JPH0718145A - Polyvinyl alcohol-based film - Google Patents
Polyvinyl alcohol-based filmInfo
- Publication number
- JPH0718145A JPH0718145A JP16557493A JP16557493A JPH0718145A JP H0718145 A JPH0718145 A JP H0718145A JP 16557493 A JP16557493 A JP 16557493A JP 16557493 A JP16557493 A JP 16557493A JP H0718145 A JPH0718145 A JP H0718145A
- Authority
- JP
- Japan
- Prior art keywords
- pva
- film
- weight
- parts
- glycerin
- 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
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は長期間にわたって良好な
柔軟性を有するポリビニルアルコール系フィルムに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polyvinyl alcohol film having good flexibility over a long period of time.
【０００２】[0002]
【従来の技術】ポリビニルアルコール（以下、ＰＶＡと
略記する）は、フィルムおよびシートなどの各種の成形
物の原料に使用されており、これらの成形物にはＰＶＡ
の柔軟化を目的として各種の可塑剤が添加されている。
ＰＶＡ用の可塑剤に要求される性能としては、（１）Ｐ
ＶＡを柔軟にする可塑効果に優れていること、（２）揮
発性が小さく効果が長期間持続すること、（３）ＰＶＡ
との相溶性が良好であり可塑剤の分離および浸出がない
ことなどが挙げられる。2. Description of the Related Art Polyvinyl alcohol (hereinafter abbreviated as PVA) is used as a raw material for various molded products such as films and sheets, and PVA is used for these molded products.
Various plasticizers are added for the purpose of softening.
The performance required for a plasticizer for PVA is (1) P
Excellent plasticizing effect to soften VA, (2) low volatility and long-lasting effect, (3) PVA
It has good compatibility with and is free from separation and leaching of the plasticizer.
【０００３】ＰＶＡ用の可塑剤としては、グリセリンが
一般的に使用されている（特開昭４７−２８０５０号、
特公昭５５−３００１９号）。しかしながら、グリセリ
ンは良好な可塑化効果を示すが、可塑化効果の持続性が
劣る。すなわち、グリセリンを含有したＰＶＡ系成形物
は、該成形物中からグリセリンが揮散しやすく、グリセ
リンが揮散すると成形物の柔軟性が低下する。さらに、
グリセリンを含有したＰＶＡからなるフィルムおよびシ
ートなどの成形物を高温高湿下に放置した場合に、グリ
セリンが成形物の表面に滲出してくる傾向（以下、発汗
性という）があり、また該成形物を低温低湿下に放置し
た場合に、成形物が硬化する傾向がある。さらに、グリ
セリンを添加したＰＶＡフィルムを用いて、繊維製品を
包装した場合には、グリセリンが繊維製品に移行し短期
間でＰＶＡフィルムの柔軟性が失なわれ、フィルムが破
れるという問題があった。その他の可塑剤としては、ジ
エチレングリコール、トリエチレングリコールおよびト
リメチロールプロパンなどが知られているが、これらの
可塑剤は、グリセリンに比較して、ＰＶＡとの相溶性が
劣り、これらの可塑剤を含有した成形物の発汗性もグリ
セリンより大きい。Glycerin is generally used as a plasticizer for PVA (JP-A 47-28050,
Japanese Patent Publication No. 55-30019). However, glycerin has a good plasticizing effect, but the plasticizing effect is less durable. That is, in a PVA-based molded product containing glycerin, glycerin easily volatilizes from the molded product, and when the glycerin volatilizes, the flexibility of the molded product decreases. further,
When a molded product such as a PVA-containing film or sheet containing glycerin is left under high temperature and high humidity, glycerin tends to exude to the surface of the molded product (hereinafter referred to as sweating property). When the product is left under low temperature and low humidity, the molded product tends to cure. Further, when a PVA film containing glycerin is used to package a fiber product, there is a problem that the glycerin is transferred to the fiber product, the flexibility of the PVA film is lost in a short period of time, and the film is broken. As other plasticizers, diethylene glycol, triethylene glycol, trimethylolpropane, etc. are known, but these plasticizers have poor compatibility with PVA as compared with glycerin, and contain these plasticizers. The perspiration of the molded product is also higher than that of glycerin.
【０００４】[0004]
【発明が解決しようとする課題】本発明の目的は、長期
間にわたって良好な柔軟性を有するＰＶＡ系フィルムを
提供することにある。さらに詳しくは、繊維製品を長期
間包装した場合であっても良好な柔軟性を保持し、かつ
透明性およびシール性に優れたＰＶＡ系フィルムを提供
することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a PVA-based film having good flexibility for a long period of time. More specifically, it is to provide a PVA-based film that retains good flexibility even when a textile product is packaged for a long period of time, and that is excellent in transparency and sealing property.
【０００５】[0005]
【課題を解決するための手段】本発明者らは上記課題を
解決するために鋭意検討した結果、ＰＶＡ１００重量部
に対して、グリセリン（Ａ）およびジグリセリン（Ｂ）
からなり配合割合（Ａ）／（Ｂ）が２０／８０〜８０／
２０である可塑剤８重量部以上を含有するＰＶＡ系フィ
ルムを見出し、本発明を完成させるに至った。Means for Solving the Problems As a result of intensive studies for solving the above problems, the present inventors have found that glycerin (A) and diglycerin (B) are added to 100 parts by weight of PVA.
