CN109868050A - A kind of aqueous dumb paint of resistance to scratch and preparation method thereof - Google Patents
A kind of aqueous dumb paint of resistance to scratch and preparation method thereof Download PDFInfo
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- CN109868050A CN109868050A CN201910119765.XA CN201910119765A CN109868050A CN 109868050 A CN109868050 A CN 109868050A CN 201910119765 A CN201910119765 A CN 201910119765A CN 109868050 A CN109868050 A CN 109868050A
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- aqueous
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- scratch
- aqueous polyurethane
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- 239000003973 paint Substances 0.000 title claims abstract description 110
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 229920003009 polyurethane dispersion Polymers 0.000 claims abstract description 72
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 55
- 239000000839 emulsion Substances 0.000 claims abstract description 31
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 29
- 239000010703 silicon Substances 0.000 claims abstract description 29
- 238000004132 cross linking Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000004814 polyurethane Substances 0.000 claims abstract description 24
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 23
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 23
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 22
- 229920002635 polyurethane Polymers 0.000 claims abstract description 22
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 18
- 239000008367 deionised water Substances 0.000 claims abstract description 13
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 13
- 230000003449 preventive effect Effects 0.000 claims abstract description 11
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 7
- 229920000570 polyether Polymers 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 39
- 239000007787 solid Substances 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 17
- 239000002243 precursor Substances 0.000 claims description 11
- 230000036961 partial effect Effects 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000003755 preservative agent Substances 0.000 claims description 5
- 230000002335 preservative effect Effects 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 125000000129 anionic group Chemical group 0.000 claims description 4
- 230000009477 glass transition Effects 0.000 claims description 4
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 3
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 3
- 238000002242 deionisation method Methods 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 31
- 238000004806 packaging method and process Methods 0.000 abstract description 13
- 238000007639 printing Methods 0.000 description 33
- 239000002994 raw material Substances 0.000 description 26
- 239000000047 product Substances 0.000 description 19
- 239000006185 dispersion Substances 0.000 description 11
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 8
- 239000003921 oil Substances 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000009738 saturating Methods 0.000 description 6
- 239000012752 auxiliary agent Substances 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003678 scratch resistant effect Effects 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- CUDYYMUUJHLCGZ-UHFFFAOYSA-N 2-(2-methoxypropoxy)propan-1-ol Chemical compound COC(C)COC(C)CO CUDYYMUUJHLCGZ-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 150000002009 diols Chemical class 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 210000004905 finger nail Anatomy 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000006210 lotion Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- LXOFYPKXCSULTL-UHFFFAOYSA-N 2,4,7,9-tetramethyldec-5-yne-4,7-diol Chemical compound CC(C)CC(C)(O)C#CC(C)(O)CC(C)C LXOFYPKXCSULTL-UHFFFAOYSA-N 0.000 description 1
- NECRQCBKTGZNMH-UHFFFAOYSA-N 3,5-dimethylhex-1-yn-3-ol Chemical compound CC(C)CC(C)(O)C#C NECRQCBKTGZNMH-UHFFFAOYSA-N 0.000 description 1
- PORQOHRXAJJKGK-UHFFFAOYSA-N 4,5-dichloro-2-n-octyl-3(2H)-isothiazolone Chemical compound CCCCCCCCN1SC(Cl)=C(Cl)C1=O PORQOHRXAJJKGK-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- -1 Tu Yile FS-204 Chemical compound 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000001046 anti-mould Effects 0.000 description 1
- 239000002546 antimould Substances 0.000 description 1
- DMSMPAJRVJJAGA-UHFFFAOYSA-N benzo[d]isothiazol-3-one Chemical compound C1=CC=C2C(=O)NSC2=C1 DMSMPAJRVJJAGA-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
The present invention provides a kind of aqueous dumb paint of resistance to scratch and preparation method thereof, which includes following components according to mass parts: the first 50-75 parts of aqueous polyurethane dispersion, 10-20 parts of the second aqueous polyurethane dispersion, 0-10 parts of self-crosslinking acrylic resin, silicon emulsion 5-7 parts aqueous, 0-3 parts of coalescing agent, 0.5-2 parts of levelling agent, 0-3 parts of crosslinking agent, 3-5 parts of damage resistant wax, 0.5-2 parts of slipping agent, 2-5 parts of deionized water, 0.1-0.5 parts of defoaming agent, 0.1-0.2 parts of Antisepticize and mildew preventive；Wherein, first aqueous polyurethane dispersion is polyester-type aqueous polyurethane, and second aqueous polyurethane dispersion is polyether type aqueous polyurethane.The resistance to aqueous dumb paint of scratch also has both excellent scratch resistance while with matte effect, and color effect, water resistance and anti-stick work well thoroughly, can effectively promote product packaging class.
Description
Technical field
The present invention relates to a kind of dumb paints more particularly to a kind of aqueous dumb paint of resistance to scratch and preparation method thereof, belong to oil
Black field.
