CN103396700B - Eco-solvent disperse dye ink for digital inkjet printing of textiles and preparation method of eco-solvent disperse dye ink - Google Patents

Abstract

The invention discloses eco-solvent disperse dye ink for digital inkjet printing of textiles and a preparation method of the eco-solvent disperse dye ink. The eco-solvent disperse dye ink comprises the following components in parts by weight: 1-10 parts of disperse dye, 1-5 parts of a dispersant, 60-80 parts of an organic eco-solvent, 1-20 parts of vinyl pyrrolidone homopolymer or copolymer and 1-5 parts of a surfactant. Compared with the prior art, the eco-solvent disperse dye has the advantages that the disperse dye in the ink is small in fineness and high in dispersion stability; the eco-solvent disperse dye ink is used for inkjet printing of synthetic fiber textiles and is smooth in ink discharge, fast in drying speed and bright and vivid in color.

Description

Digital ink-jet printed Weak solvent disperse dye ink of a kind of textiles and preparation method thereof

Technical field

The present invention relates to digital color spray ink Printing consumptive material field, be specifically related to digital ink-jet printed Weak solvent disperse dye ink of a kind of textiles and preparation method thereof.

Background technology

Inkjet technology is by a kind of new digital imaging technique of printing of inkjet printer on ink-absorbing medium by digitized image, due to its have operating procedure simple, without the need to plate-making, non-pollution discharge, have the advantages such as personalization, be widely used in the digit printing of textiles, wherein applied comparatively early, output is larger should belong to ink-jet printed for the synthesis of fiber textile of disperse dye ink.

Disperse dye ink-jet ink, is broadly divided into the ultraviolet light solidified ink just developed water-base ink, solvent-based inks and recent years by the difference of Main Components.Aqueous dispersion dye ink principal feature adopts water to be solvent, with low cost, not do not pollute, but due to the boiling point of water higher, cause ink dried speed slow; In addition, because dispersed dye are slightly water-soluble disperse dye, exist with suspended particle state in water, be easy to assemble and precipitation, which increase difficulty prepared by aqueous dispersion dye ink, the aqueous dispersion dye ink quality of current domestic production is compared with external imported product also exists that particle diameter is comparatively large, skewness, easily aggregate and precipitate even block the deficiencies such as shower nozzle; Ultraviolet curing ink jet ink is more late due to development, does not also have large-scale application at present; Traditional solvent-based inks main ingredient is organic solvent, generally all adopts the strong solvent such as ester and ketone, and ink evaporation rate is fast, the requirement of flying print can be met, but due to used strong solvent not environmentally, pungency is large, be harmful to health, and stopped using gradually.

Under such circumstances, environmentally-frieweak weak solvent type inkjet ink arises at the historic moment, and it uses organic Weak solvent, as alcohols, ethers, low molecule ester class.Compared with traditional strong solvent, this kind of organic solvent toxic is little, environmental friendliness, also greatly reduces the requirement of shelter produced and use; Compared with water-base ink, organic Weak solvent has solublization to dispersed dye, thus contribute to the grinding refinement of dispersed dye, make dye granule particle diameter less, effectively improve the sedimentation layering of ink and dyestuff macrobead to problems such as the blockings of shower nozzle, Weak solvent ink remains the advantage that solvent-based inks evaporation rate is fast, meet flying print requirement simultaneously, and therefore development is rapidly, very popular.

V-Pyrol RC homopolymer or be non-ionic macromolecule compound with acetate ethylene copolymer; as a kind of synthesizing water-solubility macromolecular compound; there is the effects such as colloid protection, film forming, bonding, moisture absorption, solubilising; and there is excellent solubility property and physiological compatibility, therefore in medicine, food, makeup etc. with the closely-related field of health of people, obtain larger application.In addition, V-Pyrol RC homopolymer or multipolymer also have this feature good with organic dye avidity, if be applied in ink-jet printing ink, PVP (or PVP/VA) time ink-jet printed in ink and the hydrophobic synthetic fibres such as polyacrylonitrile, ester, nylon in conjunction with time, the avidity of fiber to dyestuff can be increased, improve dyeing keratin-fiber power, thus make textile inkjet printing color more bright-coloured, true to nature.But this Study and appliance is on the one hand also more rarely seen report on document at home and abroad.

