KR20000041157A - Process for producing polyester conjugated yarn - Google Patents

Process for producing polyester conjugated yarn Download PDF

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Publication number
KR20000041157A
KR20000041157A KR1019980056949A KR19980056949A KR20000041157A KR 20000041157 A KR20000041157 A KR 20000041157A KR 1019980056949 A KR1019980056949 A KR 1019980056949A KR 19980056949 A KR19980056949 A KR 19980056949A KR 20000041157 A KR20000041157 A KR 20000041157A
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South Korea
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yarn
polyester
heat
air
filament
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KR1019980056949A
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Korean (ko)
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KR100467345B1 (en
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손양국
유성우
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조정래
주식회사 효성
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Priority to KR10-1998-0056949A priority Critical patent/KR100467345B1/en
Publication of KR20000041157A publication Critical patent/KR20000041157A/en
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    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/18Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by combining fibres, filaments, or yarns, having different shrinkage characteristics
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02JFINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/08Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02JFINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02JFINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/38Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/34Material containing ester groups
    • D06P3/52Polyesters
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04Fibres 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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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

PURPOSE: A process for producing a polyester conjugated yarn is provided which has excellent twisting property and reduced dyeing difference by using an air entanglement. CONSTITUTION: A polyester conjugated yarn is prepared by following the steps of: heat treating a polyester undrawn fiber at temperature of 150-210°C to draw the heat treated yarn at a ratio of 1.0-1.15; combining the yarn and a high shrinkage polyester undrawn fiber to air-entangle combined yarn; and then rewinding the combined yarn. An equipment for producing a polyester conjugated yarn has a first supplying roller, a second supplying roller, a third supplying roller and a rewinding machine. The polyester undrawn fiber has a birefringence ratio of 30-70x10¬-3. The air-entanglement is performed to air pressure of 3.0-3.8kg/cm¬2.

Description

폴리에스테르 복합가공사의 제조방법Manufacturing method of polyester composite processing

본 발명은 폴리에스테르 복합가공사의 제조방법에 관한 것이다.The present invention relates to a method for producing a polyester composite processing.

종래의 숭고성이 우수한 심초방식의 다층구조의 복합가연사는 두종류 이상의 원사의 신도차이를 이용하여 동일한 가연영역에서 가연정도의 차이를 유발하여 신도가 낮은 원사는 복합가연사의 심(core)구조로 들어가고 신도가 높은 원사는 복합가연사의 초(sheath)구조로 들어가서 심사를 외곽에서 감싸는 구조를 지니게 된다.Conventional multi-layer composite twisted yarns having excellent sublime characteristics induce the difference in flammability in the same flammable area by using the difference in elongation of two or more kinds of yarns. High-yield yarns will enter the sheath structure of the composite twisted yarn and wrap around the screen.

위의 방식으로 제조한 가공사는 보통 심사(내층부)에 단사의 섬도가 큰 원사를 사용하고 초사(외층부)에 단사의 섬도가 작은 원사를 사용한것이므로 원사자체의 부피가 크고 사외층부에 루프가 많으므로 연사공정등에서 작업성이 떨어져서 양산하는데 어려움이 많기 때문에 실용화하기가 어려웠다.Processed yarns manufactured by the above method usually use yarns with high single yarn fineness for screening (inner layer), and yarns with small fineness of single yarn for super yarn (outer layer). As it is many, it is difficult to put into practical use because of difficulty in mass production due to poor workability in the twisting process.

본 발명은 상술한 바와같은 문제점을 해결한 것으로서, 가공사자체의 부피가 적고 염색차를 발생시키지 않으며 연사(twisting)공정까지는 일반원사처럼 표면이 비교적 평할하다가 염색가공시에 루프가 발현되는 폴리에스테르 복합가공사의 제조방법을 제공하는데 그 목적이 있다.The present invention is to solve the problems described above, the process of the process itself is less volume and does not cause dyeing difference, until the twisting (twisting) process, the surface is relatively flat like a normal yarn, the polyester composite is looped during dyeing process The purpose is to provide a method of manufacturing the construction.

