Film product manufacturing method and manufacturing device

Abstract

To provide a manufacturing apparatus for film product that can effectively suppress a defective from being manufactured.SOLUTION: A manufacturing apparatus A has: a carrier part 5 which has a carrier sheet 2 for carrying long-sized belt-like film original fabric 1 including an optical film to a cutting processing part 6; a tape supply part 43 which supplies an adhesive tape 3; a connect part 45 which splices a first breadthwise end part 1a and a second breadthwise end part 1b of the film original fabric 1 to the carrier sheet 2 respectively with the adhesive tape 3; and the cutting processing part 6 which has a cutting edge 611 for cutting the film original fabric 1 spliced to the carrier sheet 2 with the adhesive tape 3.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a method and an apparatus for manufacturing a film product, which form a plurality of film products from a raw film. [Background technology]

[0002] Optical films have been used in image display devices such as liquid crystal display devices and organic electroluminescence (EL) display devices. Examples of such optical films include polarizing films containing polarizers, retardation films, and light diffusion films. Polarizing films are also used in applications other than image display devices, such as polarized sunglasses and light-control windows. Such optical films are formed into a predetermined planar shape (a shape that meets product specifications) that matches the screen, etc., of the image display device in order to be incorporated therein. In this specification, an optical film formed into a predetermined shape is referred to as a "film product." The film product can be obtained, for example, by punching a raw film containing an optical film into a predetermined shape with a cutting blade.

[0003] For example, Patent Document 1 discloses an apparatus that conveys a long strip, punches the strip with a cutting blade, and peels off the strip waste that is generated after punching while inverting it at an angle of approximately 45 degrees. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-335235 Summary of the Invention

[0005] However, when punching a raw film roll with a cutting blade to obtain film products, problems such as wrinkles occurring in the raw film roll or the raw film roll being displaced from its predetermined position can occur. In particular, long, strip-shaped raw film rolls are easily wrinkled or displaced because they are pulled and transported in their longitudinal direction. If such problems occur during the cutting process, there is a risk of a relatively large number of defective products being produced. Examples of such defective products include film products that do not meet product specifications and film products with deformed edges. Minimizing the occurrence of such defective products improves production efficiency (the number of good film products obtained per unit area of raw film roll). [Problem to be solved by the invention]

[0006] An object of the present invention is to provide a method and an apparatus for manufacturing a film product that can effectively prevent the occurrence of defective products when cutting a raw film including an optical film to form a film product. [Means for solving the problem]

[0007] The present invention 1st The method for manufacturing a film product includes a conveying step in which a long strip of film raw material including an optical film is conveyed to a cutting zone by a conveying sheet, and a cutting step in which the film raw material is cut in the cutting zone to form a plurality of film products, and the film raw material is cut while a first end and a second end in the width direction of the film raw material are connected to the conveying sheet using adhesive tape.

[0008] In a preferred first manufacturing method of the present invention, in the conveying step, the film roll and adhesive tape are each supplied onto the surface of the conveying sheet from below the surface of the conveying sheet, thereby connecting the first and second widthwise ends of the film roll to the conveying sheet using the adhesive tape. A preferred first manufacturing method of the present invention involves applying the adhesive tape across the surface of the first widthwise end of the film roll and the surface of the conveying sheet, and also applying the adhesive tape across the surface of the second widthwise end of the film roll and the surface of the conveying sheet. In a first preferred manufacturing method of the present invention, the adhesive tape is peeled off from the transfer sheet after the raw film is cut. A preferred first manufacturing method of the present invention involves cutting the film roll, peeling the adhesive tape from the conveying sheet, and pulling out the remaining film including the first and second widthwise ends of the film roll, thereby winding up the remaining film with the adhesive tape still attached. The second film product manufacturing method of the present invention includes a conveying step in which a long strip of film raw material including an optical film is conveyed to a cutting zone by a conveying sheet, and a cutting step in which the film raw material is cut in the cutting zone to form multiple film products. In the conveying step, the film raw material and adhesive tape are supplied onto the surface of the conveying sheet from below the surface of the conveying sheet, thereby connecting the first and second widthwise ends of the film raw material to the conveying sheet using the adhesive tape, and in the cutting step, the film raw material is cut while still connected using the adhesive tape. The third method for producing a film product of the present invention includes a conveying step of conveying a long strip-shaped raw film including an optical film to a cutting zone by a conveying sheet, and a cutting step of cutting the raw film in the cutting zone to form a plurality of film products, and the conveying sheet is connected to a first end and a second end in the width direction of the raw film. Viscous The film roll is cut while the film roll is held together using adhesive tape, and after cutting the film roll, the adhesive tape is peeled off from the conveying sheet while the remaining film including the first end and second end in the width direction of the film roll is pulled out, and the remaining film is wound up with the adhesive tape still attached.

[0009] According to another aspect of the present invention, there is provided an apparatus for producing a film product. The present invention 1st The film product manufacturing device includes: a conveying unit having a conveying sheet that conveys a long strip of film material including an optical film to a cutting processing unit; Long strips wound in a roll Adhesive tape In the connecting part a tape supply unit that supplies the first end and the second end of the film roll in the width direction and the conveying sheet are joined together with the adhesive tape, respectively; The aforementioned The conveying device includes a connecting section and a cutting processing section having a cutting blade for cutting the raw film connected to the conveying sheet by the adhesive tape.

[0010] A preferred embodiment of the present invention 1st The manufacturing apparatus further has a film supply section that supplies the film roll to the conveying section, and the film supply section supplies the film roll to the connecting section from below the surface of the conveying sheet, and the tape supply section supplies the adhesive tape to the connecting section from below the surface of the conveying sheet. A preferred embodiment of the present invention 1st The manufacturing apparatus has a first tape supply unit that supplies the adhesive tape to the connecting unit so that it spans the surface of the first widthwise end of the film roll and the surface of the conveying sheet, and a second tape supply unit that supplies the adhesive tape to the connecting unit so that it spans the surface of the second widthwise end of the film roll and the surface of the conveying sheet. A preferred embodiment of the present invention 1st The manufacturing apparatus further includes a tape peeling unit that is disposed downstream of the cutting processing unit and peels the adhesive tape from the conveying sheet. A preferred embodiment of the present invention 1st The manufacturing apparatus further includes a residue removal unit that is disposed downstream of the cutting unit and that winds up the residue film including the first end and second end in the width direction of the raw film together with the adhesive tape. The second film product manufacturing apparatus of the present invention comprises a conveying section having a conveying sheet that conveys a long strip of film raw material including an optical film to a cutting processing section, a film supplying section that supplies the film raw material to the conveying section, a tape supplying section that supplies adhesive tape, a connecting section that connects a first end and a second end of the film raw material in the width direction to the conveying sheet with the adhesive tape, and the cutting processing section having a cutting blade that cuts the film raw material connected to the conveying sheet with the adhesive tape, wherein the film supplying section supplies the film raw material to the connecting section from below the surface of the conveying sheet, and the tape supplying section supplies the adhesive tape to the connecting section from below the surface of the conveying sheet. The third film product manufacturing apparatus of the present invention comprises a conveying section having a conveying sheet that conveys a long strip of film raw material including an optical film to a cutting processing section, a tape supplying section that supplies adhesive tape, a connecting section that connects the first and second widthwise ends of the film raw material to the conveying sheet with the adhesive tape, the cutting processing section having a cutting blade that cuts the film raw material connected to the conveying sheet with the adhesive tape, and a residue removing section that is arranged downstream of the cutting processing section and winds up residual film including the first and second widthwise ends of the film raw material together with the adhesive tape. [Effects of the Invention]

