CN104087066A - Ready-to-use type scattered ink-jet ink and preparation method thereof - Google Patents
Ready-to-use type scattered ink-jet ink and preparation method thereof Download PDFInfo
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- CN104087066A CN104087066A CN201410361208.6A CN201410361208A CN104087066A CN 104087066 A CN104087066 A CN 104087066A CN 201410361208 A CN201410361208 A CN 201410361208A CN 104087066 A CN104087066 A CN 104087066A
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Abstract
The invention discloses a ready-to-use type scattered ink-jet ink and a preparation method of the ready-to-use type scattered ink-jet ink. The ink consists of the following raw materials in percentage by mass: 4-11% of a disperse dye, 10-32% of a dispersing agent, 2-10% of a surfactant, 10-15% of sorbitol, 10-16% of propanediol, 10-18% of ethylene glycol, 1-2% of a defoaming agent and 5-6% of quaternary ammonium salt resin. By adopting the ready-to-use type scattered ink-jet ink disclosed by the invention, the problems that an ink is low in saturability, high in spray-head blocking rate and high in cost in the prior art can be solved.
Description
Technical field
The present invention relates to a kind of instant of joining and disperse ink for ink-jet print and compound method.
Background technology
Dispersed dye ink is ink-jet printed has the excellent properties such as abundant, water-fastness, resistance to wiping beautiful in colour, sun-proof, be applied at present digit printing high speed ink-jet decorating machine, there is the characteristics such as printing precision is high, speed is fast, output is large, can produce continuously, make digit printing little by little toward industrial production future development.
In recent years, the patent that is much applicable to the ink-jet of high speed ink-jet decorating machine discloses, as Chinese patent literature discloses a kind of water-based digital ink jet dispersed ink and its preparation method and application [patent No.: 201110169004.9], comprise following sequential steps: (1) calculates by mass percentage, prepare following component: dispersed dye 5～15%, dispersion agent 3～12%, tensio-active agent 0.5～5%, water-miscible organic solvent 20～40%, conductive regulator～8%, additive 0.5～5%, deionized water 20～60%; (2) mill base configuration: dispersion agent, dispersed dye, part water-miscible organic solvent and part deionized water are evenly mixed, be fully ground to particle diameter and be less than 1 μ m, obtain mill base; (3) ink configuration: by the prepared mill base of step (2), add conductivity adjustment agent, tensio-active agent, additive, remaining water-miscible organic solvent and deionized water, stir at normal temperatures, standing, after the strainer filtration with aperture 0.1～2 μ m, obtain required dispersible ink.
Technique scheme, for the stability of product within the quality guaranteed period, has added a lot of anticorrosion, antirust and other auxiliary agents in ink set, and these auxiliary agents all have a certain impact as the degree of depth of color, saturation ratio etc. to the performance of ink colors.Simultaneously, because the toner of dispersible ink is present in system with particulate state, in order to reach object not stratified in storage process, conventionally the resin viscosity of selecting is higher, the resin of viscosity higher also easy and toner condenses, or toner particle reunion itself is in the process of ink-jet, easily occurs stopping up the phenomenon of shower nozzle, thereby increased shower nozzle loss, greatly increased production cost.
Summary of the invention
The features such as the shortcoming existing in order to overcome above-mentioned prior art, the invention provides a kind of instant of joining and disperse ink for ink-jet print and preparation method thereof, has ink saturation high, and short-term stability is good, and shower nozzle plugging rate is low, and cost is low.
