KR20220025488A - Manufacturing method of eco-friendly ink for digital printing using natural indigo pigment - Google Patents
Manufacturing method of eco-friendly ink for digital printing using natural indigo pigment Download PDFInfo
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- KR20220025488A KR20220025488A KR1020200106245A KR20200106245A KR20220025488A KR 20220025488 A KR20220025488 A KR 20220025488A KR 1020200106245 A KR1020200106245 A KR 1020200106245A KR 20200106245 A KR20200106245 A KR 20200106245A KR 20220025488 A KR20220025488 A KR 20220025488A
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- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 235000000177 Indigofera tinctoria Nutrition 0.000 title claims abstract description 44
- 229940097275 indigo Drugs 0.000 title claims abstract description 44
- 238000007639 printing Methods 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000000049 pigment Substances 0.000 title abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 50
- 239000012860 organic pigment Substances 0.000 claims abstract description 25
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 22
- COHYTHOBJLSHDF-BUHFOSPRSA-N indigo dye Chemical compound N\1C2=CC=CC=C2C(=O)C/1=C1/C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-BUHFOSPRSA-N 0.000 claims abstract description 21
- 239000004753 textile Substances 0.000 claims abstract description 19
- 239000002105 nanoparticle Substances 0.000 claims abstract description 18
- 239000012266 salt solution Substances 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 239000000654 additive Substances 0.000 claims abstract description 11
- 239000006228 supernatant Substances 0.000 claims abstract description 9
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000010298 pulverizing process Methods 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims abstract description 6
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 claims abstract description 6
- 235000019345 sodium thiosulphate Nutrition 0.000 claims abstract description 6
- 239000002244 precipitate Substances 0.000 claims abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000001301 oxygen Substances 0.000 claims abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 4
- 230000001376 precipitating effect Effects 0.000 claims abstract description 4
- 238000001238 wet grinding Methods 0.000 claims abstract description 4
- 230000000996 additive effect Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000002518 antifoaming agent Substances 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 4
- 239000002562 thickening agent Substances 0.000 claims description 4
- 239000003112 inhibitor Substances 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 230000003020 moisturizing effect Effects 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 239000000976 ink Substances 0.000 description 44
- 241001062009 Indigofera Species 0.000 description 35
- 239000000975 dye Substances 0.000 description 11
- 238000004043 dyeing Methods 0.000 description 11
- 239000004744 fabric Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 229930182559 Natural dye Natural products 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000978 natural dye Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 239000001045 blue dye Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 125000001731 2-cyanoethyl group Chemical group [H]C([H])(*)C([H])([H])C#N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 241000237502 Ostreidae Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000986 disperse dye Substances 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003906 humectant Substances 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000020636 oyster Nutrition 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 235000020995 raw meat Nutrition 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
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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
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/08—Printing inks based on natural resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B61/00—Dyes of natural origin prepared from natural sources, e.g. vegetable sources
-
- 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
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
- C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/34—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using natural dyestuffs
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Coloring (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
본 발명은 천연인디고 색소를 이용한 디지털 텍스타일 프린팅용 친환경잉크 제조방법에 관한 발명으로, 천연인디고 분말에 수산화나트륨을 혼합하고 pH를 10 ~ 12로 조절하여 제1조성물을 조성하는 단계(S10)와, 제1조성물에 차아황산나트륨을 혼합하고 천연인디고를 수용성으로 변환하여 제2조성물을 조성하는 단계(S20)와, 제2조성물의 불순물을 침전하고 상등액을 분리하여 수용성 인디고 염액을 수득하는 단계(S30)와, 수용성 인디고 염액에 과산화수소 또는 산소를 주입하여 산화시킨 후 상등액을 제거하고 침전물을 분리하여 천연인디고 유기안료를 수득하는 단계(S40)와, 천연인디고 유기안료를 습식 밀링기에 투입하고 500 ~ 800nm 크기의 나노입자로 분쇄하는 단계(S50)와, 분쇄된 천연인디고 유기안료에 첨가물을 배합하여 DTP용 친환경잉크를 조성하는 단계(S60)를 포함하여 구성함에 따라 천연인디고 색소를 가공하여 DTP에 적합한 고품질의 친환경잉크로 제조하는 것이 특징이다.The present invention relates to a method for manufacturing an eco-friendly ink for digital textile printing using a natural indigo dye, comprising mixing sodium hydroxide with natural indigo powder and adjusting the pH to 10 to 12 to form a first composition (S10); A step of mixing sodium hyposulfite in the first composition and converting natural indigo into water-soluble to form a second composition (S20), and precipitating impurities of the second composition and separating the supernatant to obtain a water-soluble indigo salt solution (S30) After oxidation by injecting hydrogen peroxide or oxygen into a water-soluble indigo salt solution, the supernatant is removed and the precipitate is separated to obtain a natural indigo organic pigment (S40), and a natural indigo organic pigment is put into a wet milling machine and has a size of 500 to 800 nm According to the composition, including the step of pulverizing into nanoparticles of (S50) and the step (S60) of mixing the pulverized natural indigo organic pigment with additives to create an eco-friendly ink for DTP (S60), the natural indigo pigment is processed into high quality suitable for DTP It is characterized by manufacturing with eco-friendly ink of
Description
본 발명은 천연인디고 색소를 이용한 디지털 텍스타일 프린팅용 친환경잉크 제조방법에 관한 발명으로, 더욱 상세하게는 천연 염재로부터 추출한 인디고 색소를 가공하여 DTP에 적합한 친환경 유기안료로 제조하도록 구성함으로써 기존의 DTP용 인디고 잉크에 비해 고품질의 친환경잉크를 제공하도록 하는 기술에 관한 것이다.The present invention relates to a method for manufacturing an eco-friendly ink for digital textile printing using a natural indigo dye, and more particularly, by processing the indigo dye extracted from natural dyes to produce an eco-friendly organic pigment suitable for DTP, the existing indigo for DTP It relates to a technology to provide high-quality, eco-friendly ink compared to ink.
