CN101348047B - Transfer printing method for transferring print film containing ultraviolet curing type adhesive - Google Patents
Transfer printing method for transferring print film containing ultraviolet curing type adhesive Download PDFInfo
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- CN101348047B CN101348047B CN2008100274472A CN200810027447A CN101348047B CN 101348047 B CN101348047 B CN 101348047B CN 2008100274472 A CN2008100274472 A CN 2008100274472A CN 200810027447 A CN200810027447 A CN 200810027447A CN 101348047 B CN101348047 B CN 101348047B
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Abstract
The invention provides a transfer printing method of a transfer printing film containing ultraviolet curable adhesive, which comprises following steps: using a cement layer of the transfer printing film and adopting heating and pressurizing method to paste the transfer printing film to the surface of a printing stock; striping a carrier film to transfer a graph-text decoration layer to the surface of the printing stock; curing the surface of the printing stock by ultraviolet irradiation; acquiring the product which is produced by firmly combining the graph-text decoration layer and the surface of the printing stock; wherein, the essential component of the cement layer of the transfer printing film is ultraviolet curable resin. The transfer printing method of the invention can improve the initial adhesion of the cement layer of the ultraviolet curable adhesive transfer printing film and facilitate quick paste by using the existing transfer printing press; furthermore, the transfer printing pattern is given the characteristics of irreversibility and firmer combination between the transfer printing pattern and the surface of the printing stock by ultraviolet curing. Therefore, the method has the advantages of simple production operation technique and quick transfer printing speed, and is especially suitable for large-scale industrial production.
Description
Technical field
The present invention relates to a kind of printing transferring method, relate in particular to a kind of printing transferring method of transferring print film containing ultraviolet curing type adhesive, more specifically relate to a kind of employing hot-press method, earlier printed patterns is pasted on the stock surface, passes through the printing transferring method of ultraviolet light polymerization again.
Background technology
Traditional heat transfer printing film generally comprises carrier film, pattern decoration layer and following layer, during transfer printing, by the effect of heating power and pressure, utilizes the cohesive force of following layer, makes the pattern decoration pull-up transfer to the stock surface from carrier film.PUR is as the solid of heat transfer printing film, practice through many decades, approved widely and used, this is because PUR is a kind of solid matter under normal conditions, and under the effect of heating power, has good viscosity, on the other hand, solvent type PUR, can be the same with printing ink, adopt the method for printing coating and obtain thin and uniform coating, this coating can obtain efficient and adhesive effect fast by heat-transferring method, as the thermoprint of electrochemical aluminium gold paper tinsel, and the hot transfer printing of the no mechanical goods of different shape object and organic articles surface ink picture and text.But also there is certain limitation in PUR as the solid of heat transfer printing film, this be because PUR be heated have can be repeatedly characteristic, for some special goods, need resistant to elevated temperatures electrical apparatus product or need resistant to elevated temperatures construction material as some, use at normal temperatures, its decoration picture and text that obtain by hot transfer printing combine intact with the surface, but use under the thermal environment being subjected to, and can occur because of the repeatability of PUR returning and glue the phenomenon that influences adhesion but decorate picture and text.In addition, PUR needs a large amount of organic solvents of volatilization in solidification process, easily environment is polluted, and is unfavorable for environmental protection.
