KR100908107B1 - Manufacturing method of leather having nano-silver particle layer, and leather produced thereby - Google Patents
Manufacturing method of leather having nano-silver particle layer, and leather produced thereby Download PDFInfo
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- KR100908107B1 KR100908107B1 KR1020080135888A KR20080135888A KR100908107B1 KR 100908107 B1 KR100908107 B1 KR 100908107B1 KR 1020080135888 A KR1020080135888 A KR 1020080135888A KR 20080135888 A KR20080135888 A KR 20080135888A KR 100908107 B1 KR100908107 B1 KR 100908107B1
- Authority
- KR
- South Korea
- Prior art keywords
- polyurethane resin
- layer
- leather
- weight
- resin layer
- Prior art date
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- 239000010985 leather Substances 0.000 title claims abstract description 81
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000002245 particle Substances 0.000 title abstract 5
- 239000010410 layer Substances 0.000 claims abstract description 96
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 62
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000000853 adhesive Substances 0.000 claims abstract description 15
- 239000012790 adhesive layer Substances 0.000 claims abstract description 15
- 230000001070 adhesive effect Effects 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 14
- 239000011342 resin composition Substances 0.000 claims abstract description 13
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 230000032683 aging Effects 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims abstract description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 51
- 239000004744 fabric Substances 0.000 claims description 50
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 33
- 229910052709 silver Inorganic materials 0.000 claims description 30
- 239000004332 silver Substances 0.000 claims description 30
- 239000002105 nanoparticle Substances 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 22
- 229920002635 polyurethane Polymers 0.000 claims description 22
- 239000004814 polyurethane Substances 0.000 claims description 22
- 239000006260 foam Substances 0.000 claims description 16
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 15
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims description 15
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 12
- 239000000049 pigment Substances 0.000 claims description 10
- 239000000839 emulsion Substances 0.000 claims description 9
- 239000003431 cross linking reagent Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 229920001296 polysiloxane Polymers 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 3
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims 2
- 239000002904 solvent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 abstract description 7
- 239000011248 coating agent Substances 0.000 abstract description 6
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract 2
- 230000003115 biocidal effect Effects 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 12
- 238000012360 testing method Methods 0.000 description 8
- 239000012855 volatile organic compound Substances 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 229920006264 polyurethane film Polymers 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 230000000844 anti-bacterial effect Effects 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 4
- 238000013329 compounding Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229940045870 sodium palmitate Drugs 0.000 description 4
- GGXKEBACDBNFAF-UHFFFAOYSA-M sodium;hexadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCC([O-])=O GGXKEBACDBNFAF-UHFFFAOYSA-M 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 230000000845 anti-microbial effect Effects 0.000 description 3
- 229920006267 polyester film Polymers 0.000 description 3
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 2
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 230000003385 bacteriostatic effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000002103 nanocoating Substances 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000011527 polyurethane coating Substances 0.000 description 2
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 2
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 2
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000010020 roller printing Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- -1 N-aminoethyl-aminoethyl Chemical group 0.000 description 1
- 229920001665 Poly-4-vinylphenol Polymers 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000013504 Triton X-100 Substances 0.000 description 1
- 229920004890 Triton X-100 Polymers 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000005026 oriented polypropylene Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000003232 water-soluble binding agent Substances 0.000 description 1
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
- C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
- C14C9/04—Fixing tanning agents in the leather
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/14—Plasma, i.e. ionised gases
-
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
- D06M11/42—Oxides or hydroxides of copper, silver or gold
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Epidemiology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
Description
본 발명은 은나노 입자층이 코팅된 가죽원단의 제조방법 및 그에 의하여 제조된 가죽원단에 관한 것이다. 더욱 상세하게는 가죽 표면의 질감을 매끄럽게 하고 표면을 보호할 수 있도록 가죽원단의 표면에 폴리우레탄 수지층을 형성하고, 상기 폴리우레탄 수지층 표면에 세균과 바이러스의 항균 및 살균뿐만 아니라 포름알데히드 제거 및 VOCs(volatile organic compounds) 제거 특성이 있는 은나노 입자층을 형성하는 방법 및 그에 의하여 제조된 가죽원단에 관한 것이다.The present invention relates to a method for producing a leather fabric coated with a silver nanoparticle layer and a leather fabric produced thereby. More specifically, to form a polyurethane resin layer on the surface of the leather fabric to smooth the texture of the leather surface and protect the surface, and to remove formaldehyde as well as antibacterial and sterilization of bacteria and viruses on the surface of the polyurethane resin layer The present invention relates to a method of forming a layer of silver nanoparticles having a characteristic of removing volatile organic compounds (VOCs) and a leather fabric produced thereby.
일반적으로 가죽원단은 의복, 신발 또는 가방 등에 광범위하게 사용되고 있다. 그런데 가죽은 물에 약하기 때문에 실질적으로 제품에 적용하는데 어려움이 있다. 예컨대, 가죽제품이 비를 맞는 경우, 건조된 상태에서도 물이 흐른 자국 등이 얼룩으로 남게 되어 제품의 가치가 손상되는 문제가 발생한다. 또한, 기타 물질에 의한 오염도 쉽게 발생하며, 가죽결의 표면이 타 물체와 접촉될 때 표면결의 쏠림에 의한 손상이 발생되어 원래의 질감을 유지하지 못하는 단점도 있다. 따라서, 천연가죽의 질감을 유지하면서도 색상의 유지와 방수성, 통기성, 촉감 및 재질의 탄력도를 양호하게 하고, 가죽의 내구성을 향상시키기 위한 노력이 계속되고 있다.In general, leather fabrics are widely used in clothing, shoes or bags. However, since leather is weak in water, it is difficult to practically apply to products. For example, when a leather product is rained, a mark that flows water is left as a stain even in a dried state, which causes a problem that the value of the product is damaged. In addition, contamination by other materials is also easily generated, and when the surface of the leather texture comes into contact with other objects, damage caused by the surface grains may occur, and thus the original texture may not be maintained. Therefore, while maintaining the texture of natural leather, efforts to improve the maintenance of color and waterproofness, breathability, feel and elasticity of the material, and improve the durability of the leather continues.