일반적으로, 디지털 텍스타일 프린팅(Digital textile printing, 이하 DTP)은 컴퓨터 및 DTP 소프트웨어를 이용해 원단을 전용 프린터에 넣고 잉크를 인쇄하는 방식으로 원하는 디자인 및 색감의 원단을 생산하는 기술이다.In general, digital textile printing (hereinafter referred to as DTP) is a technology for producing a fabric of a desired design and color by putting a fabric into a dedicated printer and printing ink using a computer and DTP software.
종래의 아날로그 염색 기술은 염료의 배합, 스크린 제작 등의 방식이 대부분 수작업에 의해 이루어지므로 일관된 품질 보장이 어려울 뿐만 아니라 원단의 증열처리 및 염료정착을 위한 반복적인 세척과정에서 각종 처리제 등 화학약품들이 대량 방출됨에 따른 심각한 환경오염 문제를 야기하게 된다.In the conventional analog dyeing technology, since most of the methods such as dye mixing and screen production are done manually, it is difficult to guarantee consistent quality, and in the repeated washing process for fabric vapor heat treatment and dye fixation, a large amount of chemicals such as various treatment agents are used. It causes serious environmental pollution problems due to the emission.
그에 비해, 디지털 텍스타일 프린팅은 종래 복잡한 염색 공정을 간편하고 신속하게 단축하고 환경오염 문제를 비교적 저감할 수 있는 등의 이점이 있어 다양한 분야에 널리 이용되고 있다.In contrast, digital textile printing is widely used in various fields because it has advantages such as being able to simply and quickly shorten the conventional complicated dyeing process and relatively reduce environmental pollution problems.
DTP는 크게 전처리 공정, 프린팅 공정, 및 후가공 공정을 거쳐 이루어진다. 예컨대, 한국등록특허 제 10 - 1502730 호에는 전처리용 코팅제를 출력용 원단의 표면에 도포하여 코팅하는 전처리 공정과, 전처리된 원단을 디지털 장치에 주입하고 염료를 분사하여 이미지를 인쇄하는 출력 공정과, 이미지가 출력된 원단을 처리하여 염료를 고착하고 미고착된 염료 및 잔여 이물질을 수세한 후 건조하는 후가공 공정을 포함하는 디지털 텍스타일 날염 방법을 구성한다.DTP is largely made through a pre-treatment process, a printing process, and a post-processing process. For example, in Korea Patent Registration No. 10 - 1502730, a pretreatment process of applying a pretreatment coating agent to the surface of a fabric for printing and coating, an output process of injecting the pretreated fabric into a digital device and spraying dye to print an image, It constitutes a digital textile printing method including a post-processing process of processing the printed fabric to fix the dye, washing the unfixed dye and residual foreign substances with water, and then drying it.
상기와 같은 디지털 텍스타일 프린팅에 사용되는 잉크는 대부분 화학염료를 주성분으로 하는바, 예컨대 한국등록특허 제 10 - 0949416 호에는 염소원자 또는 브롬원자, 및 벤조일기, 시아노에틸기, 알킬기, 페닐기를 포함하는 화학적 조성의 분산 염료로 이루어진 섬유 재료용 잉크젯 날염 잉크를 구성한다.Most of the inks used for digital textile printing as described above have chemical dyes as a main component. For example, Korean Patent Registration No. 10-0949416 discloses a chlorine atom or a bromine atom, and a benzoyl group, a cyanoethyl group, an alkyl group, and a phenyl group. It constitutes an inkjet printing ink for textile materials composed of disperse dyes of chemical composition.
