| 摘要 |
Improvements in color management for polypropylene fiber production in terms of permitting similar if not identical processing conditions for both colored and uncolored fiber production are provided. Generally, either separate polypropylene fiber manufacturing lines or different processing conditions on the same manufacturing line are required for the production of colored and non-colored polypropylene fibers. This coloring is, for example, done by using pigments that may have a nucleation effect on the PP polymer which affects fiber properties. Such an inefficient situation exists due to the physical properties of drawn polypropylene fibers during manufacture, particularly the different properties exhibited between fibers including color and fibers that are colorless. Thus, it has been determined that specific additives can permit substantially identical fiber processing conditions (such as temperature and draw ratios, as examples) for colored and non-colored polypropylene fibers, providing greater efficiency to the manufacturer when switching between such fiber types is elected and/or necessary.
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