CN210262214U

CN210262214U - High-strength warp-knitted fabric

Info

Publication number: CN210262214U
Application number: CN201921023575.XU
Authority: CN
Inventors: 崔金声; 李秀华; 仲计彩; 陶爱玲; 江占堂
Original assignee: Hock Technology Co ltd
Current assignee: Hock Technology Co ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-04-07
Anticipated expiration: 2029-07-03

Abstract

A high-strength warp-knitted fabric relates to the technical field of warp-knitted fabrics and comprises warp yarns, weft yarns, first binding yarns for connecting the warp yarns and the weft yarns and second binding yarns connected between the adjacent first binding yarns, the warp yarns comprise 4 polyester filament yarns a and 2 polyester filament yarns B merged together, the weft yarns comprise 4 polyester filament yarns C combined together, the warp yarns have a warp density of 6 yarns/inch, the weft density of the weft yarns is 9 per inch, the first binding yarns are laid along the warp yarns and bind the warp yarns and the weft yarns together at the staggered positions of the warp yarns and the weft yarns, the second binding yarns are bound between the adjacent first binding yarns in a surrounding manner, the high-strength warp-knitted fabric is high in strength and not easy to break, and only one layer needs to be laid in construction in various relatively severe occasions.

Description

High-strength warp-knitted fabric

The technical field is as follows:

the utility model relates to a warp knitting cloth technical field especially relates to a high strength warp knitting cloth.

Background art:

the soft soil is widely distributed in China, not only is marine or lake phase deposited soft soil, but also is mountain impact soft soil, the distribution area and the thickness are different, the soil texture composition is complex, the geographic environment is changed greatly, hidden dangers are everywhere, the soft foundation treatment and reinforcement is very important for improving the bearing capacity of the foundation. The single-layer geotextile with the thickness of less than 200KN/m is easy to break when being used in a severe place, so that the isolation is ineffective, and a plurality of layers of geotextiles need to be laid, thereby undoubtedly increasing the cost and wasting manpower and material resources. The prior art lacks a geotextile which has higher strength so as to be easy to produce and only needs to be laid in construction, thereby saving the engineering investment, improving the engineering efficiency and meeting the engineering requirements.

The utility model has the following contents:

in order to solve the technical problem, the utility model provides a high strength warp-knitted cloth, this kind of high strength warp-knitted cloth intensity is higher, is difficult for breaking off, only need lay the one deck when multiple relatively abominable occasion construction.

The utility model discloses a realize through following technical scheme:

the high-strength warp-knitted fabric is characterized by comprising warp yarns, weft yarns, first binding yarns and second binding yarns, wherein the first binding yarns are used for connecting the warp yarns and the weft yarns, the second binding yarns are connected between the adjacent first binding yarns, the warp yarns comprise 4 polyester filament yarns A and 2 polyester filament yarns B which are combined together, the weft yarns comprise 4 polyester filament yarns C which are combined together, the warp density of the warp yarns is 6 per inch, the weft density of the weft yarns is 9 per inch, the first binding yarns are arranged along the warp yarns and bind the warp yarns and the weft yarns together at the crossing positions of the warp yarns and the weft yarns, and the second binding yarns are bound between the adjacent first binding yarns in a surrounding mode.

In another aspect of the present invention, the warp yarns and the weft yarns are arranged in a vertical relationship, perpendicular to each other without interlacing.

In another aspect of the present invention, the linear density of the polyester filament yarn a is 4440dtex, the linear density of the polyester filament yarn C is 4440dtex, and the linear density of the polyester filament yarn B is 3330 dtex.

In another aspect of the present invention, the first binding yarn density is 2220dtex, and the second binding thread density is 666 dtex.

The utility model has the advantages that:

compared with the common geotextile, the high-strength warp-knitted fabric has higher strength, low elongation at break and low deformation rate, is not easy to break when used in severe occasions, and only needs to be laid on one layer when constructed in various severe occasions, thereby saving the engineering investment and improving the engineering efficiency.

