KR20010066984A - Composition ingredients of natural leather for absorption of electromagnetic wave and bacteria repression, and manufacture method thereof - Google Patents
Composition ingredients of natural leather for absorption of electromagnetic wave and bacteria repression, and manufacture method thereof Download PDFInfo
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- 239000010985 leather Substances 0.000 title claims abstract description 80
- 239000000203 mixture Substances 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000010521 absorption reaction Methods 0.000 title description 11
- 241000894006 Bacteria Species 0.000 title description 7
- 239000004615 ingredient Substances 0.000 title 1
- 239000000463 material Substances 0.000 claims abstract description 20
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims abstract description 9
- 229920006264 polyurethane film Polymers 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 229920002635 polyurethane Polymers 0.000 claims abstract description 6
- 239000004814 polyurethane Substances 0.000 claims abstract description 6
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 239000011247 coating layer Substances 0.000 claims abstract description 4
- 230000000845 anti-microbial effect Effects 0.000 claims description 34
- 239000007921 spray Substances 0.000 claims description 10
- 239000011230 binding agent Substances 0.000 claims description 9
- 239000004599 antimicrobial Substances 0.000 claims description 8
- 239000011358 absorbing material Substances 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims description 3
- 238000005282 brightening Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 235000015277 pork Nutrition 0.000 claims 1
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 16
- 238000005498 polishing Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 239000007822 coupling agent Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 11
- 239000000243 solution Substances 0.000 description 11
- 239000002966 varnish Substances 0.000 description 11
- 241000233866 Fungi Species 0.000 description 5
- 241000588724 Escherichia coli Species 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 3
- 238000007730 finishing process Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 210000003491 skin Anatomy 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000004209 hair Anatomy 0.000 description 2
- 230000004941 influx Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 238000007517 polishing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 241001360526 Escherichia coli ATCC 25922 Species 0.000 description 1
- 229910019086 Mg-Cu Inorganic materials 0.000 description 1
- 241000589517 Pseudomonas aeruginosa Species 0.000 description 1
- 208000004756 Respiratory Insufficiency Diseases 0.000 description 1
- 241000219094 Vitaceae Species 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 210000004207 dermis Anatomy 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 235000021021 grapes Nutrition 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 201000004193 respiratory failure Diseases 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/10—Metal compounds
- C08K3/11—Compounds containing metals of Groups 4 to 10 or of Groups 14 to 16 of the Periodic Table
-
- 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
- C09D5/32—Radiation-absorbing 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
- C14C11/00—Surface finishing of 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
- C14C11/00—Surface finishing of leather
- C14C11/003—Surface finishing of leather using macromolecular compounds
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
Description
본 발명은 천연가죽의 조성물 및 그 제조방법에 관한 것으로, 특히 전자기기 등지에서 발생하는 전자파를 차폐시켜 인체의 유입을 최소화시키고 가죽내에 상존하는 수분으로 인한 세균증식을 막아 주는 전자파흡수 항균기능을 갖는 천연가죽시트의 조성물 및 그 제조방법에 관한 것이다.The present invention relates to a composition of natural leather and a method of manufacturing the same, in particular, to minimize the influx of the human body by shielding the electromagnetic waves generated in electronic devices, etc. having an electromagnetic wave absorption antibacterial function to prevent bacterial growth due to the water present in the leather The present invention relates to a composition of a natural leather sheet and a method of manufacturing the same.
종래에는 천연가죽에서 발생하는 곰팡이를 억제하기 위한 방법으로 곰팡이의 억제를 막아주도록 강성이 있는 유기성물질을 사용하는 경우는 있지만 이는 강성에 의하여 인체의 접촉시 악영향을 줄 수 있고, 강한 휘발성으로 작업자에게 호흡기 장애를 일으킬 수 있다. 그리고 전자파흡수 천연가죽에 관하여 보고된 바는 없지만 전자파를 차단하는 물질로서 전도성 물질을 이용하여 전도성 표면코팅처리 기술로서 천연가죽을 제조하는 경우 도전성층에서 전자파를 집적하여 인체를 통하여 흐르게 됨으로서 사용자의 인체에 나쁜 영향을 초래할 수 있다.Conventionally, a rigid organic material is used to prevent the mold from being suppressed as a method for suppressing the mold generated from natural leather, but this may adversely affect the human body due to its rigidity, and it is highly volatile to the worker. May cause respiratory failure. There is no report on electromagnetic wave absorbing natural leather, but when manufacturing natural leather as a conductive surface coating treatment technology using a conductive material as a material that blocks electromagnetic waves, the electromagnetic wave is accumulated in the conductive layer and flows through the human body. It can cause a bad effect on.