Ultraviolet solidified adhesive is because the irreversibility after solidifying, fastness and the acid-fast alkali-proof of pasting the back pattern reach the popularity that paste is suitable for and obtain general approval, in addition, ultraviolet solidified adhesive is not owing to contain organic solvent, use does not pollute environment, especially is fit to environmental protection requirement.Ultraviolet solidified adhesive has begun to be applied in the thermoprint of metal forming at present, its way is, earlier ultraviolet solidified adhesive is applied to the surface of stock, utilizes ultraviolet light that stock is shone, again with the metal forming thermoprint to the stock that is coated with adhesive.Many, the complex process of this method step, thermoprint efficient is low, is not suitable for the industrial production of serialization.Because ultraviolet solidified adhesive has the adhesion characteristics of pressure sensitive adhesive before uncured, so someone proposes ultraviolet solidified adhesive is applied to the following layer of heat transfer printing film, patent as patent No. ZL 00803449.4 has proposed " utilizing the preparation of ultraviolet curing pigment and adhesive technology to move colored decalcomania ", utilize ultraviolet solidified adhesive to use exactly as the solid of decalcomania film, but because ultraviolet solidified adhesive tack at normal temperatures is relatively poor, when using as solid, generally be earlier transferring print film to be pasted the stock surface, again UV-irradiation is carried out on the stock surface, at last carrier film is peeled off.Separately carry out because this printing transferring method will be pasted the stripping process of operation and carrier film, not only increase process time, influence transfer speed, and need transform original transfer apparatus.In addition, before UV-irradiation, the uncured adhesive stock of especially easily making dirty does not need the part of transfer printing, reduces the qualification rate of transfer printing finished product greatly.
Summary of the invention
For solving the problem of above existence, the present invention propose a kind of transferring print film containing ultraviolet curing type adhesive printing transferring method, this method can improve the tack of the hot following layer of transferring print film, make it not only be fit to existingly paste the requirement of producing transfer printing process fast, and pattern transferring is through having irreversible and pattern transferring and stock are surperficial combines more firm characteristics after the ultraviolet curing.
For realizing above purpose, the printing transferring method of transferring print film containing ultraviolet curing type adhesive of the present invention, characteristics are: utilize the following layer in the transferring print film, earlier transfer film is pasted the surface of stock by the method for heating pressurization, simultaneously carrier film is peeled off, make the pattern decoration layer in the transfer film transfer to the stock surface, again stock is carried out UV-irradiation, obtain the goods that the pattern decoration layer combines with the stock surface, wherein the transferring print film following layer comprises ultraviolet curable resin, and ultraviolet curable resin comprises performed polymer, monomer and light trigger; Following layer comprises the liquid performed polymer of 8-25% weight, the solid-state performed polymer of 25-50% weight, the monomer of 25-42% weight and the light trigger of 10-20% weight; Or following layer comprises the thermoplastic resin of 4-15% weight, the performed polymer of 50-80% weight, the monomer of 10-30% weight and the light trigger of 8-20% weight.
The heat that increases following layer by the amount that increases liquid performed polymer and monomer is active, coating needs just to be solid-state under constant temperature and humidity, in case run into moist environment, following layer is prone to anti-gluing and causes the rolling transfer film to launch, in order to be easy to preserve, generally need increase one deck antiadhesion barrier or paper at following layer; In order to save resource, best bet is to add thermoplastic resin in following layer, makes following layer be solid-state under normal temperature, wet environment; The content of thermoplastic resin in following layer is bigger to the performance impact of following layer, if content is too low, the heat that then can influence following layer is active, and if content is too high, then can influence the speed of following layer ultraviolet curing.
The method of above-mentioned heating pressurization is to adopt the hot pressing of the existing thermoprinting machine realization of perming, and the temperature that hot pressing is permed is controlled at 30-220 ℃, pressure and is controlled at 0.3-0.8Pa, and the thermoprint time is 0.5-30 second; Ultraviolet light polymerization is to adopt existing photo solidification machine to realize that its wavelength is 250-420 μ m, and luminous intensity is 80-120mw/cm
2Ultraviolet ray, irradiation time is 1-40 second.
Above-mentioned performed polymer can directly adopt the acrylic ester type performed polymer with thermal plastic property.
In order to make thermoplastic resin and ultraviolet curable resin have good intermiscibility, can obtain simultaneously thin and uniform following layer, one or more in acrylic resin, mylar, vinyl chloride-vinyl acetate resin, aldehyde ketone resin or the polyolefin resin of the preferred softening point of above-mentioned thermoplastic resin between 30-200 ℃.
