CN102791466A - Tenter apparatus, method for removing foreign substances in tenter apparatus, and equipment for producing film from solution - Google Patents
Tenter apparatus, method for removing foreign substances in tenter apparatus, and equipment for producing film from solution Download PDFInfo
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- CN102791466A CN102791466A CN2011800131375A CN201180013137A CN102791466A CN 102791466 A CN102791466 A CN 102791466A CN 2011800131375 A CN2011800131375 A CN 2011800131375A CN 201180013137 A CN201180013137 A CN 201180013137A CN 102791466 A CN102791466 A CN 102791466A
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- 125000002801 octanoyl group Chemical group C(CCCCCCC)(=O)* 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
- B29C41/26—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length by depositing flowable material on a rotating drum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
- B29C55/08—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique transverse to the direction of feed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/20—Edge clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/0034—Polarising
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
In a pin tenter, a film is conveyed with both side ends thereof supported by pins (72) and pin plates (73). When the film is released from the pins (72) and the pin plates (73), the pins (72) and the pin plates (73) are delivered to a jet wind cleaning area (83). In the jet wind cleaning area (83), the pins (72) and the pin plates (73) are covered by a chamber (202). Jet wind is then directed against the pins (72) and the pin plates (73) in the chamber (202). This application of jet wind against the pins (72) and the pin plates (73) removes foreign substances from the pins (72) and the pin plates (73) such as liquefied or solidified film additives and punching scraps produced when the pins (72) are inserted into the film. The foreign substances are discharged from the chamber (202) through a suction nozzle.
Description
Technical field
The present invention relates on one side under the state of the both side ends that has supported film film to be stretched and make its dry tenter frame apparatus and the foreign matter removing method in the tenter frame apparatus on one side with certain rate of widening.The invention still further relates to the solution film-forming equipment that possesses this tenter frame apparatus.
Background technology
Polymer film since have excellent light transmission and flexibility also can the light weight filmization, thereby be used in many-side as the optical functional film.Wherein, the cellulose esters mesentery that has used acylated cellulose etc. also has obdurability and a low birefringence except aforesaid characteristic.This cellulose esters mesentery uses film to be representative with picture photosensitive, and the member of formation that is used as the liquid crystal indicator (LCD) that market in recent years enlarges to some extent is the diaphragm or the optical compensation films of polarizer.
As one of manufacturing approach of polymer film, enumerated solution film-forming method.Through this solution film-forming method, the dope that at first will comprise polymer and solvent is cast on the supporter from the curtain coating mould, forms casting films.Then, after casting films has self-supporting property, casting films is peeled off from supporter as moistening film.Then, utilize stenter to carry this moistening film with the state of the both side ends that keeps moistening film (below be called " limit portion ").In addition, in stenter,, on width, implement drying through the ejection dry wind in the portion of stretching limit for the moistening film in carrying.Thus, obtain film.Then, after the limit portion of film is blocked, utilize drying device further to carry out drying.Film through drying device is batched by devices for taking-up.
The drying of the moistening film in the stenter is carried out as follows: the both side ends of utilizing clip or pin etc. to support the unit supported film makes its walking, to the film ejection dry wind in this walking.On the other hand, supporting the unit is fixed on and makes its circulation walking on the annular movement body such as chain.Therefore, when utilize near the stenter outlet be exposed to reach a high temperature in the high temperature drying wind support the unit once more during supported film, owing to the boiling of the solvent in the film causes foaming, cause film to block sometimes.In addition, utilizing cooling gelization to make in its solution film-forming method, utilizing the needle plate supported film that possesses pin with self-supporting property.If the temperature of pin is very high, then when pin got in the film, the resin that covers the pin front end took place to solidify and peels off, and becomes the powder of cap shape, became to cause foreign matter fault or abrasive reason.In order to prevent this problem, before the supported film both side ends, make it come to cool off (for example with reference to patent documentation 1) to supporting the unit through cooling duct.
The prior art document
Patent documentation
Patent documentation 1: japanese kokai publication hei 9-85846 communique
Summary of the invention
Invent problem to be solved
But,, produced new problem because cooling duct is set.In stenter, be full of from the solvent gas of moistening film evaporation.Under the high-temperature atmosphere in stenter, plasticizer or UV agent (ultra-violet absorber) in the moistening film are evaporated with solvent, and they also have been mixed in the solvent gas.This solvent gas is gone together in cooling duct along with moving of clip or needle plate.Get into cooling duct solvent gas since the cooling of this cooling duct liquefaction takes place or solidify, as foreign matter attached on pin or the needle plate.In this foreign matter, comprise additives such as the plasticizer that much makes an addition in the dope or UV agent.When the accumulating amount of this foreign matter increases, needle plate is applied very big burden.And, when foreign matter be deposited in conveying used in the conveying of needle plate with deflector roll or its used bearing on the time, can become and can't stably carry out the conveying of film.
In the face of above problem, expect importing the plasticizer that is difficult to evaporate or UV agent, the baking temperature low temperatureization of stenter, the countermeasures such as dry long-timeization of stenter.But owing to seek these countermeasures, the quality that has produced the film after making changes or spends new problem such as unnecessary cost, and is not preferred.In addition, also expect using brush etc. to remove attached to the foreign matter on the needle plate.But, when carrying out the removing of foreign matter repeatedly, have brush to stop up or the foreign matter once removed once more attached to the first-class problem of needle plate.In addition, there is existence can't sweep the problems such as part of the foreign matter that falls to adhering to brush.
In stenter, utilize the solvent gas in this stenter such as recovery or absorption recovery that condense and reclaim solvent, the gas of having removed this solvent is delivered in the stenter once more.In the recovery of this solvent, reclaim plasticizer or UV agent etc.But, be zero even if use this method also can't make attached to the foreign matter amount on the needle plate etc.
In addition, expect using washer solvent that needle plate etc. is washed.But, clean result difference is not only arranged but also because the solvent of this washing usefulness will be as carrying the oil component with the lubricant of deflector roll or bearing to dissolve such problem.And, when this washer solvent evaporates, the such problem of recovery that must carry out this washer solvent is arranged in stenter.Therefore, the production line of stopper film termly before this, off line ground washs needle plate etc.
And then in pin stenter, except the foreign matter that in cooling duct, produces as stated, the foreign matters such as burr that the punching dregs that produce in the time of in inserting a needle into film remain in when perhaps pin being extracted from film around the pin also can adhere to, be deposited on the needle plate.This foreign matter and the above-mentioned foreign matter that in cooling duct, produces are same, and the stable feed that has not only hindered film also can become one of reason of the in-process pollution that causes in the pin stenter 13.Meanwhile, these foreign matters might influence the quality of film in sneaking into film the time.
The object of the present invention is to provide the foreign matter of the conveying that will hinder film to remove, make stable tenter frame apparatus of the conveying of film and foreign matter removing method and the solution film-forming equipment in the tenter frame apparatus.
