CN102380888A - Method for producing functional film - Google Patents
Method for producing functional film Download PDFInfo
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- CN102380888A CN102380888A CN2011102505045A CN201110250504A CN102380888A CN 102380888 A CN102380888 A CN 102380888A CN 2011102505045 A CN2011102505045 A CN 2011102505045A CN 201110250504 A CN201110250504 A CN 201110250504A CN 102380888 A CN102380888 A CN 102380888A
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- Prior art keywords
- film
- inoranic membrane
- supporting mass
- material film
- functional film
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/08—Means for treating work or cutting member to facilitate cutting
- B26D7/10—Means for treating work or cutting member to facilitate cutting by heating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/51—Modifying a characteristic of handled material
- B65H2301/515—Cutting handled material
- B65H2301/5153—Details of cutting means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/17—Nature of material
- B65H2701/175—Plastic
- B65H2701/1752—Polymer film
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Laminated Bodies (AREA)
- Details Of Cutting Devices (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The invention provides a method for producing a functional film, that is, a method for producing a slice-shaped functional film with a prescribed shape in the process of forming air-barrier films and other inorganic films and thereby forming the functional film, without damaging the inorganic films. For this purpose, the inorganic films and supports are cut off by heating portions at a cut-off position to a temperature above the glass change temperature of the supports for plastic films and so on which constitute the functional film, thereby solving the problems.
Description
Technical field
The present invention relates to a kind of manufacturing approach of cutting off tympan with the functional film of the functional film of the section shape of manufacturing regulation shape, wherein said tympan has supporting mass that is formed by organic compound and the inoranic membrane that embodies as the function of purpose.
Background technology
Require the packaging material that packing adopted of position or part, food, clothes, the electronic component etc. of moisture resistance to utilize air blocking thin film in the various devices such as display unit such as optical element, LCD or OLED display, semiconductor device, thin-film solar cells; Said air blocking thin film as supporting mass, and forms the film (choke film) that (film forming) embodies gas barrier property with plastic sheetings such as PETG (PET) films on this supporting mass
In addition, also knownly a kind ofly be supporting mass with the plastic sheeting and form antireflective film that antireflection film forms above the supporting mass, form light reflective film that optical reflection film forms or equally above the supporting mass at this same anti-UV film that the UV-preventing film forms etc. that forms above supporting mass at this at this.
Like this; With plastic sheeting etc. as supporting mass with the functional film that forms functional membrane (embodying film) as the function of purpose in, the functional membranes such as optical reflection film that embody the choke film of gas barrier property or embody light reflective are that the situation of inoranic membrane (film that is formed by inorganic compound) or the situation that comprises inoranic membrane are more.
For example, as the choke film, the film that utilization is formed by various inorganic compounds (inorganic matter) such as silicon nitride, silica, aluminium oxide,
Inoranic membrane such as these choke films such as patent documentation 1 are said, and intensity is low and crisp, so destroy because of contact waits easily.
In addition, the meeting hardening was easy to generate fracture etc. when inoranic membrane surpassed 300nm.Therefore, in functional film, being generally the inoranic membrane that obtains as the function of purpose is the film that approaches.
As the method that can make this functional film with good production efficiency, be well known that so-called reel-to-reel (Roll to Roll) method.So-called reel-to-reel method is meant following a kind of manufacturing approach: use rectangular supporting mass (netted supporting mass (substrate/base material)) is wound into the supply volume that web-like forms; Carrying out film forming from supplying with the supporting mass that volume sees off, and the supporting mass that will finish film forming is rolled into web-like once more.
In the film forming of this reel-to-reel method; On through path in the regulation of the film forming room that carries out film forming on the supporting mass; Make and be rolled onto the rectangular supporting mass that batches volume from supply and pass through; Carry out synchronously from the supporting mass of supplying with volume see off film batch with based on the batching of the supporting mass after the end film forming of batching volume, and continuously the supporting mass of conveyance is carried out film forming in film forming room.
At this, the section as regulation shape (given size) under the most situation of functional film is used.Therefore, come the functional film that embodiments such as choke film are carried out film forming as the inoranic membrane of the function of purpose is necessary to cut off the section of (severing processing) established practice shaped through the reel-to-reel method.
The prior art document
Patent documentation
Patent documentation 1:JP spy opens flat 3-108531 communique
As previously mentioned, in the functional film with the inoranic membrane that embodies predetermined function, this inoranic membrane intensity is low and crisp, and thin.
Therefore, for the functional film of the section shape of making the regulation shape, during the film forming inoranic membrane forms on being breaking at supporting mass tympan, because the power that applies during this cut-out, especially near the inoranic membrane off-position cracks or fracture etc.In addition, generally speaking, as the supporting mass of organic compound and low as the connecting airtight property of inoranic membrane of inorganic compound, if the fracture of end links, then this part can be peeled off.
Embody the inoranic membrane of predetermined function if having this fracture or peel off etc., then functional film just can't be brought into play the performance as purpose.
For example, if air blocking thin film, when the choke film at periphery has fracture to wait, then moisture (steam) can from the part of this fracture through and can't obtain gas barrier property (covering property of steam) as purpose.
