KR101776399B1 - Polyester nonwoven fabric for engineering works and manufacturing method thereof - Google Patents
Polyester nonwoven fabric for engineering works and manufacturing method thereof Download PDFInfo
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- KR101776399B1 KR101776399B1 KR1020150133782A KR20150133782A KR101776399B1 KR 101776399 B1 KR101776399 B1 KR 101776399B1 KR 1020150133782 A KR1020150133782 A KR 1020150133782A KR 20150133782 A KR20150133782 A KR 20150133782A KR 101776399 B1 KR101776399 B1 KR 101776399B1
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0256—Ground coverings
- A01G13/0268—Mats or sheets, e.g. nets or fabrics
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
- D04H1/485—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation in combination with weld-bonding
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/542—Adhesive fibres
- D04H1/55—Polyesters
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H13/00—Other non-woven fabrics
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/202—Securing of slopes or inclines with flexible securing means
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Paleontology (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Environmental Sciences (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The present invention relates to a polyester nonwoven fabric for civil engineering and a method for producing the polyester nonwoven fabric and a method for producing the polyester nonwoven fabric. The present invention relates to a polyester nonwoven fabric for civil engineering, which comprises a polyester polymer, a filament spun through an ejector, A method of producing a polyester nonwoven fabric by forming a web on a conveyor belt by filament carding, imparting mechanical strength by thermocompression or needle punching, and imparting shape stability by post-processing and calendering, And a master batch containing a UV stabilizer is used, and after the filament is stretched, the hydrophilic agent is applied to the surface.
The polyester nonwoven fabric for civil engineering according to the present invention and the method for producing the same are prepared by adding a UV stabilizer and a hydrophilic agent when preparing nonwoven fabrics for civil works, so that when the nonwoven fabric thus produced is used, the construction is interrupted, Even if left untreated, the strength of the used nonwoven fabric is maintained. Even if it is rained due to the role of a hydrophilic agent, drainage is good and damage due to water can be reduced. In addition to preventing soil loosening, Thereby solving the conventional problems.
Description
The present invention relates to a polyester nonwoven fabric for civil engineering and a method for producing the same, and more particularly, it relates to a polyester nonwoven fabric for civil engineering and a method for producing the same, The present invention relates to a functional polyester nonwoven fabric suitable for use as a vegetable mat for industrial use, particularly for civil engineering, by appropriately balancing strength, weight, thickness, and other physical and chemical properties sufficient for use as a vegetative cover or vegetation mat, .
Background Art Nonwoven fabrics have been widely used in various fields such as sanitary, medical, agricultural or industrial fields. Especially, nonwoven fabrics used for civil engineering and agricultural purposes are used outdoors together with strength Durability against ultraviolet ray is strong and water-dropping property is required to be excellent. For example, in general, large-scale construction such as construction of a building such as a housing and a living facility as well as an industrial infrastructure in a civil engineering field is performed including a forest area, so that incision and embankment are essential in the construction process When these cut-outs and embossed surfaces are left for a long time, there is a possibility that the dust generated in the surface can harm the human body and the natural environment, and the surface may be lost due to the excellentness. In addition, there are ecological problems , It is necessary to perform the protection work on the cut surface and the embankment as soon as possible. For this purpose, it is common practice to plant the lawn on the surface, and such a method is handled manually, In addition to being delayed, the growth rate is relatively slow, Since the waste of the surface is frequently generated, it is possible to prevent the leakage of the soil by stabilizing the surface when the seeds grow on the vegetation mat by attaching the seeds to the cuts or slopes by preparing the fabric, rice straw or non- Methods have been proposed. For example, Korean Patent Laid-Open Publication No. 2005-0042110 discloses a method of using a polyester nonwoven fabric (geotextile style for civil engineering) A nonwoven vegetable bag made with seeds attached to the front surface is used to insert into the reinforcing mold such as Gebion wire netting, wooden box, iron frame, Korean Patent Laid-Open Publication No. 2014-0063286 discloses a composite mat for civil engineering work and a method for restoration of the composite mat using the same. The present invention relates to a manufacturing method of a composite mat for civil engineering, which comprises a reinforcing woven mat on a heating- The reinforcing fabric mat and the buffering nonwoven fabric are laminated and supplied with a buffering nonwoven fabric, and banding means having a constant width is provided between the reinforcing woven fabric and the buffering nonwoven fabric at regular intervals. .
