CN103773063B - A kind of technique utilizing SHOUANHONG tree peony to prepare natural plant dye - Google Patents

Abstract

Utilize SHOUANHONG tree peony to prepare a technique for natural plant dye, relate to a kind of extracting method, comprise the following steps: the root of SHOUANHONG tree peony is cleaned, pulverizes; Tree peony root after pulverizing is soaked in the ethanolic soln of 10-30 DEG C, carries out solid-liquid separation after immersion, obtain filtrate and filter residue; Repeated by the ethanolic soln of the filter residue 10-30 of step 2 DEG C to soak and filter 2-3 time, the filtrate obtained and the filtrate of step 2 merge, and underpressure distillation, except after desolventizing, obtains red paste; By powdered for red paste lyophilize, be natural plant dye.This extraction process low-carbon environment-friendly, method are simple, can prepare tree peony SHOUANHONG dyestuff in enormous quantities.Extract under normal temperature condition, just can reach higher extraction yield.

Description

A kind of technique utilizing SHOUANHONG tree peony to prepare natural plant dye

Technical field

The present invention relates to a kind of extracting method, particularly relate to a kind of technique utilizing SHOUANHONG tree peony to prepare natural plant dye.

Background technology

After coking industry development, from byproduct coal tar, sub-argument goes out the aromatic hydroxy compounds such as benzene, naphthalene, anthracene, and for synthetic dyestuff provide raw material, fuel production develops into independently industry gradually.Within 1857, mauvein (e) puts into production, and has indicated the beginning of synthetic dyestuff industry.But dyestuff has a long history, crude substance is adopted ancient times to make dyestuff.The technology of B.C. 3000 the existing dyeing and weaving things of China.Once utilize multi mineral and plant from B.C. 20 th century of China, dye Huang, red, blue, green, purple, black.Therefore, until today dyestuffs industries development in, although synthetic dyestuff facilitate the development of textile industry, it in dyeing process and dyeing and weaving product product and natural dyestuff contrast, the harm of synthetic dyestuff day by day significantly shows the following aspects:

1. synthetic dyestuff are nearly all aromatic nitro and aminocompound and derivative thereof, and it is poisonous, carcinogenic for comprising some intermediates of synthetic dyestuff;

2. benzene feedstock, naphthalene and anthracene aromatic hydrocarbons intermediate easily cause burning and blast;

3. DYE PRODUCTION process discharge waste water is difficult to biological degradation, causes seriously pollute environment; In addition blood and neural grievous injury are easily caused to operator;

4. the dressing of synthetic dyestuff clothes causes the human body skin allergy even too high destruction skin-balance of pH by human sweat glands, directly causes the ill-health of people.

Though to sum up synthetic dyestuff goods colour is dazzled beautiful, chromatogram is complete, the low fashionable market of durable cost, and synthetic dyestuff more and more can not meet people to demand that is healthy, ecological and environmental protection on the other hand, and the mankind start to reappraise and Application and Development natural dyestuff.Natural dyestuff with good with ecotope consistency, toxicological harmless, and be applied to health-care underclothes goods, home textile product and taking the course of its own.Wherein natural dyestuff is based on vegetable dye.Although China's vegetable dye kind is a lot, but the main only kind more than ten used.What these vegetable dyes had been applied mainly contains shallow grass, bush, bluegrass, Asian puccoon, safflower, proton, sophora flower, hispid arthraxon, sandlwood and soap bucket.These dye yielding herbs are also herbal medicine simultaneously in fact, for textile dyeing after people's dress, plant pigments adsorb by human body, to people have health-care effect even some composition also have germicidal action, make vegetable dye become the advantage of Functional dye.

Have two traditional name kinds in the Luoyang Peony of ancient capital, name Yao opening chrysanthemum is yellow, and another opens pale reddish brown name Wei Zi, and most vegetable dye yellow and red self colour knit the exploitation of dyestuff.Tree peony yellow dye has been fixed as the yellow petal of Yao dyes, and the Fastness Problems having solved pollution treatment dyeing is at present expected to exploitation, but is subject to its stability and especially originates the bottleneck of in great shortage costliness, needs to continue research and development.But extract haematochrome not only to originate rareness from peony petal, be difficult to produce in enormous quantities, and haematochrome instability extremely.And existing method for extracting pigment is owing to using more organic solvent, pollute comparatively large, and extraction process is complicated.