Summary of the invention
The objective of the invention is to solve the above-mentioned prior art problems of stating; A kind of manufacturing approach of functional film is provided; It will have supporting mass such as plastic sheeting and have tympan as the inoranic membrane of the function of purpose when cutting off the functional film of the section shape of making the regulation shape; Can prevent to cut off the fracture of the inoranic membrane that causes etc., have functional film as the performance of purpose thereby can stablize to make.
In order to reach said purpose; The manufacturing approach of functional film of the present invention provides a kind of manufacturing approach of following function property film; It is characterized in that; The material film of the inoranic membrane that will have the supporting mass that formed by organic compound and formed by inorganic compound cuts off through the temperature that off-position is formed more than the glass transformation temperature of said supporting mass, makes the functional film of regulation shape thus.
In the manufacturing approach of such functional film of the present invention; Preferably; The heating of the cutter through cutting off said material film, based on laser to the severing of said material film and based on contact or contactless heating arrangements any mode to the heating of the said material film before cutting off, make the off-position of said material film form the above temperature of glass transformation temperature of said supporting mass
The scope of 2～10mm with on the cutting direction vertical direction that preferably will begin from said off-position in addition, forms the temperature more than the glass transformation temperature of said supporting mass.
In addition, preferred said material film is rectangular film, when conveyance along its length forms the rectangular film of said inoranic membrane, carries out the formation of the inoranic membrane of said material film.
In addition, preferably carry out the formation of said inoranic membrane on the side face of drum cylindraceous, to roll up the state of hanging said rectangular film.
In addition, at this moment, preferably pull out said rectangular film, in conveyance along its length, carry out the formation of said inoranic membrane, and the rectangular film that will be formed with said inoranic membrane is rolled into web-like once more from the film rolling that becomes web-like to form said rectangular film rolling.
In addition; Preferred said material film is rectangular film; Through this rectangular material film being carried out make the functional film of said regulation shape perpendicular to the cut-out on the length direction at cut-out on the width of length direction and said width both ends.
The temperature of the said off-position when preferably cutting off in addition, is the following temperature of fusing point of said supporting mass.
In addition, preferred said inoranic membrane becomes the embrane method film forming through gas phase.
The invention effect
In the manufacturing approach of functional film of the present invention with above-mentioned formation; The material film that will be formed with the supporting mass that formed by organic compounds such as plastic sheetings and embodied as the inoranic membrane of the function of purpose by inorganic compound being used to of forming cuts off; Thereby make the functional film of the section shape of regulation shape; At this moment, the off-position with said material film is heated to be more than the glass transformation temperature (Tg) of supporting mass (its organic compound).
Has the material film of the supporting mass that forms by organic compound and inoranic membrane and when making the film of regulation shape, the reason that produces fracture or crackle etc. at inoranic membrane is considered in cut-out: the effect that multiplies each other of the internal stress of the supporting mass that the heating because of in the inoranic membrane film forming time produces distortion of material film during with cut-out.Can be described in detail afterwards.
To this; Manufacturing approach of the present invention suppresses the internal stress of supporting mass through having above-mentioned formation when cutting off, thereby can be by the corresponding power of distortion of the material film of inoranic membrane domination when cutting off; The result is the fracture of the inoranic membrane that produces in the time of can suppressing to cut off significantly or crackle etc.
Therefore, manufacturing method according to the invention can suppress fracture or crackle of inoranic membrane etc. significantly, can stably make the functional film of performance as the performance of purpose.
Description of drawings
Fig. 1 (A)～(C) is the figure of an example of the material film of the concept nature manufacturing approach of representing to can be used for functional film of the present invention.
Fig. 2 is the concept map of an example of formation method of inoranic membrane that is used for explaining the manufacturing approach of functional film of the present invention.
Fig. 3 (A)～(C) is the concept map of an example that is used to explain the manufacturing approach of functional film of the present invention.
Fig. 4 is the concept map that is used to explain the manufacturing approach of functional film of the present invention.
Among the figure
12a, 12b, 12c-material film
The 14-inoranic membrane
The organic film of 16a-substrate
The organic film of 16b-
The 20-drum
24-film forming mechanism
26-is by the film forming rolls
28a, 28b-guide reel
The 30-winding off spindle
The 34-film rolling
The 36-carrying roller is right
The 38-rotary cutter
The 40-supporting station
The 42-shearing device
The 46-clipper
48-is cut apart roller
The specific embodiment
Below, for the manufacturing approach of functional film of the present invention, be elaborated in conjunction with preferred embodiment shown in the drawings.
The manufacturing approach of functional film of the present invention is with having the supporting mass that formed by organic compounds such as plastic sheetings and cut off as the material film 12 of the inoranic membrane of the film that is formed by inorganic compound (with reference to figure 3 etc.), thereby makes the method for functional film of the section shape of regulation shape (given size).
In the present invention; Material film 12 is not special to be limited; Embody tympan so long as have the supporting mass that forms by organic compound and functional film, just can utilize the material film 12 of various structures as the inoranic membrane that forms by inorganic compound of the function of purpose.
As an example, shown in Fig. 1 (A) concept nature, illustrative is to form the material film 12 that inoranic membrane (inorganic layer) 14 forms on the surface of supporting mass Z.
