CN104987775B - The method for preparing original liquid coloring coated pigment mill base using reactive emulsifier - Google Patents

The method for preparing original liquid coloring coated pigment mill base using reactive emulsifier Download PDF

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CN104987775B
CN104987775B CN201510420675.6A CN201510420675A CN104987775B CN 104987775 B CN104987775 B CN 104987775B CN 201510420675 A CN201510420675 A CN 201510420675A CN 104987775 B CN104987775 B CN 104987775B
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mill base
coated pigment
pigment
original liquid
liquid coloring
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CN104987775A (en
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杜长森
梁栋
许丹
梅成国
伍金平
周华
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SUZHOU SHIMING TECHNOLOGY Co Ltd
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Abstract

The invention discloses a kind of methods preparing original liquid coloring coated pigment mill base using reactive emulsifier, this method selects organic pigment, dispersant, the reactive emulsifier and deionized water of dimeric dibasic acid structure containing unsaturated double-bond prepare ultrafine organic paint dispersion by grinding, then comonomer and initiator are added into ultrafine organic paint water-borne dispersions, after high speed emulsifies, heating causes polymerization, complete cladding of the polymer to pigment, after adding functional aid into mill base again, it can be obtained the coated pigment mill base, the mill base can also select addition pH adjusting agent and antimildew disinfectant according to actual needs.The coated pigment mill base prepared in this way is used for viscose rayon original liquid coloring, has the series of advantages such as small particle diameter distribution, good spinnability, pigment resistance to migration height.

Description

The method for preparing original liquid coloring coated pigment mill base using reactive emulsifier
Technical field
The present invention relates to a kind of preparation methods of dispersible pigment color paste more particularly to a kind of use reactive emulsifier to prepare stoste The method of coloring coated pigment mill base, belongs to technical field of fine.
Background technology
Pigment is the second largest tingle body that dyestuff is only second in dyeing, and compared with dyestuff, pigment has significant Energy saving and environment-friendly advantage, has a extensive future.But the organic pigment of commercialization is mainly with powder morphologies such as condensate, aggregations In the presence of pigment dust pollution, control pigment particle size are distributed and improve the uses such as pigmenting power, vividness and brightness in order to prevent Pigment stabilizer is often dispersed in water and is prepared into water-based pigment dispersions by effect, water-based pigment dispersions also known as aqueous color Slurry, is one of common colorant kind of the numerous areas such as coating, papermaking, weaving.
The raw materials such as pigment, dispersant, wetting agent, water are the techniques such as be dispersed through to, ground, defoamed, filtered and prepare aqueous color paste It is most commonly seen technique, dispersant can significantly improve the dispersion stabilization of pigment particles in water, but the study found that in height Under the conditions of shearing force, polyelectrolyte etc., in the aqueous color paste prepared using dispersant dispersion pigment, pigment particle surface still can The desorption that dispersant occurs, causes dispersion to be destroyed, limits the application field that the technique prepares mill base.
The production process of viscose rayon is will cannot to be obtained in the natural material of direct fabrics from timber, bamboo etc. Cellulose through caustic soda dipping, carbon disulfide chemical combination, is dissolved in the chemical processing technologies such as diluted alkaline and is made rayon spinning stoste, then Viscose glue is sprayed onto by spinneret orifice in spinning acid bath, and viscose rayon is obtained through solidification, decomposition, regeneration.
The original liquid coloring technique of viscose rayon is that colorant progress spinning is added and is directly prepared into the spinning solution of viscose glue The technique of coloured viscose rayon, in the mixed process of mill base and rayon spinning stoste, in strong acid, alkali variation and stirring production Under raw high shear, it is susceptible to mill base prepared by dispersant dispersion pigmenting techniques because dispersant is inhaled in surface of pigments Attached effect is poor and leads to excessive granules of pigments, granules of pigments reunion, granules of pigments and viscose rayon binding strength difference etc. occur now As, so lead to problems such as spinning nozzle block, can not spinning, pigment resistance to migration it is low.
Coating modification is carried out to pigment, can not only particle be prevented to reunite in the polymer of surface of pigments cladding, it can It is a kind of novel make paints also so that the aqueous color paste prepared has the performances such as excellent resistance to dielectric and resistance to high shear force The method of prepared product, at home and abroad has lot of documents to be reported.Pass through as Chinese patent CN101418137A discloses one kind For situ aggregation method in the method for surface of pigments coated polymer, it is polymerizable that Chinese patent CN101864194A discloses a kind of application The method that dispersant prepares coated pigment, United States Patent (USP) US8912249 then disclose a kind of use acrylic monomers and polyurethane The method of coated pigment mill base, the mill base are used for ink-jet printing ink, with heat-resistant stability is good, it is small etc. to be influenced by environmental change A series of advantages.
