CN103790039A - Method for improving ink printing chroma - Google Patents
Method for improving ink printing chroma Download PDFInfo
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- CN103790039A CN103790039A CN201210433222.3A CN201210433222A CN103790039A CN 103790039 A CN103790039 A CN 103790039A CN 201210433222 A CN201210433222 A CN 201210433222A CN 103790039 A CN103790039 A CN 103790039A
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- ink
- printing
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- silk
- chroma
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Abstract
The invention discloses a printing method for improving the ink printing chroma of a pure cotton fabric. The method comprises: (1) using a pretreatment solution to perform pretreatment on cloth and silk; (2) conducting printing on the pure cotton fabric by ink; and (3) implementing heat treatment on the pure cotton fabric. By adopting the printing method provided by the invention, the cloth and silk printing chroma can reach about 60, which is increased by 50% compared with the prior art. At the same time, with the printing method provided by the invention, the bonding force of ink to the cloth and silk is increased, and the nozzle can be more stable when ink is sprayed.
Description
Technical field
The present invention relates to a kind of printing process, be specifically related to a kind of ink printing method, particularly a kind of ink is printed and dyed before cloth and silk to improve the method for ink printing chroma.
Background technology
At present, ink-jet cloth printing application is more and more wider, and its Application Areas comprises paper printing, plant printing, special material printing etc.Ink by chromoplast (as pigment, dyestuff etc.), link stuff, fill out the homogeneous mixture that the materials such as (filling) material, additional material form, can print, and be dried being printed on body, be the pulpous state adherent that has color, there is certain fluidity.Therefore, color (form and aspect), body bone (rheological property such as rare thick, fluidity) and drying property are three most important performances of ink.The kind of ink is a lot, and physical property is also different, and what have is very thick, very sticky, and have quite rare.What have makes link stuff with vegetable oil, somely makes link stuff with resin and solvent or water etc.These are all that the type and the drying means etc. that are stock, printing process, printing plate according to the object of printing decide.
The printing and dyeing in the past such as ink-jet cloth printing and screen printing are different, do not need the making keeping washing of version to wait and an edition relevant item, have advantages of the image that can form as required level excellence.Adopt ink-jetting style method that cloth and silk is printed and dyed be applicable to a small amount of many variety production compared with the dyeing method in the past such as screen printing, the load of liquid waste processing is alleviated, can shorten the aspects such as delivery date and there is dominance.
Ink-jet cloth printing is in fabric printing field, and for example cloth and silk field of printing and dyeing, applies more and more wider.But there is certain defect in the ink-jet cloth printing of cloth and silk: in the situation that employing ink-jetting style is printed and dyed, due to the problem of ejection property, ink viscosity is the low following left and right of 10mPas that reaches conventionally, or cloth and silk absorbs rapidly the insufficiency of function of ink set, therefore for prevent print after spreading and sinking in of dyeing material ooze, generally in advance to cloth and silk implement pre-treatment.
JP examined patent publication 63-31594 patent gazette discloses a kind of method of cloth and silk being implemented to pre-treatment, it is by making the non-chromatic water soluble polymer of being essentially of specified quantitative, water soluble salt or water-insoluble inorganic particles be attached to cloth and silk as pretreating reagent, thereby has obtained the ink jet dyeing cloth and silk of clear, distinct printing and dyeing image.
In addition, except adopting in advance, cloth and silk is implemented pre-treatment, also the specific ink jet printing method of employing adapting, the for example ink jet printing method to cellulose fibre structure printing and dyeing high temperature modification reactive dye ink, the flat 4-35351A of for example JP is by adopting in advance alkaline matter, urea and having nonionic or the water-soluble high-molecular substance of anionic property carries out pre-treatment to cellulose fibre structure, thus can be distinct and ooze without spreading and sinking in by color dyeing.
Above-mentioned all methods, its object is and prevents that spreading and sinking in of image from blending and under high concentration, obtain distinct product dyed thereby, but still end reaches and realizes colour saturation, the distinct sense that the product dyed thereby that obtains with the screen printing method adopting is in the past equal to.
Summary of the invention
The object of the invention is to address the deficiencies of the prior art, provide a kind of ink that is applicable to print and dye in the method for the raising ink printing chroma of cloth and silk.
