KR20150113327A - Spunbonded Nonwoven for Primary Carpet Backing Having Higher Pile Yarn Holding Strength Property - Google Patents
Spunbonded Nonwoven for Primary Carpet Backing Having Higher Pile Yarn Holding Strength Property Download PDFInfo
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/098—Melt spinning methods with simultaneous stretching
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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
- D04H13/00—Other non-woven fabrics
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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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
- D04H3/009—Condensation or reaction polymers
- D04H3/011—Polyesters
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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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
- D04H3/147—Composite yarns or filaments
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C15/00—Calendering, pressing, ironing, glossing or glazing textile fabrics
- D06C15/02—Calendering, pressing, ironing, glossing or glazing textile fabrics between co-operating press or calender rolls
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/04—Heat-responsive characteristics
- D10B2401/046—Shape recovering or form memory
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/062—Load-responsive characteristics stiff, shape retention
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/063—Load-responsive characteristics high strength
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2503/00—Domestic or personal
- D10B2503/04—Floor or wall coverings; Carpets
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
The present invention relates to a spunbonded nonwoven fabric for carpet bubbles capable of stably holding a pile yarn by a nonwoven fabric for a base fabric in the production of carpet, thereby maintaining excellent thermal and morphological stability of the carpet.
The spunbond nonwoven fabric is highly productive and has high strength and low toughness properties and is used in many industrial fields. Since it is excellent in strength and drainage property, it is used for civil engineering and construction purposes and has excellent durability against price It is also widely used for automobiles.
Especially, recently, it has been found that the spunbonded nonwoven fabric has excellent shape stability and dust particle collecting ability, and it is widely used as a filter material. It has excellent uniformity and excellent shape stability at a high temperature, It is also used for primary tufting carpet backing.
Among the uses of spunbonded nonwovens, it is known that it is difficult to produce carpet bubbles, which cause the needles to pass through the nonwoven during the tufting process of transferring the carpet yarn (BCF) onto the nonwoven fabric, In the process, a thick carpet yarn of 1000 denier or more is planted at a high speed on a weak nonwoven fabric having a basis weight of 80 to 120 gsm (grams per square meter).
The carpet yarn is referred to as pile yarn, and the filament fibers constituting the nonwoven fabric are damaged or broken by the friction between the penetrating needle and the filament yarn, and the physical properties of the nonwoven fabric such as tensile strength and tear strength are lowered.
In addition, since the filaments laid on the nonwoven fabric are held by the friction of the nonwoven fabric, they are easily released or pulled out when the frictional force is low, which is a major cause of defects in subsequent processes.
That is, in order to maintain the main properties of the nonwoven fabric after tufting in a high state, it is necessary to reduce the friction between the nonwoven fabric and the nonwoven fabric as much as possible. On the contrary, in order to strengthen the binding force between the nonwoven fabric and the filament after tufting, Likewise, if one of the factors that are opposite to each other is improved, there is a problem that the performance of the other one is deteriorated.
In order to solve the above problems, the present applicant has proposed a process for producing a composite nonwoven fabric having excellent tensile strength, elongation and tear strength in Korean Patent Laid-Open Publication No. 10-2012-0001963, And a step of mounting the melt blown nonwoven fabric on the spunbond nonwoven fabric, entangling the same by water punching, and then drying the blown nonwoven fabric.
The present invention can provide a nonwoven fabric for a carpet bubble having a low tensile strength drop rate even in a tufting process of carpet manufacturing. However, since two or more kinds of nonwoven fabric materials must be prepared and processed in a separate process, , And since a material such as polypropylene having a melting temperature of 160 캜 is used as a heat-bonding material, it can not be used for applications such as carpets for architectural flooring manufactured by coating heat treatment at 180 캜 or higher.
In order to compensate for this, the present applicant has proposed a method for producing a spunbonded nonwoven fabric having a two-layer structure having a density gradient in Korean Patent Publication No. 10-0650144. According to this method, There is an advantage that it can be manufactured simply at the facility.
