CN113214704A - Weather-resistant ink, manufacturing method and testing method thereof - Google Patents
Weather-resistant ink, manufacturing method and testing method thereof Download PDFInfo
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- CN113214704A CN113214704A CN202110662386.2A CN202110662386A CN113214704A CN 113214704 A CN113214704 A CN 113214704A CN 202110662386 A CN202110662386 A CN 202110662386A CN 113214704 A CN113214704 A CN 113214704A
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- photoinitiator
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 238000012360 testing method Methods 0.000 title claims description 36
- 229920000728 polyester Polymers 0.000 claims abstract description 29
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 23
- 239000000945 filler Substances 0.000 claims abstract description 18
- 239000003085 diluting agent Substances 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 14
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 13
- 239000000049 pigment Substances 0.000 claims abstract description 12
- 239000002270 dispersing agent Substances 0.000 claims abstract description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 8
- 229920000058 polyacrylate Polymers 0.000 claims abstract description 7
- 238000009736 wetting Methods 0.000 claims abstract description 6
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 229910052724 xenon Inorganic materials 0.000 claims description 22
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 22
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 12
- 238000004088 simulation Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000178 monomer Substances 0.000 claims description 8
- XRMBQHTWUBGQDN-UHFFFAOYSA-N [2-[2,2-bis(prop-2-enoyloxymethyl)butoxymethyl]-2-(prop-2-enoyloxymethyl)butyl] prop-2-enoate Chemical compound C=CC(=O)OCC(COC(=O)C=C)(CC)COCC(CC)(COC(=O)C=C)COC(=O)C=C XRMBQHTWUBGQDN-UHFFFAOYSA-N 0.000 claims description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Substances CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- -1 acrylic ester Chemical class 0.000 claims description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 6
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- GTELLNMUWNJXMQ-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;prop-2-enoic acid Chemical class OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.CCC(CO)(CO)CO GTELLNMUWNJXMQ-UHFFFAOYSA-N 0.000 claims description 5
- FSDNTQSJGHSJBG-UHFFFAOYSA-N piperidine-4-carbonitrile Chemical compound N#CC1CCNCC1 FSDNTQSJGHSJBG-UHFFFAOYSA-N 0.000 claims description 5
- ZDQNWDNMNKSMHI-UHFFFAOYSA-N 1-[2-(2-prop-2-enoyloxypropoxy)propoxy]propan-2-yl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(C)COCC(C)OC(=O)C=C ZDQNWDNMNKSMHI-UHFFFAOYSA-N 0.000 claims description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 4
- FDSUVTROAWLVJA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol;prop-2-enoic acid Chemical compound OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.OCC(CO)(CO)COCC(CO)(CO)CO FDSUVTROAWLVJA-UHFFFAOYSA-N 0.000 claims description 4
- FIHBHSQYSYVZQE-UHFFFAOYSA-N 6-prop-2-enoyloxyhexyl prop-2-enoate Chemical compound C=CC(=O)OCCCCCCOC(=O)C=C FIHBHSQYSYVZQE-UHFFFAOYSA-N 0.000 claims description 4
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 claims description 4
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 claims description 4
- 239000005357 flat glass Substances 0.000 claims description 4
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 claims description 3
- NNAHKQUHXJHBIV-UHFFFAOYSA-N 2-methyl-1-(4-methylthiophen-2-yl)-2-morpholin-4-ylpropan-1-one Chemical compound CC1=CSC(C(=O)C(C)(C)N2CCOCC2)=C1 NNAHKQUHXJHBIV-UHFFFAOYSA-N 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 claims description 3
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 239000003999 initiator Substances 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000012860 organic pigment Substances 0.000 claims description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000009257 reactivity Effects 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 3
- 238000010998 test method Methods 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract 1
- 239000000976 ink Substances 0.000 description 41
- 238000007639 printing Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 13
- 235000019504 cigarettes Nutrition 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 238000005562 fading Methods 0.000 description 3
- 238000007645 offset printing Methods 0.000 description 3
- 238000006552 photochemical reaction Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 241000316887 Saissetia oleae Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000004643 material aging Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- RLWTYSCBQDVDRW-UHFFFAOYSA-N 2,2-bis(propanoyloxymethyl)butyl propanoate Chemical compound CCC(=O)OCC(CC)(COC(=O)CC)COC(=O)CC RLWTYSCBQDVDRW-UHFFFAOYSA-N 0.000 description 1