Tradition tree peony fine work " SHOUANHONG " is red-purple, is a kind of triploid variety unique in known at present tree peony, its leaf, petiole, and stem and Huadu are red, are also the curiosas in tree peony, belong to traditional category.The growth of this kind is vigorous, and annual shoot is long, and in mulberry, abloom rate is high, and descendant is less, and root system is amaranth, is the distinguishing feature of this kind.

Summary of the invention

The technical problem to be solved in the present invention is: provide a kind of technique utilizing SHOUANHONG tree peony to prepare natural plant dye, effectively can solve existing extraction process complicated, use the problem that more organic solvent pollution is larger.

To achieve these goals, the technical solution used in the present invention is: a kind of technique utilizing SHOUANHONG tree peony to prepare natural plant dye, comprises the following steps:

Step one, the root of SHOUANHONG tree peony is clean, pulverizing;

Step 2, by pulverize after tree peony root soak in the ethanolic soln of 10-30 DEG C, carry out solid-liquid separation after immersion, obtain filtrate and filter residue;

Step 3, to be repeated by the ethanolic soln of the filter residue 10-30 of step 2 DEG C to soak and filter 2-3 time, the filtrate obtained and the filtrate of step 2 merge, and underpressure distillation obtains red paste after removing desolventizing;

Step 4, by powdered for red paste lyophilize, be natural plant dye.

In described step 2, the concentration of ethanolic soln is 60-80%.

The time of soaking in described step 2 is 24-72 hour.

In described step 4, cryodesiccated temperature is-60 DEG C.

The beneficial effect that the present invention brings is:

The present invention is based on the good looks of tree peony SHOUANHONG kind and the annual and feature that phloxin chromatic colorant is stable of its cultivation, be the extraction process that starting material develop natural plant dye tree peony SHOUANHONG with tree peony root first, prepare peony natural phant dyeing and weaving dyestuff.This extraction process low-carbon environment-friendly, method are simple, can prepare tree peony SHOUANHONG dyestuff in enormous quantities.This natural dyeing and weaving dyestuff has health care, natural dyeing and weaving good characteristics, and maintains the advantages such as natural plant pigment production environmental protection and energy saving.This root system pigment extract is easy to get than Tree Peony flower source, and especially pigment stability and colour fastness have improvement and superiority greatly, has application and becomes functional health red-purple natural fabric dyestuff with industrialization development.

The extraction of SHOUANHONG root system pigment, according to characteristic on SHOUANHONG tree peony tool genetics, is conducive to cultivation and gives birth to branch feature one year, being conducive to breeding the feasibility as industrialization raw material scale.

The innovative point of this extracting method is to emphasize to heat, and extracts under normal temperature condition, because heating makes pigmentary colours deepen on the one hand or in obvious flocks, illustrate that this pigment composition there occurs change or sex change produces precipitation; On the other hand, we study such pigment of display mainly flavonoid compound or micro-Anthocyanins; This constituents uses alcohol immersion at normal temperatures, just can reach higher extraction yield, and this constituents is in ethanol than stable in other solvent.

This root system pigment extract is high and stable more than peony flower pigment extraction yield, and colour fastness also has improvement and superiority greatly than peony flower pigment, has using value and becomes red or mauve natural fabric dyestuff with industrialization development.

Embodiment

Below in conjunction with specific embodiment, the present invention is described in further detail.

Utilize SHOUANHONG tree peony to prepare a technique for natural plant dye, comprise the following steps:

Step one, the root of SHOUANHONG tree peony is clean, pulverizing;

Step 2, by pulverize after tree peony root soak in the ethanolic soln of 10-30 DEG C, carry out solid-liquid separation after immersion, obtain filtrate and filter residue;

Step 3, to be repeated by the ethanolic soln of the filter residue 10-30 of step 2 DEG C to soak and filter 2-3 time, the filtrate obtained and the filtrate of step 2 merge, and underpressure distillation obtains red paste after removing desolventizing;

Step 4, by powdered for red paste lyophilize, be natural plant dye.

In described step 2, the concentration of ethanolic soln is 60-80%(volume percent).

The time of soaking in described step 2 is 24-72 hour.

