KR101963083B1 - Method of preparing eco-friendly regenerated cowhide - Google Patents
Method of preparing eco-friendly regenerated cowhide Download PDFInfo
- Publication number
- KR101963083B1 KR101963083B1 KR1020180064615A KR20180064615A KR101963083B1 KR 101963083 B1 KR101963083 B1 KR 101963083B1 KR 1020180064615 A KR1020180064615 A KR 1020180064615A KR 20180064615 A KR20180064615 A KR 20180064615A KR 101963083 B1 KR101963083 B1 KR 101963083B1
- Authority
- KR
- South Korea
- Prior art keywords
- cowhide
- regenerated
- fabric
- present
- fibers
- Prior art date
Links
Images
Classifications
-
- 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
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/58—Drying
-
- 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
- C14B3/00—Milling leather
-
- 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
- C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4274—Rags; Fabric scraps
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Textile Engineering (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
Description
본 발명은 친환경 재생 소가죽의 제조방법에 관한 것으로, 보다 상세하게는 소가죽 제조시 발생하는 부산물이나 또는 폐기물에 폴리에스터 섬유를 넣어 소가죽 재생 원단을 제조하고 이를 환원제에 침지시켜 크롬을 제거한 친환경 재생 소가죽의 제조 방법에 관한 것이다.The present invention relates to a method for producing an environmentally friendly reclaimed leather, and more particularly, to a method for producing an environmentally friendly reclaimed leather by adding polyester fibers to by-products or wastes produced in the manufacture of leather, And a method of producing recycled cowhides.
일반적으로 가죽을 가공하는 공정은 먼저, 수침과 석회침을 통해 원피의 오물과 털을 제거한다. 할피(Splitting) 공정은 분할이라고도 하며, 석회침을 거친 나피(Pelt)를 원하는 두께로 나누는 공정이다. 유성(Tanning) 공정은 크롬을 이용하여 동물성 단백질을 광물성 단백질로 변성시킨다. 이러한 공정들을 거친 소가죽은 수분 함유량이 50~60%가 되도록 물짜기를 한 후 등급에 따라 두께를 조절한다. 또한, 두께가 조절된 원단은 염색, 건조, 밀링 및 엠보싱을 거쳐 가죽 원단이 최종적으로 만들어진다.In general, the process of processing the leather first removes dirt and hairs from the hides through soaking and lime. The splitting process is also called splitting, and is a process of dividing the pelt that has been lime-stained into the desired thickness. The tanning process uses chromium to denature animal proteins into mineral proteins. The cowhides after these processes are watered to have a moisture content of 50 to 60% and the thickness is adjusted according to the grade. Thickened fabrics are then dyed, dried, milled and embossed to finalize the leather fabrics.
상기 피혁 제조 공정 중에 특히 피혁의 두께 조절하는 과정 중에 불가피하게 고형 폐기물인 세이빙 가루 또는 스크랩이 발생하게 된다. 이러한 세이빙 조각 또는 스크랩을 재활용하여 재생 가죽을 제조하는 방법이 널리 알려져 있으며, 보통 자동차용 내장재, 실내 장식제 등으로 사용되고 있다. During the leather manufacturing process, shaving powder or scrap, which is inevitably solid waste, is inevitably generated during the process of adjusting the thickness of the leather. Methods for manufacturing recycled leather by recycling such scraps or scraps have been widely known and are generally used for automobile interior materials, interior decorations, and the like.
