Patent ID: 7892992
Filing Date: 2011-02-22
Classification: D01D,D01F,D04H,Y10T

Abstract:
1. Polyvinyl alcohol fibers having an extremely flattened cross-sectional profile and having a mean thickness D (μm) that satisfies the following formula (1): wherein D=S/L; D indicates the mean thickness (μm) of the fibers which is a mean length (μm) of the minor side of the cross section of the fibers; S indicates the cross-section area (μm L indicates the length (μm) of the major side of the cross section of the fibers; wherein said polyvinyl alcohol fibers consist of polyvinyl alcohol and from 0.01 to 30% by mass of a layered compound having a mean particle size of from 0.01 to 30 μm and wherein said layered compound is smectite, montmorillonite or mica.