Description of the drawings:

fig. 1 is a schematic structural view of the medium and high strength warp-knitted fabric of the present invention.

In the drawings: 1. warp yarns, 2, weft yarns, 3, first binding yarns.

The specific implementation mode is as follows:

the following will further explain the embodiments of the present invention with reference to the drawings and examples:

in the description of the present invention, it should be understood that the description indicating the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A high-strength warp-knitted fabric comprises warp yarns 1, weft yarns 2, first binding yarns 3 connecting the warp yarns 1 and the weft yarns 2 and second binding yarns connected between the adjacent first binding yarns 3, wherein the warp yarns 1 comprise 4 polyester filament yarns A and 2 polyester filament yarns B which are combined together, the weft yarns 2 comprise 4 polyester filament yarns C which are combined together, the warp density of the warp yarns 1 is 6 per inch, the weft density of the weft yarns 2 is 9 per inch, the first binding yarns 3 run along the warp yarns and bind the warp yarns and the weft yarns together at the intersections of the warp yarns and the weft yarns, and the second binding yarns are bound between the adjacent first binding yarns in a surrounding mode. The warp yarns and the weft yarns are arranged in an up-down relationship and are vertical to each other without interweaving. The linear density of the polyester filament yarn A is 4440dtex, the linear density of the polyester filament yarn C is 4440dtex, and the linear density of the polyester filament yarn B is 3330 dtex. The first binding yarn density is 2220dtex, and the second binding linear density is 666 dtex.

The warp yarns and the weft yarns are in vertical and vertical relation and are not interwoven with each other, and the first binding yarns and the second binding yarns weave the warp yarns and the weft yarns with loops to form an integral structure. The warp yarns and the weft yarns are blended into coarse yarns by using ultra-high-strength polyester filament yarns, so that the strength is high and the elongation is small. The second binding yarns are low stretch yarns and play a connecting role, the first binding yarns are ultra-high-strength polyester filaments, the single strength is high, the friction damage in construction is small, and the binding yarns are firm and durable.

The warp yarns are arranged on the upper layer, the weft yarns are arranged on the lower layer, the warp yarns and the weft yarns are in vertical and vertical relations, interweaving does not exist, and yarn strength can be well guaranteed.

The warp yarns are formed by combining 4 pieces of 4440dtex +2 pieces of 3330dtex ultra-high-strength low-elongation polyester filament yarns (the doubling process is omitted, the cost is reduced), the yarns are thick, and the strength reaches 2000N.

The weft yarns are 4 pieces of 4440dtex polyester filament yarns with ultrahigh strength and low elongation (the doubling process is omitted, the cost is reduced), the yarns are thick, and the strength reaches 1460N.

The first yarn of tying up is woven at the skin of warp direction yarn and weft yarn, and the specification 2220dtex ultrahigh strength polyester filament of first yarn of tying up, intensity reach 182N, and difficult wearing and tearing bind firmly to warp direction yarn and weft yarn and have the guard action, make things convenient for the construction of back end. The second binding yarns serve only as connections for the warp yarns.

The single-layer geotextile with the thickness of less than 200KN/m in a common occasion has no problem when being used in a soft foundation, but is easy to break to cause the isolation failure in a special use occasion, the cost is increased by laying multiple layers of geotextiles, and manpower and material resources are wasted. The geotextile with high strength is used for replacing the geotextile, the weft of the weaving machine can only be produced by monofilaments, the yarns of the geotextile are easy to damage in construction, and the weaving machine has the defects of high difficulty of bidirectional 300KN/m, low yield, difficult quality guarantee, no mass production capacity and incapability of meeting the requirements of special engineering. The high-strength warp-knitted cloth can be produced by adopting a warp knitting machine, the warp knitting machine adopts ultrahigh-strength low-stretch yarns to produce bidirectional 400KN/m warp-knitted cloth, the efficiency is high, the quality is ensured, only one layer needs to be laid in construction in various severe occasions, the engineering investment is saved, and various special engineering requirements can be met. The high-strength warp-knitted fabric has high production efficiency, good quality and considerable economic benefit. The thick strength of the yarn is high, the warp yarns and the weft yarns are not interwoven, the yarn distribution rule is uniform, and the strength of the yarn is well preserved.

