KR100829058B1 - Recycle leather sheet manufacturing method using eco-leather which be able to needlework - Google Patents

Recycle leather sheet manufacturing method using eco-leather which be able to needlework Download PDF

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KR100829058B1
KR100829058B1 KR1020070057729A KR20070057729A KR100829058B1 KR 100829058 B1 KR100829058 B1 KR 100829058B1 KR 1020070057729 A KR1020070057729 A KR 1020070057729A KR 20070057729 A KR20070057729 A KR 20070057729A KR 100829058 B1 KR100829058 B1 KR 100829058B1
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leather
sheet
natural
board
natural leather
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KR1020070057729A
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Korean (ko)
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정효근
김호진
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정효근
김호진
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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
    • C14B7/02—Composite leathers
    • C14B7/04—Composite leathers by cementing or pressing together leather pieces, strips or layers, Reinforcing or stiffening leather by means of reinforcing layers
    • 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
    • C14B7/06—Leather webs built up of interengaged strips or pieces, e.g. by braiding
    • 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
    • C14C1/00—Chemical treatment prior to tanning
    • C14C1/08—Deliming; Bating; Pickling; Degreasing
    • 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
    • C14C5/00—Degreasing leather
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Textile Engineering (AREA)
  • Composite Materials (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Abstract

A method for manufacturing a sewable recycle leather sheet is provided to obtain the leather sheet capable of being utilized in various uses by excellent durability, elasticity, and softness. A method for manufacturing a sewable recycle leather comprises the steps of: making a non-woven fabric board in a scrubber shape by sorting and mixing by length fabric obtained by removing oils and fatliquor from the natural leather waste soaked in organic solvent(S100); making a body board in a board shape using a mixture of crashed natural leather waste that natural rubber liquid is added, chemical solvents, and a binder(S200); making one integrated sheet by mutually heating and pressing the non-woven fabric board and body board(S300); and making the leather sheet by performing a polyurethane coating on the surface after heating and drying the integrated sheet(S400).

Description

천연피혁 폐기물을 이용하여 봉제 가능한 재활용 가죽 시트를 제조하는 방법{Recycle leather sheet manufacturing method using Eco-Leather which be able to needlework}Recycle leather sheet manufacturing method using Eco-Leather which be able to needlework}

도 1은 본 발명에 따른 천연피혁 폐기물을 이용하여 봉제 가능한 재활용 가죽 시트를 제조하는 방법을 나타낸 블록 선도1 is a block diagram showing a method for manufacturing a sewable recycled leather sheet using natural leather waste according to the present invention.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

S100...부직포 보드 제조 단계 S200...몸체 보드 제조 단계S100 ... Nonwoven Board Manufacturing Steps S200 ... Bodyboard Manufacturing Steps

S300...일체화 단계 S400...가죽시트 제조 단계S300 ... Integration step S400 ... Leather sheet manufacturing step

본 발명은 천연피혁 폐기물을 이용하여 봉제 가능한 재활용 가죽 시트를 제조하는 방법에 관한 것으로, 천연피혁 폐기물을 각각 부직포 및 판지 형상의 보드로 제작하여 상호 결합시키고 폴리우레탄 코팅 등을 실시하여 가죽시트를 제조함으로써 내구성 및 탄성이 뛰어나 다양한 용도로 활용할 수 있는 가죽 시트를 얻을 수 있도록 한 천연피혁 폐기물을 이용하여 봉제 가능한 재활용 가죽 시트를 제조하는 방법에 관한 것이다.The present invention relates to a method for manufacturing a sewable recycled leather sheet using natural leather waste, and to produce a leather sheet by combining the natural leather waste into a non-woven fabric and a cardboard board, and mutually bonded to each other and polyurethane coating The present invention relates to a method for manufacturing a sewable recycled leather sheet using natural leather waste, thereby obtaining a leather sheet having excellent durability and elasticity and which can be utilized for various purposes.

