WO2019065881A1 - Adhesive tape, reel of adhesive tape, and production method for adhesive tape - Google Patents

Adhesive tape, reel of adhesive tape, and production method for adhesive tape Download PDF

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Publication number
WO2019065881A1
WO2019065881A1 PCT/JP2018/036045 JP2018036045W WO2019065881A1 WO 2019065881 A1 WO2019065881 A1 WO 2019065881A1 JP 2018036045 W JP2018036045 W JP 2018036045W WO 2019065881 A1 WO2019065881 A1 WO 2019065881A1
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WO
WIPO (PCT)
Prior art keywords
tape
adhesive tape
adhesive
adhesive layer
lead portion
Prior art date
Application number
PCT/JP2018/036045
Other languages
French (fr)
Japanese (ja)
Inventor
立澤　貴
直 工藤
智樹 森尻
友美子 大當
達也 熊田
泰夫 前原
貞治 小菅
Original Assignee
日立化成株式会社
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 日立化成株式会社 filed Critical 日立化成株式会社
Priority to JP2019545626A priority Critical patent/JP7180606B2/en
Priority to KR1020207009453A priority patent/KR102534610B1/en
Priority to CN201880062239.8A priority patent/CN111133069B/en
Publication of WO2019065881A1 publication Critical patent/WO2019065881A1/en

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    • 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
    • B65H35/02—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with longitudinal slitters or perforators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/04—Kinds or types
    • B65H75/08—Kinds or types of circular or polygonal cross-section
    • B65H75/14—Kinds or types of circular or polygonal cross-section with two end flanges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B65H75/28—Arrangements for positively securing ends of material
    • B65H75/285—Holding devices to prevent the wound material from unwinding
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • 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
    • B65H2301/511—Processing surface of handled material upon transport or guiding thereof, e.g. cleaning
    • B65H2301/5113—Processing surface of handled material upon transport or guiding thereof, e.g. cleaning applying adhesive
    • 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
    • B65H2701/30—Handled filamentary material
    • B65H2701/37—Tapes
    • B65H2701/377—Adhesive tape
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature

Definitions

  • the present disclosure relates to an adhesive tape, an adhesive tape winding reel, and a method of manufacturing the adhesive tape.
  • an adhesive tape is used to connect members to be connected having a large number of electrodes.
  • An example of such adhesive tape is anisotropic conductive tape.
  • anisotropic conductive tape when used, for example, when connecting a semiconductor element such as an IC or LSI to a substrate such as a printed wiring board, a glass substrate for LCD, a flexible printed substrate, etc. The insulation between the electrodes can be maintained.
  • the adhesive tape is formed, for example, by forming an adhesive layer containing an adhesive component containing a thermosetting resin and conductive particles optionally blended, on a substrate such as polyethylene terephthalate film (PET). .
  • PET polyethylene terephthalate film
  • the adhesive tape is manufactured by slitting a sheet-like raw material into a long strip with a width according to the application, and is stored, transported, and used in the state of a wound body wound around a reel (for example, patent document 1).
  • the present disclosure has been made to solve the above problems, and it is an object of the present disclosure to provide a narrow adhesive tape, an adhesive tape wound reel, and a method of manufacturing the adhesive tape that can simplify the manufacturing process.
  • An adhesive tape according to one aspect of the present disclosure is an adhesive tape provided with a first adhesive layer on one side of a first separator, wherein the lead portion of the adhesive tape has at least a tip side of the lead portion.
  • a pickup tape having a thickness of 10 ⁇ m to 30 ⁇ m which terminates at the same position as the lead portion is provided so that the adhesive layer 1 is not exposed.
  • a pickup tape having a thickness of 10 ⁇ m to 30 ⁇ m is provided at the lead portion.
  • the thickness of the pickup tape By setting the thickness of the pickup tape within the above range, the thickness of the pickup tape relative to the width of the adhesive tape can be made relatively small. Therefore, the adhesive tape can be cut in a narrow width by slitting in a state where the pickup tape is attached, and the manufacturing process can be simplified.
  • the first adhesive layer is not exposed on the tip end side of the lead portion, even when the lead portion is fixed to the reel or the like, when the lead portion is removed from the reel or the like during use, It is possible to prevent peeling from the first separator.
  • the pickup tape has a second adhesive layer on one side of the second separator, and is fixed to the lead portion so that the second adhesive layer and the first adhesive layer on the adhesive tape side face each other. May be Thereby, the pickup tape can be firmly fixed to the adhesive tape.
  • the pickup tape has a third adhesive layer on the other surface side of the second separator, and an exposed region where the second separator is exposed from the third adhesive layer is provided on the terminal end side of the lead portion. It may be In this case, the lead portion can be fixed to the reel or the like by the third adhesive layer without using a separate seal. Further, by providing the exposed area on the end side of the lead portion, the lead portion can be easily removed from the reel or the like at the time of use.
  • the pickup tape has a fourth adhesive layer on the other side of the second separator, and is fixed to the lead portion by sticking the second separator to the first adhesive layer on the adhesive tape side, An exposed area where the second separator is exposed from the fourth adhesive layer may be provided at the end of the lead portion.
  • the lead portion can be fixed to the reel or the like by the fourth adhesive layer without using a separate seal.
  • the lead portion can be easily removed from the reel or the like when using the adhesive tape.
  • the overall thickness of the lead portion including the pickup tape can be suppressed. Therefore, slit processing in a state where the pickup tape is attached can be implemented more reliably.
  • the pickup tape may be configured by only the second separator, and may be fixed to the lead portion by attaching the second separator to the first adhesive layer on the adhesive tape side. In this case, the entire thickness of the lead portion including the pickup tape can be further suppressed. Therefore, slit processing in a state where the pickup tape is attached can be performed more reliably.
  • the adhesive layer on the pickup tape side may be colored in a color different from that of the first adhesive layer. Thereby, the visibility and the identifiability of the pickup tape can be enhanced. Therefore, the workability can be improved such as when the lead portion is cut when using the adhesive tape.
  • the width orthogonal to the longitudinal direction of the adhesive tape may be 0.8 mm or less.
  • the width of the adhesive tape is 0.8 mm or less, it becomes difficult to slit the lead portion of the adhesive tape in the state where the conventional lead tape is attached. Therefore, when the width of the adhesive tape is 0.8 mm or less, the application of the above-described pickup tape is particularly useful.
  • an adhesive tape winding reel includes a core on which the adhesive tape is wound, and a pair of side plates facing each other with the core interposed therebetween, and the adhesive drawn from the core.
  • the lead portion of the tape is fixed to the outer surface side of the side plate.
  • a pickup tape having a thickness of 10 ⁇ m to 30 ⁇ m is provided at the lead portion of the adhesive tape.
  • the thickness of the pickup tape By setting the thickness of the pickup tape within the above range, the thickness of the pickup tape relative to the width of the adhesive tape can be made relatively small. Therefore, the adhesive tape can be cut in a narrow width by slitting in a state where the pickup tape is attached, and the manufacturing process can be simplified. Further, since the first adhesive layer is not exposed at the leading end side of the lead portion, it is possible to prevent the first adhesive layer from peeling off from the first separator when the lead portion is removed from the reel at the time of use.
  • a method of manufacturing an adhesive tape is a method of manufacturing an adhesive tape in which a first adhesive layer is provided on one surface side of a first separator, and the adhesive tape is fed out from a raw fabric.
  • the slit adhesive tape is slit in the longitudinal direction and cut into a plurality of adhesive tapes, and the adhesive tapes with the pickup tape are cut in the width direction to terminate the lead portion, and then the adhesive tapes are cut. Roll each reel.
  • a pickup tape having a thickness of 10 ⁇ m to 30 ⁇ m is applied to the lead portion.
  • the thickness of the pickup tape By setting the thickness of the pickup tape within the above range, the thickness of the pickup tape relative to the width of the adhesive tape can be made relatively small. Therefore, the adhesive tape can be cut in a narrow width by slitting in a state where the pickup tape is attached, and the manufacturing process can be simplified.
  • the first adhesive layer is not exposed on the tip side of the lead portion in the produced adhesive tape, even when the lead portion is fixed to the reel or the like, when the lead portion is removed from the reel or the like at the time of use The first adhesive layer can be prevented from peeling off from the first separator.
  • the manufacturing process of a narrow adhesive tape can be simplified.
  • FIG. 5 is a side view of an embodiment of an adhesive tape winding reel. It is a typical sectional view showing one embodiment of an adhesive tape. It is a schematic diagram which shows one Embodiment of the manufacturing method of an adhesive tape. It is a schematic cross section which shows the modification of an adhesive tape. It is a typical sectional view showing other modifications of an adhesive tape. It is a typical sectional view showing other modifications of an adhesive tape.
  • FIG. 1 is a side view showing an embodiment of an adhesive tape winding reel.
  • the adhesive tape winding reel 1 includes a core 2 around which the adhesive tape 11 is wound, and a pair of side plates 3 and 3 facing each other with the core 2 interposed therebetween.
  • the adhesive tape winding reel 1 is a reel used for production, supply, and storage of the adhesive tape 11, and has an effect of preventing the winding collapse of the adhesive tape 11 wound around the winding core 2 by the pair of side plates 3, 3. doing.
  • the core 2 is a portion around which the adhesive tape 11 is wound.
  • the winding core 2 is made of, for example, plastic, and has an annular shape with the same thickness as the width of the adhesive tape 11.
  • the adhesive tape 11 is wound around the core 2 so that the adhesive layer 13 (see FIG. 2) of the adhesive tape 11 faces the inner side (winding core 2 side).
  • a shaft hole (not shown) into which the shaft is inserted is attachable.
  • the adhesive tape winding reel 1 is rotated without idling by driving the rotary shaft with the rotary shaft of the winding device or the feeding device inserted in the shaft hole.
  • the side plate 3 is made of, for example, the same plastic as the winding core 2 and has a disk shape.
  • the thickness of the side plate 3 is, for example, 0.5 mm to 5.0 mm, preferably 0.9 mm to 3.0 mm, and more preferably 1.0 mm to 2.0 mm.
  • the diameter of the side plate 3 is appropriately set so as to be a sufficiently large diameter with respect to the diameter of the winding core 2 in accordance with the length of the adhesive tape T wound around the winding core 2.
  • a circular opening communicating with the hollow portion 2 a of the winding core 2 is provided in order to enable the above-mentioned arrangement of the shaft holes.
  • the inner surface of the side plate 3 is provided with a plurality of ribs 4 radially extending from the center side to the peripheral side of the adhesive tape winding reel 1.
  • 16 linear ribs 4 are provided with a phase angle of 22.5 °.
  • the rib 4 has, for example, an arc-like cross-sectional shape, and protrudes from the inner surface of the side plate 3 in a range of, for example, about 0.05 mm to 1.00 mm.
  • Such arrangement of the ribs 4 suppresses the winding collapse of the adhesive tape 11 wound around the winding core 2, and peeling of the adhesive layer 13 (see FIG. 2) of the adhesive tape 11 due to a collision with the side plate 3 (blocking phenomenon) Effects such as suppression of
  • FIG. 2 is a schematic cross-sectional view showing an embodiment of the adhesive tape.
  • the adhesive tape 11 has a two-layer structure of a separator (first separator) 12 and an adhesive layer (first adhesive layer) 13 formed on the side 12 a of the separator 12.
  • the adhesive tape 11 exemplifies an anisotropic conductive tape used to connect the members to be connected.
  • An anisotropic conductive tape is an adhesive tape used when connecting semiconductor elements, such as IC and LSI, etc. to various substrates, such as a printed wiring board, a glass substrate for LCDs, and a flexible printed substrate, for example.
  • An anisotropically conductive tape can maintain the insulation state of adjacent electrodes, while electrically connecting opposing electrodes.
  • the length of the adhesive tape 11 is, for example, 10 m or more and 1000 m or less. In this embodiment, it is 300 m, for example.
