KR20030091062A - Method of manufacturing regenerated leather - Google Patents
Method of manufacturing regenerated leather Download PDFInfo
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- KR20030091062A KR20030091062A KR1020030072811A KR20030072811A KR20030091062A KR 20030091062 A KR20030091062 A KR 20030091062A KR 1020030072811 A KR1020030072811 A KR 1020030072811A KR 20030072811 A KR20030072811 A KR 20030072811A KR 20030091062 A KR20030091062 A KR 20030091062A
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B7/00—Special leathers and their manufacture
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
Description
본 발명은 재생피혁의 제조방법에 관한 것으로서, 더욱 상세히는 피혁 공정상의 고형 부산물을 콜라겐 섬유로 회수하여 레더 보드(leather board)로 재생할 수 있도록 한 재생피혁의 제조방법을 제공코자 하는 것이다.The present invention relates to a method for producing regenerated leather, and more particularly, to provide a method for producing regenerated leather to recover the solid by-products of the leather process as collagen fibers to be recycled to a leather board (leather board).
국내에 피혁산업은 약 40만ton의 원피를 외국에서 수입해 가공하는 실정으로, 피혁은 원단으로서 가공 시에 피혁 폐기물은 제혁공정의 각 과정에서 각종 피혁조각 및 부스러기 형태로 발생되며,In Korea, the leather industry imports and processes about 400,000 tons of raw materials from abroad. Leather is a fabric, and when it is processed, the leather waste is generated in various leather pieces and shavings in each process of the tanning process.
최초 원료피의 중량에 대하여 약 반 정도의 피혁원단으로 만들어지고 나머지는 피혁부산물로 발생되고 있는 실정이다.About half of the original raw material is made of leather fabrics, and the rest is generated as leather by-products.
따라서 연간 발생되는 피혁 부산물은 약 20만ton에 이를 것으로 추정된다.Therefore, annual leather by-products are estimated to be about 200,000 tons.
현재의 가공 처리되는 원료피의 95% 이상을 수입에 의존하고 있는 우리나라로서는 폐기물을 귀중한 자원으로서 재활용과 환경오염을 줄여 나가기 위해서도 제혁공정 중에 발생하는 피혁 고형 폐기물의 재활용은 반드시 이루어져야만 한다.In Korea, which relies on imports for more than 95% of the raw materials processed, the recycling of leather solid wastes generated during the tanning process must be made to reduce waste and environmental pollution.
선진국에서는 이미 1950년대부터 이들 폐 피혁의 재생에 관한 연구가 활발히 진행 중에 있으며, 실제로 많은 분야에서 이들 개발품이 사용되고 있다.In developed countries, research on the regeneration of these waste leathers has been actively conducted since the 1950s, and these developments have been used in many fields.
그러나 국내 피혁산업의 경우 세계에서 1차 가공 수출국 중 2~3위를 차지할 만큼 가공 물량은 많으나 업체의 규모가 영세하고 사양산업 또는 공해산업이라는 인식에 의해 개발 의욕이 극히 저조한 실정으로 이에 대한 체계적인 연구가 이루어지지 못하고 있는 실정이다.However, in the domestic leather industry, the processing volume is large enough to be ranked 2nd to 3rd among the world's first processing exporters, but the company's size is very small and the development motivation is extremely low due to the recognition of the specification industry or the pollution industry. Is not happening.
이에 본 발명에서는 피혁 공정상의 고형 부산물을 콜라겐 섬유로 회수하여 레더 보드(leather board)로 재생하는 제조방법을 제공하여 신발재료(신발의 안창, 중창, 월, 형심), 가방의 심재 및 피혁 대체용, 동적 특성이 적은 의자의 등가죽용, 벽지 등의 인테리어용, 기타 산업용 자재 등으로 활용할 수 있도록 하여 소중한 자원으로서의 재활용과 환경오염을 줄여 나가고, 새로운 응용도 개발을 통해 고용창출과 수입대체 및 수출증대에 이바지하고 나아가 피혁 산업의 활성화에 기여할 수 있는 재생피혁의 제조방법을 제공코자 하는 것으로서,Therefore, the present invention provides a manufacturing method for recovering the solid by-products of the leather process as collagen fibers to recycle to leather board (shoes insole, midsole, wall, shape core), for replacing the core material and leather of the bag In addition, it can be used as a leather for chairs with low dynamic characteristics, interiors such as wallpaper, and other industrial materials to reduce recycling and environmental pollution as valuable resources, and to create new applications and increase employment creation and import and export. To provide a method of producing recycled leather that contributes to and contributes to the activation of the leather industry.
