TWI532664B - Desiccant container and subsequent reel - Google Patents

Description

Desiccant container and subsequent reel

The present invention relates to a desiccant container and to a reel for a belt.

For the connection between the connected members having a plurality of electrodes and the fixing of the lead frame, for example, an anisotropic conductive bonding tape is known. When a semiconductor element such as an IC or an LSI is connected to a substrate such as a printed wiring board, a glass substrate for LCD, or a flexible printed circuit board, the anisotropic conductive bonding tape can electrically connect the opposing electrodes to each other, and on the other hand, adjacent ones. The electrodes are kept insulated from each other. The adhesive tape is formed by forming an adhesive layer on a substrate such as polyethylene terephthalate (PET), and cutting the sheet-like raw material into strips according to the width required for the application. Further, the above-mentioned adhesive layer includes, for example, an adhesive component containing a thermosetting resin and conductive particles formulated as needed.

The tape as described above is stored, transported, and used in a state of being wound around a tape reel including, for example, a winding core and a pair of side plates provided with the winding core interposed therebetween. In the conventional reel for reel, the desiccant is used in order to prevent the resin composition of the adhesive tape wound around the roll of the winding core from being exposed to the outside, that is, a so-called edge fusion phenomenon. The method of accommodating a bag that is followed by a reel is also enclosed. For example, in Patent Document 1, a desiccant is accommodated in a bag-shaped sheet. In Patent Document 2, an end portion of a roll of a laminated body film is wound around a winding core, and a dehumidifying sheet is disposed.

Prior art literature Patent literature

Patent Document 1 Japanese Patent Laid-Open Publication No. 2001-159814

Patent Document 2 Japanese Patent Laid-Open Publication No. 2002-37379

However, the above is followed by a narrow width of only a few mm. For the reel tape reel which is wound with such a subsequent tape, the interval between the side plates is narrowed corresponding to the width of the subsequent tape. Therefore, in order to apply the conventional method of storing the desiccant, the desiccant is largely exposed from the tape reel which is attached to the tape, and it is difficult to completely accommodate the tape reel and the desiccant in the bag.

The present invention has been made to solve the above problems, and an object of the invention is to provide a desiccant container which can be assembled to a reel for a tape in a state in which exposure is suppressed.

In order to solve the above problems, the desiccant container of the present invention is a desiccant container for a reel for a belt, the reel reel comprising a winding core wound with a belt and a core sandwiching the core. The side plate, the reel reel is provided with a shaft hole through which the rotating shaft of the device for winding or unwinding the tape is passed, and the desiccant container is characterized by comprising: a body portion formed to be received in the a shape of the shaft hole and a hollow portion for accommodating the desiccant; and a flange portion provided on the body portion and abutting the outer side of the side plate when the body portion is disposed in the shaft hole side.

In the desiccant container, when the body portion accommodating the desiccant is placed in the shaft hole of the tape reel, the flange portion provided on the body portion abuts against the outer surface of the side plate of the tape reel. By clamping the flange portion to the outer side surface of the side plate, the body portion can be held in the shaft hole of the tape reel status. At this time, only the flange portion along the outer side surface of the side plate is provided on the outer side of the tape reel, and the exposure of the desiccant container can be suppressed. Therefore, even in the case where the desiccant container is assembled in the reel which is narrow in the interval between the side plates, the reel for the end tape can be completely accommodated in the packaging bag.

Further, the cross section of the body portion is preferably circular. In this case, the body portion can be easily inserted into the shaft hole.

Moreover, it is preferable that the flange portion is provided in an annular shape around the entire circumference of the body portion on one end side of the body portion. In this case, the flange portion is firmly caught on the outer side surface of the side plate, so that the body portion can be held in the shaft hole more stably.

Further, it is preferable that the flange portion protrudes from a part of the body portion on one end side of the body portion. In this case, the shape of the flange portion can be simplified, and the cost of the desiccant container can be reduced.

Further, it is preferable that a wall portion on the other end side of the body portion is provided with a plurality of holes communicating with the hollow portion. In this case, the suction port and the discharge port are formed, and the drying ability can be effectively exhibited.

Further, it is preferable that the hole portion is gradually narrowed from the outer side to the inner side of the wall portion. In this case, it is possible to prevent the desiccant component from being spilled from the inside to cause contamination of the product.

Further, it is possible to form a reel for a belt which is obtained by assembling a desiccant container in a shaft hole.

According to the present invention, the desiccant container can be assembled to the subsequent tape reel in a state where the exposure is suppressed.

Hereinafter, a preferred implementation of the desiccant container of the present invention will be described with reference to the accompanying drawings. The method will be described in detail. Fig. 1 is a perspective view showing a desiccant container according to an embodiment of the present invention and a reel tape reel to which the desiccant container is applied. Fig. 2 is a cross-sectional view taken along line II-II of Fig. 1;

As shown in FIGS. 1 and 2, the desiccant container 1 is used for the tape reel 21. The reel reel 21 includes a first side plate 23 having a winding core 22 with a tape T wound around an anisotropic conductive adhesive tape, and a second side plate disposed to face the first side plate 23 with the winding core 22 interposed therebetween. twenty four. This subsequent tape reel 21 is used when manufacturing, supplying, and storing the tape T.