[0011] According to the manufacturing method and manufacturing apparatus of the present invention, film products that meet product specifications can be reliably cut out from raw film, thereby improving the production efficiency of film products. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a schematic side view showing a film product manufacturing apparatus according to a first embodiment. [Figure 2] FIG. 2 is a schematic plan view showing the manufacturing apparatus (a plan view of the manufacturing apparatus as seen from above). [Figure 3] FIG. 2 is an enlarged side view of a part (connection portion) of the manufacturing apparatus. [Figure 4] FIG. 4 is an enlarged end view taken along line IV-IV in FIG. 2. [Figure 5] An enlarged end view taken along line VV in Figure 2. [Figure 6] FIG. 10 is an enlarged end view showing the state in which the chuck is separated from the conveying sheet and the film web. [Figure 7] FIG. 4 is a perspective view of a cutter unit including an enlarged view of a part of a cutting blade. [Figure 8] FIG. 2 is an enlarged side view of a portion (residue removal section) of the manufacturing apparatus. [Figure 9] 9 is a front view of a residue removal unit of the manufacturing apparatus (a front view seen from the direction of the white arrow IX in FIG. 1). [Figure 10] FIG. [Figure 11] FIG. 2 is a schematic side view showing the layer structure of an original film according to one example. [Figure 12] FIG. 10 is a schematic side view showing the layer structure of a raw film according to another example. [Figure 13] FIG. 4 is a schematic side view showing a process of cutting a raw film by a cutting processing unit of the manufacturing apparatus. [Figure 14] FIG. 6 is a schematic plan view showing a film product manufacturing device according to a second embodiment. [Figure 15] FIG. 10 is a schematic side view showing a film product manufacturing apparatus according to a third embodiment. [Figure 16] FIG. 10 is a schematic side view showing a film product manufacturing apparatus according to a fourth embodiment. [Figure 17] FIG. 10 is a schematic side view showing a film product manufacturing apparatus according to a fifth embodiment. [Figure 18] FIG. 10 is a schematic side view showing a film product manufacturing apparatus according to a sixth embodiment. [Figure 19] FIG. 13 is a schematic side view showing a film product manufacturing apparatus according to a seventh embodiment. [Figure 20] FIG. 20 is an enlarged end view taken along line XX-XX in FIG. 19. DETAILED DESCRIPTION OF THE INVENTION

[0013] In this specification, the term "downstream side" refers to the leading side of the film web in the transport direction, and the term "upstream side" refers to the opposite side. Furthermore, the term "width direction" refers to the direction perpendicular to the transport direction of the film web. Furthermore, in this specification, the terms "film" and "sheet" both refer to flexible, thin webs, and are essentially synonymous.

[0014] [Outline of film product manufacturing equipment] 1 and 2 show a manufacturing apparatus A for a film product B, and FIG. 3 is an enlarged side view of a connector portion of the manufacturing apparatus A. 1, the manufacturing apparatus A can be roughly divided into areas including a supply zone Z1 that supplies the raw film web 1 to the production line, a film conveying zone Z2 that conveys the raw film web 1 downstream using a conveying sheet 2, a cutting zone Z3 that cuts the raw film web 1 to form a plurality of film products B, a removal zone Z4 that winds up and removes the remaining film 19 from the raw film web 1, and a recovery zone Z5 that recovers the film products B. At the boundary between the supply zone Z1 and the film conveying zone Z2, or upstream of the cutting zone Z3 and midway through the film conveying zone Z2, there is a connect zone Z6 that connects the raw film web 1 and the conveying sheet 2 with adhesive tape 3.

[0015] 1 to 3, the manufacturing apparatus A can be roughly classified by components as follows: a film supply unit 41 that supplies a film web 1 including an optical film, a tape supply unit 43 that supplies adhesive tape 3, a connecting unit 45 that connects both widthwise ends (first and second widthwise ends) of the film web 1 to a conveying sheet 2 using the adhesive tape 3, a conveying unit 5 that has the conveying sheet 2 and conveys the film web 1, a cutting processing unit 6 that has a cutting blade 611 that cuts the film web 1 and forms a plurality of film products B, a residue removal unit 7 that winds up residual film 19 from the film web 1, and a product recovery unit 8 that recovers the film products B. The film supply unit 41, tape supply unit 43, connecting unit 45, conveying unit 5, cutting processing unit 6, residue removal unit 7, and product recovery unit 8 are arranged in series on a single line. However, the manufacturing apparatus A of the present invention is not limited to a case where all of these are arranged in series, and at least one of them may be provided on a different line. The manufacturing apparatus A of the present invention is mainly characterized in that the film roll 1 is cut in the cutting processing section 6 while the first end 1a and second end 1b in the width direction of the film roll 1 are connected to the conveying sheet 2 using the adhesive tape 3, respectively. Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0016] [First embodiment] <Film supply section of manufacturing equipment> The film supply unit 41 of the manufacturing apparatus A is disposed upstream of the conveying unit 5. The film supply unit 41 supplies the raw film 1 to the conveying unit 5. The film supply unit 41 has a loading unit 411 into which the raw film 1 is loaded, and a guide roller 412 that guides the raw film 1. The guide roller 412 is disposed below the surface of the conveying sheet 2. In other words, the film supply unit 41 supplies the raw film 1 to the connecting unit 45 from below the surface of the conveying sheet 2.

[0017] As shown in Fig. 10, the raw film web 1 has a long strip shape. In this specification, a long strip shape refers to a generally rectangular shape in a plan view, with the longitudinal length being sufficiently longer than the lateral length. The longitudinal length of the raw film web 1 is, for example, 5 m or more, and preferably 10 m or more. The longitudinal direction of the raw film web 1 is the transport direction of the manufacturing apparatus A, and the lateral direction of the raw film web 1 is its width direction. The long strip-shaped raw film 1 is usually set in a rolled state in the loading section 411 of the film supply section 41. The raw film 1 is pulled out from the loading section 411 by the pulling of the conveying section 5, and the raw film 1 is supplied to the conveying section 5.

[0018] The raw film includes an optical film. The raw film may be composed of only the optical film, or may include both the optical film and components other than the optical film. 11 and 12 show examples of the layer structure of the raw film. The raw film has an optical film 11, a separator film 13, and a pressure-sensitive adhesive layer 12 that is interposed between the optical film 11 and the separator film 13 to bond the two films 11, 13 together. The pressure-sensitive adhesive layer 12 is firmly adhered to the optical film 11 and is releasably adhered to the separator film 13. The separator film 13 can be peeled off at the interface with the pressure-sensitive adhesive layer 12. It is also possible to use an optical film raw sheet that does not have the pressure-sensitive adhesive layer 12 and the separator film 13 (not shown).

