WO2004052620A1 - 熱可塑性合成樹脂製シート又はフイルムの製造方法及びその装置 - Google Patents
熱可塑性合成樹脂製シート又はフイルムの製造方法及びその装置 Download PDFInfo
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- WO2004052620A1 WO2004052620A1 PCT/JP2003/015320 JP0315320W WO2004052620A1 WO 2004052620 A1 WO2004052620 A1 WO 2004052620A1 JP 0315320 W JP0315320 W JP 0315320W WO 2004052620 A1 WO2004052620 A1 WO 2004052620A1
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- Prior art keywords
- roller
- film
- synthetic resin
- sheet
- support
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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
- 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
- B29C55/18—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets by squeezing between surfaces, e.g. rollers
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/222—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length characterised by the shape of the surface
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/91—Heating, e.g. for cross linking
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
- B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
- B29C48/9145—Endless cooling belts
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92609—Dimensions
- B29C2948/92647—Thickness
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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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92923—Calibration, after-treatment or cooling zone
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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
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
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- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
-
- 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
- B29K2995/0037—Other properties
- B29K2995/0072—Roughness, e.g. anti-slip
- B29K2995/0073—Roughness, e.g. anti-slip smooth
-
- 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
- B29L2007/002—Panels; Plates; Sheets
Definitions
- the present invention relates to a method and apparatus for manufacturing a thermoplastic synthetic resin sheet or sheet that continuously forms a thin sheet made of a thermoplastic synthetic resin and has a smooth mirror surface.
- Japanese Patent Application Laid-Open No. H6-170919 is known.
- a cast drum for receiving a thermoplastic synthetic resin extruded from the nozzle into the gap and a first metal roll located above the cast drum are arranged as a pair on the downstream side of the extrusion nozzle of the T die.
- the peripheral surface of the first metal roll is covered with a rubber or an elastomer having elasticity, and the peripheral surface of the casting drum is paired with the peripheral surface of the casting drum on the downstream side from the approach point of the casting drum and the first metal roll.
- thermoplastic synthetic resin sheet or film There is a second metal roll that is in contact with it, and a metal endless belt is hung under a certain tension between these two metal rolls and the third metal roll.
- the metal endless belt is pressed against the drum, and in the area between the first and second metal rolls, the metal endless belt runs along the peripheral surface of the casting drum, and
- the film-shaped thermoplastic synthetic resin extruded in a molten state from above is cooled and pressed into a sheet shape between the two metal ports while being pressed in an arc shape between the cast drum and the corrosion-resistant metal endless belt.
- a method for producing a thermoplastic synthetic resin sheet or film is described.
- thermoplastic synthetic material extruded from this nozzle is provided downstream of the extrusion die of the T die.
- a cast drum for receiving the resin material in the gap and a first metal roll located above the cast drum are arranged as a pair, and the first metal roll is provided so as to be able to approach and separate from the cast drum.
- a second metal roll is disposed downstream of the point of approach of the cast drum and the first metal roll, and is in contact with the peripheral surface of the cast drum.
- the metal endless belt is hung under a certain tension between the metal ports, and in the area between the first and second metal rolls, the metal endless belt runs along the peripheral surface of the casting drum.
- the surface of the first metal hole for causing the cast drum to press the metal endless belt has a heat-resistant rubber or elastic elasticity.
- Japanese Patent Application Laid-Open No. 7-43070 discloses that a synthetic resin material continuously supplied and supplied from a die is rolled and cooled by a forming mechanism having a forming roller and is made of synthetic resin having a predetermined thickness.
- An apparatus for producing a synthetic resin sheet for molding a sheet is described.
- the forming mechanism in this manufacturing apparatus is composed of a forming roller rotatably supported on a forming base block, a melt roller supplied from a die in cooperation with a forming port by abutting and circulating on the outer peripheral surface of the forming roller.
- a pair of belt rollers supported by a slide frame with the front and rear intervals set and wrapped around the pair of belt rollers are arranged so as to face the outer peripheral surface of the forming roller along the outer peripheral surface of the forming roller.
- the molten synthetic resin material is rolled into a thin sheet made of synthetic resin.
- the apparatus disclosed in the above-mentioned Japanese Patent Application Laid-Open No. Hei 6-17909 makes it possible to produce a glossy thermoplastic synthetic resin sheet or film.
- the span between the third metal rolls is long,
- the metal endless belt which is hung under a certain tension between the belts, becomes long, and is manufactured by the welding of the seam of this metal endless belt and the damage caused by corrosion etc. on a part of this metal endless belt.