For achieving the above object, technical scheme of the present invention is:
The invention provides a kind of instant of joining and disperse ink for ink-jet print, described ink is comprised of the raw material of following weight proportion: dispersed dye 4～10%, dispersion agent 10～30%, tensio-active agent 2～9%, sorbyl alcohol 10～15%, propylene glycol 10～15%, ethylene glycol 10～15%, defoamer 1%～2% and quaternary ammonium salt resin 5%～6%; The pH value of ink is 6.0～8.0;
Described dispersed dye are azoic dye, dyes of anthraquinone or heterocyclic type dyestuff, preferred described dispersed dye are Disperse Red, DISPERSE ORANGE 30 200, EX-SF DISPERSE BLUE EX-SF 300 or DISPERSE YELLOW, more preferably described dispersed dye are disperse red 60, Red-1 200 46, Red-1 200 79, dispersion red 11 8, Disperse Red 5, Red-1 200 9, Red 167, DISPERSE ORANGE 30 200 44, DISPERSE ORANGE 30 200 30, DISPERSE ORANGE 30 200 5, DISPERSE ORANGE 30 200 30, DISPERSE ORANGE 30 200 61, DISPERSE ORANGE 30 200 29, disperse orange 25, DISPERSE ORANGE 30 200 73, DISPERSE ORANGE 30 200 31, EX-SF DISPERSE BLUE EX-SF 300 72, EX-SF DISPERSE BLUE EX-SF 300 14, EX-SF DISPERSE BLUE EX-SF 300 3, Disperse Blue-79, EX-SF DISPERSE BLUE EX-SF 300 106, EX-SF DISPERSE BLUE EX-SF 300 26, EX-SF DISPERSE BLUE EX-SF 300 124, DISPERSE YELLOW 54, DISPERSE YELLOW 3, dispersion yellow 64, DISPERSE YELLOW 232, DISPERSE YELLOW 163, DISPERSE YELLOW 104, DISPERSE YELLOW 79 or DISPERSE YELLOW 55, disperse red 60 more preferably, a kind of or 3 kinds of combinations in DISPERSE YELLOW 54 or EX-SF DISPERSE BLUE EX-SF 300 72, disperse red 60 most preferably, a kind of or disperse red 60 in DISPERSE YELLOW 54 or EX-SF DISPERSE BLUE EX-SF 300 72, DISPERSE YELLOW 54 or EX-SF DISPERSE BLUE EX-SF 300 72 are with the mixing of mass ratio 1:1:1,
Described dispersion agent is anion surfactant, cationic surfactant, the mixing of one or both in nonionogenic tenside or amphoterics and above arbitrary proportion, described anion surfactant is sulfonated lignin, alkylbenzene sulfonate, alkylsulfonate, sulfonate, sulfonated α-olefin or fatty-acid ethyl ester sulfonate, non-ionic surface active is alkyl polyoxyethylene ether or polyoxyethylene carboxylate or fatty acid methyl ester ethoxylate, amphoterics is carboxylic acid group's trimethyl-glycine, sultaine or octadecyl dihydroxy ethyl ammonium oxide, preferred described dispersion agent is poly-naphthaldehyde naphthenic acid sodium salt, sodium lignosulfonate, dispersion agent NNO or dispersion agent 80,
Described tensio-active agent comprises PVOH type nonionogenic tenside, preferred alkyl phenol Soxylat A 25-7 (as OP-7, OP-10, OP-15), long-chain fat polyoxyethylenated alcohol (as peregal 0-25 or peregal 0-20) or alkynes ethanol modified surface promoting agent (as FS-640, FS-620 or FS-660);
Described defoamer is non-silicon defoamer, is preferably polyethers defoamer or acetylenic diols defoamer, more preferably a kind of or two kinds of mixing with arbitrary proportion in defoamer Surfynol DF-37 and defoamer Surfynol 110D.
The preferred quaternary ammonium salt anionite-exchange resin of described quaternary ammonium salt resin or quaternary ammonium salt cationic resin, more preferably quaternary ammonium salt epoxy resin, quaternary ammonium salt acrylamide resin (octyl allyl dimethyl ammonium chloride and acrylamide are with the multipolymer of mol ratio 1:40) or chromic acid hydrogen root quaternary ammonium resin.
Further, joining instant described in preferably disperses ink for ink-jet print to be comprised of the raw material of following weight proportion: dispersed dye 10～13%, dispersion agent 28～32%, tensio-active agent 10%, sorbyl alcohol 13～15%, propylene glycol 13～16%, ethylene glycol 14～17%, defoamer 1～2%%, quaternary ammonium salt resin 5～6%.
Further, joining instant described in preferably disperses ink for ink-jet print to be comprised of the raw material of following weight proportion: sorbyl alcohol 14.8%, propylene glycol 13.6%, ethylene glycol 17%, dispersion agent NNO28%, 9% tensio-active agent FS-640,1% defoamer Surfynol DF-37 and quaternary ammonium salt resin 5.7%.
