JP5997972B2 - Solar cell fixing tape - Google Patents

Solar cell fixing tape Download PDF

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JP5997972B2
JP5997972B2 JP2012176923A JP2012176923A JP5997972B2 JP 5997972 B2 JP5997972 B2 JP 5997972B2 JP 2012176923 A JP2012176923 A JP 2012176923A JP 2012176923 A JP2012176923 A JP 2012176923A JP 5997972 B2 JP5997972 B2 JP 5997972B2
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tape
solar cell
release
sealing material
adhesive
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JP2014034648A (en
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斉 杉山
斉 杉山
しのぶ 日高
しのぶ 日高
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CI Kasei Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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Description

本発明は、太陽電池モジュール作製の際に互いに隣接する太陽電池セル同士を固定するために用いられる固定用テープに関する。   The present invention relates to a fixing tape used for fixing solar cells adjacent to each other when manufacturing a solar cell module.

近年、環境問題への関心の高まりに伴い、太陽電池モジュールを用いた太陽光発電の普及が急速に拡大している。太陽電池モジュールとしては、発電素子である複数の太陽電池セルが電気的に接続された状態で一対のシート状の封止材に挟持され、さらにこれらが保護材としてのガラス板とバックシートに挟持されたものが広く用いられている（例えば、特許文献１参照）。
上記太陽電池モジュールは、通常、ガラス板に、封止材、太陽電池セル、封止材、バックシートを順次積層して製造される。太陽電池セルは一対の封止材の間に複数並べられており、互いに隣接する太陽電池セル同士はその間隔を一定にするために、基材の一方の面に粘着剤層が設けられた粘着テープで固定されている（特許文献２，３）。 In recent years, with the growing interest in environmental issues, the spread of solar power generation using solar cell modules is rapidly expanding. The solar cell module is sandwiched between a pair of sheet-shaped sealing materials in a state where a plurality of solar cells as power generation elements are electrically connected, and these are further sandwiched between a glass plate and a back sheet as a protective material. Is widely used (see, for example, Patent Document 1).
The solar cell module is usually manufactured by sequentially laminating a sealing material, solar cells, a sealing material, and a back sheet on a glass plate. A plurality of solar cells are arranged between a pair of sealing materials, and in order to make the spacing between adjacent solar cells constant, a pressure-sensitive adhesive layer is provided on one surface of the substrate. It is fixed with a tape (Patent Documents 2 and 3).

特開２０００−１７４２９６号公報JP 2000-174296 A 特開２００３−３２４２１１号公報JP 2003-324 211 A 特開２０１１−３２４４９号公報JP 2011-32449 A

ところで、粘着テープにおいては、粘着剤層の露出面を、基材の粘着剤層が設けられていない面に貼着しながら巻き回してロール状とし、そのロールの状態で流通、使用するのが一般的である。
しかしながら、上記のように巻き回された粘着テープを用いて太陽電池セルを固定した場合には、太陽電池モジュール作製時のラミネート工程にて、テープと封止材との間にガスが溜まって膨張することがあった（以下、その膨張のことを「インフレーション」という。）。インフレーションが起こると、太陽電池モジュールの外観が損なわれ、また、封止材による封止性が低下する傾向にある。
本発明は、太陽電池モジュール作製時のインフレーションを防止できる太陽電池セル固定用テープを提供することを目的とする。 By the way, in the pressure-sensitive adhesive tape, the exposed surface of the pressure-sensitive adhesive layer is wound while sticking to the surface where the pressure-sensitive adhesive layer of the base material is not provided to form a roll, and is distributed and used in the state of the roll. It is common.
However, when the solar battery cell is fixed using the adhesive tape wound as described above, gas is accumulated between the tape and the sealing material in the laminating process at the time of manufacturing the solar battery module and expands. (Hereafter, this expansion is called “inflation”). When inflation occurs, the appearance of the solar cell module is impaired, and the sealing performance by the sealing material tends to be reduced.
An object of this invention is to provide the photovoltaic cell fixing tape which can prevent the inflation at the time of solar cell module preparation.