However, this method is composed of a nonwoven fabric layer having a high fiber diameter of 9 denier or more and a nonwoven fabric layer having a low fiber diameter of 4 denier or less for use as a filter, and also has a strong form stability at high wind pressure required for filter applications It is necessary to use a large amount of a low melting point polymer to exhibit a high tensile strength.
However, since the nonwoven fabric thus manufactured is too hard and strong, the nonwoven fabric structure is largely destroyed by passing through the needles in the tufting process, so that the strength of the nonwoven fabric after tufting drops to 30% or less before tufting, It is lowered to a level that can not be used for carpet use.
The present invention reduces the damage of the carpet prepreg in the tufting process so as to prevent the problems caused by the limitations and disadvantages of the related art as described above, So that the nonwoven fabric is fixed and held.
In order to solve the above-described problems, the present invention provides a low melting point polyester resin composition comprising 92 to 97% by weight of a high melting point polyester yarn composed of fibers having a fineness of 4 to 7 denier and having a melting point of 250 to 270 DEG C, And 80 to 92% by weight of a high-melting-point polyester yarn composed of fibers having a fineness of 7 to 12 denier and having a melting point of 250 to 270 DEG C and a second layer having a melting point of 180 to 230 DEG C And a second layer comprising 8 to 20% by weight of a low melting point polyester yarn, wherein the spunbond nonwoven fabric for carpet bubbles has improved pile gripping force.
Preferably, the high-melting-point polyester is polyethylene terephthalate or polynaphthalene terephthalate, and the low-melting-point polyester is a polyester copolymerized with adipic acid, a polyester copolymerized with isophthalic acid, a copolymer of adipic acid and isophthalic copolymer Is preferably at least one selected from the group consisting of polyester, polybutylene terephthalate, polylactic acid and polyamide.
The basis weight of the spunbonded nonwoven fabric is preferably 70 to 150 g / m 2.
The tensile strength of the nonwoven fabric is 15 to 24 kgf / 5 cm and the tear strength of the nonwoven fabric is 6 to 10 kgf. The tensile strength of the nonwoven fabric after tufting is 11 to 16 kgf / 5 cm and the tear strength is 5 To 8 kgf.
The spunbonded nonwoven fabric according to the present invention is excellent in morphological stability and has a high pile gripping force so that it can reduce the amount of pile yarn used and can minimize the drawbacks of the carpet finished product that may appear in the subsequent process.
In addition, it can be used for both production of high-density carpets of high pile density and general carpets of low pile density, minimization of height of pile yarn, cost reduction, and maximization of difference in file yarn height. It is relatively easy to form a pattern and is relatively advantageous in manufacturing a high-value-added carpet.
Hereinafter, a spunbonded nonwoven fabric for carpet bubbles capable of stably holding a carpet filament yarn and maintaining the thermal and morphological stability of the carpet, and a method of manufacturing the same will be described in detail.
The spunbonded nonwoven fabric for carpet bubbles of the present invention comprises 92 to 97% by weight of a high melting point polyester yarn composed of fibers having a fineness of 4 to 7 denier and a melting point of 250 to 270 DEG C and a low melting point polyester having a melting point of 180 to 230 DEG C And 80 to 92% by weight of a high-melting-point polyester yarn composed of fibers having a fineness of 7 to 12 denier and having a melting point of 250 to 270 DEG C and a second layer having a melting point of 180 to 230 DEG C And a second layer comprising 8 to 20% by weight of a low melting point polyester yarn.
Wherein the spunbond nonwoven fabric is produced by spinning a high melting point polyester having a melting point of 250 to 270 DEG C and a low melting point polyester having a melting point of 180 to 230 DEG C at a fineness of 4 to 12 denier and less than 5 denier, A first layer formed by the above-mentioned radiation concealment and comprising 92 to 97% by weight of a high melting point polyester yarn with a fineness of 4 to 7 denier and 3 to 8% by weight of a low melting point polyester yarn of 5 denier or less, Forming a web of a second layer consisting of 80 to 92% by weight of a high melting point polyester yarn of denier and 8 to 20% by weight of a low melting point polyester yarn having a fineness of 5 denier or less; And a step of thermally bonding the web.
