CN102673210B - Thermal transfer coating film for metal products, preparation method thereof and metal products - Google Patents

Thermal transfer coating film for metal products, preparation method thereof and metal products Download PDF

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Publication number
CN102673210B
CN102673210B CN201210162906.4A CN201210162906A CN102673210B CN 102673210 B CN102673210 B CN 102673210B CN 201210162906 A CN201210162906 A CN 201210162906A CN 102673210 B CN102673210 B CN 102673210B
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China
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coating
resin
film
temperature
transfer printing
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CN201210162906.4A
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Chinese (zh)
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CN102673210A (en
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付金国
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南京科晖印刷科技有限公司
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Abstract

The invention discloses a thermal transfer coating film for metal products, a preparation method thereof and metal products. The method for producing the thermal transfer coating film which is used for pressing and transferring, disclosed by the invention, comprises the following steps: implementing corona treatment on the surface of a BOPET film; coating; implementing gravure printing; and coating mixed resin with thermal-solidifying cross-linking reaction. The thermal transfer metal products with colorful patterns are obtained by using pressing equipment to transfer the coating pressing on the thermal transfer coating film to the surfaces of metals, later heating and then solidifying according to the suitable solidifying parameters. The products have the following advantages: the combination firmness of the surfaces of the metals is strong, the color consistency is good, the temperature resistance and the weather resistance are good, the patterns have performances of being durable and anti-scratching, color effects are non-perishable, the color is uniform, the graphic printing is fine, and the resolution ratio can reach 600 dpi.