Summary of the invention

Goal of the invention: the object of the invention is to make up the deficiencies in the prior art, provide a kind of digital ink-jet printed for textiles, ink-jet is smooth, bright in luster, environment amenable environmentally-frieweak weak solvent type Disperse dye ink-jet ink, second object of the present invention there is provided the preparation method of this ink for ink-jet print.

Technical scheme: the digital ink-jet printed Weak solvent disperse dye ink of a kind of textiles, comprises following weight proportion component:

As preferably, dispersed dye used are disperse red 60s, DISPERSE YELLOW 54, one or more in Disperse Blue-56.

As preferably, dispersion agent is non-ionic type macromolecule dispersing agent: alkylphenol polyoxyethylene condenses; Fatty alcohol-polyoxyethylene ether condenses, polyvalent alcohol polyoxyethylene ether fatty ester series; One or more in the multi-component copolymer products such as vinylbenzene, acrylate, fumaric acid or maleic anhydride.

As preferably, organic Weak solvent is one or more in ethylene glycol monomethyl ether, butyl glycol ether, propylene glycol monomethyl ether, propandiol butyl ether, dipropylene glycol methyl ether, dipropylene, dimethyl ether, glycol methyl ether acetate, 2-Butoxyethyl acetate, 1-Methoxy-2-propyl acetate, propandiol butyl ether acetic ester, dipropylene glycol methyl ether acetate, 2-Pyrrolidone, METHYLPYRROLIDONE.

As preferably, V-Pyrol RC homopolymer is K series, and as K15, K17, K25, K30, K60, K90, or it is serial with acetate ethylene copolymer PVP/VA, as one or more in VA73E, VA64E, VA55E, VA46E, VA37E.

In order to ensure ink-jet adaptability and other performances of ink, the tensio-active agent of some indispensabilities of adding in the ink, comprise wetting agent, pH buffer reagent, defoamer, sanitas.

Make each ink and comprise red, yellow, blue, pale red, light blue, black six kinds of colors, wherein in pale red and light blue ink, dye strength is half that is red, blue ink dye strength, black ink dispersed dye used by disperse red 60, DISPERSE YELLOW 54, Disperse Blue-56 is composite forms, compound proportion is 4: 1: 5.

Particle Size of Disperse Dyes in the ink of preparation is between 10-500 nanometer, and viscosity is between 1-10mPas, and surface tension is between 30-40 dyne, and pH value is between 5-7.

A preparation method for the digital ink-jet printed Weak solvent disperse dye ink of textiles, comprises following steps:

Above-mentioned dispersion agent, V-Pyrol RC homopolymer or multipolymer and tensio-active agent are dissolved in organic Weak solvent according to proportioning, then add dispersed dye, stir 30 minutes under being placed in stirrer, form pre-dispersed liquid;

Pre-dispersed liquid is transferred to the grinding of sand mill high speed 1-5 hour, carry out centrifugal treating with in supercentrifuge after discharging, isolate dyestuff macrobead, then use 500 nanometer micropore membrane filtrations, again through leaving standstill froth breaking, filling, pack, namely obtain ink.

Beneficial effect: compared to the prior art, the solvent of employing is organic Weak solvent, not containing benezene, toluene, dimethylbenzene, the toxic solvents such as pimelinketone, and pungency is minimum, environmentally friendly in the present invention, rate of drying is fast simultaneously, can meet the requirement of flying print; Kollidone 90F PVP or itself and acetate ethylene copolymer PVP/VA is also added in ink, as polymeric surface active agent, it has following two aspect special-effects: on the one hand, PVP (or PVP/VA) is coated on dispersed dye surface, there is the special-effect such as dispersion, resistant to aggregation precipitation, both contributed to the grinding refinement of dispersed dye, the dispersion stabilization of prepared ink can have been improved again; On the other hand, PVP (or PVP/VA) and organic dye have good avidity, PVP (or PVP/VA) time ink-jet printed in ink and the hydrophobic synthetic fibres such as polyacrylonitrile, ester, nylon in conjunction with time, the avidity of fiber to dyestuff can be increased, improve dyeing keratin-fiber power, thus make textile inkjet printing color more bright-coloured, true to nature.

