CN104987775A - Method for preparing coated pigment color paste for coloring stock solution by using reactive emulsifier - Google Patents
Method for preparing coated pigment color paste for coloring stock solution by using reactive emulsifier Download PDFInfo
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Abstract
The invention discloses a method for preparing a coated pigment color paste for coloring a stock solution by using a reactive emulsifier. The method comprises the following steps: selecting an organic pigment, a dispersant, the reactive emulsifier with a dimeric acid structure containing an unsaturated double bond, and deionized water, grinding to prepare an ultrafine organic pigment dispersion, adding a copolymerization monomer and an initiator to the ultrafine organic pigment aqueous dispersion, carrying out high speed emulsification, heating for initiating polymerization to complete coating of the pigment by a polymer, and adding a functional additive to the above obtained color paste in order to obtain the coated pigment color paste, wherein a pH adjusting agent and a mildew prevention bactericide can be added to the color paste according to practical needs. The coated pigment color paste prepared through the method is used for coloring a viscose fiber stock solution, and has the advantages of small particle size distribution, good spinnability and high pigment transference resistance.
Description
Technical field
The present invention relates to a kind of preparation method of dispersible pigment color paste, particularly relate to a kind of method using reactive emulsifier to prepare original liquid coloring coated pigment mill base, belong to technical field of fine.
Background technology
Pigment is the second largest colouring agent being only second to dyestuff in dyeing, and compared with dyestuff, pigment has significant energy saving standard advantage, has a extensive future.But commercial pigment dyestuff mainly exists with the powder morphology such as aggregate, aggregate, in order to prevent pigment dust pollution, control pigment particle size distribution and improve the results of use such as pigmenting power, vividness and brightness, often pigment stabilizer is dispersed in water and is prepared into water-based pigment dispersions, water-based pigment dispersions has another name called aqueous color paste, is one of tinting material kind that the numerous areas such as coating, papermaking, weaving are conventional.
It is technique the most common that the raw materials such as pigment, dispersion agent, wetting agent, water are prepared aqueous color paste through techniques such as dispersion, grinding, froth breaking, filtrations, dispersion agent can significantly improve the dispersion stabilization of pigment particles in water, but research finds, under the condition such as high shear force, polyelectrolyte, in the aqueous color paste utilizing dispersant pigment to prepare, still can there is the desorption of dispersion agent in pigment particle surface, cause dispersion system to be destroyed, and limits the Application Areas that this technique prepares mill base.
The production process of viscose fiber, it is the Mierocrystalline cellulose that cannot will obtain in the natural materials of direct fabrics from timber, bamboo etc., through caustic soda dipping, dithiocarbonic anhydride chemical combination, be dissolved in the chemical processing technologies such as diluted alkaline and make rayon spinning stoste, again viscose glue is sprayed onto in spinning acid bath by orifice, obtains viscose fiber through solidifying, decomposing, regenerate.
The original liquid coloring technique of viscose fiber is in the spinning solution of viscose glue, add tinting material and carry out the technique that coloured viscose rayon is directly made in spinning, in the mixing process of mill base and rayon spinning stoste, in strong acid, under the high shear that alkali change and stirring produce, the mill base prepared with dispersant pigmenting techniques easily occurs because dispersion agent causes occurring that granules of pigments is excessive in surface of pigments adsorption difference, granules of pigments is reunited, the phenomenons such as granules of pigments and viscose fiber binding strength difference, and then cause spinning nozzle to block, cannot spinning, the problems such as pigment resistance to migration is low.
Coating modification is carried out to pigment, the polymkeric substance coated in surface of pigments not only can stop agglomerate grain, can also to make the aqueous color paste of preparation have the performances such as excellent resistance to dielectric medium and resistance to high shear force, be a kind of method of the novel prepared product that makes paints, have lot of documents report at home and abroad.As Chinese patent CN101418137A discloses a kind of by the method for situ aggregation method at surface of pigments coated polymer, Chinese patent CN101864194A discloses a kind of method applied polymerizable dispersion agent and prepare coated pigment, US Patent No. 8912249 discloses a kind of method using Acrylic Acid Monomer and urethane coated pigment mill base, this mill base be used for ink-jet printing ink, have heat-resistant stability good, affect a series of advantages such as little by environmental change.