The first layer is made of a thin fiber and has a low content of low melting point polyester yarn so that the fiber movement inside the nonwoven fabric can be smoothly performed when the needle penetrates the tufting operation to prevent damage to the fiber as much as possible, The second layer is made of coarse fibers and the content of the low melting point polyester yarn is high so that the nonwoven fabric can be given shape stability.
As a result, the first layer serves to fix the pile yarn after the tufting process and the second layer provides the nonwoven fabric with proper strength and shape retention.
The high melting point polyester is a general polyester resin having a melting point inherent to the resin because it does not change the melting point. The high melting point means that the melting point is relatively higher than that of the low melting point polyester. The high melting point polyester includes polyethylene Polyethylene terephthalate, polynaphthalene terephthalate, and the like can be applied.
The low melting point polyester has a melting point lower than the melting temperature of ordinary polyester by about 30 to 80 ° C. and is used for heat bonding of high melting point polyester yarn. The coating, heat treatment and drying temperature of a generally used carpet is about 180 ° C. , The melting temperature of the low melting point copolymer polyester should be maintained at 180 DEG C or higher.
In order to produce polyester yarns having such a low melting point, adipic acid or isophthalic acid may be added during the polymerization of the polyester, and they may be used together, and a melting point of 180 to 210 ° C Polybutylene terephthalate, polylactic acid, and polyamide may be used.
It is preferable that the low-melting-point polyester is mixed with an additive in the same kind of polyester as the high-melting-point polyester material. This is because the low-melting-point polyester is melted in the heat bonding step to bond the high- And easily binds to the high melting point polyester which is the same material, thereby more effectively improving the strength of the nonwoven fabric and the carpet.
If the melting point of the low melting point polyester yarn is higher than 230 ° C, the thermal bonding temperature rises to more than 230 ° C, and the tear strength of the nonwoven fabric is lowered. This is due to the minute tension change in the post- It tears easily and causes quality defect.
On the other hand, if the melting temperature of the low melting point polyester yarn is too low to be lower than 180 ° C, the low melting point polyester yarn melts during the subsequent process such as coating, and the toughing sheet tends to break and the heat shrinkage rate also increases. May appear.
Generally, when a polyester spunbonded nonwoven fabric having high strength and high air pressure at a high flow rate such as a filter is manufactured, the content of the low melting point polyester used as a thermal adhesive is preferably 20% by weight or more , It is often used in an amount of 30% by weight or more.
However, in the present invention, unnecessary damage of the polyester yarn by the penetration of needles in the tufting process is prevented, and the tensile strength of the nonwoven fabric is prevented from being lowered, and the flexibility of the nonwoven fabric is imparted to the nonwoven fabric during the high temperature coating, heat treatment and drying processes. The content of the low melting point polyester for thermal bonding is reduced to 3 to 20% by weight.
That is, when the content of the low melting point polyester is as low as 20% by weight or less, the tensile strength of the nonwoven fabric itself decreases but the tensile strength retention after tufting becomes excellent. If the content of the low melting point polyester is lowered, The tensile strength of the nonwoven fabric is reduced due to a decrease in the number of bonding points between the high melting point polyester yarn and the low melting point polyester yarn connecting the high melting point polyester yarn and the low melting point polyester yarn connecting therewith. However, when the needles penetrate the non- have.
Therefore, the tensile strength after tufting is higher than that of the nonwoven fabric containing not more than 20% by weight of nonwoven fabric containing not more than 20% by weight of low melting point polyester yarns, resulting in a more robust carpet. As a result, Is more expensive than general polyester and is used in view of production cost because it is used less, so that the content of low melting point polyester yarn in the nonwoven fabric of the present invention need not exceed 20% by weight.
