KR101109606B1 - Textile geogrid and methods for manufacturing thereof - Google Patents

Abstract

PURPOSE: A textile geogride and a method for fabricating the same are provided to improve various matter properties such as tensile strength, friction force, and elongation rate. CONSTITUTION: A method for fabricating textile geogride comprises: a step of forming bunches of filaments(10) by supplying yarn; a step of supplying warp rib(110) or weft rib(140) by arranging the filaments in several strands; a step of supplying reinforcing fabric(120) to place on the upper side of the warp rib or weft rib; a step of weaving the yarn filament in a rectangular net; a step of sewing a folded part of the yarn filament; a step of transferring the rectangular net to a coating tank to resin coating through a discharge induction roller(46); and a step of drying the coated resin.

Description

Textile geogrid and method for manufacturing the same

The present invention relates to a textile geogrid and a method for manufacturing the same, and more particularly, to construct a geogrid used for reinforcing soil when carrying out a civil engineering work, reinforcing on one side of an inclined or weft yarn composed of a plurality of yarn filaments. The present invention relates to a textile geogrid that improves various physical properties such as tension, elongation, and frictional force by adding a mesh circular knit or warp knitted fabric as a woven fabric, and a method of manufacturing the same.

Recently, geosynthetics is applied to soil-related fields such as soft ground reinforcement, retaining wall protection, drainage, slope stability. Such geosynthetic fibers have been used a lot since they are easy to use, easy to transport, excellent in functionality and physical properties, and economically advantageous compared to poor construction such as gravel, sand, and giant, which have been conventionally used.

Geosynthetic fiber, a synthetic polymer product that was developed and applied in the early 1960s, has excellent durability, constructability, and economic feasibility, thus preparing new electricity in civil engineering. However, geotextile products such as woven and nonwoven fabrics, which have been used as reinforcement materials for various civil structures until the 1970s, have limitations in terms of tensile strength, tensile modulus, creep, etc. The application of has been limited. This problem was solved by the emergence of geogrid, a high-strength geotextile product developed in the United Kingdom in 1979. Since then, the geogrid has been rapidly developed as it is used for various purposes in various civil works around the world.

In Korea, the use of geogrids has been sought since the 1990s, and in 1993, geogrids were first applied to the design of reinforced earth retaining walls.In the late 1990s, the use of geogrids has become active as domestically produced soft-bonded geogrids have been coated. (Korea Institute of Construction Technology, 1999).

Geogrid is widely used as a reinforcement material in various civil works such as soft ground reinforcement, fill slope reinforcement, reinforcement soil retaining wall, but for this purpose, geogrid reinforcement applied to the site for a long time is not so long. There is still uncertainty regarding durability. The degree of degradation of the engineering properties (especially tensile strength) of geogrid stiffeners over time may vary depending on the material and shape of the geogrid, the environment around which the geogrid is laid, and external loads.

In addition, the damage of geogrids that may occur while laying and filling the backfill soil on top of the geogrid reinforcement when constructing the reinforcement soil structure may also have a significant impact on the long-term stability of the reinforcement soil structure. Particularly in Korea, granite weathering soil (mountain soil), which is widely used as backfilling soil, contains a lot of stones with large particle size, and it is difficult to supply high quality earth and earth and have a great amount of backfilling soil during site construction. As a result, soil containing a large amount of stone with a particle size of more than 19 mm (backfill selection criteria) is used, and there is a great concern for damage to the geogrid reinforcement.

Geotextiles can be broadly classified into extrusion moldings, geotextiles, non-woven fabrics. In the case of nonwoven fabrics, those manufactured by spunbonding are suitable. In particular, geotextiles include geogrids and geomats. These are mainly manufactured by weaving polyester yarns and then polyvinyl chloride (PVC) coating.

Geogrid has a lattice structure and improves the cohesion of soil by mutual affinity with soil in the ground, and prevents the collapse and settlement of the ground, and is used for soft ground reinforcement, retaining wall protection, and slope reinforcement.