- the metal belt needs to be replaced when the thermoplastic synthetic resin sheet or film becomes uneven, but when the long metal endless belt has a large diameter and is removed from the metal roll and replaced.
- the seam of the metal endless belt is susceptible to corrosion because the welding material and the belt material are different materials, and the welded portion is rigid and heat-strained with other portions. Tended to be slightly different, and the smoothness tended not to be uniform with other parts.
- synthetic resin materials are classified according to their properties into two types: synthetic resin materials, such as acrylic, which are firmly fused to casting drums and forming rollers, and synthetic resin materials, such as polypropylene, which are relatively inseparable. Since the length of pressing the molten synthetic resin material between the forming belt and the forming roller is almost constant, depending on the resin material, the pressing time is too long and the sheet or film is In some cases, it became difficult to separate, and workability was not improved, and sufficient gloss could not be obtained due to short contact time with the roller.
- synthetic resin materials such as acrylic, which are firmly fused to casting drums and forming rollers
- synthetic resin materials such as polypropylene
- the present invention provides a sheet or film made of a thermoplastic synthetic resin, which can reduce the size of a manufacturing apparatus, is easy to handle, and can obtain a sheet or film having excellent gloss and smoothness. It is an object of the present invention to provide a manufacturing method and an apparatus therefor.
- the present invention provides a thermoplastic synthetic resin sheet or sheet which enables a sheet or a film to be easily separated from a casting drum or a forming roller even when the type of the synthetic resin material is changed, and to obtain a sufficient gloss. It is an object of the present invention to provide a method for producing a film and an apparatus therefor. Disclosure of the invention
- the present invention relates to a method for producing a sheet or film made of a thermoplastic synthetic resin by rolling and cooling a synthetic resin material continuously supplied and supplied from a die to produce a sheet or film made of a thermoplastic synthetic resin having a predetermined thickness.
- the outer peripheral surface of the casting roller whose rotating outer peripheral surface is mirror-finished, faces the outer peripheral surface of the casting roller so as to circulate along a part of the outer peripheral surface of the castin roller in an arcuate manner.
- the synthetic resin material is supplied and supplied to the mold, and the thermoplastic synthetic resin sheet or film is continuously molded by the pressure between the casting roller and the molding sleeve, and the separation resistance of the synthetic resin material is reduced.
- the distance between the casting roller and the molding sleeve to press the sheet or film is adjusted to the outer circumference of the casting roller. It is characterized in that to precondition circumferentially along.
- thermoplastic synthetic resin material means a synthetic resin material in a softened plastic state
- the die means an extrusion die, particularly a T die.
- the distance for pinching the sheet or the film is provided so as to be adjustable in the circumferential direction along the outer peripheral surface of the casting roller, even if the type of the film or the sheet is changed, the type is not changed. By adjusting the pinching distance accordingly, it is possible to prevent the thermoplastic synthetic resin sheet or film from being firmly fused and difficult to separate.
- the distance for nipping the sheet or film between the casting roller and the molding sleeve is adjusted to be short.
- a sheet or film made of a thermoplastic synthetic resin is firmly adhered to the outer peripheral surface of the castin roller or the surface of the molding sleeve to prevent it from becoming difficult to separate, and is formed from the outer peripheral surface of the casting roller.
- a sheet or film made of a glossy thermoplastic synthetic resin can be taken off.
- the sheet or film is pressed between the casting roller and the molding sleeve.
- the distance is increased, sufficient time for glossing is secured, productivity is improved, and the thermoplastic synthetic resin sheet or film is removed from the outer peripheral surface of the casting roller or Can take off a glossy thermoplastic synthetic resin sheet or film molded from the outer peripheral surface of the casting roller without fear of firmly fusing to the surface of the molding sleeve.
- the formed glossy thermoplastic synthetic resin sheet or film can always be appropriately and appropriately pulled from the outer peripheral surface of the casting roller without being fused.
- the adjustment of the distance by which the sheet or the film is nipped by the molding sleeve is performed by casting on the downstream side around the first support opening near the die and facing the casting roller.
- the second support roller facing the roller is rotated in a direction approaching and separating from the casting roller. Therefore, by rotating the second support port around the first support port, the pinching distance of the sheet or film can be easily adjusted during processing.
- the present invention relates to a method for producing a thermoplastic synthetic resin sheet or film which has been continuously molded by the sandwiching pressure between the casting roller and the molding sleeve, leading the sheet or film directly to a cooling water tank, and cooling and completely cooling and solidifying the sheet or film. Removing the coolant adhering to the sheet surface, and then correcting the heat distortion of the sheet or film within the range of 140 ° C. to + 15 ° C. of the heat deformation temperature of the sheet or film. The sheet or film is subjected to a reheating treatment, whereby the sheet or film made of the thermoplastic synthetic resin is cooled at a stretch, the transparency thereof is increased, and a product without distortion can be obtained.
