JP7726638B2 - Film product manufacturing method and manufacturing device - Google Patents

Description

The present invention relates to a film product manufacturing method and apparatus for forming multiple film products from a raw film roll.

Optical films have been used in image display devices such as liquid crystal display devices and organic 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 of the image display device, etc., 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.

For example, Patent Document 1 discloses a device that transports a long strip, punches the strip with a cutting blade, and peels off the strip waste that is produced after punching by turning it over at an angle of approximately 45 degrees.

Japanese Patent Application Laid-Open No. 2001-335235

However, when raw film is punched with a cutting blade to obtain film products, problems such as wrinkles forming in the raw film or the raw film being displaced from its designated position can occur. Long, strip-shaped raw film is particularly susceptible to wrinkles and displacement because it is pulled along its length during transport. When 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).

The object of the present invention is to provide a film product manufacturing method and film product manufacturing apparatus that can effectively reduce the occurrence of defective products when cutting raw film, including optical film, to form film products.

The first 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, and the film raw material is cut while the first and second widthwise ends of the film raw material are connected to the conveying sheet using adhesive tape.

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 first preferred 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 process in which a long, strip-shaped film roll including an optical film is conveyed to a cutting zone by a conveying sheet, and a cutting process in which the film roll is cut in the cutting zone to form multiple film products.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, and in the cutting process, the film roll is cut while still connected using the adhesive tape.
The third film product manufacturing method of the present invention includes a conveying step of conveying a long, strip-shaped film roll including an optical film to a cutting zone using a conveying sheet, and a cutting step of cutting the film roll in the cutting zone to form multiple film products.The film roll is cut while the first and second widthwise ends of the film roll are connected to the conveying sheet using adhesive tape, and after cutting the film roll, the adhesive tape is peeled off from the conveying sheet and the remaining film including the first and second widthwise ends of the film roll is pulled out, thereby winding up the remaining film with the adhesive tape still attached.

According to another aspect of the present invention, there is provided an apparatus for producing a film product.
The first 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 a long strip of adhesive tape wound on a roll to a connecting section , the 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 by the adhesive tape.

A preferred first manufacturing apparatus of the present invention 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 first manufacturing apparatus of the present invention has a 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 first preferred manufacturing apparatus of the present invention further includes a tape peeling unit that is arranged downstream of the cutting processing unit and peels the adhesive tape from the conveying sheet.
A preferred first manufacturing apparatus of the present invention further includes a residue removal section that is arranged downstream of the cutting processing section and that winds up the residue film including the first end and second end in the width direction of the film roll 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 unit having a conveying sheet that conveys a long strip of film raw material including an optical film to a cutting processing unit, a tape supplying unit that supplies adhesive tape, a connecting unit that connects the first and second widthwise ends of the film raw material to the conveying sheet with the adhesive tape, the cutting processing unit having a cutting blade that cuts the film raw material connected to the conveying sheet with the adhesive tape, and a residue removing unit that is arranged downstream of the cutting processing unit and winds up the residual film including the first and second widthwise ends of the film raw material together with the adhesive tape.

The manufacturing method and manufacturing apparatus of the present invention enable film products that meet product specifications to be reliably cut out from raw film, improving the production efficiency of film products.

