WO2022162983A1 - Procédé de fabrication d'un produit en film et dispositif pour la fabrication de celui-ci - Google Patents

Procédé de fabrication d'un produit en film et dispositif pour la fabrication de celui-ci Download PDF

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Publication number
WO2022162983A1
WO2022162983A1 PCT/JP2021/030553 JP2021030553W WO2022162983A1 WO 2022162983 A1 WO2022162983 A1 WO 2022162983A1 JP 2021030553 W JP2021030553 W JP 2021030553W WO 2022162983 A1 WO2022162983 A1 WO 2022162983A1
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WO
WIPO (PCT)
Prior art keywords
film
adhesive tape
conveying
conveying sheet
cutting
Prior art date
Application number
PCT/JP2021/030553
Other languages
English (en)
Japanese (ja)
Inventor
順二 宗本
Original Assignee
日東電工株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日東電工株式会社 filed Critical 日東電工株式会社
Priority to CN202180091629.XA priority Critical patent/CN116761701A/zh
Priority to KR1020237021688A priority patent/KR20230135052A/ko
Publication of WO2022162983A1 publication Critical patent/WO2022162983A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B65H35/0073—Details
    • B65H35/008—Arrangements or adaptations of cutting devices
    • B65H35/0086—Arrangements or adaptations of cutting devices using movable cutting elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/40—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B65H35/002—Hand-held or table apparatus
    • B65H35/0026—Hand-held or table apparatus for delivering pressure-sensitive adhesive tape
    • B65H35/0033—Hand-held or table apparatus for delivering pressure-sensitive adhesive tape and affixing it to a surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H41/00—Machines for separating superposed webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/515—Cutting handled material
    • B65H2301/5153—Details of cutting means
    • B65H2301/51538—Die-cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/175—Plastic
    • B65H2701/1752—Polymer film

Definitions

  • the present invention relates to a film product manufacturing method and a film product manufacturing apparatus that form a plurality of film products from a film raw material.
  • optical films are used in image display devices such as liquid crystal display devices and organic EL display devices.
  • the optical film include a polarizing film containing a polarizer, a retardation film, and a light diffusion film.
  • polarizing films and the like are also used for applications other than image display devices, such as polarized sunglasses and light control windows.
  • Such an optical film is formed in a predetermined plan view shape (shape conforming to product standards) that matches the screen or the like in order to be incorporated into the screen or the like of the image display device.
  • a film product an optical film formed into a predetermined shape is called a "film product".
  • a film product is obtained, for example, by punching out a film raw material containing an optical film into a predetermined shape with a cutting blade.
  • Patent Document 1 discloses a device that conveys a long belt-shaped body, punches the belt-shaped body with a cutting blade, and peels off the strip-shaped waste generated after punching while inverting it in a direction of about 45 degrees.
  • An object of the present invention is to provide a film product manufacturing method and a film product manufacturing apparatus capable of effectively suppressing the occurrence of defective products when a film product is formed by cutting a raw film including an optical film. is.
  • the method for producing a film product of the present invention includes a conveying step of conveying a long belt-shaped original film containing an optical film to a cutting zone by a conveying sheet, and cutting the original film in the cutting zone, thereby producing a plurality of and a cutting step of forming a film product, and in a state in which the first end and the second end in the width direction of the original film and the conveying sheet are respectively connected using an adhesive tape, the original film Cut the opposite.
  • the original film and the adhesive tape are each supplied onto the surface of the conveying sheet from below the surface of the conveying sheet, so that the width of the original film is reduced.
  • the directional first end and the second end and the conveying sheet are respectively joined together using the adhesive tape.
  • the adhesive tape is attached across the surface of the first end in the width direction of the raw film and the surface of the conveying sheet, and the first end in the width direction of the raw film is attached.
  • the adhesive tape is attached across the surface of the two end portions and the surface of the conveying sheet.
  • the adhesive tape is peeled off from the conveying sheet after cutting the original film.
  • the adhesive tape is peeled off from the conveying sheet, and the residual film including the first end and the second end in the width direction of the raw film is pulled out. As a result, the residual film is wound up with the adhesive tape attached.
  • an apparatus for manufacturing film products includes a conveying unit having a conveying sheet for conveying a long belt-shaped original film containing an optical film to a cutting processing unit, a tape supply unit for supplying an adhesive tape, and the original film.
  • a connecting portion that connects the first end and the second end in the width direction and the conveying sheet with the adhesive tape, and a cutting that cuts the raw film joined to the conveying sheet by the adhesive tape. and the cutting section having a blade.
  • a preferred manufacturing apparatus of the present invention further includes a film supply unit that supplies the original film to the conveying unit, and the film supply unit connects the original film from below the surface of the conveying sheet.
  • the tape supplying section supplies the adhesive tape to the connecting section from below the surface of the conveying sheet.
  • the tape supply unit supplies the adhesive tape to the connecting unit so as to straddle the surface of the first end in the width direction of the original film and the surface of the conveying sheet.
  • a preferred manufacturing apparatus of the present invention further includes a tape peeling section arranged downstream of the cutting processing section and for peeling the adhesive tape from the conveying sheet.
  • a preferred manufacturing apparatus of the present invention further includes a residual removal section arranged downstream of the cutting processing section and winding the residual film including the widthwise first end and the second end of the original film together with the adhesive tape. have more.
  • the manufacturing method and manufacturing apparatus of the present invention it is possible to reliably cut out film products that meet the product specifications from the original film, and improve the production efficiency of film products.
  • FIG. 3 is an enlarged end view cut along line IV-IV of FIG. 2;
  • FIG. 3 is an enlarged end view cut along line VV of FIG. 2;
  • FIG. 4 is an enlarged end view showing a state in which the chuck is separated from the conveying sheet and the original film;
  • FIG. 4 is a perspective view of a cutter section including a partially enlarged view of a cutting blade; The side view which expanded a part (residual removal part) of the said manufacturing apparatus.