한국 등록 10-0815634호에는 세이빙 조각을 천연고무나 라텍스에 넣어 처리하는 단계, 방수, 난연제 등을 넣어 혼합하는 단계, 응고시키는 단계, 압착하여 시트를 제조하는 단계를 포함한 재생 피혁 시트 제조방법이 개시되어 있다. 상기 한국등록특허는 피혁 폐기물을 미세화하여 접착물질인 라텍스(Latex)를 단순 믹싱하여 접착하는 습식 방식에 의한 것으로 인장, 인열강도가 매우 약하고, 과도한 화학 약품의 사용으로 인해 2차 오염이나 환경문제가 발생하고, 또한, 소가죽 제조시 크롬을 사용하는 유성(Tanning) 공정으로 인해 소가죽 가루에는 크롬이 상당량 잔존한다는 문제점이 있었다. Korean Registered Patent No. 10-0815634 discloses a method for manufacturing a recycled leather sheet including steps of treating a shaving piece into natural rubber or latex, mixing waterproofing, flame retardant, etc., coagulating, and pressing to produce a sheet. . The Korean registered patent is based on the wet type method in which the latex (latex), which is an adhesive material, is finely made by simply mixing and bonding the leather wastes and is very weak in tensile and tear strength. Due to excessive use of chemicals, And a large amount of chromium remains in the cowhide powder due to the tanning process using chromium in the production of cowhide.
본 발명은 재생 섬유간 결합력을 높여 재생 소가죽 원단의 강도를 향상시키는 친환경 재생 소가죽 제조방법을 제공하는 것이다.The present invention provides a method for manufacturing an environmentally friendly reclaimed leather which improves the strength of the reclaimed leather raw material by increasing the bonding strength between the recycled fibers.
본 발명은 소가죽 가루에 잔존하는 크롬을 제거한 친환경 재생 소가죽 제조방법을 제공하는 것이다.The present invention provides a method for manufacturing an environmentally friendly reclaimed leather from which chromium remaining in leather is removed.
본 발명은 습식 공정을 줄여 공정을 단순화시키고 화학 약품 사용을 최소화한 친환경 재생 소가죽 제공방법을 제공하는 것이다.The present invention provides a method of providing an environmentally friendly reclaimed leather that simplifies the process by reducing the wet process and minimizes the use of chemicals.
본 발명의 하나의 양상은 One aspect of the present invention is
소가죽 가루, 조각, 부산물 또는 폐기물을 분쇄하여 소가죽 단섬유를 제조하는 단계 ;Pulverizing cowhide powder, flakes, by-products or waste to produce short staple fibers;
소가죽 단섬유에 폴리에스터 단섬유를 넣어 혼합하는 단계 ;Adding polyester staple fibers to the short staple fibers and mixing them;
혼합된 단섬유를 일정 두께로 압착하여 재생 원단을 제조하는 단계 ;Pressing the mixed short fibers to a predetermined thickness to produce a regenerated fabric;
재생 원단을 건조시키는 제 1 건조 단계 ;A first drying step of drying the regenerated fabric;
환원제 용액에 상기 재생 원단을 침지시키는 단계 ; 및Immersing the regenerated fabric in a reducing agent solution; And
상기 재생원단을 물로 세척한 후 건조시키는 제 2 건조 단계를 포함하는 재생 소가죽의 제조방법에 관련된다.And a second drying step of washing the regenerated fabric with water and drying the regenerated fabric.
본 발명은 소가죽 단섬유에 내구성과 탄성이 우수한 폴리에스터 섬유를 이용하여 강성이나 탄성이 우수한 재생 소가죽을 제공할 수 있다.INDUSTRIAL APPLICABILITY The present invention can provide a recycled leather excellent in rigidity and elasticity by using polyester fibers excellent in durability and elasticity in leather short staple fibers.
본 발명은 재생원단을 환원제 수용액에 침지시키는 방법으로 잔존하는 3가 크롬 이온을 6가 크롬 이온으로 전환되는 것을 억제 및 제거할 수 있다. 또한, 본 발명은 소가죽 섬유를 물을 사용해서 응고 후 건조시키는 습식방식이나 우레탄수지나 고무 수지에 혼합 반죽하는 방식에 비해 공정이 단순하고 가소제 등 화학 약품의 사용을 배제할 수 있다.The present invention can suppress and eliminate the conversion of residual trivalent chromium ions into hexavalent chromium ions by dipping the regenerated fabric in an aqueous solution of a reducing agent. In addition, the present invention can simplify the process and eliminate the use of chemicals such as plasticizers as compared with a wet process in which cowhide fiber is coagulated and dried by using water, or a process in which the process is mixed with urethane resin or rubber resin.