Supporting mass Z is not special to be limited, the tympan that is formed by organic compound that can utilize that various supporting masses as functional film use.
Specifically; As the suitable examples of supporting mass Z, illustration has the plastic sheeting that is formed by plastics (macromolecular material) such as PETG (PET), PEN (PEN), polyethylene, polypropylene, polystyrene, polyamide, polyvinyl chloride, Merlon, polyacrylonitrile, polyimides, polyacrylic acid, polymethacrylates.
In addition, supporting mass Z also can be the supporting mass that on the surface (the formation face of inoranic membrane 14) of the plastic sheeting of aforementioned that kind etc., is formed with protective layer, tack coat, reflection layer, prevents layer (film) reflecting layer, light shield layer, planarization layer, cushion, stress relaxation layer etc., that be used to obtain various functions.
For example, as functional film, making air blocking thin film when (stoping the steam film), as inoranic membrane 14, illustration has silicon nitride film, pellumina, silicon oxide film etc.
In addition, as functional film, when making the protective film of the such various display equipments such as display unit of OLED display or LCD, as inoranic membrane 14, illustration has silicon oxide film etc.
In addition, as functional film, when making transparent conductive membrane, as inoranic membrane 14, illustration has ITO (tin indium oxide) film or tin oxide film etc.
And then, as functional film, making the light reflection when preventing the optical thin film of film, light reflective film, various wave filters etc., as long as have by having or embodying the film that the material as the optical characteristics of purpose forms.
Wherein, generally speaking low and crisp and thin from intensity, in addition, and aspect such as the performance degradation that fracture or crackle etc. cause is remarkable, it is suitable that inoranic membrane 14 adopts the choke films, that is to say that the present invention is suitable for the manufacturing of air blocking thin film.
In addition, in manufacturing approach of the present invention, material film is not limited to the surface at supporting mass Z shown in Fig. 1 (A) and forms inoranic membrane 14 and the material film 12a of formation, as previously mentioned, also can utilize the film of various structures.
As an example, be illustrated in the surperficial alternately laminated inorganic layer 14 of supporting mass Z and organic film (organic layer) of forming by organic compound and the material film that constitutes.Especially the surface of supporting mass Z has organic film (the organic film of substrate), and the combination of the more than one inoranic membrane of its laminated 14 and organic film and the material film that forms is suitable illustration.
Specifically, the surface at supporting mass Z such shown in the illustrated view 1 (B) has the organic film 16a of substrate, and has the material film 12b of an inoranic membrane 14 and the combination of the organic film 16b that is formed at these inoranic membrane 14 surfaces (reverse side of supporting mass Z) on it.
Be used for material film of the present invention, the combination of this inoranic membrane 14 and organic film 16b is not limited to one, and the material film 12c shown in Fig. 1 (C) is such, also can be the combination of two inoranic membranes 14 and organic film 16b.And then, also can be material film with combination of inoranic membrane 14 and organic film 16b more than three.
The organic film 16a of substrate and organic film 16b are not special to limit the film that is formed by known organic compound capable of using.
Specifically; Suitably illustration has: thermoplastic resins such as polyethylene, acrylic resin, isobutylene resin, methacrylate-maleic acid, polystyrene, transparent fluororesin, polyimides, fluorinated polyimide, polyamide, polyamide-imides, PEI, acylated cellulose, polyurethanes, polyether-ether-ketone, Merlon, ester ring type polyolefin, polyarylate, polyether sulfone, polysulfones, fluorenes ring modified polycarbonate, alicyclic modified Merlon, fluorenes ring modified poly ester, acryloyl compound, perhaps polysiloxanes, other the film of organo-silicon compound.
For example; At inoranic membrane 14 is to embody under the situation of film (choke film) of gas barrier property; From the flatness that helps gas barrier property, stable on heating viewpoint, be preferred by the formed organic film 16 of the polymer of the cationically polymerizable compound that in functional group, has radical polymerization property compound and/or ether.Wherein, be that the acrylic resin of principal component or organic film 16 that isobutylene resin forms are preferred illustration especially by condensate with acrylic acid ester and/or methacrylate salt monomer.
The organic film 16a of substrate can be identical organic compound with organic film 16b, also can be different organic compounds.In addition, each organic film 16b can be identical organic compound, also can be dispar, the mutual different organic compound of organic film 16b of the superiors (surface) only for example.
Specifically, inoranic membrane 14 generally becomes embrane method (gas phase method of piling) to form through gas phases such as plasma CVD, sputter, vacuum evaporations.And organic film 16 generally forms through cladding process or flash method.
At this, in manufacturing approach of the present invention, preferred feedstock film 12 (supporting mass Z) is a strip, and inoranic membrane 14 preferably when rectangular quilt is become film base material conveyance along its length, becomes embrane method to form through gas phase.
In addition, inoranic membrane 14 preferably forms under the state on the side face that will be hung over drum cylindraceous by one-tenth film base material (being the back side of supporting mass Z) volume.
Fig. 2 conceptually representes the one of which example.
Example shown in Figure 2 is based on aforesaid reel-to-reel method (Roll to Roll; Below, be also referred to as " R to R ") example, promptly; Use the rolls that rectangular rolls coiled web-like is formed; See base material off from this volume, in conveyance along its length, carry out film forming, and the base material after the film forming end is wound into web-like once more.