The blending ratio (A) / (B) is 20/80 to 80 /
The present invention has been completed by finding a PVA-based film containing 8 parts by weight or more of a plasticizer of 20.
【０００６】ＰＶＡの重合度は特に制限はないが、フィ
ルム強度の観点から、重合度の下限は５００以上が好ま
しく、１０００以上がより好ましく、重合度の上限は４
０００以下が好ましく、３０００以下がより好ましい。
また、ＰＶＡのケン化度についても特に制限はないが、
フィルム強度の観点から、ケン化度は９０モル％以上が
好ましく、９８モル％以上がより好ましい。本発明に使
用されるＰＶＡとしては、酢酸ビニルを重合して得たポ
リ酢酸ビニルを鹸化することにより得られた通常のＰＶ
Ａなどが使用できる。これらの通常のＰＶＡのほかに、
不飽和カルボン酸またはその誘導体、不飽和スルホン酸
またはその誘導体、炭素数２〜３０のα−オレフィン等
からなる構成単位を１５モル％未満含有する変性ポリビ
ニルアルコール、ポリビニルホルマール、ポリビニルア
セトアセタール、ポリビニルブチラール等のポリビニル
アセタル等も用いることができる。The degree of polymerization of PVA is not particularly limited, but from the viewpoint of film strength, the lower limit of the degree of polymerization is preferably 500 or more, more preferably 1000 or more, and the upper limit of the degree of polymerization is 4 or more.
000 or less is preferable, and 3000 or less is more preferable.
The degree of saponification of PVA is also not particularly limited,
From the viewpoint of film strength, the saponification degree is preferably 90 mol% or more, more preferably 98 mol% or more. The PVA used in the present invention may be ordinary PV obtained by saponifying polyvinyl acetate obtained by polymerizing vinyl acetate.
A etc. can be used. Besides these regular PVA,
Modified polyvinyl alcohol, polyvinyl formal, polyvinyl acetoacetal, polyvinyl butyral containing less than 15 mol% of a constituent unit composed of unsaturated carboxylic acid or its derivative, unsaturated sulfonic acid or its derivative, C2-C30 α-olefin and the like. Polyvinyl acetal and the like can also be used.
【０００７】本発明の可塑剤は、グリセリン（Ａ）およ
びジグリセリン（Ｂ）からなり配合割合（Ａ）／（Ｂ）
が２０／８０〜８０／２０である。配合割合（Ａ）／
（Ｂ）が２０／８０より小さい場合には、ＰＶＡ系フィ
ルムの柔軟性が低下する。配合割合（Ａ）／（Ｂ）が８
０／２０より大きい場合には、フィルムからの可塑剤の
滲出が生じやすくなり、特に繊維製品を長期間包装した
場合には、可塑剤が繊維製品に移行してＰＶＡ系フィル
ムの柔軟性が低下する。すなわち、配合割合（Ａ）／
（Ｂ）が２０／８０〜８０／２０の場合に限り、ＰＶＡ
系フィルムの長期間にわたる良好な柔軟性が発現し、繊
維製品を長期間包装した場合にもＰＶＡ系フィルム中の
可塑剤が繊維製品に移行せず、ＰＶＡ系フィルムの長期
間にわたる良好な柔軟性が得られる。The plasticizer of the present invention comprises glycerin (A) and diglycerin (B) in a blending ratio (A) / (B).
Is 20/80 to 80/20. Mixing ratio (A) /
When (B) is smaller than 20/80, the flexibility of the PVA-based film is reduced. Mixing ratio (A) / (B) is 8
If it is larger than 0/20, the plasticizer tends to exude from the film, and especially when the fiber product is packaged for a long period of time, the plasticizer migrates to the fiber product and the flexibility of the PVA-based film decreases. To do. That is, the mixing ratio (A) /
Only when (B) is 20/80 to 80/20, PVA
Good flexibility of the PVA-based film is exhibited for a long period of time, and the plasticizer in the PVA-based film does not migrate to the fiber product even when the fiber-based film is packaged for a long period of time. Is obtained.
【０００８】可塑剤の含有量は、ＰＶＡ１００重量部に
対して８重量部以上であることが必要であり、低温での
使用を考えると１０重量部以上が好ましく、１４重量部
以上がより好ましい。可塑剤含有量の上限については特
に限定はないが、フィルム表面への滲出予防の点を考慮
すると、４０重量部以下が好ましく、２０重量部以下が
より好ましい。本発明のＰＶＡフィルムの厚みは特に制
限はないが、フィルムの強度の観点から、１５μｍ以上
が好ましく、２５μｍ以上がより好ましい。またＰＶＡ
フィルムの厚みの上限についても特に制限はないが５０
０μｍ以下が好ましく、３００μｍ以下がより好まし
く、２００μｍ以下が特に好ましい。The content of the plasticizer is required to be 8 parts by weight or more based on 100 parts by weight of PVA. Considering use at low temperature, 10 parts by weight or more is preferable, and 14 parts by weight or more is more preferable. The upper limit of the plasticizer content is not particularly limited, but considering the prevention of exudation on the film surface, it is preferably 40 parts by weight or less, more preferably 20 parts by weight or less. The thickness of the PVA film of the present invention is not particularly limited, but from the viewpoint of the strength of the film, it is preferably 15 μm or more, more preferably 25 μm or more. Also PVA
The upper limit of the thickness of the film is also not particularly limited, but 50
It is preferably 0 μm or less, more preferably 300 μm or less, and particularly preferably 200 μm or less.