Further, joining instant described in preferably disperses ink for ink-jet print to be comprised of the raw material of following weight proportion: 14.6% sorbyl alcohol, 14.6% propylene glycol, 15.7% ethylene glycol, 31.5% dispersion agent 80,7.9% Surfactant OP-7.0,1.1% defoamer Surfynol 110D and quaternary ammonium salt resin 5.6%.
Further, joining instant described in preferably disperses ink for ink-jet print to be comprised of the raw material of following weight proportion: 13.2% sorbyl alcohol, 15.4% propylene glycol, 14.3% ethylene glycol, 30.8% dispersion agent, 9.9% tensio-active agent FS-640,1.1% defoamer Surfynol DF-37,5.5% quaternary ammonium salt resin, dispersed dye 9.9%; Described dispersed dye are that C.I. EX-SF DISPERSE BLUE EX-SF 300 72, C.I. DISPERSE YELLOW 54 and C.I. disperse red 60 are with the mixing of mass ratio 1:1:1.
The present invention also provides a kind of compound method that instant disperses ink for ink-jet print of joining, and described method is carried out as follows:
(1) press formula ratio, sorbyl alcohol, propylene glycol and ethylene glycol are added in dispersion agent, then add tensio-active agent and the defoamer that accounts for formulation weight 50%, (preferred 30min, speed is 250rpm) stirs;
(2) to adding in the solution of step (2), account for the quaternary ammonium salt resin of formulation weight 60% and be uniformly dispersed (preferably dispersion rate is 1000rpm, and jitter time is 30min);
(3) in step (2) gained solution, slowly add formula ratio dispersed dye, (preferably rate of dispersion is 1000rpm, and churning time is 60min) is uniformly dispersed;
(4) solution of step (3) gained is ground to D50 and is less than 450nm (using Ma Erwen laser particle analyzer to detect respectively D50 and D95) at 150～190nm and D95;
(5) in step (4) gained solution, add the quaternary ammonium salt resin that accounts for formulation weight 40% and the defoamer that accounts for formulation weight 50%, (preferably dispersion rate is 1000rpm, and dispersion churning time is 60min) is uniformly dispersed;
(6) by the solution filter of step (5) gained, (preferably with the strainer of aperture 0.8～1.2 μ m, filtering, preferably 1.0 μ m), the ink after filtration (being filtrate) filling and sealing stores, control store temperature is 4～27 ℃, and in 2 months, uses this ink.
The invention has the beneficial effects as follows:
1, disperseing on the formula of ink for ink-jet print, removing the general auxiliary agent such as anticorrosion, antirust, but added these 3 kinds of alcohol analog assistants of sorbyl alcohol, propylene glycol and ethylene glycol, reducing the impacts of auxiliary agent on ink colors such as anticorrosion, antirust; And the resin replacement of viscosity higher is become to the quaternary ammonium salt resin that viscosity is lower, and reduce the cohesion of resin and toner, reduce the obstruction of shower nozzle and loss, greatly saved cost;
2, the mixed grinding technique of dispersed dye and resin is adjusted into " disperse-grind-interpolation resin-dispersion " by traditional " adding resin-dispersion-grinding ", technique after adjustment has reduced the buffer action of resin to dispersed dye in process of lapping, improved mill efficiency, reduce the consumption of zirconium pearl, reduced cost;
3, adjusted the adding technology of tensio-active agent and defoamer, defoamer adds respectively before grinding and after grinding, and has increased the mill efficiency of dispersed dye.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further.
Embodiment of the present invention quaternary ammonium salt resin used is quaternary ammonium salt acrylamide resin (being that octyl allyl dimethyl ammonium chloride and acrylamide are with the multipolymer of mol ratio 1:40).
Embodiment 1: the preparation of blue ink
Taking 13g sorbyl alcohol, 12g propylene glycol and 15g ethylene glycol is dispersed in 25g dispersion agent NNO, in whipping process, add 8g tensio-active agent FS-640 and 0.5g defoamer Surfynol DF-37, stir after 30min, then add 3g quaternary ammonium salt resin to continue to stir 30min; Add again after the rear stirring of 9gC.I. EX-SF DISPERSE BLUE EX-SF 300 72 60min, put into shredder and fully grind 180min; Then add 2g quaternary ammonium salt resin and 0.5g defoamer Surfynol DF-37 to disperse, after 60min, with the strainer that aperture is 1.0 μ m, filter, obtain blue dispersible ink, after filling and sealing storage, having temperature is 4～27 ℃ indoor, and in 2 months, uses this ink.