Need to prove that this film forming based on R to R not only forms inoranic membrane 14, and is suitable for forming organic film 16 etc.
In illustrative example, what form inoranic membrane 14 is rectangular tympan by becoming film base material Zi, as being wound into being loaded by film forming rolls 26 of web-like.By becoming film base material Zi for example is rectangular supporting mass Z (Fig. 1 (A)); Or be formed with the organic film 16a of substrate on the surface of supporting mass Z and the rectangular tympan (Fig. 1 (B)) that constitutes, or on supporting mass Z, be formed with the organic film 16a of substrate, inorganic layer 14 and organic layer 16b and the rectangular tympan (Fig. 1 (C)) that constitutes.
To be become film base material Zi from being pulled out by film forming rolls 26, conveyance along its length, and through guide reel 28a guiding and conveyance to drum 20.By conveyance to drum 20 by become film base material Zi hung over by volume drum 20 side face the regulation zone and be positioned at the one-tenth film location of regulation; In along its length by conveyance; The film forming mechanism 24 of utilization and drum 20 opposite disposed becomes embrane method to form inoranic membrane 14 with gas phases such as sputtering method or plasma CVDs.
Form the inoranic membrane 14 film base material Zi that become afterwards and be directed roller 28b guiding, and be rolled into web-like once more by winding off spindle 30.
When becoming embrane method to form (film forming) inoranic membrane 14 through gas phase, being become film base material Zi is the heat that supporting mass Z produces during by film forming.
The result is, when cool to room temperature, on supporting mass Z, produce because of with the different internal stress that cause of the thermal coefficient of expansion of inoranic membrane 14.The internal stress of this supporting mass Z is the reason that causes inoranic membrane 14 fractures in the cut-out of material film 12 etc., can specify afterwards.
At this, in this R to R device,, applied the tension force that conveyance is used along its length to becoming film base material Zi for conveyance is along its length become film base material Zi.Supporting mass Z has tension force to be applied under the state on the direction this, and the formation through inoranic membrane 14 is heated, and therefore, the internal stress of supporting mass Z becomes bigger.
In addition, with volume on drum 20 hang film base material Zi be the state of supporting mass Z when carrying out the film forming of inoranic membrane 14 too, the formation through inoranic membrane 14 is heated supporting mass Z under the state of bending stress being applied with.Therefore, when on drum 20, forming inoranic membrane 14, it is bigger that the internal stress of supporting mass Z also becomes.
Especially, example as shown in Figure 2 is such, and on drum, carrying out in the device of film forming through R to R, based on the effect that multiplies each other of tension force and bending stress, it is big that the internal stress of supporting mass Z further becomes.
Manufacturing method according to the invention even this have through R to R or rouse into the big material film 12 of the internal stress of film formed inoranic membrane 14 and supporting mass Z, also can appropriate inhibition be cut off the fracture of the inoranic membrane 14 that causes etc.
That is to say, utilize above-mentioned formation method to form the material film 12 that inoranic membrane 14 constitutes, can embody the effect that prevents the manufacturing approaches of the present invention such as fracture of inoranic membrane 14 when cutting off better through use.
The manufacturing approach of functional film of the present invention is that this material film with supporting mass Z and inoranic membrane 14 12 is cut off, and processes the method for functional film of the section shape of regulation shape (given size).
Fig. 3 representes the one of which example.
In example shown in Figure 3, as preferred exemplary, material film 12 is rectangular tablets, this rectangular material film 12 is wound into web-like and constitutes film rolling 34, as this film rolling 34 film 12 that supplies raw material.
In example shown in Figure 3, at first, pull out rectangular material film 12 from film rolling 34, go up at width (perpendicular to the direction of length direction) and cut off, become billet material film 12S.Then, the both ends of the width of this billet material film 12S are cut off in the longitudinal direction, become the functional film F of regulation shape.Need to prove that in the cut-out of billet material film 12S, width and length direction are the width and the length direction that are cut to the rectangular material film 12 before the billet (below, abbreviate " width " as and reach " length direction ").
Fig. 3 (A) conceptually representes an example of the cut-out of width.
In this example, at first, utilize carrying roller rectangular material film 12 to be pulled out from film rolling 34 to 36, and by carrying roller to 36 (arrow a direction) conveyances along its length, on width, cut off simultaneously by rotary cutter 38.Through the cut-out of this rotary cutter 38, become and cut into slices the accordingly billet material film 12S of shape of the length of the functional film F that makes.
At this, in the example shown in Fig. 3 (A), rectangular material film 12 is that the mode of top among the figure is drawn out with the formation face of inoranic membrane 14 grades, and by carrying roller to 36 conveyances, be cut off simultaneously.In addition, the billet material film 12S that makes through cut-out be rotated cut 38 downstream carrying roller to the position of 36 conveyances to regulation.
Carrying roller to 36 in; The roller 36b that is connected to supporting mass Z of downside is common columned roller, and the roller of the forming face that is connected to inoranic membrane 14 of top is near the what is called band step roller 36a of end (perhaps the end) diameter greater than zone (middle section) diameter beyond it among the figure.
