JPS6477616A - Production of polyvinyl alcohol multifilament yarn - Google Patents
Production of polyvinyl alcohol multifilament yarnInfo
- Publication number
- JPS6477616A JPS6477616A JP23564387A JP23564387A JPS6477616A JP S6477616 A JPS6477616 A JP S6477616A JP 23564387 A JP23564387 A JP 23564387A JP 23564387 A JP23564387 A JP 23564387A JP S6477616 A JPS6477616 A JP S6477616A
- Authority
- JP
- Japan
- Prior art keywords
- yarn
- water
- pref
- stock solution
- followed
- 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
Abstract
PURPOSE:To obtain in high productivity the titled yarn with high strength and high initial modulus, also free from mutual fiber sticking, by dry-wet spinning of a stock solution prepared by dissolving PVA in a mixed solvent made up of dimethylsulfoxide and water, followed by applying specific treatment. CONSTITUTION:First, PVA is dissolved in a solvent consisting mainly of a mixture of dimethylsulfoxide and water to prepare a spinning stock solution followed by dry-wet spinning of this stock solution to form (undrawn) yarn. Thence, the residual solvent in said yarn is extracted with either a mixture of alcohol (pref. methanol) and water or another mixture of ketone (pref. acetone) and water to obtain a water-contg. yarn. This yarn is subsequently wet- drawn by a factor of 3-8 followed by dry heat drawing, thus obtaining the objective yarn. The water content in said water-contg. yarn is pref. 0.2-20wt.%.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23564387A JPS6477616A (en) | 1987-09-18 | 1987-09-18 | Production of polyvinyl alcohol multifilament yarn |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23564387A JPS6477616A (en) | 1987-09-18 | 1987-09-18 | Production of polyvinyl alcohol multifilament yarn |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6477616A true JPS6477616A (en) | 1989-03-23 |
Family
ID=16989053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23564387A Pending JPS6477616A (en) | 1987-09-18 | 1987-09-18 | Production of polyvinyl alcohol multifilament yarn |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6477616A (en) |
-
1987
- 1987-09-18 JP JP23564387A patent/JPS6477616A/en active Pending
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