도 1 은 본 발명의 제조공정개략도1 is a manufacturing process schematic diagram of the present invention

< 도면의 주요부분에 대한 부호설명 ><Explanation of Signs of Major Parts of Drawings>

FR1; 제 1 공급로울러, FR2; 제 2 공급로울러,FR 1 ; First feed roller, FR 2 ; Second feed roller,

FR3; 제 3 공급로울러, W/R ; 권취기FR 3 ; Third feed roller, W / R; Winder

본 발명을 예시한 도면에 의거 상세히 설명하면 아래와 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

본 발명은 복합가연을 하지 않고도 복합가연을 한것과 같은 제품특성을 갖는 복합 가공사의 제조방법으로서 열수축성이 큰 폴리에스테르사와 폴리에스테르 미연신사를 단순 열처리, 공기교락을 부여하여 제조함을 특징으로 한다.The present invention is a method for producing a composite processed yarn having the same product characteristics as composite composite without performing composite combustion, characterized in that it is produced by providing simple heat treatment and air entrainment of polyester yarn and polyester non-stretched yarn having high heat shrinkability. .

도 1 에 표시한 바와같이 본 발명은 열수축성이 뛰어난 폴리에스테르 필라멘트 연신사(비수수축율 30%이상)와 폴리에스테르 필라멘트 미연신사를 사용한다.As shown in Fig. 1, the present invention uses polyester filament drawn yarn (non-shrinkage ratio of 30% or more) and polyester filament undrawn yarn having excellent heat shrinkability.

즉 복굴절율이 30×10-3∼ 70×10-3인 폴리에스테르 미연신사를 연신비 1.00 ∼ 1.15 로 열연신하여 열에 대한 수축성을 없에 주고, 이를 열수축성이 뛰어난 폴리에스테르 필라멘트 연신사와 동일 로울러(FR2)상에서 합사한 다음에 인터레이서에서 공기압력 3.0 ∼ 3.8kg/cm2으로 공기교락을 부여하고 권취하여 복합 가공사를 제조한다.That is, the non-drawn polyester yarn having a birefringence of 30 × 10 -3 to 70 × 10 -3 is drawn at a draw ratio of 1.00 to 1.15 to give no shrinkage to heat, which is the same as that of polyester filament drawn yarn having excellent heat shrinkability. 2 ) After plying in phase, apply interlacing with air pressure of 3.0 ~ 3.8kg / cm 2 in the interlacer and wind up to make composite yarn.

본 발명에서 후가공시에 미연신사에 의한 염색줄이 발생되지 않도록 온도 및 연신비를 설정해주어야 하는데 열처리온도는 150 ∼ 210℃ 연신비는 1.00 ∼ 1.15로 한다.In the present invention, the temperature and the draw ratio should be set so that the dyeing line by the undrawn yarn does not occur during post-processing, the heat treatment temperature is 150 ~ 210 ℃ draw ratio is 1.00 ~ 1.15.

열처리 온도가 상기 범위를 벗어나면 가공사의 2성분 혼합에 따른 염색성 차이가 발생하고, 연신비가 1.15배를 초과하면 가공사의 촉감이 일반 필라멘트사처럼 불량해져서 숭고성이 뛰어난 가공사를 제조할 수 가 없다.When the heat treatment temperature is out of the above range, the difference in dyeing property due to the mixing of the two components of the processed yarn occurs, and when the draw ratio exceeds 1.15 times, the touch of the processed yarn becomes as bad as that of the normal filament yarn, and thus it is impossible to manufacture the processed yarn having excellent sublime properties.

특히 가공사가 외관상으로 루프등의 불량이 없도록 하기 위해서는 조합되는 사종별로 적정한 연신비와 온도, 공기교락 조건, 권취조건을 설정해 주어야만 한다.In particular, in order to avoid the appearance of loop defects, the processor must set the proper draw ratio, temperature, air entrainment, and winding condition for each type of combination.