For reaching this object, the present invention by the following technical solutions:
Improve a printing process for pure cotton fabric ink printing chroma, described method comprises:
(1) use pretreatment fluid to implement preliminary treatment to cloth and silk;
(2) with ink, pure cotton fabric is printed;
(3) pure cotton fabric is implemented to heat treatment.
Pretreatment fluid of the present invention, it contains water, alkaline-earth metal ions compound, cross-linked polyurethane.
Alkaline-earth metal ions of the present invention, is selected from the mixture of a kind of in beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr) or barium (Ba) or at least two kinds.Preferably ion or its mixture of at least two kinds of Mg, Ca, Ba.The most preferably mixture of Ca and Ba ion.
Alkaline-earth metal ions of the present invention acts on the carboxyl of the high molecular particle containing in surface, dispersed polymeres or the ink of the pigment in the ink using together with pretreatment fluid, there is the effect that makes ink cohesion, have thus the ink of inhibition and soak in cloth and silk, ink residue improves the effect of color emissivity on cloth and silk surface.
The present patent application people finds, when adopting Ca
2+and Ba
2+mixture time, the two produces amplification larger cooperative effect.Compared to independent employing Ca
2+and Ba
2+time, its chroma is 40 left and right, and adopts Ca
2+and Ba
2+mixture time, its chroma but reaches 60 left and right, its amplification reaches 50%, effect is surprising.
Described Ca
2+and Ba
2+mixture in, Ca
2+with Ba
2+mol ratio (20:80) ~ (80:20), preferably (30:70) ~ (70:30), more preferably (40:60 ~ 60:40), for example 1:1.
Described Ca
2+and Ba
2+anion, preferably halide ion, for example F, Cl, Br, I, but in the present invention, most preferably F
-and Cl
-, more preferably Cl
-., the preferred alkaline-earth metal ions compound of the present invention is CaCl
2and BaCl
2mixture according to the above ratio.
Cross-linked polyurethane of the present invention, it is prior art.The typical but non-limiting requirement of cross-linked polyurethane of the present invention comprises: the glass transition temperature of described cross-linked polyurethane particulate is for below-10 ℃.If exceed-10 ℃, reduce for the anchorage of cloth and silk.Be preferably below-15 ℃, below more preferably-20 ℃.In addition the particle diameter that, the employing light scattering method of above-mentioned high molecular particle obtains is preferably below the above 5 μ m of 30nm.More preferably below the above l μ of 60nm m.If be less than 30nm, the anchorage of dyeing material reduces, if exceed 5 μ m, it is unstable that stably dispersing becomes.In addition, for the impact of the polyvalent metal ion coexisting with high molecular particle that suppresses may contain due to pretreatment liquid of the present invention makes the bad stability of pretreatment liquid, or owing to easily becoming unstable from the ejection of ink gun in the situation in adopting ink-jet method printing pretreatment liquid, therefore preferably below l μ m.
In addition, above-mentioned high molecular particle is cross-linked polyurethane.For the degree of cross linking of high molecular particle, preferably in the time of 25 ℃, tetrahydrofuran insoluble (residual quantity) is more than 40%.Be more than 40% by making tetrahydrofuran insoluble, the anchorage on cloth and silk is improved.More preferably, be more than 60%.Wherein said tetrahydrofuran insoluble, is to make above-mentioned high molecular particle dry, has flooded the percentage of quality 24 hours, tetrahydrofuran insoluble with respect to initial stage quality in oxolane at 25 ℃.
In the present invention, the content range of described alkali salt is 8 ~ 25wt%, preferably 10 ~ 20wt%, further preferred 12 ~ 18wt%.Comprise 8.5wt%, 9wt%, 11wt%, 12.5wt%, 13wt%, 13.5wt%, 14wt%, 14.5wt%, 15wt%, 16wt%, 17wt%, 18.5wt%, 19wt%, 20.5wt%, 21wt%, 22wt%, 23wt%, 34wt%, 24.5wt%.
