CN106245386A - A kind of colorful silk protein body through natural dye dying and preparation method thereof - Google Patents

A kind of colorful silk protein body through natural dye dying and preparation method thereof Download PDF

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Publication number
CN106245386A
CN106245386A CN201610841733.7A CN201610841733A CN106245386A CN 106245386 A CN106245386 A CN 106245386A CN 201610841733 A CN201610841733 A CN 201610841733A CN 106245386 A CN106245386 A CN 106245386A
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fibroin
natural dye
silk protein
protein body
granule
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CN106245386B (en
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王文庆
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Hunan blue print culture development Co., Ltd.
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Dongguan Lianzhou Intellectual Property Operation and Management Co Ltd
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/0004—General aspects of dyeing
    • D06P1/0016—Dye baths containing a dyeing agent in a special form such as for instance in melted or solid form, as a floating film or gel, spray or aerosol, or atomised dyes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/34—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using natural dyestuffs
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/46—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing natural macromolecular substances or derivatives thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/46—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing natural macromolecular substances or derivatives thereof
    • D06P1/48—Derivatives of carbohydrates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
    • D06P1/651—Compounds without nitrogen
    • D06P1/65106—Oxygen-containing compounds
    • D06P1/65118—Compounds containing hydroxyl groups

Abstract

The present invention provides the preparation method of a kind of colorful silk protein body through natural dye dying, comprises the following steps: after silk fiber or Bombyx bombycis are taken out impurity, and degumming is dissolved in ternary solution, then through diafiltration, is concentrated to give fibroin solutions；Fibroin solutions is placed in spray-drying installation, obtains fibroin granule through atomized spray；Red pigment and purpurin are added in deionized water, stirring, add lignosulfonates and chitosan aqueous solution, stirring, obtain mixed dye, mixed dye atomization is formed dyestuff spraying；Being exposed to by fibroin granule in dyestuff spraying, vibration stands, and is re-exposed in alcohol steam, stands, and takes out, and volatilization, obtains the colorful silk protein body through natural dye dying naturally.

