KR100807268B1 - Apparatus for manufacturing low-lengthened and high-strengthened non-woven fabric and the method for manufacturing thereof - Google Patents

Abstract

The present invention is to form a non-woven mat mat by pressing the fiber yarns such as polyethylene, polypropylene, polyester, etc. by a mechanical method, but the fibrous is more densely connected, so that the connective tissue is not dense well The present invention relates to a device for manufacturing a nonwoven fabric having high strength, particularly for civil works such as a landfill, and a method for manufacturing a nonwoven fabric using the device, comprising: a fiber yarn dispersion device for dispersing a fiber yarn as a raw material; Compression apparatus consisting of a plurality of pressing rollers for producing a fiber sheet (sheet) by pressing the dispersed fiber yarn; A tearing and covering device for pulling out the yarns from the compression rollers in which the yarns are arranged longitudinally or laterally, arranging the yarns in various directions irregularly in their rollers, and covering the tissue more closely. (Iii) apparatus); And a crimping punching device to be needle punched while the fiber sheet is pressed to form a mat (mat) form, consisting of a high tensile force, non-woven fabric prepared by the conventional method, the permeability is controlled, Even if the load itself is light, the rigidity is reinforced, and the structure of the fiber sheet is characterized in that more densely made.

Nonwovens, Polypropylene, Crimping, Rollers, Thermocompression, Needle Punching, Tensile Force, Permeability

Description

Apparatus for manufacturing low-lengthened and high-strengthened non-woven fabric and the method for manufacturing

1 is a perspective view schematically showing an apparatus for manufacturing a conventional fiber sheet.

FIG. 2A is an enlarged front view of the blade of the roller on which the blade is mounted to increase the density in FIG. 1; FIG.

FIG. 2B is a cross-sectional view taken along the line AA ′ of FIG. 2A;

Figure 3 is a schematic configuration diagram schematically showing the configuration of one embodiment of the present invention.

Figure 4a is a perspective view of the take-up device of one embodiment of the present invention.

4B is a front view of the blade wound around the take-up roller of FIG. 4A.

4C is a cross-sectional view taken along the line A-A 'of FIG. 4B.

5A is a schematic perspective view of a first disperser of one embodiment of the present invention;

5B is a schematic perspective view of a second disperser of one embodiment of the present invention;

5C is a schematic perspective view of a receiver of one embodiment of the present invention;

5D is a schematic perspective view of a stacker of one embodiment of the present invention.

6 is a flow chart illustrating a manufacturing method using the apparatus of FIG.

?? Explanation of symbols for the main parts of the drawings ??

100: dispersion device 120: first dispersion machine

140: second spreader 160: receiver

200: pressing device 220, 230, 240, 250, 260: pressing roller

300: collection device 310, 320, 330, 340, 350, 360: collection roller

312 blade 400: pressing punching device

410: laminating machine 420, 430, 440: crimping needle punching machine

450: thermocompressor 500: winding device

The present invention relates to an apparatus and a method for manufacturing a nonwoven fabric, and more particularly, to form a nonwoven fabric into a mat form by pressing a fiber yarn such as polyethylene, polypropylene, polyester, etc. by a mechanical method, but more densely fibrous. The present invention relates to a device for manufacturing a nonwoven fabric having a high degree of strength and high utilization, particularly for landfills, and a method of manufacturing a nonwoven fabric using the device, while being connected and making the connective tissue compact.

In general, non-woven fabric refers to a fabric produced without being woven, and a filament yarn is laminated by a mechanical method or a chemical method to form multiple layers so that tensile strength and rigidity can be ensured even though the thickness is thin.

In other words, non-woven fabric refers to a fabric made without drawing yarns from fibers, and a method of manufacturing a non-woven fabric is a method of making a felt, a method of making a film in the form of a fabric, and combining the fibers into a felt state. There are several methods, such as a method of fusion of fibers and a method of combining fibers with a suitable solvent.

In addition, in manufacturing the nonwoven fabric using the above method, the fibers are oriented to form a web of alternating rows to bond multiple layers, and to form a randomly arranged web to bond several layers together. It can be divided into manufacturing methods.