  • the adhesive tape 11 is stored and transported in a wound state by using the adhesive tape winding reel 1 described above.
  • the width of the adhesive tape 11 is, for example, 0.8 mm or less, preferably 0.6 mm or less.
  • the thickness of the adhesive tape 11 (the total thickness of the separator 12 and the adhesive layer 13) is, for example, 5 ⁇ m or more and 100 ⁇ m or less, preferably 10 ⁇ m or more and 40 ⁇ m or less, more preferably 10 ⁇ m or more and 20 ⁇ m or less.
  • the material of the separator 12 is, for example, oriented polypropylene (OPP), polyethylene terephthalate (PET), polyethylene naphthalate, polyethylene isophthalate, polybutylene terephthalate, polyolefin, from the viewpoint of strength of the adhesive tape 11 and releasability of the adhesive layer 13.
  • OPP oriented polypropylene
  • PET polyethylene terephthalate
  • PET polyethylene naphthalate
  • polyethylene isophthalate polyethylene isophthalate
  • polybutylene terephthalate polyolefin
  • Polyacetate, polycarbonate, polyphenylene sulfide, polyamide, ethylene / vinyl acetate copolymer, polyvinyl chloride, polyvinylidene chloride, synthetic rubbers, liquid crystal polymers and the like can be used.
  • a release process may be performed on the other surface 12 b side of the separator 12.
  • a release agent which performs release treatment for example, olefin type release agent, ethylene glycol montanic acid ester, carnauba wax, low melting point wax such as petroleum wax, low molecular weight fluorine resin, silicone type or fluorine type surfactant, Oil, wax, resin, silicone resin such as polyester modified silicone resin can be used. In general, silicone resins are used.
  • an adhesive containing a resin such as a thermoplastic resin, a thermosetting resin, or a mixed system (mixed resin) of a thermoplastic resin and a thermosetting resin can be used.
  • a resin such as a thermoplastic resin, a thermosetting resin, or a mixed system (mixed resin) of a thermoplastic resin and a thermosetting resin
  • a typical thermoplastic resin a styrene resin type and a polyester resin type are mentioned, for example.
  • a typical thermosetting resin an epoxy resin type, an acrylic resin type, and a silicone resin type are mentioned, for example.
  • the adhesive layer 13 may be configured to include an adhesive component and, optionally, conductive particles.
  • the adhesive component for example, a material which exhibits curability by heat or light can be widely applied, and since it is excellent in heat resistance and moisture resistance after connection, it is preferable to use a crosslinkable material.
  • An epoxy-based adhesive containing an epoxy resin which is a thermosetting resin as a main component is preferable because it can be cured for a short time, has good connection workability, and is excellent in adhesiveness in molecular structure.
  • epoxy adhesive for example, high molecular weight epoxy, solid epoxy or liquid epoxy, or epoxy epoxy resin modified by these with urethane, polyester, acrylic rubber, nitrile rubber (NBR), synthetic linear polyamide or the like as a main component It can be used.
  • the epoxy-based adhesive is generally formed by adding a curing agent, a catalyst, a coupling agent, a filler and the like to the above-mentioned epoxy as the main component.
  • the conductive particles include particles of metals such as Au, Ag, Pt, Ni, Cu, W, Sb, Sn, solder, or carbon.
  • coated particles may be used in which nonconductive glass, ceramic, plastic or the like is used as a core and the core is coated with the above metal or carbon.
  • the average particle diameter of the conductive particles is preferably, for example, 1 ⁇ m or more and 18 ⁇ m or less from the viewpoint of dispersibility and conductivity.
  • a pickup tape 21 is provided on a lead portion L of the adhesive tape 11 (a lead-out portion from the adhesive tape winding reel 1). As shown in FIG. 1, the pickup tape 21 is pulled out from between the side plates 3 and 3 in a state where the adhesive tape 11 is wound around the adhesive tape winding reel 1 and fixed to the outer surface of one side plate 3 by a seal S. . When the adhesive tape 11 is used, after peeling off the seal S, the pickup tape 21 can be gripped and the adhesive tape 11 can be pulled out from the adhesive tape winding reel 1.
  • the seal S is not particularly limited, and a general seal can be used. When using the adhesive tape 11, the lead portion L may be cut together with the pickup tape 21.
  • the pickup tape 21 has a two-layer structure including a separator (second separator) 22 and an adhesive layer (second adhesive layer) 23 formed on one surface 22 a side of the separator 12. There is.
  • the pickup tape 21 is attached to the lead portion L so that the adhesive layer 23 and the adhesive layer 13 on the adhesive tape 11 side face each other. Further, the end position F2 of the pickup tape 21 coincides with the end position F1 of the lead portion L of the adhesive tape 11. Thereby, in the lead portion L of the adhesive tape 11, the adhesive layer 13 is sandwiched between the separator 12 and the pickup tape 21 so that the adhesive layer 13 is not exposed to the outside.
  • the length of the pickup tape 21 is a length corresponding to the lead portion L of the adhesive tape 11, and is, for example, 30 mm or more and 300 mm or less.
  • the width of the pickup tape 21 is, for example, 0.8 mm or less, preferably 0.6 mm or less, and is equal to the width of the adhesive tape 11.
  • the thickness of the pickup tape 21 (the total thickness of the separator 12 and the adhesive layer 13) is, for example, 10 ⁇ m or more and 30 ⁇ m or less, preferably 10 ⁇ m or more and 20 ⁇ m or less. When the thickness of the pickup tape 21 is less than 10 ⁇ m, it is conceivable that the pickup tape 21 curls at the time of affixing to the adhesive tape 11 and air bubbles are generated between the adhesive layers 13 and 23.
  • the thickness of the pickup tape 21 exceeds 30 ⁇ m, it becomes difficult to cut the pickup tape 21 to the same width as the adhesive tape 11. Therefore, if it is the range of the said thickness, cutting of the pickup tape 21 can be implemented easily, suppressing generation
  • the material of the separator 22 is, for example, oriented polypropylene (OPP), polyethylene terephthalate (PET), polyethylene naphthalate, polyethylene isophthalate, polybutylene terephthalate, polyolefin, polyacetate, polycarbonate, polyphenylene Sulfide, polyamide, ethylene / vinyl acetate copolymer, polyvinyl chloride, polyvinylidene chloride, synthetic rubbers, liquid crystal polymers, etc. can be used.
  • OPP oriented polypropylene
  • PET polyethylene terephthalate
  • PET polyethylene naphthalate
  • polyethylene isophthalate polybutylene terephthalate
  • polyolefin polyacetate
  • polycarbonate polyphenylene Sulfide
  • polyamide ethylene / vinyl acetate copolymer
  • polyvinyl chloride polyvinylidene chloride
  • synthetic rubbers liquid crystal polymers, etc.
  • a silicone pressure sensitive adhesive or an acrylic pressure sensitive adhesive can be used as a material of the adhesive layer 23.
  • an acrylic adhesive as the material of the adhesive layer 23.
  • the adhesive layer 23 is preferably colored in a color different from that of the adhesive layer 13 on the adhesive tape 11 side, from the viewpoint of improving the visibility and identification of the pickup tape 21.
  • the color of the adhesive layers 13 and 23 is not particularly limited, but as an example, the color of the adhesive layer 13 on the adhesive tape 11 side can be colorless and transparent, and the color of the adhesive layer 23 on the pickup tape 21 side can be blue.
  • white PET is used for the separator 12
  • the color of the separator 22 and the adhesive layer 23 of the pickup tape 21 can be made black because of the contrast.
  • FIG. 3 is a schematic view showing an embodiment of a method of producing an adhesive tape.
  • a manufacturing apparatus 101 is used to manufacture the adhesive tape 11.
  • the manufacturing apparatus 101 performs slit processing of the adhesive tape 11 with the feeding device 102 around which the raw fabric P of the adhesive tape 11 is wound, the winding device 103 with the plurality of adhesive tape winding reels 1 rotatably mounted thereon, and A processing apparatus 104 is provided.
  • the adhesive tape 11 is fed from the raw fabric P at a constant speed from the feeding device 102.
  • a large-sized pickup tape 21 having a thickness equal to or greater than 10 ⁇ m and equal to or less than 30 ⁇ m, which is equal to the width of the original fabric P, is attached at a predetermined length.
  • the adhesive layer 23 of the pickup tape 21 is made to face the adhesive layer 13 of the adhesive tape 11.
  • the adhesive layer 13 of the adhesive tape 11 is not exposed to the outside at the portion where the pickup tape 21 is attached.
  • the adhesive tape 11 is sent to the processing device 104. Then, the adhesive tape 11 to which the pickup tape 21 is attached is slit in the longitudinal direction and cut into a plurality of adhesive tapes 11 having a width of 0.8 mm or less. After slitting the adhesive tape 11, a plurality of adhesive tapes 11 are cut in the width direction together with the pickup tape 21 to terminate the lead portion L (line AA in FIG. 3). As a result, the end position F1 of the lead portion L of the adhesive tape 11 and the end position F2 of the pickup tape 21 coincide with each other.
  • the plurality of adhesive tapes 11 with the pickup tape 21 attached thereto are wound around the core 2 of the adhesive tape winding reel 1 by the winding device 103. Then, the lead portion L is pulled out from between the side plates 3 and 3 of the adhesive tape winding reel 1 and fixed to the outer surface of one side plate 3 by a seal S. Thereby, as shown in FIG. 1, the adhesive tape 11 wound around the adhesive tape winding reel 1 is obtained.
  • the pickup tape 21 having a thickness of 10 ⁇ m to 30 ⁇ m is provided in the lead portion L.
  • the thickness of the pickup tape 21 By setting the thickness of the pickup tape 21 in the above range, the thickness of the pickup tape 21 relative to the width of the adhesive tape 11 can be made relatively small. Therefore, the adhesive tape 11 can be cut in a narrow width by slitting in a state where the pickup tape 21 is attached, and the manufacturing process can be simplified.
  • the adhesive layer 13 is not exposed at the leading end side of the lead portion L, even when the lead portion L is fixed to the adhesive tape winding reel 1, the lead portion L is detached from the adhesive tape winding reel 1 during use. At times, the adhesive layer 13 can be prevented from peeling off from the separator 12.
  • the pickup tape 21 has the adhesive layer 23 on one surface 22 a side of the separator 22 and is fixed to the lead portion L such that the adhesive layer 23 and the adhesive layer 13 on the adhesive tape 11 face each other. ing. Thereby, the pickup tape 21 can be firmly fixed to the adhesive tape 11.
  • the adhesive layer 23 on the side of the pickup tape 21 is colored in a color different from that of the adhesive layer 13 on the side of the adhesive tape 11. Thereby, the visibility and the identifiability of the pickup tape 21 can be enhanced. Therefore, the workability in the case where the lead portion L is cut when using the adhesive tape 11 can be improved.
  • the width orthogonal to the longitudinal direction of the adhesive tape 11 is 0.8 mm or less.
  • the upper blade and the lower blade are lapped to cut the adhesive tape 11, but when the slit width becomes narrow, the clearance between the upper blade and the lower blade is also narrow. Become. For this reason, when the thickness of the object to be cut becomes relatively larger than the width, it becomes difficult to pass the blade through the object to be cut.
  • the upper blade can be made thin by adapting to a certain degree, but there is a limit to the thinning of the upper blade due to the problem such as the abradability of the blade.
  • the width of the adhesive tape is 0.8 mm or less, it is difficult to slit the lead portion of the adhesive tape in the state where the conventional lead tape is attached. Therefore, when the width of the adhesive tape 11 is 0.8 mm or less as in the present embodiment, it is particularly useful to apply the pickup tape 21 having a thickness of 10 ⁇ m to 30 ⁇ m to the lead portion L.
  • FIG. 4 is a schematic cross-sectional view showing a modified example of the adhesive tape.
