KR102485971B1 - Manufacturing method of natural leather material having excellent self recovering property and scratch resistance property and natural leather material using the same - Google Patents
Manufacturing method of natural leather material having excellent self recovering property and scratch resistance property and natural leather material using the same Download PDFInfo
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- KR102485971B1 KR102485971B1 KR1020210123783A KR20210123783A KR102485971B1 KR 102485971 B1 KR102485971 B1 KR 102485971B1 KR 1020210123783 A KR1020210123783 A KR 1020210123783A KR 20210123783 A KR20210123783 A KR 20210123783A KR 102485971 B1 KR102485971 B1 KR 102485971B1
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Images
Classifications
-
- 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
- C14C11/00—Surface finishing of leather
- C14C11/003—Surface finishing of leather using macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/002—Priming paints
-
- 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
- C14C1/04—Soaking
-
- 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
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/04—Mineral tanning
- C14C3/06—Mineral tanning using chromium compounds
-
- 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
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/08—Chemical tanning by organic agents
-
- 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
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/30—Chemical tanning using physical means combined with chemical means
-
- 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
- C14C9/02—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes using fatty or oily materials, e.g. fat liquoring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
Description
본 발명은 천연가죽에 자가복원 코팅층을 형성하여 자가복원성을 부여함으로써 표면의 내스크래치성 등을 개선시킬 수 있도록 하는 천연가죽 소재의 제조방법 및 이 방법에 의해 제조된 천연가죽 소재에 관한 것이다.The present invention relates to a method for manufacturing a natural leather material capable of improving surface scratch resistance by forming a self-healing coating layer on natural leather to impart self-healing properties, and to a natural leather material manufactured by the method.
외부의 접촉으로 인한 표면 손상 문제는 천연가죽이 럭셔리 소재로 이용된 이래로 지속적인 문제점으로 인식되어왔으며, 이러한 문제점을 합성 가죽 및 기타 소재로 대체하거나 후처리에 의한 복원으로만 단순 극복하고 있어 근본적인 해결책은 현재까지 개발되지 않고 있다.The problem of surface damage due to external contact has been recognized as a continuous problem since natural leather was used as a luxury material, and this problem is simply overcome by replacing it with synthetic leather and other materials or restoring it by post-processing, so the fundamental solution is It has not been developed to date.
한편, 천연가죽을 이용한 기존 기술 개발의 경우 물, 유분 등 화학적인 오염에 저항하는 내오염성이나 콜라겐의 내부의 결합성을 강화하여 형태 변화를 저감하는 연구를 진행하였지만, 가죽 표면의 물리적인 상처를 자가복원 방식으로 저항성을 가지도록 하는 방법은 전무하다.On the other hand, in the case of the existing technology development using natural leather, research was conducted to reduce the change in shape by strengthening the stain resistance to resist chemical contamination such as water and oil or the internal bonding of collagen, but the physical damage to the leather surface There is no way to make it resistant by self-healing method.
일반적으로 말하는 스크래치의 경우 외부의 물리적인 자극에 의한 영구적인 상처를 의미하며, 오염이란 외부의 화학적인 물질에 의한 기존의 형태에서의 변형을 뜻한다. 즉, 가죽의 표면에 자가복원 성능을 부여한다면 물리적인 상처에 대한 극복으로 내스크래치성을 가질 수 있으며 또한 특정 화학적인 오염에서도 저항성을 가질 수 있을 것이다.In the case of a generally speaking scratch, it means a permanent wound caused by an external physical stimulus, and contamination means a transformation from an existing shape by an external chemical substance. That is, if self-healing performance is given to the surface of leather, it can have scratch resistance by overcoming physical wounds and also have resistance to specific chemical contamination.
관련 선행기술로써 특허문헌 1에서는 폴리카프로락톤 고분자를 이용한 선형 초분자체 및 비선형 초분자체로 이루어지는 스크래치 자가치유형 코팅제를 제안하였다.As a related prior art, Patent Document 1 proposed a scratch self-healing type coating agent composed of a linear supramolecular sieve and a nonlinear supramolecular sieve using a polycaprolactone polymer.
하지만, 상기 특허문헌 1과 같은 종래기술은 실제 자가복원성이 미비할 뿐만 아니라 이로 인해 가방 등의 천연가죽 제품에 대한 내스크래치성 등을 만족시키지 못하는 문제점이 있었다.However, the prior art, such as Patent Document 1, has a problem in that it does not satisfy the scratch resistance of natural leather products such as bags as well as the actual self-restoration property is insufficient.
본 발명은 상기와 같은 문제점을 해결하기 위한 것으로, 가방 등의 소재로 사용되는 천연가죽에 자가복원 코팅층을 형성하여 자가복원성을 부여함으로써 표면의 내스크래치성 등을 개선시킬 수 있도록 함을 과제로 한다.The present invention is to solve the above problems, and an object of the present invention is to improve the scratch resistance of the surface by forming a self-healing coating layer on natural leather used as a material for bags and the like to impart self-healing properties. .
본 발명은 천연가죽 소재의 제조방법에 있어서, 천연가죽을 수세하는 수세 단계(S100); 상기 수세 단계를 거친 천연가죽을 리탄닝 및 중화 용액을 이용하여 리탄닝 및 중화처리하는 리탄닝 및 중화 단계(S200); 상기 리탄닝 및 중화 단계를 거친 천연가죽을 가지 용액을 이용하여 가지 처리하는 가지 단계(S300); 및 상기 가지 단계를 거친 천연가죽의 표면에 자가복원 코팅층을 형성시키는 코팅단계(S400);을 포함하는 것을 특징으로 하는, 자가복원성 및 내스크래치성이 우수한 천연가죽 소재의 제조방법 및 이 방법에 의해 제조된 천연가죽 소재를 과제의 해결 수단으로 한다.The present invention is a method for manufacturing a natural leather material, comprising: a water washing step (S100) of washing natural leather; A retanning and neutralizing step (S200) of retanning and neutralizing the natural leather that has gone through the washing step using a retanning and neutralizing solution; Eggplant processing (S300) of processing the natural leather that has undergone the retanning and neutralization steps using an eggplant solution; and a coating step (S400) of forming a self-healing coating layer on the surface of the natural leather that has undergone the foregoing step (S400). The manufactured natural leather material is used as a solution to the problem.
본 발명은 가방 등의 소재로 사용되는 천연가죽에 자가복원 코팅층을 형성하여 자가복원성을 부여함으로써 표면의 내스크래치성 등을 개선시킬 수 있는 효과가 있다.The present invention has an effect of improving the scratch resistance of the surface by forming a self-healing coating layer on natural leather used as a material such as a bag to impart self-healing property.
도 1은 본 발명에 따른 천연가죽 소재의 제조방법을 나타낸 공정 흐름도1 is a process flow chart showing a method for manufacturing a natural leather material according to the present invention
상기의 효과를 달성하기 위한 본 발명은 자가복원성 및 내스크래치성이 우수한 천연가죽 소재의 제조방법 및 이 방법에 의해 제조된 천연가죽 소재에 관한 것으로서, 본 발명의 기술적 구성을 이해하는데 필요한 부분만이 설명되며 그 이외 부분의 설명은 본 발명의 요지를 흩트리지 않도록 생략될 것이라는 것을 유의하여야 한다.The present invention for achieving the above effect relates to a method for manufacturing a natural leather material having excellent self-healing and scratch resistance and a natural leather material manufactured by this method, and only the parts necessary to understand the technical configuration of the present invention are provided. It should be noted that the description of other parts will be omitted so as not to obscure the subject matter of the present invention.