本発明者らは、粘着テープの粘着剤層を、基材の粘着剤層が設けられていない面に貼着しながら巻き回す場合には、基材の粘着剤層が設けられていない面が離型処理されているため、太陽電池モジュールで使用する封止材と接着しにくいことを見出した。また、太陽電池モジュール作製の際に封止材を構成するエチレン−酢酸ビニル共重合体等の材料の一部が分解してガスを発生し、そのガスが、接着性の低い粘着テープの基材と封止材との間に溜まってインフレーションを引き起こすことを見出した。そこで、太陽電池モジュール作製時に発生したガスが粘着テープと封止材との間に溜まることを防止する手法について検討し、以下の太陽電池セル固定用テープを発明した。
すなわち、本発明の太陽電池セル固定用テープは、離型テープと、該離型テープの少なくとも一部に積層された粘着テープとからなり、前記粘着テープは、非離型性基材と、該非離型性基材の片面に設けられた粘着剤層と有し、該粘着剤層が、前記離型テープに剥離可能に貼着されており、離型テープに粘着テープが積層されていない開口部が、粘着テープの長手方向に所定間隔で形成され、粘着テープにおける開口率が３０〜７０％であることを特徴とする。 In the case of winding the adhesive layer of the adhesive tape on the surface on which the adhesive layer of the base material is not provided, the present inventors have a surface on which the adhesive layer of the base material is not provided. It has been found that it is difficult to adhere to the sealing material used in the solar cell module because it has been mold-released. In addition, a part of the material such as ethylene-vinyl acetate copolymer that constitutes the sealing material during the production of the solar cell module is decomposed to generate a gas, and the gas is a base material of the adhesive tape having low adhesiveness. It has been found that it accumulates between the sealing material and the sealing material to cause inflation. Therefore, a method for preventing gas generated during the production of the solar cell module from collecting between the adhesive tape and the sealing material was examined, and the following solar cell fixing tape was invented.
That is, the solar cell fixing tape of the present invention comprises a release tape and an adhesive tape laminated on at least a part of the release tape, the adhesive tape comprising a non-releasable substrate and the non-releasable substrate. An adhesive layer provided on one side of a releasable base material, the adhesive layer being detachably attached to the release tape, and an opening in which the adhesive tape is not laminated on the release tape The portions are formed at predetermined intervals in the longitudinal direction of the adhesive tape, and the opening ratio of the adhesive tape is 30 to 70% .

本発明の太陽電池セル固定用テープによれば、太陽電池モジュール作製時のインフレーションを防止できる。   According to the solar cell fixing tape of the present invention, it is possible to prevent inflation during the production of the solar cell module.

本発明の太陽電池セル固定用テープの第１の実施形態を示す断面図である。It is sectional drawing which shows 1st Embodiment of the photovoltaic cell fixing tape of this invention. 図１，４の太陽電池セル固定用テープを使用した太陽電池モジュール作製の一工程を示す断面図である。It is sectional drawing which shows 1 process of solar cell module production using the photovoltaic cell fixing tape of FIG. 図１，４の太陽電池セル固定用テープを使用した太陽電池モジュール作製の一工程を示す断面図である。It is sectional drawing which shows 1 process of solar cell module production using the photovoltaic cell fixing tape of FIG. 本発明の太陽電池セル固定用テープの第２の実施形態を示す上面図である。It is a top view which shows 2nd Embodiment of the photovoltaic cell fixing tape of this invention. 図４のＩ−Ｉ’断面図である。It is I-I 'sectional drawing of FIG. 本発明の太陽電池セル固定用テープの他の実施形態を示す上面図である。It is a top view which shows other embodiment of the tape for solar cell fixing of this invention.

（第１の実施形態）
本発明の太陽電池セル固定用テープ（以下、「固定用テープ」と略す。）の第１の実施形態について説明する。
図１に、本実施形態の固定用テープを示す。本実施形態の固定用テープ１０は、離型テープ１１と、離型テープ１１に積層された粘着テープ１２とからなるものである。 (First embodiment)
1st Embodiment of the photovoltaic cell fixing tape (henceforth "fixing tape") of this invention is described.
FIG. 1 shows the fixing tape of this embodiment. The fixing tape 10 according to this embodiment includes a release tape 11 and an adhesive tape 12 laminated on the release tape 11.