  • the configuration of the pickup tape 41 provided in the lead portion L is different from that of the above embodiment.
  • the pickup tape 41 includes a separator (second separator) 22, an adhesive layer (second adhesive layer) 23 formed on one surface 22 a of the separator 22, and the other surface 22 b of the separator 22.
  • a three-layer structure is formed by the adhesive layer (third adhesive layer) 43 formed.
  • the thickness of the pickup tape 41 (the total thickness of the separator 22, the adhesive layer 23, and the adhesive layer 43) is, for example, 10 ⁇ m or more and 30 ⁇ m or less, preferably 10 ⁇ m or more and 20 ⁇ m or less.
  • the adhesive layer 43 is made of, for example, the same material as the adhesive layer 23. Similar to the adhesive layer 23, the adhesive layer 43 may be colored in a color different from that of the adhesive layer 13 on the adhesive tape 31 side.
  • the end position F2 of the pickup tape 41 coincides with the end position F1 of the lead portion L of the adhesive tape 31, but on the end side of the lead portion L, the other surface 22b of the separator 22 is an adhesive layer
  • An exposed area R exposed from 13 is provided.
  • the length of the exposure area R from the end position F2 is, for example, 5 mm or more and less than 30 mm.
  • the adhesive tape 31 can be cut in a narrow width by slitting in a state where the pickup tape 41 is attached, and the manufacturing process can be simplified.
  • the adhesive layer 13 is not exposed at the leading end side of the lead portion L, even when the lead portion L is fixed to the adhesive tape winding reel 1, the lead portion L is detached from the adhesive tape winding reel 1 during use. At times, the adhesive layer 13 can be prevented from peeling off from the separator 12.
  • the lead portion L can be fixed to the adhesive tape winding reel 1 by the adhesive layer 43 without separately using the seal S (see FIG. 1). Further, by providing the exposed region R on the end side of the lead portion L, the exposed region R becomes a grip when peeling the lead portion L from the adhesive tape winding reel 1 and the lead portion L is wound with the adhesive tape winding in use. It can be easily removed from 1.
  • FIG. 5 is a schematic cross-sectional view showing another modified example of the adhesive tape.
  • the configuration of the pickup tape 61 provided in the lead portion L is further different from that of the above embodiment.
  • the pickup tape 61 has a two-layer structure of a separator (second separator) 22 and an adhesive layer (fourth adhesive layer) 63 formed on the other surface 22 b side of the separator 22. .
  • the pickup tape 61 is fixed to the adhesive tape 51 by directly sticking the one surface 22 a side of the separator 22 to the adhesive layer 13 on the adhesive tape 51 side.
  • the thickness of the pickup tape 61 (the total thickness of the separator 22 and the adhesive layer 63) is, for example, 10 ⁇ m or more and 30 ⁇ m or less, preferably 10 ⁇ m or more and 20 ⁇ m or less.
  • the adhesive layer 63 has, for example, the same configuration as the adhesive layer 23. That is, the adhesive layer 63 is made of the same material as the adhesive layer 23.
  • the adhesive layer 63 is colored in a color different from that of the adhesive layer 13 on the adhesive tape 51 side.
  • the end position F2 of the pickup tape 61 coincides with the end position F1 of the lead portion L of the adhesive tape 51, but on the end side of the lead portion L, the other surface 22b of the separator 22 is exposed from the adhesive layer 63
  • An area R is provided.
  • the length of the exposure area R from the end position F2 is, for example, 5 mm or more and less than 30 mm.
  • the lead portion L can be fixed to the adhesive tape winding reel 1 by the adhesive layer 63 without separately using the seal S (see FIG. 1). Further, by providing the exposed region R on the end side of the lead portion L, the exposed region R becomes a grip when peeling the lead portion L from the adhesive tape winding reel 1 and the lead portion L is wound with the adhesive tape winding in use. It can be easily removed from 1. Furthermore, in the adhesive tape 51, by not providing the adhesive layer on the side of the surface 22 a of the separator 22 in the pickup tape 61, the entire thickness of the lead portion L including the pickup tape 61 can be suppressed. Therefore, slit processing in a state where the pickup tape 61 is attached can be implemented more reliably.
  • FIG. 6 is a schematic cross-sectional view showing another modified example of the adhesive tape.
  • the configuration of the pickup tape 81 provided in the lead portion L is further different from that of the above embodiment.
  • the pickup tape 81 has a single-layer configuration of only the separator (second separator) 22.
  • the pickup tape 81 is fixed to the adhesive tape 71 by directly adhering the one surface 22 a side of the separator 22 to the adhesive layer 13 on the adhesive tape 71 side.
  • the seal S may be used as in the case of FIG.
  • the thickness of the pickup tape 81 (the thickness of the separator 22) is, for example, 10 ⁇ m or more and 30 ⁇ m or less, preferably 10 ⁇ m or more and 20 ⁇ m or less.
  • an adhesive tape 71 it is possible to cut the adhesive tape 71 in a narrow width by slitting in a state where the pickup tape 81 is stuck, and the manufacturing process can be simplified.
  • the adhesive layer 13 is not exposed at the leading end side of the lead portion L, even when the lead portion L is fixed to the adhesive tape winding reel 1, the lead portion L is detached from the adhesive tape winding reel 1 during use. At times, the adhesive layer 13 can be prevented from peeling off from the separator 12.
  • the adhesive tape 71 since the pickup tape 81 has a single-layer structure of only the separator 22, the overall thickness of the lead portion L including the pickup tape 81 can be further suppressed. Therefore, slit processing in a state where the pickup tape 81 is attached can be implemented more reliably.

Abstract

An adhesive tape 11 comprising a separator 12 and an adhesive layer 13 disposed on one surface 12a thereof, the adhesive tape 11 including a leading portion L, in which a pick-up tape 21 ending at the same position as the leading portion L and having a thickness of 10-30 μm has been disposed so that at least the end of the adhesive layer 13 is not exposed.

Description

接着テープ、接着テープ巻回リール、及び接着テープの製造方法Adhesive tape, adhesive tape winding reel, and method of manufacturing adhesive tape
　本開示は、接着テープ、接着テープ巻回リール、及び接着テープの製造方法に関する。 The present disclosure relates to an adhesive tape, an adhesive tape winding reel, and a method of manufacturing the adhesive tape.
　従来、多数の電極を有する被接続部材同士を接続するための接着テープが用いられている。このような接着テープとして、例えば異方導電性テープある。異方導電性テープを用いると、例えばプリント配線基板、ＬＣＤ用ガラス基板、フレキシブルプリント基板等の基板にＩＣ、ＬＳＩといった半導体素子等を接続する際、相対する電極同士を導通させる一方で、隣接する電極同士の絶縁状態を保つことができる。 Conventionally, an adhesive tape is used to connect members to be connected having a large number of electrodes. An example of such adhesive tape is anisotropic conductive tape. When an anisotropic conductive tape is used, for example, when connecting a semiconductor element such as an IC or LSI to a substrate such as a printed wiring board, a glass substrate for LCD, a flexible printed substrate, etc. The insulation between the electrodes can be maintained.
　接着テープは、例えば熱硬化性樹脂を含有する接着剤成分と、必要に応じて配合される導電粒子とを含む接着剤層を、ポリエチレンテレフタレートフィルム（ＰＥＴ）などの基材上に形成してなる。接着テープは、シート状の原反を用途に応じた幅で長尺にスリット加工することによって作製され、リールに巻き回した巻回体の状態で保存・運搬・使用がなされる（例えば特許文献１参照）。 The adhesive tape is formed, for example, by forming an adhesive layer containing an adhesive component containing a thermosetting resin and conductive particles optionally blended, on a substrate such as polyethylene terephthalate film (PET). . The adhesive tape is manufactured by slitting a sheet-like raw material into a long strip with a width according to the application, and is stored, transported, and used in the state of a wound body wound around a reel (for example, patent document 1).
特開２００３－３４４６８号公報JP 2003-34468 A
　従来では、リールに巻き付けられた接着テープのリード部分（巻き出し部分）に接着テープの端よりも張り出すリードテープを貼り付け、リードテープをリールに貼り付けることでリード部分の固定がなされていた。しかしながら、近年では、より幅細の接着テープの要求が強まっている。そのため、リードテープの厚さが接着テープの幅に比べて相対的に大きくなってきており、リードテープを貼り付けた状態では接着テープのリード部分をスリット加工することが困難となっている。現状では、リード部分に貼り付けたリードテープを一旦剥がし、スリット加工を行った後、幅細となった接着テープのそれぞれにリードテープを貼り付けている。したがって、接着テープの製造工程が煩雑になっているという問題があった。 In the past, a lead tape was pasted onto the lead portion (unrolled portion) of the adhesive tape wound around the reel, and the lead portion was fixed by sticking the lead tape to the reel. . However, in recent years, the demand for thinner adhesive tapes has increased. Therefore, the thickness of the lead tape is relatively larger than the width of the adhesive tape, and it is difficult to slit the lead portion of the adhesive tape in the state where the lead tape is attached. At present, the lead tape attached to the lead portion is once peeled off and slitted, and then the lead tape is attached to each of the narrow adhesive tapes. Therefore, there is a problem that the manufacturing process of the adhesive tape is complicated.
　本開示は、上記課題の解決のためになされたものであり、製造工程を簡単化できる幅細の接着テープ、接着テープ巻回リール、及び接着テープの製造方法を提供することを目的とする。 The present disclosure has been made to solve the above problems, and it is an object of the present disclosure to provide a narrow adhesive tape, an adhesive tape wound reel, and a method of manufacturing the adhesive tape that can simplify the manufacturing process.
　本開示の一側面に係る接着テープは、第１のセパレータの一面側に第１の接着層が設けられた接着テープであって、接着テープのリード部分には、少なくともリード部分の先端側において第１の接着層が露出しないように、当該リード部分と同じ位置で終端する厚さ１０μｍ以上３０μｍ以下のピックアップテープが設けられている。 An adhesive tape according to one aspect of the present disclosure is an adhesive tape provided with a first adhesive layer on one side of a first separator, wherein the lead portion of the adhesive tape has at least a tip side of the lead portion. A pickup tape having a thickness of 10 μm to 30 μm which terminates at the same position as the lead portion is provided so that the adhesive layer 1 is not exposed.
　この接着テープでは、リード部分に厚さ１０μｍ以上３０μｍ以下のピックアップテープが設けられている。ピックアップテープの厚さを上記範囲とすることで、接着テープの幅に対するピックアップテープの厚さを相対的に小さくできる。したがって、ピックアップテープを張り付けた状態でスリット加工によって接着テープを幅細に切断することが可能となり、製造工程の簡単化が図られる。また、リード部分の先端側において第１の接着層が露出しないので、リード部分をリール等に固定した場合であっても、使用時にリード部分をリール等から外すときに第１の接着層が第１のセパレータから剥離してしまうことを防止できる。 In this adhesive tape, a pickup tape having a thickness of 10 μm to 30 μm is provided at the lead portion. By setting the thickness of the pickup tape within the above range, the thickness of the pickup tape relative to the width of the adhesive tape can be made relatively small. Therefore, the adhesive tape can be cut in a narrow width by slitting in a state where the pickup tape is attached, and the manufacturing process can be simplified. In addition, since the first adhesive layer is not exposed on the tip end side of the lead portion, even when the lead portion is fixed to the reel or the like, when the lead portion is removed from the reel or the like during use, It is possible to prevent peeling from the first separator.
　また、ピックアップテープは、第２のセパレータの一面側に第２の接着層を有し、第２の接着層と接着テープ側の第１の接着層とが対向するようにリード部分に固定されていてもよい。これにより、ピックアップテープを接着テープに対してしっかりと固定できる。 In addition, the pickup tape has a second adhesive layer on one side of the second separator, and is fixed to the lead portion so that the second adhesive layer and the first adhesive layer on the adhesive tape side face each other. May be Thereby, the pickup tape can be firmly fixed to the adhesive tape.
