JP2015009910A - Adhesive reel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adhesive reel capable of preventing a connection mistake that the front and rear surfaces of a used adhesive tape and a new adhesive tape are connected reversely.SOLUTION: An adhesive reel 10 comprises: an adhesive tape 20 having a tape-like base material 21 and an adhesive layer 22 formed on one surface of the base material 21; and a winding core 31 to wind the adhesive tape 20. A tape-like end tape 40 is connected to the terminal end of the adhesive tape 20 and a tape-like lead tape 50 is connected to the starting end of the adhesive tape 20. The colors of the front surface and the rear surface of the end tape 40 are different and the colors of the front surface and the rear surface of the lead tape 50 are different.

Description

  The present invention relates to an adhesive reel in which an adhesive tape on which an adhesive layer for bonding and fixing an electronic component and a circuit board or circuit boards is formed is wound around a winding core.

  For example, anisotropic conductive tape (ACF) is known as an adhesive tape used for connecting members to be connected having a large number of electrodes and fixing a lead frame. Anisotropic conductive tape, for example, maintains the electrical connection between opposing electrodes when connecting a member such as a semiconductor element such as an IC or LSI or a package to a substrate such as a printed wiring board, LCD glass substrate, or flexible printed circuit board. A connection material that performs electrical connection and mechanical fixation so as to maintain an insulating state between adjacent electrodes. Such adhesive tapes are also used for adhesion between electronic components such as liquid crystal panels, PDP (Plasma Display Panel), EL (Electroluminescence) panels, and bare chip mounting, and circuit boards, and between circuit boards. ing.

  In this adhesive tape, for example, an adhesive layer containing an adhesive component containing a thermosetting resin and conductive particles blended as needed is formed on a base material such as a polyethylene terephthalate film (PET). It is formed in a shape. Then, the obtained sheet-shaped raw material is cut into a long tape shape so as to have a width according to the use, and this is wound around a core to produce an adhesive reel (for example, Patent Documents) 1). Generally, the width of such an adhesive tape is about 0.5 mm or more and 3.5 mm or less, and the length of the adhesive tape wound around the winding core is about 50 m or more and 500 m or less.

  When attaching the adhesive tape to the adhesive device, attach the adhesive reel to the feeding side of the adhesive device, pull out the starting end of the adhesive tape from the adhesive reel, and place the starting end on the receiving side of the adhesive device. Install it on the reel. Then, the adhesive tape drawn out from the adhesive reel is heated and pressed from the base material side with a heating and pressurizing head so that the adhesive is pressure-bonded to the circuit board and the like, and the remaining base material is wound around the receiving reel on the receiving side taking it.

  When the adhesive tape on the adhesive reel is finished, the finished adhesive reel and the take-up reel that has wound the substrate are removed from the adhesive device, and a new take-up reel and a new adhesive reel are mounted on the adhesive device. The starting end portion of the adhesive tape pulled out from the adhesive reel is again attached to the take-up reel.

JP 2001-284005 A

  In recent years, with an increase in the size of a panel screen in a liquid crystal panel, a PDP or the like, the bonding area of a circuit board has increased, and the amount of adhesive used at one time has increased. Also, the amount of adhesive used has increased due to the expansion of the application of adhesives. For this reason, in the electronic device manufacturing factory, the frequency of replacement of the adhesive reel is increased, and the replacement of the adhesive reel takes time, and thus there is a problem that the production efficiency of the electronic device cannot be improved. To solve this problem, there is a measure to increase the amount of adhesive per adhesive reel and increase the frequency of replacement of the adhesive reel by increasing the number of windings of the adhesive tape on the adhesive reel. However, since the tape width of the adhesive tape is as thin as 0.5 mm or more and 3.5 mm or less, if the number of windings of the adhesive tape is increased, the roll may collapse. Moreover, since the pressure which acts on an adhesive tape will become high when there are many windings of an adhesive tape, an adhesive oozes out from the both ends in the width direction of an adhesive tape, and there exists a possibility of causing a blocking. Further, when the number of windings of the adhesive tape is increased, the diameter of the reel side plate that supports the adhesive tape wound around the winding core from both sides also increases, so that there is a possibility that it cannot be mounted on an existing bonding apparatus.

  In view of these problems, electronic equipment manufacturing factories are considering the introduction of equipment for connecting the end of a used adhesive tape and the start of a new adhesive tape by thermocompression bonding.

  When connecting an adhesive tape using such equipment, first apply the adhesive to either the front surface or the back surface of the adhesive tape, and then start the surface of the adhesive tape. And an adhesive agent is apply | coated to any one surface of a back surface. For example, when an adhesive is applied to the surface of the end of the adhesive tape, an adhesive is applied to the back of the start of the adhesive tape, and an adhesive is applied to the back of the end of the adhesive tape. Then, an adhesive is applied to the surface of the starting end of the adhesive tape. When the adhesive tape on the adhesive reel installed in the adhesive device is finished, the adhesive at the beginning of the new adhesive tape is applied to the surface where the adhesive at the end of the used adhesive tape is applied. Adhere the finished surface. By doing in this way, exchange of an adhesive reel can be performed easily and the improvement of the production efficiency of an electronic device can be aimed at.

  However, since the connection work between the end of the used adhesive tape and the start of the new adhesive tape is performed by humans, the used adhesive tape and the new adhesive tape are turned upside down due to human error. May be connected. When such a connection error occurs, the adhesive cannot be pressure-bonded to a circuit board or the like, so that it cannot function as an adhesive tape. Furthermore, the used adhesive tape and a new adhesive can be used. Since the connection strength with the tape is weakened, the new adhesive tape may be peeled off from the used adhesive tape.

  Then, an object of this invention is to provide the adhesive reel which can prevent the connection mistake which connects a used adhesive tape and a new adhesive tape upside down.

  The adhesive reel according to the present invention includes a tape-shaped base material, an adhesive tape formed on one surface of the base material, an adhesive tape, and a core around which the adhesive tape is wound, An adhesive reel with a tape-shaped end tape connected to the end of the adhesive tape, a tape-shaped lead tape connected to the starting end of the adhesive tape, and the color of the front and back surfaces of the end tape The lead tape has different front and back colors.

  According to the adhesive reel of the present invention, since the front and back colors of the end tape and the lead tape are different, the front and back of the end tape and the lead tape can be easily visually identified. For this reason, when exchanging the adhesive reel, it is possible to prevent a connection mistake in which the end tape connected to the used adhesive tape and the lead tape connected to the new adhesive tape are connected reversely. . For example, if adhesive is applied to either the front or back surface of the end tape, and the adhesive is applied to either the front or back surface of the lead tape, the adhesive reel is replaced. When checking the colors of the front and back surfaces of the end tape and lead tape, the side of the end tape connected to the used adhesive tape and the lead connected to the new adhesive tape The surface to which the adhesive of the tape is applied can be easily and reliably adhered. Further, even when the adhesive layer is formed on the end tape and the lead tape, the adhesive layer can be formed on an appropriate surface of the end tape and the lead tape.

