Background technology
Because existing, the object that contains stereochemical structure complicated and changeable and curved face object be difficult to the problem that realizes by traditional mode of printing, the technology of three-dimensional surface coating is in recent years developed rapidly, for example: a large amount of industrial products such as phone housing, antitheft door, various furniture, household electrical appliances, automobile product and cosmetic industry product etc. are all selected to come printed patterns by three-dimensional surface coating technology, and this method is that increasing industry generally adopts.
Existing water transfer printing coating film is to apply one deck water-soluble resin in release liners, treating becomes transparent film layer after the water-soluble resin drying, carry out ink printing by common printed mode again on water soluble film layer and form patterned layer, above-mentioned transparent water soluble film layer and patterned layer namely form water transfer printing coating film.During use, tear release liners off, water transfer printing coating film is immersed in the water, spray activator on the surface of water transfer printing coating film, printing ink is activated and bubbles through the water column, and the base material workpiece is placed water from the top of water transfer printing coating film, because the pressure of water, ink logo is transferred and is attached to product surface.What for example introduce among Chinese utility model patent ZL200820147507.X and the Chinese invention patent ZL02104409.0 all is the typography of above-mentioned water transfer printing coating film or this water transfer printing coating film.
But, the water transfer printing coating film of use prior art carries out surperficial coating to product and has some problems, for example: (1) because the character of printing ink itself, the problem that the pattern of product surface weares and teares easily or comes off may occur being coated on, and needs reinforcement to by the protection of coating pattern;
(2) may be needed the performance that reaches certain by the product surface of surperficial coating, for example wearability, flame resistance etc., this just need be after above-mentioned water transfer surface coating technology be finished, again base material workpiece itself is sprayed one deck protective paint again, for example publication number is that this kind method is adopted in the Chinese invention patent application of CN101695891A exactly, after pattern is transferred to product surface, oven dry, and then topcoating forms layer of transparent protective coating; It is this that the base material surface of the work is implemented the method for protection is comparatively loaded down with trivial details on the one hand, and the surface treatment of base material workpiece has been divided into surperficial coating and two steps of surface lacquer, and generally will have carried out after the surperficial coating spraying paint again after the drying processing, and then baking vanish etc.; Directly the figuratum base material surface of the work of coating is carried out spray treatment on the other hand, the spraying coating process control that needs are strict, because consider by the wrinkle rate of sprayed surface, flow and coating layer thickness uniformity etc., and the surperficial complicated diversity of three-dimensional base material workpiece is easy to cause spraying effect not good;
(3) because the gradually dissolving diffusion of water soluble film layer in water, the patterned layer printing ink that is positioned at the water soluble film layer top spreads easily, is out of shape, is subjected to displacement, produce aberration, the deformation quantity of the pattern that has can reach 165%, and the average 300~400dpi of the precision of images, the highest 600dpi that is no more than has had a strong impact on the coating quality of product surface.
The utility model content
At the deficiencies in the prior art, the purpose of this utility model provides a kind of novel water transfer printing coating film, make when using this water transfer printing coating film that three-dimensional base material workpiece is carried out surperficial coating, can realize the base material workpiece is carried out the disposable surperficial coating of pattern and protective finish, easy and simple to handle, save cost, enhance productivity and guarantee the coating effect of face coat; Reduce deformation quantity, the displacement of surperficial coating pattern greatly, and guarantee integrality and the precision of images of pattern.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of novel water transfer printing coating film is characterized in that, comprising: a water soluble film layer; With the coating layer that is formed on the described water soluble film layer; Described coating layer comprises a plurality of pattern area and at least one coating area, described a plurality of pattern area space, described at least one coating area is connected in the outside of described a plurality of pattern area and around surrounding described a plurality of pattern area, each pattern area is made up of at least one functional coat and an ink coating of distributing from bottom to top.
Further, described water soluble film layer is selected from a kind of in PVA film, water-based PVC film or the water-based PET film.
Further, as a kind of embodiment, coating area is selected water paint for use: PVA coating, water-based PVC coating or the coating of water-based PET coating form.
As another kind of embodiment, coating area is selected non-aqueous coating for use: PU coating, PE coating or the coating of UV photocureable coating form.