As previously mentioned, inoranic membrane 14 is thin and intensity is low, therefore sustains damage because of contacting with miscellaneous part etc. than being easier to.
But; Example as shown in Figure 3 is such; The roller of the forming face side that is connected to inoranic membrane 14 is made band step roller 36a, form the structure of the non-product area that cuts off after only being connected to, thus; Can suitably prevent breakage or the damage etc. of the inoranic membrane 14 of product area, make suitable product thereby can stablize.
In example shown in Figure 3; As above-mentioned with rectangular material film 12 cutting off on the width after processing billet material film 12S; Then; Shown in Fig. 3 (B), the width both ends of the material film 12S of billet are gone up at length direction (arrow a direction) cut off, process the functional film F of regulation shape.
The cut-out at these width both ends as an example, is to carry out through the shearing device 42 shown in Fig. 3 (C).
This shearing device 42 has two clippers 46 and constitutes with cutting apart roller 48.
Cut apart roller 48 and be the roller of the direction of paper (among the arrow a direction=Fig. 3 (C) perpendicular to) conveyance along its length with billet material film 12S, and be divided into the width two ends off-position the inboard central portion and width two ends off-position the outside this three part of outside portion cut apart roller.
Therefore; In illustrated example; Billet material film 12S is cut apart roller 48 conveyance along its length, and the assigned position at the width both ends is cut off by two clippers 46 along its length simultaneously, thereby becomes the functional film F of section shape such, the regulation shape shown in Fig. 3 (B).
At this, in the manufacturing approach of functional film of the present invention, the off-position that makes material film 12 (12S) is the above temperature of glass transformation temperature (Tg) of supporting mass Z, thereby carries out the cut-out (cutting off processing/severing processing) of this material film 12.Need to prove that the above temperature of the Tg of supporting mass Z is the above temperature of Tg of the organic compound that forms supporting mass Z.
In the example shown in Fig. 3 (A); As an example; Through utilizing not shown heating arrangements that supporting station 40 is heated; Make the off-position of material film 12 become the above temperature of Tg of supporting mass Z, utilize rotary cutter 38 that material film 12 broad ways are cut off, make billet material film 12S.In addition; In the example shown in Fig. 3 (C); As an example, through utilizing not shown heating arrangements following cutter 46b is heated, make the off-position of billet material film 12S become the above temperature of Tg of supporting mass Z; Utilize clipper 46 that the width end of the material film S of billet is cut off along its length, process functional film F.
Manufacturing approach of the present invention is through having such formation; Can suppress significantly can stably make the functional film of performance regulation performance because of cut-out produces fracture or crackle and then the peeling off etc. of the inoranic membrane 14 that causes because of this fracture etc. on inoranic membrane 14.
As previously mentioned, inoranic membrane 14 intensity that form on as the material film 12 of functional film are low and crisp, and generally thinner.Therefore, when cutting into the regulation shape, meeting generation fracture or crackle near cut-out portion (cut-out line).In addition, because the connecting airtight property of inorganic compound and organic compound is not so high, therefore when this fracture waits binding, produce peeling off of inoranic membrane 14 etc.
In functional film, if on the inoranic membrane 14 that embodies as the function of purpose, produce fracture or peel off etc., then functional film just can't be brought into play the function as purpose.For example, if air blocking thin film, when the choke film at periphery had fracture to wait, steam can pass through from the part of this fracture, therefore can not get the gas barrier property as purpose.
With respect to this; In manufacturing approach of the present invention; Become the above temperature of Tg of supporting mass Z through the off-position that when cutting off, makes material film 12 (12S), thereby suppress because of the fracture of cutting off near the inoranic membrane 14 that produces, off-position (cut-out line) is significantly etc.
At this, shown in the flat 4-372396 communique of TOHKEMY 2001-337411 communique or TOHKEMY etc., in that being cut off, bar adds man-hour, and or be cut off thing to the cutter that cuts off and heat.
Described heating/cut-out is to be object with the tablet that is only formed by organic compound; The corresponding heating of softening point with polyolefin resin film of the flat 4-372396 communique record of heating that the Tg with image formation layer that is put down in writing by TOHKEMY 2001-337411 communique is corresponding or TOHKEMY also clearly can be known; With because of cut-out easily the film that maybe will protect of the film (layer) of damage as object cut tablet is heated to be the temperature corresponding with their rerum natura.
With respect to this; Manufacturing approach of the present invention with material film 12 with the supporting mass Z that forms by organic compound and inoranic membrane 14 as object; It is not the inoranic membrane 14 that heats generations such as wanting to prevent to rupture; But the off-position of material film is heated to be the corresponding temperature of Tg with the supporting mass of material film (functional film), prevent the fracture of inoranic membrane 14 etc. thus.
The heating of this off-position is based on the diverse following technical conceive of the heating that is cut off thing or cutter in processing with the cut-out of prior art.
As previously mentioned, the inoranic membrane 14 of embodiment predetermined function such as choke film or antireflection film is becoming embrane method to form (film forming) through gas phases such as plasma CVD method, sputtering method, vacuum evaporations under the situation mostly.
