This method for manufacturing a composite preform (70) includes: preparing a preform (10a) that is formed from a plastic material; preparing a tubular heat shrinkable plastic member (40a) that is longer than the preform (10a) and has a margin (80a) for thermocompression bonding at one end; inserting the preform (10a) into the plastic member (40a); having the plastic member (40a) undergo thermal shrinkage by heating the preform (10a) and the plastic member (40a); and bonding the margin (80a) of the plastic member by thermocompression.

A multi-shot moulding part structure includes a first structural part, an ink decoration layer, and a second structural part. The first structural part has a first area surface, a second area surface, and a joining surface located on the second area surface. The joining surface is non-parallel to the second area surface. The ink decoration layer is spread on the first area surface and the second area surface, but not on the joining surface. The second structural part is combined with the first structural part and covers the second area surface. The second structural part touches the joining surface. By the second structural part touching the joining surface of the first structural part that is not coated with the ink decoration layer, the structural bonding strength between the first structural part and the second structural part is enhanced.

A preform configured to form a carbonated beverage container. The preform includes a finish defining an opening. A body portion of the preform extends from the finish. A bottom portion of the preform is at an end of the preform opposite to the finish. A longitudinal axis of the preform extends through an axial center of the bottom portion. A base layer is included with the body portion and the bottom portion. The base layer has an inner portion with an inner surface at a carbonated product side of the preform. An outer portion of the base layer has an outer surface at an outer bottle side of the preform. A passive CO2 barrier layer is between the inner portion and the outer portion of the base layer. The passive CO2 barrier layer extends along the body portion to the bottom portion, and across the bottom portion. The passive CO2 barrier layer is arranged closer to the inner surface than the outer surface to increase the shelf-life of carbonated products.

Disclosed herein, amongst other things, is a molded article, such as a preform that is blow moldable to form a container, and a related method of forming and recycling a container. The structure and steps includes injection molding a molded article having tubular body.

In various aspects, the present disclosure provides a structural component. The structural component includes a body defining at least one hollow region. The body includes a carbon fiber composite including a plurality of substantially aligned continuous carbon fibers. The plurality of substantially aligned carbon fibers defines a major axis and a second axis perpendicular to the major axis. The plurality of substantially aligned continuous carbon fibers includes a plurality of discrete termination points staggered with respect to the second axis. Methods of making such structural components, including by blow molding and compression molding are also provided.

The invention is an integral two-layer preform (1) for the production of integrally blow-moulded bag-in-containers (2). The preform has an inner layer (11) and an outer layer (12), wherein the preform forms a two layer container upon blow-moulding, and wherein the thus obtained inner layer of the container releases from the thus obtained outer layer upon introduction of a gas at a point of interface of the two layers. The melting temperature of the inner layer is greater than or equal to the melting temperature of the outer layer.

Discloses is a method for manufacturing a dual cosmetic container. The method includes: molding an inner preform 40 or 40a formed with a patterned portion having one or more shapes selected from characters, pictures, figures, and helical grooves on the outer surface thereof using an upper mold 10 for the inner preform having a molding space 11 and formed with a pattern molding portion 12a on the inner circumferential surface thereof and an lower mold 14 for the inner preform having a molding space 15 for a discharge portion; inserting the inner preform 40 or 40a into a molding space 21 of an upper mold 20 for an outer preform, fixing a discharge portion 41 of the inner preform 40 or 40a to a lower mold 23 for the outer preform, feeding a liquid raw material into the molding space 21 of the upper mold 20 for the outer preform, and molding the outer preform 50 in close contact with the outer surface of the inner preform 40 or 40a formed with the patterned portion 42; and simultaneously heating the inner preform 40 or 40a and the outer preform 50 molded in close contact with each other, inserting the two heated preforms into a molding space 31 of a blow mold 30, inserting a blow tube 32 into the discharge portion 41 of the inner preform 40 or 40a, and simultaneously expanding the inner preform 40 or 40a and the outer preform 50 by blow molding to manufacture the desired dual cosmetic container in which an inner container 100 or 100a and an outer container 200 are in close contact with each other.

A plural preform assembly having nested preforms. The preforms are held together by an interference fit. The interference fit is provided by the friction between the preforms which occurs when the inner preform is inserted into the outer preform. At least one preform may have ribs extending radially towards the other preform. The ribs provided concentricity and interference to hold the preforms together during subsequent operations. The preforms may later be blow molded to provide a bag in bottle or similar container.

A method for manufacturing a food and/or beverage packaging container is provided. The method includes injection molding a preform using a two phase injection system. A first phase of the two phase injection system includes injecting a first material into the preform and a second phase of the two phase injection system includes injecting a second material into the preform. The method further includes disposing the preform in a mold, blow molding the preform into an intermediate article having a length, a diameter and side walls having a wall thickness, and trimming the intermediate article to form a finished container having a wide mouth neck. Systems and finished products are disclosed.

A biaxially stretched, blow molded container obtained by molding a laminated test tube shaped preform molded by an injection molding process. The container has a neck, a body, and a bottom, and having an outer shell and an inner bag to be laminated in a peelable manner with an outer layer inner surface. The inner bag can be deflated under a pressure drop therein. The outer layer and an inner layer have a laminar structure in which the lamination extends from a predetermined position of the neck to a lower end face. The layers are peeled from each other, starting from a lamination interface between the layers. This interface is exposed outside at the lower end face of the gate mark and can be used as an air intake vent that enables outside air to be taken into the space between layers.