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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 28. Отображено 28.
09-12-2022 дата публикации

고강력 타이어 딥코드

Номер: KR20220163182A
Автор: 임기섭, 박성호, 유승민
Принадлежит:

... 본 명세서에는, 폴리에스테르 멀티필라멘트와 이에 함침된 접착층을 포함하고, 10.0 g/d의 이상의 평균 인장 강도, 14.0% 이상의 평균 신율, 및 7% 이하의 건열 수축율을 갖는, 고강력 타이어 딥코드가 개시된다.

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03-08-2018 дата публикации

METHOD AND APPARATUS FOR MANUFACTURING POLYSTER YARN HAVING HIGH STRENGTH

Номер: KR1020180088206A
Принадлежит:

One embodiment of the present invention provides a method for manufacturing polyster yarn, which comprises the following steps: forming a plurality of filaments by discharging a melted polyester resin using a spinneret; cooling the filaments; focusing the cooled filaments to form multifilaments; stretching the multifilament; and winding the stretched multifilament, wherein the spinneret has a spinning area per denier of 40 to 80 mm^2. An embodiment of the present invention is to provide the method for manufacturing the polyster yarn, capable of improving the strength of the polyester yarn by eliminating cooling imbalance of the filaments. COPYRIGHT KIPO 2018 ...

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10-07-2015 дата публикации

SECURITY FIBER CONTAINING MULTICOMPONENT SPINNING FIBER, AND ARTICLE FOR PREVENTING FORGERY USING THE SAME

Номер: KR0101535111B1
Принадлежит: 한국생산기술연구원

... 본 발명은 다중복합방사 섬유로 이루어진 보안사 및 그를 이용한 보안용품에 관한 것이다. 본 발명의 다중복합방사 섬유로 이루어진 보안사는 적어도 1종 이상의 폴리머 소재에, IR 반응형 안료 또는 IR 흡수형 안료에서 선택되는 제1성분, 가시적 안료 또는 비가시적 UV 반응 형광안료에서 선택되는 제2성분 및 엑스선 흡수물질에서 선택되는 제3성분을 함유함으로써, 적외선, 자외선 파장별 식별이 가능할 뿐 아니라, 엑스선 조사시 용이하게 식별 가능하여 다중식별이 가능한 수단을 채용하고 있으므로, 위조방지용도에 유용하다. 이에, 본 발명의 다중복합방사 섬유로 이루어진 보안사는 지폐, 상품권, 유가증권, 여권 등의 위조방지용도 또는 고가명품 모방방지용도 또는 군사용 피아식별 용도에 유용하게 적용할 수 있다.

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17-09-2018 дата публикации

고강도 PET 섬유 제조용 방사노즐장치

Номер: KR0101899421B1

... 본 발명은 고강도 PET 섬유 제조용 방사노즐장치에 관한 것이다. 본 발명은 방사노즐의 방사용 홀을 팩바디 외부에 위치시키고 별도의 가열체를 이용하여 팩바디 보다 높은 온도로 가열함으로써 용융상 고분자내 분자쇄 얽힘 구조를 제어하여 PET 섬유의 강도 및 신도 등의 기계적 물성을 개선하고, 가열체의 고온이 팩바디에 열전달 되어 온도를 상승시키는 것을 최소화함으로써 팩바디 내 용융 고분자의 열화로 인한 물성저하를 방지할 수 있다. 또한 본 발명의 방사장치는 실제 상용화되는 방사노즐 설계와 용융방사공정 및 연신공정의 기존 공정을 활용하면서 연신성을 개선하므로, 저비용으로 고성능의 섬유를 대량생산할 수 있다.

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09-12-2022 дата публикации

고강력 폴리에스테르 원사 및 타이어 코드

Номер: KR20220163184A
Автор: 임기섭, 박성호, 유승민
Принадлежит:

... 본 명세서에는, 10.7 g/d 이상의 평균 인장 강도, 12.0% 이상의 평균 신율, 및 130g/d 이상의 영률(young's modulus) 를 갖는 타이어 코드용 고강력 폴리에스테르 원사가 개시된다.