Dimeracid aboundresources, and cheap, be the important intermediate of chemical industry, be widely used in the numerous areas such as ink, coating and engineering materials.Because dimeracid contains double bond on molecular structure, can be used as the response type surfactant active being applied to letex polymerization, but use it at present in the preparation of coated pigment and rarely have report, more have no and utilize dimeracid and derivative thereof as the report of response type surfactant active for the preparation of the coated pigment mill base of viscose glue original liquid coloring.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of method using reactive emulsifier to prepare original liquid coloring coated pigment mill base, ultra-fine coated pigment mill base prepared by the method, for viscose glue original liquid coloring, has the series of advantages such as size distribution is little, good spinnability, pigment resistance to migration are high.
The present invention in order to the technical scheme solving its technical problem and adopt is:
Use reactive emulsifier to prepare a method for original liquid coloring coated pigment mill base, comprise the steps:
(1) with the mass percent of coated pigment mill base total mass, the pigment dyestuff of 5-20%, the dispersion agent of 1-4%, the reactive emulsifier of 1-4%, the comonomer of 2-5%, the functional aid of 0.2-1.0%, the initiator accounting for comonomer total mass 0.25-1.5%, qs pH adjuster and balance deionized water is taken;
(2) pigment dyestuff, dispersion agent, reactive emulsifier and deionized water are mixed also dispersed with stirring after at least 20 minutes, to be placed in sand mill and at least to grind 3 times, obtained ultrafine organic paint water-base disperse system;
(3) under normal temperature, in gained ultrafine organic paint water-base disperse system in (2), add comonomer and initiator and make after its miniemulsion through emulsify at a high speed, be transferred in the reaction vessel that agitator, condenser are housed, be warming up to 60-80 DEG C and be down to normal temperature after stirring reaction 6-10 hour, obtaining coated pigment mill base precursor; The mode of emulsify at a high speed described herein is under the stirring velocity of 5000-24000 rev/min homogenous disperse 5-20 minute or through ultrasonic disperse at least 10 minutes;
(4), after adding functional aid in gained coated pigment mill base precursor in (3), adopt pH adjusting agent adjust ph to 8-10, original liquid coloring coated pigment mill base can be obtained.
The method can also determine the need of carrying out step (5) according to the needs of actual product: add appropriate antimildew disinfectant in the coated pigment mill base precursor through adjusting pH value in step (4).
The general structure (I) of wherein said reactive emulsifier is as follows:
Wherein R and R ' is separate, is Na, K, NH
4(CH
2)
ncH
3in one, n is the integer of 0 ~ 7, and comprises 0 and 7; And R and R ' can not be (CH simultaneously
2)
ncH
3; The compound with this general structure (I) is dimeracid or dimeracid derivative, this compounds low price and wide material sources, is suitable for industrial applications.
The general structure (II) of described functional aid is as follows:
Wherein n and m is separate, be the integer of 1 ~ 18, and comprise 1 and 18, preferred functional aid is at least one in succinate sodium 2-ethylhexyl and aerosol OT, and this functional aid is for the resistance to migration successful promoting pigment in the spinning property of viscose fiber, fiber.In use, advise, by after this functional aid thin up, under the state of mill base high-speed stirring, adding in mill base.
The pigment dyestuff used in the present invention is common viscose fiber original liquid coloring pigment dyestuff, can be selected from any one in phthalocyanine pigment, azo pigment, quinacridone-type pigments, isoindoline ketone pigment, triarylmethane compound pigment, dioxazines pigment, nitrogen methyne class pigment, nitro and the conventional pigment dyestuff such as nitrous base class pigment, condensed ring ketone pigment.
Comonomer described in the present invention is hydrophobic comonomer and hydrophilic co-monomer is that 5-2:1 is mixed to form according to mass ratio, and described hydrophobic comonomer is vinylbenzene, tetrafluoroethylene, iso-butylene, isoprene, methyl methacrylate, methyl acrylate, β-dimethyl-aminoethylmethacrylate, propyl methacrylate, butyl methacrylate, N-Hexyl methacrylate, methacrylic acid-2-ethylhexyl, lauryl methacrylate(LMA), stearyl methacrylate, vinyl-acetic ester, methyl acrylate, ethyl propenoate, propyl acrylate, butyl acrylate, Ethyl acrylate, acrylate-2-ethylhexyl, one in lauryl acrylate and octadecyl acrylate, described hydrophilic monomer is the one in vinylformic acid, methacrylic acid, vinyl benzoic acid and vinylbenzenesulfonic acid.