1 is a schematic side view showing a film product manufacturing apparatus according to a first embodiment. FIG. 2 is a schematic plan view showing the manufacturing apparatus (a plan view of the manufacturing apparatus as seen from above). FIG. 2 is an enlarged side view of a portion (connector) of the manufacturing apparatus. FIG. 4 is an enlarged end view taken along line IV-IV in FIG. 2. FIG. 3 is an enlarged end view taken along line VV in FIG. 2. FIG. 10 is an enlarged end view showing the state in which the chuck is separated from the conveying sheet and the film web. FIG. 4 is a perspective view of a cutter unit including an enlarged view of a part of a cutting blade. FIG. 2 is an enlarged side view of a portion (residue removal section) of the manufacturing apparatus. FIG. 2 is a front view of the residue removal unit of the manufacturing apparatus (a front view seen from the direction of the white arrow IX in FIG. 1 ). FIG. FIG. 2 is a schematic side view showing the layer structure of an original film according to one example. FIG. 10 is a schematic side view showing the layer structure of a raw film according to another example. FIG. 4 is a schematic side view showing a process of cutting a raw film by a cutting processing unit of the manufacturing apparatus. FIG. 6 is a schematic plan view showing a film product manufacturing apparatus according to a second embodiment. FIG. 10 is a schematic side view showing a film product manufacturing apparatus according to a third embodiment. FIG. 10 is a schematic side view showing a film product manufacturing apparatus according to a fourth embodiment. FIG. 10 is a schematic side view showing a film product manufacturing apparatus according to a fifth embodiment. FIG. 13 is a schematic side view showing a film product manufacturing apparatus according to a sixth embodiment. FIG. 13 is a schematic side view showing a film product manufacturing apparatus according to a seventh embodiment. FIG. 20 is an enlarged end view taken along line XX-XX in FIG. 19.

In this specification, "downstream side" refers to the leading side of the film roll in the conveying direction, and "upstream side" refers to the opposite side. Furthermore, "width direction" refers to the direction perpendicular to the conveying direction of the film roll. Furthermore, in this specification, "film" and "sheet" both refer to flexible, thin webs, and the two terms are essentially synonymous.

[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 a film web 1 and the like to a production line, a film conveying zone Z2 that conveys the film web 1 downstream using a conveying sheet 2, a cutting zone Z3 that cuts the film web 1 to form a plurality of film products B, a removal zone Z4 that winds up and removes residual film 19 from the 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 film web 1 and the conveying sheet 2 with adhesive tape 3.

1 to 3 , the manufacturing apparatus A can be roughly classified by configuration as follows: a film supply unit 41 that supplies a film web 1 containing an optical film, a tape supply unit 43 that supplies adhesive tape 3, a connect 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, connect 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 in which 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.

[First embodiment]
<Film supply section of the 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 original film web 1 to the conveying unit 5. The film supply unit 41 has a loading unit 411 into which the original film web 1 is loaded, and a guide roller 412 that guides the original film web 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 original film web 1 to the connecting unit 45 from below the surface of the conveying sheet 2.

As shown in Figure 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 short side. The length of the raw film web 1 in the longitudinal direction 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 short side 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.

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 and 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 original optical film that does not have the pressure-sensitive adhesive layer 12 and the separator film 13 (not shown).

The optical film 11 includes an optically functional film. Examples of such optically functional films include polarizers, retardation films, light diffusion films, brightness enhancement films, anti-glare films, and light reflection films. Polarizers are films that transmit light vibrating in a specific direction (polarized light) and block light vibrating in other directions. Retardation films are films that exhibit optical anisotropy, and typical examples include stretched films of acrylic resins, cycloolefin resins, and cellulose resins. 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.

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 each film may be bonded 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, for example, along with the pressure-sensitive adhesive layer 15. The surface protection film 14 and adhesive layer 15 are provided as needed, so a raw film roll without the surface protection film 14 and adhesive layer 15 may also be used.

In the film stock 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 (the 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 film stock that does not have the surface protection film 16 and the adhesive layer 17 may also be used.
The optical film 11 is not limited to the layer configuration shown in Figures 11 and 12 and can be modified in various ways. 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.

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.

The separator film 13 is not particularly limited, but typically a film that does not include an optically functional film is 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, from 5 μm to 200 μm, and preferably from 10 μm to 100 μm.

<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) have a loading unit 431 into which the adhesive tape 3 is loaded, 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, for example, wound in a roll with the adhesive layer on the inside. The adhesive tape 3 is pulled out of the loading section 431 by the pulling of the conveying unit 5, and the adhesive tape 3 connects the film web 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.

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 web 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 applied 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 the second end 1b in the width direction of the film web 1 are end portions extending in the longitudinal direction on both sides 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 not processed into the film product B when cut, but are removed as a residual film 19.