현재 일반적으로 유통되고 있는 가죽원단 및 가죽제품은 가죽에 직접 약품을 처리하여 롤러 인쇄나 패드질을 하거나 인쇄 또는 기타 나염 방법으로 작업을 한 것이다. 이때 약품으로는 수용성 바인더나 에나멜 등이 주로 사용되고 있다. 그런데, 이와 같이 약품을 직접 가죽에 처리하는 경우, 가죽에 약품이 스며들어서 가죽의 형태가 변형되거나 시간이 지남에 따라 가죽이 경화되고, 크랙현상이 나타나며, 방수가 되지 않아 눈이나 비가 가죽에 스며들어 가죽의 중량이 무거워지는 문제가 발생한다. 또한, 보관시 곰팡이나 스퓨(spew)가 발생하는 문제도 피하기 어렵다.Leather fabrics and leather products that are currently in circulation in general are chemical treatments directly on leather, which are roller-printed, padded, printed or otherwise printed. At this time, a water-soluble binder or enamel is mainly used as a chemical. However, when the chemicals are directly processed into the leather in this way, the chemicals are infiltrated into the leather and the shape of the leather is deformed or the leather hardens as time passes, cracks appear, and it is not waterproof, so the snow or rain penetrates the leather. For example, the weight of the leather becomes heavy. In addition, it is difficult to avoid the problem of mold or spew during storage.
대한민국 등록특허공보 제10-348096호에는 가죽원단에 폴리우레탄막을 형성하는 방법이 개시되어 있으며, 그 방법은 구체적으로 폴리에스테르 필름상에 이형제를 도포하고 75℃에서 건조하여 이형제층을 형성하는 단계; 상기 이형제층 상에 롤러를 사용하여 폴리우레탄 수지와 메틸에틸케톤의 혼합물을 도포한 다음 100℃에서 20 내지 30초 동안 속건하여 폴리우레탄 막층을 형성하는 단계; 상기 폴리우레탄 막층 상에 폴리우레탄 2액형 접착제를 도포하여 20 내지 30℃에서 2분 동안 건조하여 접착제층을 형성하는 단계; 상기 접착제층 상에 가죽원단을 코팅하는 단계; 및 상기 폴리에스테르 필름을 탈리시키는 단계를 포함한다. 그러나, 이 방법은 폴리우레탄 막층을 용이하게 가죽원단 상으로 이행시키기 위해 폴리에스테르 필름 상에 이형제층을 형성시키므로, 필름층, 이형제층, 폴리우레탄 막층, 접착제층의 4 층의 적층구조를 갖는다. 따라서 4층의 적층구조를 완성하기 위해 많은 시간과 공정이 소요되어 생산성이 저하될 뿐만 아니라, 상기 이형제는 폴리우레탄 막층이 가죽원단으로 이행된 후에는 재생의 여지 없이 폐기되기 때문에 경제적인 면과 환경보호의 측면에서 모두 바람직하지 못한 단점이 있다.Republic of Korea Patent Publication No. 10-348096 discloses a method for forming a polyurethane film on the leather fabric, the method specifically comprises the step of applying a release agent on a polyester film and dried at 75 ℃ to form a release agent layer; Applying a mixture of a polyurethane resin and methyl ethyl ketone using a roller on the release agent layer and then rapidly drying at 100 ° C. for 20 to 30 seconds to form a polyurethane film layer; Applying a polyurethane two-component adhesive on the polyurethane film layer and drying at 20 to 30 ° C. for 2 minutes to form an adhesive layer; Coating a leather fabric on the adhesive layer; And detaching the polyester film. However, this method forms a release agent layer on the polyester film in order to easily transfer the polyurethane film layer onto the leather fabric, and thus has a laminated structure of four layers: a film layer, a release agent layer, a polyurethane film layer, and an adhesive layer. Therefore, it takes a lot of time and process to complete the four-layer laminated structure, not only decreases the productivity, but also because the release agent is discarded without any regeneration after the polyurethane film layer is transferred to the leather fabric, economical and environmental All are disadvantageous in terms of protection.