The means that are used to deal with problems
In order to reach above-mentioned purpose, tenter frame apparatus of the present invention possesses the member of supporting, circulation moving part, stretching/drying section, chamber, injection wind ejection portion and foreign matter discharge portion.Support the both side ends that member supports the film in the conveying.The circulation moving part makes the above-mentioned member that supports between supporting between interval and release area, circulate mobile.The above-mentioned interval that supports is the above-mentioned interval that member supports above-mentioned film that supports.It between above-mentioned release area the above-mentioned interval that supports that supports the above-mentioned film of released.Stretching/drying section sprays dry wind simultaneously through with certain rate of widening the above-mentioned film that supports in the interval being stretched, and makes its drying.Through make above-mentioned support to be configured on the direction that above-mentioned film widens move gradually, carry out above-mentioned stretching.The above-mentioned member that supports during chamber covers between above-mentioned release area.Spray wind ejection portion through to through the above-mentioned member ejection injection wind that supports in the above-mentioned chamber, will remove attached to the above-mentioned foreign matter that supports on the member.Foreign matter discharge portion is expelled to above-mentioned foreign matter outside the above-mentioned chamber.
In tenter frame apparatus; Above-mentioned foreign matter is discharged quality award from the ministry and is selected in the above-mentioned foreign matter of suction in upstream side suction chamber and the downstream suction chamber; Above-mentioned upstream side suction chamber is arranged at the upstream side of above-mentioned injection wind ejection portion with respect to the above-mentioned moving direction that supports member; Above-mentioned downstream suction chamber is arranged at the downstream of above-mentioned injection wind ejection portion, is situated between by the discharge nozzle that is installed in above-mentioned upstream side suction chamber and downstream suction chamber the foreign matter that is aspirated to be discharged to outside the above-mentioned chamber with above-mentioned injection wind.Above-mentioned upstream side suction chamber and downstream suction chamber preferably are in negative pressure state.
Tenter frame apparatus preferably possesses the wind of injection circulation portions, sprays wind discharge portion and control part.Spray the wind circulation portions and reclaim, the injection wind that is reclaimed is back in the above-mentioned chamber, make and spray the wind circulation through will in above-mentioned chamber, being sprayed onto the above-mentioned injection wind that supports on the member.Spray the wind discharge portion and discharge the part of the injection wind that is reclaimed.Control part is through regulating the air quantity by the injection wind of above-mentioned injection wind discharge portion discharging, and control is sprayed onto the above-mentioned temperature that supports the injection wind on the member.
Solution film-forming equipment of the present invention possesses supporter and tenter frame apparatus.Above-mentioned supporter curtain coating has dope, forms casting films.Above-mentioned dope comprises polymer, solvent and additive.The moistening film of the above-mentioned casting films of conduct that above-mentioned tenter frame apparatus will be peeled off from above-mentioned supporter stretches at width, carries out drying through the ejection of dry wind simultaneously, processes film.Above-mentioned tenter frame apparatus comprises member, circulation moving part, chamber, injection wind ejection portion and the foreign matter discharge portion of supporting.Supporting member supports the both side ends of the film in carrying.The circulation moving part makes the above-mentioned member that supports between supporting between interval and release area, circulate mobile.The above-mentioned interval that supports is the above-mentioned interval that member supports above-mentioned film that supports.It between above-mentioned release area the above-mentioned interval that supports that supports the above-mentioned film of released.The above-mentioned member that supports during chamber covers between above-mentioned release area.Spray wind ejection portion through to through the above-mentioned member ejection injection wind that supports in the above-mentioned chamber, foreign matter is removed from above-mentioned supporting the member.Foreign matter discharge portion with above-mentioned foreign matter along with above-mentioned injection wind is expelled to outside the above-mentioned chamber together.
Above-mentioned foreign matter comprises above-mentioned additive through liquefying or solidifying the material that forms.
Above-mentioned foreign matter be included in beginning or discharge in above-mentioned dregs that produced when supporting the supporting of member and the burr at least any.
In solution film-forming equipment, above-mentioned tenter frame apparatus preferably comprises separated part and has a down dip pipe arrangement.Separated part is separated above-mentioned foreign matter with above-mentioned injection wind.Have a down dip pipe arrangement so that be provided with to the mode that above-mentioned separated part reduces gradually from above-mentioned foreign matter discharge portion, will deliver to above-mentioned separated part from the foreign matter of above-mentioned foreign matter discharge portion.
In solution film-forming equipment, above-mentioned tenter frame apparatus preferably comprises sprays wind circulation portions, injection wind discharge portion and control part.Spray the wind circulation portions and reclaim, the injection wind that is reclaimed is returned in the above-mentioned chamber, make and spray the wind circulation through will in above-mentioned chamber, being sprayed onto the above-mentioned injection wind that supports on the member.Spray the wind discharge portion and discharge the part of the injection wind that is reclaimed.Control part is through to being regulated by the air quantity of the injection wind of above-mentioned injection wind discharge portion discharging, and control is sprayed onto the above-mentioned temperature that supports the injection wind on the member.Above-mentioned control part is controlled to be the temperature of the fusing point that surpasses above-mentioned additive with the temperature of above-mentioned injection wind and is lower than the scope of the heat resisting temperature of the various device in the above-mentioned tenter frame apparatus.
The temperature of above-mentioned injection wind preferably is controlled to be more than 49 ℃ and the heat resisting temperature of the various device that above-mentioned tenter frame apparatus is interior is below 120 ℃.
Above-mentioned tenter frame apparatus is preferably has pin and the needle plate that is embedded with a plurality of these pins as the above-mentioned pin stenter that supports member.
Foreign matter removing method in the tenter frame apparatus of the present invention possesses the mobile step of circulation, stretching/drying section step, injection wind ejection step and foreign matter and discharges step.Circulation is moved in the step, makes the above-mentioned member that supports between supporting between interval and release area, circulate mobile.The above-mentioned interval that supports is to utilize to support the interval that member supports the both side ends of the film in carrying.Be to discharge to utilize the above-mentioned interval that supports that member carries out above-mentioned film that supports between above-mentioned release area.In the stretching/drying section step, the above-mentioned film that supports the interval is stretched, spray dry wind simultaneously, thereby be dried with certain rate of widening.Above-mentioned stretching is moved gradually on the direction that above-mentioned film is widened and is carried out through making the above-mentioned member that supports.Spray in the wind ejection step, support through above-mentioned in covering between above-mentioned release area in the chamber of member, remove being attached to the above-mentioned foreign matter that supports on the member to spraying wind through the member ejection that supports in the above-mentioned chamber.Foreign matter is discharged in the step, and above-mentioned foreign matter is discharged to outside the above-mentioned chamber.
The effect of invention
Can the foreign matter of the conveying obstacle that becomes film be removed through the present invention, make the conveying of film stable.
Description of drawings
Fig. 1 is the sketch map of expression solution film-forming equipment.
Fig. 2 is the vertical view of expression pin stenter of the present invention.
Fig. 3 is the front view of expression pin stenter of the present invention.
Fig. 4 is the cutaway view of guide rail, guide cover and needle rack.
Fig. 5 is the cutaway view of guide rail, guide cover and needle rack of interlocking pattern of the interlock ditch of expression sprocket and needle rack.
Fig. 6 is the VI-VI line cutaway view of Fig. 3.
Fig. 7 is the VII-VII line cutaway view of Fig. 3.