본 발명은 특히 피혁 부산물로부터 콜라겐(collagen) 섬유를 회수하여 본 콜라겐 섬유를 이용하여 재생피혁 시트(sheet)를 연속적으로 제조할 수 있도록 한 재생피혁의 제조방법을 제공함에 발명의 기술적 과제를 두고 본 발명을 완성한 것이다.In particular, the present invention provides a method for producing regenerated leather, which enables the continuous production of regenerated leather sheets using the collagen fibers by recovering collagen fibers from leather by-products. The invention is completed.
도 1은 본 발명의 바람직한 일실시예를 보인 전체 제조방법을 보인 블록도1 is a block diagram showing an entire manufacturing method showing a preferred embodiment of the present invention
도 1은 본 발명에서 제공하는 재생피혁의 제조방법을 보인 블록도로서, 이를 통하여 본 발명을 상세히 설명키로 한다.1 is a block diagram showing a manufacturing method of the regenerated leather provided by the present invention, through which the present invention will be described in detail.
본 발명의 재생피혁 제조방법은 피혁 부산물(이하 '폐 피혁'이라 통칭한다.)에서 회수된 콜라겐 섬유를 분쇄기를 이용하여 약 6mm 크기의 입자로 분쇄한 후 더블 디스크 리파이너(double disk refiner) 또는 해리 및 고해(bating) 공정으로 콜라겐 섬유의 물리적 특성을 향상시킨 후 접착제, 가소제, PVA, 분산제, 응집제 등 수종의 고분자 등의 물질을 첨가하여 연속적으로 가죽을 재생, 가공토록 함으로써 현재 폐기되는 폐 피혁 스크랩을 재활용하고자 한다.In the method for producing recycled leather of the present invention, the collagen fibers recovered from the leather by-products (hereinafter referred to as 'waste leather') are pulverized into particles of about 6 mm size using a grinder and then double disk refiner or dissociation. And the waste leather scrap that is currently discarded by improving the physical properties of collagen fibers by bating process, and then regenerating and processing the leather continuously by adding various kinds of polymers such as adhesive, plasticizer, PVA, dispersant, flocculant and the like. I want to recycle it.
이를 위하여 본 발명은 다음의 실시예와 같은 제조방법을 통하여 폐 피혁으로부터 재생피혁을 얻었다.To this end, the present invention obtained regenerated leather from the waste leather through the manufacturing method as in the following examples.
(실시예 1)(Example 1)
(1) 분쇄공정(1) grinding process
양피, 우피와 같은 회수된 각종 재생 가능한 폐 피혁을 분쇄기를 사용하여 약 6mm 크기의 입자로 미세하게 분쇄한다.The recovered various recycled waste leathers, such as sheepskin and cowhide, are finely ground into particles of about 6 mm in size using a grinder.
상기 재생 가능한 폐 피혁은 생가죽을 사용할 수 있으나 이는 경비가 많이 소모되므로 쉐이핑 된 것을 사용토록 한다. 참고로 돈피는 사용이 불가능하다.The renewable waste leather can use raw leather, but this requires a lot of expenses to use the shaped. For reference, don't use it.
(2) 교반 및 배합공정(2) stirring and mixing process
상기 1항의 공정에 의해 분쇄된 폐 피혁을 하기의 약품이 물과 함께 배합한 교반기에 투입하여 약 1시간 정도 교반시킨다.The waste leather pulverized by the above step 1 is added to a stirrer in which the following chemicals are combined with water, and stirred for about 1 hour.
즉, 상기 약품은 투입, 교반하는 폐 피혁 대비 천연고무(natural rubber, NR, 60% 고형)를 20~30%, 소포제, 응집제, 가소제, PVA, 노화방지제를 약 1% 비율로 혼합한 것을 사용한다.In other words, the drug is 20 ~ 30% of natural rubber (NR, 60% solids), antifoaming agent, flocculant, plasticizer, PVA, anti-aging agent in the ratio of about 1% compared to the waste leather to be added and stirred do.
폐 피혁의 교반, 배합 시 온도는 25~40℃ 미만이 적격임을 실험결과에서 확인할 수 있었다.When stirring and mixing the waste leather, the temperature was less than 25 ~ 40 ℃ was confirmed in the experimental results.
(3) 해리 및 고해공정(3) dissociation and beating process
상기 2항에 의해 교반기에서 약품과 믹싱된 폐 피혁을 더블 디스크 리파이너(double disk refiner)를 통한 이송관을 이용하여 연속적으로 펌핑, 이송시켜 폐 피혁이 갖는 섬유의 물리적 특성을 향상시키고 부드럽게 한다.The waste leather mixed with the chemicals in the stirrer according to the above 2 is pumped and transferred continuously using a transfer pipe through a double disk refiner to improve and soften the physical properties of the fibers of the waste leather.
(4) 분산, 탈수공정(4) Dispersion and Dehydration Process
믹싱된 폐 피혁을 장망을 가진 초지기를 통하여 연속적으로 분산시켜 시트(sheet)화하면서 바이브레이터에 의해 진동을 주면서 폐 피혁에 함유된 수분을 탈수한다. 이러한 탈수과정을 거쳐 폐 피혁이 함유한 수분의 약 40% 정도의 수분을 제거하게 된다.The mixed waste leather is continuously dispersed through a paper machine having a long period of time to form a sheet to dehydrate water contained in the waste leather while being vibrated by the vibrator. This dehydration process removes about 40% of the moisture contained in the waste leather.
(5) 진공탈수공정(5) vacuum dewatering process
1차 분산, 탈수가 이루어진 반가공 상태의 폐 피혁을 강력한 진공펌프를 이용하여 탈수시켜 약 15% 정도의 수분을 추가로 제거한다.Semi-processed waste leather with primary dispersion and dehydration is dehydrated using a powerful vacuum pump to remove about 15% of moisture.
(6) 압착공정(6) crimping process
1,2차로 탈수가 이루어진 반가공 상태의 폐 피혁을 프레스를 이용하여 합착, 롤링시켜 약 10%의 수분을 제거한다.Semi-processed waste leather, which is dehydrated in the first and second stages, is bonded and rolled using a press to remove about 10% of moisture.
(7) 예비건조공정(7) preliminary drying process
반가공 상태의 폐 피혁을 건조 턴넬로를 통과시켜 약 10% 정도의 수분을 제거한다. 상기 예비건조공정은 선택적으로 실시할 수 있는 공정이다.The semi-processed waste leather is passed through a dry tunnel to remove about 10% of moisture. The predrying step is a step that can be carried out selectively.
(8) 함침공정(8) impregnation process
반가공 상태 폐 피혁의 인장 및 인열 등 강도보강을 위하여 함침(dipping) 공정을 수행한다. 상기 함침공정 역시 예비건조공정과 같이 선택적으로 실시할 수 있는 공정이다.Dipping process is performed for strength reinforcement such as tensile and tear of semi-processed waste leather. The impregnation process is also a process that can be selectively carried out like the pre-drying process.
(9) 건조공정(9) drying process
반가공 상태 폐 피혁을 드럼히터를 통과시키면서 건조시켜 약 10%의 수분을 추가적으로 제거한다.The semi-processed waste leather is dried while passing through a drum heater to further remove about 10% of moisture.
폐 피혁의 인열 강도 강화를 위하여 1차 예비건조공정을 거친 후 함침공정 시 바인더(binder)를 물에 희석하여 2차 건조를 행하여 인열 및 인장강도의 급격한 상승을 발견할 수 있었다.In order to reinforce the tear strength of the waste leather, after the first predrying process, the binder was diluted in water and subjected to the second drying to find the rapid increase in tear and tensile strength.
폐 피혁의 건조에 있어서, 상기 드럼히터로 이루어진 건조로의 온도 상승에 따라 폐 피혁을 재생피혁으로 완성, 제조할 시 평면 및 인장강도의 변화가 있어 1차 전기 건조로에서는 70℃의 온도로 2~7m/min의 속도로 통과하는 것이 바람직하다.In the drying of waste leather, there is a change in plane and tensile strength when finishing and manufacturing waste leather with recycled leather according to the temperature rise of the drying furnace composed of the drum heater, so the temperature is 70 to 2-7m in the primary electric drying furnace. It is desirable to pass at a rate of / min.
드럼히터를 통과시키면서 폐 피혁 반가공품을 건조할 시에 수분의 함량증가로 변형 우려가 있어 1,2차 드럼의 온도를 50℃로 하고 점차 10차 드럼까지 100℃까지 상승토록 하여 상품의 평활도 및 인장, 인력 강도가 최상으로 이루어지도록 한다.When drying the finished leather semi-finished products while passing through the drum heater, there is a risk of deformation due to the increase of moisture content.The temperature of the first and second drums should be 50 ℃, and gradually rise to 100 ℃ until the tenth drum. To ensure that the workforce strength is at its best.
(10) 다림질공정(10) Ironing process
반가공품의 표면평활도를 높이기 위하여 카렌다를 경유시켜 다림질하면서 평활도가 극대화될 수 있도록 한 재생피혁을 제조한다.In order to increase the surface smoothness of semi-finished products, recycled leather is manufactured so that the smoothness can be maximized while ironing through a calender.
(11) 품질검사공정(11) Quality inspection process
정밀측정기로 완성된 재생피혁의 두께, 수분, 평량 등을 측정하여 품질검사를 행한다.The quality test is carried out by measuring the thickness, moisture, basis weight, etc. of the regenerated leather.
(12) 재단공정(12) Cutting process
품질검사를 거쳐 하자가 없는 재생피혁 완제품을 규격에 따라 재단기로 재단을 하여 포장, 출하토록 한다.After quality inspection, the finished leather without defect shall be cut and cut and shipped according to the standard.
한편, 상기 전 공정에서 탈수처리되는 폐수 전량을 회수하여 수차에 걸쳐 청수와 50:50으로 재활용하였는바, 제조되는 재생피혁의 품질에는 전혀 영향이 없었으며, 이러한 실험결과를 볼 때 본 발명의 제조방법은 용수를 재활용하면서 재생피혁을 제조할 수 있어 용수절약에도 크게 일조할 수 있는 것이다.On the other hand, the entire amount of waste water to be dehydrated in the previous process was recovered and recycled to 50:50 with fresh water over several times, there was no effect on the quality of the regenerated leather produced, seeing the results of the present invention The method can produce recycled leather while recycling the water, which can greatly contribute to water conservation.
이상에서 상세히 살펴 본 바와 같이 본 발명에서 제공하는 재생피혁의 제조방법은 피혁 공정상의 폐 피혁을 콜라겐 섬유로 회수하여 레더 보드(leather board)로 재생할 수 있는 제조방법을 제공하는 것으로서,As described in detail above, the manufacturing method of the regenerated leather provided by the present invention is to provide a manufacturing method that can recover the waste leather in the leather process as collagen fibers to be recycled to the leather board (leather board),
본 발명은 신발재료(신발의 안창, 중창, 월 형심), 가방의 심재 및 피혁 대체용, 동적 특성이 적은 의자의 등가죽용, 벽지 등의 인테리어용, 기타 산업용 자재 등으로 널리 활용할 수 있어 소중한 자원 재활용과 환경오염을 대폭 경감시킬 수 있으며,The present invention can be widely used in footwear materials (insoles, midsoles, wall-shaped core), bag cores and leather substitutes, back leathers of chairs with less dynamic characteristics, interiors such as wallpaper, and other industrial materials. Can greatly reduce recycling and environmental pollution,
업계의 고용창출과 수입대체효과 및 수출증대에 크게 이바지하고 나아가 피혁산업의 활성화에 기여할 수 있는 등 그 기대되는 효과가 다대한 것이다.The expected effects are enormous, as they contribute greatly to the job creation, import substitution effect and export increase of the industry, and further contribute to the vitalization of the leather industry.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100829058B1 (en) * | 2007-06-13 | 2008-05-13 | 정효근 | Recycle leather sheet manufacturing method using eco-leather which be able to needlework |
CN109477255A (en) * | 2016-03-08 | 2019-03-15 | 皮塞尔控股有限公司 | Method of the preparation for the fiber of regenerative leather substrate |
KR101996175B1 (en) * | 2018-05-30 | 2019-07-03 | 주식회사 이앤알 | Method for manufacturing lightweight foamed reclaimed leather for footwear and recycled leather produced by the method |
KR20240050909A (en) | 2022-10-12 | 2024-04-19 | 주식회사 이앤알 | A method of manufacturing regenerated leather for tennis shoe upper leather using regenerated material and regenerated leather manufactured by the above method |
-
2003
- 2003-10-18 KR KR1020030072811A patent/KR20030091062A/en active IP Right Grant
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100829058B1 (en) * | 2007-06-13 | 2008-05-13 | 정효근 | Recycle leather sheet manufacturing method using eco-leather which be able to needlework |
CN109477255A (en) * | 2016-03-08 | 2019-03-15 | 皮塞尔控股有限公司 | Method of the preparation for the fiber of regenerative leather substrate |
KR101996175B1 (en) * | 2018-05-30 | 2019-07-03 | 주식회사 이앤알 | Method for manufacturing lightweight foamed reclaimed leather for footwear and recycled leather produced by the method |
KR20240050909A (en) | 2022-10-12 | 2024-04-19 | 주식회사 이앤알 | A method of manufacturing regenerated leather for tennis shoe upper leather using regenerated material and regenerated leather manufactured by the above method |
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