Abstract: Dot Hot Stapling is provided wherein articles such as bags can be made of interwoven or knitted plastic material and wherein the interfitting or interwoven strips are adapted to be sealed together so as to prevent unraveling and to provide an economical method of making such articles. With the present invention, crossing points of tape type fabrics are attached together with dot sealing or dot hole edge sealing by any means that will accomplish this function. The dot heat sealing may be accomplished in any of plurality of ways such as by using heated needles, co-acting rollers with heated prongs, pulsed laser, interrupted heated air jets, a pulsed spark arrangement, intermittent ultrasound, ultrasonics, or the like.

Abstract: A bag for explosives is provided that includes an inner liner of plastic material that has a quantity of granular explosive material therein, and wherein a woven outer member has the liner arranged therein, girdle sleeve portions on the lower end of the bag, and wherein the upper and lower end(s) of the bag are closed.