CN104774500B - Aqueous flexo scrapes chalk and preparation method and application off - Google Patents
Aqueous flexo scrapes chalk and preparation method and application off Download PDFInfo
- Publication number
- CN104774500B CN104774500B CN201510222505.7A CN201510222505A CN104774500B CN 104774500 B CN104774500 B CN 104774500B CN 201510222505 A CN201510222505 A CN 201510222505A CN 104774500 B CN104774500 B CN 104774500B
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- Prior art keywords
- aqueous
- chalk
- scrapes
- flexo
- aqueous flexo
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
- C09D11/033—Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
Abstract
Chalk and preparation method and application is scraped off the invention discloses a kind of aqueous flexo, belongs to printing technology.The aqueous flexo scrapes chalk off and is made up of composition as follows by mass percentage：15.0 25.0% aqueous polyurethane A, 20.0 30.0% aqueous polyurethane B, 40.0 50.0% titanium dioxides, 2.0 3.0% dispersants, 0.1 0.3% defoamer and 10.0 20.0% water.The present invention uses solvent-free aqueous polyurethane, adds titanium dioxide, overall process do not have organic solvent, the approximate zero-emissions of VOC can be effectively protected environment, and meets by using different aqueous polyurethane blendings the whole structure after printing.The present invention is free of the material of do harm to huamn body, workshop odorlessness, without toxic gas, it is ensured that the health of workman；Terminal consumer contacts the ink powder scraped off when scraping ink off, will not produce health hazard.
Description
【Technical field】
The invention belongs to printing technology, more particularly to a kind of aqueous flexo scrapes chalk and preparation method thereof off with answering
With.
【Background technology】
The technology of the present invention is mainly used in a kind of specialities printing --- and lottery ticket instant opening type scrapes chalk printing off.
Instant lottery experienced following development course：Solvent-based ink silk-screen printing, the oily combination solvent type oil of UV isolation
Black silk-screen printing, solvent-based ink intaglio printing, alcohol-soluble water-based ink flexographic printing.Regardless of which kind of mode of printing, finished product is
Lottery all by partly constituting as follows：From inside to outside, 1, lottery ticket back side explanatory note；2nd, lottery ticket paper；3rd, anti-projection layer
And false proof layer；4th, lottery data；5th, UV separation layers；6th, scratch-off layer, scratch-off layer can be divided into two parts again, scrape black layer off and provide resistance to old
Change, ply adhesion, scrape white off covering be provided and scrape black, anti-stick, bottoming off, the performance such as printed thereon picture and text；7th, picture and text layer.Print
During brush, carried out by the way of successively printing, successively drying.
At present, because high VOC emission, high energy consumption and production efficiency are low, and equipment is difficult to transform, and the country has give stricted orders naughty
Eliminate silk-screen printing.Domestic production business based on solvent-based ink intaglio printing and alcohol-soluble water-based ink flexographic printing, wherein, alcohol
Dissolubility flexographic ink is completely dependent on import.Although both modes improve production efficiency, but there is high VOC emission, easily
The shortcomings of firing explosive and risk.
Be limited by the secrecy technology performance of instant lottery to scraping the particular/special requirement of chalk off, one be can not after accelerated ageing
Hardened, two be that face-to-face pressing is unable to adhesion, and three be that printing figure message is also wanted in scratch-off layer, and four be to cover to must be able to anti-perspective prize-winning
Information.In this regard, solvent-based ink is because its resin system is flexible, surface tension is low, fast drying is simultaneously thorough, the thickness that layer of ink can print
A bit, therefore there is a greater advantage；And entirety is scraped off below from common flexo water-based ink with the aqueous chalk that scrapes off as covering
Black, anti-stick and be the function such as printed thereon picture and text bottoming, then difficulty is very big or can not meet requirement at all, it is necessary to brand-new skill
The tackling key problem of art visual angle is solved, and final we achieve success, now the aqueous flexo with environmental-protecting performance scrape chalk off completely can be with
Substitute solvent-borne type and scrape chalk off.
