KR20230039950A - Method Of Manufacturing Cotton-Like Recycled Polyester Draw-Textured Yarn Having Excellent Bulkiness And Flexibility - Google Patents
Method Of Manufacturing Cotton-Like Recycled Polyester Draw-Textured Yarn Having Excellent Bulkiness And Flexibility Download PDFInfo
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- 229920000728 polyester Polymers 0.000 title claims abstract description 64
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000002131 composite material Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- 229920001225 polyester resin Polymers 0.000 claims description 7
- 239000004645 polyester resin Substances 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 238000009734 composite fabrication Methods 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 12
- 229920000742 Cotton Polymers 0.000 abstract description 8
- 239000005445 natural material Substances 0.000 abstract description 5
- 238000009987 spinning Methods 0.000 description 11
- 239000004744 fabric Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 229920000426 Microplastic Polymers 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 241000282994 Cervidae Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
- D02G3/045—Blended or other yarns or threads containing components made from different materials all components being made from artificial or synthetic material
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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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
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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
- D01D5/096—Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes
-
- 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
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying 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
- D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
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- Fluid Mechanics (AREA)
- Thermal Sciences (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
본 발명은 리사이클 폴리에스테르를 이용한 POY 및 SDY 소재를 사용하여 천연 소재인 Cotton과 유사한 벌키성 및 유연성이 우수한 cotton-like 리사이클 폴리에스테르 복합가연가공사의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a cotton-like recycled polyester composite false twist yarn having excellent bulkiness and flexibility similar to cotton, a natural material, by using POY and SDY materials using recycled polyester.
오늘날 과학기술의 발달과 대량생산체제에서 비롯된 물질적 풍요는 불과 1세기 만에 자원고갈, 환경오염, 지구온난화, 생태계 파괴와 같은 심각한 폐해를 낳게 되었으며, 이로 인해 전 세계적으로 인간과 환경의 공존을 위한 공감대가 형성되어 친환경 소재, 한정된 자원의 재활용 및 환경오염 최소화를 위한 친환경제품 및 공정개발이 전 세계적인 기류가 되고 있다.Today's material abundance resulting from the development of science and technology and the mass production system has resulted in serious harms such as resource depletion, environmental pollution, global warming, and ecosystem destruction in just one century. A consensus has been formed that the development of eco-friendly products and processes for eco-friendly materials, recycling of limited resources and minimization of environmental pollution is becoming a global trend.
특히, 유럽화학물질청(European CHemical Agency, ECHA)에서는 2019년 1월에 의도적으로 첨가된 미세플라스틱에 대한 "제한물질 지정 제안 보고서"를 발표하였으며, EU는 물론 국내에서도 미세플라스틱의 유해성과 위해성 평가, 사용 및 발생억제를 위한 연구개발 투자가 증가되고 있는 등 가까운 미래에 관련 규제가 본격적으로 도입될 것으로 보인다.In particular, the European Chemicals Agency (ECHA) published a "Restricted Substance Designation Proposal Report" for intentionally added microplastics in January 2019, and evaluated the harmfulness and risks of microplastics in the EU as well as in Korea. In the near future, it is expected that related regulations will be introduced in earnest, as R&D investment for use and control of occurrence is increasing.
한편, 천연 질감 중에서 특히 Cotton-like 합섬소재는 기존 cotton의 단점인 내마모성, 발한성을 극복하면서 장점인 보온성, 흡수성, 촉감은 유지하고, 세탁 등에 대한 관리가 용이해지면서 사용량이 급증하고 있는 추세이다. On the other hand, among natural textures, cotton-like synthetic fibers in particular overcome the disadvantages of cotton, such as abrasion resistance and perspiration, while maintaining the advantages of warmth, absorbency, and touch, and as management for washing becomes easy, the amount of use is rapidly increasing. .