본 발명으로 제조한 복합가공사를 연사하여 열고정하고 제직하여 염가공하면 열수축성이 뛰어난 폴리에스테르 연신사가 수축하고 폴리에스테르 미연신사는 자발신장하여 숭고성이 뛰어난 원사를 제조할 수 있다.When the composite work manufactured by the present invention is twisted, heat-set, weaved, and salted, the polyester drawn yarn having excellent heat shrinkability shrinks and the polyester undrawn yarn spontaneously extends to produce yarn having excellent sublime properties.

실시예 1Example 1

폴리에스테르 미연신사 160데니어/192필라멘트(복굴절율 : 50 × 10-3)를 연신비 1.05, 히터온도 200℃에서 열처리한후에 폴리에스테르 고수축 연신사 100데니어/24필라멘트와 합사한 다음 공기압력 3.3kp로 교락부여하여 가공사를 제조하였다.After heat-treating polyester non-drawn yarn 160 denier / 192 filament (birefringence: 50 × 10 -3 ) at draw ratio 1.05, heater temperature 200 ℃, it is spliced with polyester high-stretched drawn yarn 100 denier / 24 filament and air pressure 3.3kp Interlaced to give a processed yarn.

위의 방법으로 제조한 가공사를 1,250 개/m로 연사하고 80℃ × 60분에서 열고정한후 경사빔에 S, Z교호로 6,900본 정경후 일반 고신축 가연사 300데니어/96필라멘트를 위사로 사용하여 위사밀도 50T로 워터제트직기에서 제직하고 로터리워셔에서 120℃ × 30분, 가성소다 0.1 중량% 용액에서 정련, 축소후 190℃ × 1분에서 프리세팅한다. 이를 다시 서큘라감량기에서 가성소다 1.5중량% 용액내에서 95℃ × 20분으로 감량후 염색하였다.After weaving the processed yarn manufactured by the above method at 1,250 pieces / m, heat setting it at 80 ℃ × 60 minutes, and after setting 6,900 pieces with S and Z alternating on the inclined beam, we use 300 denier / 96 filament of general high-stretchable twisted yarn as weft After weaving in a water jet loom with a weft density of 50T, refining in a rotary washer at 120 ° C. × 30 min, caustic soda 0.1 wt% solution, and shrinking and presetting at 190 ° C. × 1 min. This was again reduced by 95 ° C x 20 minutes in a caustic soda 1.5 wt% solution in a circular reducer and dyed.

이를 170℃ × 1분으로 최종열고정하여 제품을 얻었다.Final heat was fixed at 170 ° C. × 1 min to obtain a product.

위의 방법으로 제조한 가공사의 물성은 표 1 과 같다.Physical properties of the processed yarn prepared by the above method are shown in Table 1.

비교예 1Comparative Example 1

폴리에스테르 미연신사 160데니어/192필라멘트(복굴절율 : 60×10-3)를 연신비 1.05, 히터온도 220℃에서 열처리한후에 폴리에스테르 고수축 연신사 100데니어/24필라멘트사와 합사한 다음 공기압력 3.3kp으로 교락부여하여 가공사를 제조하였다.After heat-treating polyester undrawn yarn 160 denier / 192 filament (birefringence: 60 × 10 -3 ) at draw ratio 1.05 and heater temperature 220 ℃, it is then blended with polyester high shrink drawn yarn 100 denier / 24 filament yarn to air pressure 3.3kp. Interlaced to give a processed yarn.

