KR101909300B1 - Reel body and process for production of reel body - Google Patents

Abstract

Thereby preventing the occurrence of blocking in the reel. An anisotropic conductive film 3 in which a resin layer 32 is formed on a release substrate 31, a winding section 21 for winding an anisotropic conductive film and a flange 22 formed on both sides of the winding section 21 The anisotropic conductive film 3 is wound around the winding section 21 and is disposed in a region formed by the winding section 21 and the flange 22. The anisotropic conductive film 3 is wound around the peeling base material 31, One end 31a of the width direction W along the longitudinal direction L is provided with a protrusion 31c protruding from one end 32a of the width direction W along the longitudinal direction L of the resin layer 32 And the protruding portion 31c is in contact with the flange 22. As shown in Fig.

Description

TECHNICAL FIELD [0001] The present invention relates to a method for manufacturing a reel and a reel,

The present invention relates to a method for producing a reel and a reel in which an adhesive film on which a resin layer is formed on a release substrate is wound on a reel. The present application claims priority based on Japanese Patent Application No. 2010-287243 filed on December 24, 2010 in Japan, which is hereby incorporated by reference in its entirety.

Anisotropic Conductive Film (ACF: Anisotropic Conductive Film) is widely used for applications such as a flat panel display, for example, flat panel displays and the like in terms of high definition, narrow frame, shortening of tact time, And it is becoming longer and lengthened.

Such an anisotropic conductive film is used, for example, as a reel wound on a reel having a flange. In this reel, a recoil of the anisotropic conductive film wrapped around the reel expands and shrinks in accordance with the temperature condition, and the recoil shrinkage of the recommended body of the anisotropic conductive film occurs. As a result, the resin layer (adhesive component) of the anisotropic conductive film flows out from one end in the width direction along the longitudinal direction of the resin layer, and is discharged from the side surface of the release substrate. The resin layer in the anisotropic conductive film adheres to the side surface of the flange of the reel and the anisotropic conductive film can not be normally taken out (hereinafter referred to as " blocking " ).

Patent Document 1 describes a film structure of an anisotropic conductive film in which a resin layer is disposed at the center of a release substrate. However, in a reel in which such an anisotropic conductive film is wound on a reel, if the rewinding shrinkage occurs in the body of the anisotropic conductive film, the resin layer flows outward beyond one end in the width direction along the longitudinal direction of the resin layer, And is discharged from the side surface of the substrate. As a result, the above-described blocking occurs.

Japanese Patent Application Laid-Open No. 2003-142176

The present invention has been proposed in view of such conventional circumstances, and an object of the present invention is to provide a method of manufacturing a reel and a reel that can prevent the occurrence of blocking.

The reel according to the present invention comprises an adhesive film on which a resin layer is formed on a release substrate, a winding portion for winding the adhesive film, and a reel having a flange formed on both sides of the winding portion, And the peeling base member has a protrusion portion whose one end in the width direction along the longitudinal direction protrudes from one end in the width direction along the longitudinal direction of the resin layer, It is in contact with the flange.

A method for producing a reel in accordance with the present invention is a method for producing a reel by winding an adhesive film on which a resin layer is formed on a release substrate on a reel having a winding portion and a flange formed on both sides of the winding portion, One end of the substrate in the width direction along the longitudinal direction has a protrusion protruding from one end in the width direction along the length direction of the resin layer and winds the adhesive film on the winding section in a state where the protrusion is in contact with the flange.

According to the present invention, when the resin film wound around the reel is wound and shrunk to cause the resin layer to flow outward beyond one end in the width direction along the longitudinal direction of the resin layer, The occurrence of blocking can be prevented.

1 is a perspective view showing a configuration example of a reel.
2 is a side view showing a configuration example of a reel.
3 is a cross-sectional view showing a configuration example of an adhesive film in a reel.
4 is a cross-sectional view showing a structural example of an adhesive film of a reel according to another embodiment.
5 is a cross-sectional view showing an anisotropic conductive film of a reel.