Dispersion agent described in the present invention is at least one in fatty alcohol-polyoxyethylene ether, polyoxyethylene polyols ester and sorbitan fatty acid ester class dispersion agent, and wherein said fatty alcohol-polyoxyethylene ether dispersion agent is the one in n-Octanol ether, n-Heptyl alcohol ether, n-dodecanol ether and tetradecanol ether; The described polyoxyethylene polyols ester dispersion agent one that to be trade names be in Tween-40, Tween-60, Tween-65, Tween-80 and Tween-85 polyoxyethylene polyols ester; The described sorbitan fatty acid ester class dispersion agent one that to be trade names be in Span-40, Span-80 and Span-85 sorbitan fatty acid ester.Its concrete title of the dispersion agent of above-mentioned trade names and structure known technology all known to those skilled in the art, and all can inquire about from " tensio-active agent-principle, synthesis, mensuration and application " etc. about the books of tensio-active agent.
Initiator of the present invention for a kind of water soluble starter and a kind of oil-soluble initiator composite and obtain according to mass ratio 1:1-5, and described water soluble starter is the one in Potassium Persulphate, ammonium persulphate and Sodium Persulfate, described oil-soluble initiator is the one in Diisopropyl azodicarboxylate, 2,2'-Azobis(2,4-dimethylvaleronitrile), azo dicyclohexyl formonitrile HCN and 2,2'-Azobis(2,4-dimethylvaleronitrile).
Also relate to pH adjusting agent in the present invention, by this pH adjusting agent, the pH value of coated pigment mill base precursor is adjusted between 8-10, this areas such as sodium hydroxide, potassium hydroxide, ammoniacal liquor, trolamine and acetic acid can be selected to commonly use pH value regulator; In addition in mill base preparation method of the present invention, for avoiding the phenomenons such as the mill base occurring to cause because of the microbial growth such as bacterium, yeast goes bad, mould-growth, antimildew disinfectant can be added according to actual needs, in the present invention, if can ensure mill base store and use procedure in there will not be the mouldy or smelly phenomenon because bacteria breed causes and meet textile industry relevant law, regulation and environmental safety authentication requesting limit antimildew disinfectant can use.
In addition the invention also discloses a kind of original liquid coloring coated pigment mill base preparing gained through above-mentioned preparation method, and disclose this application of original liquid coloring coated pigment mill base in viscose fiber original liquid coloring.
Advantageous Effects of the present invention is: the present invention adopts the reactive emulsifier containing unsaturated double-bond and polymerization single polymerization monomer to pass through intensification initiated polymerization in emulsify at a high speed process, thus carry out coatedly preparing original liquid coloring coated pigment mill base to pigment dyestuff, this mill base is used for viscose fiber original liquid coloring, has that size distribution is little, series of advantages such as pigment resistance to migration is high in good spinnability, fiber.
Embodiment
Below in conjunction with specific embodiment and comparative example, the present invention is described in further detail.
According to " pigment index " (C.I., Colour Index) etc. the method for the concrete pigment material of expression commonly used of pigment relevant industries, can by the sequentially numbering arrangement of the pigment of same color, the concrete structure of pigment is represented with pigment dyestuff product call number, as phthalocyanine blue 15:3 pigment is named as pigment Blue 15: 3 (C.I.Pigment Blue15:3), benzimidazolone yellow is named as pigment yellow 154 (C.I.Pigment Yellow154), pigment used in the following example and comparative example, its concrete structure can be inquired about from conventional books such as " pigment dyestuff index cards " according to pigment dyestuff product call number.