- the present invention is such that, among the support rollers, a third support roller which is not opposed to the casting roller is moved to adjust a pressing force of a surface of the molding sleeve to an outer peripheral surface of the casting roller. It is. Thereby, even if the above-mentioned pinching distance changes, the crimping force can be adjusted independently and easily, and the above-mentioned effect is remarkably exhibited, and the thermoplastic synthetic resin sheet or film to be formed is formed. Can be easily modified or changed.
- the outer peripheral surface of the first support roller facing the outer peripheral surface of the casting roller near the die is covered with an elastic layer. For this reason, the change in the thickness of the synthetic resin material can be accurately absorbed by the deformation of the elastic layer.
- the present invention is to produce a glossy thermoplastic synthetic resin sheet or film having a predetermined thickness by using a molding mechanism having a metal casting roller made of a synthetic resin material continuously supplied and supplied from a die.
- a molding mechanism having a metal casting roller made of a synthetic resin material continuously supplied and supplied from a die.
- the molding mechanism comprises: a caster roller rotatably supported by a frame; and an arcuate contact with a part of the outer peripheral surface of the casting roller, which rotates and cooperates with the casting roller to form the sheet or film. And a metal flexible forming sleeve for holding the forming sleeve, and at least three supporting rollers for supporting the forming sleeve in a circulating manner.
- the forming sleeve has a seamless finish and a mirror-finished outer surface.
- a first support roller of the support port roller faces the casting roller near the die, a second support port roller faces the casting roller on the downstream side, and an outer periphery of the castin roller.
- the third support roller is disposed so as to be rotatable about the first support roller with respect to the surface, the third support roller is located away from the casting roller, and the second support roller is provided. Is provided so as to be movable so that the distance that the sheet or film is pressed between the casting roller and the molding sleeve, that is, the distance that the sheet or film being processed is in close contact with the casting roller and the molding sleeve, can be adjusted. It is characterized by. Thereby, the manufacturing method of the present invention can be reliably performed.
- the second support roller is provided on a free end side of a support lever pivotally supported on the same axis as the first support roller, and the support lever is rotated by adjusting means. is there.
- first, second and third support rollers of the present invention are arranged at the vertices of a triangle, and the third support roller is separated from the outer peripheral surface of the casting roller so as to adjust the tension of a molding sleeve. Since it is movably disposed on the frame, the adjustment of the crimping force is simple, the whole apparatus can be made smaller in size as compared with a conventional apparatus, and the molding sleeve can be easily replaced.
- a first support roller facing the outer peripheral surface of the casting roller toward the die is provided with an elastic layer of heat resistance, elastic rubber, elastomer, or the like on the outer peripheral surface. Due to the coating, the deformation of the elastic layer can absorb the variation in the thickness of the thermoplastic synthetic resin sheet or film supplied from the die.
- the third support roller of the present invention is arranged on the frame so as to be parallel or non-parallel and the inter-axis distance can be changed with respect to the first and second support rollers.
- the forming sleeve worn by use can be removed from these support rollers and replaced with a new one, and the forming sleeve is unevenly distributed on one side. If there is unevenness in the thickness of the thermoplastic synthetic resin sheet or film to be manufactured, one end of the third support roller is inclined in a direction to correct the uneven distribution, and Eccentric distribution can be easily corrected.
- the diameter of the casting roller of the present invention is 1 to 3 times the diameter of the first support roller, and the diameter of the first support roller is 1 to 3 times the diameter of the second support roller and the third support roller.
- these support rollers can be arranged near the outer periphery of the casting roller, and without increasing the size of the molding sleeve, a sheet or a sheet of thermoplastic synthetic resin with a predetermined pressure force.
- the molded sleeve of the present invention is made of nickel, molded by a seamless method, When the thickness is 0.2 to 0.5 mm and the diameter is 400 to 100 mm, the above-mentioned effects can be more remarkably exhibited.
- each of the support rollers of the present invention is 600 to 100 times the thickness of the molding sleeve, there is no excessive bending deformation, and the durability life of the molding sleeve can be extended. If the above value is less than 600 times, the life is extremely shortened, and if this value exceeds 100 times, the apparatus becomes large, which is not a very effective measure.
- a cooling water tank for immersing a thermoplastic synthetic resin sheet or film at a position downstream of the second support roller facing the casting roller, and a draining means for draining water on the surface of the sheet or film.