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15-09-2016 дата публикации

METHOD FOR PREPARING HIGH-STRENGTH SYNTHETIC FIBER, AND HIGH-STRENGTH SYNTHETIC FIBER PREPARED THEREBY

Номер: WO2016144105A1
Принадлежит:

The present invention relates to a method for preparing a high-strength synthetic fiber, and a high-strength synthetic fiber prepared thereby. The present invention optimizes a localized heating method when a spinning nozzle falls vertically during spinning in a melt spinning process, wherein all fibers to be spun directly under the spinning nozzle are indirectly heated by uniformly transferring a high temperature heat thereto, and particularly, a heat transfer method is optimized by dually heating the fibers in the vicinity of the hole of the spinning nozzle and directly under the spinning nozzle, thereby improving stretchability by controlling the entangled structure of molecular chains in a molten polymer by instantaneous localized high-temperature heating, and the mechanical properties of the obtained fiber such as strength and elongation are improved since the stretchability of the spun fiber is increased. In addition, the preparation method of the present invention improves mechanical ...

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01-08-2017 дата публикации

SPINNING NOZZLE FOR PRODUCING HIGH STRENGTH FIBER

Номер: KR1020170088154A
Принадлежит:

The present invention relates to a spinning nozzle for producing a high strength fiber. According to the present invention, a local heating method is optimized when a spinning nozzle is made to directly fall after performing spinning in a dissolving composite spinning process, and all fibers spun right under the spinning nozzle are indirectly and uniformly heated with high temperature heat. In particular, a fiber is dually heated around a hole of the spinning nozzle and right under the spinning nozzle, and thus a heat transfer method is optimized. Accordingly, a molecular chain tangling structure in a dissolved phase polymer is controlled by instant high temperature heating, and mechanical properties of strength and elongation of a thermoplastic polymer fiber are improved. Furthermore, the mechanical properties of the spinning nozzle of the present invention are improved while a spinning nozzle which is practically commercialized is designed and a conventional process such as a dissolving ...

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23-06-2016 дата публикации

METHOD FOR MANUFACTURING HIGH STRENGTH POLYESTER FIBER

Номер: KR101632636B1

The present invention relates to a method for manufacturing a high strength polyester fiber. According to the present invention, all fibers to be spun from vertical lowering of a spinning nozzle are indirectly and uniformly heated with high temperature heat transfer while optimizing a local heating method in vertical lowering of the spinning nozzle after spinning in a melt complex spinning process, a heat transfer method is optimized by double heating a filament fiber in the vicinity of a hole around the spinning nozzle and in vertical lowering of the spinning nozzle, so mechanical properties such as strength and elongation of a polyester fiber is improved due to control of a molecular chain entangled structure in a melted polymer by instantaneous high temperature heating. Moreover, the method according to the present invention improves the mechanical properties while using a design of a physically commercialized spinning nozzle and a conventional process of a melt spinning process and ...

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28-03-2019 дата публикации

HIGH-STRENGTH POLYETHYLENE TEREPHTHALATE FIBER AND MANUFACTURING METHOD THEREFOR

Номер: WO2019059560A1
Принадлежит:

Disclosed are a PET fiber having an intrinsic viscosity of 1.1 dl/g or higher and a tensile strength of 10 g/d or higher and a manufacturing method therefor. A manufacturing method according to the present invention comprises the steps of: melting a PET chip having an intrinsic viscosity of 1.4 to 1.7 dl/g to prepare a spinning melt; discharging the spinning melt through a nozzle of a spinning pack; heating the spinning melt by means of a heat source of 300 to 500°C located just below the nozzle immediately before discharge from the nozzle; collecting multiple filaments formed in the discharging step in a multifilament yarn; and drawing the multifilament yarn, wherein the spinning pack is maintained at a temperature of 280 to 305°C.