위의 방법으로 제조한 가공사를 1,250개/m으로 연사하여 80℃ × 60분에서 열고정한후 경사빔에, S, Z교호로 6,900본 정경후 일반 고신축 가연사 300데니어/96필라멘트를 위사로 사용하여 위사밀도 50T로 워터제트직기에서 제직하고 로터리워셔에서 120℃ × 30분, 가성소다 0.1중량%용액에서 정련, 축소후 190℃ × 1분에서 프리세팅한다. 이를 다시 서큘라감량기에서 가성소다 1.5중량%용액에서 95℃ × 20분으로 감량후 염색하였다.After weaving the processed yarn manufactured by the above method at 1,250 pieces / m, heat setting it at 80 ℃ × 60 minutes, and fixed it to the inclined beam, and after changing 6,900 copies by S and Z alternating, the general high-stretchable twisted yarn 300 denier / 96 filament Weaving is carried out in a water jet loom with a weft density of 50T, refined in a rotary washer at 120 ° C for 30 minutes, and caustic soda at 0.1% by weight, and then pre-set at 190 ° C for 1 minute. The dye was again reduced in 95 ° C x 20 minutes in caustic soda 1.5 wt% solution in a circular reducer.

이를 170℃ × 1분으로 최종열고정하여 제품을 얻었다.Final heat was fixed at 170 ° C. × 1 min to obtain a product.

위의 방법으로 제조한 가공사의 물성은 표 1 과 같다.Physical properties of the processed yarn prepared by the above method are shown in Table 1.

실시예 2Example 2

폴리에스테르 미연신사 120데니어/36필라멘트(복굴절율 : 30×10-3)를 연신비 1.05, 히터온도 170℃에서 열처리한후 폴리에스테르 고수축 연신사 75데니어/24필라멘트사와 합사한후 공기압력 3.3kp으로 교락부여하여 가공사를 제조하였다.Polyester unstretched yarn 120 denier / 36 filament (birefringence: 30 × 10 -3 ) is heat-treated at draw ratio 1.05, heater temperature 170 ℃ and then spun with polyester high shrink stretched yarn 75 denier / 24 filament yarn Interlaced to give a processed yarn.

위의 방법으로 제조한 가공사를 1,600개/m으로 연사하여 80℃ × 60분에서 열고정한후 경사빔에 S, Z교호로 7,500본 정경후 일반 고신축 가연사 150데니어/48필라멘트를 위사로 사용하여 위사밀도 65T로 워터제트직기에서 제직하고 로터리워셔에서 120℃ × 25분, 가성소다 0.1중량% 용액에서 정련, 축소후 190℃ × 1분에서 프리세팅한다. 이를 다시 서큘라감량기에서 가성소다 1.5중량%용액에서 95℃ × 20분으로 감량후 염색하였다.After weaving the processed yarn manufactured by the above method at 1,600 pieces / m, heat setting it at 80 ℃ × 60 minutes, and using 7,500 shots with S and Z alternating on the inclined beam, we use 150 denier / 48 filament of general high-stretchable twisted yarn as weft yarn. Weaving is carried out in a water jet loom with a weft density of 65T, refined in a rotary washer at 120 ° C for 25 minutes, and 0.1% by weight of caustic soda, and pre-set at 190 ° C for 1 minute. The dye was again reduced in 95 ° C x 20 minutes in caustic soda 1.5 wt% solution in a circular reducer.

이를 170℃ × 1분으로 최종열고정하여 제품을 얻었다.Final heat was fixed at 170 ° C. × 1 min to obtain a product.

위의 방법으로 제조한 가공사의 물성은 표 1 과 같다.Physical properties of the processed yarn prepared by the above method are shown in Table 1.

실시예 3Example 3

폴리에스테르 미연신사 150데니어/72필라멘트(복굴절율 : 40×10-3)를 연신비 1.05, 히터온도 210℃에서 열처리한후 폴리에스테르 고수축 연신사 100데니어/24필라멘트와 합사한후 공기압력 3.5kp으로 교락부여하여 가공사를 제조하였다.Heat treatment of polyester non-stretched 150 denier / 72 filament (birefringence: 40 × 10 -3 ) at draw ratio 1.05, heater temperature 210 ℃ and plywood with polyester high shrink stretched yarn 100 denier / 24 filament Interlaced to give a processed yarn.