  • FIG. 2 is a front view of the residue removal section of the manufacturing apparatus (a front view seen from the direction of the white arrow IX in FIG. 1); The top view of a film raw fabric.
  • the schematic side view which shows the layer structure of the film original fabric which concerns on one example.
  • the schematic side view which shows the layer structure of the film original fabric which concerns on another example.
  • FIG. 4 is a schematic side view showing the process of cutting the original film by the cutting unit of the manufacturing apparatus;
  • the schematic plan view which shows the manufacturing apparatus of the film product of 2nd Embodiment.
  • FIG. 20 is an enlarged end view cut along line XX-XX of FIG. 19;
  • downstream side refers to the leading side of the original film in the transport direction
  • upstream side refers to the opposite side
  • width direction refers to a direction orthogonal to the transport direction of the original film.
  • film and sheet are both flexible thin webs, and are substantially synonymous.
  • FIG. 1 and 2 show a manufacturing apparatus A for film products B
  • FIG. 3 is an enlarged side view of a connecting portion of the manufacturing apparatus A.
  • the manufacturing apparatus A is roughly divided into areas.
  • a film transport zone Z2 for transporting downstream
  • a cutting zone Z3 for cutting the original film 1 to form a plurality of film products B
  • a removal zone for winding and removing the residual film 19 from the original film 1.
  • Z4 and a collection zone Z5 for collecting the film product B.
  • the original film 1 and the transport sheet 2 are connected with an adhesive tape 3. It has a connect zone Z6.
  • the manufacturing apparatus A includes a film supply unit 41 that supplies a raw film 1 including an optical film, and an adhesive tape 3.
  • the film supply section 41, the tape supply section 43, the connection section 45, the transport section 5, the cutting processing section 6, the residual removal section 7, and the product recovery section 8 are arranged in series on one line.
  • the manufacturing apparatus A of the present invention is not limited to the case where all of these are arranged in series, and at least one of them may be provided on another line.
  • the first end 1a and the second end 1b in the width direction of the original film 1 and the conveying sheet 2 are connected to each other using the adhesive tape 3, and the cutting processing unit
  • the main feature is that the raw film 1 is cut at 6 .
  • the film supply section 41 of the manufacturing apparatus A is arranged on the upstream side of the transport section 5 .
  • the film supply unit 41 supplies the original film 1 to the transport unit 5 .
  • the film supply section 41 has a loading section 411 for loading the original film 1 and guide rollers 412 for guiding the original film 1 .
  • the guide roller 412 is arranged below the surface of the conveying sheet 2 . That is, the film supply section 41 supplies the original film 1 to the connecting section 45 from below the surface of the conveying sheet 2 .
  • the original film 1 is in the shape of a long strip, as shown in FIG.
  • the long belt shape means a substantially rectangular shape in plan view, the length of which is sufficiently longer in the longitudinal direction than in the lateral direction.
  • the longitudinal length of the original film 1 is, for example, 5 m or more, preferably 10 m or more.
  • the longitudinal direction of the original film 1 is the conveying direction of the manufacturing apparatus A, and the lateral direction of the original film 1 is the width direction.
  • the long strip-shaped original film 1 is normally set in the loading section 411 of the film supply section 41 while being wound into a roll. The original film 1 is pulled out from the loading section 411 by the drawing of the conveying section 5 , and the original film 1 is supplied to the conveying section 5 .
  • the original film contains an optical film.
  • the raw film may be composed only of the optical film, or may have the optical film and constituent elements other than the optical film.
  • 11 and 12 exemplify the layer structure of the original film.
  • the original film has an optical film 11 , a separator film 13 , and an adhesive layer 12 interposed between the optical film 11 and the separator film 13 to bond the films 11 and 13 together.
  • the pressure-sensitive adhesive layer 12 is firmly adhered to the optical film 11 and is detachably adhered to the separator film 13 .
  • the separator film 13 can be peeled off at the interface with the adhesive layer 12 .
  • an optical film raw fabric without the pressure-sensitive adhesive layer 12 and the separator film 13 may be used (not shown).
  • the optical film 11 includes an optical functional film.
  • the optical 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 one specific direction and blocking light vibrating in other directions.
  • a retardation film is a film exhibiting optical anisotropy, and typical examples thereof include stretched films of acrylic resins, cycloolefin resins, cellulose resins, and the like.
  • the optical film 11 may include a protective film.
  • a protective film is laminated for the purpose of protecting the optical function film.
  • a colorless and transparent film is typically used as the protective film.
  • the optical film 11 has a first protective film 111, a polarizer 112, and a second protective film 113 in order from the bottom of the drawing.
  • a laminate film (optical film 11) is configured by bonding the films 111 to 113 to each other.
  • the first protective film 111 and the polarizer 112, and the polarizer 112 and the second protective film 113 are directly adhered, respectively.
  • An adhesive layer (or pressure-sensitive adhesive layer) may be interposed and each film may be adhered 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) with an adhesive layer 15 interposed therebetween.
  • the surface protective film 14 can be peeled off from the surface of the optical film 11 together with the adhesive layer 15, for example.
  • the surface protective film 14 and the adhesive layer 15 are provided as necessary, a raw film sheet without the surface protective film 14 and the adhesive layer 15 may be used.
  • the optical film 11 has a retardation film 115 .
  • a surface protective film 16 is laminated on the surface of the optical film 11 (the surface of the retardation film 115) with an adhesive layer 17 interposed therebetween.
  • 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, for example.
  • the film original fabric which does not have the surface protective film 16 and the adhesive layer 17 may be used.
  • the optical film 11 is not limited to the layer structure shown in FIGS. 11 and 12, and can be modified in various ways.
  • the optical film may include two or more layers of optical function films, or may be composed of only one layer of optical function film.
  • the adhesive layers 12, 15, and 17 provided on the optical film 11 have adhesiveness at room temperature and can be reapplied after being peeled off.
  • the adhesive layers 12, 15, 17 are made of a known adhesive.