Further, described functional coat is formed by PU coating, PE coating, nano paint or the coating of UV photocureable coating.
As a kind of embodiment, described water transfer printing coating film comprises a functional coat, and described functional coat is to be made by doped nano-material in PU coating or the UV photocureable coating.
Further, the thickness of described water soluble film layer is 30 ~ 80 μ m, and the thickness of described coating layer is 5 ~ 20 μ m.The thickness of water soluble film layer can influence its dissolution velocity in water, the thickness of coating layer is the thickness of coating area, the selection of its thickness can influence coating area to the inhibition of pattern area printing ink, therefore selects corresponding water-solubility membrane layer thickness and coating layer thickness according to different base material workpiece.
As another kind of embodiment, described coating layer comprises a plurality of coating areas and a plurality of pattern area, also comprises the PVA district of a plurality of PVA of being coated with coating, between described a plurality of coating areas mutually at interval, the PVA district is connected with pattern area, and is connected between per two coating areas.
Further, the spacing between the described pattern area be described pattern area in the same way width 20%~40%.Certain spacing must be arranged will separating for the pattern area of each different substrate materials workpiece between the pattern area, but spacing is too big, cost raises, and spacing is too low to influence surperficial coating effect again.The selection of above-mentioned spacing is comparatively rational pattern area spacing.
Preferably, the spacing between the described pattern area be described pattern area in the same way width 30%.
Use novel water transfer printing coating film of the present invention to carry out the surperficial coating of stereo product, can reach following beneficial effect:
(1) uses novel water transfer printing coating film of the present utility model, can realize the pattern coating protective finish also coating to the base material workpiece, having been realized the disposable coating of patterned layer and protective finish time the base material surface of the work, enhance productivity;
(2) use novel water transfer printing coating film of the present utility model that the base material workpiece is carried out the surperficial coating of patterned layer and protective finish, easy and simple to handle, save cost, and can guarantee the coating effect of protective finish;
(3) use novel water transfer printing coating film of the present utility model that the base material workpiece is carried out the coating of water transfer surface, can make the final products surface also have wearability, flame resistance and anti-fragility preferably, or have higher hardness;
(4) novel water transfer printing coating film of the present utility model utilizes coating area not activate, and the principle of pattern area activation makes pattern area be intercepted by coating area, has reduced diffusion and the displacement of pattern area printing ink, has improved the pattern quality of base material workpiece after by surperficial coating;
(5) after novel water transfer printing coating film of the present utility model carried out surperficial coating to the base material workpiece, deformation quantity and the displacement of pattern reduced greatly, and deformation quantity is reduced to maximum 3% by original maximum 165%;
(6) after novel water transfer printing coating film of the present utility model carried out surperficial coating to the base material workpiece, the precision of product surface image was brought up to 1080dpi at least by the original 600dpi that is not higher than.
The specific embodiment
A kind of novel water transfer printing coating film of the present utility model comprises: a water soluble film layer 1 and the coating layer 2 that is formed on the water soluble film layer 1; Coating layer 2 comprises a plurality of pattern area 21 and at least one coating area 22, a plurality of pattern area 21 spaces, at least one coating area 22 is connected in the outside of a plurality of pattern area 21 and around surrounding a plurality of pattern area 21, each pattern area 21 is made up of at least one functional coat and an ink coating 213 of distributing from bottom to top.Coating layer can have only a coating area 22, and a plurality of coating areas 22 also can be arranged; If have only one, in the middle of then this coating area 22 is trapped among a plurality of pattern area 21; If have a plurality ofly, each pattern area 21 is surrounded by a plurality of coating areas 22, and between per two coating areas 22 the PVA district is set, and the PVA district is connected with pattern area 21 and a plurality of coating areas 22 are separated.Water soluble film layer 1 can be any one in PVA film, water-based PVC film or the water-based PET film; The coating area 22 of coating layer 2 can select for use water paint also can select for use the non-aqueous coating coating to form, water paint can be: PVA coating, water-based PVC coating or water-based PET coating, non-aqueous coating can be: PU coating, PE coating or UV photocureable coating.Each pattern area 21 can comprise i.e. first functional coat 211 of a functional coat, also can comprise a plurality of functional coats, if include only first functional coat 211, this functional coat can be to be formed by any coating coating in PU coating, PE coating, nano paint or the UV photocureable coating, also can be that the mixture coating of above-mentioned several coating forms; If a plurality of functional coats are arranged, for example, comprise first functional coat 211 and second functional coat 212, then each functional coat can be to be formed by any coating coating in PU coating, PE coating, nano paint or the UV photocureable coating.
