Method for forming a bag
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 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 profiles cooperating to form a reclosable seal;
forming a slit in the track, the slit being formed through the profiles of the track and portions of the fins nearest the profiles;
attaching a slider to the track, the slider attaching over the slit in the track;
sealing the slit in the track creating a resealed area;
creating a first end stop and a second end stop on the track;
attaching the fastener track to a film or the bag after the act of attaching the slider to the track and after the act of sealing the slit in the track creating a resealed area; and
if attaching the fastener track to the film, forming the bag from the film.
2. The method of claim 1 wherein the fastener track is attached to the bag.
3. The method of claim 1 wherein the fastener track is attached to the film.
4. The method of claim 1 wherein the first and second end stops are created at or near the resealed area.
5. The method of claim 1 , wherein the act of creating the first end stop and the second end stop utilizes ultrasonic-welding.
6. The method of claim 5 , wherein the sealing the slit is performed utilizing ultrasonic welding and the acts of sealing the slit in the track and creating the first end stop and the second end stop are performed using a single ultrasonic-welding process.
7. The method of claim 1 , wherein the act of attaching the slider to the track includes utilizing a pusher that holds the slider and applies a lateral force on the track, the lateral force displacing the track as the slit approaches the holder allowing the slider to attach to the track.
8. The method of claim 1 , wherein the act of forming the slit includes forming the slit 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.
9. The method of claim 8 , wherein the act of forming the slit forms the slit 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.
10. 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 before the act of attaching the fastener track to a film or a bag.
11. A method of 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 profiles cooperating to form a reclosable seal;
forming a slit in the track, the slit being formed through the profiles of the track and portions of the fins nearest the profiles;
attaching a slider to the track, the slider attaching over the slit in the track;
sealing the slit in the track creating a resealed area;
attaching the fastener track to a film or the bag after the act of attaching the slider to the track and after the act of sealing the slit in the track creating a resealed area; and
if attaching the fastener track to the film, then forming the bag from the film.
12. The method of claim 1 wherein the fastener track is attached to the bag.
13. The method of claim 1 wherein the fastener track is attached to the film.
14. The method of claim 1 , wherein the act of forming the slit includes forming the slit 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.
15. The method of claim 4 , wherein the act of forming the slit forms the slit 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.
16. 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 the slider, a first end stop, and a second end stop before the act of attaching the fastener track to a film or a bag.
17. A method of forming, filling and sealing 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 profiles cooperating to form a reclosable seal;
forming a slit in the track, the slit being formed through the profiles of the track and portions of the fins nearest the profiles;
attaching a slider to the track, the slider attaching over the slit in the track;
sealing the slit in the track creating a resealed area;
creating a first end stop and a second end stop on the track;
attaching the fastener track to a film or the bag after the act of attaching the slider to the track, after the act of sealing the slit in the track creating the resealed area and after the act of creating the first end stop and the second end stop on the track;
if attaching the fastener track to the film, forming the bag from the film;
adding product to the bag; and
sealing the bag.
18. The method of claim 17 wherein the fastener track is attached to the bag.
19. The method of claim 17 wherein the fastener track is attached to the film.
20. The method of claim 17 wherein the first and second end stops are created at or near the resealed area.