| 摘要 |
A method of conditioning a phonograph record comprises applying a very thin film thereto of a quaternary ammonium salt having at least one long hydrocarbon chain. Preferred compositions have the formula <IMAGE> wherein R1 is a hydrocarbon radical having from 8 to 22 carbon atoms, R2 is a hydrocarbon radical having 8 to 22 carbons, C1-C4 alkyl, quaternary ammonium alkylene, or benzyl, and R3 and R4 are C1-C4 alkyl or -(CH2CH2O)nH, wherein n is an integer from 1 to 20, and X is a water-soluble salt-forming anion. Especially preferred compounds are quaternary ammonium compounds having at least one tallow radical. The compound is applied by spraying small quantities of a solution containing a minor amount of the salt dissolved in a solvent on a soft applicator, and pressing the applicator against the record while the surface is moving relative to the applicator.
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