| 摘要 |
A flexible structure comprises a plurality of starch filaments. The structu re comprises at least a first region and a second region, each of the first and second regions having at least one common intensive property selected from the grou p consisting of density, basis weight, elevation, opacity, crepe frequency, an d any combination thereof. The common intensive property of the first region diffe rs in value from the common intensive property of the second region.
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