In spite of the above-described conventional invention, the conventional fabric has a high unit price and is easily broken at the time of needle punching at the time of weaving. Especially, in the form of a fabric, there is a limit of the thickness of the fabric, And the conventional vegetable mats made of fabric have not been able to solve the problem of poor permeability and air permeability. On the other hand, the use of nonwoven fabrics as large vegetation matrices has been proposed, but when fabricated with large vegetation mats, And a problem of durability against ultraviolet rays and hydrophilicity are still not solved. In particular, the nonwoven fabric used for civil engineering is mainly used outdoors, so the influence of ultraviolet rays can not be neglected. In the case of existing products, after the installation is terminated or extended after a certain period of time, It is difficult to maintain the function of the woven fabric. In the case of combining the woven fabric with the hot melt as in the case of the invention of Patent Document 2, there is a problem that the application is limited because the waving is not easy.
In addition, polypropylene long-fiber spunbond needle-punching nonwoven fabric having a characteristic of being advantageous for use as a coastal engineering material due to strong resistance to chemicals, chemical resistance, and alkali resistance in the nonwoven fabric used for civil engineering materials and building materials by the present applicant and Korean Patent Laid-Open Publication No. 2010-0129987 discloses "a polypropylene filament yarn having a diameter of 10 to 30 microns is spun by applying a certain temperature and pressure to maintain it in a web form after spinning, Forming a prebonded web that maintains the same dimensional stability as the spunbond since it is fused; and performing a second needle punching process on the prebonded web produced in the spunbonding step to form fiber entanglement of the unheated fibers Wherein the polypropylene long fiber spunbond needle punching part A method of producing a woven fabric ".
However, in conventional civil engineering nonwoven fabrics including the above-described invention, stability against ultraviolet rays and water dripping characteristics due to outdoor use and the like do not satisfy the characteristics still required for use in civil engineering, especially vegetable mat There were disadvantages.
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and it is an object of the present invention to provide a method for producing a water- And which is sufficiently balanced in strength, weight, thickness and other physical and chemical properties sufficient for use as a vegetation mat.
Another object of the present invention is to provide a method for easily producing a nonwoven fabric having the above-mentioned characteristics with excellent productivity.
The present invention may also be directed to accomplish these and other objects, which can be easily derived by those skilled in the art from the overall description of the present specification, in addition to the above-mentioned and obvious objects.
It is an object of the present invention to provide a method of forming a web by adding a specific UV stabilizer and a hydrophilic agent by a certain method in polyester spinning and producing a nonwoven fabric by using a thermal compression bonding or a needle punching, It is possible to manufacture a nonwoven fabric which can prevent the water from falling out while keeping the strength as high as possible at the time of installation.
In order to accomplish the above object, the present invention provides a method for producing a polyester nonwoven fabric for civil engineering, comprising:
After the polyester polymer is spun and the filament is stretched through the ejector, the web is formed on the conveyor belt by filament carding due to the collision of the impingement plate. The web is thermo-pressed or mechanically struck by needle punching, A process for producing a polyester nonwoven fabric by imparting stability,
Wherein the polyester polymer comprises a masterbatch containing a UV stabilizer and is prepared by applying the hydrophilic agent to the surface after stretching the filament.
According to another embodiment of the present invention, the UV stabilizer is at least one selected from the group consisting of benzotriazole-based, benzodiazon-based, salicylic ester-based, hydroxybenzophenol-based, acrylonitrile substitute, organic nickel compound, salicylate ester, (Hindered Amine Light Stabilizer) -based compounds. The present invention is further characterized in that the compound of the present invention is at least one compound selected from the group consisting of phenanthroline, norbornanobenzoate, oxanilide, hydroxybenzoic acid ester and HALS (Hindered Amine Light Stabilizer).
According to another aspect of the present invention, the hydrophilic agent is selected from an anionic surfactant, a cationic surfactant, and a nonionic surfactant.
According to another embodiment of the present invention, the hydrophilic agent is a dioctyl sodium sulfosuccinic acid surfactant.
According to another aspect of the present invention, the amount of the hydrophilic agent to be applied is 0.5 to 1.5% of the total weight of the nonwoven fabric based on the weight of the solid content of the hydrophilic agent.
According to another embodiment of the present invention, the hydrophilic agent may be prepared by diluting a surfactant selected from an anionic surfactant, a cationic surfactant or a nonionic surfactant to 1 wt% in water, Pick up rate is 20% to 100%.