한편, 인디고는 청색 염료인 쪽의 색소로서, 일반적으로 천연인디고 염료는 건조 쪽 잎을 물에 우려낸 후 건져낸 다음 생석회 가루를 넣고 저어준 후 파란 침전물을 수분과 적당한 온도로 발효시켜 염액을 제조한다. 천연인디고 염료는 그 물성이 디지털 프린팅에는 적합하지 않으므로 대부분 천연염색에 이용한다.On the other hand, indigo is a blue dye, and in general, natural indigo dye is prepared by soaking dried indigo leaves in water, draining them, adding quicklime powder, stirring, and fermenting the blue precipitate at an appropriate temperature with moisture to prepare a salt solution. Natural indigo dye is mostly used for natural dyeing because its properties are not suitable for digital printing.
예컨대, 한국등록특허 제 10 - 0264675 호에서와 같이 생쪽에 소석회를 첨가하여 쪽색소를 추출하고 동결건조하여 쪽색소 분말을 제조하는 단계와, 쪽색소 분말을 수용성으로 하기 위하여 알칼리제와 전분당류를 첨가하여 90℃에서 20분간 발효하는 단계를 포함하는 천연쪽색소의 제조방법을 구성한다.For example, as in Korea Patent No. 10 - 0264675, adding slaked lime to the raw meat to extract the indigo pigment and freeze-drying to prepare an indigo pigment powder, and adding an alkali agent and starch sugar to make the indigo pigment water-soluble to constitute a method for producing natural indigo dye including the step of fermenting at 90° C. for 20 minutes.
다른 예로서, 한국공개특허 제 10 - 2012 - 0095269 호에는 굴껍질을 구워 자연 분말화한 후 회가루를 걸러 횟가루를 회수하는 단계와, 수확한 쪽을 항아리에 담고 물을 채운 쪽잎이 누렇게 삭았을때 건져내고 우러난 쪽물에 횟가루를 투입하고 앙금을 회수하는 단계와, 쪽물을 우러낸 말린 쪽대와 콩대를 태워 만든 재에 뜨거운 물을 부어 잿물을 만드는 단계와, 앙금과 잿물을 항아리에 투입하여 쪽물을 짓는 단계와, 식혜와 막걸리와 발효식초를 준비하고 쪽물에 투입하는 단계와, 옷감을 염색하여 건조를 수차례 반복하는 단계를 포함하는 쪽의 전통 염색 방법을 구성한다.As another example, Korean Patent Application Laid-Open No. 10 - 2012 - 0095269 discloses a step of recovering raw sashimi powder by filtering ash powder after baking oyster shells to natural powder, and putting the harvested indigo plant in a jar and filling the water with indigo leaves to turn yellow. The step of removing the dirt and adding sashimi powder to the boiled indigo water and collecting the sediment; the step of pouring hot water into the ashes made by burning the dried indigo plant and soybean stem from soaking the indigo water to make lye; The traditional dyeing method comprises the steps of preparing sikhye, makgeolli, and fermented vinegar and adding it to the indigo water, and dyeing the fabric and repeating drying several times.
종래의 아날로그 염색 기술은 품질 및 생산성, 또한 환경오염 유발 등의 문제가 있으므로 디지털 텍스타일 프린팅 기술이 다양한 분야에 활용되고 있으나, DTP용 잉크는 대부분 화학염료로 이루어지므로 천연염색 분야에서는 적용이 쉽지 않은 문제점이 있다.Digital textile printing technology is used in various fields because the conventional analog dyeing technology has problems such as quality, productivity, and environmental pollution. There is this.
또한, 대표적인 청색 염료인 천연인디고 색소는 불용성이므로 발효 과정을 거처 수용성으로 환원하여 염료로 제조하게 되는바, 수용성 천연인디고 염료는 원단에 대한 흡착성이 현저히 낮을 뿐만 아니라 발현 가능한 색상의 종류가 제한적이고 염착성이 불안정한 단점이 있다.In addition, natural indigo dye, a representative blue dye, is insoluble, so it is reduced to water-soluble dye through a fermentation process and produced as a dye. This has the disadvantage of being unstable.
또한, 기존의 수용성 천연인디고 염료는 DTP용 프린터의 노즐을 통과하는 과정에서 염료가 산화하여 발색성을 저하하는 등의 문제를 초래하는 단점이 있다.In addition, the existing water-soluble natural indigo dye has a disadvantage in that the dye is oxidized in the process of passing through the nozzle of the DTP printer, causing problems such as lowering of color development.