Background technique
In recent years, with the improvement of living standards, the packaging type of product, specification are more and more in the market, in order to embody
Value of the product and the desire to purchase for exciting consumer, dumb light series package occupy one seat in packaging field always.Due to
Matte effect is often also that high-end product packaging is preferred with a kind of soft, quiet feeling.
Currently, the main stream approach of dumb light package means is using overlay film Matte film and the printing of dumb paint glazing, such as middle height
Hold box of mobile telephone, clothes drop, gift package etc..Wherein, aqueous dumb paint is green, environmentally friendly, nontoxic due to having the characteristics that,
Therefore become the main way of current packaging field, application is extremely wide.
However, current aqueous dumb paint, most of color thoroughly is poor, and the printing product surface after printing whitens, and water-fast effect is not
It is good, and intolerant to scratch, often finger nail or other hard objects streak, and apparent bright trace occur, seriously affect vision effect
Fruit, therefore it is necessary to develop a kind of aqueous dumb paint of resistance to scratch, substitution overlay film class product and make up existing mute shortage of oil it
Place.
Summary of the invention
The present invention provides a kind of aqueous dumb paint of resistance to scratch and preparation method thereof, and the resistance to aqueous dumb paint of scratch is with mute
While light effect, excellent scratch resistance is also had both, and color effect, water resistance and anti-stick work well thoroughly, Neng Gouyou
Effect promotes product packaging class.
The present invention provides a kind of aqueous dumb paint of resistance to scratch, includes following components according to mass parts: the first aqueous polyurethane
50-75 parts of dispersion, 10-20 parts of the second aqueous polyurethane dispersion, 0-10 parts of self-crosslinking acrylic resin, aqueous silicon emulsion 5-
7 parts, 0-3 parts of coalescing agent, 0.5-2 parts of levelling agent, 0-3 parts of crosslinking agent, 3-5 parts of damage resistant wax, 0.5-2 parts of slipping agent, go from
Sub- water 2-5 parts, 0.1-0.5 parts of defoaming agent, 0.1-0.2 parts of Antisepticize and mildew preventive；
Wherein, first aqueous polyurethane dispersion is polyester-type aqueous polyurethane, second aqueous polyurethane point
Granular media is polyether type aqueous polyurethane.
The resistance to aqueous dumb paint of scratch as described above, wherein first aqueous polyurethane dispersion and second water
Property dispersions of polyurethanes be anionic resin.
The resistance to aqueous dumb paint of scratch as described above, wherein the partial size of first aqueous polyurethane dispersion is 3-5 μ
M, solid content 30-34%, pH 7-8, glossiness 4-5GU.
The resistance to aqueous dumb paint of scratch as described above, wherein the elongation at break of first aqueous polyurethane dispersion
For 600-700%, tensile strength 15-26MPa.
The resistance to aqueous dumb paint of scratch as described above, wherein the partial size of second aqueous polyurethane dispersion is 4-8 μ
M, solid content 30-34%, pH 7-8, glossiness 1-2GU.
The resistance to aqueous dumb paint of scratch as described above, wherein the elongation at break of second aqueous polyurethane dispersion
For 200-300%.
The resistance to aqueous dumb paint of scratch as described above, wherein the solid content of the self-crosslinking acrylic resin is 42-
46%, pH 7-9, glass transition temperature are -18-0 DEG C, and minimum film formation temperature is 0-7 DEG C.
The resistance to aqueous dumb paint of scratch as described above, wherein the aqueous silicon emulsion is molecular weight not less than 100000
Aqueous emulsion of dimethyl polysiloxane fluid, solid content 38-42%, pH 7-9.
The present invention also provides a kind of preparation methods of any of the above-described aqueous dumb paint of resistance to scratch, including following step
It is rapid:
1) the first aqueous polyurethane dispersion and the second aqueous polyurethane dispersion are mixed, mixture is obtained；
2) self-crosslinking acrylic resin is added in Xiang Suoshu mixture, and after carrying out the first stirring, aqueous silicon emulsion is added, carries out
Second stirring, is then added coalescing agent and deionized water, obtains precursor；
3) levelling agent, crosslinking agent, damage resistant wax, slipping agent, defoaming agent and preservative is added in Xiang Suoshu precursor, carries out the
Three stirrings, filtering obtain the aqueous dumb paint of resistance to scratch.
The preparation method of the resistance to aqueous dumb paint of scratch as described above, wherein the revolving speed of first stirring is 400-
The revolving speed of 500r/min, second stirring are 400-500r/min, and the revolving speed of the third stirring is 600-800r/min；
The time of first stirring is 8-12min, and the time of second stirring is 8-12min, the third stirring
Time be 15-20min.