Description

A kind of hot transfer printing coating film, its preparation method and gained metallic article thereof for metallic article
Technical field
The present invention relates to a kind of hot transfer printing coating film, its preparation method and gained metallic article thereof for metallic article.
Background technology
Along with the development of social life, stainless steel and more metal materials particularly have a wide range of applications in daily running stores field at industrial products.But its incrustation and processing, be limited by the development of process for treating surface always, particularly cannot realize high-resolution, multi-level, the requirement that possesses better surface property, weatherability and durability.
Summary of the invention
The object of this invention is to provide a kind of hot transfer printing coating film, its preparation method and gained metallic article thereof for metallic article.
For solving the problems of the technologies described above, technical scheme of the present invention is:
For a preparation method for the hot transfer printing coating film of metallic article, comprise the steps:
A, be that 0.018-0.025mmBOPET polyester film carries out two-sided sided corona treatment to thickness, make double-dial watch surface tension all be not less than 48dyn/cm;
B, at the coated on one side antitack agent of BOPET polyester film, hot setting;
C, by organic siliconresin with butanone and dilution with toluene, be uniformly coated on BOPET film another side form silicone resin coating, hot setting;
D, by after ultraviolet photo-curing resin dilution, be coated on silicone coatings by reticulate pattern, form protective layer through ultraviolet photo-curing;
E, mix the pigment of matching colors according to different colours with acrylic resin, be coated on and on protective layer, form ink layer in intaglio printing mode;
F, the adhesive that contains micro-capsule curing agent is coated on and on ink layer, forms adhesive layer, guaranteeing hot setting at the temperature that micro-capsule is not blown; Wherein, wherein the component of adhesive comprises: mylar 16-20 part, POLYBUTADIENE EPOXY RESIN 23-27 part, amino resins 13-18 part, micro-capsule curing agent 8-12 part and solvent 10-14 part, and described umber is mass fraction;
In above-mentioned steps B, temperature while solidifying is preferably 120 ℃, to remove the solvent in antitack agent, the coating weight of antitack agent is can effectively isolate after guaranteeing hot transfer film and being completed for printing between carrier film and adhesive layer because volume film is wound around anti-sticky being as the criterion producing, and above-mentioned BOPET film is carrier film.
In above-mentioned steps C, organosilicon resin with butanone and dilution with toluene after, the mass content of organosilicon resin is preferably 24-27%, the mass ratio of butanone and toluene is preferably (0.9-1.1): (0.9-1.1); The coating weight of organic siliconresin is under the prerequisite of surface uniform all standing, the least possible, is preferably every square metre of 4-6g; When organosilicon resin coating high-temp solidifies, temperature is preferably 170-190 ℃, and the time is preferably 4-8 second.
In above-mentioned steps D, after the dilution of ultraviolet photo-curing resin, measure for No. 3 to look into grace cup, under 28 ℃ of conditions, viscosity is 8 seconds; It is cured as, and coating is online solidifies, and preferably uses 80w/cm 2high-pressure sodium lamp as light source, in semi-hermetic environment, be filled with nitrogen; Coating speed is preferably 35m 2/ min, coating weight is as the criterion for guaranteeing surface uniform all standing, is preferably every square metre of 12-16g; Ultraviolet photo-curing resin, is made up of polyurethane acrylate resin monomer and performed polymer, contains active function groups, can be by sensitising agent initiated polymerization under UV-irradiation.
In above-mentioned steps E, the coating weight of ink is preferably: after 45 microns of above intaglio plate degree of depth engravings, ink film thickness is not less than 0.015m; The consumption of pigment depends on the factors such as the color weight of required pattern, and preferably, after acrylic resin hybrid pigment, pigment mass content is 8%-12%.
In above-mentioned steps F, in order to make gained adhesive function admirable, described solvent is preferably the mixture of one or more any proportionings in n-butyl acetate, propylene glycol monomethyl ether ethyl acetate or butanone; More preferably (3-5) of the mass ratio of n-butyl acetate, propylene glycol monomethyl ether ethyl acetate and butanone: (1-2): (4-6); Gained adhesive, in the time of coating, in order to guarantee better adhesive property, preferably adopts secondary line coating process, and first pass coating weight is preferred 10-16g/m 2, second time coating thickness is preferably 4-10g/m 2, the micro-capsule curing agent in adhesive is preferably at the more than 130 ℃ micro-capsule of temperature and blows, and can wrap up voluntarily below 130 ℃ in temperature; When adhesive layer is solidified temperature preferably≤120 ℃.Good in order to ensure adhesive adhesive property, described amino resins is preferably Lauxite, melamine resin and aniline-formaldehyde resin.
Aforesaid propylene acid resin is that vinyl chloride, vinyl acetate, acrylate three copolymerization form.
By a kind of hot transfer printing coating film for metallic article of said method gained.
By the metallic article of above-mentioned hot transfer printing coating film gained.
The preparation method of above-mentioned metallic article comprises the steps:
(1), the patterned layer heat on hot transfer printing coating film is transferred to metal surface, wherein, the hybrid resin adhesive layer of hot transfer printing coating film contacts with metal surface;
(2), BOPET film is thrown off and obtained blank, hot setting;
In above-mentioned steps (), be preferably 4-8kg/cm by heat transfer machine at pressure 2, temperature is 180-240 ℃, the coating pressing on lower hot transfer printing coating film of condition that speed is 3-8m/min is transferred in metal surface; Wherein, the patterned layer on hot transfer printing coating film comprises: protective layer, ink layer and gluing layer, do not comprise silicone resin coating, and after transfer printing, silicone resin coating can be left on BOPET film.
In above-mentioned steps (two), preferably, at temperature 150-180 ℃, blank is solidified to 10-30 minute.
By the prepared hot transfer printing metallic article of above-mentioned either method.
The metals such as indication metal finger stainless steel of the present invention, copper, iron, described goods refer to utensil or the decoration etc. in industry or daily life, used.
The hot transfer printing coating membrane structure of the present invention is stable, preparation is efficient, can be combined on metal and print out meticulous picture and text (can reach 600dpi) with the metal such as stainless steel, can realize again large-scale industrial and produce.By hot-pressing transfer printing, the coating pressing on hot transfer printing coating film is transferred in to metal surface, wherein, gluing layer is attached to metal surface in the mode of thermosetting, that a kind of high temperature irreversibility is solidified, after it is curing, firmness and intensity, far away higher than ink or the paint of normal temperature or low-temperature surface volatile dry, have irreplaceable advantage.