이에 본 발명에서는 상술한 바와 같은 종래 기술의 문제점을 해결하기 위하여 발명한 것으로서,Accordingly, the present invention was invented to solve the problems of the prior art as described above,
천연인디고 분말에 수산화나트륨을 혼합하고 pH를 10 ~ 12로 조절하여 제1조성물을 조성하는 단계(S10)와,Mixing sodium hydroxide with natural indigo powder and adjusting the pH to 10 to 12 to form a first composition (S10);
상기 제1조성물에 차아황산나트륨을 혼합하고 천연인디고를 수용성으로 변환하여 제2조성물을 조성하는 단계(S20)와,mixing sodium hyposulfite with the first composition and converting natural indigo into water-soluble to form a second composition (S20);
상기 제2조성물의 불순물을 침전하고 상등액을 분리하여 수용성 인디고 염액을 수득하는 단계(S30)와,A step of precipitating the impurities of the second composition and separating the supernatant to obtain a water-soluble indigo salt solution (S30);
상기 수용성 인디고 염액에 과산화수소 또는 산소를 주입하여 산화시킨 후 상등액을 제거하고 침전물을 분리하여 천연인디고 유기안료를 수득하는 단계(S40)와,A step of oxidizing the water-soluble indigo salt solution by injecting hydrogen peroxide or oxygen, removing the supernatant and separating the precipitate to obtain a natural indigo organic pigment (S40);
상기 천연인디고 유기안료를 습식 밀링기에 투입하고 500 ~ 800nm 크기의 나노입자로 분쇄하는 단계(S50)와,Putting the natural indigo organic pigment into a wet milling machine and pulverizing it into nanoparticles having a size of 500 to 800 nm (S50);
상기 분쇄된 천연인디고 유기안료에 첨가물을 배합하여 DTP용 친환경잉크를 조성하는 단계(S60)로 이루어지고,It consists of a step (S60) of mixing an additive with the pulverized natural indigo organic pigment to create an eco-friendly ink for DTP,
상기 DTP용 친환경잉크를 조성하는 단계(S60)는,The step of composing the eco-friendly ink for DTP (S60),
천연인디고 유기안료 10 ~ 30중량부에, 첨가물로서 물 30 ~ 50중량부와, 계면활성제 10 ~ 30중량부와, 침전방지제 1 ~ 5중량부와, 보습제 10 ~ 20중량부와, 소포제 1 ~ 2중량부와, 안정제 3 ~ 6중량부와, 산도조절제 1 ~ 5중량부를 배합하여 잉크조성물을 조제하는 단계(S61)와,10 to 30 parts by weight of natural indigo organic pigment, 30 to 50 parts by weight of water as an additive, 10 to 30 parts by weight of surfactant, 1 to 5 parts by weight of a precipitation inhibitor, 10 to 20 parts by weight of a humectant, and 1 to antifoaming agent 2 parts by weight, 3 to 6 parts by weight of a stabilizer, and 1 to 5 parts by weight of an acidity regulator to prepare an ink composition (S61);
상기 잉크조성물을 800nm 이하 크기의 나노입자로 여과하는 단계(S62)를 포함하여 구성함으로써 천연인디고 색소를 가공하여 DTP에 적합한 고품질의 친환경잉크로 제조하도록 할 수 있는 목적 달성이 가능하다.By including the step (S62) of filtering the ink composition with nanoparticles having a size of 800 nm or less, it is possible to achieve the purpose of processing the natural indigo dye to produce high-quality, eco-friendly ink suitable for DTP.
본 발명은 천연 염재로부터 추출한 인디고 색소를 가공하여 DTP에 적합한 친환경 유기안료로 제조하도록 하는 효과가 있다.The present invention has the effect of processing the indigo pigment extracted from the natural dye material to produce an eco-friendly organic pigment suitable for DTP.
특히, 본 발명은 기존의 수용성 인디고 염료에 비해 원단에 대한 흡착성 및 발색성을 현저히 향상하는 천연인디고 잉크를 제조함으로써 DTP에 의한 천연염색 등 보다 다양한 분야에 적용하여 고품질의 DTP 제품을 제조하도록 하는 등의 이점이 있다.In particular, the present invention is applied to more diverse fields such as natural dyeing by DTP by manufacturing a natural indigo ink that significantly improves adsorption and color development to fabric compared to existing water-soluble indigo dyes to manufacture high-quality DTP products, etc. There is an advantage.
도 1은 본 발명에 따른 천연인디고 색소를 이용한 디지털 텍스타일 프린팅용 친환경잉크 제조방법의 개략적인 공정 흐름도.1 is a schematic process flow diagram of a method for manufacturing an eco-friendly ink for digital textile printing using natural indigo dye according to the present invention.
이하, 본 발명의 천연인디고 색소를 이용한 디지털 텍스타일 프린팅용 친환경잉크 제조방법의 바람직한 실시 예에 따른 구성과 작용을 첨부 도면을 참조하여 상세히 설명하면 다음과 같다. 하기의 설명에서 당해 기술분야의 통상의 기술자가 용이하게 구현할 수 있는 부분에 대한 구체적인 설명은 생략될 수 있다.Hereinafter, the configuration and operation according to a preferred embodiment of the method for manufacturing an eco-friendly ink for digital textile printing using a natural indigo dye of the present invention will be described in detail with reference to the accompanying drawings. In the following description, detailed descriptions of parts that can be easily implemented by those skilled in the art may be omitted.