이하, 본 발명에 따른 자가복원성 및 내스크래치성이 우수한 천연가죽 소재의 제조방법 및 이 방법에 의해 제조된 천연가죽 소재를 상세히 설명하면 다음과 같다.Hereinafter, a method for manufacturing a natural leather material having excellent self-restoration and scratch resistance according to the present invention and a natural leather material manufactured by the method will be described in detail as follows.
본 발명은 천연가죽 소재의 제조방법 및 이 방법에 의해 제조된 천연가죽 소재에 있어서, 도 1에 도시된 바와 같이, 수세 단계(S100), 리탄닝 및 중화 단계(S200), 가지 단계(S300) 및, 코팅단계(S400)를 포함하여 구성된다.The present invention relates to a method for manufacturing a natural leather material and a natural leather material manufactured by the method, as shown in FIG. And, it is configured to include a coating step (S400).
상기 수세 단계(S100)는 천연가죽을 수세하여 세척하기 위한 것으로, 물 100 중량부에 대하여, 계면활성제 0.3 ~ 0.5 중량부를 혼합한 혼합 용액을 이용하여 20 ~ 25분간 수세처리한다. 여기서, 상기 계면활성제는 EA-120(dow사) 등을 사용할 수 있으나 여기에 한정되는 것은 아니고 이미 공지된 다양한 계면활성제의 사용이 가능하다.The water washing step (S100) is for washing natural leather with water, and is washed with water for 20 to 25 minutes using a mixed solution in which 0.3 to 0.5 parts by weight of a surfactant is mixed with respect to 100 parts by weight of water. Here, the surfactant can be used, such as EA-120 (dow), but is not limited thereto, and various surfactants known in the art can be used.
상기 리탄닝 및 중화 단계(S200는, 육면가죽 내 콜라겐 성분의 메트릭스 내부에 리탄닝제를 침투시켜 처리함으로써 육면가죽의 방수성, 통기성 및 경량성 등을 향상시키고, 또한 천연가죽 내의 콜라켄이나 또는 크롬착염에 결합하고 있는 산을 제거하여 가죽에 유연성을 부여하여 부드럽게 하기 위한 것으로, 상기 수세 단계를 거친 천연가죽을 리탄닝(retanning) 및 중화 용액을 이용하여 리탄닝 및 중화처리하며, 보다 구체적으로는 물 100 중량부에 대하여, 크롬(Chrome) 1.3 ~ 2.0 중량부, 유제간 가지제 1.3 ~ 2.0 중량부, 알데히드 신탄(Aldehyde syntan) 3.3 ~ 5 중량부 및 탄산수소나트륨(NaHCO3) 0.6 ~ 1.0 중량부를 혼합한 리탄닝 및 중화 용액과 천연가죽을 드럼에 투입한 후, 40 ~ 50℃에서 180 ~ 200분간 회전시켜 리탄닝 및 중화 처리한다.In the retanning and neutralization step (S200), the retanning agent is infiltrated into the matrix of the collagen component in the leather, thereby improving the waterproofness, air permeability, and lightness of the leather, and collagen or chrome complex salt in the natural leather. In order to soften the leather by removing the acid bound to it, the natural leather that has gone through the water washing step is retanned and neutralized using a retanning and neutralizing solution, and more specifically, water Based on 100 parts by weight, 1.3 to 2.0 parts by weight of chrome, 1.3 to 2.0 parts by weight of fatliquoring agent, 3.3 to 5 parts by weight of aldehyde syntan, and 0.6 to 1.0 parts by weight of sodium bicarbonate (NaHCO 3 ) After putting the mixed retanning and neutralizing solution and natural leather into a drum, it is rotated at 40 to 50°C for 180 to 200 minutes to perform retanning and neutralization.
그리고, 상기와 같이 리탄닝 및 중화처리가 완료되면 리탄닝 및 중화 용액을 드럼으로부터 배출시킨 다음 리탄닝 및 중화 처리한 천연가죽에 함침된 리탄닝 및 중화 용액이 제거될 수 있도록 3 ~ 4회 수세처리하고 건조시킨다.In addition, when the retanning and neutralization treatment is completed as described above, the retanning and neutralization solution is discharged from the drum, and then washed with water 3 to 4 times to remove the retanning and neutralization solution impregnated in the retanned and neutralized natural leather. Treat and dry.
여기서, 상기 유제간 가지제는 Lipoderm licker SO(BASF사) 등을 사용할 수 있고, 알데히드 신탄은 Novaltan PF(Zschimmer & Schwarz사) 등을 사용할 수 있으나 반드시 여기에 한정되는 것은 아니고 이미 공지된 다양한 유제간 가지제 및 알데히드 신탄의 사용이 가능하다. Here, Lipoderm licker SO (BASF Co.), etc. can be used as the fatliquoring agent for tanning, and Novaltan PF (Zschimmer & Schwarz Co.) can be used as the aldehyde syntan, but it is not necessarily limited thereto. The use of fatliquoring agents and aldehyde syntans is possible.
한편, 상기 리탄닝 및 중화 용액의 조성비 및 처리 조건이 상기 범위를 벗어날 경우 리탄닝 및 중화 처리 효과가 미비해질 우려가 있다.On the other hand, if the composition ratio and treatment conditions of the retanning and neutralization solution are out of the above ranges, there is a concern that the retanning and neutralization treatment effect may be insufficient.
상기 가지 단계(S300)는, 육면가죽 내에 함유된 콜라겐과 같은 단백질 내부에 가지제를 침투시켜 천연가죽의 유연성을 부여하여 부드러운 특성을 향상시키는 작용을 하는 것으로, 상기 리탄닝 및 중화 단계를 거친 천연가죽을 가지 용액을 이용하여 가지(Fatliquoring) 처리하며, 보다 구체적으로 물 100 중량부에 대하여, 황산화 가지제 4.5 ~ 5.5 중량부, 인산화 가지제 4.5 ~ 5.5 중량부, 항균성 마이크로캡슐(microcapsule) 0.4 ~ 0.6 중량부 및 포름산(Formic acid) 1.0 ~ 1.5 중량부를 혼합한 가지 용액 및 천연가죽을 드럼에 투입한 후, 45 ~ 55℃에서 160 ~ 200분간 회전시켜 가치 처리한다.In the branching step (S300), the fatliquoring agent is penetrated into the protein such as collagen contained in the leather to impart flexibility to the natural leather and improve softness. The leather is fatliquoring treated using an eggplant solution, and more specifically, 4.5 to 5.5 parts by weight of a sulfated fatliquoring agent, 4.5 to 5.5 parts by weight of a phosphorylated fatliquoring agent, and 0.4 antibacterial microcapsules based on 100 parts by weight of water. ~ 0.6 part by weight and formic acid (Formic acid) 1.0 ~ 1.5 parts by weight of mixed eggplant solution and natural leather are put into the drum, and then rotated at 45 ~ 55 ℃ for 160 ~ 200 minutes to value treatment.