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01-08-2017 дата публикации

PRODUCTION METHOD OF SYNTHETIC FIBERS HAVING IMPROVED PRODUCTIVITY USING LOCAL HEATING OF SPINNING NOZZLE

Номер: KR1020170088148A
Принадлежит:

The present invention relates to a production method of synthetic fibers having improved productivity by the local heating near a spinning nozzle. According to the present invention, in a melt-spinning process, fibers which are discharged from the spinning nozzle in a form of fibers pass through a nozzle heating unit disposed directly below the spinning nozzle and are locally heated directly or indirectly within a short time, and thus the spinning speed or the stretching speed is increased to improve the production speed in a spinning region or a stretching region. Additionally, an equipment structure for the above-mentioned local heating is relatively small and simple, so that the energy efficiency is high and the productivity can be improved while the variation of the cross-sectional area and the physical properties of the fibers are small. COPYRIGHT KIPO 2017 ...

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17-01-2018 дата публикации

방사노즐의 국부가열에 의해 생산성이 향상된 합성섬유의 제조방법

Номер: KR0101819659B1
Принадлежит: 한국생산기술연구원

... 본 발명은 방사노즐부근의 국부가열에 의해 생산성이 향상된 합성섬유의 제조방법에 관한 것이다. 본 발명은 용융방사공정에서 방사노즐로부터 섬유상으로 토출되는 섬유가 방사노즐 직하에 배치된 노즐가열부를 통과하면서 짧은 시간 내에 직간접으로 국부가열되도록 함으로써, 방사속도 또는 연신속도가 상승되어 방사영역 또는 연신영역에서 생산속도가 향상되고, 상기의 국부가열하는 장비 구조가 상대적으로 작고 간단하여 에너지 효율이 높고 섬유의 단면 변동율 및 물성편차가 적으면서 생산성을 향상시킬 수 있다.

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09-11-2017 дата публикации

SPINNING NOZZLE DEVICE FOR MANUFACTURING HIGH-STRENGTH FIBER

Номер: WO2017191916A1
Принадлежит:

The present invention relates to a spinning nozzle device for manufacturing a high-strength fiber. According to the present invention, a spinning hole of a spinning nozzle is disposed outside a pack body and heated at a higher temperature than that of the pack body by using a separate heating body. Therefore, the device can control an entanglement structure of molecular chains in a molten polymer to improve thermoplastic polymer fibers in mechanical properties, such as strength and elongation, and can minimize temperature elevation attributed to the heat transfer of a high temperature of the heating body to the pack body to prevent the degradation of mechanical properties due to the deterioration of the molten polymer in the pack body. Further, while using the actually commercial spinning nozzle design and existing processes for melt spinning and extension, the spinning nozzle device of the present invention can lower a melt viscosity of a resin, delay a cooling rate of a fiber, and improve ...

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02-01-2018 дата публикации

SPINNING NOZZLE DEVICE TO PRODUCE HIGH STRENGTH POLYETHYLENE TEREPHTHALATE (PET) FIBERS

Номер: KR1020180000148A
Принадлежит:

The present invention relates to a spinning nozzle device to produce high strength polyethylene terephthalate (PET) fibers. To this end, a spinning hole on a spinning nozzle is positioned on the outside of a pack body, and then is heated at a temperature higher than the pack body using an additional heating body, so as to control a molecular chain-entangled structure in a molten polymer, thereby improving mechanical properties of the PET fibers such as elongation and strength. By minimizing a rise in the temperature as high heat from the heating body is delivered to the pack body, it is possible to prevent reduction in physical properties due to deterioration of the molten polymer in the pack body. In addition, the spinning nozzle device of the present invention is capable improving stretchability while applying existing processes such as a stretching process and a melt spinning process in addition to a spinning nozzle designs which are actually commercialized, thereby enabling mass-production ...

