STABILIZATION OF PIGMENTED FIBER WITH A SYNERGISTIC MIXTURE OF HINDERED AMINE AND UV ABSORBER

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Pigmented thermoplastic fiber, especially pigmented polypropylene fiber, a re stabilized against the deleterious effects of actinic radiation by a synergistic combination of a hindered amine light stabilizer plus a UV absorber such as an o-hydroxyphenyl-benzotriazole or an o-hydroxyphenyl-s-triazine.