  In this case, the front and back colors of the end tape and the lead tape can be represented by at least one of hue, saturation, and brightness. In this way, the front and back surfaces of the end tape and the lead tape can be visually distinguished easily by representing the colors of the front and back surfaces of the end tape and the lead tape by at least one of hue, saturation, and brightness.

  The adhesive reel according to the present invention includes a tape-shaped base material, an adhesive tape formed on one surface of the base material, an adhesive tape, and a core around which the adhesive tape is wound, An adhesive reel having a tape-shaped end tape connected to the end of the adhesive tape, a tape-shaped lead tape connected to the starting end of the adhesive tape, and Colored layers having different colors are formed, and colored layers having different colors are formed on the front and back surfaces of the lead tape.

  According to the adhesive reel of the present invention, the colors of the colored layers formed on the front and back surfaces of the end tape and the lead tape are different, so that the front and back surfaces of the end tape and the lead tape can be easily visually identified. For this reason, when exchanging the adhesive reel, it is possible to prevent a connection mistake in which the end tape connected to the used adhesive tape and the lead tape connected to the new adhesive tape are connected reversely. . For example, if adhesive is applied to either the front or back surface of the end tape, and the adhesive is applied to either the front or back surface of the lead tape, the adhesive reel is replaced. When checking the color of the colored layers formed on the front and back surfaces of the end tape and lead tape, the surface of the end tape connected to the used adhesive tape and the new adhesive It is possible to easily and reliably bond the surface of the lead tape connected to the tape to which the adhesive is applied. Further, even when the adhesive layer is formed on the end tape and the lead tape, the adhesive layer can be formed on an appropriate surface of the end tape and the lead tape.

  In this case, the color of the colored layer can be represented by at least one of hue, saturation, and brightness. In this way, the color of the colored layers formed on the front and back surfaces of the end tape and the lead tape is represented by at least one of hue, saturation, and brightness, so that the front and back surfaces of the end tape and the lead tape can be easily visually recognized. Can be identified.

  Further, the present invention is such that the adhesive tape is wound around the core, or the adhesive layer is disposed on the core side so that the base material is disposed on the core side. The agent tape may be wound around the core. In any of the winding methods, the front and back of the end tape and the lead tape can be easily visually identified.

  In the present invention, the tape-shaped cover tape is laminated on the surface of the adhesive layer, and the adhesive tape is wound around the core so that the cover tape is arranged on the core side. Alternatively, a tape-like cover tape is laminated on the surface of the adhesive layer, and the adhesive tape is wound around the core so that the base material is disposed on the core side. it can. When the adhesive tape is wound around the winding core, the base material and the adhesive layer are in close contact between the adhesive tape wound inside and the adhesive tape wound outside, By laminating the cover tape in this way, it is possible to separate the base material and the adhesive layer between the adhesive tape wound inside and the adhesive tape wound outside. The adhesive tape can be pulled out from the adhesive reel without peeling off the adhesive layer.

  In the present invention, the color on the core side of the adhesive tape may be different from the color on the core side of the end tape. In the present invention, the color on the side opposite to the core of the adhesive tape may be different from the color on the side opposite to the core of the end tape. In this way, it is possible to automatically detect the end of the adhesive tape by detecting the color on the core side of the adhesive tape or the color on the side opposite to the core of the adhesive tape. it can.

  In the present invention, an adhesive layer may be formed on the surface of the end tape on the core side and on the surface opposite to the core of the lead tape. In the present invention, an adhesive layer may be formed on the surface of the end tape opposite to the core and the surface of the lead tape on the core side. Thus, by forming an adhesive layer on the surface of the end tape on the core side and the surface on the side opposite to the core of the lead tape, or on the surface on the side opposite to the core of the end tape and the lead By forming an adhesive layer on the core side surface of the tape, the used adhesive tape and a new adhesive tape can be easily connected. Further, by bonding these adhesive layers to each other, it is possible to prevent a connection error in which a used adhesive tape and a new adhesive tape are connected reversely.

  ADVANTAGE OF THE INVENTION According to this invention, the adhesive reel which can prevent the connection mistake which connects a used adhesive tape and a new adhesive tape upside down can be provided.

It is a typical perspective view of an adhesive reel. It is typical sectional drawing which shows the layer structure of an adhesive tape. It is typical sectional drawing which shows the termination | terminus part of an adhesive tape. It is typical sectional drawing which shows the start end part of an adhesive tape. It is a schematic block diagram of the adhesion | attachment apparatus. It is typical sectional drawing which shows the layer structure of an adhesive tape. It is typical sectional drawing which shows the termination | terminus part of an adhesive tape. It is typical sectional drawing which shows the start end part of an adhesive tape.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of an adhesive reel according to the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals.

(First embodiment)
FIG. 1 is a schematic perspective view of an adhesive reel. As shown in FIG. 1, the adhesive reel 10 according to the first embodiment includes an adhesive tape 20 and an adhesive tape reel 30 around which the adhesive tape 20 is wound.

  The adhesive tape 20 is formed in a long tape shape. The length of the adhesive tape 20 is not particularly limited, but can be, for example, 10 m or more and 1000 m or less, and is set to 300 m in this embodiment. The width of the adhesive tape 20 is not particularly limited, but can be, for example, 0.5 mm or more and 10.0 mm or less. In this case, the width is preferably 0.5 mm or more and 3.0 mm or less, and 0.5 mm or more. More preferably, it is 2.0 mm or less. The thickness of the adhesive tape 20 is not particularly limited, but can be, for example, 5 μm or more and 100 μm or less. In this case, the thickness is preferably 10 μm or more and 40 μm or less, and more preferably 10 μm or more and 20 μm or less.

  FIG. 2 is a schematic cross-sectional view showing the layer structure of the adhesive tape. As shown in FIG. 2, the adhesive tape 20 has a two-layer structure of a base material 21 and an adhesive layer 22 formed on one surface of the base material 21.

  The material of the base material 21 is not particularly limited, but from the viewpoint of strength and adhesive peelability, for example, stretched 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 rubber, liquid crystal polymer, and the like can be used.

  Moreover, you may use as the base material 21 what the mold release process was performed to the surface on the opposite side to the surface in which the adhesive bond layer 22 is formed. Examples of mold release agents that perform mold release treatment include olefin mold release agents, ethylene glycol montanate esters, carnauba wax, low melting point waxes such as petroleum waxes, low molecular weight fluororesins, silicone or fluorine surfactants, oils A silicone resin such as a wax, a resin, a polyester-modified silicone resin, or the like can be used. Generally, a silicone resin is used.