이러한 천연질감 소재를 발현하기 위한 기본적인 기술 Concept은 이형단면사의 개발 및 알칼리 감량가공기술을 적용한 견 섬유를 모방하는 기술이 적용된 후, 섬유들의 수축차를 이용한 다양한 기술이 등장하면서 고수축사와 저수축사의 혼섬에 의해 직물에 미세한 루프를 발현시켜 우수한 촉감과 느낌을 제공하는 제품으로 전개되어 오고 있다.The basic technology concept for expressing such a natural texture material is the development of deformed cross-section yarn and the technology to imitate silk fiber with alkali reduction processing technology applied, and various technologies using the difference in shrinkage of fibers have emerged, leading to the emergence of high-shrinkage and low-shrinkage yarns. It has been developed into a product that provides excellent touch and feel by expressing fine loops in the fabric by mixed fibers.
최근 미국·유럽 지역을 중심으로 친환경 트렌드가 핵심 키워드로 자리 잡으면서 생분해나 리사이클 소재의 사용량이 급증하고 있으며, 리사이클 합섬 소재를 사용하면서 기존의 천연소재(cotton)과 유사한 '촉감', '벌키감', '유연성'의 성능을 만족하면서, 가격 경쟁력을 가질 수 있는 소재에 대한 개발 요구가 확대되고 있으나, 면과 유사한 '촉감', '벌키감', '유연성'이 우수한 제품을 개발하지는 못하고 있는 실정이다. Recently, as the eco-friendly trend has become a key keyword, mainly in the US and Europe, the use of biodegradable or recycled materials is rapidly increasing, and while using recycled synthetic fibers, 'tactile' and 'bulky' similar to existing natural materials (cotton) ', 'flexibility' performance, while satisfying the demand for the development of materials that can have price competitiveness is expanding. The situation is.
그러므로 본 발명에 의하면 리사이클 폴리에스테르를 이용한 POY 및 SDY 소재를 사용하여 천연 소재인 Cotton의 장점인 촉감, 유연성, 벌키성을 최대로 발현하기 위한 멀티필라멘트 복합가연가공사를 제공하는 것을 기술적과제로 한다.Therefore, according to the present invention, it is a technical task to provide a multifilament composite false twist fabric for maximizing the tactile feel, flexibility, and bulkiness, which are the advantages of cotton, which is a natural material, by using POY and SDY materials using recycled polyester.
그러므로 본 발명에 의하면, 리사이클 폴리에스테르 POY 필라멘트와 리사이클 폴리에스테르 SDY 필라멘트를 크릴파이프를 통해 제1피드롤러로 공급하여 170~190℃로 제1차히터에서 제1차열처리한 후, Therefore, according to the present invention, the recycled polyester POY filament and the recycled polyester SDY filament are supplied to the first feed roller through the creel pipe and subjected to the first heat treatment in the first heater at 170 to 190 ° C.
쿨링플레이트를 통과시키면서 냉각시키고, Cooling while passing through a cooling plate,
디스크식 가연기를 통과시켜 가연을 하고 제2피드롤러를 통과시킨 후, After passing through the disk-type combustor to combust and pass through the second feed roller,
인터레이스노즐의 구경 1.6~1.8 ㎜, 에어압 1.5~2.0kg/㎠으로 인터레이스하고 150~170℃로 제2차히터에서 제2차열처리한 후 제3피드롤러를 통과시킨 후 오일링하는 것을 특징으로 하는 벌키성 및 유연성이 우수한 cotton-like 리사이클 폴리에스테르 복합가연가공사의 제조방법이 제공된다.Interlaced with an interlaced nozzle diameter of 1.6 to 1.8 mm and an air pressure of 1.5 to 2.0 kg/cm 2 , subjected to secondary heat treatment in a secondary heater at 150 to 170 ° C, passed through a third feed roller, and then oiled. Provided is a method for producing a cotton-like recycled polyester composite false twist yarn having excellent bulkiness and flexibility.
이하 본 발명을 보다 상세히 설명하기로 한다.Hereinafter, the present invention will be described in more detail.
