Abstract: Method of grouping a plurality of objects to be handled includes positioning the objects on a support surface and wrapping the objects and support surface with a tape of non-creped paper material. The tape having an extensibility of at least 6% in the longitudinal direction and 6% in the transverse direction and is maintained before or during the winding of the tape in a state of tension which causes it to extend to a lesser extent than its maximum extensibility.

Abstract: The invention relates to a process for realizing a re-closable container made of extensible paper, which comprises at least partly inserting a closing element (5) made of paper material (extensible paper) provided with a base wall (6) and a lateral wall (7), internally of a housing compartment (4) of the container. The lateral wall (7) of the closing element (5) is inserted and located at a portion of lateral wall of the container (1). A sealing layer (204) is coupled to the container in a position underlying the closing element (5). Also comprised is a contemporary deforming step of the lateral wall (7), the sealing layer (204) and the portion of wall of the container (1), such as to realize coupling/decoupling surfaces between the closing element (5) and the container (1).

Abstract: A method for modifying the physical and/or chemical characteristics of a web of paper material includes the steps of causing a web of paper material, having a dry content between 1% and 90%, to adhere to an endless conveyor belt of elastic material, subjecting the conveyor belt and the web to at least one localized dimensional variation, and introducing at least one additive between the fibers of the web while adhering to the belt before or during the localized dimensional variation.

Abstract: A multilayer papery material container includes at least one first sheet of a three-dimensional structure and at least one second sheet fixed to the first sheet and defining empty spaces therewith, wherein at least the second sheet is made of a papery material having a degree of extensibility of not less than 5% in all directions, and wherein the container includes a lateral wall provided with a relief motif.

Abstract: A process for realizing a container from a foldable sheet comprises stages of at least partially inserting a closure element made of paper material (extensible paper) provided with a base wall and a lateral wall internally of a housing chamber of the container. The lateral wall of the closure element is inserted and located at a portion of the wall of the container. Also comprised is a stage of contemporary deformation of the lateral wall of the closure element and the portion of wall of the container in order to realize corresponding grooves on the parts, destined to define coupling and decoupling surfaces by rotation between the closure element and the container. The use of extensible paper advantageously enables easy realization of the coupling grooves by rotation.

Abstract: A method for forming a web of transversely extensible fibrous material includes the steps of subjecting a fluid-permeable endless conveyor belt of elastic material, of thickness increasing from its longitudinal axis to its edges, to a localized transverse stretching operation, achieved by temporarily withdrawing a longitudinal band thereof from the surface on which it naturally slides and maintaining it in contact, in this stretched condition, with at least a part of the surface of a support member; depositing a web of pliable fibrous material having a liquid content between 3% and 70% by weight against that portion of the conveyor belt of elastic material which has been transversely stretched; and with vacuum, maintaining the web of pliable fibrous material adhering to the conveyor belt of elastic material during its return to its original configuration, to cause the transverse contraction of the web and the simultaneous partial removal of liquid therefrom.

Abstract: The invention relates to a process for realising a re-closable container made of extensible paper, which comprises at least partly inserting a closing element (5) made of paper material (extensible paper) provided with a base wall (6) and a lateral wall (7), internally of a housing compartment (4) of the container. The lateral wall (7) of the closing element (5) is inserted and located at a portion of lateral wall of the container (1). A sealing layer (204) is coupled to the container in a position underlying the closing element (5). Also comprised is a contemporary deforming step of the lateral wall (7), the sealing layer (204) and the portion of wall of the container (1), such as to realise coupling/decoupling surfaces between the closing element (5) and the container (1).

Abstract: A multilayer papery material comprising at least one first sheet of three-dimensional structure and at least one second sheet fixedly coupled to the first sheet and defining empty spaces therein, wherein at least said second sheet is made of a papery material having a degree of extensibility of not less than 5% in all directions.

Abstract: A method for forming a web of transversely extensible fibrous material includes the steps of subjecting a fluid-permeable endless conveyor belt of elastic material, of thickness increasing from its longitudinal axis to its edges, to a localized transverse stretching operation, achieved by temporarily withdrawing a longitudinal band thereof from the surface on which it naturally slides and maintaining it in contact, in this stretched condition, with at least a part of the surface of a support member; depositing a web of pliable fibrous material having a liquid content between 3% and 70% by weight against that portion of the conveyor belt of elastic material which has been transversely stretched; and with vacuum, maintaining the web of pliable fibrous material adhering to the conveyor belt of elastic material during its return to its original configuration, to cause the transverse contraction of the web and the simultaneous partial removal of liquid therefrom.

