CN101724313B - UV printing ink capable of being directly printed on UV coating and method for using printing ink - Google Patents
UV printing ink capable of being directly printed on UV coating and method for using printing ink Download PDFInfo
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- CN101724313B CN101724313B CN200810072012.XA CN200810072012A CN101724313B CN 101724313 B CN101724313 B CN 101724313B CN 200810072012 A CN200810072012 A CN 200810072012A CN 101724313 B CN101724313 B CN 101724313B
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Abstract
The invention discloses a UV printing ink capable of being directly printed on an ultraviolet curing (UV) coating and a method for using the printing ink. An auxiliary agent (-NCO/-OH auxiliary agent) is added to the common printing ink, namely, -NCO/-OH addition reaction is introduced in the photo initiated polymerization reaction, and dual curing reaction of UV and -NCO is realized, so the UV printing ink has strong adhesion with the UV coating, has stronger physicochemical properties, such as hardness, wear resistance, chemical resistance and ageing resistance and is printed on the UV coating, the continuity of the production process is realized and the production yield is improved. At the same time, compared with the conventional sandwich printing, the technology makes the UV printing ink have the three-dimensional texture effect.
Description
Technical field
The present invention relates to a kind of printing-ink and technology, relate to particularly a kind of UV ink that can directly print and the method for using this ink in ultraviolet light polymerization (UV) coating.
Background technology
UV-light (ultraviolet, UV) curing inks is to produce free radical by ultraviolet excitation, then causes the various active ingredients in formula by free radical, is converted into rapidly the process of solid.Uv curing ink is compared with traditional printing-ink, mode of printing and drying mode, and tool has the following advantages:
(1), non-volatility solvent discharge, environmentally safe;
(2), save the energy;
(3), production efficiency is high;
(4), wink-dry, dot gain is little, drying process is without dusting;
(5), floor space is little, can reduce investment;
UV curing inks can be divided into according to the difference of mode of printing: intaglio printing, lithography, silk screen printing, flexographic printing, spraying etc., also can be divided into according to stock: paper, metal, plastics, glass, matrix material etc.The common feature of UV curing inks is that they all contain matrix resin (oligopolymer, monomer etc.), toner, photosensitizers (as 369,907, TPO, TPO-L etc.), auxiliary agent, and all must irradiate and could solidify through UV.
Due to UV ink, at aspects such as environment, technology, quality product, mode of printings, to have other any traditional ink incomparable, therefore, since last century, the seventies was realized commercialization, industrialization, obtained development rapidly.For example, China Patent Publication No. CN1380366A, inscribes one's name as " intaglio printing decorative ink that UV is curing " and discloses a kind of curing intaglio printing decorative ink of UV that produces the various decorative patterns such as pseud metal-etching, refractive power, wrinkle, frost flower; China Patent Publication No. CN1454947A, inscribes one's name as " UV ray solidifying ink and use the print of this ink " and discloses a kind of have printing adaptability and the tractability that oil-based ink is good and the printing-ink that utilizes ultraviolet curing wink-dry simultaneously; China Patent Publication No. CN1580149A, inscribes one's name as " UV curable ink " and discloses a kind of ink that is applied to silk screen printing.
As mentioned above, on market, seen at present the product of a lot of printing UV ink, but be to be all directly printed on material, also comparatively rare with regard to realizing the printing of UV ink in very high UV coating at cross-linking density itself.Wherein, a kind of UV prints general process program: colored paint spraying-sandwich printing-UV spraying, printing be made in UV coating below, this scheme has overcome the difficult problem that UV ink can not be attached to UV coating top layer, but the complex process of this scheme, operation is many, expends man-hour, and product qualified rate is low.
Summary of the invention
The object of the invention is to overcome the deficiency of background technology, provide that a kind of technique is simple, operation is few, conforming product rate high, the UV ink that can directly print in ultraviolet light polymerization (UV) coating and the method for using this ink.
Technical scheme provided by the invention is as follows:
The UV ink directly printing on ultraviolet curable coating, is characterized in that, comprises the component of following proportion of composing:
Common UV ink: 78.0～85.0 weight parts;
Resin: 8.8～9.5 weight parts;
Adhesive agent: 5.0～6.0 weight parts;
Solidifying agent: 1.5～2.5 weight parts;
Wherein, solidifying agent is the performed polymer of contain-NCO/-OH base.
In aforesaid solidifying agent, its-NCO/-OH ratio is 12.0～16.0%.
In a preferred embodiment of the present invention, solidifying agent is N-methylol-3,4,5,6-tetrahydro-phthalic imidine, molecular formula: C
9h
11nO
3.
