Foaming composition for textile finishing and coatings

The process of applying a coating to a substrate which comprises;

• foaming a composition containing from about 50 to about 70 parts by weight of a synthetic resin coating agent;
• and from about 2 to about 8 parts by weight of an acid type catalyst;
• from about 5 to about 14 parts by weight of the expansion mixture for foaming coatings which comprises a foamable mixture of:
• (a) 15 to 53 weight % of a compound having the formulae:
• R--(OCH.sub.2 CH.sub.2).sub.n OSO.sub.3 H.sup.- M.sup.+
• and/or
• R.sup.1 --(CH.sub.2 CH.sub.2 O).sub.n+1 SO.sub.3 H.sup.- M.sup.+
• wherein R is alkyl of 6 to 18 carbon atoms or hydroxyalkyl of 6 to 18 carbon atoms;
• R.sup.1 is hydrogen, alkyl of 6 to 18 carbon atoms or phenoxy substituted with not more than two alkyl groups each having 1 to 23 carbon atoms;
• n is an integer having a value of 0 to 10;
• and M is sodium, potassium, calcium, ammonium or an alkyl- or alkyloxy-amine radical of 1 to 6 atoms;
• (b) 5 to 42 weight % of a compound having the formulae:
• ##STR3## wherein R.sup.3 is alkyl of 6 to 20 carbon atoms;
• R.sup.4 and R.sup.5 are independently alkyl of 1 to 4 carbon atoms;
• X is sulfate, halide or phosphate;
• m and m' are integers independently having a value of 4 to 20;
• and p and p' are integers independently having a value of 0 to 20;
• and
• (c) 5 to 45 weight % of a compound having the formula:
• ##STR4## wherein R.sup.6 and R.sup.7 are independently alkylene of 4 to 22 carbon atoms;
• r and r' are independently integers each having a value of 0 to 15;
• w and w' are integers independently having a value of 0 to 1;
• and y is sodium or potassium;
• and from about 2 to about 26 parts of diluent per part of coating agent;
• expanding said mixture up to about 1,000%;
• contacting the substrate and the resulting foam to provide a layer of foam on said substrate;
• and drying said foam coated substrate at a temperature between about 175.degree. F. and about 390.degree. F. for a period of from about 30 seconds to about 60 minutes.