CN100384622C - Stripping film and its mfg. method - Google Patents
Stripping film and its mfg. method Download PDFInfo
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- CN100384622C CN100384622C CNB031243606A CN03124360A CN100384622C CN 100384622 C CN100384622 C CN 100384622C CN B031243606 A CNB031243606 A CN B031243606A CN 03124360 A CN03124360 A CN 03124360A CN 100384622 C CN100384622 C CN 100384622C
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- stripping
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Abstract
The present invention relates to a stripping film of a ceramic printing circuit substrate and a manufacture method thereof. When ceramic paint is coated on a stripping layer, the ceramic paint is not ejected through the coating constrained optimization of the stripping layer, and after being peeled off the stripping film, the ceramic paint has good dimension shape, particularly in the width direction end. In the stripping film formed by coating the stripping layer 2 on at least one surface of a base material film 1, both ends of the base material film 1 in the width direction have parts coated with no stripping layer 2. When oil ink 9 is coated on uncoated parts 5 and visual acquisition ends 4 with the stripping layer 2, the length of a part 8 stained with no oil ink 9 from the visual acquisition ends 4 to the uncoated parts 5 in the width direction is smaller than 2.0mm.
Description
Technical field
The present invention relates to stripping film and manufacture method thereof, particularly be used to make the stripping film and the manufacture method thereof of laminated ceramic capacitor.
Technical background
During ceramic electronic components such as manufacturing capacitor, piezoelectric part, positive temperature coefficient thermis, negative-characteristic thermistor or variable resistor, for example, the ceramic coating that will contain ceramic powder, organic bond, plasticizer, solvent etc., utilization is scraped the skill in using a kitchen knife in cookery and is coated on the flexible supporter, form tellite (dielectric layer), adopt following operation thereon, promptly utilize net-point printing to form electrodes such as palladium, silver, nickel.In its manufacturing process, when obtaining lit-par-lit structure, each tellite that obtains is carried out stacked, form desired lit-par-lit structure, through the die cut operation, obtain ceramic printed-circuit board.Adhesive in the ceramic printed-circuit board that obtains is like this burnt,, on the sintered body that obtains, formed terminal electrodes such as silver, silver-palladium, nickel, copper, obtain ceramic electronic components at 1000～1400 ℃ of following sintering.
As the technology of making ceramic electronic components, in addition the method (spy opens clear 63-188926 communique etc.) that heat is duplicated has also been proposed, tellite is formed on the flexible support, with according to needed stacked number, form the process of Green's tellite and the operation that on tellite, prints electrode on the flexible support repeatedly, obtaining the method for duplexer.
Any method in the above-mentioned ceramic electronic components manufacture method, the operation that the tellite that all requires to be shaped strips down from flexible support, but in this stripping process, when flexible support is peeled off, be easy to produce the problem of damage tellite.For example, during laminated ceramic capacitor, owing to require miniaturization and high capacity, so will reduce each layer dielectric layer thickness sometimes, take to increase the gimmick of stacked number, be accompanied by this filming, the phenomenon of damage tellite becomes more remarkable.When tellite sustains damage, wait undesirable feature owing to often be short-circuited in the end article, make stacked qualification rate very poor, so for the technology of the satisfactory fissility of acquisition between flexible support and the tellite, carrying out and study for many years always.
In order to peel off satisfactorily, for example, considered the whole ceramic coating face of flexible support is implemented lift-off processing.Yet, when fissility is too good, also can run counter to desire, external force a little in the future from the outside, tellite will split away off from flexible support, and damaged tellite is present on the stacked interface as foreign material, causes problems such as causing defective.Therefore, in order to obtain good tellite, and end article, between flexible support and tellite, need pay the fissility and the adherence of appropriateness.
The applicant is for this type of problem, opening the technical scheme that proposes in the flat 8-130152 communique the spy is on the ceramic coating applicator surface on the flexible support, and the zone (peel ply uncoated part) of carrying out the zone (peel ply coating part) of lift-off processing and not carrying out lift-off processing is set.According to this technology, can obtain the fissility and the adherence of appropriateness, even the very thin thickness of tellite also can obtain to be difficult to produce the flexible support (stripping film) of peeling off phenomenons such as difficulty and article characteristic be bad.