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical group [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002431 foraging effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000005297 material degradation process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000003504 photosensitizing agent Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C09D11/101—Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/004—Investigating resistance of materials to the weather, to corrosion, or to light to light
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Ecology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Environmental & Geological Engineering (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention discloses a weather-resistant ink, a preparation method and a test method thereof, wherein the weather-resistant ink is mainly prepared from the following raw materials in parts by weight: 40-60 parts of polyacrylate oligomer, 8-15 parts of reactive diluent, 4-10 parts of photoinitiator, 10-15 parts of pigment, 3-6 parts of filler, 1-3 parts of dispersant and 1-2 parts of auxiliary agent; the functionality of the polyester acrylate oligomer is between 3 and 7. Higher functionality reads on polyester acrylic, which is more reactive and thus increases cure speed, but too high functionality leads to increased tack and reduced flexibility. The composite material has good toughness, proper drying speed, good filler wetting effect, good oleophylic-hydrophilic balance and excellent chromaticity resistance. Through the matching of the components and the manufacturing method, the invention has better weather resistance, has smaller color difference change in different areas and different temperatures, and effectively improves the identification degree of printed matters.
Description
Technical Field
The invention relates to the technical field of cigarette label printing, in particular to weather-resistant ink, a manufacturing method and a testing method thereof.
Background
Ink is an important material for printing, and is used for expressing patterns and characters on a printing material through printing or inkjet. The ink comprises a main component and an auxiliary component which are uniformly mixed and repeatedly rolled to form a viscous colloidal fluid. The paint consists of a binder (resin), a pigment, a filler, an auxiliary agent, a solvent and the like. The printing ink is used for various printing of books, periodicals, packaging decoration, building decoration, electronic circuit boards and the like. As social demands increase, ink varieties and yields also expand and grow accordingly.
However, in actual printing, the printed product is greatly affected by the processing technology, the processing environment, the ink composition and the environment where the printed product is located, so that under different environments (and/or different regions), the ink may change correspondingly, thereby causing color difference. Particularly for cigarette cases (cigarette labels), the variation of the color difference may be one of the methods for identifying whether the cigarette case is genuine, so the composition of the ink, the manufacturing method and the testing process are critical factors for the stability of the printing of the cigarette case. Therefore, the weather resistance of the ink after UV offset printing on cigarette packs is a critical factor for ensuring the stability of the printed matter.
Disclosure of Invention
The invention mainly aims to provide weather-resistant ink, a manufacturing method and a testing method thereof, aiming at improving the ink stability of cigarette case printed matters, ensuring that the cigarette case can not generate larger color difference in different regions or different environments, controlling the color difference within an allowed value and ensuring the identification degree of products.
In order to achieve the purpose, the invention provides a weather-resistant oil which is mainly prepared from the following raw materials in parts by weight:
40-60 parts of polyacrylate oligomer
8-15 parts of reactive diluent
4-10 parts of photoinitiator
10-15 parts of pigment
3-6 parts of filler
1-3 parts of dispersant
1-2 parts of an auxiliary agent;
the functionality of the polyester acrylate oligomer is between 3 and 7.
(higher reading of the functionality of the polyester acrylic acid is higher, the reactivity is stronger, so that the curing speed can be improved, but higher functionality can cause higher viscosity and lower flexibility, so that the polyester acrylic ester with the functionality of 3-7 is selected, has good toughness, proper drying speed, good wetting effect on the filler, good lipophilic-hydrophilic balance and excellent chromaticity resistance.)
In the preferred scheme:
the polyester acrylate oligomer is an aggregated acrylic acid;
the pigment is one or a combination of two lightfast organic pigments;
the reactive diluent is an acrylate monomer;
the dispersant is a high molecular weight dispersant.