[0019] The optical film 11 includes an optically functional film. Examples of the optically functional film include a polarizer, a retardation film, a light diffusion film, a brightness enhancement film, an antiglare film, and a light reflection film. A polarizer is a film that has the property of transmitting light (polarized light) vibrating in a specific direction and blocking light vibrating in other directions. The retardation film is a film that exhibits optical anisotropy, and representative examples include stretched films of acrylic resins, cycloolefin resins, cellulose resins, and the like. The optical film 11 may also include a protective film. The protective film is laminated to protect the optically functional film. A colorless and transparent film is typically used as the protective film.

[0020] In the film roll illustrated in FIG. 11 , the optical film 11 includes, from the bottom of the drawing, a first protective film 111, a polarizer 112, and a second protective film 113. The films 111 to 113 are bonded together to form a single laminated film (optical film 11). In the illustrated example, the first protective film 111 and the polarizer 112, and the polarizer 112 and the second protective film 113 are directly bonded to each other. However, if necessary, an adhesive layer (or pressure-sensitive adhesive layer) may be interposed between these films, and the films may be bonded to each other via the adhesive layer (or pressure-sensitive adhesive layer) (not shown). A surface protective film 14 is laminated on the surface of the optical film 11 (the surface of the second protective film 113) via a pressure-sensitive adhesive layer 15. The surface protective film 14 can be peeled off from the surface of the optical film 11 together with the pressure-sensitive adhesive layer 15. Since the surface protective film 14 and the adhesive layer 15 are provided as needed, a raw film sheet without the surface protective film 14 and the adhesive layer 15 may be used.

[0021] In the raw film illustrated in Fig. 12, the optical film 11 has a retardation film 115. A surface protection film 16 is laminated on the surface of the optical film 11 (the surface of the retardation film 115) via an adhesive layer 17. The surface protection film 16 can be peeled off from the surface of the optical film 11 (retardation film 115) together with the adhesive layer 17. Note that the surface protection film 16 and the adhesive layer 17 are provided as needed, and therefore a raw film that does not have the surface protection film 16 and the adhesive layer 17 may also be used. The optical film 11 is Figure 11 and Figure 12 For example, the optical film may include two or more optically functional film layers, or may be composed of only one optically functional film layer.

[0022] The pressure-sensitive adhesive layers 12, 15, and 17 provided on the optical film 11 are adhesive at room temperature and maintain their adhesiveness even after peeling, allowing them to be reattached. The pressure-sensitive adhesive layers 12, 15, and 17 are made of known pressure-sensitive adhesives. Examples of the pressure-sensitive adhesive include colorless and transparent acrylic pressure-sensitive adhesives, rubber pressure-sensitive adhesives, silicone pressure-sensitive adhesives, urethane pressure-sensitive adhesives, vinyl alkyl ether pressure-sensitive adhesives, polyvinylpyrrolidone pressure-sensitive adhesives, polyacrylamide pressure-sensitive adhesives, and cellulose pressure-sensitive adhesives. The thickness of the pressure-sensitive adhesive layers 12, 15, and 17 is not particularly limited, but is, for example, 0.1 μm or more and 50 μm or less, and preferably 1 μm or more and 30 μm or less.

[0023] The separator film 13 is not particularly limited, but a film that does not contain an optically functional film is usually used. Examples of the separator film 13 include resin films such as polyethylene, polypropylene, polyethylene terephthalate, and polyester films; paper; porous films such as woven fabric, nonwoven fabric, and mesh fabric; and foamed resin films. Because of their excellent surface smoothness, the separator film 13 is preferably a resin film. Examples of the resin film include polyethylene terephthalate film, polybutylene terephthalate film, polyethylene film, polypropylene film, polybutene film, polybutadiene film, polymethylpentene film, polyvinyl chloride film, vinyl chloride copolymer film, polyurethane film, and ethylene-vinyl acetate copolymer film. The thickness of the separator film 13 is not particularly limited, and is, for example, 5 μm or more and 200 μm or less, and preferably 10 μm or more and 100 μm or less.

[0024] <Tape supply section of manufacturing equipment> The tape supply unit 43 of the manufacturing apparatus A is disposed upstream of the conveying unit 5. The tape supply unit 43 supplies the adhesive tape 3 to the conveying unit 5. A pair of tape supply units 43 are provided in the width direction. Hereinafter, when it is necessary to distinguish between the two tape supply units 43 for the purpose of explanation, one will be referred to as the "first tape supply unit 43-1" and the other as the "second tape supply unit 43-2." The tape supply units 43 (the first tape supply unit 43-1 and the second tape supply unit 43-2) each have a loading unit 431 that loads the adhesive tape 3, and a guide roller 432 that guides the adhesive tape 3. The adhesive tape 3 is in the form of a long strip. The long strip adhesive tape 3 is usually set in a rolled state in the loading section 431 of the tape supply unit 43. The adhesive tape 3 is wound in a roll, for example, with the adhesive layer on the inside. The adhesive tape 3 is pulled out of the loading section 431 by the pulling force of the conveying unit 5, and the adhesive tape 3 connects the film roll 1 and the conveying sheet 2. The guide roller 432 of the tape supply unit 43 is arranged below the surface of the conveying sheet 2. In other words, the tape supply unit 43 supplies the adhesive tape 3 to the connecting section 45 from below the surface of the conveying sheet 2.

[0025] 4 is an end view showing a state in which a first end 1a and a second end 1b in the width direction of the film roll 1 are joined to a conveying sheet 2 by adhesive tape 3. Note that the end view shows only the shape of the cut surface, and does not show the shape behind the cut surface. The tape supply unit 43 supplies the adhesive tape 3 to the connecting unit 45 so that the widthwise end of the film web 1 can be connected to the conveying sheet 2 using the adhesive tape 3. In this embodiment, the adhesive tape 3 is attached across the surface of the widthwise end of the film web 1 and the surface of the conveying sheet 2, thereby connecting the end to the conveying sheet 2. To this end, the first tape supply unit 43-1 supplies the adhesive tape 3 to the connecting unit 45 so that it spans the surface of the first widthwise end 1a of the film web 1 and the surface of the conveying sheet 2. The second tape supply unit 43-2 supplies the adhesive tape 3 to the connecting unit 45 so that it spans the surface of the second widthwise end 1b of the film web 1 and the surface of the conveying sheet 2. Here, the first end 1a and second end 1b in the width direction of the film web 1 are end portions of the film web 1 that extend in the longitudinal direction on both sides in the width direction. The first end 1a and second end 1b in the width direction of the film web 1 are not processed into the film product B when cut, but are removed as residual film 19.

[0026] The adhesive tape 3 has a substrate 31 and an adhesive layer 32 provided on one side of the substrate 31. In this embodiment, a single-sided adhesive tape is used as the adhesive tape 3. In a single-sided adhesive tape, the adhesive layer 32 is provided on only one side of the substrate 31, and therefore the other side of the substrate 31 does not have adhesiveness. Preferably, the other side of the substrate 31 is subjected to a release treatment. The adhesive tape 3 is in the form of a long strip. The width 3W of the adhesive tape 3 is not particularly limited, but is, for example, 10 mm or more and 150 mm or less, preferably 30 mm or more and 100 mm or less, and more preferably 40 mm or more and 80 mm or less. The adhesive tape 3 having the width 3W can be well attached across the widthwise end of the film web 1 and the conveying sheet 2.