Yet, the stripping film that uses above-mentioned technology to obtain, when making tellite, particularly ceramic coating is coated on the peel ply coating part of stripping film, when covering the peel ply uncoated and partly forming tellite, near the width end of peel ply, produce the striated defective sometimes along the length direction of film.
Result from surface observation, be envisioned that in this striped part, applied very thin ceramic coating, think as its reason, in the peel ply end, owing to there is the part (among Fig. 3, the bump that the symbol A in the peel ply 12 represents) of thickening in peel ply formation protuberance, is not stained with in this part and closes ceramic coating (among Fig. 3, the hollow sectors that the symbol B that produces represents) in dielectric layer 13.When this phenomenon takes place when, after printing electrodes such as palladium, silver, nickel on the tellite, when stripping film is peeled off, the end of tellite (ear end shape) can not form linearity, but with certain concavo-convex corrugated be stripped from, jog can reach near the electrode that forms the tellite end.In the goods that make, the possibility that produces bad phenomenon such as short circuit can increase.
Summary of the invention
Therefore, the objective of the invention is by making the peel ply coating condition in the above-mentioned technology form optimization, provide a kind of on peel ply during coated with ceramic coating, do not upspring, after consequently peeling off from stripping film, acquisition has the stripping film of excellent dimensions shape (particularly on the end of width) ceramic printed-circuit board, and manufacture method.
The inventor is for solving above-mentioned problem, be conceived to the peel ply end regions and further investigate, found that by the uncoated part of special setting peel ply and the length of coating portion boundary partial shape and width, can achieve the above object, and so far finish the present invention.
That is, stripping film of the present invention, at least one face of matrix material film, the utilization coating is provided with peel ply and forms, it is characterized in that,
The uncoated part that has above-mentioned peel ply at the width both ends of above-mentioned matrix material film, coating should comprise above-mentioned peel ply by the oily ink of the end of visual identification and this uncoated part the time, be not stained with the part of this oily ink, from above-mentioned end by visual identification to above-mentioned uncoated part, in the length that forms on the width below the 2.0mm.In addition, infer such stripping film, its formation be above-mentioned peel ply to above-mentioned uncoated part, on width, have the boundary member that thickness reduces gradually, and the width length of this boundary member is below 2.0mm.
Stripping film of the present invention as above-mentioned matrix material film, preferably uses polyester film.
The manufacture method of stripping film of the present invention comprises that with remover liquid organic solvent diluting be coated in the operation on the host material film, the surface tension that it is characterized in that above-mentioned organic solvent is below 0.027N/m.
Description of drawings
Fig. 1 is near the structure part schematic cross-sectional views in peel ply end of stripping film.
Fig. 2 is near the partial plan when having applied oily ink the peel ply end of stripping film.
Fig. 3 does not produce when upspringing near the part sectional drawing of the structure peel ply end of stripping film in ceramic coating.
Fig. 4 is near the partial plan of other situations when applying oily ink the peel ply end of stripping film.
The specific embodiment
Below concrete example of the present invention is described.
In the stripping film of the present invention, shown in the partial plan among Fig. 2, on at least one face of matrix material film 1, the uncoated part 5 that has width length W1 at the width both ends, utilize coating that peel ply 2 is set, when comprising by the end 4 of the peel ply 2 of visual identification and uncoated part 5 ground coating oily ink 9 on the stripping film after forming peel ply 2, the part 8 of not being stained with oily ink 9 is dividing length on 5 the width below 2.0mm from end 4 to uncoated.Obtained appropriate fissility like this, tellite is easy to strip down from stripping film, has simultaneously also guaranteed appropriate closing property of adhesion, also can not produce tellite and come off and sneak into foreign material from stripping film.
Above-mentioned what is called " by visual identification " has the following concrete meaning.Promptly, part 6 from the end shown in Fig. 24 to uncoated part 5, since applied than the thin remover liquid of peel ply 2 body parts with specific thickness, thus different with the form and aspect of peel ply 2 body parts, we can say with the form and aspect of uncoated part 5 roughly the same.Therefore, when " visual ", can not see and form peel ply 2.According to this situation, with end 4 as " end " by visual identification.