On the other hand, in the case of manufacturing the nonwoven fabric by a mechanical method, the fiber sheet assembly is pressed several times using a plurality of compression rollers to produce a fiber sheet, and the fiber sheet is passed through a roller equipped with a knife. It forms a randomly arranged web and increases the density of the web structure. Laminated a plurality of layers of fibrous sheets of increased density of the web and again using a plurality of other pressing rollers. A nonwoven fabric of the shape will be manufactured.

However, the nonwoven fabric prepared by the conventional method has a disadvantage in that it is not able to withstand high loads due to a drop in tensile force when used in civil engineering, etc., and is manufactured by stacking multiple layers, so that the density becomes dense and is not easy to drain. There is a problem does not exist, and also to reinforce the rigidity, because several layers must be laminated, so that the load is heavy because of its own load, there is an inconvenience in transportation and construction.

The above problems have been a problem in the production of a fiber sheet, which can be seen as a pre-production stage of the finished nonwoven fabric, a conventional apparatus for manufacturing a nonwoven fabric having such a problem is described in detail below.

Figure 1 is a perspective view schematically showing a device for manufacturing a conventional fiber sheet, Figure 2a is an enlarged front view of the blade of the roller is mounted to increase the density in Figure 1, Figure 2b is Figure 2a It's an AA 'section.

Referring to the drawings, first, the fiber yarns are spread evenly by various methods, and then the fiber yarns are agglomerated to form a thick flat form (a stack of cotton laid out). When the fiber aggregate is passed through a plurality of rollers (not shown) and pressed into a sheet having almost no tensile force, the web structure of the sheet is not dense and not simply stacked. do. The sheet 10 is passed through one or more rollers 20, 30, and 40 on which the blades 22, 32, and 42 are mounted, and the fibers are arranged in one direction so that the tissue is made into a regular sheet 50. When the sheet 50 is subjected to a process of laminating a plurality of layers, the nonwoven fabric is manufactured.

The blades 22, 32, and 42 are formed in a band, but are wound around the outer periphery of the rollers 20, 30, and 40 so that the blades are formed in the entire rollers 20, 30, and 40, and the blades 22 , 32, 42 is mounted to the roller 20, 30 40 is rotated while the fibers are arranged regularly in one direction to act to form the sheet 10 to make the structure of the web to the rule.

However, when manufacturing the nonwoven fabric by using the apparatus as shown in Fig. 1, Fig. 2a and Fig. 2b can be solved to some extent the problem occurring in the conventional nonwoven fabric. However, since the fabric of the sheet is regularly arranged in one direction, the elongation and strength act only in one direction, so the drawback of stretching or tearing in the case of external force in the other direction still remains. There is a problem that exists.

The present invention is to increase the tensile strength to solve the problems present in the nonwoven fabric produced by the conventional device, the thickness is thin, so that the rigidity is reinforced even if the load is light, and maintains low elongation and high strength even though the thickness is thin It provides a manufacturing apparatus and a blade used in the apparatus to facilitate the drainage, and to make the fabric sheet more densely by making the arrangement of the fiber yarn in a multi-direction rather than one direction, It is a technical task to provide a method for producing a nonwoven fabric.

The above technical problem of the present invention is a fiber yarn dispersion device for dispersing the fiber yarn as a raw material to evenly spread the fiber yarn so that the tissue of the fiber sheet (sheet) is made dense and regular;

Compression apparatus consisting of a plurality of pressing rollers for producing a fiber sheet (sheet) by pressing the dispersed fiber yarn;

A tearing and covering device for fibrous yarns, in which the fiber yarns are arranged vertically or laterally, and the fibrous yarns are removed from the pressing rollers, and the fibers are arranged irregularly in various directions on their rollers. Referred to as a "clothing device"; And

It can be made as; a pressing punching device that allows the needle punched while the plurality of laminated fiber sheets are passed through the upper take-up device is formed into a mat (mat) form.