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16-11-2017 дата публикации

고강도 섬유 제조용 방사노즐장치

Номер: KR0101798529B1
Принадлежит: 한국생산기술연구원

... 본 발명은 고강도 섬유 제조용 방사노즐장치에 관한 것이다. 본 발명은 방사노즐의 방사용 홀을 팩바디 외부에 위치시키고 별도의 가열체를 이용하여 팩바디 보다 높은 온도로 가열함으로써 용융상 고분자내 분자쇄 얽힘 구조를 제어하여 열가소성 고분자 섬유의 강도 및 신도 등의 기계적 물성을 개선하고, 가열체의 고온이 팩바디에 열전달 되어 온도를 상승시키는 것을 최소화함으로써 팩바디 내 용융 고분자의 열화로 인한 물성저하를 방지할 수 있다. 또한 본 발명의 방사노즐장치는 실제 상용화되는 방사노즐 설계와 용융방사공정 및 연신공정의 기존 공정을 활용하면서 수지의 용융점도를 낮추고 섬유의 냉각속도를 지연함과 동시에 연신성을 개선하므로, 저비용으로 고성능의 섬유를 대량생산할 수 있다.

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08-06-2015 дата публикации

METHOD FOR MANUFACTURING EXTRUSION-MOLDED PRODUCT HAVING MULTIU-COATED MICROPATTERNS

Номер: KR1020150062404A
Автор: LIM, KI SUP, HONG, JOO PYO
Принадлежит:

A manufacturing method of an extrusion-molded product comprises: manufacturing the extrusion-molded product formed with a micropattern; multi-coating materials with different refractive indices on the surface of the extrusion-molded product formed with the micropattern; and secondary coating on the multi-coated extrusion-molded product. Therefore, incident light is variously reflected from the multi-coated micropattern, and various colors and designs can be represented on the surface of the extrusion-molded product. COPYRIGHT KIPO 2015 (AA) Start (BB) End (S10) Manufacturing process of extrusion-molded product having micro patterns formed (S20) Multi-coating process on the extrusion-molded product with materials having different refractive indexes (S30) Second coating process on the multi-coated extrusion-molded product ...

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01-08-2017 дата публикации

METHOD FOR PRODUCING HIGH STRENGTH SYNTHETIC FIBER USING HIGH MOLECULAR WEIGHT THERMOPLASTIC RESIN, AND HIGH STRENGTH SYNTHETIC FIBER PRODUCED THEREFROM

Номер: KR1020170088151A
Принадлежит:

The present invention relates to a method for producing a high strength synthetic fiber using a high molecular weight thermoplastic resin, and a high strength synthetic fiber produced therefrom. According to a high molecular weight thermoplastic resin, a fiber in a dissolved state before solidification is heated around a hole of a spinning nozzle and right under the spinning nozzle in a dissolving spinning process, and thus a heat transfer method is optimized. Accordingly, a dissolving viscosity is effectively reduced without reducing a molecular weight. A nozzle shearing pressure level of a high molecular weight thermoplastic resin which has not been conventionally able to be spun due to high sharing pressure is reduced to a level which can be spun under a nozzle hole condition without reducing a molecular weight. A molecular chain tangling structure in a dissolved phase polymer is controlled, and mechanical properties such as strength and elongation can be improved. Furthermore, viscosity ...