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 coated phthalocyanine blue 15:3 (C.I.Pigment Blue 15:3) dispersible pigment color paste
Get 40 grams of phthalocyanine blue 15:3 pigment, 8 grams of n-dodecanol ether dispersion agents, , 8 grams of polymerisable emulsifier A, 320 grams of deionized waters, dispersed with stirring is after 30 minutes, material after dispersion is placed in grinding machine for grinding 3 times, obtained phthalocyanine blue pigment water-base disperse system, then 6.4 grams of vinylbenzene are added wherein, 1.6 grams of vinylformic acid, 0.06 gram of Potassium Persulphate, 0.06 gram of Diisopropyl azodicarboxylate, homogenous disperse 20 minutes under the stirring velocity of 5000 revs/min, then be placed in and agitator is housed, thermometer, in the reaction vessel of condenser, be warming up to 70 DEG C, stirring reaction is cooling discharge after 10 hours, adjust ph to 8.5, under mill base high-speed stirring, add in mill base after 4 grams of succinate sodium 2-ethylhexyls and 12 grams of water are mixed and be uniformly dispersed, obtain polymer overmold phthalocyanine blue 15:3 dispersible pigment color paste.
Embodiment 2 prepares coated organic yellow 5GX (C.I.Pigment Yellow 74) dispersible pigment color paste
Get 20 grams of organic yellow 5GX (C.I.Pigment Yellow 74), 8 grams of dispersion agent Tween-85, 4 grams of polymerisable emulsifier B, 340 grams of deionized waters, dispersed with stirring is after 30 minutes, material after dispersion is placed in grinding machine for grinding 5 times, the yellow water-base disperse system of obtained superfine pigment, then 10 grams of methyl methacrylates are added wherein, 2 grams of vinylformic acid, 0.04 gram of Potassium Persulphate, 0.08 gram of Diisopropyl azodicarboxylate, homogenous disperse 5 minutes under the stirring velocity of 24000 revs/min, then be placed in and agitator is housed, thermometer, in the reaction vessel of condenser, be warming up to 80 DEG C, stirring reaction is cooling discharge after 6 hours, add pH value regulator adjust ph to 8, under mill base high-speed stirring, after 0.8 gram of aerosol OT and 15.4 grams of water are mixed, add in mill base respectively with 0.2 gram of antimildew disinfectant and be uniformly dispersed, obtain polymer overmold organic yellow 5GX dispersible pigment color paste.
Embodiment 3 prepares coated permanent bordeaux DGR (C.I.Pigment Red 112) dispersible pigment color paste
Get 30 grams of permanent bordeaux DGR (C.I.Pigment Red 112) pigment, 8 grams of dispersion agent Span-85, 8 grams of polymerisable emulsifier C, 320 grams of deionized waters, dispersed with stirring is after 20 minutes, material after dispersion is placed in grinding machine for grinding 3 times, the obtained red water-base disperse system of superfine pigment, then 7 grams of lauryl methacrylate(LMA)s are added wherein, 3.5 grams of vinyl benzoic acids, 0.01 gram of Potassium Persulphate, 0.017 gram of Diisopropyl azodicarboxylate, homogenous disperse 10 minutes under the stirring velocity of 15000 revs/min, then be placed in and agitator is housed, thermometer, in the reaction vessel of condenser, be warming up to 70 DEG C, stirring reaction is cooling discharge after 8 hours, add pH value regulator adjust ph to 10, under high velocity agitation, by 0.5 gram of aerosol OT, after 1.5 grams of succinate sodium 2-ethylhexyls and 22 grams of deionized waters mix, add in mill base again and be uniformly dispersed, obtain polymer overmold phthalocyanine blue pigment mill base.Obtain polymer overmold permanent bordeaux DGR dispersible pigment color paste.
Embodiment 4 prepares coated solid orange GR (C.I.Pigment Orange 18) dispersible pigment color paste forever
Get 80 grams of solid orange pigment forever, 16 grams of dispersion agent Tween-40, 16 grams of polymerisable emulsifier D, 252 grams of deionized waters, dispersed with stirring is after 30 minutes, material after dispersion is placed in grinding machine for grinding 3 times, obtained solid orange pigment water-base disperse system forever, then 16 grams of vinylbenzene are added wherein, 4 grams of vinylbenzenesulfonic acids, 0.03 gram of Potassium Persulphate, 0.15 gram of Diisopropyl azodicarboxylate, through ultrasonic disperse 10 minutes, then be placed in and agitator is housed, thermometer, in the reaction vessel of condenser, be warming up to 80 DEG C, stirring reaction is cooling discharge after 6 hours, add pH value regulator adjust ph to 9, under mill base high-speed stirring, after 1 gram of aerosol OT and 14 grams of water are mixed, add in mill base respectively with 1 gram of antimildew disinfectant and be uniformly dispersed, obtain polymer overmold solid orange GR dispersible pigment color paste forever.