Fig. 8 is the VIII-VIII line cutaway view of Fig. 3.
Fig. 9 is the IX-IX line cutaway view of Fig. 3.
Figure 10 is the cutaway view of guide rail, guide cover and needle rack in expression the 1st cooled region.
The specific embodiment
The 1st embodiment of the present invention is described.As shown in Figure 1, solution film-forming equipment 10 is made up of curtain coating chamber 11, transfer portion 12, pin stenter 13, clip stenter 14, trimming device 15, drying device 16, cooling device 17 and devices for taking-up 18.
Possess in the curtain coating chamber 11 feed head 21, curtain coating cylinder 22, curtain coating mould 23, stripper roll 26, condenser (condenser, condenser) 27 with retracting device 28.Feed head 21 is sent into the dope from dope manufacturing equipment 20.Curtain coating cylinder 22 is supporters of curtain coating dope.Curtain coating mould 23 is cast to curtain coating cylinder 22 with dope.Stripper roll 26 is peeled off the casting films on the curtain coating cylinder 22 24 as moistening film 25.27 pairs of condensers are by the liquefaction of condensing of the solvent gas of casting films 24 and 25 evaporations of moistening film.Retracting device 28 reclaims the solvent that has liquefied.In addition, on curtain coating cylinder 22, connect heat-conducting medium feedway (omitting diagram).Through heat-conducting medium being supplied to the inside of this heat-conducting medium feedway, be adjusted to the surface temperature of curtain coating cylinder 22 temperature required.In addition, the register 30 that is used to regulate this internal temperature is installed on curtain coating chamber 11.
Be formed with the runner of dope in the inside of feed head 21.Decompression chamber 32 is installed on curtain coating mould 23.32 pairs of this decompression chamber reduce pressure from mouthful flows that arrive the dope of curtain coating cylinder 22 (below be called " the drop ") rear that shoots out of curtain coating mould 23, make drop become stable with respect to the contact of curtain coating cylinder 22.Big envelope (omitting diagram) is installed in the decompression chamber 32, decompression chamber 32 is adjusted to required temperature.
On transfer portion 12, be provided with a plurality of rolls 35.These rolls 35 will be delivered to pin stenter 13 from the moistening film 25 that curtain coating cylinder 22 is peeled off.Below, with the throughput direction of this moistening film 25 as the A direction.Above the transport path of moistening film 25, be provided with blower 36.36 pairs of moistening film 25 ejection dry winds of this blower promote the drying of moistening film 25.
The limit portion that pin stenter 13 inserts the needle to moistening film 25 keeps, and under the state of this limit portion of maintenance, carries moistening film 25.In the pin stenter 13,, enlarge the width of moistening film 25 with certain rate of widening through stretching limit portion on width.In addition,, see dry wind off, be heated to required temperature, promote dry by dry catheter 52,53 (with reference to Fig. 3) for this moistening film 25.Dry wind dry wind EGR 60 will adsorb recovery when from the dry wind of being seen off by dry catheter 52,53, the absorption of solvent or plasticizer being reclaimed after is back to dry catheter 52,53.
Possess a plurality of rolls 67 in the inside of drying device 16, film 37 is carried dry on one side on one side through roll 67.In this drying device 16, be located at absorbing recovery device 69 absorption in drying device 16 outsides from the solvent gas of film 37 generations and reclaim.Utilize absorption to reclaim the gas of having removed solvent and be back to drying device 16 once more.The film 37 that comes out from drying device 16 is sent to cooling device 17, in this cooling device 17, is cooled to roughly room temperature.In addition, trimming device also can be arranged on the outlet of pin stenter 13, after limit portion is blocked, it is delivered to the clip stenter.
Devices for taking-up 18 possesses volume core 70, and the film 37 that comes out from cooling device 17 batches on volume core 70 with the roller shape.In addition, devices for taking-up 18 possesses pressure roller 71, while this pressure roller 71 is regulated to batch to press film 37 is batched.
Like Fig. 2 and shown in Figure 3; Pin stenter 13 is gone up at its width (below be called " B direction ") with the percentage elongation of regulation when will this moistening film 25 on the A direction, carrying and is stretched under the state of the both side ends that supports moistening film 25 (limit portion) 25a.Pin stenter 13 possesses brush roll 40, dust arrester 42, guide rail 44, sprocket wheel 46～48, dry catheter 52,53, the guide cover (conduit) 54 and needle rack 58 that pin inserts usefulness.
As shown in Figure 4, guide cover 54 covers the part of guide rail 44a, 44b and needle rack 58.Upper surface in the inside of guide cover 54 is equipped with guide rail 44a, at its lower surface guide rail 44b is installed.Needle rack 58 is configured between guide rail 44a and the guide rail 44b.In addition, the direction of travel along needle rack 58 is formed with slit 54a on guide cover 54.The member of stating behind this slit 54a quilt 75 that keeps out the wind covers, and makes inertness gas or the cooling airs delivered in the guide cover 54 can not leak.In addition, as shown in Figure 5, being provided with near the guide cover 54 the position of sprocket wheel 46, be formed for the slit 54b that sprocket wheel 46 is got into.For being provided with near the guide cover 54 the position of sprocket wheel 47, also being same, thereby omitting explanation.
As shown in Figure 4, needle rack 58 is made up of pin 72, needle plate 73, rack body 74, the member 75 that keeps out the wind, deflector roll 76～79.Utilize pin 72 and needle plate 73 to constitute and support member.Pin 72 is embedded on the needle plate 73 so that predetermined distance is a plurality of.This needle plate 73 is fixed on the windshied part 75a of the member 75 that keeps out the wind.In addition, on the side of rack body 74, be formed with and be used to support the jut 74a of member 75 of keeping out the wind.On this jut 74a, be fixed with the member 75 that keeps out the wind.In addition, on the central portion of the lower surface of rack body 74, be formed with and the tooth of sprocket wheel 46,47, the 48 interlock ditch 74b of interlock mutually.
The member 75 that keeps out the wind is situated between and is fixed by the slit 54a of guide cover 54 and the jut 74a of rack body 74.In addition, this member 75 that keeps out the wind possesses the windshied part 75a that on direction up and down, stretches to cover slit 54a, and windshied part 75a hides the slit 54a of guide cover 54.Through this windshied part 75a, prevent to comprise the inside that invades guide cover 54 from the dry wind of the solvent gas of moistening film 25 evaporations.In addition, windshied part 75a after when stating steaming zone 82 (with reference to Fig. 7) and locating that pin 72 and needle plate 73 carried out steaming, prevent that this steam from entering into guide cover 54 inside.
On the leading section of the direction of travel of each rack body 74 and rearward end, be provided with the connection carriage that interconnects each rack body 74.Connect on the carriage at this, the connection pin is installed in the horizontal direction.Therefore, connect each rack body 74 owing to be situated between by connecting pin, thereby as shown in Figure 3 can in vertical plane, the walking moved.In addition, also can replace interconnecting block rack body and constituting needle rack, use chain to constitute needle rack with the connection pin.