Two or more in aforesaid propylene acid esters type performed polymer preferred polyester acrylic resin, Epocryl or the polyurethane acrylic resin.
In order to accelerate the curing rate of performed polymer, strengthen the adhesive force of performed polymer, above-mentioned monomer preferred acrylate class activated monomer, the esters of acrylic acid activated monomer is good with bifunctional acrylate's class activated monomer and trifunctional group acrylate's class activated monomer again, difunctional and trifunctional group acrylate's class activated monomer have higher crosslink density and fabulous adhesive force, and hardness and scratch resistance are good after solidifying.
Expose the easy oxygen inhibition phenomenon that takes place in the air for fear of following layer, make the print film that is coated with the ultraviolet hardening solid have the long holding time, above-mentioned light trigger also can suitably add the bimolecular initiators of amino coinitiator based on the unimolecular initiators of alpha-hydroxyalkyl benzophenone class.
Above-mentioned following layer also comprises the auxiliary agent of 0.5-5% weight.
Printing transferring method of the present invention, overcome the prejudice of people existing " ultraviolet solidified adhesive only just begins to solidify " under UV-irradiation, utilize that performed polymer and monomer can take place tentatively crosslinked in the ultraviolet solidified adhesive under hot pressing condition, characteristics with better tack, employing contains the processing technology of ultraviolet hardening adhesive transferring print film, can not only reach quick pasting effect, and the stripping process of pasting operation and carrier film is carried out synchronously, improve the speed of transfer printing greatly, and the pattern transferring that the characteristic of ultraviolet solidified adhesive is given on the stock has acidproof, alkaline-resisting and irreversible and pattern transferring combines more firm characteristics with the stock surface, and being used for needs resistant to elevated temperatures electrical apparatus product or need the pattern of high temperature resistant building material surface to paste particularly suitable some.In addition, in following layer, add the small amount of thermal plastic resin, can not only better improve the tack of ultraviolet curable resin, and by selecting thermoplastic resin and the suitable ratio of ultraviolet curable resin, can make following layer be solid-state at normal temperatures, not only save the use of separate paper in the transferring print film packing storing process, and can avoid uncured adhesive that stock is not needed being infected with of transfer section, improved the qualification rate of transfer printing finished product.Printing transferring method of the present invention makes full use of existing hot transfer printing production equipment, only needs to increase on existing hot transfer printing production line the device of UV-irradiation, can realize whole process, and production operation technology is simple, and transfer speed is fast, adapts to large-scale industrial production especially.
Description of drawings
Fig. 1 is the structural representation of a kind of heat transfer printing film of the present invention.
Fig. 2 utilizes the process chart of Fig. 1 print film to the transfer printing of nonabsorbable hard stock.
Fig. 3 is the structural representation of second kind of heat transfer printing film of the present invention.
Fig. 4 utilizes the process chart of Fig. 2 print film to the soft stock transfer printing of absorbability.
Fig. 5 is the structural representation of the third heat transfer printing film of the present invention.
Fig. 6 utilizes the process chart of Fig. 5 print film to the soft stock transfer printing of absorbability.
The specific embodiment
Describe the present invention below in conjunction with embodiment, described embodiment is intended to explain the present invention, and can not be interpreted as restriction the present invention.
The performance of performed polymer is determining the flexibility of coating and the printing ink adhesive force to stock, and the adhesion of printing ink and stock depends on the ability of further photopolymerization of performed polymer or photo-crosslinking, in addition, the material of stock also has certain influence to the selection of performed polymer, for nonabsorbable hard stock, as plastics, glass, metallic article etc., main polyester acrylic resin and the Epocryl of adopting, this is because the polyester acrylic resin is better to the adhesive force of non-absorbent material, and its relative molecular weight is lower, viscosity is also lower, it is few that the solid that is deployed into returns sticking possibility, and Epocryl curing back hardness is big, can improve the bond strength of pattern after solidifying and the resistance to scraping of pattern, chemicals-resistant corrosivity, its curing rate also just are to slow a kind of the replenishing of the curing rate of polyester acrylate resin soon.And for the soft stock of absorbability, as the PVC flexible plastic products, the adding of polyurethane acrylate resin is also quite important, this is because the compliance that polyurethane acrylic resin has adhesive force well to become reconciled, good effect is played in the adhesion of soft materials, and a spot of unsaturated polyester type resin also can be used.
