Abstract: A laminated article comprising two outer glass layers, a polyvinyl acetal layer disposed therebetween and a fibrous layer encapsulated in said polyvinyl acetal layer; and a process for producing said laminated article comprising(1) maintaining a substantially constant vacuum in a flexible container containing an assembly comprising(a) a first glass layer,(b) a first polyvinyl acetal layer in contact with said first glass layer,(c) a fibrous layer in contact with said first polyvinyl acetal layer,(d) a second polyvinyl acetal layer in contact with said fibrous layer and(e) a second glass layer in contact with said second polyvinyl acetal layer;(2) applying pressure on said container while increasing the same from about ambient pressure to an elevated pressure level and simultaneously increasing the temperature on the contents of said container from about ambient temperature to an elevated temperature level;(3) reducing the temperature on the contents of said container from said elevated temperature level to ab