Low-charging fiber and method for producing the same

摘要

An object to be achieved by the invention is to provide a biodegradable low-charging fiber. The prevent inventors have found that when a specific amount of a specific phospholipid that is not known to have antistatic properties is added to a biodegradable polymer, and the resulting mixture is formed into a fiber having a smooth surface, low-charging properties are developed. The invention has thus been accomplished. The invention is a fiber having an average surface porosity of less than 3% and made of a biodegradable polymer that contains a specific amount of a specific phospholipid.

主权项

1. A fiber comprising a biodegradable polymer that contains a phospholipid and having an average surface porosity of less than 3%,
wherein the phospholipid is one of the following: dilauroylphosphatidylcholine in an amount of 0.2 wt % to 5 wt %; dimyristoylphosphatidylcholine in an amount of 0.4 wt % to 5 wt %; dipalmitoylphosphatidylcholine in an amount of 1 wt % to 5 wt %; dioleoylphosphatidylcholine in an amount of 1 wt % to 5 wt %; and dioleoylphosphatidylethanolamine in an amount of 1 wt % to 5 wt %; or is two or more of the phospholipids in a total amount of 5 wt % or less, and in a total amount of 1 wt % or more, or contains at least dilauroylphosphatidylcholine in an amount of 0.2 wt % or more, or contains at least dimyristoylphosphatidylcholine in an amount of 0.4 wt % or more.