위의방법으로 제조한 가공사를 1,300개/m으로 연사하여 80℃ × 60분에서 열고정한후 경사빔에 S, Z 교호로 7,200본 정경후 일반 고신축 가연사 300데니어/96필라멘트를 위사로 사용하여 위사밀도 50T로 워터제트직기에서 제직하고 로터리워셔에서 120℃ × 30분, 가성소다 0.1중량%용액에서 정련, 축소후 190℃ × 1분에서 프리세팅한다. 이를 다시 서큘라감량기에서 가성소다 1.5중량%용액에서 95℃ × 20분으로 감량후 염색하였다.After weaving the processed yarn manufactured by the above method at 1,300 pieces / m, heat setting it at 80 ℃ × 60 minutes, and after setting 7,200 alternating S and Z on the inclined beam, we use 300 denier / 96 filament of general high-stretchable twisted yarn as weft yarn. After weaving in a water jet loom with a weft density of 50T, refining in a rotary washer at 120 ° C for 30 minutes and caustic soda in 0.1% by weight of solution, shrinking and presetting at 190 ° C for 1 minute. The dye was again reduced in 95 ° C x 20 minutes in caustic soda 1.5 wt% solution in a circular reducer.

이를 170℃ × 1분으로 최종열고정하여 제품을 얻었다. 위의 방법으로 제조한 가공사의 물성은 표 1 과 같다.Final heat was fixed at 170 ° C. × 1 min to obtain a product. Physical properties of the processed yarn prepared by the above method are shown in Table 1.

구분division 데니어Denier 강도(g/d)Strength (g / d) 신도(%)Elongation (%) 비수수축율(%)Non-shrinkage rate (%) 건열수축율(%)Dry heat shrinkage (%) 염색성Dyeability 실시예 1Example 1 250250 1.951.95 3535 1717 2323 실시예 2Example 2 180180 2.052.05 4040 1818 2222 실시예 3Example 3 240240 1.901.90 3535 1717 2020 비교예 1Comparative Example 1 250250 2.102.10 4040 2323 3030 ××

염색성 양호 : ○, 염색성 보통 : △, 염색성 불량 : ×Good dyeing: ○, normal dyeing: △, poor dyeing: ×

본 발명은 제조된 복합가공사의 표면이 평할하기 때문에 연사(twisting)할 때 종래의 것처럼 루프의 발현으로 인한 연사작업성을 해치지 않으며 또 염색시에 2 종의 원사를 사용함에 따르는 염색차를 일으키지 않을 뿐만아니라 후가공시에 다층구조를 형성시켜서 촉감이 부드럽고 숭고성이 풍부해진다.The present invention does not impair the yarn workability due to the expression of the loop as conventional when twisting because the surface of the manufactured composite processing is flat and does not cause the dyeing difference by using two kinds of yarns in dyeing. In addition, by forming a multi-layer structure during post-processing, the touch is soft and rich in sublime properties.

Claims (1)

복굴절율이 30 ∼ 70 × 10-3인 폴리에스테르 미연신사를 150 ∼ 210℃로 열처리하면서 1.0 ∼ 1.15배로 연신한 다음에 고수축성 폴리에스테르 연신사와 합사시킨후, 이것을 3.0 ∼ 3.8kg/cm2의 공기압으로 공기교락시켜서 권취함을 특징으로 하는 폴리에스테르 복합가공사의 제조방법.After stretching the polyester undrawn yarn having a birefringence of 30 to 70 × 10 -3 at 1.0 to 1.15 times while heat-processing at 150 to 210 ° C., and then blending it with the highly shrinkable polyester drawn yarn to obtain 3.0 to 3.8 kg / cm 2 . A method for producing a polyester composite workpiece, which is wound by air entanglement with air pressure.
KR10-1998-0056949A 1998-12-21 1998-12-21 Manufacturing method of polyester composite processing KR100467345B1 (en)

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