As shown in Figure 3, on pin stenter 13,, be provided with gas clean-up zone 81, steaming zone 82, spray wind washing zone the 83, the 1st cooled region the 84, the 2nd cooled region 86 along the direction of travel of the needle rack that supports 58 that discharges moistening film 25.The major part of the foreign matter of removing through washing in steaming zone 82 and the injection wind washing zone 83 comprises from the contained composition of solvent gas of moistening film 25 evaporations.As the contained composition of solvent gas; Except plasticizer such as TPP (triphenyl phosphate), BDP (phosphoric acid xenyl diphenyl ester), polyester system or BTA be the additive of dope of UV agent such as raw material and so on through liquefaction or solidify the composition that forms, the punching dregs that produce when particularly inserting a needle in the film in addition or remain in when pin extracted from film pin around burr etc.In addition, in foreign matter, comprise the optical characteristics conditioning agent through liquefying or solidifying the material that forms.Through removing this foreign matter, become and can not hinder of the conveying of moistening film to needle rack 58.Meanwhile, can prevent that the in-process in the pin stenter 13 from polluting, can prevent also that in addition foreign matter is blended in the moistening film 25.
As shown in Figure 6, the nozzle 90 that air feed uses and the discharge pipe 91 of air-breathing usefulness are installed on the guide cover 54 that is positioned at gas clean-up zone 81.The suction hole that blows out hole and discharge pipe 91 of nozzle 90 is respectively towards the inside of guide cover 54.In addition, gas clean-up zone 81 is provided with nitrogen supply unit 94, aspirator 95, filter 96.Nitrogen supply unit 94 is connected on the nozzle 90.Aspirator 95 is connected on the discharge pipe 91.In addition, aspirator 95 Jie are linked to each other with nitrogen supply unit 94 by filter 96.
When carrying out gas clean-up, nitrogen is conducted to nozzle 90 from nitrogen supply unit 94.This nitrogen Jie is conducted in the guide cover 54 by the hole that blows out of nozzle 90.Through blowing out nitrogen,, guide cover 54 pressure inside will remove when rising attached to rack body 74, deflector roll 76～79 and guide rail 44a, the last foreign matter of 44b by nozzle 90.Aspirator 95 is situated between and gas is carried out in the guide cover 54 of pressurized state air-breathingly by the suction hole of discharge pipe 91, aspirates being trapped in these guide cover 54 inner foreign matters simultaneously.Filter 96 is from being removed foreign matter the gas of aspirator 95 suctions.To remove the nitrogen of this foreign matter then and deliver to nitrogen supply unit 94.
In this gas clean-up zone 81, the zone of maintenance that has particularly discharged the 25a of limit portion of moistening film 25 is the extra high zone that becomes of the concentration at pin stenter 13 internal solvent gases.Therefore, improve guide cover 54 pressure inside in advance, can prevent that solvent gas from entering into guide cover 54 inside through the air feed that utilizes nitrogen.In addition, even if the hypothesis solvent gas enters in the guide cover 54 this solvent gas through liquefaction or solidify the material that forms as foreign matter attached to deflector roll 76～79 on, utilize the ejection of nitrogen also can above-mentioned foreign matter be removed.Then, because this foreign matter after removing is discharged to outside the guide cover 54 through aspirator 95, thereby the material that hinders needle rack 58 walkings can not be present in guide cover 54 inside.Thus, needle rack 58 can stably be walked along guide rail 44.
In addition, gas clean-up is not only carried out in the conveyor zones of moistening film 25, also can in the whole zone that needle rack 58 is walked, carry out.In addition, discharge pipe 91 is arranged on the opposition side with nozzle 90 corresponding positions and guide cover 54, but discharge pipe 91 can be provided with away from nozzle 90 on the direction of travel of needle rack 58 also.At this moment, through making the position of drain position offset nozzle 90, can efficiently the pressure in the guide cover 54 be set at and be higher than the tentering unit room.In addition, nozzle 90 and discharge pipe 91 can be in gas clean-up zone 81 with suitable spacing on a plurality of direction of travel that are arranged on needle rack 58.
As shown in Figure 7, on steaming zone 82, be provided for spraying the nozzle 120a～120c of steam.Nozzle 120a blows out the direction of hole towards pin 72 and needle plate 73.In addition, nozzle 120b, 120c's blows out the direction of hole towards guide rail 44a, 44b, rack body 74, deflector roll 76～79.In addition, on steaming zone 82, be provided with steam supply unit 122.It is last that this steam supply unit 122 is connected nozzle 120a～120c.
When carrying out steaming, steam is conducted to nozzle 120a～120c by steam supply unit 122.This steam is ejected to pin 72 and needle plate 73 from the hole that blows out of nozzle 120a.In addition, steam is ejected to guide rail 44a, 44b, rack body 74, deflector roll 76～79 from the hole that blows out of nozzle 120b, 120c.Utilize the ejection of this steam, will remove attached to the foreign matter on pin 72, needle plate 73, guide rail 44a, 44b, rack body 74, the deflector roll 76～79.In addition, utilize the ejection of steam to remove foreign matter, but be not limited to this, can use the steam that contains the high liquid of the effect of removing foreign matter to wash.
As shown in Figure 8, in spraying wind washing zone 83, spray wind from 203, the 204 pairs of pins 72 of nozzle and needle plate 73 ejections that are disposed in the chamber 202.Through the ejection of the injection wind in this chamber 202, foreign matters such as punching dregs or burr are removed from pin 72 and needle plate 73.In addition, the foreign matter that is trapped in the chamber 202 is discharged to outside the chamber 202 through exhaust nozzle 240 (with reference to Fig. 9).
Spraying wind is situated between by supplying with pipe arrangement 206 supplies by sleeve pipe 200 outer air blasts 205.Supply with pipe arrangement 206 and be connected between air blast 205 and the chamber 202.Discharging wind sleeve pipe 200 in is discharged and be discarded to a part of spraying wind from supply with pipe arrangement 206 with pipe arrangement 208 supplying with midway with being equipped with in the pipe arrangement 206.On supplying with, be equipped with to regulate and be disposed to the triple valve 209 of discharging wind with the air quantity of the injection wind of pipe arrangement 208 with pipe arrangement 206 and the branch point of discharging wind with pipe arrangement 208.
The foreign matter that in chamber 202, produces is situated between and together is sent to centrifugal separator 212 with pipe arrangement 210 along with spraying wind by suction.Centrifugal separator 212 is arranged on than on the lower position of chamber 202, the suction that connects them with pipe arrangement 210 so that from chamber 202 begin to centrifugal separator 212 gradually the mode of step-down tilt.Flow through suction as stated, be not only solids such as comprising the punching dregs, also comprise the liquefaction things through liquefying such as TPP with the foreign matter in the pipe arrangement 210.Therefore, use pipe arrangement 210 to be descending, can not be trapped in suction midway, can positively deliver to centrifugal separator 212 with pipe arrangement 210 through the foreign matter that liquefies or solidify through making suction.