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in restriction the utility model.
Embodiment 1
As shown in figures 1 and 3, the water transfer printing coating film of present embodiment comprises water soluble film layer 1, coating layer 2, and water soluble film layer 1 is selected water-based PET film for use, and coating layer 2 comprises a plurality of pattern area 21 and a coating area 22.A plurality of pattern area 21 spaces, coating area 22 connect pattern area 21 and around being arranged at around the pattern area 21, what coating area 22 was selected for use is water paint PVA coating; Pattern area 21 comprises first functional coat 211 and ink coating 213, and this first functional coat 211 selects for use the coating of UV photocureable coating to form.
The preparation method of this water transfer printing coating film is:
(1) water-based PET film is buied from market, and selecting thickness is that the PET film of 80 μ m is as water soluble film layer 1;
(2) above water-based PET film, make coating layer 2, at first determine a plurality of pattern area 21, the surface area size of pattern area 21 is carried out the size of the base material workpiece of surperficial coating as required and come to be determined to have between each pattern area 21 at interval, its spacing be about pattern area 21 width in the same way 20%;
(3) at pattern area 21 distribute from bottom to up first functional coat 211 and ink coating 213, make first functional coat 211 earlier, this first functional coat 211 is formed by the coating of UV photocureable coating, make ink coating 213 then, this ink coating 213 obtains by screen painting or embossing plate mode of printing, finally guarantees the gross thickness 20 μ m of pattern area 21;
(4) other zone except pattern area 21, top with water-based PET film is defined as coating area 22, and this coating area 22 obtains by coating water paint PVA coating, and guarantees that the thickness of coating area 22 is identical with pattern area 21;
(5) obtain the water transfer printing coating film of present embodiment after above-mentioned steps is finished.
When using the water transfer printing coating film of present embodiment to carry out the surperficial coating operation of base material workpiece, adopt the surperficial coating method as Fig. 7~8:
(1) water transfer printing coating film 6 is entered stream film groove 4 by stream film machine 3, water transfer printing coating film 6 floats on the water surface of stream film groove 4, and activator flush coater 5 carries out the activator spraying to water transfer printing coating film 6 above stream film groove;
(2) ink coating 213 of the pattern area 21 of coating layer 2 be activated the reduction and water soluble film layer 1 dissolved gradually, and be not activated around the coating area 22 of pattern area 21 outsides, 22 pairs of pattern area of coating area 21 form and intercept, make first functional coat 211 and the ink coating 213 of pattern area 21 to spread, the tool 8 that base material workpiece 7 is housed is immersed the water from the top of described water transfer printing coating film 6, the A of water (flow) direction such as Fig. 8 to, the front end of water (flow) direction and the angle that is loaded with between the water surface of water transfer printing coating film one side are 50 ° in the tool 8 longshore current film grooves 4, produce bubble and then influence the coating effect when preventing the entry of base material workpiece; Guarantee that in addition each base material workpiece 7 is corresponding with pattern area 21, because the immersion of base material workpiece 7 is attached on the base material workpiece 7 ink coating 213 of winning functional coat 211 and being activated;
(3) tool 8 is taken out from stream film groove 4, first functional coat 211 and the ink coating 213 of patterned layer 21 have been coated on the base material workpiece 7;
(4) base material workpiece 7 is dried or dry, finished the product of surperficial coating.
Use the water transfer printing coating film of present embodiment to carry out the product that surperficial coating obtains by the method for present embodiment, its surface not only has good wearability and higher hardness (3H), and the picture on surface diffusion is little, and deflection is 2% only, and the precision of images reaches 1240dpi.