한편 항균에 관한 기술로는 플라스틱, 에폭시, 타일에 유기 또는 무기계통 항균물질를 사용하여 상품화된 제품으로 물통, 인조가죽시트, 섬유, 도료 등 다방면에 걸쳐 상품화가 이루어졌으나, 세균이나 곰팡이의 서식처로 작용이 가능한 천연가죽에는 적용된 바가 전무하다.On the other hand, antimicrobial technology is commercialized by using organic or inorganic antimicrobial materials on plastics, epoxy, tiles, etc., and commercialized in various fields such as buckets, artificial leather sheets, textiles, paints, etc. There is no application of this possible natural leather.
천연가죽의 경우 자체적으로 일정량의 수분을 항상 함유하고 있어 기온변화가 심한 계절이나 장마철 등에는 과도한 곰팡이 발생으로 자체 제품뿐만 아니라 주위에 함께 보관중이거나 사용중인 제품에도 악영향을 초래하는 심각한 문제점이 있다.Natural leather always contains a certain amount of moisture in itself, so there is a serious problem of causing excessive mold in severe seasons or during the rainy season and causing adverse effects not only on its own products but also on products stored or used together.
기존의 천연가죽제품의 제조공정을 살펴보면 다음과 같다.Looking at the manufacturing process of the existing natural leather products as follows.
1. 가죽의 오물 및 털제거1. Removing dirt and hair from leather
가죽의 변질을 방지하기 위해서 염장한 가죽을 세척하고 표면의 털 제거To prevent the leather from deteriorating, wash the leather and remove the surface hair
2. 기름층 제거2. Remove oil layer
가죽의 이면에 붙어있는 기름층을 제거하여 순수한 가죽층만 형성Removes the oil layer on the back of the leather to form only a pure leather layer
3. 재혁(tanning)3. tanning
약한 생가죽 조직의 물리적 성질을 높이기 위한 작업으로 금속염이나 재혁 물질로 가죽을 흡착Adsorption of leather with metal salt or leather material to improve the physical properties of weak raw leather tissue
4. 가공4. Processing
가죽의 뒷면(진피층)을 깍아서 요구하는 두께로 가공Cut the back of the leather (dermis layer) to the required thickness
5. 염색5. Dyeing
염색조에 가죽을 투입하여 원하는 색깔로 가죽을 염색Put the leather in the dye bath to dye the leather
6. 건조6. Drying
염색된 상태의 가죽에 포함되는 수분을 건조Dry moisture contained in dyed leather
7. 마무리(finishing)7. finishing
원하는 최종의 색이 날 수 있도록 가죽표면을 도장하고, 도장된 색상을 보호할 수 있도록 광택을 낸다.Paint the leather surface to get the final color you want, and polish it to protect the painted color.
상기에 예시한 바와 같은 제조공정에 의해서 제조되는 기존의 가죽은 색깔 등의 미관상에만 치중하고 다른 기능적인 장점은 제공하지 못한다.Existing leather manufactured by the manufacturing process as exemplified above is focused only on aesthetics such as color and does not provide other functional advantages.