【０００９】尚、本発明のＰＶＡ系フィルムには、グリ
セリンとジグリセリンの他に、若干量のジエチレングリ
コール、トリグリセリンおよびポリエチレングリコール
などのポリオール類を併用しても良い。In addition to glycerin and diglycerin, a small amount of polyols such as diethylene glycol, triglycerin and polyethylene glycol may be used in combination with the PVA film of the present invention.
【００１０】本発明のＰＶＡ系フィルムの成形法として
は、溶液流延法および押出法などの各種の成形法がいず
れも可能であり、成形の際に一般に用いられる各種の界
面活性剤および酸化防止剤などの公知の添加剤を含有し
ていても良い。As the method for molding the PVA-based film of the present invention, various molding methods such as a solution casting method and an extrusion method are all possible, and various kinds of surfactants and antioxidants generally used at the time of molding. Known additives such as agents may be contained.
【００１１】[0011]
【実施例】以下、実施例により本発明を具体的に説明す
るが、本発明はこれらの実施例に限定されるものではな
い。なお、以下の実施例においては以下の測定方法によ
り評価した。EXAMPLES The present invention will now be described in detail with reference to examples, but the present invention is not limited to these examples. In addition, in the following examples, the following measuring methods were used for evaluation.
【００１２】［液クロマトグラフィー法］日本分光
（株）製の高速液体クロマトグラフを用いて、ＰＶＡフ
ィルムを塩化カリウム水溶液に溶解した試料を測定し、
グリセリン及びジグリセリンのピークからそれぞれの含
有量を測定した。 ［ヤング率］（株）オリエンテック製のテンシロンＵＴ
Ｍ−４Ｌを用いて、試料幅１５ｍｍ、つかみ間隔１００
ｍｍ、引張速度１００ｍｍ／分で応力・歪曲線を描か
せ、伸度１％の弾性率をヤング率とした。 ［ヘイズ］東京電色（株）製のＭ−７００Ｈを用いて測
定した。[Liquid Chromatography Method] A high performance liquid chromatograph manufactured by JASCO Corporation was used to measure a sample in which a PVA film was dissolved in an aqueous potassium chloride solution.
The respective contents were measured from the peaks of glycerin and diglycerin. [Young's modulus] Tensilon UT manufactured by Orientec Co., Ltd.
Using M-4L, sample width 15mm, gripping interval 100
A stress-strain curve was drawn at mm and a pulling speed of 100 mm / min, and the elastic modulus at an elongation of 1% was taken as the Young's modulus. [Haze] It was measured using M-700H manufactured by Tokyo Denshoku Co., Ltd.
【００１３】実施例１ 重合度１７５０、ケン化度９９．９モル％のＰＶＡ４５
重量部、水５０重量部、グリセリン１．２重量部および
ジグリセリン３．８重量部からなるペレットを用いて、
押出乾式製膜法により、膜厚み４０μｍのＰＶＡフィル
ムロールを作製した。作製したＰＶＡフィルムについ
て、液クロマトグラフィー法により、ＰＶＡフィルム中
のグリセリン含有量とジグリセリン含有量を求めた結
果、ＰＶＡ１００重量部に対するグリセリン含有量２．
４重量部およびジグリセリン含有量８．２重量部であ
り、グリセリンとジグリセリンの配合割合はグリセリン
／ジグリセリン＝２１．２／７８．８であった。得られ
たＰＶＡフィルムのヘイズは１．１％、２０℃，６５％
ＲＨでのヤング率は２５ｋｇ／ｍｍ2であり、透明で柔
軟性に富む性能を示した。次に該ＰＶＡフィルムを用い
て、（株）藤田機械製の溶断製袋機を使用して、寸法２
０ｃｍ×３０ｃｍの袋を作製した。上記の方法により得
られた袋を用い、綿１００％のワイシャツを包装し、３
０℃，８０％ＲＨの環境下に３０日間放置した後、取り
出したＰＶＡフィルムについて液クロマトグラフィー法
により、再びＰＶＡフィルム中のグリセリン含有量とジ
グリセリン含有量を求めた結果、ＰＶＡ１００重量部に
対するグリセリン含有量２．０重量部およびジグリセリ
ン含有量８．０重量部であった。また、ヘイズは１．１
％、２０℃，６５％ＲＨでのヤング率は３０ｋｇ／ｃｍ
2であり、透明性と柔軟性に優れており、１ｍ高さか
ら、繰り返して１０回落下しても袋は破裂しなかった。Example 1 PVA45 having a degree of polymerization of 1750 and a degree of saponification of 99.9 mol%
Parts by weight, 50 parts by weight of water, 1.2 parts by weight of glycerin and 3.8 parts by weight of diglycerin are used,
A PVA film roll having a film thickness of 40 μm was produced by an extrusion dry film forming method. Regarding the produced PVA film, the glycerin content and the diglycerin content in the PVA film were determined by a liquid chromatography method, and as a result, the glycerin content per 100 parts by weight of PVA was 2.
