US20160060798A1 - A primary cloth for a tufted carpet - Google Patents

A primary cloth for a tufted carpet Download PDF

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Publication number
US20160060798A1
US20160060798A1 US14/784,854 US201314784854A US2016060798A1 US 20160060798 A1 US20160060798 A1 US 20160060798A1 US 201314784854 A US201314784854 A US 201314784854A US 2016060798 A1 US2016060798 A1 US 2016060798A1
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United States
Prior art keywords
nearly
polyester
melting point
continuous
parts
Prior art date
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Abandoned
Application number
US14/784,854
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English (en)
Inventor
Yukihiro Kihara
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Unitika Ltd
Original Assignee
Unitika Ltd
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Filing date
Publication date
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Assigned to UNITIKA LTD. reassignment UNITIKA LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KIHARA, YUKIHIRO
Publication of US20160060798A1 publication Critical patent/US20160060798A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G27/00—Floor fabrics; Fastenings therefor
    • A47G27/02—Carpets; Stair runners; Bedside rugs; Foot mats
    • 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
    • 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
    • D04H3/018—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the shape
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C17/00—Embroidered or tufted products; Base fabrics specially adapted for embroidered work; Inserts for producing surface irregularities in embroidered products
    • D05C17/02—Tufted products
    • D05C17/023—Tufted products characterised by the base fabric
    • 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
    • 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]
    • 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
    • D10B2503/041—Carpet backings
    • D10B2503/042—Primary backings for tufted carpets