  • the adhesive include colorless and transparent acrylic adhesives, rubber-based adhesives, silicone-based adhesives, urethane-based adhesives, vinyl alkyl ether-based adhesives, polyvinylpyrrolidone-based adhesives, polyacrylamide-based adhesives, and cellulose-based adhesives. Adhesives and the like can be mentioned.
  • the thickness of the adhesive layers 12, 15 and 17 is not particularly limited, but is, for example, 0.1 ⁇ m or more and 50 ⁇ m or less, preferably 1 ⁇ m or more and 30 ⁇ m or less.
  • the separator film 13 is not particularly limited, but usually a film that does not contain an optical function film is used.
  • the separator film 13 include resin films such as polyethylene, polypropylene, polyethylene terephthalate and polyester films; paper; porous films such as woven fabrics, non-woven fabrics and mesh fabrics; foamed resin films;
  • the separator film 13 is preferably a resin film because of its excellent surface smoothness.
  • 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.
  • the thickness of the separator film 13 is not particularly limited, and is, for example, 5 ⁇ m or more and 200 ⁇ m or less, preferably 10 ⁇ m or more and 100 ⁇ m or less.
  • the tape supply section 43 of the manufacturing apparatus A is arranged on the upstream side of the transport section 5 .
  • the tape supply section 43 supplies the adhesive tape 3 to the transport section 5 .
  • a pair of tape supply units 43 are provided in the width direction.
  • first tape supply section 43-1 first tape supply section 43-1
  • second tape supply section 43-2 second tape supply section 43-2
  • the tape supply section 43 first tape supply section 43-1 and second tape supply section 43-2
  • the adhesive tape 3 has a long strip shape.
  • the long band-shaped adhesive tape 3 is normally set in the loading section 431 of the tape supply section 43 while being wound into a roll.
  • the adhesive tape 3 is, for example, wound into a roll with the adhesive layer inside.
  • the adhesive tape 3 is pulled out from the loading section 431 by the drawing of the conveying section 5 , and the adhesive tape 3 connects the original film 1 and the conveying sheet 2 .
  • the guide roller 432 of the tape supply section 43 is arranged below the surface of the conveying sheet 2 . That is, the tape supply section 43 supplies the adhesive tape 3 to the connecting section 45 from below the surface of the conveying sheet 2 .
  • FIG. 4 is an end view showing a state in which the first widthwise end portion 1a and the second end portion 1b of the original film 1 and the conveying sheet 2 are joined together by the adhesive tape 3.
  • the end view shows only the shape of the cut surface and does not show the shape on the far side of the cut surface.
  • the tape supplying section 43 supplies the adhesive tape 3 to the connecting section 45 so that the widthwise end portion of the raw film 1 and the conveying sheet 2 can be connected using the adhesive tape 3 .
  • the adhesive tape 3 is attached across the surface of the width direction edge of the original film 1 and the surface of the conveying sheet 2 to join the edge and the conveying sheet 2 together.
  • the first tape supply unit 43-1 supplies the adhesive tape 3 to the connecting unit 45 so as to straddle the surface of the first widthwise end 1a of the original film 1 and the surface of the conveying sheet 2. do.
  • the second tape supply section 43 - 2 supplies the adhesive tape 3 to the connecting section 45 so as to straddle the surface of the widthwise second end portion 1 b of the original film 1 and the surface of the conveying sheet 2 .
  • the widthwise first end 1a and the second end 1b of the original film 1 are the ends of the original film 1 extending in the longitudinal direction on both sides in the widthwise direction.
  • the widthwise first end 1a and the second end 1b of the original film 1 are not processed into the film product B at the time of cutting, and are removed as the residual film 19 .
  • the adhesive tape 3 has a base material 31 and an adhesive layer 32 provided on one side of the base material 31 .
  • a single-sided adhesive tape is used as the adhesive tape 3.
  • the single-sided adhesive tape has an adhesive layer 32 provided only on one surface of the substrate 31, and therefore the other surface of the substrate 31 does not have adhesiveness.
  • the other surface of the substrate 31 is subjected to mold release treatment.
  • the adhesive tape 3 has a long strip shape.
  • the width 3W of the adhesive tape 3 is not particularly limited, it 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 satisfactorily attached across the widthwise end portion of the raw film 1 and the conveying sheet 2 .
  • the base material 31 of the adhesive tape 3 is not particularly limited, and resin films, papers, synthetic papers, porous films, foamed resin films, etc., such as those exemplified in the above separator film, can be used.
  • the thickness of the base material 31 is not particularly limited, and is, for example, 10 ⁇ m or more and 200 ⁇ m or less, preferably 15 ⁇ m or more and 100 ⁇ m or less.
  • the material of the adhesive layer 32 of the adhesive tape 3 is not particularly limited, and an acrylic adhesive, a rubber adhesive, or the like as exemplified for the adhesive layer of the optical film can be used.
  • the thickness of the adhesive tape 3 is not particularly limited, it is, for example, 0.1 ⁇ m or more and 50 ⁇ m or less, preferably 1 ⁇ m or more and 30 ⁇ m or less.
  • the adhesive layer 32 of the adhesive tape 3 may be colorless and transparent, colored and transparent, or opaque.
  • the adhesive layer 32 of the adhesive tape 3 is composed of an adhesive having adhesive strength sufficient to adhere to both the original film 1 and the conveying sheet 2 and to peel off from the conveying sheet 2 .
  • the adhesive tape 3 can be peeled off at least from the conveying sheet 2 .
  • the adhesive strength of the pressure-sensitive adhesive layer 32 to the conveying sheet 2 may be substantially the same as the adhesive strength of the pressure-sensitive adhesive layer 32 to the original film 1, or may be smaller or larger than that. After the raw film 1 is cut, the adhesive tape 3 can be easily peeled off only from the conveying sheet 2. Therefore, the adhesive strength of the adhesive layer 32 to the conveying sheet 2 is It is preferably smaller than the adhesive strength.