As previously mentioned, when becoming embrane method to form inoranic membrane 14 through this gas phase, in film forming, the film base material Zi that become that forms inoranic membrane 14 is heated.That is, have among the present invention of functional film of the supporting mass Z that plastic sheeting etc. forms by organic compound, when the formation of this inoranic membrane 14, also heat supporting mass Z in manufacturing.Under the situation of bulging film forming as shown in Figure 2, usually, cool off through drum cooler 20 and to be become film base material Zi, but can't avoid the heating of supporting mass Z.
Through this heating, supporting mass Z expands.In addition, expanded by the inoranic membrane 14 of film forming also Yin Re.At this, in supporting mass Z and the inoranic membrane 14 as inorganic compound as organic compound, thermal coefficient of expansion is very different.
Therefore, after the film forming, when cool to room temperature,, on supporting mass Z and inoranic membrane 14, produce mutually different internal stress because the thermal coefficient of expansion of supporting mass Z and inoranic membrane 14 is poor.That is, in material film 12, the internal stress that is in this supporting mass Z applies the state of unwanted power to inoranic membrane 14.
In addition, as previously mentioned, to being become film base material Zi to carry out conveyance and simultaneously under the situation of film forming, or hang film base material Zi and carry out under the situation of bulging film forming of film forming at volume on the drum 20 of that kind such as R to R shown in Figure 2, said internal stress becomes greatly.
At this, when cutting off material film 12 (and billet material film 12S, below, omit), near the off-position of material film 12 since the compressing of cutter etc. be out of shape, and, will be after the cut-out from the distortion recovery.
When cut-out has the material film of supporting mass Z and inoranic membrane 14, the internal stress different that supporting mass Z has and the power of material film 12 distortion and will be synthesized from the power that distortion is restored with inoranic membrane 14.Thus, inoranic membrane 14 is applied big power, near the off-position of inoranic membrane 14, produce fracture or crackle etc. in off-position.
With respect to this, in manufacturing approach of the present invention, when cutting off material film 12,, under the state of the internal stress of removing (inhibition) this supporting mass Z, cut off thus through off-position being heated to be more than the Tg of supporting mass Z.That is, form more than the Tg through the temperature with supporting mass Z, make the distortion when cutting off and be the state by inoranic membrane 14 dominations from being recovered to of distortion, the power that puts on inoranic membrane 14 reduces significantly.
The result is that power is applied on the inoranic membrane 14 owing to when cutting off material film 12, do not have improperly, therefore can reduce near the situation that off-position, produces fracture or crackle significantly.In addition, owing to be the heating severing, can also suppress to produce overlap or rubbish etc. from supporting mass Z or organic film 16 etc.
Therefore, manufacturing method according to the invention, the inoranic membrane 14 that can prevent to embody predetermined function is because of cut-out damages, and can stably make to have regulation shape (given size) and have the functional film F as the performance of purpose.
In manufacturing approach of the present invention, so long as the temperature of the off-position of material film 12 is above getting final product of Tg of supporting mass Z when cutting off.
But, if temperature is too high, then under situation, might produce harmful effect to these films with supporting mass Z or organic film 16 etc., and, the distortion of supporting mass Z etc. also might be produced.Therefore, during cut-out the temperature of the off-position of material film 12 preferably below the fusing point of supporting mass Z.
Consider that from above-mentioned viewpoint the temperature of the off-position of material film 12 is preferably at below Tg+20 ℃ of supporting mass Z, and is especially preferred at below Tg+10 ℃ of supporting mass Z.
At this; Material film 12 has the structure of the film that is formed by organic compound; Especially the material film 12c shown in the material film 12b shown in organic film 16 Fig. 1 (B) or Fig. 1 (C) is such, under the situation of the material film with structure that inoranic membrane 14 clipped by organic film 16, when cutting off; Also add the internal stress that this organic film 16 is had, more be easy to generate the fracture of inoranic membrane 14 etc. during cut-out.
Therefore; Have at material film 12 under the situation of the film that organic film 16 grades form by organic compound, preferably the temperature of the off-position of material film 12 is formed the temperature more than Tg soprano's among the film that is formed by organic compound of supporting mass Z and existence the Tg.Thus, near the fracture in the time of can suppressing to cut off better off-position etc.
Heating means for the off-position of material film 12 do not have special qualification.As an example, as shown in Figure 3, illustration has method that the cutter that cuts off is heated or pair method that the parts that contact with material film 12 heat when cutting off, and the method for utilizing direct heating raw films 12 such as heater.And then, can also suitably adopt and utilize laser (laser beam) off-position of material film 12 to be heated the method for cutting off simultaneously.
In addition, the heating of the heating of material film 12, the cutter that cuts off, as long as the heating of the parts that contact with material film 12 is through contact or contactless known method.
In addition, the shut-off mechanism of material film 12 also is not limited to the such rotary cutter of illustrated example or adopts the clipper of two discoid rotating knifes.
For example the clipper of guillotine type cutting knife or upper slitter with discoid rotating knife and fixing following cutter, adopt the shut-off mechanism of stamping-out known tablets such as (mould stamping-outs) of cutter of the shape of the functional film F that surrounds manufacturing to be used.
In manufacturing approach of the present invention, basically as long as when cutting off material film 12, off-position formed the temperature more than the Tg of supporting mass Z.