Definitions

  • the present invention relates to a primary cloth to stitch pile yarns for a tufted carpet.
  • the tufted carpet is manufactured by the following steps. After pile yarns are stitched to the primary cloth by a tufting machine (tufting step), pre-coating and backing are performed on a back side of the primary cloth (backing step), and then the tufted carpet is manufactured. A dyeing step may be inserted after the tufting step.
  • the primary cloth needs an anti-strain by a stress force in the tufting step and the dyeing step, and an anti-destruction by stitching with needles in the tufting step.
  • the patent reference 1 of the applicant discloses that a nonwoven fabric consisted of continuous filaments is used as the primary cloth.
  • the nonwoven fabric has the specific thermocompression parts by heated-embossing.
  • the continuous filaments are weakly bonded and restricted to prevent that the continuous filaments are damaged with the needles.
  • the example 1 of the patent reference 1 discloses that the heated-embossing is performed in the lower temperature, that is, 25 degrees in temperature than the melting point of the bonding agent of the polyester.
  • the nonwoven fabric does not maintain the original properties to free the continuous filaments in the tufting step. Therefore, when bad parts exist in the tufted carpet, a second tufting step can not be performed after pulling out pile yarns in the bad parts.
  • Patent reference 1 JP2005-287745A
  • the present invention provides the primary cloth in which the continuous filaments are bonded and restricted after the tufting step, and which maintains the original properties.
  • the inventor discovers the primary cloth consisting of the specific continuous filaments which have the specific shape in the cross section.
  • the specific continuous filaments of polyester are not damage by the needles, and maintain the bonding and restricting after the tufting step. Therefore, the primary cloth maintains the original properties, especially in the rigidness.
  • the invention relates to the primary cloth for the tufted carpet comprising of a nonwoven fabric which is consisting of continuous filaments of more than 10 dtex in fineness;
  • the shape of the continuous filament in the cross section has the following nearly ‘Y4’ shape which connects the bottom sides of nearly ‘Y’ parts to up, down, left and right;
  • the continuous filament is consisting of polyester which has a nearly ‘V’ part of the nearly ‘Y4’ shape made of a low melting point polyester and a nearly ‘+’ part excluding the nearly ‘V’ part made of a high melting point polyester;
  • the continuous filaments are bonded one another by melting the low melting point polyester.
  • the nonwoven fabric of the primary cloth is consisting of continuous filaments.
  • the invention is characteristic of the cross section of the continuous filament.
  • the cross section has four nearly ‘Y’ parts as shown FIG. 1 .
  • the bottom sides of the four nearly ‘Y’ parts connect to up, down, left and right, then the nearly ‘Y4’ shape is formed as shown FIG. 2 .
  • the nearly ‘Y4’ shape has four big concave sections 2 , eight convex sections 3 and four small concave sections 4 .
  • the continuous filament has high rigidness with the shape in the cross section, especially the nearly ‘+’ part 5 in the center and the four nearly ‘V’ parts 6 which are connected to the four tips of the nearly ‘+’ part 5 . That is, the continuous filament has higher rigidness with the combination of the nearly ‘+’ part 5 and the nearly ‘V’ parts than a continuous filament having modified cross section such as hexagonal shape or ‘Y’ shape.
  • the continuous filament is consisting of the low melting point polyester and the high melting point polyester.
  • the four nearly ‘V’ parts 6 are made of the low melting point polyester and the nearly ‘+’ part 5 is made of the high melting point polyester. Therefore the continuous filament is a conjugate filament.
  • the primary cloth consists of the nonwoven fabric which is manufactured by accumulating the conjugate filaments, and melting or softening the low melting point polyester, and bonding the conjugate filaments one another by cooling and solidifying the low melting point polyester. The primary cloth is superior in rigidness to bond the conjugate filaments one another with the low melting point polyester.
  • the melting or softening the low melting point polyester is performed by a heat treatment.
  • the heat treatment may be performed on the heated-embossing or blowing of heated-air.
  • the continuous filaments are bonded at the intersection thereof by melting or softening in the thermocompression part.
  • the blowing of heated-air the continuous filaments are bonded at the intersection thereof by melting or softening in the whole. Both the heated-embossing and the blowing of heated-air may be performed.
  • the heated-embossing may be preferably performed because of stabilization of the form of the primary cloth.
  • the emboss role may be preferably have the convex parts which occupy 10 ⁇ 20 percent by area of the emboss role.
  • the convex parts less occupy the primary cloth may be not maintain the original rigidness after the tufting step because the thermocompression parts may be vanished by the needles to decrease the area of the thermocompression parts.
  • the convex parts more occupy the primary cloth may be not maintain the original strength after the tufting step because the thermocompression parts may be destroyed by the needles.
  • the ratio of the low melting point polyester and the high melting point polyester may be 1 to 1 from 4 because considering the strength of the continuous filament, the bonding strength among the continuous filaments and to prevent the bonding part to more harden. Then the ratio of the low melting point polyester is less, the nearly ‘V’ parts 6 of the low melting point polyester tend to flatness and the tips of the nearly ‘+’ part 5 of the high melting point polyester tend to broadness. Even if the continuous filament has the above flatness or the above broadness, the continuous filament may be used in the invention.
