The present invention relates to improvements for reclosable polymeric bags. Disclosed is a polymeric film bag with film made from a blown film extrusion or a cast extrusion process. The bag is formed from a continuous multi-layer web of polymeric film. The bag comprises burn through side seals formed by a rotary drum that forms the sides of the bag and severs the film of the multi-layer film to form individual bags. Interlocking zipper stock is provided to the web and affixed to an upper end of the bag by an adhesive. Further disclosed is a high-speed continuous process and system for manufacturing the reclosable bags.

A thermoplastic bag includes raised rib-like elements that allow the thermoplastic bag to expand. The thermoplastic bag further includes side seals having rib-like elements that allow the side seals to expand. Additionally, in one or more implementations, the thermoplastic bag includes one or more of a material formulation, a density of raised rib-like elements, a height of raised rib-like elements, or land areas that provide the raised rib-like elements with a reduced rebound ratio.

The present invention provides a method of making re-closable package (10) and a product made therefrom. The said method comprises providing a first web (46) and a second web (50), folding a predetermined portion (P) of the first web (46) into a V-shape (58) thereby forming an extended portion and cutting the V-shape (58) of the first web (46) to form a pair of extended panels (62). A re-closable zipper (42) sealed with the extended panels (62). The first web (46) sealed with the second web (50) at a first sealing zone (SZ1) and second sealing zone (SZ2). Subsequently, cut the first web (46) and the second web (50) at the first sealing zone (SZ1) thereby obtaining a re-closable package (10). The said re-closable package (10) comprising a first panel (14), a second panel (18) and optionally side gussets (22, 26) and a bottom gusset (30).

A reclosable flexible pouch having first and second interlockable closure formations integrally formed in two longitudinal side portions of a continuous flexible sheet.

A system and process for making a container or pouch that separates the cutting and sealing steps into two distinct steps with a separate step of rotating the container or pouch template 90 degrees relative to a direction of travel between the cutting and sealing steps.

A female belt-shaped base is attached to a bag body at a region from a female hook to a first end near an open end of the bag body and to a second end near a housing space. A male belt-shaped base is attached to the bag body only in a bonding region without being attached at a region from a position where an engagement portion is continuously attached to a first end near the open end of the bag body.

A reclosable bag has first and second walls and an open top defined by first and second elongate flexible fastener strips adjacent the top of the walls. One fastener strip has a profile portion forming a groove and a portion forming a rib. A portion of the rib is received and retained in the groove when the bag top is closed. Each fastener strip has a base connected to the respective wall. A slider is mounted on the strips and movable in one direction to open the bag, and in the opposite direction to close the bag. A separator, located in the slider, extends downwardly into the space between the top of the slider and the upper edges of the fastener strips. A pair of flanges extend outwardly from the bag walls, one on each wall. The flanges are disposed parallel to the top of the walls, and substantially below the fastener strips, the flanges being sized, constructed and arranged for retention within the slider.

A bag making apparatus and a bag making method make bags. The bag has a first panel part and a first flap part formed by folding a first sheet part, and a second panel part and a second flap part formed by folding a second sheet part. The first and second panel parts face each other. The first and second flap parts are interposed between the first and second panel parts and face each other. An open edge is formed by folded edges of the first and second sheet parts. The bag further comprises adhesive located between the open edge and the engagement tool, interposed between the first and second flap parts and extending across the widths of the first and second sheet parts to peelably adhere the first and second flap parts to each other. Alternatively, the second sheet part may only consists of the second panel part.

A first body of fastener material is joined to a first web of panel material while a second body of fastener material is joined to a second web of panel material. The first and second bodies of fastener material are interposed between the first and second webs of panel material and aligned with each other after the first and second webs of panel material are superposed with each other. A third body of fastener material is joined to a web of side gusset material to be interposed between the first and second bodies of fastener material after the first and second webs of panel material are superposed with each other, the first and second bodies of fastener material being aligned with the third body of fastener material.

An easy-open and reclosable package includes a pouch including a discrete laminate including a tape including a base strip coated with a pressure sensitive adhesive, and a panel section having a die cut defining a die cut segment, the panel section adhered by the PSA to the base strip; the panel section anchored to a first side panel; the second surface of the base strip anchored to the inner surface of a second side panel; and a product in the pouch. The die cut segment is so arranged with respect to the pressure sensitive adhesive that when the package is opened, the package can be reclosed by adhering the pressure sensitive adhesive to the first side panel.