[0027] The substrate 31 of the pressure-sensitive adhesive tape 3 is not particularly limited, and may be a resin film, paper, synthetic paper, porous film, foamed resin film, or the like, as exemplified for the separator film above. The thickness of the substrate 31 is not particularly limited, and may be, for example, 10 μm to 200 μm, and preferably 15 μm to 100 μm. The material of the adhesive layer 32 of the pressure-sensitive adhesive tape 3 is not particularly limited, and may be, for example, an acrylic adhesive or a rubber adhesive, as exemplified for the adhesive layer of the optical film above. The thickness of the adhesive tape 3 is not particularly limited, and may be, for example, 0.1 μm to 50 μm, and preferably 1 μm to 30 μm. The adhesive layer 32 of the pressure-sensitive adhesive tape 3 may be colorless and transparent, colored and transparent, or opaque.

[0028] The adhesive layer 32 of the adhesive tape 3 is made of an adhesive that has an adhesive strength sufficient to adhere to both the film web 1 and the conveying sheet 2 and to be peeled from the conveying sheet 2. The adhesive tape 3 is at least peelable from the conveying sheet 2. The adhesive strength of the adhesive layer 32 to the conveying sheet 2 may be substantially the same as, or may be smaller or larger than, the adhesive strength of the adhesive layer 32 to the film web 1. Since this makes it easier to peel the adhesive tape 3 from the conveying sheet 2 alone after the film web 1 is cut, the adhesive strength of the adhesive layer 32 to the conveying sheet 2 is preferably smaller than the adhesive strength of the adhesive layer 32 to the film web 1.

[0029] The adhesive strength of the pressure-sensitive adhesive layer 32 to the conveying sheet 2 and the film web 1 is, independently, for example, from 0.2 N / 25 mm to 20 N / 25 mm, and preferably from 2 N / 25 mm to 15 N / 25 mm. In particular, the adhesive strength of the pressure-sensitive adhesive layer 32 to the conveying sheet 2 is preferably from 1 N / 25 mm to 5 N / 25 mm, and the adhesive strength of the pressure-sensitive adhesive layer 32 to the film web 1 is preferably from 3 N / 25 mm to 7 N / 25 mm. An adhesive tape 3 having such adhesive strength can be adhered to the film web 1 and the conveying sheet 2 and can be easily peeled from the conveying sheet 2. The adhesive strength of the pressure-sensitive adhesive layer 32 to the conveying sheet 2 is measured in accordance with JIS Z 0237 by cutting the pressure-sensitive adhesive tape 3 to a length x width of 100 mm x 25 mm to prepare a test piece, attaching the test piece to the surface of the conveying sheet 2 via the pressure-sensitive adhesive layer 32, and then conducting a peel test under conditions of a peel angle of 90 degrees, a peel speed of 300 mm / min, and a temperature of 23°C. The adhesive strength of the pressure-sensitive adhesive layer 32 to the raw film 1 is also measured by similarly attaching the test piece to the surface of the raw film 1 and conducting the peel test.

[0030] <Transport section of manufacturing equipment> The transport section 5 transports the raw film 1 to the cutting zone Z3 (cutting section 6). The conveying section 5 has a conveying sheet 2 and conveying rollers 21 and 22 that move the conveying sheet 2. In this embodiment, the conveying sheet 2 is endless. The endless conveying sheet 2 is stretched over at least two conveying rollers 21 and 22 (at least a first conveying roller 21 and a second conveying roller 22). The first conveying roller 21 is disposed upstream of the cutting processing section 6 (cutting zone Z3), and the second conveying roller 22 is disposed downstream of the cutting processing section 6. To move the conveying sheet 2, the conveying rollers are driven to rotate by a driving device (not shown). For example, the first conveying roller 21 is a driving roller (or a driven roller), and the second conveying roller 22 is a driven roller (or a driving roller). Note that both the first conveying roller 21 and the second conveying roller 22 may be driving rollers. Furthermore, one or more additional rollers (e.g., support rollers) are typically disposed between the first conveying roller 21 and the second conveying roller 22, but these additional rollers are not shown. The endless conveying sheet 2 is rotated in one direction between the first and second conveying rollers 21, 22 by the conveying rollers 21, 22. The film web 1 in contact with the conveying sheet 2 is sent in the conveying direction following the conveying sheet 2. In the manufacturing apparatus A of this embodiment, the cutting processing section 6 is of a press type, as will be described later, so the conveying rollers 21, 22 move the conveying sheet 2 a predetermined distance, then stop (after the cutting processing of the film web 1 is completed), and then move the conveying sheet 2 again a predetermined distance, and this process is repeated.

[0031] The material of the conveying sheet 2 is not particularly limited, and synthetic resin sheets, rubber sheets, nonwoven fabrics, etc. can be used, with synthetic resin sheets being particularly preferred. Examples of synthetic resin sheets include styrene-based resin sheets such as polystyrene; polyolefin-based resin sheets such as polyethylene and polypropylene; polyester-based resin sheets such as polyethylene terephthalate; polyamide-based resin sheets such as nylon 66; and polyvinyl chloride-based resin sheets such as polyvinyl chloride. A laminated sheet in which two or more types of resin sheets are laminated may also be used. In this embodiment, since the conveying sheet 2 reaches the cutting processing section 6, it is preferable to use a conveying sheet 2 that also serves as a blade receiving sheet. The blade receiving sheet is a sheet that has a strength and / or thickness sufficient to withstand the penetration of the cutting edge of the cutting blade 611. In other words, since the cutting edge of the cutting blade 611 may penetrate the conveying sheet 2 in the cutting processing section 6, a sheet having a material and / or thickness sufficient to withstand the penetration of the cutting edge is used as the conveying sheet 2. The thickness of such a conveying sheet 2 is set as appropriate, but is, for example, between 0.4 mm and 2 mm, and preferably between 0.5 mm and 0.8 mm.

[0032] The conveying section 5 also has a clamp 25 that grips the conveying sheet 2 and the film roll 1. The clamp 25 has a pair of upper and lower bars 251, 252 (upper bar 251 and lower bar 252), a moving device that moves the bars 251, 252 in the conveying direction, and an elevating device (not shown) that moves the bars 251, 252 up and down. The upper bar 251 and the lower bar 252 are each formed of a straight bar extending in the width direction of the conveying sheet 2 and are longer than the width of the conveying sheet 2. The upper bar 251 and the lower bar 252 are, for example, hollow or solid rectangular prisms. The moving device has, for example, rails 253 extending in the conveying direction of the film web 1, wheels 254 that roll on the rails 253, and connecting portions 255 that connect the wheels 254 to the bars (see FIG. 5). For example, a pair of moving devices is provided on both sides of the upper bar 251 in the width direction. Similarly, a pair of moving devices is provided on both sides of the lower bar 252 in the width direction (note that the moving device that moves the lower bar 252 is not shown in FIG. 1). The upper bar 251 and the lower bar 252 can be moved up and down by an elevator device (not shown) to move toward and away from each other. Moreover, the upper bar 251 and the lower bar 252 can simultaneously reciprocate in the conveying direction (move upstream and downstream in the conveying direction). The moving device for moving the bar is not limited to rails and wheels. For example, a mechanical element (not shown) that converts rotational motion into linear motion may be used as the moving device. Examples of the mechanical element include a combination of a motor and a ball screw, or a combination of a rack and pinion. Fig. 5 is an end view showing the state in which the upper bar 251 and the lower bar 252 are approaching each other and gripping the conveying sheet 2 and the original film web 1, and Fig. 6 is an end view showing the state in which the upper bar 251 and the lower bar 252 are separated from the conveying sheet 2 and the original film web 1. Note that the end view shows only the shape of the cross section and does not show the shape behind the cross section. In Fig. 5, a gap equivalent to the thickness of the adhesive tape 3 is shown between the upper bar 251 and the surface of the original film web 1, but it should be noted that in reality, the thickness of the adhesive tape 3 is small and the upper bar 251 is in contact with the surface of the original film web 1. As shown in Figures 1 and 5, the clamp 25 (upper bar 251 and lower bar 252) grasps the conveying sheet 2 and the film roll 1 connected by adhesive tape 3 near the connecting portion 45, moves downstream in synchronization with the conveying sheet 2 in that state, and then releases the grasp as shown in Figure 6.

