JPWO2012091061A1 - Desiccant container and adhesive tape reel - Google Patents

Abstract

The desiccant container 1 of the present invention includes a winding core 22 around which the adhesive tape T is wound, and a pair of side plates 23 and 24 provided with the winding core 22 interposed therebetween, and winds or feeds out the adhesive tape T. A desiccant container 1 used in an adhesive tape reel 21 provided with a shaft hole 25 through which a rotating shaft of the apparatus is provided, and having a shape that can be accommodated in the shaft hole 25 and having a hollow portion in which the desiccant K is accommodated. And a collar portion 3 provided on the trunk portion 2 and abutting against an outer surface of the side plate when the trunk portion 2 is disposed in the shaft hole 25. With this configuration, even when the desiccant container 1 is set on the adhesive tape reel 21 in which the distance between the side plates 23 and 24 is narrow, the adhesive tape reel 21 can be clearly stored in the packaging bag. .

Description

  The present invention relates to a desiccant container and an adhesive tape reel.

  For example, an anisotropic conductive tape is known as an adhesive tape used for connecting members to be connected having a large number of electrodes and fixing a lead frame. In anisotropic conductive tape, 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, or a flexible printed board, the opposing electrodes are made conductive while the adjacent electrodes are connected to each other. The insulation state can be maintained. In such an adhesive tape, for example, an adhesive layer containing an adhesive component containing a thermosetting resin and conductive particles blended as necessary is formed on a substrate such as a polyethylene terephthalate film (PET). Thus, it is produced by cutting a sheet-shaped raw material into a long shape with a width according to the application.

  The adhesive tape as described above is stored, transported, and used in a state of being wound around an adhesive tape reel including, for example, a winding core and a pair of side plates provided across the winding core. Conventionally, in an adhesive tape reel, a desiccant is contained in a bag containing the adhesive tape reel in order to suppress the so-called edge fusion phenomenon in which the resin composition of the adhesive tape protrudes to the outside in the wound body of the adhesive tape wound around the core. The method etc. which enclosed was adopted. For example, in Patent Document 1, a bag-shaped sheet containing a desiccant is used, and in Patent Document 2, a dehumidifying sheet is disposed at the end of a roll-shaped material obtained by winding a laminate film around a core. doing.

JP 2001-159814 A JP 2002-37379 A

  Incidentally, some of the above-mentioned adhesive tapes have a narrow width of about several mm. In such an adhesive tape reel on which the adhesive tape is wound, the interval between the side plates is narrowed according to the width of the adhesive tape. Therefore, when applying a conventional desiccant accommodation method, the desiccant largely protrudes from the adhesive tape reel, and it is difficult to cleanly accommodate the adhesive tape reel and the desiccant in the bag.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a desiccant container that can be set on an adhesive tape reel in a state where protrusion is suppressed.

  In order to solve the above problems, the desiccant container of the present invention includes a winding core around which the adhesive tape is wound, and a pair of side plates provided with the winding core interposed therebetween, and a device for winding or feeding the adhesive tape. A desiccant container for use in an adhesive tape reel provided with a shaft hole through which the rotation shaft passes, and a body part having a hollow part in which the desiccant is accommodated, and having a shape that fits in the shaft hole; And a flange portion that comes into contact with the outer surface of the side plate when the body portion is disposed in the shaft hole.

  In this desiccant container, when the drum portion in which the desiccant is accommodated is disposed in the shaft hole of the adhesive tape reel, the flange portion provided on the drum portion contacts the outer surface of the side plate of the adhesive tape reel. It comes into contact, and the collar portion is hooked on the outer surface of the side plate, so that the body portion can be held in a state of being accommodated in the shaft hole of the reel for adhesive tape. At this time, since only the flange portion along the outer surface of the side plate is located outside the reel for the adhesive tape, the protrusion of the desiccant container can be suppressed. Therefore, even when this desiccant container is set on an adhesive tape reel with a narrow space between the side plates, the adhesive tape reel can be clearly stored in the packaging bag.

  Moreover, it is preferable that the trunk | drum has comprised the cross-sectional circular shape. In this case, the body can be more easily fitted into the shaft hole.

  Moreover, it is preferable that the collar part is provided in the annular | circular shape over the perimeter of the trunk | drum in the one end side of a trunk | drum. In this case, since the collar part is firmly hooked on the outer surface of the side plate, the body part can be held more stably in the shaft hole.

  Moreover, it is preferable that the collar part protrudes from a part of trunk | drum in the one end side of a trunk | drum. In this case, since the shape of the collar part can be simplified, the cost of the desiccant container can be reduced.

  Moreover, it is preferable that the wall part on the other end side of the body part is provided with a plurality of holes communicating with the hollow part. In this case, a suction port and a discharge port are formed, and it can be expected to exhibit an effective drying ability.

  Moreover, it is preferable that a hole becomes narrow as it goes inside from the outer side of a wall part. In this case, it can be expected to prevent contamination of the product due to the desiccant component spilling out from the inside.

  Moreover, it can be set as the reel for adhesive tapes which sets said desiccant container to a shaft hole.