4 parts by weight and the diglycerin content was 8.2 parts by weight, and the mixing ratio of glycerin and diglycerin was glycerin / diglycerin = 21.2 / 78.8. The haze of the obtained PVA film was 1.1%, 20 ° C., 65%
The Young's modulus at RH was 25 kg / mm 2 , and the performance was transparent and highly flexible. Then, the PVA film was used to measure a size of 2 by using a fusing bag making machine manufactured by Fujita Machine Co., Ltd.
A 0 cm × 30 cm bag was prepared. Using the bag obtained by the above method, wrap a 100% cotton shirt and
After being left in an environment of 0 ° C. and 80% RH for 30 days, the PVA film taken out was again subjected to liquid chromatography to determine the glycerin content and the diglycerin content in the PVA film. As a result, 100 parts by weight of PVA was mixed with glycerin. The content was 2.0 parts by weight and the diglycerin content was 8.0 parts by weight. The haze is 1.1.
%, Young's modulus at 20 ° C. and 65% RH is 30 kg / cm
It was 2 , excellent in transparency and flexibility, and the bag did not burst even if repeatedly dropped 10 times from a height of 1 m.
【００１４】比較例１ 実施例１と同様の方法により、重合度１７５０，ケン化
度９９．９モル％のＰＶＡ４５重量部、水５０重量部、
グリセリン４．８重量部およびジグリセリン０．２重量
部からなるペレットを用いて、押出乾式製膜法により、
膜厚み４０μｍのＰＶＡフィルムロールを作製した。作
製したＰＶＡフィルムについて、液クロマトグラフィー
法により、ＰＶＡフィルム中のグリセリン含有量とジグ
リセリン含有量を求めた結果、ＰＶＡ１００重量部に対
するグリセリン含有量１０．０重量部およびジグリセリ
ン含有量０．４重量部であり、グリセリンとジグリセリ
ンの配合割合はグリセリン／ジグリセリン＝９６．２／
３．８であった。得られたＰＶＡフィルムのヘイズは
１．０％、２０℃，６５％ＲＨでのヤング率は２３ｋｇ
／ｍｍ2であり、透明で柔軟性に富む性能を示した。次
に該ＰＶＡフィルムを用いて、（株）藤田機械製の溶断
製袋機を使用して寸法２０ｃｍ×３０ｃｍの袋を作製し
た。上記の方法により得られた袋を用いて、綿１００％
のワイシャツを包装し、３０℃，８０％ＲＨの環境下に
３０日間放置した後取り出したＰＶＡフィルムについ
て、液クロマトグラフィー法により、再びＰＶＡフィル
ム中のグリセリン含有量とジグリセリン含有量を求めた
結果、ＰＶＡ１００重量部に対するグリセリン含有量
４．５重量部およびジグリセリン含有量０．４重量部で
あった。また、ヘイズは１．５％．２０℃，６５％ＲＨ
でのヤング率は９８ｋｇ／ｃｍ2であり、透明性と柔軟
性が失なわれて硬いフィルムであり、１ｍの高さから落
下したところ、１回目で袋が破裂した。Comparative Example 1 By the same method as in Example 1, 45 parts by weight of PVA having a polymerization degree of 1750 and a saponification degree of 99.9 mol%, 50 parts by weight of water,
Using a pellet consisting of 4.8 parts by weight of glycerin and 0.2 parts by weight of diglycerin, by an extrusion dry film-forming method,
A PVA film roll having a film thickness of 40 μm was produced. About the produced PVA film, the glycerin content and the diglycerin content in the PVA film were determined by a liquid chromatography method. As a result, the glycerin content was 10.0 parts by weight and the diglycerin content was 0.4 part by weight with respect to 100 parts by weight of PVA. And the blending ratio of glycerin and diglycerin is glycerin / diglycerin = 96.2 /
It was 3.8. The resulting PVA film had a haze of 1.0% and a Young's modulus of 23 kg at 20 ° C. and 65% RH.
/ Mm 2 , which was transparent and showed a highly flexible performance. Next, using the PVA film, a bag having a size of 20 cm × 30 cm was prepared using a fusing bag making machine manufactured by Fujita Machine Co., Ltd. Using the bag obtained by the above method, 100% cotton
Of the PVA film that was taken out after packaging the shirt of No. 3 and leaving it in an environment of 30 ° C. and 80% RH for 30 days, and again obtaining the glycerin content and the diglycerin content in the PVA film by the liquid chromatography method. The glycerin content was 4.5 parts by weight and the diglycerin content was 0.4 parts by weight with respect to 100 parts by weight of PVA. The haze is 1.5%. 20 ° C, 65% RH
Had a Young's modulus of 98 kg / cm 2 and was a hard film with loss of transparency and flexibility. When dropped from a height of 1 m, the bag burst at the first time.
【００１５】実施例２ 実施例１と同様の方法により、膜厚み４０μｍ、ＰＶＡ
１００重量部に対するグリセリン含有量６．９重量部、
ジグリセリン含有量７．１重量部、グリセリンとジグリ
セリンの配合割合グリセリン／ジグリセリン＝４９．３
／５０．７のＰＶＡフィルムを作製した。得られたＰＶ
Ａフィルムのヘイズは１．０％、２０℃，６５％ＲＨで
のヤング率は１６ｋｇ／ｍｍ2であり、透明で柔軟性に
富む性能を示した。次に実施例１と同様の方法により寸
法２０ｃｍ×３０ｃｍの袋を作製し、この袋を用いて純
毛１００％の毛糸を包装し、３０℃，８０％ＲＨの環境
下に３０日間放置した後、取り出したＰＶＡフィルム中
のグリセリン含有量とジグリセリン含有量を求めた結
果、ＰＶＡ１００重量部に対するグリセリン含有量３．
５重量部およびジグリセリン含有量６．９重量部であっ
た。また、ヘイズは１．１％、２０℃，６５％ＲＨでの
ヤング率は２４ｋｇ／ｍｍ2であり、透明性と柔軟性を
有した性能を示しており、１ｍの高さから、繰り返して
１２回落下しても袋は破裂しなかった。Example 2 By the same method as in Example 1, the film thickness was 40 μm, and PVA was used.
Glycerin content of 6.9 parts by weight per 100 parts by weight,
Diglycerin content 7.1 parts by weight, blending ratio of glycerin and diglycerin Glycerin / diglycerin = 49.3
A PVA film of /50.7 was produced. PV obtained
The haze of the A film was 1.0%, the Young's modulus at 20 ° C. and 65% RH was 16 kg / mm 2 , and it showed transparent and flexible performance. Next, a bag having a size of 20 cm × 30 cm was prepared by the same method as in Example 1, 100% pure wool was used to wrap the bag in this bag, and the bag was left in an environment of 30 ° C. and 80% RH for 30 days. As a result of obtaining the glycerin content and the diglycerin content in the PVA film taken out, the glycerin content per 100 parts by weight of PVA was 3.
The content was 5 parts by weight and the diglycerin content was 6.9 parts by weight. The haze is 1.1%, the Young's modulus at 20 ° C. and 65% RH is 24 kg / mm 2 , which shows the performance with transparency and flexibility. The bag did not burst even if it dropped once.
【００１６】比較例２ 実施例２と同様の方法により、膜厚み４０μｍ、ＰＶＡ
１００重量部に対するグリセリン含有量１１．９重量
部、ジグリセリン含有量２．１重量部、グリセリンとジ
グリセリンの配合割合グリセリン／ジグリセリン＝８
５．０／１５．０のＰＶＡフィルムを作製した。得られ
たＰＶＡフィルムのヘイズは１．０％、２０℃，６５％
ＲＨのヤング率は１５ｋｇ／ｍｍ2であり、透明で柔軟
性に富む性能を示した。次に実施例２と同様の方法によ
り、寸法２０ｃｍ×３０ｃｍの袋を作製し、この袋を用
いて、純毛１００％の毛糸を包装し、３０℃，８０％Ｒ
Ｈの環境下に３０日間放置した後、取り出したＰＶＡフ
ィルム中のグリセリン含有量とジグリセリン含有量を求
めた結果、ＰＶＡ１００重量部に対するグリセリン含有
量４．９重量部およびジグリセリン含有量２．０重量部
であった。また、ヘイズは１．６％、２０℃，６５％Ｒ
Ｈのヤング率は５２ｋｇ／ｍｍ2であり、透明性と柔軟
性が失なわれて硬いフィルムであり、１ｍの高さから落
下したところ、２回目で袋が破裂した。Comparative Example 2 By the same method as in Example 2, the film thickness was 40 μm, and PVA was used.
Glycerin content 11.9 parts by weight, diglycerin content 2.1 parts by weight, compounding ratio of glycerin and diglycerin to 100 parts by weight Glycerin / diglycerin = 8
A 5.0 / 15.0 PVA film was prepared. The haze of the obtained PVA film is 1.0%, 20 ° C., 65%
The Young's modulus of RH was 15 kg / mm 2 , and it showed a transparent and flexible property. Then, a bag having a size of 20 cm × 30 cm was prepared in the same manner as in Example 2, and 100% pure wool yarn was packaged in the bag and the bag was heated at 30 ° C. and 80% R.
After left in the H environment for 30 days, the glycerin content and the diglycerin content in the PVA film taken out were determined, and as a result, the glycerin content was 4.9 parts by weight and the diglycerin content was 2.0 with respect to 100 parts by weight of PVA. It was part by weight. Also, haze is 1.6%, 20 ° C., 65% R
Young's modulus of H was 52 kg / mm 2 , it was a hard film with loss of transparency and flexibility, and when dropped from a height of 1 m, the bag burst at the second time.
