Process for imparting stain-resist agent

   
   

A process for imparting stain resistance to polyamide substrates in continuous processes such as those using a Fluidyer.RTM. apparatus or a Flexnip.RTM. applicator and involving the application of a stain-resist composition containing a mixture of a hydrolyzed copolymer of maleic anhydride and one or more ethylenically unsaturated aromatic monomers with a sulfonated phenol-formaldehyde condensation product is disclosed wherein the stain-resist composition is applied at a pH between about 1.5 and about 3.0 in the prescence of an anionic surfactant in the form of an alkyl aryl sulfonic acid or an alkyl aryl sulfonate salt.

Показан процесс для imparting сопротивление пятна к субстратам полиамида в непрерывных процессах such as те используя прибор Fluidyer.RTM. или аппликатор Flexnip.RTM. и включая применение состава пятн-soprotivl4t6 содержа смесь hydrolyzed сополимера малеинового ангидрина и one or more этеново unsaturated ароматичных мономеров с сульфонат продуктом конденсации phenol-formaldehyde при котором состав пятн-soprotivl4t6 приложен на pH между около 1.5 и около 3.0 в prescence анионного сурфактанта in the form of алкиловая ариловая сульфоновая кислота или алкиловым ариловым солью сульфоната.

 
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