Dimeric dibasic acid is resourceful, and cheap, is the important intermediate of chemical industry, is widely used in ink, coating And the numerous areas such as engineering material.Since dimeric dibasic acid contains double bond on molecular structure, can be used as applied to emulsion polymerization Response type surfactant active, but use it for being rarely reported in the preparation of coated pigment at present, more have no using dimeric dibasic acid and Its derivative prepares the report of the coated pigment mill base for viscose glue original liquid coloring as response type surfactant active.
Invention content
In order to overcome above-mentioned the deficiencies in the prior art, prepared using reactive emulsifier the present invention provides a kind of The method of original liquid coloring coated pigment mill base, ultra-fine coated pigment mill base prepared by this method are used for viscose glue original liquid coloring, tool There are the series of advantages such as small particle diameter distribution, good spinnability, pigment resistance to migration height.
The present invention in order to solve its technical problem used by technical solution be:
A method of original liquid coloring coated pigment mill base being prepared using reactive emulsifier, is included the following steps:
(1) in terms of the mass percent of coated pigment mill base gross mass, the organic pigment of 5-20%, point of 1-4% are weighed Powder, the reactive emulsifier of 1-4%, the comonomer of 2-5%, 0.2-1.0% functional aid, account for the total matter of comonomer Measure initiator, qs pH adjuster and the balance deionized water of 0.25-1.5%;
(2) organic pigment, dispersant, reactive emulsifier and deionized water are mixed and stirred for dispersion at least 20 minutes Afterwards, it is placed in sand mill and at least grinds 3 times, ultrafine organic paint water-base disperse system is made;
(3) under room temperature, addition comonomer and initiator into gained ultrafine organic paint water-base disperse system in (2) And through high speed emulsification make its miniemulsion after, be transferred to equipped with blender, condenser reaction vessel in, be warming up to 60-80 DEG C And it is down to room temperature after being stirred to react 6-10 hours, obtain coated pigment mill base precursor;The mode of high speed described herein emulsification be Homogenous disperse 5-20 minutes or through ultrasonic disperse at least 10 minutes under 5000-24000 revs/min of mixing speed;
(4) after adding functional aid in gained coated pigment mill base precursor in (3), pH value is adjusted using pH adjusting agent To 8-10, you can obtain original liquid coloring coated pigment mill base.
This method can also need to decide whether to need progress step (5) according to actual product:Into step (4) through adjusting It has suffered in the coated pigment mill base precursor of pH value and adds appropriate antimildew disinfectant.
The general structure (I) of the wherein described reactive emulsifier is as follows:
Wherein R and R ' are Na, K, NH independently of each other4(CH2)nCH3In one kind, the integer that n is 0~7 and includes 0 and 7;And R and R ' cannot be (CH simultaneously2)nCH3;Compound with the general structure (I) is that dimeric dibasic acid or dimeric dibasic acid derive Object, such compound is cheap and derives from a wealth of sources, and is suitable for industrial applications.
The general structure (II) of the functional aid is as follows:
Wherein n and m are mutual indepedent, are 1~18 integer, and include 1 and 18, and preferred functional aid is succinic acid At least one of di-isooctyl sodium sulfonate and aerosol OT, the functional aid is for promoting viscose rayon The resistance to migration of pigment is with obvious effects in spinnability, fiber.When in use, it is proposed that after the functional aid is diluted with water, In the state of mill base high-speed stirred, it is added in mill base.
Organic pigment used in the present invention is common viscose rayon original liquid coloring organic pigment, can be selected from phthalocyanines Pigment, azo pigment, quinacridone-type pigments, isoindoline ketone pigment, triarylmethane compound pigment, dioxazines pigment, Any one of common organic pigment such as nitrogen methine class pigment, nitro and nitrous base class pigment, condensed ring ketone pigment.