  According to the present invention, the desiccant container can be set on the reel for adhesive tape in a state in which the protrusion is suppressed.

It is a perspective view which shows the desiccant container which concerns on one Embodiment of this invention, and the reel for adhesive tapes which applies this. It is a figure which shows the cross section along the II-II line | wire of FIG. It is a figure which shows an example of the adhesive tape wound around the reel for adhesive tapes. It is an expansion perspective view of the desiccant container shown in FIG. It is a side view of the desiccant container shown in FIG. It is sectional drawing along the VI-VI line of FIG. It is a figure which shows the packing state of the reel for adhesive tapes which set the desiccant container. It is an expansion perspective view which shows the desiccant container which concerns on a modification. It is an expansion perspective view which shows the desiccant container which concerns on another modification.

  Hereinafter, preferred embodiments of a desiccant container according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing a desiccant container and an adhesive tape reel to which the desiccant container according to one embodiment of the present invention is applied. FIG. 2 is a view showing a cross section taken along line II-II in FIG.

  As shown in FIGS. 1 and 2, the desiccant container 1 is used for an adhesive tape reel 21. The reel 21 for adhesive tape is disposed so as to face the first side plate 23 with the winding core 22 sandwiched between the first side plate 23 around which the adhesive tape T such as anisotropic conductive tape is wound. A second side plate 24. This reel 21 for adhesive tape is used when manufacturing, supplying, and storing the adhesive tape T.

  First, the adhesive tape T will be described. The adhesive tape T is used, for example, as a connection material that performs electrical connection and mechanical fixation so as to keep the conductive state between the opposing electrodes and to keep the insulation between adjacent electrodes. The length of the adhesive tape T is usually about 50 m to 1000 m, and is 300 m or more in this embodiment. The width of the adhesive tape T is 0.5 mm to 10 mm, preferably 0.5 mm to 3.0 mm, more preferably 0.5 mm to 2.0 mm. The thickness of the adhesive tape T is 5 μm to 100 μm, preferably 10 μm to 40 μm, more preferably 10 μm to 20 μm.

  For example, as shown in FIG. 3, the adhesive tape T includes a base material 91 and an adhesive layer 92 provided on the base material 91. The adhesive tape T may be further provided with various films on the adhesive layer 92. The base material 91 used for the adhesive tape T is, for example, stretched polypropylene (OPP), polyethylene terephthalate (PET), polyethylene naphthalate, polyethylene isophthalate, polybutylene terephthalate, polyolefin, from the viewpoint of strength and adhesive releasability. Various tapes made of polyacetate, polycarbonate, polyphenylene sulfide, polyamide, ethylene / vinyl acetate copolymer, polyvinyl chloride, polyvinylidene chloride, synthetic rubber, liquid crystal polymer, and the like can be used. But the material which comprises a base material is not limited to these. Moreover, you may use as the base material 91 what the mold release process was performed to the contact surface etc. with an adhesive bond layer. Examples of mold release agents include olefin-based mold release agents, ethylene glycol montanate esters, carnauba wax, petroleum-based waxes and other low melting point waxes, low molecular weight fluororesins, silicone-based or fluorosurfactants, oils, waxes, resins, A polyester-modified silicone resin or the like is used, and a silicone resin is particularly common.

  The adhesive layer 92 used for the adhesive tape T generally includes a resin such as a thermoplastic resin, a thermosetting resin, or a mixed system (mixed resin) of a thermoplastic resin and a thermosetting resin. Typical examples of such resins include the following. Examples of the thermoplastic resin include styrene resin and polyester resin, and examples of the thermosetting resin include epoxy resin, acrylic resin, and silicone resin.

  The adhesive layer 92 is made of an adhesive composition including, for example, an adhesive component and conductive particles contained as necessary. As the adhesive component, for example, a material showing curability by heat or light can be widely applied. The use of a crosslinkable material is preferred because of excellent heat resistance and moisture resistance after connection. 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. A radical curing adhesive composition as described in International Publication No. 2009/063827 can also be used. Epoxy adhesives are, for example, high molecular weight epoxy, solid epoxy or liquid epoxy, or those mainly composed of 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.

  Examples of the conductive particles include particles of metals such as Au, Ag, Pt, Ni, Cu, W, Sb, Sn, solder, and carbon. 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 to 18 μm 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 parts by volume and more preferably 0.1 to 10 parts by volume with respect to 100 parts by volume of the adhesive component contained in the adhesive layer 92. . If the blending ratio is less than 0.1 part by volume, the connection resistance between the opposing electrodes tends to be high, and if it exceeds 30 parts by volume, a short circuit between adjacent electrodes tends to occur. In addition, about the component contained in these adhesive bond layers 92, 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.

  Next, the configuration of the first side plate 23 and the second side plate 24 of the adhesive tape reel 21 will be described. As shown in FIG. 1, the first side plate 23 is a disc made of plastic, for example. The thickness of the first side plate 23 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 outer diameter of the first side plate 23 is appropriately set according to the length of the adhesive tape T to be wound (the diameter of the wound body of the adhesive tape T), and is, for example, 100 mm to 500 mm, more preferably 125 mm to 250 mm. In addition, an opening 40 having a circular cross section is provided in the central portion of the first side plate 23.