On the other hand, if the content of the low melting point copolymer polyester is adjusted to less than 3% by weight, the tensile strength of the nonwoven fabric may be too low to increase the tensile strength in the tufting, coating, heat treatment and drying processes.
These high melting point polyesters and low melting point polyesters are respectively fed to an extruder through a feeder and melted and radiated. The intrinsic viscosity (IV) of the high melting point polyester is 0.6 to 0.7 And an intrinsic viscosity of the low melting point polyester is preferably 0.7 to 0.8, and the polyester filament produced by the spinning has a fineness of 4 to 12 denier and 5 denier or less.
Among the 4-12 denier filaments, 4 to 7 denier filaments are laminated in a web form while being mixed with 92 to 97% by weight of high melting point polyester yarn and 3 to 8% by weight of low melting point polyester yarn, And filaments of 7 to 12 denier out of 4 to 12 denier filaments are fused with 80 to 92% by weight of high melting point polyester yarn and 8 to 20% by weight of low melting point polyester yarn and laminated in a web form, Layer, and these two layers are laminated in an upper and a lower direction by using two high-temperature / high-pressure calender rollers or emboss rollers, or a nonwoven fabric is produced by an adhesive method using hot air.
The basis weight of the thus-produced nonwoven fabric is preferably 70 to 150 g / m 2.
In the case of using a heat fixing device for blowing hot air such as a tenter as the hot air adhesion method, the temperature of the hot air device is preferably set to be equal to or slightly higher than the melting point of the low melting polyester yarn, The melt is melted in the thermal bonding process, and the shape disappears while the high melting point polyester is bonded.
As described above, the spunbonded nonwoven fabric in the present invention is composed of two or more layers, and each layer is manufactured by varying the thickness of the constituent fibers and the amount of the low-melting-point polyester yarn for bonding in order to exhibit the optimum effect, As described above, the first layer of the nonwoven fabric is made of polyester fibers having a thickness of 4 to 7 denier and the content of low melting point fibers for bonding is limited to 3 to 8 wt%.
If the thickness of the fiber decreases to less than 4 deniers, the fibers are severely damaged by the needles during the tufting operation, so that it is impossible to provide sufficient gripping power. If the thickness of the fiber exceeds 7 deniers, the number of fibers decreases, I can not raise enough.
In addition, since the first layer composed of relatively thin fibers as compared with the second layer minimizes the damage of the fibers by the needles to maintain the frictional holding power, it is necessary to ensure the movement of the fibers at the time of tufting to the utmost, It is preferable that the content of the low melting point fiber for bonding of the low melting point fiber is kept as low as 3 to 8% by weight.
If the content of the low melting point fiber for bonding is more than 8 wt%, it is difficult to move the fibers and breakage of the fibers occurs when the needles are penetrated. If the content is too low, less than 3 wt% The strength of the non-woven fabric layer itself lowers to such an extent that the tufting impact can not be absorbed.
Although not particularly limited, the tufting needle is normally introduced through the first layer, which serves to hold the filament firmly inside the nonwoven fabric after needle penetration.
The second layer of the nonwoven fabric according to the present invention plays a role of providing appropriate strength and shape retention to the nonwoven fabric. For this purpose, the fiber layer has a higher fiber thickness than the first layer and a higher adhesive fiber content. Polyester yarn, and the content of the low melting point fiber for bonding is maintained at 8 to 20% by weight.
If the thickness of the fibers in the second layer is less than 7 deniers, the fibers are broken by the tufting needles. If the thickness of the fibers exceeds 12 deniers, it is difficult to produce nonwoven fabrics by a general spunbond manufacturing method.
If the content of the low melting point fibers for bonding in the second layer is less than 8% by weight, the nonwoven fabric can not sufficiently provide a strong tensile force provided by the second layer. When the content of the low melting point fibers exceeds 20% by weight, And the tensile strength of the nonwoven fabric after tufting is lowered because the fibers are damaged by the needles when the tufting needle is passed through.