Centrifugal separator 212 will separate from foreign matter and the injection wind that suction is sent into pipe arrangement 210.Centrifugal separator 212 is a cyclone mode, will send into along the inner peripheral surface of cylindrical body 214 with the foreign matter and the injection wind of pipe arrangement 210 from suction.Foreign matter is because heavier than spraying wind, thereby in each rotational circle tubular main body 214 time, falls gradually with helical form through conducting oneself with dignity.Thus, foreign matter is separated with injection wind.The foreign matter that falls is situated between and is sent to recoverer 216 by the hopper 215 that is installed in cylindrical body 214 bottoms.On the other hand, the injection wind that separates with foreign matter is situated between and is sent to air blast 205 by pipe arrangement 218.In addition, in the foreign matter that is recovered portion's 216 recovery, TPP also can utilize through filtering again.
In chamber 202, be provided with the temperature sensor 219 of measuring internal temperature.Controller 220 is according to the aperture of the temperature control triple valve 209 in the chamber of being measured by temperature sensor 219 202.Control and deliver to discharging wind through controlling its aperture, thereby can regulate the temperature of the injection wind that comes out by chamber 202 interior nozzles 203,204 with the air quantity of the injection wind of pipe arrangement 208.Therefore, be disposed to discharging wind with in the pipe arrangement 208 through the part that only will spray wind, not only scalable is sprayed the temperature of wind, goes back the temperature in the adjustable chamber 202, thereby there is no need to be provided with other costs of cost such as heater or radiator.Here, when utilizing controller 220 to control, the preferred temperature of spraying wind of regulating reaches it to be in above the temperature of TPP fusing point and less than the heat resisting temperature of other equipment such as sleeve pipe 200, nozzle 203,204 or chamber 202.In addition, for example, the fusing point of TPP is 49 ℃, and the heat resisting temperature of equipment is 120 ℃.
As shown in Figure 9, chamber 202 possesses the wind of injection ejection portion 230, upstream side induction chamber 231 and downstream induction chamber 232.Spray wind 230 pairs of pins 72 of ejection portion and needle plate 73 ejection injection wind.Upstream side induction chamber 231 is arranged on the upstream side that sprays wind ejection portion 230 with respect to the moving direction P of pin and needle plate.Downstream induction chamber 232 is arranged on the downstream of spraying wind ejection portion 230.Spray wind ejection portion 230 and possess conduit 235,236, a plurality of nozzle 203a～203e, 204a～204e.Conduit 235,236 transports the injection wind from air blast 205.A plurality of nozzle 203a～203e, 204a～204e are arranged on the upper surface of lower surface and conduit of conduit 235,236, with injection vane 72 in the conduit 235,236 and needle plates 73 ejections.
A plurality of nozzle 203a～203e, 204a～204e are provided with along the moving direction P of pin 72 and needle plate 73 at certain intervals.Near the nozzle 203a of upstream side induction chamber 231,204a so that spray wind and almost be provided with along the mode that the moving direction P of pin 72 and needle plate 73 blows out.On the contrary, in addition nozzle 203b～203e, 204b～204e is so that spray wind and be provided with along the mode that the almost opposite direction Q of moving direction P with pin 72 and needle plate 73 blows out.In addition, the wind speed by the injection wind of nozzle 203a～203e, 204a～204e ejection is preferably more than 10 meters/minute.
So; Spray along the direction Q almost opposite from nozzle 203b～203e, 204b～204e through spraying wind with respect to the moving direction P of pin 72 and needle plate 73; With when wind is sprayed in moving direction P ejection, compare, pin 72 and needle plate 73 impulsive force when spraying wind and take place to collide increases.Thus, can easily remove attached to the foreign matter on pin 72 and the needle plate 73.In addition; Nonetheless will spray wind is ejected into from the downstream on the Q of upstream side direction; Because is the injection wind of the P direction of counter blow from nozzle 203a, the 204a ejection of upstream side the most with respect to the injection wind of this Q direction, so the impetus of the injection wind on the Q direction weakens.Thereby, spray wind maybe in this injection wind contained foreign matter might and go to outside the chamber 202 above upstream side induction chamber 231.
Shown in figure 10, pin 72 and needle plate 73 are covered by pin lid 130 in the 1st cooled region 84.On the side of this pin lid 130, be formed with supply hole 130a.The nozzle 132 that air feed is used is installed on the guide cover that is positioned at the 1st cooled region 84 54.This nozzle 132 blow out the inside of hole towards guide cover 54.In addition, be provided with cooling air supply unit 134 at the 1st cooled region 84, this cooling air supply unit 134 is connected in supply hole 130a.
In the 1st cooled region 84,, supply with cooling air from cooling air supply unit 134 so that the whole temperature inside of the inside of the guide cover 54 of the 1st cooled region 84 and pin lid 130 reaches roughly mode uniformly.The temperature of this cooling air for example be made as more than-30 ℃ and+temperature required below 30 ℃.Thus, the inside of guide cover 54 and pin cover below the fusing point that 130 whole temperature inside is TPP, promptly below 50 ℃.Therefore, when from moistening film 25 with vaporized TPP of solvent etc. be accompanied by needle rack 58 or needle plate 73 move in the 1st cooled region 84 time, this TPP etc. precipitate in pin 72 or the needle rack 58 etc.
In addition, utilize cooling air only pin 72 and needle plate 73 to be cooled off in the 2nd cooled region 86.The formation of the 2nd cooled region 86 is owing to except the pin lid is not set, and is same with the 1st cooled region 84, thereby omits explanation.In the 2nd cooled region 86, after being connected on the 1st cooled region 84, cool off, thereby the surface temperature of pin 72 and needle plate 73 reaches more than 35 ℃ and below 50 ℃.Through the temperature that makes pin 72 is the temperature of above-mentioned scope, and pin 72 becomes and facilitates penetration of the 25a of limit portion.
In this embodiment, during discharging, under the situation of the moistening film that do not overturn, carry from being retained to of the limit portion that begins moistening film.But, be not limited to this, Yi Bian on one side can also be the multistage mode of movement that moistening film carries that repeatedly overturns.
In this embodiment, in this embodiment, the present invention is applicable to pin stenter, but is not limited to this, also can the present invention be applicable to the clip stenter.In addition, pin stenter of the present invention is directed in the solution film-forming equipment, but and nonessentially be limited to this, also can be in the tablet manufacturing equipment of the tablet (web) beyond making film embodiment of the present invention.
The width of the film of making in this embodiment 37 is preferably more than the 1400mm and below the 2500mm.In addition, even if when the width of film 37 surpasses 2500mm, also can obtain effect of the present invention.In addition, the thickness of the film 37 through above-mentioned embodiment manufacturing is preferably more than the 20 μ m and below the 100 μ m, and more preferably 20 μ m are above and below the 80 μ m, and it is above and below the 70 μ m most preferably to be 30 μ m.
In the above-mentioned embodiment, the situation of using a kind of dope to make the film of individual layer is illustrated, but the present invention also can bring into play effect when forming the casting films of multi-ply construction.At this moment, can use simultaneously or the method for the dope of curtain coating aequum successively, not have special qualification.In addition; Structure from curtain coating mould, pressure-reducing chamber, supporter etc.; Altogether curtain coating, peel off the drying condition of method, stretching, each operation; Processing method, curl, [0617] paragraph that method for coiling to method for recovering solvents, the film recovery method of flatness after correcting at length is recorded in TOHKEMY 2005-104148 communique is to [0889] paragraph, the related invention of these records is also applicable to the present invention.In addition, the performance of the film of being accomplished, amount of crimp, thickness and their determination method are recorded in [1073] paragraph of TOHKEMY 2005-104148 communique to [1087] paragraph, and these put down in writing related invention also applicable to the present invention.
When at least one face of the film accomplished is implemented surface treatment, owing to can improve the bond degree with optical component such as Polarizer, thereby preferred.As surface treatment, for example can enumerate vacuum glow discharge processing, atmospheric plasma discharge processing, ultraviolet treatment with irradiation, Corona discharge Treatment, flame treatment, acid treatment, alkali treatment etc., preferably carry out at least a kind of processing in these.
When to be substrate be provided with required functional layer on its two faces or face with the film of being accomplished, can be used as various functional membranes and use.As functional layer, for example can enumerate antistatic backing, curing resin layer, anti-reflection layer, be prone to adhesive linkage, antiglare layer, optical compensating layer etc.For example, when anti-reflection layer was set, acquisition can prevent reflection of light and the antireflection film of high image quality is provided.About above-mentioned functions layer or formation method etc., [0890] paragraph that at length is recorded in TOHKEMY 2005-104148 communique is to [1072] paragraph, and these put down in writing related invention also applicable to the present invention.In addition, about the concrete purposes of polymer film, for example can enumerate in the utilization of [1088] paragraph that is recorded in TOHKEMY 2005-104148 communique in the liquid crystal watch showing devices such as the TN type of [1265] paragraph, STN type, VA type, OCB type, reflection-type etc.
The raw material of the dope of making through dope manufacturing equipment 20 then, below is shown.
When using cellulose esters as the raw material of dope, owing to can obtain the high film of transparency, thereby preferred.As cellulose esters, for example can enumerate Triafol T, cellulose acetate propionate, butyric acid acylated cellulose cellulosic low-grade fatty acid esters such as (cellulose acylate butyrate).Wherein,, preferably use acylated cellulose, more preferably use triacetyl cellulose (TAC) because transparency is high.In addition, the dope that uses in the above-mentioned embodiment comprises triacetyl cellulose (TAC) as polymer.When so using TAC, be the particle of 0.1～4mm more than the 90 quality % of preferred TAC.
As above-mentioned acylated cellulose, in order to obtain the higher film of transparency, preferred acyl group satisfies whole in the following formula (a)～(c) to the substitution value of cellulosic hydroxyl.A in the following formula, B represent the substitution value of acyl group with respect to the hydrogen atom in the cellulosic hydroxyl, and specifically, A is the substitution value of acetyl group, and B is that carbon number is the substitution value of 3～22 acyl group.
（a）2.5≤A+B≤3.0
（b）0≤A≤3.0
（c）0≤B≤2.9
The glucose unit that constitutes cellulosic β-1,4 key has free hydroxyl at 2,3 and 6.Acylated cellulose is that to utilize carbon number be that acyl group more than 2 is with the part of these hydroxyls or whole polymer (polymer) of forming of esterifications.The acyl substituted degree is represented the ratio of cellulosic hydroxyl generation esterification respectively for 2,3 and 6.Wherein, with the situation of 100% esterification as substitution value 1.
Total acidylate substitution value, be that the value of DS2+DS3+DS6 is preferably 2.00～3.00, more preferably 2.22～2.90, be preferably 2.40～2.88 especially.In addition, the value of DS6/ (DS2+DS3+DS6) is preferably more than 0.28, more preferably more than 0.30, is preferably 0.31～0.34 especially.Here, DS2 be the hydrogen of 2 hydroxyls in the glucose unit by the ratio of acyl substituted, DS3 be the hydrogen of 3 hydroxyls in the glucose unit by the ratio of acyl substituted, DS6 is that the hydrogen of 6 hydroxyls in the glucose unit is by the ratio of acyl substituted.
The acyl group that uses in the acylated cellulose can be merely a kind, also can use the acyl group more than 2 kinds.In addition, when using the acyl group more than 2 kinds, preferably wherein 1 be acetyl group.The hydroxyl that makes 2,3 and 6 is that DSA and the hydroxyl that makes 2,3 and 6 are when being DSB by the degree sum of the acyl substituted beyond the acetyl group by the substituted degree sum of acetyl group; The value of DSA+DSB is preferably 2.22～2.90, is preferably 2.40～2.88 especially.
In addition, DSB is preferably more than 0.30, is preferably more than 0.7 especially.And DSB wherein is the substituting group of 6 hydroxyls more than 20% preferably, more preferably more than 25%, further is preferably more than 30%, is preferably more than 33% especially.And then also the value of the DSA+DSB on 6 of preferred acylated cellulose is more than 0.75, further is preferably more than 0.80, is preferably the acylated cellulose more than 0.85 especially.When using this acylated cellulose, can modulate the very excellent dope of dissolubility.In addition, when using above-mentioned acylated cellulose, when using the chlorine-free solvent, can modulate and have the excellent dope of very excellent dissolubility, low viscosity and filterability.
Cellulose as the raw material of acylated cellulose can be the cellulose by any acquisition in velveteen, the cotton pulp.
Carbon number as acylated cellulose is the acyl group more than 2, can be aliphatic group, can be aryl also, does not have special qualification.For example, can enumerate cellulosic alkyl-carbonyl ester, alkenyl carbonyl ester, aromatic series carbonyl ester, aromatic series alkyl-carbonyl ester etc.And then, also can have substituted group respectively.As their preferred example, can enumerate propiono, bytyry, valeryl, caproyl, caprylyl, capryl, dodecane acyl group, tridecane acyl group, tetradecane acyl group, hexadecane acyl group, octadecanoyl, isobutyryl, uncle's bytyry, cyclohexane carbonyl, oleoyl, benzoyl, naphthyl carbonyl, cinnamoyl etc.Wherein, more preferably propiono, bytyry, dodecane acyl group, octadecanoyl, uncle's bytyry, oleoyl, benzoyl, naphthyl carbonyl, cinnamoyl etc., preferred especially propiono, bytyry.
In addition, [0140] paragraph that the details of spendable acylated cellulose is recorded in TOHKEMY 2005-104148 communique among the present invention is in [0195] paragraph, and these are put down in writing also applicable to the present invention.
The solvent that becomes the dope raw material preferably uses the organic compound that can dissolve used polymer.Dope among the present invention is owing to be meant through with polymer dissolution or the mixture that is scattered in the solvent to be obtained, thereby also can use the solvent low with the dissolubility of polymer.As the solvent that can preferably use, for example can enumerate aromatic hydrocarbons such as benzene or toluene; Halogenated hydrocarbons such as carrene or chloroform, chlorobenzene; Alcohol such as methyl alcohol, ethanol, normal propyl alcohol, n-butanol, diethylene glycol; Ketone such as acetone or MEK; Ester such as methyl acetate or ethyl acetate, propyl acetate; Ether such as oxolane or methyl cellosolve etc.Can use the mixed solvent of from these solvents, selecting the solvent more than 2 kinds to mix.Wherein, when using carrene, can obtain the excellent dope of solubility, can make the solvent evaporation in the casting films simultaneously at short notice, process film, therefore preferred.