But if the temperature scope that to be the Tg of supporting mass Z above is excessive, then supporting mass Z receives heat waste, might produce degradation unfavorable condition under functional film F distortion or the mechanical strength.In addition, in the present invention,, near the off-position of material film 12, heat, and be otiose away from the heating of off-position for fracture of suppressing inoranic membrane 14 etc.
On the contrary,, then can not fully handle the zone that all are out of shape because of cut-out, also might fully suppress the fracture of the inoranic membrane 14 that the cut-out because of material film 12 causes etc. if temperature is the above narrow limits of Tg of supporting mass Z.
Therefore, in the present invention, be schematically shown like Fig. 4, with figure on the direction of off-position (cutting direction/the cut-outs line) L-orthogonal shown in the chain-dotted line, regional w1 and w2 that the temperature of material film 12 is made as more than the Tg of supporting mass Z are preferably 2～10mm.
Thus, can fully suppress the generation of fracture etc. of the inoranic membrane 14 of off-position, can also suitably prevent that the damage of supporting mass Z that heat causes etc. is expanded on a large scale simultaneously.
In example shown in Figure 3, rectangular material film 12 is cut off on width, cut off the both ends of width afterwards, thereby process the functional film F of regulation shape.But the present invention is not limited to this, also can be earlier with clipper etc. will rectangular material film 12 width two end-grain cutting fall cut-out and process the functional film F of regulation shape on width afterwards.
But, be left at last through the end of the width that will egress falls, can make the conveyance that contacts with this part or be treated as possibility, can prevent because of the damage that contacts the inoranic membrane 14 that causes with product area etc.Therefore, as shown in Figure 3, preferred on width, the cut-out earlier carried out the cut-out of width end at last.
In addition, above example is to make the functional film of regulation shape through rectangular material film is cut off on width and two ends length direction, but the invention is not restricted to this.For example, can also rectangular material film only be cut off the functional film of making the regulation shape on width.
And then, can also use the material film of section shape, make the functional film of regulation shape through this material film being carried out once above cut-out.
More than the manufacturing approach of functional film of the present invention is specified, but the invention is not restricted to above-mentioned example, in the scope that does not break away from purport of the present invention, can also carry out various improvement and change.
For example, the functional film of the section shape of manufacturing of the present invention is not limited to rectangles such as square or rectangular, can also be used as different shapes such as shape circular or that have a curvilinear limit.
[embodiment]
Below, enumerate specific embodiment of the present invention, illustrate in greater detail the present invention.
[embodiment 1]
Go up at supporting mass Z such shown in Fig. 1 (B), that width is 1000mm and to form the organic film 16a/ of substrate inoranic membrane 14/ organic film 16b and constitute material film 12, this material film 12 is rolled into web-like, form film rolling 34, prepare this film rolling 34.
Supporting mass Z adopts is that thickness is the PET film (Tg:80～90 ℃) of 100 μ m.
Organic film 16 is processed by following mode: modulation begins agent with acrylic ester monomer and photopolymerization and is dissolved in the coating in the organic solvent, and with coating machine with this coating coating and dry, utilize ultraviolet ray that this is filmed afterwards and harden and process film.The thickness of the organic film 16a of substrate and organic film 16b is 1000nm.Need to prove that the formation of organic film 16 is that the device through R to R carries out.
In addition, inoranic membrane 14 is that thickness is the alumina layer of 50nm.The formation of inoranic membrane 14 is to use carrying out shown in Figure 2 based on the film formation device of the bulging film forming of R to R and carry out through reactive sputtering.
At first, adopted the shearing device of rotary cutter 28 such shown in Fig. 3 (A) on width, to cut off this film rolling 34 utilizations, processing length is the billet material film 12S of 500mm (width 1000mm).
Cut-out is through by being arranged on the inner sheath heaters (sheath heater) of supporting station 40 supporting station 40 being heated, and the temperature of the off-position of material film 12 is heated to 100 ℃ carries out.Need to prove that the temperature of the off-position of material film 12 is measured through sheath cover insulation thermocouple (sheath thermo couple).
Then, use shearing device 24 such shown in Fig. 3 (C), the two ends of the width of billet material film 12S are cut off in the longitudinal direction, make the functional film (air blocking thin film) of the rectangle of 500 * 600mm.
Cut-out is through by infrared lamp heating cutter 46d down, the temperature of the off-position of billet material film 12S is formed 100 ℃ carry out.Need to prove that the temperature of the off-position of billet material film 12S is measured through the radiation thermometer.
[embodiment 2]
Supporting mass Z is changed into the PEN film (Tg:120 ℃) of thickness 100 μ m, and then, be 130 ℃ with the temperature change of the off-position of material film 12 and billet material film 12S, in addition, likewise make functional film with embodiment 1.
[comparative example 1, comparative example 2]
With the temperature change of the off-position of material film 12 and billet material film 12S is 30 ℃ (comparative examples 1) and 60 ℃ (comparative example 2), in addition, likewise makes functional film with embodiment 1 (supporting mass Z=PET).
[comparative example 3, comparative example 4]
With the temperature change of the off-position of material film 12 and billet material film 12S is 100 ℃ (comparative examples 3) and 60 ℃ (comparative example 4), in addition, likewise makes functional film with embodiment 2 (supporting mass Z=PEN).