Aforesaid common UV ink is common on the market UV curable ink.In a preferred embodiment of invention, the SP series ink that the ink using is produced for Taiwan Yu Yuanfu company.
Aforesaid resin is selected from urethane resin, in an embodiment of invention, and the SG740 series plastics that the resin using is produced for NSK company, its main component is C
3h
8n
2o.
Aforesaid adhesive agent are selected from a kind of or its combination below: γ mercaptopropyitrimethoxy silane, 3-thiocyano propyl-triethoxyl silane, 3-sulfydryl propyl group-Trimethoxy silane, vinyltriethoxysilane, methacryloyl propyl trimethoxy silicane, gamma-amino-propyl-triethoxysilicane, 3-sulfydryl propyl group-triethoxyl silane, 2-sulfydryl propyl group-Trimethoxy silane, 2-sulfydryl propyl group-triethoxyl silane, 3-nitro propyl group-Trimethoxy silane, 3-nitro propyl group-triethoxyl silane, 3-chloropropyl-Trimethoxy silane, 3-chloropropyl-triethoxyl silane, 2-chloropropyl-Trimethoxy silane, 2-chloropropyl-triethoxyl silane, g-(2, 3-epoxy the third oxygen) propyl trimethoxy silicane.
A kind of UV ink that can directly print on ultraviolet curable coating of the present invention, in use, also available thinner dilutes.
Principles of Polymerization chemical equation related to the present invention is as follows:
The polyreaction of polyurethane-type acrylate:
The addition reaction of dual-component polyurethane system:
The dual cure reaction that UV and NCO are crosslinked:
A using method for the UV ink directly printing on ultraviolet curable coating, is characterized in that: comprise the following steps:
(1) colored paint spraying: product adopts vinylformic acid or polyurethanes coating, sprays the color that 1～2 road coating realizes product needed, per pass colored paint spraying thickness is 8～20 μ m, then by 50～70 ℃ of temperature, dries 10～30min;
(2) UV spraying: adopt acrylic Acid UV coating or other unsaturated polyester UV coating, together, its thickness is 12～25 μ m in spraying, after 45～65 ℃ of temperature are dried 7～20min, then is 500～1500mj/cm at energy
2uV lamp in irradiate once, make paint solidification;
(3) undercarriage;
(4) UV ink printing: use the described UV ink printing twice that can directly print on ultraviolet curable coating;
(5) dry: at the temperature of 50 ℃～70 ℃, dry 30min～60min;
(6) UV irradiates: use the UV fluorescent tube of 300nm～420nm wavelength, and energy is controlled to 500mj/cm
2～1200mj/cm
2in scope.
The effect of each step in technical process:
1, colored paint spraying: adopt vinylformic acid or urethane type coating, give surface of plastic product various colors, realize the requirement of product colour;
2, UV spraying: adopt acrylic Acid UV coating or other unsaturated polyester UV paint spay-coating, colored paint is carried out to provide protection, and give the various performance requriementss (as wear-resisting, hardness, resistance to alcohol, resistance to humid test, salt-fog resistant test and other possible requirement) that product should possess in actual use;
3, UV printing: be different from conventional printing, realize the outward appearance of product and the requirement of specified property;
4, dry: general sandwich printing (common ink) directly adopt dry or low-temperature short-time between baking just passable, and must at the temperature of 50～70 ℃, dry 30～60 minutes during employing UV ink printing,
5, UV irradiates: in assurance, meet after drying condition, use the UV fluorescent tube of 300～420nm wavelength, and energy is controlled to 500mj/cm
2～1200mj/cm
2carry out UV irradiation, printing type face is thoroughly solidified, and realize certain performance requriements.
6, check: the product of producing is tested, reject defective products;
7, post-treatment and finished product packing: carry out necessary Hou road processing (as assembling, standby glue, rivet hot etc.) or directly pack shipment.
Beneficial effect:
The present invention adds auxiliary agent (with-NCO/-OH analog assistant) in UV ink, i.e. introducing-NCO/-OH addition reaction in light initiating polymerizing reaction, realize UV and-reaction of the dual cure of NCO, thereby the brute force that realizes UV ink and UV coating is adhered to, and meet stronger physical and chemical performance (as hardness, wear-resisting, chemical resistance, ageing resistance etc.), realize the printing of UV ink on UV coating, realize the continuity of production process, improved the good article rate of producing; This technology has changed the not match volume effect of tool of conventional sandwich printshop simultaneously.