Hereinafter, a specific embodiment of the present invention (hereinafter referred to as " present embodiment ") will be described in the following order with reference to the drawings.

1. Reel

2. Manufacturing method of reel

3. Modification of Reel

4. Example

<1. Reliance>

1 is a perspective view showing a configuration example of a reel body 1 according to the present embodiment. Fig. 2 is a side view showing a configuration example of the reel body 1. Fig. The reel 1 is provided with a reel 2 and an anisotropic conductive film (adhesive film) 3 wound on the reel 2.

The reel 2 is provided with a normal winding section 21 and a pair of plate flanges 22a and 22b (hereinafter also referred to simply as &quot; flange 22 &quot;) formed at both ends of the winding section 21 Respectively. The winding section 21 has a shaft hole 21a into which a rotating shaft for rotating the reel 2 is inserted. One end in the longitudinal direction of the anisotropic conductive film 3 is connected to the winding section 21, and the anisotropic conductive film 3 is wound. The winding portion 21 and the flange 22 can be formed using, for example, various kinds of plastic materials. The flange 22 may be subjected to electrostatic treatment on the surface in contact with the anisotropic conductive film 3. As a method of performing the electrostatic treatment, for example, a method of applying a compound such as polythiophene to the flange 22 can be mentioned.

3 is a cross-sectional view showing a configuration example of the anisotropic conductive film 3. Fig. The anisotropic conductive film 3 has a peeling base material 31 and a resin layer 32 formed on the peeling base material 31. The anisotropic conductive film 3 is formed in the form of a tape and wound around the takeup portion 21 sandwiched between the flanges 22a and 22b so that the peeling base 31 is in the outer peripheral side, And is disposed in an area formed by the winding section 21 and the flange 22.

The release substrate 31 is formed, for example, in the form of a tape coated with a release agent such as silicone. The peeling base material 31 prevents drying of the anisotropic conductive film 3 and maintains the shape of the anisotropic conductive film 3. Examples of the substrate used for the release substrate 31 include PET (Poly Ethylene Terephthalate), OPP (Oriented Polypropylene), PMP (Poly-4-methylpentene-1) and PTFE (Polytetrafluoroethylene).

The resin layer 32 formed on the release substrate 31 is made of, for example, an adhesive composition and contains an adhesive component 33 and conductive particles 34 as shown in Fig. As the adhesive component (33), for example, a material showing curability by heat or light can be used. In particular, it is preferable to use a crosslinkable material such as a thermosetting resin as the adhesive component 33 because it has excellent heat resistance and moisture resistance after connection. The thermosetting resin is not particularly limited as long as it has fluidity at room temperature, and examples thereof include epoxy resins. Epoxy adhesives containing an epoxy resin as a main component as a thermosetting resin are preferable because they can be cured in a short time and have good connection workability and excellent adhesiveness.

Examples of the epoxy resin include, but are not limited to, naphthalene type epoxy resin, biphenyl type epoxy resin, phenol novolak type epoxy resin, bisphenol type epoxy resin, steel type epoxy resin, triphenolmethane type epoxy resin, phenol Aralkyl type epoxy resins, naphthol type epoxy resins, dicyclopentadiene type epoxy resins, and triphenylmethane type epoxy resins. The epoxy resins may be used alone or in combination of two or more.

As the conductive particles 34, known conductive particles used in the anisotropic conductive film 3 can be used. For example, the surface of particles of various metals or metal alloys such as nickel, iron, copper, aluminum, tin, lead, chromium, cobalt, silver and gold, metal oxide, carbon, graphite, glass, A metal coated with a metal, and a coating of an insulating thin film on the surface of these particles. When the surface of the resin particle is coated with a metal, examples of the resin particle include an epoxy resin, a phenol resin, an acrylic resin, an acrylonitrile · styrene (AS) resin, a benzoguanamine resin, a divinylbenzene resin Resin, styrene resin or the like is preferably used.