First, the following tape T will be described. The tape T is then used as a connecting material for electrical connection and mechanical fixing, such that, for example, the conductive states of the opposing electrodes are maintained, and the adjacent electrodes are insulated from each other. Next, the length of the tape T is usually about 50 m to 1000 m, and in the present embodiment, it is 300 m or more. Further, the width of the tape T is preferably 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 tape T is then 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 tape T includes a substrate 91 and an adhesive layer 92 provided on the substrate 91. Further, the tape T may be provided with various films on the adhesive layer 92. From the viewpoint of strength and peelability of the adhesive, the substrate 91 for the subsequent tape T can be used, for example, including extensible polypropylene (OPP), polyethylene terephthalate (PET), polynaphthalene. Ethylene diformate, polyethylene isophthalate, polybutylene terephthalate, polyolefin, triacetate, polycarbonate, polyphenylene sulfide, polyamine, ethyl-acetate Ethylene copolymer, polyvinyl chloride, polyvinylidene chloride, Various bands such as synthetic rubbers and liquid crystal polymers. However, the material constituting the substrate is not limited to this. Moreover, as the base material 91, a base material subjected to a release treatment such as a surface that is in contact with the adhesive layer may be used. As the release agent, a low melting point wax such as an olefin type release agent, ethylene glycol montanate, palm wax or petroleum wax, a low molecular weight fluororesin, an anthrone or a fluorine surfactant, an oil or a wax is used. Resins, polyester modified ketone ketone resins, etc., especially fluorenone resins are more common.

The adhesive layer 92 for the subsequent tape T generally includes a thermoplastic resin, a thermosetting resin, or a resin such as a mixture of a thermoplastic resin and a thermosetting resin (mixed resin). Representative examples of the resins involved are as follows. The thermoplastic resin is, for example, a styrene resin or a polyester resin, and the thermosetting resin is an epoxy resin, an acrylic resin, or an anthrone resin.

Further, the adhesive layer 92 includes, for example, an adhesive composition containing an adhesive component and conductive particles contained as needed. As the adhesive component, a material which exhibits curability by, for example, heat or light can be widely used. From the viewpoint of good heat resistance and moisture resistance after the connection, it is preferred to use a crosslinkable material. An epoxy-based adhesive containing an epoxy resin as a thermosetting resin as a main component is preferred because it can be cured in a short period of time, has good connection workability, and has good molecular structure adhesion. Further, a radical curing type adhesive composition as described in International Publication No. 2009/063827 may also be used. As the epoxy-based adhesive, for example, a high molecular weight epoxy resin, a solid epoxy resin or a liquid epoxy resin may be used, or the resins may be a polyurethane, a polyester, an acrylic rubber, a nitrile rubber (NBR), or a synthetic wire. Epoxy based modified epoxy resin as a main component Agent. The epoxy-based adhesive is generally an adhesive obtained by adding a curing agent, a catalyst, a coupling agent, a filler, or the like to the above-mentioned epoxy resin as a main component.

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

The ratio of the conductive particles to the volume of 100 parts of the adhesive component contained in the adhesive layer 92 is preferably 0.1 to 30 parts by volume, more preferably 0.1 to 10 parts by volume. When the blending ratio is less than 0.1 volume, the connection resistance between the opposing electrodes tends to be high, and when it exceeds 30 volume portions, the adjacent electrodes tend to be short-circuited. In addition, as for the components contained in the adhesive layer 92, the blending amount, the blending method, and the like, the components described in International Patent Publication No. 2009/063827, the blending amount, the blending method, and the like can be used.

Next, the configuration of the first side plate 23 and the second side plate 24 that follow the tape reel 21 will be described. As shown in FIG. 1, the first side plate 23 is, for example, a circular plate containing plastic. 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 corresponds to the length of the wound end tape T (followed by The diameter of the weight of the roll with T is appropriately set, for example, 100 mm to 500 mm, more preferably 125 mm to 250 mm. Further, an opening portion 40 having a circular cross section is provided at a central portion of the first side plate 23.