Implementation of the invention, at least has the advantage that
1, the aqueous dumb paint of resistance to scratch of the invention has excellent matte effect, due to not containing flatting silica wherein, because
This saturating color is good, not will cause the phenomenon that surface of package whitens, and significantly improves the presentation effect of matte effect；
2, the aqueous dumb paint of resistance to scratch of the invention has excellent scratch-resistant performance, after being scraped or being streaked, surface
It is not in trace；If the dynamics of scratch is excessive, although surface will appear shadow scratch, but as the running-surface of time can be gradually
The packaging restored to initial conditions, therefore carried out using the aqueous dumb paint of the resistance to scratch of the present invention still can be in transport, storage phase
It keeps good and effect is presented, to significantly extend the integrity of product packaging；
3, the weatherability of the aqueous dumb paint of resistance to scratch of the invention is good, can keep excellent matte degree and color for a long time
Yellowing will not occur for chroma；
4, the water resistance, wearability of the aqueous dumb paint of resistance to scratch of the invention and resist it is adhesive good, therefore can be
The presentation effect that various environment maintain itself excellent under the conditions of, application field can be expanded further.
5, the aqueous dumb paint of resistance to scratch of the invention can adapt to join in flexo, offset printing to use condition without rigors
The techniques such as machine, gravure and roller coating.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the embodiment of the present invention, to this
Technical solution in inventive embodiments is clearly and completely described, it is clear that described embodiment is that a part of the invention is real
Example is applied, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creation
Property labour under the premise of every other embodiment obtained, shall fall within the protection scope of the present invention.
The present invention provides a kind of aqueous dumb paint of resistance to scratch, includes following components according to mass parts: the first aqueous polyurethane
50-75 parts of dispersion, 10-20 parts of the second aqueous polyurethane dispersion, 0-10 parts of self-crosslinking acrylic resin, aqueous silicon emulsion 5-
7 parts, 0-3 parts of coalescing agent, 0.5-2 parts of levelling agent, 0-3 parts of crosslinking agent, 3-5 parts of damage resistant wax, 0.5-2 parts of slipping agent, go from
Sub- water 2-5 parts, 0.1-0.5 parts of defoaming agent, 0.1-0.2 parts of Antisepticize and mildew preventive；
Wherein, first aqueous polyurethane dispersion is polyester-type aqueous polyurethane, second aqueous polyurethane point
Granular media is polyether type aqueous polyurethane.
By above-mentioned raw materials type it is found that the aqueous dumb paint of resistance to scratch of the invention obviates flatting silica (or flatting oil) answers
With enabling dumb paint of the invention still to have under conditions of without containing delustring powder raw material by the improvement to raw material excellent
Different matte effect.Simultaneously, additionally it is possible to can have good color performance after guaranteeing dumb paint printing of the invention, overcome
Existing dumb light packs the defect that the excessively poor caused printing product surface of color performance whitens, therefore is printed using dumb paint of the present invention
Printing afterwards can show splendid printing effect, be obviously improved the class of packaging.
Specifically, the first aqueous polyurethane dispersion is polyester-type aqueous polyurethane, and the second aqueous polyurethane dispersion is
First aqueous polyurethane dispersion and the second aqueous polyurethane dispersion are carried out match group by polyether type aqueous polyurethane, inventor
It is found after conjunction, tool can reach certain low-luster and soft feel effect after the two mixing, therefore by aqueous to first
The ratio of dispersions of polyurethanes and the second aqueous polyurethane dispersion is adjusted, so that the mixed glossiness of the two
Reach best dumb light state and there is splendid feel.
Meanwhile the combination of polyester-type aqueous polyurethane and polyether type aqueous polyurethane enables to dumb paint of the invention to have
There is certain elasticity, so as to improve the scratch resistance performance and wear-resisting property of dumb paint, so that printing product surface is less prone to scratch and tool
There are extremely strong reconstitution properties.And the combination of the selected polyester-type aqueous polyurethane of this programme and polyether type aqueous polyurethane is also
It enables to dumb paint of the invention that there is anti-yellowing property, further improves the quality of printing.
Self-crosslinking acrylic resin is used to improve the adhesion property of dumb paint of the present invention, i.e., when needing dumb paint of the present invention
When being printed in plain paper, the dosage of self-crosslinking acrylic resin can be reduced or even be added without self-crosslinking acrylic resin；When
When needing to be printed in dumb paint of the present invention on difficult attachment, it can suitably increase self-crosslinking acrylic in above-mentioned amount ranges
The dosage of resin, to reduce printing difficulty of the dumb paint of the present invention on difficult attachment.
Similar, crosslinking agent can also improve the adhesion property of dumb paint of the present invention, and make dumb paint of the present invention
Water resistance and other performances advanced optimize.When printing element easily adheres to, to print difficulty low, the dosage of crosslinking agent can be reduced
Crosslinking agent is not added even；When the attachment of printing element difficulty, printing difficulty are high, crosslinking agent can be increased within the scope of above-mentioned restriction
Dosage.In order to control cost, when printing element attachment difficulty is high, the dosage of self-crosslinking acrylic resin can be first realized most
Then bigization is choosing whether further to add crosslinking agent.
