Kuralon PVA Fibers for Papermaking Applications
General Characteristics
‘KURALON’ is a synthetic fiber made from polyvinyl alcohol polymer, which is normally a water soluble polymer. By use of a special spinning technology, Kuraray is able to supply both water soluble and water insoluble KURALON fibers for paper industry. Water soluble types work as a binder in the paper making process, and water insoluble types work as subject material or the matrix of paper. Water soluble types can be provided over a range of dissolving temperatures. The general characteristics that make PVA useful in papermaking applications include:
- Good dispersion
- Dissolves in water (binder fiber)
- Good bonding effect (binder fiber)
- Improves paper strength
- Good resistance to alkaline conditions
Standard Types of KURALON PVA Fiber for Papermaking
| Type | Product Number | Denier | Diameter (µm) | Dissolving T in water (°C) | Cut length (mm) |
|---|---|---|---|---|---|
| Subject fiber | VPB033 | 0.3 | 6 | >100 | 2 |
| VPB053 | 0.5 | 7 | 2, 3 | ||
| VPB102 | 1.0 | 11 | 99 | 3, 5 | |
| VPB103 | 1.0 | 11 | >100 | 3, 5 | |
| VPB203 | 2.0 | 15 | 6 | ||
| VPB303 | 3.0 | 18 | 7, 9 | ||
| Binder fiber | VPB041 | 0.4 | 6 | 80 | 3 |
| VPB071 | 0.7 | 9 | |||
| VPB101 | 2.6 | 17 | 4 | ||
| VPB105-1 | 1.0 | 11 | 70 | ||
| VPB105-2 | 60 |
Typical Applications
- Battery seperator paper
- Filtration media
- Binder for fiberglass paper
- Other specialty/technical papers
All of the above products are produced at the Kuraray Tamashima plant, which is approved to ISO9002 quality certifications.