【The content of the invention】
The primary and foremost purpose of the present invention is to overcome the deficiencies in the prior art to scrape off white there is provided a kind of aqueous flexo
Ink.
Scrape the preparation method of chalk off another object of the present invention is to provide described aqueous flexo.
It is still another object of the present invention to provide the application that described aqueous flexo scrapes chalk off.
The purpose of the present invention is achieved through the following technical solutions：A kind of aqueous flexo scrapes chalk off, by pressing quality hundred as follows
Divide the composition composition than meter：15.0-25.0% aqueous polyurethane A, 20.0-30.0% aqueous polyurethane B, 40.0-50.0% titaniums
White powder, 2.0-3.0% dispersants, 0.1-0.3% defoamers and 10.0-20.0% water.
Described aqueous flexo scrapes particle diameter≤15 μm of chalk off.
The viscosity that described aqueous flexo scrapes chalk off is 11-13 〃.
Described aqueous flexo scrapes tinting strength, tinting power >=98% of chalk off.
The pH value that described aqueous flexo scrapes chalk off is 8.0-8.2.
Described aqueous polyurethane is to replace organic solvent as the new polyurethane system of decentralized medium, also referred to as water using water
Dispersed polyurethane, aqueous polyurethane or water-based polyurethane；Aqueous polyurethane is using water as solvent, pollution-free, safe and reliable, mechanicalness
Can excellent, compatibility it is good, it is easily modified the advantages of.
Described aqueous polyurethane A is preferably PU-208 aqueous polyurethanes.
Described aqueous polyurethane B is preferably leatherette paper plastic cement chemical fibre resin HMP-1302.
Described dispersant is preferably BYK190 dispersants.
Described defoamer is preferably organic silicon defoamer.
Described water is preferably pure water.
Described aqueous flexo scrapes the preparation method of chalk off, comprises the following steps：By 15.0-25.0% aqueous polyurethanes
A pours into material cylinder, adds 2.0-3.0% dispersants, 10.0-20.0% water and 40.0-50.0% titanium dioxides under 800rpm stirrings,
After 800rpm stirs, compound is obtained；Described compound is ground to particle diameter≤15 μm, mill base is obtained, color is adjusted
The pH value of slurry is 8.0-8.2, and 20.0-30.0% aqueous polyurethane B and 0.1-0.3% defoamers are added into mill base, and stirring is equal
It is even, obtain aqueous flexo and scrape chalk off；Described percentage is mass percent.
Described grinding is carried out preferably in sand mill.
Described aqueous flexo scrapes chalk off and can be applied to printed lottery tickets and need to scrape the invoice of prize off.
Described lottery ticket is preferably welfare lottery ticket or sports lottery ticket.
The present invention has the following advantages and effect relative to prior art：
(1) present invention uses solvent-free aqueous polyurethane, adds titanium dioxide, and overall process does not have organic solvent, VOC approximate zero
Discharge, can be effectively protected environment.Polyurethane system is used instead to increase ink pliability and weatherability, is scraped off close to solvent-borne type
The performance of ink.Because polyurethane can accomplish extremely hard and dead-soft characteristic, therefore we use different aqueous polyurethane blendings
To meet the whole structure after printing.Wetability is realized by soft aqueous polyurethane, well sprawls, is dried on UV separation layers
It is flexible after film, scrape feel off well, not dirty hand；Case hardness, the face-to-face adhesion of printed matter are improved by hard aqueous polyurethane.
Also, aqueous polyurethane system is used, the inertia close with traditional solvent-borne ink is resulted in, it is ensured that printing finished product preserves steady
It is fixed, will not occur interlayer fusion, obtain excellent ageing properties.
(2) present invention is prepared aqueous flexo and is scraped off chalk, rutile-type using rutile type titanium white and dispersant with high efficiency
The particle diameter of titanium dioxide is small, oil absorption is low and covers, and is cooperated with dispersant, improves aqueous polyurethane and titanium dioxide
Compatibility scrapes black, effective printing instant lottery surface picture and text off there is provided efficient covering power to cover.
