Background technology
In traditional textile printing technology, stamp all needs to make a plate in advance on yarn fabric, and some printing technology needs pre-treatment and aftertreatment, and all can produce water pollution problems in the process of plate-making or pre-treatment, aftertreatment.In addition, traditional yarn fabric printing technology need carry out in batches, and feasible production technology and final product quality to stamp all has high requirement.
Digital ink-jet printed technology is a kind of new textile printing technology, and it is that dedicated dye ink or paint ink are passed through the direct spray printing of ink-jet printer on textiles.The digital ink-jet printed ink of dye-type is divided into reactive dyestuffs type, acidic dye type and dispersed dye type ink, all contain formaldehyde in these inks, chemical reaction takes place in dyestuff in its ink and yarn fabric (as wool, cotton, terylene etc.), thereby pattern is attached on the yarn fabric.At present, use the thermal sublimation digit printing of dispersed dye type ink to be used widely, but must printing to pattern on the special-purpose heat sublimation paper, this stamp mode carries out thermal dye sublimation transfer printing again, and be confined to resistant to elevated temperatures terylene cloth, and can not be used for the cloth that cotton textiles wait some non-refractories, and it is digital ink-jet printed no matter to be to use active ink or acid ink to carry out, and all must carry out pre-treatment and aftertreatment to yarn fabric, and light fastness and washing fastness are all poor.
Summary of the invention
The present invention is intended to address the above problem, and provides a kind of formaldehydeless, makes digital ink-jet printed yarn fabric satisfy the environment-friendly digital ink-jet direct printing textile ink of high environmental protection, high quality requirement.
The present invention also aims to provide a kind of preparation method of this stamp textile ink.
For achieving the above object, the invention provides a kind of environment-friendly digital ink-jet direct printing textile ink, this ink is the mixture of following component by weight percentage:
Dispersible pigment color paste 12~55
Connect material 5~20
Linking agent 5~20
Softening agent 2~15
Solvent 5~20
Tensio-active agent 0.2~2
Sterilant 0.2~1
PH regulator agent 0.2~2
Deionized water 20~40.
The preferred weight per distribution ratio of described dispersible pigment color paste is:
Pigment 15~30
Hyper-dispersant 15~30
Wetting agent 15~30
Deionized water 10~40.
Specifically, pigment is selected from one or more the combination in Pigment black (C.I.Pigment Black), pigment green grass or young crops (C.I.Pigment Cyan), pigment fuchsin (C.I.Pigment Magenta), Pigment blue (C.I.Pigment Blue), Pigment red (C.I.Pigment Red), Pigment Yellow 73 (C.I.Pigment Yellow), pigment orange (C.I.Pigment Orange), the Pigment green (C.I.Pigment Green); Described hyper-dispersant is a non-ionic polymer; Described wetting agent is selected from a kind of in propylene glycol, glycerine, the glycol ether.Described hyper-dispersant is used for the ground pigment mill base, improves the wettability and the glossiness of pigment, lowers to grind viscosity, makes to keep stable between the granules of pigments in the mill base mutually, and prevents that effectively pigment from the phenomenon of flocculation taking place; Wetting agent is used to prevent that ink is dried at the shower nozzle place of printer, guarantees that ink has outstanding stability when the printer closing condition, and does not stop up shower nozzle; Deionized water is in order to guarantee the purity of ink, to make ink can not produce the crystalline phenomenon and plug nozzle.
Described connection material is polyacrylic polymer or ACRYLIC EMULSION, and linking agent is self-crosslinking acrylic resin or waterborne polyurethane resin, and softening agent is selected from a kind of in quadrol, diethylenetriamine, the triethylene tetramine.Described connection material, linking agent, softening agent can make color pigments have good washing fastness, photostabilization on yarn fabric, and soft.
Solvent is selected from a kind of in N~methyl-2-pyrrolidone, 2-methyl-2-pyrrolidone, the diethylene glycol ether, and it is used to increase solvability and dispersiveness.
Tensio-active agent is the low foam surface activity agent of nonionic, and its surface tension that is used to control ink makes ink have the ideal diffustivity at 20-50, thereby guarantees the quality of printing.
Sterilant is the isothiazolinone biocide agent, and it is used to suppress growing of bacterium; Described pH regulator agent is trolamine or dimethylethanolamine, and it is used to keep the scope of the pH value of ink at 7-9, guarantees the solvability of each composition in ink.
Deionized water in the ink is the carrier of ink, and the purity that it is used to guarantee ink makes ink can not produce the crystalline phenomenon and plug nozzle.