The content range of described cross-linked polyurethane is 0.1 ~ 5wt%, preferably 0.2 ~ 3wt%, more preferably 0.5 ~ 1.5wt%.Comprise 0.2wt%, 0.35wt%, 0.4wt%, 0.45wt%, 0.55wt%, 0.6wt%, 0.7wt%, 0.8wt%, 0.9wt%, 0.95wt%, 1wt%, 1.1wt%, 1.2wt%, 1.3wt%, 1.4wt%, 1.6wt%, 1.7wt%, 1.8wt%, 1.9wt%, 2.1wt%.
Water of the present invention, preferably impurity content is few, or free from foreign meter, its preferred deionized water.The content of described water is surplus.
Ink of the present invention, it is ink-jet cloth printing ink composite, is preferably self-dispersion type as the pigment of colorant or has been disperseed by acrylic resin.Especially, in the situation of black ink, by using the carbon black of surface oxidation to make the pigment of self-dispersion type, color emissivity improves.In the situation of colored ink, by with acrylic resin, organic pigment being disperseed, color emissivity and improved stability.Wherein, so-called acrylic resin, is to have the monomer of (methyl) acryloyl group as the resin of main body take acrylate, methacrylate etc., can use other the vinyl monomer such as styrene.
In described ink, high molecular particle should be contained, acrylic resin particulate can be used.Alkyl (methyl) acrylate containing as constituent as acrylic resin particulate and/or cyclic alkyl (methyl) acrylate, cyclic alkyl (methyl) acrylate that alkyl (methyl) acrylate that preferably carbon number is 1-24 and/or carbon number are 3-24.As the example, can enumerate (methyl) methyl acrylate, (methyl) ethyl acrylate, (methyl) propyl acrylate, (methyl) n-butyl acrylate, (methyl) isobutyl acrylate, (methyl) acrylic acid pentyl ester, (methyl) Hexyl 2-propenoate, (methyl) 2-EHA, (methyl) 2-ethyl hexyl acrylate etc.In addition, overall with respect to the high molecular particle containing in ink, preferably contain more than 70% abovementioned alkyl (methyl) acrylate and/or cyclic alkyl (methyl) acrylate.Friction fastness and the dry cleaning of the dry friction of dyeing material and wet friction further improve.
Described heat treatment is preferably for above-mentioned dyeing material, at least more than 110 ℃ 200 ℃ carry out below more than 1 minute heat treatment.
If 110 ℃ of the little fourths of the heating-up temperature in heat treatment step, the anchorage of dyeing material is difficult to improve.In addition,, if exceed 200 ℃, cloth and silk, pigment, polymer etc. self are deteriorated.Heating-up temperature is preferably 120 ℃ above below 170 ℃.In addition need more than 1 minute heat time heating time.Be preferably more than 2 minutes.
Adopt printing process of the present invention, can make the chroma of cloth and silk printing reach 60 left and right, it reaches 50% compared to prior art amplification.Meanwhile, adopt printing process of the present invention, the pull-out capacity of ink on cloth and silk increased, and more stable while making shower nozzle ejection ink.
The specific embodiment
For ease of understanding the present invention, it is as follows that the present invention enumerates embodiment.Those skilled in the art should understand, described embodiment only, for helping to understand the present invention, should not be considered as concrete restriction of the present invention.
Embodiment 1
Press following recipe configuration pretreatment fluid:
CaCl
2content is 6wt%,
BaCl
2content is 6wt%,
Cross-linked polyurethane content is 2.5wt%, and water is surplus.
After the pretreatment fluid configuring is sprayed on cloth and silk, then spray ink, described ink disperses with (methyl) ethyl acrylate, heat treatment 2 minutes at 150 ℃ subsequently.
After testing, the chroma of described cloth and silk reaches 62.
Embodiment 2
Press following recipe configuration pretreatment fluid:
CaCl
2content is 2wt%,
BaCl
2content is 6wt%,
Cross-linked polyurethane content is 0.5wt%, and water is surplus.
After the pretreatment fluid configuring is sprayed on cloth and silk, then spray ink, described ink disperses with (methyl) n-butyl acrylate, heat treatment 1.5 minutes at 100 ℃ subsequently.
After testing, the chroma of described cloth and silk reaches 60.
