A kind of anti-counterfeiting transfer printing technology
Technical field
The present invention relates to a kind of printing technology, be specifically related to a kind of anti-counterfeiting transfer printing technology.
Background technology
In traditional printing technology, printing ink directly in self-control stock dry tack free, owing to paper formation degree and the absorbefacient performance of paper surface, is unfavorable for the levelling of printing ink.If paper is strong excessively to the absorbability of printing ink, can arrive printing defectives such as causing trace efflorescence, glossiness are low, print through, China ink layer density reduces and form and aspect change.Therefore, for the printed matter that color and luster degree, tone reproduction are had relatively high expectations, a kind of method is to adopt plastic sheeting composite papers such as OPP or PET to print.The drawback of this technology is: plastic sheeting belongs to the nondegradation material, can pollute environment, is unfavorable for environmental protection.Another kind of mode is to adopt UV (ultraviolet light) irradiation to make the printing ink instantaneous solidification, does not have the ink penetration phenomenon, can print off the very high printing of glossiness on plain paper, but can produce ozone during ink setting, environmental protection is worked the mischief, and production cost is higher.For the not enough existing typography that overcomes above-mentioned traditional handicraft has been taked the trans-printing mode.
Chinese patent CN1330026A discloses the production technology of the colored pail pack of a kind of hot transfer printing, utilizes the OPP film to be base material, and it is carrier that heat shifts sublimation inks, according to following technological process production:
1, plate-making is carved required printed patterns on the copper roller with computer;
2, molding is got the OPP film and is made counterdie, coating one deck mould release on the OPP counterdie, with the transfer printing sublimation inks by intaglio press after finishing chromaticity printing on the OPP film mould release, be coated with the reasonable notacoria of last layer transfer bat printing thing affinity, be commonly called as solid, make colour film;
3, hot transfer printing is bonded at the colour film that the produces radian according to pail pack on the pail pack, by hot transfer pressurization, heating, film hot-pressing is compounded in the pail pack outer surface, and hot pressing transfer printing temperature is controlled at 200~300 ℃;
4, take off counterdie, peel off the OPP counterdie wait a moment (about 30 seconds) from pail pack, and whole heat of pattern are transferred on the pail pack outer surface on it, peel off the back side cleaning of OPP film, but reuse.
Though it is the heat transfer printing mode that this technology has adopted a kind of indirect printing mode, the influence of singlehanded production equipment, material, environmental protection, efficient and cost has the big limitation in river:
1, be confined to the use of heat sublimation printing ink, the saturation degree of printing color is very low;
2, variation of temperature, to figure layer to peel off influential effect bigger;
3, use special-purpose heat transfer machine to finish the transfer printing of look film, the heat transfer machine speed of production is slow, and efficient is low and cost is higher.
4, producing is to need 200~300 ℃ of high temperature, expends energy height, and operating personnel are had certain danger.
And Chinese patent CN1724702A discloses a kind of manufacture method of locating aluminium-plated material, has wherein also described behind coating peel ply on the basement membrane, at least once is coated with before the press mold or prints common picture and text in coating, is carrying out subsequent production technology.But, still have the following disadvantages:
1, the common mould release material of divert film use, sprayed-on Al layer only contacts with mould release, can effectively peel off sprayed-on Al layer, but for also having one deck thicker ink lay relatively between the two, then can not satisfy effectively peeling off of printing-ink.
2, the common water-based transfer glue used of divert film can be peeled away sprayed-on Al layer from the mould release material, but because of also having thicker ink lay, side can not satisfy the effective transfer from the peel ply simultaneously of printing ink layer and sprayed-on Al layer on the sprayed-on Al layer.
Summary of the invention
In employed basement membrane can recycle, free from environmental pollution.
For achieving the above object, technical scheme of the present invention is to adopt a kind of anti-counterfeiting transfer printing technology, and this typography comprises following processing step:
S1: plate-making process, make the laser plate that has graph text information;
S2: painting process, utilize coating apparatus to be coated with one deck mould release or paint for imaging evenly, densely on the PET basement membrane;
S3: the operation of aluminizing, the surface is coated with the PET basement membrane of mould release or paint for imaging and aluminium device in vacuum evaporation plating machine, with vavuum pump vacuum evaporation plating machine is carried out vacuum pumping, described aluminium is heated to 1200 ℃~1400 ℃ then, make the gaseous aluminum particulate at the described mould release that moves or the surface deposition of paint for imaging, form the continuous and bright metal aluminium lamination of one deck through supercooling again;
S4: mold pressing procedure, utilize the thermal change performance of laser plate immersion coating, the graph text information on the laser plate is stamped on the described aluminium lamination, make the holography shifting film that is used to shift;
S5: compound working procedure, described holography shifting film and base stock are bonded together, earlier with the uniform applying glue of paper, again holography shifting film is attached on the paper after the applying glue, roll applying by pressure roller then, pass through oven for drying again;
S6: stripping process, the PET basement membrane is separated with paper, make and leave glue on the paper surface and impression has described mould release or the paint for imaging layer and the aluminium lamination of described graph text information, wherein, the PET basement membrane after peeling off can be used to the basement membrane that is coated with repeatedly;
S7: face figure operation, with PET basement membrane and paper peel off finish after, the coating after transfer and/or the surface of aluminium lamination coating one deck water varnish;
S8: divide cutting process, paper need be sent into cutting machine according to use and cut into corresponding specification.