그리고, 상기와 같이 가지 처리가 완료되면 가지 용액을 드럼으로부터 배출시킨 다음 가지 처리한 육면가죽에 함침된 가지 용액이 제거될 수 있도록 3 ~ 4회 수세처리하고 건조시킨다.When the eggplant treatment is completed as described above, the eggplant solution is discharged from the drum, and then the eggplant solution impregnated in the eggplant skin is washed with water 3 to 4 times and dried.
여기서, 상기 황산화 가지제는 LIPSOL BSFR(S&S)(Schill&Seilacher사) 등을 사용할 수 있고, 인산화 가지제는 PNS-PB(피엔에스사) 등을 사용할 수 있으며, 항균성 마이크로캡슐은 S-pine microcapsule(polychrom사) 등을 사용할 수 있으나 반드시 여기에 한정되는 것은 아니고 이미 공지된 다양한 황산화 가지제, 인산화 가지제 및 항균성 마이크로캡슐의 사용이 가능하다. Here, LIPSOL BSFR (S&S) (Schill & Seilacher) may be used as the sulfated fatliquoring agent, PNS-PB (PNS) may be used as the phosphorylated fatliquoring agent, and the antibacterial microcapsule may be S-pine microcapsule ( polychrom), etc. can be used, but it is not necessarily limited thereto, and various previously known sulfated fatliquoring agents, phosphorylated fatliquoring agents, and antibacterial microcapsules can be used.
한편, 상기 가지 용액의 조성비 및 처리 조건이 상기 범위를 벗어날 경우 가지 처리 효과가 미비해질 우려가 있다.On the other hand, if the composition ratio and treatment conditions of the eggplant solution are out of the above ranges, there is a concern that the eggplant treatment effect may be insufficient.
상기 코팅단계(S400)는 자가 복원성을 부여하기 위한 것으로, 스프레이(Spray) 방식으로 베이스 코팅(Base coating), 미디움 코팅(Medium coating) 및 탑 코팅(Top coating)을 수행한 후, 프라이머(Primer)를 매개로 자가복원 코팅층을 형성시킨다.The coating step (S400) is for imparting self-restoration, and after performing base coating, medium coating, and top coating in a spray method, primer A self-healing coating layer is formed through the medium.
보다 구체적으로 상기 베이스 코팅은 물 100 중량부에 대하여, 제 1 아크릴 바인더(Acryl binder) 51 ~ 61 중량부, 제 2 아크릴 바인더 34 ~ 40 중량부, 제 1 우레탄 바인더(Urethane binder) 17 ~ 25 중량부, 제 2 우레탄 바인더 27 ~ 33 중량부, 왁스(Wax) 27 ~ 33 중량부 및 레벨링제(Leveller) 17 ~ 20 중량부로 이루어지는 코팅액으로 코팅한 후 90 ~ 95℃에서 2 ~ 3kg/cm2으로 가압하여 형성시킨다.More specifically, the base coating is based on 100 parts by weight of water, a first acrylic binder 51 to 61 parts by weight, the second acrylic binder 34 to 40 parts by weight, the first urethane binder 17 to 25 parts by weight, 27 to 33 parts by weight of the second urethane binder, 27 to 33 parts by weight of wax, and 17 to 20 parts by weight of leveling agent. / cm 2 and formed by pressing.
그리고, 상기 미디움 코팅은 물 100 중량부에 대하여, 제 1 아크릴 바인더 37 ~ 40 중량부, 제 2 아크릴 바인더 18 ~ 22 중량부, 제 1 우레탄 바인더 37 ~ 42 중량부, 제 3 우레탄 바인더 55 ~ 60 중량부, 왁스 29 ~ 33 중량부 및 레벨링제 18 ~ 22 중량부로 이루어지는 코팅액으로 코팅한 후 90 ~ 95℃에서 2 ~ 3kg/cm2으로 가압하여 형성시킨다.And, the medium coating is based on 100 parts by weight of water, 37 to 40 parts by weight of the first acrylic binder, 18 to 22 parts by weight of the second acrylic binder, the first urethane binder 37 to 42 parts by weight, 55 to 60 parts by weight of a third urethane binder, 29 to 33 parts by weight of wax, and 18 to 22 parts by weight of a leveling agent, and then coated with a coating solution at 90 to 95 ° C. form
또한, 상기 탑 코팅은 물 100 중량부에 대하여, 제 4 우레탄 바인더 133 ~ 140 중량부, 불소계 공중합체(Fluoroacrylate copolymer) 10 ~ 20 중량부 및 실리콘 에멀젼(Modified sikicone emulsion) 23 ~ 25 중량부로 이루어지는 코팅액으로 코팅한 후 90 ~ 95℃에서 2 ~ 3kg/cm2으로 가압하여 형성시킨다.In addition, the top coating is based on 100 parts by weight of water, 133 to 140 parts by weight of the fourth urethane binder, 10 to 20 parts by weight of a fluoroacrylate copolymer and 23 to 25 parts by weight of a modified sikicone emulsion Coating solution After coating with 2 ~ 3kg / cm 2 at 90 ~ 95 ℃ 2 It is formed by pressing.
여기서, 제 1 아크릴 바인더는 Primal SB-300(Bayer사) , 제 2 아크릴 바인더는 HPB-980(Rohm & Hass사), 제 1 우레탄 바인더는 Tan ST(벽산특수화학사), 제 2 우레탄 바인더는 Bottom CTR(lanxess사), 제 3 우레탄 바인더는 UD 51(lanxess사), 왁스는 Wax SP(벽산특수화학사), 레벨링제는 Leveller S(벽산특수화학사), 제 4 우레탄 바인더는 Brillark W2(Fenice사), 불소계 공중합체는 Aquaderm X-shied L2(Lanxess사), 실리콘 에멀젼은 Melio 06-F-76(Clariant사) 등을 사용할 수 있지만, 반드시 여기에 한정되는 것은 아니고 이미 공지된 다양한 베이스 코팅, 미디움 코팅, 탑 코팅용 조성의 적용이 가능하다.Here, the first acrylic binder is Primal SB-300 (Bayer Co.), the second acrylic binder is HPB-980 (Rohm & Hass Co.), the first urethane binder is Tan ST (Byucksan Special Chemical Co.), and the second urethane binder is Bottom CTR (lanxess), the 3rd urethane binder is UD 51 (lanxess), the wax is Wax SP (byucksan special chemical company), the leveling agent is Leveller S (byucksan special chemical company), the 4th urethane binder is Brillark W2 (Fenice company) , Aquaderm X-shied L2 (Lanxess) for the fluorine-based copolymer, and Melio 06-F-76 (Clariant) for the silicone emulsion, but not necessarily limited thereto, and various base coatings and medium coatings already known. , the application of a composition for top coating is possible.
