B31B70/96

Method and system for manufacturing bags

A system and method of manufacturing reinforced bags having reinforcing elements applied about the bags to support the bags in an opened and/or upstanding configuration. A web of bag material can be fed from a supply and can be folded and secured to form the bags. A series of reinforcing strips can be fed through an adhesive application station for application of an adhesive material thereto in a desired pattern. The reinforcing strips and bags are brought into registration and are adhesively attached to form the reinforced bags.

THERMOPLASTIC BAGS WITH PHASED DEFORMATION PATTERNS

Thermoplastic bags with phased deformation patterns are described. In particular, one or more implementations comprise thermoplastic bags with ring rolling, SELFing, or other deformation patterns phased or aligned relative to the sides of the bags. The phased deformation patterns can allow for reducing or eliminating deformation patterns in areas of the thermoplastic bag in which side seals or other seals are formed. Additionally or alternatively, the phased deformation patterns can provide for zones that provide differing properties (e.g., functional or aesthetic). Such zones can vary aligned along a width of the thermoplastic bag and optionally also vary along a height of the thermoplastic bag. The differing zones can provide the thermoplastic bags with phased deformations that provide leak prevention, liquid containment, and other benefits.

REINFORCED THERMOPLASTIC BAG WITH EXTENDED HEM SKIRT
20220219865 · 2022-07-14 ·

The present disclosure relates to strata 2-ply drawstring trash bags implementing a J-flap extended hem to provide increased top-of-bag strength. In one or more embodiments, the J-flap extended hem includes a 2-ply web folded back on itself (e.g., during a hem folding operation to enclose the drawstring within a hem channel). In one or more implementations, a hem seal secures the 2-ply web to an inside surface of the trash bag. At least one ply of the 2-ply web fold-over extends past the hem seal and is additionally secured to the inside surface of the trash bag via one or more hem skirt seals. For reduced material consumption in certain embodiments, the J-flap extended hem of the present disclosure imparts added strength using only one ply of the 2-ply web fold-over. In some embodiments, at least one ply of the 2-ply web fold-over includes ring-rolled portions to add top-of-bag strength.

THERMOPLASTIC BAGS WITH DUPLICATIVE SEALS

A thermoplastic bag includes duplicative seals. In particular, in one or more implementations, a thermoplastic bag includes a first seal and at least a second seal reinforcing the same area of the thermoplastic bag. For instance, in one or more implementations, the thermoplastic bag includes multiple seals along each side edge or along the hem. If one seal fails, the other seal(s) can remain in place to prevent leaks. Thus, the duplicative seals of the thermoplastic bag can provide reinforced strength and desired aesthetics.

BAG MAKING MACHINES AND METHODS THEREOF

A machine for processing a web of material into bags includes several sections for processing the web of material into bags. An input section is configured to receive a roll of the web of material, a sealing section is configured to form seals in the web of material, and a winder section configured to wind the bags into rolls of bags may be included. A bander section configured to band each roll of bags may be included. A hem forming section configured to form a hem in the web of material may be included. A draw tape unwind station for unwinding draw tape for bags may be included. Related methods are further disclosed.

BAG MAKING MACHINES AND METHODS THEREOF

A machine for processing a web of material into bags includes several sections for processing the web of material into bags. An input section is configured to receive a roll of the web of material, a sealing section is configured to form seals in the web of material, and a winder section configured to wind the bags into rolls of bags may be included. A bander section configured to band each roll of bags may be included. A hem forming section configured to form a hem in the web of material may be included. A draw tape unwind station for unwinding draw tape for bags may be included. Related methods are further disclosed.

SYSTEM AND PROCESS FOR MAKING A POUCH OR CONTAINER
20210107247 · 2021-04-15 ·

A process for making a container includes the step of providing at least one of a slider, sticker, textured surface, pattern, or embossed surface along a folded web of thermoplastic material that comprises a plurality of container templates. The process also includes the step of picking up, with a turner, each container template. The turner includes one or more rotator assemblies that include a rotatable shaft and a bag-contacting surface connected to an end of the rotatable shaft. The bag-contacting surface is configured to engage a top exterior side of each container template. Additionally, the process includes the step of reorienting, with the turner, each container template. The rotatable shaft is configured to horizontally translate and rotate each container template.

SYSTEM AND PROCESS FOR MAKING A POUCH OR CONTAINER
20210107247 · 2021-04-15 ·

A process for making a container includes the step of providing at least one of a slider, sticker, textured surface, pattern, or embossed surface along a folded web of thermoplastic material that comprises a plurality of container templates. The process also includes the step of picking up, with a turner, each container template. The turner includes one or more rotator assemblies that include a rotatable shaft and a bag-contacting surface connected to an end of the rotatable shaft. The bag-contacting surface is configured to engage a top exterior side of each container template. Additionally, the process includes the step of reorienting, with the turner, each container template. The rotatable shaft is configured to horizontally translate and rotate each container template.

System and process for making a pouch or container

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.

System and process for making a pouch or container

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.