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 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 is not adhesive. 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 to 150 mm, preferably 30 mm to 100 mm, and more preferably 40 mm to 80 mm. The adhesive tape 3 having the width 3W can be well attached across the widthwise end of the film roll 1 and the conveying sheet 2.

The substrate 31 of the adhesive tape 3 is not particularly limited, and can 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 is, for example, 10 μm to 200 μm, and preferably 15 μm to 100 μm. The material of the adhesive layer 32 of the adhesive tape 3 is not particularly limited, and can be 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 is, for example, 0.1 μm to 50 μm, and preferably 1 μm to 30 μm. The adhesive layer 32 of the adhesive tape 3 can be colorless and transparent, colored and transparent, or opaque.

The adhesive layer 32 of the adhesive tape 3 is composed of an adhesive that has adhesive strength sufficient to adhere to both the film roll 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 approximately the same as, or smaller or larger than, the adhesive strength of the adhesive layer 32 to the film roll 1. Since this makes it easier to peel the adhesive tape 3 from the conveying sheet 2 alone after cutting the film roll 1, it is preferable that the adhesive strength of the adhesive layer 32 to the conveying sheet 2 be smaller than the adhesive strength of the adhesive layer 32 to the film roll 1.

The adhesive strength of the adhesive layer 32 to the conveying sheet 2 and the film roll 1 is, independently, for example, 0.2 N/25 mm or more and 20 N/25 mm or less, and preferably 2 N/25 mm or more and 15 N/25 mm or less. In particular, the adhesive strength of the adhesive layer 32 to the conveying sheet 2 is preferably 1 N/25 mm or more and 5 N/25 mm or less, and the adhesive strength of the adhesive layer 32 to the film roll 1 is preferably 3 N/25 mm or more and 7 N/25 mm or less. An adhesive tape 3 having such adhesive strength can adhere to the film roll 1 and the conveying sheet 2 and can be easily peeled from the conveying sheet 2. However, the adhesive strength of the adhesive layer 32 to the conveying sheet 2 is measured in accordance with JIS Z 0237 by cutting the 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 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 adhesive layer 32 to the film roll 1 is also measured by similarly attaching the test piece to the surface of the film roll 1 and conducting the peel test.

<Transportation section of manufacturing equipment>
The transport section 5 transports the raw film 1 to the cutting zone Z3 (cutting processing section 6).
The conveying section 5 includes 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 located upstream of the cutting processing section 6 (cutting zone Z3), and the second conveying roller 22 is located downstream of the cutting processing section 6. To move the conveying sheet 2, the conveying rollers are rotated 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. Typically, one or more additional rollers (e.g., support rollers) are located 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 fed in the conveying direction following the conveying sheet 2. In the manufacturing apparatus A of this embodiment, since the cutting processing section 6 is of a press type as will be described later, 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.

The material of the conveying sheet 2 is not particularly limited, and may be a synthetic resin sheet, a rubber sheet, a nonwoven fabric, or the like, with a synthetic resin sheet being particularly preferred. Examples of the synthetic resin sheet include a styrene-based resin sheet such as polystyrene; a polyolefin-based resin sheet such as polyethylene or polypropylene; a polyester-based resin sheet such as polyethylene terephthalate; a polyamide-based resin sheet such as nylon 66; and a polyvinyl chloride-based resin sheet such as polyvinyl chloride. A laminated sheet in which two or more 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 sufficient strength and/or thickness to withstand the cutting edge of the cutting blade 611 entering the sheet. In other words, since the cutting edge of the cutting blade 611 may enter the conveying sheet 2 in the cutting processing section 6, a sheet having a material and/or thickness that will not cause the conveying sheet 2 to break when the cutting edge enters the sheet is used. The thickness of such a conveying sheet 2 is set as appropriate, but is, for example, 0.4 mm to 2 mm, and preferably 0.5 mm to 0.8 mm.

