JPS6420312A - Nonuniform finely porous fiber and production thereof - Google Patents
Nonuniform finely porous fiber and production thereofInfo
- Publication number
- JPS6420312A JPS6420312A JP17181087A JP17181087A JPS6420312A JP S6420312 A JPS6420312 A JP S6420312A JP 17181087 A JP17181087 A JP 17181087A JP 17181087 A JP17181087 A JP 17181087A JP S6420312 A JPS6420312 A JP S6420312A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- ratio
- fine pores
- thermoplastic polymer
- skin
- 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
- 239000000835 fiber Substances 0.000 title abstract 6
- 239000011148 porous material Substances 0.000 abstract 2
- 229920001169 thermoplastic Polymers 0.000 abstract 2
- 229920000742 Cotton Polymers 0.000 abstract 1
- 239000004035 construction material Substances 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 239000004745 nonwoven fabric Substances 0.000 abstract 1
- -1 polyethylene terephthalate Polymers 0.000 abstract 1
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract 1
- 239000005020 polyethylene terephthalate Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 238000010791 quenching Methods 0.000 abstract 1
- 230000000171 quenching effect Effects 0.000 abstract 1
- 239000002759 woven fabric Substances 0.000 abstract 1
Landscapes
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
PURPOSE:To obtain the titled lightweight fiber made up of special porous core and dense skin, outstanding in heat retentivity and strength, suitable for synthetic cotton, woven and nonwoven fabrics and construction materials, by melt forming of a thermoplastic polymer followed by drawing under specified conditions. CONSTITUTION:First, a thermoplastic polymer (e.g., polyethylene terephthalate) is brought to melts pinning, while quenching at a draft ratio of <=1,500, so that the resulting crystallinity is <=20%. Thence, the resultant spun yarn is drawn at a deformation rate of >=2X10<3>%/min and draw ratio of 1.1-50 under an atmosphere at temperatures lower than the melting point of said polymer by >=10 deg.C, thus obtaining the objective fiber of a porosity >=45% having fine pores oriented in the direction of fiber axis, made up of (A) porous core containing such a group of fine pores that an average diameter D on the fiber section is 0.01-50mu and ratio of the average length in the direction of fiber axis L to D: L/D 2-100 and (B) dense non-porous layer (skin).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17181087A JPS6420312A (en) | 1987-07-09 | 1987-07-09 | Nonuniform finely porous fiber and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17181087A JPS6420312A (en) | 1987-07-09 | 1987-07-09 | Nonuniform finely porous fiber and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6420312A true JPS6420312A (en) | 1989-01-24 |
Family
ID=15930146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17181087A Pending JPS6420312A (en) | 1987-07-09 | 1987-07-09 | Nonuniform finely porous fiber and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6420312A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8349422B2 (en) | 2008-04-24 | 2013-01-08 | Saudi Basic Industries Corporation | Flexible intermediate bulk container |
| US9556540B2 (en) | 2008-04-24 | 2017-01-31 | Saudi Basic Industries Corporation | Process for making opaque polyester film |
-
1987
- 1987-07-09 JP JP17181087A patent/JPS6420312A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8349422B2 (en) | 2008-04-24 | 2013-01-08 | Saudi Basic Industries Corporation | Flexible intermediate bulk container |
| US9556540B2 (en) | 2008-04-24 | 2017-01-31 | Saudi Basic Industries Corporation | Process for making opaque polyester film |
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