  • the adhesive strength of the adhesive layer 32 to the conveying sheet 2 and the original film 1 is independently, for example, 0.2 N/25 mm or more and 20 N/25 mm or less, preferably 2 N/25 mm or more and 15 N/25 mm. It is below.
  • 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
  • the adhesive strength of the adhesive layer 32 to the original film 1 is preferably 3 N/25 mm or more and 7 N/25 mm or less. is preferred.
  • the adhesive tape 3 having such adhesive strength can be adhered to the raw film 1 and the conveying sheet 2 and can be easily peeled off from the conveying sheet 2 .
  • the adhesive strength of the pressure-sensitive adhesive layer 32 to the original film 1 is similarly measured by attaching the test piece to the surface of the original film 1 and performing the peeling test.
  • the transport section 5 transports the original film 1 to the cutting zone Z3 (cutting processing section 6).
  • the transport unit 5 has a transport sheet 2 and transport rollers 21 and 22 for moving the transport sheet 2 .
  • the conveying sheet 2 is endless.
  • the endless conveying sheet 2 is stretched over at least two conveying rollers 21 and 22 (at least the first conveying roller 21 and the second conveying roller 22).
  • the first conveying roller 21 is arranged upstream of the cutting section 6 (cutting zone Z3), and the second conveying roller 22 is arranged downstream of the cutting section 6 .
  • the conveying roller is rotationally driven by a driving device (not shown).
  • the first conveying roller 21 is a driving roller (or driven roller), and the second conveying roller 22 is a driven roller (or driving roller). Both the first conveying roller 21 and the second conveying roller 22 may be drive rollers. In addition, one or more other rollers (eg, support rollers, etc.) are usually arranged between the first transport roller 21 and the second transport roller 22, but the other rollers are not shown.
  • the endless conveying sheet 2 rotates in one direction between the first and second conveying rollers 21 and 22 by the conveying rollers 21 and 22 .
  • the raw film 1 in contact with the conveying sheet 2 follows the conveying sheet 2 and is sent in the conveying direction.
  • the conveying rollers 21 and 22 temporarily stop after moving the conveying sheet 2 by a predetermined distance, and After the cutting process of roll 1 is completed), conveying sheet 2 is again moved by a predetermined distance, and this is repeated.
  • the material of the conveying sheet 2 is not particularly limited, and a synthetic resin sheet, a rubber sheet, a non-woven fabric, or the like can be used, and a synthetic resin sheet is particularly preferable.
  • the synthetic resin sheet include styrene resin sheets such as polystyrene; polyolefin resin sheets such as polyethylene and polypropylene; polyester resin sheets such as polyethylene terephthalate; polyamide resin sheets such as 66 nylon; vinyl chloride resin sheet; and the like.
  • a laminated sheet in which two or more kinds of resin sheets are laminated may be used. In this embodiment, since the conveying sheet 2 reaches the cutting processing section 6, it is preferable to use the conveying sheet 2 that also serves as a blade receiving sheet.
  • the blade receiving sheet refers to a sheet having strength and/or thickness to the extent that it does not break even when the cutting edge of the cutting blade 611 enters. That is, since there is a possibility that the edge of the cutting blade 611 may enter the conveying sheet 2 in the cutting processing unit 6, a sheet having a material and/or thickness that does not break when the blade enters is used as the conveying sheet 2. be done.
  • the thickness of the conveying sheet 2 is appropriately set, and is, for example, 0.4 mm or more and 2 mm or less, preferably 0.5 mm or more and 0.8 mm or less.
  • the conveying section 5 has a clamp 25 that grips the conveying sheet 2 and the original film 1 .
  • the clamp 25 includes a pair of upper and lower bars 251 and 252 (upper bar 251 and lower bar 252), a moving device for moving the bars 251 and 252 in the conveying direction, and a lifting device for moving the bars 251 and 252 in the vertical direction. (not shown) and.
  • Each of the upper bar 251 and the lower bar 252 is a straight bar extending in the width direction of the conveying sheet 2 and longer than the width of the conveying sheet 2 .
  • the upper bar 251 and the lower bar 252 are, for example, hollow or solid quadrangular prisms.
  • the moving device includes, for example, rails 253 extending along the conveying direction of the raw film 1, wheels 254 rolling on the rails 253, and connecting portions 255 connecting the wheels 254 and bars. (see FIG. 5).
  • a pair of moving devices are provided on both sides in the width direction of the upper bar 251 .
  • a pair of moving devices are provided on both sides in the width direction of the lower bar 252 (the moving device for moving 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 a lifting device (not shown) to approach and separate from each other.
  • the upper bar 251 and the lower bar 252 can simultaneously reciprocate in the conveying direction (moving upstream and downstream in the conveying direction).
  • FIG. 5 is an end view showing a state in which the upper bar 251 and the lower bar 252 are approached and the conveying sheet 2 and the original film 1 are gripped by the two bars 251 and 252.
  • FIG. 4 is an end view showing a state in which a bar 252 is separated from the conveying sheet 2 and the original film 1; FIG. The end view shows only the shape of the cut surface and does not show the shape on the far side of the cut surface.
  • 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 original film 1, but in reality the thickness of the adhesive tape 3 is small and the upper bar 251 is Note that it is in contact with the surface of the original film 1 .
  • the clamps 25 (upper bar 251 and lower bar 252), as shown in FIGS. After moving to the downstream side in synchronism with the conveying sheet 2 in this state, as shown in FIG. 6, the gripping is released.
  • a connecting portion 45 of the manufacturing apparatus A is a portion to which the adhesive tape 3 is attached.
  • the connecting portion 45 is part of the first transport rollers 21 of the transport portion 5 .
  • the raw film 1 supplied to the conveying sheet 2 from below the surface of the conveying sheet 2 strongly contacts the surface of the conveying sheet 2 at the upper end portion of the first conveying roller 21 .