[0033] <Connector for manufacturing equipment> The connecting portion 45 of the manufacturing apparatus A is a portion where the adhesive tape 3 is applied. In this embodiment, the connecting portion 45 is a part of the first conveying roller 21 of the conveying portion 5. Specifically, the film web 1 supplied to the conveying sheet 2 from below the surface of the conveying sheet 2 makes strong contact with the surface of the conveying sheet 2 at the upper end of the first conveying roller 21. Similarly, the adhesive tape 3 supplied to the conveying sheet 2 from above the film web 1 but below the surface of the conveying sheet 2 makes strong contact with the surface of the conveying sheet 2 and the end of the film web 1 at the upper end of the first conveying roller 21. The adhesive tape 3 supplied by the first tape supply unit 43-1 is applied across the surface of the first widthwise end 1a of the film web 1 and the surface of the conveying sheet 2, connecting the first end 1a to the conveying sheet 2 (see FIG. 4). The adhesive tape 3 supplied by the second tape supply unit 43-2 is applied across the surface of the second widthwise end 1b of the film web 1 and the surface of the conveying sheet 2, connecting the second end 1b to the conveying sheet 2. In this embodiment, the upper end of the first conveying roller 21 corresponds to the connecting unit 45. The film web 1 connected to the conveying sheet 2 via the adhesive tape 3 is conveyed downstream while being gripped by the clamps 25.

[0034] <Cutting processing section of manufacturing equipment> The cutting processing section 6 of the manufacturing apparatus A cuts the raw film 1 to form the film product B. The cutting processing section 6 has a cutting blade 611 that cuts the raw film web 1. The raw film web 1 connected to the conveying sheet 2 by the adhesive tape 3 is cut by the cutting blade 611 and divided into a plurality of film products B. The cutting processing section 6 includes a cutter unit 61 having the cutting blade 611 and a base plate 612, and a receiving table 62 disposed opposite the cutter unit 61. FIG. 7 is a perspective view of the cutter unit 61. The base plate 612 is substantially flat, and the cutting blade 611 is fixedly mounted on the base plate 612. The cutting blade 611 has an endless annular shape in plan view. As shown in the enlarged view of FIG. 7, the cutting blade 611 typically has a sharply pointed cutting edge and becomes thicker toward the base plate 612. For example, a Thomson blade can be used as the cutting blade 611. Generally, multiple cutting blades 611 are provided on one base plate 612 to punch out multiple film products B in one press. FIG. 2 illustrates a cutter unit 61 that forms a total of 10 film products B in one press, five in the width direction and two in the conveyance direction. Of course, this number is not limited to this.

[0035] The cutter unit 61 advances and retreats in a direction approximately perpendicular to the surface of the film web 1 by a drive unit (not shown). The cutter unit 61 in the illustrated example is a press type that punches out the film web 1. In FIG. 1, the movement of the cutter unit 61 is indicated by arrows. The receiving table 62 is made of, for example, a steel plate with excellent strength. The receiving table 62 is fixed to a frame (not shown) of the manufacturing device A or the like. The receiving table 62 is arranged on the back side of the conveying sheet 2. The cutter unit 61 is not limited to a press type, and may be, for example, a rotary die (not shown). The cutter unit 61 may be any cutter that can cut the raw film 1 in the thickness direction, and is not limited to a rotary type such as the press type or rotary die.

[0036] In the cutting processing section 6, the cutting blade 611 of the cutter unit 61 is pressed against the surface of the film web 1, creating a cutting line in the plane of the film web 1 that has the same shape as the cutting blade 611 in a planar view. The area surrounded by this cutting line is the film product B. On the downstream side of the cutting processing section 6, as shown in FIG. 2, the plane of the film web 1 is divided into the film product B and the residual film 19. The cutting line formed in the film web 1 by the cutting blade 611 divides the plane of the film web 1 into the film product B and the residual film 19. The residual film 19 remains around the film product B (the area surrounded by the cutting line) formed in the plane of the film web 1. The residual film 19 includes a first end 1a and a second end 1b in the width direction of the film web 1. The first end 1a and the second end 1b in the width direction of the film web 1 are both strip-shaped portions extending in the longitudinal direction of the film web 1. In addition, in the illustrated example, the residual film 19 has the first end 1a and second end 1b, and a mesh-like portion 1c that spans between the two ends 1a, 1b and has holes (holes corresponding to the film product B) extending vertically and horizontally.

[0037] <Residue removal section and tape peeling section of manufacturing equipment> The residue removal unit 7 of the manufacturing apparatus A is arranged downstream of the cutting processing unit 6, and winds up and removes the residue film 19. The tape peeling unit of the manufacturing apparatus A is also arranged downstream of the cutting processing unit 6, and peels the adhesive tape 3 from the conveying sheet 2. In this embodiment, the residue removing unit 7 also serves as a tape peeling unit. That is, the residue removing unit 7 winds up the residue film 19 including the first end 1a and the second end 1b in the width direction of the original film 1 together with the adhesive tape 3. FIG. 8 is an enlarged side view of the residue removing unit 7 of the manufacturing apparatus A, and FIG. 9 is a front view of the residue removing unit 7. As shown in FIG.

[0038] 1, 2, 8, and 9, the residue removal unit 7 includes a separating member 71 for separating the residual film 19 from the film product B, and a recovery roller 72 for winding up the residual film 19. The separating member 71 is in contact with the surface of the cut film web 1 being transported by the transport unit 5. The separating member 71 is a linear rod extending in the width direction of the film web 1 and is at least longer than the width of the film web 1. The separating member 71 is, for example, a hollow or solid cylindrical body (such as a shaft). The separating member 71 is, for example, disposed substantially parallel to the width direction of the film web 1, but may also be disposed at an angle relative to the width direction. Both ends of the separating member 71 are supported by bearings (not shown). The bearings are fixed to a frame (not shown) of the manufacturing apparatus A, for example. The separating member 71 may be rotatably supported by the bearings via bearings, or may be fixedly supported by the bearings. The recovery roller 72 is disposed above the conveying sheet 2, for example. The residual film 19 is inverted by the separating member 71, pulled out upward, and taken up by the recovery roller 72. At this time, the residual film 19 is taken up by the recovery roller 72 with the adhesive tape 3 still attached to the surface of each of the first end 1a and the second end 1b. The residual film 19 with the adhesive tape 3 attached may be taken up with the back surface of the adhesive layer 32 of the adhesive tape 3 facing inward, or may be taken up with the back surface of the adhesive layer 32 facing outward. Since this allows the residual film 19 to be neatly taken up by the recovery roller 72, it is preferable to take up the residual film 19 with the back surface of the adhesive layer 32 of the adhesive tape 3 facing inward, as in the illustrated example.

