A container formed of a common one-piece thermoplastic substrate. The container has an overlapping seam having an overlap magnitude. At a location that is five times the overlap magnitude away from the overlapping seam, the container wall has a container wall Opacity less than about 50%. At a corresponding position along the overlapping sea, the overlapping seam has a seam Opacity that is less than 200% of the container wall Opacity.

The present invention relates to a process for producing a polymer film (P) comprising a polyamide composition (PC) by extruding the polyamide composition (PC) through an annular die and then stretching the tube thus obtained by blowing in air. The present invention further relates to the polymer film (P) obtainable by the process of the invention and to a process for packaging foodstuffs with the polymer film (P).

Method for making blow molded articles having a predetermined feature incorporated into the wall provided by variations in the thickness of the wall of the article corresponding to a predetermined pattern etched into the preform from which the article was formed.

The invention relates to a tube head (1, 2) intended to form a packaging, the head (3, 6) being intended to be welded to a tubular skirt (8, 9) in order to form the said packaging, and the tube head (1 2) being thermoformed from a sheet (20, 21). The invention also relates to a method for manufacturing such a tube head (1, 2) and a tube with said head (3, 6).

A composite preform including a preform and a plastic member in close contact with the outer surface of the preform is made by preparing the preform made of plastic material and arranging the plastic member to surround the outer surface of the preform. Subsequently, the composite preform is heated and inserted in a blow molding die and undergoes blow molding in the blow molding die, by which the preform and the plastic member of the composite preform are inflated integrally and a composite container is obtained.

A plural preform assembly having nested preforms with an inner preform and an outer preform. The preforms are sealably joined together, defining a volume between the preforms. Propellant is disposed in the volume between the preforms. The preforms are later blow molded to provide a bag in bottle, bottle in bottle or similar container. The propellant charge is already present when blow molded, preventing the need for a later propellant filling step.

A synthetic resin-made container is a synthetic resin-made container that has an outer layer body and an inner layer body separably laminated on an inner surface of the outer layer body and is formed by stretch blow molding, and includes: a tubular mouth portion; a barrel portion connected to and located below the mouth portion; and a bottom portion closing a lower end of the barrel portion, wherein the outer layer body contains polyethylene terephthalate, the inner layer body contains polyethylene terephthalate, a laminate containing polyethylene terephthalate, or a blend containing polyethylene terephthalate, and has a vapor-deposited film having a gas barrier property on an inner surface thereof, and a rib that prevents the inner layer body from peeling away from the outer layer body when forming the vapor-deposited film is formed in at least one of a lower part of the barrel portion and the bottom portion.

To provide a composite preform that can ensure that worsening of the appearance of a surface of a plastic member caused by near-infrared heating prior to blow molding is effectively prevented and that an inner preform is efficiently heated. The composite preform of the present invention includes a preform and a heat-contractive plastic member, the preform including a mouth part; a trunk part linked to the mouth part; and a bottom part linked to the trunk part, and the heat-contractive plastic member being disposed so as to surround the outside of the preform and including at least a colored layer that contains a resin material and a colorant, wherein the heat-contractive plastic member has a near-infrared transmittance of 50% or higher.

A composite container is provided including a container body made of a plastic material and a plastic member disposed on the outer surface of the container body. The container body and the plastic member are integrally inflated by blow molding, and the plastic member includes a colored layer and/or a print layer where a print is made.

A preform for a container has a hollow cylindrical main body having a first thickness, a hollow cylindrical thick portion having a second thickness greater than the first thickness, and a curved end portion. Inner surfaces of the main body, the thick portion, and the end portion form a cavity.