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

Further, a cylindrical member 30 is fitted into the opening 40 of the first side plate 23. The cylindrical member 30 includes, for example, a plastic like the core 22. The thickness of the cylindrical member 30 (for example, 4.5 mm to 11 mm) is substantially equal to the total thickness of the thickness of the first side plate 23 and the thickness of the second side plate 24 and the thickness of the winding core 22. As a result, the one end side of the cylindrical member 30 that is fitted into the opening 40 of the first side plate 23 serves as a projection that protrudes from the side surface of the winding core 22 by the same amount as the thickness of the second side plate 24 . Further, a shaft hole 25 is provided in a central portion of the cylindrical member 30 which is a central portion of the tape reel 21. The shaft hole 25 is inserted with a rotating shaft of a winding device or a winding device (not shown). When the rotating shaft is driven in a state in which the winding shaft of the winding device or the winding device is inserted into the shaft hole 25, the tape reel 21 is subsequently rotated without being idling. As shown in Fig. 1, the shaft hole 25 has a shape of a keyhole as a whole by a circular hole portion 25a disposed at the center and a long hole portion 25b protruding from a portion of the hole portion 25a. The inner diameter of the hole portion 25a is, for example, 15 mm to 30 mm.

Similarly to the first side plate 23, the second side plate 24 is a circular plate including, for example, plastic. The thickness of the second side plate 24 is, for example, 0.5 mm to 5.0 mm, preferably It is 0.9 mm to 3.0 mm, and more preferably 1.0 mm to 2.0 mm. Further, the outer diameter of the second side plate 24 is appropriately set in accordance with the length of the wound end tape T (the diameter of the winding weight body with the T), and is, for example, 100 mm to 500 mm, and more preferably 125 mm to 250 mm. 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. Further, in the central portion of the second side plate 24, an opening having a circular cross section having the same diameter as the opening 40 of the first side plate 23 is provided.

As shown in FIG. 2, the inner side surface 23a of the 1st side plate 23 opposes the inner side surface 24a of the 2nd 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. When the projection of the cylindrical member 30 is fitted into the opening of the second side plate 24, the second side plate 24 is fixed to the cylindrical member with the inner side surface 24a of the second side plate 24 abutting against the side surface of the winding core 22. 30.

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

As described above, the desiccant container 1 is used for the belt reel 21, and includes the trunk portion 2 and the flange portion 3. The body portion 2 is a main portion that houses the desiccant K and has a hollow portion that houses the desiccant K. The body portion 2 is formed to be housed in the shape and size of the shaft hole 25 of the tape reel 21. In the present embodiment, the cross section of the trunk portion 2 is circular. The whole is a cylindrical shape. The outer diameter R1 of the trunk portion 2 is equal to the inner diameter of the hole portion 25a of the shaft hole 25 of the tape reel 21. The outer diameter R1 of the trunk portion 2 is, for example, 15 mm to 30 mm. The outer diameter R1 is preferably 50% to 100% of the inner diameter of the hole portion 25a, and more preferably 60% to 99%. The thickness t of the trunk portion 2 shown in Fig. 6 is, for example, 0.5 mm to 2.0 mm, preferably 0.8 mm to 1.1 mm. In order to prevent the body portion 2 from being exposed from the outer side surface of the tape reel 21, the height of the body portion 2 (the distance from the one end 2c to the other end of the body portion 2 in the present embodiment) H is preferably outside the first side plate 23. The distance between the side surface 23c and the outer side surface 24c of the second side plate 24 is not less than, for example, 1 mm to 30 mm, preferably 3 mm to 11 mm. Further, the height H is equal to or less than the thickness of the cylindrical member 30. When the body portion 2 is formed so as not to be exposed from the outer side surface of the tape reel 21, it is possible to ensure the alignment convenience when packaging the tape reel 21 in which the desiccant container 1 is embedded. However, the body portion 2 may be exposed from the outer side surface of the subsequent tape reel 21 within a range that does not hinder the arrangement convenience at the time of packaging. At this time, the amount of the trunk portion 2 exposed from the outer surface of the tape reel 21 is preferably 30% or less, more preferably 20% or less, and still more preferably 10% or less of the height H of the trunk portion 2.

The flange 2 is provided on the one end 2c side of the main body 2b of the trunk portion 2, and the other end side of the main body 2b of the trunk portion 2 is the wall portion 2a. The wall portion 2a is provided with a plurality of hole portions 7, 7 communicating with the hollow portion. In the present embodiment, two hole portions 7, 7 are provided in the wall portion 2a. The suction port and the discharge port are formed by the plurality of holes 7 and 7, and it is expected that an effective drying ability can be exhibited. The diameter of the hole portion 7 is, for example, 0.1 mm to 0.5 mm. Further, as shown in Fig. 6, the hole portion 7 is preferably gradually narrowed from the outer side toward the inner side of the wall portion 2a. According to such a structure, it is possible to prevent the desiccant component from overflowing from the inside and causing contamination of the product.

The body portion 2 is preferably made of a material softer than the material of the reel 21 for the belt. The material is exemplified by polystyrene, polyethylene, polypropylene, polyurethane, expanded polystyrene, and the like. In such a case, it is possible to prevent the subsequent tape reel 21 from being damaged when the desiccant container 1 is fitted into the subsequent tape reel 21. Moreover, since these materials are not easily peeled off, it is possible to prevent contamination of the adhesive tape T by the material of the trunk portion 2.

The flange portion 3 is provided in an annular shape around the entire circumference of the trunk portion 2 on the one end 2c side of the trunk portion 2. In the example shown in Fig. 6, the thickness t of the flange portion 3 is equal to the thickness t of the body portion 2, and is, for example, 0.5 mm to 2.0 mm, preferably 0.8 mm to 1.1 mm. Further, the outer diameter R2 of the flange portion 3 is preferably larger than the inner diameter of the hole portion 25a, for example, 20 mm to 40 mm. The outer diameter R2 is preferably 101 to 300%, more preferably 105 to 200%, and particularly preferably 110 to 180% of the inner diameter of the hole portion 25a. The width W of the flange portion 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. Similarly to the trunk portion 2, the flange portion 3 is preferably made of a softer material than the tape reel 21, and examples of such a material include polystyrene, polyethylene, polypropylene, polyurethane, expanded polystyrene, and the like. In such a case, there is no fear that the desiccant container 1 is damaged when the desiccant container 1 is fitted into the subsequent tape reel 21. Moreover, these materials are not easily peeled off, and contamination of the adhesive tape T by the material of the flange portion 3 can be prevented. When the trunk portion 2 is disposed in the shaft hole 25, the flange portion 3 preferably abuts against the outer side surface of the side panel (for example, the outer side surface 23c of the first side panel 23). The surface of the flange portion 3 preferably abuts against the outer side surface of the cylindrical member 30 provided with the shaft hole 25.

In the present embodiment, the flange portion 3 is integrally formed with the body portion 2, and the desiccant container 1 is formed as a so-called cap including the body portion 2 and the flange portion 3. Sub-shape. Further, the desiccant container 1 includes a sealing portion 5. The sealing portion 5 is a sealing member such as a film. The sealing portion 5 seals the hollow portion of the trunk portion 2 in which the desiccant K is accommodated, and is then attached to the bottom surface of the flange portion 3. The planar shape of the sealing portion 5 is circular, and the outer diameter of the sealing portion 5 is equal to the outer diameter R2 of the flange portion 3. The thickness of the sealing portion 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 surface of the wall portion 2a of the trunk portion 2 and the flange portion 3. As the sealing portion 5, for example, a plastic film such as a so-called PET film, polyethylene, polystyrene, or OPP film, or a sheet having a pressure-resistant paper with an adhesive layer is used.

More specifically, the sealing portion 5 is appropriately combined with a material having a moisture permeability of 30 g/m ² /24 hr or less as defined in JIS Z-0208, and the moisture permeability is adjusted to 10 g/m ² /24 hr or less. The material having a moisture permeability of 30 g/m ² /24 hr or less is, for example, an ethylene-vinyl alcohol copolymer, a polyvinylidene chloride, a polyacrylonitrile, a biaxially stretched polyester, a high-density polyethylene, a low-density polyethylene, and no extension. Polypropylene, aluminum foil, etc. Further, as the sealing portion 5, various vapor deposition sheets in which aluminum is vapor-deposited on the polyester can be used.

The desiccant K contained in the desiccant container 1 is used for dehumidification, and is, for example, an inorganic material, a water-absorbent polymer, or a combination of an inorganic material and a water-absorbent polymer. The inorganic material is, for example, lime (calcium oxide, calcium hydroxide), tannin, calcium chloride, zeolite, lithium chloride or the like. The water-absorbing polymer is, for example, a crosslinked sodium polyacrylate, a saponified product of a vinyl acetate-ethyl acrylate copolymer, a saponified product of a vinyl acetate-methyl maleate copolymer, and an isobutylene-maleic anhydride copolymer crosslinked body. Saponified product of starch-acrylonitrile graft copolymer One or a combination of two or more of a powder-acrylic graft polymer, a polysaccharide-acrylic graft polymer, a crosslinked product of polyvinyl alcohol, and a crosslinked product of polyethylene oxide. The desiccant K is formed in, for example, a block-like cylindrical shape, and the diameter of the desiccant K is, for example, about several mm to several tens of mm.

As described above, the desiccant container 1 of the present embodiment is disposed in the trunk portion 2 when the trunk portion 2 in which the desiccant K is accommodated is disposed in the shaft hole 25 (hole portion 25a) of the tape reel 21. The flange portion 3 abuts against the outer surface of the side plate of the tape reel 21 (for example, the outer side surface 23c of the first side plate 23), and the flange portion 3 is caught on the outer side surface of the side plate, so that the body portion 3 is accommodated. The state of the shaft hole 25 (hole portion 25a) of the reel 21 is then held. At this time, only the flange portion 3 along the outer side surface of the side plate is located outside the tape reel 21, so that the desiccant container 1 can be prevented from being exposed. Therefore, when the desiccant container 1 is assembled on the subsequent tape reel 21 with a small interval between the side plates 23, 24, the subsequent tape reel 21 can be completely accommodated, for example, having a thin thickness as shown in FIG. The insertion port 81 is inside the package 80. Further, by assembling the desiccant K in the shaft hole 25, dehumidification around the shaft hole 25 can be effectively performed, and the adhesion force of the subsequent tape T wound around the core 22 of the tape reel 21 can be suppressed. reduce.