The high-strength warp-knitted fabric can be prepared by the following preparation method: a set of bundling holes are added in a weft yarn channel of a warp knitting machine (a German Raschel type RS-3-MSUS-V warp knitting machine can be adopted), 4 loose polyester filament yarns C are combined into one yarn, the yarn tension is uniform, a weft laying device drives the combined weft yarn to do reciprocating motion in the whole width direction of the warp knitting machine, the weft yarn is padded into a needle hook of a transmission chain of the warp knitting machine, the transmission chain circularly moves forwards under the transmission of a main shaft of the warp knitting machine to guide weft yarns to enter a knitting area, and the combined weft yarns are sequentially bundled one by bundling yarns to form a fabric. The movements between the binding looping cycles are independent of each other, and only after the previous looping action is completed, the next one can be started.

Because the warp yarns and the weft yarns in the high-strength warp-knitted fabric are thick, the looped loops of the binding yarns are long, the first binding yarns have no elasticity and are difficult to weave, the warp yarns and the weft yarns are bound firmly by the binding yarns, a set of bundling holes need to be added in a weft yarn channel of a warp knitting machine, 4 ultra-high-strength polyester filament loose weft yarns are combined into one piece, the tension of the yarns is uniform, a weft laying device drives the combined weft yarns to reciprocate in the whole width direction of the warp knitting machine, the weft yarns are padded into a needle hook of a transmission chain, the transmission chain circularly moves forwards under the transmission of a main shaft, the weft yarns are guided to enter a weaving area, and the combined weft yarns are sequentially bundled by the binding yarns one by one to form the fabric. When a thick weft is inserted, the yarn consumption increases momentarily and there is sufficient friction between the ground weave and the weft connection to prevent slippage of the yarn. The movements between the binding and looping periods are independent, only after the previous looping action is finished, the next looping action can be started, and only the binding yarns can tightly bind the warp yarns and the weft yarns, the cloth is thick and solid, and the appearance is smooth.

The high-strength warp-knitted fabric produced by the preparation method has high production efficiency, good quality and considerable economic benefit. The thick strength of the yarn is high, the warp yarns and the weft yarns are not interwoven, the yarn distribution rule is uniform, and the strength of the yarn is well preserved.

In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.

Claims

1. The high-strength warp-knitted fabric is characterized by comprising warp yarns, weft yarns, first binding yarns and second binding yarns, wherein the first binding yarns are used for connecting the warp yarns and the weft yarns, the second binding yarns are connected between the adjacent first binding yarns, the warp yarns comprise 4 polyester filament yarns A and 2 polyester filament yarns B which are combined together, the weft yarns comprise 4 polyester filament yarns C which are combined together, the warp density of the warp yarns is 6 per inch, the weft density of the weft yarns is 9 per inch, the first binding yarns are arranged along the warp yarns and bind the warp yarns and the weft yarns together at the crossing positions of the warp yarns and the weft yarns, and the second binding yarns are bound between the adjacent first binding yarns in a surrounding mode.

2. A high strength warp knitted fabric according to claim 1, wherein said warp yarns and said weft yarns are arranged in an up and down relationship, being substantially perpendicular to each other without interweaving.

3. The warp-knitted fabric according to claim 1, wherein the linear density of said polyester filament yarn A is 4440dtex, the linear density of said polyester filament yarn C is 4440dtex, and the linear density of said polyester filament yarn B is 3330 dtex.

4. A high strength warp knitted fabric according to claim 1, wherein said first binding yarn density is 2220dtex and said second binding thread density is 666 dtex.