Embodiment

Specific embodiment 1:

The preparation of red ink: by 3kg alkyl alcohol ethoxylates division powder IW, 2kg alkylphenol polyoxyethylene dispersion agent OP-20, 10kg V-Pyrol RC homopolymer K30, 3kg wetting agent, 0.5kg defoamer, 0.5kg sanitas, 1kg pH buffer reagent is dissolved in 50kg propylene glycol monomethyl ether, 6kg dipropylene, in the mixed solvent of 14kg 1-Methoxy-2-propyl acetate composition, add 10kg dispersed dye red 60 again, stir 30 minutes under being placed in stirrer, pre-dispersed liquid is transferred to sand mill high speed and grinds 4 hours, with carrying out centrifugal treating in supercentrifuge 30 minutes after discharging, then 500 nanometer micropore membrane filtrations are used, again through leaving standstill froth breaking, filling, pack, namely textiles digital ink-jet printed Weak solvent dispersed dye red ink finished product is obtained.Dispersed dye median size in ink is 145 nanometers, and viscosity is at 6mPas, and surface tension is 34mN/m, and pH value is 6.3, and ink is for the synthesis of fiber textile spray ink Printing, and smoothness out of ink, rate of drying are fast, bright in luster, true to nature.

Specific embodiment 2:

The preparation of yellow ink: by 2kg polyvalent alcohol polyoxyethylene ether fatty ester dispersion agent tween 80, 3kg vinylbenzene, the multi-component copolymer dispersion agent SMA such as acrylate, 15kg V-Pyrol RC homopolymer K25, 2.5kg wetting agent, 1kg defoamer, 0.5kg sanitas, 1kg pH buffer reagent is dissolved in 20kg dipropylene glycol methyl ether, 30kg 1-Methoxy-2-propyl acetate, in the mixed solvent of 20kg METHYLPYRROLIDONE composition, add 10kg dispersed dye Huang 54 again, stir 30 minutes under being placed in stirrer, pre-dispersed liquid is transferred to sand mill high speed and grinds 4 hours, with carrying out centrifugal treating in supercentrifuge 30 minutes after discharging, then 500 nanometer micropore membrane filtrations are used, again through leaving standstill froth breaking, filling, pack, namely textiles digital ink-jet printed Weak solvent dispersed dye yellow ink finished product is obtained.Dispersed dye median size in ink is 137 nanometers, and viscosity is at 4.5mPas, and surface tension is 31mN/m, and pH value is 6.5, and ink is for the synthesis of fiber textile spray ink Printing, and smoothness out of ink, rate of drying are fast, bright in luster, true to nature.

Specific embodiment 3:

The preparation of blue ink: by 3kg isomery ten polyoxyethylenated alcohol dispersion agent E-09, 2kg castor oil polyoxyethylene ether dispersion agent EL-30, 5kg V-Pyrol RC homopolymer K30, 5kg V-Pyrol RC acetate ethylene copolymer VA55E, 2.5kg wetting agent, 1kg defoamer, 0.5kg sanitas, 1kg pH buffer reagent is dissolved in 40kg dipropylene glycol methyl ether, 20kg propandiol butyl ether acetic ester, in the mixed solvent of 10kg2-pyrrolidone composition, add 5kg dispersed dye indigo plant 56 again, stir 30 minutes under being placed in stirrer, pre-dispersed liquid is transferred to sand mill high speed and grinds 5 hours, with carrying out centrifugal treating in supercentrifuge 30 minutes after discharging, then 500 nanometer micropore membrane filtrations are used, again through leaving standstill froth breaking, filling, pack, namely textiles digital ink-jet printed Weak solvent dispersed dye blue ink finished product is obtained.Dispersed dye median size in ink is 151 nanometers, and viscosity is at 6.1mPas, and surface tension is 32.3mN/m, and pH value is 6.6, and ink is for the synthesis of fiber textile spray ink Printing, and smoothness out of ink, rate of drying are fast, bright in luster, true to nature.