Such a geogrid is a material with a lattice in the direction of warp and weft (primary and secondary ribs), which can vary the composition, cross-connection, or bonding method of the strip, and is used as structural reinforcement in the direction of load. do. Geogrids are made of plastic (rigid, sheet) geogrids and textile (soft, woven) geogrids.Plastic geogrids are manufactured by drilling holes in sheets of high-density polyethylene or polypropylene obtained through an extruder and then uniaxially or biaxially stretching them. Geogrid is prepared by laminating or weaving synthetic fibers in lattice form to coat resins such as polyvinyl chloride, acrylic, latex, rubber, and bitumen.

In particular, the textile geogrid is known to be relatively advantageous in terms of packaging, transportation, and construction because it is more economical in terms of manufacturing cost and more flexible than the plastic geogrid.

However, despite these advantages, the textile geogrid has some problems in its manufacturing process.

First, the process of knitting and knitting the synthetic resin using synthetic fibers is separated, so the problem is that the lattice shape of the fabric should be disturbed or limited to a certain amount of volume when transferring the knitted fabric to the coating process. In the case of coating work, there is a problem in that the economical efficiency is lowered because the loss (loss) generated at the start and end of each coating lot (lot) leads to a decrease in the production yield, which leads to a cost increase and a hassle of work.

In addition, since the component is a synthetic fiber, the original physical properties, i.e., modulus or elongation, are changed by the high temperature thermal history received in the coating process, and especially in the case of elongation, a significant rise in relation to heat shrinkage is achieved. There are problems such as being beyond the limiting elongation (usually less than 15%), or the tensile behavior is changed during tensile testing of the product, leading to a decrease in strength utilization.

Problems that occur in manufacturing a geogrid using conventional yarns are as follows.

When using low shrinkage yarns, the shrinkage stress is low, so the shrinkage stress is low, so there is little problem in the process of PVC coating.However, due to the low strength, the amount of yarn used is needed to express the required strength of the product. This is high, the problem of weaving is difficult due to the increase in the number of yarns used, which is difficult to express a certain level of strength. In addition, low shrinkage yarns have high elongation, making it difficult to express high-modulus (elastic modulus, which represents the ratio of stress and strain) in geogrid products.

If high strength yarns are used, the strength and modulus of the yarns are not a big problem.However, due to the high heat shrinkage force in the PVC coating process, the coating loss due to shrinkage is high, resulting in high manufacturing costs, and a high temperature PVC coating process. Due to the shrinkage force at the tenter pin or the grip may cause a process problem that the coating is impossible due to separation from the grip, the higher the shrinkage rate is more severe this tendency. In addition, even if there is no problem in the process, the physical properties of the yarn is severely changed due to the high shrinkage during the heat treatment, in particular, the elongation is greatly increased, the geogrid product is difficult to express the characteristics of high modulus.

Such products according to the prior art have a disadvantage in that the fabrication method and apparatus are very complicated and the tensile strength of the product is very weak in terms of the characteristics of the product, so that the original functionality of the geogrid serving as a reinforcing core material cannot be sufficiently achieved.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems,

To reinforce the textile geogrid as a reinforcing core material used for civil engineering, by sewing and fixing a reinforcing fabric such as a mesh circular circular or warp knitted fabric on one side of the filament part made of filament which is a bundle of synthetic fiber yarn. The object of the present invention is to provide a textile geogrid with improved physical properties such as tensile strength, frictional force and elongation, and a method of manufacturing the same.

Method of manufacturing a textile geogrid of the present invention solved the above problem is to supply a yarn to form a bundle of filaments, and to arrange the filament in a plurality of strands to form a predetermined width in the horizontal direction to supply the warp or weft And supplying a reinforcing fabric to be positioned on an upper surface of the supplied filament; and the reinforcing fabric is arranged in multiple strands so that the reinforcing fabric is composed of warp or weft yarns on opposite sides of the added filament. Supplying the yarn filament with a warp knitting machine to serve as a rectangular mesh; and sewing the overlapped portion of the filament with the reinforcing fabric of the rectangular mesh woven into the rectangular mesh and the yarn filament supplied to the lower side thereof; and The sewn rectangular mesh with a coating tank for resin coating through the discharge guide roller The step of sending by coating the resin; and the step of the resin network of the coating is rectangular drying the coated resin is transferred to the drying; And winding the resin-coated rectangular net with a winding roller.