본 발명의 벌키성 및 유연성이 우수한 cotton-like 리사이클 폴리에스테르 복합가연가공사의 제조방법은 리사이클 폴리에스테르 POY 및 SDY 소재를 사용하여 천연 소재인 Cotton의 장점인 촉감, 유연성, 벌키성을 최대로 발현하기 위한 복합가연사 제조방법으로서 도 1에 도시된 바와 같이, 리사이클 폴리에스테르 POY 필라멘트(1)와 리사이클 폴리에스테르 SDY 필라멘트(2)를 크릴파이프(3)를 통해 제1피드롤러(4)로 공급하여 제1차히터(5)에서 제1차열처리한 후, 쿨링플레이트(6)를 통과시키면서 냉각시키고, 디스크식 가연기(7)를 통과시켜 가연을 하고 제2피드롤러(8)를 통과시킨 후, 인터레이스노즐(9)로 인터레이스하고, 제2차히터(10)에서 제2차열처리한 후 제3피드롤러(11)를 통과시킨 후 오일링롤러(12)로 오일링하고 권취롤러(13)로 권취한다. The manufacturing method of the cotton-like recycled polyester composite false twisted yarn with excellent bulkiness and flexibility of the present invention uses recycled polyester POY and SDY materials to maximize the touch, flexibility and bulkiness, which are the advantages of cotton, a natural material. As shown in FIG. 1, as a composite false-twist yarn manufacturing method for manufacturing, the recycled polyester POY filament (1) and the recycled polyester SDY filament (2) are supplied to the first feed roller (4) through the creel pipe (3) to produce After the first heat treatment in the
본 발명의 복합가연사를 제조하기 위한 원사로는 리사이클 폴리에스테르 POY 필라멘트와 리사이클 폴리에스테르 SDY 필라멘트를 사용한다. As yarns for producing the composite draw-twist yarn of the present invention, recycled polyester POY filaments and recycled polyester SDY filaments are used.
상기 리사이클 폴리에스테르 POY 필라멘트는 고유점도 0.68~0.72인 리사이클폴리에스테르 수지를 325~335℃의 익스트루더로 용융한 후 290~295℃로 가열된 방사구금에 투입하여 방사한 리사이클 폴리에스테르 POY 필라멘트를 사용하는 것이 바람직하다. The recycled polyester POY filament is a recycled polyester POY filament spun by melting recycled polyester resin having an intrinsic viscosity of 0.68 to 0.72 with an extruder at 325 to 335 ° C and then injected into a spinneret heated at 290 to 295 ° C. It is preferable to use
상기 리사이클폴리에스테르 수지는 재생 폴리에스테르 칩(chip)을 사용하는데, chip 상태의 고분자를 이용하여 방사를 진행하게 되면 고온의 용융단계를 거치게 되므로 열분해에 기인한 IV 저하가 발생하게 되고, 또한 칩 내에 수분을 포함하게 되면 물에 의한 가수분해가 가속화되어 IV 저하가 심하게 발생하며 이로 인해 방사시 물성 저하, 사절 등을 야기하게 될 수 있다. 그러므로 방사를 위해서는 준비단계로 건조공정을 거쳐야 한다. 건조온도는 중합물의 2차 전이점과 융점사이에서 결정되며, 24시간 이상 충분히 건조를 진행하며 수분율을 30~50ppm으로 관리하여야 한다. 진공건조기를 이용한 폴리에스테르 칩의 수분 제거를 위해 100~170℃의 온도에서 13시간 정도의 건조 공정을 진행하는 것이 바람직하다. The recycled polyester resin uses a recycled polyester chip, and when spinning is performed using a polymer in a chip state, a high-temperature melting step is performed, resulting in a decrease in IV due to thermal decomposition, and also in the chip. When moisture is included, hydrolysis by water is accelerated, and IV degradation occurs severely, which may cause degradation of physical properties during spinning, thread breakage, and the like. Therefore, for spinning, it is necessary to go through a drying process as a preparation step. The drying temperature is determined between the secondary transition point and the melting point of the polymer, and the drying must be sufficiently conducted for more than 24 hours and the moisture content must be managed at 30 to 50 ppm. It is preferable to proceed with a drying process for about 13 hours at a temperature of 100 ~ 170 ℃ to remove moisture from the polyester chip using a vacuum dryer.
이렇게 건조된 폴리에스테르 칩은 고유점도 0.68~0.72dl/g인 것을 사용하는 것이 일반 폴리에스테르 칩 방사설비를 이용할 수 있어 바람직하다. 방사온도는 290~295℃가 장섬유의 방사성을 높이는 측면에서 바람직하다. It is preferable to use the dried polyester chips having an intrinsic viscosity of 0.68 to 0.72 dl/g because general polyester chip spinning equipment can be used. The spinning temperature is preferably 290 ~ 295 ℃ in terms of increasing the spinnability of the long fibers.