離型テープ１１は、紙や樹脂フィルム等の基材の片面が離型処理されたテープである。ここで、離型処理とは、離型剤（例えば、シリコーン系離型剤、フッ素系離型剤等）を塗布して離型層を設ける処理のことである。   The release tape 11 is a tape in which one side of a base material such as paper or a resin film is subjected to release treatment. Here, the release treatment is a treatment for applying a release agent (for example, a silicone release agent, a fluorine release agent, etc.) to provide a release layer.

粘着テープ１２は、非離型性基材１２ａと、非離型性基材１２ａの一方の面に設けられた粘着剤層１２ｂとを備えるテープである。   The adhesive tape 12 is a tape provided with a non-releasable substrate 12a and an adhesive layer 12b provided on one surface of the non-releasable substrate 12a.

非離型性基材１２ａは、離型処理が施されていない樹脂フィルムである。前記樹脂フィルムを構成する樹脂としては、例えば、ポリエチレンテレフタレート、ポリエチレン、ポリプロピレン、アクリル樹脂、ポリスチレンなどが挙げられるが、耐熱性および汎用性に優れることから、ポリエチレンテレフタレートが好ましい。   The non-releasable substrate 12a is a resin film that has not been subjected to a release treatment. Examples of the resin constituting the resin film include polyethylene terephthalate, polyethylene, polypropylene, acrylic resin, and polystyrene. Polyethylene terephthalate is preferable because of its excellent heat resistance and versatility.

非離型性基材１２ａの厚さは５０〜１５０μｍであることが好ましく、７５〜１００μｍであることがより好ましい。非離型性基材１２ａの厚さが前記下限値以上であれば、固定用テープ１０の引張強度を充分に高くでき、前記上限値以下であれば、充分な柔軟性を確保できる。   The thickness of the non-releasable substrate 12a is preferably 50 to 150 μm, and more preferably 75 to 100 μm. If the thickness of the non-releasable substrate 12a is equal to or greater than the lower limit value, the tensile strength of the fixing tape 10 can be sufficiently increased, and if it is equal to or less than the upper limit value, sufficient flexibility can be ensured.

粘着剤層１２ｂを構成する粘着剤としては、アクリル系粘着剤、シリコーン系粘着剤、ウレタン系粘着剤、ゴム系粘着剤が使用される。粘着剤層１２ｂには、粘着剤に加えて粘着付与剤が含まれてもよい。粘着付与剤としては、ロジン系、テルペン系、フェノール系、クマロン系等の粘着付与剤が挙げられる。   As an adhesive which comprises the adhesive layer 12b, an acrylic adhesive, a silicone adhesive, a urethane adhesive, and a rubber adhesive are used. The pressure-sensitive adhesive layer 12b may contain a tackifier in addition to the pressure-sensitive adhesive. Examples of the tackifier include rosin-based, terpene-based, phenol-based and coumarone-based tackifiers.

粘着剤層１２ｂの厚さは３〜１０μｍであることが好ましく、５〜８μｍであることがより好ましい。粘着剤層１２ｂの厚さが前記下限値以上であれば、充分な接着性を確保でき、前記上限値以下であれば、粘着剤層１２ｂを容易に形成できる。   The thickness of the pressure-sensitive adhesive layer 12b is preferably 3 to 10 μm, and more preferably 5 to 8 μm. If the thickness of the pressure-sensitive adhesive layer 12b is not less than the lower limit value, sufficient adhesiveness can be secured, and if the thickness is not more than the upper limit value, the pressure-sensitive adhesive layer 12b can be easily formed.

上記固定用テープ１０は、例えば、非離型性基材１２ａの片面に、粘着剤を塗布して粘着剤層１２ｂを設けた後、粘着剤層１２ｂに離型テープ１１を貼り合せることによって製造することができる。
あるいは、離型テープ１１上に粘着剤を塗布して粘着剤層１２ｂを形成し、その粘着剤層１２ｂに非離型性基材１２ａを貼り合せることによって製造することができる。 The fixing tape 10 is manufactured, for example, by applying a pressure-sensitive adhesive on one side of the non-releasable substrate 12a to provide a pressure-sensitive adhesive layer 12b, and then bonding the release tape 11 to the pressure-sensitive adhesive layer 12b. can do.
Or it can manufacture by apply | coating an adhesive on the release tape 11, forming the adhesive layer 12b, and bonding the non-releasing base material 12a to the adhesive layer 12b.

