Texturing finish for synthetic filaments
OwnerRoland L. Hawkinsinventor
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Abstract
An improved, low fuming, thermally stable, texturing finish for a synthetic filamentary material is disclosed comprising 40 to 75 percent of a lubricant, exemplified by pentaerythritol tetrapelargonate; 20 to 50 percent of an emulsifier, exemplified by condensates of castor oil with from about 2 to about 12 moles of ethylene oxide; 2 to 20 percent of an antistat-auxiliary emulsifier, such as a neutralized phosphate ester of an alcohol; and optionally 0 to 2 percent of a thermal stabilizer, exemplified by a condensate of 3-methyl-6-tert-butylphenol with crotonaldehyde. An oil in water emulsion is produced having an oil content of from about 5 to 20 weight percent.
Claims4
A polyethylene terephthalate filament yarn having as a finish thereon a composition comprising 40 to 75 weight percent of a high molecular weight fatty acid ester lubricant characterized by a weight loss of not more than 25 weight percent when subjected to a temperature of 210.degree. C. for 24 hours;
- 20 to 50 weight percent of an emulsifier for said lubricant, said emulsifier having a low fuming propensity and being stable against thermal degradation;
- 2 to 20 weight percent of a neutralized phosphated adduct of an alcohol having a chain length of about 8 to 18 carbon atoms and 4 to 10 moles of ethylene oxide.
Dependencies are inferred from the claim text.