dyes are common, single-color and rich plant petals, the plant petals can be obtained through large-area planting and can also be obtained by purchasing from farmer households, sources are wide, and the phenomenon that production cannot be performed due to raw material lack is avoided.

Description

technical field [0001] The invention belongs to the technical field of printing and dyeing, and in particular relates to a process for preparing plant dyes by extracting pigments from plant petals. Background technique [0002] In the textile printing and dyeing industry, dyes are one of the important raw materials, and their quality and dyeing process will directly affect the coloring effect of finished fabrics. The purchase of dyes has also become a larger expenditure in the printing and dyeing process. Synthetic dyes are widely used in the printing and dyeing industry because of their advantages of various colors. However, since synthetic dyes are prepared through a series of processes using chemical raw materials, they inevitably contain a certain amount of harmful substances. The finished fabrics printed and dyed with synthetic dyes may produce harmful substances in certain environments, such as heavy metal ions or other harmful organic substances, which will cause di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00
Inventor 钱科
Owner ZHANGJIAGANG TIANLONG KITTING GARMENTS WEAVING
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