The mixing of aqueous silicon emulsion and the first aqueous polyurethane dispersion, the second aqueous polyurethane dispersion, can be from two
Aspect improves anti deformational force of the dumb paint of the present invention when coping with external force.On the one hand, aqueous silicon emulsion can be aqueous poly- first
On the basis of urethane dispersion, the second aqueous polyurethane dispersion, it is further provided scratch-resistant performance avoids the printing table under external force
There is scratch in face；On the other hand, aqueous silicon emulsion can be improved the smooth degree of system, to reduce the appearance of external force printing product surface
The probability of scratch, so as to keep printing product surface good appearance.
In addition, damage resistant wax and slipping agent can further increase the resistance to scratch performance of dumb paint of the present invention.Wherein, scratch-resistant
Hurt wax and anti-friction, scratch resistance performance is provided；Slipping agent mainly provides slippery, reduces dynamic friction coefficient and confficient of static friction, improves dry
Scoring resistance energy after dry film forming.
It forms a film on printing element in addition, coalescing agent is used to help dumb paint, improves the levelability of dumb paint and attached
Put forth effort, the dosage of coalescing agent can be determined according to the attachment difficulty of printing element；Levelling agent is for improving dumb light of the present invention
The wetting levelability of oil improves surface defect and has certain defoaming effect, to improve the printing of dumb paint of the present invention
Yields；Defoaming agent can further improve the smoothness on dumb paint printing of the present invention surface, inhibit the generation of bubble；Anti-corrosion is anti-
Mould dose can prevent dumb paint of the present invention from corruption or Signs of Mould occur within storage phase, transport phase and application phase, into one
Step promotes the quality of dumb paint of the present invention.
The present invention has been obtained one kind and had excellent performance by the combination of above-mentioned raw materials in the case where being not necessarily to add flatting silica
Dumb paint.The dumb paint not only has suitable glossiness in appearance so that matte effect is excellent, but also color thoroughly
The phenomenon that printing is whitened well can not will cause；And the dumb paint practicability is high, in transport phase, storage phase and uses
There are extremely strong scratch resistance energy and reconstitution properties in journey, the good degree of appearance can be maintained for a long time.In addition, the dumb paint also have both it is resistance to
Xanthochromia performance, water resistance, wear-resisting property and it is anti-be adhered performance, in the product packaging that can be applied to various fields.
It is possible to further pass through the first aqueous polyurethane dispersion and the second aqueous poly- ammonia of selecting anionic resin
Ester dispersion optimizes the performance of dumb paint of the present invention.
When the first aqueous polyurethane dispersion and the second aqueous polyurethane dispersion are all anionic resin, Neng Gouzeng
Add the compatibility performance of the first aqueous polyurethane dispersion and the second aqueous polyurethane dispersion and other raw materials, to utilize
To uniform system, each raw material can not only be made to can be realized the maximization of its function, additionally aid the function between each raw material
Match, to optimize equilibrium to the performance of dumb paint of the present invention.
On the basis of the above embodiment, the partial size of first aqueous polyurethane dispersion is 3-5 μm, and solid content is
30-34%, pH 7-8, glossiness 4-5GU.
It can be advanced optimized by the research of inventor when the partial size of the first aqueous polyurethane dispersion is 3-5 μm
Saturating color, feel and the gloss of dumb paint of the present invention, to improve the press quality of printing, and the particle diameter distribution facilitates
The glossiness and levelling effect of weighing apparatus dumb paint, so that printing has the matte effect of high-quality.
In addition, solid content can guarantee the effective content of the first aqueous polyurethane dispersion, to guarantee that first is aqueous poly-
Urethane dispersion effect in dumb paint is maximumlly realized；The pH value of above range can further enhance the first aqueous poly- ammonia
Degree of dissolving each other between ester dispersion and other raw materials, to be conducive to the implementation of its effect.
Optionally, can also the pi of strength further to the first aqueous polyurethane dispersion be defined, thus
Be conducive to adjust the elasticity and flexibility after dumb paint film forming of the present invention.When the extension at break of the first aqueous polyurethane dispersion
Rate is 600-700%, the elasticity, recovery capability when tensile strength is 15-26MPa, after capable of enhancing dumb paint film forming of the present invention
And fracture resistance effectively maintains the good degree of printing product surface to enhance the scratch resistance energy of printing product surface.
Further, the partial size of the second aqueous polyurethane dispersion is 4-8 μm, solid content 30-34%, pH 7-8, light
Damp degree is 1-2GU.
It can be advanced optimized by the research of inventor when the partial size of the second aqueous polyurethane dispersion is 4-8 μm
Saturating color, gloss and the feel of dumb paint of the present invention, to improve the press quality of printing, and the particle diameter distribution facilitates
The glossiness and levelling effect of weighing apparatus dumb paint, so that printing has the matte effect of high-quality.
In addition, solid content can guarantee the effective content of the second aqueous polyurethane dispersion, to guarantee that second is aqueous poly-
Urethane dispersion effect in dumb paint is maximumlly realized；The pH value of above range can further enhance the second aqueous poly- ammonia
Degree of dissolving each other between ester dispersion and other raw materials, to be conducive to the implementation of its effect.