The second layer of high strength is coated with a material such as polyvinyl chloride, polyurethane, and asphalt at a high temperature in order to fix the shape of the carpet after the tufting process and improve the durability, and inevitably manufactures So that the desired manufacturing width can be maintained without changing the shape.
Hereinafter, the present invention will be described in more detail with reference to the following examples, comparative examples and test examples.
It is to be understood, however, that the invention is not to be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Will be apparent to those skilled in the art to which the present invention pertains.
≪ Example 1 >
A high melting point polyester having an intrinsic viscosity of 0.655 and a melting point of 254 DEG C was melted at 288 DEG C and discharged through a spinning nozzle. Adipic acid was added in an amount of 21 mol / wt% to have an intrinsic viscosity of 0.760 and a melting point of 192 DEG C The low melting point copolymer polyester was melted at 288 DEG C and then discharged through the same spinning nozzle for spinning.
Filaments formed by the above spinning were rapidly drawn at a speed of 5000 m / min using an air ejector, spread using a collision plate diffusion method, and then laminated in a web shape while being collected on a conveyor belt.
The web thus produced consists of two layers, one layer (first layer) consisting of 96% by weight of high melting point polyester yarn with a fineness of 5 denier and 4% by weight of low melting point polyester yarn, The upper layer (second layer) is composed of 88% by weight of a high melting point polyester yarn with a fineness of 9 denier and 12% by weight of a low melting point polyester yarn.
The weight of the web was 90 gsm and the moving speed of the conveyor belt was 32 m / min. Then, the web was passed between calender rollers maintaining 130 ° C and 35 N / cm, and hot air of 196 ° C was applied to the spunbond Nonwoven fabric was produced.
≪ Example 2 >
A spunbonded nonwoven fabric was prepared in the same manner as in Example 1, except that the fiber thickness of the first layer was changed to 4 denier and the content of the low melting point polyester yarn was changed to 3 wt%.
≪ Example 3 >
A spunbonded nonwoven fabric was prepared in the same manner as in Example 1 except that the thickness of the second layer was 7 denier and the content of the low melting point polyester yarn was changed to 8 wt%.
<Example 4>
In Example 1, the thickness of the first layer was 7 denier, the content of the low melting point polyester yarn was 8 weight%, the thickness of the second layer was 9 denier, the content of the low melting point polyester yarn was 10 weight %, A spunbonded nonwoven fabric was produced in the same manner as in Example 1 above.
≪ Example 5 >
A spunbonded nonwoven fabric was prepared in the same manner as in Example 1, except that the fiber thickness of the second layer was changed to 10 denier and the content of the low melting point polyester fiber was changed to 20 wt%.
≪ Comparative Example 1 &
In Example 1, the thickness of the first layer was 5 denier, the content of the low melting point polyester yarn was 2 weight%, the thickness of the second layer was 9 denier and the content of low melting point polyester yarn was 12 weight %, A spunbonded nonwoven fabric was produced in the same manner as in Example 1 above.
≪ Comparative Example 2 &
A spunbonded nonwoven fabric was prepared in the same manner as in Example 1, except that the fiber thickness of the first layer was changed to 3 denier and the content of the low melting point polyester fiber was changed to 2 wt%.
≪ Comparative Example 3 &
In Example 1, the fiber thickness of the first layer was 7 denier, the content of the low melting point polyester yarn was 9 weight%, the fiber thickness of the second layer was 9 denier, the content of the low melting point polyester yarn was 10 weight %, A spunbonded nonwoven fabric was produced in the same manner as in Example 1 above.
≪ Comparative Example 4 &
In Example 1, the thickness of the first layer was 5 denier, the content of the low melting point polyester yarn was 4 weight%, the thickness of the second layer was 9 denier, the content of the low melting point polyester yarn was 21 weight %, A spunbonded nonwoven fabric was produced in the same manner as in Example 1 above.
