JP2008114530A - 複合シートの製造方法 - Google Patents
複合シートの製造方法 Download PDFInfo
- Publication number
- JP2008114530A JP2008114530A JP2006301373A JP2006301373A JP2008114530A JP 2008114530 A JP2008114530 A JP 2008114530A JP 2006301373 A JP2006301373 A JP 2006301373A JP 2006301373 A JP2006301373 A JP 2006301373A JP 2008114530 A JP2008114530 A JP 2008114530A
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- JP
- Japan
- Prior art keywords
- porous film
- composite sheet
- temperature
- heating roll
- hot melt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0854—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns in the form of a non-woven mat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2223/00—Use of polyalkenes or derivatives thereof as reinforcement
- B29K2223/10—Polymers of propylene
- B29K2223/12—PP, i.e. polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2267/00—Use of polyesters or derivatives thereof as reinforcement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0065—Permeability to gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1207—Heat-activated adhesive
- B32B2037/1215—Hot-melt adhesive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
- B32B37/20—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of continuous webs only
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Abstract
【解決手段】通気性補強材にホットメルト接着剤を塗布してオレフィン系多孔質フィルムを接着する際に、オレフィン系多孔質フィルム側から最初に圧着するロールを加熱ロールとし、加熱ロールの温度を、示差走査熱量測定法によって示されるオレフィン系多孔質フィルムの補外融解終了温度よりも5℃高い温度から15℃低い温度の範囲にし、さらに加熱ロールをオレフィン系多孔質フィルムに接触させる時間を0.25〜0.75秒にして、オレフィン系多孔質フィルムの熱収縮処理とホットメルト接着剤による接合処理を同時に行う。
【選択図】図1
Description
示差走査型熱量分析装置(セイコー電子社製、RDC220)で、室温から150℃まで10℃/minで昇温させたときの示差走査熱量測定(DSC)を行い、昇温DSC曲線を得て、JIS−K7121に規定される方法で融解温度を求めた。得られた昇温DSC曲線を図1(多孔質フィルムA)、図2(多孔質フィルムB)に示す。
王研式透気度専用機(旭精工社製、TYPE KGI−55)を用いて通気度を測定した。
JIS−L1099のA−1法に規定されるカップにより、JIS−A1342に規定される方法で透湿度を測定した。
複合シートの幅方向に試料(長さ15cm、幅2.5cm)を5枚採取し、テンシロン引張試験機(エー・アンド・ディ社製、商品名「テンシロン」)を用いて、23℃の雰囲気温度中で引張速度100mm/minで剥離強度を測定した。
複合シートの幅方向に試料(長さ30cm、幅5cmおよび長さ5cm、幅30cm)をそれぞれ各5枚採取する。採取した試料をJIS−K7272に規定される耐久性試験(一定の温度(90℃±2℃)に保持されたオーブン中に7週間放置する)を実施した後、目視により複合シートの状態を観察した。複合シートの接合部の剥がれや皺、反りの発生が全くないものを○、複合シートに反りのみが発生したものを△、多孔質フィルムの熱による収縮で通気性補強材からの剥がれが発生したものを×とした。
実施例1〜5および比較例2〜6は、直径300mmの誘電発熱式による加熱ロールを備えたラミネート装置によって、複合シートの製造を行った。また、実施例6〜10および比較例7〜10は、直径450mmの熱媒循環式による加熱ロールを備えたラミネート装置によって、複合シートの製造を行った。
