Window bag with polyester lining and method of forming same

An ovenable bag for packaging heated, moist food items for display, said bag comprising:

• a laminate defining a elongated generally tubular wall structure having opposed ends,
• said laminate including a thin transparent inner layer formed of a heat-sealable, moisture-proof and anti-fogging material, and
• a relatively thicker and stiffer opaque outer layer formed of a foldable and printable material fixedly secured to said inner layer and covering said inner layer except along a window portion of said inner layer extending end-to-end of said wall structure, said outer layer includes an elongated strip disposed along a longitudinal edge of said window portion, said outer layer being bonded to said inner layer along substantially the entire area of said outer layer except for said strip,
• said wall structure being flattened, folded and heat-sealed at one end thereof for closing said one end.

An ovenable bag for packaging heated, moist food items for display, said bag comprising:

• a laminate defining an elongated, generally tubular wall structure having opposed ends,
• said wall structure being folded to define front and rear panels joined by gusseted side panels so that each of said side panels is joined to said front and rear panels, respectively, at longitudinal fold lines,
• said laminate including a thin transparent inner layer formed of a heat-sealable, moisture-proof and anti-fogging material, and
• a relatively thicker and stiffer opaque outer layer formed of a foldable and printable material fixedly secured to said inner layer and covering said inner layer except along a window portion of said inner layer extending end-to-end of said wall structure,
• said wall structure being flattened, folded and heat-sealed at one end thereof for closing said one end,
• said laminate being heat sealed along the entire length of each of said longitudinal fold lines.