본 발명의 목적은 상기한 바와 같이 전자파를 차폐시키고, 종래 가죽제품이 습도가 많은 곳에서 가죽에 곰팡이 및 세균들이 발생하는 문제점 해결하기 위해 발명된 것으로 천연가죽 제조공정중 재혁공정이나 염색공정, 마무리공정 중에서 전자파를 흡수할 수 있는 물질이나 항균제 을 첨가한 조성물을 조성하므로서 천연가죽에 전자파흡수 기능을 주고, 또한 천연가죽을 인체에 무해한 무기 항균물질을 이용하여 표면처리를 하므로 기존의 가죽제품에서 문제가 되는 곰팡이 및 각종 세균의 발생을 억제할 수 있다. 따라서 전자파흡수물질을 가죽에 흡착시켜서 인체와 전자기기 등에 유해하다고 알려져 있는 유해전자파를 차단시키는 효과와 마무리공정에서 첨가된 무기 항균물질은 세균 및 곰팡이 억제할 수 있는 가죽제품의 조성물과 그 제조방법을 제공함에 본 발명의 목적이 있다.An object of the present invention is to invent electromagnetic shielding as described above, and to solve the problem that mold and bacteria occur in the leather in a place where the conventional leather products have a high humidity, leather processing, dyeing process, finishing of natural leather manufacturing process It is a problem in existing leather products because it provides electromagnetic absorption function to natural leather by forming a composition which can absorb electromagnetic waves or antibacterial agent during the process, and the surface treatment of natural leather using inorganic antibacterial material which is harmless to human body. The occurrence of mold and various bacteria can be suppressed. Therefore, the effect of blocking the electromagnetic wave known to be harmful to the human body and electronic devices by adsorbing the electromagnetic wave absorbing material on the leather and the inorganic antimicrobial material added in the finishing process can be used to control the composition of leather products and the method of manufacturing the same. It is an object of the present invention to provide.
상기와 같은 목적을 달성하기 위한 본 발명은 천연가죽(우피, 양피, 동피)에 입자크기가 0.1∼10㎛ 전자파흡수분말(Mn-Zn-, Ni-Zn-, Mg-Zn-, Mg-Cu-Zn-ferrite 등) 5∼40중량%를 사용하여 결합제에 혼합 조성하고, 0.1∼2.5㎛ 무기 항균물질(Cu-, Zn-, Ag-제올라이트, Ag-Zn-제올라이트, Ag-Ca phosphate, Ag-Zr phosphate)는 polyurethane이나 광택제(무광, 유광)에 0.5∼5중량% 혼합하여 천연가죽을 제조한 것이다.The present invention for achieving the above object is 0.1 ~ 10㎛ electromagnetic wave absorption powder (Mn-Zn-, Ni-Zn-, Mg-Zn-, Mg-Cu) in natural leather (wool, sheepskin, copper skin) -Zn-ferrite, etc.), 5 to 40% by weight of the binder composition, 0.1 to 2.5㎛ inorganic antimicrobial material (Cu-, Zn-, Ag-zeolite, Ag-Zn-zeolite, Ag-Ca phosphate, Ag -Zr phosphate) is made of natural leather by mixing 0.5 to 5% by weight of polyurethane or varnish (matte, polished).
상기와 같은 본 발명 조성물을 제조하기 위해서는 천연가죽용 결합제에 입자크기가 0.1∼10㎛인 전자파흡수분말(Mn-Zn-, Ni-Zn-, Mg-Zn-, Mg-Cu-Zn-ferrite 등) 5∼40중량%를 혼합하여 조성물을 만들었다. 항균조성물은 polyurethane이나 광택제(무광, 유광)에 0.1∼2.5㎛, 0.5∼5중량% 무기 항균물질을 첨가시켜 조성하는 혼합공정과;In order to prepare the composition of the present invention as described above, the electromagnetic wave absorption powder (Mn-Zn-, Ni-Zn-, Mg-Zn-, Mg-Cu-Zn-ferrite, etc.) having a particle size of 0.1 to 10 μm in a binder for natural leather. 5 to 40% by weight of the mixture was prepared. The antimicrobial composition includes a mixing step of adding 0.1-2.5 μm, 0.5-5% by weight of inorganic antimicrobial material to a polyurethane or a polishing agent (matte, polished);
상기 조성물을 이용하여 film제조 공정이나 스프레이공정으로 분사하여 표면층을 만들고, 60∼100℃에서 건조하는 건조공정을 통하여 제조되는 것이다.The composition is sprayed by a film production process or a spray process using the composition to make a surface layer, and is prepared through a drying process drying at 60 ~ 100 ℃.