  • the primary cloth of the nonwoven fabric is manufactured with a known method except changing a nozzle orifice on a melt spinning.
  • a method of manufacturing the nonwoven fabric by making the continuous filaments with the melt spinning of two polyesters and accumulating the continuous filaments the nozzle orifice having the following figure is used.
  • the figure of the nozzle orifice is said ‘Y4’ figure which connects the bottom sides of ‘Y’ parts to up, down, left and right, besides the ‘ ’ and the ‘ ’ of the adjacent ‘Y’ parts is parallel.
  • the nozzle orifice has four ‘Y’ parts as shown FIG. 3 .
  • the bottom sides of ‘Y’ parts are connected to up, down, left and right to become ‘Y4’ figure.
  • the ‘ ’ 8, 8 of the adjacent ‘Y’ parts is parallel each other, and the ‘ ’ 9, 9 of the adjacent ‘Y’ parts is parallel each other.
  • the two polyester resin is provided and melt spun in the nozzle orifice which has ‘Y4’ figure to become the polyester conjugate filament having the nearly ‘Y4’ shape in the cross section.
  • the polyester conjugate filament has the four big concave sections 2 because the ‘ ’ 8, 8 and the ‘ ’ 9, 9 of the nozzle orifice is parallel.
  • the polyester conjugate filament has the nearly ‘+’ part 5 and the nearly ‘V’ parts 6 joined to the each tip of it.
  • the low melting point polyester resin is provided in a ‘V’ part 10 of the nozzle orifice and the high melting point polyester resin is provided in a ‘+’ part 11 of the nozzle orifice.
  • the conjugate continuous polyester filament in which the nearly ‘V’ parts 6 is formed from the low melting point polyester and the nearly ‘+’ part 5 is formed from the high melting point polyester is obtained.
  • the filamentous web is formed with accumulating them.
  • the heat treatment is applied to the filamentous web.
  • the low melting point polyester of the conjugate polyester filament is molten or softened, and cooled to solidify.
  • the conjugate polyester filaments are one another bonded with the low melting point polyester. So, the nonwoven fabric of the continuous polyester filaments is manufactured. If necessary, a few binder agent may be applied to the nonwoven fabric.
  • the continuous polyester filament is preferably over 10 dtex, more preferably over 15 dtex in fineness so that the nowoven fabric has the rigidness and stabilization after the tufting step. Because the continuous polyester filament is over 10 dtex in fineness, it is prevented to damage the continuous polyester filament by the needles in the tufting step.
  • the upper limit of the fineness is not limited, but may be about 30 dtex to easily cool the continuous polyester filament in the melt spinning.
  • the weight of the primary cloth may be 60 ⁇ 130 g/m 2 to hold the pile yarns. Because the primary cloth is superior in the rigidness and stabilization, the weight of it may be lowered than the known primary cloth.
  • the pile yarns are stitched to the primary cloth to form piles on the primary cloth, then the tufted carpet is obtained.
  • a nylon yarn, a polypropylene yarn or a polyester yarn etc. is used.
  • the back side of the primary cloth having the piles is coated with a backing material after applied with a resin to pre-coat so that the piles are fixed and the tufted carpet is stabilized.
  • a polyvinylchloride resin or polyethylene resin etc. is used as the backing material.
  • the primary cloth comprises of the nonwoven fabric consisting of the continuous polyester filaments.
  • the continuous polyester filament has the nearly ‘+’ part and the nearly ‘V’ parts joined to the each tip of it in the cross section. Both the nearly ‘+’ part and the nearly ‘V’ parts are more rigid than a circle etc. in the cross section. It increases the rigidness to combine the both. Therefore, the primary cloth comprising the continuous polyester filaments is superior in the rigidness.
  • the pile yarns are stitched with the needles, even if the needles hit the continuous polyester filaments, the rigidness of the continuous polyester filaments is not substantially lowered. Therefore, the primary cloth maintains the original form, and is difficult to be deformed by the force of the dyeing step and the backing step. By using the primary cloth, the tufted carpet is manufactured in stabilization.
  • the primary cloth is rigid because that the continuous polyester filaments are bonded with the low melting point polyester consisting of the nearly ‘V’ parts.
  • the bonding points become at the nearly ‘V’ parts, the area of the bonding points become smaller than the filaments which are circle sheath-core filaments in the cross section. Therefore, the bonding points are difficult to damage as they are not resinous.
  • the primary cloth maintains the original form after the tufting step. Furthermore, the primary cloth strongly holds the pile yarns because that the continuous polyester filaments have a lot of the concave parts.
  • the melting point was measured on 20° C./min. of rising temperature speed with differential scanning calorimeter DSC-2 produced by Perkin Elmer Co., Ltd.
  • JIS L 1096 It was measured on JIS L 1096. Ten samples of 5 cm in width and 30 cm in length were prepared. Each sample was tensioned by using Tensilon RTM-500 provided by Toyo Baldwin on the conditions of 20 cm in distance between chucks and 20 cm/min. in tensile speed. Tensile strength of each sample was measured and the average was calculated. The average was the tensile strength of nonwoven fabric (N/5 cm in width). The average in MD direction (machine direction) and in CD direction (cross direction to MD direction) were measured and calculated.
  • Each stress force was measured at 10 percent elongation on the stress-strain curve when each sample was tensioned with the above method described in (5).
  • the average stress force was calculated and was the stress force (N/5 cm in width) at 10 percent elongation.
  • the each average in MD direction (machine direction) and in CD direction (cross direction to MD direction) was calculated.