　また、ピックアップテープは、第２のセパレータの他面側に第３の接着層を有し、リード部分の終端側には、第２のセパレータが第３の接着層から露出する露出領域が設けられていてもよい。この場合、別のシールを用いずに、第３の接着層によってリード部分をリール等に固定できる。また、リード部分の終端側に露出領域を設けることにより、使用時にリード部分をリール等から容易に外すことができる。 In addition, the pickup tape has a third adhesive layer on the other surface side of the second separator, and an exposed region where the second separator is exposed from the third adhesive layer is provided on the terminal end side of the lead portion. It may be In this case, the lead portion can be fixed to the reel or the like by the third adhesive layer without using a separate seal. Further, by providing the exposed area on the end side of the lead portion, the lead portion can be easily removed from the reel or the like at the time of use.
　また、ピックアップテープは、第２のセパレータの他面側に第４の接着層を有し、第２のセパレータが接着テープ側の第１の接着層に貼り付けられることによってリード部分に固定され、リード部分の終端側には、第２のセパレータが第４の接着層から露出する露出領域が設けられていてもよい。この場合、別のシールを用いずに、第４の接着層によってリード部分をリール等に固定できる。また、リード部分の終端側に露出領域を設けることにより、接着テープの使用時にリード部分をリール等から容易に外すことができる。さらに、第２のセパレータの一面側に接着層を設けないことで、ピックアップテープを含めたリード部分の全体の厚さを抑えることができる。したがって、ピックアップテープを張り付けた状態でのスリット加工を一層確実に実施できる。 In addition, the pickup tape has a fourth adhesive layer on the other side of the second separator, and is fixed to the lead portion by sticking the second separator to the first adhesive layer on the adhesive tape side, An exposed area where the second separator is exposed from the fourth adhesive layer may be provided at the end of the lead portion. In this case, the lead portion can be fixed to the reel or the like by the fourth adhesive layer without using a separate seal. Further, by providing the exposed area on the end side of the lead portion, the lead portion can be easily removed from the reel or the like when using the adhesive tape. Furthermore, by not providing the adhesive layer on one side of the second separator, the overall thickness of the lead portion including the pickup tape can be suppressed. Therefore, slit processing in a state where the pickup tape is attached can be implemented more reliably.
　また、ピックアップテープは、第２のセパレータのみによって構成され、第２のセパレータが接着テープ側の第１の接着層に貼り付けられることによってリード部分に固定されていてもよい。この場合、ピックアップテープを含めたリード部分の全体の厚さを一層抑えることができる。したがって、ピックアップテープを張り付けた状態でのスリット加工をさらに確実に実施できる。 In addition, the pickup tape may be configured by only the second separator, and may be fixed to the lead portion by attaching the second separator to the first adhesive layer on the adhesive tape side. In this case, the entire thickness of the lead portion including the pickup tape can be further suppressed. Therefore, slit processing in a state where the pickup tape is attached can be performed more reliably.
　また、ピックアップテープ側の接着層には、第１の接着層とは異なる色が着色されていてもよい。これにより、ピックアップテープの視認性及び識別性を高めることができる。したがって、接着テープの使用時にリード部分を切断する場合などの作業性を向上できる。 The adhesive layer on the pickup tape side may be colored in a color different from that of the first adhesive layer. Thereby, the visibility and the identifiability of the pickup tape can be enhanced. Therefore, the workability can be improved such as when the lead portion is cut when using the adhesive tape.
　また、接着テープの長手方向に直交する幅は、０．８ｍｍ以下であってもよい。接着テープの幅が０．８ｍｍ以下である場合、従来のようなリードテープを貼り付けた状態では接着テープのリード部分をスリット加工することが困難となる。したがって、接着テープの幅が０．８ｍｍ以下である場合には、上述したピックアップテープの適用が特に有用となる。 The width orthogonal to the longitudinal direction of the adhesive tape may be 0.8 mm or less. When the width of the adhesive tape is 0.8 mm or less, it becomes difficult to slit the lead portion of the adhesive tape in the state where the conventional lead tape is attached. Therefore, when the width of the adhesive tape is 0.8 mm or less, the application of the above-described pickup tape is particularly useful.
　また、本開示の一側面に係る接着テープ巻回リールは、上記接着テープが巻き付けられた巻芯と、巻芯を挟んで互いに対向する一対の側板と、を備え、巻芯から引き出された接着テープのリード部分が側板の外面側に固定されている。 Further, an adhesive tape winding reel according to one aspect of the present disclosure includes a core on which the adhesive tape is wound, and a pair of side plates facing each other with the core interposed therebetween, and the adhesive drawn from the core. The lead portion of the tape is fixed to the outer surface side of the side plate.
　この接着テープ巻回リールでは、接着テープにおけるリード部分に厚さ１０μｍ以上３０μｍ以下のピックアップテープが設けられている。ピックアップテープの厚さを上記範囲とすることで、接着テープの幅に対するピックアップテープの厚さを相対的に小さくできる。したがって、ピックアップテープを張り付けた状態でスリット加工によって接着テープを幅細に切断することが可能となり、製造工程の簡単化が図られる。また、リード部分の先端側において第１の接着層が露出しないので、使用時にリード部分をリールから外すときに第１の接着層が第１のセパレータから剥離してしまうことを防止できる。 In this adhesive tape winding reel, a pickup tape having a thickness of 10 μm to 30 μm is provided at the lead portion of the adhesive tape. By setting the thickness of the pickup tape within the above range, the thickness of the pickup tape relative to the width of the adhesive tape can be made relatively small. Therefore, the adhesive tape can be cut in a narrow width by slitting in a state where the pickup tape is attached, and the manufacturing process can be simplified. Further, since the first adhesive layer is not exposed at the leading end side of the lead portion, it is possible to prevent the first adhesive layer from peeling off from the first separator when the lead portion is removed from the reel at the time of use.
　また、本開示の一側面に係る接着テープの製造方法は、第１のセパレータの一面側に第１の接着層が設けられた接着テープの製造方法であって、接着テープを原反から繰り出しながら、第１の接着層が露出しなくなる向きに原反の幅と等幅の厚さ１０μｍ以上３０μｍ以下のピックアップテープを一定の長さ毎に第１の接着層に貼り付け、ピックアップテープが貼り付けられた接着テープを長手方向にスリット加工して複数条の接着テープに切断し、複数条の接着テープをピックアップテープと共に幅方向に切断してリード部分を終端させた後、複数条の接着テープをそれぞれリールに巻き取る。 Moreover, a method of manufacturing an adhesive tape according to one aspect of the present disclosure is a method of manufacturing an adhesive tape in which a first adhesive layer is provided on one surface side of a first separator, and the adhesive tape is fed out from a raw fabric. Affix a pickup tape with a thickness of 10 μm or more and 30 μm or less equal to the width of the original fabric in the direction in which the first adhesive layer is not exposed, to the first adhesive layer for each fixed length, and attach the pickup tape The slit adhesive tape is slit in the longitudinal direction and cut into a plurality of adhesive tapes, and the adhesive tapes with the pickup tape are cut in the width direction to terminate the lead portion, and then the adhesive tapes are cut. Roll each reel.
　この接着テープの製造方法では、リード部分に厚さ１０μｍ以上３０μｍ以下のピックアップテープを適用する。ピックアップテープの厚さを上記範囲とすることで、接着テープの幅に対するピックアップテープの厚さを相対的に小さくできる。したがって、ピックアップテープを張り付けた状態でスリット加工によって接着テープを幅細に切断することが可能となり、製造工程の簡単化が図られる。また、作製された接着テープにおいてリード部分の先端側に第１の接着層が露出しないので、リード部分をリール等に固定した場合であっても、使用時にリード部分をリール等から外すときに第１の接着層が第１のセパレータから剥離してしまうことを防止できる。 In this method of manufacturing the adhesive tape, a pickup tape having a thickness of 10 μm to 30 μm is applied to the lead portion. By setting the thickness of the pickup tape within the above range, the thickness of the pickup tape relative to the width of the adhesive tape can be made relatively small. Therefore, the adhesive tape can be cut in a narrow width by slitting in a state where the pickup tape is attached, and the manufacturing process can be simplified. In addition, since the first adhesive layer is not exposed on the tip side of the lead portion in the produced adhesive tape, even when the lead portion is fixed to the reel or the like, when the lead portion is removed from the reel or the like at the time of use The first adhesive layer can be prevented from peeling off from the first separator.
　本開示によれば、幅細の接着テープの製造工程を簡単化できる。 According to the present disclosure, the manufacturing process of a narrow adhesive tape can be simplified.
接着テープ巻回リールの一実施形態を示す側面図である。FIG. 5 is a side view of an embodiment of an adhesive tape winding reel. 接着テープの一実施形態を示す模式的な断面図である。It is a typical sectional view showing one embodiment of an adhesive tape. 接着テープの製造方法の一実施形態を示す模式的な図である。It is a schematic diagram which shows one Embodiment of the manufacturing method of an adhesive tape. 接着テープの変形例を示す模式的な断面図である。It is a schematic cross section which shows the modification of an adhesive tape. 接着テープの他の変形例を示す模式的な断面図である。It is a typical sectional view showing other modifications of an adhesive tape. 接着テープの他の変形例を示す模式的な断面図である。It is a typical sectional view showing other modifications of an adhesive tape.
　以下、図面を参照しながら、本開示の一側面に係る接着テープ、接着テープ巻回リール、及び接着テープの製造方法の好適な実施形態について詳細に説明する。 Hereinafter, preferred embodiments of an adhesive tape, an adhesive tape wound reel, and a method of manufacturing the adhesive tape according to one aspect of the present disclosure will be described in detail with reference to the drawings.
　図１は、接着テープ巻回リールの一実施形態を示す側面図である。同図に示すように、接着テープ巻回リール１は、接着テープ１１が巻き付けられる巻芯２と、巻芯２を挟んで互いに対向する一対の側板３，３とを備えて構成されている。接着テープ巻回リール１は、接着テープ１１の製造、供給、保存に用いられるリールであり、一対の側板３，３によって巻芯２に巻き付けられた接着テープ１１の巻き崩れを防止する作用を有している。 FIG. 1 is a side view showing an embodiment of an adhesive tape winding reel. As shown in the figure, the adhesive tape winding reel 1 includes a core 2 around which the adhesive tape 11 is wound, and a pair of side plates 3 and 3 facing each other with the core 2 interposed therebetween. The adhesive tape winding reel 1 is a reel used for production, supply, and storage of the adhesive tape 11, and has an effect of preventing the winding collapse of the adhesive tape 11 wound around the winding core 2 by the pair of side plates 3, 3. doing.
　巻芯２は、接着テープ１１を巻き付ける部分である。巻芯２は、例えばプラスチックからなり、接着テープ１１の幅と同様の厚みの円環状をなしている。本実施形態では、接着テープ１１の接着層１３（図２参照）が内側（巻芯２側）を向くようにして巻芯２に接着テープ１１が巻き付けられている。巻芯２の中空部分２ａには、例えば接着テープ巻回リール１への接着テープ１１の巻き付けに用いる巻付装置、或いは接着テープ巻回リール１からの接着テープ１１の繰り出しに用いる繰出装置の回転軸が挿入される軸穴（不図示）が取り付け可能となっている。軸穴に巻付装置又は繰出装置の回転軸を差し込んだ状態で回転軸を駆動させることで、接着テープ巻回リール１が空回りなく回転するようになっている。 The core 2 is a portion around which the adhesive tape 11 is wound. The winding core 2 is made of, for example, plastic, and has an annular shape with the same thickness as the width of the adhesive tape 11. In the present embodiment, the adhesive tape 11 is wound around the core 2 so that the adhesive layer 13 (see FIG. 2) of the adhesive tape 11 faces the inner side (winding core 2 side). In the hollow portion 2a of the winding core 2, for example, a winding device used for winding the adhesive tape 11 around the adhesive tape winding reel 1, or rotation of a feeding device used for unwinding the adhesive tape 11 from the adhesive tape winding reel 1. A shaft hole (not shown) into which the shaft is inserted is attachable. The adhesive tape winding reel 1 is rotated without idling by driving the rotary shaft with the rotary shaft of the winding device or the feeding device inserted in the shaft hole.