The physical and chemical indexes of prepared blue ink at 20 ℃ is: surface tension is 32.8mN/m, viscosity 3.51mpa.s, pH value 7.4.Print result by the blue ink making on large high-speed ink-jet decorating machine shows: this blue ink saturation ratio is high, and color and luster is saturated, and stability is stronger in a short time; In 3 months of test use, the plugging rate of shower nozzle is only half of the traditional dispersible ink of use, less to the loss of shower nozzle, greatly provides cost savings simultaneously.
Embodiment 2: the preparation of red ink
Taking 13g sorbyl alcohol, 13g propylene glycol and 14g ethylene glycol is dispersed in 28g dispersion agent 80, in whipping process, add 7g Surfactant OP-7.0 and 0.5g defoamer Surfynol 110D, stir after 30min, then add 3g quaternary ammonium salt resin to continue to stir 30min; Then after adding 8gC.I. disperse red 60, stir after 60min, put into shredder and fully grind 180min; Again add 2g quaternary ammonium salt resin and 0.5g defoamer Surfynol 110D to disperse, after 60min, with the strainer that aperture is 1.0 μ m, filter and obtain red dispersible ink, after filling and sealing storage, having temperature is 4～27 ℃ indoor, and in 2 months, uses this ink.
The physical and chemical indexes of prepared red ink at 20 ℃ is: surface tension is 32.4mN/m, viscosity 4.27mpa.s, pH value 7.7.Print result by the red ink making on large high-speed ink-jet decorating machine shows: this red ink saturation ratio is high, and color and luster is saturated, and stability is stronger in a short time; In 3 months of test use, the plugging rate of shower nozzle is only half of the traditional dispersible ink of use, less to the loss of shower nozzle, greatly provides cost savings simultaneously.
Embodiment 3: the preparation of yellow ink
Taking 12g sorbyl alcohol, 14g propylene glycol and 13g ethylene glycol is dispersed in 28g dispersion agent NNO, in whipping process, add 9g tensio-active agent peregal 0-25 and 0.5g defoamer Surfynol 110D, stir after 30min, then add 3g quaternary ammonium salt resin to continue to stir 30min; Then add after the rear stirring of 9gC.I. DISPERSE YELLOW 54 60min, put into shredder and fully grind 180min; Again add 2g quaternary ammonium salt resin and 0.5g defoamer Surfynol 110D to disperse, after 60min, with the strainer that aperture is 1.0 μ m, filter and obtain yellow dispersible ink, after filling and sealing storage, having temperature is 4～27 ℃ indoor, and in 2 months, uses this ink.
The physical and chemical indexes of prepared yellow ink at 20 ℃ is: surface tension is 34.8mN/m, viscosity 4.15mpa.s, pH value 7.5.Print result by the yellow ink making on large high-speed ink-jet decorating machine shows: this yellow ink saturation ratio is high, and color and luster is saturated, and stability is stronger in a short time; In 3 months of test use, the plugging rate of shower nozzle is only half of the traditional dispersible ink of use, less to the loss of shower nozzle, greatly provides cost savings simultaneously.
Embodiment 4: the preparation of black ink
Taking 12g sorbyl alcohol, 14g propylene glycol and 13g ethylene glycol is dispersed in 28g dispersion agent, in whipping process, add 9g tensio-active agent FS-640 and 0.5g defoamer Surfynol DF-37, stir after 30min, then add 3g quaternary ammonium salt resin to continue to stir 30min; Then after adding 3gC.I. EX-SF DISPERSE BLUE EX-SF 300 72,3gC.I. DISPERSE YELLOW 54 and 3gC.I. disperse red 60, stir after 60min, put into shredder and fully grind 180min; Again add 2g quaternary ammonium salt resin and 0.5g defoamer Surfynol DF-37 to disperse, after 60min, with the strainer that aperture is 1.0 μ m, filter and obtain yellow dispersible ink, after filling and sealing storage, having temperature is 4～27 ℃ indoor, and in 2 months, uses this ink.