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17-01-2018 дата публикации

고강도 섬유 제조용 방사 노즐

Номер: KR0101819668B1
Принадлежит: 한국생산기술연구원

... 본 발명은 고강도 섬유 제조용 방사노즐에 관한 것이다. 본 발명은 용융복합 방사공정에서 방사 후 방사노즐 직하시 국부 가열방식을 최적화하되, 방사노즐 직하에서 방사되는 모든 섬유에 균일하게 고온의 열전달을 간접적으로 가열하고, 특히, 방사노즐의 홀 부근과 방사노즐의 직하에서 섬유를 이중으로 가열하여 열전달 방식을 최적화함으로써, 순간 고온 가열에 의해 용융상 고분자내 분자쇄 얽힘 구조를 제어하여 열가소성 고분자 섬유의 강도 및 신도 등의 기계적 물성을 개선한다. 또한, 본 발명의 방사노즐은 실제 상용화되는 방사노즐 설계와 용융방사공정 및 연신공정의 기존 공정을 활용하면서 기계적 물성을 개선하므로, 저비용으로 고성능의 섬유를 대량생산할 수 있으며, 방사속도 및 연신속도 증가에 의한 생산성 향상, 및 분자량 저하없이 용융점도를 낮출수 있어 고분자량의 수지의 방사가 가능하여 고강도 섬유를 제조할 수 있다.

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19-12-2017 дата публикации

고분자량의 열가소성 수지를 이용한 고강도 합성섬유의 제조방법 및 그로부터 제조된 고강도 합성섬유

Номер: KR0101810168B1
Принадлежит: 한국생산기술연구원

... 본 발명은 고분자량의 열가소성 수지를 이용한 고강도 합성섬유의 제조방법 및 그로부터 제조된 고강도 합성섬유에 관한 것이다. 본 발명의 제조방법은 고분자량의 열가소성 수지를 용융방사공정에서 방사노즐의 홀 부근과 방사노즐의 직하에서 고화 전 용융상태의 섬유를 가열하여 열전달 방식을 최적화함으로써 용융점도를 분자량 저하없이 효과적으로 낮춤으로써, 종래에는 높은 전단앞으로 방사할 수 없었던 노즐 홀 조건에서 고분자량 열가소성 수지를 분자량 저하없이 방사 가능한 수준으로 노즐 전단압을 낮추고, 용융상 고분자 내 분자쇄 얽힘 구조를 제어하여 강도 및 신도 등의 기계적 물성을 개선할 수 있다. 또한, 노즐 홀내 용융상의 수지의 점도를 분자량 저하 없이 효과적으로 낮춤으로써, 기존대비 방사 노즐의 사용주기가 길어지고, 보다 높은 전단속도 및 L/D의 홀 스펙을 갖는 방사노즐로 방사가 가능하여 방사 드래프트(방사 장력)를 낮출 수 있어 방사 작업성 및 섬유 물성, 품질 등의 추가적인 개선이 가능하다. 나아가 본 발명의 제조방법으로부터 실제 상용화되는 방사노즐 설계와 용융방사공정 및 연신공정의 기존 공정을 활용하면서 기계적 물성을 개선하므로, 저비용으로 고성능의 섬유를 대량생산할 수 있다.

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03-08-2018 дата публикации

APPARATUS FOR PRODUCING HIGH STRENGTH POLYESTER YARN AND PRODUCTION METHOD THEREOF

Номер: KR1020180088207A
Принадлежит:

According to an embodiment of the present invention, provided are an apparatus for producing a polyester yarn and a method for producing the polyester yarn. To this end, the apparatus comprises: a spinneret having a plurality of discharge holes for discharging a molten polyester resin; a heating part for heating a plurality of filaments formed as the motel polyester resin is discharged from the plurality of discharge holes; and a cooling part for cooling the plurality of heated filaments. The heating part includes a heating wire and an insulation member disposed between the heating wire and the cooling part, and the heating wire is extended by crossing over a path that the plurality of filaments move to the cooling part from the plurality of discharge holes. COPYRIGHT KIPO 2018 ...

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09-12-2022 дата публикации

폴리에스테르 타이어 코드

Номер: KR20220163183A
Автор: 유승민, 박성호, 임기섭
Принадлежит:

... 본 명세서에는, 1 내지 5 데니어의 섬도를 갖는 200 내지 2,000 개의 폴리에스테르 모노필라멘트를 포함한 폴리에스테르 멀티필라멘트와 이에 함침된 접착층을 포함하고, 10.0 g/d의 이상의 평균 인장 강도 및 0.30 이하의 인장 강도의 표준 편차를 갖는, 2 내지 3플라이의 폴리에스테르 타이어 코드가 개시된다.

