JP2785350B2 - Adhesive for vinyl alcohol resin film - Google Patents
Adhesive for vinyl alcohol resin filmInfo
- Publication number
- JP2785350B2 JP2785350B2 JP1174942A JP17494289A JP2785350B2 JP 2785350 B2 JP2785350 B2 JP 2785350B2 JP 1174942 A JP1174942 A JP 1174942A JP 17494289 A JP17494289 A JP 17494289A JP 2785350 B2 JP2785350 B2 JP 2785350B2
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- vinyl alcohol
- based resin
- resin film
- pva
- 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.)
- Expired - Lifetime
Links
- 239000000853 adhesive Substances 0.000 title claims description 23
- 230000001070 adhesive effect Effects 0.000 title claims description 23
- 229920005989 resin Polymers 0.000 title claims description 22
- 239000011347 resin Substances 0.000 title claims description 22
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 title claims description 20
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 21
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 14
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 12
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 12
- 239000007864 aqueous solution Substances 0.000 claims description 10
- 235000011187 glycerol Nutrition 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000002202 Polyethylene glycol Substances 0.000 claims description 4
- 229920001223 polyethylene glycol Polymers 0.000 claims description 4
- 238000007127 saponification reaction Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000005001 laminate film Substances 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、ビニルアルコール系樹脂フィルム用接着剤
に関する。更に詳しくは、ビニルアルコール系樹脂フィ
ルム同士の接着に用いられる接着剤に関する。Description: TECHNICAL FIELD The present invention relates to an adhesive for a vinyl alcohol-based resin film. More specifically, the present invention relates to an adhesive used for bonding vinyl alcohol resin films.
従来から、ビニルアルコール系樹脂フィルム、例えば
ポリ酢酸ビニルの完全けん化物または部分けん化物、エ
チレン−酢酸ビニル共重合体けん化物（エチレン−ビニ
ルアルコール共重合体）などのフィルム同士の接着に、
イソシアネート系接着剤が用いられてきたが、ラミネー
トフィルムは耐熱性に劣るという欠点がみられる。Conventionally, vinyl alcohol-based resin films, for example, completely saponified or partially saponified polyvinyl acetate, ethylene-vinyl acetate copolymer saponified (ethylene-vinyl alcohol copolymer) for bonding between films,
Although isocyanate-based adhesives have been used, there is a drawback that laminated films have poor heat resistance.
また、フィルム形成材料と同種のビニルアルコール系
樹脂を接着剤として使用することも行われているが、け
ん化度の低い樹脂フィルムの場合にはけん化度の低いビ
ニルアルコール系樹脂の水溶液を塗布することによって
接着可能であるが、けん化度の高い樹脂フィルムの場合
には殆んど接着効果がない。In addition, the same type of vinyl alcohol-based resin as the film forming material is used as an adhesive, but in the case of a resin film having a low degree of saponification, an aqueous solution of a vinyl alcohol-based resin having a low degree of saponification must be applied. However, in the case of a resin film having a high degree of saponification, there is almost no adhesive effect.
その上、ビニルアルコール系樹脂の水溶液を用いる
と、加熱下で融着する場合水では揮散し易くて効果がな
く、また成形加工時に延伸される場合には揮散による硬
化のため、伸長限界が小さくなり、割れなど不具合を多
く生ずるようになる。In addition, when an aqueous solution of a vinyl alcohol-based resin is used, when fusing under heating, water is easily vaporized and has no effect, and when stretched during molding, the elongation limit is small due to hardening by volatilization. And many problems such as cracks occur.
本発明は、ビニルアルコール系樹脂フィルム同士の接
着に用いられる接着剤であって、ラミネーション加工工
程およびラミネート使用時に加熱されても、このような
欠点のないビニルアルコール系樹脂フィルム用接着剤を
提供することを目的としている。The present invention provides an adhesive for a vinyl alcohol-based resin film which is used for bonding vinyl alcohol-based resin films to each other, and which does not have such a defect even when heated during a lamination processing step and a laminating use. It is intended to be.
かかる本発明の目的は、ポリビニルアルコールおよび
グリセリンまたはエチレングリコールの混合物よりなる
ビニルアルコール系樹脂フィルム同士用接着剤によって
達成される。The object of the present invention is achieved by an adhesive for vinyl alcohol-based resin films made of a mixture of polyvinyl alcohol and glycerin or ethylene glycol.
ポリビニルアルコール（PVA）としては、重合度が約2
00〜3000であって、けん化度が約70〜100％、好ましく
は約85〜100％のものが用いられる。Polyvinyl alcohol (PVA) has a polymerization degree of about 2
Those having a saponification degree of about 70 to 100%, preferably about 85 to 100% are used.
グリセリンおよびエチレングリコールは、それ単体を
PVAと混ぜ、加熱液化した状態であるいは水溶液としてP
VAと混合した状態で用いることができる。水溶液として
用いる場合には、これらのポリオール100重量部当り水
が約300重量部以下、一般には約300〜50重量部の割合で
用いられる。また、これらは、PVAに対して約10〜500
倍、好ましくは約50〜100倍の重量比で用いられ、接着
剤を構成させる。同様にプロピレングリコール、ジエチ
レングリコールなども用いることができる。Glycerin and ethylene glycol
Mix with PVA and heat P
It can be used in a mixed state with VA. When used as an aqueous solution, water is used in an amount of about 300 parts by weight or less, generally about 300 to 50 parts by weight, per 100 parts by weight of these polyols. Also, these are about 10-500 for PVA
Times, preferably about 50 to 100 times by weight, to constitute the adhesive. Similarly, propylene glycol, diethylene glycol and the like can be used.
接着剤中には、分子量約200以上の不揮発性ポリエチ
レングリコール（トリエチレングリコール以上）をPVA
に対して約20重量部以下、一般には約２〜10重量部添加
することにより、接着層に更に柔軟性を付与せしめるこ
ともできる。Non-volatile polyethylene glycol with a molecular weight of about 200 or more (triethylene glycol or more) is used in the adhesive.
By adding about 20 parts by weight or less, generally about 2 to 10 parts by weight, the adhesive layer can be made more flexible.
接着は、ビニルアルコール系樹脂フィルムにこのよう
な接着剤を塗布した後、約70〜180℃、好ましくは約100
〜170℃の温度で熱圧着させることにより行われる。こ
の際、水が用いられた接着剤では、塗布後直ぐに熱圧着
させると気泡を生じ易いので、約50〜120℃の温度で乾
燥させた後熱圧着させることが好ましい。After applying such an adhesive to a vinyl alcohol-based resin film, the adhesion is performed at about 70 to 180 ° C., preferably about 100 ° C.
This is performed by thermocompression bonding at a temperature of about 170 ° C. At this time, in the case of an adhesive using water, bubbles are likely to be generated when hot-pressed immediately after application, so it is preferable to dry at a temperature of about 50 to 120 ° C. and then heat-press.
本発明に係る接着剤を用いて、ビニルアルコール系樹
脂フィルム同士を接着させた場合には、次のような効果
が得られる。When the vinyl alcohol-based resin films are bonded to each other using the adhesive according to the present invention, the following effects can be obtained.
（１）接着さるべきビニルアルコール系樹脂フィルムが
約95％以上の高けん化度のビニルアルコール系樹脂から
形成されていても、良好に接着される。(1) Even if the vinyl alcohol-based resin film to be bonded is formed of a vinyl alcohol-based resin having a high degree of saponification of about 95% or more, good adhesion is achieved.
（２）ラミネートフィルム中には、少量のグリセリンま
たはエチレングリコールが含まれていて柔軟性を付与し
ているため、二次加工が容易であり、ポリエチレングリ
コールの添加により、その効果は更に高められる。(2) Since a small amount of glycerin or ethylene glycol is contained in the laminate film to impart flexibility, secondary processing is easy, and the effect is further enhanced by the addition of polyethylene glycol.
（３）ラミネートフィルムは耐熱性が良好で、加熱剥離
に対する抵抗性が大である。(3) The laminate film has good heat resistance and high resistance to heat peeling.
（４）ダイアフラム用途などラミネートフィルムに高ガ
スバリヤー性が要求される場合には、二次加工後加熱乾
燥してグリセリンまたはエチレングリコールを除去すれ
ばよい。(4) When high gas barrier properties are required for a laminated film such as for a diaphragm application, glycerin or ethylene glycol may be removed by heating and drying after secondary processing.
次に、実施例について本発明を説明する。 Next, the present invention will be described with reference to examples.
実施例１〜４、比較例１〜５ （ビニルアルコール系樹脂フィルム） PVA−I :クラレ製品ビニロンフィルム、厚さ65μ （ポリビニルアルコール完全けん化物） PVA−II:クラレ製品エバールフィルムＦ、厚さ50μ （エチレン−酢酸ビニル共重合体けん化物） （接着剤） A:PVA（重合度500、けん化度98〜99％）10gおよびグリ
セリン500gを150℃に加熱し、液化したもの B:上記PVA 10g、グリセリン200gおよび水300gの水溶液 C:上記PVA 10gおよび水500gの水溶液 D:PVA（重合度500、けん化度85％）10gおよび水500gの
水溶液 E:ウレタン系接着剤（ロード社製品タイセル7000と7200
の100:5混合物）105gおよびメチルエチルケトン300gの
混合液 前記ビニルアルコール系樹脂フィルム２枚の間に上記
接着剤を塗布し、（水溶液が用いられた接着剤Ｂ〜Ｄに
ついては80℃で10分間乾燥後）ロール温度130℃のカレ
ンダーロールで熱圧着した。得られたラミネートフィル
ムについて、次の各項目についての評価を行った。Examples 1-4, Comparative Examples 1-5 (Vinyl alcohol-based resin film) PVA-I: Kuraray product vinylon film, thickness 65μ (polyvinyl alcohol completely saponified) PVA-II: Kuraray product Eval film F, thickness 50μ (Ethylene-vinyl acetate copolymer saponified product) (Adhesive) A: 10 g of PVA (polymerization degree 500, saponification degree 98-99%) and 500 g of glycerin heated to 150 ° C. and liquefied B: 10 g of the above PVA, An aqueous solution of 200 g of glycerin and 300 g of water C: An aqueous solution of 10 g of the above PVA and 500 g of water D: An aqueous solution of 10 g of PVA (polymerization degree 500, saponification degree 85%) and 500 g of water E: Urethane-based adhesive (Thaicell 7000 and 7200 manufactured by Road Co., Ltd.)
A mixture of 105 g of methyl ethyl ketone and 300 g of methyl ethyl ketone The above adhesive was applied between the two vinyl alcohol-based resin films. (The adhesives B to D using an aqueous solution were dried at 80 ° C. for 10 minutes.) After that, thermocompression bonding was performed with a calendar roll having a roll temperature of 130 ° C. With respect to the obtained laminate film, the following items were evaluated.
接着性：短冊状のフイルム２枚の一部を接着させ、これ
を90゜剥離させ、材料破壊ならば○、フィルム−接着剤
層間剥離ならば×として評価 柔軟性:JIS4号ダンベルで破断伸びを測定し、接着前後
での伸び減少率が30％以下ならば○、30〜60％なら△、
それ以上は×として評価 80℃加熱剥離：上記90゜剥離を80℃の加熱下で、実施
し、材料破壊（フィルム破断、接着剤層凝集破壊）なら
ば○、層間剥離ならば×として評価 得られた結果は、次の表１に示される。Adhesion: A part of two strip-shaped films is adhered and peeled off 90 °, and evaluated as ○ for material destruction and × for film-adhesive delamination Flexibility: Elongation at break with JIS No. 4 dumbbell Measure, and if the rate of elongation decrease before and after bonding is 30% or less, ○, if 30-60%, △,
Above that, it is evaluated as ×. 80 ° C heat peeling: The above 90 ° peeling was carried out under heating at 80 ° C. The results obtained are shown in Table 1 below.
実施例５〜８ （接着剤） F:PVA（重合度500、けん化度98〜99％）10g、エチレン
グリコール200gおよび水300gの水溶液 G:上記PVA 10g、エチレングリコール195g、ポリエチレ
ングリコール（＃1000）5gおよび水200gの水溶液 前記ビニルアルコール系樹脂フィルム２枚の間に上記
接着剤を塗布し、80℃で10分間乾燥した後、ロール温度
130℃のカレンダーロールで熱圧着した。得られた、い
ずれも柔軟性を有するラミネートフィルムについて、フ
ィルム破断強度（単体kg/cm）および伸び（単位％）の
測定ならびに80℃加熱時の剥離状態の観察を行った。得
られた結果は、次の表２に示される。 Examples 5 to 8 (Adhesive) F: Aqueous solution of PVA (polymerization degree 500, saponification degree 98 to 99%) 10 g, ethylene glycol 200 g and water 300 g G: PVA 10 g, ethylene glycol 195 g, polyethylene glycol (# 1000) An aqueous solution of 5 g and 200 g of water The above adhesive was applied between the two vinyl alcohol resin films and dried at 80 ° C. for 10 minutes.
Thermocompression bonding was performed using a calendar roll at 130 ° C. With respect to the obtained laminated films each having flexibility, the film breaking strength (unit kg / cm) and elongation (unit%) were measured, and the peeled state when heated at 80 ° C. was observed. The results obtained are shown in Table 2 below.
Claims (4)
これに対して重量で10〜500倍量のグリセリンまたはエ
チレングリコールの混合物よりなるビニルアルコール系
樹脂フィルム同士用接着剤。(1) polyvinyl alcohol and (2)
On the other hand, an adhesive for vinyl alcohol-based resin films comprising a mixture of glycerin or ethylene glycol in an amount of 10 to 500 times by weight.
求項１記載のビニルアルコール系樹脂フィルム同士用接
着剤。2. The adhesive for vinyl alcohol-based resin films according to claim 1, wherein the mixture is used in a state where the mixture is heated and liquefied.
記載のビニルアルコール系樹脂フィルム同士用接着剤。3. The method according to claim 1, wherein the mixture is used as an aqueous solution.
The adhesive for vinyl alcohol resin films described in the above.
請求項１記載のビニルアルコール系樹脂フィルム同士用
接着剤。4. The adhesive according to claim 1, further comprising polyethylene glycol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1174942A JP2785350B2 (en) | 1989-07-06 | 1989-07-06 | Adhesive for vinyl alcohol resin film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1174942A JP2785350B2 (en) | 1989-07-06 | 1989-07-06 | Adhesive for vinyl alcohol resin film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0339381A JPH0339381A (en) | 1991-02-20 |
| JP2785350B2 true JP2785350B2 (en) | 1998-08-13 |
Family
ID=15987427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1174942A Expired - Lifetime JP2785350B2 (en) | 1989-07-06 | 1989-07-06 | Adhesive for vinyl alcohol resin film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2785350B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI642768B (en) | 2013-06-04 | 2018-12-01 | 蒙諾蘇爾有限公司 | Water-soluble film sealing solution, related method and related articles |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5920699B2 (en) * | 1975-02-13 | 1984-05-15 | ユニチカ株式会社 | Method for producing thermoplastic fibers with adhesive ability |
| JPS51149328A (en) * | 1975-06-18 | 1976-12-22 | Sekisui Chem Co Ltd | A hot-melt adhesive composition |
| JPS59199783A (en) * | 1983-04-27 | 1984-11-12 | Ipposha Oil Ind Co Ltd | Adhesive composition for surface protecting material |
-
1989
- 1989-07-06 JP JP1174942A patent/JP2785350B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0339381A (en) | 1991-02-20 |
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