Embodiment 1 (being transferred as example) with nonabsorbable hard stock
1, the preparation of print film
Fig. 1 is first kind of print film of the present invention, and the top layer of this print film is a base film 1, and the second layer is that 2, the three layers of acrylate resin layers are that printing ink layer is an adhesion agent layer 4 for 3, the four layers.Its manufacture craft is: adopt intaglio press or coating machine; be coated with seal one acrylate resin layer on a base film surface; as protective layer; on acrylate resin layer, adopt the pre-designed decoration picture and text of ink printing; adopt the intaglio process machine directly to stamp solid or apply solid on coating machine on the picture and text layer, packed products is cut in rolling.
Solid adopts following prescription:
Epoxy acrylate type resin 34%
Polyester acrylate type resin 14.4%
Polyurethane-acrylate type resin 5.2%
Bifunctional acrylate's class reactive diluent 7%
Trifunctional group acrylate's class reactive diluent 9%
Alpha-hydroxyalkyl benzophenone photoinitiator 7%
Acrylate 7%
Ethyl acetate solvent 15%
Anti-sticking auxiliary agent 0.6%
Dispersing aid 0.8%
2, transfer printing
(1) cleaning is carried out on nonabsorbable hard stock surface;
(2) with reference to Fig. 2, the print film of rolling is put on the unwinding device of hot stamp machine, allow print film through passing the heat-resisting round silica gel head of thermoprint behind the power transmission shaft and being positioned in the middle of the stock on the work top of silica gel head below, again through power transmission shaft, around to Scroll; Adjust the impression position, allowing perms presses down and reaches tight sticking stock surface, and the temperature of perming is controlled at 80-150 ℃, pressure and is controlled at 0.3-0.8Pa, and the thermoprint time is 0.5-2 second, obtains the effect of hot melt adhesion;
(3) stock that will be pasted with the pattern decoration layer is by UV curing apparatus, and adopting wavelength is that 300-350 μ m, intensity are 80-120mw/cm
2Ultraviolet light, irradiation time is 3-15 second, obtains the permanent curing of solid.
Embodiment 2 (being transferred as example) with the soft stock of absorbability
1, the preparation of print film
Fig. 3 is second kind of print film of the present invention, and the top layer of this print film is a base film 1, and the second layer is that 2, the three layers of acrylate resin layers are that printing ink layer is a vacuum aluminium coated layer 5 for 3, the four layers, and layer 5 is an adhesion agent layer 4.Its manufacture craft is: adopt intaglio press or coating machine; be coated with seal one acrylate resin layer on a base film surface; as protective layer; the pre-designed decoration picture and text of printing on acrylate resin layer; adopt vacuum aluminum-coated method; plate layer of metal aluminium on decoration picture and text layer, adopting the intaglio process machine directly to stamp solid or apply solid on coating machine on the aluminium lamination again, packed products is cut in rolling.