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24-04-2014 дата публикации

SECURITY YARN INCLUDING MULTI-COMPOSITE SPINNING FIBER AND SECURITY PRODUCTS USING SAME

Номер: WO2014061958A1
Принадлежит:

The present invention relates to a security yarn having a multi-composite spinning fiber and security products using the same. The security yarn having a multi-composite spinning fiber, according to the present invention, contains, in at least one type of a polymer material, a first component selected from an IR reactive pigment or an IR absorption pigment, a second component selected from a visible pigment or an invisible UV-reactive fluorescent pigment, and a third component selected from an X-ray absorption material, so as to enable identification according to each infrared and ultraviolet wavelength and easy identification during X-ray irradiation, and thus the present invention is useful for forgery prevention since a means capable of carrying out multiple identifications is employed. Therefore, the security yarn having a multi-composite spinning fiber of the present invention can be useful for preventing the counterfeiting of paper money, gift certificates, marketable securities, ...

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02-09-2010 дата публикации

CARRIER HEAD FOR A BARE SILICON WAFER POLISHING APPARATUS

Номер: KR2010098515A1
Принадлежит:

The present invention relates to a carrier head for a bare silicon wafer polishing apparatus, comprising a carrier head housing (100), a retainer ring (200), and a press plate (300). The carrier head housing is tiltably coupled to an adapter (10) of a shaft (S) such that the carrier head housing (100) is arranged in parallel to the surface of a polishing pad (700) in accordance with the downward movement of the shaft (S), and transfers the pressure applied by the downward movement of the shaft (S) to the unit disposed therebelow. The retainer ring (200) is coupled to the bottom of a circumference (120) of a main body (110) of the carrier head housing (100) to support a bare silicon wafer (W) such that the bare silicon wafer (W) is prevented from escaping from the carrier head housing (100). The retaining ring (200) tightly contacts the polishing pad (700) by means of the pressure generated by the downward movement of the carrier head housing (100). The press plate (300) is coupled beneath ...

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10-11-2017 дата публикации

SPINNING NOZZLE APPARATUS FOR MANUFACTURING HIGH STRENGTH FIBER

Номер: KR1020170124293A
Принадлежит:

The present invention relates to a spinning nozzle apparatus for manufacturing a high strength fiber. According to the present invention, a hole for spinning a spinning nozzle is located outside of a pack body and is heated at higher temperature than the pack body using an extra heating body to control a molecule chain twisted structure so mechanical properties such as strength, elongation, etc. of a thermoplastic polymer fiber are improved. As high temperature of the heating body is thermally transferred to the pack body to minimize the temperature, degradation of physical properties caused by deterioration of a melted polymer in the pack body can be prevented. Also, the spinning nozzle apparatus of the present invention uses commercialized designs of a spinning nozzle and existing processes of a melting and spinning process and an elongation process to lower the melting viscosity of a resin, delay cooling speed of a fiber and improve elongation properties, thereby being capable of mass-producing ...

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01-06-2017 дата публикации

EXHAUST GAS PURIFYING APPARATUS FOR COFFEE ROASTER

Номер: KR101742269B1
Автор: LIM, KI SUB
Принадлежит: GIESEN KOREA

The present invention relates to an apparatus purifying exhaust gas by being connected to a coffee roaster (10), and comprising: an exhaust means (20) including an exhaust case (25) connected to the coffee roaster (10) by interposing an exhaust pipe (21); a combustion means (30) inducing the combustion of exhaust gas by including a combustor (31) on the exhaust case (25); and a control means (50) controlling the combustion condition of the combustion means (30) to a preset condition. Therefore, contaminated air generated from a process of heating and roasting coffee beans is removed, and the combustion condition is controlled to meet the conditions including the roasting amount of the coffee beans, thereby promoting the optimum roasting of the coffee beans. COPYRIGHT KIPO 2017 ...