일반적으로 천연피혁은 두께가 균일하지 못하므로, 은면(nappa, 털이 난 측면) 및 육면(suede, 은면의 반대면)을 고르게 절제하고 천연피혁의 가장자리 또한 불필요한 부분, 예를 들면 대가리 부분과 다리 부분 등과 같이 상업적 가치가 없는 부분을 절제한 나머지 부분을 가공하여 제품화하게 된다.In general, natural leather is not uniform in thickness, so evenly cut the noodle (nappa, hairy side) and the flesh (suede, the opposite side of the noodle), and the edges of the natural leather are also unnecessary, for example, head and leg parts. The rest of the non-commercial value such as the rest will be processed and commercialized.

그러나, 상기와 같은 천연피혁의 가공과정에서는 은면과 육면의 절제를 통하여 부스러기와 같은 셰이빙 스크랩(shaving scrap)과 불필요한 부분 등의 부산물이 대량으로 발생하게 되며, 상기와 같은 천연피혁 폐기물의 처리는 매우 큰 문제로 대두되었다.However, in the processing of the natural leather as described above, by-products such as shaving scrap and unnecessary parts such as shavings are generated in a large amount through the cutting of the silver and the meat, and the treatment of such natural leather waste is very It was a big problem.

상기와 같은 관점에서 안출된 것으로 대한민국 공개특허 제10-2006-0081182호의 '피혁 폐기물을 이용한 시트 제조방법'(이하 '선행기술')과 같은 것을 들 수 있으며, 상기 선행기술은 피혁 폐기물을 분쇄하여 피혁 처리제 및 바인더 등과 혼합하여 시트 형상으로 압착, 탈수 및 건조처리한 것을 그 골자로 하고 있다.From the above point of view may be the same as the 'sheet manufacturing method using the leather waste' (hereinafter, 'prior art') of the Republic of Korea Patent Publication No. 10-2006-0081182, the prior art by grinding the leather waste A mixture of a leather treatment agent, a binder, and the like, which has been pressed, dehydrated and dried in a sheet form, has its main characteristics.

그러나, 상기 선행기술은 단순한 가죽시트를 제조하는 것으로, 장식용 내장재, 벽지 등에 극히 용도가 제한적이며, 운동화나 자동차 시트 등과 같이 반복적인 외력과 사용자 및 물체와의 지속적인 접촉에 내구성과 탄성을 지니는 제품에 적용하기에는 무리가 있었다.However, the prior art is to manufacture a simple leather seat, and the use is very limited in decorative interior materials, wallpaper, etc., the product having durability and elasticity in the repeated contact with the external force and users and objects such as sneakers or car seats There was too much to apply.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 내구성 및 탄성이 뛰어나 다양한 용도로 활용할 수 있는 가죽 시트를 얻을 수 있도록 한 천연피혁 폐기물을 이용하여 봉제 가능한 재활용 가죽 시트를 제조하는 방법을 제공하 고자 하는데 그 목적이 있다.The present invention has been made to solve the above problems, and provides a method for producing a sewable recycled leather sheet using natural leather waste to obtain a leather sheet excellent in durability and elasticity can be utilized for various purposes. I want to do that.

상기와 같은 목적을 달성하기 위하여 본 발명은, 분쇄한 천연피혁 폐기물을 이용하여 봉제 가능한 재활용 가죽 시트를 제조하는 방법에 있어서, 유기용제에 침지시킨 천연피혁 폐기물에서 유지분 및 가지제를 제거하여 얻은 섬유를 길이별로 분리하고 혼합하여 수세미와 같은 형상으로 만드는 부직포 보드 제조 단계; 천연고무액을 첨가한 분쇄된 천연피혁 폐기물과 화학용제 및 바인더를 혼합한 것을 일정 두께의 판지 형상으로 만드는 몸체 보드 제조 단계; 상기 부직포 보드와 몸체 보드를 상호 가열 가압하여 하나의 시트로 만드는 일체화 단계; 및 일체화된 상기 시트를 가열건조한 다음 표면에 폴리우레탄 코팅을 실시하는 가죽시트 제조 단계;를 포함하는 것을 특징으로 한다.In order to achieve the above object, the present invention, in the method for producing a sewable recycled leather sheet using the crushed natural leather waste, obtained by removing fat and oil from the natural leather waste immersed in an organic solvent The nonwoven board manufacturing step of separating the fibers by length and mixing to form a loofah-like shape; A body board manufacturing step of mixing the crushed natural leather waste added with a natural rubber solution with a chemical solvent and a binder into a cardboard shape having a predetermined thickness; An integration step of heating and pressing the nonwoven board and the body board into one sheet; And a leather sheet manufacturing step of heating and drying the integrated sheet and then performing a polyurethane coating on the surface thereof.