[evaluation]
Through observing and estimate the crack conditions of inoranic membrane 14 near visual and light microscope (500 times) the off-position to the functional film of making.
Be evaluated as zero with what microscope also can't be confirmed to rupture
Though visually can't confirm as fracture, can confirm as the △ that is evaluated as of fracture by microscope,
Visual also can confirm as being evaluated as of fracture *.
The result is in below table 1 expression.
[table 1]
| Supporting mass | The off-position temperature | Estimate | |
| Embodiment 1 | PET | 100℃ | ○ |
| Embodiment 2 | PEN | 130℃ | ○ |
| Comparative example 1 | PET | 30℃ | × |
| Comparative example 2 | PET | 60℃ | △ |
| Comparative example 3 | PEN | 100℃ | △ |
| Comparative example 4 | PEN | 60℃ | × |
Shown in above-mentioned table 1, during cut-out,, can be manufactured near the off-position the high-quality functional film of fracture etc. according to the present invention of the temperature more than the Tg that off-position is made as supporting mass.
With respect to this, the temperature of off-position is that the following comparative example of Tg of supporting mass is all confirmed near off-position, to produce fracture because of cut-out.Especially in the temperature of off-position in the comparative example 1 and comparative example 4 of the Tg of supporting mass, through the visual fracture that just can confirm inoranic membrane 14.
According to above result, can clear and definite effect of the present invention.
Industrial applicibility
The present invention can be used for the manufacturing that air blocking thin film with the corresponding shape of purposes etc. has the functional film of desirable shape.
Claims (9)
1. the manufacturing approach of a functional film is characterized in that,
The material film of the inoranic membrane that will have the supporting mass that formed by organic compound and formed by inorganic compound cuts off through the temperature that off-position is formed more than the glass transformation temperature of said supporting mass, makes the functional film of regulation shape thus.
2. the manufacturing approach of functional film as claimed in claim 1 is characterized in that,
The heating of the cutter through cutting off said material film, based on laser to the severing of said material film and based on contact or contactless heating arrangements any mode to the heating of the said material film before cutting off, make the off-position of said material film form the above temperature of glass transformation temperature of said supporting mass.
3. according to claim 1 or claim 2 the manufacturing approach of functional film is characterized in that,
The scope of 2～10mm with on the cutting direction vertical direction that will begin from said off-position forms the temperature more than the glass transformation temperature of said supporting mass.
4. according to claim 1 or claim 2 the manufacturing approach of functional film is characterized in that,
Said material film is rectangular film,
, conveyance along its length carries out the formation of the inoranic membrane of said material film when forming the rectangular film of said inoranic membrane.
5. the manufacturing approach of functional film as claimed in claim 4 is characterized in that,
The state of hanging said rectangular film with volume on the side face of drum cylindraceous carries out the formation of said inoranic membrane.
6. the manufacturing approach of functional film as claimed in claim 4 is characterized in that,
Pull out said rectangular film from the film rolling that becomes web-like to form said rectangular film rolling, in conveyance along its length, carry out the formation of said inoranic membrane, and the rectangular film that will be formed with said inoranic membrane is rolled into web-like once more.
7. according to claim 1 or claim 2 the manufacturing approach of functional film is characterized in that,
Said material film is rectangular film,
Through this rectangular material film being carried out make the functional film of said regulation shape perpendicular to the cut-out on the length direction at cut-out on the width of length direction and said width both ends.
8. according to claim 1 or claim 2 the manufacturing approach of functional film is characterized in that,
The temperature of the said off-position when cutting off is the following temperature of fusing point of said supporting mass.
9. according to claim 1 or claim 2 the manufacturing approach of functional film is characterized in that,
Said inoranic membrane becomes the embrane method film forming through gas phase.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010194912A JP2012051061A (en) | 2010-08-31 | 2010-08-31 | Method for forming functional film |
| JP2010-194912 | 2010-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102380888A true CN102380888A (en) | 2012-03-21 |
Family
ID=45820929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102505045A Pending CN102380888A (en) | 2010-08-31 | 2011-08-29 | Method for producing functional film |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2012051061A (en) |
| KR (1) | KR20120021201A (en) |
| CN (1) | CN102380888A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109227756A (en) * | 2018-09-30 | 2019-01-18 | 金群荣 | Dental floss device melts line apparatus |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101350209B1 (en) * | 2013-07-30 | 2014-01-23 | 송해용 | Film slitting apparatus |
| JP6983039B2 (en) * | 2016-11-29 | 2021-12-17 | 住友化学株式会社 | Gas barrier film and flexible electronic device |
-
2010
- 2010-08-31 JP JP2010194912A patent/JP2012051061A/en not_active Withdrawn
-
2011
- 2011-08-22 KR KR1020110083302A patent/KR20120021201A/en not_active Application Discontinuation
- 2011-08-29 CN CN2011102505045A patent/CN102380888A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109227756A (en) * | 2018-09-30 | 2019-01-18 | 金群荣 | Dental floss device melts line apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012051061A (en) | 2012-03-15 |
| KR20120021201A (en) | 2012-03-08 |
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Application publication date: 20120321 |