In the preferred scheme: the photoinitiator is as follows: 2-benzyl-2-dimethylamino-1- (4-morpholinylphenyl) butanone, 2, 4, 6-trimethylbenzoyl-diphenylphosphine oxide, 1-hydroxycyclohexyl phenyl ketone, and 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-propanone.
In the preferred scheme: the auxiliary agent is modified active methyl silicone oil with the viscosity of more than 10000 MPaS.
In the preferred scheme: the solid content of the photoinitiator, the co-initiator and the auxiliary agent is required to be more than 99%.
In the preferred scheme: the filler is one or two of calcium carbonate, talcum powder, kaolin and high-molecular polymer organic sand powder.
In the preferred scheme: the acrylate monomer is any one of ditrimethylolpropane tetraacrylate polyester, 1, 6-hexanediol diacrylate, dipropylene glycol diacrylate, tripropylene glycol diacrylate, pentaerythritol triacrylate, dipentaerythritol pentaacrylate, ethoxylated trimethylolpropane triacrylate and propoxylated trimethylolpropane triacrylate.
A method for preparing a weather-resistant ink,
adding 1 part of superfine talcum powder, 2 parts of superfine calcium carbonate filler and 16 parts of pigment into 22 parts of polyester acrylate oligomer according to the weight ratio, adding 1 part of hyperdispersant,
dispersing for 40 minutes by using a high-speed dispersion machine, and then grinding for 4-5 times by using three rollers until the fineness is less than or equal to 5 mu m to obtain base ink;
then adding 7 parts of reactive diluent, 1 part of 2-hydroxy-2-methyl-1-phenyl-1-acetone, 3 parts of 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-acetone photoinitiator and 1 part of polymer organic silicon assistant into the base ink, stirring for 30-60 minutes at the rotating speed of 2000-3000rpm/min of a high-speed dispersion machine, and controlling the temperature at 50-60 ℃.
In the preferred scheme: and when the photoinitiator is completely dissolved, adding the remaining 28 parts of polyacrylate oligomer, and dispersing at a high speed for 5 minutes to obtain the ink.
A method of testing a weatherable ink, comprising:
a box body;
the sunlight simulation device comprises a box body, a sunlight simulation device and a control system, wherein a xenon lamp is adopted in the box body, the xenon lamp can generate ultraviolet rays, and the sunlight simulation device also adopts one or any combination of a sunlight filter, a window glass filter and an ultraviolet extending filter;
the temperature is simulated, and a black plate thermometer or a black mark thermometer is also arranged in the box body;
a humid environment simulation that simulates a humid environment through a water spray or humidity control system.
The technical scheme of the invention has the advantages that:
1. higher functionality reads on polyester acrylic, which is more reactive and thus increases cure speed, but too high functionality leads to increased tack and reduced flexibility. Therefore, the polyester acrylate with the functionality of 3-7 is selected, has good toughness, proper drying speed, good filler wetting effect, good oleophylic-hydrophilic balance and excellent chromaticity resistance, and has good weather resistance, small color difference change in different areas and at different temperatures and effectively improved identification degree of printed matters through the matching of the components and the preparation method;
2. the drying speed of the ink is proper (such as UV offset printing) by selecting a reactive diluent with proper functionality and polyester acrylate, and can reach 30M/min (40W/cm mercury lamp, the lamp distance is 20cm), and the viscosity can be controlled to be 8-14. The printing adaptability and the transfer performance of the ink are good.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to table data, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that if directional indications (such as … …, which is up, down, left, right, front, back, top, bottom, inner, outer, vertical, transverse, longitudinal, counterclockwise, clockwise, circumferential, radial, axial) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative position relationship, motion condition, etc. of the components in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first" or "second", etc. in the embodiments of the present invention, the description of "first" or "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The weather-resistant ink comprises the following raw materials in parts by weight:
40-60 parts of polyacrylate oligomer
8-15 parts of reactive diluent
4-10 parts of photoinitiator
10-15 parts of pigment
3-6 parts of filler
1-3 parts of dispersant
1-2 parts of an auxiliary agent;
the functionality of the polyester acrylate oligomer is between 3 and 7.