아울러, 하기의 설명은 본 발명에 대하여 바람직한 실시 예를 들어 설명하는 것이므로 본 발명은 하기 실시 예에 의해 한정되는 것이 아니며 본 발명의 범주를 벗어나지 않는 범위 내에서 다양한 변형이 제공될 수 있음은 당연하다 할 것이다.In addition, since the following description is given by way of a preferred embodiment of the present invention, the present invention is not limited by the following examples, and it is natural that various modifications may be provided within the scope of the present invention. something to do.
도 1은 본 발명에 따른 천연인디고 색소를 이용한 디지털 텍스타일 프린팅용 친환경잉크 제조방법의 개략적인 공정 흐름도를 도시한 것이다.1 shows a schematic process flow diagram of a method for manufacturing an eco-friendly ink for digital textile printing using a natural indigo dye according to the present invention.
본 발명의 기술이 적용되는 천연인디고 색소를 이용한 디지털 텍스타일 프린팅용 친환경잉크 제조방법은 천연 염재로부터 추출한 인디고 색소를 가공하여 DTP에 적합한 친환경 유기안료로 제조함으로써 기존의 DTP용 인디고 잉크에 비해 고품질의 DTP용 친환경잉크를 제공하도록 하는 기술에 관한 것임을 주지한다.The eco-friendly ink manufacturing method for digital textile printing using the natural indigo dye to which the technology of the present invention is applied processes the indigo dye extracted from the natural dye material and manufactures it as an eco-friendly organic pigment suitable for DTP. It should be noted that it relates to a technology to provide an eco-friendly ink for use.
이를 위한 본 발명의 천연인디고 색소를 이용한 디지털 텍스타일 프린팅용 친환경잉크 제조방법은 제1조성물을 조성하는 단계(S10)와, 제2조성물을 조성하는 단계(S20)와, 수용성 인디고 염액을 수득하는 단계(S30)와, 천연인디고 유기안료를 수득하는 단계(S40)와, 나노입자로 분쇄하는 단계(S50)와, DTP용 친환경잉크를 조성하는 단계(S60)를 포함하여 이루어지며, 구체적으로는 하기와 같다.For this purpose, the method for producing an eco-friendly ink for digital textile printing using a natural indigo dye of the present invention includes the steps of preparing a first composition (S10), preparing a second composition (S20), and obtaining a water-soluble indigo salt solution (S30), a step of obtaining a natural indigo organic pigment (S40), a step of pulverizing into nanoparticles (S50), and a step of composing an eco-friendly ink for DTP (S60). Specifically, the following same as
상기 제1조성물을 조성하는 단계(S10)는 천연인디고 분말에 수산화나트륨을 혼합하고 pH를 10 ~ 12로 조절하여 제1조성물을 조성하는 단계(S10)이다.The step of composing the first composition (S10) is a step of composing the first composition by mixing sodium hydroxide with natural indigo powder and adjusting the pH to 10 to 12 (S10).
상기 제1조성물을 조성하는 단계(S10)를 천연인디고 분말을 알칼리 상태로 조절하기 위한 단계로서 천연인디고 분말을 수산화나트륨(NaOH) 수용액에 투입하고 수분간 방치하여 pH를 알칼리성으로 조절하도록 구성한다.The step of composing the first composition (S10) is a step for adjusting the natural indigo powder to an alkaline state, and the natural indigo powder is added to an aqueous sodium hydroxide (NaOH) solution and left for a few minutes to adjust the pH to alkaline.
상기 제2조성물을 조성하는 단계(S20)는 상기 제1조성물에 차아황산나트륨을 혼합하고 천연인디고를 수용성으로 변환하여 제2조성물을 조성하는 단계(S20)이다.The step of composing the second composition (S20) is a step (S20) of mixing sodium hyposulfite with the first composition and converting natural indigo into a water-soluble one to form a second composition (S20).
상기 제2조성물을 조성하는 단계(S20)는 알칼리성으로 조절된 상기 제1조성물에 환원제로서 차아황산나트륨(Na2S2O4)을 이용해 화학적으로 환원하기 위한 단계이다.The step of composing the second composition (S20) is a step for chemically reducing the first composition adjusted to alkali using sodium hyposulfite (Na 2 S 2 O 4 ) as a reducing agent.
불용성인 천연인디고를 염료로 사용하기 위해서는 알칼리 상태의 제1조성물을 환원하여 류코화합물인 알칼리염의 수용액 상태로 조성하여야지만 섬유에 흡수되어 염색이 이루어질 수 있다.In order to use insoluble natural indigo as a dye, the first composition in an alkali state must be reduced to form an aqueous solution of an alkali salt, which is a leuco compound, so that it can be absorbed into the fiber and dyed.
따라서, 상기 제2조성물을 조성하는 단계(S20)에서는 차아황산나트륨을 상기 제1조성물에 혼합하여 수용성으로 변환된 천연인디고로 이루어진 제2조성물을 조성하도록 구성한다.Therefore, in the step of composing the second composition (S20), sodium hyposulfite is mixed with the first composition to form a second composition made of natural indigo converted into water-soluble.