이렇게 본 발명의 원사 중 하나로서 사용되는 리사이클 폴리에스테르 POY 필라멘트는 섬도 80~85d/72f, 강도 3.1~3.5(g/d), 신도 120~125%인 것이 바람직한데, 사가공시 SDY 필라멘트와의 결합을 통해 천연감성을 위해 가연 후 벌키감을 향상시키기 위해 방사되는 리사이클 폴리에스테르 POY 필라멘트는 120~125%의 신도가 좋다.As such, the recycled polyester POY filament used as one of the yarns of the present invention preferably has a fineness of 80 to 85 d/72 f, strength of 3.1 to 3.5 (g/d), and elongation of 120 to 125%. Recycled polyester POY filament, which is spun to improve bulkiness after twisting for natural sensibility, has good elongation of 120~125%.
본 발명에서의 원사 중 다른 하나인 상기 리사이클 폴리에스테르 SDY 필라멘트는 고유점도 0.68~0.72dl/g인 리사이클폴리에스테르 수지를 325~335℃의 익스트루더로 용융한 후 290~300℃로 가열된 방사구금에 투입하여 방사하면서 연신비 3.0~3.3으로 연신한 리사이클 폴리에스테르 SDY 필라멘트인 것이 바람직하다.The recycled polyester SDY filament, which is another one of the yarns in the present invention, is a recycled polyester resin having an intrinsic viscosity of 0.68 to 0.72 dl/g melted with an extruder at 325 to 335 ° C and then heated to 290 to 300 ° C. It is preferably a recycled polyester SDY filament that is put into a spinneret and drawn at a draw ratio of 3.0 to 3.3 while spinning.
상기 리사이클 폴리에스테르 SDY 필라멘트는 상기 리사이클 폴리에스테르 POY 필라멘트의 원료 칩과 동일한 것을 사용하여 방사하는데, 방사시 GR1 및 GR2의 속도차를 이용하여 강도 5g/d 이상의 연신사를 방사하여 사용한다. 일반적인 I.V 0.65 정도의 PET 칩을 사용하게 되면 DR 3 정도의 연신 시 3~4g/d의 강도를 나타내게 되는데 본 발명에서 사용한 리사이클 폴리에스테르 칩은 I.V 0.68~0.72로 연신 시 5g/d 이상의 강도를 가진다. 사가공시 리사이클 폴리에스테르 POY 필라멘트와의 복합을 통해 최종적인 복합가공사의 강도는 3g/d 이상의 강도를 발현할 수 있게 된다. The recycled polyester SDY filament is spun using the same raw material chip as the recycled polyester POY filament. During spinning, a stretched yarn having a strength of 5 g/d or more is spun using a speed difference between GR1 and GR2. When a general PET chip with an I.V of about 0.65 is used, it exhibits strength of 3 to 4 g/d when stretched to about
이렇게 준비된 리사이클 폴리에스테르 POY 필라멘트와 리사이클 폴리에스테르 SDY 필라멘트를 사용하여 복합가연가공사를 제조하게 되는데, 먼저 상기 두가지 원사를 크릴파이프를 통해 제1피드롤러로 공급하여 170~190℃로 제1차히터에서 제1차열처리한다. 제1차히터는 온도가 170~190℃인 것이 바람직한데, 170℃ 미만이면 상대적으로 데니어가 높은 리사이클 폴리에스터 POY 필라멘트의 열 고정이 제대로 이루어지지 않고, 190℃를 초과하면 상대적으로 데니어가 낮은 리사이클 폴리에스터 SDY 필라멘트가 용융되는 문제가 있다. A composite twisted yarn is manufactured using the recycled polyester POY filament and the recycled polyester SDY filament prepared in this way. 1st heat treatment. It is preferable that the temperature of the primary heater is 170 to 190 ° C. If the temperature is less than 170 ° C, the thermal fixation of the recycled polyester POY filament with a relatively high denier is not performed properly, and if it exceeds 190 ° C, the relatively low denier is recycled. There is a problem with the polyester SDY filament melting.