上記固定用テープ１０を用いて太陽電池モジュールを作製する場合には、図２に示すように、離型テープ１１から剥離して取り出した粘着テープ１２を、第１の封止材２０上に配置された、互いに隣接する太陽電池セル３０，３０同士を掛け渡すように貼着する。これにより、互いに隣接する太陽電池セル３０，３０同士を固定して、配置がずれることを防止する。
粘着テープ１２で太陽電池セル３０を固定した後には、図３に示すように、第１の封止材２０と第２の封止材４０とで、粘着テープ１２および太陽電池セル３０を挟み込んで封止する。
従来の粘着テープのように基材の粘着剤層が設けられていない面が離型処理されている場合には、基材と第２の封止材との接着性が低く、太陽電池モジュール作製の際に封止材の一部が分解して発生したガスが、基材と第２の封止材との間に溜まって、インフレーションを引き起こしやすくなっていた。これに対し、本実施形態では、離型テープ１１を用いているため、粘着テープ１２の基材として、粘着剤層１２ｂが設けられていない面が離型処理されていない非離型性基材１２ａを用いることができる。第１の封止材２０と第２の封止材４０とで太陽電池セル３０および固定用テープ１０を挟んだ際には、粘着テープ１２の非離型性基材１２ａの表面に第２の封止材４０が容易に貼着するため、非離型性基材１２ａと第２の封止材４０との間に隙間が形成しにくい。そのため、封止材２０，４０の分解によりガスが発生しても、非離型性基材１２ａと第２の封止材４０との間に入り込んで溜まることを防止できる。
したがって、本実施形態の固定用テープ１０によれば、太陽電池モジュール作製時のインフレーションを防止できるため、太陽電池モジュールの外観を損なうことを防止でき、また、封止性が低下することを防ぐことができる。 When producing a solar cell module using the fixing tape 10, the adhesive tape 12 peeled off from the release tape 11 is placed on the first sealing material 20 as shown in FIG. The solar cells 30, 30 adjacent to each other are pasted so as to span each other. Thereby, the photovoltaic cells 30 and 30 which adjoin each other are fixed, and it prevents that arrangement | positioning shifts | deviates.
After fixing the photovoltaic cell 30 with the adhesive tape 12, the adhesive tape 12 and the photovoltaic cell 30 are sandwiched between the first sealing material 20 and the second sealing material 40 as shown in FIG. Seal.
When the surface of the base material on which the pressure-sensitive adhesive layer is not provided is subjected to release treatment as in the case of a conventional pressure-sensitive adhesive tape, the adhesiveness between the base material and the second sealing material is low, and the solar cell module is manufactured At this time, a gas generated by disassembling a part of the sealing material was accumulated between the base material and the second sealing material, and inflation was easily caused. On the other hand, in this embodiment, since the release tape 11 is used, as the base material of the adhesive tape 12, the surface on which the adhesive layer 12b is not provided is not subjected to the release treatment. 12a can be used. When the solar battery cell 30 and the fixing tape 10 are sandwiched between the first sealing material 20 and the second sealing material 40, the second sealing material 10 is attached to the surface of the non-releasable substrate 12 a of the adhesive tape 12. Since the sealing material 40 is easily pasted, it is difficult to form a gap between the non-releasable substrate 12a and the second sealing material 40. Therefore, even if gas is generated due to decomposition of the sealing materials 20 and 40, it is possible to prevent the gas from entering and collecting between the non-releasable base material 12 a and the second sealing material 40.
Therefore, according to the fixing tape 10 of the present embodiment, since the inflation at the time of manufacturing the solar cell module can be prevented, the appearance of the solar cell module can be prevented from being damaged, and the sealing performance can be prevented from being lowered. Can do.

（第２の実施形態）
本発明の太陽電池セル固定用テープ（以下、「固定用テープ」と略す。）の第２の実施形態について説明する。
図４，５に、本実施形態の固定用テープを示す。本実施形態の固定用テープ５０は、離型テープ５１に粘着テープ５２が積層されていない部分が、離型テープ５１の長手方向に所定間隔で形成されていること以外は、第１の実施形態における粘着テープ１２と同様であり、離型テープ５１と、離型テープ５１に積層された粘着テープ５２とからなっている。 (Second Embodiment)
A second embodiment of the solar cell fixing tape (hereinafter abbreviated as “fixing tape”) of the present invention will be described.
4 and 5 show the fixing tape of this embodiment. The fixing tape 50 of the present embodiment is the same as that of the first embodiment except that the portions where the adhesive tape 52 is not laminated on the release tape 51 are formed at predetermined intervals in the longitudinal direction of the release tape 51. And includes a release tape 51 and an adhesive tape 52 laminated on the release tape 51.