  The winding core 22 is a portion around which the adhesive tape T is wound. The winding core 22 is made of, for example, plastic and has an annular shape having a thickness similar to the width of the adhesive tape T. The outer diameter of the core 22 is constant regardless of the type of the adhesive tape T, for example. In the present embodiment, the winding core 22 is fixed to the inner side surface 23 a of the first side plate 23 so as to surround the opening 40 of the first side plate 23.

  The cylindrical member 30 is fitted in the opening 40 of the first side plate 23. The cylindrical member 30 is made of, for example, plastic, like the core 22. The cylindrical member 30 has substantially the same thickness (for example, 4.5 mm to 11 mm) as the sum of the thickness of the first side plate 23, the thickness of the second side plate 24, and the thickness of the winding core 22. ing. Thus, one end side of the cylindrical member 30 fitted into the opening 40 of the first side plate 23 becomes a protruding portion that protrudes from the side surface of the core 22 with a protruding amount similar to the thickness of the second side plate 24. ing. Further, a shaft hole 25 is provided in the central portion of the adhesive tape reel 21 and in the central portion of the cylindrical member 30. The shaft hole 25 is a portion into which a rotating shaft of a winding device or a feeding device (not shown) is inserted. When the rotating shaft is driven in a state where the rotating shaft of the winding device or the feeding device is inserted into the shaft hole 25, the adhesive tape reel 21 rotates without idling. As shown in FIG. 1, the shaft hole 25 has a shape like a keyhole as a whole by a circular hole portion 25 a arranged at the center and a long hole portion 25 b protruding from a part of the hole portion 25 a. Yes. The inner diameter of the hole 25a is, for example, 15 mm to 30 mm.

  Similar to the first side plate 23, the second side plate 24 is a disc made of plastic, for example. The thickness of the second side plate 24 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 outer diameter of the second side plate 24 is appropriately set according to the length of the adhesive tape T to be wound (the diameter of the wound body of the adhesive tape T), for example, 100 mm to 500 mm, more preferably 125 mm to 250 mm. Yes. In the present embodiment, the outer diameter of the second side plate 24 is equal to the outer diameter of the first side plate 23. In addition, an opening having a circular cross section having the same diameter as that of the opening 40 of the first side plate 23 is provided in the central portion of the second side plate 24.

  As shown in FIG. 2, the inner side surface 23 a of the first side plate 23 faces the inner side surface 24 a of the second side plate 24. The outer side surface 23c of the first side plate 23 and the outer side surface 24c of the second side plate 24 are flat surfaces. The second side plate 24 is cylindrical in a state where the inner side surface 24 a of the second side plate 24 is in contact with the side surface of the core 22 by fitting the protrusion of the cylindrical member 30 into the opening of the second side plate 24. It is fixed to the member 30.

  Next, the desiccant container 1 in the present embodiment will be described in detail with reference to FIGS. 4 is an enlarged perspective view of the desiccant container shown in FIG. FIG. 5 is a side view of the desiccant container shown in FIG. 4. 6 is a cross-sectional view taken along line VI-VI in FIG.

  As described above, the desiccant container 1 is used for the adhesive tape reel 21 and includes the body 2 and the flange 3. The trunk | drum 2 is a main-body part which accommodates the desiccant K, and has the hollow part in which the desiccant K is accommodated. The body portion 2 has a shape and a size that can be accommodated in the shaft hole 25 of the adhesive tape reel 21. In this embodiment, the trunk | drum 2 has comprised the cross-sectional circular shape, and has comprised the cylindrical shape as a whole. The outer diameter R1 of the body 2 is the same as the inner diameter of the hole 25a of the shaft hole 25 of the adhesive tape reel 21. The outer diameter R1 of the trunk | drum 2 is 15 mm-30 mm, for example. The outer diameter R1 is preferably 50% to 100% and more preferably 60% to 99% of the inner diameter of the hole 25a. The thickness T of the trunk | drum 2 shown in FIG. 6 is 0.5 mm-2.0 mm, for example, Preferably it is 0.8 mm-1.1 mm. To prevent the body 2 from protruding from the outer surface of the adhesive tape reel 21, the height of the body 2 (the distance from one end 2 c to the other end of the body 2 in this embodiment) H is The distance is preferably equal to or less than the distance between the outer side surface 23c of the first side plate 23 and the outer side surface 24c of the second side plate 24, for example, 1 mm to 30 mm, preferably 3 mm to 11 mm. The height H is equal to or less than the thickness of the cylindrical member 30 described above. If the trunk | drum 2 does not protrude from the outer surface of the reel 21 for adhesive tapes, the arrangement | positioning ease at the time of packing the reel 21 for adhesive tapes by which the desiccant container 1 was engage | inserted can be ensured. But the trunk | drum 2 may protrude from the outer surface of the adhesion | attachment reel 21 in the range which does not inhibit the ease of arrangement at the time of packing. In this case, the amount of the body portion 2 protruding from the outer surface of the bonding reel 21 is preferably 30% or less of the height H of the body portion 2, more preferably 20% or less, and 10% or less. Even more preferably.