【００１７】[0017]
【発明の効果】本発明のＰＶＡ系フィルムは、長期間放
置する場合であっても、製造初期の良好な柔軟性を有し
ており、さらに繊維製品を長時間包装する場合であって
も長期間にわたって良好な柔軟性が得られる。本発明の
ＰＶＡ系フィルムは、綿、綿／ポリエステル混紡、純
毛、純毛／アクリル混紡などの天然繊維からなる繊維製
品およびアクリル、ナイロン、ポリエステル、レーヨ
ン、ビニロンなどの合成繊維からなる繊維製品の包装用
に好適であり、特に、毛糸、綿、絹などの天然繊維の包
装用に好適である。EFFECT OF THE INVENTION The PVA film of the present invention has good flexibility in the early stage of production even when it is left for a long period of time. Good flexibility is obtained over time. The PVA-based film of the present invention is used for packaging fiber products made of natural fibers such as cotton, cotton / polyester blended fabrics, pure wool, pure wool / acrylic blended fabrics and synthetic fibers such as acrylic, nylon, polyester, rayon and vinylon. It is particularly suitable for packaging natural fibers such as wool, cotton and silk.
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年７月９日[Submission date] July 9, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１３[Correction target item name] 0013
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１３】実施例１ 重合度１７５０、ケン化度９９．９モル％のＰＶＡ４５
重量部、水５０重量部、グリセリン１．２重量部および
ジグリセリン３．８重量部からなるペレットを用いて、
押出乾式製膜法により、膜厚み４０μｍのＰＶＡフィル
ムロールを作製した。作製したＰＶＡフィルムについ
て、液クロマトグラフィー法により、ＰＶＡフィルム中
のグリセリン含有量とジグリセリン含有量を求めた結
果、ＰＶＡ１００重量部に対するグリセリン含有量２．
４重量部およびジグリセリン含有量８．２重量部であ
り、グリセリンとジグリセリンの配合割合はグリセリン
／ジグリセリン＝２１．２／７８．８であった。得られ
たＰＶＡフィルムのヘイズは１．１％、２０℃，６５％
ＲＨでのヤング率は２５ｋｇ／ｍｍ2であり、透明で柔
軟性に富む性能を示した。次に該ＰＶＡフィルムを用い
て、（株）藤田機械製の溶断製袋機を使用して、寸法２
０ｃｍ×３０ｃｍの袋を作製した。上記の方法により得
られた袋を用い、綿１００％のワイシャツを包装し、３
０℃，８０％ＲＨの環境下に３０日間放置した後、取り
出したＰＶＡフィルムについて液クロマトグラフィー法
により、再びＰＶＡフィルム中のグリセリン含有量とジ
グリセリン含有量を求めた結果、ＰＶＡ１００重量部に
対するグリセリン含有量２．０重量部およびジグリセリ
ン含有量８．０重量部であった。また、ヘイズは１．１
％、２０℃，６５％ＲＨでのヤング率は３０ｋｇ／ｍｍ
2であり、透明性と柔軟性に優れており、１ｍ高さか
ら、繰り返して１０回落下しても袋は破裂しなかった。Example 1 PVA45 having a degree of polymerization of 1750 and a degree of saponification of 99.9 mol%
Parts by weight, 50 parts by weight of water, 1.2 parts by weight of glycerin and 3.8 parts by weight of diglycerin are used,
A PVA film roll having a film thickness of 40 μm was produced by an extrusion dry film forming method. Regarding the produced PVA film, the glycerin content and the diglycerin content in the PVA film were determined by a liquid chromatography method, and as a result, the glycerin content per 100 parts by weight of PVA was 2.
4 parts by weight and the diglycerin content was 8.2 parts by weight, and the mixing ratio of glycerin and diglycerin was glycerin / diglycerin = 21.2 / 78.8. The haze of the obtained PVA film was 1.1%, 20 ° C., 65%
The Young's modulus at RH was 25 kg / mm 2 , and the performance was transparent and highly flexible. Then, the PVA film was used to measure a size of 2 by using a fusing bag making machine manufactured by Fujita Machine Co., Ltd.
A 0 cm × 30 cm bag was prepared. Using the bag obtained by the above method, wrap a 100% cotton shirt and
After being left in an environment of 0 ° C. and 80% RH for 30 days, the PVA film taken out was again subjected to liquid chromatography to determine the glycerin content and the diglycerin content in the PVA film. As a result, 100 parts by weight of PVA was mixed with glycerin. The content was 2.0 parts by weight and the diglycerin content was 8.0 parts by weight. The haze is 1.1.
%, 20 ° C., the Young's modulus at 65% RH 30kg / m m
It was 2 , excellent in transparency and flexibility, and the bag did not burst even if repeatedly dropped 10 times from a height of 1 m.