Further, as described above, the outer diameter R1 of the body portion 2 is preferably equal to the inner diameter of the hole portion 25a of the shaft hole 25 of the tape reel 21, and in this case, the body portion 2 can be fitted into the shaft hole without a gap. The hole portion 25a of 25. Therefore, in a state in which the trunk portion 2 of the desiccant container 1 is fitted into the hole portion 25a, even when the carrier tape reel 21 is transported, the body portion 2 can be firmly held in the shaft hole 25 and suppressed. The movement of the desiccant container 1.

Further, the cross section of the trunk portion 2 is preferably circular, and in this case, the trunk portion 2 can be easily fitted into the hole portion 25a of the shaft hole 25. Further, the flange portion 3 is preferably provided in an annular shape on the one end 2c side of the trunk portion 2 and around the entire circumference of the trunk portion 2, and in this case, the flange portion 3 is firmly caught on the outer side surface of the side panel ( For example, the outer side surface 23c) of the first side plate 23, therefore, the body portion 2 can be held in the shaft hole 25 more stably.

Further, in general, the environment in which the reel 21 is used next is a room called a clean room, and the indoor temperature, humidity, and cleanliness are managed to a certain extent, in order to prevent direct contact with the atmosphere when shipped from the production site. Incuring a deterioration in quality caused by dust and moisture, the tape reel 21 is then placed in the packaging bag 80 and packaged. At this time, as described above, by the desiccant K fixed in the shaft hole 25 of the tape reel 21, the moisture remaining in the packaging bag 80 and the moisture entering from the outside can be appropriately sucked off. Therefore, it is possible to suppress a decrease in the adhesion force of the adhesive layer of the tape T which is wound around the winding core 22 of the tape reel 21.

Further, the packaging bag 80 is made of, for example, polyethylene, polypropylene, or polyethylene terephthalate. When the packaging is carried out, it is preferred to suck out the air in the packaging bag 80 before closing the insertion opening 81 of the packaging bag 80. Further, in order to prevent intrusion of outside air, it is preferable to close and seal the insertion port 81 of the packaging bag 80 by, for example, a sealing machine. In such a case, from the initial stage after packaging, moisture in the packaging bag 80 is reduced, and entry of outside air can be prevented. Further, by adhering the inner surface of the packaging bag 80 to the subsequent tape reel 21, it is possible to prevent the inner surface of the packaging bag 80 and the surface of the subsequent reel 21 from coming into contact with each other due to vibration during transportation or transportation. The foreign matter generated by the friction and the damage to the outer side faces 23c, 24c of the side plates 23, 24 of the tape reel 21 are subsequently damaged. Further, the packaging bag 80 preferably has a material having transparency, and various information such as a product name, a lot number, an expiration date, and the like of the reel 21 which can be confirmed from the inside of the packaging bag 80 and which is attached to the inside, and is preferably used by heat and The pressure sealed material, and preferably has a slit for unsealing. In such a case, various information of the tape reel 21 can be confirmed from the outside of the packaging bag 80, so that mixing of different products can be prevented, and the sorting operation can be made more efficient. Further, by having a slit for unsealing, it is easy to perform the unsealing operation at the time of use.

Hereinabove, the desiccant container 1 of the present invention has been described using a preferred embodiment, and the desiccant container 1 of the present invention is not limited to the above embodiment. In the above embodiment, an example in which the trunk portion 2 and the flange portion 3 are integrally formed is shown. However, the trunk portion 2 and the flange portion 3 may be formed separately in advance, and then the trunk portion 2 and the flange portion may be combined. Further, an example in which the sealing portion 5 is separated from the trunk portion 2 and the flange portion 3 is shown, but the trunk portion 2, the flange portion 3, and the sealing portion 5 may be integrally formed. In such a case, the slit K can be sealed, for example, after the desiccant K is placed in a slit or the like provided in advance in the trunk portion 2. Moreover, in the above-described embodiment, the trunk portion 2 is an example of a cylindrical shape as a whole, and the trunk portion 2 may be shaped and sized to be accommodated in the shaft hole 25 (hole portion 25a) of the tape reel 21. For example, the cross section shown in Fig. 8(a) may be a polygon. Further, the body portion 2 may be, for example, a hemispherical shape, a cubic shape, or a star shape. Further, an example in which the shaft hole 25 is a so-called keyhole shape is shown, and the shaft hole may be only a circular hole. At this time, the outer diameter R1 of the body portion 2 is only in the shaft The inner diameter of the hole can be below. The above shows an example in which the outer diameter R1 of the trunk portion 2 is equal to the inner diameter of the hole portion 25a of the shaft hole 25 of the tape reel 21, and the outer diameter R1 of the body portion 2 is as long as the axis of the reel 21 for the belt. The inner diameter of the hole portion 25a of the hole 25 may be equal to or smaller than the inner diameter.