도 1은 본 발명에 따른 천연피혁 폐기물을 이용하여 봉제 가능한 재활용 가죽 시트를 제조하는 방법을 나타낸 블록 선도이며, 도시된 바와 같이 본 발명은 크게 부직포 보드 제조 단계(S100), 몸체 보드 제조 단계(S200), 일체화 단계(S300) 및 가죽시트 제조 단계(S400)로 이루어지는 것을 확인할 수 있다.1 is a block diagram showing a method for manufacturing a sewable recycled leather sheet using natural leather waste according to the present invention, as shown in the present invention is largely nonwoven board manufacturing step (S100), body board manufacturing step (S200) ), It can be confirmed that the integration step (S300) and the leather sheet manufacturing step (S400).

우선, 상기 부직포 보드 제조 단계(S100)에서는 유기용제에 침지시킨 천연피혁 폐기물에서 유지분 및 가지제를 제거하여 얻은 섬유를 길이별로 분리하고 혼합하여 수세미와 같은 형상으로 만드는 작업이 실시되며, 상기 부직포 보드 제조 단계(S100)는 피혁 섬유를 건조하고, 길이별로 분류하며, 부직포로 고착하는 과정이 이루어지게 된다.First, in the step of manufacturing the nonwoven fabric board (S100), a process of separating and mixing fibers obtained by removing fats and oils from natural leather wastes immersed in an organic solvent by length and mixing them into shapes such as a scrubber is performed. Board manufacturing step (S100) is a process of drying the leather fibers, sorting by length, fixing to a nonwoven fabric.

이를 위하여 작업자는 천연피혁의 은면 및 육면을 절제한 셰이빙 스크랩과 각종 절제된 조각을 분쇄한 다음 톨루엔 또는 벤젠에 침지시켜 40 내지 60℃로 가열시켜 유지분 및 가지제를 분리하면 섬유질의 피혁 섬유만 잔존하게 되고 이를 밀폐실에서 건조시킨다.To this end, the operator grinds the shaving scrap and various cut pieces of natural leather and noodles, and then immerses them in toluene or benzene, heats them to 40 to 60 ° C, and separates fats and oils. It is then dried in a closed room.

여기서, 천연피혁 폐기물의 분쇄는 내주면에 미세핀이 무수히 많이 형성된 분쇄기에 투입하여 고속 회전시키면서 피혁 섬유와 함께 뭉쳐진 유지분 및 가지제 등의 불필요한 성분이 분리되는 방식이다. Here, the pulverization of the natural leather waste is a method in which unnecessary components, such as fats and oils, which are bound together with the leather fibers, are separated while being put into a grinder having a large number of fine pins formed on the inner circumference thereof and rotating at high speed.

이후, 밀폐실 내에서 건조된 피혁 섬유는 밀폐실 일측에서부터 가해지는 풍력에 의하여 장, 중, 단섬유의 길이별로 분류되게 되고, 상기와 같이 길이별로 분리된 피혁 섬유를 용도에 따라 적절히 혼합하여, 예를 들면 장섬유를 많이 혼합하여 내구성이 강한 소재를, 단섬유를 많이 혼합하여 부드러운 질감의 소재를 획득할 수 있으며, 혼합된 피혁 섬유를 압착 혼합하여 수세미와 같은 질감의 부직포 보드로 고착화시키는 것이다.Thereafter, the leather fibers dried in the closed chamber are classified by the length of the long, medium, and short fibers by the wind power applied from one side of the closed chamber, and the leather fibers separated by the length are mixed as appropriate according to the purpose. For example, by mixing a lot of long fibers, a durable material can be mixed, and a lot of short fibers can be mixed to obtain a soft textured material, and the mixed leather fibers are compressed and mixed into a non-woven board having a texture such as a scrubber. .