Embodiment 2
Shown in Fig. 2,3,5, the water transfer printing coating film of present embodiment comprises water soluble film layer 1, coating layer 2, and water soluble film layer 1 is selected the PVA film for use, and coating layer 2 is made of a plurality of pattern area 21, a plurality of coating area 22 and a plurality of PVA district 23.Space and around being arranged at around each pattern area 21 between a plurality of coating areas 22, each PVA district 23 is connected with pattern area 21 and two coating areas 22 are spaced apart, and what coating area 22 was selected for use is non-aqueous coating PU coating; Pattern area 21 comprises first functional coat 211 and ink coating 213, and this first functional coat 211 is selected UV photocureable coating doped nano-material for use and the coating of the coating made forms.
The preparation method of this water transfer printing coating film is:
(1) the PVA film is buied from market, and selecting thickness is that the PET film of 30 μ m is as water soluble film layer 1;
(2) determine a plurality of pattern area 21 above the PVA film, the surface area size of pattern area 21 is carried out the size of the base material workpiece of surperficial coating as required and is determined that the interval is arranged between each pattern area 21, its spacing be about pattern area 21 in the same way width 30%;
(3) at pattern area 21 distribute from bottom to up first functional coat 211 and ink coating 213, make first functional coat 211 earlier, the coating coating that this first functional coat 211 is made by UV photocureable coating doped nano-material forms, make ink coating 213 then, this ink coating 213 obtains by screen painting or embossing plate mode of printing, finally guarantees the gross thickness 5 μ m of pattern area 21;
(4) select between close two the pattern area 21 and subregion between pattern area 21 and the PVA film edge to be decided to be PVA district 23 in other zone except pattern area 21, the top of PVA film, 23 coating PVA coating guarantee that the thickness in PVA district 23 is identical with the thickness of pattern area 21 in selected PVA district;
(5) all be chosen to be coating area 22 in other zone except pattern area 21 and PVA district 23 above the PVA film then, this coating area 22 obtains by coating non-aqueous coating PU coating, and guarantees that the thickness of coating area 22 is identical with pattern area 21;
(6) obtain the water transfer printing coating film of present embodiment after above-mentioned steps is finished.
When using the water transfer printing coating film of present embodiment to carry out the surperficial coating operation of base material workpiece, adopt the surperficial coating method as Fig. 7~8:
(1) water transfer printing coating film 6 is entered stream film groove 4 by stream film machine 3, water transfer printing coating film 6 floats on the water surface of stream film groove 4, and activator flush coater 5 carries out the activator spraying to water transfer printing coating film 6 above stream film groove;
(2) ink coating 213 of the pattern area 21 of coating layer 2 be activated the reduction and water soluble film layer 1 dissolved gradually, and be not activated around coating area 22 and the PVA district 23 of pattern area 21 outsides, the pattern area 21 that has been activated is formed obstruct, make first functional coat 211 and the ink coating 213 of pattern area 21 to spread, the tool 8 that base material workpiece 7 is housed is immersed the water from the top of described water transfer printing coating film 6, the A of water (flow) direction such as Fig. 8 to, the front end of water (flow) direction and the angle that is loaded with between the water surface of water transfer printing coating film one side are 10 ° in the tool 8 longshore current film grooves 4, produce bubble and then influence the coating effect when preventing the entry of base material workpiece; Guarantee that in addition each base material workpiece 7 is corresponding with pattern area 21, because the immersion of base material workpiece 7 is attached on the base material workpiece 7 ink coating 213 of winning functional coat 211 and being activated;
(3) tool 8 is taken out from stream film groove 5, first functional coat 211 and the ink coating 213 of patterned layer 21 have been coated on the base material workpiece 7;
(4) base material workpiece 7 is dried or dry, finished the product of surperficial coating.
Use the water transfer printing coating film of present embodiment to carry out the product that surperficial coating obtains by the method for present embodiment, its surface not only has good wearability and flame resistance, and the picture on surface diffusion is little, and deflection is 3% only, and the precision of images reaches 1080dpi.
Embodiment 3
Shown in Fig. 2,4,6, the water transfer printing coating film of present embodiment comprises water soluble film layer 1, coating layer 2, and water soluble film layer 1 is selected water-based PVC film for use, and coating layer 2 is made of a plurality of pattern area 21, a plurality of coating area 22 and a plurality of PVA district 23.Space and around being arranged at around each pattern area 21 between a plurality of coating areas 22, each PVA district 23 is connected with pattern area 21 and two coating areas 22 are spaced apart, and what coating area 22 was selected for use is non-aqueous coating PE coating; Pattern area 21 comprises first functional coat 211, second functional coat 212 and ink coating 213, and this first functional coat 211 selects for use the nano paint coating to form, and second functional coat 212 selects for use the coating of PU coating to form.