대한민국 공개특허공보 제10-2004-0033852호에는 (1) 폴리우레탄을 85 내지 110목/㎠의 망목이 형성된 롤러를 통하여 기재필름 상에 도포하여 우레탄막을 형성시키는 우레탄막 형성단계; (2) 상기 우레탄막 형성단계에서 수득된 폴리우레탄막 상에 접착제를 도포하여 접착제층이 형성된 우레탄필름을 형성단계; 및 (3) 상기 우레탄필름 형성 단계에서 수득된 우레탄필름 상의 접착제층이 가죽원단의 일측 표면과 접촉하도록 하여 우레탄막이 가죽원단의 표면 상으로 이행되도록 하는 우레탄막 이행단계를 포함하는 폴리우레탄이 코팅된 가죽원단의 제조방법을 개시하고 있다. 상기 발명은 대한민국 등록특허공보 제10-348096호 발명에서 지적된 이형제층 형성의 문제를 해결하는 구성을 기재하고 있다. 그러나, 이러한 방법으로 폴리우레탄 코팅을 실시할 경우, 코팅막에 포깅(fogging)이나 핀홀(pine-hole) 현상이 발생하는 것을 피하기 어려우며, 낮은 레벨링성도 문제도 발생될 수 있다. Republic of Korea Patent Publication No. 10-2004-0033852 (1) urethane film forming step of forming a urethane film by applying a polyurethane on the base film through a roller formed with a mesh of 85 to 110 neck / cm 2; (2) forming an urethane film having an adhesive layer formed by applying an adhesive on the polyurethane film obtained in the urethane film forming step; And (3) a polyurethane coating comprising a urethane film transition step of allowing the adhesive layer on the urethane film obtained in the urethane film forming step to come into contact with one surface of the leather fabric so that the urethane film is transferred onto the surface of the leather fabric. Disclosed is a method for producing leather fabrics. The invention describes a configuration to solve the problem of the release agent layer formation pointed out in the Republic of Korea Patent Publication No. 10-348096. However, when the polyurethane coating is performed in this manner, it is difficult to avoid the occurrence of fogging or pin-hole phenomenon in the coating film, and low leveling properties may also occur.
또한, 상기 발명들은 가죽제품에서 문제가 되는 곰팡이, 세균 등에 대한 항균 및 살균 방법이나, 가죽 제품에서 발생할 수 있는 유해물질인 포름알데히드나 VOCs(volatile organic compounds) 등을 억제하는 방법에 대하여는 전혀 언급하고 있지 않은 점도 단점으로 지적된다. In addition, the above inventions mention at all the antimicrobial and sterilization method for mold, bacteria, etc., which are a problem in leather products, and the method of suppressing harmful substances that may occur in leather products, such as formaldehyde or VOCs (volatile organic compounds). Not being noted is also a disadvantage.
본 발명은 종래 기술의 상기와 같은 문제를 해결하기 위한 것으로서, 가죽원단 코팅시 폴리우레탄 수지층에 포깅(fogging)이나 핀홀(pine-hole) 현상이 발생시키지 않으며, 상기 폴리우레탄 수지층이 우수한 레벨링성을 나타내도록 하며, 가죽원단에 곰팡이나 세균의 항균 및 살균 기능 및 가죽 제품에서 발생할 수 있는 유해물질인 포름알데히드나 VOCs(volatile organic compounds)를 억제하는 기능이 부여되는, 은나노 입자층이 코팅된 가죽원단의 제조방법 및 그 방법에 의하여 제조되는 가죽원단을 제공하는 것을 목적으로 한다. The present invention is to solve the above problems of the prior art, does not cause fogging or pin-hole phenomenon in the polyurethane resin layer during leather fabric coating, the polyurethane resin layer is excellent leveling Silver nano-particle layer coated leather, which has the characteristics of preventing the formation of antibacterial and bactericidal functions of mold or bacteria and inhibiting formaldehyde or VOCs (volatile organic compounds), which may occur in leather products. It is an object of the present invention to provide a method for producing a fabric and a leather fabric produced by the method.
본 발명은, 폴리우레탄 수지 조성물을 전사 무늬를 갖는 배합지에 도포하는 단계; 상기 배합지에 도포된 폴리우레탄 수지 조성물을 100~110℃의 온도에서 건조하여 폴리우레탄 수지층을 형성하는 단계; 상기 폴리우레탄 수지층에 접착제를 도포하고 건조하여 접착제층을 형성하는 단계; 상기 접착제층과 이형필름 상에 안착된 가죽을 마주보게 하여 합포시키고 권취하는 단계; 상기 권취된 롤을 130~150℃에서 12~36 시간 동안 숙성시키는 단계; 상기 권취된 롤을 풀면서 상기 배합지와 이형필름을 제거하는 단계; 및 상기 배합지가 제거된 폴리우레탄 수지층 표면에 1 nm ~ 5 nm 은나노 입자가 분산된 용액을 분사하여 은나노 입자층을 형성하는 단계를 포함하며, 상기에서 폴리우레탄 조성물은, 조성물 총 중량에 대하여 안료 13~18 중량%, 폴리우레탄 에멀젼 45~55 중량%, 메틸에틸케톤(MEK) 8~15 중량%, 디메틸포름아마이드(DMF) 3~7 중량%, 실리콘 3~7 중량%, 가교제 3~7 중량%, 우레탄 본드 3~7 중량% 및 우레탄 발포 폼(FOAM) 수지 3~7 중량%를 포함하는 것을 특징으로 하는 은나노 입자층이 코팅된 가죽원단의 제조방법을 제공한다.The present invention, the step of applying a polyurethane resin composition to a blended paper having a transfer pattern; Drying the polyurethane resin composition applied to the blended paper at a temperature of 100 to 110 ° C. to form a polyurethane resin layer; Applying an adhesive to the polyurethane resin layer and drying to form an adhesive layer; Enveloping and winding the leather facing the adhesive layer and the release film; Aging the rolled roll at 130 to 150 ° C. for 12 to 36 hours; Removing the blending paper and the release film while unwinding the wound roll; And forming a silver nanoparticle layer by spraying a solution in which 1 nm to 5 nm silver nanoparticles are dispersed on the surface of the polyurethane resin layer from which the blending paper is removed, wherein the polyurethane composition comprises pigment 13 based on the total weight of the composition. ~ 18% by weight, polyurethane emulsion 45-55% by weight, methyl ethyl ketone (MEK) 8-15% by weight, dimethylformamide (DMF) 3-7% by weight, silicone 3-7% by weight, crosslinking agent 3-7% It provides a method for producing a leather fabric coated silver nanoparticles layer, characterized in that it comprises%, 3 to 7% by weight of the urethane bond and 3 to 7% by weight of the urethane foam (FOAM) resin.