  The thickness of the substrate 21 is not particularly limited, but can be, for example, 10 μm or more and 200 μm or less. In this case, it is preferably 20 μm or more and 100 μm or less. By setting the thickness of the base material 21 to 10 μm or more, it is possible to prevent the adhesive tape 20 from being cut during the conveyance of the adhesive reel 10, and by setting the thickness to 20 μm or more, this The effect can be further enhanced. On the other hand, by setting the thickness of the base material 21 to 200 μm or less, when the direction of the adhesive tape 20 pulled out from the adhesive reel 10 is changed by the guide pin, the adhesive tape 20 is appropriately followed by the guide pin. And the number of windings on the adhesive tape reel 30 can be increased.

  Although it does not restrict | limit especially as the adhesive bond layer 22, For example, using the adhesive agent containing resin, such as a thermoplastic resin, a thermosetting resin, or the mixed system (mixed resin) of a thermoplastic resin and a thermosetting resin, is used. Can do. Representative thermoplastic resins include, for example, styrene resin and polyester resin, and representative thermosetting resins include, for example, epoxy resin, acrylic resin, and silicone resin. Can be mentioned.

  Moreover, the adhesive bond layer 22 can use the adhesive composition containing an adhesive component and the electroconductive particle contained if needed, for example.

  As the adhesive component, for example, a material showing 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 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 has excellent adhesion in terms of molecular structure. Epoxy adhesives are mainly composed of, for example, high molecular weight epoxy, solid epoxy or liquid epoxy, or epoxy modified with urethane, polyester, acrylic rubber, nitrile rubber (NBR), synthetic linear polyamide or the like. Can be used. The epoxy adhesive is generally obtained by adding a curing agent, a catalyst, a coupling agent, a filler, or the like to the above-mentioned epoxy which is a main component. A radical curing adhesive composition as described in International Publication No. 2009/063827 can also be used.

  Examples of the conductive particles include metal particles such as Au, Ag, Pt, Ni, Cu, W, Sb, Sn, and solder, and carbon particles. Further, coated particles in which non-conductive glass, ceramic, plastic, or the like is used as a core and the core is coated with the above metal or carbon may be used. The average particle diameter of the conductive particles is preferably 1 μm or more and 18 μm or less from the viewpoint of dispersibility and conductivity. Insulating coating particles obtained by coating conductive particles with an insulating layer may be used, and conductive particles and insulating particles may be used in combination from the viewpoint of improving the insulation between adjacent electrodes.

  The blending ratio of the conductive particles is preferably 0.1 to 30.0 parts by volume with respect to 100 parts by volume of the adhesive component contained in the adhesive layer 22, and is 0.1 to 10 parts by volume. More preferably, it is 0 volume part or less. By making this mixture ratio 0.1 volume part or more, it can suppress that the connection resistance between the electrodes which oppose becomes high. On the other hand, it can suppress that the short circuit between adjacent electrodes arises because this compounding ratio shall be 30.0 volume parts or less. In addition, about the component contained in these adhesive bond layers 22, the compounding quantity, the compounding method, etc., it is possible to use the component, the compounding quantity, the compounding method, etc. which are described in international publication 2009/063827.

  The front and back surfaces of the adhesive tape 20 configured as described above are colored in a color represented by at least one of hue, saturation, and brightness. This color is not particularly limited, and can be, for example, gray, ocher, blue, or the like. For this reason, the color of the surface of the adhesive tape 20 on the substrate 21 side and the color of the surface on the adhesive layer 22 side are both the colors of the substrate 21, but when the adhesive layer 22 is colored, The color of the surface of the adhesive tape 20 on the side of the adhesive layer 22 is the color of the adhesive layer 22. The front and back colors of the adhesive tape 20 may be the same color or different colors.

  When the color of the front and back surfaces of the adhesive tape 20 is expressed by a color such as a colorant applied to the front and back surfaces of the adhesive tape 20, the colorant applied to the surface of the adhesive tape 20 becomes a colored layer. . This colored layer includes, for example, those formed as a pattern or a mark on the front and back surfaces of the adhesive tape 20 in addition to those coated uniformly on the entire front and back surfaces of the adhesive tape 20. As this pattern or mark, for example, a dot or a line can be used.

  FIG. 3 is a schematic cross-sectional view showing a terminal portion of the adhesive tape. As shown in FIG. 3, a tape-like end tape 40 is connected to the terminal portion of the adhesive tape 20. The end tape 40 indicates that the adhesive tape 20 has been completed, and is used for connection with the adhesive tape 20 wound on another new adhesive reel 10.

  The end tape 40 includes a base material 41 and a transparent adhesive layer 42 formed on one surface of the base material 41, and the base material 41 has a base material on the side facing the adhesive layer 42. A colored layer 43 colored in a color different from 41 is formed. For this reason, the colored layer comprised by the base material 41 is formed in the surface at the side of the base material 41 of the end tape 40, and the color of the base material 41 becomes the color of the surface at the side of the base material 41 of the end tape 40. Yes. Further, a colored layer composed of the adhesive layer 42 and the colored layer 43 is formed on the surface of the end tape 40 on the adhesive layer 42 side, and the color of the colored layer 43 is changed to that on the adhesive layer 42 side of the end tape 40. The color of the surface. When the adhesive layer 42 is colored, the color of the adhesive layer 42 is the color of the surface of the end tape 40 on the adhesive layer 42 side. These colored layers include, for example, those formed as patterns or marks on the front and back surfaces of the end tape 40 in addition to those in which the entire front and back surfaces of the end tape 40 are formed uniformly. The color of the base material 41, the adhesive layer 42, and the colored layer 43, that is, the color of the front and back surfaces of the end tape 40 is represented by at least one of hue, saturation, and brightness.

  The end tape 40 has a surface on the base 41 side facing a surface on the base 21 side of the adhesive tape 20, and a surface on the adhesive layer 42 side facing a surface on the adhesive layer 22 side of the adhesive tape 20. It is connected to the adhesive tape 20 so as to face. The base 21 side surface of the adjacent adhesive tape 20 and the base tape 41 side surface of the end tape 40 may be the same color or different colors. In order to make these surfaces have different colors, for example, the base material 41 may be colored in a color different from the color of the surface of the adhesive tape 20 on the base material 21 side. Further, the surface on the adhesive layer 22 side of the adjacent adhesive tape 20 and the surface on the adhesive layer 42 side of the end tape 40 may be the same color or different colors. In order to make these surfaces have different colors, for example, the colored layer 43 may be colored to a color different from the color of the surface of the adhesive tape 20 on the adhesive layer 22 side.