According to another embodiment of the present invention, the fineness of the filament is in the range of 2 to 10deg.
According to another embodiment of the present invention, the nonwoven fabric has a weight of 50 g / m 2 to 1000 g / m 2.
According to another aspect of the present invention, there is provided a civil engineering polyester nonwoven fabric comprising:
After the polyester polymer is spun and the filament is stretched through the ejector, the web is formed on the conveyor belt by filament carding due to the collision of the impingement plate. The web is thermo-pressed or mechanically struck by needle punching, The polyester nonwoven fabric is produced by imparting stability to the polyester polymer, and the polyester polymer contains a master batch containing a UV stabilizer and is applied to the surface of a hydrophilic material after filament stretching.
The polyester nonwoven fabric for civil engineering according to the present invention and the method for producing the same are prepared by adding a UV stabilizer and a hydrophilic agent when preparing nonwoven fabrics for civil works, so that when the nonwoven fabric thus produced is used, the construction is interrupted, Even if left untreated, the strength of the used nonwoven fabric is maintained. Even if it is rained due to the role of a hydrophilic agent, drainage is good and damage due to water can be reduced. In addition to preventing soil loosening, Thereby solving the conventional problems.
Hereinafter, the present invention will be described in more detail with reference to the preferred embodiments, but it goes without saying that the present invention is not limited to the following embodiments, and various modifications may be made within the scope of the present invention. Furthermore, well-known components, well known operations, and well-known techniques are not specifically described in the detailed description to avoid obscuring the present invention.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular forms include plural forms unless otherwise specified in the specification. Also, components and acts referred to as " comprising (or comprising) " do not exclude the presence or addition of one or more other components and operations.
The term "nonwoven fabric " as used in the present invention means a web of fibers or filaments formed by means other than knitting or weaving and containing bonds between some or all of the fibers or filaments, May be formed by the same thermal, adhesive or mechanical means. Conventional nonwovens are formed by spunbond, meltblown, carding, wetting and air leaching processes.
According to a preferred embodiment of the present invention, the polyester nonwoven fabric for civil engineering use is produced by spinning a polyester polymer, wherein the polyester polymer is a low melting polyester having a melting point of 150 to 220 캜 or a polyester having a melting point of 250 캜 or higher A high melting point polyester can be used. The filament is stretched through an ejector by spinning a circular cross-section fiber using a general round nip, and formed into a web on a conveyor belt by filament opening by collision of an impingement plate, Is passed through two flat rolls and is thermally pressed or passed through an embossing roll to form a nonwoven fabric sheet by thermocompression bonding or needle punching to give shape stability and mechanical strength. Using a master batch containing a stabilizer, After the filament is stretched, a hydrophilic material is coated on the surface of the substrate. In addition, the hydrophilic agent may be added in the form of a master batch, such as a UV stabilizer, not a surface coat, and a UV stabilizer may also be coated on the surface of the nonwoven in the form of a surface coating, However, it is most preferable that the UV stabilizer is added in the form of a master batch and the hydrophilic agent is applied to the surface, as in the specific constitution of the present invention, in terms of durability against ultraviolet rays and hydrophilic properties.
According to another embodiment of the present invention, the UV stabilizer that can be used in accordance with the present invention is at least one selected from the group consisting of benzotriazole based, benzodiazone based, salicylic ester based, hydroxybenzophenol based, acrylonitrile substituted, organic nickel compound, salicylic ester based, A benzoic acid ester derivative, a cinnamic acid ester derivative, a resorcinol monobenzoate, an oxanilide, a hydroxybenzoic acid ester, and a Hindered Amine Light Stabilizer (HALS).
According to another embodiment of the present invention, the hydrophilic agent may be selected from an anionic surfactant, a cationic surfactant or a nonionic surfactant, and most preferably a dioctyl sodium sulfosuccinic acid surfactant is used This is because the hydrophilic agent can be effectively coated on the filament and exhibit excellent hydrophilicity.
According to still another embodiment of the present invention, the amount of the hydrophilic agent to be applied may be 0.5 to 1.5% of the total weight of the nonwoven fabric based on the weight of the solid content of the hydrophilic agent. The hydrophilic agent may be prepared by diluting a surfactant selected from an anionic surfactant, a cationic surfactant or a nonionic surfactant to water in an amount of preferably about 1% by weight to obtain a coating rate of 20% to 100% %. ≪ / RTI >
According to another embodiment of the present invention, the fineness of the filaments constituting the nonwoven fabric may be made to be 2 to 10 denier, and the nonwoven fabric thus produced may have a weight of 50 g / m 2 to 1000 g / m 2 .