  A flange 3 is provided on one end 2c side of the body 2b of the body 2 and the other end of the body 2b of the body 2 is a wall 2a. The wall portion 2a is provided with a plurality of hole portions 7 that communicate with the hollow portion. In this embodiment, two holes 7 and 7 are provided in the wall 2a. By such a plurality of holes 7, 7, a suction port and a discharge port are formed, and it can be expected to exhibit an effective drying ability. The diameter of the hole 7 is, for example, 0.1 mm to 0.5 mm. Moreover, as shown in FIG. 6, it is preferable that the hole part 7 becomes narrow as it goes inside from the outer side of the wall part 2a. According to this configuration, it can be expected that the desiccant component spills out from the inside to prevent contamination of the product.

  The body 2 is preferably made of a softer material than the material of the adhesive tape reel 21. Examples of such a material include polystyrene, polyethylene, polypropylene, polyurethane, and expanded polystyrene. In this case, it is possible to prevent the adhesive tape reel 21 from being damaged when the desiccant container 1 is fitted into the adhesive tape reel 21. Further, since these materials are difficult to peel off, contamination of the adhesive tape T due to the material of the body portion 2 can be prevented.

  The collar portion 3 is provided in an annular shape over the entire circumference of the trunk portion 2 on the one end 2 c side of the trunk portion 2. In the example shown in FIG. 6, the thickness T of the collar part 3 is equal to the thickness T of the trunk | drum 2, for example, 0.5 mm-2.0 mm, Preferably it is 0.8 mm-1.1 mm. Moreover, it is preferable that the outer diameter R2 of the collar part 3 is larger than the internal diameter of the hole part 25a, for example, is 20 mm-40 mm. The outer diameter R2 is preferably 101 to 300% of the hole 25a, more preferably 105 to 200%, and particularly preferably 110 to 180%. The width W of the flange 3 is preferably, for example, 3 mm to 30 mm, more preferably 4 mm to 20 mm, and particularly preferably 5 mm to 10 mm. As for the collar part 3, it is preferable that a soft material is used rather than the material of the reel 21 for adhesive tapes similarly to the trunk | drum 2. As such a material, for example, polystyrene, polyethylene, polypropylene, polyurethane, expanded polystyrene, etc. There is. In this case, there is no possibility of damaging the adhesive tape reel 21 when the desiccant container 1 is fitted into the adhesive tape reel 21. Moreover, since these materials are difficult to peel off, it is possible to prevent the adhesive tape T from being contaminated due to the material of the collar portion 3. It is preferable that the flange portion 3 is in contact with the outer side surface of the side plate (for example, the outer side surface 23c of the first side plate 23) when the body portion 2 is disposed in the shaft hole 25. It is preferable that the surface of the flange portion 3 is also in contact with the outer surface of the cylindrical member 30 in which the shaft hole 25 is provided.

  In this embodiment, the collar part 3 is integrally formed with the trunk part 2, and the desiccant container 1 has a shape like a so-called hat composed of the trunk part 2 and the collar part 3. Furthermore, the desiccant container 1 includes a sealing portion 5. The sealing part 5 is a sealing member such as a thin film. The sealing part 5 seals the hollow part that accommodates the desiccant K in the body part 2 and is bonded to the bottom surface of the flange part 3. The planar shape of the sealing portion 5 is circular, and the outer diameter of the sealing portion 5 is the same as the outer diameter R2 of the flange portion 3. The thickness of the sealing part 5 is preferably, for example, 0.1 mm to 2 mm, more preferably 0.1 mm to 1 mm, and particularly preferably 0.1 mm to 0.5 mm. In the example shown in FIG. 6, the surface of the sealing portion 5 is parallel to the surfaces of the wall portion 2 a of the trunk portion 2 and the flange portion 3. For the sealing part 5, for example, a PET film, a plastic film such as polyethylene, polystyrene, or an OPP film, or a sheet with an adhesive layer such as moisture-resistant paper is used.

More specifically, the sealing portion 5, for example, JIS Z-0208 moisture permeability as defined by the combined appropriately ^30g / m 2 / 24hr or less of the material, the moisture permeability ^10g / m 2 / 24hr or less The one adjusted to is used. Moisture permeability 30g ^/ m 2 / 24hr or less of the material, for example, ethylene - vinyl alcohol copolymer, polyvinylidene chloride, polyacrylonitrile, biaxially oriented polyester, high density polyethylene, low density polyethylene, cast polypropylene, aluminum Foil. Furthermore, the vapor deposition sheet which vapor-deposited aluminum on polyester can be used for the sealing part 5. FIG.