In the reel 1 having the reel 2 and the anisotropic conductive film 3 as described above, the thickness D of the peelable base material 31 is set so that the adhesive component of the resin layer 32 to be used, The type of water, and the like. For example, the thickness of the peeling base material 31 is preferably 30 to 80 占 퐉. If the thickness of the release substrate 31 is less than 30 占 퐉, the release substrate 31 may be stretched when the anisotropic conductive film 3 is firmly pulled out, and the anisotropic conductive film 3 having an appropriate length may be stretched It may not be possible to attach the optical fiber to the optical fiber. If the thickness of the peeling base material 31 exceeds 80 탆, the resin layer 32 tends to come out due to the influence of elongation and contraction of the peeling base material 31 due to a change in temperature conditions during storage and use of the reeling material 1 Or the resin layer 32 may fall off when the anisotropic conductive film 3 is taken out, which is not preferable.

1 and 3, in the anisotropic conductive film 3, one end 31a of the peeling base material 31 in the width direction W along the longitudinal direction L thereof is in contact with the resin layer 31, And has a protrusion 31c protruding from one end 32a in the width direction W along the longitudinal direction L of the protrusion 32. [ The projecting portion 31c is in contact with the inner surface of the flange 22 of the reel 2. [ As a result, the resin layer 32 is stretched outward beyond one end 32a in the width direction W along the longitudinal direction L of the resin layer 32 due to the wrapping shrinkage occurring in the recommended body of the anisotropic conductive film 3, The flowing resin layer 32 is supported by the protruding portion 31c of the peeling base material 31. In this case, Therefore, in the reel body 1, the occurrence of blocking can be prevented.

The shape of the protruding portion 31c of the release base material 31 is not limited to the shape shown in Figs. 3B, 3C, and 3F, for example, 3 (D), and 3 (E), as shown in FIG.

The reel 1 is provided between one end 31a in the width direction W of the release substrate 31 and one end 32a in the width direction W along the length direction L of the resin layer 32 (Hereinafter, referred to as &quot; protrusion width A of the release substrate &quot;) and the thickness D of the release substrate 31 satisfy the following formula (1).

0 &lt; protrusion width A of the release substrate 31? Thickness D of the release substrate 31 (1)

The projecting width A of the release substrate 31 is set to be larger than 0 so that the resin layer 32 flows outside the one end 32a of the resin layer 32 in the width direction W The flow of the resin layer 32 is supported by the projecting portion 31c of the peeling base 31, so that the occurrence of blocking can be prevented. By setting the projecting width A of the peeling base material 31 to be equal to or less than the thickness D of the peeling base material 31, the projecting portion 31c of the peeling base material 31 is placed on the flange 22 of the reel 2 Thereby preventing the anisotropic conductive film 3 from being bent. This makes it possible to prevent the resin layer 32 from being released from the one end 31a of the peeling base 31 because the force applied by the recommended body of the anisotropic conductive film 3 becomes uneven. Therefore, in the reel 1, occurrence of blocking can be reliably prevented.

The reel 1 has a value obtained by dividing the thickness D of the release substrate 31 by the protrusion width A of the release substrate 31, that is, the value obtained by dividing the thickness D of the release substrate 31 / (Protrusion width A of the protrusion 31) satisfies the following formula (2).

1.0? (Thickness (D) of the release substrate (31) / protrusion width (A) of the release substrate (31)

The protrusion 31c of the release substrate 31 can be prevented from being damaged by the reel (1) by setting the thickness (D of the release substrate 31 / the protrusion width A of the release substrate 31) 2 on the flange 22 to prevent the anisotropic conductive film 3 from being bent. This makes it possible to prevent the resin layer 32 from spreading out from the one end 31a of the peeling base 31 because the anisotropic conductive film 3 is not uniformly applied with the force applied thereto, Occurrence of blocking can be reliably prevented. In the reel 1, when the thickness (D of the release substrate 31 / the protrusion width A of the release substrate 31) is 8.0 or less, the resin layer 32 is released Blocking can be prevented.