이후 쿨링플레이트를 통과시키면서 냉각시키게 되는데, 냉각의 효율을 높이기 위해 공기가 통과할 수 있는 석션쿨링플레이트를 사용하는 것이 바람직하다. Thereafter, cooling is performed while passing through a cooling plate. In order to increase cooling efficiency, it is preferable to use a suction cooling plate through which air can pass.
이후 디스크식 가연기를 통과시켜 가연을 하고 제2피드롤러를 통과시키는데, 상기 가연시 연신비(D/R)는 1.02~1.09인 것이 바람직한데, 1.02 미만이면 두 원사의 합사 100D를 많이 넘겨 해결하고자 하는 목표 데니어를 넘기게 되고, 1.09를 초과하면 리사이클 폴리에스테르 SDY 필라메트가 사절되는 문제가 있다. Then, the twisting is performed by passing through a disk-type combing machine, and the second feed roller is passed. The draw ratio (D / R) during the twisting is preferably 1.02 to 1.09. It exceeds the target denier, and if it exceeds 1.09, there is a problem that the recycled polyester SDY filament is rejected.
가연비(V/R)는 1.3~1.5인 것이 바람직한데, 1.3 미만이면 벌키성이 낮으며 Cotton-like의 특성 또한 발현되지 않으며, 1.5를 초과하면 높은 벌키성으로 필라멘트의 사절이 쉽게 발생하는 문제가 있다. It is preferable that the combustible ratio (V/R) is 1.3 to 1.5. If it is less than 1.3, the bulkiness is low and the cotton-like characteristics are not expressed, and if it exceeds 1.5, the filament is easily cut due to high bulkiness there is
상기 제1피드롤러와 제2피드롤러간의 오버피드율은 1.0~1.4%인 것이 바람직한데, 오버피드율 1.0%미만이면 과도한 장력에 의해 미해연의 문제점이 발생하고, 1.4%를 초과하면 모우가 발생할 우려가 있다.It is preferable that the overfeed rate between the first feed roller and the second feed roller is 1.0 to 1.4%. If the overfeed rate is less than 1.0%, excessive tension causes a problem of unstretching, and if it exceeds 1.4%, the moose breaks down. may occur.
상기 가연후, 인터레이스노즐의 구경 1.6~1.8 ㎜, 에어압 1.5~1.8kg/㎠으로 인터레이스하여 합사하게 되는데, 에어압이 1.5 kgf/㎠ 미만이면 공급되는 공기의 압력 부족으로 인하여 충분히 교락되기 어렵고, 압력이 1.8kgf/㎠을 초과하면 공급되는 공기의 압력 과다로 인하여 원사끼리 엉켜져서 부분적으로 뭉치는 현상이 발생하게 될 수 있다.After the twisting, the interlacing is performed by interlacing with an interlaced nozzle diameter of 1.6 to 1.8 mm and an air pressure of 1.5 to 1.8 kg/cm2. If the air pressure is less than 1.5 kgf/cm2, it is difficult to entangle sufficiently due to insufficient air pressure, When the pressure exceeds 1.8 kgf/cm 2 , due to the excessive pressure of the supplied air, yarns may become entangled and partially agglomerated.
이후 150~170℃로 제2차히터에서 제2차열처리한 후 제3피드롤러를 통과시킨 후 오일링하고 권취하여 본 발명의 리사이클 폴리에스테르 복합가연가공사를 제조하게 된다. 상기 제2차열처리를 통해 벌키성을 유지시킬 수 있는데 150℃ 미만이면 벌키성이 쉽게 풀어져 Cotton-like의 특성 발현을 어려우며 170℃초과이면 제직시 인터반이 생길 수 있는 문제가 있다. Thereafter, after the second heat treatment in the second heater at 150 ~ 170 ℃, after passing through the third feed roller, oiling and winding, the recycled polyester composite false twist yarn of the present invention is manufactured. Bulkyness can be maintained through the secondary heat treatment, but if the temperature is less than 150 ° C, the bulkiness is easily released, making it difficult to express cotton-like characteristics, and if the temperature exceeds 170 ° C, there is a problem that interban may occur during weaving.
