Short staple (6mm) SAF™ can be processed on all commercial airlaid production equipment and is typically blended with wood pulp and thermal bondable fibre. Webs with up to 60% SAF™ content can be achieved at fabric weights between 80-1,000gsm.
Product web technologies include:
- BBAL/LBAL = Binder-bonded airlaid/Latex bonded airlaid
- MBAL = Multi-bonded air-laid
- HBAL/XBAL = hydrogen-bonded air-laid or x-bonded air-laid
SAF™ can be blended with a wide range of fibres and processed through standard cotton carding systems for nonwoven web forming. Webs containing up to 85% SAF™ can be produced at fabric weights between 10-2,000gsm.
Blending and bonding
SAF™ can be blended with the full range of synthetic and natural fibres.
- Thermally-bonded (typically when bonded with bi-component fibres)
- Latex-bonded (with a fibre matrix , SAF™ will dry back to its original fibre shape)
- Steam/calendar-bond (the steam causes the surface of SAF™ to stick via hydrogen bonding to cellulosic fibre, e.g. wood pulp or viscose)
- Bonding combinations (multi-bonds)
SAF™ can be processed by all well-known staple fibre spinning systems. Typically, SAF™ would be blended with other synthetic fibres such as polyester, nylon, cellulose and aramids. These fibre blends are normally processed using the cotton and semi-worsted systems.
A wide range of spun yarns can be produced using common spinning technologies, including OE, Ring, Hollow Spindle, Repco, Dreft and Pavena.
SAF™ is a non-irritant, safe to handle and is FDA/EFSA listed for use as an absorbent in food packaging. It can be blended with a range of synthetic and natural fibres. Due to excellent integration during conversion into fabrics and yarns, no adhesives or thermal-bonding treatments are required to keep the fibres in place.