[0039] <Product Recovery Department for Manufacturing Equipment> The product recovery section 8 of the manufacturing apparatus A is located downstream of the residue removal section 7. The product recovery section 8 has a conveyor 81 that transports the film products B remaining on the line after the adhesive tape 3 and the residue film 19 have been removed, and an accumulation section 82 that recovers the film products B on the conveyor 81. The conveyor 81 is, for example, composed of an endless belt. The accumulation section 82 collects the film products B for each row and boxes them, for example.

[0040] <Manufacturing method for film products> The method for producing a film product B of the present invention includes a conveying step of conveying a long strip-shaped raw film 1 including an optical film to a cutting zone Z3 by a conveying sheet 2, and a cutting step of cutting the raw film 1 in the cutting zone Z3 to form a plurality of film products B. The present invention is characterized in that the raw film 1 is cut in a state in which a first end 1a and a second end 1b in the width direction of the raw film 1 are joined to the conveying sheet 2 using adhesive tape 3. The production method of the present invention can be carried out using, for example, the production apparatus A described above.

[0041] 1 and 2, the film web 1 and the adhesive tape 3 are supplied to the conveying section 5 by the film supply section 41 and the tape supply section 43. The film web 1 contacts the surface of the conveying sheet 2 at the first conveying roller 21 (connecting section 45) of the conveying section 5. Because the film web 1 is supplied from below the surface of the conveying sheet 2, the film web 1 tightly adheres to the surface of the conveying sheet 2 at the first conveying roller 21 (connecting section 45). The adhesive tape 3 supplied from the first tape supply section 43-1 contacts the surface of the first widthwise end 1a of the film web 1 and the surface of the conveying sheet 2 at the first conveying roller 21 (connecting section 45). Because the adhesive tape 3 is supplied from below the surface of the conveying sheet 2, the adhesive layer 32 of the adhesive tape 3 tightly adheres to the surface of the first widthwise end 1a of the film web 1 and the surface of the conveying sheet 2 at the first conveying roller 21 (connecting section 45). As a result, the adhesive layer 32 of the adhesive tape 3 is pressed against the first widthwise end 1a of the film web 1 and the surface of the conveying sheet 2, and as a result, the first widthwise end 1a of the film web 1 and the conveying sheet 2 are connected via the adhesive tape 3. Similarly, the adhesive tape 3 supplied from the second tape supply unit 43-2 contacts the surface of the second widthwise end 1b of the film web 1 and the surface of the conveying sheet 2 at the first conveying roller 21 (connecting portion 45). Because the adhesive tape 3 is supplied from below the surface of the conveying sheet 2, the adhesive layer 32 of the adhesive tape 3 tightly adheres to the surface of the second widthwise end 1b of the film web 1 and the surface of the conveying sheet 2 at the first conveying roller 21 (connecting portion 45). As a result, the adhesive layer 32 of the adhesive tape 3 is pressed against the second widthwise end 1b of the film roll 1 and the surface of the conveying sheet 2, and as a result, the second widthwise end 1b of the film roll 1 and the conveying sheet 2 are connected via the adhesive tape 3.

[0042] 4, the overlap width 3-1W of the adhesive tape 3 with the film web 1 and the overlap width 3-2W of the adhesive tape 3 with the conveying sheet 2 are not particularly limited and are each independently, for example, 5 mm or more and 75 mm or less, and preferably 15 mm or more and 50 mm or less. The overlap width 3-1W of the adhesive tape 3 with the film web 1 and the overlap width 3-2W of the adhesive tape 3 with the conveying sheet 2 may be approximately the same, or one of the widths may be smaller than the other. Since this makes it easier to peel the adhesive tape 3 from the conveying sheet 2 after the film web 1 is cut, it is preferable that the overlap width 3-2W of the adhesive tape 3 with the conveying sheet 2 be approximately the same as or smaller than the overlap width 3-1W of the film web 1.

[0043] Downstream of the connecting section 45, clamps 25 (upper bar 251 and lower bar 252) grip the film roll 1 and conveying sheet 2 integrated with the adhesive tape 3. The upper bar 251 and lower bar 252 hold down the adhesive tape 3 and other components from above and below, preventing the adhesive tape 3 from partially peeling off during conveyance. The clamps 25 gripping the film web 1 and other components move downstream at the same speed as the conveying sheet 2. The clamps 25 and conveying sheet 2 move synchronously a predetermined distance, conveying the film web 1 downstream, and then stop (see FIG. 13). The predetermined distance corresponds to the length of the film web 1 cut by the cutting unit 6 in one cycle. Simultaneously with or slightly after the conveying stops, the cutter unit 61 of the cutting unit 6 descends and cuts the film web 1. After cutting, the cutter unit 61 ascends and separates from the film web 1. The film web 1 cut by the cutting unit 6 is divided into multiple film products B and a residual film 19. The stopped clamps 25 return to their initial position (the position of the clamps 25 shown in FIG. 1) as the upper bar 251 and lower bar 252 move away from each other, as shown by the dashed line in FIG. 13. At this initial position, the clamps 25 grip the film web 1 and conveying sheet 2 integrated with the adhesive tape 3. Then, the conveying sheet 2 that had been stopped moves downstream again, and the clamps 25 that have gripped the film web 1 and the like move downstream at the same speed as the conveying sheet 2.

[0044] In synchronization with the downstream movement of the conveying sheet 2, the collection roller 72 of the residue removal section 7 rotates, and the residue film 19 is wound up around the collection roller 72. Specifically, the residue film 19, including the first end 1a and second end 1b in the width direction of the film web 1, is inverted at the separating member 71 and pulled out upward by the winding of the collection roller 72. As a result of this pulling, the adhesive tape 3 is peeled off from the conveying sheet 2, but the adhesive tape 3 remains attached to the residue film 19. Therefore, the residue film 19 with the adhesive tape 3 attached thereto is wound up around the collection roller 72. Note that the collection roller 72, which is synchronized with the movement of the conveying sheet 2, stops accordingly when the conveying sheet 2 is stopped (when the film web 1 is cut). Because the film web 1 is only in contact with the conveying sheet 2 (it is not adhered to the conveying sheet 2), the residue film 19 can be pulled out once the adhesive tape 3 is peeled off from the conveying sheet 2. After the residual film 19 has been removed from the original film 1 in this manner, a plurality of film products B remain on the line. These film products B are transported downstream by the conveyor 81 and collected in the accumulation section 82.