  As the base material 41, the same material as the base material 41 of the adhesive tape 20 can be used. The color of the substrate 41 is not particularly limited, but is preferably the color opposite to the colored layer 43 from the viewpoint of color discrimination with the colored layer 43, and may be white, for example.

  The color of the colored layer 43 is not particularly limited, but is preferably the opposite color of the base material 41 from the viewpoint of color discrimination with the base material 41. For example, when the base material 41 is white, the colored layer 43 43 is preferably black. Such a colored layer 43 can be formed by performing a printing process or the like on the surface of the substrate 41. The printing process can be performed by, for example, a printing process using a UV ink that is cured by irradiation with ultraviolet rays, a printing process using a thermosetting resin that is cured by heating, or the like. In the former printing process, the black colored layer 43 can be formed on the substrate 41 by applying black UV ink to the substrate 41 and then irradiating the UV ink with ultraviolet rays. In the latter printing process, a black colored layer 43 can be formed on the substrate 41 by applying a black thermosetting resin to the substrate 41 and then applying heat to the thermosetting resin.

  As the adhesive layer 42, in particular, if the adhesive layer 42 has such an adhesive force that the adhesive layer 42 does not peel from the base material 41 due to the tension generated when the adhesive tape 20 is wound around the adhesive tape reel 30. There is no restriction | limiting, For example, a thermoplastic adhesive, a thermosetting adhesive, a pressure sensitive adhesive etc. can be used. Specific examples include an epoxy resin system, an acrylic resin system, a silicone resin system, and a urethane resin system. Among them, it is preferable to use an acrylic resin system that starts curing at a low temperature.

  The length of the end tape 40 is such a length that the color detecting device of the connecting device described later can detect the color change between the adhesive tape 20 and the end tape 40 and can be connected to the lead tape 50. It is preferable that there is, for example, 0.05 m or more and 4.50 m or less.

  FIG. 4 is a schematic cross-sectional view showing the starting end of the adhesive tape. As shown in FIG. 4, a tape-shaped lead tape 50 is connected to the starting end portion of the adhesive tape 20. The lead tape 50 is for pulling out the adhesive tape 20 from the adhesive reel 10 and is connected to the end tape 40 connected to the adhesive tape 20 wound around the used adhesive reel 10. Is for. Note that an adhesive tape (not shown) having a length of about 3 cm is attached to the tip of the lead tape 50. And after winding up the adhesive tape 20 on the reel 30 for adhesive tapes and completing the adhesive reel 10 as a product, this adhesive tape is affixed on the side surface of the adhesive reel 10, and the adhesive tape 20 It prevents the winding state from collapsing.

  The lead tape 50 includes a base material 51 and a transparent adhesive layer 52 formed on one surface of the base material 51, and the base material 51 has a base material on the side facing the adhesive layer 52. A colored layer 53 colored in a color different from 51 is formed. For this reason, the colored layer comprised by the base material 51 is formed in the surface at the side of the base material 51 of the lead tape 50, and the color of the base material 51 is the color of the base material 51. Further, a colored layer composed of the adhesive layer 52 and the colored layer 53 is formed on the surface of the lead tape 50 on the adhesive layer 52 side, and the color of the colored layer 53 is changed to that on the adhesive layer 52 side of the lead tape 50. The color of the surface. When the adhesive layer 52 is colored, the color of the adhesive layer 52 is the color of the surface of the lead tape 50 on the adhesive layer 52 side. These colored layers include, for example, those formed as patterns and marks on the front and back surfaces of the lead tape 50 in addition to those in which the entire front and back surfaces of the lead tape 50 are formed uniformly. The colors of the base material 51, the adhesive layer 52, and the colored layer 53, that is, the colors of the front and back surfaces of the lead tape 50 are represented by at least one of hue, saturation, and brightness.

  The lead tape 50 has a surface on the base 51 side facing the surface on the adhesive layer 22 side of the adhesive tape 20 and a surface on the adhesive layer 52 side facing the surface on the base 21 side of the adhesive tape 20. It is connected to the adhesive tape 20 so as to face. The lead tape 50 is connected to the adhesive tape 20 in the reverse direction from the end tape 40. The surface of the adjacent adhesive tape 20 on the base 21 side and the surface of the lead tape 50 on the adhesive layer 52 side may be the same color or different colors. In order to make these surfaces have different colors, for example, the colored layer 53 may be colored in a color different from the color of the surface of the adhesive tape 20 on the substrate 21 side. Further, the surface on the adhesive layer 22 side of the adjacent adhesive tape 20 and the surface on the base material 51 side of the lead tape 50 may be the same color or different colors. In order to make these surfaces have different colors, for example, the base material 51 may be colored in a color different from the color of the surface of the adhesive tape 20 on the adhesive layer 22 side.

  As the base material 51, the same material as the base material 51 of the adhesive tape 20 can be used. The color of the substrate 51 is not particularly limited, but is preferably the color opposite to the colored layer 53 from the viewpoint of color discrimination with the colored layer 53, for example, white. Further, the base material 51 is preferably the same color as the color of the base material 41 of the end tape 40. For example, when the base material 41 of the end tape 40 is white, the base material 51 is also preferably white. .

  The color of the colored layer 53 is not particularly limited, but is preferably the opposite color of the substrate 51 from the viewpoint of color discrimination with the substrate 51. For example, when the substrate 51 is white, the colored layer 53 is preferably black. The colored layer 53 is preferably the same color as the colored layer 43 of the end tape 40. For example, when the colored layer 43 of the end tape 40 is black, the colored layer 53 is also preferably black. . Such a colored layer 53 can be formed by performing a printing process or the like on the surface of the substrate 51. The printing process can be performed by, for example, a printing process using a UV ink that is cured by irradiation with ultraviolet rays, a printing process using a thermosetting resin that is cured by heating, or the like.

  As the adhesive layer 52, in particular, if the adhesive layer 52 has such an adhesive force that the adhesive layer 52 does not peel from the base material 51 due to the tension generated when the adhesive tape 20 is wound around the adhesive tape reel 30. There is no restriction | limiting, For example, a thermoplastic adhesive, a thermosetting adhesive, a pressure sensitive adhesive etc. can be used. Specific examples include an epoxy resin system, an acrylic resin system, a silicone resin system, and a urethane resin system. Among them, it is preferable to use an acrylic resin system that starts curing at a low temperature.

  The length of the lead tape 50 is a length that can be connected to the end tape 40 while the color detecting device of the connecting device described later can detect a color change between the lead tape 50 and the adhesive tape 20. It is preferable that there is, for example, 0.05 m or more and 1.00 m or less.