Here, the reinforcing fabric is characterized in that the mesh circular knit fabric or warp knitted fabric.

Here, the filament used as the warp or weft yarn is characterized by consisting of a yarn of more than 8.5g / denier yarn strength.

Herein, the resin of the coating bath is a PVC resin, and the PVC resin has carbon atoms based on 100 parts by weight of the PVC resin mixture in which the emulsion polymerized PVC resin and the micro suspension polymerized PVC resin are mixed at a weight ratio of 4: 6 to 6: 4. 40 to 60 parts by weight of a phthalate plasticizer of C8 to C10, 0 to 25 parts by weight of an epoxy plasticizer, 2 to 4 parts by weight of a stabilizer selected from the group consisting of Ba-Zn-based and tin-based additives, a diluent and a colorant Characterized in that it comprises 20 to 30 parts by weight.

The present invention provides a textile geogrid manufactured by the manufacturing method disclosed above, characterized in that the inclination direction is reinforced tensile strength 7 ~ 24ton / m, elongation 10 ~ 12%.

The textile geogrid provided according to the method for manufacturing the textile geogrid provided according to the present invention lists the filaments in the form of yarn bundles having a plurality of constant tensile strength and elongation properties such as warp or weft, which are the components thereof, and the filaments of the listed filaments. The reinforcing fabric is added to the upper surface to improve the tensile force, and the effect of shear load transfer, contact reinforcement and frictional force can be obtained.When using the geogrid as a reinforcement material in construction or civil engineering work, the various properties of the geogrid reinforcement and After construction, the reinforcing effect can be maximized.

1 is a manufacturing process diagram showing an example of the manufacturing process of the textile geogrid of the present invention.
Figure 2 is an exploded view showing an example of the warp or weft yarn constituting the textile geogrid of the present invention.
Figure 3 is a main part photograph illustrating a geogrid before the resin coating woven in accordance with the production method of the present invention.
4 to 8 is a main part photograph showing an example of each specification of the geogrid manufactured according to the manufacturing method of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a manufacturing process diagram showing an example of the manufacturing process of the textile geogrid of the present invention, Figure 2 is an exploded view showing an example of the warp or weft yarn constituting the textile geogrid of the present invention, Figure 3 is a view of the present invention A main part photograph illustrating a geogrid before resin coating woven according to a manufacturing method, and FIGS. 4 to 8 are main part photographs showing examples of specifications of a geogrid manufactured according to a manufacturing method of the present invention.

Hereinafter, a warp or weft yarn composed of several strands of filaments constituting the present invention will be described for convenience as a warp rib and a weft bra.

Method for producing a textile geoglyre according to the present invention comprises the steps of supplying yarn to form a filament of the bundle form, the filament of the several strands arranged in a number of strands to form a predetermined width in the horizontal direction to supply inclined or weft; And supplying a reinforcing fabric to be positioned on an upper surface of the supplied filament; and the yarn so that the reinforcing fabric is arranged in multiple strands such that the reinforcing fabric consists of inclined or weft yarns on opposite sides of the added filament. Supplying the filament with a warp knitting machine to serve as a rectangular mesh; and sewing the overlap of the filament and the yarn filament supplied to the lower side of the reinforcing fabric of the rectangular mesh woven into the rectangular mesh; The sewn rectangular web is transferred to the coating tank for resin coating through the discharge guide roller. Comprising mesh of rectangular shape with a resin and the coating is dried to the resin coating is transferred to the drying; the step of coating a resin; And winding the rectangular network made of the resin coating by a winding roller.

The reinforcing fabric is not particularly limited, but preferably, a mesh-shaped circular knit or warp knitted fabric woven in a rectangular shape is used. At this time, the reinforcing fabric is to have a width equal to the width of the inclined rib or weft rib composed of several strands of filament.

The filament used as the warp or weft yarn is made of a yarn having a certain strength, it is preferable to use a bundle type consisting of a yarn having a yarn strength of 8.5g / denier or more.