본 발명은 또한, 상기의 방법으로 제조되는 상층으로서 은나노 입자층 및 중층으로서 폴리우레탄 수지층이 형성된 가죽원단을 제공한다.The present invention also provides a leather fabric in which a silver nanoparticle layer and a polyurethane resin layer are formed as an upper layer produced by the above method.
본 발명의 은나노 입자층이 코팅된 가죽원단의 제조방법에 의하면, 가죽원단의 외부에 형성되는 은나노 입자 층을 갖는 폴리우레탄 수지층에 포깅(fogging)이나 핀홀(pine-hole) 현상이 발생하지 않으며, 그러한 폴리우레탄 수지층이 우수한 레벨링성을 갖기 때문에, 매우 고급스런 가죽원단을 제조하는 것이 가능하다. 또한, 가죽원단, 폴리우레탄 수지층 및 은나노 입자층이 견고하게 결합되어 우수한 내구성을 갖는 가죽원단을 제조하는 것이 가능하다. 또한, 은나노 입자층에 의하여 가죽원단에 곰팡이나 세균의 항균 및 살균 기능 및 가죽 제품에서 발생할 수 있는 유해물질인 포름알데히드나 VOCs(volatile organic compounds)를 억제하는 기능도 부여되기 때문에 매우 위생적이고 인체에 무해한 가죽원단을 제공할 수 있다. According to the manufacturing method of the leather fabric coated with the silver nanoparticle layer of the present invention, no fogging or pin-hole phenomenon occurs in the polyurethane resin layer having the silver nanoparticle layer formed on the outside of the leather fabric. Since such polyurethane resin layer has excellent leveling property, it is possible to produce a very high quality leather fabric. In addition, the leather fabric, the polyurethane resin layer and the silver nanoparticle layer is firmly bonded to produce a leather fabric having excellent durability. In addition, the silver nano particle layer is also very hygienic and harmless to human body because it gives the leather fabric the antibacterial and bactericidal function of mold and bacteria, and the function of inhibiting formaldehyde or VOCs (volatile organic compounds), which can occur in leather products. Leather fabric can be provided.
본 발명은, 폴리우레탄 수지 조성물을 전사 무늬를 갖는 배합지에 도포하는 단계; 상기 배합지에 도포된 폴리우레탄 수지 조성물을 100~110℃의 온도에서 건조하여 폴리우레탄 수지층을 형성하는 단계; 상기 폴리우레탄 수지층에 접착제를 도포하고 건조하여 접착제층을 형성하는 단계; 상기 접착제층과 이형필름 상에 안착된 가죽을 마주보게 하여 합포시키고 권취하는 단계; 상기 권취된 롤을 130~150℃에서 12~36 시간 동안 숙성시키는 단계; 상기 권취된 롤을 풀면서 상기 배합지와 이형필름을 제거하는 단계; 및 상기 배합지가 제거된 폴리우레탄 수지층 표면에 1 nm ~ 5 nm 은나노 입자가 분산된 용액을 분사하여 은나노 입자층을 형성하는 단계를 포함하며, 상기에서 폴리우레탄 조성물은, 조성물 총 중량에 대하여 안료 13~18 중량%, 폴리우레탄 에멀젼 45~55 중량%, 메틸에틸케톤(MEK) 8~15 중량%, 디메틸포름아마이드(DMF) 3~7 중량%, 실리콘 3~7 중량%, 가교제 3~7 중량%, 우레탄 본드 3~7 중량% 및 우레탄 발포 폼(FOAM) 수지 3~7 중량%를 포함하는 것을 특징으로 하는 은나노 입자층이 코팅된 가죽원단의 제조방법에 관한 것이다.The present invention, the step of applying a polyurethane resin composition to a blended paper having a transfer pattern; Drying the polyurethane resin composition applied to the blended paper at a temperature of 100 to 110 ° C. to form a polyurethane resin layer; Applying an adhesive to the polyurethane resin layer and drying to form an adhesive layer; Enveloping and winding the leather facing the adhesive layer and the release film; Aging the rolled roll at 130 to 150 ° C. for 12 to 36 hours; Removing the blending paper and the release film while unwinding the wound roll; And forming a silver nanoparticle layer by spraying a solution in which 1 nm to 5 nm silver nanoparticles are dispersed on the surface of the polyurethane resin layer from which the blending paper is removed, wherein the polyurethane composition comprises pigment 13 based on the total weight of the composition. ~ 18% by weight, polyurethane emulsion 45-55% by weight, methyl ethyl ketone (MEK) 8-15% by weight, dimethylformamide (DMF) 3-7% by weight, silicone 3-7% by weight, crosslinking agent 3-7% It relates to a method for producing a leather fabric coated silver nanoparticles layer, characterized in that it comprises%, 3 to 7% by weight of the urethane bond and 3 to 7% by weight of the urethane foam foam (FOAM) resin.
본 발명에서 폴리우레탄 조성물을 종래의 약품처리식으로 가죽면에 직접 처리하면 가죽원단에 스며드는 문제가 발생하기 때문에, 별도의 배합지에 도포하고 이를 간접코팅방법으로 합지하여 폴리우레탄 수지층을 형성한다.In the present invention, when the polyurethane composition is directly treated on the leather surface by a conventional chemical treatment method, a problem that penetrates into the leather fabric occurs, it is applied to a separate compounding paper and laminated by the indirect coating method to form a polyurethane resin layer.