  The tip of the adhesive tape 20 to which the lead tape 50 is connected is such that the adhesive layer 22 is formed shorter than the base 51 and the adhesive layer 22 is not peeled off from the base 51. It is preferable that the tip of the adhesive layer 22 is attached to the base material 51 with various adhesive tapes 70 or the like. Here, the lead tape 50 is connected only to the base material 21 of the adhesive tape 20.

  The connection between the adhesive tape 20 and the end tape 40 and the connection between the adhesive tape 20 and the lead tape 50 can be performed by various adhesive tapes 60 and the like. As a base material of the adhesive tape 60, for example, polyethylene, polypropylene, polyethylene terephthalate, polyvinyl chloride, non-woven fabric, or the like can be used. Moreover, as an adhesive of the adhesive tape 60, an acrylic type, polyvinyl alcohol, etc. can be used, for example.

  As shown in FIG. 1, an adhesive tape reel 30 includes a cylindrical core 31 around which the adhesive tape 20 is wound, and an adhesive wound around the core 31 connected to both ends of the core 31. And a pair of side plate portions 32 that support the side surface of the tape 20.

  The side plate portion 32 is an annular disk made of plastic, for example. The thickness of the side plate portion 32 is not particularly limited, but can be, for example, 0.5 mm or more and 5.0 mm or less, and in this case, preferably 0.9 mm or more and 3.0 mm or less, and 1.0 mm to More preferably, it is 2.0 mm or less. The outer diameter of the side plate portion 32 is appropriately set according to the length and thickness of the adhesive tape 20 wound around the winding core 31, that is, according to the diameter of the wound body of the adhesive tape 20 wound around the winding core 31. For example, it can be set to 100 mm or more and 300 mm or less.

  In the adhesive reel 10, the adhesive tape 20 is wound around the core 31 of the adhesive tape reel 30.

  For winding the adhesive tape 20 around the winding core 31, first, the end tape 40 is wound around the winding core 31, and then the adhesive tape 20 is wound around the winding core 31, and finally the lead tape 50 is wound around the winding core. Take up around 31. And the winding state of the adhesive tape 20 is hold | maintained by sticking the edge part of the lead tape 50 on the outer side of the side-plate part 32. FIG.

  In this case, the adhesive tape 20 may be wound around the core 31 so that the base material 21 of the adhesive tape 20 is disposed on the core 31 side, and the adhesive layer 22 of the adhesive tape 20 is the core 31. The adhesive tape 20 may be wound around the core 31 so as to be disposed on the side. When the adhesive tape 20 is wound around the core 31 so that the base material 21 of the adhesive tape 20 is disposed on the core 31 side, the base material 41 of the end tape 40 is disposed on the core 31 side. The adhesive layer 52 of the lead tape 50 is disposed on the core 31 side. On the other hand, when the adhesive tape 20 is wound around the core 31 so that the adhesive layer 22 of the adhesive tape 20 is disposed on the core 31 side, the adhesive layer 52 of the end tape 40 is positioned on the core 31 side. As well as being disposed, the base material 51 of the lead tape 50 is disposed on the core 31 side.

  Here, with reference to FIG. 5, an adhesive device that presses the adhesive layer 22 of the adhesive tape 20 onto a circuit board or the like will be described. FIG. 5 is a schematic configuration diagram of the bonding apparatus.

  As shown in FIG. 5, the bonding apparatus 100 detects the color of the adhesive reel 10 mounted on the feeding side of the bonding apparatus 100 and the surface or the back surface of the adhesive tape 20 drawn from the adhesive reel 10. A detection device 110, a heating and pressing head 120 that presses the adhesive tape 20 drawn from the adhesive reel 10 to heat and press the adhesive layer 22 onto a circuit board, etc., and a receiving side of the bonding device 100 are attached. A take-up reel 130 for winding the used base material 21; a crimping head 140 for crimping the end tape 40 connected to the used adhesive tape 20 and the lead tape 50 connected to the new adhesive tape 20; , And guide pins 150 for bending and guiding the adhesive tape 20 drawn from the adhesive reel 10.

  The color detection device 110 detects the end of the adhesive tape 20 based on the detected color change. That is, the color detection device 110 has finished the adhesive tape 20 being used when the detected color changes from the color of the front or back surface of the adhesive tape 20 to the color of the front or back surface of the end tape 40. Judge.

  As with the adhesive tape reel 30, the take-up reel 130 includes a cylindrical core 131 around which the base material 21 is taken up, and a base material that is connected to both ends of the core 131 and wound around the core 131. And a pair of side plate portions 132 that support the side surfaces of 21. The side plate portion 132 is more than the side plate portion 32 of the adhesive tape reel 30 in order to allow the base material 21 of the adhesive tape 20 wound around the plurality of adhesive reels 10 to be wound. The diameter is long.

  The crimping head 140 is in a state where the adhesive layer 42 of the end tape 40 connected to the used adhesive tape 20 and the adhesive layer 52 of the lead tape 50 connected to the new adhesive tape 20 are overlapped. By bonding the end tape 40 and the lead tape 50, the used adhesive tape 20 and the new adhesive tape 20 are connected. In this bonding apparatus, the heating / pressurizing head 120 and the pressure-bonding head 140 are provided independently, but the bonding apparatus may be simplified by integrating them.

  Next, a method for replacing the adhesive reel 10 will be described.

  First, in the bonding apparatus 100, the adhesive tape 20 is pulled out from the adhesive reel 10, and the adhesive layer 22 of the adhesive tape 20 is heated and pressed onto the circuit board or the like by the heating and pressing head 120 while being guided by the guide pins 150. Then, the remaining base material 21 is taken up on the take-up reel 130. Then, when the adhesive tape 20 is finished, the color detection device 110 detects the difference between the color of the front or back surface of the adhesive tape 20 and the color of the front or back surface of the end tape 40, thereby Auto detect end.

  When the adhesive tape 20 is completed, the adhesive reel 10 mounted on the bonding apparatus 100 is removed, a new adhesive reel 10 is mounted on the bonding apparatus 100, and the lead tape 50 is pulled out from the mounted adhesive reel 10. Then, the end tape 40 connected to the used adhesive tape 20 wound around the take-up reel 130 and the lead tape 50 drawn out from the newly mounted adhesive reel 10 are pressure-bonded by the pressure-bonding head 140. Then, the process of heating and pressing the adhesive layer 22 of the adhesive tape 20 to the circuit board or the like with the heating and pressing head 120 is resumed.

  Here, in order to crimp the end tape 40 and the lead tape 50 by the crimping head 140, the operator visually identifies the front and back surfaces of the end tape 40 and the lead tape 50, and the adhesive layer 42 of the end tape 40. And the adhesive layer 52 of the lead tape 50 are overlapped.