  The desiccant K accommodated in the desiccant container 1 is for dehumidification, and is, for example, an inorganic material, a water-absorbing polymer, or a combination of an inorganic material and a water-absorbing polymer. Examples of the inorganic material include lime (calcium oxide, calcium hydroxide), silica gel, calcium chloride, zeolite, lithium chloride, and the like. Examples of the water-absorbing polymer include cross-linked polyacrylic acid soda, vinyl acetate-acrylate copolymer saponified product, vinyl acetate-methyl maleate copolymer saponified product, cross-linked isobutylene-maleic anhydride copolymer, starch- One or a combination of two or more of saponified acrylonitrile graft copolymer, starch-acrylic acid graft polymer, polysaccharide-acrylic acid graft polymer, cross-linked product of Poval, and cross-linked product of polyethylene oxide. The desiccant K has a block-like columnar shape, for example, and the diameter of the desiccant K is, for example, about several mm to several tens mm.

  As described above, in the desiccant container 1 according to the present embodiment, when the body portion 2 in which the desiccant K is accommodated is disposed in the shaft hole 25 (the hole portion 25a) of the adhesive tape reel 21. The flange portion 3 provided on the body portion 2 comes into contact with the outer side surface of the side plate of the adhesive tape reel 21 (for example, the outer side surface 23c of the first side plate 23). By being hooked on the outer surface, the body 3 can be held in a state of being housed in the shaft hole 25 (the hole 25a) of the reel 21 for adhesive tape. At this time, since only the flange 3 along the outer surface of the side plate is located outside the reel 21 for the adhesive tape, the protrusion of the desiccant container 1 is suppressed. Therefore, when the desiccant container 1 is set on the adhesive tape reel 21 where the distance between the side plates 23 and 24 is narrow, the adhesive tape reel 21 is inserted into a thin insertion slot 81 as shown in FIG. It becomes possible to make it neatly accommodated in the packaging bag 80 which has. Further, by setting the desiccant K in the shaft hole 25, it is possible to effectively perform dehumidification around the shaft hole 25, and the adhesive force of the adhesive tape T wound around the core 22 of the reel 21 for adhesive tape. Can be suppressed.

  Further, as described above, the outer diameter R1 of the body 2 is preferably the same as the inner diameter of the hole 25a of the shaft hole 25 of the reel 21 for adhesive tape. The hole 25 can be fitted into the hole 25a without a gap. Accordingly, even when the adhesive tape reel 21 is transported in a state where the body portion 2 of the desiccant container 1 is fitted in the hole portion 25a, the body portion 2 is firmly held in the shaft hole 25, and the desiccant is retained. It can suppress that the container 1 moves.

  Moreover, it is preferable that the trunk | drum 2 has comprised the cross-sectional circular shape, and in this case, the trunk | drum 2 can be more easily fitted in the axial hole 25 (the hole part 25a). Moreover, it is preferable that the collar part 3 is provided in the annular | circular shape over the perimeter of the trunk | drum 2 in the one end 2c side of the trunk | drum 2, In this case, the collar part 3 is the outer surface (for example, 1st 1st side). Since the outer side surface 23c) of the side plate 23 is firmly hooked, the barrel portion 3 can be held more stably in the shaft hole 25.

  In general, the environment where the adhesive tape reel 21 is used is a room called a clean room where the room temperature, humidity, and cleanliness are controlled at a certain level. When shipped from the production site, it is directly exposed to the outside air. Then, the adhesive tape reel 21 is packed in the packing bag 80 so as not to cause quality degradation due to dust and moisture. At this time, as described above, the desiccant K fixed in the shaft hole 25 of the adhesive tape reel 21 can suitably absorb moisture remaining in the packaging bag 80 and moisture due to entry from the outside. A decrease in the adhesive strength of the adhesive layer of the adhesive tape T wound around the core 22 of the reel 21 can be suppressed.

  The packing bag 80 is made of, for example, polyethylene, polypropylene, polystyrene terephthalate, or the like. When packing, it is preferable to suck and remove air in the packing bag 80 before closing the insertion port 81 of the packing bag 80. In order to prevent air from entering from the outside, it is preferable that the insertion port 81 of the packaging bag 80 is closed and sealed by, for example, a sealing machine. In this case, it can be expected that moisture in the packing bag 80 is reduced from the initial stage of packing, and that air from the outside is prevented from entering. Further, when the inner surface of the packaging bag 80 and the adhesive tape reel 21 are in close contact with each other, the inner surface of the packaging bag 80 and the surface of the adhesive tape reel 21 are rubbed due to vibration during transportation or conveyance, or an adhesive tape. It is possible to prevent the outer surfaces 23c and 24c of the side plates 23 and 24 of the reel 21 from being damaged. The packaging bag 80 has transparency so that various information such as a product name, a lot number, an expiration date, and the like affixed to the internal adhesive tape reel 21 can be confirmed even from outside the packaging bag 80, and heat. It is preferable to use a material that is in close contact with pressure and has a notch for opening. In this case, since various information of the adhesive tape reel 21 can be confirmed from the outside of the packaging bag 80, it can be expected that mixing of different products can be prevented and sorting work can be efficiently performed. Moreover, since the cut for opening is attached, the opening operation at the time of use becomes easy.

