The stencilization plate
The present invention relates to a kind of stencilization plate.More particularly, the present invention relates to a kind of stencilization plate, have excellent heat-resisting fusibleness hot (heater element) that it is used in the equipment of preparation perforation stencilization plate.
In the preparation of perforation stencilization plate, use following two kinds of methods usually.In one approach, the processing drawing is fixed on the stencilization plate, they form onboard corresponding to the blacking of manuscript perforation partly with infrared radiation then.Other method is used hot head.In this method, be included in the information of processing in the drawing and be converted into the signal of telecommunication, and the predetermined total amount of heat that produces according to this signal by the heat head and on the stencilization plate, form perforation.In recent years, the ultrared method of preceding a kind of application had become not too popular.On the other hand, a kind of method of using heat head in back is then adopted in great majority prepare the equipment of perforated template printed panel now.Therefore, need suitably to be fit to the stencilization plate of heat head.
The speed of the heat head perforation stencilization plate that uses in the equipment of preparation perforation stencilization plate has become more and more higher.For example, in the past 5 years, the print throughput that is provided with of the thermal printer head by word processor is brought up near 4 to 5 times.This part ground is because the improvement of print speed printing speed.For high print speed printing speed, when perforated plate, because hot melt, heat head and stencilization plate film are bonded to each other, and the result is easy to take place the breaking of resin molding of stencilization plate.This phenomenon produces owing to this is true, that is, because fusing, film is bonded on the heater element, and wherein, when heating masterplate printing plate surface and when the stencilization plate moves, the heater element of heat head and the separation property on stencilization plate surface are poor.In addition, if heat head increases with respect to the transfer velocity of stencilization plate, cause the breaking of film of significant so.In addition, under these conditions, will not to form perforation on the part corresponding to the stencilization plate of the part of manuscript.As a result, reduced the quality of the image that on printing material, forms.
Usually, there have been many methods to be used for preventing the hot melt of stencilization plate.For example, Japanese patent application 48-30570,58-92595,61-295098,1-238992 and 5-64991 discloses the method that is coated with silicone resin and/or silicone oil on the film surface of stencilization plate.Japanese patent application 6-41234 also discloses the method that a surfactant layer is provided on the film surface of stencilization plate.In addition, Japanese patent application 60-19592 has disclosed the method that a wax layer is provided on the film surface of stencilization plate.
Yet in the method for the liquid substance of application examples such as silicone oil or surfactant, As time goes on, these components are transferred on the supporting layer of supporting resin molding, thereby destroy the effect that liquid substance prevents hot melt gradually.On the other hand, though the method for the thermosetting resin of application examples such as silicone resin is preventing that aspect the hot melt be good, and resin Composition is not become the shortcoming transfer on the supporting layer, these methods are defectiveness also, that is, this thermosetting resin has stoped the heater element membrana perforata.
In order to prevent these, applied in any combination silicone resin and silicone oil, or applied in any combination surfactant and water-soluble polymer.But even in these cases, the ability of perforation is owing to the existence of polymer reduces.In other words, As time goes on, the composition of mixing is separated from each other (causing the bleeding phenomenon), thereby has reduced to prevent the effect of hot melt.
If the wax layer is provided, wax will not transferred on the supporting layer of supporting resin molding, also will not reduce the perforate membrane ability of thermal element.Yet when forming perforation under high print speed printing speed, the effect that prevents hot melt not enough.
Therefore, even the good perforation image of hot melt and the stencilization plate that long heat-resisting fusibleness also is provided are not provided when an object of the present invention is to address the above problem and provide one the contact of heat head also can be provided under high print speed printing speed.
In one aspect of the invention, a stencilization plate that comprises resin molding and be attached to the resin molding holder on the resin molding arbitrarily with bonding agent is provided, it is characterized in that, this resin molding have one prevent hot melt form by Tissuemat E and be arranged in lip-deep coating of resin molding.