Further, an example in which the flange portion 3 has an annular shape is shown, but the shape is not limited thereto. For example, the flange portion 3 may be a polygonal shape as shown in FIG. 8(b), or may be a quadrangular shape as shown in FIG. 8(c), or may be a flange portion 3 as shown in FIG. 8(d). The peripheral portion forms a slit. In the example shown in FIG. 8(d), four substantially V-shaped slits are formed at substantially equal intervals in the outer peripheral portion of the annular flange portion 3.

Further, as shown in FIG. 9, the flange portion 3 may be a flange portion 3a that protrudes from a part of the body portion 2 on the one end 2c side of the trunk portion 2. In the example shown in Fig. 9, the flange portion 3a protrudes only from a part of the body portion 2 in a tongue shape. In such a case, the shape of the flange portion can be simplified, and therefore, the cost of the desiccant container 1 can be reduced. Further, at this time, the sealing portion 5a may be, for example, a shape of the one end 2c of the trunk portion 2 and a shape of the shape of the flange portion 3a. The shape of the flange portion 3a is not limited to the shape of the tongue, and may be any shape as long as it can abut against the outer side surface of the side plate of the tape reel 21 and can support the size and shape of the desiccant container 1. Further, the number of the flange portions is not limited to one, and the number of the flange portions may be plural, or the plurality of flange portions may be on the one end 2c side of the trunk portion 2, and a part of the end portion 2c of the trunk portion 2 may be provided. Extend. According to the above configuration, the flange portion does not need to surround the entire circumference of the one end 2c of the body portion 2, and the area of the abutting portion with the outer side surface of the side plate of the tape reel 21 can be secured.

Further, although the hole portion 7 of the trunk portion 2 is gradually narrowed from the outer side to the inner side of the wall portion 2a, the present invention is not limited thereto, and it can be appropriately adjusted in accordance with the required moisture absorption speed, sustainability, and the like. change. For example, the hole portion 7 of the trunk portion 2 may have a substantially constant width from the outside to the inside of the wall portion 2a, or may be gradually widened from the outside to the inside of the wall portion 2a. The diameter of the hole portion 7 can also be appropriately changed.

Further, a moisture permeable hole can be formed in the sealing portion 5, and moisture can be absorbed through the sealing portion 5. Alternatively, the sealing portion 5 is formed of a material having moisture permeability, and moisture can be absorbed through the sealing portion 5. In such a case, the hole portion 7 can be not formed in the body portion 2.

Further, the body portion 2, the flange portion 3, the sealing portion 5, and the like may be made hygroscopic to increase the moisture absorption speed. Specifically, a material having hygroscopicity may be contained in materials such as the body portion 2, the flange portion 3, and the sealing portion 5. The hygroscopic material is, for example, a polyhydric alcohol such as trimethylolpropane, glycerin, methoxypropanediol or ethoxypropanediol; monoethanolamine, diethanolamine, triethanolamine, monopropanolamine, dipropanolamine, tripropylamine An amino alcohol such as an alcohol amine; a copolymer of poly(meth)acrylic acid, poly(meth)acrylic acid and polyvinyl alcohol, polyethylene glycol, dimethylthiourea, cyanamide, methylimidazole or the like.

Further, as a configuration of the tape reel 21, the winding core 22 is fixed to the inner side surface 23a 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 embedded. The opening 40 of the first side plate 23. However, the structure of the tape reel 21 is not limited thereto, and the core 22 may be formed into a cylindrical shape without using the cylindrical member 30. In the shape, both ends of the winding core 22 are fitted into the opening 40 of the first side plate 23 and the opening of the second side plate 24. With the above configuration, the body portion 2 of the desiccant container 1 can be fitted into the shaft hole provided in the central portion of the winding core 22.

Further, an example in which the trunk portion 2 of the desiccant container 1 is fitted into the hole portion 25a of the shaft hole 25 from the first side plate 23 side is shown, and the body portion 2 may be fitted into the hole portion of the shaft hole 25 from the second side plate 24 side. 25a. At this time, in the configuration 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 side surface 24c of the second side plate 24.

Further, the tape T may be a non-conductive tape having an adhesive layer containing an adhesive component and containing no conductive particles, and a non-anisotropic conductive tape may be used which is more conductive than the anisotropic conductive tape. . Further, it can be applied to various adhesive films such as a solder film film, a silver film, and a film for semiconductor wafer processing.

