JP3166139B2 - Paper transport roll - Google Patents
Paper transport rollInfo
- Publication number
- JP3166139B2 JP3166139B2 JP35898092A JP35898092A JP3166139B2 JP 3166139 B2 JP3166139 B2 JP 3166139B2 JP 35898092 A JP35898092 A JP 35898092A JP 35898092 A JP35898092 A JP 35898092A JP 3166139 B2 JP3166139 B2 JP 3166139B2
- Authority
- JP
- Japan
- Prior art keywords
- hardness
- heat
- polyurethane
- transport roll
- polyurethane foam
- 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
Landscapes
- Delivering By Means Of Belts And Rollers (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polyurethanes Or Polyureas (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、紙葉搬送ロールに関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper sheet transport roll .
【０００２】[0002]
【従来の技術】ポリウレタンフォームは配合により様々
の発泡度、硬度、耐摩耗性のものが得られることは良く
知られており、また、その実施も成されている。このよ
うにポリウレタンフォームにおいて、硬度が高いものは
耐摩耗性にも優れていることが通例である。2. Description of the Related Art It is well known that polyurethane foams having various degrees of foaming, hardness and abrasion resistance can be obtained by blending, and the practice has been made. As described above, a polyurethane foam having a high hardness is generally excellent in abrasion resistance.
【０００３】一方、ポリウレタンフォームの使用者にお
いて、近来、低い硬度で優れた耐摩耗性を発揮するもの
が要求されるようになってきた。すなわち、例えば紙葉
搬送ロールに用いるポリウレタンフォームのように、低
い硬度で紙を確実に送ると同時に、優れた耐摩耗性も発
揮されるものが要求されている。On the other hand, users of polyurethane foam have recently been required to exhibit excellent wear resistance with low hardness. That is, for example, a polyurethane foam used for a paper sheet transport roll is required to reliably feed the paper with a low hardness and exhibit excellent wear resistance.
【０００４】[0004]
【発明が解決しようとする課題】従来、ポリウレタンフ
ォームを得るための方法としては、フロンや塩化メチレ
ンの蒸発を利用する方法と、水とイソシアネートとの反
応による炭酸ガス発泡を利用する方法を主流とした。Heretofore, as a method for obtaining a polyurethane foam, a method utilizing evaporation of chlorofluorocarbon or methylene chloride and a method utilizing carbon dioxide gas foaming due to a reaction between water and isocyanate are mainly used. did.
【０００５】しかし、前者の方法に依る発泡形成体は、
低硬度品が得られるも耐摩耗性が悪いと言う問題が生じ
た。そして、後者の方法に依る水発泡形成体は耐摩耗性
が優れているが、低硬度を得ることが不可能であった。However, the foam formed by the former method is
Although a low hardness product was obtained, there was a problem that the wear resistance was poor. The water-foamed article obtained by the latter method is excellent in abrasion resistance, but cannot obtain low hardness.
【０００６】本発明の目的は、上記したような従来にお
ける問題点を解消し、低硬度にしてかつ耐摩耗性に優れ
たポリウレタンフォームを用いた紙葉搬送ロールを提供
することにある。An object of the present invention is to solve the above-mentioned conventional problems and to provide a paper sheet transport roll using a polyurethane foam having low hardness and excellent abrasion resistance.
【０００７】[0007]
【課題を解決するための手段】上記問題を達成するため
に、本発明は、軸芯上にゴムを被覆して成る紙葉搬送ロ
ールにおいて、当該ゴムとして、熱膨張性マイクロカプ
セルを配合させて成る耐摩耗性低硬度ポリウレタンフォ
ームを用いたものである。 [MEANS FOR SOLVING THE PROBLEMS] To achieve the above problems
Further, the present invention relates to a paper sheet transport roller comprising a shaft core covered with rubber.
The heat-expandable microcaps
Abrasion resistant low hardness polyurethane foam with cells
This is the one that uses the
【０００８】[0008]
【実施例】本発明は、液状ポリウレタンプレポリマーと
水とを含むポリウレタン組成物において、熱膨張性マイ
クロカプセルを配合させて成る、ポリウレタンフォーム
組成物を用いたことを特徴とするものである。EXAMPLES The present invention, in the polyurethane composition comprising a liquid polyurethane prepolymer and water, made by blending a thermally expandable microcapsule, polyurethane foam
It is characterized by using a composition .
【０００９】なお、上記した液状ポリウレタンプレポリ
マーと熱膨張性マイクロカプセルとの配合比率である
が、これは液状ポリウレタンプレポリマー１００重量部
に対して熱膨張性マイクロカプセルを０．２５乃至１．
０重量部を配合することが望ましい。The mixing ratio of the liquid polyurethane prepolymer and the heat-expandable microcapsules is 0.25 to 1.50 parts by weight per 100 parts by weight of the liquid polyurethane prepolymer.
It is desirable to add 0 parts by weight.
【００１０】すなわち、熱膨張性マイクロカプセルを
０．２５重量部以下とした場合、低硬度品を得ることが
出来ず、また、逆に１．０重量部以上では、発泡が荒く
なったり、フォームが出来なくなるためである。That is, when the amount of the heat-expandable microcapsules is 0.25 parts by weight or less, a low-hardness product cannot be obtained. Is no longer possible.
【００１１】また、上記した熱膨張性マイクロカプセル
であるが、これを熱可塑性樹脂と気体とから成るように
して実施することも可能である。また、当該熱膨張性マ
イクロカプセルの熱軟化点は６０℃以上であることが望
ましい。The above-mentioned heat-expandable microcapsules may be formed of a thermoplastic resin and a gas. Further, the thermal softening point of the thermally expandable microcapsules is desirably 60 ° C. or higher.
【００１２】なぜならば、６０℃以下であると、混合攪
拌中にカプセルが熱膨張して成形不能と言うような事態
を招いてしまうからである。This is because if the temperature is lower than 60 ° C., the capsule thermally expands during mixing and stirring, which may cause a situation that molding is impossible.
【００１３】また、本発明は、液状ポリウレタンプレポ
リマーと水とを含むポリウレタン組成物を、所定の形状
に成形して成るポリウレタンフォームにおいて、当該ポ
リウレタン組成物には熱膨張性マイクロカプセルを配合
して耐摩耗性低硬度ポリウレタンフォームを形成するよ
うにした実施例を包合する。[0013] The present invention also provides a polyurethane foam formed by molding a polyurethane composition containing a liquid polyurethane prepolymer and water into a predetermined shape, wherein the polyurethane composition is blended with heat-expandable microcapsules. An embodiment is provided for forming an abrasion resistant low hardness polyurethane foam.
【００１４】更に、上記したポリウレタンフォームにお
いて、当該ポリウレタン組成物が、液状ポリウレタンプ
レポリマー１００重量部に対して熱膨張性マイクロカプ
セルが０．２５乃至１．０重量部配合するように成すこ
とが望ましい。Further, in the above-mentioned polyurethane foam, it is preferable that the polyurethane composition is such that 0.25 to 1.0 part by weight of the heat-expandable microcapsule is blended with respect to 100 parts by weight of the liquid polyurethane prepolymer. .
【００１５】尚、前述した熱膨張マイクロカプセルであ
るが、これは、熱可塑性樹脂の殻の中に低沸点物を保持
させたものであり、その熱可塑性樹脂としては塩化ビニ
リデン、アクリロニトリル等の共重合物、低沸点物とし
てはイソブタン等の低沸点炭化水素が挙げられる。The above-mentioned thermal expansion microcapsules are obtained by holding a low-boiling substance in a shell of a thermoplastic resin. As the thermoplastic resin, vinylidene chloride, acrylonitrile and the like are used. Examples of the polymer and the low-boiling substance include low-boiling hydrocarbons such as isobutane.
【００１６】図１は本発明に係る低硬度紙葉搬送ロール
を表したものであって、１は紙葉搬送ロール、２は軸芯
体、３はポリウレタンフォーム層を示す。FIG. 1 shows a low-hardness paper transport roll according to the present invention, wherein 1 is a paper transport roll, 2 is a mandrel, and 3 is a polyurethane foam layer.
【００１７】すなわち本発明は、軸芯上にゴムを被覆し
て成る紙葉搬送ロールにおいて、当該ゴムとして、熱膨
張性マイクロカプセルを配合させて成る耐摩耗性低硬度
ポリウレタンフォームを用いた紙葉搬送ロールを技術範
囲とするものである。That is, the present invention relates to a paper sheet transport roll comprising a shaft core coated with rubber, wherein the rubber sheet comprises a wear-resistant, low-hardness polyurethane foam containing heat-expandable microcapsules. Transfer rolls to technical
It is to be enclosed .
【００１８】表１は従来の水発泡組成物の比較例１，
２、熱膨張性マイクロカプセルのみを配合した比較例
３、水を含むポリウレタンに熱膨張性マイクロカプセル
を配合した組成物の比較例４，５について、配合、発泡
性、フォームの硬さ、耐摩耗指数を比較した表である。Table 1 shows Comparative Examples 1 and 2 of a conventional water-foaming composition.
2. Comparative Example 3 in which only heat-expandable microcapsules were blended, Comparative Examples 4 and 5 in which a heat-expandable microcapsule was blended with water-containing polyurethane, formulation, foamability, foam hardness, abrasion resistance It is the table which compared the index.
【００１９】表２は本発明に関連するポリウレタンフォ
ーム組成物の実施例１乃至実施例７について、配合、発
泡性、フォームの硬さ、耐摩耗指数を比較した表であ
る。Table 2 is a table comparing the formulation, foamability, foam hardness, and abrasion index of Examples 1 to 7 of the polyurethane foam composition related to the present invention.
【００２０】試験方法であるが、フォームの硬さについ
てはSRIS0101−1968に基づいて測定した。更に、耐摩耗
指数はBS−903 PartA −９法に基づいて、２０℃にて
ウイリアムス摩耗試験を行い、水発泡組成物の比較例１
の摩耗値を１００としたときの指数で示した。As a test method, foam hardness was measured based on SRIS0101-1968. Further, the wear resistance index was measured by a Williams abrasion test at 20 ° C. based on the BS-903 Part A-9 method, and the water-foamed composition was compared with Comparative Example 1.