The resin of the coating bath uses a conventional thermosetting resin used to produce geogrid, more preferably the resin is PVC resin, the emulsion polymerization PVC resin and the micro suspension polymerization PVC resin by weight 4: 6 ~ 6: 40 to 60 parts by weight of a phthalate plasticizer having C8 to C10 carbon atoms, 0 to 25 parts by weight of an epoxy plasticizer, and a Ba-Zn-based and tin-based resin, based on 100 parts by weight of the PVC resin mixture mixed with 4 It is more preferable to use a PVC resin composition comprising 2 to 4 parts by weight of one stabilizer, and 20 to 30 parts by weight of an additive consisting of a diluent and a colorant.

Preferably, the emulsion-polymerized PVC resin uses an emulsion-polymerized PVC resin and a microsuspension-polymerized PVC resin having a k value of 60 to 80 in a k value of Fikentscher, which exhibits viscosity. It is best to use vinyl chloride.

The phthalate plasticizers used in the present invention include di- (2-ethylhexyl) phthalate (DEHP (= DOP): Di- (2-ethylhexyl) phthalate) and di-n-butyl phthalate (DBP: Di-n- butyl phthalate, butylbenzyl phthalate (BBP), diisononyl phthalate (DINP), diisodecyl phthalate (DIDP), di (n-octyl) phthalate (DNOP: Di (n-) octyl) Phthalate) can be used any one selected from the group consisting of.

The epoxy plasticizers are epoxidized double hydrogen bonds of unsaturated fatty acid glycerol esters with hydrogen peroxide or peracetic acid and are classified into ESO (epoxidized soybean oil) and ELO (epoxidized linseed oil). In the present invention, any one of the two epoxy plasticizers is appropriately selected. The epoxy plasticizer improves the thermal stability, increases the plasticization effect, and is cold-resistant and nontoxic.

The diluent and the colorant constituting the additive may be used as long as they are normally used within the scope of not impairing the present invention, and the mixing ratio thereof is preferably mixed in a weight ratio of 1: 1. .

Textile geogrid manufactured according to the manufacturing method of the present invention as described above will have a tensile strength of 6 ~ 20ton / m, elongation 10 ~ 12% reinforced with an oblique direction.

When described in more detail with reference to the accompanying drawings, the manufacturing method of the textile geogrid of the present invention disclosed in the above, the bobbin portion 22 is installed a plurality of bobbins wound around the filament in the form of a yarn having a certain strength The inclination supplied from the inclined supply unit 20 is introduced into the induction roller 26 and is supplied through the first guide 30 in which a plurality of needle holes are formed, and is supplied through the first guide 30. The inclination 10 is transferred to the second guide 33 and guided to be arranged side by side in several strands to form the inclined bobbin 110.

The inclined rib 110 is guided to discharge through the discharge guide guide roller 80 is transferred to the guide guide roller 84 through the guide roller 82, the inclined bobbin 110 is drawn through the guide guide roller 84. ) Is guided to the warp knitting machine 40 through the guide roller 92 via the third guide 90 is supplied.

At this time, the reinforcing fabric 120 constituting the present invention is supplied from the reinforcing fabric bobbin portion 24 consisting of a plurality of bobbins, the number of installation of the reinforcing fabric bobbin of the filament bobbin installed in the inclined supply portion 20 It will be installed in the same number.

The reinforcing fabric 120 is supplied and guided simultaneously to the first guide 30 for guiding the inclination 10, and the guided reinforcing fabric 120 is guided by the reinforcing fabric guide 88 to guide the roller 92. By the warp rib 110 is supplied with a warp knitting machine at the same time.

The reinforcing fabric 120 is guided by the guide roller 92 together with the inclined rib 110 is located on one side, that is, the upper side is supplied to the warp knitting machine.

When the warp rib 110 is supplied to the warp knitting machine, at the same time the weft ribs 140 are supplied, it is served in a rectangular mesh form by the warp knitting machine (40). Here, the filament which is a yarn bundle used as the weft rib 140 is to use the same as the inclination 10 used as the warp rib, except that the supply process to the weft rib 140 also supply the reinforcing fabric at the same time. And it is supplied to the warp knitting machine in the same process as the supply process of the warp rib.