Further, the ratio of the weight of the desiccant K to the tape T is preferably 0.005:1 to 1.5:1, more preferably 0.01:1 to 0.5:1. Further, when the flange portion 3 of the desiccant container 1 has a disk shape, the contact area between the flange portion 3 and the outer surface of the tape reel 21 is preferably from the outside of the disk-shaped flange portion 3. The area of the circular plate derived from the diameter is 80% or less, more preferably 40% to 80%, and particularly preferably 50% to 70%, of the area obtained by subtracting the area of the circular shape derived from the outer diameter R1 of the body portion 2. . In such a case, when the desiccant K is inserted into the shaft hole 25, the flange portion 3 abuts against the outer side surface of the one side plate, and the desiccant K can be prevented from passing through the shaft hole 25 or unstable, and the desiccant K can be stably held.

Hereinafter, the present invention will be more specifically described by way of examples, but The invention is not limited to the following embodiments.

(Prepare 1)

First, a PET film (UH2: manufactured by Teijin DuPont Film Co., Ltd.) having a thickness of 50 μm which was subjected to a release treatment by an fluorenone resin on both sides was prepared as a substrate for the tape T. Then, as the film forming material, a phenolic resin (glycidyl etherified modified product of a biphenyl derivative, a bisphenol fluorene type skeleton, and a bisphenol A/bisphenol F type skeleton) was used. A naphthalene skeleton type epoxy resin or a rubber modified epoxy resin is used as the reactive resin. As the curing agent, a liquid epoxy resin (bisphenol F type liquid epoxy resin, naphthalene type epoxy resin, or microencapsulated amine type curing agent) containing a microcapsule type latent curing agent is used. As the conductive particles, a Ni layer having a thickness of 0.2 μm was provided on the surface of the polystyrene-based core body, and an Au layer having a thickness of 0.04 μm was formed on the outside of the Ni layer, and the average particle diameter thus produced was 3 μm. Conductive particles. The solid content ratio was 28.2 g of a phenolic resin, 13.9 g of an epoxy resin, 16.1 g of a microcapsule latent curing agent, and 0.6 g of a decane coupling agent (glycidylpropyltrimethoxydecane). Further, 6 volume% of conductive particles were dispersed to obtain a film coating solution.

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

On the other hand, a core in which an opening portion corresponding to the shaft hole is provided in the center portion is prepared. The width of the core is 2.5mm, and the inner diameter (shaft hole ‧ opening diameter) is 40mm, the outer diameter of the core is 65mm. Further, 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 end portions of the winding core are fitted into the respective opening portions of the two side plates to obtain a reel for the subsequent belt. Then, the above-mentioned adhesive tape is wound back on the inner side with respect to the adhesive core with respect to the winding core of the reel. Thus, an anisotropic conductive tape having a length of 50 m and a width of 2.0 mm was wound around the core to obtain a reel for the tape.

Then, a moisture-proof bag was prepared as a packaging bag into which the above-mentioned tape reel was placed, and a desiccant (trade name: ID desiccant, manufactured by ID Co., Ltd.) was prepared, and a sealing machine for sealing the insertion port of the packaging bag was prepared.

(Example 1) (Production of a packaged product having a desiccant and sealing the insertion opening of the packaging bag)

First, a so-called hat-shaped desiccant container including a body portion and a flange portion as shown in Fig. 4 is prepared. At this time, the body portion is in a shape accommodated in the shaft hole. Expanded polystyrene is used as the material of the body portion and the flange portion. Then, the desiccant prepared in advance preparation is stored in the body portion of the desiccant container, and the sealing portion is sealed. A PET film was used as the material of the sealing portion. The body portion of the desiccant container is fitted into a shaft hole provided in the center portion of the winding core of the tape reel obtained in advance preparation 1. At this time, the flange portion abuts against the outer side surface of the one side plate. The desiccant container is fixed to the packaging body following the tape reel as described above. The air in the package is taken out to remove the air in the bag, and then a package is prepared which seals the insertion opening of the package with a sealing machine.

(Comparative Example 1) (without desiccant, and insertion of unsealed bags) Production of packaging products of the mouth)

The desiccant was not placed in the shaft hole of the subsequent tape reel obtained in advance, and the tape reel was placed in the packaging bag to prepare a package in which the insertion opening of the packaging bag was not sealed.

(Comparative Example 2) (Production of a packaged product having no desiccant and sealing the insertion opening of the package)

The desiccant was not placed in the shaft hole of the subsequent tape reel obtained in advance, and the tape reel was placed in the packaging bag to prepare a package in which the insertion opening of the packaging bag was sealed.