The dispersing apparatus includes a first disperser for making a large bundle of fibers into a bundle of small yarns; A first conveyer which is primarily dispersed and conveys the fiber yarns made of small fiber yarns; A second disperser for further dispersing by way of wind the fibers which may be agglomerated among the conveyed fibers; A second feeder for secondly dispersing well-dispersed fiber yarns; And a receiver for storing the transferred fiber yarns and discharging them to a suitable thickness through a roller at the bottom thereof.

The first disperser is a roller equipped with a protruding piece in the longitudinal direction, and advances the fiber bundle, and at the same time, tears the fiber bundle into small bundles of fiber yarns, and the first and second feeders are pipe-shaped flow paths. Compressed air can be blown to convey the fiber yarns, and the second disperser is formed in a box shape so that the fiber yarns discharged to the upper part of the box by the first feeder can be dispersed as vortices by wind. The dispersed fiber yarns are stacked on the lower portion where the vortex is not formed, and are stacked to be transported by the second conveyer provided at one side of the lower end, and the second conveyer and the devices driven at the previous stage of the conveyer are Is it connected to the optical sensors on both sides of the top of the receiver, When piled up, the driving stops, and when the stacked fibers are lowered below the height at which the optical sensor is installed, they are operated again. The receiver is formed in a box shape, and the fibers are transferred by the second transfer machine, and the optical sensor is placed on the upper end. It is equipped with a second feeder and controls the operation of the devices driven in the previous stage of the feeder.

The pressing device is composed of a plurality of pressing rollers, the fiber yarn laminated through the receiver of the dispersion device is made of a fiber sheet while passing through the plurality of pressing rollers. The fibrous sheet has a regular structure in which the fiber yarns are arranged in the longitudinal or transverse direction.

The apparel apparatus tears the fiber yarns and covers the fiber yarns on their rollers, wherein the tissues of the regular fiber sheet are arranged irregularly, i.e., in multiple directions rather than in a longitudinal or transverse direction. It is a device that covers the fabric sheet irregularly but arranged in a more dense structure. The fiber sheet passed through the pressing device is in the form that the fiber yarns are connected to each other in one direction of longitudinal or transverse. It can withstand the forces acting, but it is difficult to withstand the forces applied in the other direction, so tear these fibers to make an irregular arrangement. In order to do this, it is preferable that the blade is formed on the outer surface of the roller by winding the blade on a general roller, and the upper blade preferably takes the form of an inclined blade or a bent hook in order to tear off the aggregated fibers. .

On the other hand, the pressing punching device is a laminating device for laminating a plurality of layers of the fiber sheet consisting of an irregular but more dense structure of the web (web) through the stomach covering device; And a plurality of laminated fiber sheet is passed through the compression rollers by needle punching can be composed of a needle needle punching machine that can be mixed irregularly once again by the punching can produce the desired nonwoven fabric. By providing a plurality of the above needle needle punching machine can further increase the strength and tensile strength of the nonwoven fabric produced, and further comprises a thermocompressor for thermo-compression of the nonwoven fabric passed through this needle needle punching machine to a higher strength and tensile force Can be added.

On the other hand, a method for producing a nonwoven fabric using the manufacturing apparatus of the present invention configured as described above is a first dispersion step of dispersing a bundle of fibers made of polyethylene yarn, polypropylene yarn or polyester yarn, etc. into a small bundle of fiber yarn;

A first conveyance step of dispersing the fibrous yarns composed of a bundle of small fibrous yarns to a second disperser;

A second dispersion step of further dispersing the fiber yarns that may be agglomerated among the fiber yarns transferred above by vortices formed in the second dispersion machine;

A second transfer step of transferring the well dispersed fiber yarns to the receiver;

The fiber yarns transferred in the second transfer step is stored and discharged to a suitable thickness through the roller of the lower end of the receiver;

The sheet manufacturing step of producing a fiber sheet having a regular arrangement while passing through the plurality of pressing rollers provided in the pressing machine of the fibers of the appropriate thickness is discharged;

Tearing off the regularly arranged fibers of the sheet, the arrangement being made irregular but the tissue is made more dense (採 覆) step;

A sheet stacking step of laminating a plurality of layers of fiber sheets having a dense structure of the web through the stomach covering step; And

Composed of a plurality of laminated fiber sheet through the pressing roller using a compression needle punching machine while pressing the punching step to make the tissue more compact while pressing by needle punching.

