摘要:
A method of making reclosable packaging utilizes a longitudinally extending web of film material having cutouts therein. A length of zipper strip substantially half the width of the web and having an attached slider is applied transversely across the web of film material with the slider positioned in the cut out. The web is folded longitudinally with the zipper attached to the web and the slider positioned in the cut out. The edges of the web are brought together longitudinally and seamed to form a tube. The opposite ends of the tube are sealed to form the package. The resultant bag has the slider seated in the cut-out where it is readily visible to a consumer.
摘要:
A reclosable package has a first wall and a second wall opposite to the front wall A first zipper profile including a first interlocking member is attached to the first wall and a second profile having a second interlocking member, engageable with the first interlocking member, is attached to the second wall. A slider is positioned on the profiles for movement along the profiles from side to side of the package. Package material is provided which must be removed or ruptured to permit operation of the slider or to provide access to the package contents. In either event, the steps needed to permit the initial access to the package contents leave clear evidence for a consumer that the package has been opened.
摘要:
A tamper evident package has a first wall and a second wall facing the first wall. A zipper is provided at a top of the package. The first and second walls include portions that extend over the zipper and the first wall extension portion has a line of weakness that extends parallel to the zipper. A peel seal joins the first wall and the second wall above the interlocking members of the profiles and sections of the first and second walls extend beyond the peel seal. If the zipper has a slider, a pocket is formed in one of the walls to accommodate the slider. The slider pocket extends parallel to the zipper. Methods of forming the package on various types of form, fill and seal equipment as well as the equipment are also disclosed.
摘要:
A method of making a reclosable product package (64, 100, 142), a package-making apparatus (10) for the method and the reclosable product package (64, 100, 142) in which block cheese or another product (45) which does not slide well during packaging in placed on a continuous length of thermoplastic packaging film (12). Various folding directions (44, 62, 90, 106, 114) of the packaging film (12) and various placement of reclosable zippers (73, 108, 119) produce various reclosable product packages (64, 100, 142) with various peel seal (40, 41, 87, 88) arrangements.
摘要:
The reclosable plastic bag is formed by opposing panels of web with four sides sealed. A zipper is sealed within the bag so that a first zipper profile is sealed to a first opposing panel and a second zipper profile is sealed to a second opposing panel. A slider engaging the zipper profiles in a closed position protrudes from an opening in at least one of the opposing panels and may be further secured in place by a label. The slider cannot be moved from the position wherein the zipper profiles are closed to the position wherein the zipper profiles are open prior to the user tearing a perforated or otherwise weakened line across the panels. When this tear is made, it is unmistakable and intuitive evidence that the bag may have been previously opened and depending upon the circumstances, possibly tampered.
摘要:
A tamper evident package has a first wall and a second wall facing the first wall. A zipper is provided at a top of the package. The first and second walls include portions that extend over the zipper and the first wall extension portion has a line of weakness that extends parallel to the zipper. A peel seal joins the first wall and the second wall above the interlocking members of the profiles and sections of the first and second walls extend beyond the peel seal. If the zipper has a slider, a pocket is formed in one of the walls to accommodate the slider. The slider pocket extends parallel to the zipper. Methods of forming he package on various types of form, fill and seal equipment as well as the equipment are also disclosed.
摘要:
A method of making a reclosable product package (64, 100, 142), a package-making apparatus (10) for the method and the reclosable product package (64, 100, 142) in which block cheese or another product (45) which does not slide well during packaging in placed on a continuous length of thermoplastic packaging film (12). Various folding directions (44, 62, 90, 106, 114) of the packaging film (12) and various placement of reclosable zippers (73, 108, 119) produce various reclosable product packages (64, 100, 142) with various peel seal (40, 41, 87, 88) arrangements.
摘要:
A reclosable package having a front wall (10), a rear wall (14), bottom (18), top (16), and first and second sides (20, 22). A zipper (24) extends across the package top between the sides with a slider (30) disposed along the zipper between a zipper fully open position when the slider is at the first side (20) and a fully closed position when the slider is at the second side (22). A side seal (36) on the first side (20) joins the front wall (10) to the rear wall (14) and extends between the bottom (18) and the zipper (24). The side seal (36) further extends toward the second side (22) for a distance at least as long as the length of the slider (30). When the slider (30) is in the zipper fully open position it parks above the side seal (36) and out of the mouth of the package (10) leading to a product cavity (38).
摘要:
A horizontal form, fill and seal machine has a hollow forming box into which a continuous film is longitudinally fed from a packaging film supply. The forming box has a top, sides and open inlet and outlet ends. A pair of guide bars extend from the outlet end of the forming box adjacent the forming box sides and extending away from the inlet end. The forming box transforms the flat packaging film into a film envelope that extends about the guide bars and has a product-receiving surface that rests on a conveyor between the guide bars. Sealing bars are provided to join the longitudinal edges of the packaging film together and to form seals across the envelope at package length intervals after each deposit of product onto the product-receiving surface. A zipper attaching mechanism applies zipper to the film upstream of the forming box.
摘要:
A reclosable plastic bag (38) having a fin seal (35) which provides a weakness area (23, 80, 81, 84, 86) that extends into at least one side of the fin seal (35). Perforation axes (19, 20) for opening the reclosable plastic bag (38) may be aligned with the weakness area (23, 80, 81, 84, 86). A method of making the bag is also disclosed.