The decorations figure resolution 600dpi on the hot transfer printing metallic article of gained of the present invention surface, and printing levels are rich, bright-colored, color is full.After hot-pressing transfer printing solidifies, printing ink layer brute force is attached to metal surface, the wear-resisting scratch resistance of metal surface color diagram layer, and color is prolonged vivid, durable use.
The specific embodiment
In order to understand better the present invention, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention is not only confined to the following examples.
One, the production of hot transfer printing coating film
1, by Dupont25umBOPET film, two-sided sided corona treatment, to double-dial watch surface tension all more than 48 dyne.
2, in the coated on one side antitack agent of BOPET (the U.S. damp Chemical Manufacture of the U.S.), guarantee even coating, 120 ℃ of baking and curing 10 seconds.
3, by KP-1153 organosilicon resin (Shanghai Kai Ping resin Co., Ltd) take butanone, dilution with toluene (mass ratio of butanone and toluene was as 1: 1), be coated on another surface of BOPET and form even silicone resin coating, coating weight is every square metre of 4g, solidify by high temperature crystallization, design temperature curve in dry run, fully get rid of solvent, solidification temperature is 180 ℃, and the time is 6 seconds.
With the typical physical attribute of organic siliconresin after butanone, dilution with toluene in table 1.
Table 1
4, by ultraviolet photo-curing resin (LS8000; Jitian Chemical Co., Ltd. of Shenzhen) take butanone, dilution with toluene (the matter reason of butanone and toluene than as 1: 1) to No. 3, the 28 ℃ conditions of looking into grace cup under viscosity as 8 seconds, form evenly level and smooth protective layer with 175 order reticulate patterns coatings.It is cured as, and coating is online solidifies, and uses 80w/cm 2high-pressure sodium lamp as light source, in semi-hermetic environment, be filled with nitrogen as condition of cure, coating speed 35m 2/ min, coating weight is 14g/m 2.
5, by outer gravure ink acrylic resin (Japanese DIC) composite household weather-proof pigment (German ECKAAT), pigment content 8%-12%.To match colors according to different colours, in resin, call in auxiliary agent according to being applicable to the requirement of intaglio printing, fully dispersed with stirring, be ground to the fineness of 3-5um with three-roll grinder after dilution use.Be coated on conjunctiva layer and form ink layer in intaglio printing mode, actual measurement build is 0.017mm, and ink is fully dry, guarantees solvent eliminating.When intaglio printing, relevant device should have electrostatic equipment to guarantee the transfer of meticulous site.For reaching good printing effect, when operation, pay special attention to be coated with interlayer tension variation, can obtain good print distinctness to successively decrease gradually.
6, in following ratio preparation adhesive, mylar (NF5050, Ningbo south polyester Co., Ltd) 18 parts, 25 parts of POLYBUTADIENE EPOXY RESIN (D-17 type epoxy resin), amino resins (BX-100, Sen Bao wood glue Co., Ltd of Chongqing City) 15 parts, (it prepares reference literature to micro-capsule curing agent: Journal of Chemical Industry and Engineering, 09 phase in 2011, the preparation of latency 2MMZ-PS micro capsule curing agent and sign) 12 parts of 10 parts and solvents, solvent is by n-butyl acetate, propylene glycol monomethyl ether ethyl acetate, butanone composition, their mass ratio is 4: 1: 5, described umber is mass fraction.
Micro-capsule curing agent feature is: more than 130 ℃, micro-capsule is blown, 130 ℃ of following curing agent of temperature can wrap up voluntarily, micro-capsule is blown rear curing agent rapidly and resin generation cross-linking reaction, form good solid state at about 150 ℃, this solidification process is irreversible gradual disposal solidifying, and after solidifying, bond strength and adhesive force are outstanding.
The layoutprocedure of above-mentioned adhesive: fully stir after adding curing agent in hybrid resin, whipping process does not adopt high-speed stirred, to avoid high speed processes heating or cutting micro-capsule, produce in advance and solidify, be separated into master with middle stirring at low speed low speed (being not more than 300 revs/min).Be uniformly coated on and on ink layer, form hybrid resin adhesive layer with anilox roll.When coating, adopt secondary line coating process, first pass is guaranteed coating weight, every square metre of coating 13g, and second time coating is level and smooth bright and clean as target take applied assurance hybrid resin adhesive layer, does not have a square metre coating 7g, to guarantee the fineness of pattern after transfer printing.Being dried take eliminating solvent as standard after coating, guarantees to get rid of totally, and baking temperature is no more than 120 ℃.The coating weight of hybrid resin is every square metre of 20g of wet film.
7, hot transfer printing coating film production complete after bundling stand-by.
Two, transfer printing process and the method for stainless steel water glass
1, stainless steel is preheated to 100 ℃ of left and right, sends into pressing machine and realize pressing transfer printing, pressing process realizes hot transfer printing coating film and the two-way location of stainless steel by electric eye signal.Adopt high accuracy colour code probe and transmission device, positioning precision is in ± 0.3mm left and right.In assurance pressing process, stainless steel and hot transfer printing coating film are heated evenly, and the silica gel roller surface temperature of pressing machine is not less than 180 ℃ of just transferabilities continuously, with the speed of 4 meters per minute, and pressure 4-8kg/cm 2transfer printing.
Three, BOPET film is thrown off and obtained blank, hot setting;
BOPET film is thrown off and obtained blank.In fact after transfer printing, silicone resin coating is bonded on BOPET film, BOPET film is thrown off to be actually and thrown off BOPET film and silicone resin coating.Blank is carried out at 180 ℃ of temperature to 10 minutes solidify.Place at normal temperatures after 48 hours, according to hundred lattice tests, salt spray test, high low temperature test, senile experiment and sweat proof liquid and resistance to dish-washing machine and detergent-resistant requirement, all by experiment, meet properties requirement.Gained normal temperature is left standstill to 3 years, visual, its pattern and original pattern (pattern when ability output) indifference.
Hot transfer printing coating film also can combined vacuum coating and radium-shine embossing produce various noble metal effects and local laser effect, the various illusion-colours of reproducing and texture.
The present embodiment gained stainless steel water tumbler, ink layer is combined firmness with stainless steel strong, and colour consistency is good, and heatproof is weather-proof, the prolonged nondiscolouring of color effects, color is even, picture and text printed with fine, resolution ratio reaches the feature of 600dpi.

Claims (13)

1. for a preparation method for the hot transfer printing coating film of metallic article, it is characterized in that: comprise the steps:
A, be that 0.018-0.025mmBOPET film carries out two-sided sided corona treatment to thickness, make double-dial watch surface tension all be not less than 48dyn/cm;
B, at the coated on one side antitack agent of BOPET film, hot setting;
C, by organic siliconresin with butanone and dilution with toluene, be uniformly coated on BOPET film another side form silicone resin coating, hot setting;
D, by after ultraviolet photo-curing resin dilution, be coated on silicone resin coating by reticulate pattern, form protective layer through ultraviolet photo-curing;
E, mix the pigment of matching colors according to different colours with acrylic resin, be coated on and on protective layer, form ink layer in intaglio printing mode;
F, the adhesive that contains micro-capsule curing agent is coated on and on ink layer, forms adhesive layer, guaranteeing hot setting at the temperature that micro-capsule is not blown; Wherein, wherein the component of adhesive comprises: mylar 16-20 part, POLYBUTADIENE EPOXY RESIN 23-27 part, amino resins 13-18 part, micro-capsule curing agent 8-12 part and solvent 10-14 part, and described umber is mass fraction;
In step B, the temperature while solidifying is 120 ℃;
In step C, the coating weight of organic siliconresin is every square metre of 4-6g;
In step D, ultraviolet photo-curing uses 80w/cm 2high-pressure sodium lamp as light source, in semi-hermetic environment, be filled with nitrogen;
In step e, the coating weight of ink is: after 45 microns of above intaglio plate degree of depth engravings, ink film thickness is not less than 0.015mm;
In step F, hybrid resin, in the time of coating, adopts secondary line coating process, and first pass coating weight is 10-16g/m 2, second time coating thickness is 4-10g/m 2;
In step C, when silicone resin coating hot setting, temperature is 170-190 ℃, time 4-8 second;
In step F, temperature≤120 ℃ when hybrid resin adhesive layer is solidified.
2. preparation method as claimed in claim 1, it is characterized in that: in step C, organic siliconresin with butanone and dilution with toluene after, the mass content of organic siliconresin is 24-27%, the mass ratio of butanone and toluene is (0.9-1.1): (0.9-1.1).
3. preparation method as claimed in claim 1, is characterized in that: in step D, after the dilution of ultraviolet photo-curing resin, measure for No. 3 to look into grace cup, under 28 ℃ of conditions, viscosity is 8 seconds.
4. the preparation method as described in claims 1 to 3 any one, it is characterized in that: in step D, ultraviolet photo-curing resin, is made up of polyurethane acrylate resin monomer and performed polymer, contain active function groups, can be by sensitising agent initiated polymerization under UV-irradiation.
5. the preparation method as described in claims 1 to 3 any one, is characterized in that: in step e, after acrylic resin hybrid pigment, pigment mass content is 8%-12%.
6. the preparation method as described in claims 1 to 3 any one, is characterized in that: in step F, described solvent is the mixture of one or more any proportionings in n-butyl acetate, propylene glycol monomethyl ether ethyl acetate or butanone.
7. preparation method as claimed in claim 6, is characterized in that: in step F, the mass ratio of n-butyl acetate, propylene glycol monomethyl ether ethyl acetate and butanone is (3-5): (1-2): (4-6).
8. the preparation method as described in claims 1 to 3 any one, is characterized in that: in step F, micro-capsule curing agent is blown at the more than 130 ℃ micro-capsule of temperature, can wrap up voluntarily below 130 ℃ in temperature.
9. the preparation method as described in claims 1 to 3 any one, is characterized in that: acrylic resin is that vinyl chloride, vinyl acetate, acrylate three copolymerization form.
10. by the prepared a kind of hot transfer printing coating film for metallic article of preparation method described in claim 1 to 9 any one.
11. by the prepared a kind of prepared metallic article of hot transfer printing coating film for metallic article of preparation method described in claim 1 to 9 any one.
12. metallic articles as claimed in claim 11, is characterized in that: comprise the steps:
(1), the patterned layer heat on hot transfer printing coating film is transferred to metal surface, wherein, the hybrid resin adhesive layer of hot transfer printing coating film contacts with metal surface;
(2), BOPET film is thrown off and obtained blank, at temperature 150-180 ℃, to the curing 10-30 minute of blank.
13. preparation methods as claimed in claim 12, is characterized in that: in step (), be 4-8kg/cm by heat transfer machine at pressure 2, temperature is 180-240 ℃, the coating pressing on lower hot transfer printing coating film of condition that speed is 3-8m/min is transferred in metal surface.
CN201210162906.4A 2012-05-23 2012-05-23 Thermal transfer coating film for metal products, preparation method thereof and metal products CN102673210B (en)