(3) low energy consumption and low noise：The aqueous flexo of the present invention, which scrapes chalk off, can use hot blast plus infrared drying mode,
It is that drying can be achieved using a small amount of high-temperature hot-air, reduces energy consumption.Meanwhile, the air quantity needed in the drying process less, can have
Effect reduces blower fan, the noise of air duct.
(4) high efficiency：The aqueous flexo of the present invention scrapes chalk off and uses flexographic printing, and plate-making efficiency high, expense are low, production
Efficiency also can be constantly improve with printing machine drying efficiency.
(5) present invention is free of the material of do harm to huamn body, workshop odorlessness, without toxic gas, it is ensured that workman's
Health；Terminal consumer contacts the ink powder scraped off when scraping ink off, will not produce health hazard.
【Embodiment】
The present invention is described in further detail with reference to specific embodiment.
Burn-in test：80 humidity, 80 temperature accelerated ageing 24 hours (climatic chamber), pencil hardness instrument hardness test 6B
50 grams of counterweights of pencil can scrape clean noresidue on printed matter, and separation layer off from separation layer.
Viscous back of the body test：Print sample face-to-face, pressurize 200-400 Kilogram Force Per Meters2, printed matter deposits at a temperature of 80 humidity 80
Put 24 hours and do not glue.
Water-based acrylic resin includes emulsion acrylic resin, aqueous acrylic resin dispersion and (is also known as water-dilutable propylene
Acid) and acrylic resin aqueous solution.Emulsion is mainly emulsified in water by oiliness vinyl monomer draws in water-based free radical initiator
Synthesis is given, and resin water dispersion is then by free radical solution polymerization or the progressively different technique synthesis such as polymerisation in solution
's.In terms of particle diameter：Emulsion particle diameter>Resin water dispersion particle diameter>Aqueous solution particle diameter.
Aqueous polyurethane is to replace organic solvent as the new polyurethane system of decentralized medium using water, and also referred to as moisture dissipates poly-
Urethane, aqueous polyurethane or water-based polyurethane.Aqueous polyurethane is using water as solvent, and pollution-free, safe and reliable, mechanical performance is excellent
Good, compatibility is good, it is easily modified the advantages of.
Surface tension be liquid surface layer due to molecular attraction is unbalanced and produce along surface action in any boundary line
Tension force.Different generally, due to environment, the molecule in interface is different from being in mutually intrinsic molecule institute stress.
A hydrone inside water by the active force of surrounding water molecules to make a concerted effort be 0, but a hydrone on surface is not so good as
This.Because upper sheaf space gas molecule in space is less than internal liquid phase molecule to its attraction to its attraction, so suffered by the molecule
Make a concerted effort to be not equal to zero, its resultant direction is perpendicularly oriented to liquid internal, as a result cause liquid surface that there is the trend reduced automatically, this
Plant convergent force and be referred to as surface tension.
Surface energy, similarly applied to solid state physics, because superficial layer atom is not compensated for towards the bond energy of outside,
So that surface particle has extra potential energy, referred to as surface energy than internal particle.
Embodiment 1
15.0% aqueous polyurethane A (the auspicious dimerization chemical product Co., Ltd in Guangzhou, PU-208) is poured into material cylinder, in 800rpm
Stirring is lower add 3.0% dispersant (Bick chemistry, BYK190), 20.0% water and 40.0% titanium dioxide (du pont company,
R902), after 800rpm stirs, compound is obtained；Described compound is placed in into sand mill, and (Kai Xi sections plant equipment has
Limit company, BT4)) in be ground to particle diameter≤15 μm, obtain mill base, the pH value of regulation mill base is 8.0, the addition into mill base
21.7% aqueous polyurethane B (Foshan sea is along Science and Technology Ltd., HMP-1302) and 0.3% organic silicon defoamer (Guangzhou occasion brightness
Trade Co., Ltd, DC65), stir, obtain aqueous flexo and scrape chalk off；Described percentage is mass percent.
It is white that described aqueous flexo, which scrapes chalk outward appearance off, and its particle diameter≤15 μm (50 μm of double flute Hegman grind gages) is glued
Spend for 11-13 〃 (Japanese 4# glasss), tinting strength, tinting power >=98% (is contrasted) with standard sample, pH value is 8.0-8.2 (pH value tester).