The mean molecule quantity of Tissuemat E preferably is not more than 10000.
The coating that prevents hot melt preferably by on surface resin film with 0.01 to 5g/m
2Amount (on the basis of drying) coating Tissuemat E prepare.
Because compare with traditional hot melt layer that prevents, stencilization plate of the present invention is used has the Tissuemat E that well prevents the hot melt effect, even the reproduction of the manuscript that may obtain to provide good does not cause the perforation image that resin molding breaks yet under high print speed printing speed.In addition, As time goes on, Tissuemat E can not transferred on the supporting layer.In addition,, Tissuemat E forms because being single composition, thus do not produce the bleeding phenomenon, thereby showed the long duration of action that prevents hot melt.
The Tissuemat E of using among the present invention preferably is coated on the surface resin film of stencilization plate as the hot melt inhibitor.For the perforation quality that prevents resin molding reduces, the mean molecule quantity of Tissuemat E preferably is not more than 10000.Be more preferably in 500 to 5000 scope.
Hope is with 0.01-5g/m
2Amount coating Tissuemat E, and 0.1-2g/m preferably
2(on the basis of drying).If amount very little, prevent that the effect of hot melt from producing breaking of resin inadequately and easily.On the other hand, excessively then produce bad punching quality.
Tissuemat E can be used with the solid form of for example small pieces, or uses with the emulsion form of dispersing wax in water.According to the concrete form of suitably selecting Tissuemat E in the method for the surface applied wax of resin molding.In the Tissuemat E molecule carboxyl or hydroxyl can be arranged.Also can get and replace by other modification bases of for example methyl and phenolic group.
The coating that comprises Tissuemat E that prevents hot melt can at random contain antistatic agent and other additives.For example, antistatic agent comprises metal organic sulfonate, quaternary ammonium salt, alkylphosphonic and other antistatic agents commonly used.
The used resin molding of the present invention can be made up of polyethylene, polypropylene, polyvinyl chloride, polyvinylidene chloride, polyester, polystyrene, polyurethane, Merlon, polyacrylic resin or silicone resin.In the middle of them, polyvinylidene chloride and polyester are good especially.
Thickness of resin film is generally at 0.5 to 20 μ m, and 1 to 15 μ m preferably.
Stencilization plate of the present invention can be resin molding and support the holder of resin molding to stick together with bonding agent and the composite that obtains.In other words, can only form basically by resin molding.Support the holder of resin molding to be made up of the porous material that allows ink for stencilling to pass, perhaps this holder can be the plate of the deflection of oil-tight China ink.When will carry out printing through a holder time, use the porous support materials that comprises Tengjon (high-quality, their Japan paper comprises the paper mulberry tree), textile or non-textile etc. that allows ink for stencilling to pass through.Have in application under the situation of stencilization plate production perforation stencilization plate of holder, before printing, peel holder on the slave plate off, therefore, only carry out printing with resin molding, can application examples such as the plate of deflections such as resin plate, textile, non-textile, printing paper.In this connection, the stencilization plate of being made up of resin molding does not basically require any holder.
There is no particular restriction bonding agent that resin molding and holder stick together, as long as it can be attached to resin molding on the holder, thereby and can form perforation by the heat melts of coming from heater element.
Below, the present invention will be described by embodiment, and these embodiment should not be construed as limitation of the present invention.
Embodiment 1:
2.0 polyester film that μ m is thick and basic weight are 10g/m
2Porous Tengjon paper with vinyl acetate resin (with the following about 1.0g/m of drying condition
2Amount) stick together each other and dry.Then, with the Tissuemat E shown in the table 1 with 0.5g/m
2The amount on (on the dry basis) is coated on the surface of polyethylene film.
Embodiment 2-4:
Repeat the process of embodiment 1, different is to obtain the stencilization plate by those replacement Tissuemat Es shown in the table 1.
Embodiment 5:
With consistent Tissuemat E used among the embodiment 1 with 0.5g/m
2Amount (on the dry-basis) be coated on the surface of the thick polyester film of 2.0 μ m, thereby obtain the stencilization plate.