Wherein, the manufacture craft of described laser plate comprises: the sensitization processing is carried out on the dry plate surface that will have the perfect information picture and text, utilize the chemical plating method to generate the photoetching hectograph of thin layer silver face the described dry plate after the sensitization processing, the complex of described dry plate and photoetching hectograph is placed in the electroplating bath, and the photoetching hectograph of described silver-colored face is connected with the negative pole of power supply, in described electroplating bath, also be provided with nickel plate and electroplate liquid, the nickel plate is connected with the positive pole of power supply, connect behind the power supply and can plate nickel dam on the surface of the photoetching hectograph of described silver-colored face, composite plate after the nickel plating is taken out in described electroplating bath, the photoetching hectograph that is coated with the silver-colored face of nickel dam separated with described dry plate make silver-colored face nickel version, described silver-colored face nickel version is the mother matrix in the described laser plate, copy some mother's versions by electroplating technology again with described mother matrix, described mother's version and base material are made the radium-shine plate that is used for mold pressing after compound.
Wherein, in the manufacture craft of described laser plate, the THICKNESS CONTROL of described mother matrix is at 0.1 μ m~0.2 μ m, and the THICKNESS CONTROL of the described radium-shine plate that is used for mold pressing is at 450 μ m~550 μ m.
Wherein, in described painting process, the thickness that is coated on epilamellar mould release of described PET or paint for imaging is 1.0~1.5g/m
2
Wherein, in described covering with paint technology,, in described paint for imaging, be added with the n-propyl acetate solvent in order to guarantee the uniformity of coating.
Wherein, in described covering with paint technology, be provided with drying course, described paint for imaging is covered with paint, lacquer, colour wash, etc. after on the described PET basement membrane equably, make described PET basement membrane pass through drying baker, be provided with air exhausting device on described drying baker, described drying baker and described air exhausting device are used to make described n-propyl acetate solvent to be evaporated and discharge by described air exhausting device.
Wherein, in described mold pressing procedure, described mold pressing operating process should be arranged in the dustless operation room to be carried out.
Wherein, in described mold pressing procedure, the temperature of mold pressing should be controlled between 150 ℃~180 ℃ in the described mold process, and the molding pressure in the described mold process should be controlled to be 2kg, and the speed of service of laser plate and PET basement membrane is controlled to be 30m/s in mold process.
Wherein, in the described operation of aluminizing, described vavuum pump should reach 1.3 * 10 to the vacuum that vacuum evaporation plating machine vacuumizes
-2~1.3 * 10
-3Pa.
Wherein, in the described operation of aluminizing, the thickness of described aluminium coated should be controlled at 0.02 μ m~0.04 μ m.
Advantage of the present invention and beneficial effect are: this technology can combine anti-counterfeiting printing technology with the trans-printing technology, can make the very thin 0.02 μ m~0.04 μ m that reaches of the thickness work of transferring to the aluminium coated on the paper, and the thickness of aluminium foil is 6.5-7 μ m in general aluminum foil composite paper, therefore the technology in adopting the present invention can be saved a large amount of aluminiums, and the paper after shifting simultaneously is easy to quick degraded.Employed basement membrane can be recycled in the transfer printing brush in addition, and free from environmental pollution, transfer paper also can reclaim and be used for recycled paper.
