The production method of metal-like packing paper
Technical field
The invention belongs to a kind of production method of wrapping paper, be specifically related to a kind of production method that has the wrapping paper of metal-like.
Background technology
Have the interior lining paper of wrapping paper (being called for short " the metal-like packing paper ") extensive use of metal-like as cigarette, tealeaves, chewing gum etc.The existing wrapping paper major part that has metal-like is silver color, and minority is golden gloss, and they all are formed with a metal material layer on the paper substrate surface, mainly contain following several production method:
1, aluminium foil composite algorithm: aluminium foil directly is compounded on the paper, and the shortcoming of this mode maximum is that aluminum foil thickness is big, and the aluminium consumption is big, and the cost height is progressively eliminated;
2, the transfer coated metal oil method of the use of ink and water: promptly be coated with layer of metal printing ink on the reel film substrate, this metal ink also requires peelable transfer; Treat to coat adhesive again after the metal ink layer drying, by adhesive and wrapping paper paper substrate surface recombination together, treat to peel off the reel film substrate after the adhesive drying, so just the metal ink layer is transferred to above the wrapping paper.Metal ink has occurred for many years, and it is meant with tiny sheet metal particulate and replaces pigment or the formulated printing ink of dyestuff in traditional printing ink, has the glittering effect of metal.Common metal ink is mainly Jin Mo and Yin Mo.The gold China ink generally is added with the copper foil particulate and the configuration of zinc thin slice particulate forms, and by controlling and change their ratio, produces the gloss of colors such as blue or green gold, blue or green red gold, red gold; The silver China ink then adds the configuration of aluminum slice particulate and forms, and produces silvering.The solvent of metal ink can be an aqueous solvent, also can be UV oil.The deficiency of the transfer coated metal oil method of the use of ink and water is: (1), metal ink layer are difficult to obtain the surface of good flatness, and reason is as follows: at first, the metal ink that is coated on reel film substrate surface was difficult to obtain desirable flatness originally; Secondly, through the variation more also of the metal ink surface smoothness after shifting, therefore, the wrapper surface metal-like brightness of the transfer coated metal oil method of the use of ink and water, flatness are very poor, seem gloomy, do not reach common metal-like effect; (2), the operating procedure complexity, operation is many; In order to shift the metal ink layer, not only need extra increasing to shift the used reel film substrate (as the interim carrier of metal ink layer) of metal ink layer, also require the metal ink layer to shift, so the prescription complexity of metal ink layer.
3, direct vacuum aluminum-coated method: this mode is at paper base material surface coated one bottom, directly carry out vacuum aluminum-coated then at bottom, therefore the relative aluminium foil composite algorithm of cost is low, technology is simple, but its shortcoming is that product surface poor flatness, brightness are low, the crude porous in surface, make the packing of product of low grade, be not suitable for the requirement of high-grade packing;
4, shift vacuum aluminum-coated method: place vacuum aluminum-coated machine to aluminize the PET transfer membrane earlier, then gluing is compound with paper substrate then, film is peeled off again, and the aluminium molecular layer is transferred on the paper base material by adhesive action.Shift the inside lining packing paper brightness height that vacuum aluminum-coated method is produced, complicated but its technological process is long, the cost height, and can't form hologram pattern.
5, hologram pattern shifts and to add the direct Alplate method of vacuum: this method is that No. 200810015903.1 Chinese patent application file is open by application number, the its preparation method main points are followed successively by: (1), select for use the surface to scribble the film of separation layer, on the film separation layer, carry out contour forging; (2), on the separation layer of contour forging, be coated with the last layer compound adhesive; (3), film that step (2) is obtained and interior lining paper paper substrate are compound; (4), the oven dry, interior lining paper paper substrate and film are peeled off, obtain having the interior lining paper paper substrate of holographic pattern; (5), plate aluminium lamination having on the interior lining paper paper substrate of holographic pattern, just obtain having holographic pattern and interior lining paper metal-like by vacuum aluminum-coated machine.The deficiency of aforesaid way mainly is: (1), technological process are long and complicated, and also must carry out vacuum aluminum-coated operation again on the holographic pattern surface after forming holographic pattern, the manufacturing technique requirent height, and difficulty is big; (2), separation layer may the part peels off untotally at stripping process, so the film after peeling off is difficult to recycle once more, causes aforesaid way cost height, waste big.
Because all there is weak point in above-mentioned variety of way, so people are making great efforts to explore the new method of producing metal-like packing paper always.
Summary of the invention
The production method that the objective of the invention is to overcome above-mentioned shortcoming and a kind of metal-like packing paper is provided, its technological process is short and simply ingenious, and cost is low, and can access the metal-like packing paper that surface smoothness is good, brightness is high.
Its purpose can realize by following scheme: the production method of this metal-like packing paper comprises following operation successively: (1), at wrapping paper paper substrate surface coated with metal printing ink; (2), the wrapping paper paper substrate is scribbled the surface and the film laminating of metal ink; (3), make metal ink layer drying after the pressing, then wrapping paper paper substrate and film are peeled off, obtained metal-like packing paper.
The metal ink Ke Yi that is adopted is Jin Mo or silver-colored black.The wrapping paper of producing like this has the golden gloss or the silvering of light.