여기서, 피혁 섬유의 압착 혼합은 상하 왕복이동하는 압착판 하부면에 무수히 배열된 다수개의 미세핀이 상기 피혁 섬유의 혼합물에 주기적으로 가압 진동하면서 장섬유와 중섬유 및 단섬유를 불규칙하고 무작위적으로 상호 얽혀서 고착화되도록 하는 것이다.Here, the compression mixing of the leather fibers is irregularly and randomly and randomly long fibers, medium fibers and short fibers as a number of fine pins arranged on the bottom surface of the pressing plate to reciprocate vertically and periodically pressurized vibration to the mixture of the leather fibers To intertwine and fix.

이때, 상기 미세핀은 조밀도가 낮게 무작위로 혼합된 장, 중, 단섬유를 상호 조밀하게 다져 줌으로써 조밀도를 향상시키면서, 즉 불균일한 피혁 섬유의 분포를 균일하게 변화시키면서 상기 장, 중, 단섬유 상호간의 결착을 유도하게 된다.At this time, the fine pin is a low-density randomly mixed long, medium, short fibers by compacting each other to improve the density, that is, uniformly changing the distribution of the non-uniform leather fibers in the long, medium, short This leads to binding between the fibers.

따라서, 상기 미세핀에 의한 가압 진동, 즉 펀칭 작업은 그 횟수가 많을수록 피혁 섬유 상호간의 조밀도를 향상시키고 후술할 일체화 단계(S300)에서 만들어지는 시트의 전체 면적에 걸친 강도, 즉 내균열성을 향상시키는 역할을 하게 되는 것이다.Therefore, the pressure vibration caused by the fine pins, that is, the punching operation, increases the density between the leather fibers as the number of times increases, and the strength, that is, the crack resistance, over the entire area of the sheet made in the integration step (S300) to be described later. It will play a role of improving.

즉, 상기와 같은 부직포 보드 제조 단계(S100)는 가죽시트의 내구성 및 복원력을 강화하고 가죽시트의 탄성력 또한 향상시키는 역할을 수행함은 물론, 봉제 또한 가능하게 하는 유연성 또한 가죽시트에 부여하게 되는 부직포 보드를 제조하는 것이라 할 수 있다.That is, the non-woven board manufacturing step (S100) as described above serves to enhance the durability and resilience of the leather sheet and also improve the elasticity of the leather sheet, as well as the flexibility to enable sewing also the nonwoven board It can be said to manufacture.

이것은 전체 면에 걸쳐 무작위적으로 이격된 복수개의 나무의 섬유질이 혼재된 한지나 창호지와 같이 전통적인 종이가 좀처럼 찢어지지 않고 내구성을 유지하는 것과 같은 원리인 것이다. This is the same principle as traditional paper, such as Korean paper or window paper, which is mixed with fibers of a plurality of trees randomly spaced over the entire surface, to maintain durability without being easily torn.

이와는 별도로 상기 몸체 보드 제조 단계(S200)에서는 천연고무액을 첨가한 분쇄된 천연피혁 폐기물과 화학용제 및 바인더를 혼합한 것을 일정 두께의 판지 형상으로 만드는 작업이 수행된다.Separately, the body board manufacturing step (S200) is performed to make a mixture of the pulverized natural leather waste added with a natural rubber solution, a chemical solvent and a binder into a cardboard shape of a predetermined thickness.