In this case, in the case of the inclined rib 110, weaving design and production plan is established according to the quality (strength and durability) specification of the product, and the width of the inclined rib 110 is determined according to the weaving design.

The warp knitting machine 40 is woven into a rectangular mesh shape, the shape of which is as shown in FIG. The rectangular mesh of geogrid 150 is discharged after weaving from the knitting machine by the discharge guide roller unit 46, the discharged geogrid 150 is PVC resin solution 58 by the guide rollers (42, 44) ) Is filled into the coating bath 50 is impregnated in the resin solution 58, the geogrid 150 is impregnated in the resin solution 58 is the resin solution is inclined bobbin and weft bobbin by the induction roller 56 The geogrid 150 coated with the resin solution guided by the guide roller 56 is uniformly coated inside and outside of the guide rollers 52 and 54 and is transferred to the dryer 60.

At this time, the dryer uses a conventional dryer, it is preferable to use a dryer arranged in a plurality or more horizontally drying apparatus constituting the dryer, such as a far-infrared drying apparatus, so that sufficient drying can be performed during the transfer process, drying temperature of the dryer Is preferably made to 1 to 5 minutes in the temperature range of 150 ~ 200.

By drying in the dryer 60, the PVC resin solution 58 and the fabric are firmly combined into one tissue.

Geogrid 150 completed by drying in the dryer 60 is composed of a warp yarn 200 and a weft yarn 300, the reinforcing fabric is reinforced, as shown in the accompanying drawings, Figures 4 to 8,

The inclined and weft yarns are overlapped to form a stitched portion 130 to form a combined form.

At this time, the inclination varies in width depending on the weaving design. That is, Figure 4 is a case where the tensile load is 6T (where 'T' stands for 'Ton' means the tensile load.), Figure 5 is 8T, Figure 6 is 10T, Figure 7 is 15T, Figure 8 illustrates the completed geogrid of the present invention at 20T. At this time, the width of the weft yarn is formed equally.

The width of the warp or weft yarn is not limited to a large, and as described above, it can be changed according to the weaving design. The reinforcing fabric can also be determined by the choice of the shape, width, and fabric used according to the weaving design.

As described above, the geogrid 150 completely dried in the dryer 60 is transferred to the induction roller 72 through the turning roller 74, and the induction roller 72 is transferred to the take-up roller 70. The manufacturing process of the textile geogrid according to the invention is completed.

At this time, if necessary, the winding roller 70 may cut the geogrid supplied to the winding roller 70 by adjusting the winding amount, and after cutting, a new winding roller is installed to continuously manufacture the geogrid.

According to the present invention, preferably, the warp rib or weft rib reinforced with the reinforcing fabric supplied to the warp knitting machine 40 is fitted to the arrangement width of the warp rib and the weft rib according to the production weaving design before being supplied to the warp knitting machine. The reinforcing fabric may be supplied in a fixed state by primary sewing.

That is, during the manufacturing step of the manufacturing method of the textile geogrid of the present invention, after the step of supplying a reinforcing fabric to be located on the upper surface of the supplied filament (tilt rib or weft rib), the step of sewing and fixing the reinforcing fabric The present invention can be completed further including.

The inclined rib of the structure with the reinforcing fabric padded as described above is a structure as illustrated in FIG. 2, the inclined rib 110 in which a plurality of yarn filaments 10 are arranged and the strength reinforcement on one side of the inclined rib. Fabric 120 is padded, the inclined rib and strength reinforcing fabric may be stitched and coupled to form a sewing unit 130 is formed.

Hereinafter, the present invention will be described in more detail with reference to preferred embodiments. However, the present invention is not limited to the following examples.

[Examples 1 to 5]

1. Tilt Preparation:

   -. Prepare a yarn with a yarn strength of 8.5g / denier or more. Denier of the yarn is as disclosed in Tables 1 and 2 below.