  As mentioned above, although the desiccant container 1 of this invention was demonstrated using suitable embodiment, the desiccant container 1 of this invention is not restricted to said form. In the said embodiment, although the trunk | drum 2 and the collar part 3 were shown in the example integrally formed, after forming the trunk | drum 2 and the collar part 3 separately previously, the trunk | drum 2 and the collar part 3 are united. May be. Moreover, although the sealing part 5 showed the example which is a different body from the trunk | drum 2 and the collar part 3, the trunk | drum 2, the collar part 3, and the sealing part 5 may be integrally formed. In this case, for example, after the desiccant K is accommodated from a cut or the like provided in advance in the body portion 2, the cut may be sealed. Moreover, in the said embodiment, although the trunk | drum 2 showed the example which is a cylindrical shape as a whole, the trunk | drum 2 fits the shape and magnitude | size which can be accommodated in the axial hole 25 (the hole part 25a) of the reel 21 for adhesive tapes. For example, it may have a cross-sectional polygonal shape as shown in FIG. Furthermore, the trunk | drum 2 may be hemispherical, a cube shape, or a star shape etc., for example. In addition, although the example in which the shaft hole 25 has a shape like a so-called key hole is shown, the shaft hole may be simply a circular hole. In this case, the outer diameter R1 of the trunk portion 2 may be equal to or smaller than the inner diameter of the shaft hole. In the above example, the outer diameter R1 of the body portion 2 is the same as the inner diameter of the hole portion 25a of the shaft hole 25 of the adhesive tape reel 21, but the outer diameter R1 of the body portion 2 is bonded. What is necessary is just to be below the internal diameter of the hole 25a of the shaft hole 25 of the reel 21 for tapes.

  Moreover, although the example which the collar part 3 has comprised the annular | circular shape was shown, it is not limited to this shape. For example, the collar part 3 may have a polygonal shape as shown in FIG. 8 (b), may have a rectangular shape as shown in FIG. 8 (c), and is shown in FIG. 8 (d). Thus, the notch may be formed in the outer peripheral part of the collar part 3. In the example shown in FIG. 8 (d), substantially V-shaped notches are formed at substantially equal intervals at four locations on the outer peripheral portion of the annular collar portion 3.

  Furthermore, as shown in FIG. 9, the flange portion 3 may be a flange portion 3 a that protrudes from a part of the trunk portion 2 on the one end 2 c side of the trunk portion 2. In the example shown in FIG. 9, the flange portion 3 a protrudes from only a part of the body portion 2 in a tongue shape. In this case, since the shape of the collar part can be simplified, the cost of the desiccant container 1 can be reduced. Moreover, in this case, the sealing part 5a can be made into the shape which added together the shape of the end 2c of the trunk | drum 2, and the shape of the collar part 3a, for example. The shape of the collar portion 3a is not limited to the shape of a tongue piece, and any shape is acceptable as long as it is in contact with the outer surface of the side plate of the adhesive tape reel 21 and can support the desiccant container 1. There may be. Further, the number of the buttocks is not limited to one, and a plurality of buttocks may be formed, and each of the plurality of buttocks overhangs from a part of one end 2c of the trunk 2 on the one end 2c side of the trunk 2. It may be. According to this configuration, it is possible to secure the area of the portion that comes into contact with the outer surface of the side plate of the adhesive tape reel 21 without forming the collar portion around the entire circumference of the one end 2 c of the body portion 2.

  Moreover, although the hole part 7 of the trunk | drum 2 showed the example which became narrow as it goes inside from the outer side of the wall part 2a, it is not limited to this, According to required moisture absorption speed, sustainability, etc. suitably It can be changed. For example, the hole part 7 of the trunk | drum 2 may become a substantially constant width from the outer side of the wall part 2a to the inner side, and may become wide as it goes to the inner side from the outer side of the wall part 2a. The diameter of the hole 7 can also be changed as appropriate.

  Further, moisture permeation holes may be formed in the sealing portion 5 to enable moisture absorption via the sealing portion 5. Alternatively, the sealing portion 5 may be formed of a material having moisture permeability so that moisture absorption through the sealing portion 5 is possible. In this case, the hole portion 7 of the trunk portion 2 may not be formed.

  Further, the body portion 2, the flange portion 3, the sealing portion 5 and the like may be given hygroscopicity so as to improve the hygroscopic speed. Specifically, a material having hygroscopicity may be included in the material of the body portion 2, the flange portion 3, the sealing portion 5, and the like. Examples of the hygroscopic material include polyhydric alcohols such as trimethylolpropane, glycerin, methoxypropanediol, and ethoxypropanediol; amino alcohols such as mono-, g-, tri-ethanolamine, mono-, g, and tri-propanolamine. A poly (meth) acrylic acid, a copolymer of poly (meth) acrylic acid and polyvinyl alcohol, polyethylene glycols, dimethylthiourea, cyanamide, methylimidazole, and the like.