Solid adopts following prescription:
Polyester acrylate type resin 18%
Polyurethane-acrylate type resin 38%
Unsaturated polyester type resin 3%
Bifunctional acrylate's class reactive diluent 7%
Trifunctional group acrylate's class reactive diluent 5.1%
Alpha-hydroxyalkyl benzophenone photoinitiator 10%
Polyolefin resin resin 6%
Ethyl acetate solvent 12%
Anti-sticking auxiliary agent 0.5%
Dispersing aid 0.4%
2, transfer printing
(1) with reference to Fig. 4, the print film and the soft stock of absorbability of rolling are put on the unwinding device up and down of hot stamp machine, allow print film and soft stock pass simultaneously between heat-resisting round silica gel head of thermoprint and the supporting rollern, adjust the impression position, allowing perms presses down and reaches tight sticking stock surface, the temperature of perming is controlled at 60-120 ℃, pressure and is controlled at 0.3-0.8Pa, the thermoprint time is 0.5-1 second, obtain the effect of hot melt adhesion, the print film that the pattern decoration layer has been transferred is reclaimed by a wrap-up;
(2) the soft stock that will be pasted with the pattern decoration layer by behind the UV curing apparatus around to Scroll, adopting wavelength is that 250-420 μ m, intensity are 80-120mw/cm
2Ultraviolet light, irradiation time is 3-18 second, obtains the permanent curing of solid.
1, the preparation of print film (being transferred as example) with the soft stock of absorbability
Fig. 5 is the third print film of the present invention, and the top layer of this print film is a base film 1, and the second layer is that 2, the three layers of acrylate resin layers are that printing ink layer is a vacuum aluminium coated layer 5 for 3, the four layers, and layer 5 is an adhesion agent layer 4, and layer 6 is an adherent layer 6.Its manufacture craft is: adopt intaglio press or coating machine; be coated with seal one acrylate resin layer on a base film surface; as protective layer; the pre-designed decoration picture and text of printing on acrylate resin layer; adopt vacuum aluminum-coated method, on decoration picture and text layer, plate layer of metal aluminium, adopting the intaglio process machine directly to stamp solid or on coating machine, apply solid on the aluminium lamination again; go up the adherent layer rolling at last again, cut packed products.
Solid adopts following prescription:
Solid polyester acrylate type resin 28%
Solid polyurethane-acrylate type resin 18%
Liquid polyurethane-acrylate type resin 6%
Liquid unsaturated polyester type resin 3%
Bifunctional acrylate's class reactive diluent 15%
Trifunctional group acrylate's class reactive diluent 15%
Alpha-hydroxyalkyl benzophenone photoinitiator 11%
The amino coinitiator 3% of bimolecular
Anti-sticking auxiliary agent 0.6%
Dispersing aid 0.4%
2, transfer printing
(1) with reference to Fig. 6, the print film and the soft stock of absorbability of rolling are put on the unwinding device up and down of hot stamp machine, allow print film and soft stock pass simultaneously between heat-resisting round silica gel head of thermoprint and the supporting rollern, adherent layer drawn back be placed on another rolling and will put, adjust the impression position, allowing perms presses down and reaches tight sticking stock surface, the temperature of perming is controlled at 150-220 ℃, pressure and is controlled at 0.3-0.8Pa, the thermoprint time is 0.5-2 second, obtain the effect of hot melt adhesion, the print film that the pattern decoration layer has been transferred is reclaimed by a wrap-up;
(3) stock that will be pasted with the pattern decoration layer is by UV curing apparatus, and adopting wavelength is that 300-350 μ m, intensity are 80-120mw/cm
2Ultraviolet light, irradiation time is 3-15 second, obtains the permanent curing of solid.
Claims (8)
1. printing transferring method that contains ultraviolet hardening adhesive transferring print film, it is characterized in that: described printing transferring method is the following layer that utilizes in the transferring print film, earlier transferring print film is pasted the surface of stock by the method for heating pressurization, simultaneously the carrier film in the transferring print film is peeled off, make the pattern decoration layer in the transferring print film transfer to the stock surface, again stock being carried out UV-irradiation solidifies, obtain the goods that the pattern decoration layer combines with the stock surface, wherein following layer comprises the liquid performed polymer of 8-25% weight, the solid-state performed polymer of 25-50% weight, the light trigger of the monomer of 25-42% weight and 10-20% weight; Or following layer comprises the thermoplastic resin of 4-15% weight, the performed polymer of 50-80% weight, the monomer of 10-30% weight and the light trigger of 8-20% weight, and each component sum is 100%.