   -. The yarn head (hereinafter referred to as 'bobbin') is determined according to the number of products TON (6T, 8T, 10T, 15T, 20T), and the bobbin frame is placed. (Wherein the yarn head is the same as the 'filament' disclosed above) The head is as shown in Tables 1 and 2 below.

   -. The prepared slope is passed through the needle hole formed in the guide.

-. The number of yarns fed to the warp is as disclosed in Tables 1 and 2 below.

2. Weft Preparation:

   -. The strength is calculated and installed in the bobbin frame of the weft feeder.

   -. The number of yarns fed to the weft is as disclosed in Tables 1 and 2 below.

   -. The yarn feeding method is the same as that of the inclined feeding method.

3. Reinforcement Fabric Preparation:

   -. Reinforcing fabrics shall be prepared using a mesh circular knit fabric. The width of the circular knitted fabric was prepared to have a width equal to the width according to the number of yarns of the yarn inclination.

4. PVC resin solution preparation

PVC resin solution: 100 parts by weight of PVC resin mixture of emulsion polymerization type PVC resin with k value of 60 to 78 and micro suspension polymerization type PVC resin with k value of 60 to 78 with a weight ratio of 4: 6 to 6: 4. , 40 to 60 parts by weight of a phthalate plasticizer, 0 to 25 parts by weight of an epoxy plasticizer, 2 to 4 parts by weight of a Ba-Zn type stabilizer, 20 to 30 parts by weight of an additive consisting of a diluent and a colorant, mixed in a blender to form a liquid resin. Prepare the solution.

The PVC resin mixture is a particulate PVC resin prepared by a special polymerization method to be easily dispersed in a liquid plasticizer to make a stable paste.

The plasticizer serves to soften the PVC resin, the stabilizer is good for tissue bonding of the PVC, and serves to control the viscosity.

5. Textile Geogrid Manufacturing

The prepared warp and weft yarn and the reinforcing fabric according to the manufacturing method of the present invention disclosed above, are sequentially supplied with a warp knitting machine. Weaving into a rectangular mesh form by the warp knitting machine to prepare a reticulated geogrid, the geogrid is immersed in the prepared PVC resin solution to coat the resin solution, the resin solution coated geogrid in a dryer for 1 to 2 minutes Maintained and dried, then wound and prepared by a winder, and cut a portion to prepare a specimen. The test piece is the same as 6T = Fig. 4, 8T = Fig. 5, 10T = Fig. 6, 15T = Fig. 7, 20T = Fig. 8.

At this time, the warp and weft yarn was prepared by weaving so that the warp yarn is 42 lines, the weft yarn 40 lines per 1m length.

The reinforcing fabric was served to be added to the slope.

[Comparative Examples 1 to 5]

A specimen was prepared by preparing a textile geogrid with the same structure as in Examples 1 to 5, except that the reinforcing fabric was padded on the slope.

<Theodolite Head

division Type (T) Denier Seen Remarks slope 6T 6,000 168 Per 1M width 8T 6,000 210 Per 1M width 10T 6,000 252 Per 1M width 15T 9,000 252 Per 1M width 20T 12,000 252 Per 1M width

division Type (T) Denier Seen Remarks Wesa 6T 3,000 160 Per 1M width 8T 3,000 160 Per 1M width 10T 3,000 160 Per 1M width 15T 3,000 160 Per 1M width 20T 3,000 160 Per 1M width

<Property Test>

Physical properties were measured to compare and evaluate the specimens prepared in Examples 1 to 5 and Comparative Examples 1 to 5, and the results are shown in Table 3.

division Design strength
(ton / m) design
Elongation
(%) Slope width
(Mm) Weft width
(Mm) Wide seal
burglar
(ton / m) Elongation
(%) Example 1 6 10-12 8 10 7.7 10.8 Example 2 8 10-12 10 8 9.5 11.7 Example 3 10 10-12 11 7 10.6 10.4 Example 4 15 10-12 13 6 17.9 10.1 Example 5 20 10-12 15 5 23.1 10.3 Comparative Example 1 6 10-12 8 10 6.9 9.13 Comparative Example 2 8 10-12 10 8 7.69 9.59 Comparative Example 3 10 10-12 11 7 10.34 9.97 Comparative Example 4 15 10-12 13 6 12.25 10.24 Comparative Example 5 20 10-11 15 5 19.2 10.08

The tensile tensile strength of Table 3 was measured based on the ISO 10319 Geotextiles-Wide-width tensile test. The tensile strength of the geogrid was compared by measuring the tensile strength in the inclined direction because the load was transferred in the inclined direction.