Description

A kind of colorful silk protein body through natural dye dying and preparation method thereof
Technical field
The invention belongs to textile material technical field, be specifically related to a kind of colorful silk albumen through natural dye dying Grain and preparation method thereof.
Background technology
The fiber that pro-skin performance that silkworm silk is well recognized as is good, because containing aminoacetic acid, alanine, serine etc. in silkworm silk, because of This fibroin has good biocompatibility and degradability.Along with constantly bringing forth new ideas of science and technology, it is former with fibroin The material of material also emerges in an endless stream, such as film, porous material, non-woven fabrics, hydrogel, Nano microsphere etc..With fibroin for raw material system The advantages such as it is big that standby microsphere has surface area, good biocompatibility, biodegradable, and fibroin adds other functions Composition can form the Multifunctional silk protein bodies such as microcapsule, complex microsphere, magnetic microsphere, conductive micro-balloons.
A kind of ion induction disclosed in Chinese patent CN 103554520B prepares the side of tussah silk fibroin nano-particle Method, induces in tussah silk fibroin solution red addition bivalence or Tricationic, then processes through ultrasonic aging, obtain nanometer Grain suspension, is performing centrifugal separation on processing with lyophilization obtaining tussah silk fibroin nano-particle.Chinese patent CN A kind of Wild antheraea pernyi silk fibroin microsphere and preparation method thereof disclosed in 102977381A, adds after tussah silk degumming, dissolving dialysis Citric acid or acetate buffer solution, obtain tussah silk peptide microsphere suspension through sonic oscillation and stir process, then be performing centrifugal separation on, Lyophilization obtains Wild antheraea pernyi silk fibroin microsphere.Disclosed in Chinese patent CN 103965310A a kind of prepare fibroin microsphere from Assemble method, is added dropwise over aqueous isopropanol after being dissolved by natural silk degumming, and agitated lyophilization becomes powder, obtains fibroin micro- Ball.From above-mentioned prior art, processed by the fibroin after silkworm silk is carried out degumming dissolving, silkworm silk can be obtained Protein body.But the fibroin granule of preparation is all precursor color at present, and grain color is the most dull, and because silkworm silk Unobtrusively, perusal is the most difficult for the color of protein body, needs by high-tech observation of use instrument more, and difficulty is bigger.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of colorful silk protein body through natural dye dying and Preparation method, is spray-dried fibroin and forms submicron particles, is successively exposed to the steam containing dyestuff and neutralizes containing ethanol Steam in, first fibroin granule is dyeed, then fibroin granule is carried out film-forming arrangement, obtain colour Fibroin granule.The method preparation method is simple, and the fibroin granule of preparation is rounded, color be pale red to purple, Bright in luster, and be to dye through vegetable colour, environmental protection, do not affect the pro-skin performance of fibroin granule.
For solving above-mentioned technical problem, the technical scheme is that
A kind of colorful silk protein body through natural dye dying, the described colorful silk albumen through natural dye dying Granule includes that fibroin granule, natural dye and auxiliary agent, described fibroin granule are submicron particles, described natural dye Material is plant source dyestuff, and described auxiliary agent is dispersant, adhesive, film former and solvent, and described fibroin granule has spray dried Prepared by drying method, described plant source dyestuff is red pigment and purpurin, and described dispersant is lignosulfonates, described adhesive Being ethanol for chitosan, film former, described solvent is deionized water, the described colorful silk protein body through natural dye dying For pink, red, piece redness or purple.
Preferred as technique scheme, described fibroin in the colorful silk protein body of natural dye dying Mass fraction be 80-99%.
The present invention also provides for the preparation method of a kind of colorful silk protein body through natural dye dying, including following step Rapid:
(1) after silk fiber or Bombyx bombycis being taken out impurity, degumming, at 60-70 DEG C, it is placed in ternary solution dissolving, then Through diafiltration, it is concentrated to give fibroin solutions；
(2) fibroin solutions prepared by step (1) is placed in spray-drying installation, obtains silkworm silk egg through atomized spray White granule；
(3) red pigment extracted from natural plants and purpurin are added in deionized water, stir, add wood Mahogany sulfonate and chitosan aqueous solution, be sufficiently stirred for, and obtains mixed dye, is placed in atomising device by mixed dye, is formed Dyestuff is sprayed；
(4) fibroin granule prepared by step (2) is exposed in dyestuff spraying prepared by step (3), vibration, quiet Putting, be re-exposed in alcohol steam, stand, take out, volatilization, obtains the colorful silk albumen through natural dye dying naturally Grain.
Preferred as technique scheme, in described step (1), in ternary solution calcium chloride, water and ethanol mole Ratio is 1:8:2.
Preferred as technique scheme, in described step (1), the mass fraction of fibroin solutions is 5-8%, silkworm The molecular weight of fibroin is 50-200KDa.
Preferred as technique scheme, in described step (2), the condition of atomized spray is: flow velocity 10-15g/min, Air inlet temperature is 80-100 DEG C, and atomization air pressure is 0.3-0.5MPa.
Preferred as technique scheme, in described step (3), the component in mixed dye, by weight, including Red pigment 5-10 part, purpurin 5-10 part, deionized water 50-80 part, lignosulfonates 5-8 part and chitosan 12-15 part.
Preferred as technique scheme, in described step (3), the molecular weight of chitosan is 2000-20000.
Preferred as technique scheme, in described step (4), frequency of oscillation is 5-20Hz, and duration of oscillation is 60- 90min, the time of standing is 30-90min.