아울러, 상기 프라이머는 물 100 중량부에 대하여, 카치온 바인더 19 ~ 25 중량부, 파라핀 왁스 14 ~20 중량부, 카치온 바인더 프라이머 35 ~ 40 중량부, 카제인 30 ~ 35 중량부 및 오일 23 ~ 27 중량부로 이루어지는 프라이머를 1차 스프레이 하고 110 ~ 120℃에서 40 ~ 45kgf으로 1차 가압한 후, 다시 2차 스프레이하고 110 ~ 120℃에서 30 ~ 35kgf으로 2차 가압하여 형성시킨다.In addition, the primer is composed of 19 to 25 parts by weight of cation binder, 14 to 20 parts by weight of paraffin wax, 35 to 40 parts by weight of cation binder primer, 30 to 35 parts by weight of casein, and 23 to 27 parts by weight of oil, based on 100 parts by weight of water. The primer is formed by first spraying, first pressing at 40 to 45 kgf at 110 to 120 ° C, then second spraying, and second pressing at 30 to 35 kgf at 110 to 120 ° C.
여기서, 카치온 바인더는 LE-1175(stahl사) 19 ~ 25 중량부, 파라핀 왁스는 WAX-PU(벽산특수화학사), 카치온 바인더 프라이머는 C/T BINDER-D(stahl사), 카제인은 CA-3013 C(stahl사), 오일은 GROUND-K(stahl사) 등을 사용할 수 있지만, 반드시 여기에 한정되는 것은 아니고 이미 공지된 다양한 프라이머용 조성의 적용이 가능하다.Here, cation binder is LE-1175 (stahl company) 19 ~ 25 parts by weight, paraffin wax is WAX-PU (byucksan special chemical company), cation binder primer is C / T BINDER-D (stahl company), casein is CA-3013 C (stahl company), GROUND-K (stahl company), etc. can be used for oil, but it is not necessarily limited thereto, and various previously known primer compositions can be applied.
그리고, 자가복원 코팅층은 이액형 자가복원코팅제 주제 100 중량부에 대하여, 이액형 자가복원코팅제 경화제 20 ~ 30 중량부 및 이액형 자가복원코팅제용 희석제 60 ~ 70 중량부를 혼합한 코팅액을 스프레이 하고, 80 ~ 85℃에서 1 ~ 2시간 열경화 시킨 후, 40 ~ 45℃에서 12 ~ 13시간 1차 에이징 및 상온(약 15 ~ 25℃)에서 7 ~ 8일 2차 에이징하고, 90 ~ 95℃에서 1 ~ 2kg/cm2으로 가압하여 이루어진다.In addition, the self-healing coating layer is sprayed with a coating solution obtained by mixing 20 to 30 parts by weight of the two-component self-restoring coating agent and 60 to 70 parts by weight of the diluent for the two-component self-restoring coating agent, based on 100 parts by weight of the two-component self-restoring coating agent. After heat curing at ~ 85 ℃ for 1 ~ 2 hours, first aging at 40 ~ 45 ℃ for 12 ~ 13 hours and second aging at room temperature (about 15 ~ 25 ℃) for 7 ~ 8 days, at 90 ~ 95 ℃ 1 It is made by pressurizing ~ 2 kg/cm 2 .
이액형 자가복원코팅제 주제는 FRiSH A((주)타이테크사), 이액형 자가복원코팅제 경화제는 FRiSH B((주)타이테크사), 이액형 자가복원코팅제용 희석제는 FRiSH Diluent-C((주)타이테크사) 등을 사용할 수 있지만, 반드시 여기에 한정되는 것은 아니고 이미 공지된 다양한 자가복원코팅용 조성의 적용이 가능하다.The two-component self-healing coating agent is FRiSH A (Tytech Co., Ltd.), the two-component self-restoring coating agent is FRiSH B (Tytech Co., Ltd.), and the diluent for the two-component self-restoring coating agent is FRiSH Diluent-C ((( Co., Ltd.) may be used, but it is not necessarily limited thereto, and it is possible to apply various compositions for self-healing coating already known.
한편, 베이스 코팅, 미디움 코팅, 탑 코팅, 프라이머 및 자가복원 코팅층을 이루는 물질의 조성비 및 코팅층 형성 조건이 상기 범위를 벗어날 경우 자가복원 성능이 제대로 구현되지 못할 우려가 있다.On the other hand, if the composition ratio of the materials constituting the base coating, medium coating, top coating, primer, and self-restoring coating layer and the coating layer forming conditions are out of the above range, there is a concern that the self-restoring performance may not be properly implemented.
이하, 본 발명을 아래 실시예에 의거하여 더욱 상세히 설명하지만, 본 발명이 실시예에 의해 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail based on the examples below, but the present invention is not limited by the examples.
1. 천연 가죽 소재의 제조1. Manufacture of natural leather materials
(실시예 1)(Example 1)
물 100 중량부에 대하여, 계면활성제(EA-120, dow사) 0.3 중량부를 혼합한 혼합 용액을 이용하여 천연가죽을 20분간 수세처리하였다(S100). 그리고, 물 100 중량부에 대하여, 크롬 1.3 중량부, 유제간 가지제(Lipoderm licker SO(BASF사)) 1.3 중량부, 알데히드 신탄(Novaltan PF(Zschimmer & Schwarz사)) 3.3 중량부 및 탄산수소나트륨(NaHCO3) 0.6 중량부를 혼합한 리탄닝 및 중화 용액과 천연가죽을 드럼에 투입한 후, 40℃에서 180분간 회전시켜 리탄닝 및 중화 처리한 후, 배수, 수세 및 건조 처리하였다(S200). 또한, 물 100 중량부에 대하여, 황산화 가지제(LIPSOL BSFR(S&S)(Schill&Seilacher사)) 4.5 중량부, 인산화 가지제(PNS-PB(피엔에스사)) 4.5 중량부, 항균성 마이크로캡슐(S-pine microcapsule, polychrom사)) 0.4 중량부 및 포름산 1.0 중량부를 혼합한 가지 용액 및 천연가죽을 드럼에 투입한 후, 45℃에서 160분간 회전시켜 가치 처리한 후, 배수, 수세 및 건조 처리하였다(S300). 그리고 물 100 중량부에 대하여, 제 1 아크릴 바인더(Primal SB-300, Bayer사) 51 중량부, 제 2 아크릴 바인더(HPB-980, Rohm & Hass사) 34 중량부, 제 1 우레탄 바인더(Tan ST, 벽산특수화학사) 17 중량부, 제 2 우레탄 바인더(Bottom CTR,lanxess사) 27 중량부, 왁스(Wax SP,벽산특수화학사) 27 중량부 및 레벨링제(Leveller S,벽산특수화학사) 17 중량부로 이루어지는 코팅액으로 코팅한 후 90℃에서 2kg/cm2으로 가압하여 베이스 코팅층을 형성시키고, 물 100 중량부에 대하여, 제 1 아크릴 바인더(Primal SB-300, Bayer사) 37 중량부, 제 2 아크릴 바인더(HPB-980, Rohm & Hass사) 18 중량부, 제 1 우레탄 바인더(Tan ST, 벽산특수화학사) 37 중량부, 제 3 우레탄 바인더(UD 51, lanxess사) 55 중량부, 왁스(Wax SP,벽산특수화학사) 29 중량부 및 레벨링제(Leveller S,벽산특수화학사) 18 중량부로 이루어지는 코팅액으로 코팅한 후 90℃에서 2kg/cm2으로 가압하여 미디움 코팅층을 형성시켰으며, 물 100 중량부에 대하여, 제 4 우레탄 바인더(Brillark W2, Fenice사) 133 중량부, 불소계 공중합체(Aquaderm X-shied L2, Lanxess사) 10 중량부 및 실리콘 에멀젼(Melio 06-F-76, Clariant사) 23 중량부로 이루어지는 코팅액으로 코팅한 후 90℃에서 2kg/cm2으로 가압하여 탑 코팅층을 형성시켰다. 