JP3028216U - Interlayer tape for embossed carrier tape and winding form of embossed carrier tape using the same - Google Patents

Abstract

(57) [Abstract] (Correction) [Problem] When winding the embossed carrier tape on a reel, it is possible to prevent fitting, adhesion, deformation, distortion and the like between the embossed portions, and use an electrically insulating tape. We provide an interlayer tape that diffuses and discharges static electricity even when wound on a reel, and can avoid the adsorption of dust and dirt in the atmosphere. SOLUTION: When an embossed carrier tape is wound on a reel, from a sheet-like object which is inserted on an opening surface of an embossed part of the carrier tape and has a width not larger than the width of the carrier tape and not smaller than a bottom width of the embossed part. An interlayer tape for embossed carrier tape and a winding form using the same.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to an inter-layer tape used when winding an embossed carrier tape for storing and carrying surface-mounted components such as various electronic parts and precision parts, and a winding form of the embossed carrier tape using the same. is there.

[0002]

[Prior art]

 The shape and dimensions of the embossed part of the embossed carrier tape are such that the opening surface length A1> the bottom surface length A0, as shown in FIG. The trapezoid has an inverted trapezoidal shape so that the opening width B1> the bottom surface width B0. However, in this shape, when the reels are stacked and wound up as shown in FIG. And the unwinding does not proceed smoothly, and the embossed portion is likely to be deformed and distorted. As a method of mitigating this as much as possible, it is practiced to make A1 or B1 in FIG. 2 as close as possible to A0 or B0. Regarding static electricity, if the parts that are stored in the embossed carrier tape are easily destroyed by static electricity, the embossed carrier tape itself is treated to prevent static electricity to secondarily prevent dust and dirt in the atmosphere. Although it can be done, no proactive measures were taken for parts that are less likely to be damaged by electrostatic discharge, and no measures were taken to manage the humidity of the entire space or to ground it.

[0003]

[Problems to be solved by the device]

 If the opening surface length A1 is forcibly approximated to A0 by the conventional molding method, for example, the thickness required for the press molding embossed carrier tape cannot be obtained, or the thickness becomes locally extremely thin and holes are formed. When assuming a situation where a force such as crushing is applied from the bottom side of the embossed part by stacking and winding the embossed carrier tape on the reel, there is a problem that the crush strength that the embossed part can withstand conveyance cannot be obtained. there were. If the embossed carrier tape is not subjected to antistatic treatment, dust and dirt in the atmosphere due to static electricity will be adsorbed by the embossed carrier tape and distributed on the surface, resulting in a peel strength when peeling the top tape from the embossed carrier tape. There were problems such as instability and the inclusion of foreign matter. The present invention solves these problems, and provides an interlayer tape that prevents the embossed parts of the embossed carrier tape from fitting, adhering, deforming, or distorting even when the embossing carrier tape is wound on a reel. Is what you are trying to do.

[0004]

[Means for Solving the Problems]

 In order to solve such a problem, the present invention has found that when winding the embossed carrier tape on a reel, it is only necessary to insert an interlayer tape between the overlapping embossed portions, and established various conditions to establish the present invention. It is a completed product, and its gist is that it is inserted on the opening surface of the embossing part of the carrier tape when the embossing carrier tape is wound on the reel, and has a width not more than the width of the carrier tape and not less than the bottom width of the embossing part. An interlayer tape for an embossed carrier tape, characterized by comprising a sheet-like material, and an embossed carrier tape winding form using the same.

Hereinafter, the present invention will be described in detail. FIG. 1 shows an embodiment of an interlayer tape for embossed carrier tape according to the present invention. First, the interlayer tape 1 and the embossed carrier tape 2 are adhered to the core portion 4 of the take-up reel 3 with the stop tape 5. Next, the take-up reel 3 is continuously rotated in the rotation direction 6, and at the same time, the interlayer tape 1 of the present invention is inserted between the overlapping embossed carrier tapes 2 so as to fit along the opening surface of the embossed portion 9. . The interlayer tape may be in the form of a sheet, for example, paper such as wrapping paper, glassine paper, tissue paper, non-woven fabric, synthetic paper, or polyethylene, polystyrene, polyvinylidene chloride, polyvinyl chloride, polyester, etc. It is a plastic film. The thickness of the inter-layer tape depends on the material used, but is generally 30 to 60 μm for papers and 9 to 25 μm for plastic films for handling. The width dimension 7 (see Fig. 1) of the interlayer tape should be the same as the width dimension 8 of the embossed carrier tape in order to sufficiently improve the fitting / adhesion prevention effect of the embossed portion, but at least the bottom width of the embossed portion. The above is sufficient. As the width of the embossed carrier tape increases, the width of the inter-layer tape can be saved, depending on the width of the opening surface of the embossed part, but if the dimensions in Table 1 are adopted, the fitting and adhesion of the embossed parts will be prevented. it can. When the embossed portions of the embossed carrier tape are arranged in a plurality of rows such as spiral winding, the width of the interlayer tape may be set to be multiple times.

