US patent specification for a fabric intended as an inexpensive imitation of lace, embroidery, braiding and trimmings. Muslin is treated with a soluble glass (silicate of potash or soda) solution and laminated between two sheets of paper, then pressed with dies to give a lace-like pattern. The result is described as water-proof and washable with a sponge, and is proposed as a substitute for lace collars and cuffs.