The physical and chemical indexes of prepared black ink at 20 ℃ is: surface tension is 36.4mN/m, viscosity 3.84mpa.s, pH value 6.8.Print result by the black dispersible ink making on large high-speed ink-jet decorating machine shows: this black disperses ink saturation high, and color and luster is saturated, and stability is stronger in a short time; In 3 months of test use, the plugging rate of shower nozzle is only half of the traditional dispersible ink of use, less to the loss of shower nozzle, greatly provides cost savings simultaneously.
The prepared ink of above-described embodiment 1-4 is carried out to the test of ink rationalization performance, and the item of its mensuration and the parameter of gained are as shown in table 1 below:
Table 1
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Surface tension is (mN/m) | 32.8 | 32.4 | 34.8 | 36.4 |
| Viscosity (mpa.s/25 ℃) | 3.51 | 4.27 | 4.15 | 3.84 |
| pH | 7.4 | 7.7 | 7.5 | 6.8 |
| Shower nozzle plugging rate (%) | 10 | 8 | 7 | 11 |
The prepared ink of traditional technology is carried out to the test of ink rationalization performance, and the item of its mensuration and the parameter of gained are as shown in table 2 below:
Table 2
| Project | Blue ink | Red ink | Yellow ink | Black ink |
| Surface tension is (mN/m) | 31.5 | 32.9 | 33.5 | 37.5 |
| Viscosity (mpa.s/25 ℃) | 3.63 | 4.11 | 3.89 | 3.72 |
| pH | 7.1 | 7.8 | 7.2 | 6.9 |
| Shower nozzle plugging rate (%) | 22 | 15 | 16 | 25 |
Known according to mensuration item and the parameter of table 1 and table 2, the dispersible ink effect of the dispersible ink of the blending process indication that the present invention adopts and traditional technology preparation is suitable.But shower nozzle of the same type is used respectively two kinds of dispersible inks 3 months, result shows that the dispersible ink shower nozzle plugging rate of compound method of the present invention is only traditional dispersible ink to half of shower nozzle plugging rate.
Claims (10)
1. join instant dispersion ink for ink-jet print for one kind, it is characterized in that, described ink is comprised of the raw material of following weight proportion: dispersed dye 4～11%, dispersion agent 10～32%, tensio-active agent 2～10%, sorbyl alcohol 10～15%, propylene glycol 10～16%, ethylene glycol 10～18%, defoamer 1%～2% and quaternary ammonium salt resin 5%～6%;
Described dispersed dye are azoic dye, dyes of anthraquinone or heterocyclic type dyestuff, described dispersion agent is anion surfactant, cationic surfactant, the mixing of one or both in nonionogenic tenside or amphoterics and above arbitrary proportion, described anion surfactant is sulfonated lignin, alkylbenzene sulfonate, alkylsulfonate, sulfonate, sulfonated α-olefin or fatty-acid ethyl ester sulfonate, non-ionic surface active is alkyl polyoxyethylene ether or polyoxyethylene carboxylate or fatty acid methyl ester ethoxylate, amphoterics is carboxylic acid group's trimethyl-glycine, sultaine or octadecyl dihydroxy ethyl ammonium oxide, described defoamer is polyethers defoamer or acetylenic diols defoamer.
2. join as claimed in claim 1 instant and disperse ink for ink-jet print, it is characterized in that, described ink is comprised of the raw material of following weight proportion: dispersed dye 10～13%, dispersion agent 28～32%, tensio-active agent 10%, sorbyl alcohol 13～15%, propylene glycol 13～16%, ethylene glycol 14～17%, defoamer 1～2%% and quaternary ammonium salt resin 5～6%.
3. join as claimed in claim 1 instant and disperse ink for ink-jet print, it is characterized in that, described dispersed dye are Disperse Red, DISPERSE ORANGE 30 200, EX-SF DISPERSE BLUE EX-SF 300 or DISPERSE YELLOW.
4. join as claimed in claim 1 instant and disperse ink for ink-jet print, it is characterized in that, described dispersion agent is poly-naphthaldehyde naphthenic acid sodium salt, sodium lignosulfonate, dispersion agent NNO or dispersion agent 80.
5. join as claimed in claim 1 instant and disperse ink for ink-jet print, it is characterized in that, described ink is comprised of the raw material of following weight proportion: sorbyl alcohol 14.8%, propylene glycol 13.6%, ethylene glycol 17%, dispersion agent NNO28%, 9% tensio-active agent FS-640,1% defoamer Surfynol DF-37 and quaternary ammonium salt acrylamide resin 5.7%, described quaternary ammonium salt acrylamide resin is that octyl allyl dimethyl ammonium chloride and acrylamide are with the multipolymer of mol ratio 1:40.