그러므로 본 발명에 의하면, 리사이클 폴리에스테르 POY 및 SDY 소재를 사용하여 천연 소재 Cotton의 장점인 촉감, 유연성, 벌키성을 최대로 발현할 수 있는 리사이클 폴리에스테르 복합가연가공사를 제공할 수 있다. 또한, 가동효율 및 가격경쟁력을 향상시키기 위해서 기존의 폴리에스테르 POY 필라멘트와 SDY 필라멘트를 별도의 공정으로 통해 ITY 소재를 제조하는 단계에서 크릴 2합 리사이클 폴리에스테르 복합가연가공사를 제조함으로써 단계 축소로 인한 원가 절감의 효과를 볼 수 있었다. Therefore, according to the present invention, by using recycled polyester POY and SDY materials, it is possible to provide a recycled polyester composite false twist fabric that can maximize the touch, flexibility, and bulkiness, which are the advantages of natural cotton. In addition, in order to improve operation efficiency and price competitiveness, cost due to step reduction by manufacturing creel 2-component recycled polyester composite twisted fabric in the step of manufacturing ITY material through a separate process using the existing polyester POY filament and SDY filament. savings could be seen.
도 1은 본 발명의 리사이클 폴리에스테르 복합가연가공사의 제조공정의 모식도이며,
도 2는 본 발명에 의해 제조된 리사이클 폴리에스테르 복합가연가공사의 가연부분의 표면사진이며,
도 3은 본 발명에 의해 제조된 리사이클 폴리에스테르 복합가연가공사의 인터레이스부분의 표면사진이다.1 is a schematic view of the manufacturing process of the recycled polyester composite false twisted yarn of the present invention,
Figure 2 is a surface photograph of the twisted portion of the recycled polyester composite twisted fabric manufactured by the present invention,
3 is a photograph of the surface of the interlace portion of the recycled polyester composite false-twist fabrication manufactured according to the present invention.
다음의 실시예에서는 본 발명의 리사이클 폴리에스테르 복합가연가공사를 제조하는 비한정적인 예시를 하고 있다.In the following examples, there is a non-limiting example of manufacturing the recycled polyester composite false twisted yarn of the present invention.
[실시예 1][Example 1]
1. 리사이클 폴리에스테르 POY 필라멘트 방사1. Recycled polyester POY filament spinning
고유점도 0.705dl/g인 리사이클폴리에스테르 수지칩을 진공건조기를 이용하여 100~170℃의 온도에서 13시간 정도의 건조 공정을 진행하여 폴리에스테르 칩의 수분을 제거한 후, 하기 표 1의 조건과 같이 325~335℃의 익스트루더로 용융한 후 일반 폴리에스테르 칩 방사설비의 290~295℃로 가열된 방사구금에 투입하여 리사이클 폴리에스테르 POY 필라멘트(80d/72f)를 방사하였다.Recycled polyester resin chips having an intrinsic viscosity of 0.705 dl/g are dried using a vacuum dryer at a temperature of 100 to 170 ° C for about 13 hours to remove moisture from the polyester chips, as shown in Table 1 below. After melting with an extruder at 325 ~ 335 ℃, recycled polyester POY filament (80d / 72f) was spun by putting it into a spinneret heated at 290 ~ 295 ℃ of general polyester chip spinning equipment.
Temp(℃)Extruder
Temp(℃)
물성yarn
Properties
2. 리사이클 폴리에스테르 SDY 필라멘트 방사2. Recycled Polyester SDY Filament Spinning
상기 리사이클 폴리에스테르 POY 필라멘트 방사와 동일하게 하되, 하기 표 2의 조건을 상이하게 하여 리사이클 폴리에스테르 SDY 필라멘트(30d/24f)를 방사하였다.Recycled polyester SDY filament (30d/24f) was spun in the same manner as the recycled polyester POY filament spinning, but under different conditions in Table 2 below.