The specific embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is further described.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
The concrete technical scheme of implementing of the present invention is:
Embodiment 1
A kind of anti-counterfeiting transfer printing technology, this typography comprises following processing step:
The first step: plate-making process, make the laser plate that has graph text information;
Second step: painting process, utilize coating apparatus to be coated with one deck mould release or paint for imaging evenly, densely on the PET basement membrane;
The 3rd step: the operation of aluminizing, the surface is coated with the PET basement membrane of mould release or paint for imaging and aluminium device in vacuum evaporation plating machine, with vavuum pump vacuum evaporation plating machine is carried out vacuum pumping, described aluminium is heated to 1200 ℃~1400 ℃ then, make the gaseous aluminum particulate at the described mould release that moves or the surface deposition of paint for imaging, form the continuous and bright metal aluminium lamination of one deck through supercooling again;
The 4th step: mold pressing procedure, utilize the thermal change performance of laser plate immersion coating, the graph text information on the laser plate is stamped on the described aluminium lamination, make the holography shifting film that is used to shift;
The 5th step: compound working procedure, described holography shifting film and base stock are bonded together, first with the uniform applying glue of paper, again holography shifting film is attached on the paper after the applying glue, roll applying by pressure roller then, pass through oven for drying again;
The 6th step: stripping process, the PET basement membrane is separated with paper, make and leave glue on the paper surface and impression has described mould release or the paint for imaging layer and the aluminium lamination of described graph text information, wherein, the PET basement membrane after peeling off can be used to the basement membrane that is coated with repeatedly;
The 7th step: face figure operation, with PET basement membrane and paper peel off finish after, the coating after transfer and/or the surface of aluminium lamination are coated with one deck water varnish;
The 8th step: divide cutting process, paper need be sent into cutting machine according to use and cut into corresponding specification.
Embodiment 2
On the basis of embodiment 1, preferable technical scheme also has, the manufacture craft of described laser plate comprises: the sensitization processing is carried out on the dry plate surface that will have the perfect information picture and text earlier, utilize the chemical plating method to generate the photoetching hectograph of thin layer silver face the described dry plate after the sensitization processing, the complex of described dry plate and photoetching hectograph is placed in the electroplating bath, and the photoetching hectograph of described silver-colored face is connected with the negative pole of power supply, in described electroplating bath, also be provided with nickel plate and electroplate liquid, the nickel plate is connected with the positive pole of power supply, connect behind the power supply and can plate nickel dam on the surface of the photoetching hectograph of described silver-colored face, composite plate after the nickel plating is taken out in described electroplating bath, to be coated with the photoetching hectograph of silver-colored face of nickel dam and described dry plate again separates and makes silver-colored face nickel version, wherein said silver-colored face nickel version is the mother matrix in the described laser plate, copy some mother's versions by electroplating technology again with described mother matrix, described mother's version and base material are made the radium-shine plate that is used for mold pressing after compound.
Embodiment 3
On the basis of embodiment 2,, preferable technical scheme also has, and in the manufacture craft of described laser plate, the THICKNESS CONTROL of described mother matrix is at 0.1 μ m~0.2 μ m, and the THICKNESS CONTROL of the described radium-shine plate that is used for mold pressing is at 450 μ m~550 μ m.
Embodiment 4
On the basis of embodiment 1,, preferable technical scheme also has, and in described painting process, the thickness that is coated on epilamellar mould release of described PET or paint for imaging is 1.0~1.5g/m
2
Embodiment 5
On the basis of embodiment 4,, preferable technical scheme also has, and in order to guarantee the uniformity of coating, is added with the n-propyl acetate solvent in described paint for imaging in described covering with paint technology.
Embodiment 6
On the basis of embodiment 1, preferable technical scheme also has, in described covering with paint technology, be provided with drying course, described paint for imaging is covered with paint, lacquer, colour wash, etc. after on the described PET basement membrane equably, make described PET basement membrane by drying baker, be provided with air exhausting device on described drying baker, described drying baker and described air exhausting device are used to make described n-propyl acetate solvent to be evaporated and discharge by described air exhausting device.
Embodiment 7
On the basis of embodiment 1,, preferable technical scheme also has, and in described mold pressing procedure, described mold pressing operating process should be arranged in the dustless operation room to be carried out.
Embodiment 8
On the basis of embodiment 7, preferable technical scheme also has, in described mold pressing procedure, the temperature of mold pressing should be controlled between 150 ℃~180 ℃ in the described mold process, molding pressure in the described mold process should be controlled to be 2kg, and the speed of service of laser plate and PET basement membrane is controlled to be 30m/s in mold process.
Embodiment 9
On the basis of embodiment 1,, preferable technical scheme also has, and in the described operation of aluminizing, described vavuum pump should reach 1.3 * 10 to the vacuum that vacuum evaporation plating machine vacuumizes
-2~1.3 * 10
-3Pa.
Embodiment 10
On the basis of embodiment 9,, preferable technical scheme also has, and in the described operation of aluminizing, the thickness of described aluminium coated should be controlled at 0.02 μ m~0.04 μ m.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.