  • the low melting point polyester was prepared by copolymerizing terephthalic acid of 92 mol percent and isophthalic acid of 8 mol percent as a dicarboxylic acid with ethylene glycol of 100 mol percent as a diol.
  • the low melting point polyester has a melting point of 230° C. and a relative viscosity of 1.44.
  • a Titanium oxide of 4 percent of weight as a nucleating agent was added into the low melting point polyester.
  • the high melting point polyester was prepared by copolymerizing terephthalic acid of 100 mol percent as a dicarboxylic acid with ethylene glycol of 100 mol percent as a diol.
  • the high melting point polyester has a melting point of 260° C. and a relative viscosity of 1.38.
  • the low melting point polyester was provided and melt spun in ‘V’ parts shown FIG. 4 of the nozzle orifice and the high melting point polyester was provided in a ‘+’ part shown FIG. 4 .
  • the melt spinning was performed by discharging the two types of polyester at the rate of 8.33 g/min. per nozzle orifice and at 285° C.
  • the two polyester is the low melting point polyester of 1 weight mass and the high melting point polyester of 2 weight mass.
  • continuous filaments were spun from the nozzle orifices.
  • the continuous filaments were passed in an air sucker device to be drawn into 17 dtex in fineness.
  • the air sucker device was set the place which was 2 meters under the nozzle orifices.
  • the conjugate continuous filaments were opened by an opening device, and accumulated on a moving conveyor of net to obtain a filamentous web.
  • the filamentous web was passed between an embossing role and a flat role which was a heat embossing device.
  • the embossing role had a large number of convex parts each of which had the area of 0.7 mm 2 in the tip, and total area of the convex parts were occupied 15 percent of the entire surface of the embossing role.
  • the embossing condition was 210° C. on the surface of the embossing role, and the linear pressure was 300 N/cm.
  • the obtained nonwoven fabric was 120 g/m 2 by the weight.
  • a dimethylpolysiloxane emulsion was applied to the obtained nonwoven fabric to put on the solid dimethylpolysiloxane of 0.7 percent by the weigh of the nonwoven fabric. As the above, the primary cloth was manufactured.
  • the tufted carpet was obtained of 100 g/m 2 by the same method of the example 1.
  • the low melting point polyester and the high melting point polyester used in the example 1 were prepared.
  • the two types of polyester were provided in the nozzle orifice as shown FIG. 5 which had six slit orifices radially extending from the center.
  • the low melting point polyester were provided and melt spun in the ‘a’ parts in the orifices and the high melting point polyester were provided in the ‘b’ parts in the orifices.
  • the melt spinning was performed by discharging the two types of polyester at the rate of 2.46 g/min. per nozzle orifice and at 285° C.
  • the two polyesters are the low melting point polyester of 1 weight mass and the high melting point polyester of 2 weight mass.
  • the comparative example 1 The comparative example 1
  • the comparative example 1 The comparative example 1
  • a pile yarns were stitched to each primary cloth of the example 1, 2 and the comparative example 1.
  • the pile yarn was a crimped nylon yarn which has 1930 dtex in fineness.
  • the condition of stitching was the gauge ratio of 10 needles/2.54 cm, and the stitch ratio of 10 times/2.54 cm.
  • the height of the cut pile was 3.5 cm.
  • the comparative example 1 The comparative example 1
  • the comparative example 1 The comparative example 1
  • the primary cloths by the example 1 and 2 maintained the tensile strength and the stress force at 10 percent elongation compared with the primary cloth by the comparative example. Therefore, when bad parts exist in the tufted carpet, the pile yarns were pulling from the primary cloth and the second tufting step can be applied to the primary cloth used.
  • the primary cloths by the example 1 and 2 strongly held the pile yarns because it is difficult to pull from them compared with the primary cloth by the comparative example.
  • the thermocompression parts of the primary cloths by the example 1 and 2 were remained after pulling from, therefore the primary cloths was superior to maintain the original form.
  • FIG. 1 is one nearly ‘Y’ part in the nearly ‘Y4’ shape which is the cross sectional view of the continuous filament used in the invention.
  • FIG. 2 is the cross sectional view of the continuous filament used in the invention.
  • FIG. 3 is one ‘Y’ part in the ‘Y4’ figure of the nozzle orifice.
  • FIG. 4 is the ‘Y4’ figure of the nozzle orifice.
  • FIG. 5 is the nozzle orifice which is used in the comparative example 1. Using the nozzle orifice, the continuous filament which has a six leaf in the cross section is obtained.
  • Numeral 1 is the tip of the nearly ‘Y’ part in the nearly ‘Y4’ shape which is the cross section of the continuous filament.
  • Numeral 2 is the concave section in the nearly ‘Y4’ shape.
  • Numeral 3 is the convex section in the nearly ‘Y4’ shape.
  • Numeral 4 is the small concave section in the nearly ‘Y4’ shape.
  • Numeral 5 is the nearly ‘+’ part in the nearly ‘Y4’ shape.
  • Numeral 6 is the nearly ‘V’ part in the nearly ‘Y4’ shape.
  • Numeral 7 is the tip of the ‘Y4’ figure of the nozzle orifice used at the melt spinning.
  • Numeral 8 is of the ‘Y’ part.
  • Numeral 9 is of the ‘Y’ part.
  • Numeral 10 is the ‘V’ part of the ‘Y4’ figure.
  • Numeral 11 is the ‘+’ part of the ‘Y4’ figure.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nonwoven Fabrics (AREA)
  • Carpets (AREA)
  • Automatic Embroidering For Embroidered Or Tufted Products (AREA)
US14/784,854 2013-04-16 2013-12-26 A primary cloth for a tufted carpet Abandoned US20160060798A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2013-085763 2013-04-16
JP2013085763A JP6116984B2 (ja) 2013-04-16 2013-04-16 タフトカーペット一次基布
PCT/JP2013/084781 WO2014171042A1 (ja) 2013-04-16 2013-12-26 タフトカーペット一次基布