2. according to the described printing transferring method that contains ultraviolet hardening adhesive transferring print film of claim 1, it is characterized in that: the method for described heating pressurization is to adopt the hot pressing of the thermoprinting machine realization of perming, the temperature that hot pressing is permed is that 30-220 ℃, pressure are 0.3-0.8Pa, thermoprint time 0.5-30 second; Ultraviolet light polymerization is to adopt photo solidification machine to realize that its wavelength is 250-420 μ m, and luminous intensity is 80-120mw/cm
2Ultraviolet ray, irradiation time is 1-40 second.
3. according to claim 1 or the 2 described printing transferring methods that contain ultraviolet hardening adhesive transferring print film, it is characterized in that: described performed polymer is the acrylic ester type performed polymer with thermal plastic property.
4. according to the described printing transferring method that contains ultraviolet hardening adhesive transferring print film of claim 3, it is characterized in that: described thermoplastic resin is one or more in acrylic resin, mylar, vinyl chloride-vinyl acetate resin, aldehyde ketone resin, polyolefin resin or the acrylate type resin of softening point between 30-200 ℃.
5. according to the described printing transferring method that contains ultraviolet hardening adhesive transferring print film of claim 3, it is characterized in that: described acrylic ester type performed polymer is two or more in polyester acrylic resin, Epocryl or the polyurethane acrylic resin.
6. according to the described printing transferring method that contains ultraviolet hardening adhesive transferring print film of claim 5, it is characterized in that: described monomer is one or both in bifunctional acrylate's class monomer, the trifunctional group acrylate's class monomer.
7. according to the described printing transferring method that contains ultraviolet hardening adhesive transferring print film of claim 5, it is characterized in that: described light trigger is made of single bimolecular initiators of alpha-hydroxyalkyl benzophenone class.
8. according to the described printing transferring method that contains ultraviolet hardening adhesive transferring print film of claim 5, it is characterized in that: described following layer also comprises the auxiliary agent of 0.5-5% weight.
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| CN2008100274472A CN101348047B (en) | 2008-04-10 | 2008-04-10 | Transfer printing method for transferring print film containing ultraviolet curing type adhesive |
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| CN2008100274472A CN101348047B (en) | 2008-04-10 | 2008-04-10 | Transfer printing method for transferring print film containing ultraviolet curing type adhesive |
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| CN101348047B true CN101348047B (en) | 2010-12-22 |
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| CN102199402A (en) * | 2011-03-18 | 2011-09-28 | 武汉大学 | Ultraviolet curing adhesive for transfer printing film |
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| WO2018098801A1 (en) * | 2016-12-02 | 2018-06-07 | 江南大学 | Method for patterning thermoplastic polymer by using room-temperature transfer imprinting technology |
| CN108148533B (en) * | 2018-01-23 | 2021-01-29 | 佛山市加恩新材料有限公司 | Hot melt adhesive for off-film transfer printing technology and preparation method thereof |
| CN113211949B (en) * | 2020-02-06 | 2022-08-26 | 京东方科技集团股份有限公司 | Pattern transfer apparatus and method |
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| CN113829745A (en) * | 2021-10-15 | 2021-12-24 | 北京光谱印宝科技有限责任公司 | Transfer printing method and transfer printing system for holographic image |
| CN114030304B (en) * | 2021-10-29 | 2023-03-21 | 绍兴虎彩激光材料科技有限公司 | Micro-nano structure transfer printing method based on reusable ultraviolet curing material |
| CN115367206B (en) * | 2022-09-09 | 2023-05-26 | 广东瑞讯电子科技有限公司 | Automatic film pasting device of optical switch |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 515022 Guangdong city in Shantou Province, the new town Longhu District Jin Xin Lu Jin Yuan Industrial Zone Patentee after: Guangdong Dongtian transfer new material Co. Ltd. Address before: 515800 Guangdong city in Shantou Province, the new town Longhu District Jin Xin Lu Jin Yuan Industrial Zone Patentee before: Dongtian Transfer Materials Co., Ltd. |