| 摘要 |
<p>A dispenser for dual extrusion of striped viscous fluids such as toothpaste or the like comprising a container (10) having an opening (15), an axially collapsible sleeve insert (20) inserted in the opening (15), and a piston (13) engaging one end of the sleeve insert. The container (10) is adapted to contain a first viscous material which extends into the sleeve. A second viscous fluid material is provided about the sleeve. The sleeve has a first set of openings (27) at one end adjacent the piston for passage for the first viscous fluid material and a second set of openings (25) therein spaced from the first set of openings and adjacent the opening in the container. Ribs (26) are provided adjacent the other end of the sleeve insert and adjacent the second set of openings (25) for guiding the second material into dual striping extrusion with the first material.</p> |