Publications (1)

Publication Number Publication Date
US20160060798A1 true US20160060798A1 (en) 2016-03-03

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ID=51731009

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Application Number Title Priority Date Filing Date
US14/784,854 Abandoned US20160060798A1 (en) 2013-04-16 2013-12-26 A primary cloth for a tufted carpet

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Country Link
US (1) US20160060798A1 (ja)
EP (1) EP2987899B1 (ja)
JP (1) JP6116984B2 (ja)
WO (1) WO2014171042A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016183432A (ja) * 2015-03-26 2016-10-20 ユニチカ株式会社 複合不織布

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JPS63295712A (ja) * 1987-02-16 1988-12-02 Mitsubishi Rayon Co Ltd 異形断面熱融着繊維
US5380592A (en) * 1993-12-28 1995-01-10 E. I. Du Pont De Nemours And Company Trilobal and tetralobal cross-section filaments containing voids
JPH10273863A (ja) * 1997-03-28 1998-10-13 Toray Ind Inc タフテッドカーペット用基布およびタフテッドカーペット
JP4267158B2 (ja) * 1999-12-24 2009-05-27 ユニチカ株式会社 タフテッドカーペット用基布およびその製造方法
US6815383B1 (en) * 2000-05-24 2004-11-09 Kimberly-Clark Worldwide, Inc. Filtration medium with enhanced particle holding characteristics
KR100397621B1 (ko) * 2001-05-14 2003-09-13 주식회사 효성 카페트용 폴리(트리메틸렌 테레프탈레이트) ｂｃｆ이형단면사
JP4906237B2 (ja) 2004-03-31 2012-03-28 ユニチカ株式会社 タフテッドカーペット一次基布およびタフテッドカーペット
CA2630525A1 (en) * 2005-12-06 2007-06-14 Wae-Hai Tung Hexalobal cross-section filaments with three major lobes and three minor lobes, carpet tufted from yarn with such filaments, and capillary spinneret orifice for producing such filaments
JP5854458B2 (ja) * 2011-09-30 2016-02-09 ユニチカ株式会社 ポリエステル長繊維不織布の製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016183432A (ja) * 2015-03-26 2016-10-20 ユニチカ株式会社 複合不織布

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JP2014208916A (ja) 2014-11-06
EP2987899B1 (en) 2017-11-01
WO2014171042A1 (ja) 2014-10-23
JP6116984B2 (ja) 2017-04-19
EP2987899A4 (en) 2016-12-07
EP2987899A1 (en) 2016-02-24

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