전자파흡수 천연가죽은 기존의 천연가죽의 제조공정 중 재혁공정이나 염색공정, 마무리(finishing)단계 중에서 결합제(binder) 용액에 0.1∼10㎛ 전자파흡수분말을 분산 후 분산된 용액을 스프레이기를 이용하여 가죽표면에 일정량을 균일하게 분사하여 가죽에 흡착시킨다. 전자파흡수물질이 흡착된 가죽은 건조과정을 거치고, 그후 polyurethane film이나 광택제으로 가죽표면에 코팅층을 형성시켜 외부로부터 오염을 방지하고 가죽의 세척시에도 전자파흡수물질이 손상되거나 인체에 묻는 현상을 방지하였다.Electromagnetic Wave Absorption Natural leather is made by dispersing 0.1 ~ 10㎛ electromagnetic wave absorbing powder in binder solution during re- leathering, dyeing and finishing stages of existing natural leather manufacturing process. Evenly spray a certain amount on the surface to adsorb to the leather. Leather adsorbed with electromagnetic wave absorber is dried and then coated with polyurethane film or varnish on the leather surface to prevent contamination from the outside and to prevent damage to human body or damage to human body. .
항균가죽의 제조방법 및 조성은 기존의 천연가죽 제작공정 중 마무리 (finishing)단계인 코팅공정이나 광택공정에서;The manufacturing method and composition of the antibacterial leather is in the coating process or the polishing process, which is a finishing step of the existing natural leather manufacturing process;
코팅공정은 polyurethane에 입자 크기가 2∼2.5㎛ 무기 항균물질 10중량%를 혼합하여 최종 코팅필림층이 제조되며,In the coating process, the final coating film layer is prepared by mixing 10 wt% of the inorganic antimicrobial material with a particle size of 2 to 2.5㎛ in polyurethane,
광택공정은 사용되는 신나 90중량%에 입자 크기가 0.1∼2.5㎛ 무기 항균물질 10중량%를 분산하여 농축용액을 제조하였다. 이 용액은 다시 광택제(무광, 유광)와 일정량으로 혼합하여 최종적으로 0.5∼5중량%의 항균 광택 용액을 제조한다. 이렇게 제조된 용액은 스프레이를 이용하여 가죽표면에 일정량을 균일하게 분사하여 가죽표면에 흡착 후 건조하여 제조하는 것이다.In the polishing process, a concentrated solution was prepared by dispersing 10 wt% of the inorganic antimicrobial material having a particle size of 0.1 to 2.5 μm in 90 wt% of the thinner used. This solution is again mixed with a polishing agent (matte, polished) in a predetermined amount to finally prepare 0.5 to 5% by weight of an antimicrobial gloss solution. The solution thus prepared is prepared by spraying a certain amount uniformly on the leather surface using a spray, adsorbing on the leather surface and drying.
이하, 상기와 같은 본 발명 전자파흡수 및 항균 천연가죽 조성물 및 그 제조방법에 따른 바람직한 실시예를 살펴본다.Hereinafter, look at a preferred embodiment according to the present invention, the electromagnetic wave absorption and antimicrobial natural leather composition and method for producing the same.
먼저 제 1 실시예로, 우피, 양피, 돈피를 입자크기가 0.1∼10㎛인 전자파흡수물질(Mn-Zn-, Ni-Zn-, Mg-Zn-, Mg-Cu-Zn-ferrite 등) 5∼40중량%를 결합제에 혼합하여 조성된 조성물을 스프레이방법으로 가죽표면에 흡착 후 60∼100℃ 온도범위에서 건조하였다. 그리고 천연가죽표면 흡착층을 보호하고자 polyurethane film으로 코팅처리를 하였다.First, in the first embodiment, the electromagnetic wave absorbing material (Mn-Zn-, Ni-Zn-, Mg-Zn-, Mg-Cu-Zn-ferrite, etc.) having a particle size of 0.1-10 μm in the right skin, sheepskin, and pig skin 5 The composition prepared by mixing 40 wt% of the binder with the binder was adsorbed onto the leather surface by the spray method and dried at a temperature in the range of 60 to 100 ° C. And to protect the natural leather surface adsorption layer was coated with polyurethane film.