  In the present embodiment, since the front and back colors of the end tape 40 and the lead tape 50 are different, the front and back surfaces of the end tape 40 and the lead tape 50 can be easily identified visually. Therefore, when the adhesive reel 10 is replaced, the adhesive layer 42 of the end tape 40 connected to the used adhesive tape 20 and the adhesive layer of the lead tape 50 connected to the new adhesive tape 20 are used. 52 can be easily and reliably bonded to each other. Thereby, the connection mistake which connects the used adhesive tape 20 and the new adhesive tape 20 upside down can be prevented.

  In addition, since the end tape 40 and the lead tape 50 are connected to the adhesive tape 20 in the reverse direction, the adhesive layer 42 of the end tape 40 and the adhesive layer 52 of the lead tape 50 are overlapped. By pressing, the front and back surfaces of the used adhesive tape 20 and the new adhesive tape 20 can be matched.

  Moreover, the front and back surfaces of the end tape 40 and the lead tape 50 are represented by at least one of hue, saturation, and brightness so that the front and back surfaces of the end tape 40 and the lead tape 50 can be easily visually identified. it can.

(Second Embodiment)
Next, a second embodiment will be described. The adhesive reel according to the second embodiment is basically the same as the adhesive reel according to the first embodiment, and only the layer structure of the adhesive tape is different from the adhesive reel according to the first embodiment. To do. For this reason, below, only the part which is different from the adhesive reel according to the first embodiment will be described, and the description of the same part as the adhesive reel according to the first embodiment will be omitted.

  FIG. 6 is a schematic cross-sectional view showing the layer structure of the adhesive tape. FIG. 7 is a schematic cross-sectional view showing a terminal portion of the adhesive tape. FIG. 8 is a schematic cross-sectional view showing the starting end of the adhesive tape. As shown in FIGS. 6 to 8, the adhesive tape 80 of the adhesive reel according to the second embodiment is bonded to the base material 21, the adhesive layer 22 formed on one surface of the base material 21, and the adhesive tape 80. The agent layer 22 has a three-layer structure including a tape-like cover tape 83 laminated on the surface opposite to the surface on which the base material 21 is provided. The cover tape 83 is a film-like tape that protects the adhesive layer 22, and the material thereof is not particularly limited.

  In the adhesive reel according to the second embodiment, the adhesive tape 80 may be wound around the core 31 so that the base material 21 of the adhesive tape 80 is disposed on the core 31 side. The adhesive tape 80 may be wound around the core 31 so that the cover tape 83 of the tape 80 is disposed on the core 31 side. When the adhesive tape 80 is wound around the core 31 so that the base material 21 of the adhesive tape 80 is disposed on the core 31 side, the base material 41 of the end tape 40 is disposed on the core 31 side. The adhesive layer 52 of the lead tape 50 is disposed on the core 31 side. On the other hand, when the adhesive tape 80 is wound around the core 31 so that the cover tape 83 of the adhesive tape 80 is disposed on the core 31 side, the adhesive layer 42 of the end tape 40 is disposed on the core 31 side. Then, the base material 51 of the lead tape 50 is disposed on the core 31 side.

  Thus, by laminating the cover tape 83 on the surface of the adhesive layer 22, the base material 21 is bonded between the adhesive tape 80 wound on the inner side and the adhesive tape 80 wound on the outer side. Since the adhesive layer 22 can be separated, the adhesive tape 80 can be satisfactorily pulled out from the adhesive reel 10 without peeling off the adhesive layer 22.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment. For example, in the above-described embodiment, the front and back colors of the end tape 40 and the front and back surfaces of the lead tape 50 are opposite to each other. The color of 50 front and back surfaces may be completely different.

  Further, the end tape 40 has a surface on the adhesive layer 42 side facing a surface on the base material 21 side of the adhesive tape 20 and a surface on the base material 41 side facing a surface on the adhesive layer 22 side of the adhesive tape 20. The lead tape 50 is connected to the adhesive tape 20 so as to face, and the surface on the adhesive layer 52 side of the lead tape 50 faces the surface on the adhesive layer 22 side of the adhesive tape 20, and the surface on the base 51 side is adhesive. It may be connected to the adhesive tape 20 so as to face the surface of the tape 20 on the substrate 21 side.

  Next, examples of the present invention will be described, but the present invention is not limited to the following examples.

(Preparation 1)
50 g of phenoxy resin synthesized from bisphenol A type epoxy resin (trade name “YL-980”, manufactured by Mitsubishi Chemical Corporation) and 9,9′-bis (4-hydroxyphenyl) fluorene was added to toluene with a mass ratio of 50:50 ( It was dissolved in a mixed solvent of boiling point 110.6 ° C., SP value 8.90) and ethyl acetate (boiling point 77.1 ° C., SP value 9.10) to prepare a solution having a solid content of 40% by mass. In this solution, bisphenol A type liquid epoxy resin (epoxy equivalent: 185, manufactured by Mitsubishi Chemical Corporation, trade name “YL-980”) is mixed with a phenoxy resin: bisphenol A type liquid epoxy resin in a mass ratio of 50:50. It mix | blended so that it might become. In this blended liquid, the conductive particles are blended and dispersed in an amount of 15% by volume with respect to the total volume of the resin component (total volume of the phenoxy resin and bisphenol A type epoxy resin), and further, an aromatic sulfonium salt is added as a latent curing agent. 0.0g was added and the adhesive composition containing liquid 1 was prepared. In addition, as conductive particles, particles obtained by electroless nickel plating on a plastic core having a particle size of 3.0 μm and palladium plating on the outermost layer were used. As aromatic sulfonium salts, trade names manufactured by Sanshin Chemical Industry Co., Ltd. “Sun-Aid SI-60” was used.

  The obtained adhesive composition-containing liquid 1 was subjected to a roll coater on a polyethylene terephthalate (PET) film (the PET film used here is referred to as “PET film 1” hereinafter) having a substrate thickness of 50 μm and having one surface treated. It applied by.

  Subsequently, it dried in air | atmosphere at 70 degreeC for 5 minute (s), and the resin film 1 with a thickness of 8 micrometers supported on the PET film 1 was obtained.

  Next, 60 g of bisphenol F-type phenoxy resin (manufactured by Nippon Steel & Sumikin Chemical Co., Ltd., trade name “FX-316”), toluene with a mass ratio of 50:50 (boiling point 110.6 ° C., SP value 8.90) and ethyl acetate It was dissolved in a mixed solvent having a boiling point of 77.1 ° C. and an SP value of 9.10 to prepare a solution having a solid content of 60% by mass. In this solution, a bisphenol A type liquid epoxy resin (epoxy equivalent: 185, manufactured by Mitsubishi Chemical Co., Ltd., trade name “YL-980”) is mixed with bisphenol F type phenoxy resin: bisphenol A type liquid epoxy resin in a solid content mass ratio. It mix | blended so that it might become 60:40. To this blended liquid, 4.8 g of an aromatic sulfonium salt was further added as a latent curing agent to prepare an adhesive composition-containing liquid 2. In addition, as an aromatic sulfonium salt, the product name "Sun-Aid SI-60" by Sanshin Chemical Industry Co., Ltd. was used.

