Process for painting a fibrous surface

Claim 1

IN THE PAINTING OF A FIBROUS SURFACE WHOSE FIBERS ARE SELECTED FROM THE GROUP CONSISTING OF VEGETABLE FIBERS AND SILICATE FIBERS, THE IMPROVEMENT WHICH CONSISTS OF (A) APPLYING AN AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF WATER AND DISSOLVED SALT, THE LATTER PROVIDING AT LEAST ONE ANION SELECTED FROM THE GROUP CONSISTING OF BORATES, SULFACTS, CARBONATES, PHOSPHATES, ACTATES, SULFITES, CLHORIDES AND NITRATES TO SAID FIBROUS SURFACE IN AN EMULSION-COAGULATING AMOUNT WHICH FOR THE TETRABORATE ANION CORRESPONDS TO BETWEEN ABOUT 1.5 AND 9 GRAMS OF 1-3 WEIGHT PERCENT AQUEOUS BORAX SOLUTION PER SQUARE FOOT OF FIBROUS SURFACE AND FOR ALL OTHER ANIONS OF SAID GROUP IS ABOUT 4-10 TIMES GREATER, AND (B) THEREAFTER APPLYING TO SAID SURFACE, WITH RAPID COAGULATION THEREOF INTO A DISCONTINUOUS FILM, AN AQUEOUS LATEX EMULSION PAINT HAVING COMPATIBLY BLENDED THEREWITH BETWEEN ABOUT 0.5 AND 20% BY WEIGHT OF POLYVINYL ALCOHOL, BASED ON THE LATEX SOLIDS OF SAID PAINT.