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１４[Correction target item name] 0014
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１４】比較例１ 実施例１と同様の方法により、重合度１７５０，ケン化
度９９．９モル％のＰＶＡ４５重量部、水５０重量部、
グリセリン４．８重量部およびジグリセリン０．２重量
部からなるペレットを用いて、押出乾式製膜法により、
膜厚み４０μｍのＰＶＡフィルムロールを作製した。作
製したＰＶＡフィルムについて、液クロマトグラフィー
法により、ＰＶＡフィルム中のグリセリン含有量とジグ
リセリン含有量を求めた結果、ＰＶＡ１００重量部に対
するグリセリン含有量１０．０重量部およびジグリセリ
ン含有量０．４重量部であり、グリセリンとジグリセリ
ンの配合割合はグリセリン／ジグリセリン＝９６．２／
３．８であった。得られたＰＶＡフィルムのヘイズは
１．０％、２０℃，６５％ＲＨでのヤング率は２３ｋｇ
／ｍｍ2であり、透明で柔軟性に富む性能を示した。次
に該ＰＶＡフィルムを用いて、（株）藤田機械製の溶断
製袋機を使用して寸法２０ｃｍ×３０ｃｍの袋を作製し
た。上記の方法により得られた袋を用いて、綿１００％
のワイシャツを包装し、３０℃，８０％ＲＨの環境下に
３０日間放置した後取り出したＰＶＡフィルムについ
て、液クロマトグラフィー法により、再びＰＶＡフィル
ム中のグリセリン含有量とジグリセリン含有量を求めた
結果、ＰＶＡ１００重量部に対するグリセリン含有量
４．５重量部およびジグリセリン含有量０．４重量部で
あった。また、ヘイズは１．５％．２０℃，６５％ＲＨ
でのヤング率は９８ｋｇ／ｍｍ2であり、透明性と柔軟
性が失なわれて硬いフィルムであり、１ｍの高さから落
下したところ、１回目で袋が破裂した。Comparative Example 1 By the same method as in Example 1, 45 parts by weight of PVA having a polymerization degree of 1750 and a saponification degree of 99.9 mol%, 50 parts by weight of water,
Using a pellet consisting of 4.8 parts by weight of glycerin and 0.2 parts by weight of diglycerin, by an extrusion dry film-forming method,
A PVA film roll having a film thickness of 40 μm was produced. About the produced PVA film, the glycerin content and the diglycerin content in the PVA film were determined by a liquid chromatography method. As a result, the glycerin content was 10.0 parts by weight and the diglycerin content was 0.4 part by weight with respect to 100 parts by weight of PVA. And the blending ratio of glycerin and diglycerin is glycerin / diglycerin = 96.2 /
It was 3.8. The resulting PVA film had a haze of 1.0% and a Young's modulus of 23 kg at 20 ° C. and 65% RH.
/ Mm 2 , which was transparent and showed a highly flexible performance. Next, using the PVA film, a bag having a size of 20 cm × 30 cm was prepared using a fusing bag making machine manufactured by Fujita Machine Co., Ltd. Using the bag obtained by the above method, 100% cotton
Of the PVA film that was taken out after packaging the shirt of No. 3 and leaving it in an environment of 30 ° C. and 80% RH for 30 days, and again obtaining the glycerin content and the diglycerin content in the PVA film by the liquid chromatography method. The glycerin content was 4.5 parts by weight and the diglycerin content was 0.4 parts by weight with respect to 100 parts by weight of PVA. The haze is 1.5%. 20 ° C, 65% RH
Had a Young's modulus of 98 kg / mm 2 and was a hard film with loss of transparency and flexibility. When dropped from a height of 1 m, the bag burst at the first time.
Claims (2)
して、グリセリン（Ａ）およびジグリセリン（Ｂ）から
なり配合割合（Ａ）／（Ｂ）が２０／８０〜８０／２０
である可塑剤８重量部以上を含有するポリビニルアルコ
ール系フィルム。1. A blending ratio (A) / (B) consisting of glycerin (A) and diglycerin (B) with respect to 100 parts by weight of polyvinyl alcohol, 20/80 to 80/20.
A polyvinyl alcohol-based film containing 8 parts by weight or more of the plasticizer.
フィルムからなる繊維製品包装用フィルム。2. A film for packaging a textile product, which comprises the polyvinyl alcohol film according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16557493A JP3345104B2 (en) | 1993-07-05 | 1993-07-05 | Polyvinyl alcohol film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16557493A JP3345104B2 (en) | 1993-07-05 | 1993-07-05 | Polyvinyl alcohol film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0718145A true JPH0718145A (en) | 1995-01-20 |
| JP3345104B2 JP3345104B2 (en) | 2002-11-18 |
Family
ID=15814949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16557493A Expired - Lifetime JP3345104B2 (en) | 1993-07-05 | 1993-07-05 | Polyvinyl alcohol film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3345104B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002020506A (en) * | 2000-07-07 | 2002-01-23 | Kuraray Co Ltd | Polyvinyl alcohol-based water-soluble film having excellent impact resistance |
| JP2002053674A (en) * | 2000-08-07 | 2002-02-19 | Kuraray Co Ltd | Water-soluble film |
| JP2005179390A (en) * | 2003-12-16 | 2005-07-07 | Nippon Synthetic Chem Ind Co Ltd:The | Water-soluble film |
| US7067575B2 (en) | 2002-11-11 | 2006-06-27 | The Nippon Synthetic Chemical Industry Co., Ltd. | Water-soluble film of polyvinyl alcohol |
| US7217385B2 (en) | 2002-11-15 | 2007-05-15 | Polyval Plc | Polyvinyl alcohol composition and film |
| JP2018030836A (en) * | 2016-08-11 | 2018-03-01 | 星▲彦▼塑膠股▲ふん▼有限公司ＸＩＮＧ ＹＡＮ Ｐｌａｓｔｉｃ Ｃｏ．， Ｌｔｄ． | Cleansing cream containing pva particles, method for producing the same and use thereof |