상기 수용성 인디고 염액을 수득하는 단계(S30)는 상기 제2조성물의 불순물을 침전하고 상등액을 분리하여 수용성 인디고 염액을 수득하는 단계(S30)이다.The step of obtaining the water-soluble indigo salt solution (S30) is a step (S30) of obtaining a water-soluble indigo salt solution by precipitating impurities of the second composition and separating the supernatant.
상기 제2조성물에는 상기 제1조성물을 조성하는 단계(S10)에서 투입된 수산화나트륨 및 각종 불순물이 함유되어 있는바, 상기 수용성 인디고 염액을 수득하는 단계(S30)에서는 제2조성물을 수분간 방치하여 해당 불순물을 침전한 후 상등액만을 분리하여 수용성 인디고 염액을 수득하도록 구성한다.The second composition contains sodium hydroxide and various impurities added in the step (S10) of composing the first composition, and in the step (S30) of obtaining the water-soluble indigo salt solution, the second composition is left for several minutes. After the impurities are precipitated, only the supernatant is separated to obtain a water-soluble indigo salt solution.
상기 천연인디고 유기안료를 수득하는 단계(S40)는 상기 수용성 인디고 염액에 과산화수소 또는 산소를 주입하여 산화시킨 후 상등액을 제거하고 침전물을 분리하여 천연인디고 유기안료를 수득하는 단계(S40)이다.The step of obtaining the natural indigo organic pigment (S40) is a step of oxidizing the water-soluble indigo salt solution by injecting hydrogen peroxide or oxygen, removing the supernatant and separating the precipitate to obtain a natural indigo organic pigment (S40).
상기 제1조성물을 조성하는 단계(S10) 및 제2조성물을 조성하는 단계(S20)에 의해 불용성인 천연인디고를 수용성으로 변환하여 섬유에 흡수 가능한 상태로 조성한 후에는 재차 비수용성(불용성)으로 변환하여야지만 섬유에 염착 및 발색이 이루어질 수 있다.By converting the insoluble natural indigo into water-soluble by the step of composing the first composition (S10) and the step of composing the second composition (S20), it is converted into a water-insoluble (insoluble) again after making it in a state that can be absorbed by the fiber However, dyeing and coloring can be achieved on the fibers.
따라서, 상기 천연인디고 유기안료를 수득하는 단계(S40)에서는 수용성 인디고 염액을 산화 과정을 통해 비수용성으로 변환하고 침전되는 염액을 수득하여 천연인디고 유기안료로 조성함으로써 발색도를 선명하게 하고 염착성을 향상하도록 구성한다.Therefore, in the step of obtaining the natural indigo organic pigment (S40), the water-soluble indigo salt solution is converted into a water-insoluble solution through an oxidation process, and a salt solution that is precipitated is obtained and formulated as a natural indigo organic pigment, thereby making the color development clear and improving the dyeing property. configure to do
상기 나노입자로 분쇄하는 단계(S50)는 상기 천연인디고 유기안료를 습식 밀링기에 투입하고 500 ~ 800nm 크기의 나노입자로 분쇄하는 단계(S50)이다.The step of pulverizing into nanoparticles (S50) is a step (S50) of adding the natural indigo organic pigment to a wet mill and pulverizing it into nanoparticles having a size of 500 to 800 nm.
DTP용 프린터의 노즐을 잉크가 통과하기 위해서는 나노입자 수준의 입도를 형성해야 하므로 상기 상기 나노입자로 분쇄하는 단계(S50)에서는 습식 밀링기를 이용해 천연인디고 유기안료 입자를 미세화하도록 구성한다.In order for the ink to pass through the nozzle of the DTP printer, the particle size of nanoparticles must be formed. Therefore, in the step (S50) of pulverizing the nanoparticles into the nanoparticles, the natural indigo organic pigment particles are refined using a wet milling machine.
상기 DTP용 친환경잉크를 조성하는 단계(S60)는 상기 분쇄된 천연인디고 유기안료에 첨가물을 배합하여 DTP용 친환경잉크를 조성하는 단계(S60)이다.The step of composing the eco-friendly ink for DTP (S60) is a step of composing the eco-friendly ink for DTP by mixing an additive with the pulverized natural indigo organic pigment (S60).
상기 DTP용 친환경잉크를 조성하는 단계(S60)는 잉크조성물을 조제하는 단계(S61)와, 나노입자로 여과하는 단계(S62)를 포함한다.The step of composing the eco-friendly ink for DTP (S60) includes the step of preparing the ink composition (S61) and the step of filtering with nanoparticles (S62).