When the fiber yarns are stacked at a certain height by using the optical sensor mounted in the receiver in the second transfer step, the transfer stops or continues to be transferred when the fiber yarn is below a certain height, and the transfer step may be further configured to proceed smoothly. It is possible to reinforce the toughness and rigidity of the nonwoven fabric produced by additionally configuring the crimping needle punching machine used in the crimping punching step so as to repeat the crimping punching step two or more times. In addition, after passing the pressing punching step, it is possible to further comprise a thermocompression step of adding a higher toughness and rigidity by passing the pressing roller made of a heat medium.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention configured as described above. Figure 3 is a schematic configuration diagram schematically showing the configuration of one embodiment of the present invention device, Figure 4a is a perspective view of the take-up device of one embodiment of the present invention device, Figure 4b is a front view of the blade wound on the take-up roller of Figure 4a, Fig. 4C is a cross-sectional view taken along line AA ′ of FIG. 4B, FIG. 5A is a schematic perspective view of a first disperser of an embodiment of the present invention, FIG. 5B is a schematic perspective view of a second disperser of an embodiment of the present invention, and FIG. 5C is an embodiment of the device of the present invention. Fig. 5D is a schematic perspective view of the stacker of one embodiment of the apparatus of the present invention, and Fig. 6 is a flowchart showing a manufacturing method using the apparatus of Fig. 3.

Referring to the drawings, the manufacturing apparatus of the present invention is largely distributed device 100; A pressing device 200; A collection device 300; Compression punching device 400; And a winding device 500.

The dispersing apparatus 100 advances the fiber bundle 110 and at the same time the rollers 125 and 127 are provided with two or more protruding pieces 124 and 126 in the longitudinal direction to tear the fiber bundle into a bundle of the fiber yarn. A first spreader 120 formed of a transfer belt 122; The small fiber yarn formed through the first disperser 120, the first feeder 130 to be conveyed through the interior of the flow path formed in the form of a pipe 132 by air pressure; Among the fiber yarns transferred to the first conveyer 130, a process of being conveyed and the fiber yarns which may not be divided in the first disperser 120 are introduced into the upper portion and the vortex forming machine 142 installed on the inlet side thereof. A second disperser 140 for dispersing the fiber yarns bound together by the vortex generated by the second time; A second conveyer 150 for conveying the dispersed fiber yarns through the inside of a flow path formed in the form of a pipe 152 by air pressure through the outlet 144 of the lower part of the second disperser 140; And the fiber yarns transferred through the second conveyer 150 are stacked and stored, and are stacked by a discharge port 162 having a suitable height (10 cm) provided at a lower end thereof, and a transfer belt 164 successively installed at the discharge port 162. Container 160 for discharging the fiber yarn 166;

The laminated fiber yarn 166 discharged by the receiver 160 is changed into a fiber sheet 210 while passing through the pressing device 200. The pressing device 200 is composed of a plurality of pressing rollers. The large first pressing roller 220 and the first auxiliary pressing roller 222 having a small diameter thereon, the second pressing roller 230, the third pressing roller 240 having a large diameter, and a small diameter thereon Three third auxiliary pressing rollers 242, 246 and 248, a fourth pressing roller 250, a large fifth pressing roller 260, and three fifth auxiliary pressing rollers 262 having a small diameter thereon. 264, 266). The first pressing roller 220 is rotated in the clockwise direction while pulling up the laminated fiber yarn 166 transferred by the conveying belt 164 of the receiver 160 and press the first auxiliary pressing roller 222 while passing through And, the laminated fiber yarn 166 passed through the second to the fifth compression roller (230, 240, 250, 260) and the third and fifth auxiliary compression roller (222, 242, 246, 248, 262, 264) 266), it is compressed to have a considerably thinner thickness and has a structure (web, web) that is compressed in a regular arrangement in one direction.

Fiber sheet 210 passed through the pressing device 200 is because the fiber yarns are arranged in one direction and regularly distributed, it should be made irregular but the structure is dense distribution. To do this, the shape is such that one oblique surface 314 has an acute angle (??) with a vertical line (preferably 35 to 55 °) and an acute angle with the other oblique surface 316 smaller than an angle (??). The first inclined rollers 310 and 320 wound around the outer circumferential surface of the roller inclined triangular blade 312 is installed up and down on the rear surface of the fifth compression roller 260 to form the fifth compression roller 260. While pulling the fiber sheet 210 compressed and discharged from the upper and lower sides thereof, the one-way arrangement makes an irregular arrangement in a multi-direction while the tissue generates a dense sheet. It is configured to connect the first and second rollers 330 and 340 and the third and third rollers 350 and 360 in contact with the first and second rollers 310 and 320. At this time, the blade 312 serves to cover the fiber yarn arranged in one direction and cover it with an irregular arrangement so that the tissue of the web becomes more dense.

The fiber sheets 372 and 382 having such irregular but dense webs are transferred to the crimping punching device 400 by the conveying belts 370 and 380 installed up and down at the ends of the third cloth rollers 350 and 360. do.

The pressing punching device 400 is to first overlap the two sheets of fiber sheet 372, 382 discharged from the upper take-up device 300, and then laminated in the stacker 410 provided with a transfer belt 412 at the bottom In this case, the stacker 410 is stacked in the form of a fiber sheet (372, 382) from the top, but made of a box shape consisting of the length of the upper width to make the width (5 ~ 7 m) as much as the desired length and the top In the stacking in the form that the fiber sheet 416 is folded at the end of the stacker 410 by the mover 414 to move left and right repeatedly in the longitudinal direction. At this time, the lower conveyance belt 412 is able to move in accordance with the speed of the upper mover 414 to allow the fiber sheet 416 to be stacked and exit in the width direction.

That is, the conveying direction of the fiber sheet 416 stacked on the stacker 410 and conveyed by the conveying belt 412 is a direction perpendicular to the conveying directions of the upper and lower conveying belts 370 and 380 of the applicator 300. To be transported. By doing so, the fiber sheet 416 stacked in several layers can be transported in the width direction, and the fiber sheet 416 can maintain a constant thickness during transport because it is transported in the width direction. In other words, when the sheet is conveyed in the longitudinal direction, the fiber sheet touching the conveying belt 412 has a large contact force with the belt surface, so that the sheet is conveyed properly, while the stacked fiber sheet is thrown back. It should be.

The fiber sheet 416, which is stacked and transported in several layers from above, has two or more compression needle punching machines 420, 430, and 440, that is, upper and lower compression rollers 422 and 423, and a number of needles 424 on the upper part and the needle on the lower part. Pressed and punched while passing through the pressing needle punching machine 420 formed with a hole 425 corresponding to the 424 to have a strong toughness and strength, and adjust the number of the pressing needle punching machine 420 to adjust the density of the tissue To be adjustable. Since the needle 424 is a general barbed needle (barbed needle), that is, the hook is formed on the side of the needle, but the hook is formed to face upwards, so that when the needle 424 is lowered simply the fiber sheet 416 When passing through the back, but the hook formed on the side of the needle to pull up the fiber yarn to make the arrangement of the fiber yarn more irregular while increasing the density.

Through the pressing needle punching machine (420, 430, 440) passing through the mat (mat) may be further provided to provide a higher toughness and rigidity. At this time, the thermocompressor 450 is disposed inside the cylinders 452 and 453. The heated heat medium was circulated to indirectly and the cylinders 452 and 453 were indirectly heated to perform thermocompression bonding. In the present invention, 'ECOTHERM 2000' of Kukdong Petrochemical Co., Ltd. was used.

The nonwoven fabric produced through such a device is formed by the winding device 500 in the form of a roll and transported, and used as an altar at the construction site.

Hereinafter, a manufacturing method of the present invention will be described with reference to the accompanying FIG. 6.

The manufacturing method of the present invention comprises a first dispersion step (S110) of dispersing a large fiber bundle (110) made of polypropylene yarns into a small fiber yarn bundle;

A first transfer step (S120) of dispersing the fiber yarns formed of a small bundle of fiber yarns to the second disperser 140 using the first transfer unit 130;

A second dispersion step (S130) of dispersing the fiber yarns which may be aggregated among the fiber yarns transferred above by vortices formed in the second disperser 140;

A second transfer step (S140) of transferring the separated and well mixed fiber yarns to the receiver 160 by the second transferr 150;

The fiber yarns transported in the second transfer step is stored and discharged to an appropriate thickness (10 cm) by the outlet 162 and the transfer belt 164 at the bottom of the receiver 160 (S150);

The sheet manufacturing step (S200) is made of a fiber sheet while passing through the plurality of pressing rollers 220, 230, 240, 250, 260 are provided in the pressing device 200, the fibers of the appropriate thickness is discharged;

Among the fibres in this sheet, the fibrous yarns arranged regularly are cut off by the blades 312 held by the take-up rollers 310 and 320 so that the arrangement is made more irregularly but the tissue is made more dense. Step (S300);

The sheet lamination step in which the web sheets (372, 382) of which the structure of the web is densified through the upper scavenging step is transferred by the upper and lower transfer belts (370, 380) and laminated in multiple layers by the laminator (410). (S410); And

The plurality of laminated fiber sheets 416 pass through the needle punching machine formed by the pressing rollers 422 and 423 of the pressing needle punching machine 420, the barbed needle 424 and the hole 425 of the lower plate. Compression punching step (S420) to be made more tightly while the tissue is further compressed by the needle punching;

In the second transfer step (S140), the optical sensor 168 is mounted on the receiver 160 to stop the transfer when the fiber yarns are stacked at a predetermined height, and stop the transfer and resume the transfer when the fiber yarn is lowered below the height (S142). ) Can be further configured to proceed more smoothly, the sheet lamination step (S410) is to transfer the fiber sheet 416 in the width direction by the transfer belt 412, in the pressing punching step (S420) It is possible to reinforce the toughness and rigidity of the nonwoven fabric produced by additionally configuring the pressing needle punching machine 420 to be used two or more sets to repeat the pressing punching step (S422, S424, S426) two or more times; In addition, after passing through the pressing punching step (S420) it can be further configured to pass through the heat press 450 made of a heat medium to add a higher toughness and rigidity (S430).

Hereinafter, the characteristics of the general nonwoven fabric and the characteristics of the nonwoven fabric produced according to the embodiment of the present invention are shown as a table, Table 1 is a characteristic table of the general nonwoven fabric, and Table 2 is a characteristic of the nonwoven fabric produced according to the embodiment of the present invention. Table.

In the above described a preferred embodiment of the present invention, the present invention is not limited to the above-described embodiment, it can be carried out by modifying and modifying within the scope without departing from the spirit of the technical idea of the present invention, such modifications And modifications of the technical spirit should also be seen as belonging to the following claims.

As described above, the nonwoven fabric manufactured by the manufacturing apparatus and the manufacturing method has a thin thickness and excellent strength and elongation, and can be used in various civil ground works because the degree of permeability can be controlled by needle punching and recovery of thermocompression. Particularly, when the nonwoven fabric of the present invention is used in a construction site using sand for horizontal drainage, general soil may be used instead of sand, thereby solving the problem of material procurement, thereby shortening air and improving construction quality. There is a remarkable effect of economic construction that ensures stability, and by controlling the number or operation of the crimping needle punching machine, the degree of crimping and tissue can be adjusted as desired, and the fiber yarn is mixed evenly so that the density of the web structure is Higher than other nonwoven fabrics with the same elongation and stiffness. Is a lightly with easy handling and effective use.

Claims (12)

In manufacturing low elongation and high strength nonwoven fabric, Fiber yarn dispersion device for dispersing the fiber yarn as a raw material to evenly spread the fiber yarn so that the tissue of the fiber sheet (dense) is made dense and regular; Compression apparatus consisting of a plurality of pressing rollers for producing a fiber sheet (sheet) by pressing the dispersed fiber yarn; A tearing and covering device for pulling out and twisting the fiber yarns from the upper compression rollers in which the fiber yarns arranged longitudinally or laterally are arranged irregularly in various directions on their rollers, but covering the tissue more closely. Gathering device); And A low-strength high-strength nonwoven fabric manufacturing apparatus, comprising: a pressing punching device that allows needle punching while a plurality of stacked fiber sheets are pressed into the mat to form a mat. The method of claim 1, The dispersing apparatus includes a first disperser for making a large bundle of fibers into a bundle of small yarns; A first conveyer which is primarily dispersed and conveys the fiber yarns made of small fiber yarns; A second disperser for further dispersing by way of wind the fibers which may be agglomerated among the conveyed fibers; A second conveyor for dispersing secondary dispersed well-dispersed fiber yarns; And a receiver for storing the transferred fiber yarns and discharging them in a suitable thickness through a roller at the bottom thereof. The method of claim 2, The optical sensor is further configured on both sides of the top of the receiver to stop driving when the fibers are stacked up to the height at which the optical sensor is located, and to operate the fibers again when the fibers are lowered below the height at which the optical sensor is installed. Low elongation high strength nonwoven fabric manufacturing apparatus. The method of claim 1, A laminating machine for laminating a plurality of layers of the fibrous sheet, wherein the crimping punching device passes through the upper sheathing device and has a web structure of irregular but more compact structure; And a low-strength high strength nonwoven fabric comprising a plurality of hook needle punching machines equipped with hook needles that allow the multiple stacked fiber sheets to pass through the pressing roller and irregularly mix the fiber yarns of the sheet by needle punching. Manufacturing equipment. The method of claim 4, wherein Low elongation high strength nonwoven fabric production apparatus, characterized in that two or more compression punching device is installed. The method according to any one of claims 1 to 5, The applicator is configured to cover the fiber yarns on their rollers by tearing the fiber yarns attached to the pressing roller by winding the blades in the form of slanted edges or curved ends on a general roller. Low elongation high strength nonwoven fabric manufacturing apparatus. The method of claim 6, Low-intensity high-strength nonwoven fabric manufacturing apparatus, characterized in that the angle of the bevel is configured to make an oblique angle of 35 to 55 ° with one oblique side and a smaller angle than the acute angle of the other oblique side. In the method of manufacturing a nonwoven fabric using the manufacturing apparatus of claim 6, A first dispersion step of dispersing the large fiber bundles into the small fiber yarn bundles; A first conveyance step of dispersing the fibrous yarns composed of a bundle of small fibrous yarns to a second disperser; A second dispersion step of further dispersing the fiber yarns that may be agglomerated among the fiber yarns transferred above by vortices formed in the second dispersion machine; A second transfer step of transferring the well dispersed fiber yarns to the receiver; The fiber yarns transferred in the second transfer step is stored and discharged to a suitable thickness through the roller of the lower end of the receiver; The sheet manufacturing step of producing a fiber sheet while passing through the plurality of pressing rollers provided with a pressing machine of the fibers of the appropriate thickness is discharged; A shaving step of tearing the fibers arranged regularly among the fibers of the sheet and covering them with rollers, wherein the arrangement is irregular and the tissue is made more compact; A sheet stacking step of laminating a plurality of layers of fiber sheets having a dense structure of the web through the stomach covering step; And Low-strength high-strength nonwoven fabric manufacturing method, characterized in that consisting of a plurality of laminated fiber sheet through the pressing roller using a pressing needle punching machine while pressing the punching step to make the tissue more compact while pressing by needle punching. The method of claim 8, In the second transfer step, the optical sensor is mounted on the receiver, and when the fiber yarns are stacked to a certain height, the transfer stops and the transfer stops and continues the transfer step. High strength nonwoven fabric manufacturing method. The method of claim 8, Low elongation high strength nonwoven fabric manufacturing method characterized in that to repeat the pressing punching step two or more times. The method of claim 8, The low elongation high strength nonwoven fabric manufacturing method characterized by further comprising a thermocompression step of adding a higher toughness and rigidity by passing the pressing roller made of a heat medium after the pressing punching step. The method of claim 8, The sheet lamination step is a low-strength high-strength non-woven fabric manufacturing method, characterized in that to be conveyed in the width direction when conveying the fiber sheet by a conveying belt.

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