　側板３は、例えば巻芯２と同じプラスチックからなり、円板状をなしている。側板３の厚さは、例えば０．５ｍｍ～５．０ｍｍ、好ましくは０．９ｍｍ～３．０ｍｍ、より好ましくは１．０ｍｍ～２．０ｍｍである。側板３の直径は、巻芯２に巻き付けられる接着テープＴの長さに応じて、巻芯２の直径に対して十分大きい径となるように適宜設定される。側板３の中央部分には、上述した軸穴の配置を可能とするため、巻芯２の中空部分２ａに連通する円形の開口が設けられている。 The side plate 3 is made of, for example, the same plastic as the winding core 2 and has a disk shape. The thickness of the side plate 3 is, for example, 0.5 mm to 5.0 mm, preferably 0.9 mm to 3.0 mm, and more preferably 1.0 mm to 2.0 mm. The diameter of the side plate 3 is appropriately set so as to be a sufficiently large diameter with respect to the diameter of the winding core 2 in accordance with the length of the adhesive tape T wound around the winding core 2. In the central portion of the side plate 3, a circular opening communicating with the hollow portion 2 a of the winding core 2 is provided in order to enable the above-mentioned arrangement of the shaft holes.
　側板３の内面には、接着テープ巻回リール１の中心側から周縁側に向かって放射状に延びる複数のリブ４が設けられている。図１の例では、２２．５°の位相角をもって１６本の直線状のリブ４が設けられている。リブ４は、例えば円弧状の断面形状をなし、例えば０．０５ｍｍ～１．００ｍｍ程度の範囲で側板３の内面から突出している。このようなリブ４の配置により、巻芯２に巻き付けられた接着テープ１１の巻崩れの抑制、及び側板３への衝突による接着テープ１１の接着層１３（図２参照）の剥がれ（ブロッキング現象）の抑制等の効果が奏される。 The inner surface of the side plate 3 is provided with a plurality of ribs 4 radially extending from the center side to the peripheral side of the adhesive tape winding reel 1. In the example of FIG. 1, 16 linear ribs 4 are provided with a phase angle of 22.5 °. The rib 4 has, for example, an arc-like cross-sectional shape, and protrudes from the inner surface of the side plate 3 in a range of, for example, about 0.05 mm to 1.00 mm. Such arrangement of the ribs 4 suppresses the winding collapse of the adhesive tape 11 wound around the winding core 2, and peeling of the adhesive layer 13 (see FIG. 2) of the adhesive tape 11 due to a collision with the side plate 3 (blocking phenomenon) Effects such as suppression of
　次に、接着テープ１１について詳細に説明する。 Next, the adhesive tape 11 will be described in detail.
　図２は、接着テープの一実施形態を示す模式的な断面図である。同図に示すように、接着テープ１１は、セパレータ（第１のセパレータ）１２と、セパレータ１２の一面１２ａ側に形成された接着層（第１の接着層）１３とによる二層構造をなしている。本実施形態では、接着テープ１１は、被接続部材同士の接続に用いられる異方導電性テープを例示する。異方導電性テープは、例えばプリント配線基板、ＬＣＤ用ガラス基板、フレキシブルプリント基板といった各種基板に、ＩＣ、ＬＳＩといった半導体素子等を接続する際に用いられる接着テープである。異方導電性テープは、相対する電極同士を導通させる一方で、隣接する電極同士の絶縁状態を保つことができる。 FIG. 2 is a schematic cross-sectional view showing an embodiment of the adhesive tape. As shown in the figure, the adhesive tape 11 has a two-layer structure of a separator (first separator) 12 and an adhesive layer (first adhesive layer) 13 formed on the side 12 a of the separator 12. There is. In the present embodiment, the adhesive tape 11 exemplifies an anisotropic conductive tape used to connect the members to be connected. An anisotropic conductive tape is an adhesive tape used when connecting semiconductor elements, such as IC and LSI, etc. to various substrates, such as a printed wiring board, a glass substrate for LCDs, and a flexible printed substrate, for example. An anisotropically conductive tape can maintain the insulation state of adjacent electrodes, while electrically connecting opposing electrodes.
　接着テープ１１の長さは、例えば１０ｍ以上１０００ｍ以下である。本実施形態では、例えば３００ｍである。接着テープ１１は、上述した接着テープ巻回リール１を用いることで、巻回体の状態で保存及び搬送される。接着テープ１１の幅は、例えば０．８ｍｍ以下、好ましくは０．６ｍｍ以下である。接着テープ１１の厚さ（セパレータ１２及び接着層１３の合計の厚さ）は、例えば５μｍ以上１００μｍ以下、好ましくは１０μｍ以上４０μｍ以下、より好ましくは１０μｍ以上２０μｍ以下である。 The length of the adhesive tape 11 is, for example, 10 m or more and 1000 m or less. In this embodiment, it is 300 m, for example. The adhesive tape 11 is stored and transported in a wound state by using the adhesive tape winding reel 1 described above. The width of the adhesive tape 11 is, for example, 0.8 mm or less, preferably 0.6 mm or less. The thickness of the adhesive tape 11 (the total thickness of the separator 12 and the adhesive layer 13) is, for example, 5 μm or more and 100 μm or less, preferably 10 μm or more and 40 μm or less, more preferably 10 μm or more and 20 μm or less.
　セパレータ１２の材料としては、接着テープ１１の強度及び接着層１３の剥離性の観点から、例えば延伸ポリプロピレン（ＯＰＰ）、ポリエチレンテレフタレート（ＰＥＴ）、ポリエチレンナフタレート、ポリエチレンイソフタレート、ポリブチレンテレフタレート、ポリオレフィン、ポリアセテート、ポリカーボネート、ポリフェニレンサルファイド、ポリアミド、エチレン・酢酸ビニル共重合体、ポリ塩化ビニル、ポリ塩化ビニリデン、合成ゴム系、液晶ポリマー等を用いることができる。 The material of the separator 12 is, for example, oriented polypropylene (OPP), polyethylene terephthalate (PET), polyethylene naphthalate, polyethylene isophthalate, polybutylene terephthalate, polyolefin, from the viewpoint of strength of the adhesive tape 11 and releasability of the adhesive layer 13. Polyacetate, polycarbonate, polyphenylene sulfide, polyamide, ethylene / vinyl acetate copolymer, polyvinyl chloride, polyvinylidene chloride, synthetic rubbers, liquid crystal polymers and the like can be used.
　セパレータ１２の他面１２ｂ側には、離型処理が施されていてもよい。離型処理を行う離型剤としては、例えばオレフィン系離型剤、エチレングリコールモンタン酸エステル、カルナウバロウ、石油系ワックス等の低融点ワックス、低分子量フッ素樹脂、シリコーン系又はフッ素系の界面活性剤、オイル、ワックス、レジン、ポリエステル変性シリコーン樹脂等のシリコーン樹脂などを用いることができる。一般的には、シリコーン樹脂が用いられる。 A release process may be performed on the other surface 12 b side of the separator 12. As a release agent which performs release treatment, for example, olefin type release agent, ethylene glycol montanic acid ester, carnauba wax, low melting point wax such as petroleum wax, low molecular weight fluorine resin, silicone type or fluorine type surfactant, Oil, wax, resin, silicone resin such as polyester modified silicone resin can be used. In general, silicone resins are used.
　接着層１３の材料としては、例えば熱可塑性樹脂、熱硬化性樹脂、或いは熱可塑性樹脂と熱硬化性樹脂との混合系（混合樹脂）等の樹脂を含む接着剤を用いることができる。代表的な熱可塑性樹脂としては、例えばスチレン樹脂系、ポリエステル樹脂系が挙げられる。代表的な熱硬化性樹脂としては、例えばエポキシ樹脂系、アクリル樹脂系、シリコーン樹脂系が挙げられる。 As a material of the adhesive layer 13, for example, an adhesive containing a resin such as a thermoplastic resin, a thermosetting resin, or a mixed system (mixed resin) of a thermoplastic resin and a thermosetting resin can be used. As a typical thermoplastic resin, a styrene resin type and a polyester resin type are mentioned, for example. As a typical thermosetting resin, an epoxy resin type, an acrylic resin type, and a silicone resin type are mentioned, for example.
　接着テープ１１が異方導電性テープである場合、接着層１３は、接着剤成分と、必要により含有される導電粒子とを含んで構成され得る。接着剤成分としては、例えば、熱や光により硬化性を示す材料を広く適用でき、接続後の耐熱性や耐湿性に優れていることから、架橋性材料を使用することが好ましい。熱硬化性樹脂であるエポキシ樹脂を主成分として含有するエポキシ系接着剤は、短時間硬化が可能で接続作業性がよく、分子構造上接着性に優れている等の特徴から好ましい。エポキシ系接着剤としては、例えば高分子量エポキシ、固形エポキシ又は液状エポキシ、或いはこれらをウレタン、ポリエステル、アクリルゴム、ニトリルゴム（ＮＢＲ）、合成線状ポリアミド等で変性したエポキシを主成分とするものを用いることができる。エポキシ系接着剤は、主成分をなす上記エポキシに硬化剤、触媒、カップリング剤、充填剤等を添加してなるものが一般的である。 When the adhesive tape 11 is an anisotropic conductive tape, the adhesive layer 13 may be configured to include an adhesive component and, optionally, conductive particles. As the adhesive component, for example, a material which exhibits curability by heat or light can be widely applied, and since it is excellent in heat resistance and moisture resistance after connection, it is preferable to use a crosslinkable material. An epoxy-based adhesive containing an epoxy resin which is a thermosetting resin as a main component is preferable because it can be cured for a short time, has good connection workability, and is excellent in adhesiveness in molecular structure. As the epoxy adhesive, for example, high molecular weight epoxy, solid epoxy or liquid epoxy, or epoxy epoxy resin modified by these with urethane, polyester, acrylic rubber, nitrile rubber (NBR), synthetic linear polyamide or the like as a main component It can be used. The epoxy-based adhesive is generally formed by adding a curing agent, a catalyst, a coupling agent, a filler and the like to the above-mentioned epoxy as the main component.
　導電粒子としては、例えばＡｕ、Ａｇ、Ｐｔ、Ｎｉ、Ｃｕ、Ｗ、Ｓｂ、Ｓｎ、はんだ等の金属、或いはカーボンの粒子が挙げられる。また、非導電性のガラス、セラミック、プラスチック等を核とし、この核を上記の金属やカーボンで被覆した被覆粒子を使用してもよい。導電粒子の平均粒径は、分散性及び導電性の観点から、例えば１μｍ以上１８μｍ以下であることが好ましい。なお、導電粒子を絶縁層で被覆してなる絶縁被覆粒子を使用してもよく、隣接する電極同士の絶縁性を向上させる観点から導電粒子と絶縁性粒子とを併用してもよい。 Examples of the conductive particles include particles of metals such as Au, Ag, Pt, Ni, Cu, W, Sb, Sn, solder, or carbon. Alternatively, coated particles may be used in which nonconductive glass, ceramic, plastic or the like is used as a core and the core is coated with the above metal or carbon. The average particle diameter of the conductive particles is preferably, for example, 1 μm or more and 18 μm or less from the viewpoint of dispersibility and conductivity. In addition, you may use the insulation coating particle | grains which coat | cover an electroconductive particle by an insulating layer, and it may use together an electroconductive particle and insulating particles from a viewpoint of improving the insulation of adjacent electrodes.