이를 위하여, 작업자는 분쇄한 천연피혁 폐기물에 천연고무액을 첨가하고, 황산 알루미늄, 페놀수지, 전분 등과 같이 천연피혁 폐기물 간의 상호 결속을 위한 바인더와, 불연재 또는 난연재를 포함한 화학용제를 혼합하는 교반 과정을 실시한다.To this end, the worker adds a natural rubber solution to the crushed natural leather waste, and a stirring process of mixing a binder for mutual binding between natural leather waste such as aluminum sulfate, phenol resin, starch and the like, and a chemical solvent including a non-combustible or flame retardant material. Is carried out.

교반 과정이 실시된 혼합물, 즉 상기 천연피혁 폐기물과 바인더 및 화학용제의 혼합물은 진행방향과 직교방향으로 진동하는 컨베이어 벨트 위에 일정두께로 분 사되는 혼합물 분사 과정을 거치게 되며, 진동에 의하여 혼합물은 일정한 두께로 펼쳐지게 되는 것이다.The mixture subjected to the stirring process, that is, the mixture of the natural leather waste, the binder and the chemical solvent is sprayed with a mixture sprayed to a certain thickness on the conveyor belt vibrating in a direction perpendicular to the traveling direction, and the mixture is fixed by vibration. It will spread out to thickness.

이후, 분사된 혼합물은 압착후 가열 건조하여 판지로 만드는 고착 과정을 통해 다양한 제품의 표면과 형상을 이루는 뼈대 및 근육을 포함한 몸체 역할을 하는 몸체 보드가 되는 것이다.Afterwards, the sprayed mixture is compressed into heat-dried paperboard, and then becomes a body board that serves as a body including skeletons and muscles forming the surface and shape of various products.

다음으로, 상기 일체화 단계(S300)에서는 상기 부직포 보드와 몸체 보드를 상호 가열 가압하여 하나의 시트로 만드는 작업을 실시하게 되며, 이는 외주면을 따라 일정간격으로 무수하게 배열된 다수개의 미세핀이 구비된 압착롤러에 의하여 실시된다.Next, in the integration step (S300), the non-woven fabric board and the body board are mutually heated and pressurized to form a single sheet, which is provided with a plurality of fine pins arranged innumerably at regular intervals along an outer circumferential surface thereof. It is carried out by a pressing roller.

상기 일체화 단계(S300)에서 상기 부직포 보드는 히터가 내장된 컨베이어 벨트를 따라 이동하는 몸체 보드 상부측에 거치되어 일체로 이동하면서 압착롤러로 압착된다.In the integration step (S300), the non-woven board is mounted on the upper side of the body board moving along the conveyor belt with a heater is integrally moved while being compressed by a compression roller.

상기 압착롤러는 히터가 내장되고 외주면을 따라 무수히 많은 미세핀이 정렬된 것이며, 몸체 보드와 부직포 보드가 거치되어 이동하는 상기 컨베이어 벨트 상에서 상하 이동하여 압착함으로써 상기 시트의 두께를 조절할 수 있게 되는 것이다.The pressing roller is a heater is built and a myriad of fine pins are aligned along the outer circumferential surface, the body board and the non-woven board is mounted on the conveyor belt to be moved by moving up and down to control the thickness of the sheet can be adjusted.

즉, 상기 시트는 압착롤러에 의하여 압착되는 정도에 따라 내구성이 크면서 두께가 얇은 시트를, 또는 두께가 비교적 두꺼우면서도 부드러운 시트를 각각 제작할 수 있는 것이다.In other words, the sheet is a sheet that is durable and thin depending on the degree to which the pressing roller is pressed, or a relatively thick and soft sheet can be produced respectively.

최종적으로 상기 가죽시트 제조 단계(S400)에서 일체화된 상기 시트를 가열 건조한 다음 표면에 폴리우레탄 코팅을 실시하는 작업이 이루어지게 되며, 폴리우레탄 코팅을 실시하는 것은 방수성과 함께 내구성을 보다 향상시키기 위한 수단이다.Finally, the step of heating and drying the sheet integrated in the leather sheet manufacturing step (S400) and then performing a polyurethane coating on the surface is made, the polyurethane coating is a means for further improving durability with waterproofness to be.

작업자는 상기 가죽시트 제조단계(S400)에서 폴리우레탄 코팅이 실시된 상기 시트의 표면에 천연 가죽 질감의 돌기와 홈을 포함하는 무늬를 형성하는 엠보스 처리 과정을 더 실시함으로써 다양한 가죽 제품의 생산을 할 수 있게 되는 것이다.The worker may produce a variety of leather products by further performing an embossing process of forming a pattern including a projection and grooves of natural leather texture on the surface of the sheet is polyurethane coating in the leather sheet manufacturing step (S400). It will be possible.

이상과 같이 본 발명은 내구성 및 탄성이 뛰어나 다양한 용도로 활용할 수 있는 가죽 시트를 얻을 수 있도록 한 천연피혁 폐기물을 이용하여 봉제 가능한 재활용 가죽 시트를 제조하는 방법을 제공하는 것을 그 기본적인 기술적 사상으로 하고 있음을 알 수 있다.As described above, the present invention has as its basic technical idea to provide a method for manufacturing a sewable recycled leather sheet using natural leather waste, which is excellent in durability and elasticity, so that a leather sheet can be obtained for various uses. It can be seen.

그리고, 본 발명의 기본적인 기술적 사상의 범주 내에서 당해 업계 통상의 지식을 가진 자에게 있어서는 다른 많은 변형 및 응용이 가능함은 물론이다.In addition, many modifications and applications are possible to those skilled in the art within the scope of the basic technical idea of the present invention.

상기와 같은 구성의 본 발명에 따르면 다음과 같은 효과를 기대할 수 있다.According to the present invention of the above configuration can be expected the following effects.

우선, 섬유질만 잔존시킨 피혁 섬유를 수세미 형상의 부직포 보드로 만들고, 피혁폐기물에 바인더와 화학용제를 혼합하여 몸체 보드로 만든 것을 상호 가열 압착 건조하여 시트로 일체한 것에 폴리우레탄 코팅하여 가죽 시트로 제작하는 방법을 채택함으로써 종래기술에 비하여 내구성과 탄력성 및 유연성을 대폭향상시키고 봉제 또한 가능하게 되므로, 벽지나 건축 내장재는 물론 신발, 가방, 자동차 시트 및 소파 등의 커버 등 다양한 분야에 폭넓게 적용할 수 있는 특장점이 있다.First of all, the leather fiber remaining only in the fiber is made of a loofah-shaped nonwoven board, and the body board is mixed with a binder and a chemical solvent in the leather waste, which is made of a leather sheet by polyurethane coating on the integrally formed sheet by mutual heat compression bonding. By adopting this method, durability, elasticity, and flexibility can be greatly improved and sewing can be made compared to the prior art, and it can be widely applied to various fields such as wallpaper, building interior materials, covers of shoes, bags, car seats, sofas, etc. It has its advantages.

그리고, 본 발명은 천연피혁 가공 과정에서 엄청난 량으로 발생하는 부산물인 천연피혁 폐기물을 소각 또는 매립하는데 따른 비용과 환경오염 발생 등의 문제를 원천적으로 해결할 수 있음은 물론, 현재 사양화하는 피혁 가공산업에 획기적인 전기를 마련할 수 있는 계기를 제공할 수 있는 환경 친화적이면서도 천연 피혁에 손색없는 질감의 재활용 피혁 제품을 획득할 수 있게 되는 등 매우 유용한 발명인 것이다.In addition, the present invention can fundamentally solve the problems such as cost and environmental pollution caused by incineration or landfill of natural leather waste, which is a by-product generated in a large amount in the process of natural leather, of course, in the leather processing industry that is currently specified. It is a very useful invention, such as being able to obtain recycled leather products of environmentally friendly and natural texture that can provide an opportunity to provide breakthrough electricity.

