摘要:
Die Erfindung betrifft ein Verfahren sowie eine Vorrichtung (25, 48, 63) zur Herstellung eines Bewehrungsgitters (45). Dabei wird zunächst ein Verstärkungsfaserstrang (29) mit einem Harz (H) getränkt und zu einem ausgehärteten, faserverstärkten Strangmaterial (38) ausgehärtet. Anschließend wird das als Endlosmaterial vorliegende Strangmaterial (38) zu Stäben (26) abgelängt, die dann als Längsstäbe (46) oder Querstäbe (47) zur Bildung des Bewehrungsgitters (45) verwendet werden. An jeder Kreuzungsstelle (64) zwischen einem Längsstab (46) und einem Querstab (47) wird ein Verbindungsmaterial verwendet, das flüssig auf die Kreuzungsstelle (64) ausgegeben oder an der Kreuzungsstelle (64) verflüssigt und anschließend ausgehärtet wird. Dadurch entsteht eine feste Verbindung zwischen den Längsstäben (46) und den Querstäben (47) an den Kreuzungsstellen. Zwischen den Kreuzungsstellen (64) haben die Längsstäbe (46) und die Querstäbe (47) Abschnitte, die frei sind von Verbindungsmaterial (V).
摘要:
The present invention ensures strength of a mesh body and reduces gloss of the mesh body. A nonwoven fabric (8) is formed by laminating crosswise a split web (1) and a slit web (6), that are made of a thermoplastic resin, so that their orientation axes cross each other. Furthermore, the nonwoven fabric (8) has surface-bonded portions (8a) formed by bonding contact portions of the split web (1) and the slit web (6), and circular concave portions (8b) formed on a surface of the nonwoven fabric (8) by an embossing processing.
摘要:
Method of fabricating a 3-dimensional structure, mesh formwork element for fabricating a 3-dimensional structure, and method of fabricating the same. The method of fabricating a 3-dimensional structure comprises providing a mesh formwork element such that a cavity bound by at least two opposing portions of the mesh formwork is formed; accumulating a material in the cavity; and allowing the material to harden; wherein apertures in the at least two opposing portions of the mesh formwork element are adapted to the hydro-static pressure of the accumulated material or vice versa such that at least two surfaces of the hardened material substantially take on the respective shapes defined by the two opposing portions of the mesh formwork element.
摘要:
A polymeric netting includes polymeric strands and first and second polymeric ribbons. The first and second ribbons each independently have a height-to-width aspect ratio of at least three to one and a major surface that is intermittently bonded to a polymeric strand, with first and second edges symmetrically disposed on opposite sides of a center line bisecting the major surface. The netting has first and second opposing major surfaces transverse to the major surfaces of the first and second ribbons. The first major surface of the netting includes the first edges of the first ribbons, and the second major surface includes the second edges of the second ribbons. The first ribbons do not extend to the second major surface, and the second ribbons do not extend to the first major surface. Articles including the netting, an extrusion die, and a method useful for making the netting are also disclosed.
摘要:
Polymeric layers (50) comprising an array of blind openings (56) extending into the first major surface (52, 10111, 11211), but not through the second major surfaces (54, 10112, 11212). The blind openings each have a series of areas through the openings from the first major surface towards the second major surfaces ranging from minimum to maximum areas, where for at least a majority of the blind openings the minimum area is not at the first major surface. At least a portion of the first major surface comprises a first material and extends up to, but not into the second major surface. At least a portion of the second major surface comprises a second, different material. Methods for making the polymeric layers are also disclosed. Polymeric layers are useful, for example, as components in personal care garments such as diapers and feminine hygiene products. They can also be useful for filtering (including liquid filtering) and acoustic applications.