[0045] The manufacturing method (manufacturing apparatus A) of the present invention cuts the original film web 1 while the first and second widthwise ends 1a and 1b of the original film web 1 are connected to the conveying sheet 2 using adhesive tape 3. Therefore, when the original film web 1 is cut, the original film web 1 is aligned with the conveying sheet 2, making it less likely for wrinkles to form in the original film web 1 or for the original film web 1 to become misaligned. This makes it possible to reliably cut out a film product B that meets product specifications from the original film web 1. The manufacturing method (manufacturing apparatus A) of the present invention makes it possible to obtain a good film product B and improve production efficiency. Furthermore, because the original film web 1 and the conveying sheet 2 are connected by adhesive tape 3, when the cutter unit 61 of the cutting processing unit 6 moves away from the original film web 1, the film product B is less likely to lift up. Furthermore, since the residual film 19 is wound onto the recovery roller 72 with the adhesive tape 3 still attached, it is possible to prevent the residual film 19 from becoming unwound. Specifically, the adhesive tape 3 attached to the residual film 19 has the adhesive layer 32 exposed at the portion that has been peeled off from the conveying sheet 2. When the residual film 19 with the adhesive tape 3 attached is wound onto the recovery roller 72, the exposed adhesive layer 32 sticks in order, so the residual film 19 can be wound onto the recovery roller 72 neatly.

[0046] The second embodiment of the present invention will be described below. In this description, the configuration and effects that differ from those of the first embodiment described above will be mainly described. For similar configurations, the terms or symbols will be used as they are, and the description of the configuration may be omitted (the same applies to the third embodiment and beyond).

[0047] [Second embodiment] In the first embodiment, the cutter unit 61 of the cutting processing unit 6 cuts out a plurality of film products B so that there is a gap between each film product B. In this case, as described above, a residual film 19 is produced, which has a first end 1a and a second end 1b and a mesh-like portion 1c extending lengthwise and widthwise between the end portions 1a and 1b. The present invention is not limited to cutting out a plurality of film products B with gaps between them, as in the first embodiment. For example, as shown in FIG. 14, a plurality of film products B may be cut out so that each film product B is adjacent to the other. In this case, the gap between adjacent film products B is approximately equal to the blade thickness of the cutting blade 611, and the resulting residual film 19 consists of only the first end 1a and second end 1b in the width direction of the film web 1. 14 illustrates an example in which the conveying speed of conveyor 81 is faster than the conveying speed of conveying sheet 2. In FIG.

[0048] [Third embodiment] In each of the above embodiments, the residual film 19 is pulled upward in the residual removal unit 7, but the pulling direction of the residual film 19 is not limited to upward and can be changed as appropriate. For example, as shown in Fig. 15 , the residual film 19 may be removed from the original film roll 1 by pulling it downward. In this case, for example, by using the second conveyor roller 22 of the conveyor unit 5 and pulling the residual film 19 downward at the downstream tip of the second conveyor roller 22, the adhesive tape 3 can be peeled from the conveying sheet 2, and the residual film 19 with the adhesive tape 3 stuck thereto can be collected by the collection roller 72.

[0049] [Fourth embodiment] In each of the above embodiments, the film roll 1 and the adhesive tape 3 are supplied onto the surface of the conveying sheet 2 from below the surface of the conveying sheet 2, thereby pressing the adhesive tape 3 to the film roll 1 and the conveying sheet 2. This method is preferable because it does not require a member to press the adhesive tape 3. However, in the present invention, when the film roll 1 and the conveying sheet 2 are joined together, a member to press the adhesive tape 3 (hereinafter referred to as a pressing member) may be provided to adhere the adhesive tape 3 to them. For example, as shown in FIG. 16 , a pair of nip rollers 91, 92 may be provided in the manufacturing apparatus A as the pressing member. The nip rollers 91, 92 are arranged, for example, in a part of the conveying section 5. In the illustrated example, the nip rollers 91, 92 are arranged near the downstream side of the first conveying roller 21. By inserting the adhesive tape 3, the film web 1, and the conveying sheet 2 between the pair of nip rollers 91, 92, the first end 1a and second end 1b in the width direction of the film web 1 and the conveying sheet 2 can be joined via the adhesive tape 3. In this case, the pressing member such as the nip roller serves as the connecting section 45 of the manufacturing apparatus A. When a pressing member such as a nip roller is used, the adhesive tape 3 may be supplied onto the surface of the conveying sheet 2 from above the surface of the conveying sheet 2 as shown, or the adhesive tape 3 may be supplied onto the surface of the conveying sheet 2 substantially parallel to the surface of the conveying sheet 2 or from below the surface (not shown). Similarly, the film web 1 may be supplied from above the surface of the conveying sheet 2 (not shown), or may be supplied substantially parallel to the surface of the conveying sheet 2 as shown, or may be supplied from below the surface of the conveying sheet 2 (not shown). The lower roller 92 of the pair of nip rollers 91, 92 can be substituted with a first conveying roller 21 (not shown).

[0050] [Fifth embodiment] In the first embodiment, the conveying sheet 2 is endless, but it may also be in the form of a long strip. The long strip-shaped conveying sheet 2 is supplied to the conveying unit 5 from a sheet supply unit 47, as shown in FIG. 17 , for example. The sheet supply unit 47 has a loading unit 471 that loads the long strip-shaped conveying sheet 2 wound in a roll, and a guide roller 472 that guides the conveying sheet 2. The conveying sheet 2 is pulled out from the loading unit 471 and connected to the film web 1 via adhesive tape 3 at the connecting unit 45. The conveying sheet 2 connected via adhesive tape 3 transports the film web 1 to the cutting unit 6. After the conveying sheet 2 passes through the cutting unit 6, the adhesive tape 3 is peeled off from the conveying sheet 2, and the residual film 19 is collected together with the adhesive tape 3, and then the conveying sheet 2 is taken up by the take-up unit 49. In this embodiment, by arranging an endless blade receiving sheet 93 below the conveying sheet 2, a sheet that does not also serve as a blade receiving sheet can be used as the conveying sheet 2. When such a sheet does not also serve as a blade receiving sheet, a relatively thin conveying sheet 2 can be used. However, in this embodiment, a conveying sheet 2 that also serves as a blade receiving sheet, as in the first embodiment, can also be used.

[0051] [Sixth embodiment] In the above-described embodiments, a press-type cutter unit 61 has been exemplified as the cutting processing unit 6, but for example, as shown in FIG. 18 , a rotary die 94 may be used. The rotary die 94 has a cutting blade 611 protruding from its circumferential surface. When the rotary die 94 is used, an anvil roller 95 may be used instead of the receiving base 62. The anvil roller 95 is disposed opposite the rotary die 94. In the above-described embodiments using the press-type cutter unit 61, the conveyance of the film web 1 is stopped, the cutter unit 61 cuts the film, and the film web 1 is conveyed again, and this process is repeated. When the rotary die 94 is used, it is also possible to cut the film web 1 without stopping the conveyance of the film web 1. For example, the film web 1 connected to the conveying sheet 2 with adhesive tape 3 can be conveyed at a predetermined speed by the conveying sheet 2, and multiple film products B can be continuously cut out from the film web 1 by the rotating rotary die 94. In this case, the clamp 25 described above is omitted.