It according to mass ratio is 5-2 that heretofore described comonomer, which is hydrophobic comonomer and hydrophilic co-monomer,:1 It is mixed to form, and the hydrophobic comonomer is styrene, tetrafluoroethene, isobutene, isoprene, methyl methacrylate Ester, methyl acrylate, ethyl methacrylate, propyl methacrylate, butyl methacrylate, hexyl methacrylate, first Base acrylic acid-2-ethyl caproite, lauryl methacrylate, octadecyl methacrylate, vinyl acetate, methyl acrylate, Ethyl acrylate, propyl acrylate, butyl acrylate, Hexyl 2-propenoate, acrylate -2- ethylhexyls, lauryl acrylate With one kind in octadecyl acrylate;The hydrophilic monomer is acrylic acid, methacrylic acid, vinyl benzoic acid and vinyl One kind in benzene sulfonic acid.
Heretofore described dispersant is fatty alcohol polyoxyethylene ether, polyoxyethylene polyols ester and sorbitan fatty At least one of esters of gallic acid dispersant, wherein the fatty alcohol polyoxyethylene ether dispersant is n-octyl alcohol ether, n-heptanol ether, just One kind in lauryl alcohol ether and tetradecanol ether;The polyoxyethylene polyols ester dispersant be trade names be Tween-40, One kind in Tween-60, Tween-65, Tween-80 and Tween-85 polyoxyethylene polyols ester;The Sorbitan alcohol ester Fat esters of gallic acid dispersant is that trade names are one kind in Span-40, Span-80 and Span-85 sorbitan fatty acid ester. Its specific name of the dispersant of above-mentioned trade names and structure known technology known to those skilled in the art, and can be with From《Surfactant-principle, synthesis, measurement and application》Deng being inquired in the books about surfactant.
Initiator of the present invention is a kind of water soluble starter and a kind of oil-soluble initiator according to mass ratio 1:1-5 is multiple Match and obtain, and the water soluble starter is one kind in potassium peroxydisulfate, ammonium persulfate and sodium peroxydisulfate, the oil-soluble causes Agent is one kind in azodiisobutyronitrile, azobisisoheptonitrile, azo diisopropyl imidazoline hydrochloride and azobisisovaleronitrile.
PH adjusting agent has been further related in the present invention, can have been adjusted the pH value of coated pigment mill base precursor by the pH adjusting agent To between 8-10, the pH adjusting agents commonly used in the art such as sodium hydroxide, potassium hydroxide, ammonium hydroxide, triethanolamine and acetic acid can be selected; In addition in mill base preparation method of the present invention, to avoid that the color caused by the growth of the microorganisms such as bacterium, yeast occurs Phenomena such as slurry is rotten, fungus growth, can add antimildew disinfectant, in the present invention, as long as can ensure according to actual needs Mill base is not in mouldy caused by bacteria breed or smelly phenomenon during storage and use and meets weaving row The antimildew disinfectant of industry relevant law, regulation and the limitation of Environmental security authentication requesting can use.
In addition the invention also discloses it is a kind of through above-mentioned preparation method prepare gained original liquid coloring coated pigment mill base, And disclose the application of the original liquid coloring coated pigment mill base in viscose rayon original liquid coloring.
The method have the benefit that:The present invention is single using the reactive emulsifier containing unsaturated double-bond and polymerization Body, by the initiated polymerization that heats up, is used to be coated to organic pigment to prepare original liquid coloring in high speed emulsion process Coated pigment mill base, the mill base are used for viscose rayon original liquid coloring, have pigment in small particle diameter distribution, good spinnability, fiber resistance to The series of advantages such as migration height.
Specific implementation mode
With reference to specific embodiment and comparative example, the present invention is described in further detail.
According to《Pigment indexes》Pigment relevant industries such as (C.I., Colour Index) commonly indicate specific pigment material Method, the pigment of same color can sequentially be numbered arrangement, the specific of pigment is indicated with organic pigment product call number Structure, such as phthalocyanine blue 15:3 pigment are named as pigment blue 15:3(C.I.Pigment Blue15:3), benzimidazolone yellow quilt It is named as pigment yellow 154 (C.I.Pigment Yellow154), pigment used in the following example and comparative example is specific to tie Structure can according to organic pigment product call number from《Organic pigment index card》Etc. being inquired in common books.