그리고 물 100 중량부에 대하여, 카치온 바인더(LE-1175, stahl사) 19 중량부, 파라핀 왁스(WAX-PU, 벽산특수화학사) 14 중량부, 카치온 바인더 프라이머(C/T BINDER-D, stahl사) 35 중량부, 카제인(CA-3013 C, stahl사) 30 중량부 및 오일(GROUND-K, stahl사) 23 중량부로 이루어지는 프라이머를 1차 스프레이 하고 110℃에서 40kgf으로 1차 가압한 후, 다시 2차 스프레이하고 110℃에서 30kgf으로 2차 가압하여 프라이머를 형성시켰다. 그리고, 이액형 자가복원코팅제 주제(FRiSH A, (주)타이테크사) 100 중량부에 대하여, 이액형 자가복원코팅제 경화제(FRiSH B, (주)타이테크사) 20 중량부 및 이액형 자가복원코팅제용 희석제(FRiSH Diluent-C, (주)타이테크사) 60 중량부를 혼합한 코팅액을 스프레이 하고, 80℃에서 1시간 열경화 시킨 후, 40℃에서 12시간 1차 에이징 및 상온에서 7일 2차 에이징하고, 90℃에서 1kg/cm2으로 가압하여 자가복원 코팅층을 형성시켰다(S400).Natural leather was washed with water for 20 minutes using a mixed solution in which 0.3 parts by weight of a surfactant (EA-120, dow) was mixed with respect to 100 parts by weight of water (S100). And, based on 100 parts by weight of water, 1.3 parts by weight of chromium, 1.3 parts by weight of fatliquoring agent (Lipoderm licker SO (BASF)), 3.3 parts by weight of aldehyde syntan (Novaltan PF (Zschimmer & Schwarz)), and sodium bicarbonate (NaHCO 3 ) After mixing 0.6 parts by weight of a retanning and neutralizing solution and natural leather, the drum was put into a drum, rotated at 40° C. for 180 minutes, and then retanned and neutralized, followed by draining, washing, and drying (S200). In addition, based on 100 parts by weight of water, 4.5 parts by weight of sulfated fatliquoring (LIPSOL BSFR (S & S) (Schill & Seilacher)), 4.5 parts by weight of phosphorylated fatliquoring (PNS-PB (PNS)), antibacterial microcapsules (S -Pine microcapsule, polychrom)) 0.4 parts by weight and 1.0 parts by weight of formic acid were added to the eggplant solution and natural leather, and then value treated by rotating at 45 ° C for 160 minutes, followed by drainage, washing and drying ( S300). And based on 100 parts by weight of water, a first acrylic binder (Primal SB-300, Bayer Co.) 51 parts by weight, 2nd acrylic binder (HPB-980, Rohm & Hass) 34 parts by weight, 1st urethane binder (Tan ST, Byucksan Special Chemical Co.) 17 parts by weight, 27 parts by weight of a second urethane binder (Bottom CTR, Lanxess), 27 parts by weight of wax (Wax SP, Byucksan Special Chemicals), and 17 parts by weight of a leveling agent (Leveller S, Byucksan Special Chemicals) Coated with a coating solution After pressurization at 2 kg / cm 2 at 90 ° C. to form a base coating layer, with respect to 100 parts by weight of water, a first acrylic binder (Primal SB-300, Bayer Co.) 37 parts by weight, 2nd acrylic binder (HPB-980, Rohm & Hass) 18 parts by weight, 1st urethane binder (Tan ST, Byucksan Special Chemical Co.) 37 parts by weight, 55 parts by weight of a third urethane binder (UD 51, lanxess), 29 parts by weight of wax (Wax SP, Byucksan Special Chemicals) and 18 parts by weight of leveling agent (Leveller S, Byucksan Special Chemicals) Coated with a coating solution After that, a medium coating layer was formed by pressing at 2 kg/cm 2 at 90° C., and based on 100 parts by weight of water, 133 parts by weight of a fourth urethane binder (Brillark W2, Fenice), a fluorine-based copolymer (Aquaderm X-shied L2, After coating with a coating solution consisting of 10 parts by weight (Lanxess) and 23 parts by weight of silicone emulsion (Melio 06-F-76, Clariant), a top coating layer was formed by pressing at 90° C. at 2 kg/cm 2 . And, based on 100 parts by weight of water, 19 parts by weight of cationic binder (LE-1175, manufactured by Stahl), 14 parts by weight of paraffin wax (WAX-PU, manufactured by Byucksan Special Chemical Co.), and cation binder primer (C/T BINDER-D, manufactured by Stahl) ) 35 parts by weight, 30 parts by weight of casein (CA-3013 C, manufactured by stahl) and 23 parts by weight of oil (GROUND-K, manufactured by stahl) were first sprayed, and after the first pressurization at 110 ° C. at 40 kgf, again A second spray was performed and a second press was performed at 110° C. at 30 kgf to form a primer. In addition, based on 100 parts by weight of the two-component self-healing coating agent (FRiSH A, Tytech Co., Ltd.), 20 parts by weight of the two-component self-restoring coating agent curing agent (FRiSH B, Tytech Co., Ltd.) and two-component self-restoring coating agent After spraying a coating solution mixed with 60 parts by weight of a diluent for coating agents (FRiSH Diluent-C, Tytech Co., Ltd.), heat-curing at 80 ° C for 1 hour, primary aging at 40 ° C for 12 hours and 7 days at room temperature 2 Secondary aging, and pressurized at 1kg/cm 2 at 90° C. to form a self-healing coating layer (S400).