As described above, in the reel 1, one end 31a of the peeling base material 31 in the width direction W along the longitudinal direction L thereof is positioned in the longitudinal direction L of the resin layer 32, And protruding portions 31c protruding from one end 32a of the width direction W along the width direction W. [ In the peeling base material 31, the projecting portion 31c is in contact with the flange 22. As a result, the reel 1 is wound and shrunk in the recommended body of the anisotropic conductive film 3, and is wound outward beyond one end 32a of the width direction W along the longitudinal direction L of the resin layer 32 When the resin layer 32 flows, the flowing resin layer 32 is supported by the projecting portion 31c of the peeling base 31. [ Therefore, in the reel body 1, the occurrence of blocking can be prevented.

<2. Method for preparing reel>

Next, an example of a manufacturing method of the above-mentioned reel 1 will be described. The anisotropic conductive film 3 is wound around the winding section 21 in a state in which the protruding section 31c of the release substrate 31 is in contact with the flange 22. In this way,

For example, first, the conductive particles 34 are dispersed in an adhesive composed of an epoxy resin and a curing agent to prepare an adhesive to be the resin layer 32. [ The produced adhesive is applied on the release substrate 31 coated with the release agent so as to have a predetermined thickness to prepare an anisotropic conductive film 3 having the resin layer 32 formed on the release substrate 31. The produced anisotropic conductive film 3 is cut so as to satisfy the above-described equations (1) and (2). The cut anisotropic conductive film 3 is wound around the winding portion 21 while the protruding portion 31c of the release base 31 comes into contact with the inner surface of the flange 22. In this way, the reel 1 can be produced.

The anisotropic conductive film 3 is wound around the winding section 21 in a state in which one end 31a of the release substrate 31 is in contact with the flange 22 in the manufacturing method of the reel body 1. As a result, one end 31a of the release substrate 31 is supported on the inner surface of the flange 22 when the anisotropic conductive film 3 is wound around the reel 2, Can be prevented.

The other end 31b in the width direction W along the longitudinal direction L of the release substrate 31 and the other end 31b in the longitudinal direction L of the resin layer 32 And the other end 31b of the release substrate 31 and the other end 32b of the resin layer 32 are in contact with the inner surface of the flange 22 It is preferable to wind the anisotropic conductive film 3 around the winding section 21. [ The other end 31b of the release substrate 31 and the other end 32b of the resin layer 32 are supported on the inner surface of the flange 22 when the anisotropic conductive film 3 is wound around the reel 2, It is possible to more reliably prevent the anisotropic conductive film 3 from being shifted and wound.

In the reel 1, when the overlapping width of the peeling base material 31 and the resin layer 32 is narrow by preventing the occurrence of shifted winding of the anisotropic conductive film 3, It is possible to prevent blocking caused by applying a strong force.

In the reel 1 described above, the resin layer 32 of the anisotropic conductive film 3 is stretched (stretched) in a cycle of refrigeration and normal temperature, for example, during manufacture, storage, use The occurrence of blocking can be prevented even if the winding shrinkage occurs.

For example, when the resin layer 32 of the anisotropic conductive film 3 is made of a thermosetting resin, it is necessary to store the anisotropic conductive film 3 at 5 DEG C or less. When the anisotropic conductive film 3 is stored at 5 DEG C or lower in this way, the peeling base material 31 shrinks and the resin layer 32 ) May be ejected.

On the other hand, according to the reel 1, since the resin layer 32 that has been evacuated is supported by the projecting portion 31c of the peeling base material 31, it is possible to prevent the occurrence of blocking in the anisotropic conductive film 3 have. Therefore, the reel body 1 can normally take out the anisotropic conductive film 3 from the reel 2 even when it is stored in an atmosphere of 5 DEG C or less.

