摘要:
The invention relates to a method and a device for gas filling and sealing of a duct intended to be filled with gas and positioned in a container of a collapsible type. The duct is defined by two opposite side walls which are joined along a connecting portion and comprises an inlet arranged in one of the side walls. A part of the container that comprises the inlet is clamped between an abutment and a gas module which is axially movable towards the abutment. Clamping occurs in such a manner that one off the two side walls included in the duct is allowed, in response to a gas flow supplied from the gas module and entering the duct through said inlet, to bulge to form a free passage into the duct for filling the same with gas. After completion of the gas filling, the duct is sealed. The invention also relates to a container blank having a duct which is specially developed for the method and the device.
摘要:
A method for the production and filling of packaging means is described and claimed, in which the following production steps are performed: flattened tubular film material is wound off a roll along the primary axis of symmetry of the hose, the tubular material is provided via a welding and separating process with a first lateral welding seam perpendicular in reference to the tubular axis and separated along a separation line, the hose sections open at one side are filled, the still open end of the hose section open at one side is provided with a second lateral welding seam. It is considered novel and inventive that two subsequent separation lines are inserted in the hose at a distance, which is smaller than the distance between the two edges of the hose.Additionally, a device is described and claimed comprising features allowing the implementation of the method.
摘要:
A bag including a containment portion having an opening to receive items, a bag seal at an end of the bag opposite the opening, a handle seal at an end of the containment portion opposite the opening, the handle seal located between the bag seal and the opening, and a handle in a handle body formed between the handle seal and the bag seal.
摘要:
In a container for packaging filling materials, in particular a bag or pouch made of plastic film, comprising at least one container wall surrounding the filling material, which has at least one front and rear wall, and comprising superposed layers formed in the top region of the container, wherein in the top region of the container predetermined layers are connected over at least one section by means of at least one closure means closing the container, below which a section of the top region located adjacent to the region fitted with the opening has a filling material withdrawal region and that at least one section of a connecting seam is disposed so that it runs around an opening at least in some areas in such a manner that in the top region the multilayer region is separated in a sealing manner from the filling space of the container.
摘要:
A process of making bags from tubular film (1) by means of passing tubular film through a plurality of stations performing the steps of providing the tubular film with side gussets (8), V-folding the film, providing a perforation which in a final product outlines the neckline (2) of a T-shirt, providing a perforation, forming a severance line (3) of a bag, providing a transverse weld (4), constituting a top end weld, ahead of the perforation, and providing the film with a transverse weld (5), constituting a bottom end weld, behind of said perforation, wherein the process further comprise a step of, prior to providing the tubular film with a weld, interpose between the 2×4 layers of film, a barrier (6) such that four layers of film are disposed on a first side of the barrier and four layers of film are disposed an a second side of the barrier, whereby welding of the 2×4 layers of film, separated by the barrier, in the subsequent steps extends through four respective contiguous layers of film.
摘要:
Disposable plastic bags are provided that include multiple internal compartments and methods for making such bags. In one embodiment, a disposable plastic bag includes substantially transparent outer panels attached together to define a main compartment, an opening for accessing the main compartment, a main closure for selectively opening and closing the opening into the main compartment; and a plurality of internal panels attached to one of the outer panels to define a plurality of internal compartments separate from and accessible through the main compartment, the internal panels comprising closures for selectively opening and closing the respective internal compartments.
摘要:
The invention relates to a device for gas filling of a duct (7) in a container (1) of a collapsible type, said duct (7) being defined by a first and a second side wall (2) of the container (1), the side walls (2) being joined along a common connecting portion (4), and said duct (7) comprising an inlet (15) arranged in the first side wall (2). The device comprises an abutment (21) and a gas module (26) with an outlet (28), which is arranged in a surface of the gas module (26) facing the abutment (21), and a clamping means (29) arranged outside the outlet (28), which clamping means (29) is applicable to the abutment (21) for clamping the container (1), and which outlet (28), in connection with the clamping of the container (1), is applicable to said inlet (15) for supply of gas to the duct (7) of the container. The device is characterized by a groove (30) formed in said surface of the gas module (26), which groove surrounds the outlet (28) and is positioned radially inside said clamping means (29), said groove (30) being arranged to prevent, when supplying gas to the duct (7) intended to be filled with gas, build-up of a pressure above atmospheric on the side, facing the gas module, of said first side wall (2) surrounding said inlet (15). The invention also relates to a method for filling such a duct with gas.
摘要:
The invention relates to a device for gas filling of a duct (7) in a container (1) of a collapsible type, said duct (7) being defined by a first and a second side wall (2) of the container (1), the side walls (2) being joined along a common connecting portion (4), and said duct (7) comprising an inlet (15) arranged in the first side wall (2). The device comprises an abutment (21) and a gas module (26) with an outlet (28), which is arranged in a surface of the gas module (26) facing the abutment (21), and a clamping means (29) arranged outside the outlet (28), which clamping means (29) is applicable to the abutment (21) for clamping the container (1), and which outlet (28), in connection with the clamping of the container (1), is applicable to said inlet (15) for supply of gas to the duct (7) of the container. The device is characterised by a groove (30) formed in said surface of the gas module (26), which groove surrounds the outlet (28) and is positioned radially inside said clamping means (29), said groove (30) being arranged to prevent, when supplying gas to the duct (7) intended to be filled with gas, build-up of a pressure above atmospheric on the side, facing the gas module, of said first side wall (2) surrounding said inlet (15). The invention also relates to a method for filling such a duct with gas.
摘要:
A large molded article block free from distortion and residual stress can be obtained by means of a method of producing a polytetrafluoroethylene molded article by compression-molding a polytetrafluoroethylene powder to form a preform and baking the resulting preform with rotating. Furthermore, a film or sheet having less curling and wrinkle can be obtained by cutting the molded article block.
摘要:
A plastic bag comprising a front wall, a rear wall and a sealed bottom. A purchased commodity is placed in the bag and the open top of the bag is folded over, with the folded portion being positioned against the rear wall of the bag. A pair of convergent heat seals secures the folded portion to the remainder of the bag, thereby forming a pocket to receive a hand. The bag is then carried by placing a hand in the pocket.