受大家喜愛的食物或彩妝如紅酒、蕃茄醬、口紅等，是常見的頑強汙漬來源。但是現在您可以跟頑強汙漬說 goodbye ! 更多資訊請參照問與答。
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Rayon generally should be dry cleaned. Always follow garment label instructions when pretreating and laundering your clothes. For colored garments, test an inside seam for colorfastness.
If the garment is washable, for fresh stains, apply corresponding Persil gel onto the stain, cover the stain and let it set for 30 minutes, or longer. For heavy stains, apply a stain remover onto the stain, cover the stain and let it set for 30 minutes, or longer. Then wash with a double dosage of corresponding Persil powder. If dry clean only, take it to the dry cleaner for stain removal.