Temp(℃)Extruder
Temp(℃)
물성yarn
Properties
3. 리사이클 폴리에스테르 복합가연가공사 제조3. Manufacture of recycled polyester composite fabrication
상기 리사이클 폴리에스테르 POY 필라멘트와 리사이클 폴리에스테르 SDY 필라멘트를 크릴파이프를 통해 제1피드롤러로 공급하여 하기 표 3의 조건에 따라 제1차히터에서 제1차열처리한 후, 쿨링플레이트를 통과시키면서 냉각시키고, 디스크식 가연기를 통과시켜 가연을 하고 오버피드율 1.3%로 제2피드롤러를 통과시킨 후, 인터레이스노즐의 구경 1.8 ㎜, 에어압 1.7kg/㎠으로 인터레이스하고 , 제2차히터에서 제2차열처리한 후 제3피드롤러를 통과시킨 후 오일링한 후 권취하여 복합가연가공사를 제조하였다. 제조된 복합가연가공사의 물성은 하기 표 4에 나타내었다.The recycled polyester POY filament and the recycled polyester SDY filament were supplied to the first feed roller through a creel pipe, subjected to first heat treatment in the first heater according to the conditions of Table 3, and then cooled while passing through a cooling plate. , Combustion is carried out by passing through a disk-type combustor, and after passing through the second feed roller with an overfeed rate of 1.3%, interlacing is performed with an interlaced nozzle diameter of 1.8 mm and an air pressure of 1.7 kg / ㎠, and the secondary heater After heat treatment, it was passed through the third feed roller, oiled, and then wound to produce a composite twisted yarn. The physical properties of the manufactured composite false twisting fabric are shown in Table 4 below.
1:리사이클 폴리에스테르 POY 필라멘트
2:리사이클 폴리에스테르 SDY 필라멘트
3:크릴파이프
4：제1피드롤러
5:제1차히터
6:쿨링플레이트
7:디스크식 가연기
8:제2피드롤러
9:인터레이스노즐
10：제2차히터
11：제3피드롤러
12：오일링롤러
13：권취롤러1: recycled polyester POY filament
2: recycled polyester SDY filament
3: creel pipe 4: first feed roller
5: Primary heater 6: Cooling plate
7: disk type combustor 8: 2nd feed roller
9: Interlace nozzle 10: Secondary heater
11: 3rd feed roller 12: oiling roller
13: take-up roller
Claims (4)
쿨링플레이트를 통과시키면서 냉각시키고,
디스크식 가연기를 통과시켜 가연을 하고 제2피드롤러를 통과시킨 후,
인터레이스노즐의 구경 1.6~1.8 ㎜, 에어압 1.5~1.8kg/㎠으로 인터레이스하고, 150~170℃로 제2차히터에서 제2차열처리한 후 제3피드롤러를 통과시킨 후 오일링하는 것을 특징으로 하는 벌키성 및 유연성이 우수한 cotton-like 리사이클 폴리에스테르 복합가연가공사의 제조방법.The recycled polyester POY filament and the recycled polyester SDY filament are supplied to the first feed roller through a creel pipe and subjected to the first heat treatment in the first heater at 170 to 190 ° C,
Cooling while passing through a cooling plate,
After passing through the disk-type combustor to combust and pass through the second feed roller,
It is characterized by interlacing with an interlaced nozzle diameter of 1.6 ~ 1.8 mm and an air pressure of 1.5 ~ 1.8 kg / ㎠, second heat treatment in the second heater at 150 ~ 170 ℃, and oiling after passing through the third feed roller Manufacturing method of cotton-like recycled polyester composite false-twist yarn with excellent bulkiness and flexibility.
상기 리사이클 폴리에스테르 POY 필라멘트는 고유점도 0.68~0.72dl/g인 리사이클폴리에스테르 수지를 325~335℃의 익스트루더로 용융한 후 290~295℃로 가열된 방사구금에 투입하여 방사한 리사이클 폴리에스테르 POY 필라멘트이며,
상기 리사이클 폴리에스테르 SDY 필라멘트는 고유점도 0.68~0.72dl/g인 리사이클폴리에스테르 수지를 325~335℃의 익스트루더로 용융한 후 290~300℃로 가열된 방사구금에 투입하여 방사하면서 연신비 3.0~3.3으로 연신한 리사이클 폴리에스테르 SDY 필라멘트인 것을 특징으로 하는 벌키성 및 유연성이 우수한 cotton-like 리사이클 폴리에스테르 복합가연가공사의 제조방법.According to claim 1,
The recycled polyester POY filament is recycled polyester resin spun by melting recycled polyester resin having an intrinsic viscosity of 0.68 to 0.72 dl/g with an extruder at 325 to 335 ° C and then injected into a spinneret heated at 290 to 295 ° C. It is a POY filament,
The recycled polyester SDY filament melts recycled polyester resin having an intrinsic viscosity of 0.68 to 0.72 dl/g with an extruder at 325 to 335 ° C, and then puts it into a spinneret heated at 290 to 300 ° C. Method for producing a cotton-like recycled polyester composite false-twist yarn having excellent bulkiness and flexibility, characterized in that the recycled polyester SDY filament stretched in 3.3.
