Blowing device and sealing arrangement

A method of using a blowing device to blow gas from an outside of a tubular-shaped packaging material through said tubular-shaped packaging material comprising:

• bringing a blowing device in proximity to a tubular-shaped packaging material, wherein said blowing device comprises:
• at least one gas nozzle configured to blow gas from an outside of said tubular-shaped packaging material through said tubular-shaped packaging material, and
• a guiding member, wherein said guiding member comprises a web passage having a surface configured to face said tubular-shaped packaging material such that said web passage surrounds or substantially surrounds said tubular-shaped packaging material and, wherein said gas nozzle is configured to surround or substantially surround said tubular-shaped packaging material;
• and
• introducing a gas from an outside of said tubular-shaped packaging material through said tubular-shaped packaging material using said blowing device.

An arrangement for the manufacturing of pouched products comprising a gas-permeable packaging material enclosing a filling material, said arrangement comprising:

• a first feeding unit for supplying an advancing web of said gas-permeable packaging material,
• a second feeding unit for supplying said filling material to said advancing web,
• an enclosing unit for arranging said web of gas-permeable packaging material in a tubular shape, thereby forming a gas-permeable tubular-shaped packaging material,
• optionally, a longitudinal sealing device for providing said arranged gas-permeable tubular-shaped packaging material with a longitudinal seal, and
• a sealing arrangement comprising a sealing device configured to seal said gas-permeable tubular-shaped packaging material with a transverse seal, and
• a blowing device comprising at least one gas nozzle configured to blow a gas from an outside of said gas-permeable tubular-shaped packaging material through said gas-permeable tubular-shaped packaging material, wherein said gas nozzle is configured to surround or substantially surround said gas-permeable tubular-shaped packaging material and, wherein
• said blowing device is arranged upstream of said sealing device with said gas nozzle configured to blow said gas onto said gas-permeable tubular-shaped packaging material, such that said gas contacts said gas-permeable tubular-shaped packaging material at or adjacent to said sealing device.

A method for manufacturing a pouched product comprising:

• supplying and advancing a web of a gas-permeable packaging material,
• supplying a filling material to said advancing web,
• arranging said advancing web in a tubular shape to enclose said filling material, wherein said arranging is performed before or after supplying said filling material,
• optionally, providing said tubularly arranged gas-permeable packaging material with a longitudinal seal, and
• providing said gas-permeable tubular-shaped packaging material with a transverse seal by:
• a) removing filling material from a seal region of said gas-permeable tubular-shaped packaging material by blowing said filling material away from said seal region, wherein said blowing is performed from an outside of said gas-permeable tubular-shaped packaging material through said gas-permeable tubular-shaped packaging material, and
• b) providing a transverse seal to said gas-permeable tubular-shaped packaging material in said seal region of said gas-permeable tubular-shaped packaging material, wherein said blowing is performed by a gas nozzle surrounding or substantially surrounding said gas-permeable tubular-shaped packaging material.