- the cooling water tank is provided on the frame so as to be able to move up and down
- the sheet correction heating device is provided on another frame which can be connected to the frame, and these frames are mounted on an installation surface. It is possible to move with. This facilitates the installation of the molding device, the cooling water tank, and the sheet straightening / heating device with respect to the die.
- the cooling water tank is unnecessary, the cooling device is retreated from the film or sheet passage. I can put it.
- the cooling water tank is retracted in this way, it does not hinder the setup work before the start of the work, and the workability is good.
- polypropylene a kind of thermoplastic synthetic resin used in the present invention
- a crystalline propylene homopolymer, a copolymer other than propylene and propylene, for example, a crystalline copolymer obtained by copolymerizing at least one of ethylene and butene, and the like, and a mixture thereof can be used.
- these polypropylenes include antioxidants, lubricants, antistatic agents, slip agents, anti-blocking agents, ultraviolet absorbers, nucleating agents, transparency improvers, organic peroxides, pigments, talc and carbonated calcium salts.
- Other inorganic fillers, organic fillers such as wood flour and synthetic fibers, and thermoplastic synthetic resins and rubbers other than polyethylene and ethylene propylene rubber may be added as necessary and used. .
- thermoplastic synthetic resins polyethylene, polystyrene, ABS, polyethylene terephthalate, polybutylene terephthalate, polyamide, polycarbonate, vinyl chloride and the like can be used.
- the method and apparatus for producing a sheet or film of the present invention are described for one sheet or the like, the present invention is also applicable to the production of a multilayer sheet-laminate sheet.
- FIG. 1 is a principle side view showing an embodiment of an apparatus for performing the method of the present invention.
- FIG. 2 is a side view of a forming mechanism portion showing a support structure of a second support roller in FIG.
- FIG. 3 is a mechanical plan view of the forming sleeve and the supporting portion.
- FIG. 4 is a principle mechanical side view of another embodiment including a cooling device in a post-processing step.
- the apparatus main body 10 of the present invention uses a synthetic resin material continuously supplied from the extrusion die 11, that is, a synthetic resin material FO that has been heated to the heat deformation temperature and melted.
- the molding mechanism 13 with the casting roller 12 Then, it is rolled and cooled to produce a glossy thermoplastic synthetic resin sheet or film F having a predetermined thickness as follows.
- the casting mechanism 13 is rotatably supported by the frame 14 so as to be rotatably supported on the casting roller 12.
- the casting roller 13 abuts on a part of the outer peripheral surface of the casting roller 12 in an arc shape and rotates.
- a flexible, tubular metal made of a synthetic metal material F0 supplied from the extrusion die 11 together with 12 and formed to a predetermined thickness by squeezing the same.
- Rollers 17 are provided.
- the castin roller 12 is also provided on the frame 14 so as to be able to contact and separate from the support rollers 16 and 17 (see FIG. 3).
- the molding sleeve 15 is made of Dimco Co., Ltd., and as described in claim 1 of Japanese Patent Application Laid-Open No. 2001-33081, a metal capable of plastic working is used. Is formed into a ring shape by reducing the thickness of a cylindrical tube made of to a predetermined thickness by a thinning treatment, and then cutting the thinned cylindrical tube into a desired width.
- the forming sleeve 15 is provided with a metal support port having three horizontal axes, including a third support roller 18 located away from the casting roller 12, and a roller 16, 17, 18. Arranged at the vertices of a triangle and wound around each roller in a triangular shape, and formed into a circular arc at the part along the outer peripheral surface of the casting roller 12 to face the outer peripheral surface of the casting roller 12 There is. Note that the number of the support rollers may be four or more.
- the frame 14 is provided with wheels, is movable on an installation surface (including a rail), and can be fixed at a position where the molding mechanism 13 and the die 11 are centered.
- the tension of the molding sleeve 15 can be adjusted by adjusting the distance between the support rollers 16, 17, and 18.
- the first support roller 16 near the die 11 has an outer peripheral surface made of heat-resistant, elastic rubber or elastomer.
- the bearing 19 is covered with a layer 19 and is disposed on the frame 14 so as to face the outer peripheral surface of the casting roller 12 and to be rotatable around its horizontal axis. As shown in FIG. a and 20b are arranged so that the approach and separation of the casting roller 12 can be finely adjusted.
- the distance for pressing the sheet or film that is, the distance S where the sheet or film being processed is in close contact with the castin roller 12 and the forming sleeve 15 is determined by the outer peripheral surface of the casting roller 12. It is provided so as to be adjustable in the circumferential direction.
- a second support roller 17 provided at a distance from the first support roller 16 in the downstream direction approaches the casting roller 12 around the first support roller 16. It is arranged to be rotatable in the direction away from it.