　接着テープ１１のリード部分Ｌ（接着テープ巻回リール１からの引き出し部分）には、ピックアップテープ２１が設けられている。ピックアップテープ２１は、図１に示すように、接着テープ１１が接着テープ巻回リール１に巻き付けられた状態において側板３，３間から引き出され、シールＳによって一方の側板３の外面に固定される。接着テープ１１の使用時には、シールＳを剥がした後、ピックアップテープ２１を把持して接着テープ１１を接着テープ巻回リール１から引き出すことができる。シールＳは、特に制限はなく、一般的なシールを用いることができる。接着テープ１１の使用時には、リード部分Ｌをピックアップテープ２１と共に切断してもよい。 A pickup tape 21 is provided on a lead portion L of the adhesive tape 11 (a lead-out portion from the adhesive tape winding reel 1). As shown in FIG. 1, the pickup tape 21 is pulled out from between the side plates 3 and 3 in a state where the adhesive tape 11 is wound around the adhesive tape winding reel 1 and fixed to the outer surface of one side plate 3 by a seal S. . When the adhesive tape 11 is used, after peeling off the seal S, the pickup tape 21 can be gripped and the adhesive tape 11 can be pulled out from the adhesive tape winding reel 1. The seal S is not particularly limited, and a general seal can be used. When using the adhesive tape 11, the lead portion L may be cut together with the pickup tape 21.
　ピックアップテープ２１は、図２に示すように、セパレータ（第２のセパレータ）２２と、セパレータ１２の一面２２ａ側に形成された接着層（第２の接着層）２３とによる二層構造をなしている。ピックアップテープ２１は、接着層２３と接着テープ１１側の接着層１３とが対向するようにリード部分Ｌに貼り付けられている。また、ピックアップテープ２１の終端位置Ｆ２は、接着テープ１１のリード部分Ｌの終端位置Ｆ１と一致している。これにより、接着テープ１１のリード部分Ｌでは、接着層１３がセパレータ１２とピックアップテープ２１とによって挟まれ、接着層１３が外側に露出しないようになっている。 As shown in FIG. 2, the pickup tape 21 has a two-layer structure including a separator (second separator) 22 and an adhesive layer (second adhesive layer) 23 formed on one surface 22 a side of the separator 12. There is. The pickup tape 21 is attached to the lead portion L so that the adhesive layer 23 and the adhesive layer 13 on the adhesive tape 11 side face each other. Further, the end position F2 of the pickup tape 21 coincides with the end position F1 of the lead portion L of the adhesive tape 11. Thereby, in the lead portion L of the adhesive tape 11, the adhesive layer 13 is sandwiched between the separator 12 and the pickup tape 21 so that the adhesive layer 13 is not exposed to the outside.
　ピックアップテープ２１の長さは、接着テープ１１のリード部分Ｌに対応する長さであり、例えば３０ｍｍ以上３００ｍｍ以下である。また、ピックアップテープ２１の幅は、例えば０．８ｍｍ以下、好ましくは０．６ｍｍ以下であり、接着テープ１１の幅と等幅となっている。ピックアップテープ２１の厚さ（セパレータ１２及び接着層１３の合計の厚さ）は、例えば１０μｍ以上３０μｍ以下、好ましくは１０μｍ以上２０μｍ以下である。ピックアップテープ２１の厚さが１０μｍ未満である場合、接着テープ１１への貼り付けの際にピックアップテープ２１がカールし、接着層１３，２３間に気泡が生じることが考えられる。また、ピックアップテープ２１の厚さが３０μｍを超える場合、ピックアップテープ２１を接着テープ１１と等幅に切断することが難しくなる。したがって、上記厚さの範囲であれば、気泡の発生を抑えつつ、ピックアップテープ２１の切断を容易に実施できる。 The length of the pickup tape 21 is a length corresponding to the lead portion L of the adhesive tape 11, and is, for example, 30 mm or more and 300 mm or less. The width of the pickup tape 21 is, for example, 0.8 mm or less, preferably 0.6 mm or less, and is equal to the width of the adhesive tape 11. The thickness of the pickup tape 21 (the total thickness of the separator 12 and the adhesive layer 13) is, for example, 10 μm or more and 30 μm or less, preferably 10 μm or more and 20 μm or less. When the thickness of the pickup tape 21 is less than 10 μm, it is conceivable that the pickup tape 21 curls at the time of affixing to the adhesive tape 11 and air bubbles are generated between the adhesive layers 13 and 23. When the thickness of the pickup tape 21 exceeds 30 μm, it becomes difficult to cut the pickup tape 21 to the same width as the adhesive tape 11. Therefore, if it is the range of the said thickness, cutting of the pickup tape 21 can be implemented easily, suppressing generation | occurrence | production of a bubble.
　セパレータ２２の材料としては、接着テープ１１のセパレータ１２と同様に、例えば延伸ポリプロピレン（ＯＰＰ）、ポリエチレンテレフタレート（ＰＥＴ）、ポリエチレンナフタレート、ポリエチレンイソフタレート、ポリブチレンテレフタレート、ポリオレフィン、ポリアセテート、ポリカーボネート、ポリフェニレンサルファイド、ポリアミド、エチレン・酢酸ビニル共重合体、ポリ塩化ビニル、ポリ塩化ビニリデン、合成ゴム系、液晶ポリマー等を用いることができる。 Similar to the separator 12 of the adhesive tape 11, the material of the separator 22 is, for example, oriented polypropylene (OPP), polyethylene terephthalate (PET), polyethylene naphthalate, polyethylene isophthalate, polybutylene terephthalate, polyolefin, polyacetate, polycarbonate, polyphenylene Sulfide, polyamide, ethylene / vinyl acetate copolymer, polyvinyl chloride, polyvinylidene chloride, synthetic rubbers, liquid crystal polymers, etc. can be used.
　接着層２３の材料としては、例えばシリコーン系粘着剤或いはアクリル系粘着剤を用いることができる。顧客最終製品の仕様上、接着層１３以外の副資材も含めてシリコーンフリーが求められる場合を考慮すると、接着層２３の材料としてアクリル系粘着剤を用いることが好ましい。また、接着層２３には、ピックアップテープ２１の視認性及び識別性の向上の観点から、接着テープ１１側の接着層１３とは異なる色が着色されていることが好ましい。接着層１３，２３の色に特に制限はないが、一例として、接着テープ１１側の接着層１３の色を無色透明とし、ピックアップテープ２１側の接着層２３の色を青色とすることができる。また、セパレータ１２に白色ＰＥＴを用いた場合には、コントラストの関係からピックアップテープ２１のセパレータ２２及び接着層２３の色を黒色とすることもできる。 As a material of the adhesive layer 23, for example, a silicone pressure sensitive adhesive or an acrylic pressure sensitive adhesive can be used. In consideration of the case where it is required to be silicone-free including auxiliary materials other than the adhesive layer 13 in terms of specifications of the final product of the customer, it is preferable to use an acrylic adhesive as the material of the adhesive layer 23. The adhesive layer 23 is preferably colored in a color different from that of the adhesive layer 13 on the adhesive tape 11 side, from the viewpoint of improving the visibility and identification of the pickup tape 21. The color of the adhesive layers 13 and 23 is not particularly limited, but as an example, the color of the adhesive layer 13 on the adhesive tape 11 side can be colorless and transparent, and the color of the adhesive layer 23 on the pickup tape 21 side can be blue. When white PET is used for the separator 12, the color of the separator 22 and the adhesive layer 23 of the pickup tape 21 can be made black because of the contrast.
　続いて、接着テープ１１の製造方法について説明する。 Subsequently, a method of manufacturing the adhesive tape 11 will be described.
　図３は、接着テープの製造方法の一実施形態を示す模式的な図である。同図に示すように、接着テープ１１の製造には、製造装置１０１を用いる。製造装置１０１は、接着テープ１１の原反Ｐが巻き付けられた繰出装置１０２と、複数の接着テープ巻回リール１が回転可能に装着された巻付装置１０３と、接着テープ１１のスリット加工を行う加工装置１０４とを備えて構成されている。 FIG. 3 is a schematic view showing an embodiment of a method of producing an adhesive tape. As shown in the figure, a manufacturing apparatus 101 is used to manufacture the adhesive tape 11. The manufacturing apparatus 101 performs slit processing of the adhesive tape 11 with the feeding device 102 around which the raw fabric P of the adhesive tape 11 is wound, the winding device 103 with the plurality of adhesive tape winding reels 1 rotatably mounted thereon, and A processing apparatus 104 is provided.
　繰出装置１０２からは、一定の速度で原反Ｐから接着テープ１１が繰り出される。繰出装置１０２から繰り出された接着テープ１１には、原反Ｐの幅と等幅の厚さ１０μｍ以上３０μｍ以下の大判のピックアップテープ２１が一定の長さ毎に貼り付けられる。このとき、ピックアップテープ２１の接着層２３を接着テープ１１の接着層１３と対向させる。これにより、ピックアップテープ２１が貼り付けられた部分では、接着テープ１１の接着層１３が外側に露出しなくなる。 The adhesive tape 11 is fed from the raw fabric P at a constant speed from the feeding device 102. On the adhesive tape 11 fed from the feeding device 102, a large-sized pickup tape 21 having a thickness equal to or greater than 10 μm and equal to or less than 30 μm, which is equal to the width of the original fabric P, is attached at a predetermined length. At this time, the adhesive layer 23 of the pickup tape 21 is made to face the adhesive layer 13 of the adhesive tape 11. As a result, the adhesive layer 13 of the adhesive tape 11 is not exposed to the outside at the portion where the pickup tape 21 is attached.
　ピックアップテープ２１の貼り付け後、接着テープ１１を加工装置１０４に送る。そして、ピックアップテープ２１が貼り付けられた接着テープ１１を長手方向にスリット加工し、幅０．８ｍｍ以下の複数条の接着テープ１１に切断する。接着テープ１１をスリット加工した後、複数条の接着テープ１１をピックアップテープ２１と共に幅方向に切断してリード部分Ｌを終端させる（図３におけるＡ－Ａ線）。これにより、接着テープ１１のリード部分Ｌの終端位置Ｆ１と、ピックアップテープ２１の終端位置Ｆ２とが一致した状態となる。 After the pickup tape 21 is attached, the adhesive tape 11 is sent to the processing device 104. Then, the adhesive tape 11 to which the pickup tape 21 is attached is slit in the longitudinal direction and cut into a plurality of adhesive tapes 11 having a width of 0.8 mm or less. After slitting the adhesive tape 11, a plurality of adhesive tapes 11 are cut in the width direction together with the pickup tape 21 to terminate the lead portion L (line AA in FIG. 3). As a result, the end position F1 of the lead portion L of the adhesive tape 11 and the end position F2 of the pickup tape 21 coincide with each other.
　リード部分Ｌを終端させた後、ピックアップテープ２１が貼り付けられた複数条の接着テープ１１のそれぞれを巻付装置１０３によって接着テープ巻回リール１の巻芯２に巻き付ける。そして、リード部分Ｌを接着テープ巻回リール１の側板３，３間から引き出し、シールＳによって一方の側板３の外面に固定する。これにより、図１に示したように、接着テープ巻回リール１に巻き付けられた接着テープ１１が得られる。 After terminating the lead portion L, the plurality of adhesive tapes 11 with the pickup tape 21 attached thereto are wound around the core 2 of the adhesive tape winding reel 1 by the winding device 103. Then, the lead portion L is pulled out from between the side plates 3 and 3 of the adhesive tape winding reel 1 and fixed to the outer surface of one side plate 3 by a seal S. Thereby, as shown in FIG. 1, the adhesive tape 11 wound around the adhesive tape winding reel 1 is obtained.