  The obtained adhesive composition-containing liquid 2 was subjected to a roll coater on a polyethylene terephthalate (PET) film (hereinafter referred to as “PET film 2”) having a substrate thickness of 50 μm and having one surface treated. It applied by.

  Subsequently, it dried in air | atmosphere at 70 degreeC for 5 minute (s), and the resin film 2 with a thickness of 12 micrometers supported on PET film 2 was obtained.

  The obtained resin film 1 and the resin film 2 were laminated using a laminator to obtain an adhesive tape having a two-layer structure (a conductive particle-containing layer and a conductive particle non-containing layer).

  On the other hand, a core having an opening (shaft hole) corresponding to the shaft hole at the center was prepared. The width of the winding core was 2.5 mm, the inner diameter (diameter of the opening (shaft hole)) was 40.0 mm, and the outer diameter of the winding core was 65.0 mm. Two annular side plates made of plastic having a thickness of 2.0 mm, an inner diameter of 40.0 mm, and an outer diameter of 125.0 mm were prepared. Then, both ends of the core were fitted into the openings of the two side plates, respectively, to obtain an adhesive tape reel.

  One side of the white PET film was subjected to a printing process (UV curing process) using UV ink containing a black pigment, and processed into a PET film having two colors on the front and back of the white side and the black side (processing here) The PET film thus obtained is hereinafter referred to as “double-sided PET film”). Next, an acrylic resin was applied as an adhesive layer on the black side of the double-sided PET film. Then, it dried for 5 minutes at 70 degreeC in air | atmosphere, and obtained the double-sided PET film with resin whose thickness of the adhesive bond layer supported on the double-sided PET film is 20 micrometers.

Example 1
A two-sided PET film with resin as an end tape was wound around the core of the reel for the adhesive tape by a length of 3 m while cutting into a strip shape so that the black surface was arranged on the core side. Subsequently, the adhesive layer of the adhesive tape cut into strips was placed on the core side so that the adhesive tape and the two-sided PET film with resin were not overlapped, and the front and back surfaces were attached with an adhesive tape. . Then, the adhesive tape was wound around a winding core by 50 m while being further cut into strips. Subsequently, the two-sided PET film with resin cut into a strip shape as a lead tape is arranged so that the white side of the PET-sided PET film with resin is not overlapped with the white side of the PET film with resin, and the front and back surfaces are adhesive tape. Pasted with. Then, the double-sided PET film with resin was further wound into a strip shape while being cut into a strip shape to produce an adhesive reel A. That is, in the adhesive reel C, the surface color (white) and the back surface color (black) of the end tape were made different, and the surface color (black) and the back surface color (white) of the lead tape were made different. The end tape surface color (white) and the lead tape surface color (black) were made different, and the end tape back surface color (black) and the lead tape back surface color (white) were made different. Here, the “front surface” is the surface facing the opposite side of the core of the end tape or lead tape wound on the adhesive reel, and the “back surface” is the end tape or lead wound on the adhesive reel. The surface faces the tape core side.

(Example 2)
A two-sided PET film with resin as an end tape was wound around the core of the reel for the adhesive tape by a length of 3 m while cutting into a strip shape so that the black surface was arranged on the core side. Subsequently, the adhesive layer of the adhesive tape cut into strips was placed on the core side so that the adhesive tape and the two-sided PET film with resin were not overlapped, and the front and back surfaces were attached with an adhesive tape. . Then, the adhesive tape was wound around a winding core by 50 m while being further cut into strips. Subsequently, the double-sided PET film with resin cut into a strip shape as a lead tape is arranged so that the double-sided PET film with resin and the adhesive tape do not overlap with the black side of the PET-sided PET film with resin, and the front and back surfaces are adhered. Pasted with tape. Then, the two-sided PET film with resin was further wound into a strip shape while being cut into a strip shape, to produce an adhesive reel B. That is, in the adhesive reel C, the surface color (white) and the back surface color (black) of the end tape were made different, and the surface color (white) and the back surface color (black) of the lead tape were made different. The end tape surface color (white) and the lead tape surface color (white) were the same, and the end tape back surface color (black) and the lead tape back surface color (black) were the same.

(Comparative Example 1)
A two-sided PET film with resin as an end tape was wound around the core of the reel for the adhesive tape by a length of 3 m while cutting into a strip shape so that the black surface was arranged on the core side. Subsequently, the adhesive layer of the adhesive tape cut into strips was placed on the core side so that the adhesive tape and the two-sided PET film with resin were not overlapped, and the front and back surfaces were attached with an adhesive tape. . Then, the adhesive tape was wound around a core of 50 m while further cutting the adhesive tape into a strip shape to produce an adhesive reel C. That is, for the adhesive reel C, end tapes having different front and back colors were connected to the adhesive tape, but the lead tape was not connected.

(Comparative Example 2)
The adhesive tape was wound on the core of the reel for the adhesive tape by 50 m while cutting it into a strip shape so that the adhesive layer was arranged on the core side, and an adhesive reel D was produced. That is, the adhesive reel D did not connect any of the end tape and the lead tape to the adhesive tape.

表１に示すように、比較例１及び２では、表裏面を識別し難かったが、実施例１及び実施例２では、表裏面を容易に識別できた。このような結果から、接着剤テープの終端部及び始端部にエンドテープ及びリードテープを接続し、更に、エンドテープ及びリードテープの表裏面の色を変えることで、これらの表裏面を容易に識別できることが分かった。 (Identity test)
Two sets of adhesive reels obtained in Example 1, Example 2, Comparative Example 1 and Comparative Example 2 were prepared, and the front and back surfaces of the end portion of one adhesive tape and the front and back surfaces of the start end portion of the other adhesive tape Were identified visually. Those that could easily identify these front and back surfaces were designated as A, and those that could identify these front and back surfaces but were difficult to identify were designated as B. The results are shown in Table 1.

As shown in Table 1, in Comparative Examples 1 and 2, it was difficult to identify the front and back surfaces, but in Example 1 and Example 2, the front and back surfaces could be easily identified. From these results, the front and back surfaces of the adhesive tape can be easily identified by connecting the end tape and lead tape to the end and the leading end of the adhesive tape and changing the color of the front and back surfaces of the end tape and lead tape. I understood that I could do it.