(실시예 2)(Example 2)
물 100 중량부에 대하여, 계면활성제(EA-120, dow사) 0.5 중량부를 혼합한 혼합 용액을 이용하여 천연가죽을 25분간 수세처리하였다(S100). 그리고, 물 100 중량부에 대하여, 크롬 2.0 중량부, 유제간 가지제(Lipoderm licker SO(BASF사)) 2.0 중량부, 알데히드 신탄(Novaltan PF(Zschimmer & Schwarz사)) 5 중량부 및 탄산수소나트륨(NaHCO3) 1.0 중량부를 혼합한 리탄닝 및 중화 용액과 천연가죽을 드럼에 투입한 후, 50℃에서 200분간 회전시켜 리탄닝 및 중화 처리한 후, 배수, 수세 및 건조 처리하였다(S200). 또한, 물 100 중량부에 대하여, 황산화 가지제(LIPSOL BSFR(S&S)(Schill&Seilacher사)) 5.5 중량부, 인산화 가지제(PNS-PB(피엔에스사)) 5.5 중량부, 항균성 마이크로캡슐(S-pine microcapsule, polychrom사)) 0.6 중량부 및 포름산 1.5 중량부를 혼합한 가지 용액 및 천연가죽을 드럼에 투입한 후, 55℃에서 200분간 회전시켜 가치 처리한 후, 배수, 수세 및 건조 처리하였다(S300). 그리고 물 100 중량부에 대하여, 제 1 아크릴 바인더(Primal SB-300, Bayer사) 61 중량부, 제 2 아크릴 바인더(HPB-980, Rohm & Hass사) 40 중량부, 제 1 우레탄 바인더(Tan ST, 벽산특수화학사) 25 중량부, 제 2 우레탄 바인더(Bottom CTR,lanxess사) 33 중량부, 왁스(Wax SP,벽산특수화학사) 33 중량부 및 레벨링제(Leveller S,벽산특수화학사) 20 중량부로 이루어지는 코팅액으로 코팅한 후 95℃에서 3kg/cm2으로 가압하여 베이스 코팅층을 형성시키고, 물 100 중량부에 대하여, 제 1 아크릴 바인더(Primal SB-300, Bayer사) 40 중량부, 제 2 아크릴 바인더(HPB-980, Rohm & Hass사) 22 중량부, 제 1 우레탄 바인더(Tan ST, 벽산특수화학사) 42 중량부, 제 3 우레탄 바인더(UD 51, lanxess사) 60 중량부, 왁스(Wax SP,벽산특수화학사) 33 중량부 및 레벨링제(Leveller S,벽산특수화학사) 22 중량부로 이루어지는 코팅액으로 코팅한 후 95℃에서 3kg/cm2으로 가압하여 미디움 코팅층을 형성시켰으며, 물 100 중량부에 대하여, 제 4 우레탄 바인더(Brillark W2, Fenice사) 140 중량부, 불소계 공중합체(Aquaderm X-shied L2, Lanxess사) 20 중량부 및 실리콘 에멀젼(Melio 06-F-76, Clariant사) 25 중량부로 이루어지는 코팅액으로 코팅한 후 95℃에서 3kg/cm2으로 가압하여 탑 코팅층을 형성시켰다. 그리고 물 100 중량부에 대하여, 카치온 바인더 LE-1175, stahl사) 25 중량부, 파라핀 왁스(WAX-PU, 벽산특수화학사) 20 중량부, 카치온 바인더 프라이머(C/T BINDER-D, stahl사) 40 중량부, 카제인(CA-3013 C, stahl사) 35 중량부 및 오일(GROUND-K, stahl사) 27 중량부로 이루어지는 프라이머를 1차 스프레이 하고 120℃에서 45kgf으로 1차 가압한 후, 다시 2차 스프레이하고 120℃에서 5kgf으로 2차 가압하여 프라이머를 형성시켰다. 그리고, 이액형 자가복원코팅제 주제(FRiSH A, (주)타이테크사) 100 중량부에 대하여, 이액형 자가복원코팅제 경화제(FRiSH B, (주)타이테크사) 30 중량부 및 이액형 자가복원코팅제용 희석제(FRiSH Diluent-C, (주)타이테크사) 70 중량부를 혼합한 코팅액을 스프레이 하고, 85℃에서 2시간 열경화 시킨 후, 45℃에서 13시간 1차 에이징 및 상온에서 8일 2차 에이징하고, 95℃에서 2kg/cm2으로 가압하여 자가복원 코팅층을 형성시켰다(S400).Natural leather was washed with water for 25 minutes using a mixed solution in which 0.5 parts by weight of a surfactant (EA-120, Dow) was mixed with respect to 100 parts by weight of water (S100). And, based on 100 parts by weight of water, 2.0 parts by weight of chromium, 2.0 parts by weight of fatliquoring agent (Lipoderm licker SO (BASF)), 5 parts by weight of aldehyde syntan (Novaltan PF (Zschimmer & Schwarz)) and sodium bicarbonate (NaHCO 3 ) After mixing 1.0 parts by weight of a retanning and neutralizing solution and natural leather, the drum was put into a drum, rotated at 50° C. for 200 minutes to be retanned and neutralized, and drained, washed, and dried (S200). In addition, based on 100 parts by weight of water, 5.5 parts by weight of sulfated fatliquoring agent (LIPSOL BSFR (S&S) (Schill & Seilacher)), 5.5 parts by weight of phosphorylated fatliquoring agent (PNS-PB (PNS)), antibacterial microcapsules (S -Pine microcapsule, polychrom)) 0.6 parts by weight and 1.5 parts by weight of formic acid were added to the eggplant solution and natural leather, rotated at 55 ° C for 200 minutes to value treatment, and then drained, washed with water and dried ( S300). And based on 100 parts by weight of water, a first acrylic binder (Primal SB-300, Bayer Co.) 61 parts by weight, 2nd acrylic binder (HPB-980, Rohm & Hass) 40 parts by weight, 1st urethane binder (Tan ST, Byucksan Special Chemical Co.) Coated with a coating solution consisting of 25 parts by weight, 33 parts by weight of a second urethane binder (Bottom CTR, Lanxess), 33 parts by weight of wax (Wax SP, Byucksan Special Chemical Co.) and 20 parts by weight of a leveling agent (Leveller S, Byucksan Special Chemical Co.) After pressurization at 95 ° C. at 3 kg / cm 2 to form a base coating layer, and based on 100 parts by weight of water, a first acrylic binder (Primal SB-300, Bayer Co.) 40 parts by weight, 2nd acrylic binder (HPB-980, Rohm & Hass) 22 parts by weight, 1st urethane binder (Tan ST, Byucksan Special Chemical Co.) Coated with a coating solution consisting of 42 parts by weight, 60 parts by weight of a third urethane binder (UD 51, Lanxess), 33 parts by weight of wax (Wax SP, Byucksan Special Chemicals) and 22 parts by weight of a leveling agent (Leveller S, Byucksan Special Chemicals) After that, a medium coating layer was formed by pressing at 3 kg/cm 2 at 95° C., and based on 100 parts by weight of water, 140 parts by weight of a fourth urethane binder (Brillark W2, Fenice), a fluorine-based copolymer (Aquaderm X-shied L2, After coating with a coating solution consisting of 20 parts by weight of Lanxess Co. and 25 parts by weight of silicone emulsion (Melio 06-F-76, Clariant Co.), a top coating layer was formed by pressing at 95° C. at 3 kg/cm 2 . And based on 100 parts by weight of water, cation binder LE-1175, stahl company) 25 parts by weight, paraffin wax (WAX-PU, Byucksan Special Chemical Co.) 20 parts by weight, cation binder primer (C / T BINDER-D, stahl company) A primer consisting of 40 parts by weight, 35 parts by weight of casein (CA-3013 C, manufactured by Stahl) and 27 parts by weight of oil (GROUND-K, manufactured by Stahl) was first sprayed, and after the first pressurization at 45 kgf at 120 ° C, the second The primer was formed by secondary spraying and secondary pressing at 120 ° C. with 5 kgf. In addition, based on 100 parts by weight of the two-component self-restoring coating agent (FRiSH A, Tytech Co., Ltd.), 30 parts by weight of the two-component self-restoring coating agent curing agent (FRiSH B, Tytech Co., Ltd.) and two-component self-restoration coating agent After spraying a coating solution mixed with 70 parts by weight of a diluent for coating agents (FRiSH Diluent-C, Tytech Co., Ltd.), heat-curing at 85 ° C for 2 hours, first aging at 45 ° C for 13 hours and 8 days at room temperature 2 Secondary aging and pressurization at 95° C. at 2 kg/cm 2 to form a self-healing coating layer (S400).
