The complete interior of the Kaijay Pants Company factory, 44 W. Catawissa St., Nesquehoning, was gutted by fire today which had its inception at 2:30 p.m. The complete interior and rear of the building, formerly the Newton Theater, was ravished by the flames. The fire was fought by firefighters from the Nesquehoning, Lansford, Mauch Chunk, and Lehighton. Harry Koplin, 67, of Hazleton, properitor of the mill, estimated 10,000 garments - slacks and shorts - were consumed in the fire.