Further, for example, when the reel 1 is used under a high-temperature condition (for example, 30 ° C or higher), the resin layer 32 tends to come out to the side. However, in the reel 1, since the resin layer 32 that has been evacuated is supported by the protruding portion 31c of the peeling base material 31, the occurrence of blocking in the anisotropic conductive film 3 can be prevented . Therefore, the reel body 1 can normally take out the anisotropic conductive film 3 from the reel 2 even when used under high temperature conditions.

<3. Modification of reel body>

Although the anisotropic conductive film 3 is used in the reel 1 in the above description, the present invention is not limited to this example. For example, an adhesive film containing no conductive particles 34, for example, An insulating adhesive film such as NCF (Non Conductive Film) may be used.

In the above description, the anisotropic conductive film 3 in which the resin layer 32 is formed on the release substrate 31 has been described. However, the present invention is not limited to this example, and both surfaces of the anisotropic conductive film 3 may be peeled off Or may be sandwiched between the substrates 31. [

4 is a cross-sectional view showing a configuration example of an anisotropic conductive film 3A according to another embodiment. The anisotropic conductive film 3A is coated with the resin layer 32 on the release substrate 31 and the release substrate 35 is further disposed on the resin layer 32. [ As the peeling base material 35, for example, one having the same constitution as the peeling base material 31, that is, one having a protruding portion 35c which is the same as the protruding portion 31c can be used. In the anisotropic conductive film 3A, the peeling base material 35 and the peeling base material 31 can be easily peeled from each other in the range satisfying the above-described equations (1) and (2) The shape of the projecting portion of the peeling base material, and the projecting width of the peeling base material may be changed. In the anisotropic conductive film 3A shown in Fig. 4, the same components as those of the above-described anisotropic conductive film 3 are denoted by the same reference numerals, and a detailed description thereof will be omitted.

Example

Hereinafter, a specific embodiment of the present invention will be described. The scope of the present invention is not limited by the following examples.

(Example 1)

In Example 1, conductive particles were first dispersed in an amount of 4 wt% in an adhesive composed of 40 wt% of solid epoxy resin, 15 wt% of liquid epoxy resin, 1 wt% of silane coupling agent and 40 wt% of curing agent.

- Solid epoxy resin (product name: EP1003, manufactured by Japan Epoxy Resin Co., Ltd.)

Liquid epoxy resin (product name: EP828, manufactured by Japan Epoxy Resin Co., Ltd.)

Silane coupling agent (trade name: KBE-403, manufactured by Shin-Etsu Chemical Co., Ltd.)

ㆍ Curing agent (Nova Cure HX3941, manufactured by Asahi Chemical Industry Co., Ltd.)

- Conductive particles (trade name: AUL704, manufactured by Sekisui Chemical Co., Ltd.)

The adhesive agent in which the conductive particles were dispersed was coated on the heavy release surface of the release sheet having a thickness of 53 탆 coated with the silicone release agent having different peel strength on both sides of the PET substrate so as to have a thickness of 18 탆, m long anisotropic conductive film on the sheet was wound.

The resultant anisotropic conductive film was applied to one end of the width direction W of the release sheet with a width of 1.5 mm and one end width in the width direction W along the length direction L of the resin layer ) Was slit so that the thickness (A) was 7 占 퐉. Fig. 5 (A) is a cross-sectional view showing the anisotropic conductive film obtained in Example 1. Fig. The cross-sectional shape of the anisotropic conductive film was observed with a metal microscope (product number: BX61, manufactured by Olympus Corporation). The slit anisotropic conductive film was wound in a state in which the protruding portion of the release sheet was in contact with the flange surface of the reel.

(Example 2)

5 (B) is a cross-sectional view showing the anisotropic conductive film obtained in Example 2. Fig. In Example 2, as shown in Fig. 5 (B), the thickness of the release sheet in the anisotropic conductive film was 53 占 퐉, and the protrusion width A of the release sheet was 11 占 퐉. In the same manner, an anisotropic conductive film having a width of 1.5 mm and a length of 300 m was obtained.

