Flexible containers are bags made of flexible materials, such as paper, plastic film and composite film. The sealing device of this kind of container is different because of different materials.
(1) Paper bag sealing device: For paper materials, usually brush adhesive at the sealing place, then apply mechanical pressure sealing.
(2) Plastic film bags and composite film bags sealing device: plastic bags or composite bags made of good thermoplastic materials are usually heated directly at the sealing place and applied mechanical pressure to make the sealing fusion.
(3) Sealing devices for cup containers, such as common soybean milk cups, milk tea cups, etc. By heating the rim of the cup and the film to bind, so that the container sealed.
