Tea bag, has closed bag unit made from water-permeable paper, and partially water-soluble solid material provided in bag unit, where air permeability of paper is measured by air permeability measuring device and amounts to specific value

摘要

The bag has a closed bag unit made from water-permeable paper, and partially water-soluble solid material provided in the bag unit. The paper has weight of 20 to 60 gram per meter square and has thickness of 40 to 80 micrometers. Air permeability of the paper is measured by an air permeability measuring device, and amounts to specific value. The paper is recycled from sodium craft-paper, and a surface is provided with adhesive agent. A strip having marking is inserted into a seal during closing of the bag unit. An independent claim is also included for a method for manufacturing a bag.