- a bearing of a second support roller 17 is provided on a free end side of a support lever 26 whose base end is coaxially supported with the axis of the first support roller 16.
- adjusting means for rotating the support lever 26 around a horizontal axis of the pivotally supported base end for example, a feed screw mechanism including an electric motor M, usually via a ball screw mechanism B.
- the second support roller 17 is provided so as to be rotatable in a direction approaching and separating from the outer peripheral surface of the castin roller 12.
- a pneumatic or hydraulic cylinder driving device in addition to the electric motor M and the feed screw B, a pneumatic or hydraulic cylinder driving device, a rotation mechanism of the support lever 26 depending on the degree of insertion of the cotter, and the like can be used. Or, even if it is manual, there is no change in this invention.
- the third support roller 18 is used to correct the uneven distribution and deflection of the molding sleeve 15. And is displaceably disposed on the frame 14.
- the third support roller 18 is parallel or non-parallel to the other support rollers 16 and 17 and the dimension between the axes thereof can be changed and fixed while the axis of the third support roller 18 is kept horizontal in the forming sleeve 15. It is. Although there is no particular limitation on the mechanism, for example, the bearing portion of the third support roller 18 is collectively supported on the frame 14 so as to be able to largely contact and separate from the other support rollers. A support block 21 is used, and the left and right bearing portions 22 are equipped with support blocks 21 so that the other support rollers 16 and 17 can be finely adjusted in parallel and non-parallel with each other. Further, the third support roller 18 serves as a tension roller for adjusting the tension of the forming sleeve.
- the diameter of the casting roller 12 is about 1 to 3 times the diameter of the first support roller 16, and in the embodiment shown in the drawing, about 1.6 times the diameter of the first support roller 16.
- the diameter of 6 is about 1 to 1.5 times the diameter of the second support roller 17 and the third support roller 18 and is about 1.25 times in the embodiment shown in the figure.
- the present invention is not particularly limited to this diameter ratio.
- the molded sleeve 15 is made of nickel and is integrally molded into a cylindrical shape by a seamless method, and has a wall thickness of about 0.2 to 0.5 millimeters, about 0.3 mm in the embodiment, and a diameter of about 4 mm. It is set to a value of from 0.001 to 100 mm, and in the embodiment, about 50,000 mm.
- the diameter of each of the support rollers 16, 17, and 18 can be sufficiently used as 250, 200, and 200 millimeters, respectively. If it is thick, the forming sleeve 15 is elastically deformed radially and sufficiently radially on the peripheral surface of each of the support rollers 16, 17 and 18, and sufficiently withstands repeated bending stress. Things.
- the material of the molded sleeve As the material of the molded sleeve, another nickel alloy, stainless steel, titanium alloy, or the like may be used instead of nickel.
- the molded sleeve in Fig. 2 15 The thickness of the film or sheet being formed is exaggerated for convenience of explanation.
- a temperature control mechanism for heating or cooling the synthetic resin material FO is provided at an appropriate position, whereby the casting roller 12 and the circulating molding sleeve 1 are provided.
- the temperature control for the synthetic resin material F0 is enabled by the temperature adjustment of 5.
- the temperature of the molding sleeve 15 can be adjusted by providing a temperature adjusting mechanism for heating and cooling inside each of the support rollers 16, 17 and 18.
- a device for blowing air with controlled temperature may be added to the inner surface of the molding sleeve 15.
- the frame 14 In order to manufacture a sheet or a film with the above apparatus, first, before molding, the frame 14 is moved on an installation surface, and the molding mechanism 13 and the resin discharge port of the die 11 are centered. At the centered position, the frame 14 is fixed to the installation surface by an appropriate fixing means.
- the outer peripheral surface of the castin roller 12 and the forming sleeve 15, which is stretched in a triangular shape between the support rollers 16, 17, and 18, are supported by a first support roller 16 and a second support.
- the rollers 17 are brought into contact with each other, the first support roller 16 and the second support roller 17 are brought closer to the casting roller 12, and the positions of these are set to the thickness of the film or sheet to be formed.
- the third support roller 18 is separated from the first and second support rollers 16 and 17 so as to give a desired tension to the molding sleeve 15 by making fine adjustments according to the material and the material.
- a synthetic resin material FO is supplied and supplied from the die 11 to the molding sleeve 15 which circulates and moves while being in contact with the casting roller 12, and the casting port roller 12 and the molding sleeve 15 are connected to each other.
- the sheet or film F made of thermoplastic synthetic resin is continuously formed by the pinching pressure.