表２に示すように、実施例２、比較例１及び比較例２では、巻き取り途中で剥離及び切断したが、実施例１では、問題なく巻き取れた。なお、実施例２、比較例１及び比較例２において剥離及び切断した場所は、ガイドピンを通過して搬送方向が変わるところであった。 (Adhesion test)
Bonding the used adhesive tape to the new adhesive tape by thermocompressing the end of the used adhesive tape and the beginning of the new adhesive tape and winding the adhesive tape on the take-up reel A force test was performed. More specifically, the adhesive reel obtained in Example 1, Example 2, Comparative Example 1 and Comparative Example 2 is mounted on the feeding side of the bonding apparatus, and the empty take-up reel is mounted on the receiving side of the bonding apparatus. Then, the adhesive tape was pulled out from the attached adhesive reel, and the adhesive layer was pressure-bonded to a circuit board or the like, and then the remaining PET film was taken up on an empty take-up reel. When the adhesive tape is finished, a new adhesive reel is mounted on the feeding side of the bonding apparatus, and the end of the used adhesive tape and the start of the new adhesive tape are overlapped, 70 ° C., 2 seconds. The pressure bonding was performed under the conditions of 1 MPa, 90 ° C., 2 seconds, and 1 MPa. In the test, the adhesive tape was wound up on a take-up reel by 3 turns for each. A sample that could be wound up without any problem was designated as A, and a sample that could not be wound up due to peeling or cutting was designated as B. The results are shown in Table 2.

As shown in Table 2, in Example 2, Comparative Example 1 and Comparative Example 2, peeling and cutting were performed in the middle of winding, but in Example 1, it was wound without any problem. In Example 2, Comparative Example 1 and Comparative Example 2, the peeled and cut places were where the conveying direction changed after passing through the guide pins.

表３及び表４に示すように、実施例１と実施例２、比較例１及び比較例２との間に差を確認できた。何れの試験も、実施例２、比較例１及び比較例２に対して実施例１が優れる結果となった。このような結果から、エンドテープとリードテープとの互いに反対側となる面に接着剤層を形成することで、接続強度が高まることが分かった。 Further, the adhesive tape drawn out from the adhesive reel obtained in Example 1, Example 2, Comparative Example 1 and Comparative Example 2 was pressure-bonded in the same manner as described above, and the end of the used adhesive tape and a new adhesive were used. The adhesion with the starting end of the tape was measured. The adhesion force is measured by pulling so as to pull in parallel from both ends (adhesion strength test in the pulling direction), or by fixing one side to a flat surface and flipping the other 180 ° and peeling back (180 ° reversal direction). The adhesion strength test). Three tests were performed for each, and the average value of the measurement results was calculated. The results of average values in the adhesion test in the tensile direction are shown in Table 3, and the results of average values in the adhesion test in the 180 ° reversal direction are shown in Table 4.

As shown in Table 3 and Table 4, differences could be confirmed between Example 1 and Example 2, Comparative Example 1 and Comparative Example 2. In any test, Example 1 was superior to Example 2, Comparative Example 1 and Comparative Example 2. From these results, it was found that the connection strength is increased by forming the adhesive layer on the opposite surfaces of the end tape and the lead tape.

  In Example 1, in the adhesion strength test in the 180 ° reversal direction, peeling and cutting were performed so that portions other than the adhesion surface could be peeled off, but the adhesion portion between the end tape and the lead tape as the adhesion surface was not peeled off at all. It was. This is the result of peeling and cutting at the weakest part that can not withstand stress due to a steep angle of 180 °, and the close contact part between the end tape and the lead tape is firmly attached, and the quality that can withstand practical use Consider that.

DESCRIPTION OF SYMBOLS 10 ... Adhesive reel, 20 ... Adhesive tape, 21 ... Base material, 22 ... Adhesive layer, 30 ... Reel for adhesive tapes, 31 ... Core, 32 ... Side plate part, 40 ... End tape, 41 ... Base material 42 ... Adhesive layer, 43 ... Colored layer, 50 ... Lead tape, 51 ... Base material, 52 ... Adhesive layer, 53 ... Colored layer, 60 ... Adhesive tape, 70 ... Adhesive tape, 80 ... Adhesive tape, 83 DESCRIPTION OF SYMBOLS ... Cover tape, 100 ... Adhesive device, 110 ... Color detection device, 120 ... Heating and pressing head, 130 ... Winding reel, 131 ... Core, 132 ... Side plate part, 140 ... Crimp head, 150 ... Guide pin.

Claims (12)

An adhesive tape having a tape-shaped substrate and an adhesive layer formed on one surface of the substrate;
A core around which the adhesive tape is wound;
An adhesive reel with
A tape-like end tape is connected to the end of the adhesive tape,
A tape-shaped lead tape is connected to the start end of the adhesive tape,
The color of the front and back of the end tape is different,
The lead tape has different front and back colors,
Adhesive reel. The colors of the front and back surfaces of the end tape and the lead tape are represented by at least one of hue, saturation, and brightness.
The adhesive reel according to claim 1. An adhesive tape having a tape-shaped substrate and an adhesive layer formed on one surface of the substrate;
A core around which the adhesive tape is wound;
An adhesive reel with
A tape-like end tape is connected to the end of the adhesive tape,
A tape-shaped lead tape is connected to the start end of the adhesive tape,
Colored layers having different colors are formed on the front and back surfaces of the end tape,
Colored layers having different colors are formed on the front and back surfaces of the lead tape,
Adhesive reel. The color of the colored layer is represented by at least one of hue, saturation, and brightness.
The adhesive reel according to claim 3. The adhesive tape is wound around the core so that the substrate is disposed on the core side,
The adhesive reel as described in any one of Claims 1-4. The adhesive tape is wound around the core so that the adhesive layer is disposed on the core side,
The adhesive reel as described in any one of Claims 1-4. A tape-shaped cover tape is laminated on the surface of the adhesive layer,
The adhesive tape is wound around the core so that the cover tape is disposed on the core side,
The adhesive reel as described in any one of Claims 1-4. A tape-shaped cover tape is laminated on the surface of the adhesive layer,
The adhesive tape is wound around the core so that the substrate is disposed on the core side,
The adhesive reel as described in any one of Claims 1-4. The color of the core side of the adhesive tape is different from the color of the core side of the end tape,
The adhesive reel as described in any one of Claims 1-8. The color of the adhesive tape opposite to the core and the color of the end tape opposite to the core are different.
The adhesive reel as described in any one of Claims 1-9. An adhesive layer was formed on the surface of the end tape on the core side and on the surface of the lead tape opposite to the core.
The adhesive reel as described in any one of Claims 1-10. An adhesive layer was formed on the surface of the end tape opposite to the core and the surface of the lead tape on the core side,
The adhesive reel as described in any one of Claims 1-10.

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