Abstract: Infusion packets have envelopes of heat-sealable material with a looped thread within the packets to wring moisture from the packet in use. A central part of the thread loop is held in a widened region of one edge seal while the ends of the loop project through the opposite edge seal in which they are movable when the loop is to be contracted. The packets are produced by forming a continuous series of thread loops on one elongate web and placing doses of infusion material on a second elongate web before bringing the webs together with the thread loops and infusion material between them. The two webs are then welded together and the individual packets are separated from the joined webs.

Abstract: A container, such as a cardboard carton, has a carrying handle secured by a fixing element at an attachment zone adjacent each end of the handle to opposite side walls of the container. The fixing elements each have a shaft portion transverse to the plane of respective attachment zones extending through the container wall, the shaft portion having a barb extending outwardly on the shaft and engaging with the container to retain the fixing element in position. The handle is attached to the container side wails by forcing the fixing elements through the side walls at the respective attachment zones.

Abstract: Packaging material, particularly for forming blanks for hinged lid packets, is delivered to a packaging machine in web form and at least one creasing or shaping operation is performed (44; 112) on the web (2) prior to severing individual blanks (50) from the web. Folding or wrapping of a blank around an article to be packed in the machine is monitored and the creasing or shaping operation varied to optimise machine performance: for example, an adjustable creasing tool can be adjusted to compensate for tool wear. Individual blanks are inspected for longitudinal curl, usually caused by the web having been wound on a reel, and where necessary a correction is applied during feeding of the web, e.g. by adjusting the angle of wrap of the web around a decurling roller (38; 108).

Abstract: Method and apparatus for manufacturing corrugated board comprising two layers of corrugated medium joined together in tip-to-tip registration of the two mediums, without an intermediate liner, and with at least one outer liner. Adhesive is applied to the tips of the two mediums, and the tips are brought together and held in contact with each other while the adhesive sets at least partially during conveyance of the mediums along a linear path.

Abstract: A process and apparatus for annealing biaxially oriented articles is disclosed, particularly blow molded articles prepared from unique tapered preforms which are immediately annealed using warm fluid in a segmented mold. Portions of the segment mold, used to form the articles, are temperature controlled at various temperatures by passing warm water through conduits in the neck-shoulder portion and body portion of the mold segment and cold water through the bottom and shoulder portion of the mold to bring the temperature of the article wall to about 65.degree. C. to 85.degree. C. for PET bottles. The body wall temperature is preferably lowered to about 80.degree. C. while the necks-shoulder and bottom and shoulder portions are lowered to at least 70.degree. C. The annealing increases the articles structural strength, removes temperature and biaxial stress, reduces gas permeability, retains transparency and allows for multiple reuse of the article including hot washing thereof.

Abstract: An apparatus for annealing biaxially oriented articles is disclosed, particularly blow molded articles prepared from unique tapered preforms which are immediately annealed using warm fluid in a segmented mold. Portions of the segment mold, used to form the articles, are temperature controlled at various temperatures by passing warm water through conduits in the neck-shoulder portion and body portion of the mold segment and cold water through the bottom and shoulder portion of the mold to bring the temperature of the article wall to about 65.degree. C. to 85.degree. C. for PET bottles. The body wall temperature is preferably lowered to about 80.degree. C. while the neck-shoulder and bottom and shoulder portions are lowered to at least 70.degree. C. The annealing increases the articles structural strength, removes temperature and biaxial stress, reduces gas permeability, retains transparency and allows for multiple reuse of the article including hot washing thereof.

Abstract: A process and apparatus for annealing biaxially oriented articles is disclosed, particularly blow molded articles prepared from unique tapered preforms which are immediately annealed using warm fluid in a segmented mold. Portions of the segment mold, used to form the articles, are temperature controlled at various temperatures by passing warm water through conduits in the neck-shoulder portion and body portion of the mold segment and cold water through the bottom and shoulder portion of the mold to bring the temperature of the article wall to about 65.degree. C. to 85.degree. C. for PET bottles. The body wall temperature is preferably lowered to about 80.degree. C. while the neck-shoulder and bottom and shoulder portions are lowered to at least 70.degree. C. The annealing increases the articles structural strength, removes temperature and biaxial stress, reduces gas permeability, retains transparency and allows for multiple reuse of the article including hot washing thereof.

Abstract: An apparatus for annealing and heat treating biaxially oriented articles is disclosed, particularly blow molded articles prepared from preforms which are simultaneously annealed using warm fluid in a first segmented mold. The blown article is transferred to a second, larger mold where the article is pressurized against the mold to form the final container design and to heat treat at least a portion of the bottle wall to improve crystallinity and strength. Portions of the mold, used to form and anneal the articles, are temperature controlled at various temperatures by passing warm water through conduits in the neck-shoulder portion and body portion of the mold and cold water through the bottom and shoulder portion of the mold to bring the temperature of the article wall to about 65.degree. C. to 95.degree. C. for PET bottles. The second mold is up to 10% larger in volume and preferably employs resistance heating to heat treat the side wall to 110.degree. C. to 220.degree. C.

Abstract: A process and apparatus for annealing and heat treating biaxially oriented articles is disclosed, particularly blow molded articles prepared from preforms which are simultaneously annealed using warm fluid in a first segmented mold. The blown article is transferred to a second, larger mold where the article is pressurized against the mold to form the final container design and to heat treat at least a portion of the bottle wall to improve crystallinity and strength. Portions of the mold, used to form and anneal the articles, are temperature controlled at various temperatures by passing warm water through conduits in the neck-shoulder portion and body portion of the mold and cold water through the bottom and shoulder portion of the mold to bring the temperature of the article wall to about 65.degree. C. to 95.degree. C. for PET bottles. The second mold is up to 10% larger in volume and preferably employs resistance heating to heat treat the side wall to 110.degree. C. to 220.degree. C.

Abstract: A treatment container for washing and rinsing materials includes a body with open top and a screen or mesh in proximity of the top of the body for allowing drainage of excess cleansing liquid and washed-off substances during cleansing of the material while retaining the material within the interior of the container. For complete removal of water and washed-off substances from the container after terminating washing of the material, the container may be closed by a lid and turned upside down to thereby permit the cleansing liquid to drain through the mesh which, at inverted position of the container, extends at the bottom of the body.