METODE UNTUK MEMPERKUAT LAPISAN DASAR SELULOSA, BAHAN PEMBERSIH SELULOSA BUKAN-TENUNAN, DAN BAHAN PERSEDIAAN FILTER KERTAS (PECAHAN DARI P-941783)

摘要

This invention relates to a method for strengthening a cellulosic substrate by treating the substrate with a formaldehyde-free curable aqueous composition and curing the composition. The cellulosic substrates include, for example, paper oil- and air-filter stock, rayon nonwoven wipes, cellulosic laminating stock, cotton woven fabrics, and wood flakes suitable to be consolidated into flakeboard.