具体的に、粘着テープ５２は、離型テープ５１の長手方向に一定間隔で矩形状の開口部Ａが形成されて、離型テープ５１に粘着テープ５２が積層されていない部分が形成されている。
粘着テープ５２における開口率（［全開口面積／粘着テープ全体面積］×１００％）は３０〜７０％であることが好ましく、４０〜６０％であることがより好ましい。開口率が前記下限値以上であれば、インフレーションを充分に防止でき、前記上限値以下であれば、互いに隣接する太陽電池セル同士を確実に固定できる。
また、互いに隣接する開口部Ａ，Ａ同士の最短距離は０．５〜３．０ｍｍであることが好ましく、１．０〜２．０ｍｍであることがより好ましい。互いに隣接する開口部Ａ，Ａ同士の最短距離が前記下限値以上であれば、互いに隣接する太陽電池セル同士を確実に固定でき、前記上限値以下であれば、インフレーションを充分に防止できる。 Specifically, the adhesive tape 52 has rectangular openings A formed at regular intervals in the longitudinal direction of the release tape 51, and a portion where the adhesive tape 52 is not laminated on the release tape 51 is formed. .
The opening ratio of the adhesive tape 52 ([total opening area / total area of the adhesive tape] × 100%) is preferably 30 to 70%, and more preferably 40 to 60%. If the aperture ratio is equal to or higher than the lower limit value, inflation can be sufficiently prevented, and if the aperture ratio is equal to or lower than the upper limit value, solar cells adjacent to each other can be reliably fixed.
Moreover, the shortest distance between the openings A and A adjacent to each other is preferably 0.5 to 3.0 mm, and more preferably 1.0 to 2.0 mm. If the shortest distance between the openings A and A adjacent to each other is equal to or greater than the lower limit value, adjacent solar cells can be reliably fixed, and if the distance is equal to or less than the upper limit value, inflation can be sufficiently prevented.

上記固定用テープ５０を用いて太陽電池モジュールを作製する場合には、図２に示すように、離型テープ５１から剥離して取り出した粘着テープ５２を、第１の封止材２０上に配置された、互いに隣接する太陽電池セル３０，３０同士を掛け渡すように貼着する。その際、粘着テープ５２の幅方向の端部を太陽電池セル３０に貼着する。これにより、互いに隣接する太陽電池セル３０，３０同士を固定して、配置がずれることを防止する。
粘着テープ５２で太陽電池セル３０を固定した後には、図３に示すように、第１の封止材２０と第２の封止材４０とで、粘着テープ５２および太陽電池セル３０を挟み込んで封止する。
本実施形態では、離型テープ５１を用いているため、粘着テープ５２の基材として、粘着剤層１２ｂが設けられていない面が離型処理されていない非離型性基材１２ａを用いることができる。第１の封止材２０と第２の封止材４０とで太陽電池セル３０および固定用テープ１０を挟んだ際には、粘着テープ５２の非離型性基材１２ａの表面に第２の封止材４０が容易に貼着する上に、粘着テープ５２に形成された開口部Ａにて、第１の封止材２０と第２の封止材４０とが接触し、さらには接着する。そのため、非離型性基材１２ａと第２の封止材４０との間に隙間が形成しにくく、封止材２０，４０の分解によりガスが発生しても、非離型性基材１２ａと第２の封止材４０との間に入り込んで溜まることを防止できる。
したがって、本実施形態の固定用テープ５０によれば、太陽電池モジュール作製時のインフレーションを防止できる。これにより、太陽電池モジュールの外観を損なうことを防止でき、また、封止性が低下することを防ぐことができる。 When a solar cell module is manufactured using the fixing tape 50, as shown in FIG. 2, the adhesive tape 52 peeled off from the release tape 51 is disposed on the first sealing material 20. The solar cells 30, 30 adjacent to each other are pasted so as to span each other. In that case, the edge part of the width direction of the adhesive tape 52 is stuck on the photovoltaic cell 30. Thereby, the photovoltaic cells 30 and 30 which adjoin each other are fixed, and it prevents that arrangement | positioning shifts | deviates.
After fixing the solar battery cell 30 with the adhesive tape 52, the adhesive tape 52 and the solar battery cell 30 are sandwiched between the first sealing material 20 and the second sealing material 40 as shown in FIG. Seal.
In the present embodiment, since the release tape 51 is used, a non-releasable substrate 12a in which the surface on which the adhesive layer 12b is not provided is not subjected to a release treatment is used as the substrate of the adhesive tape 52. Can do. When the solar battery cell 30 and the fixing tape 10 are sandwiched between the first sealing material 20 and the second sealing material 40, the second sealing material 10 is attached to the surface of the non-releasable substrate 12a of the adhesive tape 52. In addition to the sealing material 40 being easily attached, the first sealing material 20 and the second sealing material 40 are in contact with each other at the opening A formed in the pressure-sensitive adhesive tape 52, and further bonded. . Therefore, it is difficult to form a gap between the non-releasable substrate 12a and the second sealing material 40, and even if gas is generated due to decomposition of the sealing materials 20 and 40, the non-releasable substrate 12a. And the second sealing material 40 can be prevented from entering and accumulating.
Therefore, according to the fixing tape 50 of the present embodiment, it is possible to prevent inflation during the production of the solar cell module. Thereby, it can prevent that the external appearance of a solar cell module is impaired, and can prevent that sealing performance falls.

