Soft drinks cause stains that can be colorless, yellowish, reddish, brownish and that darken with age. They contain tannin, sugar, vegetable coloring, flavoring and fruit extracts.
Apply cold detergent solution, blot.
Apply ammonia solution, blot.
Apply vinegar solution, blot.
Apply pressure to the spot with a spatula or the back of a tablespoon to work spotting solution deep into spot. DO NOT SCRUB as this may cause nap distortion of the fiber.
Rinse with water, blot until dry.
(Dry cleaning solvent contains volatile organic compound. Use carefully in strict accordance with manufacturers' instructions. Use in well ventilated space and avoid products containing perchlorethylene.)