Abstract: A method for producing webs of transversely extensible fibrous material, in particular paper, characterised by causing a web (12) of pliable fibrous material having a water content between 20% and 80% to adhere to at least one continuous elastic band elastic (6, 26, 31, 46, 66) adhering to the lateral surface of a first rotating roller, provided on its lateral surface with at least one circumferential cavity and to temporarily and locally pre-stretched said band by making it to enter into said at least one cavity for interference from at least one second rotating roller having its axis parallel to the axis of the first roller.

Abstract: A multilayer papery material container includes at least one first sheet of a three-dimensional structure and at least one second sheet fixed to the first sheet and defining empty spaces therewith, wherein at least the second sheet is made of a papery material having a degree of extensibility of not less than 5% in all directions, and wherein the container includes a lateral wall provided with a relief motif.

Abstract: A process for realising a container from a foldable sheet comprises stages of at least partially insering a closure element (5) made of paper material (extensible paper) provided with a base wall (6) and a lateral wall (7) internally of a housing chamber (4) of the container. The lateral wall (7) of the closure element (5) is inserted and located at a portion (3a) of the wall (3) of the container (1). Also comprised is a stage of contemporary deformation of the lateral wall (7) of the closure element (5) and the portion (3a) of wall of the container (1) in order to realise corresponding grooves (9, 10) on the parts, destined to define coupling and decoupling surfaces by rotation between the closure element (5) and the container (1). The use of extensible paper advantageously enables easy realisation of the coupling grooves by rotation.

Abstract: A method has been conceived for the manufacture of containers in paper material for foodstuffs such as drinks, in particular hot drinks, comprising a bottom wall (2) and a lateral wall (3) arising from the bottom wall (2) and forming in cooperation with the latter a cavity (4) for containing the product; means (5) are also provided to allow the hand of a user to be thermally insulated with respect to the product contained in the cavity (4). The method comprises a step of turning the lateral wall (3) back outwards and downwards so that the material constituting the upper portion of the lateral wall of the preliminary container comes step by step to constitute the external strip (6).

Abstract: A method for producing webs of transversely extensible fibrous material, in particular paper, characterised by causing a web (12) of pliable fibrous material having a water content between 20% and 80% to adhere to at least one continuous elastic band elastic (6, 26, 31, 46, 66) adhering to the lateral surface of a first rotating roller, provided on its lateral surface with at least one circumferential cavity and to temporarily and locally pre-stretched said band by making it to enter into said at least one cavity for interference from at least one second rotating roller having its axis parallel to the axis of the first roller.

Abstract: The paper web is passed on the production line between at least one pair of rollers, of which one is of soft material driven at greater speed, the hard material roller presenting a base roughness RA of less than 5 and along its entire lateral surface having incisions that are precisely spaced.

Abstract: A multilayer papery material comprising at least one first sheet of three-dimensional structure and at least one second sheet fixedly coupled to the first sheet and defining empty spaces therein, wherein at least said second sheet is made of a papery material having a degree of extensibility of not less than 5% in all directions.

Abstract: The paper web is passed on the production line between at least one pair of rollers, of which one is of soft material driven at greater speed, the hard material roller presenting a base roughness RA of less than 5 and along its entire lateral surface having incisions that are precisely spaced.

Abstract: Method for manufacturing a tube-shaped package having longitudinal sides and a bottom and made of flexible material, wherein the longitudinal sides of the package are sealed prior to forming the bottom and the bottom is formed by pushing an annular portion of the flexible material inward in a U-shaped arrangement at at least on closed end of the tube-shaped package.

Abstract: A container made of flexible material with an inherently stable base and a method for manufacturing the container, the container being obtained in the shape of a pouch which has, in the region that will form the base, heat-sealed lateral regions and optionally ribbed guides which, by virtue of the very weight of the material that is introduced or by way of a punch, produce a base which makes the final container inherently stable.

Abstract: A method for producing a plastic film having improved characteristics, which consists in nebulizing on the faces, in the region downstream of the extruder, at least one “active substance” or a mixture of “active substances”, utilizing the various states of aggregation of the product generated by the temperature distribution. These substances modify the structure of the film, in particular its surface structure, by bonding and penetrating to a depth which is a function of the temperature, of the material of the film and of the type of substance used.