≪ Comparative Example 5 &
A spunbonded nonwoven fabric was produced in the same manner as in Example 1 except that the melting point of the low melting point polyester for thermal bonding was changed to 231 캜.
≪ Comparative Example 6 >
A spunbonded nonwoven fabric was produced in the same manner as in Example 1, except that the melting point of the low melting point polyester for thermal bonding was changed to 178 캜.
<Test example> Measurement of physical properties
The physical performances of the nonwoven fabrics prepared in Examples 1 to 5 and Comparative Examples 1 to 6 were measured according to a long fiber nonwoven fabric evaluation method according to JIS L 1906, and the results are shown in Table 1 below.
The prepared spunbonded nonwoven fabric was tufted using a small tufting machine with a width of 1.0 m. The carpet yarn used was a 1200 denier 96 filament triangular cross-section yarn made of nylon 6 manufactured by Hyosung Co., Ltd. The operating conditions of the tufting machine A loop type carpet was manufactured at a pile height of 2.0 to 5.0 mm, a gauge of 1/12 inch, and an operation speed of 1800 rpm.
At this time, the gripping force of the nonwoven fabric was evaluated by examining the number of peeling of the tufted nonwoven fabric.
Then, the polyvinyl chloride coating solution was adhered to the back of the tufting carpet at 4000 gsm, and the coating process was performed. The maximum temperature of the heat treatment and drying process was maintained at 180 ° C to prepare the carpet at a speed of 6 m / min.
The finished carpet was cut to 50 ㎝ in width and 50 ㎝ in length, which is the general sales and usage standard, and the final carpet product was completed.
(Kg / 5 cm)
(㎏ f)
(Kg / 5 cm)
(㎏ f)
Note 2) The spun bond nonwoven fabric is touched 10 m each,
As can be seen from Table 1, the nonwoven fabrics of the examples and the carpets made therefrom exhibited excellent properties as a whole in comparison with the comparative examples in the evaluation of tensile strength and tear strength.
In more detail, the tensile strength of the nonwoven fabric was highest in Example 5 containing 20% by weight of low melting point polyester yarn in the second layer and Comparative Example 4 containing 21% by weight in the second layer. Example 4 containing 8 wt% of low melting point polyester yarn and Comparative Example 3 containing 9 wt% of polyester yarn showed the next best results.
On the other hand, Comparative Example 2 in which the fiber thickness of the first layer was 3 denier and the low melting point polyester yarn was 2 wt% was the lowest.
Example 5 showed the best physical properties at the tensile strength of the carpet, while Comparative Example 5 in which the melting point of the low melting point polyester was 231 캜 was the lowest, Comparative Example 2 and Comparative Example 4 showed the next lowest tensile strength .
That is, the tensile strength of the nonwoven fabric and the carpet tends to increase as the content of the low melting point polyester yarn increases and decreases as the content of the low melting point polyester yarn increases. However, in the case of the carpet, when the melting point and the content of the low melting point polyester are too high, It looked.
In the case of the tear strength, Example 3 in which the fiber thickness of the second layer was 7 denier and the content ratio of the low melting point polyester yarn was 8 wt% was the most excellent in both the nonwoven fabric and the carpet, and the lowest in Comparative Example 5, Carpets showed low results in Comparative Examples 3 and 4, which contained a lot of low melting point polyester yarns.
That is, the tearing strength is excellent as the second layer has a small fiber thickness and the content of the low melting point polyester yarn is small, and the melting point of the low melting polyester is lower or becomes lower as the content of the low melting point polyester is increased .
In the tufting operation, the dropping of the filament yarn occurred frequently as the filament yarn height was lower, and the filament yarn of the first layer was thickest and the content of the low melting point polyester yarn was more than 8 wt% It is observed that the content of the low melting point polyester yarn in the first layer is lower than 3 wt% in Comparative Examples 1 and 2, and the dropout of the filament yarn is mainly affected by the content of the low melting polyester yarn in the first layer.