  • the adhesive tape 3 supplied to the conveying sheet 2 from above the original film 1 and below the surface of the conveying sheet 2 also Strong contact with the surface and the edge of the original film 1 .
  • 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 original film 1 and the surface of the conveying sheet 2, and the first The end portion 1a and the conveying sheet 2 are joined together (see FIG. 4).
  • the adhesive tape 3 supplied by the second tape supply unit 43-2 is applied across the surface of the widthwise second end 1b of the original film 1 and the surface of the conveying sheet 2.
  • the end portion 1b and the conveying sheet 2 are joined together.
  • the upper end portion of the first conveying roller 21 corresponds to the connecting portion 45 .
  • the raw film 1 connected to the conveying sheet 2 via the adhesive tape 3 is conveyed downstream while being gripped by the clamp 25 .
  • the cutting processing section 6 of the manufacturing apparatus A cuts the original film 1 to form a film product B.
  • the cutting processing section 6 has a cutting blade 611 for cutting the original film 1 .
  • the raw film 1 joined to the conveying sheet 2 by the adhesive tape 3 is cut by a cutting blade 611 and divided into a plurality of film products B.
  • the cutting processing section 6 includes a cutter section 61 having the cutting blade 611 and the base plate 612 and a receiving table 62 arranged to face the cutter section 61 .
  • 7 is a perspective view of the cutter portion 61.
  • the base plate 612 is substantially flat, and the cutting blade 611 is fixedly provided 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 edge 611 usually has a sharp edge and becomes thicker toward the base plate 612 side. As such a cutting blade 611, for example, a Thomson blade can be used. In general, one base plate 612 is provided with a plurality of cutting blades 611 in order to punch out a plurality of film products B by one press.
  • FIG. 2 shows the cutter unit 61 for forming a total of 10 film products B, 5 in the width direction and 2 in the transport direction, in one press. Of course, it is not limited to this number.
  • the cutter section 61 is advanced in a substantially vertical direction with respect to the surface of the original film 1 and then withdrawn by a driving device (not shown).
  • the cutter part 61 in the illustrated example is of a press type that punches out the original film 1 .
  • the cradle 62 is made of, for example, a steel plate having excellent strength.
  • the cradle 62 is fixed to a frame (not shown) of the manufacturing apparatus A or the like.
  • the cradle 62 is arranged on the back side of the conveying sheet 2 .
  • the cutter part 61 is not limited to a press type, and for example, a rotary die may be used (not shown).
  • the cutter part 61 is not limited to the above-mentioned press type or rotary type such as a rotary die, as long as it can cut the original film 1 in the thickness direction.
  • the cutting blade 611 of the cutter unit 61 is pressed against the raw film 1 from the surface side of the raw film 1, so that the plane view shape of the cutting blade 611 and the shape of the cutting blade 611 are formed in the plane of the raw film 1.
  • Cutting lines of the same shape are produced.
  • the portion surrounded by this cutting line is the film product B.
  • a cutting line formed on the original film 1 by the cutting blade 611 divides the in-plane of the original film 1 into the film product B and the residual film 19 .
  • the residual film 19 remains around the film product B formed in the plane of the original film 1 (the portion surrounded by the cutting line).
  • the residual film 19 includes the widthwise first end 1a and the second end 1b of the original film 1 . Both the widthwise first end 1a and the second end 1b of the original film 1 are strip-shaped portions extending in the longitudinal direction of the original film 1. As shown in FIG. In the illustrated example, the residual film 19 is stretched between the first end 1a and the second end 1b and the both ends 1a and 1b and has a hole (a hole corresponding to the film product B). and a mesh portion 1c extending vertically and horizontally.
  • the residue removing section 7 of the manufacturing apparatus A is arranged downstream of the cutting processing section 6 and winds up and removes the residue film 19 .
  • the tape peeling section of the manufacturing apparatus A is arranged downstream of the cutting processing section 6 and peels the adhesive tape 3 from the conveying sheet 2 .
  • the residue removing section 7 also serves as a tape peeling section. That is, the residual removal section 7 winds up the residual film 19 including the widthwise first end 1a and the second widthwise end 1b of the original film 1 together with the adhesive tape 3 .
  • 8 is an enlarged side view of the residue removing section 7 of the manufacturing apparatus A
  • FIG. 9 is a front view of the residue removing section 7. As shown in FIG.
  • the residual removing unit 7 includes a separating member 71 for separating the residual film 19 and the film product B, and a recovery roller for winding the residual film 19. 72 and .
  • the separating member 71 is in contact with the surface of the cut raw film 1 conveyed by the conveying section 5 .
  • the separation member 71 is composed of a linear rod extending in the width direction of the original film 1 and is longer than at least the width of the original film 1 .
  • a hollow or solid cylindrical body (such as a shaft) is used as the separating member 71, for example.
  • the separation member 71 is arranged substantially parallel to the width direction of the original film 1, but may be arranged so as to be inclined with respect to the width direction.
  • Both ends of the separation member 71 are supported by bearings (not shown).
  • the bearing is fixed to a frame (not shown) of the manufacturing apparatus A or the like.
  • the separation member 71 may be rotatably supported by the bearing via a bearing, or may be fixedly supported by the bearing.
  • the collecting roller 72 is arranged above the conveying sheet 2, for example.
  • the residual film 19 is reversed by the separation member 71 , drawn upward, and taken up by the collecting roller 72 . At this time, the residual film 19 is wound around the collecting roller 72 while the adhesive tape 3 is stuck to the surfaces of the first end portion 1a and the second end portion 1b.
  • the residual film 19 attached with the adhesive tape 3 may be wound with the back surface of the adhesive layer 32 of the adhesive tape 3 inside, or may be wound with the back surface of the adhesive layer 32 outside. good. Since the residual film 19 can be neatly wound around the collection roller 72, it is preferable to wind the residual film 19 with the back surface of the adhesive layer 32 of the adhesive tape 3 facing inside as shown in the figure.