본 발명에서 폴리우레탄 조성물은 배합지 상에 공지의 방법에 의하여 도포될 수 있으며, 예컨대 롤러 인쇄 방식으로 도포할 수 있다. 그리고 도포된 폴리우레탄 수지 조성물의 건조는 100~110℃의 범위에서 수행하는 것이 폴리우레탄 수지 의 물성 저하 방지 측면에서 바람직하다.In the present invention, the polyurethane composition may be applied by a known method on the blended paper, for example by roller printing. And the drying of the coated polyurethane resin composition is preferably carried out in the range of 100 ~ 110 ℃ in terms of preventing the reduction of physical properties of the polyurethane resin.
본 발명에서 배합지는 전사 무늬가 형성되어 있어 후공정에서 배합지를 제거할 때, 배합지에 형성된 무늬가 폴리우레탄 수지층 상에 전사된다.In the present invention, the compounding paper is formed with a transfer pattern, and when the compounding paper is removed in a later step, the pattern formed on the compounding paper is transferred onto the polyurethane resin layer.
본 발명에서 폴리우레탄 수지층 위에 도포되는 접착제는, 이 분야에서 통상적으로 사용되는 것을 사용할 수 있다. 이러한 접착제로는 예컨대, 2액형 폴리우레탄 접착제를 들 수 있다. 또한, 이러한 접착제의 코팅은 롤러 인쇄 등의 공지의 방법에 의할 수 있다. As the adhesive applied to the polyurethane resin layer in the present invention, those commonly used in the art may be used. Such adhesives include, for example, two-component polyurethane adhesives. In addition, coating of such an adhesive agent can be carried out by well-known methods, such as roller printing.
본 발명에서 접착제의 건조는 20∼35℃에서 1~3분간 실시하는 것이 바람직하다. In this invention, it is preferable to perform drying of an adhesive for 1 to 3 minutes at 20-35 degreeC.
본 발명에서 접착제층과 이형필름 상에 안착된 가죽의 합포는 통상의 방법에 의하여 실시될 수 있으며, 예컨대, 유압 프레스 롤러를 사용할 수 있다.In the present invention, the adhesive layer and the leather seated on the release film may be carried out by a conventional method, for example, a hydraulic press roller may be used.
본 발명에서 합포 후에 권취된 롤은 130~150℃에서 12~36 시간 동안 숙성시키는데, 상기와 같은 온도 및 시간 범위에서 숙성시켜야 배합지 상의 무늬가 폴리우레탄 수지층에 잘 전사되고, 가죽 표면과 폴리우레탄 층이 견고한 결합을 형성하게 된다. In the present invention, the roll wound after the fabric is aged at 130 to 150 ° C. for 12 to 36 hours. The rolled material must be aged at the temperature and time as described above so that the pattern on the blend is well transferred to the polyurethane resin layer, and the leather surface and the poly The urethane layer will form a tight bond.
본 발명에서 사용되는 은나노 입자가 분산된 용액은 1 nm ~ 5 nm 은나노 입자를 에탄올, 메탄올, 프로판올, 부탄올, 이소프로필알콜(IPA), 디메틸포름아마이드(dimethylformamide; DMF), 아세톤, 데트라하이드로퓨란, 톨루엔, 및 물로 이루어진 군으로부터 선택되는 1종 단독 또는 2종 이상의 혼합 용매에 분산시켜서 제조하는 것이 바람직하다. Silver nanoparticles dispersed in the solution used in the present invention is 1 nm ~ 5 nm silver nanoparticles ethanol, methanol, propanol, butanol, isopropyl alcohol (IPA), dimethylformamide (dimethylformamide; DMF), acetone, detrahydrofuran It is preferable to disperse | distribute in 1 type, or 2 or more types of mixed solvents chosen from the group which consists of toluene, and water, and is prepared.
은나노 입자 분산 용액에는 은나노 입자의 부착력을 강화하기 위하여 바인더 성분이 더 포함될 수 있다.The silver nanoparticle dispersion solution may further include a binder component to enhance adhesion of the silver nanoparticles.
또한, 은나노 입자의 균일한 분산을 위하여 초음파 처리나 볼 밀링 처리를 실시할 수 있으며, 분산제로서 트린톤 X-100(Triton X-100), 아세트산, 세틸트리메틸 암모늄 브로마이드(Cetyltrimethyl ammonium bromide, CTAB), 이소프로필트리스(N-아미노에틸-아미노에틸)티타네이트(isopropyltris(N-aminoethyl-aminoethyl) titanate, INAAT), 3-아미노프로필트리에톡시-실란(3-Aminopropyltriethoxy-silane, APTS), PVP(Polyvinyl Pyrrolidone) 및 폴리(4-비닐페놀)로 이루어진 군으로부터 선택되는 1종 이상을 더 첨가하여 제조하는 것도 바람직하다. In addition, ultrasonic dispersion or ball milling may be performed to uniformly disperse the silver nanoparticles, and as a dispersant, triton X-100, acetic acid, cetyltrimethyl ammonium bromide (CTAB), Isopropyltris (N-aminoethyl-aminoethyl) titanate (INAAT), 3-Aminopropyltriethoxy-silane (APTS), PVP (Polyvinyl Pyrrolidone) and poly (4-vinyl phenol) is also preferably added by adding one or more kinds selected from the group consisting of.