(비교예 1)(Comparative Example 1)
실시예 1과 동일하게 제조하되, 알데히드 신탄을 사용하지 않고, 티타늄 신탄(Titanium syntan, TiO2)을 사용하였고, 황산화 가지제 및 인산화 가지제를 사용하지 않고, 아황산화가지제(REMSOL B30, HODGSON사)를 사용하였다It was prepared in the same manner as in Example 1, except that aldehyde syntan was not used, titanium syntan (TiO 2 ) was used, and a sulfurized fatliquoring agent (REMSOL B30, HODGSON) was used without a sulfated fatliquoring agent and a phosphorylated fatliquoring agent. g) was used
(비교예 2)(Comparative Example 2)
실시예 2와 동일하게 제조하되, 자가복원 코팅층을 형성시키지 않았다.It was prepared in the same manner as in Example 2, but the self-healing coating layer was not formed.
2. 천연 가죽 소재의 평가2. Evaluation of natural leather materials
상기 실시예 및 비교예에 대한 내스크래치성 및 내마모성 등의 특성을 시험하였으며, 시험항목 및 결과는 아래 [표 1]에 나타내었고, 시험방법은 아래 [표 2]에 나타내었다.Properties such as scratch resistance and abrasion resistance were tested for the above examples and comparative examples, test items and results are shown in [Table 1] below, and test methods are shown in [Table 2] below.
(Grade)Scratch resistance test
(Grade)
(mg·loss)Wear resistance (amount of wear reduction)
(mg·loss)
(급)Wear resistance (discoloration)
(class)
(급)Perspiration fastness
(class)
(급)stain resistance
(class)
(MPa)The tensile strength
(MPa)
(%)elongation rate
(%)
(급)Friction fastness
(class)
Wet: 4급Dry: Level 5
Wet: Level 4
Wet: 4급Dry: Level 5
Wet: Level 4
Wet: 3급Dry: Level 4
Wet: Level 3
Wet: 3급Dry: Level 4
Wet: Level 3
(급)Color fastness after accelerated aging
(class)
(n≥5개)number of samples to be measured
(n≥5)
비교예에
따른 원단Examples and
in comparative example
Fabric along
(마모감소량)wear resistance
(amount of wear reduction)
(변퇴색)wear resistance
(discoloration)
염색 견뢰도 시험after accelerated aging
Color fastness test
상기 [표 1]에서와 같이, 본 발명의 실시예에 따른 천연 가죽 소재는 비교예에 비하여 자가복원 성능을 통한 우수한 내스크래치성 및 내마모성 등을 구현함을 알 수 있다.As shown in [Table 1], it can be seen that the natural leather material according to the embodiment of the present invention implements excellent scratch resistance and abrasion resistance through self-healing performance compared to the comparative example.
상술한 바와 같은, 본 발명의 바람직한 실시예에 따른 자가복원성 및 내스크래치성이 우수한 천연가죽 소재의 제조방법 및 이 방법에 의해 제조된 천연가죽 소재를 상기한 설명 및 도면에 따라 설명하였지만 이는 예를 들어 설명한 것에 불과하며 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 다양한 변화 및 변경이 가능하다는 것을 이 분야의 통상적인 기술자들은 잘 이해할 수 있을 것이다.As described above, the method for manufacturing a natural leather material excellent in self-healing property and scratch resistance according to a preferred embodiment of the present invention and the natural leather material manufactured by this method have been described according to the above description and drawings, but this is an example Those skilled in the art will be able to understand that various changes and modifications are possible without departing from the scope of the technical idea of the present invention.
Claims (9)
천연가죽을 수세하는 수세 단계(S100);
상기 수세 단계를 거친 천연가죽을 리탄닝 및 중화 용액을 이용하여 리탄닝 및 중화처리하는 리탄닝 및 중화 단계(S200);
상기 리탄닝 및 중화 단계를 거친 천연가죽을 가지 용액을 이용하여 가지 처리하는 가지 단계(S300); 및
상기 가지 단계를 거친 천연가죽의 표면에 자가복원 코팅층을 형성시키는 코팅단계(S400);를 포함하되,
상기 가지 단계(S300)는 물 100 중량부에 대하여, 황산화 가지제 4.5 ~ 5.5 중량부, 인산화 가지제 4.5 ~ 5.5 중량부, 항균성 마이크로캡슐 0.4 ~ 0.6 중량부 및 포름산 1.0 ~ 1.5 중량부를 혼합한 가지 용액 및 천연가죽을 드럼에 투입한 후, 45 ~ 55℃에서 160 ~ 200분간 회전시켜 가지 처리하는 것을 특징으로 하는, 자가복원성 및 내스크래치성이 우수한 천연가죽 소재의 제조방법.
In the manufacturing method of natural leather material,
A water washing step of washing natural leather with water (S100);
A retanning and neutralizing step (S200) of retanning and neutralizing the natural leather that has gone through the washing step using a retanning and neutralizing solution;
Eggplant processing (S300) of processing the natural leather that has undergone the retanning and neutralization steps using an eggplant solution; and
A coating step (S400) of forming a self-healing coating layer on the surface of the natural leather that has undergone the branching step;
In the eggplant step (S300), 4.5 to 5.5 parts by weight of a sulfated fatliquoring agent, 4.5 to 5.5 parts by weight of a phosphorylated fatliquoring agent, 0.4 to 0.6 parts by weight of antibacterial microcapsules, and 1.0 to 1.5 parts by weight of formic acid are mixed with respect to 100 parts by weight of water. A method for producing a natural leather material with excellent self-restoration and scratch resistance, characterized in that the eggplant solution and natural leather are put into a drum and then rotated at 45 to 55 ° C for 160 to 200 minutes for eggplant treatment.
상기 수세 단계(S100)는,
물 100 중량부에 대하여, 계면활성제 0.3 ~ 0.5 중량부를 혼합한 혼합 용액을 이용하여 20 ~ 25분간 수세처리하는 것을 특징으로 하는, 자가복원성 및 내스크래치성이 우수한 천연가죽 소재의 제조방법.
According to claim 1,
In the water washing step (S100),
A method for producing a natural leather material with excellent self-restoration and scratch resistance, characterized by washing with water for 20 to 25 minutes using a mixed solution in which 0.3 to 0.5 parts by weight of a surfactant is mixed with respect to 100 parts by weight of water.