Embodiment 3
Press following recipe configuration pretreatment fluid:
CaCl
2content is 12wt%,
BaCl
2content is 6wt%,
Cross-linked polyurethane content is 1wt%, and water is surplus.
After the pretreatment fluid configuring is sprayed on cloth and silk, then spray ink, described ink disperses with (methyl) 2-ethyl hexyl acrylate, heat treatment 1 minute at 200 ℃ subsequently.
After testing, the chroma of described cloth and silk reaches 65.
Comparative example 1
Press following recipe configuration pretreatment fluid:
CaCl
2content is 12wt%,
Cross-linked polyurethane content is 2.5wt%, and water is surplus.
After the pretreatment fluid configuring is sprayed on cloth and silk, then spray ink, heat treatment 2 minutes at 150 ℃ subsequently.
After testing, the chroma of described cloth and silk reaches 41.
Comparative example 2
Press following recipe configuration pretreatment fluid:
BaCl
2content is 12wt%,
Cross-linked polyurethane content is 2.5wt%, and water is surplus.
After the pretreatment fluid configuring is sprayed on cloth and silk, then spray ink, heat treatment 2 minutes at 150 ℃ subsequently.
After testing, the chroma of described cloth and silk reaches 40.
Contrast by embodiment 1-3 and comparative example 1 and comparative example 2 is visible, and printing process of the present invention can significantly improve the chroma of ink printing product, and it has produced unforeseeable technique effect compared to prior art.
Applicant's statement, the present invention illustrates detailed process composition and engineering flow process of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned detailed process composition and engineering flow process, do not mean that the present invention must rely on above-mentioned detailed process composition and engineering flow process and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, and the selections of the equivalence replacement to the each raw material of product of the present invention and the interpolation of auxiliary element, concrete mode etc., within all dropping on protection scope of the present invention and open scope.
Claims (7)
1. improve a printing process for pure cotton fabric ink printing chroma, described method comprises:
(1) use pretreatment fluid to implement preliminary treatment to cloth and silk;
(2) with ink, pure cotton fabric is printed;
(3) pure cotton fabric is implemented to heat treatment.
2. the method for claim 1, it is characterized in that, front described pretreatment fluid contains water, alkaline-earth metal ions compound and cross-linked polyurethane, and described alkaline-earth metal ions compound is that the alkaline-earth metal ions compound described in Ca and the halid mixture of Ba is Ca
2+and Ba
2+halid mixture, preferably CaCl
2and BaCl
2mixture.
3. method as claimed in claim 2, is characterized in that, in described mixture, and Ca
2+with Ba
2+mol ratio be (20:80) ~ (80:20), preferably (30:70) ~ (70:30), more preferably (40:60 ~ 60:40).
4. method as claimed in claim 2 or claim 3, is characterized in that, the glass transition temperature of described cross-linked polyurethane particulate is below-10 ℃, and the particle diameter that adopts light scattering method to obtain is below the above 5 μ m of 30nm.
5. the method as described in claim 2-4 any one, is characterized in that, the content range of described alkaline-earth metal ions compound is 8 ~ 25wt%, preferably 10 ~ 20wt%, further preferred 12 ~ 18wt%;
The content range of described cross-linked polyurethane is 0.1 ~ 5wt%, preferably 0.2 ~ 3wt%, more preferably 0.5 ~ 1.5wt%;
Described water is deionized water, and its content is surplus.
6. the method for claim 1, is characterized in that, described ink is by disperseing organic pigment with acrylic resin.
7. the method for claim 1, is characterized in that, described heat treatment be at least more than 110 ℃ 200 ℃ carry out below more than 1 minute heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210433222.3A CN103790039A (en) | 2012-11-02 | 2012-11-02 | Method for improving ink printing chroma |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210433222.3A CN103790039A (en) | 2012-11-02 | 2012-11-02 | Method for improving ink printing chroma |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103790039A true CN103790039A (en) | 2014-05-14 |
Family
ID=50666065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210433222.3A Pending CN103790039A (en) | 2012-11-02 | 2012-11-02 | Method for improving ink printing chroma |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103790039A (en) |
-
2012
- 2012-11-02 CN CN201210433222.3A patent/CN103790039A/en active Pending
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Application publication date: 20140514 |