  • the product recovery unit 8 of the manufacturing apparatus A is arranged downstream of the residue removal unit 7 .
  • the product recovery section 8 has a conveyor 81 that conveys the film product B remaining on the line after the adhesive tape 3 and the residual film 19 are removed, and a stacking section 82 that recovers the film product B on the conveyor 81.
  • the conveyor 81 is composed of, for example, an endless belt.
  • the stacking unit 82 collects the film products B for each row and packs them into boxes.
  • the manufacturing method of the film product B of the present invention includes a conveying step of conveying a long band-shaped original film 1 containing an optical film to a cutting zone Z3 by a conveying sheet 2, and cutting the original film 1 in the cutting zone Z3. and a cutting step of forming a plurality of film products B by cutting.
  • the raw film 1 is placed in a state in which the first end 1a and the second end 1b in the width direction of the raw film 1 and the conveying sheet 2 are joined together using an adhesive tape 3. It is characterized by cutting.
  • the production method of the present invention can be carried out using the production apparatus A described above, for example.
  • the original film 1 and the adhesive tape 3 are supplied to the conveying section 5 by the film supplying section 41 and the tape supplying section 43 .
  • the original film 1 contacts the surface of the conveying sheet 2 at the first conveying roller 21 (connecting portion 45 ) of the conveying portion 5 . Since the original film 1 is supplied from below the surface of the conveying sheet 2, the original film 1 strongly adheres to the surface of the conveying sheet 2 at the first conveying roller 21 (connecting portion 45). become.
  • the adhesive tape 3 supplied from the first tape supply section 43-1 is applied to the surface of the first widthwise end 1a of the raw film 1 and the conveying sheet 2 at the first conveying roller 21 (connecting section 45). touch the surface.
  • the adhesive layer 32 of the adhesive tape 3 is applied to the original film 1 at the first conveying roller 21 (connecting portion 45).
  • the surface of the first widthwise end portion 1a and the surface of the conveying sheet 2 are strongly adhered to each other. Therefore, the adhesive layer 32 of the adhesive tape 3 is pressure-bonded to the first widthwise end 1a of the raw film 1 and the surface of the conveying sheet 2, and as a result, the first widthwise end 1a of the raw film 1 and the conveying sheet 2 are connected via the adhesive tape 3 .
  • the adhesive tape 3 supplied from the second tape supply unit 43-2 is attached to the surface of the widthwise second end 1b of the raw film 1 and the conveying sheet 2 at the first conveying roller 21 (connecting unit 45). contact with the surface of Since the adhesive tape 3 is supplied from below the surface of the conveying sheet 2, the adhesive layer 32 of the adhesive tape 3 is applied to the original film 1 at the first conveying roller 21 (connecting portion 45). The surface of the width direction second end portion 1b and the surface of the conveying sheet 2 are strongly adhered to each other.
  • the adhesive layer 32 of the adhesive tape 3 is pressure-bonded to the widthwise second end 1b of the raw film 1 and the surface of the conveying sheet 2, and as a result, the widthwise second end 1b of the raw film 1 and the conveying sheet 2 are connected via the adhesive tape 3 .
  • the overlapping width 3-1W of the adhesive tape 3 with the original film 1 and the overlapping width 3-2W of the adhesive tape 3 with the conveying sheet 2 are not particularly limited, and may be independently set, for example, , 5 mm or more and 75 mm or less, preferably 15 mm or more and 50 mm or less.
  • the overlapping width 3-1W of the adhesive tape 3 with the original film 1 and the overlapping width 3-2W of the adhesive tape 3 with the conveying sheet 2 may be about the same, or one of them may be wider than the other. It can be small.
  • the overlapping width 3-2W of the adhesive tape 3 with the conveying sheet 2 is the same as the overlapping width 3-1W with the original film 1. is preferably equal to or less than .
  • a clamp 25 (upper bar 251 and lower bar 252 ) grips the raw film 1 and conveying sheet 2 integrated by the adhesive tape 3 on the downstream side of the connecting portion 45 . Since the adhesive tape 3 and the like are pressed vertically by the upper bar 251 and the lower bar 252, it is possible to prevent the adhesive tape 3 from being partially peeled off during transportation.
  • the clamp 25 gripping the original film 1 or the like moves downstream at the same speed as the conveying sheet 2 .
  • the clamp 25 and the conveying sheet 2 move synchronously by a predetermined distance, convey the original film 1 to the downstream side, and then temporarily stop (see FIG. 13).
  • the predetermined distance corresponds to the length of the original film 1 cut by the cutting unit 6 in one cycle.
  • the cutter section 61 of the cutting processing section 6 descends to cut the original film 1 .
  • the cutter part 61 rises and leaves the original film 1 .
  • the original film 1 cut by the cutting section 6 is divided into a plurality of film products B and a residual film 19 .
  • the stopped clamp 25 returns to its initial position (the position of the clamp 25 shown in FIG. 1) when the upper bar 251 and the lower bar 252 separate from each other.
  • the clamp 25 grips the original film 1 and the conveying sheet 2 integrated with the adhesive tape 3 .
  • the conveying sheet 2 that has been stopped moves downstream again, and the clamps 25 that have gripped the original film 1 and the like move downstream at the same speed as the conveying sheet 2 .
  • the recovery roller 72 of the residue removing section 7 rotates, and the recovery roller 72 winds up the residual film 19 .
  • the residual film 19 including the widthwise first end 1a and the second widthwise end 1b of the original film 1 is reversed at the separation member 71 and drawn upward by the winding of the collecting roller 72 .
  • the adhesive tape 3 is peeled off from the conveying sheet 2 by this withdrawal, the adhesive tape 3 remains attached to the residual film 19 . Therefore, the residual film 19 with the adhesive tape 3 attached thereto is wound around the collection roller 72 .
  • the collection roller 72 synchronized with the movement of the conveying sheet 2 stops accordingly when the conveying sheet 2 is stopped (when cutting the raw film 1).