본 발명의 은나노 입자층이 코팅된 가죽원단의 제조방법은, 폴리우레탄 수지층 표면에 은나노 입자가 분산된 용액을 분사하기 전에, 상기 폴리우레탄 수지층 표면에 은나노 입자 분산용액과의 친화력을 부여하는 계면활성제를 스프레이 하는 단계를 더 포함할 수 있다. 계면활성제는 동일 분자 내부에서 친수성기와 친유성기를 모두 포함하는 물질로서 세척력, 에멀젼 친화력, 분산력, 삼투력, 기포력의 특성을 지니고 있어서 은나노 입자 분산용액과 우수한 친화력을 나타낸다. The manufacturing method of the leather fabric coated with the silver nanoparticle layer of the present invention is an interface which gives affinity with the silver nanoparticle dispersion solution to the surface of the polyurethane resin layer before spraying a solution in which the silver nanoparticles are dispersed on the surface of the polyurethane resin layer. The method may further include spraying the active agent. Surfactant is a substance containing both hydrophilic and lipophilic groups in the same molecule, and has excellent affinity with silver nanoparticle dispersion solution because it has the characteristics of washing power, emulsion affinity, dispersibility, osmotic power, and foaming power.
본 발명의 제조방법에서는 계면활성제 중에서도 특히 삼투력이 우수하여 은나노 코팅액과의 친화력, 결속력이 가장 탁월한 팔미트산나트륨(CH3(CH2)14CO2Na)을 30 g/㎡의 비율로 스프레이 하여 사전 투여하는 것이 바람직하다. 상기 팔미트 산나트륨의 비율이 30 g/㎡ 미만이면 가죽원단에 은나노 코팅액과의 친화력이 충분히 제공되지 않으며, 팔미트산나트륨의 스프레이 비율이 30 g/㎡를 초과하게 되면 원단에 팔미트산나트륨이 불필요하게 과잉 투여되어 은나노 코팅 표피재의 제조원가가 상승하게 된다.In the preparation method of the present invention, sodium palmitate (CH 3 (CH 2 ) 14 CO 2 Na) is sprayed at a rate of 30 g / m 2 among the surfactants, which is particularly excellent in osmotic power and excellent in affinity and binding strength with silver nano coating solution. Pre-administration is preferred. When the ratio of sodium palmitate is less than 30 g / m 2, the affinity with the silver nanocoating solution is not sufficiently provided on the leather fabric, and when the spray ratio of sodium palmitate exceeds 30 g / m 2, sodium palmitate on the fabric This unnecessarily overdose increases the manufacturing cost of the silver nano-coated skin material.
본 발명의 은나노 입자층이 코팅된 가죽원단의 제조방법은 상기에서 형성된 은나노 입자층을 건조하는 단계를 더 포함할 수 있다. 상기 건조 조건은 특별히 한정되지 않으며, 예컨대, 50~100℃의 열풍에 의해 건조할 수 있다.The method of manufacturing a leather fabric coated with the silver nanoparticle layer of the present invention may further include drying the silver nanoparticle layer formed above. The said drying conditions are not specifically limited, For example, it can dry by hot air of 50-100 degreeC.
본 발명에서 상기 폴리우레탄 수지 조성물은 조성물 총 중량에 대하여 안료 13~18 중량%의 안료를 포함한다. 상기 안료로는 체질안료 및/또는 착색안료가 사용될 수 있으며, 이 분야에서 통상적으로 사용되는 것이라면 특별히 제한되지 않는다. 바람직하게는 토너(toner)를 사용할 수 있으며, 토너는 천연피혁의 자연스러운 맛을 구현하는데 적합하며, 표면에 우수한 내스크레치성을 제공하며, 유성 안료로서 컬러링(coloring)이 좋다. 안료의 함량은 13~18 중량%로 포함되는 것이 바람직한데, 13 중량% 미만으로 포함되면 천연피혁의 자연스러운 칼라를 구현하기 어려우며, 내스크레치성도 저하된다. 반면, 20 중량%를 초과하면 폴리우레탄 수지층의 접착력을 약화시킬 수 있다.The polyurethane resin composition in the present invention comprises a pigment of 13 to 18% by weight of the pigment relative to the total weight of the composition. As the pigment, extender pigments and / or pigmented pigments may be used, and are not particularly limited as long as they are commonly used in the art. Preferably, a toner may be used, and the toner is suitable for realizing the natural taste of natural leather, provides excellent scratch resistance to the surface, and has good coloring as an oily pigment. The content of the pigment is preferably contained in 13 to 18% by weight, when included in less than 13% by weight it is difficult to implement the natural color of natural leather, scratch resistance is also reduced. On the other hand, when it exceeds 20% by weight, it is possible to weaken the adhesive force of the polyurethane resin layer.
또한, 상기 폴리우레탄 조성물은 조성물 총 중량에 대하여 폴리우레탄 에멀젼 45~55 중량%로 포함한다. 상기 폴리우레탄 에멀젼은 물성이 강해 러 빙(rubbing)에 강하고 커버링이 뛰어나 우수한 내수 및 내유성을 갖는다. 상기 폴리우레탄 에멀젼이 45 중량% 미만으로 포함되는 경우, 러빙이나 커버링이 약화되며, 55 중량%를 초과하는 경우에는 가죽과의 접착력은 향상되나 상대적으로 다른 성분들의 함량이 줄어들어 물성이 우수한 도막을 형성하기 어렵다.In addition, the polyurethane composition comprises 45 to 55% by weight of the polyurethane emulsion based on the total weight of the composition. The polyurethane emulsion has excellent physical and strong rubbing, excellent covering, and excellent water and oil resistance. When the polyurethane emulsion is included in less than 45% by weight, rubbing or covering is weakened, when the polyurethane emulsion exceeds 55% by weight, but the adhesion to leather is improved, but the content of other components is relatively reduced to form a coating film having excellent physical properties. Difficult to do
또한, 상기 폴리우레탄 조성물은 유기 용매로서 메틸에틸케톤(MEK) 8~15 중량% 및 디메틸포름아마이드(DMF) 3~7 중량%를 포함한다. 특히, DMF는 상기와 같은 함량으로 포함되는 경우에, 폴리우레탄 수지층에 포깅(fogging)이나 핀홀(pine-hole) 현상이 발생하는 것을 방지하며, 은나노 입자층이 형성된 폴리우레탄 수지층이 스프트(soft)하게 유지되도록 한다. In addition, the polyurethane composition comprises 8 to 15% by weight of methyl ethyl ketone (MEK) and 3 to 7% by weight of dimethylformamide (DMF) as an organic solvent. Particularly, when DMF is included in the amount as described above, fogging or pin-hole phenomenon may be prevented from occurring in the polyurethane resin layer, and the polyurethane resin layer on which the silver nanoparticle layer is formed may be spun ( to remain soft.