도 1은 본 발명의 재생 소가죽 제조 공정을 나타낸다.
도 2는 본 발명에서 제조된 재생 소가죽의 사진이다.
도 3은 본 발명에서 제조된 재생 소가죽의 크롬 검출 결과이다. Fig. 1 shows a process for producing recycled leather of the present invention.
2 is a photograph of the reclaimed leather produced in the present invention.
Fig. 3 shows the result of chromium detection of the reclaimed leather produced in the present invention.
이하에서는 첨부한 도면을 참조하여 본 발명의 실시 예를 상세히 설명한다. 본 발명의 실시 예를 설명함에 있어 관련된 공지 기능 또는 구성에 대한 구체적인 설명이 본 발명의 요지를 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명을 생략할 것이다. 또한, 후술 되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례 등에 따라 달라질 수 있다. 그러므로 그 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention of the user, the operator, or the custom. Therefore, the definition should be based on the contents throughout this specification.
도 1은 본 발명의 재생 소가죽 제조 공정을 나타내고, 도 2는 본 발명에서 제조된 재생 소가죽의 사진이고, 도 3은 본 발명에서 제조된 재생 소가죽의 크롬 검출 결과이다. Fig. 1 shows a process for producing a reclaimed leather of the present invention, Fig. 2 is a photograph of reclaimed leather produced in the present invention, and Fig. 3 shows a result of chromium detection for reclaimed leather produced in the present invention.
도 1을 참고하면, 본 발명은 분쇄단계, 혼합단계, 재생원단 제조단계, 제 1 건조 단계, 크롬 제거 단계 및 제 2 건조단계를 포함한다.Referring to FIG. 1, the present invention includes a grinding step, a mixing step, a regenerating fabric manufacturing step, a first drying step, a chrome removing step, and a second drying step.
상기 분쇄단계는 소가죽 가루, 조각, 부산물 또는 폐기물을 분쇄하여 소가죽 단섬유를 제조하는 단계이다. 예를 들면, 상기 분쇄단계는 상기 소가죽 가루 등을 60분 내지 120분 정도 비팅(beating) 처리하면 미세섬유가 노출되어 소가죽 단섬유를 얻을 수 있다. The pulverizing step is a step of pulverizing cowhide powder, flakes, by-products or wastes to produce leather short fibers. For example, in the pulverizing step, beech leather powder or the like is subjected to beating treatment for about 60 minutes to 120 minutes to expose the microfibers to obtain short-staple fibers.
상기 혼합단계는 소가죽 단섬유에 폴리에스터 섬유(단섬유)를 넣어 혼합하는 단계이다. 상기 폴리에스터 섬유는 강도, 내구성 및 복원율이 우수한 폴리에틸렌 테레프탈레이트(PET) 섬유일 수 있다. The mixing step is a step of mixing polyester fibers (short fibers) into short-beaten short fibers and mixing them. The polyester fiber may be a polyethylene terephthalate (PET) fiber having excellent strength, durability and recovery.
상기 소가죽 단섬유와 폴리에스터 섬유는 중량비로 99~80 : 1~20, 바람직하게는 95~85 : 5~15 일 수 있다. The bovine short staple fiber and the polyester fiber may be 99 to 80: 1 to 20, preferably 95 to 85: 5 to 15, by weight.
상기 재생원단 제조단계는 혼합된 단섬유를 일정 두께로 압착하여 재생 원단을 제조하는 단계이다. 상기 재생원단은 소가죽과 폴리에스터 섬유로 이루어진 천연가죽일 수 있다. In the step of fabricating the regenerated fabric, the regenerated fabric is manufactured by pressing the mixed short fibers to a predetermined thickness. The reclaimed fabric may be a natural leather consisting of cowhide and polyester fibers.