Embodiment 2
20.0% aqueous polyurethane A (the auspicious dimerization chemical product Co., Ltd in Guangzhou, PU-208) is poured into material cylinder, in 800rpm
Stirring is lower add 3.0% dispersant (Bick chemistry, BYK190), 20.0% water and 35.0% titanium dioxide (du pont company,
R902), after 800rpm stirs, compound is obtained；Described compound is placed in into sand mill, and (Kai Xi sections plant equipment has
Limit company, BT4)) in be ground to particle diameter≤15 μm, obtain mill base, the pH value of regulation mill base is 8.0, the addition into mill base
21.7% aqueous polyurethane B (Foshan sea is along Science and Technology Ltd., HMP-1302) and 0.3% organic silicon defoamer (Guangzhou occasion brightness
Trade Co., Ltd, DC65), stir, obtain aqueous flexo and scrape chalk off；Described percentage is mass percent.
It is white, its particle diameter≤15 μm (50 μm of double flute Hegman grind gages) that described aqueous flexo, which scrapes chalk outward appearance off, and viscosity is 11-
13 〃 (Japanese 4# glasss), tinting strength, tinting power >=98% (is contrasted) with standard sample, and pH value is 8.0-8.2 (pH value tester).
Embodiment 3
25.0% aqueous polyurethane A (the auspicious dimerization chemical product Co., Ltd in Guangzhou, PU-208) is poured into material cylinder, in 800rpm
Stirring is lower add 2.0% dispersant (Bick chemistry, BYK190), 17.0% water and 35.0% titanium dioxide (du pont company,
R902), after 800rpm stirs, compound is obtained；Described compound is placed in into sand mill, and (Kai Xi sections plant equipment has
Limit company, BT4)) in be ground to particle diameter≤15 μm, obtain mill base, the pH value of regulation mill base is 8.0, the addition into mill base
20.8% aqueous polyurethane B (Foshan sea is along Science and Technology Ltd., HMP-1302) and 0.2% organic silicon defoamer (Guangzhou occasion brightness
Trade Co., Ltd, DC65), stir, obtain aqueous flexo and scrape chalk off；Described percentage is mass percent.
It is white that described aqueous flexo, which scrapes chalk outward appearance off, and its particle diameter≤15 μm (50 μm of double flute Hegman grind gages) is glued
Spend for 11-13 〃 (Japanese 4# glasss), tinting strength, tinting power >=98% (is contrasted) with standard sample, pH value is 8.0-8.2 (pH value tester).
Embodiment 4
15.8% aqueous polyurethane A (the auspicious dimerization chemical product Co., Ltd in Guangzhou, PU-208) is poured into material cylinder, in 800rpm
Stirring is lower add 2.0% dispersant (Bick chemistry, BYK190), 17.0% water and 35.0% titanium dioxide (du pont company,
R902), after 800rpm stirs, compound is obtained；Described compound is placed in into sand mill, and (Kai Xi sections plant equipment has
Limit company, BT4)) in be ground to particle diameter≤15 μm, obtain mill base, the pH value of regulation mill base is 8.0, the addition into mill base
30.0% aqueous polyurethane B (Foshan sea is along Science and Technology Ltd., HMP-1302) and 0.2% organic silicon defoamer (Guangzhou occasion brightness
Trade Co., Ltd, DC65), stir, obtain aqueous flexo and scrape chalk off；Described percentage is mass percent.
It is white that described aqueous flexo, which scrapes chalk outward appearance off, and its particle diameter≤15 μm (50 μm of double flute Hegman grind gages) is glued
Spend for 11-13 〃 (Japanese 4# glasss), tinting strength, tinting power >=98% (is contrasted) with standard sample, pH value is 8.0-8.2 (pH value tester).
The embodiment of present invention described above, is not intended to limit the scope of the present invention..Any basis
Various other corresponding changes and deformation made by the technical concept of the present invention, should be included in the guarantor of the claims in the present invention
In the range of shield.
Claims (7)
1. a kind of aqueous flexo scrapes chalk off, it is characterised in that is made up of and is made raw material as follows by mass percentage：
15.0-25.0% aqueous polyurethane A, 20.0-30.0% aqueous polyurethane B, 40.0-50.0% titanium dioxide, 2.0-3.0% disperse
Agent, 0.1-0.3% defoamers and 10.0-20.0% water, wherein, the aqueous polyurethane A is PU-208 aqueous polyurethanes, described
Aqueous polyurethane B be leatherette paper plastic cement chemical fibre resin HMP-1302, the aqueous flexo scrape off chalk viscosity be 11-
13 〃, the viscosity is obtained by Japanese 4# glasss of measurement, and the pH value that the aqueous flexo scrapes chalk off is 8.0-8.2.
2. aqueous flexo according to claim 1 scrapes chalk off, it is characterised in that described aqueous flexo scrapes chalk off
Particle diameter≤15 μm.
3. aqueous flexo according to claim 1 scrapes chalk off, it is characterised in that described aqueous flexo scrapes chalk off
Tinting strength, tinting power >=98%.
4. aqueous flexo according to claim 1 scrapes chalk off, it is characterised in that described dispersant is scattered for BYK190
Agent；Described defoamer is organic silicon defoamer.
5. the aqueous flexo described in claim any one of 1-4 scrapes the preparation method of chalk off, it is characterised in that including following step
Suddenly：15.0-25.0% aqueous polyurethanes A is poured into material cylinder, 2.0-3.0% dispersants, 10.0- is added under 800rpm stirrings
20.0% water and 40.0-50.0% titanium dioxides, after 800rpm stirs, obtain compound；By described mixing abrasive lapping
To particle diameter≤15 μm, mill base is obtained, the pH value of regulation mill base is 8.0-8.2, and the aqueous poly- ammonia of 20.0-30.0% is added into mill base
Ester B and 0.1-0.3% defoamer, stirs, and obtains aqueous flexo and scrapes chalk off；Described percentage is mass percent.
6. the aqueous flexo described in claim any one of 1-4 scrapes chalk off applied to printed lottery tickets and needs to scrape the hair of prize off
Ticket.
7. aqueous flexo according to claim 6 scrapes the application of chalk off, it is characterised in that described lottery ticket is that welfare is color
Ticket or sports lottery ticket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510222505.7A CN104774500B (en) | 2015-05-04 | 2015-05-04 | Aqueous flexo scrapes chalk and preparation method and application off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510222505.7A CN104774500B (en) | 2015-05-04 | 2015-05-04 | Aqueous flexo scrapes chalk and preparation method and application off |
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| Publication Number | Publication Date |
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| CN104774500A CN104774500A (en) | 2015-07-15 |
| CN104774500B true CN104774500B (en) | 2017-09-26 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105860652A (en) * | 2016-04-28 | 2016-08-17 | 佛山市恒学科技服务有限公司 | Environment-friendly water-based ink |
| CN110143074B (en) * | 2019-05-27 | 2021-08-10 | 青艺（福建）烫画科技有限公司 | Environment-friendly heat transfer printing film and preparation method thereof |
| CN117304444A (en) * | 2023-10-31 | 2023-12-29 | 北京中彩印制有限公司 | Water-based polyurethane and preparation method thereof, and water-based scratch-off ink and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6058955B2 (en) * | 2011-12-15 | 2017-01-11 | 株式会社Ｏｋｉデータ・インフォテック | Ink jet recording ink, ink cartridge, ink jet recording ink manufacturing method, ink cartridge manufacturing method, recording method |
| CN102604478A (en) * | 2012-03-25 | 2012-07-25 | 重庆宏图油墨有限公司 | Alcohol-aqueous general composite printing ink and preparation method thereof |
| CN104822724B (en) * | 2012-11-16 | 2017-06-09 | 巴斯夫欧洲公司 | Polyurethane, its dispersion, its preparation and purposes |
| CN104419250B (en) * | 2013-09-10 | 2016-09-14 | 南雄市连邦化工石油科技有限公司 | A kind of aqueous black scrapes the preparation method of ink off |
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