Abstract: A film tube has a substrate having opposed side edges. A first surface of the film is subjected to corona electrical discharge treatment. The first surface of the film is provided thereon with a printing ink layer. A first edge region along one of the opposed side edges of the first surface of the film is provided with an adhesive layer. A second edge region along an opposed side edge of a second surface of the film is activated by the corona electrical discharge treatment. The first edge region and the second edge region are overlapped and bonded with one another through the adhesive layer. A method for making the film tube is also provided.

Abstract: An apparatus for opening flatly folded tubes of synthetic resin or the like material and fitting same on containers or the like objects. Operation of fitting opened tubes on the objects can be performed without requiring any complicated movement of the objects. Each opened tube and each object are transported in same direction and, in the course of this transport, either the tube or the object is moved gradually toward the other so that the one is fitted on or inserted into the other.

Abstract: A method of manufacturing a labeled container of synthetic resin having a label affixed to its outer periphery. A heat-stretchable tubular label is inserted into a forming die, and a thermoplastic resin sheet which has been heated and softened is positioned within a space defined by the label. When the resin sheet is expanded radially of the tubular label, the resin sheet is expanded radially under heat simultaneously with the resin sheet, so that both the resin and the label are formed into a shape conforming to the internal surface configuration of the forming die.

Abstract: A folded tube is paid out downward through the rotation of opposing feed rollers, and fitted on a mandrel member. The tube is then fitted on the mandrel and cut to a predetermined length by a cutting device disposed between the feed rollers and the mandrel. Subsequently the tube cut to the predetermined length is drawn downward along the mandrel by the rotating members and the tube is unfolded. Finally, the sufficient unfolded tube is dropped down from the mandrel and fitted on a cap portion of a bottle or container to be sealed.

Abstract: A film supply apparatus is described which is to be disposed alongside a container transport line and adapted to supply a film strip to be affixed to the lateral side of each container fed along said transport line. The apparatus includes at least one film suction element having an arcuate suction surface adapted to hold the film strip in position under suction. The film suction element successively transfers a film strip to each container the result of a composite motion consisting of its motion toward and away from the container and the rotary motion thereof in the circumferential direction of its arcuate suction surface.

Abstract: A film wrapping machine for wrapping a film around a container comprising a rotary turntable assembly for transporting containers from one station to another. The machine includes a film supply unit for supplying each film onto a respective container carried by the turntable assembly, and a plurality of film retaining members one for each container carried by the turntable assembly. During the rotation of the turntable assembly, the film retaining meers are successively lifted to a raised position and are then rotated around the respective containers for turning the films therearound. Each film retaining member has suction openings defined therein in at least two rows, one row of the suction openings being adapted to suck one end of the respective film and the other row of the suction openings adapted to such a portion of the respective film adjacent the other end thereof. Rotation of the film retaining member results in the turning of the respective film around the associated container to form the film tube.

Abstract: A method of manufacturing containers covered tightly with a protective sheet with a porous resin film layer or rubber film layer in-between.By the method of this invention, a resin solution or rubber solution is foamed mechanically in advance and the foamed layer made by the foamed resin film or the foamed rubber film then is covered with a heat shrinkable sheet which is heat shrunk tightly to the containers. The foamed layer does not shrink during the heating. Accordingly, the surface of the heat shrinkable sheet is free from waviness due to gas foaming of the covered layer during heat shrinking which has been the case with conventional methods. The method, therefore, does not affect the appearance or printing performance of the surface of the heat shrinkable sheet.

Abstract: A cylindrical film tube is to be fitted over an object. Initially the tube is in a flattened state with its opposite sides touching one another. First two vacuum suckers are contacted to the collapsed tube, one on each of its sides, so as to oppose one another. Vacuum is supplied to these suckers so that they suck and grip the tube. Then they are moved relative to one another in a direction parallel to the surfaces of the tube which they are gripping, so as to shear these surfaces relative to one another and break their contact with one another, in case they are adhering together. Then the suckers are moved apart from one another in the direction perpendicular to the film surfaces which they grip, so as to open up the tube. Lastly, the opened-up tube is fitted over the object. In a preferred embodiment, the shear direction is perpendicular to the generators of the flattened tube. A machine is also disclosed for performing this process repeatedly.

Abstract: A method for forming a closed end on a tube of heat-shrinkable film wherein the tube is placed over a cylindrical mold with one end of the tube extending beyond top end of the mold, includes forming a pattern of grooves in the mold's top end, and then heating the tube so that it shrinks and tightly contacts and covers the grooved end of the mold. Excess film protruding from the end of the tube which has shrunk against the grooved end of the mold is cut off or folded down and then this end of the tube is pressed with a heated smooth plate against the grooved end of the mold. Excess film material remaining on this end portion of the tube is squeezed into the grooves, whereby the end of the film tube is formed with a uniform thickness and with low thermal stresses thereby reducing any tendency for distortion of the closed end and providing a surface that can be more easily printed on.

Abstract: A machine for fitting a sleeve seal of a flat form over a container, wherein a pair of half-mandrels are mounted on a rotating member so as to be movable apart and together. A pair of suction cups grip the sleeve seal and move apart so as to somewhat open it; then the suction cups move, together, towards the axis of the rotating member so as to put the sleeve seal over the half-mandrels, which are together; then the rotating member rotates and the half-mandrels move apart to open up the sleeve seal; and then the half-mandrels are aligned over the container, and a pushing means pushes off the sleeve seal from the half-mandrels.

Abstract: A method and machine for fitting a sleeve seal of a collapsed form over a container, wherein the sleeve seal supplied is opened halfway by suction cups disposed to a base plate, and then are opened fully by separating the distance between opening members inserted therein, which are mounted movably up and down to the base plate, until the sleeve seal is somewhat tensioned, wherein the sleeve seal is formed in the cylindrical form just above a container to be fitted by closing the distance between the opening members while the sleeve seal is held by the suction cups, wherein the container is inserted into the sleeve seal opened by a lift supporting the container, wherein the opening members are pulled out of the sleeve seal, and wherein the container fitted in the sleeve seal is transferred to a next step.

Abstract: A cap seal fitting machine for a container, wherein a cap seal of a film piece is punched from a film sheet by a punching means and is held onto one of molds which are radially arranged in the periphery of a rotary disc plate which is intermittently turned around its axis, wherein the cap seal held on the mold is molded into a desired shape by a molding means, and wherein the cap seal molded is transferred from the mold to the top of the container for fitting thereon by a transfer means. The punching means, the molding means, and the transfer means are operated while the rotary disc plate is stopped.

Abstract: A method and apparatus are disclosed for wrapping an object in a sheet. A retainer formed with a slot is moved along a work path. A piece of sheet is supplied across the opening of the slot; then the object is inserted into the slot and pushes the sheet to the back of the slot against the retainer, with the edges of the sheet sticking out between the object and the edges of the slot, with part of the surface of the object being free; then a pressure plate is placed adjacent to the free surface, the outward facing surface of this plate being smooth; then first one, and then the other, protruding edge of the sheet is wrapped round the object and over the pressure plate by an embracing arm, so that the edges of the sheet overlap; then these edges are joined by a joiner bearing against the smooth part of the pressure plate; and then the wrapped object is discharged from the retainer.

Abstract: A package including a container protector which is made of an elastic film tube, the circumference of which is smaller than that of the part of a container over which it is fitted. A method and machine for fitting the protector are also described.