The present invention also provides the preparation method of this stamp textile ink, and this method comprises the steps:
A, be that 15~30% pigment, 15~30% hyper-dispersant, 15~30% wetting agent and 10~40% deionized water are mixed into dispersible pigment color paste with weight percent content, with dispersible pigment color paste high-speed stirring 30~60 minutes, nano level superfine grinding machine for grinding 8~16 hours, obtain nano level superfine particle mill base then;
B, the nano level superfine particle mill base after the mixture of 5~8 parts described proportionings and 2~4 parts the grinding is mixed the back high-speed stirring 30~60 minutes, then after filtration, obtain environment-friendly digital ink-jet direct printing textile ink finished product.
Contribution of the present invention is that it efficiently solves in the existing digital ink-jet printed ink and is easy to problems such as environment pollute because of containing formaldehyde, and it has the following advantages:
One, digital ink-jet printed ink of the present invention can directly carry out digit printing to yarn fabric, incalculability and restriction in batches, can select pattern that the single-piece clothes is carried out stamp flexibly, thereby demand that can very big satisfying personalized product, complied with the international propensity to consume by the trend of standardised prod toward the personalized product development.
Two, digital ink-jet printed ink of the present invention can directly carry out digit printing to yarn fabric, need not plate-making, need not yarn fabric is carried out pre-treatment and aftertreatment, therefore can not produce the water pollution problems of sewage discharge and traditional silk-screen, and formaldehydeless printed textile provides health reassurance for the mankind and the Nature.
Three, digital ink-jet printed ink of the present invention can pass through directly stamp on yarn fabric of digital ink-jet printed flat-panel printer, need not to carry out pre-process and post-process, the yarn fabric of having printed only needs to dry in the 150-180 degree, photostabilization reaches the 7-8 level, washing fastness reaches the 4-5 level, reaches children's direct cutaneous contact class rank.
Four, use the decalcomania of digital ink-jet printed ink of the present invention to compare with traditional silk-screen, pattern bright-coloured meticulous, the transition color abundant, soft.
Embodiment
The following example is to further explanation of the present invention and explanation, and the present invention is not constituted any limitation.
One, the preparation of dispersible pigment color paste:
Get any two parts in Pigment black, pigment green grass or young crops, pigment fuchsin, Pigment Yellow 73, Pigment red, Pigment blue, pigment orange, the Pigment green by weight, two parts of hyper-dispersants, two parts of wetting agent glycol ethers, in four parts of adding reaction vessels of deionized water, under the high-speed stirring condition, mixed 50 minutes, form the mill base mixture, then with the mill base mixture nano level superfine grinding machine for grinding 12 hours, obtain nano level superfine particle mill base.
Two, the preparation of environment-friendly formaldehyde-free digital ink-jet direct printing weaving coating ink:
Get 30 parts of the nano level superfine particle mill bases that ground by weight, connect 8 parts of material polyacrylic polymers, 8 parts of linking agent self-crosslinking acrylic resins, 4 parts of quadrol softening agents, 10 parts of N~crassitude ketone solvent, 1 part of non-ionic type defoamer, 0.2 part of isothiazolinone biocide agent, 0.2 part of trolamine pH regulator agent, in 30 parts of adding reaction vessels of deionized water, under the high-speed stirring condition, mixed 50 minutes, filter processing then, first pass filters with the filter membrane of aperture 1.0um, and second time the filter membrane with aperture 0.5um filters, the 3rd time the filter membrane with aperture 0.3um filters, and is not contained the environment-friendly digital ink-jet direct printing weaving coating ink finished product of formaldehyde at last.
Test shows that environment-friendly digital ink-jet direct printing textile ink of the present invention has following feature:
1. surface tension is 20-50 dyn/cm
2. viscosity is 2-5 mPa*sec
3. pH value is 7-9 Ph
4. specific conductivity is 2000-8000 Ms/cm
5. photostabilization is the 7-8 level
6. water-wash resistance is the 4-5 level
7. weathering resistance is 6 grades
Digital ink-jet direct printing weaving coating ink of the present invention, by digital ink-jet printed flat-panel printer, can directly carry out number on multiple yarn fabric (cotton, silk, terylene, wool etc.) prints, bright in luster, soft, have digital print meticulous advantage and transition color abundant effects, photostabilization reaches the 7-8 level, washing fastness reaches the 4-5 level, need not make a plate, need not pre-treatment and aftertreatment, printout only needs to solve the pollution problem that traditional screen printing brings in the oven dry of 150-180 degree.