(Continue force test)

The package obtained in Example 1, Comparative Example 1, and Comparative Example 2 was allowed to stand in an environment of 25 ° C / 70% RH for 200 hours, and then the quality was confirmed. At this time, the unwinding device was attached to the tape reel taken out from the package obtained in Example 1, Comparative Example 1, and Comparative Example 2, and the pressure head was heated and pressed at 70 ° C, 1 MPa, and 2 In the second condition, the adhesive tape which was taken up from the tape reel was pressed against the glass substrate from the side of the support film, and the support film was peeled off to test the adhesion of the tape to the glass substrate. The number of tests was 10, and the evaluation that the tape was not peeled off from the glass substrate was ○, and the evaluation that the tape was peeled off from the glass substrate was Δ, and the evaluation of the peeling of a part or more of the tape from the glass substrate was ×. In addition, the evaluation of A and 2 pieces to 4 pieces of the next tape which was peeled off from the glass substrate was evaluated as B, and the evaluation of 5 or more pieces was C. The results are summarized in Table 1.

As shown in Table 1, in Example 1, the tape was not peeled off from the glass substrate, and the number of peeling was small, and there was no problem in practical use. Further, in Comparative Examples 1 and 2, a part or all of the tape was peeled off from the glass substrate, and it was found that it was not durable in practical use.

Further, the packaged articles of Example 1, Comparative Example 1, and Comparative Example 2 were allowed to stand in a freezer at a temperature of -5 ° C to -10 ° C for 200 hours, and then the same test was carried out. The same result can be obtained in Example 1. Further, in Comparative Example 1 and Comparative Example 2, the characteristics were better than those of the above test results shown in Table 1. This is considered to be because it is drier in the cold storage than at room temperature. However, the characteristics of Example 1 were further improved as compared with Comparative Example 1 and Comparative Example 2.

Industrial availability

The invention can be used to manufacture, supply, and store the tape.

1‧‧‧Drying container

2‧‧‧ Body Department

2a‧‧‧ (wall of body 2) wall

2b‧‧‧ (the body of the body 2)

2c‧‧‧ (one end of body 2)

3, 3a‧‧‧Flange

5, 5a‧‧‧ Sealing Department

7‧‧‧ Hole Department

21‧‧‧Next with reel

22‧‧‧Volume core

23‧‧‧1st side panel

23a‧‧‧ inside

23c‧‧ (outside the first side panel)

24‧‧‧2nd side panel

24a‧‧‧ inside

24c‧‧ (outside the second side panel)

25‧‧‧Axis hole

25a‧‧‧孔部

25b‧‧‧Long Hole Department

30‧‧‧Cylinder components

40‧‧‧ openings

80‧‧‧Package

81‧‧‧ insertion port

91‧‧‧Substrate

92‧‧‧ adhesive layer

H‧‧‧ Height

K‧‧‧ desiccant

R1, R2‧‧‧ outer diameter

T‧‧‧With

T‧‧‧thickness

W‧‧‧Width

1 is a view showing a desiccant accommodation according to an embodiment of the present invention. And a perspective view of the subsequent belt reel to which the desiccant container is applied.

Fig. 2 is a view showing a cross section taken along line II-II of Fig. 1;

3 is a view showing an example of an end belt wound around a reel for a belt.

Fig. 4 is an enlarged perspective view of the desiccant container shown in Fig. 1.

Figure 5 is a side elevational view of the desiccant container shown in Figure 4.

Fig. 6 is a cross-sectional view taken along line VI-VI of Fig. 4;

Fig. 7 is a view showing a package state of a reel for a tape to which a desiccant container is assembled.

Fig. 8 is an enlarged perspective view showing a desiccant container according to a modification.

Fig. 9 is an enlarged perspective view showing a desiccant container of another modification.

1‧‧‧Drying container

2‧‧‧ Body Department

3‧‧‧Flange

5‧‧‧ Sealing Department

21‧‧‧Next with reel

22‧‧‧Volume core

23‧‧‧1st side panel

24‧‧‧2nd side panel

25‧‧‧Axis hole

25a‧‧‧孔部

25b‧‧‧Long Hole Department

30‧‧‧Cylinder components

40‧‧‧ openings

T‧‧‧With

Claims (7)

A desiccant container for a belt reel, the reel reel comprising a winding core wound with a belt and a pair of side plates sandwiching the core, and arranged to be carried out a shaft hole through which a rotating shaft of a device for winding in or unwinding passes, the desiccant container characterized by comprising: a body portion formed to be received in the shaft hole and having a desiccant a hollow portion; and a flange portion provided on the body portion, and the body portion abuts against an outer side surface of the side plate when disposed in the shaft hole. The desiccant container according to claim 1, wherein the body portion has a circular cross section. The desiccant container according to claim 2, wherein the flange portion is provided in an annular shape around the entire circumference of the body portion in one end side of the body portion. The desiccant container according to claim 2, wherein the flange portion protrudes from a part of the body portion in one end side of the body portion. The desiccant container according to the third aspect of the invention, wherein the wall portion on the other end side of the body portion is provided with a plurality of holes communicating with the hollow portion. The desiccant container according to claim 5, wherein the hole portion is gradually narrowed from an outer side to an inner side of the wall portion. A tape reel which is obtained by assembling a desiccant container according to any one of claims 1 to 6 to the shaft hole.