  • the remaining film 19 can be pulled out by peeling off the adhesive tape 3 from the conveying sheet 2. - ⁇ After the residual film 19 is 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 a conveyor 81 and collected in a stacking section 82 .
  • the width direction first end portion 1a and the width direction second end portion 1b of the original film 1 and the conveying sheet 2 are respectively connected using the adhesive tape 3, and the above-mentioned A raw film 1 is cut. Therefore, when the original film 1 is cut, the original film 1 is along the conveying sheet 2 , and wrinkles are less likely to occur in the original film 1 and positional deviation of the original film 1 is less likely to occur. Therefore, it is possible to reliably cut out the film product B that meets the product standard from the original film 1 . According to the manufacturing method (manufacturing apparatus A) of the present invention, a good film product B can be obtained, and production efficiency can be improved.
  • the film product B is less likely to float up. Become.
  • the residual film 19 is wound around the collecting roller 72 with the adhesive tape 3 still attached, the residual film 19 can be prevented from being unwound. Specifically, the adhesive layer 32 of the adhesive tape 3 attached to the residual film 19 is exposed at the portion separated from the conveying sheet 2 . When the residual film 19 to which the adhesive tape 3 is attached is wound around the recovery roller 72, the exposed adhesive layer 32 sticks in order, so that the residual film 19 can be neatly wound around the recovery roller 72. can.
  • the cutter section 61 of the cutting processing section 6 cuts out a plurality of film products B so that each film product B has an interval.
  • a residual film 19 is produced having a first end 1a and a second end 1b and a mesh portion 1c extending vertically and horizontally between the ends 1a, 1b.
  • the present invention is not limited to the case where a plurality of film products B are cut out at intervals as in the first embodiment. For example, as shown in FIG. A plurality of film products B may be cut out.
  • the gap between the adjacent film products B is substantially equal to the blade thickness of the cutting blade 611, and the resulting residual film 19 consists only of the widthwise first end 1a and the second end 1b of the original film 1.
  • FIG. 14 illustrates a case where the conveying speed of the conveyor 81 is faster than the conveying speed of the conveying sheet 2 .
  • the residual film 19 is pulled out upward in the residue removing section 7, but the direction in which the residual film 19 is pulled out is not limited to the upward direction and can be changed as appropriate.
  • the residual film 19 may be removed from the raw film 1 by pulling the residual film 19 downward.
  • the adhesive tape 3 is removed from the conveying sheet 2 by using the second conveying roller 22 of the conveying unit 5 and pulling out the residual film 19 downward at the downstream end of the second conveying roller 22 .
  • the residual film 19 to which the adhesive tape 3 is adhered can be recovered to the recovery roller 72 while being peeled off.
  • the original film 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, respectively, so that the adhesive tape 3 is separated from the original film 1 and the conveying sheet 2. It is crimped to Such a method is preferable because a member for pressing the adhesive tape 3 becomes unnecessary.
  • a member for pressing the adhesive tape 3 (hereinafter referred to as a pressing member) is provided in order to adhere the adhesive tape 3 to the original film 1 and the conveying sheet 2 when joining them.
  • a pressing member a member for pressing the adhesive tape 3
  • a pair of nip rollers 91 and 92 may be provided in the manufacturing apparatus A as the pressing member.
  • the nip rollers 91 and 92 are arranged in a part of the conveying section 5, for example.
  • the nip rollers 91 and 92 are arranged near the downstream side of the first conveying roller 21 .
  • the adhesive tape 3 By inserting the adhesive tape 3, the original film 1 and the conveying sheet 2 between the pair of nip rollers 91 and 92, the original film 1 is conveyed with the first end 1a and the second end 1b in the width direction.
  • the sheet 2 can be connected with the adhesive tape 3 interposed therebetween.
  • the pressing member such as the nip roller becomes the connecting section 45 of the manufacturing apparatus A. As shown in FIG.
  • 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 drawing, or the adhesive tape 3 may be applied to the surface of the conveying sheet 2 . It may be supplied onto the surface of the conveying sheet 2 substantially parallel to the surface or from below the surface (not shown).
  • the original film 1 may be supplied from above the surface of the conveying sheet 2 (not shown), or the original film 1 may be fed onto the conveying sheet 2 as shown in the figure. It may be supplied substantially parallel to the surface, or the original film 1 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 and 92 can be substituted with the first conveying roller 21 (not shown).
  • the conveying sheet 2 has an endless shape, but it may have a long belt shape.
  • the long belt-shaped conveying sheet 2 is supplied from the sheet supplying section 47 to the conveying section 5 .
  • the sheet supply unit 47 has a loading unit 471 for loading the long belt-shaped conveying sheet 2 wound in a roll shape, and a guide roller 472 for guiding the conveying sheet 2 .
  • the conveying sheet 2 is pulled out from the loading section 471 and joined to the raw film 1 via the adhesive tape 3 at the connecting section 45 .
  • the conveying sheet 2 connected via the adhesive tape 3 conveys the original film 1 to the cutting processing section 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 wound up by the winding unit 49. .
  • a sheet that does not double as a blade receiving sheet may be used as the conveying sheet 2 by arranging the endless blade receiving sheet 93 below the conveying sheet 2 .
  • the conveying sheet 2 that also serves as the blade receiving sheet may be used as in the first embodiment.
  • the press-type cutter 61 is used as the cutting processing unit 6, but a rotary die 94 may be used as shown in FIG. 18, for example.
  • the rotary die 94 has a cutting edge 611 projecting from its peripheral surface.
  • an anvil roller 95 may be used in place of the cradle 62 described above.
  • the anvil roller 95 is arranged to face the rotary die 94 .
  • the original film 1 can be cut without stopping the conveyance of the original film 1 .
  • the raw film 1 connected to the conveying sheet 2 by the adhesive tape 3 is conveyed by the conveying sheet 2 at a predetermined speed, and the rotating rotary die 94 continuously produces a plurality of film products B from the raw film 1. can be cut out.
