초록 ▼

A coupon confining bag method wherein two continuous flexible thermoplastic webs are advanced toward one another for superposition, one web being wider with the narrower web being transparent; the webs are longitudinally sealed along one edge of the narrower web, coupons inserted between the webs tr

A coupon confining bag method wherein two continuous flexible thermoplastic webs are advanced toward one another for superposition, one web being wider with the narrower web being transparent; the webs are longitudinally sealed along one edge of the narrower web, coupons inserted between the webs transversely, the webs thereupon being longitudinally sealed together along the other edge of the narrower web and the wider web being transversely sealed and severed between adjacent coupons.

대표청구항 ▼

A coupon-confining bag method comprising advancing two continuous flexible thermoplastic webs toward one another for superposition, one web being wider than and extending past both longitudinal edges of the other web with at least the narrower web being transparent, longitudinally heat sealing the n

A coupon-confining bag method comprising advancing two continuous flexible thermoplastic webs toward one another for superposition, one web being wider than and extending past both longitudinal edges of the other web with at least the narrower web being transparent, longitudinally heat sealing the narrower web to the wider web along one longitudinal edge of the narrower web to develop a coupon-receiving pocket open along the other longitudinal edge of the narrower web, sequentially introducing coupons into said pocket from the open side thereon, longitudinally heat-sealing the narrower web to the wider web along the other longitudinal edge of said narrower web, and transversely severing said wider web between adjacent coupons.