Tube with application tip
The invention relates to a tube with an application tip for liquid or pasty material, in particular pharmaceutical. The tube has a tube body with an end which can be closed or has already been closed and with an outlet end. The outlet end of the tube has a tube neck with an outlet opening. Furthermore, the tube according to the invention has an application tip which is elongated in the longitudinal direction of the tube, is connected to the outlet end of the tube, and has an inner channel which connects an inlet opening and an application opening. A closure which closes the application opening is moulded onto the application opening of the application tip. The application tip has a gripping means.
1. A method for producing a filled tube with an application tip, comprising the steps
a. forming of a tube body with an open end and an outlet end which has a tube neck with an outlet opening,
b. forming of an application tip with a gripping means over its entire length or over a portion of its length and an inner channel which connects an inlet opening and an application opening, and a closure which closes the application tip,
c. moulding of the application tip with the region around its inlet opening onto the tube neck,
d. filling of the tube body with a liquid or pasty material via the open end,
e. transverse sealing of the open end,
wherein the tube body and the application tip are independently characterized by a wall thickness and a length,
wherein the application tip is formed with the gripping means in the region of the inlet opening, and
wherein the gripping means comprises transverse ribs at a right angle to the longitudinal direction of the application tip, and
wherein the application tip is moulded onto the tube neck in a positively locking manner.
2. The method of claim 1 , wherein the closure is connected to the wall of the application tip on opposite sides by way of two extension pieces which protrude beyond the application opening in the direction of the tube body, via two predetermined break points at the end of the extension pieces.
3. The method of claim 1 , wherein the gripping means extends over a portion of the length of the application tip and is formed as a widened portion in one dimension of the outer cross section of the application tip with respect to the outer cross section in other portions of the application tip.
4. The method of claim 1 , wherein the gripping means extends over a portion of the length of the application tip and is formed as a widened portion in one dimension of the inner cross section of the application tip with respect to the inner cross section in other portions of the application tip.
5. The method of claim 1 , wherein the gripping means is formed as a recessed grip with grooves and ribs.
6. The method of claim 1 , wherein the application tip is moulded onto the tube neck in a positively locking manner by way of welding.
7. The method of claim 1 , wherein the tube body and the application tip are produced in each case from polypropylenes (PP).
8. The method of claim 1 , wherein the tube body and the application tip are produced in each case from polyethylene (PE), polyethylene terephthalate (PET), polyvinyl chloride (PVC) or polyamide (PA).
9. The method of claim 1 , wherein the wall thickness of the application tip is greater than the wall thickness of the tube body.
10. The method of claim 1 , wherein the wall thickness of the tube body lies in the range from 0.2 mm to 0.6 mm.
11. The method of claim 1 , wherein the wall thickness of the application tip lies in the range from 0.3 mm to 1.2 mm.
12. The method of claim 1 , wherein the wall thickness of the application tip in the region of a recessed grip is higher than in the remaining portions of the application tip and lies in the range from 0.4 mm to 1.4 mm.
13. The method of claim 1 , wherein the length of the application tip without the closure is at least 20% of the length of the tube body.
14. The method of claim 13 , wherein the length of the application tip without the closure is at least 50% of the length of the tube body.
15. The method of claim 14 , wherein the length of the application tip without the closure is greater than or equal to of the length of the tube body.
16. The method of claim 1 , wherein the length of the application tip without the closure lies in the range from 15 mm to 70 mm.
17. The method of claim 1 , wherein the length of the tube body lies in the range from 15 mm to 70 mm.
18. The method of claim 1 , wherein the material of the application tip is transparent.
19. The method of claim 1 , wherein the material of the tube body is not transparent.
20. The method of claim 1 , wherein the closure can be broken off by bending or by twisting.
21. The method of claim 1 , wherein the tube with the application tip is sized to contain a single dose of pharmaceutical formulation.
22. The method of claim 1 , wherein the channel has a diameter in the range from 0.5 mm to 0.8 mm.
23. The method of claim 1 , wherein the liquid or pasty material is an active pharmaceutical agent formulation.