Embodiment
Embodiment 1
UV ink forms:
SP series ink: the 80Kg of Taiwan Yu Yuanfu company;
SG740 series plastics (main component: C
3h
8n
2o) 9Kg of NSK ink company;
Adhesive agent: γ-aminopropyl triethyl silicane H
2nCH
2cH
2cH
2si (OC
2h
5)
35Kg;
Solidifying agent: N-methylol-3,4,5,6-tetrahydro-phthalic imidine, molecular formula: C
9h
11nO
31.5Kg;
Thinner: be N-butanone, toluene, vinyl acetic monomer mixture 8Kg
In the present embodiment, UV ink mixes in advance in above ratio, stirs standby.
Process program related to the present invention is: colored paint spraying → oven dry → UV spraying → oven dry → UV irradiation → undercarriage → check → printing (UV ink) → oven dry → UV irradiation → check → post-treatment → finished product packing.
Technical process:
1, colored paint spraying: in phone housing UV coating, adopt vinylformic acid or urethane type coating, spray the color that 2 road coatings realize product needed, per pass colored paint spraying thickness is 8～20 μ m, then dries 20min by 60 ℃ of temperature;
2, UV spraying: adopt acrylic Acid UV coating or other unsaturated polyester UV paint spay-coating, give the high light of product or dumb light gloss; This process adopts one UV coating of UV paint spay-coating, and its thickness is 12～25 μ m, dries after 15min, then be 500～1500mj/cm at energy by 50 ℃ of temperature
2uV lamp in irradiate once, make paint solidification;
3, undercarriage: the phone housing that has sprayed UV finish paint is taken off;
4, check: entirely examine and inspect by random samples having sprayed the phone housing of UV finish paint, qualified product is delivered to subsequent processing;
5, UV printing: adopt the UV ink stirring of the present embodiment formula to print phone housing, print 2 roads.
6, dry: the phone housing printing is dried 50 minutes in drying shed at the temperature of 60 ℃;
7, UV irradiates: in assurance, meet after drying condition, use the UV fluorescent tube of 300～420nm wavelength, and energy is controlled to 500mj/cm
2～1200mj/cm
2carry out UV irradiation, printing type face is thoroughly solidified.
8, check: the product of producing is tested, reject defective products;
9, post-treatment and finished product packing: carry out necessary Hou road processing (as assembling, standby glue, rivet hot etc.) or directly pack shipment.
Embodiment 2
UV ink forms:
SP series ink: the 83Kg of Taiwan Yu Yuanfu company;
SG740 series plastics (main component: C
3h
8n
2o) 9.2Kg of NSK ink company;
Adhesive agent: g-(2,3-epoxy the third oxygen) propyl trimethoxy silicane CH
2oCHCH
2o (CH
2)
3sI (OCH
3)
35.5Kg;
SG740 solidifying agent: N-methylol-3,4,5,6-tetrahydro-phthalic imidine, molecular formula: C
9h
11nO
32.5Kg;
Thinner: N-butanone, toluene, vinyl acetic monomer 12Kg
In addition, technical process is identical.
The present invention is for the UV coating of the consumption electronic products such as mobile phone, Personal Handyphone System, bluetooth earphone, MP3.
The attainable performance index of product of producing by the present invention are as follows:
| Performance index type | Realize standard | Testing method |
| Sticking power | ≥4B | 3M test tape, GB/T9286-88 |
| Friction pull | 5B | 3M test tape |
| Pencil hardness | ≥H | GB/T6739-96 |
| RCA abrasion | >=150 times | Norman RCA wear-resistant tester (load 175g) |
| Resistance to alcohol | > 250 times | 99.7% ethanol, load 500g power |
| Cold-hot impacts | By | -30 ℃ * 2H～60 ℃ * 2H, totally three circulations |
| High-temp resisting high-humidity resisting | By | 60 ± 2 ℃, under the constant-temperature constant-humidity environment of humidity 95 ± 2%, store 48h |
| Salt-fog resistant test | By | 35 ℃ * 90%RH, the NaCl solution of PH=6.5-7.2% is placed 48h |
1, optimize UV spraying Production Flow Chart, enhance productivity.
2, adopt the difference of the products production qualification rate of UV ink printing: under the prerequisite of guaranteed performance, adopt the product that this technology is produced to realize and improve 10%～20% than the final qualification rate that adopts the product of sandwich printing.
3, realize product printing type face and have enough match volume effects.