제 2 실시예로는, 제 1 실시예에서 제조된 전자파흡수 천연가죽의 표면에 항균능력을 부여하기 위하여 polyurethane에 0.1∼2.5㎛ 무기 항균물질(CWT-A, CHEM WORLD TECH CO.)를 0.5∼5중량% 첨가하여 제조된 항균 polyurethane film을 코팅하였다.In the second embodiment, in order to impart antimicrobial ability to the surface of the electromagnetic wave absorbing natural leather manufactured in the first embodiment, 0.1 to 2.5 μm inorganic antimicrobial material (CWT-A, CHEM WORLD TECH CO.) Is 0.5 to The antimicrobial polyurethane film prepared by adding 5% by weight was coated.
제 3 실시예로는, 제 2실시예에 기술된 polyurethane film 코팅층 대신에 광택제(무광이나 유광)에 0.1∼2.5㎛ 무기 항균물질(CWT-A, CHEM WORLD TECH CO.)를 0.5∼5중량% 혼합하여 조성된 항균 광택액 조성물을 스프레이방법으로 분사시켜 항균 광택층을 제조하였다.In the third embodiment, 0.5-5% by weight of an inorganic antimicrobial material (CWT-A, CHEM WORLD TECH CO.) Is used in a polishing agent (matte or glossy) instead of the polyurethane film coating layer described in the second embodiment. The antimicrobial varnish composition was prepared by spraying by spraying to prepare an antimicrobial varnish layer.
제 4 실시예로는, 제 3 실시예에서 제조된 항균 광택액 조성물 제조방법은 분산성을 양호하게 하기 위하여 먼저 신나 90중량%에 무기항균제를 10중량% 혼합한 농축용액을 제조하였다. 이 용액은 다시 광택제(무광, 유광)와 일정비율로 혼합되어 0.5∼5중량%가 혼합된 항균 광택액으로 제조된다. 이와 같은 방법으로 항균 광택제를 제조함으로서 분산성이 양호하면서 작업자들이 쉽게 항균 광택제를 제조 사용할 수 있도록 할 수 있으며, 기후의 변화에 무관하게 항균 광택 제조작업이 가능하며, 제조된 항균 농축용액은 장기간 보관 및 운반이 용이하다.In the fourth embodiment, the antimicrobial varnish composition prepared in Example 3 was prepared in a concentrated solution in which 10% by weight of an inorganic antimicrobial agent was mixed with 90% by weight of thinner to improve dispersibility. This solution is again mixed with a polishing agent (matte, polished) in a constant ratio to prepare an antimicrobial polishing liquid containing 0.5 to 5% by weight. By producing antibacterial varnishes in this way, it is possible to make the antibacterial varnishes easily available to workers while dispersibility is good, and it is possible to manufacture antibacterial varnishes regardless of climate change, and the prepared antimicrobial concentrate solution is stored for a long time. And easy to carry.
이 때 신나와 광택제를 2:1의 비율로 혼합하였다.At this time, the thinner and the polish were mixed at a ratio of 2: 1.
제 5 실시예로는, 제 4 실시예에서 제조된 항균 광택제를 기존 천연가죽 표면에 스프레이방법으로 분사시켜 항균 광택층이 있는 항균 천연가죽을 제조한다.In the fifth embodiment, the antimicrobial varnish prepared in the fourth embodiment is sprayed onto the surface of the existing natural leather to produce an antimicrobial natural leather with an antimicrobial varnish layer.
