JP3290812B2 - Release paper for synthetic leather production - Google Patents
Release paper for synthetic leather productionInfo
- Publication number
- JP3290812B2 JP3290812B2 JP16013594A JP16013594A JP3290812B2 JP 3290812 B2 JP3290812 B2 JP 3290812B2 JP 16013594 A JP16013594 A JP 16013594A JP 16013594 A JP16013594 A JP 16013594A JP 3290812 B2 JP3290812 B2 JP 3290812B2
- Authority
- JP
- Japan
- Prior art keywords
- methyl
- paper
- release paper
- pentene
- release
- 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 - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は、合成皮革製造用の離型
紙に関し、特に、耐熱性と濡れ性に優れるため、水溶性
または水分散性の樹脂を用いて合成皮革を製造する工程
で使用するのに好適な離型紙に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a release paper for producing synthetic leather, and more particularly to a release paper having excellent heat resistance and wettability, which is used in a process of producing synthetic leather using a water-soluble or water-dispersible resin. To a release paper that is suitable for
【０００２】[0002]
【従来の技術】４−メチル−１−ペンテン系重合体は、
融点が２２０〜２４０℃であるため耐熱性が高く、か
つ、離型性が優れているため、合成皮革製造用の離型紙
やフレキシブルプリント基板製造用の離型フィルムにお
いて、紙、フィルム等の基材上に形成される離型性層の
主成分として広く利用されている。2. Description of the Related Art A 4-methyl-1-pentene polymer is
Since the melting point is from 220 to 240 ° C., the heat resistance is high and the releasability is excellent. Therefore, in a release paper for producing synthetic leather or a release film for producing a flexible printed circuit board, a base material such as paper and film is used. It is widely used as a main component of a release layer formed on a material.
【０００３】ところで、最近、合成皮革の製造の分野で
も環境問題と省資源に対する関心が高まり、合成皮革の
原料樹脂として水溶性または水分散性の樹脂が注目を浴
びるようになった。このような水溶性または水分散性の
樹脂を原料樹脂とする合成皮革の製造において用いられ
る離型紙の離型性層には、生産性向上のために高い耐熱
性と水溶性または水分散性の樹脂に対する適度な濡れ性
が要求される。[0003] Recently, in the field of synthetic leather production, attention has been paid to environmental issues and resource saving, and water-soluble or water-dispersible resins have been receiving attention as raw materials for synthetic leather. The release layer of release paper used in the production of synthetic leather using such a water-soluble or water-dispersible resin as a raw material resin has high heat resistance and water-soluble or water-dispersible properties for improving productivity. Appropriate wettability to resin is required.
【０００４】[0004]
【発明が解決しようとする課題】しかし、従来の４−メ
チル−１−ペンテン系重合体を離型剤として用いた離型
紙（特開平２−３０７９８５号公報）は、前記の用途に
対しても十分な耐熱性を発揮する反面、水溶性または水
分散性の樹脂に対して濡れ性が低いため濡れ不良部が発
生する。このため、従来の４−メチル−１−ペンテン系
重合体からなる離型性層を有する離型紙では、高品質の
合成皮革を製造することが難しい。一方、ポリプロピレ
ンからなる離型性層を有する離型紙は、ある程度の濡れ
性は有するものの耐熱性が不足している。However, a release paper using a conventional 4-methyl-1-pentene polymer as a release agent (Japanese Patent Application Laid-Open No. 2-307985) is not suitable for the above-mentioned applications. While exhibiting sufficient heat resistance, poor wettability occurs due to low wettability with a water-soluble or water-dispersible resin. Therefore, it is difficult to produce high-quality synthetic leather with a release paper having a release layer made of a conventional 4-methyl-1-pentene polymer. On the other hand, release paper having a release layer made of polypropylene has some wettability but lacks heat resistance.
【０００５】また、合成皮革製造用の離型紙は、一般
に、何度も繰り返し使用されるため、離型性層と紙基材
の間の接着強度が高いことが必須とされる。したがっ
て、耐熱性と濡れ性の両方の特性を満足し、かつ、離型
性層と紙基材の間の接着強度も高い、水溶性または水分
散性の樹脂を用いた合成皮革の製造に適した離型紙が強
く求められていた。[0005] Since release paper for producing synthetic leather is generally used many times, it is essential that the adhesive strength between the release layer and the paper substrate be high. Therefore, it is suitable for the production of synthetic leather using a water-soluble or water-dispersible resin that satisfies both the properties of heat resistance and wettability, and has high adhesive strength between the release layer and the paper substrate. Release paper was strongly sought.
