Environmentally degradable melt spun fibers comprising a polyhydroxyalkanoate
copolymer and a polylactic acid polymer or copolymer are disclosed. A preferred
configuration of the present invention is directed to environmentally degradable
fibers comprising a sheath/core structure where the core comprises a biodegradable
polyhydroxyalkanoate copolymer and the sheath comprises a polymer or copolymer
of polylactic acid. Nonwoven webs and disposable articles comprising the environmentally
degradable fibers are also disclosed.
