Sticking method of adhesive film and winding reel of adhesive film
A technology of bonding film and reel, applied in the direction of winding strips, transportation and packaging, sending objects, etc., can solve the problems of winding deviation, film slipping and winding gaps, etc., to prevent winding gaps and winding offset effect
Active Publication Date: 2009-08-26
DEXERIALS CORP
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0006] In addition, when pulling out such a long film, the film slips, causing winding gaps or winding deviations.
Method used
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Embodiment
[0053] Examples and comparative examples are given below to specifically illustrate the present invention, but the present invention is not limited to the following examples.
[0054] In this example, as the anisotropic conductive adhesive film, a film formed by applying an anisotropic conductive adhesive with a thickness of 0.018 mm to a release sheet having a width of 2 mm in a film form was used.
[0055] The viscoelasticity of this anisotropic conductive adhesive film is 6×10 under the condition of the measuring needle PP20 in a temperature environment of 30°C 4 Pa·s.
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Abstract
The present invention provides a sticking method of an adhesive film in which adhesive does not stick out when a long adhesive film wound around a reel is pulled out and stuck, and gapping and off-core can be prevented. In the method for pulling out an adhesive film (2) wound around a reel (3) and sticking it to a sticking object (20), a cushion portion (16) is provided at the core section (15) of the reel (3). The cushion portion (16) is composed of a material having an expansion ratio in the range of 5-40. A cushion portion (16) having a thickness of 0.5-3 mm may be employed. An anisotropic film having viscoelasticity of 6x10 Pa s or less is suitable as the adhesive film (2).
Description
Technical field [0001] The present invention relates to a technique for winding or unwinding a series of long films such as an anisotropic conductive adhesive film on a reel in the manufacturing process of an electronic device, for example. Background technique [0002] Generally, when electrically connecting electronic components such as a liquid crystal panel and an IC chip, an anisotropic conductive adhesive film is used. [0003] Such an adhesive film is shipped in such a manner that it is formed on a narrow and long (long-size) release sheet and is wound on a reel member in a roll shape. [0004] In addition, in recent years, the adhesive film is expected to be further elongated. However, if the adhesive film is elongated, the diameter of the roll will increase, and the stress generated on the adhesive film will increase. Therefore, the adhesive in the adhesive film It may be exposed. [0005] In particular, when the adhesive film is pulled out after the reel is mounted on t...
Claims
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Patent Timeline
Login to view more IPC IPC(8): B65H75/02B65H75/18
CPCB65H35/0013B65H75/10B65H35/0073B65H19/28B65H75/28
Inventor 枝村和俊山崎丰司高桥芳浩
Owner DEXERIALS CORP
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