  • the clamp 25 described above is omitted.
  • the adhesive tape 3 is attached across the width direction end portions 1a and 1b of the original film 1 and the conveying sheet 2. They may be interposed between the directional end portions 1a and 1b and the conveying sheet 2 and attached. 19 and 20, in this embodiment, as the adhesive tape 3, a double-sided adhesive tape is used.
  • the double-sided adhesive tape 3 has adhesive layers 32 provided on both sides of a base material 31 .
  • the double-sided adhesive tape 3 has a separator film 96 attached to one adhesive layer 32 and is wound into a roll with the separator film 96 facing outward.
  • the adhesive tape 3 wound in a roll shape is set in the loading section 431 .
  • the first tape supply unit supplies the double-sided adhesive tape 3 to the first widthwise end 1a of the raw film 1, and the second tape supply unit supplies the double-sided adhesive to the second widthwise end 1b of the raw film 1.
  • Feed tape 3. The double-sided adhesive tape 3 with a separator film is pulled out from the loading part 431 of the first tape supply part, and the separator film 96 is peeled off and recovered in the middle to expose the adhesive layers 32 on both sides (the recovery direction of the separator film 96 is indicated by the white 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 1 a of the original film 1 and the front surface of the conveying sheet 2 .
  • the double-faced adhesive tape 3 with the separator film is pulled out from the loading section 431 of the second tape supply section, and the separator film 96 is peeled off and collected in the middle to expose the adhesive layers 32 on both sides.
  • the second tape supply unit supplies the double-sided adhesive tape 3 with the adhesive layer 32 exposed between the rear surface of the widthwise second end 1b of the original film 1 and the surface of the conveying sheet 2 .
  • the connecting portion 45 the widthwise first end portion 1a and the second end portion 1b of the original film 1 and the conveying sheet 2 are connected together via the double-sided adhesive tape 3 (see FIG. 20).
  • the raw film 1 spliced to the conveying sheet 2 via the double-sided adhesive tape 3 is conveyed to the cutting processing section 6 and cut. Further, when removing the residual film 19 , the double-sided adhesive tape 3 is peeled off from the conveying sheet 2 and taken up by the collecting roller 72 together with the residual film 19 .
  • a Film product manufacturing apparatus B Film product 1 Original film 1a First widthwise end of original film 1b Second widthwise end of original film 19 Residual film 2 Conveying sheet 3 Adhesive tape 41 Film supply of manufacturing equipment Section 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 Transport section of manufacturing apparatus 6 Cutting processing section of manufacturing apparatus 7 Residual removal section of manufacturing apparatus 8 Product recovery section of manufacturing equipment

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)
  • Collation Of Sheets And Webs (AREA)
  • Polarising Elements (AREA)
  • Details Of Cutting Devices (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

La présente invention concerne un dispositif qui est destiné à la fabrication d'un produit en film et qui peut éliminer efficacement l'apparition de défauts. Ce dispositif de fabrication A comprend : une partie de transport 5 comportant une feuille de transport 2 pour transporter, jusqu'à une partie de traitement de découpe 6, une bande de film de type bande allongée 1 comprenant un film optique ; une partie d'alimentation en ruban 43 qui fournit un ruban adhésif 3 ; une partie de liaison 45 qui relie une première section d'extrémité 1a et une seconde section d'extrémité 1b dans le sens de la largeur de la bande de film 1 à la feuille de transport 2 au moyen du ruban adhésif 3 ; et la partie de traitement de découpe 6 qui comporte une lame de découpe 611 pour découper la bande de film 1 reliée à la feuille de transport 2 au moyen du ruban adhésif 3.
PCT/JP2021/030553 2021-01-28 2021-08-20 Procédé de fabrication d'un produit en film et dispositif pour la fabrication de celui-ci WO2022162983A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202180091629.XA CN116761701A (zh) 2021-01-28 2021-08-20 膜产品的制造方法及其制造装置
KR1020237021688A KR20230135052A (ko) 2021-01-28 2021-08-20 필름 제품의 제조 방법 및 그 제조 장치

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JP2021-011971 2021-01-28
JP2021011971A JP2022115393A (ja) 2021-01-28 2021-01-28 フィルム製品の製造方法及びその製造装置

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WO2022162983A1 true WO2022162983A1 (fr) 2022-08-04

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Country Link
JP (1) JP2022115393A (fr)
KR (1) KR20230135052A (fr)
CN (1) CN116761701A (fr)
TW (1) TW202228969A (fr)
WO (1) WO2022162983A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59211006A (ja) * 1983-05-17 1984-11-29 Toyobo Co Ltd 非旋光性フイルムの製造方法
JPH02274494A (ja) * 1989-04-14 1990-11-08 Kawakami Seisakusho:Kk 積層シートの裁断装置
JP2007307683A (ja) * 2006-05-22 2007-11-29 Nitto Denko Corp 光学フィルムシートの打抜き装置および光学フィルムシートの打抜き方法
JP2012194375A (ja) * 2011-03-16 2012-10-11 Nitto Denko Corp 光学フィルム中間体とその製造方法、および光学フィルムチップの製造方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001335235A (ja) 2000-05-26 2001-12-04 Mach Tex:Kk かす剥離装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59211006A (ja) * 1983-05-17 1984-11-29 Toyobo Co Ltd 非旋光性フイルムの製造方法
JPH02274494A (ja) * 1989-04-14 1990-11-08 Kawakami Seisakusho:Kk 積層シートの裁断装置
JP2007307683A (ja) * 2006-05-22 2007-11-29 Nitto Denko Corp 光学フィルムシートの打抜き装置および光学フィルムシートの打抜き方法
JP2012194375A (ja) * 2011-03-16 2012-10-11 Nitto Denko Corp 光学フィルム中間体とその製造方法、および光学フィルムチップの製造方法

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JP2022115393A (ja) 2022-08-09
CN116761701A (zh) 2023-09-15
TW202228969A (zh) 2022-08-01

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