상기 제1피드롤러와 제2피드롤러간의 오버피드율은 1.0~1.4%인 것을 특징으로 하는 벌키성 및 유연성이 우수한 cotton-like 리사이클 폴리에스테르 복합가연가공사의 제조방법.According to claim 1,
The overfeed rate between the first feed roller and the second feed roller is 1.0 to 1.4%.
상기 가연시 연신비(D/R)는 1.02~1.09, 가연비(V/R)는 1.3~1.5, 사속은 400~450(m/min)인 것을 특징으로 하는 벌키성 및 유연성이 우수한 cotton-like 리사이클 폴리에스테르 복합가연가공사의 제조방법.According to claim 1,
The stretch ratio (D / R) during twisting is 1.02 to 1.09, the combustible ratio (V / R) is 1.3 to 1.5, and the yarn speed is 400 to 450 (m / min). Cotton-like excellent in bulkiness and flexibility, characterized in that Manufacturing method of recycled polyester composite fabrication process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020210122928A KR102557217B1 (en) | 2021-09-15 | 2021-09-15 | Method Of Manufacturing Cotton-Like Recycled Polyester Draw-Textured Yarn Having Excellent Bulkiness And Flexibility |
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| JPS60259619A (en) * | 1984-06-06 | 1985-12-21 | Teijin Ltd | Manufacture of polyester fiber |
| KR100653124B1 (en) * | 2006-01-24 | 2006-12-04 | 도레이새한 주식회사 | Polyethylene terephthalate partially oriented and draw textured yarn and manufacturing method thereof |
| KR100735204B1 (en) * | 2006-08-31 | 2007-07-03 | 한국섬유개발연구원 | Process of producing pet poy multi-twisted yarn and yarn produced thereby |
| KR20090113977A (en) * | 2008-04-29 | 2009-11-03 | 엑스플로어(주) | Process Of Producing Polyester Draw Textured Yarn Having Spun-like Effect |
| KR20150134642A (en) | 2014-05-22 | 2015-12-02 | 한두흠 | Composite textured yarn is comprising the re-cycle PET yarn and method for weaving the textile used it |
| KR102232005B1 (en) * | 2019-11-17 | 2021-03-25 | 한국섬유개발연구원 | Composite yarn having a fine melange effect and manufacturing method thereof |
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2021
- 2021-09-15 KR KR1020210122928A patent/KR102557217B1/en active IP Right Grant
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60259619A (en) * | 1984-06-06 | 1985-12-21 | Teijin Ltd | Manufacture of polyester fiber |
| KR100653124B1 (en) * | 2006-01-24 | 2006-12-04 | 도레이새한 주식회사 | Polyethylene terephthalate partially oriented and draw textured yarn and manufacturing method thereof |
| KR100735204B1 (en) * | 2006-08-31 | 2007-07-03 | 한국섬유개발연구원 | Process of producing pet poy multi-twisted yarn and yarn produced thereby |
| KR20090113977A (en) * | 2008-04-29 | 2009-11-03 | 엑스플로어(주) | Process Of Producing Polyester Draw Textured Yarn Having Spun-like Effect |
| KR20150134642A (en) | 2014-05-22 | 2015-12-02 | 한두흠 | Composite textured yarn is comprising the re-cycle PET yarn and method for weaving the textile used it |
| KR102232005B1 (en) * | 2019-11-17 | 2021-03-25 | 한국섬유개발연구원 | Composite yarn having a fine melange effect and manufacturing method thereof |
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| KR102557217B1 (en) | 2023-07-20 |
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