또한, 상기 폴리우레탄 조성물은 조성물 총 중량에 대하여 실리콘 3~7 중량%를 포함하는 것이 바람직하다. 상기 실리콘은 가죽원단 자체의 스웰링(swelling)을 억제하고, 노이즈(noise) 현상을 제거하며, 폴리우레탄 수지층의 레벨링성을 좋게하여 가죽원단에 고급스러운 느낌을 제공한다. 상기 실리콘이 3 중량% 미만으로 포함되는 경우 상기와 같은 기능이 미약하며, 7 중량%를 초과하는 경우에는 폴리우레탄 수지층의 강도가 저하되어 러빙성을 약화시킬 수 있다. In addition, the polyurethane composition preferably comprises 3 to 7% by weight of silicone relative to the total weight of the composition. The silicone suppresses swelling of the leather fabric itself, removes noise, and improves the leveling property of the polyurethane resin layer to provide a luxurious feel to the leather fabric. When the silicone is included in less than 3% by weight, the above function is weak, and when the silicon is more than 7% by weight, the strength of the polyurethane resin layer may be lowered to weaken rubbing property.
또한, 상기 폴리우레탄 조성물은 조성물 총 중량에 대하여 가교제 3~7 중량%를 포함한다. 상기 가교제로는 이 분야에서 통상적으로 사용되는 것을 제한 없이 사용할 수 있다. 가교제가 상기 함량 범위를 벗어나는 경우, 폴리우레탄 수지층의 강도가 너무 소프트하거나 하드해지는 문제가 발생할 수 있다. In addition, the polyurethane composition comprises 3 to 7% by weight of the crosslinking agent based on the total weight of the composition. As the crosslinking agent, those conventionally used in the art may be used without limitation. When the crosslinking agent is out of the content range, a problem may occur that the strength of the polyurethane resin layer is too soft or hard.
또한, 상기 폴리우레탄 조성물은 본드 성분으로서, 조성물 총 중량에 대하여 우레탄 본드 3~7 중량% 및 우레탄 발포 폼(FOAM) 수지 3~7 중량%를 포함한다. 상기 우레탄 발포 폼(FOAM) 수지는 가죽의 손상을 커버하며이 밖에 상기 폴리우레탄 수지 조성물은 이 분야에서 통상적으로 사용되는 첨가제를 더 포함할 수 있다. In addition, the polyurethane composition includes, as a bond component, 3 to 7 wt% of the urethane bond and 3 to 7 wt% of the urethane foam foam (FOAM) resin based on the total weight of the composition. The urethane foam foam (FOAM) resin covers the damage of the leather and in addition the polyurethane resin composition may further include additives commonly used in the art.
이하, 본 발명을 실시예를 이용하여 더욱 상세하게 설명한다. 그러나 하기 실시예는 본 발명을 예시하기 위한 것으로서 본 발명은 하기 실시예에 의해 한정되지 않고 다양하게 수정 및 변경될 수 있다.Hereinafter, the present invention will be described in more detail with reference to Examples. However, the following examples are provided to illustrate the present invention, and the present invention is not limited to the following examples and may be variously modified and changed.
실시예 1: 은나노 입자층 및 폴리우레탄 수지층이 코팅된 가죽원단의 제조Example 1: Preparation of leather fabric coated with silver nanoparticle layer and polyurethane resin layer
조성물 총 중량에 대하여 토너 15 중량%, 폴리우레탄 에멀젼 50 중량%, 메틸에틸케톤(MEK) 10 중량%, 디메틸포름아마이드(DMF) 5 중량%, 실리콘 5 중량% 및 가교제 5 중량%, 우레탄 본드 5 중량% 및 우레탄 발포 폼(FOAM) 수지 5 중량%를 혼합하여 폴리우레탄 수지 조성물을 제조하였다.15 weight% toner, 50 weight% polyurethane emulsion, 10 weight% methyl ethyl ketone (MEK), 5 weight% dimethylformamide (DMF), 5 weight% silicone and 5 weight% crosslinking agent, urethane bond 5 A polyurethane resin composition was prepared by mixing the wt% and 5 wt% urethane foam foam (FOAM) resin.