  Further, as the structure of the adhesive tape reel 21, the winding core 22 is fixed to the inner side surface 23 a of the first side plate 23 so as to surround the opening 40 of the first side plate 23, and the cylindrical member 30 is the first member. An example in which the first side plate 23 is fitted into the opening 40 is shown. However, the structure of the reel 21 for adhesive tape is not limited to this, and without using the cylindrical member 30, the winding core 22 has a cylindrical shape, and both ends of the winding core 22 are connected to the opening 40 and the first side plate 23. A structure that is fitted into the opening of the second side plate 24 may be used. In this structure, the trunk portion 2 of the desiccant container 1 can be fitted into the shaft hole provided in the central portion of the winding core 22.

  Moreover, although the example which fits the trunk | drum 2 of the desiccant container 1 in the hole 25a of the shaft hole 25 from the 1st side plate 23 side was shown, the trunk | drum 2 is shown in the shaft hole 25 from the 2nd side plate 24 side. You may fit in the hole part 25a. In this case, in the structure in which the cylindrical member 30 is not used as described above, the flange portion 3 can be brought into contact with, for example, the outer surface 24 c of the second side plate 24.

  Further, the adhesive tape T may be a non-conductive tape whose adhesive layer is made of an adhesive component and does not contain conductive particles, and has no anisotropy in which conductive particles are blended more than anisotropic conductive tape. A tape may be used. Moreover, it is applicable also to various adhesive films, such as a die bond film, a silver film, and an adhesive film for semiconductor wafer processing.

  Further, the weight ratio of the desiccant K and the adhesive tape T is preferably 0.005: 1 to 1.5: 1, and more preferably 0.01: 1 to 0.5: 1. Moreover, when the collar part 3 of the desiccant container 1 has a disk shape, the contact area between the collar part 3 and the outer surface of the adhesive tape reel 21 is a circle derived from the outer diameter of the disk-shaped collar part 3. It is preferably 80% or less of the area excluding the circular area derived from the outer diameter R1 of the body 2 from the area of the plate, more preferably 40% to 80%, and more preferably 50% to 70 % Is particularly preferred. In this case, when the desiccant K is fitted into the shaft hole 25, the flange portion 3 is brought into contact with the outer surface of one side plate, and the desiccant K is prevented from penetrating the shaft hole 25 or rattling. The desiccant K can be stably held.

EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated more concretely, this invention is not limited to a following example.
(Preparation 1)

  First, as a base material used for the adhesive tape T, a PET film (UH2: manufactured by Teijin DuPont Films Co., Ltd.) having a thickness of 50 μm with both surfaces peeled with a silicone resin was prepared. Next, a phenoxy resin (a glycidyl etherified modified product of a biphenyl derivative and a bisphenol fluorene type skeleton and a bisphenol A / bisphenol F type skeleton) was used as a film forming material. As the reactive resin, a naphthalene skeleton type epoxy resin or a rubber-modified epoxy resin was used. As the curing agent, a liquid epoxy (bisphenol F type liquid epoxy resin, naphthalene type epoxy resin, microencapsulated amine curing agent) containing a microcapsule type latent curing agent was used. As the conductive particles, a 0.2 μm thick Ni layer was provided on the surface of the polystyrene core, and a 0.04 μm thick Au layer was formed on the outside of the Ni layer. It was. Blended so that the solid weight ratio is 28.2 g of phenoxy resin, 13.9 g of epoxy resin, 16.1 g of microcapsule type latent curing agent, and 0.6 g of silane coupling agent (glycidoxypropyltrimethoxysilane). Further, 6% by volume of conductive particles were dispersed to obtain a film coating solution.

  Subsequently, the obtained film coating solution was applied to one side of the PET film by a roll coater. Subsequently, this film coating solution was dried with hot air at 70 ° C. for 5 minutes to obtain an anisotropic conductive adhesive film having an adhesive layer thickness of 20 μm. Furthermore, this adhesive film was slit to a width of 2 mm to obtain an adhesive tape.

  On the other hand, a core having an opening corresponding to the shaft hole at the center was prepared. The width of the winding core was 2.5 mm, the inner diameter (shaft hole / opening diameter) was 40 mm, and the outer diameter of the winding core was 65 mm. Two annular side plates made of plastic having a thickness of 2 mm, an inner diameter of 40 mm, and an outer diameter of 125 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. Subsequently, the adhesive tape was wound around the core of the adhesive tape reel with the adhesive surface inside. As described above, an adhesive tape reel obtained by winding an anisotropic conductive adhesive tape having a length of 50 m and a width of 2.0 mm around a winding core was obtained.