According to a preferred embodiment of the present invention, as described above, the shape of the nonwoven fabric according to the present invention can be fixed by thermocompression bonding. For example, However, one can be composed of an embossing roll with an adhesive area of typically 10 to 20% on one side and a swimming roll with a smooth surface on the other, wherein the calender temperature is preferably 180 to 230 DEG C, Preferably from 190 to 220 < 0 > C.
By manufacturing the nonwoven fabric according to the constitution of the present invention, the nonwoven fabric obtained according to the present invention is superior in durability against ultraviolet rays, improved in water dripping, and can maintain the maximum strength for a long period of time outdoors.
Hereinafter, the present invention will be described in more detail with reference to Examples, but the scope of the present invention is not limited to these Examples.
Example 1
A master batch containing a benzotriazole based UV stabilizer was added to a polyester polymer having a melting point of about 250 DEG C so as to contain about 1 wt% of a UV stabilizer, and then a general circular nip was used to measure the yarn fineness at a spinning temperature of 285 DEG C The filaments spun by a fiber having a fineness are solidified through a cooling field and then drawn through an ejector at a speed of about 3,500 m / min, and a dioctyl sodium sulfosuccinic surfactant is added to water in an amount of about 1% by weight The diluted hydrophilic material is applied to the fiber surface such that the pickup ratio is 100% by weight. The impregnated web is formed on the conveyor belt by filament carding by impinging on the impact plate. The formed web is passed between two flat rolls, To obtain a nonwoven fabric.
Example 2
A master batch containing a benzotriazole based UV stabilizer was added to a polyester polymer having a melting point of about 250 DEG C so as to contain about 1 wt% of a UV stabilizer, and then a general circular nip was used to measure the yarn fineness at a spinning temperature of 285 DEG C The filaments spun by a fiber having a fineness are solidified through a cooling field and then drawn through an ejector at a speed of about 3,500 m / min, and a dioctyl sodium sulfosuccinic surfactant is added to water in an amount of about 1% by weight The diluted hydrophilic material is applied on the fiber surface so that the pickup ratio is 100% by weight. The impregnated web is formed on the conveyor belt by filament carding by collision with the impingement plate. The formed web is needle punched to obtain the shape stability and mechanical strength To prepare a nonwoven fabric.
Comparative Example 1
A nonwoven fabric was prepared in the same manner as in Example 1 except that a masterbatch containing a benzotriazole-based UV stabilizer was not used with a UV stabilizer.
Comparative Example 2
A nonwoven fabric was produced in the same manner as in Example 1 except for the step of applying with a hydrophilic agent.
The nonwoven fabrics prepared according to Examples 1 and 2 according to the present invention had excellent durability against ultraviolet rays and improved water dripping as compared with the conventional products. On the other hand, the nonwoven fabric of Comparative Example 1 showed remarkable strength when used outdoors for a long period of time And the nonwoven fabric of Comparative Example 2 had a problem that the water did not drain well and was not drained.
Although the preferred embodiments of the civil engineering polyester nonwoven fabric and the manufacturing method thereof have been described in the foregoing description of the present invention, the contents thereof are not limited to the contents described in the above embodiments, It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (8)
The polyester polymer is prepared by using a material containing a masterbatch containing a UV stabilizer and applying a hydrophilic material to the surface after stretching the filament,
Here, the hydrophilic agent is prepared by diluting a dioctyl sodium sulfosuccinic acid type surfactant to 1% by weight with water and maintaining the pick-up rate to 20% to 100% based on the weight of the nonwoven fabric. A method for producing a polyester nonwoven fabric for civil engineering.
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KR101252395B1 (en) * | 2011-10-26 | 2013-04-08 | 도레이첨단소재 주식회사 | Polyester nonwoven fabric having an improved stability for ultraviolet and preparing method thereof |
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KR101113545B1 (en) | 2009-06-02 | 2012-03-05 | 도레이첨단소재 주식회사 | Polypropylene spunbond nonwoven fabric and the preparing process thereof |
KR101449705B1 (en) | 2012-11-16 | 2014-10-15 | 대윤지오텍 주식회사 | Civil engineering for composite mat and method of manufacturing the composite mat |
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