Preferred as technique scheme, in described step (4), in alcohol steam, ethanol is 1 with the volume ratio of water: 0.5-1。
Compared with prior art, the method have the advantages that
(1) the colorful silk protein body through natural dye dying prepared by the present invention be mainly composed of fibroin , fibroin granule is prepared via spray drying process, and preparation method is simple, and the particle diameter of fibroin granule is submicron Level, moderate in grain size, naked eyes are visible, and granule spherical regular be circular, in fibroin granule, fibroin macromole divides Sub-conformation is mainly random coil and αhelix, and therefore the dilatancy of fibroin granule is good, natural dye after being conducive to Dyeing arrange.
(2) during the colorful silk protein body through natural dye dying prepared by the present invention is first exposed to dyestuff spraying, dye Containing natural dye, dispersant, chitosan and deionized water in material spraying, deionized water is the main component of dyestuff spraying, can Fibroin granule to be carried out profitization process, promote fibroin particle surface and the expansion in internal macromole gap, have Being beneficial to the infiltration of natural dye, possibly together with chitosan in dyestuff spraying, chitosan molecule contains various active group, energy and silkworm silk Combine between macromole and generate chemical bond and hydrogen bond, and part natural dye can be coated with wherein, prevent the stream of natural dye Lose, increase the combination dynamics of natural dye and fibroin, and the existence of chitosan can increase dyestuff dye level and Dyeing uniformity, improves Color.
(3) the colorful silk protein body through natural dye dying prepared by the present invention is last also at alcohol steam Reason, alcohol steam can promote fibroin granule film forming, promotes that in fibroin granule, silkworm silk macromolecular conformation is to β-folding Stack structure changes, and stablizes the structure of fibroin granule, the utilization of the colorful silk protein body after being conducive to.
(4) method of the colorful silk protein body through natural dye dying prepared by the present invention is simple, and operation is convenient, can Control property is strong, it is simple to producing in a large number, the fibroin grain color of preparation is bright-coloured, and naked eyes are visible, convenient and practical, and the dye used Chromogen material is all Green Product, pro-skin performance the making without impact, beneficially expansion fibroin on fibroin granule Use scope.
Detailed description of the invention
The present invention is described in detail, in illustrative examples and the explanation of this present invention below in conjunction with specific embodiment It is used for explaining the present invention, but not as a limitation of the invention.
Embodiment 1:
(1), after silk fiber or Bombyx bombycis being taken out impurity, degumming is boiled, then at 60 DEG C through the sodium carbonate liquor of 5g/l Under, it is placed in the ternary solution that mol ratio is 1:8:2 of calcium chloride, water and ethanol dissolving completely, then through dialysis to fibroin Molecular weight be 50-200KDa, filter, be concentrated to give the fibroin solutions that mass fraction is 5%.
(2) fibroin solutions is placed in spray-drying installation, with the flow velocity of 10g/min, the air inlet temperature of 80 DEG C, Under 0.3MPa atomization air pressure, obtain fibroin granule through atomized spray.
(3) red pigment extracted from natural plants and purpurin are added in deionized water, stir, add wood Mahogany sulfonate and molecular weight are the chitosan aqueous solution of 2000-20000, are sufficiently stirred for, obtain mixed dye, by mixed dye Being placed in atomising device, form dyestuff spraying, the component in mixed dye, by weight, including red pigment 5 parts, purpurin 5 Part, deionized water 50 parts, lignosulfonates 5 parts and chitosan 12 parts.
(4) fibroin granule is exposed in dyestuff spraying, with 5Hz hunting of frequency 60min, stands 30-90min, then Being exposed in the alcohol steam that volume ratio is 1:0.5 of ethanol and water, stand 30min, take out, volatilization, obtains through sky naturally So colorful silk protein body of dyeing.
Embodiment 2:
(1), after silk fiber or Bombyx bombycis being taken out impurity, degumming is boiled, then at 70 DEG C through the sodium carbonate liquor of 5g/l Under, it is placed in the ternary solution that mol ratio is 1:8:2 of calcium chloride, water and ethanol dissolving completely, then through dialysis to fibroin Molecular weight be 50-200KDa, filter, be concentrated to give the fibroin solutions that mass fraction is 8%.
(2) fibroin solutions is placed in spray-drying installation, with the flow velocity of 15g/min, the air inlet temperature of 100 DEG C Degree, under 0.5MPa atomization air pressure, obtains fibroin granule through atomized spray.
(3) red pigment extracted from natural plants and purpurin are added in deionized water, stir, add wood Mahogany sulfonate and molecular weight are the chitosan aqueous solution of 2000-20000, are sufficiently stirred for, obtain mixed dye, by mixed dye Being placed in atomising device, form dyestuff spraying, the component in mixed dye, by weight, including red pigment 10 parts, purpurin 10 parts, deionized water 80 parts, lignosulfonates 8 parts and chitosan 15 parts.
(4) fibroin granule is exposed in dyestuff spraying, with 20Hz hunting of frequency 690min, standing 90min, more cruelly Being exposed in the alcohol steam that volume ratio is 1:1 of ethanol and water, stand 90min, take out, volatilization, obtains through natural dye naturally The colorful silk protein body of material dyeing.
Embodiment 3:
(1), after silk fiber or Bombyx bombycis being taken out impurity, degumming is boiled, then at 65 DEG C through the sodium carbonate liquor of 5g/l Under, it is placed in the ternary solution that mol ratio is 1:8:2 of calcium chloride, water and ethanol dissolving completely, then through dialysis to fibroin Molecular weight be 50-200KDa, filter, be concentrated to give the fibroin solutions that mass fraction is 6%.
