IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0104413
(2002-03-21)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
38 인용 특허 :
9 |
초록
A standup bag for granular products or the like and a method of manufacturing the bag. The standup bag is manufactured from an extruded heat sealable material and includes both an integral handle and a perforation to facilitate opening and pouring out the contents of the bag.
대표청구항
▼
1. A bag formed of a heat sealable film, comprising:front and rear walls;two side walls;a top portion;a bottom portion upon which the bag will stand in a vertical orientation when filled with a material;gussets adjacent to the top and bottom portions formed by folding inwardly the two side walls bet
1. A bag formed of a heat sealable film, comprising:front and rear walls;two side walls;a top portion;a bottom portion upon which the bag will stand in a vertical orientation when filled with a material;gussets adjacent to the top and bottom portions formed by folding inwardly the two side walls between the front and rear walls;ear sections formed at both the tops and bottoms of the gussets when the side walls are folded inwardly; whereinthe heat sealable film has an inside layer and an outer layer, the inside layer having a lower seal initiation point than the outer layer; andthe heat sealable film includes heat resistant ink or overcoating on its outer layer.2. The bag according to claim 1, wherein the heat sealable film is extruded and non-laminated.3. The bag according to claim 1, wherein the heat sealable film is a multi-layer film.4. The bag according to claim 1, wherein the heat sealable film is extruded from a group consisting essentially of Low Density Polyethylene (LDPE), Linear Low Density Polyethylene (LLDPE), metallocene catalyzed polyolefins, High Density Polyethylene (HDPE), polypropylene, polypropylene co-polymers, polyethylene co-polymers, or blends of the LDPE, LLDPE, metallocene catalyzed polyolefins, HDPE, polypropylene, polypropylene co-polymers, and polyethylene co-polymers.5. The bag according to claim 1, wherein the heat sealable film is structurally rigid.6. The bag according to claim 1, wherein the bag is rectangular when standing upright on the bottom portion.7. The bag according to claim 1, wherein the heat sealable film is not printed.8. The bag according to claim 1, wherein the heat resistant ink or overcoating is applied in a pattern, leaving no ink or overcoating between the ear sections at the respective tops or bottoms of the gussets.9. The bag according to claim 1, wherein the inside layer has a higher hot tack than the outer layer.10. The bag according to claim 1, wherein the heat sealable film is coextruded on a multi-layer blown or cast film line.11. The bag according to claim 1, wherein the bag is formed on a Vertical Form, Fill and Seal bag machine.12. The bag according to claim 1, further comprising a top edge heat seal and a bottom edge heat seal.13. The bag according to claim 1, wherein the top and bottom edge heat seals are corrugated.14. The bag according to claim 1, wherein the gussets adjacent the top portion are vertical.15. The bag according to claim 1, wherein the gussets adjacent the bottom portion are horizontal.16. The bag according to claim 1, wherein the overcoating is applied over all areas of the bag that contact heat sealing jaws.17. A bag formed of a heat sealable film, comprising:front and rear walls;two side walls;a top portion;a bottom portion upon which the bag will stand in a vertical orientation when filled with a material;gussets adjacent to the top and bottom portions formed by folding inwardly the two side walls between the front and rear walls;ear sections formed at both the tops and bottoms of the gussets when the side walls are folded inwardly;the top portion having a perforation that may be torn to open the bag and allow opening of at least one of the gussets to form a spout for pouring out material in the bag; andan integral handle in the top portion, whereinthe heat sealable film has an inside layer and an outer layer, the inside layer having a lower seal initiation point than the outer layer; andthe heat sealable film includes heat resistant ink or overcoating on its outer layer.18. The bag according to claim 17, wherein the heat sealable film is extruded from a group consisting essentially of Low Density Polyethylene (LDPE), Linear Low Density Polyethylene (LLDPE), metallocene catalyzed polyolefins, High Density Polyethylene (HDPE), polypropylene, polypropylene co-polymers, polyethylene co-polymers, or blends of the LDPE, LLDPE, metallocene catalyzed polyolefins, HDPE, polypropylene, polypropylene co-polymers, and polyethylene co-polymers.19. The bag according to claim 17, wherein the heat sealable film is a multi-layer film.20. The bag according to claim 17, wherein the heat sealable film is structurally rigid.21. The bag according to claim 20, wherein the bag is rectangular when standing upright on the bottom portion.22. The bag according to claim 17, wherein the heat sealable film is coextruded on a multi-layer blown or cast film line.23. The bag according to claim 17, wherein the heat sealable film is not printed.24. The bag according to claim 17, further comprising ear sections at the tops and bottom of the gussets and wherein the heat resistant ink or overcoating is applied in a pattern, leaving no ink or overcoating between the ear section at the respective tops or bottoms of the gussets.25. The bag according to claim 17, wherein the heat sealable film has an inside layer and an outer layer, the inside layer having a higher hot tack than the outer layer.26. The bag according to claim 17, wherein the bag is formed on a Vertical Form, Fill and Seal bag machine.27. The bag according to claim 17, further comprising a top edge heat seal and a bottom edge heat seal.28. The bag according to claim 27, wherein the integral handle is positioned in the top edge heat seal.29. The bag according to claim 27, wherein the perforation is positioned below the top edge heat seal.30. The bag according to claim 27, wherein the top and bottom edge heat seals are corrugated.31. The bag according to claim 17, wherein the gussets adjacent the top portion are vertical.32. The bag according to claim 17, wherein the gussets adjacent the bottom portion are horizontal.33. The bag according to claim 17, wherein the overcoating is applied over all areas of the bag that contact heat sealing jaws.34. The bag according to claim 17, wherein simultaneously the top portion of the bag is heat sealed, the bottom portion of a next adjacent bag is heat sealed, the handle is formed in the top portion of the bag and the bag is displaced from the next adjacent bag.35. The bag according to claim 17, wherein the perforation is formed by a cutting edge which cuts into the bag.36. The bag according to claim 17, wherein the handle is cut in a sealing area.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.