한편, 상기 실시예에 따라 개발된 제품은 저주파에서 고주파에 이르는 광범위한 전자파 영역에서 전자파 차폐효과가 있음을 알 수 있었고, 특히 800∼900Mz, 1600∼3000MHz대역에서의 흡수효과가 우수하게 나타났다.On the other hand, the product developed according to the above embodiment was found to have an electromagnetic shielding effect in a wide range of electromagnetic waves from low to high frequencies, especially in the 800 ~ 900Mz, 1600 ~ 3000MHz band was excellent in the absorption effect.
전자파흡수물질을 결합제 용액에 분산한 후 용액을 가죽표면에 스프레이방법으로 균일하게 분사하여 가죽에 흡착시킨다. 그후 polyurethane film으로 가죽표면에 코팅층을 형성시켜 외부로부터 오염을 방지하고 가죽의 세척시에도 전자파흡수체 물질이 손상되거나 인체에 묻는 현상을 방지하였다.After the electromagnetic wave absorbing material is dispersed in the binder solution, the solution is evenly sprayed onto the leather surface and adsorbed onto the leather. After that, a coating layer was formed on the leather surface with a polyurethane film to prevent contamination from the outside and to prevent damage to the electromagnetic wave absorber material or to the human body even when the leather was washed.
항균제처리는;Antimicrobial treatment;
Polyurethane에 무기 항균물질을 0.5~5중량% 첨가하여 film을 만들거나, 가죽의 마무리공정에서 사용되는 신나와 광택제가 2:1의 비율로 혼합된 용액에 0.5∼5중량%의 무기 항균물질을 분산시킨 후 스프레이방식으로 가죽표면에 광택처리를 한다. 이때 광택제와 함께 분사된 항균물질은 가죽표면에 흡착되어 기존의 가죽제품들이 갖고있던 곰팡이 생성 문제를 해결하고, 다른 세균들의 성장도 억제되는 효과를 함께 나타낸다.0.5 to 5% by weight of inorganic antimicrobial material is added to the polyurethane to make a film, or 0.5 to 5% by weight of inorganic antimicrobial is dispersed in a solution in which the thinner and the varnish used in the finishing process of leather are 2: 1 ratio. After spraying, polish the leather surface by spraying. At this time, the antimicrobial material sprayed with the brightening agent is adsorbed on the leather surface to solve the mold production problem of the existing leather products, and also has the effect of inhibiting the growth of other bacteria.
또한 이 두가지 방법을 함께 적용하여 전자파흡수 및 항균효과 기능을 갖는 가죽제품을 만들 수 있다.In addition, the two methods can be applied together to make leather products with electromagnetic absorption and antibacterial effects.
상기 결과에서, 첨가되는 전자파흡수 물질의 양과 종류에 따라 전자파흡수대역이 다르게 나타났으며, 첨가량이 많을수록 흡수능력은 우수하게 나타났다. 또한 전자파흡수체의 자체 항균능력으로 천연가죽 내부에 존재하는 곰팡이 및 세균들의 억제능력을 가짐으로서 제품의 수명을 연장할 수 있었고, 외부로부터 침투되는 곰팡이균이나 세균들을 마무리공정에서 사용된 무기 항균제로 인하여 99%이상 항균능력을 가짐을 확인할 수 있었고, [표 1]에 그 결과를 나타내었다.In the above results, the electromagnetic wave absorption band was different according to the amount and type of the electromagnetic wave absorbing material added, and the higher the amount added, the better the absorption capacity. In addition, the antimicrobial ability of the electromagnetic wave absorber can extend the life of the product by inhibiting mold and bacteria existing in the natural leather. It was confirmed that it has an antibacterial ability of more than 99%, the results are shown in [Table 1].
시험 결과에 의하면 본 발명이 적용된 시편은 대장균에 대하여 항균효과가 있음을 확인할 수 있었으며, 상기 설명한 대장균 뿐만 아니라 곰팡이균, 내성황색포도균, 녹농균 등에서도 유사한 결과를 보여 줌을 확인할 수 있었다. 천연가죽을 장기간 밀폐된 공간에 방치한 경우에서도 무처리 천연가죽에서는 곰팡이균이 발생하였지만, 항균처리 천연가죽에서는 전혀 곰팡이균을 확인할 수 없었다.According to the test results, it was confirmed that the specimen to which the present invention was applied had an antimicrobial effect against E. coli, and showed similar results in E. coli as well as fungi, resistant yellow grapes, and Pseudomonas aeruginosa. Even when the natural leather was left in an enclosed space for a long time, fungi were generated in the untreated natural leather, but no fungus was identified in the antibacterial natural leather at all.