(2) fibroin solutions is placed in spray-drying installation, with the flow velocity of 12g/min, the air inlet temperature of 90 DEG C, Under 0.4MPa atomization air pressure, obtain fibroin granule through atomized spray.
(3) red pigment extracted from natural plants and purpurin are added in deionized water, stir, add wood Mahogany sulfonate and molecular weight are the chitosan aqueous solution of 2000-20000, are sufficiently stirred for, obtain mixed dye, by mixed dye Being placed in atomising device, form dyestuff spraying, the component in mixed dye, by weight, including red pigment 8 parts, purpurin 6 Part, deionized water 60 parts, lignosulfonates 6 parts and chitosan 13 parts.
(4) fibroin granule is exposed in dyestuff spraying, with 10Hz hunting of frequency 70min, standing 60min, more cruelly Being exposed in the alcohol steam that volume ratio is 1:0.6 of ethanol and water, stand 60min, take out, volatilization, obtains through natural naturally The colorful silk protein body of dyeing.
Embodiment 4:
(1), after silk fiber or Bombyx bombycis being taken out impurity, degumming is boiled, then at 70 DEG C through the sodium carbonate liquor of 5g/l Under, it is placed in the ternary solution that mol ratio is 1:8:2 of calcium chloride, water and ethanol dissolving completely, then through dialysis to fibroin Molecular weight be 50-200KDa, filter, be concentrated to give the fibroin solutions that mass fraction is 6%.
(2) fibroin solutions is placed in spray-drying installation, with the flow velocity of 13g/min, the air inlet temperature of 90 DEG C, Under 0.35MPa atomization air pressure, obtain fibroin granule through atomized spray.
(3) red pigment extracted from natural plants and purpurin are added in deionized water, stir, add wood Mahogany sulfonate and molecular weight are the chitosan aqueous solution of 2000-20000, are sufficiently stirred for, obtain mixed dye, by mixed dye Being placed in atomising device, form dyestuff spraying, the component in mixed dye, by weight, including red pigment 8 parts, purpurin 6 Part, deionized water 50 parts, lignosulfonates 5 parts and chitosan 15 parts.
(4) fibroin granule is exposed in dyestuff spraying, with 8Hz hunting of frequency 80min, stands 60min, then expose In the ethanol alcohol steam that volume ratio is 1:1 with water, standing 50min, take out, volatilization, obtains through natural dye naturally The colorful silk protein body of dyeing.
Embodiment 5:
(1), after silk fiber or Bombyx bombycis being taken out impurity, degumming is boiled, then at 70 DEG C through the sodium carbonate liquor of 5g/l Under, it is placed in the ternary solution that mol ratio is 1:8:2 of calcium chloride, water and ethanol dissolving completely, then through dialysis to fibroin Molecular weight be 150KDa, filter, be concentrated to give the fibroin solutions that mass fraction is 7.5%.
(2) fibroin solutions is placed in spray-drying installation, with the flow velocity of 113g/min, the air inlet temperature of 95 DEG C Degree, under 0.45MPa atomization air pressure, obtains fibroin granule through atomized spray.
(3) red pigment extracted from natural plants and purpurin are added in deionized water, stir, add wood Mahogany sulfonate and molecular weight are the chitosan aqueous solution of 2000-20000, are sufficiently stirred for, obtain mixed dye, by mixed dye Being placed in atomising device, form dyestuff spraying, the component in mixed dye, by weight, including red pigment 10 parts, purpurin 5 parts, deionized water 70 parts, lignosulfonates 6 parts and chitosan 13 parts.
(4) fibroin granule is exposed in dyestuff spraying, with 8Hz hunting of frequency 60min, stands 90min, then expose In the ethanol alcohol steam that volume ratio is 1:0.6 with water, standing 60min, take out, volatilization, obtains through natural dye naturally The colorful silk protein body of material dyeing.
Embodiment 6:
(1), after silk fiber or Bombyx bombycis being taken out impurity, degumming is boiled, then at 70 DEG C through the sodium carbonate liquor of 5g/l Under, it is placed in the ternary solution that mol ratio is 1:8:2 of calcium chloride, water and ethanol dissolving completely, then through dialysis to fibroin Molecular weight be 50-200KDa, filter, be concentrated to give the fibroin solutions that mass fraction is 5.5%.
(2) fibroin solutions is placed in spray-drying installation, with the flow velocity of 15g/min, the air inlet temperature of 80 DEG C, Under 0.5MPa atomization air pressure, obtain fibroin granule through atomized spray.
(3) red pigment extracted from natural plants and purpurin are added in deionized water, stir, add wood Mahogany sulfonate and molecular weight are the chitosan aqueous solution of 2000-20000, are sufficiently stirred for, obtain mixed dye, by mixed dye Being placed in atomising device, form dyestuff spraying, the component in mixed dye, by weight, including red pigment 5 parts, purpurin 10 parts, deionized water 80 parts, lignosulfonates 5 parts and chitosan 15 parts.
(4) fibroin granule is exposed in dyestuff spraying, with 12Hz hunting of frequency 60min, standing 60min, more cruelly Being exposed in the alcohol steam that volume ratio is 1:0.7 of ethanol and water, stand 60min, take out, volatilization, obtains through natural naturally The colorful silk protein body of dyeing.
After testing, the particle diameter of the colorful silk protein body through natural dye dying prepared by embodiment 1-6 and color Result is as follows:
As seen from the above table, the particle diameter through the colorful silk protein body of natural dye dying that prepared by the present invention is micron Level, productivity is high, and color takes on a red color to purple, and after natural dye dying, dye-uptake is good, and color is deep.
The principle of above-described embodiment only illustrative present invention and effect thereof, not for limiting the present invention.Any ripe Above-described embodiment all can be modified under the spirit and the scope of the present invention or change by the personage knowing this technology.Cause This, have usually intellectual such as complete with institute under technological thought without departing from disclosed spirit in art All equivalences become are modified or change, and must be contained by the claim of the present invention.