Specific embodiment 4:

The preparation of black ink: by 5kg alkylphenol polyoxyethylene dispersion agent peregal 0-20, 10kg V-Pyrol RC acetate ethylene copolymer VA46E, 2.5kg wetting agent, 1kg defoamer, 0.5kg sanitas, 1kg pH buffer reagent is dissolved in 20kg dipropylene glycol methyl ether, 40kg 1-Methoxy-2-propyl acetate, in the mixed solvent of 10kg2-pyrrolidone composition, add 4kg dispersed dye red 60 again, 1kg dispersed dye yellow 54 and 5kg dispersed dye indigo plant 56, stir 30 minutes under being placed in stirrer, pre-dispersed liquid is transferred to sand mill high speed and grinds 1 hour, with carrying out centrifugal treating in supercentrifuge 30 minutes after discharging, then 500 nanometer micropore membrane filtrations are used, again through leaving standstill froth breaking, filling, pack, namely textiles digital ink-jet printed Weak solvent dispersed dye black ink finished product is obtained.Dispersed dye median size in ink is 151 nanometers, and viscosity is at 6.9mPas, and surface tension is 32.3mN/m, and pH value is 6.6, and ink is for the synthesis of fiber textile spray ink Printing, and smoothness out of ink, rate of drying are fast, bright in luster, true to nature.

Specific embodiment 5:

The preparation of light red ink: specific embodiment 5 and specific embodiment 1 unanimous on the whole, uniquely reduce to half unlike red 60 consumptions of dispersed dye.

Specific embodiment 6:

The preparation of light blue ink: specific embodiment 6 and specific embodiment 3 unanimous on the whole, uniquely reduce to half unlike blue 56 consumptions of dispersed dye.

Claims (1)

1. a preparation method for the digital ink-jet printed Weak solvent disperse dye ink of textiles, is characterized in that:

Described textiles digital ink-jet printed Weak solvent disperse dye ink comprises following weight proportion component:

Dispersion agent is one or more in alkylphenol polyoxyethylene condenses, fatty alcohol-polyoxyethylene ether condenses;

Organic Weak solvent selected by solvent: one or more in propandiol butyl ether, dipropylene, glycol methyl ether acetate, propandiol butyl ether acetic ester, 2-Pyrrolidone;

Described nvp copolymer is one or more in V-Pyrol RC and acetate ethylene copolymer PVP/VA series;

The ink of preparation comprises red, yellow, blue, pale red, light blue, black six kinds of colors, wherein in pale red and light blue ink, dye strength is half that is red, blue ink dye strength, black ink dispersed dye used by disperse red 60, DISPERSE YELLOW 54, Disperse Blue-56 is composite forms, composite weight ratio is 4:1:5;

Its preparation comprises following steps:

Above-mentioned dispersion agent, nvp copolymer and tensio-active agent are dissolved in organic Weak solvent according to proportioning, then add dispersed dye, stir 30 minutes under being placed in stirrer, form pre-dispersed liquid;

Pre-dispersed liquid is transferred to the grinding of sand mill high speed 1-5 hour, carry out centrifugal treating with in supercentrifuge after discharging, isolate dyestuff macrobead, then use 500 nanometer micropore membrane filtrations, again through leaving standstill froth breaking, filling, pack, namely obtain ink;

Particle Size of Disperse Dyes in the ink of preparation is between 10-500 nanometer, and viscosity is between 1-10mPas, and surface tension is between 30-40 dyne, and pH value is between 5-7.