(Example 3)

5 (C) is a cross-sectional view showing the anisotropic conductive film obtained in Example 3. Fig. In Example 3, as shown in Fig. 5 (C), except that the thickness of the release sheet in the anisotropic conductive film was 53 占 퐉 and the projecting width A of the release sheet was 19 占 퐉, In the same manner, an anisotropic conductive film having a width of 1.5 mm and a length of 300 m was obtained.

(Example 4)

5 (D) is a cross-sectional view showing the anisotropic conductive film obtained in Example 4. Fig. In Example 4, except that the thickness of the release sheet in the anisotropic conductive film was 38 占 퐉 and the projecting width A of the release sheet was 21 占 퐉, as shown in Fig. 5 (D) In the same manner, an anisotropic conductive film having a width of 1.5 mm and a length of 300 m was obtained.

(Example 5)

5 (E) is a cross-sectional view showing the anisotropic conductive film obtained in Example 5. Fig. In Example 5, except that the thickness of the release sheet in the anisotropic conductive film was 53 占 퐉 and the projecting width (A) of the release sheet was 53 占 퐉, as shown in Fig. 5 (E) In the same manner, an anisotropic conductive film having a width of 1.5 mm and a length of 300 m was obtained.

(Example 6)

5 (F) is a cross-sectional view showing the anisotropic conductive film obtained in Example 6. Fig. In Example 6, as shown in Fig. 5 (F), except that the thickness of the release sheet in the anisotropic conductive film was 78 占 퐉 and the projected width A of the release sheet was 38 占 퐉, In the same manner, an anisotropic conductive film having a width of 1.5 mm and a length of 300 m was obtained.

(Comparative Example 1)

5 (G) is a cross-sectional view showing the anisotropic conductive film obtained in Comparative Example 1. Fig. Comparative Example 1 was the same as Example 1 except that the thickness of the release sheet in the anisotropic conductive film was 53 占 퐉 and the projected width A of the release sheet was 0 占 퐉 as shown in Fig. In the same manner, an anisotropic conductive film having a width of 1.5 mm and a length of 300 m was obtained.

(Comparative Example 2)

5 (H) is a cross-sectional view showing the anisotropic conductive film obtained in Comparative Example 2. Fig. In Comparative Example 2, as shown in Fig. 5 (H), the thickness of the release sheet in the anisotropic conductive film was 53 탆, and the protrusion width A of the release sheet was 74 탆. In the same manner, an anisotropic conductive film having a width of 1.5 mm and a length of 300 m was obtained.

Table 1 shows production conditions and evaluation results in Examples 1 to 6, Comparative Examples 1 and 2.

(Evaluation of whether or not blocking occurs)

The occurrence of blocking of the anisotropic conductive films obtained in Examples 1 to 6 and Comparative Examples 1 and 2 was carried out as follows. That is, a weight of 50 g was suspended on the withdrawing end portion of the anisotropic conductive film, and the reel was allowed to stand under the environment of 35 ° C for 24 hours. Then, all of the anisotropic conductive film was taken out for 300 m to evaluate the occurrence of blocking. Table 1 shows the evaluation results of the presence / absence of blocking. In Table 1, &quot; Blocking &quot; indicates that no occurrence of blocking was visually observed. Blocking &quot; x &quot; means that the occurrence of blocking is visually observed. As shown in Table 1, in Examples 1 to 6, the evaluation of blocking was &quot;? &Quot;. On the other hand, in Comparative Example 1 and Comparative Example 2, the evaluation of blocking was "x".

