Resealable plastic packaging container with hook and loop closure

• US 6,691,886 B1
• Filed: 07/13/2001
• Issued: 02/17/2004
• Est. Priority Date: 12/21/1998
• Status: Expired due to Fees

• Current Assignee: Convenience Food Systems BV
• Original Assignee: Convenience Food Systems BV
• Inventors: Karlsson, Roland, Giebel, Matthias, Reiners, Ulrich, Berndt, Dieter, Waldau, Christoph, Fux, Rudi
• Primary Examiner(s): Young, Lee
• Assistant Examiner(s): ELOSHWAY, NIKI MARINA
• Application Number:
  US09/868,269
• Time in Patent Office: 949 Days
• Field of Search: 220/359.1, 220/359.2, 220/359.3, 220/359.4, 220/359.5, 220/377, 220/315, 220/810, 220/833, 220/835, 220/4.21, 220/4.22, 220/4.23, 220/4.24, 220/324, 383/63
• US Class Current: 220/359.1
• CPC Class Codes: B29C 65/56 using mechanical means or mechanical connections, e.g. form-fits
• CPC Class Codes: B29C 65/76 Making non-permanent or releasable joints
• CPC Class Codes: B29C 66/112 Single lapped joints
• CPC Class Codes: B29C 66/131 Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
• CPC Class Codes: B29C 66/1312 Single flange to flange joints, the parts to be joined being rigid the parts to be joined being flexible B29C66/133
• CPC Class Codes: B29C 66/24221 being circular B29C66/51 takes precedence
• CPC Class Codes: B29C 66/24244 forming a rectangle
• CPC Class Codes: B29C 66/3472 in the plane of the joint, e.g. along the joint line in the plane of the joint or perpendicular to the joint line in the plane of the joint
• CPC Class Codes: B29C 66/53461 joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
• CPC Class Codes: B29C 66/542 joining hollow covers or hollow bottoms to open ends of container bodies
• CPC Class Codes: B29C 66/545 one hollow-preform being placed inside the other
• CPC Class Codes: B29C 66/71 characterised by the composition of the plastics material of the parts to be joined welding bar compositions B29C65/125
• CPC Class Codes: B29C 66/72325 Ceramics
• CPC Class Codes: B29C 66/72341 for gases
• CPC Class Codes: B29C 66/727 being porous, e.g. foam
• CPC Class Codes: B29C 66/73921 characterised by the materials of both parts being thermoplastics
• CPC Class Codes: B29C 66/9141 by controlling or regulating the temperature
• CPC Class Codes: B29C 66/919 characterised by specific temperature, heat or thermal flux values or ranges specific electrical resistance values B29C66/81262
• CPC Class Codes: B29C 66/929 characterized by specific pressure, force, mechanical power or displacement values or ranges
• CPC Class Codes: B29K 2023/06 PE, i.e. polyethylene
• CPC Class Codes: B29K 2023/086 : EVOH, i.e. ethylene vinyl alcohol copolymer
• CPC Class Codes: B29K 2023/10 : Polymers of propylene
• CPC Class Codes: B29K 2023/12 : PP, i.e. polypropylene
• CPC Class Codes: B29K 2067/003 : PET, i.e. poylethylene terephthalate
• CPC Class Codes: B29L 2031/7164 : Blister packages
• CPC Class Codes: B65D 2313/02 : of hook-and-loop type
• CPC Class Codes: B65D 2543/00425 : Lids or covers welded or adhered to the container
• CPC Class Codes: B65D 77/2032 : by peeling or tearing the cover from the container
• CPC Class Codes: B65D 77/2088 : attached to the cover

Abstract

The invention relates to a resealable plastic packaging container (1) consisting of a tray (2) and a lid film (3) which in the sealing area (4) is sealed to the tray (2) such that it can be at least partly peeled back. The plastic packaging container comprises at least one hook and loop closure (9, 10, 11) whose two complementary parts (9′, 10′, 11′) are arranged opposite each other on the tray (2) and lid film (3), respectively, and by means of which the plastic packaging container can be resealed after the peel-back seal has been opened.

Claims

1. A resealable plastic packaging container comprising a packaging tray and a lid film which in a sealing area of the packaging container is sealed to the packaging tray such that it can be at least partly peeled back, wherein the plastic container has at least one hook and loop closure whose complementary parts are arranged opposite each other on the packaging tray and lid film and by means of which the plastic packaging container can be resealed after opening, and wherein the lid film has at least one elevation and the packaging tray at least one complementary recess which are arranged opposite each other in the sealing area and on or in each of which a closure element of the hook and loop closure is arranged.

3. The resealable plastic packaging container according to claim 1 or 2, wherein the hook and loop closure or closures is or are arranged outside the sealing area.

4. The resealable plastic packaging container according to claim 1 or 2, wherein the hook and loop closure or closures is or are arranged in the area of the peel-back seal.

6. The resealable plastic packaging container according to claim 1, 2 or 5, wherein 5 to 25% of the sealing area has a permanent seal.

7. The resealable plastic packaging container according to claim 6, wherein the hook and loop closure or closures and the area of permanent sealing are diametrically opposite each other.

8. The resealable plastic packaging container according to claim 1, 2 or 5, wherein the complementary closure elements of the hook and loop closure are each firmly bonded to the lid film and to the pack aging tray.

9. The resealable plastic packaging container according to claim 1, 2 or 5, further comprising at least one additional means for resealing the packaging container.

10. The resealable plastic packaging container according to claim 9, wherein said means is a zip-fastener, lip seal, clip seal or combination thereof.

11. The resealable plastic packaging container according to claim 1, 2 or 5, wherein the packaging tray is made of an optionally multi-layer film with an expanded backing film as base film and optionally with a gas barrier layer.

12. The resealable plastic packaging container according to claim 1, 2 or 5, wherein the lid film is constituted of a thermoformable film of polyethylene terephthalate or polyproylene with an ethylene-vinyl alcohol copolymer gas barrier layer and polyethylene, and the packaging tray is constituted of an expanded polypropylene film as backing film.

2. A resealable plastic packaging container comprising a packaging tray and a lid film which in a sealing area is sealed to the packaging tray such that it can be at least partly peeled back, wherein the plastic packaging container has at least one hook and loop closure whose complementary parts are arranged opposite each other on the packaging tray and lid film and by means of which the plastic packaging container can be resealed after opening, and wherein the lid film has at least one recess and the packaging tray at least one complementary elevation which are arranged opposite each other in the sealing area and on or in each of which a closure element of the hook and loop closure is arranged.

5. A resealable plastic packaging container comprising a packaging tray and a lid film which in a sealing area is sealed to the packaging tray such that it can be at least partly peeled back, wherein the plastic packaging container has at least one hook and loop closure whose complementary parts are arranged opposite each other in the sealing area on the packaging tray and lid film and by means of which the plastic packaging container can be resealed after opening, and wherein the lid film or the packaging tray has at least one recess and one closure element of the hook and loop closure each time is arranged in the recess and the respective complementary part of the hook and loop closure is at the level of the sealing plane.