Claims (2)
1. a using method for the UV ink that can directly print on ultraviolet curable coating, comprises the following steps:
(1) product adopts vinylformic acid or polyurethanes paint spay-coating, sprays 1～2 road coating, and per pass colored paint spraying thickness is 8～20 μ m, then by 50～70 ℃ of temperature, dries 10～30min;
(2) adopt acrylic Acid UV coating or other unsaturated polyester UV paint spay-coating; Together, its thickness is 12～25 μ m in spraying, after 45～65 ℃ of temperature are dried 7～20min, then is 500～1500mJ/cm at energy
2uV lamp in irradiate once;
(3) product undercarriage;
(4) use UV ink printing 2 roads that can directly print on ultraviolet curable coating;
At the temperature of (5) 50 ℃～70 ℃, dry 30min～60min;
(6) use the UV fluorescent tube of 300nm～420nm wavelength to irradiate, and energy is controlled to 500mJ/cm
2～1200mJ/cm
2in scope, printing type face is thoroughly solidified;
Wherein, described can be on ultraviolet curable coating the direct UV ink of printing, comprise the component of following proportion of composing:
Wherein, solidifying agent is the performed polymer of contain-NCO/-0H base;
Described resin is urethane resin;
Described adhesive agent are selected from a kind of or its combination below: γ mercaptopropyitrimethoxy silane, 3-thiocyano propyl-triethoxyl silane, 3-sulfydryl propyl group-Trimethoxy silane, vinyltriethoxysilane, methacryloyl propyl trimethoxy silicane, gamma-amino-propyl-triethoxysilicane, 3-sulfydryl propyl group-triethoxyl silane, 2-sulfydryl propyl group-Trimethoxy silane, 2-sulfydryl propyl group-triethoxyl silane, 3-nitro propyl group-Trimethoxy silane, 3-nitro propyl group-triethoxyl silane, 3-chloropropyl-Trimethoxy silane, 3-chloropropyl-triethoxyl silane, 2-chloropropyl-Trimethoxy silane, 2-chloropropyl-triethoxyl silane, g-(2, 3-epoxy the third oxygen) propyl trimethoxy silicane.
As claimed in claim 1 a kind of can be on ultraviolet curable coating the direct using method of the UV ink of printing, it is characterized in that: in described solidifying agent-NCO/-0H ratio is 12.0～16.0%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810072012.XA CN101724313B (en) | 2008-10-24 | 2008-10-24 | UV printing ink capable of being directly printed on UV coating and method for using printing ink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810072012.XA CN101724313B (en) | 2008-10-24 | 2008-10-24 | UV printing ink capable of being directly printed on UV coating and method for using printing ink |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101724313A CN101724313A (en) | 2010-06-09 |
| CN101724313B true CN101724313B (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810072012.XA Active CN101724313B (en) | 2008-10-24 | 2008-10-24 | UV printing ink capable of being directly printed on UV coating and method for using printing ink |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921511B (en) * | 2010-09-16 | 2012-04-25 | 珠海保税区天然宝杰数码科技材料有限公司 | Ink composition for ink-jet printing |
| CN103666103B (en) * | 2013-11-23 | 2016-05-04 | 铜陵方正塑业科技有限公司 | A kind of spraying type ultraviolet cured ink and preparation method thereof |
| CN105196722A (en) * | 2015-09-30 | 2015-12-30 | 江苏琛亚印材科技有限公司 | Method for improving adhesion between paper and printing ink |
| CN110157238A (en) * | 2019-05-15 | 2019-08-23 | 兴科电子(东莞)有限公司 | A kind of printing ink in UV sprayed product and its preparation method and application method |
| CN110387184A (en) * | 2019-07-11 | 2019-10-29 | 闽江学院 | The cross-linking modified moisture solidification acrylic resin paint of laccol and preparation method |
| CN111100503A (en) * | 2019-12-28 | 2020-05-05 | 东来涂料技术（上海）股份有限公司 | Solvent-free LED-UV curing inkjet ink and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1896292A (en) * | 2005-07-11 | 2007-01-17 | 佛山市顺德区汉达精密电子科技有限公司 | Treatment for plastic surface with color lustre and metal mass |
| CN1923911A (en) * | 2006-09-11 | 2007-03-07 | 中国化工建设总公司常州涂料化工研究院 | Dual curing coating |
| US20080145564A1 (en) * | 2006-12-19 | 2008-06-19 | Dow Global Technologies Inc. | Adhesion promotion additives and methods for improving coating compositions |
-
2008
- 2008-10-24 CN CN200810072012.XA patent/CN101724313B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1896292A (en) * | 2005-07-11 | 2007-01-17 | 佛山市顺德区汉达精密电子科技有限公司 | Treatment for plastic surface with color lustre and metal mass |
| CN1923911A (en) * | 2006-09-11 | 2007-03-07 | 中国化工建设总公司常州涂料化工研究院 | Dual curing coating |
| US20080145564A1 (en) * | 2006-12-19 | 2008-06-19 | Dow Global Technologies Inc. | Adhesion promotion additives and methods for improving coating compositions |
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| CN101724313A (en) | 2010-06-09 |
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