Be preferably, in step (2), pressing is carried out with the laser film that is printed with holographic asperities in the surface that the wrapping paper paper substrate is scribbled Jin Mo or silver China ink.Above-mentioned " being printed with the laser film of holographic asperities " also claims in the industry " template ".
In step (2), the surface and the ganoid film that also the wrapping paper paper substrate can be scribbled Jin Mo or silver China ink carry out pressing.
In step (1), the metal ink that is adopted can be UV gold China ink or UV silver China ink; In step (3), utilize the ultraviolet lamp irradiation after the pressing, make the UV oil solvent dry solidification of metal ink, then wrapping paper paper substrate and the film that is printed with holographic asperities are peeled off.
In step (1), the metal ink that is adopted can be gold China ink or the silver China ink that adopts aqueous solvent; In step (3), after the pressing composite of wrapping paper and film sent in the baking oven and dry, make metal ink layer drying, then wrapping paper paper substrate and film are peeled off.
The present invention has the following advantages and effect:
1, because the metal ink on wrapping paper paper substrate surface process and film (comprising laser film) pressing, therefore can make the metal ink surface very smooth, add that trend is parallel with the paper substrate surface (promptly in general more behind the sheet metal particulate pressurized in the metal ink, trend and the surperficial parallel direction of paper substrate more behind each sheet metal pressurized), in addition, metal ink layer of the present invention need not help its surface and keep good flatness through shifting.Therefore with traditional " the transfer coated metal oil method of the use of ink and water " relatively, the present invention can obtain higher minute surface reflecting effect, reduces level of diffusion, demonstrates very bright metal-like, metallic luster,
2, the film in step (2) adopts the laser film that is printed with holographic asperities, then the metal ink surface will also will produce laser texture effect (being holographic asperities) on the basis in overall leveling after the pressing, finally obtain having the wrapping paper of holographic effect, and this wrapping paper needn't carry out vacuum aluminum-coatedly after forming holographic effect as traditional handicraft, just can acquisition simultaneously have the metal-like effect on the basis of holographic effect.Add with above-mentioned the 1st effect to combine that the present invention can obtain high-flatness, laser texture, three kinds of effects of metallic luster simultaneously, improve packing of product class.
3, the technological process weak point is and simply ingenious, and operational sequence is few, and cost is low.Do not need extra increasing to use the reel film substrate, needn't require the effect of the prescription arrival " can shift " of metal ink yet as the interim carrier that shifts metal ink.
4, in the production technology of the present invention, the laser film that is printed with holographic asperities can repeatedly be recycled, and does not exist the laser film separation layer to peel off sordid problem, further reduces cost, and avoids waste.
Description of drawings
Fig. 1 is the technical process schematic diagram of first kind of embodiment of the present invention.
The specific embodiment
Embodiment one
Shown in Figure 1, the production method of this metal-like packing paper comprises following operation successively: (1), wrapping paper unreeling structure 1 unreel wrapping paper paper substrate 11, coat UV silver China ink (so-called UV silver China ink, be exactly solvent be the Yin Mo of UV oil) on wrapping paper paper substrate surface by coating mechanism 2; Laser film unreels the laser film 12 that unreeling structure 5 will be printed with holographic asperities; (2), wrapping paper paper substrate 11 surface that scribbles UV silver China ink carries out pressing with the laser film 12 that is printed with holographic asperities, makes UV silver China ink surface produce holographic asperities; Laminating mechanism is cooperated by transfer roller 3 and roller platen 6, is exerted pressure by 4 pairs of roller platens 6 of cylinder; (3), after the pressing, utilize ultraviolet lamp 7 irradiations, make the UV oil solvent irradiation back at once dry (curing) in the UV silver China ink, then wrapping paper 11 paper substrates and laser film 12 are peeled off, obtain having the wrapping paper of bright silvering and holographic asperities effect, this wrapping paper can be used as cigarette inside lining paper etc., and last laser film rolling-up mechanism 8 is equipped with utilization once more with laser film 12 rollings, and wrapping paper rolling-up mechanism 9 is with wrapping paper 11 rollings.
In the step of the foregoing description (1), also can use UV gold China ink (so-called UV gold China ink, be exactly solvent be the gold China ink of UV oil) instead, finally obtain having the package lining paper of golden gloss and holographic effect.
Embodiment two
The production method of this metal-like packing paper comprises following operation successively: (1), coat the Yin Mo that contains aqueous solvent on wrapping paper paper substrate surface; (2), the wrapping paper paper substrate is scribbled the surface and the smooth surface film laminating of silver China ink, after the pressing composite of wrapping paper paper substrate and film sent in the baking oven and dry; (3), film and wrapping paper paper substrate are peeled off, thus the smooth surface of obtaining such as mirror, have bright silvery wrapping paper, at last with the wrapping paper rolling.
In the step in the foregoing description two (2), also can not use baking oven, and after the composite air dry of paper paper substrate to be packaged and film, carry out step (3) again, film and wrapping paper paper substrate are peeled off.
In the foregoing description, also the Yin Mo that contains aqueous solvent can be changed into the gold China ink that contains aqueous solvent, thereby the smooth surface of obtaining such as mirror, have the wrapping paper of bright golden gloss.