The conveying section 5 also has a clamp 25 that grips the conveying sheet 2 and the film web 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 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 includes, for example, rails 253 extending in the conveying direction of the film web 1, wheels 254 that roll on the rails 253, and connectors 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 (not shown) to move toward and away from each other. Furthermore, 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 upper bar 251 and the lower bar 252 approaching each other and gripping the conveying sheet 2 and the film web 1, while Fig. 6 is an end view showing the upper bar 251 and the lower bar 252 moving away from the conveying sheet 2 and the 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 corresponding to the thickness of the adhesive tape 3 is shown between the upper bar 251 and the surface of the 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 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.

<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 unit 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 .

<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 film web 1. The 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 increases in thickness 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 a single press. FIG. 2 illustrates a cutter unit 61 that forms a total of 10 film products B in a single press, five in the width direction and two in the conveying direction. Of course, this number is not limited to this.

The cutter unit 61 advances and retreats in a direction approximately perpendicular to the surface of the film web 1 by a drive device (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 type 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.

In the cutting processing section 6, the cutting blade 611 of the cutter section 61 is pressed against the surface of the film reel 1, creating a cutting line within the film reel 1 that has the same shape as the cutting blade 611 in a planar view. The area surrounded by this cutting line is film product B. On the downstream side of the cutting processing section 6, as shown in FIG. 2, the surface of the film reel 1 is divided into film product B and residual film 19. The cutting line formed in the film reel 1 by the cutting blade 611 divides the surface of the film reel 1 into film product B and residual film 19. The residual film 19 remains around film product B (the area surrounded by the cutting line) formed within the surface of the film reel 1. The residual film 19 includes a first widthwise end 1a and a second widthwise end 1b of the film reel 1. Both the first widthwise end 1a and the second widthwise end 1b of the film reel 1 are strip-shaped portions extending longitudinally of the film reel 1. 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 end portions 1a and 1b, has holes (holes corresponding to film product B), and extends vertically and horizontally.

<Residue Removal Section and Tape Peeling Section of Manufacturing Equipment>
The residue removal unit 7 of the manufacturing device A is located downstream of the cutting processing unit 6 and winds up and removes the residue film 19. The tape peeling unit of the manufacturing device A is located 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 1 a and the second end 1 b 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.

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 contacts the surface of the cut film web 1 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 collection 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 collection roller 72. At this time, the residual film 19 is taken up by the collection roller 72 with the adhesive tape 3 still attached to the surfaces 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. Because this allows the residual film 19 to be neatly taken up by the collection 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.

<Product recovery section of 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 a collecting section 82 that collects the film products B on the conveyor 81. The conveyor 81 is, for example, composed of an endless belt. The collecting section 82 collects the film products B for each row and boxes them, for example.

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

1 and 2, the film web 1 and adhesive tape 3 are supplied to the conveying unit 5 by the film supply unit 41 and tape supply unit 43. The film web 1 contacts the surface of the conveying sheet 2 at the first conveying roller 21 (connecting unit 45) of the conveying unit 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 unit 45). Furthermore, the adhesive tape 3 supplied from the first tape supply unit 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 unit 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 unit 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 (connector 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 (connector 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.

Referring to Figure 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 cutting the film web 1, 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 adhesive tape 3 with the film web 1.

Downstream of the connecting portion 45, a clamp 25 (upper bar 251 and lower bar 252) grips the film roll 1 and conveying sheet 2 integrated with the adhesive tape 3. The upper bar 251 and lower bar 252 press down the adhesive tape 3 and the like from above and below, preventing the adhesive tape 3 from being partially peeled 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). This 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.

In synchronization with the downstream movement of the conveying sheet 2, the collection roller 72 of the residue removal unit 7 rotates, winding up the residue film 19 onto 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 onto 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 by peeling the adhesive tape 3 from the conveying sheet 2.
After the residual film 19 has been removed from the film roll 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.

The manufacturing method (manufacturing apparatus A) of the present invention cuts the film web 1 while the first and second widthwise ends 1a and 1b of the film web 1 are connected to the conveying sheet 2 using adhesive tape 3. Therefore, when the film web 1 is cut, the film web 1 is aligned with the conveying sheet 2, making it less likely for wrinkles to form in the film web 1 or for the film web 1 to become misaligned. This ensures that a film product B that meets product specifications can be reliably cut out of the film web 1. The manufacturing method (manufacturing apparatus A) of the present invention can produce a good film product B and improve production efficiency. Furthermore, because the 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 film web 1, the film product B is less likely to lift up.
Furthermore, since the residual film 19 is wound around the collection 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 around the collection roller 72, the exposed adhesive layer 32 sticks in order, so that the residual film 19 can be neatly wound around the collection roller 72.