As above-mentioned halogenated hydrocarbons, preferably using carbon number is 1～7 halogenated hydrocarbons.And; From with the intermiscibility of polymer, as viewpoints such as the mechanical strength of the fissility of the index of peeling off easy degree of the casting films of peeling off from supporter, film, optical characteristics, preferably using and in carrene, being mixed with a kind or multiple carbon number is the material that 1～5 alcohol forms.The content of alcohol all is preferably 2～25 weight % with respect to solvent, more preferably 5～20 weight %.As the object lesson of alcohol, can enumerate methyl alcohol, ethanol, normal propyl alcohol, isopropyl alcohol, n-butanol etc., wherein preferably use methyl alcohol, ethanol, n-butanol or their mixture.
Recently, for Min. ground suppresses the influence to environment, also proposed not use the solvent composition of carrene.For this purpose, preferred carbon number is that 4～12 ether, carbon number are that 3～12 ketone, carbon number are 3～12 ester, and preferably their is suitably mixed the back and use.These compounds can have ring-shaped structure, have the functional group of 2 above ethers, ketone and esters, promptly-O-,-CO-and-any compound among the COO-also can be used as solvent and uses.In addition, solvent can have other functional group such as alcohol hydroxyl group.Wherein, when having more than 2 kinds functional group, its carbon number so long as have in the prescribed limit of compound of any functional group gets final product, and does not have special qualification.
Also can add plasticizer, ultra-violet absorber (UV agent), anti-deterioration agent, lubricant in the dope, peel off known various additives such as promoter according to purpose.For example, can use phosphates such as triphenyl phosphate, phosphoric acid xenyl diphenyl ester as plasticizer is that phthalic acid esters such as plasticizer, diethyl phthalate are known various plasticizer such as plasticizer and flexible polyester polyurethane body.
In addition, in the dope to prevent that film is bonded to each other, or to regulate refractive index be purpose, preferably adds particulate.As this particulate, preferably use silica derivative.Silica derivative of the present invention also comprises silica, has the organic siliconresin of three-dimensional netted structure.Such silica derivative preferably uses its surface to carry out the silica derivative that alkylation is handled.The particulate of having implemented the processing of hydrophobizations such as alkylation processing is owing to the excellent dispersion with respect to solvent, thereby the situation modulated dope that can between particulate, not condense, and then makes film, thereby can make the film that planar defective is few, transparency is high.
As stated, as having carried out the particulate that alkylation is handled from the teeth outwards, for example can use as the surface and import Aerosil R805 (Japanese Aerosil (strain) system) that silica derivative that octyl group is arranged sells etc.Wherein, in order to obtain the high film of transparency when guaranteeing to add the effect of particulate, preferably the content with respect to the particulate of the solid constituent of dope reaches below 0.2%.And particulate is not in order to hinder passing through of light, and its average grain diameter is preferably below the 1.0 μ m, and more preferably 0.3～1.0 μ m is preferably 0.4～0.8 μ m especially.
As stated, in order to obtain the high polymer film of transparency, also preferably utilize TAC to modulate dope among the present invention as polymer.At this moment, with respect to the full dose of the dope behind mixed solvent or the additive etc., the ratio that contains TAC is 5～40 weight %.The ratio that more preferably contains TAC is 15～30 weight %, is preferably 17～25 weight % especially.In addition, the ratio that comprises additive (mainly being plasticizer) all is preferably 1～20 weight % with respect to the solid constituent that comprises contained polymer or other additives etc. in the dope.
Wherein, For solvent, plasticizer, ultra-violet absorber, anti-deterioration agent, lubricant, peel off promoter, optical anisotropy controlling agent, postpone for various additives such as inhibitor, dyestuff, remover and the particulate; [0196] paragraph that at length is recorded in TOHKEMY 2005-104148 communique is to [0516] paragraph, and these are put down in writing also applicable to the present invention.In addition; Utilized the manufacturing approach of the dope of TAC for conduct; For example write up is in [0517] of TOHKEMY 2005-104148 communique paragraph to [0616] paragraph similarly for the dissolving method of raw material, raw material, additive and adding method, filter method, deaeration etc., and these are put down in writing also applicable to the present invention.
Claims (12)
1. tenter frame apparatus, it possesses with lower member:
Support the film in the conveying both side ends support member;
Make the said circulation moving part that member circulates and moves that supports between supporting between interval and release area; Wherein, The said interval that supports is the said interval that member supports said film that supports, and is the said interval that supports that supports the said film of released between said release area;
The ejection dry wind makes its dry stretching/drying section through stretching the said film that supports in the interval with certain rate of widening when, and it moves gradually on the direction that said film is widened and carry out said stretching through making the said member that supports in advance;
The said chamber that supports member in covering between said release area;
Through spraying wind with the injection wind ejection portion of removing attached to the said foreign matter that supports on the member to support the member ejection through said in the said chamber; And
Said foreign matter is expelled to the outer foreign matter discharge portion of said chamber.
2. tenter frame apparatus according to claim 1; Wherein, Said foreign matter aspirates in said foreign matter discharge portion in upstream side suction chamber and downstream suction chamber; Said upstream side suction chamber is arranged at the upstream side of said injection wind ejection portion with respect to the said moving direction that supports member; Said downstream suction chamber is arranged at the downstream of said injection wind ejection portion, is situated between by the discharge nozzle that is installed in said upstream side suction chamber and downstream suction chamber the foreign matter that is aspirated to be discharged to outside the said chamber with said injection wind.
3. tenter frame apparatus according to claim 2, wherein, said upstream side suction chamber and downstream suction chamber are in negative pressure state.
4. tenter frame apparatus according to claim 1, it possesses:
Reclaim, the injection wind that is reclaimed be back to make in the said chamber spray the injection wind circulation portions that wind circulates through will in said chamber, being sprayed onto the said injection wind that supports on the member;
The injection wind discharge portion of the part of the injection wind that discharging is reclaimed; And
Air quantity through regulating the injection wind that is discharged by said injection wind discharge portion is controlled the said temperature controlling portion that supports the injection wind on the member that is sprayed onto.
5. solution film-forming equipment; It possesses supporter and tenter frame apparatus, and said supporter curtain coating has dope, forms casting films; Said dope comprises polymer, solvent and additive; Said tenter frame apparatus will be carried out drying as moistening film ejection through dry wind when width stretches of the said casting films of peeling off from said supporter, process film, and said tenter frame apparatus comprises with lower member:
Support the film in the conveying both side ends support member;
Make the said circulation moving part that member circulates and moves that supports between supporting between interval and release area; Wherein, The said interval that supports is the said interval that member supports said film that supports, and is the said interval that supports that supports the said film of released between said release area;
The said chamber that supports member in covering between said release area;
Through spraying wind and support the injection wind ejection portion that member is removed foreign matter from said to support the member ejection through said in the said chamber; And
Said foreign matter is discharged to the outer foreign matter discharge portion of said chamber with said injection wind.