In Comparative Example 1, since the protrusion width A of the release sheet did not satisfy the above-described expressions (1) and (2), blocking occurred, and at the point where the anisotropic conductive film was taken out about 280 m, The anisotropic conductive film was peeled off from the release sheet. In Comparative Example 2, since the projecting width A of the anisotropic release sheet does not satisfy the above-described expressions (1) and (2), when the anisotropic conductive film is wound around the reel, The projecting portion of the peeling sheet sank up, and the anisotropic conductive film was warped. As a result, the application of the force to the recommended body of the anisotropic conductive film became uneven, and the resin layer came out from one end of the release sheet, resulting in blocking.

On the other hand, in Examples 1 to 6, the protrusion width A of the release sheet of the anisotropic conductive film satisfied the above-described expressions (1) and (2). As a result, the resin layer of the anisotropic conductive film which was compressed by the winding and shrinking of the reel and came out from the side surface of the release sheet was supported by the protrusion of the release sheet, and the occurrence of blocking could be prevented.

Claims (9)

An adhesive film formed by forming a resin layer on a release substrate,
And a reel having a flange formed on both sides of the winding portion,
Wherein the adhesive film is wound on the winding portion and disposed in a region formed by the winding portion and the flange,
Wherein the peeling base has one end in the width direction along the longitudinal direction and a protrusion protruding from one end in the width direction along the longitudinal direction of the resin layer, the protrusion being in contact with the flange,
Wherein the adhesive film has the other end in the width direction along the longitudinal direction of the release substrate and the other end in the width direction along the longitudinal direction of the resin layer. The method according to claim 1,
When the width between one end in the width direction along the longitudinal direction of the resin layer and one end in the width direction along the longitudinal direction of the release layer is A and the thickness of the release substrate is D, , Reel. The method according to claim 1,
(Thickness of the release substrate) / (protrusion width of the release substrate) is 1.0 to 8.0. The method according to claim 1,
And the thickness of the release substrate is 30 to 80 탆. An adhesive film formed by forming a resin layer on a release substrate,
And a reel having a flange formed on both sides of the winding portion,
Wherein the adhesive film is wound on the winding portion and disposed in a region formed by the winding portion and the flange,
Wherein the peeling base has one end in the width direction along the longitudinal direction and a protrusion protruding from one end in the width direction along the longitudinal direction of the resin layer, the protrusion being in contact with the flange,
Wherein the adhesive film is formed such that the other end in the width direction along the longitudinal direction of the release substrate and the other end in the width direction along the longitudinal direction of the resin layer coincide with each other and the other end of the release substrate and the other end of the resin layer Reel tangent to flange. 6. The method according to any one of claims 1 to 5,
Wherein the adhesive film is an anisotropic conductive film in which a resin layer containing conductive particles is laminated on a release substrate. A method for producing a reel body in which an adhesive film on which a resin layer is formed on a release substrate is wound on a reel having a winding portion and a flange formed on both sides of the winding portion,
One end of the peeling base material in the width direction along the longitudinal direction has a protrusion protruding from one end in the width direction along the longitudinal direction of the resin layer,
Wherein the adhesive film has the other end in the width direction along the longitudinal direction of the release substrate and the other end in the width direction along the longitudinal direction of the resin layer,
And the adhesive film is wound around the winding portion in a state in which the projecting portion is in contact with the flange. A method for producing a reel body in which an adhesive film on which a resin layer is formed on a release substrate is wound on a reel having a winding portion and a flange formed on both sides of the winding portion,
One end of the peeling base material in the width direction along the longitudinal direction has a protrusion protruding from one end in the width direction along the longitudinal direction of the resin layer,
Wherein the adhesive film has the other end in the width direction along the longitudinal direction of the release substrate and the other end in the width direction along the longitudinal direction of the resin layer,
And the adhesive film is wound on the winding portion in a state in which the protruding portion is in contact with the flange and the other end of the peeling base material and the other end of the resin layer are in contact with the flange. 9. The method according to claim 7 or 8,
Wherein the adhesive film is an anisotropic conductive film in which a resin layer containing conductive particles is laminated on the release substrate.

Images