Comparative example 1-4:
Repeat the process of embodiment 1, different is with those replacement Tissuemat Es shown in the table 1, thereby obtains the stencilization plate.
Table 1
Name of product (manufactory) amount (wt%) mean molecule quantity embodiment 1 highwax 1120H 100 1200
(Mitsui?Petrochemical
Industries, Ltd) embodiment 2 Highwax 4051E 100 3200
(Mitsui?Petrochemical
Industries, Ltd) embodiment 3 Sunwax E-300 100 2000
(Sanyo?Chemical
Industries, Ltd) embodiment 4 PDX 6,641 100 5,000
(Johnson Polymer Co.) comparative example 1 LG wax (wax) [montan wax] 100 800
(BASF) comparative example 2 KF-96-100,000cp 100-
[silicone oil]
(Shin-etsu?Chemical
Co., Ltd.) comparative example 3 KS-770A[heat-curable silicones 50-
Resin]
KF-96-1,000CP 50 -
[silicone oil]
(Shin-etsu?Chemical
Co., Ltd) comparative example 4 Hostaphat KL340 50-
[phosphate surfactant active]
(Matsumoto?Kosho?Ltd.)
Macrogol 1540 50-
[water-soluble polymer]
(Wako?Pure?Chemical
Industries.Ltd)
The test example
Estimate heat-resisting fusibleness (Tissuemat E is in the effect that prevents on the hot melt), the variation of the heat-resisting fusibleness of passing in time and the perforation quality of stencilization plate of the stencilization plate of embodiment 1 to 5 and comparative example 1 to 4 acquisition.
(1) heat-resisting fusibleness:
Bore a hole each stencilization plate (by the Oa-sis30Ax301 that FujitsuLtd. produces, print speed printing speed: 190 character per seconds with word processor.(printing: 10.5 point character, line space: 3.6mm)).The perforation stencilization plate of Huo Deing is subjected to the printing (by RA-205 type of RisoKagakuKogyoK.K production) of stencil printing apparatus like this.But naked eyes confirm breaking of film on the printed matter of gained.Symbol " o " expression has obtained and the consistent best image of original manuscript, and symbol " X " expression has obtained the image different with original manuscript and film rupture takes place.
(2) As time goes on, the variation of heat-resisting fusibleness:
Allow each stencilization plate 50 ℃ of spreadings of bearing month, prevent that specifically hot melt layer from contacting with holder.After this, estimate each stencilization plate in the mode similar to above-mentioned (1).
(3) perforation quality:
With word processor of using in above-mentioned (1) each stencilization plate of boring a hole.Perusal perforation quality.Symbol " o " expression has obtained the image of the original manuscript of accurate reflection, and symbol " x " expression has obtained the image different with original manuscript and can not form enough perforation.
Table 2
Variation perforation quality embodiment 1 zero zero zero embodiment 2 zero zero zero embodiment 3 zero zero zero embodiment 4 zero zero zero embodiment 5 zero zero zero comparative examples 1 that heat-resisting fusibleness is passed in time * 00 comparative examples, 2 zero * zero comparative example 3 zero * * comparative example 4 zero * zero
Can understand from above-mentioned table 2: during boring a hole, each stencilization plate of the present invention with the coating that prevents hot melt does not cause breaking of film, and the printed image of faithful to original manuscript is provided, and shows permanent good heat-resisting fusibleness.
According to the present invention, can provide have permanent good heat-resisting fusibleness and the perforation The mould that breaks of generation tree adipose membrane not in the process even under the condition of the high speed printing of using the heat head The version printed panel. In addition, when take total amount as 0.01 to 5g/m2(on the dry basis) uses flat When average molecular weight is not more than 10000 Tissuemat E, when perforation, can obtain faithful to original The image of manuscript, and do not reduce the quality that resin molding is bored a hole.