The invention relates to a plastic mesh having a plurality of chains extending parallel to one another in a longitudinal direction, which plastic mesh has a plurality of groups of chains (2) adjacent to one another, which are in each case formed of at least two chains (2a, 2b). The groups of chains (2) have a greater spacing relative to one another or also relative to a further individual chain (1) than the chains (2a, 2b) within a group of chains (2). A thread (3) runs in a zigzag between two adjacent groups of chains (2) or also between one group of chains (2) and an individual chain (1) and connects the chains (1) or groups of chains (2).

Nets, preferably nets for aquaculture are provided, wherein the net comprises cords joined in a net mesh, wherein each cord comprises one or more yarns, the yarns having a tenacity of at least 0.6 N/tex and wherein the net has a mesh size of at least 8 mm, characterized in that the cords further comprise a polymeric resin, wherein the polymeric resin is a homopolymer or copolymer of ethylene and/or propylene, wherein the polymeric resin has a density as measured according to ISO1183 in the range from 860 to 970 kg/m.sup.3, a melting temperature in the range from 40 to 140 C. and a heat of fusion of at least 5 J/g. The invention further relates to a fishing net, a fish farming construction comprising said net, a fish farm, and a method for fish farming.

The invention relates to a plastic mesh having a plurality of chains extending parallel to one another in a longitudinal direction, which plastic mesh has a plurality of groups of chains (2) adjacent to one another, which are in each case formed of at least two chains (2a, 2b). The groups of chains (2) have a greater spacing relative to one another or also relative to a further individual chain (1) than the chains (2a, 2b) within a group of chains (2). A thread (3) runs in a zigzag between two adjacent groups of chains (2) or also between one group of chains (2) and an individual chain (1) and connects the chains (1) or groups of chains (2).

A method is provided that includes: weaving one first portion including warp and weft threads intertwined according to the fundamental weave of each portion of woven wall corresponding to this first portion, stopping introduction of weft threads after insertion of a weft thread associated with the positioning of one elongated element having a main axis, the weft thread being intertwined with the warp threads of each portion of woven wall, introducing each elongated element between the warp threads defining with the associated weft thread, the insertion position of this elongated element, and maintaining in position each elongated element and introducing one new weft thread intertwining warp threads of the structure according to the fundamental weave of each wall portion or according to at least one new weave, to resume production of the structure, with each elongated element not being taken in the structure.

Provided is a method for manufacturing a fishing net formed from a plastic net that can be handled by winding or folding although the net has plastic rigidity. The fishing net is manufactured by (1) a step of preparing a multifilament yarn formed by bundling a plurality of core-sheath type composite filaments, in each of which a core component is made of polyethylene terephthalate and a sheath component is made of polyolefin, (2) a step of preparing a yarn thread obtained by paralleling a plurality of the multifilament yarns, (3) a step of twisting or braiding four yarn threads 11, 12, 13, 14 to obtain a net constructed with strands 1 and intersections 2, (4) a step of heat-treating the net under without pressure to melt the sheath component of the yarn threads 11, 12, 13, 14 constituting the strands 1 and the intersections 2, followed by solidifying, thus obtaining a plastic net, and (5) a step of forming the fishing net using the plastic net.

A wire netting, in particular a safety net, with a plurality of helices which are braided and at least one of which is manufactured of at least one single wire, a wire bundle, a wire strand, a wire rope and/or another longitudinal element with at least one wire comprising one first leg, one second leg and one bending region, wherein, in a front view perpendicularly to a main extension plane of the helix, the first leg extends with at least one first gradient angle with respect to a longitudinal direction of the helix, wherein, in a transverse view in parallel to the main extension plane of the helix and perpendicularly to the longitudinal direction of the helix, the bending region extends at least section-wise with a second gradient angle with respect to the longitudinal direction of the helix, wherein the second gradient angle differs from the first gradient angle.

A fishing tool floating rope. The module stringing core strings a plurality of floating elements at equal intervals. Each floating element has a main body with two ends connected to a neck portion and terminal portion. The neck portion has a radial cross-sectional size less than that of the main body and terminal portion. A covering woven rope is interlaced to cover the module stringing core. The modular snap fastener has a bendable line and plurality of hollow snap fastening members connected to two ends of the bendable line. Each hollow snap fastening member has a U-shaped gap snap fastening slot configured to fit the neck portion. The floating element and modular snap fastener can be quickly assembled to form a string of the module stringing core serving as a center line of circular knitting machine to produce the fishing tool floating rope.

A wire netting, in particular a safety net, with a plurality of helices which are braided and at least one of which is manufactured of at least one single wire, a wire bundle, a wire strand, a wire rope and/or another longitudinal element with at least one wire comprising one first leg, one second leg and one bending region, wherein, in a front view perpendicularly to a main extension plane of the helix, the first leg extends with at least one first gradient angle with respect to a longitudinal direction of the helix, wherein, in a transverse view in parallel to the main extension plane of the helix and perpendicularly to the longitudinal direction of the helix, the bending region extends at least section-wise with a second gradient angle with respect to the longitudinal direction of the helix, wherein the second gradient angle differs from the first gradient angle.

A fiber composition, along with a method for toughening fiber compositions, are described. A fiber composition contains at least three loops along the length of said fiber, wherein the loops are bonded using sacrificial junctions comprising a bonding material that is chemically distinct from the fiber material. In some preferred embodiments, the loops have a circumference of at least one centimeter, and the bonding material is an ultraviolet light-cured adhesive. When a suitable force is applied, one or more sacrificial junctions can break without breaking the continuous fiber. The fiber compositions described herein have a toughness that is many times greater than the toughness of otherwise equivalent compositions of the fiber material which lack any such loops.

A net is disclosed. The net includes a plurality of warps forming rows of loops, and a plurality of stitches joining the rows of loops by a weft. The length of the stitches is more than 140% of a calculated length for the net in a non-stretched, extended state.