And the abrasion value of the sample was 100.
【００２１】[0021]
【表１】 [Table 1]
【００２２】[0022]
【表２】 [Table 2]
【００２３】表１から確認されるように、従来の水０．
６重量部配合の比較例１はフォームが硬く、水０．８重
量部配合の比較例２は発泡が荒く不均一で発泡性が悪
い。熱膨張性マイクロカプセルを２重量部配合の比較例
３は表面近傍と中心部の発泡が不均一で発泡性が悪い。
そして、水を含むポリウレタンに熱膨張性マイクロカプ
セルを０．１重量部配合の比較例４はフォームの硬さが
高く、また、１．２５重量部配合の比較例５は発泡が荒
くて発泡性が悪く、耐摩耗性の低下が大きい。As can be seen from Table 1, conventional water 0.1.
Comparative Example 1 containing 6 parts by weight had a hard foam, and Comparative Example 2 containing 0.8 parts by weight of water had rough and uneven foaming and poor foamability. In Comparative Example 3 in which 2 parts by weight of the heat-expandable microcapsules were blended, foaming near the surface and at the center was uneven and foamability was poor.
Comparative Example 4 in which 0.1 part by weight of heat-expandable microcapsules was added to polyurethane containing water had a high foam hardness, and Comparative Example 5 in which 1.25 part by weight was blended had poor foaming and foaming properties. And the wear resistance is greatly reduced.
【００２４】一方、表２から確認されるように、上記表
１に表した各比較例に対し、水を含むポリウレタン組成
物に熱膨張性マイクロカプセル０．２５乃至１．０重量
部配合した実施例１乃至実施例７は、何れも発泡性に優
れ、フォームの硬さも４５度以下の低硬度を示し、耐摩
耗性も優れていることが判明した。On the other hand, as can be seen from Table 2, 0.25 to 1.0 parts by weight of heat-expandable microcapsules were added to each of the comparative examples shown in Table 1 above with a polyurethane composition containing water. All of Examples 1 to 7 were found to be excellent in foaming property, the hardness of the foam was as low as 45 ° or less, and the abrasion resistance was also excellent.
【００２５】[0025]
【発明の効果】本発明は、紙葉搬送ロール用のゴムとし
て、熱膨張性マイクロカプセルを配合させて成る耐摩耗
性低硬度ポリウレタンフォームを用いたことにより、低
硬度に してかつ耐摩耗性に優れた所期の特性の紙葉搬送
ロールを得ることができる。 The present invention relates to a rubber for a paper sheet transport roll.
Abrasion resistance by incorporating heat-expandable microcapsules
Low hardness polyurethane foam
Paper transport with desired properties with high hardness and excellent wear resistance
You can get a roll.
【図１】本発明に係る低硬度紙葉搬送ロールを表した横
断面図である。FIG. 1 is a cross-sectional view showing a low-hardness sheet conveying roll according to the present invention.
１ 紙葉搬送ロール ２ 軸芯体 ３ ポリウレタンフォーム層 DESCRIPTION OF SYMBOLS 1 Paper conveyance roll 2 Shaft core 3 Polyurethane foam layer
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭59−108041（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C08G 18/00 - 18/87 C08J 9/04 - 9/14 B65H 5/06 ────────────────────────────────────────────────── (5) References JP-A-59-108041 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) C08G 18/00-18/87 C08J 9 / 04-9/14 B65H 5/06
Claims (1)
ールにおいて、当該ゴムとして、熱膨張性マイクロカプ
セルを配合させて成る耐摩耗性低硬度ポリウレタンフォ
ームを用いたことを特徴とする紙葉搬送ロール。 1. A paper sheet transport roller comprising a shaft core covered with rubber.
The heat-expandable microcaps
Abrasion resistant low hardness polyurethane foam with cells
A paper sheet transport roll characterized in that a roll is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35898092A JP3166139B2 (en) | 1992-12-25 | 1992-12-25 | Paper transport roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35898092A JP3166139B2 (en) | 1992-12-25 | 1992-12-25 | Paper transport roll |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06199978A JPH06199978A (en) | 1994-07-19 |
| JP3166139B2 true JP3166139B2 (en) | 2001-05-14 |
Family
ID=18462113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35898092A Expired - Fee Related JP3166139B2 (en) | 1992-12-25 | 1992-12-25 | Paper transport roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3166139B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100574828B1 (en) * | 1997-12-31 | 2006-12-22 | 주식회사 케이씨씨 | A composition of water paint having decorative proporty |
| JP5728293B2 (en) * | 2011-05-18 | 2015-06-03 | 共和レザー株式会社 | Method for producing synthetic resin skin material |
-
1992
- 1992-12-25 JP JP35898092A patent/JP3166139B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06199978A (en) | 1994-07-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |