Tampon pledget having a shaped tip and method of making same
View Patent ↗The present invention provides a tampon pledget having a shaped tip. The present invention further provides a method for forming a tampon pledget having a shaped tip. The method includes a cooling step after the formation of the shaped tip, which results in the minimization and/or prevention of deformation of the shaped pledget tip during the remainder of processing up until the end use by a consumer.
1. A process for manufacturing a pledget, the process comprising:
moving an absorbent member through a heating device, said absorbent member having a forward end and a rear end;
heating said absorbent member;
introducing said absorbent member to a first member having an orifice therein, said orifice having a concave surface therein with an orifice end;
pushing said heated absorbent member to said orifice end, said forward end of said heated absorbent member forming a shaped tip; and
cooling said heated absorbent member using a cooling device,
wherein said first member moves in a first lateral direction, a second longitudinal direction, and a third direction being substantially perpendicular to both said first lateral and said second longitudinal direction.
2. The process of claim 1 , wherein said first member is a head tooling die.
3. The process of claim 1 , wherein the cooling device provides a cooled air stream, and wherein the cooling step further comprises the step of blowing said cooled air stream on said heated absorbent member to cool said shaped tip.
4. The process of claim 1 , wherein the cooling device provides a cooled surface, and wherein the cooling step further comprises the step of contacting said shaped tip with said cooled surface to cool said shaped tip.
5. The process of claim 1 , wherein the cooling step includes a fan, wherein said fan blows a cooled gaseous substance on said shaped tip through a plurality of nozzles.
6. The process of claim 1 , wherein said shaped tip is substantially tapered.
7. The process of claim 1 , wherein said cooling step hardens said shaped tip for preventing a deformation therefrom.
8. The process of claim 1 , wherein said cooling step is conducted at a temperature between about 30° F. to about 60° F.
9. The process of claim 1 , wherein the cooling step is conducted for a time between about 0.5 seconds to about 2 seconds.
10. The process of claim 1 , wherein said heating device is an oven operating at a temperature between about 200° F. to about 305° F.
11. A process for manufacturing a pledget, the process comprising:
moving a plurality of absorbent members through an oven in a chain, said plurality of absorbent members being connected to one another, each of said plurality of absorbent members having a forward end and a rear end;
heating said plurality of absorbent members in said oven;
introducing said plurality of heated absorbent members to a movable first head tooling member having an orifice therein, said orifice having a depth and a concave surface therein with an orifice end;
moving said plurality of heated absorbent members in said orifice end using an insertion force, said forward end of each of said plurality of heated absorbent members forming a shaped tip, wherein said plurality of heated absorbent members are introduced through said orifice in substantially a centered fashion; and
cooling said plurality of heated absorbent members using a cooling device to form the pledget,
wherein said movable first head tooling member moves in a first direction, a second direction being perpendicular to said first direction, and a third direction being perpendicular to both said first direction and said second direction, said first through third directions being capable of moving said movable first head tooling member and aligning said movable first head tooling member with said oven.
12. The process of claim 11 , wherein the cooling step includes a cooled air stream, and further comprises the step of blowing said cooled air stream on said plurality of heated absorbent members to cool said shaped tip.
13. The process of claim 11 , wherein the cooling step includes a cooled surface, and further comprises the step of contacting said shaped tip with said cooled surface, thereby cooling said shaped tip.
14. The process of claim 11 , wherein the cooling step is provided by blowing a cooled gaseous substance on said shaped tip through a plurality of nozzles.
15. The process of claim 13 , wherein said cooled surface is selected from the group consisting of an inner surface of said movable first head tooling member, said first orifice, a lateral side of said first orifice, said concave surface, said orifice end, and any combinations thereof.