【０００６】そこで、本発明の第１の目的は、耐熱性と
適度な濡れ性を有する、水溶性または水分散性の樹脂を
用いた合成皮革の製造に適した離型紙を提供することに
ある。Accordingly, a first object of the present invention is to provide a release paper suitable for producing synthetic leather using a water-soluble or water-dispersible resin having heat resistance and moderate wettability. .
【０００７】本発明の第２の目的は、繰り返し使用でき
るように樹脂と紙の接着強度が高い、合成皮革製造用の
離型紙を提供することにある。A second object of the present invention is to provide a release paper for producing synthetic leather, which has high adhesive strength between resin and paper so that it can be used repeatedly.
【０００８】[0008]
【課題を解決するための手段】かかる状況に鑑み、耐熱
性が優れた４−メチル−１−ペンテン系重合体をベース
として、水溶性または水分散性の樹脂を用いて合成皮革
を製造するのに適した離型紙を開発することを目的とし
て種々の検討を行った。SUMMARY OF THE INVENTION In view of such circumstances, a synthetic leather is manufactured using a water-soluble or water-dispersible resin based on a 4-methyl-1-pentene polymer having excellent heat resistance. Various studies were carried out for the purpose of developing a release paper suitable for the application.
【０００９】すなわち、本発明は、紙基材と該紙基材上
に積層された離型性層とを有する離型紙であって、前記
離型性層が、（Ａ）４−メチル−１−ペンテン系重合体
８０〜９７重量部、および（Ｂ）エチレン・エチルアク
リレート共重合体３〜２０重量部を含む４−メチル−１
−ペンテン系重合体組成物からなる合成皮革製造用の離
型紙を提供するものである。That is, the present invention is a release paper having a paper base and a release layer laminated on the paper base, wherein the release layer comprises (A) 4-methyl-1 4-methyl-1 containing 80 to 97 parts by weight of a pentene polymer and 3 to 20 parts by weight of (B) an ethylene / ethyl acrylate copolymer
-To provide a release paper comprising a pentene polymer composition for producing synthetic leather.
【００１０】以下、本発明の合成皮革製造用の離型紙
（以下、「本発明の離型紙」という）について詳細に説
明する。Hereinafter, the release paper for producing synthetic leather of the present invention (hereinafter referred to as “release paper of the present invention”) will be described in detail.
【００１１】本発明の離型紙は、紙基材と、該紙基材の
上に積層された離型性層とを有するものである。離型性
層は、紙基材の片面に積層されていてもよいし、両面に
積層されていてもよい。The release paper of the present invention has a paper base and a release layer laminated on the paper base. The release layer may be laminated on one side of the paper substrate, or may be laminated on both sides.
【００１２】本発明において、紙基材としては、クラフ
ト紙、上質紙、模造紙、アート紙、コート紙等が用いら
れる。また、この紙基材の坪量は、通常、８０〜２００
ｇ／ｍ2 程度である。In the present invention, kraft paper, woodfree paper, imitation paper, art paper, coated paper and the like are used as the paper base material. The basis weight of the paper substrate is usually 80 to 200.
g / m 2 .
【００１３】また、離型性層は、（Ａ）４−メチル−１
−ペンテン系重合体と、エチレン・エチルアクリレート
とを含む４−メチル−１−ペンテン系重合体組成物から
なるものである。この離型性層の厚さは、通常、１〜５
０μｍ程度であり、５〜４０μｍの範囲が好ましい。Further, the release layer comprises (A) 4-methyl-1
-A 4-methyl-1-pentene polymer composition containing a pentene polymer and ethylene / ethyl acrylate. The thickness of the release layer is usually 1 to 5
It is about 0 μm, preferably in the range of 5 to 40 μm.
