摘要 |
This invention is concerned with business forms assemblies (1) sometimes known as freight forms and which includes a file copy sheet and an envelope assembly in which the envelope assembly has a first outer transparent sheet (6) of protective film material and a second outer sheet (10) having an adhesive coating on its outer face and with a barrier coating thereon with an intermediate copy sheet or sheets between the outer transparent sheet and the outer adhesive coating sheet in which the transparent sheet is of tack material (preferably tack polyethylene) and the second outer sheet is of material to which the tack material adheres by the application of pressure. |