상기 리탄닝 및 중화 단계(S200)는,
물 100 중량부에 대하여, 크롬 1.3 ~ 2.0 중량부, 유제간 가지제 1.3 ~ 2.0 중량부, 알데히드 신탄 3.3 ~ 5 중량부 및 탄산수소나트륨 0.6 ~ 1.0 중량부를 혼합한 리탄닝 및 중화 용액과 천연가죽을 드럼에 투입한 후, 40 ~ 50℃에서 180 ~ 200분간 회전시켜 리탄닝 및 중화 처리하는 것을 특징으로 하는, 자가복원성 및 내스크래치성이 우수한 천연가죽 소재의 제조방법.
According to claim 1,
In the retanning and neutralization step (S200),
Retanning and neutralizing solution mixed with 1.3 to 2.0 parts by weight of chromium, 1.3 to 2.0 parts by weight of fatliquoring agent, 3.3 to 5 parts by weight of aldehyde syntan, and 0.6 to 1.0 parts by weight of sodium bicarbonate and natural leather with respect to 100 parts by weight of water A method for producing a natural leather material with excellent self-healing property and scratch resistance, characterized in that after putting it into a drum, it is rotated at 40 ~ 50 ℃ for 180 ~ 200 minutes for retanning and neutralization treatment.
상기 코팅단계(S400)는,
스프레이(Spray) 방식으로 베이스 코팅(Base coating), 미디움 코팅(Medium coating) 및 탑 코팅(Top coating)을 수행한 후, 프라이머(Primer)를 매개로 자가복원 코팅층을 형성시키는 것을 특징으로 하는, 자가복원성 및 내스크래치성이 우수한 천연가죽 소재의 제조방법.
According to claim 1,
The coating step (S400),
After performing base coating, medium coating, and top coating in a spray method, a self-healing coating layer is formed through a primer, Method for manufacturing natural leather material with excellent recovery and scratch resistance.
상기 베이스 코팅은 물 100 중량부에 대하여, 제 1 아크릴 바인더 51 ~ 61 중량부, 제 2 아크릴 바인더 34 ~ 40 중량부, 제 1 우레탄 바인더 17 ~ 25 중량부, 제 2 우레탄 바인더 27 ~ 33 중량부, 왁스 27 ~ 33 중량부 및 레벨링제 17 ~ 20 중량부로 이루어지는 코팅액으로 코팅한 후 90 ~ 95℃에서 2 ~ 3kg/cm2으로 가압하고,
상기 미디움 코팅은 물 100 중량부에 대하여, 제 1 아크릴 바인더 37 ~ 40 중량부, 제 2 아크릴 바인더 18 ~ 22 중량부, 제 1 우레탄 바인더 37 ~ 42 중량부, 제 3 우레탄 바인더 55 ~ 60 중량부, 왁스 29 ~ 33 중량부 및 레벨링제 18 ~ 22 중량부로 이루어지는 코팅액으로 코팅한 후 90 ~ 95℃에서 2 ~ 3kg/cm2으로 가압하며,
상기 탑 코팅은 물 100 중량부에 대하여, 제 4 우레탄 바인더 133 ~ 140 중량부, 불소계 공중합체 10 ~ 20 중량부 및 실리콘 에멀젼 23 ~ 25 중량부로 이루어지는 코팅액으로 코팅한 후 90 ~ 95℃에서 2 ~ 3kg/cm2으로 가압하여 이루어지는 것을 특징으로 하는, 자가복원성 및 내스크래치성이 우수한 천연가죽 소재의 제조방법.
According to claim 5,
The base coating is based on 100 parts by weight of water, a first acrylic binder 51 to 61 parts by weight, 34 to 40 parts by weight of the second acrylic binder, the first urethane binder 17 to 25 parts by weight, 27 to 33 parts by weight of the second urethane binder, 27 to 33 parts by weight of wax, and 17 to 20 parts by weight of a leveling agent After coating with a coating solution, pressurized at 2 to 3 kg / cm 2 at 90 to 95 ° C. ,
The medium coating is based on 100 parts by weight of water, 37 to 40 parts by weight of the first acrylic binder, 18 to 22 parts by weight of the second acrylic binder, the first urethane binder After coating with a coating solution consisting of 37 to 42 parts by weight, 55 to 60 parts by weight of a third urethane binder, 29 to 33 parts by weight of wax, and 18 to 22 parts by weight of a leveling agent, pressurized at 2 to 3 kg/cm 2 at 90 to 95 ° C. ,
The top coating is based on 100 parts by weight of water, 133 to 140 parts by weight of the fourth urethane binder, 10 to 20 parts by weight of a fluorine-based copolymer, and 23 to 25 parts by weight of a silicone emulsion. A method for producing a natural leather material having excellent self-healing properties and scratch resistance, characterized in that it is made by pressing at 3 kg/cm 2 .
상기 프라이머는
물 100 중량부에 대하여, 카치온 바인더 19 ~ 25 중량부, 파라핀 왁스 14 ~20 중량부, 카치온 바인더 프라이머 35 ~ 40 중량부, 카제인 30 ~ 35 중량부 및 오일 23 ~ 27 중량부로 이루어지는 프라이머를 1차 스프레이 하고 110 ~ 120℃에서 40 ~ 45kgf으로 1차 가압한 후, 다시 2차 스프레이하고 110 ~ 120℃에서 30 ~ 35kgf으로 2차 가압하여 형성시키는 것을 특징으로 하는, 자가복원성 및 내스크래치성이 우수한 천연가죽 소재의 제조방법.
According to claim 5,
The primer is
Based on 100 parts by weight of water, cation binder 19 to 25 parts by weight, 14 to 20 parts by weight of paraffin wax, 35 to 40 parts by weight of cationic binder primer, 30 to 35 parts by weight of casein, and 23 to 27 parts by weight of oil are first sprayed, and then 40 to 40 parts by weight at 110 to 120 ℃ A method for producing a natural leather material with excellent self-restoration and scratch resistance, characterized in that it is formed by first pressing with 45 kgf, then spraying again, and forming by second pressing with 30 to 35 kgf at 110 to 120 ° C.
자가복원 코팅층은
이액형 자가복원코팅제 주제 100 중량부에 대하여, 이액형 자가복원코팅제 경화제 20 ~ 30 중량부 및 이액형 자가복원코팅제용 희석제 60 ~ 70 중량부를 혼합한 코팅액을 스프레이 하고, 80 ~ 85℃에서 1 ~ 2시간 열경화 시킨 후, 40 ~ 45℃에서 12 ~ 13시간 1차 에이징 및 상온에서 7 ~ 8일 2차 에이징하고, 90 ~ 95℃에서 1 ~ 2kg/cm2으로 가압하여 이루어지는 것을 특징으로 하는, 자가복원성 및 내스크래치성이 우수한 천연가죽 소재의 제조방법.
According to claim 5,
The self-healing coating layer
Based on 100 parts by weight of the two-component self-healing coating agent, spray a coating solution mixed with 20 to 30 parts by weight of the two-component self-healing coating hardener and 60 to 70 parts by weight of the diluent for the two-component self-healing coating agent, and at 80 to 85 ° C. After heat curing for 2 hours, first aging at 40 ~ 45 ℃ for 12 ~ 13 hours and second aging at room temperature for 7 ~ 8 days, and pressurized at 90 ~ 95 ℃ at 1 ~ 2kg / cm 2 Characterized in that , Method for manufacturing natural leather material with excellent self-healing and scratch resistance.
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