Banded texture was decorated on oriented films of 4-hydroxybenzoic acid-2-hydroxy-6-naphthoic acid copolymer by annealing．The fibrils of three levels

Which were macrofibrils of several tens micron in diameter

fibrils feW micron and microfibrils about 0.3 micron

were observed simultaneously with banded texture usingpolarized microscope．After annealing

fibrils in different levels relaxed to differentmorphology．Macrofibrils still oriented along shear direction

but fibrils relaxed to helical form

and microfibrils relaxed to waveform therefore the banded texture canbe seen．The smaller the diameter of fibrils was

the more easily the fibrils relaxed．Ori the other hand

the banded texture decoration of annealed unoriented filmsrevealed directly the distribution of directors within and out of domains and thevariation of directors on boundaries．The formation of banded texture iS explained byslow effect of constricting elastic force of macromoleeules on relaxation duringannealing．