Claims
- 1. Method of bonding plies of tissue paper together comprising the steps of:
feeding a web of at least two plies of tissue paper through an ultrasonic bonding device comprising at least one ultrasonic horn and an anvil roller having a pattern of protrusions on its peripheral surface; and applying fluid to the web in a pattern corresponding to the pattern of protrusions before the web passes the ultrasonic horn.
- 2. The method according to claim 1, wherein the fluid is applied directly to the protrusions on the anvil roller.
- 3. The method according to claim 1, further comprising applying a colouring fluid to at least some of the protrusions on the anvil roller.
- 4. The method according to claim 3, further comprising applying a colouring fluid to all of the protrusions on the anvil roller.
- 5. The method according to claim 3, further comprising applying patterns of colouring fluid with different colours to different protrusions on the anvil roller.
- 6. The method according to claim 1, wherein the fluid is applied with one or more printing devices.
- 7. An arrangement for bonding plies of tissue paper together comprising:
means for forming a web of at least two plies of tissue paper; means for feeding the web through an ultrasonic bonding device comprising at least one ultrasonic horn and an anvil roller having a pattern of protrusions on its peripheral surface; and means for applying fluid to the web in a pattern corresponding to the pattern of protrusions before the web passes the ultrasonic horn.
- 8. The arrangement according to claim 7, wherein the means for applying fluid are structured and arranged to apply fluid to the protrusions on the anvil roller.
- 9. The arrangement according to claim 8, further comprising one or more printing devices for applying fluid to the protrusions.
CROSS REFERENCE TO RELATED APPLICATION
[0001] This application claims the benefit of prior provisional application 60/460,429 filed Apr. 7, 2003.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60460429 |
Apr 2003 |
US |