[0006]

[Table 1]

This interlayer tape may be subjected to antistatic treatment if necessary, and the antistatic treatment of the interlayer tape is performed on various kinds of cationic, anionic, nonionic or amphoteric for both papers and plastic films. By applying a surface active agent such as alkyl quaternary ammonium salt, polyoxyethylene alkyl ether, fatty acid glycerin ester, etc., the surface resistance level can be made to be in the order of 10 ⁸ Ω to 10 ¹¹ Ω. Can diffuse static electricity. The antistatic treatment can be performed on the order of 10 ⁶ Ω to 10 ⁸ Ω by applying a metal-based oxide such as tin oxide, indium oxide, or zinc oxide to both papers and plastic films. Of course, it is preferable to treat both surfaces of the interlayer tape in order to maximize the electrostatic diffusion and discharge effects. In addition, considering the usage method after this treatment, it is a quality problem that the applied material adheres to the embossed carrier tape after transfer and detachment. Therefore, the treated material should be dried and cured. It is necessary and also has sufficient adhesive strength so that it does not come off even when wound on a reel.

[0008]

[Embodiment of device]

 The function of the present invention is to prevent the occurrence of deformation and distortion by eliminating the fitting / adhesion of the upper and lower embossed parts of the embossed carrier tape which overlap each other by using the interlayer tape, and also to perform the antistatic treatment of the interlayer tape. This also prevents dust and dirt from adhering.

[0009]

【Example】

 Hereinafter, the embodiments of the present invention will be specifically described with reference to examples, but the present invention is not limited thereto. (Example 1) A single-row polystyrene embossed carrier tape made of an insulating material with a width of 32 mm, using a biaxially stretched polyester film (emblet, a product name of Unitika Ltd.) having a width of 20 mm and a thickness of 9 μm as an interlayer tape. Was wound on a reel with a 200m interlayer tape sandwiched at a single row speed of 60rpm. Next, when the embossed carrier tape wound on the reel was rewound while peeling off the interlayer tape at a speed of 60 rpm, all the embossed parts were smoothly peeled off, and neither deformation nor distortion was observed.

Example 2 A biaxially stretched polyester film having a width of 20 mm and a thickness of 9 μm (Emblet, a brand name manufactured by Unitika Ltd.) as an interlayer tape, and polyvinyl butyral (PVB) as a binder resin contains antimony. A coating [manufactured by Sumitomo Cement Co., Ltd.] containing ultrafine particles of tin oxide as a conductive material was gravure coated on both sides of the film. The surface resistance of the obtained interlayer tape was ^{2 × 10 7 Ω~5 × 10 7} Ω. The embossed carrier tape has a width of 32 mm and is made of polystyrene, which is an insulating material. It is 200 m at a speed of 60 rpm in a single row. It did not adsorb the polystyrene powder material placed around it. Next, when the embossed carrier tape wound on the reel was rewound at a speed of 60 rpm while separating the inter-layer tape, all embossed parts were peeled off smoothly, and neither deformation nor distortion was observed.

Comparative Example When the material was wound under the same materials and conditions as in Example except that the interlayer tape was not inserted, the charging pressure was 2000 V or more, and the polystyrene powder material was also adsorbed. Next, when the embossed carrier tape wound on the reel was rewound at a speed of 60 rpm while separating the interlayer tape, it became difficult to peel off a part of the embossed portion, and even if the speed was reduced by 50%, the mated tape was peeled off. It became impossible, and deformation and distortion occurred.

[0012]

[Effect of device]

 By using the inter-layer tape for embossed carrier tape of the present invention, it is possible to prevent the fitting and adhesion of overlapping embossed parts and prevent the deformation due to the fitting and adhesion. In addition, even if static electricity is generated due to the insulating material, static electricity can be diffused and discharged by applying antistatic treatment to the interlayer tape, and dust and dirt can be prevented from adhering.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of an interlayer tape for embossed carrier tape of the present invention.

FIG. 2 is a schematic view and a sectional view of an embossed carrier tape. (A) Overview perspective view, (b) AA line sectional view, (c) B-
B line sectional drawing.

FIG. 3 is an explanatory diagram showing a fitted state of an embossed portion when wound on a reel. (A) Overall view of the reel, (b) Partly enlarged view.

[Explanation of symbols]

1 embossed carrier tape interlayer tape 2 embossed carrier tape 3 take-up reel, 4 take-up reel core 5 adhesive tape 6 rotation direction of take-up reel 7 embossed carrier tape width 8 embossed carrier tape interlayer tape width 9 embossed part

Claims (2)

[Scope of utility model registration request] 1. A sheet-like material which is inserted into an opening surface of an embossed portion of the carrier tape when the embossed carrier tape is wound on a reel and has a width not larger than a width of the carrier tape and not smaller than a bottom width of the embossed portion. An interlayer tape for an embossed carrier tape, which comprises: 2. A winding form of an embossed carrier tape, wherein the embossed carrier tape is wound on a reel, and an interlayer tape is sandwiched between the carrier tapes.