In the following example and comparative example, the concrete structure of polymerisable emulsifier used is respectively:
Polymerisable emulsifier A:
Polymerisable emulsifier B:
Polymerisable emulsifier C:
Polymerisable emulsifier D:
Embodiment 1 prepares cladding phthalocyanine blue 15:3(C.I.Pigment Blue 15:3) dispersible pigment color paste
Take 40 grams of phthalocyanine blues 15:3 pigment, 8 grams of n-dodecanol ether dispersants, 8 grams of polymerisable emulsifier A, 320 grams go from Sub- water after being dispersed with stirring 30 minutes, the material after dispersion is placed in grinder and is ground 3 times, and water base point of phthalocyanine blue pigment is made Then granular media system adds 6.4 grams of styrene, 1.6 grams of acrylic acid, 0.06 gram of potassium peroxydisulfate, 0.06 gram of two isobutyl of azo thereto Nitrile, under 5000 revs/min of mixing speed homogenous disperse 20 minutes are subsequently placed in equipped with blender, thermometer, condenser In reaction vessel, 70 DEG C are warming up to, is stirred to react cooling discharge after 10 hours, adjusts pH value to 8.5, under mill base high-speed stirred, 4 grams of diisooctyl succinate sodium sulfonates and 12 grams of water are added in mill base are uniformly dispersed after mixing, polymer overmold is obtained Phthalocyanine blue 15:3 dispersible pigment color pastes.
Embodiment 2 prepares cladding everbright fast yellow 5GX (C.I.Pigment Yellow 74) dispersible pigment color paste
Take 20 grams of everbright fast yellow 5GX (C.I.Pigment Yellow 74), 8 grams of dispersant Tween-85,4 grams of polymerizable breasts Agent B, 340 grams of deionized waters after being dispersed with stirring 30 minutes, the material after dispersion are placed in grinder and is ground 5 times, are made super Thin pigment yellow water-base disperse system, then adds 10 grams of methyl methacrylates, 2 grams of acrylic acid, 0.04 gram of persulfuric acid thereto Potassium, 0.08 gram of azodiisobutyronitrile, homogenous disperse 5 minutes under 24000 revs/min of mixing speed are subsequently placed in be equipped with and stir In the reaction vessel for mixing device, thermometer, condenser, 80 DEG C are warming up to, is stirred to react cooling discharge after 6 hours, pH value tune is added It saves agent and adjusts pH value to 8, under mill base high-speed stirred, after mixing by 0.8 gram of aerosol OT and 15.4 grams of water, It is separately added into mill base and is uniformly dispersed with 0.2 gram of antimildew disinfectant, obtain polymer overmold everbright fast yellow 5GX dispersible pigment color pastes.
Embodiment 3 prepares cladding permanent bordeaux DGR (C.I.Pigment Red 112) dispersible pigment color paste
Take 30 grams of permanent bordeaux DGR (C.I.Pigment Red 112) pigment, 8 grams of dispersant Span-85,8 grams of polymerizable breasts Agent C, 320 grams of deionized waters are dispersed with stirring after twenty minutes, the material after dispersion are placed in grinder and is ground 3 times, are made super Thin paratonere water-base disperse system, then adds 7 grams of lauryl methacrylates thereto, 3.5 grams of vinyl benzoic acids, and 0.01 Gram potassium peroxydisulfate, 0.017 gram of azodiisobutyronitrile, homogenous disperse 10 minutes under 15000 revs/min of mixing speed, then It is placed in the reaction vessel that blender, thermometer, condenser are housed, is warming up to 70 DEG C, is stirred to react cooling discharge after 8 hours, PH adjusting agent is added and adjusts pH value to 10, under high velocity agitation, by 0.5 gram of aerosol OT, 1.5 grams of succinic acid Di-isooctyl sodium sulfonate and 22 grams of deionized waters after mixing, add in mill base and are uniformly dispersed, obtain polymer overmold phthalein Cyanines indigo plant dispersible pigment color paste.Obtain polymer overmold permanent bordeaux DGR dispersible pigment color pastes.
Embodiment 4 prepares cladding forever solid orange GR (C.I.Pigment Orange 18) dispersible pigment color paste
Take 80 grams of forever solid orange pigment, 16 grams of dispersant Tween-40,16 grams of polymerisable emulsifier D, 252 grams of deionized waters, After being dispersed with stirring 30 minutes, the material after dispersion is placed in grinder and is ground 3 times, forever solid orange pigment aqueous based dispersions are made Then system adds 16 grams of styrene, 4 grams of vinylbenzenesulfonic acids, 0.03 gram of potassium peroxydisulfate, 0.15 gram of two isobutyl of azo thereto Nitrile, through ultrasonic disperse 10 minutes, be subsequently placed in equipped with blender, thermometer, condenser reaction vessel in, be warming up to 80 DEG C, Cooling discharge after being stirred to react 6 hours is added pH adjusting agent and adjusts pH value to 9, under mill base high-speed stirred, by 1 gram of succinic acid Dioctyl ester sodium sulfonate and 14 grams of water after mixing, are separately added into mill base with 1 gram of antimildew disinfectant and are uniformly dispersed, polymerize Object coats forever solid orange GR dispersible pigment color pastes.