Claims (5)

분쇄한 천연피혁 폐기물을 이용하여 봉제 가능한 재활용 가죽 시트를 제조하는 방법에 있어서,In the method of manufacturing a sewable recycled leather sheet using the crushed natural leather waste, 유기용제에 침지시킨 천연피혁 폐기물에서 유지분 및 가지제를 제거하여 얻은 섬유를 길이별로 분리하고 혼합하여 수세미와 같은 형상으로 만드는 부직포 보드 제조 단계(S100);Non-woven fabric board manufacturing step (S100) to separate the fibers obtained by removing the oil and liquor from the natural leather waste immersed in the organic solvent by length and to form a loofah-like shape (S100); 천연고무액을 첨가한 분쇄된 천연피혁 폐기물과 화학용제 및 바인더를 혼합한 것을 일정 두께의 판지 형상으로 만드는 몸체 보드 제조 단계(S200);Body board manufacturing step (S200) of mixing the crushed natural leather waste with the addition of natural rubber solution and a chemical solvent and a binder into a cardboard shape of a predetermined thickness (S200); 상기 부직포 보드와 몸체 보드를 상호 가열 가압하여 하나의 시트로 만드는 일체화 단계(S300); 및Integrating the non-woven board and the body board by mutual heating step of making a single sheet (S300); And 일체화된 상기 시트를 가열건조한 다음 표면에 폴리우레탄 코팅을 실시하는 가죽시트 제조 단계(S400);를 포함하는 것을 특징으로 하는 천연피혁 폐기물을 이용하여 봉제 가능한 재활용 가죽 시트를 제조하는 방법.Method of producing a sewable recycled leather sheet using a natural leather waste comprising a; leather sheet manufacturing step (S400) of heating and drying the integrated sheet and then performing a polyurethane coating on the surface. 제 1 항에 있어서,The method of claim 1, 상기 부직포 보드 제조 단계(S100)는,The nonwoven board manufacturing step (S100), 톨루엔 또는 벤젠에 천연피혁 폐기물을 침지시켜 40 내지 60℃로 가열시켜 유지분 및 가지제를 분리하여 남은 피혁 섬유를 밀폐실에서 건조하는 과정;Immersing the natural leather waste in toluene or benzene and heating to 40 to 60 ° C. to separate the fats and oils and drying the remaining leather fibers in a closed room; 밀폐실 내에서 건조된 피혁 섬유를 밀폐실 일측에서부터 가해지는 풍력으로 써 길이별로 분류하는 섬유 분류 과정; 및A fiber classification process of classifying the leather fibers dried in the sealed chamber by the length of the wind as applied from one side of the sealed chamber; And 길이별로 분리된 피혁 섬유를 적절히 혼합하여 상하 왕복이동하는 압착판 하부면에 무수히 배열된 다수개의 미세핀에 의하여 수세미 형상으로 압착 혼합되며 부직포 보드로 만드는 고착 과정;으로 이루어지는 것을 특징으로 하는 천연피혁 폐기물을 이용하여 봉제 가능한 재활용 가죽 시트를 제조하는 방법.Natural leather waste, characterized in that consisting of a pressing process made of a non-woven board by mixing a number of finely divided leather fibers by length and squeezed into a loofah shape by a plurality of fine pins arranged on the bottom surface of the pressing plate to reciprocate vertically Method for producing a sewable recycled leather sheet using a. 제 1 항에 있어서,The method of claim 1, 상기 몸체 보드 제조 단계(S200)에서,In the body board manufacturing step (S200), 분쇄한 천연피혁 폐기물에 천연고무액을 첨가하고, 천연피혁 폐기물 간의 상호 결속을 위한 바인더와, 불연재 또는 난연재를 포함한 화학용제를 혼합하는 교반 과정;Adding a natural rubber solution to the pulverized natural leather waste and stirring the binder for mutual binding between the natural leather waste and a chemical solvent including a nonflammable material or a flame retardant material; 상기 천연피혁 폐기물과 바인더 및 화학용제의 혼합물을 진행방향과 직교방향으로 진동하는 컨베이어 벨트 위에 일정두께로 분사하는 혼합물 분사 과정; 및A mixture spraying process of spraying the mixture of the natural leather waste and the binder and the chemical solvent on a conveyor belt vibrating in a direction perpendicular to the traveling direction; And 분사된 혼합물을 압착하고 가열 건조하여 판지로 만드는 고착 과정;으로 이루어지는 것을 특징으로 하는 천연피혁 폐기물을 이용하여 봉제 가능한 재활용 가죽 시트를 제조하는 방법.A method of producing a sewable recycled leather sheet using a natural leather waste, characterized in that the compression process of pressing the mixture and heat-drying the sprayed mixture into a cardboard. 