なお、本発明の固定用テープは、上記実施形態に限定されない。
例えば、第２の実施形態における粘着テープに形成された開口部は矩形状でなくてもよく、例えば、円形状、楕円形状であってもよい。
また、離型テープの幅方向の端部に粘着テープがない形態、例えば、図６に示すように、離型テープ５１の幅方向に沿った細長の粘着テープ５２が、離型テープ５１の長手方向に一定間隔で設けられた形態であってもよい。この場合も、離型テープに粘着テープが積層されていない部分が形成される。 The fixing tape of the present invention is not limited to the above embodiment.
For example, the opening formed in the adhesive tape according to the second embodiment may not be rectangular, and may be, for example, circular or elliptical.
Further, a form in which there is no adhesive tape at the end in the width direction of the release tape, for example, as shown in FIG. 6, an elongated adhesive tape 52 along the width direction of the release tape 51 is The form provided in the direction at regular intervals may be used. Also in this case, a part where the adhesive tape is not laminated on the release tape is formed.

１０，５０ 固定用テープ（太陽電池セル固定用テープ）
１１，５１ 離型テープ
１２，５２ 粘着テープ
１２ａ 非離型性基材
１２ｂ 粘着剤層
２０ 第１の封止材
３０ 太陽電池セル
４０ 第２の封止材
Ａ 開口部 10,50 Fixing tape (solar cell fixing tape)
DESCRIPTION OF SYMBOLS 11,51 Release tape 12,52 Adhesive tape 12a Non-releasable base material 12b Adhesive layer 20 1st sealing material 30 Solar cell 40 2nd sealing material A Opening part

Claims (1)

離型テープと、該離型テープの少なくとも一部に積層された粘着テープとからなり、前記粘着テープは、非離型性基材と、該非離型性基材の片面に設けられた粘着剤層と有し、該粘着剤層が、前記離型テープに剥離可能に貼着されており、
離型テープに粘着テープが積層されていない開口部が、粘着テープの長手方向に所定間隔で形成され、粘着テープにおける開口率が３０〜７０％である、太陽電池セル固定用テープ。 It consists of a release tape and an adhesive tape laminated on at least a part of the release tape, the adhesive tape comprising a non-releasable substrate and an adhesive provided on one side of the non-releasable substrate. And the pressure-sensitive adhesive layer is detachably attached to the release tape ,
A solar cell fixing tape in which openings where the adhesive tape is not laminated on the release tape are formed at predetermined intervals in the longitudinal direction of the adhesive tape, and the opening ratio in the adhesive tape is 30 to 70% .
JP2012176923A 2012-08-09 2012-08-09 Solar cell fixing tape Expired - Fee Related JP5997972B2 (en)

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