【００１４】離型性層を形成する４−メチル−１−ペン
テン系重合体組成物の（Ａ）成分である４−メチル−１
−ペンテン系重合体は、４−メチル−１−ペンテンの単
独重合体、または４−メチル−１−ペンテンと他のα−
オレフィンとの共重合体である。他のα−オレフィンと
しては、例えば、エチレン、プロピレン、１−ブテン、
１−ヘキセン、１−オクテン、１−デセン、１−ドデセ
ン、１−テトラデセン、１−ヘキサデセン、１−オクタ
デセン、１−エイコセン等の炭素数２〜２０のα−オレ
フィンが挙げられ、これらの中でも、１−デセン、１−
ドデセン、１−テトラデセン、１−ヘキサデセン、１−
オクタデセンあるいは１−エイコセンが好ましい。この
４−メチル−１−ペンテン系重合体は、適正な融点を有
し、良好な耐熱性を有する点で、４−メチル−１−ペン
テンを８０重量％以上含む重合体が好ましい。The 4-methyl-1-pentene polymer composition for forming a release layer, which is the component (A), 4-methyl-1
The pentene-based polymer is a homopolymer of 4-methyl-1-pentene, or 4-methyl-1-pentene and another α-pentene;
It is a copolymer with olefin. As other α-olefins, for example, ethylene, propylene, 1-butene,
1-hexene, 1-octene, 1-decene, 1-dodecene, 1-tetradecene, 1-hexadecene, 1-octadecene, 1-eicosene and the like having 2 to 20 carbon atoms such as α-olefins. 1-decene, 1-
Dodecene, 1-tetradecene, 1-hexadecene, 1-
Octadecene or 1-eicosene is preferred. The 4-methyl-1-pentene polymer is preferably a polymer containing 80% by weight or more of 4-methyl-1-pentene because it has an appropriate melting point and good heat resistance.
【００１５】この４−メチル−１−ペンテン系重合体
は、４−メチル−１−ペンテン系重合体組成物の延展性
が適正な範囲となり、かつ適正な粘度を有するためラミ
ネーション成形時の耳揺れ等の生産性を低下させるトラ
ブルもなく、高速でラミネーション成形することがで
き、厚さが均一で、離型性層の割れがなく、離型性層と
紙材層との接着強度に優れた離型紙を容易に製造するこ
とができる点で、メルトフローレート（ＭＦＲ）が、１
〜４００ｇ／１０分の範囲内にあるものが好ましく、特
に、１０〜３００ｇ／１０分であるものが、好ましい。
本発明において、メルトフローレート（ＭＦＲ）は、Ａ
ＳＴＭ Ｄ１２３８に準じ荷重：５．０ｋｇ、温度：２
６０℃の条件で測定した値である。The 4-methyl-1-pentene-based polymer has a spreadability of the 4-methyl-1-pentene-based polymer composition within an appropriate range and has an appropriate viscosity. Lamination molding can be performed at high speed without troubles such as productivity reduction, uniform thickness, no cracking of release layer, and excellent adhesive strength between release layer and paper material layer. Since the release paper can be easily manufactured, the melt flow rate (MFR) is 1
It is preferably in the range of ４００400 g / 10 min, and particularly preferably in the range of 10３００300 g / 10 min.
In the present invention, the melt flow rate (MFR) is A
Load: 5.0 kg, temperature: 2 according to STM D1238
It is a value measured under the condition of 60 ° C.
【００１６】また、４−メチル−１−ペンテン系重合体
組成物の（Ｂ）成分であるエチレン・エチルアクリレー
ト共重合体は、エチレンとエチルアクリレートの共重合
体である。このエチレン・エチルアクリレート共重合体
は、濡れ性に優れる離型性層が得られ、かつ成形時のメ
ルトテンションが適正な範囲となり、ネックインの増大
等の生産性を低下させる問題もない４−メチル−１−ペ
ンテン系重合体組成物が得られる点で、エチルアクリレ
ートの含有量が１０〜４０重量％の範囲にあるものが好
ましく、特に１５〜３０重量％の範囲にあるものが好ま
しい。また、このエチレン・エチルアクリレート共重合
体は、通常、ＭＦＲが１〜５０ｇ／１０分であるものが
好ましく、特に、３〜３０ｇ／１０分であるものが好ま
しい。The ethylene / ethyl acrylate copolymer, which is the component (B) of the 4-methyl-1-pentene polymer composition, is a copolymer of ethylene and ethyl acrylate. The ethylene / ethyl acrylate copolymer has a problem that a release layer having excellent wettability can be obtained, the melt tension during molding falls within an appropriate range, and productivity such as increase in neck-in decreases. From the viewpoint that a methyl-1-pentene polymer composition is obtained, the content of ethyl acrylate is preferably in the range of 10 to 40% by weight, particularly preferably in the range of 15 to 30% by weight. In addition, the ethylene / ethyl acrylate copolymer generally preferably has an MFR of 1 to 50 g / 10 minutes, particularly preferably 3 to 30 g / 10 minutes.