Comparative example 5 prepares coated phthalocyanine blue 15:3 (C.I.Pigment Blue 15:3) dispersible pigment color paste
Get 40 grams of phthalocyanine blue 15:3 pigment, 8 grams of n-dodecanol ether dispersion agents, 8 grams of polymerisable emulsifier A, 336 grams of deionized waters, dispersed with stirring is after 30 minutes, material after dispersion is placed in grinding machine for grinding 3 times, obtained phthalocyanine blue pigment water-base disperse system, then 6.4 grams of vinylbenzene are added wherein, 1.6 grams of vinylformic acid, 0.06 gram of Potassium Persulphate, 0.06 gram of Diisopropyl azodicarboxylate, homogenous disperse 20 minutes under the stirring velocity of 5000 revs/min, then be placed in and agitator is housed, thermometer, in the reaction vessel of condenser, be warming up to 70 DEG C, stirring reaction is cooling discharge after 10 hours, adjust ph to 8.5, obtain polymer overmold phthalocyanine blue 15:3 dispersible pigment color paste.
Comparative example 6 prepares phthalocyanine blue 15:3 (C.I.Pigment Blue 15:3) dispersible pigment color paste with conventional lapping mode
By 12 grams of polyoxyethylene nonylphenol ether dispersion agents, 3 grams of alkyl polyoxyethylene ether phosphoric acid ester wetting agents and 145 grams of deionized waters after being uniformly mixed and forming mixed solution, 40 grams of phthalocyanine blue 15:3 pigment are added above-mentioned mixed solution, after high speed dispersion, horizontal mill grind 5 times, add 200 grams of deionized waters and grind 1 time again, filter, obtain phthalocyanine blue 15:3 dispersible pigment color paste.
Performance test
1) size distribution test
With the Zetasizer Nano Zs90 type nano particle size of Malvern Instr Ltd. of Britain and zeta potential instrument test said composition size distribution, in test result, with D50 represent in survey particle 50% the particle minimum grain size that can pass through, with D90 represent in survey particle 90% the particle minimum grain size that can pass through, represent size distribution with D50 and D90.
2) spinning property test
Get after ultra-fine coated pigment dispersion prepared by 100 grams of embodiment 1-4 and comparative example 5-6 and 1000 grams of rayon spinning stostes mix respectively, color spinning stoste is formed through vacuum defoamation, it is carried out spinning by the orifice of 120 hole 0.08 mm dias, spinning speed is 5m/min, at continuous spinning after 3 hours, observe with or without blocking nozzle slit situation.√ represents that having no nozzle slit blocks; Zero represents the blocking of visible part nozzle slit; × represent that nozzle slit all blocks.
3) pigment resistance to migration test
Get 10 grams of above-mentioned fibers respectively, put into the flask being with condensing reflux pipe together with 150 grams of deionized waters, heat 1 hour at 95 DEG C, take out fiber, see solution whether variable color.√ represents and has no variable color; Zero represents slightly variable color, but not obvious; × represent that solution has obvious variable color.
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 just to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (10)
1. use reactive emulsifier to prepare a method for original liquid coloring coated pigment mill base, it is characterized in that: comprise the steps:
(1) with the mass percent of coated pigment mill base total mass, the pigment dyestuff of 5-20%, the dispersion agent of 1-4%, the reactive emulsifier of 1-4%, the comonomer of 2-5%, the functional aid of 0.2-1.0%, the initiator accounting for comonomer total mass 0.25-1.5%, qs pH adjuster and balance deionized water is taken;
(2) pigment dyestuff, dispersion agent, reactive emulsifier and deionized water are mixed also dispersed with stirring after at least 20 minutes, to be placed in sand mill and at least to grind 3 times, obtained ultrafine organic paint water-base disperse system;
(3) under normal temperature, in gained ultrafine organic paint water-base disperse system in (2), add comonomer and initiator and make after its miniemulsion through emulsify at a high speed, be transferred in the reaction vessel that agitator, condenser are housed, be warming up to 60-80 DEG C and be down to normal temperature after stirring reaction 6-10 hour, obtaining coated pigment mill base precursor;
(4), after adding functional aid in gained coated pigment mill base precursor in (3), adopt pH adjusting agent adjust ph to 8-10, original liquid coloring coated pigment mill base can be obtained;
The general structure (I) of described reactive emulsifier is as follows:
Wherein R and R ' is separate, is Na, K, NH
4(CH
2)
ncH
3in one, n is the integer of 0 ~ 7, and comprises 0 and 7; And R and R ' can not be (CH simultaneously
2)
ncH
3;
The general structure (II) of described functional aid is as follows:
Wherein n and m is separate, is the integer of 1 ~ 18, and comprises 1 and 18.