6. join as claimed in claim 1 instant and disperse ink for ink-jet print, it is characterized in that, described ink is comprised of the raw material of following weight proportion: 14.6% sorbyl alcohol, 14.6% propylene glycol, 15.7% ethylene glycol, 31.5% dispersion agent 80,7.9% Surfactant OP-7.0,1.1% defoamer Surfynol 110D and quaternary ammonium salt acrylamide resin 5.6%, described quaternary ammonium salt acrylamide resin is that octyl allyl dimethyl ammonium chloride and acrylamide are with the multipolymer of mol ratio 1:40.
7. join as claimed in claim 1 instant and disperse ink for ink-jet print, it is characterized in that, described ink is comprised of the raw material of following weight proportion: 13.2% sorbyl alcohol, 15.4% propylene glycol, 14.3% ethylene glycol, 30.8% dispersion agent, 9.9% tensio-active agent FS-640,1.1% defoamer Surfynol DF-37, dispersed dye 9.9% and quaternary ammonium salt acrylamide resin 5.5%; Described quaternary ammonium salt acrylamide resin be octyl allyl dimethyl ammonium chloride and acrylamide with the multipolymer of mol ratio 1:40, described dispersed dye are that C.I. EX-SF DISPERSE BLUE EX-SF 300 72, C.I. DISPERSE YELLOW 54 and C.I. disperse red 60 are with the mixing of mass ratio 1:1:1.
8. join the compound method that instant disperses ink for ink-jet print, it is characterized in that described method carries out as follows:
(1) press formula ratio, sorbyl alcohol, propylene glycol and ethylene glycol are dispersed in dispersion agent, then add tensio-active agent and the defoamer that accounts for formulation weight 50%, stir;
(2) to adding and account for the quaternary ammonium salt resin of formulation weight 60% and be uniformly dispersed in the solution of step (2) gained;
(3) in step (2) gained solution, slowly add formula ratio dispersed dye, be uniformly dispersed;
(4) step (3) solution is ground to D50 and is less than 450nm at 150～190nm and D95;
(5) in the solution after grinding to step (4), add the quaternary ammonium salt resin that accounts for formulation weight 40% and the defoamer that accounts for formulation weight 50%, be uniformly dispersed;
(6), by the solution filter of step (5) gained, filtrate is joins instant dispersion ink for ink-jet print.
9. join as claimed in claim 8 the compound method that instant disperses ink for ink-jet print, it is characterized in that the rate of dispersion in step (1), (2), (3) and (5) is 250～1000rpm.
10. join as claimed in claim 8 the compound method that instant disperses ink for ink-jet print, it is characterized in that the described filtration of step (6) adopts the strainer of aperture 0.8～1.2 μ m to filter.
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| CN106590178A (en) * | 2016-11-28 | 2017-04-26 | 南通纳威数码材料科技有限公司 | Ultrafine disperse dye red color paste and preparation method of same |
| CN106752393A (en) * | 2016-11-28 | 2017-05-31 | 南通纳威数码材料科技有限公司 | A kind of superfine disperse dye blueness mill base and preparation method thereof |
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| CN106497238A (en) * | 2016-11-28 | 2017-03-15 | 南通纳威数码材料科技有限公司 | A kind of superfine disperse dye yellow mill base and preparation method thereof |
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| CN107325643A (en) * | 2017-08-07 | 2017-11-07 | 广东科达洁能股份有限公司 | A kind of ink tested for ceramic ink jet printer shower nozzle and preparation method thereof |
| CN111235910A (en) * | 2020-03-31 | 2020-06-05 | 南通纺织丝绸产业技术研究院 | Water-based nano disperse dye for soft finishing and application thereof |
| CN111235910B (en) * | 2020-03-31 | 2022-06-14 | 南通纺织丝绸产业技术研究院 | Water-based nano disperse dye for soft finishing and application thereof |
| WO2021196103A1 (en) * | 2020-04-01 | 2021-10-07 | 南通纺织丝绸产业技术研究院 | Water-based nano disperse dye useful for softening finishing and use thereof |
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Application publication date: 20141008 |