제 1 항에 있어서,The method of claim 1, 상기 일체화 단계(S300)에서,In the integration step (S300), 상기 부직포 보드는, The nonwoven board, 히터가 내장된 컨베이어 벨트를 따라 이동하는 몸체 보드 상부측에 거치되어 일체로 이동하면서,While the heater is mounted on the upper side of the body board moving along the built-in conveyor belt, 히터가 내장되고 외주면을 따라 무수히 많은 미세핀이 정렬된 압착롤러로 압착되어 상기 몸체 보드와 하나의 시트로 상호 일체화되고,The heater is embedded and a myriad of fine pins along the outer circumferential surface are compressed with an squeezed roller, which is integrated with the body board and one sheet, 상기 압착롤러는 컨베이어 벨트 상에서 상하 이동하여 압착함으로써 상기 시트의 두께를 조절 가능한 것을 특징으로 하는 천연피혁 폐기물을 이용하여 봉제 가능한 재활용 가죽 시트를 제조하는 방법.The pressing roller is a method of manufacturing a recyclable leather seat sewn using natural leather waste, characterized in that the thickness of the sheet can be adjusted by moving up and down on the conveyor belt. 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 4, 상기 가죽시트 제조단계(S400)에서,In the leather sheet manufacturing step (S400), 폴리우레탄 코팅이 실시된 상기 시트의 표면에 천연 가죽 질감의 돌기와 홈을 포함하는 무늬를 형성하는 엠보스 처리 과정이 더 추가 실시되는 것을 특징으로 하는 천연피혁 폐기물을 이용하여 봉제 가능한 재활용 가죽 시트를 제조하는 방법.Manufacturing a sewable recycled leather sheet using natural leather waste, characterized in that the embossing process for forming a pattern including a natural leather texture projections and grooves on the surface of the sheet subjected to the polyurethane coating is further performed. How to.
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CN102345250A (en) * 2010-07-29 2012-02-08 郑镇度 Method of manufacturing board with leather by-products and board manufactured by adopting the method
CN101956026A (en) * 2010-09-17 2011-01-26 谈国忠 Leather material and processing method thereof
CN101956026B (en) * 2010-09-17 2013-07-10 谈国忠 Leather material and processing method thereof
KR101242975B1 (en) * 2011-02-18 2013-03-12 김필원 Book cover manufacturing method
KR20170025341A (en) * 2015-08-28 2017-03-08 (주)아코플레닝 Method for manufacturing bonded sheet using recycling leather for automobile interior material
KR102429130B1 (en) 2015-08-28 2022-08-05 (주)아코플레닝 Method for manufacturing bonded sheet using recycling leather for automobile interior material
WO2017195962A1 (en) * 2016-03-10 2017-11-16 (주)아코플레닝 Method for producing recycled leather sheet by using leather fibers
KR101902936B1 (en) * 2017-02-06 2018-10-01 김기석 Leather fabrics made from pulp and its manufacturing method
CN114164680A (en) * 2021-11-23 2022-03-11 四川大学 Preparation method and application of durable antibacterial mildew-proof regenerated leather
KR102623305B1 (en) 2022-07-27 2024-01-10 조일산업주식회사 Manufacturing method of recycled leather using synthetic leather
KR102694870B1 (en) 2023-10-12 2024-08-12 주식회사 이앤알 Recycled leather sheets with web structures with light weight and flexibility and their manufacturing methods

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