Polyester
Polyester is stable against water and its strength hardly changes even when it is wet. For other fibers, as given in the table below, the strength is lower when they are wet than dry. But for polyester, the strength stays the same, whether wet or dry.
| Fiber | Tensile strength (cN/dtex) | Official regain(※1) (%) |
|
|---|---|---|---|
| Dry | Wet | ||
| Polyester | 4.1～5.7 | 4.1～5.7 | 0.4 |
| Acryl | 2.2～4.4 | 1.8～4.0 | 2.0 |
| Nylon | 4.0～6.6 | 3.3～5.7 | 4.5 |
| Rayon | 2.2～2.7 | 1.2～1.8 | 11.0 |
※1 Moisture contained in fiber differs according to the air temperature and humidity of the day measured. The moisture percentage closest to the normal condition is referred to as official regain.
Source: “Textile Handbook” published by Japan Chemical Fibers Association
| Applications of specialty papers | Various filters、Tea bag、Drainage bag、Battery、 Paper hand towel etc |
|---|
- Alkaline resistance
- Acid resistance
- Good affinity with rubber , cement , and resin
- Hydrophilic property
- Wet strength
- Strong paper / Function as a binder fiber (KURALON)
- Two types of binder fibers / Function as a binder fiber (Polyester)
- Function as a binder fiber (EVOH fiber)
- Heat resistance (Polyester)
- Moist and smooth sheet
- Fluffy peach skin sheet
- Close-packing structured paper
- Pore size free paper (KURALON)
- Pore size free paper (Polyester)
- Alkaline manganese battery separator
- Masking tape
- Fiber reinforced plastic (FRP)
- Base material for wooden floor
- Shoji paper/Wrapping paper
- Inorganic paper (Printed wiring board, Heat insulating material, etc.)
- Various filters
- Tea bag
- Drainage bag
- Paper hand towel
- Stencil paper
- Secondary battery separator
- Cosmetic face mask