Optionally, can also the pi of strength further to the second aqueous polyurethane dispersion be defined, thus
Be conducive to adjust the elasticity and flexibility after dumb paint film forming of the present invention.When the extension at break of the second aqueous polyurethane dispersion
When rate is 200-300%, elasticity, recovery capability and fracture resistance after dumb paint film forming of the present invention can be enhanced, to enhance
The scratch resistance energy of printing product surface effectively maintains printing product surface good degree.
In addition, the first aqueous polyurethane dispersion and the second aqueous polyurethane dispersion with above-mentioned performance parameter can
Mutual efficient coupling matching, to further promote the printing effect of dumb paint of the present invention with the good degree of appearance and two aspect of resistance to scratch
Fruit, the especially matching of the two glossiness and solid content, enable to matte effect more prominent, effectively improve product packaging
Class.
In a specific embodiment, the first aqueous polyurethane dispersion can be, but not limited to Shanghai think fertile chemistry PU-1580,
PU-1581 and this tal fibre PD-809 etc.；Second aqueous polyurethane dispersion can be, but not limited to Royal DSM R1010, this tal fibre
PD804 etc..
Further, the solid content of self-crosslinking acrylic resin is 42-46%, and pH 7-9, glass transition temperature is -18-0
DEG C, minimum film formation temperature is 0-7 DEG C.
The above-mentioned restriction to self-crosslinking acrylic resin solid content ensure that self-crosslinking acrylic resin has and can be realized
The effective content of its adhesion property, it is preferable that solid content 44%；The restriction of pH value can further enhance self-crosslinking acrylic
Degree of dissolving each other between resin and other raw materials, to be conducive to the implementation of its effect, it is preferable that pH value 7.5；Gamma transition
The restriction of temperature and minimum film formation temperature can guarantee the filming performance of dumb paint of the present invention, be easier to it on printing element surface
Film forming, it is preferable that glass transition temperature is -18 DEG C, and minimum film formation temperature is 7 DEG C.
In a specific embodiment, self-crosslinking acrylic resin can be, but not limited to Royal DSM A-1127 etc..
Further, it is aqueous emulsion of dimethyl polysiloxane fluid not less than 100000, solid content that aqueous silicon emulsion, which is molecular weight,
For 38-42%, pH 7-9.
Specifically, other raw materials in the dimethyl silicone polymer aqueous emulsion of high molecular weight and the present invention, such as the first water
Property dispersions of polyurethanes and the second aqueous polyurethane dispersion, there is good compatibility, and surface wettability well to
It can be in equally distributed system；The restriction of solid content, which ensure that aqueous silicon emulsion has, can be realized the effective of its scratch-resistant performance
Content, it is preferable that solid content 40%；The restriction of pH value can further enhance mutual between aqueous silicon emulsion and other raw materials
Molten degree, to be conducive to the implementation of its effect.
In a specific embodiment, aqueous silicon emulsion can be, but not limited to DOW CORNING HV495, HV490 lotion.
Further, coalescing agent is selected from one or more of polyalcohols, ethers auxiliary agent, such as propylene glycol, second
Glycol, dipropylene glycol methyl ether, diethylene glycol ether, diethylene glycol monobutyl ether etc..
Levelling agent is acetylenic diols auxiliary agent, such as Surfynol 104E, Tu Yile FS-204, Surfynol 420, Digao
GA100 etc..
Crosslinking agent is polycarbodiimide, and solid content is 40%, such as this tal fibre XL-732 etc..
It is 120-180 DEG C that damage resistant wax, which need to have high rigidity, fusing point, particle diameter distribution is uniform, pH value 8.5-9, is had well
Anti- after-tackiness, scratch resistance, such as Keimadditec D-272, D-274, E-8046, Mai Kemen Lube880 etc..
Slipping agent is organic silicon auxiliary agent, such as DOW CORNING DC51 or Digao 482,494.
Defoaming agent is selected from one of organic silicon defoamer, mineral oil and acetylenic diols defoaming agent or a variety of, such as road health
Peaceful DC71, DC65, Digao 825,842,104E etc..
Antisepticize and mildew preventive can be 1,2 benzisothiazole-3-ketone classes, dichloro octylisothiazolinone, such as unicorn chemical industry difficult to understand
PROXEL CF, 342 ROCIMA etc..
The present invention also provides a kind of preparation methods of any of the above-described aqueous dumb paint of resistance to scratch, including following step
It is rapid:
1) the first aqueous polyurethane dispersion and the second aqueous polyurethane dispersion are mixed, mixture is obtained；
2) self-crosslinking acrylic resin is added in Xiang Suoshu mixture, and after carrying out the first stirring, aqueous silicon emulsion is added, carries out
Second stirring, is then added coalescing agent and deionized water, obtains precursor；
3) levelling agent, crosslinking agent, damage resistant wax, slipping agent, defoaming agent and preservative is added in Xiang Suoshu precursor, carries out the
Three stirrings, filtering obtain the aqueous dumb paint of resistance to scratch.
, it is understood that the ratio of the raw material of the resistance to aqueous dumb paint of scratch is consistent with the above in above-mentioned preparation method.
In step 1), the first aqueous polyurethane dispersion and the second aqueous polyurethane dispersion can be sequentially added into reaction
It in kettle, and is kept stirring during addition, so as to guarantee that the two is uniformly mixed.Wherein, speed of agitator can be
500r/min。
In step 2), self-crosslinking acrylic resin is added into mixture, the first stirring is then carried out, so that self-crosslinking third
Olefin(e) acid ester and mixture are sufficiently mixed as uniform resin system., it is understood that if in the dumb paint raw material of preparation not
When containing self-crosslinking acrylic resin, it is convenient to omit aqueous silicon emulsion is directly added in the addition process into mixture.
In order to guarantee that aqueous silicon emulsion is uniformly mixed with above-mentioned resin system, during aqueous silicon emulsion is added and
After aqueous silicon emulsion is added, need to carry out system the second stirring.Then, coalescing agent and deionized water is added, obtains
To precursor.It is noted here that coalescing agent is individually added into system and causes demulsifying phenomenon in order to prevent, it preferably will film forming
After auxiliary agent is mixed with deionized water, precursor is obtained in addition system.
In step 3), levelling agent, crosslinking agent, damage resistant wax, slipping agent, defoaming agent and preservative are added into precursor,
Third stirring is carried out, filtering obtains the aqueous dumb paint of resistance to scratch.
Wherein, if do not contain coalescing agent and/or crosslinking agent in the dumb paint raw material of preparation, it is omitted in step 3)
Process is added.When being filtered, 80 mesh filter screens is preferably selected to filter, to guarantee the film forming effect of the resistance to aqueous dumb paint of scratch
Fruit and matte effect.
In above-mentioned preparation method, the revolving speed of the first stirring is 400-500r/min, and the revolving speed of the second stirring is 400-500r/
Min, the revolving speed of third stirring are 600-800r/min.
Preferably, the revolving speed of the first stirring is 400r/min, and the second speed of agitator is 500r/min, and third speed of agitator is
700r/min。
The time of first stirring is 8-12min, and the time of second stirring is 8-12min, the third stirring
Time be 15-20min.
Preferably, first stirring time be 10min, second stirring time be 10min, third stirring time be
15min。
Hereinafter, being situated between in detail by specific embodiment to the aqueous dumb paint of resistance to scratch and preparation method thereof of the invention
It continues.
Embodiment 1
The aqueous dumb paint of resistance to scratch of the present embodiment, the raw material including following mass parts:
First aqueous polyurethane dispersion (thinks fertile chemistry PU1580 in Shanghai): 63 parts
Second aqueous polyurethane dispersion (mixture of DSMR1010): 10 parts
Self-crosslinking acrylic resin (Royal DSM A-1127): 10 parts
Aqueous silicon emulsion (DOW CORNING HV495): 5 parts
Coalescing agent (mixture of propylene glycol and dipropylene glycol methyl ether): 0.5 part
Levelling agent (mixture of 104E and GA100): 1 part
Crosslinking agent (XL-732): 1 part
Damage resistant wax (E-8046): 5 parts
Slipping agent (DC51): 1.5 parts
Deionized water: 2.7 parts
Defoaming agent (mixture of DC65 and Digao 842): 0.2 part
Antisepticize and mildew preventive (mixture of PROXELCF and ROCIMA 342): 0.1 part
The aqueous dumb paint of resistance to scratch of the present embodiment is prepared as follows:
1, the first aqueous polyurethane dispersion and the second aqueous polyurethane dispersion are sequentially added into reaction kettle, Bian Jia
While stirring with 500r/min, mixture is obtained；
2, self-crosslinking acrylic resin is added to mixture, after stirring 10min with 400r/min, aqueous silicon emulsion is added,
10min is stirred with 500r/min, the mixture of coalescing agent and deionized water is then added, stirs evenly, obtains precursor；
3, levelling agent, crosslinking agent, damage resistant wax, slipping agent, defoaming agent and preservative is added to precursor, with 700r/min
After stirring 15min, filters (80 mesh), obtain the aqueous dumb paint 1# of resistance to scratch of this implementation.
Embodiment 2
The aqueous dumb paint of resistance to scratch of the present embodiment, the raw material including following mass parts:
First aqueous polyurethane dispersion: 60 parts
Second aqueous polyurethane dispersion: 15 parts
Self-crosslinking acrylic resin: 7 parts
Aqueous silicon emulsion: 5 parts
Coalescing agent: 1 part
Levelling agent: 1 part
Crosslinking agent: 2 parts
Damage resistant wax: 5 parts
Slipping agent: 0.7 part
Deionized water: 3 parts
Defoaming agent: 0.2 part
Antisepticize and mildew preventive: 0.1 part
Above-mentioned raw materials model and preparation method in the aqueous dumb paint of resistance to scratch of the present embodiment is identical as implementing 1.This
The aqueous dumb paint of resistance to scratch of embodiment is 2#.
Embodiment 3
The aqueous dumb paint of resistance to scratch of the present embodiment, the raw material including following mass parts:
First aqueous polyurethane dispersion: 53.5 parts
Second aqueous polyurethane dispersion: 20 parts
Self-crosslinking acrylic resin: 8 parts
Aqueous silicon emulsion: 5 parts
Coalescing agent: 0.5 part
Levelling agent: 1 part
Crosslinking agent: 3 parts
Damage resistant wax: 5 parts
Slipping agent: 1 part
Deionized water: 2.7 parts
Defoaming agent: 0.2 part
Antisepticize and mildew preventive: 0.1 part
Above-mentioned raw materials model and preparation method in the aqueous dumb paint of resistance to scratch of the present embodiment is identical as implementing 1.This
The aqueous dumb paint of resistance to scratch of embodiment is 3#.
Embodiment 4
The aqueous dumb paint of resistance to scratch of the present embodiment, the raw material including following mass parts:
First aqueous polyurethane dispersion: 67 parts
Second aqueous polyurethane dispersion: 10 parts
Self-crosslinking acrylic resin: 5 parts
Aqueous silicon emulsion: 5 parts
Coalescing agent: 0.5 part
Levelling agent: 1 part
Crosslinking agent: 2 parts
Damage resistant wax: 5 parts
Slipping agent: 1 part
Deionized water: 3.2 parts
Defoaming agent: 0.2 part
Antisepticize and mildew preventive: 0.1 part
Above-mentioned raw materials model and preparation method in the aqueous dumb paint of resistance to scratch of the present embodiment is identical as implementing 1.This
The aqueous dumb paint of resistance to scratch of embodiment is 4#.
Embodiment 5
The aqueous dumb paint of resistance to scratch of the present embodiment, the raw material including following mass parts:
First aqueous polyurethane dispersion: 74 parts
Second aqueous polyurethane dispersion: 10 parts
Aqueous silicon emulsion: 5 parts
Coalescing agent: 0.5 part
Levelling agent: 1 part
Crosslinking agent: 1 part
Damage resistant wax: 5 parts
Slipping agent: 1 part
Deionized water: 2.7 parts
Defoaming agent: 0.2 part
Antisepticize and mildew preventive: 0.1 part
Above-mentioned raw materials model and preparation method in the aqueous dumb paint of resistance to scratch of the present embodiment is identical as implementing 1.This
The aqueous dumb paint of resistance to scratch of embodiment is 5#.
Embodiment 6
The aqueous dumb paint of resistance to scratch of the present embodiment, the raw material including following mass parts:
First aqueous polyurethane dispersion: 57.5 parts
Second aqueous polyurethane dispersion: 20 parts
Self-crosslinking acrylic lotion: 4 parts
Aqueous silicon emulsion: 5 parts
Coalescing agent: 0.5 part
Levelling agent: 1 part
Crosslinking agent: 3 parts
Damage resistant wax: 5 parts
Slipping agent: 1 part
Deionized water: 2.6 parts
Defoaming agent: 0.2 part
Antisepticize and mildew preventive: 0.2 part
Above-mentioned raw materials model and preparation method in the aqueous dumb paint of resistance to scratch of the present embodiment is identical as implementing 1.This
The aqueous dumb paint of resistance to scratch of embodiment is 6#.
Test example
The above-mentioned resistance to aqueous dumb paint 1#-6# of scratch is scraped on the substrate for having bottom ink with No. 2 silk sticks of RK, uses hair dryer
Drying after placing 2 hours after its drying, carries out resistance to scratch, wear-resisting, water-fast, saturating color, gloss etc. and tests, test result is such as
Shown in the following table 1.
Hereinafter, specific test condition is introduced.
Wearability: Jinan blue light MCJ-01A abrasion tester, 4 pounds, 200 times back and forth；
Resistance to scratch: slightly firmly drawing a gloss oil surface with finger nail, observation marks on surface whether without trace or unobvious, if
Without trace or unobvious, illustrate that resistance to scratch is functional, otherwise resistance to scratch performance is poor；
Restorative: by 40 minutes after streaking, whether observation coating surface can restore as before；
Water resistance: with the cotton swab of dipped water, slightly in gloss oil surface wipes, 20 times back and forth, whether observation surface is damaged, nothing
Breakage indicates good；
Color inhibition: sample will be scraped and placed 50 baking oven 48 hours, see whether to turn yellow；
Saturating color: the aqueous dumb paint of preparation is scraped having above color substrate, observation comparison pornographic condition thoroughly；
Glossiness: making glossometer test with 60 °, and (ground crosses water-based gloss oil ground, glossiness 65, with No. 2 silks of RK to be upper
Stick scrapes sample)；
It is anti-to be adhered: 80 square centimeters of contact area, 50 kilograms of pressure, 12 hours.