Among the present invention, width length D1 to uncoated part 5 is controlled at below the 2.0mm with the end 4 of never being stained with oily ink 9 parts 8, preferably below the 1.0mm, can prevent like this peel ply end peel ply 2 protuberance, restrain ceramic coating and upspring, obtained not producing all good tellite of size shape of striped, particularly width.
Opposite with it, never be stained with the width length of the end 4 of oily ink 9 parts 8 to uncoated part 5, when surpassing 2.0mm, think as shown in Figure 3, peel ply 12 local eminences with boundary portion 16 adjacent parts, form bump A, produce illustrated ceramic coating 13 by this bump A and upspring, formed hollow sectors B.Cause the reason that produces hollow sectors B by this bump A, be presumed as follows.Promptly, be coated in the surface tension of solvent for use in peel ply 12 coating on the matrix material film 11 when very big, after the coating up between dry period, applicator surface forms shrinks, as shown in the figure, the shape of peel ply end keeps very thin in end, simultaneously, from its slightly private side mountain shape protuberance takes place, form bump A.
Therefore, in the manufacture method of stripping film of the present invention, be conceived to the surface tension of solvent for use in peel ply 2 coating, in order to form the peel ply 2 that does not produce protuberance in the end, must use with surface tension below 0.027N/m, be preferably in the peel ply coating of the following organic solvent modulation of 0.025N/m.So long as it is just passable to have a capillary organic solvent of above-mentioned scope, do not limit its kind and separately, the classification of mixed system etc., can use all kinds of solvents such as general used cyclohexane, n-hexane, heptane, toluene.
In the stripping film of the present invention, shown in width sectional drawing among Fig. 1, infer that peel ply 2 has the boundary member 6 of the width length D1 that thickness reduces gradually towards uncoated part 5 on width.As above-mentioned, the part 8 of not being stained with oily ink 9 from the end 4 to the width length of uncoated part 5 when 2.0mm is following, think that the width length D1 of diagram boundary member 6 reaches below the 2.0mm.
Opposite with it, as shown in Figure 4, from by the end 14 of visual identification peel ply to uncoated part 15, when the width D 2 of not being stained with the part 18 inner boundary parts 16 of oily ink 19 surpasses the stripping film of 2mm, affirmation during coated with ceramic coating, is upspring on peel ply 12.Like this, in the stripping film of the present invention,, be easy to try to achieve the cross direction length D1 of boundary member 6 by coating oily ink 9.As spendable oily ink among the present invention, for example have the No.500 (oiliness) red, large-scale (oiliness) of マ ジ Star Network イ Application キ society system red, the utmost point black thick word Fang Xin of this [Pi:S] (oiliness) of skin of red, black, blue, the Mitsubishi's pencil (strain) of (oiliness) McGee's (oiliness) red, ZEBRA society system system+The Scarlet Letter circle core too, etc.
Spendable matrix material film 1 does not have particular restriction among the present invention, preferably uses polyester film.In the purposes that requires the transparency, better use the good polyester film of the transparency, the polyester film that better uses twin shaft to extend.In requiring the purposes of light-proofness, better use has cooperated the polyester film of inorganic pigment, is more preferably to have cooperated TiO
2, SiO
2Twin shaft Deng a class pigment extends polyester film.
Constitute the polyester of this polyester film, preferably the crystallinity wire saturated polyester that is formed by aromatic series two basic acid compositions and diol component for example has polyethylene terephalic acid ester, polypropylene terephalic acid ester, polybutene terephalic acid ester, polyethylene-2,6-naphthoic acid ester etc.
Matrix material film among the present invention, known method manufacturing before can using.For example, the manufacturing that twin shaft extends polyester film is with after the polyester drying, uses the extruder fusion, is expressed to from mould (as T-mould, I-mould etc.) on the rotation drum cooler, cooling forms not stretched PTFE film rapidly, then, stretched PTFE film does not extend on biaxially oriented, as required, can carry out heat fixation.The thickness of matrix material does not have particular restriction, best 5～250 μ m.
The remover liquid that uses as forming peel ply 2, the coating that preferably use silicone resin, particularly the constrictive type silicone resin is become with above-mentioned organic solvent diluting.Constrictive type silicone resin as such does not have particular determination, for example can use kinds such as polycondensation reaction type, addition reaction-type, UV cured type, electronics line constrictive type.
Being coated with rete 2 can be by behind the applying coating that will contain the constrictive type silicone resin, carries out the drying sclerosis and forms.As coating method, can adopt known method such as two-sided roller coating process, gravure roll coating process, air-blade type coating process.
The constrictive type silicon resin coating of coating for example, can utilize heat drying, sclerosis, forms cured film.At this moment, preferably by under 50～180 ℃, be preferably under 80～160 ℃, heat treated more than best 10 seconds, forms cured film more than 5 seconds.As the applied thickness of constrictive type silicone resin, 1 good～25g/m
2, better 2～20g/m
2, the silicone resin coating thickness after the sclerosis, 0.05～1 good μ m, better 0.1～0.5 μ m.Applied thickness after the sclerosis is during less than 0.05 μ m, and stripping performance is tending towards reducing.When the applied thickness after the sclerosis surpassed 1 μ m, the sclerosis of filming can be tending towards insufficient, and stripping performance is passed in time and changed.
Embodiment
Below utilize specific embodiment to illustrate in greater detail the present invention.
(embodiment 1～5 and comparative example 1～2)
The modulation of＜peel ply coating 〉
In the mixture of dimethyl silicone polymer with vinyl and hydrogenated diene silane based compound, add platinum group catalyst and carry out addition reaction, the sclerosis silicone resin (SHIN-ETSU HANTOTAI's chemical industry (strain) system, KS-847H) of this addition reaction-type is dissolved in the various organic solvents shown in the following table 1, and the overall solid component concentration that is made as peel ply coating respectively is 3.0% silicon resin coating.The use level of various materials is as follows.
Hardening silicone resin KS-847H 300g
(SHIN-ETSU HANTOTAI's chemical industry (strain) system, solid component concentration 30% resin 90g)
Platinum catalyst CAT-PL-50T (SHIN-ETSU HANTOTAI's chemical industry (strain) system) 3.0g
Organic solvent 2700g
Use the bar type applicator, with the silicon resin coating that obtains, be coated in as matrix material film, the twin shaft that 38 μ m are thick extends on polyethylene terephalic acid ester (PET) film, and dried coating thickness is 0.15 μ m, and the uncoated part of 1cm is set from both ends, under 110 ℃ heating-up temperature, carry out the drying and the sclerous reaction in 40 seconds, form peel ply 2, be made into the stripping film of the web-like of coiling.
The modulation of＜dielectric (pottery) coating 〉
After powder such as the barium titanate of particle diameter 0.1～1.0 μ m, chromium oxide, yittrium oxide, manganese carbonate, brium carbonate, calcium carbonate, silica are carried out roasting, mix by following composition, BaTiO
3Be taken as 100 moles of %, be converted into Cr
2O
3Be 0.3 mole of %, to be converted into MnO be 0.4 mole of %, be converted into BaO is 2.4 moles of %, be converted into CaO is 1.6 moles of %, is converted into SiO
2Be 4 moles of %, be converted into Y
2O
3Be 0.1 mole of %, utilize ball mill to mix 24 hours, obtain dried dielectric raw material.This dielectric raw material of 100 weight portions, 5 parts by weight of acrylic acid resins, the support of 40 weight portion chloromethanes, 25 weight portion acetone and 6 weight portion Mineral spirits are cooperated, use commercially available φ 10mm zirconium oxide bead, utilize the crucible pallet to mix 24 hours, obtain dielectric (pottery) coating.
(dielectric coating has or not generation elasticity near the peel ply application tip)
Use the bar type applicator, above-mentioned dielectric coating is coated on each stripping film, make dried coating thickness reach 4.5 μ m.The dielectric coating of coating, expose 4～5mm from the peel ply end long.Make each sheet that obtains near fluorescent lamp, have or not the generation dielectric coating to upspring in the evaluation peel ply application tip.As metewand, dielectric is not upspring, and is designated as zero; Dielectric is upspring slightly, and ear end shape invariance is bad when peeling off dielectric, and note is made △; Think that dielectric upsprings, ear end shape degenerated when dielectric was peeled off, be designated as *.
(near the peel ply application tip oily ink upspring the width length of part)
Do not forming on each stripping film of dielectric layer 3, comprise that peel ply 2 ends 4 and uncoated part 5 by visual identification apply oily ink (マ ジ Star Network イ Application キ society system, the utmost point too (oiliness) are red) from uncoated part 5 to the coating part like that, measure the length (D1 among Fig. 2 and Fig. 4 and D2 (mm)) (with reference to Fig. 2) of not being stained with the oily ink part.
These results are shown in following table 1 in the lump.
[table 1]
As described above, according to stripping film provided by the invention and manufacture method thereof, on peel ply during coated with ceramic coating, do not upspring, its result is after peeling off from stripping film, can obtain, particularly have the tellite of excellent dimensions in the width end.
Claims (3)
1. stripping film, utilization applies the coating that silicone resin is diluted and peel ply is set and forms in organic solvent at least one face of matrix material film, this organic solvent is at least a organic solvent that is selected from the group of hexane, heptane, toluene and ethyl acetate formation, it is characterized in that
The part that has the above-mentioned peel ply of uncoated at the width both ends of above-mentioned matrix material film, comprise above-mentioned peel ply by the state of the end of visual identification and this uncoated part under during the coating oily ink, the part of not being stained with this oily ink from above-mentioned by the length of visual identification end to the width of above-mentioned uncoated part below 2.0mm.
2. according to the stripping film of claim 1 record, it is characterized in that above-mentioned matrix material film is a polyester film.
3. the manufacture method of the stripping films of claim 1 or 2 records comprises and utilizes organic solvent with the dilution of remover liquid, is coated in the operation on the matrix material film, it is characterized in that,
The surface tension of above-mentioned organic solvent is below 0.027N/m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031243606A CN100384622C (en) | 2003-04-02 | 2003-04-02 | Stripping film and its mfg. method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031243606A CN100384622C (en) | 2003-04-02 | 2003-04-02 | Stripping film and its mfg. method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1533885A CN1533885A (en) | 2004-10-06 |
| CN100384622C true CN100384622C (en) | 2008-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031243606A Expired - Fee Related CN100384622C (en) | 2003-04-02 | 2003-04-02 | Stripping film and its mfg. method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012224011A (en) * | 2011-04-21 | 2012-11-15 | Lintec Corp | Release film for ceramic green sheet manufacturing process |
| WO2016158988A1 (en) * | 2015-03-31 | 2016-10-06 | 日産化学工業株式会社 | Composition for forming release layer, and release layer |
| CN113165361B (en) * | 2018-11-22 | 2023-06-20 | Tdk株式会社 | Release film, ceramic member sheet, method for producing release film, method for producing ceramic member sheet, and method for producing laminated ceramic capacitor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002019037A (en) * | 2000-07-06 | 2002-01-22 | Lintec Corp | Process film for manufacturing ceramic green sheet |
| JP2002052671A (en) * | 2000-08-07 | 2002-02-19 | Tdk Corp | Release film and method for manufacturing the same |
| CN1380850A (en) * | 2000-05-19 | 2002-11-20 | Tdk株式会社 | Functional film having functional layer and article provided with functional film |
-
2003
- 2003-04-02 CN CNB031243606A patent/CN100384622C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1380850A (en) * | 2000-05-19 | 2002-11-20 | Tdk株式会社 | Functional film having functional layer and article provided with functional film |
| JP2002019037A (en) * | 2000-07-06 | 2002-01-22 | Lintec Corp | Process film for manufacturing ceramic green sheet |
| CN1332083A (en) * | 2000-07-06 | 2002-01-23 | 琳得科株式会社 | Casting mould for producing ceramic green-pressing sheet |
| JP2002052671A (en) * | 2000-08-07 | 2002-02-19 | Tdk Corp | Release film and method for manufacturing the same |
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| Publication number | Publication date |
|---|---|
| CN1533885A (en) | 2004-10-06 |
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Granted publication date: 20080430 Termination date: 20130402 |