　以上説明したように、接着テープ１１では、リード部分Ｌに厚さ１０μｍ以上３０μｍ以下のピックアップテープ２１が設けられている。ピックアップテープ２１の厚さを上記範囲とすることで、接着テープ１１の幅に対するピックアップテープ２１の厚さを相対的に小さくできる。したがって、ピックアップテープ２１を張り付けた状態でスリット加工によって接着テープ１１を幅細に切断することが可能となり、製造工程の簡単化が図られる。また、リード部分Ｌの先端側において接着層１３が露出しないので、リード部分Ｌを接着テープ巻回リール１に固定した場合であっても、使用時にリード部分Ｌを接着テープ巻回リール１から外すときに接着層１３がセパレータ１２から剥離してしまうことを防止できる。 As described above, in the adhesive tape 11, the pickup tape 21 having a thickness of 10 μm to 30 μm is provided in the lead portion L. By setting the thickness of the pickup tape 21 in the above range, the thickness of the pickup tape 21 relative to the width of the adhesive tape 11 can be made relatively small. Therefore, the adhesive tape 11 can be cut in a narrow width by slitting in a state where the pickup tape 21 is attached, and the manufacturing process can be simplified. In addition, since the adhesive layer 13 is not exposed at the leading end side of the lead portion L, even when the lead portion L is fixed to the adhesive tape winding reel 1, the lead portion L is detached from the adhesive tape winding reel 1 during use. At times, the adhesive layer 13 can be prevented from peeling off from the separator 12.
　また、本実施形態では、ピックアップテープ２１は、セパレータ２２の一面２２ａ側に接着層２３を有し、接着層２３と接着テープ１１側の接着層１３とが対向するようにリード部分Ｌに固定されている。これにより、ピックアップテープ２１を接着テープ１１に対してしっかりと固定できる。 Further, in the present embodiment, the pickup tape 21 has the adhesive layer 23 on one surface 22 a side of the separator 22 and is fixed to the lead portion L such that the adhesive layer 23 and the adhesive layer 13 on the adhesive tape 11 face each other. ing. Thereby, the pickup tape 21 can be firmly fixed to the adhesive tape 11.
　また、本実施形態では、ピックアップテープ２１側の接着層２３には、接着テープ１１側の接着層１３とは異なる色が着色されている。これにより、ピックアップテープ２１の視認性及び識別性を高めることができる。したがって、接着テープ１１の使用時にリード部分Ｌを切断する場合などの作業性を向上できる。 Further, in the present embodiment, the adhesive layer 23 on the side of the pickup tape 21 is colored in a color different from that of the adhesive layer 13 on the side of the adhesive tape 11. Thereby, the visibility and the identifiability of the pickup tape 21 can be enhanced. Therefore, the workability in the case where the lead portion L is cut when using the adhesive tape 11 can be improved.
　また、本実施形態では、接着テープ１１の長手方向に直交する幅は、０．８ｍｍ以下となっている。例えば接着テープ１１をスリット加工する加工装置１０４では、上刃と下刃とをラップさせて接着テープ１１の切断を行うが、スリット幅が狭くなると、上刃と下刃との間のクリアランスも狭くなる。このため、切断対象の厚さが幅に比べて相対的に大きくなると、切断対象に刃を通すことが難しくなる。この点については、例えば上刃を薄型化することである程度対応可能となるが、刃の摩耗性等の問題から上刃の薄型化にも限界がある。かかる事情により、接着テープの幅が０．８ｍｍ以下である場合、従来のようなリードテープを貼り付けた状態では接着テープのリード部分をスリット加工することが困難となる。したがって、本実施形態のように接着テープ１１の幅が０．８ｍｍ以下である場合には、リード部分Ｌに厚さ１０μｍ以上３０μｍ以下のピックアップテープ２１を適用することが特に有用となる。 Further, in the present embodiment, the width orthogonal to the longitudinal direction of the adhesive tape 11 is 0.8 mm or less. For example, in the processing apparatus 104 for slitting the adhesive tape 11, the upper blade and the lower blade are lapped to cut the adhesive tape 11, but when the slit width becomes narrow, the clearance between the upper blade and the lower blade is also narrow. Become. For this reason, when the thickness of the object to be cut becomes relatively larger than the width, it becomes difficult to pass the blade through the object to be cut. In this regard, for example, the upper blade can be made thin by adapting to a certain degree, but there is a limit to the thinning of the upper blade due to the problem such as the abradability of the blade. Under such circumstances, when the width of the adhesive tape is 0.8 mm or less, it is difficult to slit the lead portion of the adhesive tape in the state where the conventional lead tape is attached. Therefore, when the width of the adhesive tape 11 is 0.8 mm or less as in the present embodiment, it is particularly useful to apply the pickup tape 21 having a thickness of 10 μm to 30 μm to the lead portion L.
　接着テープは、種々の変形を採り得る。図４は、接着テープの変形例を示す模式的な断面図である。同図に示す接着テープ３１では、リード部分Ｌに設けられるピックアップテープ４１の構成が上記実施形態と異なっている。具体的には、ピックアップテープ４１は、セパレータ（第２のセパレータ）２２と、セパレータ２２の一面２２ａ側に形成された接着層（第２の接着層）２３と、セパレータ２２の他面２２ｂ側に形成された接着層（第３の接着層）４３とによる三層構造をなしている。ピックアップテープ４１の厚さ（セパレータ２２、接着層２３、及び接着層４３の合計の厚さ）は、例えば１０μｍ以上３０μｍ以下、好ましくは１０μｍ以上２０μｍ以下である。 The adhesive tape can adopt various modifications. FIG. 4 is a schematic cross-sectional view showing a modified example of the adhesive tape. In the adhesive tape 31 shown in the figure, the configuration of the pickup tape 41 provided in the lead portion L is different from that of the above embodiment. Specifically, the pickup tape 41 includes a separator (second separator) 22, an adhesive layer (second adhesive layer) 23 formed on one surface 22 a of the separator 22, and the other surface 22 b of the separator 22. A three-layer structure is formed by the adhesive layer (third adhesive layer) 43 formed. The thickness of the pickup tape 41 (the total thickness of the separator 22, the adhesive layer 23, and the adhesive layer 43) is, for example, 10 μm or more and 30 μm or less, preferably 10 μm or more and 20 μm or less.
　接着層４３は、例えば接着層２３と同一の材料によって構成されている。接着層４３には、接着層２３と同様に、接着テープ３１側の接着層１３とは異なる色が着色されていてもよい。接着テープ３１では、ピックアップテープ４１の終端位置Ｆ２は、接着テープ３１のリード部分Ｌの終端位置Ｆ１と一致しているが、リード部分Ｌの終端側には、セパレータ２２の他面２２ｂが接着層１３から露出する露出領域Ｒが設けられている。終端位置Ｆ２からの露出領域Ｒの長さは、例えば５ｍｍ以上３０ｍｍ未満となっている。 The adhesive layer 43 is made of, for example, the same material as the adhesive layer 23. Similar to the adhesive layer 23, the adhesive layer 43 may be colored in a color different from that of the adhesive layer 13 on the adhesive tape 31 side. In the adhesive tape 31, the end position F2 of the pickup tape 41 coincides with the end position F1 of the lead portion L of the adhesive tape 31, but on the end side of the lead portion L, the other surface 22b of the separator 22 is an adhesive layer An exposed area R exposed from 13 is provided. The length of the exposure area R from the end position F2 is, for example, 5 mm or more and less than 30 mm.
　このような接着テープ３１においても、ピックアップテープ４１を張り付けた状態でスリット加工によって接着テープ３１を幅細に切断することが可能となり、製造工程の簡単化が図られる。また、リード部分Ｌの先端側において接着層１３が露出しないので、リード部分Ｌを接着テープ巻回リール１に固定した場合であっても、使用時にリード部分Ｌを接着テープ巻回リール１から外すときに接着層１３がセパレータ１２から剥離してしまうことを防止できる。 Also in such an adhesive tape 31, the adhesive tape 31 can be cut in a narrow width by slitting in a state where the pickup tape 41 is attached, and the manufacturing process can be simplified. In addition, since the adhesive layer 13 is not exposed at the leading end side of the lead portion L, even when the lead portion L is fixed to the adhesive tape winding reel 1, the lead portion L is detached from the adhesive tape winding reel 1 during use. At times, the adhesive layer 13 can be prevented from peeling off from the separator 12.
　また、接着テープ３１では、シールＳ（図１参照）を別に用いずに、接着層４３によってリード部分Ｌを接着テープ巻回リール１に固定できる。また、リード部分Ｌの終端側に露出領域Ｒを設けることにより、露出領域Ｒがリード部分Ｌを接着テープ巻回リール１から剥がすときの把持部となり、使用時にリード部分Ｌを接着テープ巻回リール１から容易に外すことができる。 Further, in the adhesive tape 31, the lead portion L can be fixed to the adhesive tape winding reel 1 by the adhesive layer 43 without separately using the seal S (see FIG. 1). Further, by providing the exposed region R on the end side of the lead portion L, the exposed region R becomes a grip when peeling the lead portion L from the adhesive tape winding reel 1 and the lead portion L is wound with the adhesive tape winding in use. It can be easily removed from 1.
　図５は、接着テープの別の変形例を示す模式的な断面図である。同図に示す接着テープ５１では、リード部分Ｌに設けられるピックアップテープ６１の構成が上記実施形態と更に異なっている。具体的には、ピックアップテープ６１は、セパレータ（第２のセパレータ）２２と、セパレータ２２の他面２２ｂ側に形成された接着層（第４の接着層）６３とによる二層構造をなしている。ピックアップテープ６１は、接着テープ５１側の接着層１３にセパレータ２２の一面２２ａ側が直接貼り付けられることによって接着テープ５１に固定されている。ピックアップテープ６１の厚さ（セパレータ２２及び接着層６３の合計の厚さ）は、例えば１０μｍ以上３０μｍ以下、好ましくは１０μｍ以上２０μｍ以下である。 FIG. 5 is a schematic cross-sectional view showing another modified example of the adhesive tape. In the adhesive tape 51 shown in the figure, the configuration of the pickup tape 61 provided in the lead portion L is further different from that of the above embodiment. Specifically, the pickup tape 61 has a two-layer structure of a separator (second separator) 22 and an adhesive layer (fourth adhesive layer) 63 formed on the other surface 22 b side of the separator 22. . The pickup tape 61 is fixed to the adhesive tape 51 by directly sticking the one surface 22 a side of the separator 22 to the adhesive layer 13 on the adhesive tape 51 side. The thickness of the pickup tape 61 (the total thickness of the separator 22 and the adhesive layer 63) is, for example, 10 μm or more and 30 μm or less, preferably 10 μm or more and 20 μm or less.
　接着層６３は、例えば接着層２３と同一の構成を有している。すなわち、接着層６３は、接着層２３と同一の材料によって構成されている。また、接着層６３には、接着テープ５１側の接着層１３とは異なる色が着色されている。ピックアップテープ６１の終端位置Ｆ２は、接着テープ５１のリード部分Ｌの終端位置Ｆ１と一致しているが、リード部分Ｌの終端側には、セパレータ２２の他面２２ｂが接着層６３から露出する露出領域Ｒが設けられている。終端位置Ｆ２からの露出領域Ｒの長さは、例えば５ｍｍ以上３０ｍｍ未満となっている。 The adhesive layer 63 has, for example, the same configuration as the adhesive layer 23. That is, the adhesive layer 63 is made of the same material as the adhesive layer 23. The adhesive layer 63 is colored in a color different from that of the adhesive layer 13 on the adhesive tape 51 side. The end position F2 of the pickup tape 61 coincides with the end position F1 of the lead portion L of the adhesive tape 51, but on the end side of the lead portion L, the other surface 22b of the separator 22 is exposed from the adhesive layer 63 An area R is provided. The length of the exposure area R from the end position F2 is, for example, 5 mm or more and less than 30 mm.
