JPS55142625A - Manufacturing of porous sheet material - Google Patents
Manufacturing of porous sheet materialInfo
- Publication number
- JPS55142625A JPS55142625A JP5099379A JP5099379A JPS55142625A JP S55142625 A JPS55142625 A JP S55142625A JP 5099379 A JP5099379 A JP 5099379A JP 5099379 A JP5099379 A JP 5099379A JP S55142625 A JPS55142625 A JP S55142625A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- raising
- opening
- less
- moderating
- 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.)
- Pending
Links
Landscapes
- Filtering Materials (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
PURPOSE: To obtain the subject material appearing similar to natural leather by using a method comprising the steps of heating and pressing an intertwinded body consisting of fiber assemblies to tighten the same, thereafter moderating the outer layer of the intertwined body, the opening and raising the same, adding a polymer thereto, coagulating the same, and repeating the moderating, opening and raising.
CONSTITUTION: Fiber assemblies containing less than 10% by weight of the available component of a lubricant are subjected to needling to form an intertwined body having on its one surface more than 200 punches per cm2. Then, the interwined body is passed through a tightening device comprising as elongation part consisting of a steaming part 7 and drying parts 9 and 9', a heating and pressing part 14 and tightening device having pipe heaters 10 through 13, thereby to form a basic organization having an elongation of 0W80% and an end density of tightened layer of 0.44 or more or a non-porous basic organization of more than two layers having mean end density of 0.8 or less. Further, in the surface layer region of this tightened body there is formed a relaxed layer of more than 0.05mm, and the thus formed layer is subjected to opening charge raising or opening absorption raising thereby to form a substrate having the end density of the denatured layer of 0.36 or less 20 where the layer thereof is added to solidify about 8W40% of a solid polymer to form a porous sheet, and the operations of moderating, opening and raising are repeated to render the density of the porous sheet into 0.5 or less.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5099379A JPS55142625A (en) | 1979-04-24 | 1979-04-24 | Manufacturing of porous sheet material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5099379A JPS55142625A (en) | 1979-04-24 | 1979-04-24 | Manufacturing of porous sheet material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55142625A true JPS55142625A (en) | 1980-11-07 |
Family
ID=12874304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5099379A Pending JPS55142625A (en) | 1979-04-24 | 1979-04-24 | Manufacturing of porous sheet material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55142625A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62257472A (en) * | 1986-05-02 | 1987-11-10 | Japan Vilene Co Ltd | Production method of surface material for interior |
JP2009108812A (en) * | 2007-10-31 | 2009-05-21 | Daihatsu Motor Co Ltd | Coolant circulating device for internal combustion engine |
JP2014158988A (en) * | 2013-02-19 | 2014-09-04 | Kuraray Co Ltd | Water treatment nonwoven fabric filter |
-
1979
- 1979-04-24 JP JP5099379A patent/JPS55142625A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62257472A (en) * | 1986-05-02 | 1987-11-10 | Japan Vilene Co Ltd | Production method of surface material for interior |
JP2522768B2 (en) * | 1986-05-02 | 1996-08-07 | 日本バイリーン株式会社 | Method of manufacturing interior skin material |
JP2009108812A (en) * | 2007-10-31 | 2009-05-21 | Daihatsu Motor Co Ltd | Coolant circulating device for internal combustion engine |
JP2014158988A (en) * | 2013-02-19 | 2014-09-04 | Kuraray Co Ltd | Water treatment nonwoven fabric filter |
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