Among them, the higher the functionality of the polyester acrylic, the more reactive, which can increase the curing speed, but too high a functionality can lead to increased tackiness and reduced flexibility. Therefore, the polyester acrylate with the functionality of 3-7 is selected, has good toughness, proper drying speed, good filler wetting effect, good oleophylic-hydrophilic balance and excellent chromaticity resistance.
In the present examples, the polyester acrylate oligomer is an agglomerated acrylic such as Sartomer's CN2203, cyante EB436, changlie 6353-1, etc., where Sartomer's CN2203 series polyester acrylates are preferred;
in the embodiment of the invention, the pigment is one or a combination of two lightfast organic pigments, is characterized by excellent lightfast and heat-resistant performance, is a key material which can improve the performance of the UV offset printing ink, and is preferably P.Y.180 of Craine;
in the embodiment of the invention, the reactive diluent is an acrylate monomer, and the reactive diluent is a high-functionality reactive diluent, mainly an acrylate monomer. Suitable acrylate monomers are any one of ditrimethylolpropane tetraacrylate polyester, 1, 6-hexanediol diacrylate, dipropylene glycol diacrylate, tripropylene glycol diacrylate, pentaerythritol triacrylate, dipentaerythritol pentaacrylate, ethoxylated trimethylolpropane triacrylate, propoxylated trimethylolpropane triacrylate. Ditrimethylolpropane tetraacrylate polyester, ethoxylated trimethylolpropane triacrylate or dipropylene glycol diacrylate are preferred. The common characteristics of the catalyst are high reaction activity, good dilution effect and good flexibility. The drying speed of the ink is proper by selecting the reactive diluent with proper functionality and the polyester acrylate, can reach 30M/min (40W/cm mercury lamp, lamp distance is 20cm), and the viscosity can be controlled to be 8-14. The printing adaptability and the transfer performance of the ink are good. ) (ii) a
In the present examples, the dispersant is a high molecular weight dispersant, preferably a 24000 hyperdispersant from Lubrizol. The dispersing effect is excellent, and the emulsifying property and the storage stability of the ink system are not affected.
In an embodiment of the present invention, the photoinitiator is: 2-benzyl-2-dimethylamino-1- (4-morpholinylphenyl) butanone, 2, 4, 6-trimethylbenzoyl-diphenylphosphine oxide, 1-hydroxycyclohexyl phenyl ketone, 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-propanone or two, and is characterized by high reaction activity and good thermal stability.
In the embodiment of the invention, the auxiliary agent is modified active methyl silicone oil with viscosity of more than 10000MPaS, preferably DC-10000 high-molecular organosilicon auxiliary agent of Dow-corning company, and has excellent performance. )
In the embodiment of the invention, the solid content of the photoinitiator, the co-initiator and the auxiliary agent is required to be more than 99%.
In the embodiment of the invention, the filler is one or two of calcium carbonate, talcum powder, kaolin and high polymer organic sand powder.
In the embodiment of the present invention, the acrylate monomer is any one of ditrimethylolpropane tetraacrylate polyester, 1, 6-hexanediol diacrylate, dipropylene glycol diacrylate, tripropylene glycol diacrylate, pentaerythritol triacrylate, dipentaerythritol pentaacrylate, ethoxylated trimethylolpropane triacrylate, and propoxylated trimethylolpropane triacrylate.
A preparation method of weather-resistant ink comprises the steps of adding 1 part of superfine talcum powder, 2 parts of superfine calcium carbonate filler and 16 parts of pigment (Kelaien P.Y.180) into 22 parts of polyester acrylate oligomer 10 parts (CN 2203 of Sartomer) and 12 parts (Changxing 6353-1) according to the weight ratio, adding 1 part of Lubrizol 24000 hyper-dispersant, dispersing for 40 minutes by using a high-speed dispersion machine, and then grinding for 4-5 times by using three rolls until the fineness is less than or equal to 5 mu m to obtain base ink; then adding 7 parts of ditrimethylolpropane tetraacrylate polyester serving as an active diluent, 1 part of 2-hydroxy-2-methyl-1-phenyl-1-acetone, 3 parts of 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-acetone photoinitiator and 1 part of DC-10000 high-molecular organic silicon assistant from Dow-corning company into the base ink, stirring for 30-60 minutes at the rotating speed of 2000-3000rpm/min of a high-speed dispersion machine, and controlling the temperature at 50-60 ℃.
In the present example, after the photoinitiator was completely dissolved, the remaining 28 parts of polyacrylate oligomer (18 parts of Sartomer CN2203 and 10 parts of Youxing 6353-1) was added and dispersed at high speed for 5 minutes to obtain the ink.
A method for testing a weatherable ink, comprising:
a box body;
the sunlight simulation device comprises a box body, a sunlight simulation device and a control system, wherein a xenon lamp is adopted in the box body, the xenon lamp can generate ultraviolet rays, and the sunlight simulation device also adopts one or any combination of a sunlight filter, a window glass filter and an ultraviolet extending filter;
the temperature is simulated, and a black plate thermometer or a black mark thermometer is also arranged in the box body;
a humid environment simulation that simulates a humid environment through a water spray or humidity control system.
The light resistance of the light-fast four-color ink refers to the color stability of the print under the irradiation of sunlight. The determination of the lightfastness is usually evaluated by the "blue light fastness Standard for grade 8". The method comprises the steps of placing a sample to be detected and a standard sample of the blue printed matter under a xenon arc lamp for insolation, and comparing the fading degree of the sample to be detected and the standard sample of the blue printed matter to obtain the lightfastness grade of the lightfastness four-color ink.
The weather resistance of the ink directly influences the appearance effect of the printed matter due to the fact that the printed matter needs to be stored for a long time and exposed to sunlight, and therefore the weather resistance of the printing ink is very necessary to be measured. Therefore, it is possible to accelerate the acquisition of the test results. The following tests were performed for correlation between the xenon lamp accelerated weathering test and natural exposure of the printing inks.
Wherein aging damage is mainly caused by three factors: light, temperature and humidity. Any of these three factors can cause material degradation: the combined action of the two is larger than the harm caused by any one factor.
The first is illumination: the chemical bonds of the high molecular materials have different sensitivities to rays of different bands of sunlight and generally correspond to a threshold, and short-band ultraviolet rays of the sunlight are the main reasons for aging of physical properties of most polymers. For example, the threshold of action of the C-N (carbon-nitrogen) bond is 393nm, however, for certain prints and inks, long-wavelength ultraviolet light, and even visible light, can damage them, causing discoloration or fading.
The second is temperature: the higher the temperature, the faster the chemical reaction. The aging reaction is a photochemical reaction, and the temperature does not influence the photochemical reaction speed in the photochemical reaction, but influences the chemical reaction speed of the post-dimension. The effect of temperature on material aging tends to be non-linear.
The third is humidity: water can directly participate in the material aging reaction. Relative humidity, dew water, rain water and the like are several main manifestations of water in nature. Studies have shown that outdoor materials will be in a wet state for long periods of time each day (on average up to 8-12 hours per day), whereas dew is the main cause of outdoor wetness. Dew is more hazardous than rain water because it adheres to materials for a longer period of time, creating a more severe wet attack. For indoor materials, only the effect of relative humidity is generally considered.
In the test, the xenon lamp can be used as a light source of a xenon lamp test box, can generate ultraviolet rays, visible light and infrared rays, and can well simulate the full-spectrum sun. The spectrum produced by the xenon lamp must be filtered before being used for testing to reduce the unwanted part of the uv spectrum. Different spectra can be obtained using different types of glass filters. The use of the filter depends on the material being tested and the end use conditions of the product. The cutoff points for the short bands of uv filtered by the different filters are different, which will greatly affect the rate and type of aging. There are three types of filters that are often used: daylight filters, window glass filters, uv extending filters. Glazing filters are generally chosen in print and printing ink testing.