[0052] [Seventh embodiment] In each of the above embodiments, the adhesive tape 3 is attached across both widthwise ends 1a, 1b of the film roll 1 and the conveying sheet 2, but for example, the adhesive tape 3 may be attached between each of both widthwise ends 1a, 1b of the film roll 1 and the conveying sheet 2. 19 and 20 , in this embodiment, a double-sided adhesive tape is used as the adhesive tape 3. The double-sided adhesive tape 3 has adhesive layers 32 provided on both sides of a base material 31. A separator film 96 is attached to one of the adhesive layers 32 of the double-sided adhesive tape 3, and the double-sided adhesive tape 3 is wound into a roll with the separator film 96 facing outward. The rolled adhesive tape 3 is set in a loading unit 431. A first tape supply unit supplies the double-sided adhesive tape 3 to a first widthwise end 1a of the original film 1, and a second tape supply unit supplies the double-sided adhesive tape 3 to a second widthwise end 1b of the original film 1. The double-sided adhesive tape 3 with the separator film attached is pulled out from the loading unit 431 of the first tape supply unit, and the separator film 96 is peeled off and collected midway through the process to expose the adhesive layers 32 on both sides (the direction in which the separator film 96 is collected is indicated by the outline arrow in FIG. 19 ). The first tape supply unit supplies the double-sided adhesive tape 3 with the exposed adhesive layer 32 between the back surface of the first widthwise end 1a of the film web 1 and the front surface of the conveying sheet 2. The double-sided adhesive tape 3 with the separator film is pulled out from the loading unit 431 of the second tape supply unit, and the separator film 96 is peeled off and collected midway, exposing the adhesive layer 32 on both sides. The second tape supply unit supplies the double-sided adhesive tape 3 with the exposed adhesive layer 32 between the back surface of the second widthwise end 1b of the film web 1 and the front surface of the conveying sheet 2. In the connecting unit 45, the first widthwise end 1a and second widthwise end 1b of the film web 1 and the conveying sheet 2 are connected together via the double-sided adhesive tape 3 (see Figure 20). Thereafter, similarly, adhesive The film roll 1 joined to the conveying sheet 2 via the tape 3 is transported to the cutting processing section 6 and cut. When removing the residual film 19, the double-sided adhesive tape 3 is peeled off from the conveying sheet 2 and taken up together with the residual film 19 by a recovery roller 72.

[0053] Two or more configurations (embodiments) selected from the various embodiments described above may be combined as appropriate, or one or more configurations selected from the various embodiments described above may be replaced with other embodiments. For example, a portion of the configuration shown in the second embodiment may be replaced with a portion of the configuration of the third embodiment. [Explanation of symbols]

[0054] A Film product manufacturing equipment B Film Products 1 roll of film 1a: First end in the width direction of the film roll 1b Second end in the width direction of the film roll 19 Residual film 2 conveyor sheets 3 adhesive tape 41 Film supply section of manufacturing equipment 43 Tape supply section of manufacturing equipment 43-1 First tape supply unit 43-2 Second tape supply unit 45 Manufacturing equipment connection part 5. Manufacturing equipment transport section 6. Cutting processing section of manufacturing equipment 7. Residue removal section of manufacturing equipment 8. Product recovery section of manufacturing equipment

Claims

1. a conveying step of conveying a long strip of film raw material including an optical film to a cutting zone by a conveying sheet; a cutting step of cutting the raw film in the cutting zone to form a plurality of film products, Pull out the long strip of adhesive tape wound on the roll, A method for manufacturing a film product, comprising cutting the film roll while the first and second widthwise ends of the film roll and the conveying sheet are connected to each other using the adhesive tape.

2. 2. The method for manufacturing a film product according to claim 1, wherein in the conveying process, the film roll and adhesive tape are supplied onto the surface of the conveying sheet from below the surface of the conveying sheet, thereby connecting the first and second widthwise ends of the film roll to the conveying sheet using the adhesive tape.

3. 3. The method for manufacturing a film product according to claim 1, wherein after cutting the film roll, the adhesive tape is peeled off from the conveying sheet while pulling out the remaining film including the first end and second end in the width direction of the film roll, thereby winding up the remaining film with the adhesive tape still attached.

4. a conveying step of conveying a long strip of film raw material including an optical film to a cutting zone by a conveying sheet; a cutting step of cutting the raw film in the cutting zone to form a plurality of film products, In the conveying step, the film roll and the adhesive tape are respectively supplied from below the surface of the conveying sheet onto the surface of the conveying sheet, thereby joining the first end and second end of the film roll in the width direction to the conveying sheet using the adhesive tape, In the cutting step, the raw film is cut while being joined together using the adhesive tape.

5. a conveying step of conveying a long strip of film raw material including an optical film to a cutting zone by a conveying sheet; a cutting step of cutting the raw film in the cutting zone to form a plurality of film products, cutting the film roll while the first and second widthwise ends of the film roll and the conveying sheet are joined together using adhesive tape; A method for manufacturing a film product, in which after cutting the film roll, the adhesive tape is peeled off from the conveying sheet while pulling out the remaining film including the first end and second end in the width direction of the film roll, and the remaining film is wound up with the adhesive tape still attached.

6. a conveying unit having a conveying sheet that conveys a long strip of film material including an optical film to a cutting processing unit; a tape supply unit that supplies a long strip of adhesive tape wound on a roll to the connecting unit; the connecting portion connecting the first end and the second end in the width direction of the film web to the conveying sheet with the adhesive tape, respectively; the cutting processing section having a cutting blade that cuts the raw film connected to the conveying sheet by the adhesive tape.

7. a film supply unit that supplies the raw film to the conveying unit; the film supply unit supplies the film roll to the connecting unit from below the surface of the conveying sheet; The film product manufacturing device according to claim 6 , wherein the tape supply unit supplies the adhesive tape to the connecting unit from below the surface of the conveying sheet.

8. 8. The film product manufacturing apparatus according to claim 6 or 7, further comprising a residue removal section arranged downstream of the cutting processing section and winding up a residue film including a first end and a second end in the width direction of the film roll together with the adhesive tape.

9. a conveying unit having a conveying sheet that conveys a long strip of film material including an optical film to a cutting processing unit; a film supply unit that supplies the raw film to the conveying unit; a tape supply unit that supplies adhesive tape; a connecting portion that connects a first end portion and a second end portion of the film web in the width direction to the conveying sheet with the adhesive tape, respectively; the cutting processing unit having a cutting blade that cuts the film roll connected to the conveying sheet by the adhesive tape, the film supply unit supplies the film roll to the connecting unit from below the surface of the conveying sheet; The apparatus for manufacturing a film product, wherein the tape supply unit supplies the adhesive tape to the connecting unit from below the surface of the conveying sheet.

10. a conveying unit having a conveying sheet that conveys a long strip of film material including an optical film to a cutting processing unit; a tape supply unit that supplies adhesive tape; a connecting portion that connects a first end portion and a second end portion of the film web in the width direction to the conveying sheet with the adhesive tape, respectively; the cutting processing section having a cutting blade that cuts the film roll connected to the conveying sheet by the adhesive tape; a residual removal unit that is arranged downstream of the cutting processing unit and that winds up residual film including the first end and second end in the width direction of the film roll together with the adhesive tape.

Images