Philadelphia Quartz Company 1938 vintage textile ad silicates soda

<p>Original 1938 textile trade vintage ad for<b><span style="font-size: 14px;">&nbsp;PHILADELPHIA QUARTZ COMPANY.&nbsp;&nbsp;</span></b>Main office and laboratory was located at 121-125 South Third Street, Philadelphia, PA. (Established 1831).</p><p> Manufacturers of Silicates of Soda for various Textile Processes. The use of Silicates of Soda generally results in improved quality or reduced cost, and sometimes both. Silicates of Soda is the name of a group of 30 products, which have different characteristics obtained by varying the proportions of silica and soda. All yield buffer solutions, ie, they maintain uniform pH over a wide range of concentration.</p><p>Products include Star Brand, Metso and Metso 99 are featured. Well known uses includes Kier Assistant, Scouring Rayon, Bleaching, Discharge Printing, BoilingOff, Silk Weighting, Back Gray Washing and Water Treatment are all discussed.</p><p>Unbound from a large 1938 Textile World Yearbook and Catalog, this unique old one-page brochure would display beautifully matted and framed. Nice graphics. A fabulous addition to your retro textile industry library.&nbsp;<br></p>