Comparative example 5 prepares cladding phthalocyanine blue 15:3(C.I.Pigment Blue 15:3) dispersible pigment color paste
Take 40 grams of phthalocyanine blues 15:3 pigment, 8 grams of n-dodecanol ether dispersants, 8 grams of polymerisable emulsifier A, 336 grams of deionizations Water after being dispersed with stirring 30 minutes, the material after dispersion is placed in grinder and is ground 3 times, and phthalocyanine blue pigment aqueous dispersion is made System, then thereto add 6.4 grams of styrene, 1.6 grams of acrylic acid, 0.06 gram of potassium peroxydisulfate, 0.06 gram of azodiisobutyronitrile, Homogenous disperse 20 minutes under 5000 revs/min of mixing speed, be subsequently placed in equipped with blender, thermometer, condenser it is anti- It answers in container, is warming up to 70 DEG C, be stirred to react cooling discharge after 10 hours, adjust pH value to 8.5, obtain polymer overmold phthalocyanine Indigo plant 15:3 dispersible pigment color pastes.
Comparative example 6 prepares phthalocyanine blue 15 with conventional lapping mode:3(C.I.Pigment Blue 15:3) dispersible pigment color paste
By 12 grams of nonylphenol polyoxyethylene ether dispersants, 3 grams of alkyl polyoxyethylene ether phosphate wetting agents and 145 grams go from Sub- water it is agitated be uniformly mixed form mixed liquor after, by 40 grams of phthalocyanine blues 15:Above-mentioned mixed liquor is added in 3 pigment, through high speed dispersion, After horizontal mill is ground 5 times, 200 grams of deionized waters are added and grind again 1 time, filters, obtains phthalocyanine blue 15:3 dispersible pigment color pastes.
Performance test
1) particle diameter distribution is tested
It is surveyed with the Zetasizer Nano Zs90 types nano particle sizes and zeta potential instrument of Malvern Instr Ltd. of Britain The composition particle diameter distribution is tried, in test result, the most granule that in surveyed particle 50% particle can be transferred through is indicated with D50 Diameter indicates the minimum grain size that in surveyed particle 90% particle can be transferred through with D90, particle diameter distribution is indicated with D50 and D90.
2) spinnability is tested
Ultra-fine coated pigment dispersion and 1000 grams of viscose glues spinnings prepared by 100 grams of embodiment 1-4 and comparative example 5-6 is taken respectively Silk stock solution is formed with color spinning stoste after mixing, through vacuum defoamation, it is passed through the spinneret orifice of 120 hole, 0.08 mm dia Spinning is carried out, spinning speed 5m/min, after continuous spinning 3 hours, whether there is or not block spinneret orifice situation for observation.√ expressions have no Spinning hole plug;Zero indicates visible part spinning hole plug;× indicate that spinneret orifice all blocks.
3) pigment resistance to migration is tested
10 grams of above-mentioned fibers are taken respectively, are put into togerther in the flask with condensing reflux pipe with 150 grams of deionized waters, in 95 DEG C Lower heating 1 hour, takes out fiber, sees whether solution changes colour.√ expressions have no discoloration;Zero indicates slightly to change colour, but unobvious;× Indicate that solution has apparent discoloration.
4) test result
Above-mentioned test result is as shown in table 1.
The test result of table 1. embodiment 1-4 and comparative example 5-6
For the ordinary skill in the art, specific embodiment is only exemplarily described the present invention, Obviously the present invention specific implementation is not subject to the restrictions described above, as long as use the inventive concept and technical scheme of the present invention into The improvement of capable various unsubstantialities, or it is not improved by the present invention design and technical solution directly apply to other occasions , within protection scope of the present invention.