Next, a barrier bag is prepared as a packaging bag for inserting the reel for the adhesive tape, a desiccant (trade name: IDY desiccant, manufactured by IDY Co., Ltd.) is prepared, and a sealer for sealing the insertion port of the packing bag is prepared. A machine was prepared.
(Example 1) (Production of a packaged product having a desiccant and sealing an insertion port of a packaging bag)

First, a desiccant container having a shape like a so-called hat composed of a trunk and a heel as shown in FIG. 4 was prepared. At this time, the body portion was shaped to fit within the shaft hole. Foamed polystyrene was used as the material for the body and the buttocks. Next, the desiccant prepared in advance preparation 1 was accommodated in the body part of the desiccant container, and then sealed with a sealing part. A PET film was used as a material for the sealing portion. The body part of the desiccant container was fitted into a shaft hole provided in the central part of the core of the adhesive tape reel obtained in preparation 1. At this time, the collar portion was brought into contact with the outer surface of one side plate. Thus, the structure which fixed the desiccant container to the reel for adhesive tapes was put in the packaging bag. Air in the packing bag was sucked to remove the air in the bag, and then a packing product was created in which the insertion port of the packing bag was sealed with a sealer machine.
(Comparative Example 1) (Production of a packing product that does not have a desiccant and does not seal the insertion port of the packing bag)

Without placing a desiccant in the shaft hole of the adhesive tape reel obtained in Preparation 1, the adhesive tape reel was placed in a packaging bag to produce a packaged product that did not seal the packing bag insertion port.
(Comparative Example 2) (Production of a packaged product without a desiccant and with the insertion port of the packaging bag sealed)

A desiccant was not placed in the shaft hole of the adhesive tape reel obtained in Preparation 1, and the adhesive tape reel was placed in a packaging bag, and a packaged product was produced in which the insertion port of the packaging bag was sealed.
(Adhesion test)

The packaged products obtained in Example 1, Comparative Example 1 and Comparative Example 2 were left to stand for 200 hours in an environment of 25 ° C./70% RH, and the quality was confirmed. At this time, the reel for the adhesive tape taken out from the packaged product obtained in Example 1, Comparative Example 1 and Comparative Example 2 is mounted on the feeding device, and from the support film side of the adhesive tape unwound from the reel for adhesive tape. The film was pressure-bonded to a glass substrate with a heating and pressing head at 70 ° C., 1 MPa, and 2 seconds, the support film was peeled off, and the adhesive force of the adhesive tape to the glass substrate was tested. The number of tests is 10 each, and the evaluation is ◯ when the adhesive tape cannot be peeled off from the glass substrate, △ when the adhesive tape is only partially peeled off from the glass substrate, and part of the adhesive tape is peeled off from the glass substrate. What was to be marked as x. In addition, the case where the adhesive tape was peeled from 0 to 1 from the glass substrate was A, the case where it was 2 to 4 was B, and the case where it was 5 or more was C. The results are summarized in Table 1.

  As shown in Table 1, it was found that in Example 1, the adhesive tape was not peeled from the glass substrate, the number of peeled sheets was small, and there was no problem in practical use. Further, in Comparative Examples 1 and 2, it was found that the adhesive tape was partially peeled off or entirely peeled from the glass substrate, and the quality was not practically acceptable.

  Furthermore, after leaving the packaged products of Example 1, Comparative Example 1, and Comparative Example 2 in a refrigerator temperature-controlled at −5 ° C. to −10 ° C. for 200 hours, the same test was performed. Similar results were obtained for Example 1. Moreover, about the comparative example 1 and the comparative example 2, the characteristic was better than the effect of the said test shown in Table 1. This seems to be because the refrigerator was dry compared to the room temperature test. However, the characteristics of Example 1 were improved as compared with Comparative Examples 1 and 2.

  The present invention can be used for manufacturing, supplying, and storing an adhesive tape.

  DESCRIPTION OF SYMBOLS 1 ... Desiccant container, 2 ... Body part, 2a ... Wall part (body part 2), 2b ... Body (body part 2), 2c ... One end (body part 2), 3, 3a ... Butt part, 5, 5a ... Sealing part, 21 ... Reel for adhesive tape, 22 ... Core, 23 ... First side plate, 24 ... Second side plate, 23c ... Outer surface (of the first side plate), 24c ... (First 2) outer surface of 25 side plates, 25 ... shaft hole, K ... desiccant.

Claims (7)

For an adhesive tape comprising a winding core around which the adhesive tape is wound and a pair of side plates provided across the winding core, and provided with a shaft hole through which a rotating shaft of a device for winding or feeding the adhesive tape passes. A desiccant container used for a reel,
Forming a shape that fits in the shaft hole, and a body portion having a hollow portion in which a desiccant is accommodated,
A desiccant container, comprising: a body portion provided on the body portion, and a flange portion that contacts the outer surface of the side plate when the body portion is disposed in the shaft hole.   The desiccant container according to claim 1, wherein the body has a circular cross section.   The desiccant container according to claim 2, wherein the flange portion is provided in an annular shape over the entire circumference of the body portion on one end side of the body portion.   The desiccant container according to claim 2, wherein the flange portion projects from a part of the body portion at one end side of the body portion.   The desiccant container according to any one of claims 1 to 4, wherein a plurality of holes communicating with the hollow portion are provided in a wall portion on the other end side of the body portion.   The desiccant container according to claim 5, wherein the hole portion becomes narrower from the outside to the inside of the wall portion.   The reel for adhesive tapes formed by setting the desiccant container as described in any one of Claims 1-6 to the said shaft hole.

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