| KR20190022550A (en) | 2016-06-27 | 2019-03-06 | 닛폰고세이가가쿠고교 가부시키가이샤 | And a method for producing the same, and a polarizing film using the polyvinyl alcohol film for the polarizing film |
| CN111303570A (en) * | 2020-02-13 | 2020-06-19 | 沈阳工业大学 | Degradable composite plasticizer modified PVA and preparation method thereof |
| CN115266966A (en) * | 2022-07-07 | 2022-11-01 | 重庆光谱新材料科技有限公司 | Method for detecting content of dissolved matter of polyvinyl alcohol film |
-
1993
- 1993-07-05 JP JP16557493A patent/JP3345104B2/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002020506A (en) * | 2000-07-07 | 2002-01-23 | Kuraray Co Ltd | Polyvinyl alcohol-based water-soluble film having excellent impact resistance |
| JP2002053674A (en) * | 2000-08-07 | 2002-02-19 | Kuraray Co Ltd | Water-soluble film |
| JP4570742B2 (en) * | 2000-08-07 | 2010-10-27 | 株式会社クラレ | Water-soluble film |
| US7067575B2 (en) | 2002-11-11 | 2006-06-27 | The Nippon Synthetic Chemical Industry Co., Ltd. | Water-soluble film of polyvinyl alcohol |
| US7217385B2 (en) | 2002-11-15 | 2007-05-15 | Polyval Plc | Polyvinyl alcohol composition and film |
| JP2005179390A (en) * | 2003-12-16 | 2005-07-07 | Nippon Synthetic Chem Ind Co Ltd:The | Water-soluble film |
| KR20190022550A (en) | 2016-06-27 | 2019-03-06 | 닛폰고세이가가쿠고교 가부시키가이샤 | And a method for producing the same, and a polarizing film using the polyvinyl alcohol film for the polarizing film |
| JP2018030836A (en) * | 2016-08-11 | 2018-03-01 | 星▲彦▼塑膠股▲ふん▼有限公司ＸＩＮＧ ＹＡＮ Ｐｌａｓｔｉｃ Ｃｏ．， Ｌｔｄ． | Cleansing cream containing pva particles, method for producing the same and use thereof |
| CN111303570A (en) * | 2020-02-13 | 2020-06-19 | 沈阳工业大学 | Degradable composite plasticizer modified PVA and preparation method thereof |
| CN111303570B (en) * | 2020-02-13 | 2023-06-16 | 沈阳工业大学 | Degradable composite plasticizer modified PVA and preparation method thereof |
| CN115266966A (en) * | 2022-07-07 | 2022-11-01 | 重庆光谱新材料科技有限公司 | Method for detecting content of dissolved matter of polyvinyl alcohol film |
| CN115266966B (en) * | 2022-07-07 | 2024-05-07 | 重庆光谱新材料科技有限公司 | Method for detecting content of dissolved matter of polyvinyl alcohol film |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3345104B2 (en) | 2002-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3479308A (en) | Antifogging film comprising vinyl chloride polymer and fatty acid esters | |
| JP6089149B1 (en) | Pharmaceutical packaging film | |
| JPH0718145A (en) | Polyvinyl alcohol-based film | |
| JP7352469B2 (en) | polyvinyl alcohol film | |
| JP7352602B2 (en) | Water-soluble resin composition and water-soluble resin film | |
| JP2001106854A (en) | Resin composition and water-soluble film | |
| JP2024032867A (en) | Water-soluble packaging film | |
| JP2502252B2 (en) | Polyvinyl alcohol film | |
| US10450118B2 (en) | Chemical product packaging film | |
| JPH04151243A (en) | Water-soluble film and package | |
| JP2018184500A (en) | Water-soluble packaging film | |
| JP3010506B2 (en) | Antifogging composition for polyethylene resin film | |
| JPS58101133A (en) | Stretched film | |
| JPH06107874A (en) | Packaging film | |
| JP3238245B2 (en) | Stretch film for food packaging | |
| JP2003321613A (en) | Anti-fogging film | |
| JP2622815B2 (en) | Polyvinyl alcohol-based composition and film produced therefrom | |
| JPS62220552A (en) | Anti-fogging synthetic resin film composition | |
| JP2912149B2 (en) | Polyvinyl alcohol film | |
| JPH0885190A (en) | Non-fogging film | |
| US3082107A (en) | Process of manufacturing water-soluble plastic objects from water-soluble salts of a cellulose acyl sulfate | |
| JP7339721B2 (en) | Water-soluble packaging film | |
| TW513457B (en) | Polyvinyl alcohol film | |
| JPS6025455B2 (en) | Film resin composition for adhesive packaging | |
| JPH04136039A (en) | Polyvinyl alcohol film for packaging alkaline substance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 6 Free format text: PAYMENT UNTIL: 20080830 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090830 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 8 Free format text: PAYMENT UNTIL: 20100830 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110830 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110830 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120830 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120830 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 11 Free format text: PAYMENT UNTIL: 20130830 |
|
| EXPY | Cancellation because of completion of term |