- the elastic layer 19, the first support roller 16 and the second support roller 17 The compression force is adjusted by the bending of the molding sleeve 15 between the casting rollers 12 and the casting roller 12 due to the deformation of the elastic layer 19 even if there is uneven thickness or partial thickness. Since the synthetic resin material F 0 extruded from the extrusion die 11 is fed between the sleeve 15 and the sleeve 15, the synthetic resin material F 0 is pressed and averaged.
- the second support roller 17 is moved away from the outer peripheral surface of the casting roller 12, and the outer peripheral surface of the casting roller 12 is moved. And the distance between the surfaces of the thermoplastic synthetic resin sheet or film pressed by the surface of the forming sleeve, that is, the distance S (see Fig. 2) where the sheet or film being processed is in close contact with the casting roller and the forming sleeve.
- thermoplastic synthetic resin is firmly adhered to the outer peripheral surface of the castin roller 12 or the surface of the molded sleeve 15 so that it is difficult to separate. Preventing the said from the casting roller 1 2 outer circumferential surface, take over the thermoplastic synthetic resins made sheet one preparative or film molded.
- the second support roller 17 is moved. Close to the outer peripheral surface of the casting roller 12, the clamping pressure distance S of the thermoplastic synthetic resin sheet or film between the outer peripheral surface of the casting roller 12 and the surface of the molding sleeve is increased, and sufficient gloss is obtained. Save time and increase productivity.
- the extrusion amount per unit time may be changed, so that the portion held between the casting roller 12 and the forming sleeve 15 is used. Change the spacing of Then, the positions of the first and second support rollers 16 and 17 with respect to the casting roller 12 are finely adjusted and changed.
- the support rollers 16 and 17 are to be made thinner, the support rollers 16 and 17 are moved closer to the casting roller 12, and the gap between the castin roller 12 and the molding sleeve 15 is sandwiched.
- the discharge amount per unit time from the die 11 is increased, and the first and second support rollers 16 and 17 are separated from the casting roller 12.
- the support roller 16 Since the support roller 16 has an elastic layer 19 on its surface, it receives the resistance of the synthetic resin material FO being molded during molding, and the elastic layer 19 is elastically deformed. A gap is formed between the molding sleeve 2 and the molding sleeve 15 to absorb the variation in the thickness of the synthetic resin material. If there is no load before processing, the casting roller 12 can be prevented from being damaged if the casting roller 12 and the molding sleeve 15 are prevented from contacting each other.
- the movement of the bearings 20 and 22 of the support rollers 16, 17 and 18 described above is finely controlled by an electric motor connected to the feed screws 23 and 24 via a reduction gear mechanism or the like. It is preferable to perform the adjustment, but it can be adjusted according to the cylinder driving device by pneumatic or hydraulic pressure, the degree of insertion of the cotter, and the like. Also, the gap between the molding sleeve 15 and the castin glass 12 is also similarly Can be adjusted. It should be noted that the drive of the feed screws 23, 24 and the cotter is not changed in the present invention even if it is manually driven in addition to the above-mentioned drive means.
- the forming sleeve 15 tends to be unevenly distributed on one of the three support rollers 16, 17, and 18 during molding, the axis of the third support roller 18 and the other support roller are not supported.
- the unevenness of the forming sleeve 15 may be corrected by adjusting the parallelism of the axes of the rollers 16 and 17.
- the present invention by slightly changing the degree of parallelism of the axis of the third support roller 18 with respect to the other support ports — rollers 16 and 17, an effect like a kind of turn bar is produced.
- the position of the molding sleeve 15 can be easily returned to the center of each of the support openings 16, 17 and 18.
- the third support opening is at an angle at which the forming sleeve 15 maintains the center position of the three support rollers 16, 17 and 18. I just need to put the roller 18 back.
- the forming sleeve 15 is always accurate. Can be held in any position.
- the block guide 25 of the third support roller 18 is moved and adjusted and fixed in each vertical direction (see the white arrow) independently in the left and right directions in FIG. It is like that.
- the distance between the first and second support ports — the bearings 20 a and 20 b of the right and left bearings 20 a and 20 b with respect to the casting roller 1 — is slightly reduced. Adjust to correct this.
- the third support roller 18 is largely moved inward of the forming sleeve 15 to loosen the tension of the forming sleeve 15,
- the caster roller 12 is separated from the support rollers 16 and 17, and the forming sleeves 15 are made cantilevered by the respective support rollers 16, 17 and 18. Remove from 18 and replace with new one.
- the synthetic resin material FO was Although the case of the so-called vertical extrusion system in which injection is performed along the vertical direction has been described, the same can be applied to the case of the so-called horizontal extrusion system in which the injection is performed along the horizontal direction.