무늬가 형성된 배합지에 상기 폴리우레탄 수지 조성물을 0.03 ㎛ 두께로 롤러 인쇄하고, 100~110℃의 온도의 건조기에 25~30초에 걸쳐 통과시켜 폴리우레탄 수지층을 형성하였다. 상기 폴리우레탄 수지층 상에, 2액형 폴리우레탄 접착제를 0.02 ㎛의 두께로 롤러 인쇄한 후, 20~35℃의 건조기에 2분에 걸쳐 통과시킨 다음, 배향된 폴리프로필렌(OPP; Oriented Polypropylene) 필름에 가죽원단을 안착시키면서 상기 접착제층과 가죽원단이 마주보도록 접촉시킨 상태에서 유압열 롤러기를 통과시켜 상기 폴리우레탄 수지층과 가죽원단을 합지시키는 동시에 권취하였다. 상기 권취된 롤을 130~150℃에서 12~36 시간 동안 숙성시킨 후, 배합지와 이형필름을 제거하고, 상기 폴리우레탄 수지층 위에 1 nm ~ 5 nm의 은나노 입자를 에탄올에 분산시켜 스프레이하고 80℃의 열풍으로 건조하여 상층으로서 은나노 입자층 및 중층으로서 폴리우레탄 수지층이 코팅된 가죽원단을 제조하였다. The polyurethane resin composition was roller-printed to a thickness of 0.03 μm on a patterned paper, and passed through a dryer at a temperature of 100 to 110 ° C. over 25 to 30 seconds to form a polyurethane resin layer. On the polyurethane resin layer, a two-component polyurethane adhesive was roller printed to a thickness of 0.02 μm, and then passed through a dryer at 20 to 35 ° C. for 2 minutes, followed by an oriented polypropylene (OPP) film. In the state in which the adhesive layer and the leather fabric were in contact with each other while seating the leather fabric on the fabric, the polyurethane resin layer and the leather fabric were laminated and wound at the same time. After the aged rolls were aged at 130 to 150 ° C. for 12 to 36 hours, the mixture and the release film were removed, and 1 nm to 5 nm of silver nanoparticles were dispersed in ethanol and sprayed on the polyurethane resin layer. It was dried by hot air at ℃ to prepare a leather fabric coated with a silver nanoparticle layer as a top layer and a polyurethane resin layer as a middle layer.
시험예 1: 은나노 입자층 및 폴리우레탄 수지층이 코팅된 가죽원단의 포깅(fogging), 핀홀(pine-hole) 현상 발생 여부 및 레벨링성 관찰; 및 크랙, 마모성, 접착력 및 신축성 테스트Test Example 1: Observation of the fogging, pin-hole phenomenon and leveling of the leather fabric coated with the silver nanoparticle layer and the polyurethane resin layer; And crack, abrasion, adhesion and elasticity testing
상기 실시예 1에서 제조된 가죽원단에 대하여 포깅(fogging)이나 핀홀(pine-hole) 현상 발생 여부 및 레벨링성을 관찰하고, 크랙, 마모성, 접착력 및 신축성 테스트를 진행하였다. 그 결과 포깅(fogging)이나 핀홀(pine-hole) 현상은 발생하지 않았으며, 레벨링성도 우수한 것이 확인되었다. 또한, 크랙현상은 나타나지 않았고, 접착력은 동일 부분을 강력접착테이프로 10회 이상 실험한 결과 은나노 입자층 및 폴리우레탄 수지층의 탈리가 나타나지 않았으며, 고무 지우개로 10회 이상 문지르는 방법으로 실험한 마모성 테스트에서도 우수한 결과를 나타내었다. 또한, 실제크기의 2배의 신축성을 나타내었다.The leather fabric produced in Example 1 was observed whether the fogging or pinhole (phen-hole) phenomenon occurs and the leveling, and the crack, wear, adhesion and elasticity test was performed. As a result, no fogging or pin-hole phenomenon occurred and the leveling property was also excellent. In addition, no cracking phenomenon was observed, and the adhesive force was tested ten times or more with the strong adhesive tape, and no detachment of the silver nanoparticle layer and the polyurethane resin layer was observed, and the abrasion test was performed by rubbing with a rubber eraser 10 times or more. Also showed excellent results. In addition, it showed elasticity twice the actual size.
시험예 2: 상층으로서 은나노 입자층 및 중층으로서 폴리우레탄 수지층이 코팅된 가죽원단의 항균력 테스트Test Example 2: Antimicrobial activity test of leather fabric coated with silver nanoparticle layer as upper layer and polyurethane resin layer as middle layer
상기 실시예 1에서 제조된 가죽원단의 항균 효과를 테스트 하였다. 결과는 하기 표 1에 나타내었다.The antimicrobial effect of the leather fabric prepared in Example 1 was tested. The results are shown in Table 1 below.
상기 표 1에서 확인되는 바와 같이, 본 발명의 은나노 입자층 및 폴리우레탄 수지층이 코팅된 가죽원단의 제조방법에 의해서 제조된 가죽원단은 매우 우수한 항균효과를 나타냈다.As confirmed in Table 1, the leather fabric produced by the manufacturing method of the leather fabric coated silver nanoparticle layer and polyurethane resin layer of the present invention showed a very excellent antibacterial effect.
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| US8765025B2 (en) | 2010-06-09 | 2014-07-01 | Xerox Corporation | Silver nanoparticle composition comprising solvents with specific hansen solubility parameters |
| CN104290424A (en) * | 2014-11-06 | 2015-01-21 | 苏州爱马仕服饰有限公司 | Fly-preventing anti-bacterial fabric |
| KR101537501B1 (en) * | 2015-03-12 | 2015-07-16 | 조충희 | Swings for a baby |
| KR101770219B1 (en) | 2016-03-11 | 2017-08-22 | 주식회사 대신테크젠 | Anti-bacterial and radiant heat smart wear |
| CN115369192A (en) * | 2022-08-05 | 2022-11-22 | 焦作隆丰皮草企业有限公司 | Leather fabric and preparation method thereof |
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| CN115369192A (en) * | 2022-08-05 | 2022-11-22 | 焦作隆丰皮草企业有限公司 | Leather fabric and preparation method thereof |
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