상기 재생원단 제조방법은 공지된 부직포 제조방법을 제한없이 사용할 수 있다. The reclaimed fabric manufacturing method may be any known manufacturing method of the nonwoven fabric.
한편, 상기 재생원단 제조방법은 혼합된 단섬유를 일정 두께로 압착하여 웹을 형성하고 여기에 수압으로 섬유를 교락(entangling)시키는 공지된 스펀레이스 공정을 사용할 수 있다. 즉, 본 발명은 고압의 물을 분사하여 단섬유들이 서로 얽히도록 하여 일정한 강도와 신도를 제공할 수 있다. Meanwhile, in the method of manufacturing the regenerated fabric, a known spun lace process may be used in which the mixed short fibers are compressed to a predetermined thickness to form a web and entangling the fibers with water pressure. That is, the present invention can provide uniform strength and elongation by injecting high-pressure water to entangle short fibers.
본 발명의 재생원단 제조방법은 니들을 이용하여 섬유들을 서로 얽히게 하는 니들펀치법을 배제하는 것은 아니다. 다만, 수압을 이용한 스펀레이스법은 섬유 교락방법으로 50㎏/㎠G이상의 고압수류(High Pressure Water Stream)를 사용하므로 섬유의 손상을 매우 효과적으로 회피할 수 있고, 따라서, 소가죽과 같은 고가의 원단을 제조하는데 유리하다.The method of manufacturing the regenerated fabric of the present invention does not exclude the needle punching method in which fibers are entangled with each other by using needles. However, since the high pressure water stream of 50 kg / cm < 2 > G or more is used as the fiber entanglement method by the spun lace method using the water pressure, the damage of the fiber can be avoided very effectively, ≪ / RTI >
이와 같이, 본 발명은 소가죽 단섬유에 내구성과 탄성이 우수한 폴리에스터 단섬유를 사용하므로 강성이나 탄성이 우수한 재생 소가죽을 제공할 수 있다. 또한, 본 발명은 소가죽 섬유를 물에 라텍스 등 고분자 수지와 함께 넣거나 우레탄수지나 고무 수지에 혼합 반죽하는 방식에 비해 건조과정 등 공정이 단순화되고 다양한 첨가제(가소제, pH 조절제, 접착제 등) 사용을 배제할 수 있다.As described above, since the polyester short fibers having excellent durability and elasticity are used for the short staple fibers of the present invention, a reclaimed leather excellent in rigidity and elasticity can be provided. In addition, the present invention simplifies the processes such as drying process and the use of various additives (plasticizers, pH adjusting agents, adhesives, etc.) compared to the method of mixing cowhide fiber with water, polymer resin such as latex or mixing with urethane resin or rubber resin Can be excluded.
상기 제 1 건조단계는 재생원단을 자연건조시키거나 진공펌프를 사용하여 탈수하거나, 프레스로 압착하거나 히터 등으로 가열하여 건조시킬 수 있다. 상기 제 1 건조 단계는 재생원단의 수분이 잔존하지 않도록 한다.In the first drying step, the regenerated fabric may be dried naturally or dewatered by using a vacuum pump, compressed by a press, heated by a heater, or the like. The first drying step prevents moisture from the regenerated fabric from remaining.
상기 크롬 제거 단계는 환원제 용액에 상기 재생 원단을 침지시키는 단계이다. 상기 환원제로는 탄산칼슘, 탄산리튬, 아황산수소나트륨을 사용할 수 있으며, 바람직하게는 아황산수소나트륨을 사용할 수 있다. 상기 크롬 제거 단계는 고형분 10%이하의 아황산수소나트륨을 사용할 수 있다. The chromium removal step is a step of immersing the regenerated fabric in a reducing agent solution. As the reducing agent, calcium carbonate, lithium carbonate and sodium hydrogen sulfite can be used, and sodium hydrogen sulfite can be preferably used. The chromium removal step may use sodium hydrogen sulfite having a solid content of 10% or less.
