The invention relates to a method for manufacturing a tubular body (2) for a packaging in tube form (1), comprising the following steps: ) definition of the geometrical characteristics of the tubular body (2) to be produced; ) creation of an initial image (6) covering the surface of the tubular body (2) to be produced, said initial image (6) having a right lateral edge and a left lateral edge; ) creation of an intermediate image (8) from the initial image (6) by adding a lateral strip (13) to one of said edges of the initial image (6), said lateral strip (13) comprising a copy of the other of said edges of the initial image (6); ) printing of at least one intermediate image (8) on a sheet, the intermediate image (8) being disposed such that the lateral edges of the image are parallel to the direction of unwinding of the sheet; ) cutting of a small strip on each lateral side of the intermediate image (8) to form a final image (10); ) shaping of the sheet as tubular body (2) and edge-to-edge assembly to obtain a continuity of the design between the right edge and the left edge of the image.

Apparatus and methods for producing folded edges in a film in-process, and compositions of such film are provided. A method of folding edges includes: separating a first idler roll and a second idler roll by a first distance; positioning a plurality of folding guides between the first idler roll and the second idler roll; separating adjacent sections of film having a majority layer comprising a Ziegler Natta catalyzed linear low density polyethylene copolymer resin having molecules that inherently lack long chain branching, wherein a majority of said molecules are oriented in a substantially longitudinal direction due to an induced strain, and inducing two folds with each folding guide, thereby causing an edge of each section of film to turn under 180 and cling to a bottom surface of the section of film; and moving the adjacent sections of film from the folding guides to the second idler roll.

An automatic machine for providing corrugated sheet-like elements having a component for the continuous corrugation of a ribbon in motion in a longitudinal direction. The corrugation component includes an upper conveyor and a lower conveyor. The upper conveyor includes a plurality of upper abutment elements that are extended substantially transversely to the longitudinal direction of motion of the ribbon. The lower conveyor includes a plurality of lower abutment elements that are extended substantially transversely to the longitudinal direction of motion of the ribbon. The upper abutment elements are intercalated between the lower abutment elements in a work area. The upper abutment elements each comprise include a flap, which has, in the end adapted to make contact with the ribbon, at least one portion that has a grip component.

A system and method of constructing a 4D-printed ceramic object includes extruding inks including particles and polymeric ceramic precursors through a nozzle to deposit the inks on a heating plate, whereby a 3D-printed elastomeric object is formed on the heating plate, folding the 3D-printed elastomeric object into a complex structure to form a 4D-printed pre-strained elastomeric object, and converting the 4D-printed elastomeric object into the 4D-printed ceramic object.

A fibrous preform for manufacturing an annular housing made of composite material for a turbine engine includes at least one layer that has a fibrous texture, has a three-dimensional or multilayer weave, and extends about a longitudinal axis. At least one mat includes a thermoplastic material filled with carbon nanotubes and extending about the axis. At least one multiaxial fibrous sheet extends about the axis. The at least one mat is inserted between the fibrous sheet and the at least one layer having a fibrous texture.

A method of forming a flexible glass-polymer laminate structure includes heating a polymer layer to an elevated temperature of greater than 20 C. and below a working temperature of a flexible glass substrate adjacent the polymer layer. The flexible glass substrate has a thickness of no more than about 0.3 mm. The flexible glass substrate is shaped with the polymer layer at the elevated temperature. The polymer layer is cooled below the elevated temperature such that the flexible glass-polymer laminate structure maintains a non-planar formation.

The present invention provides constructs including a tubular biodegradable polyglycolic acid scaffold, wherein the scaffold may be coated with extracellular matrix proteins and substantially acellular. The constructs can be utilized as an arteriovenous graft, a coronary graft, a peripheral artery bypass conduit, or a urinary conduit. The present invention also provides methods of producing such constructs.

A tank manufacturing method includes the steps of (a) forming a reinforcing layer before hardening, (b) embedding at least a part of a label into the reinforcing layer before hardening, and (c) winding glass fiber with thermosetting resin before hardening impregnated so as to cover the label to form a surface layer before hardening. The step (a) includes (a1) forming an inner layer before hardening, and (a2) forming an outer layer before hardening having a cover rate lower than the inner layer before hardening and lower than 100%, the outer layer before hardening being arranged on the inner layer before hardening.

An apparatus for producing a web of fibrous material includes a roll having incisions with a depth of 0.01-2.00 mm, a width of 0.01-2.00 mm, and a pitch 0.01-10.00 mm, and rotated at a peripheral velocity v.sub.1 equal to the velocity of an upstream apparatus unit; a belt stretched between transmission rollers that advances at a velocity v.sub.2 less than v.sub.1, wherein v.sub.1/v.sub.2 lies between 1.05 and 1.40; a presser roller rotating at a peripheral velocity v.sub.2, associated with a presser system acting to press the belt against the metal roll with a pressure of 1-200 kg per centimeter; and a system that feeds a sheet of pliable fibrous material between the belt and the roll, the belt having a longitudinal elongation of no more than 5%, dimensional stability along its entire length, a thickness of 1-10 cm, and a hardness 24-70 Shore.

Provided is a golf club shaft having a lightweight property and exhibiting impact-absorption characteristics to suppress vibration at an impact of a golf ball. A golf club shaft, including a shaft body extending in a longitudinal direction, wherein the shaft body is composed of a composite material which has: a first member containing a fiber reinforced plastic; and a second member containing a rubber material and formed to be in direct contact with the first member within at least a part of a region on the first member, and in which the first member and the second member are integrated.