- This embodiment is used in a post-process of the manufacturing apparatus shown in the above embodiment, and as shown in FIG. 4, approaches a downstream position of a second support roller 17 facing the casting roller 12.
- a cooling water tank 30 for immersing the thermoplastic resin sheet or film F in the cooling water tank 30 is disposed.
- a draining blower as a draining means for draining the cooled sheet or film F is provided.
- 36 are provided. Further downstream of the drain blower 36, the sheet or the film F has a heat deformation temperature in the range of 140 to + 15 ° C. to the extent that the heat distortion of the sheet or the film F is corrected.
- a sheet straightening / heating apparatus 37 having several heating roller groups 39 is arranged so as to reheat and heat the film F.
- the cooling water tank 30 is provided on the frame 14 so as to be able to move up and down.
- the sheet straightening and heating device 37 is provided on another frame 27 that can be freely connected to the frame 14. Is movable on the installation surface and is fixed in place.
- a guide roller group 38 is provided above the cooling water tank 30 so as to form a passage through which the film or sheet F does not pass through the cooling water tank 30.
- annealing treatment can be performed by successively reheating without cooling in water.
- the film or sheet F which is sandwiched between the casting roller 12 and the forming sleeve 15 and has a glossy surface close to a mirror surface, is directly applied to the cooling water tank 3.
- the transparency can be further improved by immersing the film in the cooling water tank 30.
- the film or sheet F is supplied to the sheet straightening / heating device 37 through 8 to be reheated.
- a material other than a crystalline thermoplastic synthetic resin film or sheet may be directly supplied to a secondary processing device (not shown) without passing through the cooling water tank 30 and the sheet straightening / heating device 37.
- the apparatus can be miniaturized, handling is easy, and a glossy thermoplastic synthetic resin sheet or film can be formed stably and continuously. Also, even if the type of synthetic resin material is changed, the pinching distance is determined according to the magnitude of the separation resistance to the casting roller or the forming sleeve, that is, the distance that the sheet or film being processed is in close contact with the casting roller and the forming sleeve. Since the sheet or film can be efficiently produced by adjusting in advance, a sheet or film having excellent gloss and smoothness can be obtained from various synthetic resin materials.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/514,007 US7427372B2 (en) | 2002-12-12 | 2003-12-01 | Method and apparatus for producing thermoplastic synthetic resin sheet or film |
EP03777170A EP1570971A4 (en) | 2002-12-12 | 2003-12-01 | METHOD AND DEVICE FOR PRODUCING THERMOPLASTIC ARTIFICIAL RESIN FOIL OR THERMOPLASTIC ARTIFICIAL RESIN FILM |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-361032 | 2002-12-12 | ||
JP2002361032A JP4441803B2 (ja) | 2002-12-12 | 2002-12-12 | 熱可塑性合成樹脂製シート又はフイルムの製造方法およびその装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004052620A1 true WO2004052620A1 (ja) | 2004-06-24 |
Family
ID=32501024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/015320 WO2004052620A1 (ja) | 2002-12-12 | 2003-12-01 | 熱可塑性合成樹脂製シート又はフイルムの製造方法及びその装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7427372B2 (ja) |
EP (1) | EP1570971A4 (ja) |
JP (1) | JP4441803B2 (ja) |
KR (2) | KR100847301B1 (ja) |
CN (2) | CN101239496A (ja) |
WO (1) | WO2004052620A1 (ja) |