상기 잉크조성물을 조제하는 단계(S61)는 천연인디고 유기안료 10 ~ 30중량부에, 첨가물로서 물 30 ~ 50중량부와, 계면활성제 10 ~ 30중량부와, 침전방지제 1 ~ 5중량부와, 보습제 10 ~ 20중량부와, 소포제 1 ~ 2중량부와, 안정제 3 ~ 6중량부와, 산도조절제 1 ~ 5중량부를 배합하여 조제하도록 구성한다.The step of preparing the ink composition (S61) includes 10 to 30 parts by weight of a natural indigo organic pigment, 30 to 50 parts by weight of water as an additive, 10 to 30 parts by weight of a surfactant, 1 to 5 parts by weight of a precipitation inhibitor, 10 to 20 parts by weight of a moisturizing agent, 1 to 2 parts by weight of an antifoaming agent, 3 to 6 parts by weight of a stabilizer, and 1 to 5 parts by weight of an acidity regulator are formulated to be prepared.
상기 첨가물은 DTP용 친환경잉크에 적합한 물성을 도출하기 위한 화학적 조성으로 이루어진다. 상기 침전방지제는 안료 성분의 침전을 방지하도록 작용하며, 상기 소포제는 DTP에 의한 인쇄 및 건조 중에 도막에 기포나 핀홀이 잔류하지 않도록 작용한다. 상기 산도조절제는 잉크의 pH를 조절하여 발색도를 극대화하도록 구성한다.The additive is made of a chemical composition to derive physical properties suitable for the eco-friendly ink for DTP. The anti-settling agent acts to prevent precipitation of the pigment component, and the anti-foaming agent acts to prevent bubbles or pinholes from remaining on the coating film during printing and drying by DTP. The acidity control agent is configured to maximize the color development by adjusting the pH of the ink.
상기 잉크조성물을 조제하는 단계(S61)에서는 상기 첨가물로서 실리콘계, 아크릴계, 우레탄계 고분자 중에서 선택된 증점제 1 ~ 3중량부를 추가로 배합하여 조성하도록 구성한다.In the step of preparing the ink composition (S61), as the additive, 1 to 3 parts by weight of a thickener selected from silicone-based, acrylic-based, and urethane-based polymers are additionally formulated to form the composition.
상기 증점제는 잉크의 점도 및 흡착성을 증대하여 안정화고 섬유에 잉크가 효과적으로 흡착하여 염색이 이루어지도록 투입한다. 상기 증점제의 첨가량이 상기 범위를 벗어날 경우 잉크의 흐름성 저하로 DTP 프린터용 잉크의 물성에 부적합하거나 섬유에 사용시 발색 또는 문양 표현이 불가능한 등의 문제를 야기할 수 있으므로 해당 범위를 준수한다.The thickener is injected so that the ink is stabilized by increasing the viscosity and adsorption property of the ink, and the ink is effectively adsorbed to the fibers to be dyed. If the added amount of the thickener is out of the above range, it may cause problems such as unsuitable properties of ink for DTP printers due to deterioration of ink flow, or impossible to develop color or pattern when used on textiles, so comply with the range.
상기 나노입자로 여과하는 단계(S62)는 상기 잉크조성물을 800nm 이하 크기의 나노입자로 여과하도록 구성한다.The filtering with the nanoparticles (S62) is configured to filter the ink composition with nanoparticles having a size of 800 nm or less.
상기 나노입자로 여과하는 단계(S62)는 상기 잉크조성물을 조제하는 단계(S61)에 배합된 첨가물에 의해 잉크의 물리적 특성이 변질된 잉크조성물을 나노필터를 이용해 여과하여 DTP용 잉크에 적합한 나노입자 수준의 입도로 여과함으로써 최종 친환경 잉크를 수득하도록 구성한다.In the step of filtering with nanoparticles (S62), the ink composition in which the physical properties of the ink has been altered by the additive formulated in the step (S61) of preparing the ink composition is filtered using a nano-filter to obtain nanoparticles suitable for DTP ink. Constructed to obtain the final green ink by filtration to a level of particle size.
전술한 바와 같은 본 발명에 따른 천연인디고 색소를 이용한 디지털 텍스타일 프린팅용 친환경잉크 제조방법에 의해 제조된 친환경잉크는 기존의 수용성 인디고 염료에 비해 원단에 대한 흡착성 및 발색성을 현저히 향상하여 고품질의 천연인디고 염색 제품을 제조할 수 있도록 한다.As described above, the eco-friendly ink produced by the eco-friendly ink manufacturing method for digital textile printing using the natural indigo dye according to the present invention has significantly improved adsorption and color development to the fabric compared to the existing water-soluble indigo dye, resulting in high-quality natural indigo dyeing. to be able to manufacture the product.
이상에서와 같은 본 발명에 따른 천연인디고 색소를 이용한 디지털 텍스타일 프린팅용 친환경잉크 제조방법은 천연인디고 색소를 가공하여 DTP에 적합한 친환경 유기안료로 제조하도록 함으로써 DTP에 의한 천연인디고 염색을 보다 용이하게 하는 등의 다양한 효과를 도출할 수 있다.As described above, the eco-friendly ink manufacturing method for digital textile printing using natural indigo dye according to the present invention makes natural indigo dyeing by DTP easier by processing the natural indigo dye to produce an eco-friendly organic pigment suitable for DTP, etc. of various effects can be derived.
S10: 제1조성물을 조성하는 단계
S20: 제2조성물을 조성하는 단계
S30: 수용성 인디고 염액을 수득하는 단계
S40: 천연인디고 유기안료를 수득하는 단계
S50: 나노입자로 분쇄하는 단계
S60: DTP용 친환경잉크를 조성하는 단계
S61: 잉크조성물을 조제하는 단계
S62: 나노입자로 여과하는 단계 S10: Step of composing a first composition
S20: step of composing a second composition
S30: obtaining a water-soluble indigo salt solution
S40: obtaining a natural indigo organic pigment
S50: pulverizing into nanoparticles
S60: Step of creating an eco-friendly ink for DTP
S61: preparing the ink composition
S62: filtration with nanoparticles
Claims (3)
상기 제1조성물에 차아황산나트륨을 혼합하고 천연인디고를 수용성으로 변환하여 제2조성물을 조성하는 단계(S20)와,
상기 제2조성물의 불순물을 침전하고 상등액을 분리하여 수용성 인디고 염액을 수득하는 단계(S30)와,
상기 수용성 인디고 염액에 과산화수소 또는 산소를 주입하여 산화시킨 후 상등액을 제거하고 침전물을 분리하여 천연인디고 유기안료를 수득하는 단계(S40)와,
상기 천연인디고 유기안료를 습식 밀링기에 투입하고 500 ~ 800nm 크기의 나노입자로 분쇄하는 단계(S50)와,
상기 분쇄된 천연인디고 유기안료에 첨가물을 배합하여 DTP용 친환경잉크를 조성하는 단계(S60)를 포함하는 것을 특징으로 하는 천연인디고 색소를 이용한 디지털 텍스타일 프린팅용 친환경잉크 제조방법.Mixing sodium hydroxide with natural indigo powder and adjusting the pH to 10 to 12 to form a first composition (S10);
mixing sodium hyposulfite with the first composition and converting natural indigo into water-soluble to form a second composition (S20);
A step of precipitating the impurities of the second composition and separating the supernatant to obtain a water-soluble indigo salt solution (S30);
A step of oxidizing the water-soluble indigo salt solution by injecting hydrogen peroxide or oxygen, removing the supernatant and separating the precipitate to obtain a natural indigo organic pigment (S40);
Putting the natural indigo organic pigment into a wet milling machine and pulverizing it into nanoparticles having a size of 500 to 800 nm (S50);
An eco-friendly ink manufacturing method for digital textile printing using natural indigo dye, characterized in that it comprises the step (S60) of composing an eco-friendly ink for DTP by mixing an additive with the pulverized natural indigo organic pigment.
상기 DTP용 친환경잉크를 조성하는 단계(S60)는,
천연인디고 유기안료 10 ~ 30중량부에, 첨가물로서 물 30 ~ 50중량부와, 계면활성제 10 ~ 30중량부와, 침전방지제 1 ~ 5중량부와, 보습제 10 ~ 20중량부와, 소포제 1 ~ 2중량부와, 안정제 3 ~ 6중량부와, 산도조절제 1 ~ 5중량부를 배합하여 잉크조성물을 조제하는 단계(S61)와,
상기 잉크조성물을 800nm 이하 크기의 나노입자로 여과하는 단계(S62)를 포함하는 것을 특징으로 하는 천연인디고 색소를 이용한 디지털 텍스타일 프린팅용 친환경잉크 제조방법.The method of claim 1,
The step of composing the eco-friendly ink for DTP (S60),
10 to 30 parts by weight of natural indigo organic pigment, 30 to 50 parts by weight of water as an additive, 10 to 30 parts by weight of a surfactant, 1 to 5 parts by weight of a precipitation inhibitor, 10 to 20 parts by weight of a moisturizing agent, and 1 to an antifoaming agent 2 parts by weight, 3 to 6 parts by weight of a stabilizer, and 1 to 5 parts by weight of an acidity regulator to prepare an ink composition (S61);
An eco-friendly ink manufacturing method for digital textile printing using natural indigo dye, characterized in that it comprises the step (S62) of filtering the ink composition with nanoparticles having a size of 800 nm or less.
상기 잉크조성물을 조제하는 단계(S61)에서는, 첨가물로서 실리콘계, 아크릴계, 우레탄계 고분자 중에서 선택된 증점제 1 ~ 3중량부를 추가로 배합하여 조성하는 특징으로 하는 천연인디고 색소를 이용한 디지털 텍스타일 프린팅용 친환경잉크 제조방법.3. The method of claim 2,
In the step (S61) of preparing the ink composition, as an additive, 1 to 3 parts by weight of a thickener selected from silicone-based, acrylic-based, and urethane-based polymers are additionally blended to form an eco-friendly ink manufacturing method for digital textile printing using natural indigo dye .
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