In this work, the crystallization and polymorphic behavior of biodegradable poly(butylene adipate) in its composites with nylon-6 fabric were investigated. It was found that the nylon-6 fiber exhibits high nucleation ability toward the PBA as demonstrated by the increased crystallization temperature and the formation of transcrystalline layers. It was demonstrated that the nylon-6 induces the crystallization of PBA in its alpha-form under all of the used crystallization conditions. The effect of nylon-6 on the alpha-PBA crystallization was confirmed to be limited within a range of ca. 1 mu m. [GRAPHICS] .