If the melting temperature of the low melting point polyester yarn is too high, the nonwoven fabric tears during the tufting operation, and if the melting temperature is too low, the nonwoven fabric tears during the back coating operation.
Claims (5)
Which comprises 80 to 92% by weight of a high melting point polyester yarn composed of fibers having a fineness of 7 to 12 denier and a melting point of 250 to 270 DEG C and 8 to 20% by weight of a low melting point polyester yarn having a melting point of 180 to 230 DEG C Wherein the spunbond nonwoven fabric is a spunbond nonwoven fabric.
Characterized in that the high melting point polyester yarn is made of polyethylene terephthalate or polynaphthalene terephthalate resin.
Wherein the low melting point polyester yarn is selected from the group consisting of a polyester copolymerized with adipic acid, a polyester copolymerized with isophthalic acid, a polyester copolymerized with adipic acid and isophthalic acid, polybutylene terephthalate, polylactic acid and polyamide The spunbonded nonwoven fabric for carpet bubbles has improved pile gripping force, characterized in that it is made of at least one resin.
Wherein the spunbonded nonwoven fabric has a basis weight of 70 to 150 g / m 2.
The nonwoven fabric has a tensile strength of 15 to 24 kgf / 5 cm and a tear strength of 6 to 10 kgf. The tufted nonwoven fabric has a tensile strength of 11 to 16 kgf / 5 cm and a tear strength of 5 to 8 Wherein the spunbond nonwoven fabric has a fiber pile holding power improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140036331A KR20150113327A (en) | 2014-03-27 | 2014-03-27 | Spunbonded Nonwoven for Primary Carpet Backing Having Higher Pile Yarn Holding Strength Property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140036331A KR20150113327A (en) | 2014-03-27 | 2014-03-27 | Spunbonded Nonwoven for Primary Carpet Backing Having Higher Pile Yarn Holding Strength Property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20150113327A true KR20150113327A (en) | 2015-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020140036331A KR20150113327A (en) | 2014-03-27 | 2014-03-27 | Spunbonded Nonwoven for Primary Carpet Backing Having Higher Pile Yarn Holding Strength Property |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20150113327A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019059573A3 (en) * | 2017-09-22 | 2019-05-09 | 코오롱인더스트리 주식회사 | Nonwoven fabric having enhanced pull-out strength for carpet backing fabric and manufacturing method therefor |
| CN112262234A (en) * | 2018-06-19 | 2021-01-22 | 可隆工业株式会社 | Nonwoven fabric for primary backing of carpet and method of making same |
| JP2023501199A (en) * | 2019-11-08 | 2023-01-18 | コーロン インダストリーズ インク | Spunbond nonwoven fabric and tile carpet using the same |
-
2014
- 2014-03-27 KR KR1020140036331A patent/KR20150113327A/en not_active Application Discontinuation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019059573A3 (en) * | 2017-09-22 | 2019-05-09 | 코오롱인더스트리 주식회사 | Nonwoven fabric having enhanced pull-out strength for carpet backing fabric and manufacturing method therefor |
| EP3663452B1 (en) | 2017-09-22 | 2023-07-05 | Kolon Industries, Inc. | Nonwoven fabric having enhanced pull-out strength for carpet backing fabric and production method thereof |
| CN112262234A (en) * | 2018-06-19 | 2021-01-22 | 可隆工业株式会社 | Nonwoven fabric for primary backing of carpet and method of making same |
| EP3779014A4 (en) * | 2018-06-19 | 2022-02-16 | Kolon Industries, Inc. | Non-woven fabric for carpet backing and method for manufacturing same |
| JP2023501199A (en) * | 2019-11-08 | 2023-01-18 | コーロン インダストリーズ インク | Spunbond nonwoven fabric and tile carpet using the same |
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