Claims
- 1. A reclosable flexible bag comprising:
- a pouch having front and back walls and a pouch opening at the upper edge thereof;
- a first fastener profile comprising a first tape having first and second edges and a protrusion disposed along the first edge and extending from the surface of the tape;
- a second fastener profile comprising a second tape having first and second edges and a substantially C-shaped member disposed along the first edge and extending from the surface of the tape;
- the second edges of the first and second tapes being affixed to the exterior of the walls of the pouch and parallel to the pouch opening so that upon closing, the protrusion and C-shaped members interlock, with the front and back walls being interposed therebetween.
- 2. The bag of claim 1 wherein the first and second tapes have a thickness greater than that of the pouch walls.
- 3. The bag of claim 1 wherein the first and second fastener profiles are integrally formed.
- 4. The bag of claim 1 wherein the fastener profiles and the pouch walls are formed of the same thermoplastic material.
- 5. The bag of claim 4 wherein the material is polyethylene or polyproplylene.
- 6. A method of manufacturing a plurality of reclosable flexible bags comprising:
- advancing a double web of thermoplastic film material having a first wall and a second wall;
- advancing a first fastener profile into proximity with the top portion of the exterior of the first wall, the first fastener profile comprising a first tape having first and second edges and a protrusion disposed along the first edge and extending from the surface thereof;
- advancing a second fastener profile into proximity with the top portion of the exterior of the second wall, the second fastener profile comprising a second tape having first and second edges and a substantially C-shaped member disposed along the first edge and extending from the surface thereof;
- affixing the second edges of the first and second tapes to the upper edge of the double web so that when the fastener profiles interlock, the first and second walls are interposed therebetween;
- sealing transversely across the web at intervals to form a pluraltiy of interconnected bags.
- 7. The method of claim 6 wherein the interconnected bags are severed to form a plurality of individual bags.
- 8. The method of claim 6 wherein the thermoplastic film material is in the form of a tube severed to form two double webs.
- 9. The method of claim 6 wherein the thermoplastic film material is folded along the longitudinal axis thereof to form the double web.
- 10. The method of claim 6 wherein the film material and the first and second fastener profiles are formed of the same thermoplastic material.
- 11. The method of claim 10 wherein the thermoplastic material is polyethylene or polypropylene.
- 12. The method of claim 6 wherein the first and second tapes have a thickness greater than that of the web.
- 13. The method of claim 6 werein the affixing is conducted by heat.
Parent Case Info
This is a continuation of copending application Ser. No. 000,019, filed on Jan. 2, 1987, now abandoned.
US Referenced Citations (9)
Foreign Referenced Citations (3)
Number |
Date |
Country |
1435827 |
Nov 1968 |
DEX |
551216 |
Nov 1956 |
ITX |
0097451 |
Feb 1961 |
NOX |
Continuations (1)
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Number |
Date |
Country |
Parent |
000019 |
Jan 1987 |
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