JP2832308B2 - Method for producing porous film and moisture permeable sheet material by the method - Google Patents
Method for producing porous film and moisture permeable sheet material by the methodInfo
- Publication number
- JP2832308B2 JP2832308B2 JP572790A JP572790A JP2832308B2 JP 2832308 B2 JP2832308 B2 JP 2832308B2 JP 572790 A JP572790 A JP 572790A JP 572790 A JP572790 A JP 572790A JP 2832308 B2 JP2832308 B2 JP 2832308B2
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- leather
- film
- sheet material
- powder
- 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
【発明の詳細な説明】 （産業上の利用分野） 本発明は、合成樹脂皮膜を多孔質構造とする方法とそ
の方法を利用し、透湿性、吸排湿性に優れ、かつ柔らか
い感触を持った樹脂皮膜および塗装面、並びにこれらの
性質を具備した透湿性シート材を提供するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method of forming a synthetic resin film having a porous structure and a resin having excellent softness and moisture permeability, utilizing the method. An object of the present invention is to provide a film and a painted surface, and a moisture-permeable sheet material having these properties.
（従来技術） 多孔質構造を有する樹脂皮膜を造るには、デンプンな
どを樹脂に混入した後、これらを溶出させる方法のほ
か、分解型発泡剤を使用したり、樹脂の重合過程でガス
を生成させて発泡させるなどの方法があった。(Prior art) To form a resin film having a porous structure, a method of mixing starch and the like into a resin and then eluting them, using a decomposable foaming agent, or generating gas during the polymerization process of the resin And foaming.
しかしながら、これら従来方法で樹脂皮膜を多孔質化
しても気泡のほとんどが独立気泡か、あるいは連続気泡
となる。したがって、このようにして造られた樹脂皮膜
および樹脂塗膜は、透湿性、吸排湿性が無く、感触に於
いても冷たい感じで、天然物に近い風合という要求には
ほど遠いものであった。However, even if the resin film is made porous by these conventional methods, most of the cells are closed cells or open cells. Therefore, the resin film and the resin film formed in this manner have no moisture permeability and moisture absorption / exhaustability, are cold to the touch, and are far from the demand for a feeling close to a natural product.
（課題を解決するための手段） 本発明の特徴手段は、天然皮革片を密閉した圧力容器
内で蒸気により加熱と同時に加圧した後、該圧力容器を
瞬間的に開放減圧させて皮革片を膨化させ、更に乾燥、
粉砕して得た皮革粉末を合成樹脂液に混入し、該合成樹
脂液を対象基材に塗布、あるいは該合成樹脂液に対象基
材を浸漬した後、該合成樹脂液を凝固させ、これを温水
または熱湯に浸して皮革粉末の一部を溶出させることに
より、ミクロン単位の微細な多孔質構造を有する樹脂皮
膜とすることにあり、更には溶けずに残った皮革粉末の
持つ固有の特性、すなわち吸放湿性機能、透湿性などを
付与させるものである。また、該製法により吸排湿性、
透湿性などを具備した繊維状シート材を造り出すことに
ある。(Means for Solving the Problems) The characteristic means of the present invention is that a natural leather piece is heated and pressurized simultaneously with steam in a sealed pressure vessel, and then the pressure vessel is instantaneously opened and depressurized to reduce the leather piece. Swelling and drying,
The leather powder obtained by pulverization is mixed into a synthetic resin liquid, and the synthetic resin liquid is applied to a target base material, or the target base material is immersed in the synthetic resin liquid, and the synthetic resin liquid is coagulated. By immersing the leather powder in hot or hot water to elute a part of the leather powder, the resin film has a fine porous structure in micron units. That is, it imparts a moisture absorbing / releasing function, moisture permeability and the like. In addition, moisture absorption and drainage by the manufacturing method,
It is to produce a fibrous sheet material having moisture permeability and the like.