　このような接着テープ５１においても、ピックアップテープ６１を張り付けた状態でスリット加工によって接着テープ５１を幅細に切断することが可能となり、製造工程の簡単化が図られる。また、リード部分Ｌの先端側において接着層１３が露出しないので、リード部分Ｌを接着テープ巻回リール１に固定した場合であっても、使用時にリード部分Ｌを接着テープ巻回リール１から外すときに接着層１３がセパレータ１２から剥離してしまうことを防止できる。 Also in such an adhesive tape 51, it is possible to cut the adhesive tape 51 in a narrow width by slitting in a state where the pickup tape 61 is stuck, and the manufacturing process can be simplified. In addition, since the adhesive layer 13 is not exposed at the leading end side of the lead portion L, even when the lead portion L is fixed to the adhesive tape winding reel 1, the lead portion L is detached from the adhesive tape winding reel 1 during use. At times, the adhesive layer 13 can be prevented from peeling off from the separator 12.
　また、接着テープ５１では、シールＳ（図１参照）を別に用いずに、接着層６３によってリード部分Ｌを接着テープ巻回リール１に固定できる。また、リード部分Ｌの終端側に露出領域Ｒを設けることにより、露出領域Ｒがリード部分Ｌを接着テープ巻回リール１から剥がすときの把持部となり、使用時にリード部分Ｌを接着テープ巻回リール１から容易に外すことができる。さらに、接着テープ５１では、ピックアップテープ６１におけるセパレータ２２の一面２２ａ側に接着層を設けないことで、ピックアップテープ６１を含めたリード部分Ｌの全体の厚さを抑えることができる。したがって、ピックアップテープ６１を張り付けた状態でのスリット加工を一層確実に実施できる。 Further, in the adhesive tape 51, the lead portion L can be fixed to the adhesive tape winding reel 1 by the adhesive layer 63 without separately using the seal S (see FIG. 1). Further, by providing the exposed region R on the end side of the lead portion L, the exposed region R becomes a grip when peeling the lead portion L from the adhesive tape winding reel 1 and the lead portion L is wound with the adhesive tape winding in use. It can be easily removed from 1. Furthermore, in the adhesive tape 51, by not providing the adhesive layer on the side of the surface 22 a of the separator 22 in the pickup tape 61, the entire thickness of the lead portion L including the pickup tape 61 can be suppressed. Therefore, slit processing in a state where the pickup tape 61 is attached can be implemented more reliably.
　図６は、接着テープの別の変形例を示す模式的な断面図である。同図に示す接着テープ７１では、リード部分Ｌに設けられるピックアップテープ８１の構成が上記実施形態と更に異なっている。具体的には、ピックアップテープ８１は、セパレータ（第２のセパレータ）２２のみの一層構成をなしている。ピックアップテープ８１は、接着テープ７１側の接着層１３にセパレータ２２の一面２２ａ側が直接貼り付けられることによって接着テープ７１に固定されている。この接着テープ７１のリード部分Ｌを接着テープ巻回リール１に固定する場合には、図１の場合と同様にシールＳを用いればよい。ピックアップテープ８１の厚さ（セパレータ２２の厚さ）は、例えば１０μｍ以上３０μｍ以下、好ましくは１０μｍ以上２０μｍ以下である。 FIG. 6 is a schematic cross-sectional view showing another modified example of the adhesive tape. In the adhesive tape 71 shown in the figure, the configuration of the pickup tape 81 provided in the lead portion L is further different from that of the above embodiment. Specifically, the pickup tape 81 has a single-layer configuration of only the separator (second separator) 22. The pickup tape 81 is fixed to the adhesive tape 71 by directly adhering the one surface 22 a side of the separator 22 to the adhesive layer 13 on the adhesive tape 71 side. When the lead portion L of the adhesive tape 71 is fixed to the adhesive tape winding reel 1, the seal S may be used as in the case of FIG. The thickness of the pickup tape 81 (the thickness of the separator 22) is, for example, 10 μm or more and 30 μm or less, preferably 10 μm or more and 20 μm or less.
　このような接着テープ７１においても、ピックアップテープ８１を張り付けた状態でスリット加工によって接着テープ７１を幅細に切断することが可能となり、製造工程の簡単化が図られる。また、リード部分Ｌの先端側において接着層１３が露出しないので、リード部分Ｌを接着テープ巻回リール１に固定した場合であっても、使用時にリード部分Ｌを接着テープ巻回リール１から外すときに接着層１３がセパレータ１２から剥離してしまうことを防止できる。また、接着テープ７１では、ピックアップテープ８１がセパレータ２２のみの一層構造となっているため、ピックアップテープ８１を含めたリード部分Ｌの全体の厚さを一層抑えることができる。したがって、ピックアップテープ８１を張り付けた状態でのスリット加工をさらに確実に実施できる。 Also in such an adhesive tape 71, it is possible to cut the adhesive tape 71 in a narrow width by slitting in a state where the pickup tape 81 is stuck, and the manufacturing process can be simplified. In addition, since the adhesive layer 13 is not exposed at the leading end side of the lead portion L, even when the lead portion L is fixed to the adhesive tape winding reel 1, the lead portion L is detached from the adhesive tape winding reel 1 during use. At times, the adhesive layer 13 can be prevented from peeling off from the separator 12. Further, in the adhesive tape 71, since the pickup tape 81 has a single-layer structure of only the separator 22, the overall thickness of the lead portion L including the pickup tape 81 can be further suppressed. Therefore, slit processing in a state where the pickup tape 81 is attached can be implemented more reliably.
　１…接着テープ巻回リール、２…巻芯、３…側板、１１，３１，５１，７１…接着テープ、１２…セパレータ（第１のセパレータ）、１２ａ…一面、１３…接着層（第１の接着層）、２１，４１，６１，８１…ピックアップテープ、２２…セパレータ（第２のセパレータ）、２２ａ…一面、２２ｂ…他面、２３…接着層（第２の接着層）、４３…接着層（第３の接着層）、６３…接着層（第４の接着層）、Ｌ…リード部分、Ｒ…露出領域。 DESCRIPTION OF SYMBOLS 1 ... Adhesive tape winding reel, 2 ... Winding core, 3 ... Side plate, 11, 31, 51, 71 ... Adhesive tape, 12 ... Separator (1st separator), 12a ... One surface, 13 ... Adhesive layer (1st Adhesive layer), 21, 41, 61, 81: Pick-up tape, 22: Separator (second separator), 22a: One surface, 22b: Other surface, 23: Adhesive layer (second adhesive layer), 43: Adhesive layer (Third adhesive layer) 63: Adhesive layer (fourth adhesive layer) L: Lead portion R: exposed area

Claims (9)

  1. 　第１のセパレータの一面側に第１の接着層が設けられた接着テープであって、
    　前記接着テープのリード部分には、少なくとも前記リード部分の先端側において前記第１の接着層が露出しないように、当該リード部分と同じ位置で終端する厚さ１０μｍ以上３０μｍ以下のピックアップテープが設けられている接着テープ。     An adhesive tape provided with a first adhesive layer on one side of a first separator,
    The lead portion of the adhesive tape is provided with a pickup tape having a thickness of 10 μm or more and 30 μm or less that terminates at the same position as the lead portion so that the first adhesive layer is not exposed at least on the tip side of the lead portion. Adhesive tape.
  2. 　前記ピックアップテープは、第２のセパレータの一面側に第２の接着層を有し、前記第２の接着層と前記接着テープ側の第１の接着層とが対向するように前記リード部分に固定されている請求項１記載の接着テープ。 The pickup tape has a second adhesive layer on one side of a second separator, and is fixed to the lead portion such that the second adhesive layer and the first adhesive layer on the adhesive tape face each other. The adhesive tape according to claim 1.
  3. 　前記ピックアップテープは、前記第２のセパレータの他面側に第３の接着層を有し、
    　前記リード部分の終端側には、前記第２のセパレータが前記第３の接着層から露出する露出領域が設けられている請求項２記載の接着テープ。     The pickup tape has a third adhesive layer on the other side of the second separator,
    The adhesive tape according to claim 2, wherein an exposed area where the second separator is exposed from the third adhesive layer is provided on the end side of the lead portion.
  4. 　前記ピックアップテープは、第２のセパレータの他面側に第４の接着層を有し、前記第２のセパレータが前記接着テープ側の前記第１の接着層に貼り付けられることによって前記リード部分に固定され、
    　前記リード部分の終端側には、前記第２のセパレータが前記第４の接着層から露出する露出領域が設けられている請求項１記載の接着テープ。     The pickup tape has a fourth adhesive layer on the other side of the second separator, and the second separator is attached to the first adhesive layer on the adhesive tape side to the lead portion. Fixed and
    The adhesive tape according to claim 1, wherein an exposed area in which the second separator is exposed from the fourth adhesive layer is provided on the end side of the lead portion.
  5. 　前記ピックアップテープは、第２のセパレータのみによって構成され、前記第２のセパレータが前記接着テープ側の前記第１の接着層に貼り付けられることによって前記リード部分に固定されている請求項１記載の接着テープ。 The pickup tape according to claim 1, wherein the pickup tape is constituted only by a second separator, and the second separator is fixed to the lead portion by being attached to the first adhesive layer on the adhesive tape side. Adhesive tape.
  6. 　前記ピックアップテープ側の接着層には、前記第１の接着層とは異なる色が着色されている請求項２～４のいずれか一項記載の接着テープ。 The adhesive tape according to any one of claims 2 to 4, wherein the adhesive layer on the side of the pickup tape is colored in a color different from that of the first adhesive layer.
  7. 　長手方向に直交する幅は、０．８ｍｍ以下である請求項１～６のいずれか一項記載の接着テープ。 The adhesive tape according to any one of claims 1 to 6, wherein the width orthogonal to the longitudinal direction is 0.8 mm or less.
  8. 　請求項１～７のいずれか一項記載の接着テープが巻き付けられた巻芯と、
    　前記巻芯を挟んで互いに対向する一対の側板と、を備え、
    　前記巻芯から引き出された前記接着テープの前記リード部分が前記側板の外面側に固定された接着テープ巻回リール。     A core on which the adhesive tape according to any one of claims 1 to 7 is wound;
    And a pair of side plates facing each other across the winding core,
    An adhesive tape winding reel in which the lead portion of the adhesive tape drawn from the winding core is fixed to the outer surface side of the side plate.
  9. 　第１のセパレータの一面側に第１の接着層が設けられた接着テープの製造方法であって、
    　前記接着テープを原反から繰り出しながら、前記第１の接着層が露出しなくなる向きに前記原反の幅と等幅の厚さ１０μｍ以上３０μｍ以下のピックアップテープを一定の長さ毎に前記第１の接着層に貼り付け、
    　前記ピックアップテープが貼り付けられた前記接着テープを長手方向にスリット加工して複数条の接着テープに切断し、
    　前記複数条の接着テープを前記ピックアップテープと共に幅方向に切断してリード部分を終端させた後、前記複数条の接着テープをそれぞれリールに巻き取る接着テープの製造方法。     A method for producing an adhesive tape, wherein a first adhesive layer is provided on one side of a first separator,
    While feeding the adhesive tape from the raw fabric, the first adhesive layer is not exposed. The first adhesive layer has a thickness equal to 10 μm to 30 μm, which is equal to the width of the original fabric. Paste on the adhesive layer of
    Slitting the adhesive tape to which the pickup tape is attached in the longitudinal direction and cutting it into a plurality of adhesive tapes;
    A method of manufacturing an adhesive tape, wherein the plurality of adhesive tapes are cut in the width direction together with the pickup tape to terminate a lead portion, and then the plurality of adhesive tapes are respectively wound on a reel.
PCT/JP2018/036045 2017-09-29 2018-09-27 Adhesive tape, reel of adhesive tape, and production method for adhesive tape WO2019065881A1 (en)

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