Table 1
According to table 1: the aqueous dumb paint of resistance to scratch of the invention has excellent resistance to scratch performance, wear-resisting, water-fast, saturating
The features such as color is good, printing product surface non-whitening, can substitute traditional dumb paint, be useful in above high-end packaging product, Neng Gouxian
It writes and promotes product packaging quality.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of aqueous dumb paint of resistance to scratch, which is characterized in that according to mass parts include following components: the first aqueous polyurethane point
50-75 parts of granular media, 10-20 parts of the second aqueous polyurethane dispersion, 0-10 parts of self-crosslinking acrylic resin, aqueous silicon emulsion 5-7
Part, 0-3 parts of coalescing agent, 0.5-2 parts of levelling agent, 0-3 parts of crosslinking agent, 3-5 parts of damage resistant wax, 0.5-2 parts of slipping agent, deionization
2-5 parts of water, 0.1-0.5 parts of defoaming agent, 0.1-0.2 parts of Antisepticize and mildew preventive；
Wherein, first aqueous polyurethane dispersion is polyester-type aqueous polyurethane, second aqueous polyurethane dispersion
For polyether type aqueous polyurethane.
2. the aqueous dumb paint of resistance to scratch according to claim 1, which is characterized in that first aqueous polyurethane dispersion
It is anionic resin with second aqueous polyurethane dispersion.
3. the aqueous dumb paint of resistance to scratch according to claim 1, which is characterized in that first aqueous polyurethane dispersion
Partial size be 3-5 μm, solid content 30-34%, pH 7-8, glossiness 4-5GU.
4. the aqueous dumb paint of resistance to scratch according to claim 2, which is characterized in that first aqueous polyurethane dispersion
Elongation at break be 600-700%, tensile strength 15-26MPa.
5. the aqueous dumb paint of resistance to scratch according to claim 2, which is characterized in that second aqueous polyurethane dispersion
Partial size be 4-8 μm, solid content 30-34%, pH 7-8, glossiness 1-2GU.
6. the aqueous dumb paint of resistance to scratch according to claim 5, which is characterized in that second aqueous polyurethane dispersion
Elongation at break be 200-300%.
7. -6 any aqueous dumb paint of resistance to scratch according to claim 1, which is characterized in that the self-crosslinking acrylic tree
The solid content of rouge is 42-46%, and pH 7-9, glass transition temperature is -18-0 DEG C, and minimum film formation temperature is 0-7 DEG C.
8. the aqueous dumb paint of resistance to scratch according to claim 7, which is characterized in that the aqueous silicon emulsion be molecular weight not
Aqueous emulsion of dimethyl polysiloxane fluid lower than 100000, solid content 38-42%, pH 7-9.
9. the preparation method of any aqueous dumb paint of resistance to scratch of claim 1-8, which is characterized in that including following step
It is rapid:
1) the first aqueous polyurethane dispersion and the second aqueous polyurethane dispersion are mixed, mixture is obtained；
2) self-crosslinking acrylic resin is added in Xiang Suoshu mixture, and after carrying out the first stirring, aqueous silicon emulsion is added, carries out second
Then stirring is added coalescing agent and deionized water, obtains precursor；
3) levelling agent, crosslinking agent, damage resistant wax, slipping agent, defoaming agent and preservative is added in Xiang Suoshu precursor, carries out third and stirs
It mixes, filters, obtain the aqueous dumb paint of resistance to scratch.
10. the preparation method of the aqueous dumb paint of resistance to scratch according to claim 9, which is characterized in that first stirring
Revolving speed be 400-500r/min, the revolving speed of second stirring is 400-500r/min, and the revolving speed of third stirring is
600-800r/min；
The time of first stirring is 8-12min, and the time of second stirring is 8-12min, third stirring when
Between be 15-20min.
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| CN111303740A (en) * | 2020-03-04 | 2020-06-19 | 广东通力定造股份有限公司 | Preparation method of high-gloss scratch-resistant water-based touch oil |
| CN111763472A (en) * | 2020-07-27 | 2020-10-13 | 湖北楚之翼彩印有限责任公司 | Folding-resistant high-wear-resistant semi-matte waterborne polyurethane gloss oil |
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| CN112143356B (en) * | 2020-09-10 | 2022-03-22 | 嘉宝莉化工集团股份有限公司 | Water-based skin-feel super-matte wood paint |
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| CN112852274A (en) * | 2021-01-05 | 2021-05-28 | 广东轻工职业技术学院 | Water-based gloss oil and preparation method thereof |
| CN113861820A (en) * | 2021-09-30 | 2021-12-31 | 成都美中美涂料有限公司 | Water-based home decoration skin-feel matte white finish paint and production process thereof |
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| CN115109509A (en) * | 2022-08-18 | 2022-09-27 | 广东合胜实业股份有限公司 | Single-component environment-friendly water-based polyurethane waterproof coating and preparation and application thereof |
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