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CN102941705B (en) * 2012-09-29 2015-02-04 奥瑞金包装股份有限公司 Color printing lamination metal plate and preparation method thereof
CN103054284B (en) * 2012-12-31 2014-10-29 湖北联合天诚防伪技术股份有限公司 Metallic coin stamped with holographic anti-counterfeiting pattern and manufacturing method thereof
CN103419538B (en) * 2013-07-23 2016-12-28 霍浩麟 A kind of PET polyester transfer film is transferred to the production technology of sheet metal
CN104802541B (en) * 2015-04-21 2017-12-22 武汉华工图像技术开发有限公司 A kind of heat transfer colour ribbon for metal material
CN108284677B (en) * 2018-01-22 2020-08-14 河南卓立膜材料股份有限公司 Thermosensitive recording composite material and production process thereof
CN108165089A (en) * 2018-01-24 2018-06-15 佛山市三水金恒金属制品有限公司 A kind of metal high temperature heat-resistant transfer ink and preparation method thereof
CN109823036A (en) * 2019-03-19 2019-05-31 沈志峰 A kind of buckle process units that gluing twice can be carried out to transfer film

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JP2003205687A (en) * 2002-01-16 2003-07-22 Nitto Denko Corp Printing sheet and print sheet
CN200995575Y (en) * 2006-12-18 2007-12-26 汕头市东田转印有限公司 Transfer film with decorative-layer protection
CN202062829U (en) * 2011-01-30 2011-12-07 南京科晖印刷科技有限公司 Heat transfer printing colored crystal glass

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Effective date of registration: 20190807

Address after: 211178 Tiancheng Road, Binjiang Economic Development Zone, Jiangning District, Nanjing City, Jiangsu Province

Patentee after: Nanjing Ke Hui Precision Technology Co., Ltd.

Address before: 211161 No. 28 Tiancheng Road, Binjiang Economic Development Zone, Nanjing City, Jiangsu Province

Patentee before: Nanjing Tec-hi Printing Technology Co., Ltd.

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Denomination of invention: Thermal transfer coating film for metal products, preparation method thereof and metal products

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