（作用） 本発明は、水分を含んだ皮革を高温蒸気の雰囲気に晒
すと、皮革を構成するコラーゲンの一部がゼラチン質に
近い物性となり、比較的容易に温水または熱湯に溶ける
性質を利用したもので、水分を含む天然皮革片を密閉し
た圧力容器内で蒸気により加熱と同時に加圧させると、
該容器内は高温多湿状態となり、所定時間後には皮革片
はゼラチン化している部分と未変性のコラーゲン組織と
に変性する。なお、この皮革片は含有水分量が多く蒸気
圧力が高いほど、圧力容器内での保持時間が長いほど、
コラーゲンのゼラチン質への変換率が高くなる。次に、
該圧力容器を瞬間的に開放減圧させると、皮革片の皮革
組織内部に含まれている高温高圧水の急膨張により皮革
片は膨化される。そして、この膨化によって皮革片はコ
ラーゲンとゼラチンの微細な混合粒子片に細分化される
ので、これを乾燥粉砕して得た皮革粉末はコラーゲンと
ゼラチンがきわめて均一に混り合ったものとなる。ま
た、膨化された皮革片はコラーゲン組織が細分化されて
いるため、きわめて微粉砕し易くなり、しかも皮革組織
内部の空孔が拡張されているので、該皮革片を乾燥、微
粉砕して得た皮革粉末は、これら処理を行わないで皮革
片を単に粉砕して得た皮革粉末に比べ比表面積も大幅に
増大し、温水や熱湯により一層溶け易くなる。したがっ
て、この皮革粉末を合成樹脂液に混入し、該合成樹脂液
を対象基材に塗布、あるいは該合成樹脂液に対象基材を
浸漬した後、合成樹脂液を凝固させ、次に被塗布物を温
水または熱湯に浸してゼラチンのみを溶出させると、溶
けた跡がミクロン単位の微細な空孔となって残り、きわ
めて均一かつ微細な多孔質構造を得ることができる。そ
れによって、柔らかい感触を持ち、柔軟性に富み、透湿
性に優れた樹脂皮膜を造ることができる。また、溶けな
いで残ったコラーゲンを主成分とする皮革粉末が皮膜表
面および空孔内の壁面に露出し、天然皮革の持つ固有の
特性、すなわち吸排湿性機能、透湿性などの効果をもた
らすと共に、ソフトな肌触り感と色調を備えた樹脂皮膜
が得られる。更に、合成樹脂液に顔料を加え、あるいは
既成の合成樹脂塗料に皮革粉末を混入した塗料を金属、
木材、樹脂、紙などの被塗物にスプレー、コター、ディ
ッピングなどの方法により塗膜を形成させた後、同様に
温水または熱湯に浸して皮革粉末の一部を溶出させるこ
とにより、ミクロン単位の微細な多孔質構造を持ち、透
湿性に優れ、ソフトな肌触り感とすぐれた色調を備えた
塗膜を得ることができる。(Function) The present invention utilizes the property that, when a leather containing water is exposed to a high-temperature steam atmosphere, a part of the collagen constituting the leather has a physical property close to that of gelatin and is relatively easily dissolved in warm water or boiling water. In the case, when natural leather pieces containing water are heated and pressurized simultaneously with steam in a sealed pressure vessel,
The inside of the container is in a high-temperature and high-humidity state, and after a predetermined time, the leather piece is denatured into a gelatinized part and an undenatured collagen tissue. In addition, as this leather piece has a high moisture content and a high steam pressure, the longer the holding time in the pressure vessel,
The conversion rate of collagen to gelatinous material increases. next,
When the pressure vessel is instantaneously opened and depressurized, the leather piece expands due to rapid expansion of high-temperature and high-pressure water contained in the leather tissue of the leather piece. Then, the leather pieces are subdivided into fine mixed particle pieces of collagen and gelatin by the expansion, and the leather powder obtained by drying and pulverizing the pieces becomes a very uniform mixture of collagen and gelatin. In addition, since the expanded leather piece has a finely divided collagen tissue, it is extremely easy to pulverize the leather piece, and since the pores inside the leather tissue are expanded, the leather piece is dried and finely pulverized. The resulting leather powder has a significantly increased specific surface area as compared to leather powder obtained by simply grinding leather pieces without performing these treatments, and is more easily dissolved in warm water or hot water. Therefore, this leather powder is mixed into a synthetic resin liquid, and the synthetic resin liquid is applied to a target substrate, or the target substrate is immersed in the synthetic resin liquid, and then the synthetic resin liquid is solidified. Is dissolved in warm water or hot water to elute only gelatin, leaving traces of dissolution as fine pores on the order of microns, and an extremely uniform and fine porous structure can be obtained. Thereby, it is possible to produce a resin film having a soft touch, rich flexibility, and excellent moisture permeability. In addition, the leather powder mainly composed of the collagen remaining without being dissolved is exposed on the film surface and the wall surface in the pores, and has the inherent properties of natural leather, that is, functions of absorbing and discharging moisture, effects such as moisture permeability, A resin film having a soft touch and color tone can be obtained. Furthermore, a pigment is added to a synthetic resin liquid, or a paint in which leather powder is mixed with an existing synthetic resin paint is applied to a metal,
After forming a coating film on the object to be coated such as wood, resin, paper, etc. by a method such as spraying, coating, dipping, etc., by immersing the leather powder in hot water or hot water in the same manner to elute a part of the leather powder, in micron units It is possible to obtain a coating film having a fine porous structure, excellent moisture permeability, a soft touch and an excellent color tone.
（発明の効果） このように本発明によれば、従来に比べ柔らかい感触
を持ち、柔軟性に富み、透湿性、吸排湿性に優れた樹脂
皮膜および塗膜を製造することができる。また、混入す
る皮革粉末製造時に於ける皮革の膨化および微粉砕の処
理条件により皮革粉末自体の物性を変えたり、合成樹脂
液への皮革粉末の混入割合や温水または熱湯処理での調
整により、風合や吸排湿性を任意に調整し使用目的に適
した樹脂皮膜ないし塗膜が得られるようになった。(Effects of the Invention) As described above, according to the present invention, it is possible to produce a resin film and a coating film that have a soft touch as compared with the related art, have high flexibility, and are excellent in moisture permeability and moisture absorption / desorption properties. In addition, the physical properties of the leather powder itself may be changed depending on the processing conditions of the expansion and fine pulverization of the leather during the production of the mixed leather powder, and the mixing ratio of the leather powder in the synthetic resin liquid and adjustment by hot water or hot water treatment may be used. The resin film or the coating film suitable for the purpose of use can be obtained by arbitrarily adjusting the combination and the moisture absorption / desorption property.
（実施例１） 水分を49％含むシェービング屑を密閉容器に投入し、
容器内に圧力3.1Kg/cm2の蒸気を６分間送り込み加熱と
同時に加圧し、次に圧力容器を瞬間的に開放減圧させて
皮革を膨化し、乾燥後、衝撃式粉砕機で現粉砕し、32me
sh以下が66％の皮革粉末を得た。この皮革粉末をさらに
ジェットミルで微粉砕し、比表面積8300cm2/grの皮革粉
末を得た。次に、この皮革粉末をポリウレタン樹脂を主
成分とする塗料に樹脂固形分に対する重量割合で20％を
混入して造った混合塗料を壁紙用基材に塗布し、乾燥さ
せて塗膜を形成させた後、100℃の温水に15分間浸漬し
乾燥させたところ、塗膜には無数の微小な空孔ができ、
多孔質構造を有した塗膜が形成された。こうしてできた
壁紙は吸排湿性があり、表面のタッチも柔軟で、色調も
落ち着いたものであった。(Example 1) Shaving waste containing 49% of water was put into a closed container,
A steam of pressure 3.1 kg / cm 2 is sent into the container for 6 minutes and heated and pressurized at the same time as heating.Then, the pressure container is instantaneously opened and decompressed to expand the leather. 32me
66% or less leather powder was obtained. The leather powder was further finely pulverized with a jet mill to obtain a leather powder having a specific surface area of 8300 cm 2 / gr. Next, a mixed paint prepared by mixing the leather powder with a paint containing a polyurethane resin as a main component at a weight ratio of 20% to the resin solid content is applied to a wallpaper base material and dried to form a coating film. After that, when immersed in 100 ° C warm water for 15 minutes and dried, countless minute pores were formed in the coating film,
A coating having a porous structure was formed. The resulting wallpaper had moisture absorption and desorption properties, had a soft touch on the surface, and had a subdued color tone.
（実施例２） 前記実施例１と同じ皮革粉末をポリウレタン樹脂液に
樹脂固形分に対する重量割合で40％混入し、これを繊維
基材に塗布し、乾燥して繊維状シート材を造った。次
に、これを100℃の温水に15分間浸漬したところ、皮革
粉末の約25％に当たるゼラチン質が溶出され、乾燥後そ
の跡が微細な空孔となり、多孔質構造を有する繊維状シ
ート材が得られた。テストの結果、該繊維状シート材は
透湿性、吸排水性、柔軟性、引張り強度の何れも充分で
ソフトな肌触り感を有し、透湿性シート材として従来に
ない優れた特長を有していた。(Example 2) The same leather powder as in Example 1 was mixed in a polyurethane resin liquid at a weight ratio of 40% to the resin solid content, applied to a fiber base material, and dried to produce a fibrous sheet material. Next, when this was immersed in warm water of 100 ° C. for 15 minutes, about 25% of the gelatinous material of the leather powder was eluted. After drying, the traces became fine pores, and a fibrous sheet material having a porous structure was obtained. Obtained. As a result of the test, the fibrous sheet material has sufficient softness in all of moisture permeability, water absorption and drainage properties, flexibility, and tensile strength, and has excellent features that have not been exhibited as a conventional moisture-permeable sheet material. Was.