The preparation method of this water transfer printing coating film is:
(1) water-based PVC film is buied from market, and selecting thickness is that the PET film of 55 μ m is as water soluble film layer 1;
(2) above water-based PVC film, determine a plurality of pattern area 21, the surface area size of pattern area 21 is carried out the size of the base material workpiece of surperficial coating as required and is determined, have between each pattern area 21 at interval, its spacing be about pattern area 21 in the same way width 40%;
(3) at pattern area 21 distribute from bottom to up first functional coat 211, second functional coat 212 and ink coating 213, make first functional coat 211 earlier, this first functional coat 211 is formed by the nano paint coating, make second functional coat 212 again, this second functional coat 212 is formed by the coating of PU coating, make ink coating 213 then, this ink coating 213 obtains by screen painting or embossing plate mode of printing, finally guarantees the gross thickness 12 μ m of pattern area 21;
(4) select between adjacent two pattern area 21 in other zone except pattern area 21, the top of water-based PVC film, the subregion between pattern area 21 and the water-based PVC film edge is defined as PVA district 23,23 coating PVA coating guarantee that the thickness in PVA district 23 is identical with the thickness of pattern area 21 in selected PVA district;
(5) all be chosen to be coating area 22 in other zone except pattern area 21 and PVA district 23 above the water-based PVC film then, this coating area 22 obtains by coating non-aqueous coating PE coating, and guarantees that the thickness of coating area 22 is identical with pattern area 21;
(6) obtain the water transfer printing coating film of present embodiment after above-mentioned steps is finished.
When using the water transfer printing coating film of present embodiment to carry out the surperficial coating operation of base material workpiece, adopt the surperficial coating method as Fig. 7~8:
(1) water transfer printing coating film 6 is entered stream film groove 4 by stream film machine 3, water transfer printing coating film 6 floats on the water surface of stream film groove 4, and activator flush coater 5 carries out the activator spraying to water transfer printing coating film 6 above stream film groove;
(2) ink coating 213 of the pattern area 21 of coating layer 2 be activated the reduction and water soluble film layer 1 dissolved gradually, and be not activated around coating area 22 and the PVA district 23 of pattern area 21 outsides, the pattern area 21 that has activated is formed obstruct, make first functional coat 211 of pattern area 21, second functional coat 212 and ink coating 213 can't spread, the tool 8 that base material workpiece 7 is housed is immersed the water from the top of described water transfer printing coating film 6, the A of water (flow) direction such as Fig. 8 to, the front end of water (flow) direction and the angle that is loaded with between the water surface of water transfer printing coating film one side are 30 ° in the tool 8 longshore current film grooves 4, produce bubble and then influence the coating effect when preventing 7 entry of base material workpiece; Guarantee that in addition each base material workpiece 7 is corresponding with pattern area 21, because the immersion of base material workpiece 7 makes the functional coat 211 of winning, second functional coat 212 and the ink coating 213 that is activated is attached on the base material workpiece 8;
(3) tool 8 is taken out from stream film groove 5, first functional coat 211 of patterned layer 21, second functional coat 212 and ink coating 213 have been coated on the base material workpiece 7;
(4) base material workpiece 7 is dried or dry, finished the product of surperficial coating.
Use the water transfer printing coating film of present embodiment to carry out the product that surperficial coating obtains by the method for present embodiment, its surface not only has the anti-fragility of good wearability, flame resistance and low temperature, and the picture on surface diffusion is little, and deflection is 1.5% only, and the precision of images reaches 1680dpi.
It should be noted that at last: above only is preferred embodiment of the present utility model; be not limited to the utility model; although have been described in detail with reference to the utility model of embodiment; for a person skilled in the art; it still can be made amendment to the technical scheme that previous embodiment is put down in writing; perhaps part technical characterictic wherein is equal to replacement; but it is all within spirit of the present utility model and principle; any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.