As a result, when the reinforcing fabric is added to the warp or weft according to the present invention, it can be seen that the physical properties are excellent compared to the case without padding.

10: filament 20: filament supply portion
22: bobbin 26: induction roller unit
30: first guide portion 30 33: second guide
24: reinforcing fabric bobbin 40: weaving machine
46: discharge guide roller portion 50: coating tank
56: guide roller 58: resin coating liquid
60: dryer 70: winding roller
72: guide roller 74: turning roller
28, 42, 44, 52, 54, 74, 80, 82, 86: guide roller
100: warp or weft
110: warp rib 120: reinforcing fabric
130: sewing unit 140: weft rib
150: geogrid 200: slope
300: weft

Claims (7)

Supplying yarn to form a bundle filament, and arranging the filaments into several strands so as to form a predetermined width in a horizontal direction and supplying them to warp ribs or weft ribs;
Supplying a reinforcing fabric to be positioned on an upper surface of the supplied inclined rib or weft rib;
Rectangle net by supplying yarn filaments with warp knitting machines so that the reinforcing fabric is arranged in multiple strands so as to be composed of inclined ribs or weft ribs on the opposite side of the inclined ribs or weft ribs with the added reinforcing fabrics and the inclined ribs or weft ribs with the reinforcing fabrics added. Serving as;
Sewing the overlap of the reinforcing fabric of the rectangular mesh woven into the rectangular mesh with the inclined rib or weft rib and the yarn filament supplied downward;
Transferring the sewn rectangular mesh to a coating bath for resin coating through a discharge guide roller to coat the resin;
The resin-coated rectangular net is transferred to a drying unit to dry the coated resin; And
A method of manufacturing a textile geogrid, comprising the steps of winding up a resin-coated rectangular net with a winding roller.
The method of claim 1,
The reinforcing fabric is a method of manufacturing a textile geogrid, characterized in that the mesh type circular knitted fabric or warp knitted fabric.
The method of claim 1,
The filament used as the warp or weft yarn is a method of manufacturing a textile geogrid, characterized in that made of yarn having a yarn strength of 8.5g / denier or more.
The method of claim 1,
The resin of the coating bath is a PVC resin, the PVC resin C8 ~ carbon atoms with respect to 100 parts by weight of the PVC resin mixture in which the emulsion-polymerized PVC resin and the micro suspension polymerized PVC resin is mixed 4: 4 to 6: 4 by weight. C10 phthalate plasticizer 40 to 60 parts by weight, epoxy plasticizer 0 to 25 parts by weight, 2 to 4 parts by weight of any stabilizer selected from the group consisting of Ba-Zn-based and tin-based, additives 20 ~ Method for producing a textile geogrid, characterized in that it comprises 30 parts by weight.
The method of claim 1,
A method of manufacturing a textile geogrid, characterized in that it serves as 42 lines of warp ribs, 40 lines of weft ribs per unit width of the textile geogrid unit 1m.
It is manufactured by the manufacturing method of any one of claims 1 to 5, the inclination direction is reinforced tensile strength 7 ~ 24ton / m, elongation 10 ~ 12%, number of inclined ribs per unit width 42 lines, Textile geogrid, characterized in that it is formed in a rectangular mesh form of 40 weft ribs.
The method according to claim 6,
The width of the reinforcing fabric of the reinforcing fabric reinforcement ribs and the sewing portion of the rib of the reinforcing fabric is not reinforced is the same as the width of the ribs, the reinforcing fabric portion located between the sewing portion and the sewing portion by the tensile force of both sewing parts Textile geogrid, the width of which is smaller than the width of the rib.

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