2. use reactive emulsifier according to claim 1 prepares the method for original liquid coloring coated pigment mill base, it is characterized in that: also comprise step (5): add appropriate antimildew disinfectant in the coated pigment mill base precursor through adjusting pH value in step (4).
3. use reactive emulsifier according to claim 1 prepares the method for original liquid coloring coated pigment mill base, it is characterized in that: the mode of emulsify at a high speed described in step (3) is under the stirring velocity of 5000-24000 rev/min homogenous disperse 5-20 minute or through ultrasonic disperse at least 10 minutes.
4. use reactive emulsifier according to claim 1 prepares the method for original liquid coloring coated pigment mill base, it is characterized in that: described functional aid is at least one in succinate sodium 2-ethylhexyl and aerosol OT.
5. use reactive emulsifier according to claim 1 prepares the method for original liquid coloring coated pigment mill base, it is characterized in that: described comonomer is hydrophobic comonomer and hydrophilic co-monomer is that 5-2:1 is mixed to form according to mass ratio, and described hydrophobic comonomer is vinylbenzene, tetrafluoroethylene, iso-butylene, isoprene, methyl methacrylate, methyl acrylate, β-dimethyl-aminoethylmethacrylate, propyl methacrylate, butyl methacrylate, N-Hexyl methacrylate, methacrylic acid-2-ethylhexyl, lauryl methacrylate(LMA), stearyl methacrylate, vinyl-acetic ester, methyl acrylate, ethyl propenoate, propyl acrylate, butyl acrylate, Ethyl acrylate, acrylate-2-ethylhexyl, one in lauryl acrylate and octadecyl acrylate, described hydrophilic monomer is the one in vinylformic acid, methacrylic acid, vinyl benzoic acid and vinylbenzenesulfonic acid.
6. use reactive emulsifier according to claim 1 prepares the method for original liquid coloring coated pigment mill base, it is characterized in that: described dispersion agent is at least one in fatty alcohol-polyoxyethylene ether, polyoxyethylene polyols ester and sorbitan fatty acid ester class dispersion agent.
7. use reactive emulsifier according to claim 6 prepares the method for original liquid coloring coated pigment mill base, it is characterized in that: described fatty alcohol-polyoxyethylene ether dispersion agent is the one in n-Octanol ether, n-Heptyl alcohol ether, n-dodecanol ether and tetradecanol ether; Described polyoxyethylene polyols ester dispersion agent is the one in Tween-40, Tween-60, Tween-65, Tween-80 and Tween-85 polyoxyethylene polyols ester; Described sorbitan fatty acid ester class dispersion agent is the one in Span-40, Span-80 and Span-85 sorbitan fatty acid ester.
8. use reactive emulsifier according to claim 1 prepares the method for original liquid coloring coated pigment mill base, it is characterized in that: described initiator for a kind of water soluble starter and a kind of oil-soluble initiator composite and obtain according to mass ratio 1:1-5, and described water soluble starter is the one in Potassium Persulphate, ammonium persulphate and Sodium Persulfate, described oil-soluble initiator is the one in Diisopropyl azodicarboxylate, 2,2'-Azobis(2,4-dimethylvaleronitrile), azo dicyclohexyl formonitrile HCN and 2,2'-Azobis(2,4-dimethylvaleronitrile).
9. according to claim 1-8, method prepares the original liquid coloring coated pigment mill base of gained.
10. the application of original liquid coloring coated pigment mill base according to claim 9, is characterized in that: described original liquid coloring coated pigment mill base is used for viscose fiber original liquid coloring.
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