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JP2007168425A (ja) * | 2005-11-22 | 2007-07-05 | Fujifilm Corp | 熱可塑性樹脂フィルムの製造方法 |
JP4870522B2 (ja) * | 2005-11-22 | 2012-02-08 | 富士フイルム株式会社 | 熱可塑性樹脂フィルムの製造方法 |
US20070216050A1 (en) * | 2006-03-17 | 2007-09-20 | Kim Sang M | Optical member fabricating apparatus and method and forming mold used for the same |
TWI387526B (zh) * | 2006-06-06 | 2013-03-01 | Fujifilm Corp | 熱可塑性樹脂薄膜及其製法、以及偏光板、光學補償薄膜、抗反射薄膜與液晶顯示裝置 |
US8287266B2 (en) * | 2006-06-16 | 2012-10-16 | GKN Aerospace Services Structures, Corp. | Device for performing consolidation and method of use thereof |
US8221109B2 (en) * | 2006-12-05 | 2012-07-17 | Gold Tip, Llc | Material layering device |
JP5390078B2 (ja) | 2007-07-06 | 2014-01-15 | 出光ユニテック株式会社 | ポリプロピレン成形品、シート状ポリプロピレン成形品およびポリプロピレン熱成形品の製造方法 |
JP5401029B2 (ja) * | 2007-11-27 | 2014-01-29 | 住友化学株式会社 | 押出樹脂板およびその製造方法、並びに表面塗工板 |
KR100933929B1 (ko) | 2009-08-26 | 2009-12-28 | 한화엘앤씨 주식회사 | 물탱크 제조용 열가소성 성형재 및 이를 이용한 물탱크용 패널의 제조방법 |
US9056412B2 (en) * | 2009-12-30 | 2015-06-16 | The Procter & Gamble Company | Process for the production of high internal phase emulsion foams |
CN101913222A (zh) * | 2010-08-28 | 2010-12-15 | 乌海市盛远塑胶有限责任公司 | 不消光高光压延膜的生产工艺 |
CN102161222B (zh) * | 2011-01-05 | 2013-11-06 | 鑫永铨股份有限公司 | 硅胶的连续押出、压延方法 |
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CN103660249A (zh) * | 2013-11-28 | 2014-03-26 | 南宁市日建塑料包装有限责任公司 | 一种塑料片材机的片材厚度调整装置 |
CN104002421A (zh) * | 2014-06-19 | 2014-08-27 | 东莞市雄林新材料科技股份有限公司 | 一种流延冷却装置 |
CN107283696B (zh) * | 2017-07-21 | 2019-11-12 | 江苏中大包装材料有限公司 | 一种挤压式塑料薄膜无水冷却装置 |
JP6597983B2 (ja) * | 2017-10-23 | 2019-10-30 | パナソニックIpマネジメント株式会社 | ロールプレス装置 |
FR3076758B1 (fr) * | 2018-01-12 | 2021-03-05 | F D S | Procede de fabrication en continu d'une nappe gaufree et installation afferente |
JP6897636B2 (ja) * | 2018-06-18 | 2021-07-07 | カシオ計算機株式会社 | 樹脂シートの製造方法 |
WO2020194496A1 (ja) * | 2019-03-26 | 2020-10-01 | 黒田 剛司 | 熱可塑性合成樹脂製の帯状立体装飾片の製造方法及びその製造装置 |
CN111167140A (zh) * | 2020-01-09 | 2020-05-19 | 许华清 | 一种薄膜浓缩用大型加工设备 |
CN111267329B (zh) * | 2020-02-19 | 2021-10-29 | 浙江永裕家居股份有限公司 | 一种pvc自由发泡板生产设备 |
CN114131821A (zh) * | 2021-11-17 | 2022-03-04 | 常州贝弗勒机械有限公司 | 热压片材冷却定型装置 |
CN114714600B (zh) * | 2022-04-02 | 2022-11-01 | 浙江海利得复合新材料有限公司 | 一种基于tpu行程与冷却温度调节的tpu薄膜冷却成型装置 |
CN117621423B (zh) * | 2023-11-07 | 2024-05-14 | 东莞市首誉电子材料有限公司 | 一种屏幕光学膜片的制备控制方法、装置、设备及介质 |
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- 2002-12-12 JP JP2002361032A patent/JP4441803B2/ja not_active Expired - Lifetime
-
2003
- 2003-12-01 CN CNA2008100810696A patent/CN101239496A/zh active Pending
- 2003-12-01 CN CNB2003801005271A patent/CN100379546C/zh not_active Expired - Fee Related
- 2003-12-01 EP EP03777170A patent/EP1570971A4/en not_active Withdrawn
- 2003-12-01 US US10/514,007 patent/US7427372B2/en not_active Expired - Fee Related
- 2003-12-01 WO PCT/JP2003/015320 patent/WO2004052620A1/ja active Application Filing
- 2003-12-01 KR KR1020047017770A patent/KR100847301B1/ko active IP Right Grant
- 2003-12-01 KR KR1020087007122A patent/KR20080031061A/ko active IP Right Grant
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Also Published As
Publication number | Publication date |
---|---|
CN100379546C (zh) | 2008-04-09 |
KR20080031061A (ko) | 2008-04-07 |
US20050173828A1 (en) | 2005-08-11 |
JP2004188868A (ja) | 2004-07-08 |
EP1570971A1 (en) | 2005-09-07 |
CN1692011A (zh) | 2005-11-02 |
KR20050083569A (ko) | 2005-08-26 |
US7427372B2 (en) | 2008-09-23 |
EP1570971A4 (en) | 2008-10-15 |
CN101239496A (zh) | 2008-08-13 |
JP4441803B2 (ja) | 2010-03-31 |
KR100847301B1 (ko) | 2008-07-18 |
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