초록 ▼

A packing bag, particularly suitable for use for light-sensitive materials, composed of a composite laminate which comprises a cross laminate film of two uniaxially stretched high density polyethylene films wherein the stretching directions of the two films cross each other at an angle of about 45°t

A packing bag, particularly suitable for use for light-sensitive materials, composed of a composite laminate which comprises a cross laminate film of two uniaxially stretched high density polyethylene films wherein the stretching directions of the two films cross each other at an angle of about 45°to about 90°C. and a low density polyethylene film containing a light-intercepting agent and an antistatic agent, wherein the bag is so constructed that the low density polyethylene film surface of the laminate film is the interior surface of the packing bag.

대표청구항 ▼

A packing bag for light-sensitive materials which comprises a cross laminate film of two uniaxially stretched high density polyethylene films wherein the stretching directions of the two films cross each other at an angle of about 45°to about 90°and a low density polyethylene film containing a light

A packing bag for light-sensitive materials which comprises a cross laminate film of two uniaxially stretched high density polyethylene films wherein the stretching directions of the two films cross each other at an angle of about 45°to about 90°and a low density polyethylene film containing a light-intercepting agent and an antistatic agent, wherein for low density polyethylene film surface of said cross laminate is the interior surface of said bag. The packing bag of claim 1 including at least one additional layer selected from the group consisting of a layer of a low density polyethylene film cloth, paper, cellophane, a synthetic resin sheet, a flat yarn and aluminum foil. The packing bag of claim 1 wherein the high density polyethylene films are heat-sealed to one another for lamination.