The second embodiment of the present invention will be described below. In this description, we will mainly focus on the configuration and effects that differ from the first embodiment described above. For similar configurations, the same terms or symbols will be used and descriptions of those configurations may be omitted (the same applies to the third and subsequent embodiments).

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 vertically and horizontally 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.

[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 Figure 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 conveying roller 22 of the conveying unit 5 and pulling the residual film 19 downward at the downstream tip of the second conveying roller 22, the adhesive tape 3 can be peeled from the conveying sheet 2, and the residual film 19 with the adhesive tape 3 attached thereto can be collected by the collection roller 72.

[Fourth embodiment]
In each of the above embodiments, the film web 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 web 1 and the conveying sheet 2. This method is preferable because it does not require a member for pressing the adhesive tape 3. However, in the present invention, when the film web 1 and the conveying sheet 2 are joined together, a member for pressing the adhesive tape 3 (hereinafter referred to as a pressing member) may be provided to bond the adhesive tape 3 to them.
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 downstream of and near 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 1 a and second end 1 b in the width direction of the film web 1 can be joined to the conveying sheet 2 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 in the figure, 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 in the figure, 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 may be replaced by the first conveying roller 21 (not shown).

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 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 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 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.

Sixth Embodiment
In each of the above 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.

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 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 substrate 31. A separator film 96 is affixed 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 section 431. A first tape supply section supplies the double-sided adhesive tape 3 to a first widthwise end 1a of the original film 1, and a second tape supply section 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 section 431 of the first tape supply section, and the separator film 96 is peeled off and collected midway 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 adhesive layer 32 exposed, 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 attached is pulled out from the loading section 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 adhesive layer 32 exposed, 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 section 45, the first widthwise end 1a and second widthwise end 1b of the film web 1 are joined to the conveying sheet 2 via the double-sided adhesive tape 3 (see FIG. 20 ). Thereafter, the film web 1 joined to the conveying sheet 2 via the double-sided adhesive tape 3 is transported to the cutting processing section 6 and cut. When the residual film 19 is removed, the double-sided adhesive tape 3 is peeled off from the conveying sheet 2 and taken up together with the residual film 19 by the recovery roller 72 .

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, some of the configuration shown in the second embodiment may be replaced with some of the configuration in the third embodiment.

A Film product manufacturing apparatus B Film product 1 Film roll 1a First end in width direction of film roll 1b Second end in width direction of film roll 19 Residual film 2 Conveying sheet 3 Adhesive tape 41 Film supply section of manufacturing apparatus 43 Tape supply section of manufacturing apparatus 43-1 First tape supply section 43-2 Second tape supply section 45 Connecting section of manufacturing apparatus 5 Conveying section of manufacturing apparatus 6 Cutting processing section of manufacturing apparatus 7 Residue removal section of manufacturing apparatus 8 Product recovery section of manufacturing apparatus

Claims (10)

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. The method for manufacturing a film product described in claim 1, wherein, in the conveying step, the film roll and adhesive tape are each supplied from below the surface of the conveying sheet onto the surface of the conveying sheet, thereby joining the first and second widthwise ends of the film roll to the conveying sheet using the adhesive tape. The method for manufacturing a film product described in claim 1 or 2, wherein after cutting the original film, the adhesive tape is peeled off from the conveying sheet while the remaining film including the first and second widthwise ends of the original film is pulled out, and the remaining film is wound up with the adhesive tape still attached. 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. 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. 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. 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. The film product manufacturing apparatus of claim 6 or 7 further comprises a residue removal unit disposed downstream of the cutting unit and configured to wind up the residue film, including the first and second widthwise ends of the film roll, together with the adhesive tape. 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. 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.