6. solution film-forming equipment according to claim 5, wherein, said foreign matter comprises said additive through liquefying or solidifying the material that forms.
7. solution film-forming equipment according to claim 5, wherein, said foreign matter be included in beginning or discharge in said dregs that produced when supporting the supporting of member and the burr at least any.
8. solution film-forming equipment according to claim 5, wherein, said tenter frame apparatus comprises with lower member:
The separated part that said foreign matter is separated with said injection wind; And
So that be provided with, will deliver to the pipe arrangement that has a down dip of said separated part to the mode that said separated part reduces gradually from said foreign matter discharge portion from the foreign matter of said foreign matter discharge portion.
9. solution film-forming equipment according to claim 5, wherein, said tenter frame apparatus comprises with lower member:
Make the injection wind circulation portions of spraying the wind circulation in the said chamber through being sprayed onto in said chamber that the said injection wind that supports on the member reclaims and the injection wind that is reclaimed being back to;
The injection wind discharge portion of the part of the injection wind that discharging is reclaimed; And
Control the said temperature controlling portion that supports the injection wind on the member that is sprayed onto through regulating by the air quantity of the injection wind of said injection wind discharge portion discharging, said control part is controlled to be the temperature that surpasses said additive fusing point with the temperature of said injection wind and less than the scope of the heat resisting temperature of various device in the said tenter frame apparatus.
10. solution film-forming equipment according to claim 9, wherein, the various device heat resisting temperature that the temperature of said injection wind is controlled to be more than 49 ℃ and said tenter frame apparatus is interior is promptly below 120 ℃.
11. solution film-forming equipment according to claim 5, wherein, said tenter frame apparatus is to have pin and the needle plate that is embedded with a plurality of these pins as the said pin stenter that supports member.
12. the foreign matter removing method that tenter frame apparatus is interior, it possesses following steps:
Make the said member that supports between supporting between interval and release area, circulate mobile; Wherein, The said interval that supports is to utilize to support member to the interval that the both side ends of the film in carrying supports, and is to discharge to utilize the said interval that supports that member carries out said film that supports between said release area;
Spray dry wind simultaneously and make its drying through the said film that supports in the interval being stretched with certain rate of widening, wherein, said stretching through make said support to be configured in to move gradually on the direction that said film widens carry out;
Support through said in covering between said release area in the chamber of member spraying wind and remove being attached to the said foreign matter that supports on the member through the member ejection that supports in the said chamber; And
Said foreign matter is discharged to outside the said chamber.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010052842A JP5479165B2 (en) | 2010-03-10 | 2010-03-10 | Tenter device, method of removing foreign matter in tenter device, and solution casting apparatus |
| JP2010-052842 | 2010-03-10 | ||
| PCT/JP2011/054891 WO2011111598A1 (en) | 2010-03-10 | 2011-03-03 | Tenter apparatus, method for removing foreign substances in tenter apparatus, and equipment for producing film from solution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102791466A true CN102791466A (en) | 2012-11-21 |
| CN102791466B CN102791466B (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180013137.5A Expired - Fee Related CN102791466B (en) | 2010-03-10 | 2011-03-03 | Foreign matter removing method in tenter frame apparatus and tenter frame apparatus and solution film-forming equipment |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5479165B2 (en) |
| KR (1) | KR101587316B1 (en) |
| CN (1) | CN102791466B (en) |
| WO (1) | WO2011111598A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106256847A (en) * | 2015-06-16 | 2016-12-28 | 柯尼卡美能达株式会社 | The manufacture method of resin molding |
| CN111118771A (en) * | 2018-10-31 | 2020-05-08 | 日星机械工业株式会社 | Fiber drying and setting machine with automatic filtering device |
| CN114801014A (en) * | 2022-04-28 | 2022-07-29 | 宁波秦鼎材料科技有限公司 | Vacuum width-fixing stenter for vertical polyolefin foaming furnace |
| CN115463908A (en) * | 2021-06-10 | 2022-12-13 | 日星机械工业株式会社 | Inner cleaning device for chamber of tenter |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6280389B2 (en) * | 2014-02-21 | 2018-02-14 | 東レ・デュポン株式会社 | Method for producing polyimide film |
| TW202400399A (en) * | 2022-06-23 | 2024-01-01 | 日商東洋紡股份有限公司 | Method for producing film |
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| JPH1177719A (en) * | 1997-09-12 | 1999-03-23 | Konica Corp | Apparatus and method for producing cellulose triacetate film |
| CN101396864A (en) * | 2007-09-26 | 2009-04-01 | 富士胶片株式会社 | Pin tenter and solution casting method |
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| JPH11156937A (en) * | 1997-11-26 | 1999-06-15 | Unitika Ltd | Removing device of link stain in simultaneously, bixilally stretching machine |
| JP4733303B2 (en) * | 2001-07-17 | 2011-07-27 | 株式会社日本製鋼所 | Tenta oven device |
| JP5001197B2 (en) * | 2007-03-29 | 2012-08-15 | 富士フイルム株式会社 | Film drying method and apparatus, and solution casting method |
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2010
- 2010-03-10 JP JP2010052842A patent/JP5479165B2/en active Active
-
2011
- 2011-03-03 WO PCT/JP2011/054891 patent/WO2011111598A1/en active Application Filing
- 2011-03-03 KR KR1020127023419A patent/KR101587316B1/en active IP Right Grant
- 2011-03-03 CN CN201180013137.5A patent/CN102791466B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6371154U (en) * | 1986-10-27 | 1988-05-13 | ||
| JPH07252022A (en) * | 1994-03-14 | 1995-10-03 | Toray Ind Inc | Device and method for preventing stenter broken film from being caught in |
| JPH1177719A (en) * | 1997-09-12 | 1999-03-23 | Konica Corp | Apparatus and method for producing cellulose triacetate film |
| CN101396864A (en) * | 2007-09-26 | 2009-04-01 | 富士胶片株式会社 | Pin tenter and solution casting method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106256847A (en) * | 2015-06-16 | 2016-12-28 | 柯尼卡美能达株式会社 | The manufacture method of resin molding |
| CN106256847B (en) * | 2015-06-16 | 2020-06-23 | 柯尼卡美能达株式会社 | Method for producing resin film |
| CN111118771A (en) * | 2018-10-31 | 2020-05-08 | 日星机械工业株式会社 | Fiber drying and setting machine with automatic filtering device |
| CN111118771B (en) * | 2018-10-31 | 2022-03-04 | 日星机械工业株式会社 | Fiber drying and setting machine with automatic filtering device |
| CN115463908A (en) * | 2021-06-10 | 2022-12-13 | 日星机械工业株式会社 | Inner cleaning device for chamber of tenter |
| CN114801014A (en) * | 2022-04-28 | 2022-07-29 | 宁波秦鼎材料科技有限公司 | Vacuum width-fixing stenter for vertical polyolefin foaming furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5479165B2 (en) | 2014-04-23 |
| JP2011183724A (en) | 2011-09-22 |
| WO2011111598A1 (en) | 2011-09-15 |
| KR20130006611A (en) | 2013-01-17 |
| CN102791466B (en) | 2015-11-25 |
| KR101587316B1 (en) | 2016-02-02 |
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