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07-12-2015 дата публикации

DEVICE TO MEASURE MELTING VISCOSITY OF THERMOPLASTIC POLYMER RESIN

Номер: KR1020150136202A
Принадлежит:

The present invention provides a device to measure a melting viscosity of a thermoplastic polymer resin capable of preventing a melted thermoplastic polymer resin from staying for long time at high temperatures by continuously transferring and melting the thermoplastic polymer resin in a chip state; minimizing a measurement deviation by stabilizing a staying time; and minimizing a measurement error of the melting viscosity due to environment, by preventing the thermoplastic polymer resin from being in contact with moisture or oxygen in a step of drying and melting the resin by preventing a molecular weight from being degraded due to hydrolysis or oxidation decomposing as a resin sensitively reacts with the moisture or oxygen. According to the present invention, the device to measure the melting viscosity of the thermoplastic polymer resin comprises: a resin supply unit to extrude, melt, and supply the resin in the chip state while continuously transferring the resin in the chip state; a ...

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03-10-2019 дата публикации

SPINNING PACK FOR MANUFACTURING HIGH STRENGTH YARN, AND YARN MANUFACTURING APPARATUS AND METHOD

Номер: WO2019190141A1
Принадлежит:

One embodiment of the present invention provides a spinning pack, a yarn manufacturing apparatus comprising the spinning pack, a yarn manufacturing method using the yarn manufacturing apparatus, and yarn manufactured by the manufacturing method, the spinning pack comprising a spinneret including a nozzle unit, a heating unit for heating the nozzle unit, a pack body surrounding at least a part of the spinneret, and a spinning block surrounding the pack body, wherein: the spinneret includes a first surface which defines a storage space while facing at least one surface of the spinning block, and a second surface facing the first surface; the nozzle unit includes a plurality of discharge holes and protrudes from the second surface; and the heating unit is disposed at the outer side of the nozzle unit.

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09-11-2017 дата публикации

COMPOSITE SPINNING NON-WOVEN FABRIC FOR CONTROLLING WATERPROOF FUNCTION IN MULTILAYER STRUCTURE

Номер: KR1020170123814A
Принадлежит:

The present invention relates to a waterproof multilayer composite fiber material, and to a method for producing the same. More specifically, a waterproof multilayer composite fiber material, which has a multilayer structure formed as a side-by-side composite spinning nonwoven fabric and a fabric are composited, can improve mechanical properties which are weaknesses of a general melt-blown nonwoven fabric. Compared to a film, a sheet, and a nonwoven fabric product applied to a similar purpose, the waterproof multilayer composite fiber material can be produced at low costs. Process convenience can be improved, and an interlayer coupling ability is ensured. The diameter of an individual fiber is controlled, and the size of pores becomes uniform and smaller. Thus, water vapor permeability (air permeability) and water resistance can be improved. Thus, the waterproof multilayer composite fiber material can be useful as various industrial materials not only for outdoor clothes but also for vehicles ...

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01-05-2014 дата публикации

CONJUGATE FIBER PREPARATION METHOD AND PREPARATION APPARATUS, AND CONJUGATE FIBER PREPARED THEREBY

Номер: WO2014065507A1
Принадлежит:

The purpose of the present invention is to provide a conjugate fiber preparation method and preparation apparatus, and a conjugate fiber prepared thereby, wherein fibers having different characteristics are continuously crossed in the fiber length direction by continuously crossing and discharging in a molten state, through the continuous operation of a spinning nozzle portion, resins having different characteristics such as resins having different ingredients or resins having the same ingredients and containing a functional pigment or material or the like, thereby enabling the preparation of a conjugate fiber having various surface effects and patterns in the fiber length direction.

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