摘要:
Compositions, methods, and apparatus for manufacturing sheets having a highly inorganically filled matrix. Suitable inorganically filled mixtures are prepared by mixing together an organic polymer binder, water, one or more aggregate materials, fibers, and optional admixtures in the correct proportions in order to form a sheet which has the desired performance criteria. The inorganically filled mixtures are formed into sheets by first extruding the mixtures and then passing the extruded materials between a set of rollers. The rolled sheets are dried in an accelerated manner to form a substantially hardened sheet, such as by heated rollers and/or a drying chamber. The inorganically filled sheets may have properties substantially similar to sheets presently made from traditional materials like paper, paperboard, polystyrene, plastic, or metal. Such sheets can be cut, rolled, pressed, scored, perforated, folded, and glued to fashion articles from the sheets. They have especial utility in the mass production of containers, particularly food and beverage containers.
摘要:
A process for the construction of a bulk container including a glued bottom portion. A blank is suspended in the shape of the desired container and is positioned over a bottom portion. Adhesive or glue is applied to the bottom portion in areas which will contact the blank. The blank is lowered into contact with the blank and fins are formed. The fins are either folded, cut and/or secured to complete the container in one of several ways.
摘要:
A heat-insulating paper container comprising a body member and a bottom panel member, part of the outer surface of said body member being provided with printing of an organic solvent based ink, wherein a thick foamed heat-insulating layer that is made of a thermoplastic synthetic resin film is formed in the printed area of said outer surface whereas a less thick foamed heat-insulating layer that is made of the same thermoplastic synthetic resin film is formed in the non-printed area of said outer surface. If desired, part of the thermoplastic synthetic resin film may be adapted to remain totally unfoamed.
摘要:
The vessel portion of a gas-tight container suitable for packaging fresh foods is produced as a composite of paperboard and polymer film. A pair of folded paperboard blanks, pre-cut and pre-formed, are inserted into the opposite halves of split mold elements to a blow molding machine. Vacuum orifices in each mold half unit temporarily secure the position of a respective paperboard blank. The paperboard lined mold halves are closed upon a hot, extruded parison of malleable polymer leaving an end portion of the parison tube projecting from the closed mold unit. A fluid conducting needle penetrates this projected end portion to inflate the parison with an apppropriate blowing gas. Such inflation expands the malleable polymer, seamlessly and creaselessly, into the internal corners and crevices of the folded paperboard blanks. Following chilling, the mold unit is opened and the pair of paperboard blanks are ejected as a singular unit, joined by a molded flange of the continuous polymer film. Finally, the two polymer coated paperboard vessels are separated by trimming about the flange.
摘要:
A carton (11) with parallel flat front and rear surfaces joined by curved sides and a flip-top lid (10) hinged to the carton. The carton is composed of two superimposed layers adhesively secured at a joint line at lapped edges. The outer layer is slit along its front surface parallel to the carton ends and along upwardly extending curves around the sides to a fold line parallel to and raised above the front slit and the inner layer (12) has a cutout in its front surface above the front slit of the outer layer. The cutout curves upwardly short of the sides where tags (13) are cut out of the sides of the inner layer and the outer layer overlaps the inner layer at the carton ends. Top and bottom closures are adhesively secured to the outer layer at the ends of the carton.
摘要:
Apparatus and method for forming a three-piece paperboard, bulk shipping container from a flat collapsed tubular body member and a pair of flat end members, which apparatus and method includes means for erecting the body member from the flat collapsed to the tubular erected condition, pushing both end members against opposite ends of the erected body member at the same time, and then folding and securing the flanges of the end members to opposite ends of the body member.
摘要:
An apparatus for inserting an internal lid (6, 7) in a tubular formed container (1) and for sealed connections of the lid to the inner of the container tube by constant heat welding, high frequency welding or ultrasonic welding and comprising a carrier (8) for holding the container tube (1) while introducing and weld connection the lid (6, 7), a support provided above the carrier (8) for positioning a plane punched out lid blank having a larger outer periphery than the inner periphery of the container tube, a piston means (16) pressing the lid blank into the container tube while folding a narrow edge rim (7) upwards from the lid plane (6) and in which the piston means comprises a lower piston part (18) and an upper piston part (20) which are axially movable in relation to each other and an expandable means (19) between said two piston parts (18, 20) which expandable means is pressed radially outwards when the two piston parts (18, 20) are compressed. The bottom of the lower piston part (18) is formed with a thin press edge (21) having an outwards-downwards sloping surface (24) which at the inner part thereof is directly succeeded by a flute (22). The upper piston part (20) which at the bottom is cup-shaped (25) is axially movable on the lower piston part (18) into and from contact with the expandable means (19). The expandable means preferably is a rubber ring (23) the form of which is changed when the upper piston part and the lower piston part are compressed, whereby the rubber ring is formed with a radially outwards directed pressure line (26) engaging the fold up lid rim (7) adjacent the very lid plane (6). The carrier (8) and the press piston (16) has substantially parallel cylindrical sides, whereby the weld pressure practically solely is provided by the expandable means (19) within area of the means (10) of the carrier for providing welding heat.
摘要:
An apparatus for flanging the upper and lower ends of a continuous stream of fiberboard cans includes a central rotating turret with a pair of flanges which rotate with the turret and are oriented to grasp each can in its top and bottom opening and press it against a pair of stationary curvilinear rails to spin the can as the rails flange the upper and lower ends of the can. An inlet turret and outlet turret sequentially space the cans and feed them into the rotating turret and flanges.
摘要:
When a packaging container is formed by sealing an area of sheet material to the edge of another area of sheet material, the L-joint or T-joint so formed is sometimes liable to rupture when subjected to blows or strain. According to this invention that danger is reduced or eliminated by moulding a zone (4) of an end closure panel (3) abutting on the container wall edge to which it is jointed so that it forms a flange resting against and bonded to the face of said wall (1). The flange may be provided with a lip (6) projecting from a short length of the edge of said closure panel.
摘要:
A container includes a cardboard portion and a portion of synthetic material. The cardboard portion includes a first part having a unitary rim and first wall panels integrally connected to the rim and a second part having a bottom panel and second wall panels. The first and second wall panels are juxtaposed in alternating pattern to form a continuous wall.