(1) 多孔質フィルムA:ポリエチレン(厚み45μm、融解温度122.6℃)
(2) 多孔質フィルムB:ポリエチレン(厚み40μm、融解温度126.3℃)
(3) 通気性補強材A:ポリエステル製不織布(秤量50g/m2 )
(4) 通気性補強材B:ポリプロピレン製不織布(秤量35g/m2 )
比較例1を除くすべての複合シートの製造には、合成ゴム系ホットメルト接着剤(溶融粘度3,500mPa・s/180℃)を使用し、細い糸状にホットメルト接着剤を塗布できる塗布装置(サンツール社製)により、塗布温度180℃、塗布量8g/m2 の条件で通気性補強材側にホットメルト接着剤を塗布した。
直径300mmの誘電発熱式による加熱ロールを備えたラミネート装置において、通気性補強材Aにホットメルト接着剤を塗布した後、多孔質フィルムAを加熱ロール温度108.0℃(多孔質フィルムAの融解温度よりも14.6℃下)、施工速度60m/min(加熱ロールとの接触時間0.53秒)の条件で貼り合わせ、複合シートを得た。
実施例1と同じラミネート装置で、通気性補強材Aにホットメルト接着剤を塗布した後、実施例2は、多孔質フィルムAを加熱ロール温度110.0℃(多孔質フィルムAの融解温度よりも12.6℃下)、施工速度45m/min(加熱ロールとの接触時間0.71秒)の条件で貼り合わせ、実施例3は、多孔質フィルムAを加熱ロール温度110.0℃のまま、施工速度80m/min(加熱ロールとの接触時間0.40秒)の条件で貼り合わせ、実施例4は、多孔質フィルムAを加熱ロール温度115.0℃(多孔質フィルムAの融解温度よりも7.6℃下)、施工速度60m/min(加熱ロールとの接触時間0.53秒)の条件で貼り合わせ、実施例5は、多孔質フィルムAを加熱ロール温度120.0℃(多孔質フィルムAの融解温度よりも2.6℃下)、施工速度110m/min(加熱ロールとの接触時間0.29秒)の条件で貼り合わせ、それぞれ複合シートを得た。
直径450mmの熱媒循環式による加熱ロールを備えたラミネート装置において、通気性補強材Bにホットメルト接着剤を塗布した後、多孔質フィルムBを加熱ロール温度115.0℃(多孔質フィルムBの融解温度よりも11.3℃下)、施工速度100m/min(加熱ロールとの接触時間0.42秒)の条件で貼り合わせ、複合シートを得た。
実施例6と同じラミネート装置で、通気性補強材Bにホットメルト接着剤を塗布した後、実施例7は、多孔質フィルムBを加熱ロール温度120.0℃(多孔質フィルムBの融解温度よりも6.3℃下)、施工速度60m/min(加熱ロールとの接触時間0.70秒)の条件で貼り合わせ、実施例8は、多孔質フィルムBを加熱ロール温度125.0℃(多孔質フィルムBの融解温度よりも1.3℃下)、施工速度160m/min(加熱ロールとの接触時間0.26秒)の条件で貼り合わせ、実施例9は、多孔質フィルムBを加熱ロール温度130.0℃(多孔質フィルムBの融解温度よりも3.7℃上)、施工速度65m/min(加熱ロールとの接触時間0.65秒)の条件で貼り合わせ、実施例10は、多孔質フィルムBを加熱ロール温度130.0℃(多孔質フィルムBの融解温度よりも3.7℃上)、施工速度120m/min(加熱ロールとの接触時間0.35秒)の条件で貼り合わせ、それぞれ複合シートを得た。
ポリエチレン系の多孔質フィルムにポリプロピレン繊維を積層後、融着して得た複合シートは、表3に示すように、透湿度が4,681g/m2 ・24hrであったものの、耐久性試験後には放置した状態で円筒形に丸まってしまう程の大きな反りが発生していた。
実施例1〜5と同じラミネート装置で、通気性補強材Aにホットメルト接着剤を塗布した後、比較例3は、多孔質フィルムAを加熱ロール温度105.0℃(多孔質フィルムAの融解温度よりも17.6℃下)、施工速度50m/min(加熱ロールとの接触時間0.64秒)の条件で貼り合わせ、比較例4は、多孔質フィルムAを加熱ロール温度128.0℃(多孔質フィルムAの融解温度よりも5.4℃上)、施工速度90m/min(加熱ロールとの接触時間0.35秒)の条件で貼り合わせ、比較例5は、多孔質フィルムAを加熱ロール温度120.0℃(多孔質フィルムAの融解温度よりも2.6℃下)、施工速度35m/min(加熱ロールとの接触時間0.91秒)の条件で貼り合わせ、比較例6は、多孔質フィルムAを加熱ロール温度115.0℃(多孔質フィルムAの融解温度よりも7.6℃下)、施工速度135m/min(加熱ロールとの接触時間0.24秒)の条件で貼り合わせ、それぞれ複合シートを得た。
実施例6〜10と同じラミネート装置で、通気性補強材Bにホットメルト接着剤を塗布した後、比較例7は、多孔質フィルムBを加熱ロール温度110.0℃(多孔質フィルムBの融解温度よりも16.3℃下)、施工速度80m/min(加熱ロールとの接触時間0.52秒)の条件で貼り合わせ、比較例8は、多孔質フィルムBを加熱ロール温度133.0℃(多孔質フィルムBの融解温度よりも6.7℃上)、施工速度65m/min(加熱ロールとの接触時間0.65秒)の条件で貼り合わせ、比較例9は、多孔質フィルムBを加熱ロール温度120.0℃(多孔質フィルムBの融解温度よりも6.3℃下)、施工速度50m/min(加熱ロールとの接触時間0.84秒)の条件で貼り合わせ、比較例10は、多孔質フィルムBを加熱ロール温度125.0℃(多孔質フィルムBの融解温度よりも1.3℃下)、施工速度175m/min(加熱ロールとの接触時間0.24秒)の条件で貼り合わせ、それぞれ複合シートを得た。
2 通気性補強材
3 ホットメルト接着剤
5 加熱ロール
Claims (4)
- オレフィン系多孔質フィルムと通気性補強材をホットメルト接着剤で接合する複合シートの製造方法において、通気性補強材にホットメルト接着剤を塗布してオレフィン系多孔質フィルムを接着する際に、オレフィン系多孔質フィルム側から最初に圧着するロールを加熱ロールとし、この加熱ロールの温度を、示差走査熱量測定法(DSC)によって示されるオレフィン系多孔質フィルムの補外融解終了温度よりも5℃高い温度から15℃低い温度の範囲にし、さらに前記加熱ロールをオレフィン系多孔質フィルムに接触させる時間を0.25〜0.75秒にして、オレフィン系多孔質フィルムの熱収縮処理とホットメルト接着剤による接合処理を同時に行うことを特徴とする複合シートの製造方法。
- 前記複合シートを、透湿度が3000g/m2 ・24hr以上の透湿性を有するものにしことを特徴とする請求項1記載の複合シートの製造方法。
- 前記オレフィン系多孔質フィルムを、ポリエチレン、ポリプロピレン、またはこれらの混合物からなるものとし、その厚みを15〜70μmにしたことを特徴とする請求項1記載の複合シートの製造方法。
- 前記通気性補強材を、ポリエステル不織布もしくはポリプロピレン不織布、またはポリエステル織布もしくはポリプロピレン織布とし、その秤量を10〜100g/m2 にしたことを特徴とする請求項1記載の複合シートの製造方法。
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103352307A (zh) * | 2013-07-25 | 2013-10-16 | 涟水天宫云锦织造有限公司 | 长卷云锦专用织机 |
KR101384365B1 (ko) * | 2012-07-30 | 2014-04-14 | 정귀철 | 포장지의 필름 합지방법 및 그 장치 |
CN107639846A (zh) * | 2017-09-25 | 2018-01-30 | 北京华夏特材科技发展有限公司 | 一种气凝胶材料表面覆膜设备 |
CN107649340A (zh) * | 2017-09-25 | 2018-02-02 | 周梦溪 | 一种新型气凝胶材料外表镀膜装置 |
WO2023017785A1 (ja) | 2021-08-10 | 2023-02-16 | 帝人株式会社 | 積層膜 |
WO2023017784A1 (ja) | 2021-08-10 | 2023-02-16 | 帝人株式会社 | 積層膜 |
JP7457213B2 (ja) | 2022-03-31 | 2024-03-27 | 花王株式会社 | 多孔質フィルム、その製造方法、及びそれを備えた吸収性物品 |
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2006
- 2006-11-07 JP JP2006301373A patent/JP4269294B2/ja active Active
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2007
- 2007-11-06 TW TW096141905A patent/TW200835591A/zh unknown
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101384365B1 (ko) * | 2012-07-30 | 2014-04-14 | 정귀철 | 포장지의 필름 합지방법 및 그 장치 |
CN103352307A (zh) * | 2013-07-25 | 2013-10-16 | 涟水天宫云锦织造有限公司 | 长卷云锦专用织机 |
CN107639846A (zh) * | 2017-09-25 | 2018-01-30 | 北京华夏特材科技发展有限公司 | 一种气凝胶材料表面覆膜设备 |
CN107649340A (zh) * | 2017-09-25 | 2018-02-02 | 周梦溪 | 一种新型气凝胶材料外表镀膜装置 |
WO2023017785A1 (ja) | 2021-08-10 | 2023-02-16 | 帝人株式会社 | 積層膜 |
WO2023017784A1 (ja) | 2021-08-10 | 2023-02-16 | 帝人株式会社 | 積層膜 |
JP7457213B2 (ja) | 2022-03-31 | 2024-03-27 | 花王株式会社 | 多孔質フィルム、その製造方法、及びそれを備えた吸収性物品 |
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JP4269294B2 (ja) | 2009-05-27 |
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