초록 ▼

Two continuous travelling webs (1, 2) of porous material are provided for forming the eventual infusion packages. The lower web (2) is dosed with measured amounts (3) of infusible substance, such as tea, on its upper surface at spaced intervals by the dosing roller (4). Two continuous travelling str

Two continuous travelling webs (1, 2) of porous material are provided for forming the eventual infusion packages. The lower web (2) is dosed with measured amounts (3) of infusible substance, such as tea, on its upper surface at spaced intervals by the dosing roller (4). Two continuous travelling strips (5, 6) of tag material such as card, are also provided to form the tags in the finished infusion packages. The strips are guided to travel parallel to and at the same speed as the webs (1, 2), respectively. A rotating string drum (8) forms a continuous length of string (7) into a succession of predetermined patterns. The upper web (1) and strip (5) of tag material are guided to be side by side, and then pass in face-to-face contact with heated roller (9) which melts the thermoplastics coating on the web and strip to render them adhesive. The heated web and strip of tag material then travel for a short distance around the circumference of the string drum so that the string can adhere lightly to both the web (1) and strip (5). The web (2) carrying the dose of infusible substance, and the other strip (6) of tag material are guided to travel side by side and brought together with the web (1) and strip (5) at sealing rollers (11, 12) to form a succession of two-ply infusion containing pockets and, to correspondingly seal the strips (5, 6) of tag material. The sealed infusion-containing pockets and strips of tag material then travel together to the cutting rollers (14, 15) which cut both the strips of tag material and the webs to form infusion packages (17) and tags (18) of the desired shape.

대표청구항 ▼

[ I claim:] [1.] A method for manufacturing tagged infusion packages of the type formed from a two-ply web having an infusion containing pocket defined therein and having a length of string joining the tag and package, comprising:providing a pair of continuous travelling webs for forming successive

[ I claim:] [1.] A method for manufacturing tagged infusion packages of the type formed from a two-ply web having an infusion containing pocket defined therein and having a length of string joining the tag and package, comprising:providing a pair of continuous travelling webs for forming successive packages, each web having associated therewith a continuous strip of tag material for forming the tags,guiding the strips to travel parallel to and at the same speed as the respective webs;adhering a length of string to one web and its associated strip of tag material whilst the web and strip travel side by side, such that the string bridges the web and tag material;dosing an infusible substance at a location adjacent one of the webs;sealing the webs and strips of tag material together to form a two-ply web having pockets containing the infusible substance and a two-ply tag strip travelling to one side of the two-ply web, the string extending between the web and tag strip at spaced locations;cutting the pockets and tags from the sealed webs and strips of tag material to form tagged infusion packages.