Claims (9)

1. a kind of method preparing original liquid coloring coated pigment mill base using reactive emulsifier, it is characterised in that:Including under State step:
(1) in terms of the mass percent of coated pigment mill base gross mass, weigh the organic pigment of 5-20%, the dispersant of 1-4%, The reactive emulsifier of 1-4%, the comonomer of 2-5%, 0.2-1.0% functional aid, account for comonomer gross mass Initiator, qs pH adjuster and the balance deionized water of 0.25-1.5%;
(2) organic pigment, dispersant, reactive emulsifier and deionized water are mixed and stirred for dispersion at least after twenty minutes, set It is at least ground in sand mill 3 times, ultrafine organic paint water-base disperse system is made;
(3) under room temperature, comonomer and initiator are added into gained ultrafine organic paint water-base disperse system in (2) and is passed through High speed emulsification make its miniemulsion after, be transferred to equipped with blender, condenser reaction vessel in, be warming up to 60-80 DEG C and stir It is down to room temperature after mixing reaction 6-10 hours, obtains coated pigment mill base precursor;
(4) after adding functional aid in gained coated pigment mill base precursor in (3), pH value is adjusted to 8- using pH adjusting agent 10, you can obtain original liquid coloring coated pigment mill base;
The general structure (I) of the reactive emulsifier is as follows:
Wherein R and R ' are Na, K, NH independently of each other4(CH2)nCH3In one kind, the integer that n is 0~7, and includes 0 and 7; And R and R ' cannot be (CH simultaneously2)nCH3
The functional aid is at least one of diisooctyl succinate sodium sulfonate and aerosol OT.
2. the method according to claim 1 for preparing original liquid coloring coated pigment mill base using reactive emulsifier, It is characterized in that:Further include step (5):It is added in the adjusted coated pigment mill base precursor for crossing pH value into step (4) appropriate anti- Mould fungicide.
3. the method according to claim 1 for preparing original liquid coloring coated pigment mill base using reactive emulsifier, It is characterized in that:The mode emulsified at a high speed described in step (3) is the homogenous disperse under 5000-24000 revs/min of mixing speed 5-20 minutes or through ultrasonic disperse at least 10 minutes.
4. the method according to claim 1 for preparing original liquid coloring coated pigment mill base using reactive emulsifier, It is characterized in that:It according to mass ratio is 5-2 that the comonomer, which is hydrophobic comonomer and hydrophilic co-monomer,:1 mixing shape At, and the hydrophobic comonomer is styrene, tetrafluoroethene, isobutene, isoprene, methyl methacrylate, methyl Ethyl acrylate, propyl methacrylate, butyl methacrylate, hexyl methacrylate, methacrylic acid -2- ethyl hexyls Ester, lauryl methacrylate, octadecyl methacrylate, vinyl acetate, methyl acrylate, ethyl acrylate, acrylic acid In propyl ester, butyl acrylate, Hexyl 2-propenoate, acrylate -2- ethylhexyls, lauryl acrylate and octadecyl acrylate It is a kind of;The hydrophilic monomer is one kind in acrylic acid, methacrylic acid, vinyl benzoic acid and vinylbenzenesulfonic acid.
5. the method according to claim 1 for preparing original liquid coloring coated pigment mill base using reactive emulsifier, It is characterized in that:The dispersant is fatty alcohol polyoxyethylene ether, polyoxyethylene polyols ester and sorbitan fatty acid ester class At least one of dispersant.
6. the method according to claim 5 for preparing original liquid coloring coated pigment mill base using reactive emulsifier, It is characterized in that:The fatty alcohol polyoxyethylene ether dispersant is n-octyl alcohol ether, n-heptanol ether, n-dodecanol ether and tetradecanol ether In one kind;The polyoxyethylene polyols ester dispersant be Tween-40, Tween-60, Tween-65, Tween-80 and One kind in Tween-85 polyoxyethylene polyols esters;The sorbitan fatty acid ester class dispersant be Span-40, One kind in Span-80 and Span-85 sorbitan fatty acid esters.
7. the method according to claim 1 for preparing original liquid coloring coated pigment mill base using reactive emulsifier, It is characterized in that:The initiator is a kind of water soluble starter and a kind of oil-soluble initiator according to mass ratio 1:1-5 compound and , and the water soluble starter is one kind in potassium peroxydisulfate, ammonium persulfate and sodium peroxydisulfate, the oil-soluble initiator is One kind in azodiisobutyronitrile, azobisisoheptonitrile, azo diisopropyl imidazoline hydrochloride and azobisisovaleronitrile.
8. preparing the original liquid coloring coated pigment mill base of gained according to any claim the method in claim 1-7.
9. the original liquid coloring according to claim 8 application of coated pigment mill base, it is characterised in that:The original liquid coloring It is used for viscose rayon original liquid coloring with coated pigment mill base.
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CN101864194A (en) * 2010-06-21 2010-10-20 江南大学 Method for preparing micro-surface free radical polymerization superfine clad organic pigment

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