The latest xenon lamp test chamber needs to be equipped with an irradiance control system, for example, a BGD867 xenon lamp aging test chamber uses a sun eye closed loop control system to provide stable illumination intensity. Within a xenon lamp test system, irradiance control is very important. The spectrum range of the xenon lamp extends from 295nm to 3000nm, the latest standard requires that the light intensity is controlled based on point control (such as ISO 11341 [ ] ASTM G155-05 a4] ISO4892-2:2003, etc.), the selection of the control point is based on the difference between the simulated environment and the performance of the detection material, and for the outdoor environment, the physical performance of the detection material generally adopts a 340nm control point; for indoor environment, the control point of 420nm is generally adopted to detect the discoloration and fading of the material. TUV control of 300-400nm is also used in some standards. irradiance/W- (. square meter,. nm) -120151208/.
Temperature control is also important in xenon lamp test equipment because temperature affects the rate at which materials age. The xenon lamp test chamber is generally used for accurately controlling the surface temperature of a sample by a black plate thermometer or a black mark thermometer. The ISO standards in europe generally use black-scale thermometers, while some standards in the united states use black-scale thermometers. Some models of xenon lamp test boxes can control the air temperature of the box body at the same time so as to achieve comprehensive exposure environment temperature control.
The xenon lamp test box can simulate the influence of humidity through water spraying or a humidity control system, and the water spraying can simulate thermal shock and stress corrosion of rainwater on outdoor products. Humidity affects the type and rate at which certain articles (e.g., certain textiles or inks, etc.) are aged, and control of relative humidity is recommended in the testing standards for such materials.
According to GB/T22771-2008[6]Test conditions in the standard, xenon accelerated weathering tests were performed on 11 different ink samples. The specific test conditions are shown in Table 1
Table 1: xenon lamp acceleration weather resistance test condition
Specific gravity of each example
The (2-phenyl-2-dimethylamino-1- (4-morpholinylphenyl) -butanone-1 (BDMB)) has the maximum absorption wavelength of 324, and the nano high-activity photoinitiator is often matched with a thioxanthone photosensitizer for use, is applied to a pigment coloring system, and shows excellent photoinitiation performance.
(CN 2203 series polyester acrylate of Sartomer) has good toughness, proper drying speed, good wetting effect on the filler and good lipophilic-hydrophilic balance.
The (trimethylolpropane tripropionate) has good compatibility, high hardness and universality.
Wherein the surplus part is filler and auxiliary agent, the preferred embodiment can refer to the specific proportion of the manufacturing method of the weather-proof ink, and the preferred embodiment is the best embodiment.
2.2 test results
Instrumental measurement of color changes in exposed samplesΔE. We used CIE L a b color units, D65 illuminant, and 10 □ viewing angles. Table 2 below shows the results of the sample after exposure to lightΔE ×.
Table 2: xenon lamp accelerated weather resistance test result
2.3 analysis of test results
Before the accelerated weathering test, we have probably known that these 8 samples had better weathering, some had worse, and some had greater variability. The test results show that it is true as predicted, which indicates that different weathering ratings of the samples can be distinguished using the Q-SunXe-3 xenon lamp test chamber. Sample 3 in Table 2 is a sample having better weather resistance, sample 1 is a sample having poorer weather resistance, and sample 5 is a sample having ordinary weather resistance.
3. Light fastness Natural insolation test of printing ink
3.1 test procedures and results
While the laboratory accelerated lightfastness test was performed, we also performed natural exposure of these printed ink samples.
We place the sample close to the factory warehouse window, which is a harsher environment in which the sample is used in practice. The total exposure time was 61 days, and the specific test results are shown in Table 3.
Table 3: test results of natural solarization weather resistance
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the present specification and directly/indirectly applied to other related technical fields within the spirit of the present invention are included in the scope of the present invention.
Claims (10)
1. The weather-resistant ink is characterized by mainly being prepared from the following raw materials in parts by weight:
40-60 parts of polyacrylate oligomer
8-15 parts of reactive diluent
4-10 parts of photoinitiator
10-15 parts of pigment
3-6 parts of filler
1-3 parts of dispersant
1-2 parts of an auxiliary agent;
the functionality of the polyester acrylate oligomer is between 3 and 7.