Claims (10)

1. the colorful silk protein body through natural dye dying, it is characterised in that: the described coloured silk through natural dye dying Color fibroin granule includes that fibroin granule, natural dye and auxiliary agent, described fibroin granule are submicron particles, Described natural dye is plant source dyestuff, and described auxiliary agent is dispersant, adhesive, film former and solvent, described fibroin Grain has spray drying process to prepare, and described plant source dyestuff is red pigment and purpurin, and described dispersant is lignosulfonates, Described adhesive be chitosan, film former be ethanol, described solvent is deionized water, the described colored silkworm through natural dye dying Fibroin granule is pink, red, piece redness or purple.
A kind of colorful silk protein body through natural dye dying the most according to claim 1, it is characterised in that: described In the colorful silk protein body of natural dye dying, the mass fraction of fibroin is 80-99%.
3. the preparation method through the colorful silk protein body of natural dye dying, it is characterised in that comprise the following steps:
(1) after silk fiber or Bombyx bombycis being taken out impurity, degumming, at 60-70 DEG C, it is placed in ternary solution dissolving, then through thoroughly Analysis is filtered, and is concentrated to give fibroin solutions；
(2) fibroin solutions prepared by step (1) is placed in spray-drying installation, obtains fibroin through atomized spray Grain；
(3) red pigment extracted from natural plants and purpurin are added in deionized water, stir, add lignin Sulfonate and chitosan aqueous solution, be sufficiently stirred for, and obtains mixed dye, is placed in atomising device by mixed dye, forms dyestuff Spraying；
(4) fibroin granule prepared by step (2) is exposed in dyestuff spraying prepared by step (3), vibration, stands, then Being exposed in alcohol steam, stand, take out, volatilization, obtains the colorful silk protein body through natural dye dying naturally.
The preparation method of a kind of colorful silk protein body through natural dye dying the most according to claim 3, it is special Levying and be: in described step (1), in ternary solution, the mol ratio of calcium chloride, water and ethanol is 1:8:2.
The preparation method of a kind of colorful silk protein body through natural dye dying the most according to claim 3, it is special Levying and be: in described step (1), the mass fraction of fibroin solutions is 5-8%, and the molecular weight of fibroin is 50- 200KDa。
The preparation method of a kind of colorful silk protein body through natural dye dying the most according to claim 3, it is special Levying and be: in described step (2), the condition of atomized spray is: flow velocity 10-15g/min, and air inlet temperature is 80-100 DEG C, mist Activating QI pressure is 0.3-0.5MPa.
The preparation method of a kind of colorful silk protein body through natural dye dying the most according to claim 3, it is special Levying and be: in described step (3), the component in mixed dye, by weight, including red pigment 5-10 part, purpurin 5-10 Part, deionized water 50-80 part, lignosulfonates 5-8 part and chitosan 12-15 part.
The preparation method of a kind of colorful silk protein body through natural dye dying the most according to claim 3, it is special Levying and be: in described step (3), the molecular weight of chitosan is 2000-20000.
The preparation method of a kind of colorful silk protein body through natural dye dying the most according to claim 3, it is special Levying and be: in described step (4), frequency of oscillation is 5-20Hz, and duration of oscillation is 60-90min, and the time of standing is 30- 90min。
The preparation method of a kind of colorful silk protein body through natural dye dying the most according to claim 3, it is special Levying and be: in described step (4), in alcohol steam, ethanol is 1:0.5-1 with the volume ratio of water.
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Publication number Priority date Publication date Assignee Title
CN107904689A (en) * 2017-12-05 2018-04-13 中原工学院 A kind of preparation method of natural pigment colored fibre

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