Spunbonded non-woven fabric, production process for the fabric and use thereof
The present invention provides a spunbonded non-woven fabric having excellent productivity, stretchability, touch and fuzz resistance without adhesion thereof on a roll and the like just after fiber deposition during the production. The spunbonded non-woven fabric comprises long fibers of a thermoplastic polyurethane elastomer (A) containing ethylene bisoleic acid amide and/or crosslinked organic fine particles and having a hardness of 75 to 85, and the spunbonded non-woven fabric comprises the long fibers of the thermoplastic polyurethane elastomer (A) and long fibers of a thermoplastic resin (B) other than the thermoplastic polyurethane elastomer (A). The present invention also provides uses thereof.
1. A spunbonded non-woven fabric comprising continuous fibers which comprise a thermoplastic polyurethane elastomer (A) containing ethylene bisoleic acid amide and having a hardness of 75 to 85.
2. The spunbonded non-woven fabric according to claim 1 further comprising continuous fibers which comprise a thermoplastic resin (B) other than the thermoplastic polyurethane elastomer (A).
3. The spunbonded non-woven fabric according to claim 2 wherein the continuous fibers which comprise the thermoplastic resin (B) are non-stretchable fibers.
4. The spunbonded non-woven fabric according to claim 2 which comprises 10 to 90% by mass of the continuos fibers of the thermoplastic polyurethane elastomer (A) and 90 to 10% by mass of the continuos fibers of the thermoplastic resin (B).
5. The spunbonded non-woven fabric according to claim 2 wherein the thermoplastic resin (B) is a polymer containing polyethylene and/or polypropylene.
6. The spunbonded non-woven fabric according to claim 1 wherein the thermoplastic polyurethane elastomer (A) is a thermoplastic polyurethane elastomer (A2) obtained by using 1,4-bis(2-hydroxyethoxy)benzene as a chain extender.
7. The spunbonded non-woven fabric according to claim 1 wherein the thermoplastic polyurethane elastomer (A) has a fluid initiation temperature of not lower than 155° C.
8. The spunbonded non-woven fabric according to claim 6 wherein the thermoplastic polyurethane elastomer (A2) has a fluid initiation temperature of not lower than 160° C.
9. A stretchable spunbonded non-woven fabric obtainable by stretching and processing a spunbonded non-woven fabric as claimed in claim 1 .
10. A laminate comprising at least one layer which comprises a stretchable spunbonded non-woven fabric as claimed in claim 9 .
11. A sanitary material comprising a stretchable spunbonded non-woven fabric as claimed in claim 9 .
12. The spunbonded non-woven fabric according to claim 1 further comprising crosslinked organic fine particles.