제 1 건조단계를 통해 건조된 재생원단은 환원제 수용액에 침지되면 환원제가 6가 크롬과 보다 빠르게 반응하여 3가 크롬으로 변환될 수 있다. If the regenerated fabric dried through the first drying step is immersed in the reducing agent aqueous solution, the reducing agent reacts with hexavalent chromium more rapidly and can be converted into trivalent chromium.
상기 크롬 제거 단계는 환원제 수용액으로부터 재생원단을 분리한 후 재생원단을 물로 세척하고, 상기 세척수와 환원제 수용액을 혼합하여 외부로 배출할 수 있다. 따라서, 본 발명은 재생원단을 환원제 수용액에 침지시키는 방법으로 잔존하는 3가 크롬 이온을 6가 크롬 이온으로 전환되는 것을 억제 및 제거할 수 있다. In the chrome removing step, the regenerated fabric is separated from the reducing agent aqueous solution, the regenerated fabric is washed with water, and the washing water and the reducing agent aqueous solution are mixed and discharged to the outside. Therefore, the present invention can suppress and remove the residual trivalent chromium ions from being converted into hexavalent chromium ions by immersing the regenerated fabric in an aqueous solution of the reducing agent.
제 2 건조 단계는 재생원단을 열을 가해 수분을 제거하는 단계이다. 예를 들면, 제 2 건조단계는 열을 가하기 전에 탈수 등으로 물을 어느 정도 제거한 후 히터로 건조시킬 수 있다.The second drying step is a step of removing heat by applying heat to the regenerated fabric. For example, in the second drying step, water may be removed to some extent by dehydration or the like before the application of heat, followed by drying with a heater.
이와 같이, 본 발명의 방법은 재생 원단에 필수적으로 함유되는 크롬을 제거할 수 있으며, 건식 공정을 이용하므로 화학약품 사용을 하지 않으며, 스펀레이스 공정을 이용하므로 소가죽 섬유의 손상없이 재생 소가죽 원단을 제공할 수 있다. As described above, the method of the present invention can remove chromium, which is essentially contained in the regenerated fabric, and does not use chemicals due to the use of a dry process. By using the spun lace process, Can be provided.
다른 양상에서 본 발명은 재생소가죽 제조방법으로 제조한 재생 소가죽 원단에 관련된다. 도 2는 본 발명에서 제조한 소가죽 재생원단(샘플 2개)의 사진이다. 상기 재생 원단은 소가죽 섬유와 폴리에스터 섬유가 압착되어 형성된다. 상기 소가죽 단섬유와 폴리에스터 단섬유는 중량비로 99~80 : 1~20, 바람직하게는 95~85 : 5~15 일 수 있다. In another aspect, the present invention relates to a recycled cowhide fabric produced by the method of manufacturing recycled cowhide. Fig. 2 is a photograph of the cowhide regenerated fabrics (two samples) manufactured in the present invention. The regenerated fabric is formed by squeezing cowhide fibers and polyester fibers. The leather short fibers and the polyester short fibers may be 99 to 80: 1 to 20, preferably 95 to 85: 5 to 15, by weight.
상기 재생 소가죽 원단은 아황산수소나트륨 등의 환원제를 이용하여 크롬을 제거하였다. The chrome was removed by using a reducing agent such as sodium hydrogen sulfite.
도 3은 도 2의 재생원단을 공인시험기관에 의뢰해서 받은 시험 성적서이다. 도 3을 참고하면, 상기 소가죽 재생원단(샘플 2개 모두)에는 크롬 6가가 검출되지 않았음을 확인할 수 있다.Fig. 3 is a test report obtained by requesting the regenerated fabric of Fig. 2 to an accredited testing laboratory. Referring to FIG. 3, it can be confirmed that chromium 6 was not detected in the leather reclaimed fabric (both samples).