본 실험에서 시편 표면적은 1cm×1cm이고, 실험액(1/10배의 Nutrient Broth 20㎖)을 25℃에서 24시간 진탕 배양후, 균수 측정(진탕 회전수 150rpm/min)을 하였으며, 측정방법은 Shake flask 방법, 대장균은 Escherichia coli ATCC25922를 사용하였다.In this experiment, the surface area of the specimen was 1cm × 1cm, and the test solution (1 / 10-fold Nutrient Broth 20mL) was shaken at 25 ° C. for 24 hours, and the bacterial count was measured (shaking speed 150rpm / min). Shake flask method, Escherichia coli ATCC25922 was used for Escherichia coli.
[표 1]TABLE 1
(단위: 마리수/㎖; n=6)(Unit: number / ml; n = 6)
이상 설명한 바와 같이 본 발명의 조성물 및 그 제조방법은 전자파흡수능력이나 항균기능을 갖는 휴대폰 케이스, 각종 가전기기 케이스, 가방류, 소파와 같은 시트, 의류 등에 응용되어 전자파를 차폐하고 기존의 가죽제품들이 갖고 있던 대장균 및 곰팡이균, 다른 세균들의 성장도 함께 억제되는 효과가 나타난다.As described above, the composition of the present invention and a method of manufacturing the same are applied to a mobile phone case having various kinds of electromagnetic wave absorbing ability or antimicrobial function, various home appliance cases, bags, sofa-like sheets, clothes, etc. to shield electromagnetic waves and have existing leather products. E. coli and fungi, and the growth of other bacteria were also suppressed.
이상에서 본 발명의 특정한 실시예를 설명 및 도시하였지만 본 발명은 당업자에 의하여 다양하게 변형되어 실시될 가능성이 있는 것이 자명한 일이다.Although specific embodiments of the present invention have been described and illustrated above, it is obvious that the present invention may be embodied in various modifications by those skilled in the art.
이와 같이 변형된 실시예들은 본 발명의 기술적 사상이나 전망으로부터 개별적으로 이해되어져서는 인되며, 이와 같이 변형된 실시예들은 본 발명의 첨부된 특허청구범위 안에 속한다 해야 할 것이다.Such modified embodiments are to be understood individually from the technical spirit or the prospect of the present invention, and such modified embodiments should fall within the appended claims of the present invention.
상기와 같이 본 발명은 대기중에 상존하는 전자파나 모빌폰 등에서 발생하는 전자파의 인체 유입을 차단하기 위하여 천연가죽 제조용 결합제에 전자파흡수물질을 첨가하여 전자파흡수 천연가죽을 제조하고, 천연가죽 마무리공정에서 무기 항균물질를 첨가한 코팅층이나 광택층으로 이루어진 천연가죽을 제조함으로서 제품의 수명 연장과 천연가죽 자체내에서 항상 존재하는 수분으로 인한 곰팡이균이나 각종 세균들을 억제하여 환경친화적인 제품을 만드는데 있다.As described above, the present invention adds an electromagnetic wave absorbing material to the binder for producing natural leather in order to block the influx of electromagnetic waves generated from the electromagnetic waves or mobile phones existing in the air, thereby preparing the electromagnetic wave absorbing natural leather, and in the natural leather finishing process By producing a natural leather made of a coating layer or a gloss layer with the addition of antimicrobial substances, it is to make products environmentally friendly by prolonging the life of the product and suppressing fungi and various bacteria due to the moisture that is always present in the natural leather itself.
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| KR100489725B1 (en) * | 2002-06-24 | 2005-05-16 | 박주민 | The processing method of natural leather |
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