【００１７】４−メチル−１−ペンテン系重合体組成物
中の（Ａ）４−メチル−１−ペンテン系重合体と、
（Ｂ）エチレン・エチルアクリレート共重合体の配合割
合は、濡れ性に優れ、かつ、耐熱性および離型性に優れ
る離型性層が得られる点で、（Ａ）４−メチル−１−ペ
ンテン系重合体８０〜９７重量部に対して、（Ｂ）エチ
レン・エチルアクリレート共重合体３〜２０重量部の割
合であり、好ましくは（Ａ）４−メチル−１−ペンテン
系重合体８５〜９５重量部に対して、（Ｂ）エチレン・
エチルアクリレート共重合体５〜１５重量部の割合であ
る。(A) a 4-methyl-1-pentene polymer in a 4-methyl-1-pentene polymer composition;
(B) The mixing ratio of the ethylene / ethyl acrylate copolymer is such that (A) 4-methyl-1-pentene is excellent in that a release layer having excellent wettability and excellent heat resistance and release properties is obtained. The proportion of the ethylene-ethyl acrylate copolymer (B) is 3 to 20 parts by weight with respect to the polymer of 80 to 97 parts by weight, and preferably the (A) 4-methyl-1-pentene polymer 85 to 95 is used. (B) ethylene
It is a ratio of 5 to 15 parts by weight of the ethyl acrylate copolymer.
【００１８】エチレン・エチルアクリレート共重合体の
配合量は３〜２０重量部が好ましく、５〜１５重量部が
特に好ましい。The blending amount of the ethylene / ethyl acrylate copolymer is preferably 3 to 20 parts by weight, particularly preferably 5 to 15 parts by weight.
【００１９】また、この４−メチル−１−ペンテン系重
合体組成物には、前記（Ａ）４−メチル−１−ペンテン
系重合体および（Ｂ）エチレン・エチルアクリレート共
重合体以外に、必要に応じて、ポリオレフィン等に配合
される各種配合剤を配合してもよい。例えば、シランカ
ップリング剤、耐候安定剤、耐熱安定剤、スリップ剤、
核剤、顔料、染料等の通常ポリオレフィンに添加して使
用される各種配合剤を本発明の目的を損なわない範囲で
配合してもよい。In addition to the (A) 4-methyl-1-pentene polymer and (B) the ethylene / ethyl acrylate copolymer, the 4-methyl-1-pentene polymer composition contains According to the above, various compounding agents to be mixed with the polyolefin and the like may be compounded. For example, silane coupling agent, weather stabilizer, heat stabilizer, slip agent,
Various compounding agents, such as nucleating agents, pigments and dyes, which are usually used by being added to polyolefin, may be compounded within a range not to impair the object of the present invention.
【００２０】本発明の離型紙の製造は、（Ａ）４−メチ
ル−１−ペンテン系重合体および（Ｂ）エチレン・エチ
ルアクリレート共重合体、ならびに必要に応じて配合さ
れる各種配合剤等を、所定の配合割合で、混合機または
公知の方法で混合する。次に、得られた混合物を混練機
に供給し溶融混練して４−メチル−１−ペンテン系重合
体組成物を調製し、この４−メチル−１−ペンテン系重
合体組成物を、紙基材上にラミネーション成形する方法
にしたがって行うことができる。用いられる混合機とし
ては、例えば、Ｖブレンダー、リボンブレンダー、ヘン
シェルミキサー、タンブラーブレンダー等が挙げられ
る。また、混練機としては、例えば、単軸押出機、複軸
押出機、ニーダー、バンバリーミキサー等が挙げられ
る。ラミネーション成形は、紙基材と溶融した４−メチ
ル−１−ペンテン系重合体組成物とをシングルラミネー
ターによって押出コーティングして、紙基材上に４−メ
チル−１−ペンテン系重合組成物からなる離型性層を形
成する方法にしたがって行うことができる。The production of the release paper of the present invention comprises (A) a 4-methyl-1-pentene-based polymer and (B) an ethylene / ethyl acrylate copolymer, and various compounding agents to be compounded if necessary. The mixture is mixed at a predetermined mixing ratio by a mixer or a known method. Next, the obtained mixture is supplied to a kneader and melt-kneaded to prepare a 4-methyl-1-pentene polymer composition, and the 4-methyl-1-pentene polymer composition is mixed with a paper base. It can be performed according to a method of lamination molding on a material. Examples of the mixer used include a V blender, a ribbon blender, a Henschel mixer, and a tumbler blender. Examples of the kneader include a single screw extruder, a double screw extruder, a kneader, and a Banbury mixer. Lamination molding comprises extrusion coating a paper base and a molten 4-methyl-1-pentene-based polymer composition with a single laminator to form a 4-methyl-1-pentene-based polymer composition on a paper base. It can be performed according to the method of forming a release layer.
【００２１】[0021]
【実施例】以下、本発明について実施例にしたがって説
明するが、本発明はその要旨を越えない限りこれらの実
施例になんら限定されるものではない。EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited to these examples unless it exceeds the gist.
【００２２】実施例で得られた離型紙は、下記の方法に
したがって、濡れ性、接着強度、繰り返し使用性、およ
び接触角について評価または測定した。The release paper obtained in the examples was evaluated or measured for wettability, adhesive strength, repetitive use, and contact angle according to the following methods.
【００２３】離型紙の特性の評価 濡れ性 離型紙の表面に、脂肪族ポリエステルポリウレタン水分
散液（バイエル社製）を、ワイヤーバー（♯１６）に沿
って滴下し、溶剤乾燥後の塗膜の厚さが１０μｍとなる
ように塗布したとき、濡れ不良部の発生の有無により下
記の基準で評価した。 ○……濡れ不良部なし ×……濡れ不良部あり 離型性層と紙基材の間の接着強度 離型紙から幅１５ｍｍの短冊状の試験片を作成し、引張
試験機を用いて１８０゜の剥離試験を３００ｍｍ／分の
試験速度で行って離型性層と紙基材の間の接着強度を測
定した。 繰り返し使用性 上記の濡れ性の試験を、同一の離型紙について繰り返
し行い、濡れ不良部が発生するまでの繰り返し回数を、
繰り返し使用性の指標とした。 接触角 離型紙の水に対する接触角を、接触角測定装置（協和界
面科学（株）、ＣＡ−ＳミクロＩＩ型）を用いて、２３
℃で測定した。Evaluation of Properties of Release Paper Wettability An aqueous dispersion of aliphatic polyester polyurethane (manufactured by Bayer) was dropped on the surface of the release paper along a wire bar (# 16) to form a coating film after drying the solvent. When the coating was applied to a thickness of 10 μm, the following criteria were used to evaluate whether or not poor wetting occurred. …: No defective wetting area ×: Defective wetting area Adhesive strength between release layer and paper base A strip-shaped test piece with a width of 15 mm was prepared from release paper, and 180 ° in tension using a tensile tester. Was performed at a test speed of 300 mm / min to measure the adhesive strength between the release layer and the paper substrate. Repeatability The above-mentioned wettability test is repeated for the same release paper, and the number of repetitions until a wetting failure portion occurs is calculated as follows:
It was used as an index for repeated use. Contact angle The contact angle of the release paper with water was measured using a contact angle measuring device (Kyowa Interface Science Co., Ltd., CA-S Micro II type).
Measured in ° C.
【００２４】（実施例１）４−メチル−１−ペンテン・
１−デセン共重合体（１−デセン含有量：２．２重量
％、ＭＦＲ：１８０ｇ／１０分）のペレット９０重量部
と、エチレン・エチルアクリレート共重合体（三井・デ
ュポンポリケミカル（株）製、エバフレックス−ＥＥＡ
−Ａ７０２、エチルアクリレート含有量：１９重量％、
ＭＦＲ：５ｇ／１０分）１０重量部とを、ヘンシェルミ
キサーに供給して高速で１分間混合した。得られた混合
物を二軸押出機に供給し２６０℃で溶融混練して、４−
メチル−１−ペンテン系重合体組成物を調製した。この
組成物を用いて下記の成形条件で共押出成形法によりラ
ミネーション成形して、紙基材の上に厚さ３０μｍの離
型性層を有する離型紙を製造した。 離型紙の成形条件 シリンダー温度 Ｃ1 ／Ｃ2 ／Ｃ3 ／Ｃ4 ／ダイス ３００／３５０／３２０／３２０／ ３２０℃ ダイス幅 ５００ｍｍ 紙基材 北越製紙（株）製、 坪量１２５ｇ／ｍ2 離型性層の厚さ ３０μｍ 成形速度 ５０ｍ／分 得られた離型紙の濡れ性、離型性層と紙基材との間の接
着強度、繰り返し使用性および接触角を評価または測定
した。結果を表１に示す。Example 1 4-Methyl-1-pentene
90 parts by weight of a pellet of a 1-decene copolymer (1-decene content: 2.2% by weight, MFR: 180 g / 10 minutes) and an ethylene / ethyl acrylate copolymer (manufactured by Mitsui / Dupont Polychemical Co., Ltd.) , Evaflex-EEA
-A702, ethyl acrylate content: 19% by weight,
(MFR: 5 g / 10 minutes) and 10 parts by weight thereof were supplied to a Henschel mixer and mixed at high speed for 1 minute. The obtained mixture is supplied to a twin-screw extruder and melt-kneaded at 260 ° C.
A methyl-1-pentene polymer composition was prepared. This composition was subjected to lamination molding by a co-extrusion molding method under the following molding conditions to produce a release paper having a release layer having a thickness of 30 μm on a paper substrate. Release paper molding conditions Cylinder temperature C1 / C2 / C3 / C4 / die 300/350/320/320/ 320 ℃ die width 500mm paper substrate Hokuetsu Paper Mills Co., basis weight 125 g / m 2 the release layer Thickness: 30 μm Molding speed: 50 m / min The wettability of the obtained release paper, the adhesive strength between the release layer and the paper substrate, the repetitive usability, and the contact angle were evaluated or measured. Table 1 shows the results.
【００２５】（実施例２）４−メチル−１−ペンテン・
１−デセン共重合体（１−デセン含有量：２．２重量
％、ＭＦＲ：１８０ｇ／１０分）のペレット９０重量部
と、エチレン・エチルアクリレート共重合体（三井・デ
ュポンポリケミカル（株）製、エバフレックス−ＥＥＡ
−Ａ７０３、エチルアクリレート含有量：２５重量％、
ＭＦＲ：５ｇ／１０分）１０重量部とを、ヘンシェルミ
キサーに供給して高速で１分間混合した。得られた混合
物を二軸押出機を供給し２６０℃で溶融混練して、４−
メチル−１−ペンテン系重合体組成物を調製した。この
組成物を用いてシングルラミネーターでラミネーション
成形して、紙基材の上に厚さ３０μｍの離型性層を有す
る離型紙を製造した。得られた離型紙の濡れ性、離型性
層と紙基材の間の接着強度、繰り返し使用性および接触
角を評価または測定した。結果を表１に示す。Example 2 4-Methyl-1-pentene
90 parts by weight of a pellet of a 1-decene copolymer (1-decene content: 2.2% by weight, MFR: 180 g / 10 minutes) and an ethylene / ethyl acrylate copolymer (manufactured by Mitsui / Dupont Polychemical Co., Ltd.) , Evaflex-EEA
-A703, ethyl acrylate content: 25% by weight,
(MFR: 5 g / 10 minutes) and 10 parts by weight thereof were supplied to a Henschel mixer and mixed at high speed for 1 minute. The resulting mixture is fed to a twin-screw extruder and melt-kneaded at 260 ° C.
A methyl-1-pentene polymer composition was prepared. The composition was subjected to lamination molding with a single laminator to produce a release paper having a release layer having a thickness of 30 μm on a paper substrate. The wettability of the obtained release paper, the adhesive strength between the release layer and the paper substrate, the reusability, and the contact angle were evaluated or measured. Table 1 shows the results.
【００２６】（実施例３）４−メチル−１−ペンテン・
１−デセン共重合体（１−デセン含有量：２．２重量
％、ＭＦＲ：１８０ｇ／１０分）のペレット９０重量部
と、エチレン・エチルアクリレート共重合体（三井・デ
ュポンポリケミカル（株）製、エバフレックス−ＥＥＡ
−Ａ７０２、エチルアクリレート含有量：１９重量％、
ＭＦＲ：５ｇ／１０分）１５重量部とを、ヘンシェルミ
キサーに供給して高速で１分間混合した。得られた混合
物を二軸押出機に供給し２６０℃で溶融混練して、４−
メチル−１−ペンテン系重合体組成物を調製した。この
組成物を用いてシングルラミネーターでラミネーション
成形して、紙基材の上に厚さ３０μｍの離型性層を有す
る離型紙を製造した。得られた離型紙の濡れ性、離型性
層と紙基材の間の接着強度、繰り返し使用性および接触
角を評価または測定した。結果を表１に示す。Example 3 4-Methyl-1-pentene
90 parts by weight of a pellet of a 1-decene copolymer (1-decene content: 2.2% by weight, MFR: 180 g / 10 minutes) and an ethylene / ethyl acrylate copolymer (manufactured by Mitsui / Dupont Polychemical Co., Ltd.) , Evaflex-EEA
-A702, ethyl acrylate content: 19% by weight,
(MFR: 5 g / 10 min) was fed to a Henschel mixer and mixed at high speed for 1 min. The obtained mixture is supplied to a twin-screw extruder and melt-kneaded at 260 ° C.
A methyl-1-pentene polymer composition was prepared. The composition was subjected to lamination molding with a single laminator to produce a release paper having a release layer having a thickness of 30 μm on a paper substrate. The wettability of the obtained release paper, the adhesive strength between the release layer and the paper substrate, the reusability, and the contact angle were evaluated or measured. Table 1 shows the results.
【００２７】（比較例１）４−メチル−１−ペンテン・
１−デセン共重合体（１−デセン含有量：２．２重量
％、ＭＦＲ：１８０ｇ／１０分）のペレットのみを用い
て、厚さ３０μｍの単層ラミネーション紙を成形し、そ
の濡れ性、離型性層と紙基材との間の接着強度、繰り返
し使用性および接触角を評価または測定した。結果を表
１に示す。Comparative Example 1 4-Methyl-1-pentene
Using only the pellets of the 1-decene copolymer (1-decene content: 2.2% by weight, MFR: 180 g / 10 minutes), a single-layer lamination paper having a thickness of 30 μm was formed, and its wettability and release property were measured. The adhesive strength, repeatability and contact angle between the moldable layer and the paper substrate were evaluated or measured. Table 1 shows the results.
【００２８】（比較例２）エチレン・エチルアクリレー
ト共重合体の代わりに、エチレン・アクリル酸共重合体
（三井石油化学工業（株）製、ニュークレル１２０７
Ｃ）を用いた以外は、実施例１と同様にして離型紙を成
形し、その濡れ性、離型性層と紙基材との間の接着強
度、繰り返し使用性および接触角を評価または測定し
た。結果を表１に示す。(Comparative Example 2) Instead of the ethylene / ethyl acrylate copolymer, an ethylene / acrylic acid copolymer (Nucrel 1207, manufactured by Mitsui Petrochemical Industries, Ltd.)
A release paper was formed in the same manner as in Example 1 except that C) was used, and the wettability, the adhesive strength between the release layer and the paper substrate, the repetitive usability and the contact angle were evaluated or measured. did. Table 1 shows the results.
【００２９】（比較例３）エチレン・エチルアクリレー
ト共重合体の代わりに、アイオノマー（三井石油化学工
業（株）製、ハイミラン１６５２）を用いた以外は、実
施例１と同様にして離型紙を成形し、その濡れ性、離型
性層と紙基材との間の接着強度、繰り返し使用性および
接触角を評価または測定した。結果を表１に示す。Comparative Example 3 A release paper was formed in the same manner as in Example 1 except that an ionomer (Himilan 1652, manufactured by Mitsui Petrochemical Industries, Ltd.) was used instead of the ethylene / ethyl acrylate copolymer. Then, the wettability, the adhesive strength between the release layer and the paper substrate, the reusability and the contact angle were evaluated or measured. Table 1 shows the results.
【００３０】 [0030]
【００３１】[0031]
【発明の効果】本発明の離型紙は、耐熱性と適度な濡れ
性を有するため、水溶性または水分散性の樹脂を用いて
合成皮革を製造する際の離型紙に好適に使用できる。Since the release paper of the present invention has heat resistance and moderate wettability, it can be suitably used as a release paper for producing synthetic leather using a water-soluble or water-dispersible resin.
【００３２】また、本発明の離型紙は、高温においても
離型性層と紙基材との接着強度が高いため、水溶性また
は水分散性の樹脂を用いて合成皮革を製造する際、繰り
返し使用できるため、製造コストを低減できる。Further, since the release paper of the present invention has a high adhesive strength between the release layer and the paper base even at a high temperature, the release paper is repeatedly used when producing a synthetic leather using a water-soluble or water-dispersible resin. Since it can be used, manufacturing costs can be reduced.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 有 田 圭 介 東京都新宿区市谷加賀町一丁目１番１号 大日本印刷株式会社内 (72)発明者 橋 川 淳 一 東京都新宿区市谷加賀町一丁目１番１号 大日本印刷株式会社内 (72)発明者 牛 尼 進 東京都新宿区市谷加賀町一丁目１番１号 大日本印刷株式会社内 (56)参考文献 特開 平５−104694（ＪＰ，Ａ) 特開 平２−307985（ＪＰ，Ａ) 特開 平３−73588（ＪＰ，Ａ) 特開 平２−175247（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B32B 1/00 - 35/00 D06N 3/00 - 3/18 D21H 27/00 - 27/42 ──────────────────────────────────────────────────続 き Continued on the front page (72) Keisuke Arita, Inventor 1-1-1, Ichigaya-Kagacho, Shinjuku-ku, Tokyo Inside Dai Nippon Printing Co., Ltd. (72) Inventor Junichi Hashikawa, Ichigaya-Kaga, Shinjuku-ku, Tokyo 1-1-1, Machi, Dai Nippon Printing Co., Ltd. (72) Inventor Susumu Ushi 1-1-1, Ichigaya, Kagacho, Shinjuku-ku, Tokyo Dai-Nippon Printing Co., Ltd. 104694 (JP, A) JP-A-2-307985 (JP, A) JP-A-3-73588 (JP, A) JP-A-2-175247 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B32B 1/00-35/00 D06N 3/00-3/18 D21H 27/00-27/42
Claims (4)
とを有する離型紙であって、前記離型性層が、（Ａ）４
−メチル−１−ペンテン系重合体８０〜９７重量部、お
よび（Ｂ）エチレン・エチルアクリレート共重合体３〜
２０重量部を含む４−メチル−１−ペンテン系重合体組
成物からなる合成皮革製造用の離型紙。1. A release paper having a paper substrate and a release layer laminated on the paper substrate, wherein the release layer is (A) 4
80 to 97 parts by weight of -methyl-1-pentene-based polymer and (B) ethylene-ethyl acrylate copolymer 3 to
Release paper for producing synthetic leather, comprising 20 parts by weight of a 4-methyl-1-pentene polymer composition.
が、４−メチル−１−ペンテンの含有量が８０重量％以
上のものである請求項１に記載の合成皮革製造用の離型
紙。2. The release paper for producing synthetic leather according to claim 1, wherein the 4-methyl-1-pentene polymer has a 4-methyl-1-pentene content of 80% by weight or more. .
が、４−メチル−１−ペンテンと、１−デセン、１−ド
デセン、１−テトラデセン、１−ヘキサデセンおよび１
−オクタデセンから選ばれる少なくとも１種のα−オレ
フィンとのランダム共重合体である請求項１に記載の合
成皮革製造用の離型紙。3. The 4-methyl-1-pentene polymer comprises 4-methyl-1-pentene, 1-decene, 1-dodecene, 1-tetradecene, 1-hexadecene and 1-decene.
The release paper for producing synthetic leather according to claim 1, which is a random copolymer with at least one α-olefin selected from -octadecene.
体が、エチルアクリレートの含有量が１０〜４０重量％
のものである請求項１に記載の合成皮革製造用の離型
紙。4. The ethylene / ethyl acrylate copolymer has an ethyl acrylate content of 10 to 40% by weight.
The release paper for producing synthetic leather according to claim 1,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16013594A JP3290812B2 (en) | 1994-07-12 | 1994-07-12 | Release paper for synthetic leather production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16013594A JP3290812B2 (en) | 1994-07-12 | 1994-07-12 | Release paper for synthetic leather production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0825580A JPH0825580A (en) | 1996-01-30 |
| JP3290812B2 true JP3290812B2 (en) | 2002-06-10 |
Family
ID=15708636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16013594A Expired - Fee Related JP3290812B2 (en) | 1994-07-12 | 1994-07-12 | Release paper for synthetic leather production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3290812B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4130300B2 (en) * | 2000-11-29 | 2008-08-06 | 三井化学株式会社 | Release paper for synthetic leather production |
| JP4808321B2 (en) * | 2001-03-14 | 2011-11-02 | 三井化学株式会社 | Aqueous dispersion of 4-methyl-1-pentene polymer |
| JP3839299B2 (en) * | 2001-10-19 | 2006-11-01 | 三井化学株式会社 | High heat-resistant flexible leather release paper |
| JP5127158B2 (en) * | 2006-04-06 | 2013-01-23 | 三井・デュポンポリケミカル株式会社 | Methylpentene polymer resin composition for release layer of release paper, film or sheet thereof, and laminate containing the resin composition layer |
| CN111902278A (en) | 2018-03-29 | 2020-11-06 | 琳得科株式会社 | Laminate and engineering paper |
-
1994
- 1994-07-12 JP JP16013594A patent/JP3290812B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0825580A (en) | 1996-01-30 |
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