Method for forming a slider reclosure segment
View Patent ↗A method of forming a reclosable fastener track having a slider. The process provides a reclosable fastener track, forms a slit in the fastener track, attaches a slider to the fastener track, seals the slit in the fastener track after the slider attaches, and creates a first and a second end stop on the track.
1. A method of forming a continuous reclosable fastener track having a plurality of sliders for attaching to a film for forming a bag, the method comprising the acts of:
providing a reclosable fastener track, the track having a first fin portion and a second fin portion, the first fin portion having a first profile and the second fin portion having a second profile, the first and the second profile cooperating to form a reclosable seal;
forming a plurality of slits in the track, the plurality of slits being formed through the profiles of the track and portions of the fins nearest the profiles;
attaching a plurality of sliders to the track, the plurality of sliders attaching over a respective one of the slits in the track;
sealing the plurality of slits in the track creating a plurality of resealed areas; and
creating a plurality of first end stops and a plurality of second end stops on the track at or near a respective one of the resealed areas,
after creating the plurality of resealed areas in the track and creating the plurality of first and second end stops on the track, attaching the continuous reclosable fastener track to a film for forming a bag.
2. The method of claim 1 , wherein the act of creating the plurality of first end stops and the second end stops utilizes ultrasonic-welding.
3. The method of claim 2 , wherein the sealing of the slits is performed utilizing ultrasonic welding and the acts of sealing the slits in the track and creating the first end stops and the second end stops are performed using a single ultrasonic-welding process.
4. The method of claim 1 , wherein the act of attaching the sliders to the track includes utilizing a pusher that holds the sliders and applies a lateral force on the track, the lateral force displacing the track as the slits approach the holder allowing the sliders to attach to the track.
5. The method of claim 1 , wherein the act of forming the slits includes forming the slits at an angle of at from about a thirty degrees to about a ninety degrees relative to the direction of motion of the reclosable fastener track.
6. The method of claim 5 , wherein the act of forming the slits forms the slits at an angle of about thirty-five degrees to an angle of about fifty-five degrees relative to the direction of travel of the reclosable fastener track.
7. The method of claim 1 further comprising the act of cutting the fastener track at about the location of the resealed area providing segments of reclosable fastener track having a slider, a first end stop, and a second end stop.
8. The method of claim 1 , wherein the fastener track comprises polymeric materials.
9. A method of forming a continuous reclosable fastener track having a plurality of sliders for attaching to a film for forming a bag, the method comprising the acts of:
providing a reclosable fastener track, the track having a first fin portion and a second fin portion, the first fin portion having a first profile and the second fin portion having a second profile, the first and the second profile cooperating to form a reclosable seal;
forming a plurality of slits in the track, the plurality of slits being formed through the profiles of the track and portions of the fins nearest the profiles;
attaching a plurality of sliders to the track, the plurality of sliders attaching over a respective one of the slits in the track; and
sealing the plurality of slits in the track creating a plurality of resealed areas;
after creating the plurality of resealed areas in the track, attaching the continuous reclosable fastener track to a film for forming a bag.
10. The method of claim 9 , wherein the act of attaching the plurality of sliders to the track includes utilizing a pusher that holds the plurality of sliders and applies a lateral force on the track, the lateral force displacing the track as the slits approach the holder allowing the plurality of sliders to attach to the track.
11. The method of claim 9 , wherein the act of forming the slits includes forming the slits at an angle of at from about a thirty degrees to about a ninety degrees relative to the direction of motion of the reclosable fastener track.
12. The method of claim 11 , wherein the act of forming the slits forms the slits at an angle of about thirty-five degrees to an angle of about fifty-five degrees relative to the direction of travel of the reclosable fastener track.
13. The method of claim 9 , wherein the sealing the slits is performed utilizing ultrasonic welding.