In described step 4, cryodesiccated temperature is-60 DEG C.

performance study to tree peony SHOUANHONG coloring matter:

1. pH is on the impact of pigment stability

UV spectrum detects known, extract pigment maximum absorption wavelength and absorbancy when pH value is 1-6 to change hardly, when pH value is 7-12, maximum absorption wavelength and absorbancy all have obvious change, illustrate that this pigment solution is stablized in acid condition, unstable in neutral and alkaline conditions, possible recurring structure changes and red shift occurs.

2. illumination is on the impact of pigment stability

Preparation pigment-solvent ratio is 0.4 g:40 mL pigment solution, under illumination condition, place half a day, then measures maximum absorption wavelength and absorbancy with ultraviolet spectrophotometer.

In the constant situation of pH=5, UV spectrum detects known, and under illumination condition, pigment changes hardly, illustrates that this pigment is also stable under light illumination, does not decompose.

The research of this Pigment above-mentioned is shown, the extraction of SHOUANHONG root system pigment, according to characteristic on SHOUANHONG tree peony tool genetics, be conducive to cultivation and give birth to branch feature one year, being conducive to breeding the feasibility as industrialization raw material scale.

This root system pigment extract is high and stable more than peony flower pigment extraction yield, and colour fastness also has improvement and superiority greatly than peony flower pigment, has using value and becomes red or mauve natural fabric dyestuff with industrialization development.

embodiment one

Get fresh moutan root bark one kilogram, pulverize with 20 object pulverizers, soak at 10 DEG C with the ethanolic soln of 5L 60%, solid-liquid separation after 24 hours, obtains filter residue and filtrate.The ethanolic soln of filter residue 5L 60% repeats to soak and filter 2-3 time at 10 DEG C, the filtrate obtained and above-mentioned filtrate merge, underpressure distillation is except after desolventizing, obtain red paste, by the lyophilize in-60 DEG C of Ultralow Temperature Freezers of red paste, almost powdered after drying, be tree peony SHOUANHONG natural plant dye, the dyestuff obtained be placed in moisture eliminator and store for future use.

embodiment two

Get fresh moutan root bark one kilogram, pulverize with 20 object pulverizers, soak at 30 DEG C with the ethanolic soln of 5L 80%, solid-liquid separation after 72 hours, obtains filter residue and filtrate.The ethanolic soln of filter residue 5L 80% repeats to soak and filter 2-3 time at 30 DEG C, the filtrate obtained and above-mentioned filtrate merge, underpressure distillation is except after desolventizing, obtain red paste, by the lyophilize in-60 DEG C of Ultralow Temperature Freezers of red paste, almost powdered after drying, be tree peony SHOUANHONG natural plant dye, the dyestuff obtained be placed in moisture eliminator and store for future use.

embodiment three

Get fresh moutan root bark one kilogram, pulverize with 20 object pulverizers, soak at 15 DEG C with the ethanolic soln of 5L 73%, solid-liquid separation after 50 hours, obtains filter residue and filtrate.The ethanolic soln of filter residue 5L 73% repeats to soak and filter 2-3 time at 15 DEG C, the filtrate obtained and above-mentioned filtrate merge, underpressure distillation is except after desolventizing, obtain red paste, by the lyophilize in-60 DEG C of Ultralow Temperature Freezers of red paste, almost powdered after drying, be tree peony SHOUANHONG natural plant dye, the dyestuff obtained be placed in moisture eliminator and store for future use.

Claims (2)

1. utilize SHOUANHONG tree peony to prepare a technique for natural plant dye, it is characterized in that: comprise the following steps:

Step one, the root of SHOUANHONG tree peony is clean, pulverizing;

Step 2, by pulverize after tree peony root when not heating, soak in the normal temperature ethanolic soln of 10-30 DEG C, carry out solid-liquid separation after immersion, obtain filtrate and filter residue; Wherein, the concentration of ethanolic soln is 60-80%, and the time of immersion is 24-72 hour;

Step 3, to be repeated by the ethanolic soln of the filter residue 10-30 of step 2 DEG C to soak and filter 2-3 time, the filtrate obtained and the filtrate of step 2 merge, and underpressure distillation obtains red paste after removing desolventizing;

Step 4, by powdered for red paste lyophilize, be natural plant dye.

2. a kind of technique utilizing SHOUANHONG tree peony to prepare natural plant dye as claimed in claim 1, is characterized in that: in described step 4, cryodesiccated temperature is-60 DEG C.