본 발명이 속하는 기술분야에서 통상의 지식을 가진 자는 본 발명의 본질적인 특성에서 벗어나지 않는 범위에서 변형된 형태로 구현될 수 있음을 이해할 수 있을 것이다. 그러므로 개시된 실시예들은 한정적인 관점이 아니라 설명적인 관점에서 고려되어야 한다. 따라서 본 발명의 범위는 전술한 실시예에 한정되지 않고 특허청구범위에 기재된 내용 및 그와 동등한 범위 내에 있는 다양한 실시 형태가 포함되도록 해석되어야 할 것이다. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. Therefore, the scope of the present invention is not limited to the above-described embodiments, but should be construed to include various embodiments within the scope of the claims and equivalents thereof.
Claims (4)
소가죽 단섬유에 폴리에스터 단섬유를 넣어 혼합하는 단계 ;
혼합된 단섬유를 일정 두께로 압착하여 웹을 형성하고, 여기에 수압으로 섬유를 교락(entangling)시켜 재생 원단을 제조하는 단계 ;
재생 원단을 건조시키는 제 1 건조 단계 ;
아황산수소나트륨 수용액에 상기 재생 원단을 침지시켜 6가 크롬을 제거하는 단계 ; 및
상기 재생원단을 물로 세척한 후 건조시키는 제 2 건조 단계를 포함하고,
상기 소가죽 단섬유와 폴리에스터 섬유는 중량비로 95~85 : 5~15인 것을 특징으로 하는 재생 소가죽의 제조방법. Producing a short staple fiber that is pulverized and beating crumb leather powder, sculpture, by-product or waste to expose the microfibers;
Adding polyester staple fibers to the short staple fibers and mixing them;
Pressing the mixed staple fibers to a predetermined thickness to form a web, and entangling the fibers with water pressure to produce a regenerated fabric;
A first drying step of drying the regenerated fabric;
Immersing the regenerated fabric in an aqueous sodium hydrogen sulfite solution to remove hexavalent chromium; And
And a second drying step of washing the regenerated fabric with water and drying the regenerated fabric,
Wherein the leather short fibers and the polyester fibers are 95 to 85: 5 to 15 by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020180064615A KR101963083B1 (en) | 2018-06-05 | 2018-06-05 | Method of preparing eco-friendly regenerated cowhide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020180064615A KR101963083B1 (en) | 2018-06-05 | 2018-06-05 | Method of preparing eco-friendly regenerated cowhide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR101963083B1 true KR101963083B1 (en) | 2019-03-27 |
Family
ID=65906838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020180064615A KR101963083B1 (en) | 2018-06-05 | 2018-06-05 | Method of preparing eco-friendly regenerated cowhide |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101963083B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102229750B1 (en) * | 2019-11-14 | 2021-03-18 | 엄기천 | Method of preparing nontoxic synthesis leather |
| KR20230037769A (en) | 2021-09-10 | 2023-03-17 | 현대자동차주식회사 | Eco-friendly automotive interior parts and manufacturing method thereof |
| KR20230152275A (en) * | 2022-04-27 | 2023-11-03 | 엄기천 | Method for manufacturing of eco frendly recycle leather wall paper |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR940018468A (en) * | 1993-01-09 | 1994-08-18 | 조갑선 | Recycled leather based on leather waste and its manufacturing method |
| JPH08109399A (en) * | 1994-10-13 | 1996-04-30 | New Oji Paper Co Ltd | High-density regenerated leather |
| JP2003535989A (en) * | 2000-06-02 | 2003-12-02 | ビー アンド エイチ リサーチ リミテッド | Formation of sheet material using hydroentanglement |
| JP2008501868A (en) * | 2004-06-03 | 2008-01-24 | イー−レザー リミテッド | Formation of leather sheet material using hydroentanglement |
| KR20120125032A (en) * | 2011-05-06 | 2012-11-14 | (주)근대기업 | A processing method for natural leather |
-
2018
- 2018-06-05 KR KR1020180064615A patent/KR101963083B1/en active IP Right Grant
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR940018468A (en) * | 1993-01-09 | 1994-08-18 | 조갑선 | Recycled leather based on leather waste and its manufacturing method |