(higher reading of the functionality of the polyester acrylic acid is higher, the reactivity is stronger, so that the curing speed can be improved, but higher functionality can cause higher viscosity and lower flexibility, so that the polyester acrylic ester with the functionality of 3-7 is selected, has good toughness, proper drying speed, good wetting effect on the filler, good lipophilic-hydrophilic balance and excellent chromaticity resistance.)
2. The weatherable ink of claim 1, wherein:
the polyester acrylate oligomer is an aggregated acrylic acid;
the pigment is one or a combination of two lightfast organic pigments;
the reactive diluent is an acrylate monomer;
the dispersant is a high molecular weight dispersant.
3. The weatherable ink of claim 1, wherein:
the photoinitiator is as follows: 2-benzyl-2-dimethylamino-1- (4-morpholinylphenyl) butanone, 2, 4, 6-trimethylbenzoyl-diphenylphosphine oxide, 1-hydroxycyclohexyl phenyl ketone, and 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-propanone.
4. The weatherable ink of claim 1, wherein: the auxiliary agent is modified active methyl silicone oil with the viscosity of more than 10000 MPaS.
5. The weatherable ink of claim 1, wherein: the solid content of the photoinitiator, the co-initiator and the auxiliary agent is required to be more than 99%.
6. The weatherable ink of claim 1, wherein: the filler is one or two of calcium carbonate, talcum powder, kaolin and high-molecular polymer organic sand powder.
7. The weatherable ink of claim 1, wherein: the acrylate monomer is any one of ditrimethylolpropane tetraacrylate polyester, 1, 6-hexanediol diacrylate, dipropylene glycol diacrylate, tripropylene glycol diacrylate, pentaerythritol triacrylate, dipentaerythritol pentaacrylate, ethoxylated trimethylolpropane triacrylate and propoxylated trimethylolpropane triacrylate.
8. The preparation method of the weather-resistant ink is characterized by comprising the following steps:
adding 1 part of superfine talcum powder, 2 parts of superfine calcium carbonate filler and 16 parts of pigment into 22 parts of polyester acrylate oligomer according to the weight ratio, adding 1 part of hyperdispersant,
dispersing for 40 minutes by using a high-speed dispersion machine, and then grinding for 4-5 times by using three rollers until the fineness is less than or equal to 5 mu m to obtain base ink;
then adding 7 parts of reactive diluent, 1 part of 2-hydroxy-2-methyl-1-phenyl-1-acetone, 3 parts of 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-acetone photoinitiator and 1 part of polymer organic silicon assistant into the base ink, stirring for 30-60 minutes at the rotating speed of 2000-3000rpm/min of a high-speed dispersion machine, and controlling the temperature at 50-60 ℃.
9. The method of making a weatherable ink according to claim 8, wherein: and when the photoinitiator is completely dissolved, adding the remaining 28 parts of polyacrylate oligomer, and dispersing at a high speed for 5 minutes to obtain the ink.
10. A method for testing a weatherable ink, comprising:
a box body;
the sunlight simulation device comprises a box body, a sunlight simulation device and a control system, wherein a xenon lamp is adopted in the box body, the xenon lamp can generate ultraviolet rays, and the sunlight simulation device also adopts one or any combination of a sunlight filter, a window glass filter and an ultraviolet extending filter;
the temperature is simulated, and a black plate thermometer or a black mark thermometer is also arranged in the box body;
a humid environment simulation that simulates a humid environment through a water spray or humidity control system.
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| CN116042017A (en) * | 2023-03-13 | 2023-05-02 | 湖南华庆科技有限公司 | High-tensile high-temperature-resistant resin ink and preparation method thereof |
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| CN104672986A (en) * | 2015-03-13 | 2015-06-03 | 深圳市顾康力化工有限公司 | UV ink with high weather resistance and preparation method thereof |
| CN108822614A (en) * | 2018-07-06 | 2018-11-16 | 深圳市海中辉新材料科技有限公司 | A kind of low energy consumption HUV/LEC printing ink and preparation method thereof |
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