（その他の実施例） 本発明における対象基材としては、例えば織布、不織
布、人工皮革、合成皮革および天然の皮革などの繊維製
品のほか、合成樹脂、木、竹、金属、セラミックスなど
も使用可能である。合成樹脂は熱可塑樹脂であればよ
く、天然皮革粉末もその種類を問わず使用可能である。
合成樹脂液には皮革粉末に加え顔料、その他の塗料用成
分を入れてもよい。また、合成樹脂には発泡剤を混入し
てもよく、比較的厚い皮膜または塗膜を形成させる場合
には有効である。(Other Examples) As a target substrate in the present invention, for example, in addition to textile products such as woven fabric, nonwoven fabric, artificial leather, synthetic leather and natural leather, synthetic resin, wood, bamboo, metal, ceramics and the like are also used. It is possible. The synthetic resin may be a thermoplastic resin, and natural leather powder may be used regardless of the type.
The synthetic resin liquid may contain pigments and other paint components in addition to the leather powder. Further, a blowing agent may be mixed in the synthetic resin, which is effective when a relatively thick film or coating film is formed.
なお、本発明の実施による製品、およびその用途、加
工方法などは不問である。The product according to the embodiment of the present invention, its use, processing method, and the like are not questioned.
第１図は本実施例による透湿性シート材の概要を示す断
面図である。 図において、１……ポリウレタン樹脂、２……皮革粉
末、３……空孔、４……繊維基材である。FIG. 1 is a sectional view showing an outline of a moisture-permeable sheet material according to the present embodiment. In the figure, 1 is a polyurethane resin, 2 is leather powder, 3 is pores, 4 is a fiber base material.
Claims (2)
加熱と同時に加圧した後、該圧力容器を瞬間的に開放減
圧させて膨化し、乾燥、微粉砕して得た皮革粉末を混入
した合成樹脂液を対象基材に塗布、あるいは合成樹脂液
に対象基材を浸漬し、更に該合成樹脂液を凝固させた
後、温水または熱湯に浸して皮革粉末の一部を溶出さ
せ、樹脂皮膜を多孔質構造とすることを特徴とする多孔
質皮膜の製法。1. After a piece of natural leather is heated and pressurized with steam in a closed container, the pressure container is instantaneously opened and decompressed to expand, dried and finely pulverized. After applying the synthetic resin solution to the target substrate, or immersing the target substrate in the synthetic resin solution, and further coagulating the synthetic resin solution, immersing the leather resin in warm water or hot water to elute a part of the leather powder, A method for producing a porous film, wherein the film has a porous structure.
布、あるいは合成樹脂液に繊維基材を浸漬し、更に該合
成樹脂液を凝固させた後、温水または熱湯に浸して皮革
粉末の一部を溶出させ、樹脂皮膜を多孔質構造としたこ
とを特徴とする透湿性シート材。2. A method of applying the synthetic resin liquid of claim 1 to a fiber base material, or dipping the fiber base material in the synthetic resin liquid, coagulating the synthetic resin liquid, and immersing the synthetic resin liquid in warm water or hot water. A moisture-permeable sheet material characterized in that a part of the powder is eluted and the resin film has a porous structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP572790A JP2832308B2 (en) | 1990-01-12 | 1990-01-12 | Method for producing porous film and moisture permeable sheet material by the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP572790A JP2832308B2 (en) | 1990-01-12 | 1990-01-12 | Method for producing porous film and moisture permeable sheet material by the method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03213579A JPH03213579A (en) | 1991-09-18 |
| JP2832308B2 true JP2832308B2 (en) | 1998-12-09 |
Family
ID=11619159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP572790A Expired - Fee Related JP2832308B2 (en) | 1990-01-12 | 1990-01-12 | Method for producing porous film and moisture permeable sheet material by the method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2832308B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110093788A (en) * | 2019-06-06 | 2019-08-06 | 江苏聚杰微纤科技集团股份有限公司 | A kind of preparation method of double-sided plush artificial leather |
-
1990
- 1990-01-12 JP JP572790A patent/JP2832308B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03213579A (en) | 1991-09-18 |
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