| JPH08109399A (en) * | 1994-10-13 | 1996-04-30 | New Oji Paper Co Ltd | High-density regenerated leather |
| JP2003535989A (en) * | 2000-06-02 | 2003-12-02 | ビー アンド エイチ リサーチ リミテッド | Formation of sheet material using hydroentanglement |
| JP2008501868A (en) * | 2004-06-03 | 2008-01-24 | イー−レザー リミテッド | Formation of leather sheet material using hydroentanglement |
| KR20120125032A (en) * | 2011-05-06 | 2012-11-14 | (주)근대기업 | A processing method for natural leather |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102229750B1 (en) * | 2019-11-14 | 2021-03-18 | 엄기천 | Method of preparing nontoxic synthesis leather |
| KR20230037769A (en) | 2021-09-10 | 2023-03-17 | 현대자동차주식회사 | Eco-friendly automotive interior parts and manufacturing method thereof |
| KR20230152275A (en) * | 2022-04-27 | 2023-11-03 | 엄기천 | Method for manufacturing of eco frendly recycle leather wall paper |
| KR102618959B1 (en) * | 2022-04-27 | 2023-12-28 | 주식회사 에이치블루 | Method for manufacturing of eco frendly recycle leather wall paper |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101963083B1 (en) | Method of preparing eco-friendly regenerated cowhide | |
| US10612103B2 (en) | Manufacturing method of recycling leather sheet using fiber of leather | |
| KR20190000051A (en) | Method for manufacturing of Upcycling leather sheet material using collagen long fiber | |
| US10138595B1 (en) | Dispersion processing aids for the formation of a leather material | |
| US10131096B1 (en) | High strength leather material | |
| KR20130006435A (en) | Restoring leather and method for making the same | |
| KR20170010998A (en) | Process for preparing a regenerated leather based on leather processing wastes | |
| Sivakumar et al. | Sustainable solid waste management in leather and textile industry: leather & textile waste fibre-polymer composite and nanocomposite–overview and review | |
| Basak et al. | Development of natural fibre based flexural composite: A sustainable mimic of natural leather | |
| KR102448149B1 (en) | Manufacturing method of recycle leather sheet | |
| CN102586899B (en) | Method for extracting spinnable collagenous fiber from leather corner waste and waste leather | |
| US10618199B1 (en) | High strength leather material | |
| KR100186842B1 (en) | A treating agent for hides, furs, natural fibers and textile goods comprising said natural fiber as a major component, and a treating method using said agent | |
| KR0182241B1 (en) | Manufacturing process of industrial law material using waste leather and said material | |
| KR102618959B1 (en) | Method for manufacturing of eco frendly recycle leather wall paper | |
| KR100906935B1 (en) | How to manufacture midsole for high performance shoes | |
| CN107099884A (en) | A kind of kraft fibers production technology | |
| WO2022008022A1 (en) | Nonwoven keratin-based footwear part | |
| KR20220026364A (en) | Method for manufacturing of eco frendly recycle leather wall paper | |
| CN108468228B (en) | Preparation method of cow hair powder filler modified oil-based polyurethane wet-process bass | |
| KR20020090938A (en) | High performance airing insole made of textile waste and process therefor | |
| Sumathi et al. | Physico-chemical properties of reconstituted fibers composite prepared from leather waste | |
| KR100322139B1 (en) | Manufacture method and there material of leather like material | |
| KR102694870B1 (en) | Recycled leather sheets with web structures with light weight and flexibility and their manufacturing methods | |
| US1900951A (en) | Manufacture of rubber-impregnated products |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant |