KR20230063403A - Manufacturing method of ink for digital textile printing - Google Patents
Manufacturing method of ink for digital textile printing Download PDFInfo
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- KR20230063403A KR20230063403A KR1020210148425A KR20210148425A KR20230063403A KR 20230063403 A KR20230063403 A KR 20230063403A KR 1020210148425 A KR1020210148425 A KR 1020210148425A KR 20210148425 A KR20210148425 A KR 20210148425A KR 20230063403 A KR20230063403 A KR 20230063403A
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- natural
- digital printing
- ink
- weight
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- 238000007639 printing Methods 0.000 title claims abstract description 112
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000004753 textile Substances 0.000 title description 4
- 239000000976 ink Substances 0.000 claims abstract description 77
- 229930182559 Natural dye Natural products 0.000 claims abstract description 51
- 239000000978 natural dye Substances 0.000 claims abstract description 51
- 239000000049 pigment Substances 0.000 claims abstract description 51
- 239000002562 thickening agent Substances 0.000 claims abstract description 48
- 229920002472 Starch Polymers 0.000 claims abstract description 42
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- 229910052700 potassium Inorganic materials 0.000 claims abstract description 16
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- BSQLQMLFTHJVKS-UHFFFAOYSA-N 2-chloro-1,3-benzothiazole Chemical group C1=CC=C2SC(Cl)=NC2=C1 BSQLQMLFTHJVKS-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- 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
-
- 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
- C09D11/30—Inkjet printing inks
- C09D11/32—Inkjet printing inks characterised by colouring agents
- C09D11/328—Inkjet printing inks characterised by colouring agents characterised by dyes
-
- 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
- C09D11/30—Inkjet printing inks
- C09D11/38—Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
-
- 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
Abstract
본 발명은 디지털 날염용 천연잉크 제조방법에 관한 발명으로, 복수의 천연염재를 각각 추출하여 디지털 프린팅용 기본 색상인 C, M, Y, K 색상을 발현하는 천연색소추출물을 수득하는 단계(S10)와, 천연색소추출물을 효소 처리하여 색소 이외 성분을 분리하고 고분자 응집제를 처리한 후 원심분리로 층분리하여 300 ~ 500nm 입자크기를 갖는 색소분획물을 수득하는 단계(S20)와, 색소분획물을 수득하는 단계(S20)에서 수득한 색소분획물과, 보조제를 배합하여 천연염료를 수득하는 단계(S30)와, 천연재료로부터 분리한 전분을 용매로 처리하여 디지털 날염용 천연점증제를 수득하는 단계(S40)와, 천연염료를 추출하는 단계(S30)에서 수득한 천연염료와, 상기 디지털 날염용 천연점증제를 수득하는 단계(S40)에서 수득한 천연점증제와, 첨가제를 배합하여 디지털 날염용 천연잉크를 수득하는 단계(S50)를 포함하여 구성함에 따라 디지털 날염에 사용 가능한 고품질의 친환경 천연잉크를 제조하는 것이 특징이다.The present invention relates to a method for manufacturing natural ink for digital printing, which includes the steps of extracting a plurality of natural dyes to obtain natural pigment extracts expressing C, M, Y, and K colors, which are basic colors for digital printing (S10) And, enzymatically treating the natural pigment extract to separate components other than the pigment, treating it with a polymer coagulant, and then separating the layers by centrifugation to obtain a pigment fraction having a particle size of 300 to 500 nm (S20); Obtaining a natural dye by combining the pigment fraction obtained in step (S20) with an auxiliary agent (S30), and treating starch separated from natural materials with a solvent to obtain a natural thickener for digital printing (S40) And, the natural dye obtained in the step of extracting the natural dye (S30), the natural thickener obtained in the step of obtaining the natural thickener for digital printing (S40), and additives are combined to obtain a natural ink for digital printing It is characterized by manufacturing high-quality, eco-friendly natural ink that can be used for digital printing by including the step of obtaining (S50).
Description
본 발명은 디지털 날염용 천연잉크 제조방법에 관한 발명으로, 더욱 상세하게는 천연염료 및 천연점증제를 이용해 디지털 날염에 적합한 나노 입자화된 물성의 친환경 잉크를 제조하도록 구성함으로써 종래 화학염료와 차별된 무공해 및 인체에 무해한 디지털 날염물을 생산하도록 하는 기술에 관한 것이다.The present invention relates to a method for manufacturing natural ink for digital printing, and more particularly, by using natural dyes and natural thickeners to manufacture eco-friendly ink with nanoparticled physical properties suitable for digital printing, which is differentiated from conventional chemical dyes. It relates to a technology that allows the production of digital printing materials that are non-polluting and harmless to the human body.
일반적으로, 디지털 날염(Digital textile printing)은 디지털 인쇄기술을 날염 기술에 접목한 융합기술로써 원단을 날염기에 넣고 컴퓨터 및 소프트웨어를 이용해 잉크를 인쇄함으로써 원하는 디자인 및 색감의 날염원단을 생산하도록 한다.In general, digital textile printing is a convergence technology that combines digital printing technology with printing technology to produce printed fabric with a desired design and color by putting fabric in a printing machine and printing ink using a computer and software.
종래의 아날로그 날염 기술은 염료 배합, 날염스크린 제작 등 대부분의 공정이 수작업에 의해 이루어지므로 일관된 품질 보장이 어렵고, 특히 날염원단의 증열처리 및 염료정착을 위한 반복적인 세척과정에서 각종 처리제 등 화학약품들이 대량 방출됨에 따른 환경오염 문제를 야기하게 된다.In the conventional analog printing technology, it is difficult to ensure consistent quality because most of the processes, such as dye formulation and printing screen production, are performed manually. It causes environmental pollution problems according to the large amount of discharge.
그에 비해, 디지털 날염은 종래와 같은 복잡한 날염 공정을 간편하고 신속하게 단축하고 환경오염 문제를 비교적 저감할 수 있는 등의 이점이 있어 최근에 그 활용범위가 크게 확대되고 있다.In contrast, digital printing has advantages such as being able to simply and quickly shorten the conventional complicated printing process and relatively reducing environmental pollution problems, and its application range has recently been greatly expanded.
디지털 날염은 크게 전처리, 인쇄, 후처리 공정에 의해 이루어지며 종래 공지된 기술을 참고하여 개략적인 구성을 살펴보면, 한국등록특허 제 10 - 1502730 호에는 전처리용 코팅제를 출력용 원단의 표면에 도포하여 코팅하는 전처리 공정과, 전처리된 원단을 디지털 날염기에 주입하고 염료를 분사하여 이미지를 프린트하는 출력 공정과, 이미지가 출력된 원단을 처리하여 염료를 고착하고 미고착된 염료 및 잔여 이물질을 수세한 후 건조하는 후처리 공정을 포함하는 디지털 날염 방법을 구성한다.Digital printing is largely made up of pre-processing, printing, and post-processing processes. Looking at the schematic configuration with reference to conventionally known technologies, Korean Patent No. 10 - 1502730 applies a coating agent for pretreatment to the surface of a fabric for output to coat A pre-processing process, an output process of injecting the pre-treated fabric into a digital printing machine and spraying dye to print an image, processing the image-printed fabric to fix the dye, washing the non-fixed dye and remaining foreign matter, and then drying It constitutes a digital printing method including a post-processing process.
한편, 종래 디지털 날염에 사용되는 잉크는 화학염료를 주성분으로 하는바, 예컨대 한국등록특허 제 10 - 0578668 호에는 모노클로로(1,3,5)트리아진 그룹, 디글로로(1,3,5)트리아진 그룹, 트리클로로(1,3,5)트리아진 그룹, 비닐설폰그룹, 설파토에틸 설폰 그룹, 아크릴 아마이드 그룹, 에틸렌이민 그룹, 아자이드그룹, 설폰에틸렌이민 그룹, 트리클로로피리미딘 그룹, 모노클로로디플루오로피리미딘 그룹, 클로로벤조티아졸 그룹, 디클로로피리다존 그룹, 디클로로피리다진 그룹, 디클로로퀴노잘린 그룹, 에폭시 그룹 또는 3-카르복시피리디니오트리아진 그룹으로부터 선택되는 1개 이상의 반응기를 가진 반응성 분산염료와, 분산염료를 용해하는 용제로서 반응분산성 염료에 대한 용해성이 1%이상이고 자체 점도가 0.1-30cP 인 유기용제를 함유하는 섬유날염용 잉크를 구성한다.On the other hand, ink used in conventional digital printing is mainly composed of chemical dyes. ) Triazine group, trichloro (1,3,5) triazine group, vinylsulfone group, sulfatoethyl sulfone group, acrylamide group, ethylenimine group, azide group, sulfoneethylenimine group, trichloropyrimidine group , a monochlorodifluoropyrimidine group, a chlorobenzothiazole group, a dichloropyridazone group, a dichloropyridazine group, a dichloroquinosaline group, an epoxy group, or one or more reactive groups selected from a 3-carboxypyridiniotriazine group. It constitutes an ink for textile printing containing a reactive disperse dye having , and an organic solvent having a solubility of 1% or more and a self-viscosity of 0.1-30 cP for the reactive dispersible dye as a solvent for dissolving the disperse dye.
다른 예로서, 한국공개특허 제 10 - 2021 - 0051224 호에는 직물표면에 금속염이 혼합된 수지 혼합액을 도포하는 단계와, 수지 혼합액이 도포된 직물을 건조하는 단계와, 수지 혼합액이 건조된 직물에 안료, 우레탄 수지, 1,2-알칸 디올을 포함하는 안료잉크를 디지털 날염기로 분사하여 직물표면에 이미지를 인쇄하는 단계를 포함하는 디지털 프린팅을 이용한 안료 날염방법을 구성한다.As another example, Korean Patent Publication No. 10 - 2021 - 0051224 discloses the step of applying a resin mixture solution in which a metal salt is mixed on the surface of a fabric, drying the fabric to which the resin mixture solution is applied, and the pigment mixture on the dried fabric , urethane resin and a pigment ink containing 1,2-alkane diol are sprayed with a digital printing machine to print an image on the surface of a fabric.
상기와 같은 종래 기술이 적용되는 디지털 날염용 잉크는 트리클로로, 염소, 브론산염 등을 포함하는 화학적 조성으로 이루어진 화학염료가 일반적으로 사용되고 있다.In the ink for digital printing to which the prior art as described above is applied, a chemical dye having a chemical composition including trichloro, chlorine, bromate, and the like is generally used.
이와 같은 디지털 날염에 사용되는 화학염료는 후처리 공정에서 미고착된 염료를 수세로 제거 시 화학염료의 방출에 따른 오염 발생이 야기되며, 섬유 소재 등에 디지털 날염한 제품을 사용하는 과정에서도 화학 잔여물이 미세하게 지속적으로 검출될 가능성을 배제할 수 없으므로 인체에도 유해한 영향을 미치게 되는 문제를 내포한다.Chemical dyes used in such digital printing cause contamination due to the release of chemical dyes when unfixed dyes are removed with water washing in the post-processing process, and chemical residues are also generated in the process of using digitally printed products such as textile materials. Since the possibility of continuously detecting this minutely cannot be ruled out, it poses a problem that has a harmful effect on the human body.
한편, 통상의 천연염료를 디지털 날염용 잉크로 사용할 경우 디지털 인쇄용 기본색상인 C, M, Y, K의 표준색을 구현하는 데 어려움이 있을 뿐만 아니라 천연염료 특유의 낮은 견뢰도 및 염착성, 번짐 현상 등이 발생하여 인쇄 품질을 현저히 저하시키므로 디지털 날염용 잉크로 제조시 화학적 합성 증점제를 첨가하여 사용하고 있는 실정이다.On the other hand, when normal natural dyes are used as ink for digital printing, it is difficult to implement the standard colors of C, M, Y, and K, which are the basic colors for digital printing, as well as low fastness, dyeability, and smearing phenomenon peculiar to natural dyes. occurs and significantly degrades the printing quality, so a chemically synthesized thickener is added and used when manufacturing ink for digital printing.
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,
복수의 천연염재를 각각 추출하여 디지털 프린팅용 기본 색상인 C, M, Y, K 색상을 발현하는 천연색소추출물을 수득하는 단계(S10)와,Extracting a plurality of natural dyes to obtain natural pigment extracts expressing C, M, Y, and K colors, which are basic colors for digital printing (S10);
상기 천연색소추출물을 효소 처리하여 색소 이외 성분을 분리하고 고분자 응집제를 처리한 후 원심분리로 층분리하여 300 ~ 500nm 입자크기를 갖는 색소분획물을 수득하는 단계(S20)와,Enzymatically treating the natural pigment extract to separate components other than pigment, treating with a polymer coagulant, and then separating the layers by centrifugation to obtain a pigment fraction having a particle size of 300 to 500 nm (S20);
상기 색소분획물을 수득하는 단계(S20)에서 수득한 색소분획물과, 보조제를 배합하여 천연염료를 수득하는 단계(S30)와,Obtaining a natural dye by combining the pigment fraction obtained in the step of obtaining the pigment fraction (S20) with an auxiliary agent (S30);
천연재료로부터 분리한 전분을 용매로 처리하여 디지털 날염용 천연점증제를 수득하는 단계(S40)와,Treating starch separated from natural materials with a solvent to obtain a natural thickener for digital printing (S40);
상기 천연염료를 추출하는 단계(S30)에서 수득한 천연염료와, 상기 디지털 날염용 천연점증제를 수득하는 단계(S40)에서 수득한 천연점증제와, 첨가제를 배합하여 디지털 날염용 천연잉크를 수득하는 단계(S50)를 포함하여 구성함으로써 디지털 날염에 사용 가능한 고품질의 친환경 천연잉크를 제조할 수 있는 목적 달성이 가능하다.Natural ink for digital printing is obtained by combining the natural dye obtained in the step of extracting the natural dye (S30), the natural thickener obtained in the step of obtaining the natural thickener for digital printing (S40), and additives. By including the step (S50) of doing so, it is possible to achieve the purpose of manufacturing high-quality, eco-friendly natural ink usable for digital printing.
본 발명은 종래 화학염료 및 첨가제로 제조되는 디지털 날염 잉크와 차별하여, 천연염료 및 천연점증제를 이용해 디지털 날염에 적합한 물성을 가지는 잉크 제조방법을 제공한다.The present invention provides an ink manufacturing method having physical properties suitable for digital printing using natural dyes and natural thickeners, different from conventional digital printing inks manufactured with chemical dyes and additives.
따라서, 본 발명은 종래의 디지털 날염에 사용되는 화학염료의 유해성 및 그에 따른 작업환경의 오염, 사용상의 위험성 문제를 배제하고 친환경적인 이점을 가지는 디지털 날염용 천연잉크를 제공하는 효과가 있다.Therefore, the present invention has the effect of providing a natural ink for digital printing that has eco-friendly advantages by excluding the harmfulness of chemical dyes used in conventional digital printing, contamination of the working environment, and hazards in use.
특히, 본 발명은 생분해성 및 무독성, 저비용으로 우수한 물리 화학적 성질을 갖는 식물의 주요 탄소화물 보전 물질인 전분을 함유하는 천연점증제로 이용함으로써 높은 견뢰도 및 염착성, 발색성을 가지는 나노 잉크를 제조하도록 하는 이점이 있다.In particular, the present invention is biodegradable, non-toxic, low-cost, and has the advantage of preparing nano-ink having high fastness, dyeability, and color development by using it as a natural thickener containing starch, which is a major carbide preservation material of plants having excellent physical and chemical properties. there is.
따라서, 본 발명은 디지털 프린팅용 기본색상인 C, M, Y, K의 표준색을 안정적으로 구현할 수 있으므로, 종래 화학염료로 이루어진 DTP용 잉크를 대체하여 기존 사용방식 그대로 사용할 수 있는 디지털 날염용 천연잉크를 제조하도록 하는 효과가 있다.Therefore, since the present invention can stably implement the standard colors of C, M, Y, and K, which are the basic colors for digital printing, it is a natural ink for digital printing that can be used as it is in the existing method by replacing the ink for DTP made of conventional chemical dyes. It has the effect of producing a.
도 1은 본 발명에 따른 디지털 날염용 천연잉크 제조방법의 개략적인 공정 흐름도.
도 2는 본 발명에 따른 디지털 날염용 천연잉크 제조방법에 따라서 제조한 천연잉크를 이용해 디지털 프린팅을 실시한 원단 예시 이미지.1 is a schematic process flow diagram of a method for manufacturing natural ink for digital printing according to the present invention.
2 is an example image of a fabric subjected to digital printing using natural ink manufactured according to the method for manufacturing natural ink for digital printing according to the present invention.
이하, 본 발명의 디지털 날염용 천연잉크 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. 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.Hereinafter, the configuration and operation according to a preferred embodiment of the natural ink manufacturing method for digital printing 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. In addition, since the following description describes the present invention with respect to preferred embodiments, the present invention is not limited by the following examples, and it is natural that various modifications may be provided within a range that does not depart from the scope of the present invention. something to do.
도 1은 본 발명에 따른 디지털 날염용 천연잉크 제조방법의 개략적인 공정 흐름도이고, 도 2는 본 발명에 따른 디지털 날염용 천연잉크 제조방법에 따라서 제조한 천연잉크를 이용해 디지털 프린팅을 실시한 원단 예시 이미지를 도시한 것이다.1 is a schematic process flow diagram of a method for manufacturing natural ink for digital printing according to the present invention, and FIG. 2 is an example image of a fabric subjected to digital printing using natural ink manufactured according to the method for manufacturing natural ink for digital printing according to the present invention. is shown.
본 발명의 기술이 적용되는 디지털 날염용 천연잉크 제조방법은 천연염료 및 천연점증제를 이용해 디지털 날염에 적합한 나노 입자화된 물성의 친환경 잉크를 제조하도록 구성하는 기술에 관한 것임을 주지한다.It should be noted that the method for manufacturing natural ink for digital printing to which the technology of the present invention is applied relates to a technique for manufacturing eco-friendly ink with nanoparticled physical properties suitable for digital printing using natural dyes and natural thickeners.
이를 위한 본 발명의 디지털 날염용 천연잉크 제조방법은 천연색소추출물을 수득하는 단계(S10)와, 색소분획물을 수득하는 단계(S20)와, 천연염료를 수득하는 단계(S30)와, 디지털 날염용 천연점증제를 수득하는 단계(S40)와, 디지털 날염용 천연잉크를 수득하는 단계(S50)를 포함하여 이루어지며, 구체적으로는 하기와 같다.To this end, the method for producing natural ink for digital printing of the present invention comprises the steps of obtaining a natural pigment extract (S10), obtaining a pigment fraction (S20), obtaining a natural dye (S30), and It is made by including the step of obtaining a natural thickener (S40) and the step of obtaining a natural ink for digital printing (S50), specifically as follows.
상기 천연색소추출물을 수득하는 단계(S10)는 복수의 천연염재를 각각 추출하여 디지털 프린팅용 기본 색상인 C, M, Y, K 색상을 발현하는 천연색소추출물을 수득한다.In the step of obtaining the natural pigment extract (S10), a plurality of natural dyes are extracted respectively to obtain natural pigment extracts expressing C, M, Y, and K colors, which are basic colors for digital printing.
천연염재는 식물성, 동물성, 광물성 천연물 중에서 염료 성분을 가진 재료이다. 본 발명에서는 디지털 프린팅용 기본 색상인 C, M, Y, K 색상에 가까운 염료 성분을 가진 천연염재를 사용하며, 예컨대 Cyan 색상 천연염재로 인디고, 치자청, 누리장나무, 쥐똥나무가 있으며, Magenta 색상 천연염재로 코치닐, 홍화, 꼭두서니, 자초, 히비스커스가 있으며, Yellow 색상 천연염재로 금잔화, 치자, 강황, 울금, 황련, 메리골드가 있으며, Black 색상 천연염재로 참나무 숯, 대나무 숯, 흑미, 가시나무가 있는바, 이들 천연염재들 중에서 선택하여 사용한다.Natural dyes are materials with dye components among vegetable, animal, and mineral natural products. In the present invention, natural dyes with dye components close to C, M, Y, and K colors, which are the basic colors for digital printing, are used. Natural dyeing materials include cochineal, safflower, madder, perilla, and hibiscus. Yellow natural dyeing materials include marigold, gardenia, turmeric, turmeric, barberry, and marigold. Black natural dyeing materials include oak charcoal, bamboo charcoal, black rice, and thorns. Since there is wood, select and use among these natural dyes.
각 색상별로 선택한 천연염재의 종류에 따라서 열수추출, 용매추출, 여과추출, 환류추출 중에서 선택한 추출법으로 추출하여 C, M, Y, K 각각의 천연색소추출물을 수득한다. 열수추출, 용매추출, 여과추출, 환류추출 방식은 공지된 기술을 적용하면 될 것이므로 구체적인 설명은 생략한다.Depending on the type of natural dye selected for each color, extraction is performed by an extraction method selected from hot water extraction, solvent extraction, filtration extraction, and reflux extraction to obtain natural pigment extracts of C, M, Y, and K, respectively. Hot water extraction, solvent extraction, filtration extraction, and reflux extraction methods can be performed by applying known techniques, so detailed descriptions will be omitted.
상기 색소분획물을 수득하는 단계(S20)는 상기 천연색소추출물을 효소 처리하여 색소 이외 성분을 분리하고 고분자 응집제를 처리한 후 원심분리로 층분리하여 300 ~ 500nm 입자크기를 갖는 색소분획물을 수득한다.In the step of obtaining the pigment fraction (S20), the natural pigment extract is enzymatically treated to separate components other than the pigment, treated with a polymer coagulant, and separated into layers by centrifugation to obtain a pigment fraction having a particle size of 300 to 500 nm.
본 발명에서 사용하는 천연염재에 함유된 염료성분은 색소 배당체의 형태로 존재하며 산, 알칼리, 또는 단백질 분해 효소 등에 의해 가수분해되어 당류 등 색소 이외 성분과 분리된다.The dye component contained in the natural dye used in the present invention exists in the form of a dye glycoside and is hydrolyzed by an acid, alkali, or proteolytic enzyme to separate from components other than dyes such as sugars.
상기 색소분획물을 수득하는 단계(S20)에서는 C, M, Y, K 각각의 천연색소추출물을 색소 배당체와 반응하는 효소로 처리하여 색소 이외 성분을 분리한다. 예컨대, Cyan 인디고는 glucose 분해 효소를 처리하여 섬유소 조직 및 기타 단백질, 지방 성분을 가수분해한다. Magenta 홍화는 다색성을 가지므로 유기용매로 필요한 적색소를 층분리한 후 amylase, protease 계열의 효소를 처리하여 가수분해한다. Yellow 치자는 단색성을 가지므로 cellulase나 hemicellulase 계열의 효소를 처리하여 가수분해한다.In the step of obtaining the pigment fraction (S20), each of the natural pigment extracts of C, M, Y, and K is treated with an enzyme that reacts with the pigment glycoside to separate components other than the pigment. For example, cyan indigo is treated with glucose degrading enzyme to hydrolyze fibrous tissue and other protein and fat components. Since magenta safflower has polychromaticity, it is hydrolyzed by treating amylase and protease-type enzymes after layer separation of necessary red pigment with an organic solvent. Yellow gardenia has a monochromatic color, so it is hydrolyzed by treatment with cellulase or hemicellulase-type enzymes.
상기 색소분획물을 수득하는 단계(S20)에서는 상기와 같이 효소 분해된 분해물에 고분자 응집제를 처리하여 색소입자를 응집시킨 후, 원심분리하여 고순도의 C, M, Y, K 색상별 색소분획물을 수득하도록 구성한다.In the step of obtaining the pigment fraction (S20), the enzyme-digested decomposition product is treated with a polymer coagulant to coagulate the pigment particles, and then centrifuged to obtain high-purity pigment fractions for each C, M, Y, and K color. make up
상기 천연염료를 수득하는 단계(S30)는 상기 색소분획물을 수득하는 단계(S20)에서 수득한 색소분획물과, 보조제를 배합하여 천연염료를 수득한다.In the step of obtaining the natural dye (S30), the natural dye is obtained by combining the pigment fraction obtained in the step of obtaining the pigment fraction (S20) with an auxiliary agent.
상기 천연염료를 수득하는 단계(S30)에서는, C, M, Y, K 색상별 색소분획물 각각에 보조제로서 증류수 57 ~ 63 중량부와, 철분제거제 1 ~ 6 중량부와, 수산화칼륨 2 ~ 8 중량부와, 분산제 13 ~ 21 중량부와, 소포제 1 ~ 4 중량부를 혼합하여 천연염료조성물을 형성한다.In the step of obtaining the natural dye (S30), 57 to 63 parts by weight of distilled water, 1 to 6 parts by weight of an iron remover, and 2 to 8 parts by weight of potassium hydroxide as adjuvants to each of the pigment fractions for each color of C, M, Y, and K A natural dye composition is formed by mixing 13 to 21 parts by weight of a dispersant and 1 to 4 parts by weight of an antifoaming agent.
상기 천연염료를 수득하는 단계(S30)에서 색소분획물 및 보조제는 색상별로 상기 범위 내에서 적정 배합 비율에 따라서 혼합한다. 상기 보조제는 천연염료의 pH를 중성 내지 알칼리성으로 조정하고 물성을 확보하도록 사용한다.In the step of obtaining the natural dye (S30), the pigment fraction and the adjuvant are mixed according to an appropriate mixing ratio within the above range for each color. The adjuvant is used to adjust the pH of the natural dye to neutral to alkaline and to secure physical properties.
상기 혼합된 천연염료조성물은 1 ~ 400nm 입자크기로 습식 분쇄하여 천연염료를 수득하도록 이루어진다.The mixed natural dye composition is wet-milled to a particle size of 1 to 400 nm to obtain a natural dye.
상기 천연염료조성물은 습식 분쇄기에 0.1 ~ 0.5mm 입경의 지르코니아 볼과 증류수를 함께 투입하고 상온에서 5시간 동안 회전 교반하여 분쇄한다. 분쇄된 천연염료는 1 ~ 400nm 범위의 나노입자로 이루어지되, 입도 분포가 100 ~ 300nm 급이 80% 이상으로 이루어지도록 하여 디지털 날염 프린터의 노즐을 통과 가능한 수준으로 형성되도록 구성한다.The natural dye composition is pulverized by putting zirconia balls having a particle size of 0.1 to 0.5 mm and distilled water together into a wet grinder, and stirring at room temperature for 5 hours. The pulverized natural dye is composed of nanoparticles in the range of 1 to 400 nm, but the particle size distribution is made to be more than 80% in the 100 to 300 nm class so that it is formed to a level that can pass through the nozzle of the digital printing printer.
상기 디지털 날염용 천연점증제를 수득하는 단계(S40)는 천연재료로부터 분리한 전분을 용매로 처리하여 디지털 날염용 천연점증제를 수득한다.In the step of obtaining the natural thickener for digital printing (S40), the natural thickener for digital printing is obtained by treating starch separated from natural materials with a solvent.
상기 디지털 날염용 천연점증제를 수득하는 단계(S40)에서는, 감자전분, 옥수수전분, 고구마전분으로 이루어진 군으로부터 선택된 하나, 또는 감자전분에 상기 전분 중 하나를 혼합한 혼합전분을 사용한다.In the step of obtaining the natural thickener for digital printing (S40), one selected from the group consisting of potato starch, corn starch, and sweet potato starch, or mixed starch obtained by mixing one of the above starches with potato starch is used.
상기 혼합전분은, 감자전분과 타 전분의 비율을 1 : 0.8~1.2 중량비로 혼합하여 형성한다.The mixed starch is formed by mixing potato starch and other starches at a weight ratio of 1: 0.8 to 1.2.
본 발명에서 천연점증제의 성분으로 사용하는 상기 감자전분은 타 전분에 비해 동일 농도에서 점도가 매우 높고 아밀로오스를 함유하고 있으면서 호화액이 투명하며 노화(상온에서 재결정화)가 잘 일어나지 않는다. 이는 감자전분의 입자 크기와 아밀로오스의 분자량이 다른 전분들에 비해 크고 전분입자에 공유 결합되어 있는 인산기가 음전하를 가지는 특성이 기인한다.The potato starch used as a component of the natural thickener in the present invention has a very high viscosity at the same concentration compared to other starches, contains amylose, has a transparent gelatinization solution, and does not easily undergo aging (recrystallization at room temperature). This is due to the fact that the particle size of potato starch and the molecular weight of amylose are larger than those of other starches, and the phosphate group covalently bound to starch particles has a negative charge.
상기 디지털 날염용 천연점증제를 수득하는 단계(S40)에 사용되는 전분은 후술하게 될 디지털 날염용 천연잉크를 수득하는 단계(S50)에서 천연잉크의 점도 및 흡착성을 증대하여 안정화하고 유해 화학물질의 저감과 견뢰도 및 염착성을 향상하도록 작용한다.The starch used in the step of obtaining the natural thickener for digital printing (S40) is stabilized by increasing the viscosity and adsorption of the natural ink in the step of obtaining natural ink for digital printing (S50), which will be described later, and prevents harmful chemicals. It acts to reduce and improve fastness and dyeability.
일반적으로 전분은 클로로필을 함유하는 식물체가 광합성을 하는 과정에서 무기질인 이산화탄소와 물로부터 유기물인 글루코스를 만들고, 이를 저장하기 위해 고분자로 합성하여 입자형을 이루는 저장 탄수화물의 일종으로, 원료 식물에 따라 과립의 모양, 크기 구조 및 이화학적 특성이 상이하다.In general, starch is a type of storage carbohydrate in which a plant containing chlorophyll produces glucose, an organic substance, from carbon dioxide and water, which is an inorganic substance, in the process of photosynthesis, and synthesizes it into a polymer to form a granular form, depending on the raw material plant. are different in shape, size, structure and physicochemical properties.
이와 같은 전분은 식물체 내에서 전분입자의 형태로 존재하는바, 결정영역과 무정형영역을 동시에 가지는 부분 결정 중합체이며, 결정영역에서는 분자들이 수소결합을 통해서 강하게 결합되어 있으므로 입자 막이 존재하지 않더라도 일정한 형태를 유지하고 있다. 전분입자의 형태 및 크기는 원료 식물에 차이가 있으며, 예컨대 쌀, 밀, 옥수수와 같은 곡류에서 얻은 전분입자는 약 2 ~ 10㎛이고, 감자, 고구마 등의 근경류에서 얻어지는 전분입자는 약 5 ~ 150㎛ 크기를 갖는다.Such starch exists in the form of starch particles in the plant body, and is a partially crystalline polymer having both a crystalline region and an amorphous region. In the crystalline region, molecules are strongly bonded through hydrogen bonds, so that even if a particle film does not exist, a certain form is obtained. are maintaining The shape and size of starch particles differ depending on the source plant. For example, starch particles obtained from grains such as rice, wheat, and corn are about 2 to 10 μm, and starch particles obtained from rhizomes such as potatoes and sweet potatoes are about 5 to 10 μm. It has a size of 150 μm.
본 발명에 따른 상기 디지털 날염용 천연점증제를 수득하는 단계(S40)에서는 상술한 바와 같은 천연 전분과 물을 1 : 1~4 중량비로 혼합한 후, 10 ~ 50분 동안 70 ~ 100℃에서 열처리하면서 교반하여 디지털 날염에 사용 가능한 천연점증제를 수득하도록 구성한다.In the step of obtaining the natural thickener for digital printing according to the present invention (S40), natural starch and water as described above are mixed in a weight ratio of 1: 1 to 4, and then heat treated at 70 to 100 ° C. for 10 to 50 minutes. While stirring, it is configured to obtain a natural thickener usable for digital printing.
상기 물은 전분 입자 안에서 가소제(palsticizer)로 작용하여 전분 사슬간의 거리를 떨어뜨리고, 내부 수소결합을 파괴한다. 상기 디지털 날염용 천연점증제를 수득하는 단계(S40)에서의 수분열처리는 전분 원료와 전분 입자의 크기에 따라 결과물의 물성이 달라지는바, 감자전분과 같이 아밀로펙틴 함량이 높은 전분은 a-1,6결합 근처의 입체 장애가 a-1,4결합에 비해 약하므로 수분열처리에 더욱 민감하게 반응한다. 본 단계에서는 수분열처리를 통해 전분 입자의 결정영역과 무정형영역을 변화시키고, 이로 인해 전분의 팽윤력과 용해도를 감소하여 열과 전단 안정성을 향상하고 팽윤 및 아밀로스의 용출을 억제하도록 구성한다.The water acts as a plasticizer in the starch particles, reducing the distance between starch chains and breaking internal hydrogen bonds. In the water heat treatment in the step of obtaining the natural thickener for digital printing (S40), the physical properties of the resulting product vary depending on the starch raw material and the size of the starch particles. Since the nearby steric hindrance is weaker than that of the a-1,4 bond, it reacts more sensitively to water heat treatment. In this step, the crystalline region and the amorphous region of the starch particles are changed through water heat treatment, thereby reducing the swelling power and solubility of starch to improve heat and shear stability and suppress swelling and amylose elution.
한편, 전분은 분자간 수소결합에 의해 상온에서는 물에 용해되지 않는바, 상기 디지털 날염용 천연점증제를 수득하는 단계(S40)에서는 전분에 물을 가하고 열처리하여 전분입자가 팽윤을 일으키면서 점도가 높은 투명 또는 유백색의 콜로이드 용액을 형성하고, 열처리를 상기 온도 및 시간 범위에서 지속함으로써 결정영역의 구조를 유지해온 수소결합을 파괴하고 아밀로스가 용출되면서 물이 전분 입자로 더 많이 흡수되는 호화가 이루어지도록 하여 점도를 상승하도록 구성한다.On the other hand, since starch is not soluble in water at room temperature due to intermolecular hydrogen bonds, in the step of obtaining a natural thickener for digital printing (S40), water is added to starch and heat treated to cause swelling of starch particles and high viscosity By forming a transparent or milky white colloidal solution and continuing the heat treatment at the above temperature and time range, hydrogen bonds that have maintained the structure of the crystalline region are destroyed, and gelatinization in which more water is absorbed into the starch particles as amylose is eluted is achieved. It is configured to increase the viscosity.
따라서, 상기 디지털 날염용 천연점증제를 수득하는 단계(S40)에서 전분에 대한 물의 혼합 비율을 상기 범위 미만으로 조성할 경우 열처리 과정에서 제한된 수분량으로 인해 물분자의 운동이 느려져 전분의 결정질 영역이 분해되지 않고 호화가 정상적으로 이루어질 수 없다. 상기 범위를 초과할 경우 점증제 내에 전분 분포가 불균등하게 형성되어 물성을 확보할 수 없게 된다. Therefore, in the step of obtaining the natural thickener for digital printing (S40), when the mixing ratio of water to starch is less than the above range, the movement of water molecules slows down due to the limited amount of moisture in the heat treatment process, and the crystalline region of starch is decomposed. Otherwise, luxury cannot be achieved normally. If the above range is exceeded, the distribution of starch in the thickener is unevenly formed, making it impossible to secure physical properties.
또한, 상기 디지털 날염용 천연점증제를 수득하는 단계(S40)에서 열처리 온도가 상기 범위보다 낮을 경우에도 호화가 이루어질 수 없으므로 상기 범위 내에서 처리가 이루어지도록 구성한다.In addition, in the step of obtaining the natural thickener for digital printing (S40), gelatinization cannot be achieved even when the heat treatment temperature is lower than the above range, so the treatment is performed within the above range.
상기 디지털 날염용 천연잉크를 수득하는 단계(S50)는, 상기 천연염료를 추출하는 단계(S30)에서 수득한 천연염료와, 상기 디지털 날염용 천연점증제를 수득하는 단계(S40)에서 수득한 천연점증제와, 첨가제를 배합하여 디지털 날염용 천연잉크를 최종 완성한다.In the step of obtaining the natural ink for digital printing (S50), the natural dye obtained in the step of extracting the natural dye (S30) and the natural thickener for digital printing are obtained in the step (S40). Natural ink for digital printing is finally completed by mixing thickeners and additives.
상기 디지털 날염용 천연잉크를 수득하는 단계(S50)에서는, 천연염료 10 ~ 50 중량부와, 천연점증제 10 ~ 30 중량부와, 증류수 40 ~ 80 중량부와, 첨가제로서 계면활성제 10 ~ 30 중량부와, 소포제 2 ~ 15 중량부와, 5 ~ 10 보습제와, 안정제 1 ~ 20 중량부와, 침전방지제 5 ~ 20 중량부와, 산도조절제 5 ~ 10 중량부를 혼합하여 천연잉크조성물을 형성한다.In the step of obtaining the natural ink for digital printing (S50), 10 to 50 parts by weight of a natural dye, 10 to 30 parts by weight of a natural thickener, 40 to 80 parts by weight of distilled water, and 10 to 30 parts by weight of a surfactant as an additive A natural ink composition is formed by mixing 2 to 15 parts by weight of an antifoaming agent, 5 to 10 parts by weight of a humectant, 1 to 20 parts by weight of a stabilizer, 5 to 20 parts by weight of an anti-settling agent, and 5 to 10 parts by weight of an acidity regulator.
상기 디지털 날염용 천연잉크를 수득하는 단계(S50)에서 상기 천연점증제는 전분 성분에 의해 디지털 날염용 천연잉크의 안정도, 내구성 및 염색 견뢰도를 현저히 증진하고 염료 입자의 번짐 혹은 뭉침, 침전물 생성에 의한 프린터 노즐의 손상이나 인쇄 품질 저하와 같은 문제를 방지하도록 작용하는 바, 이는 천연점증제에 함유된 전분 성분이 비결정영역으로 분산되어 분자 내 수소결합을 해리시켜 섬유를 팽윤시킴에 따라 섬유 분자의 비결정영역에서 공간의 크기를 증가시키고 염료가 섬유 내부로 확산될 수 있도록 작용하는 점에 기인한다.In the step of obtaining the natural ink for digital printing (S50), the natural thickener significantly improves the stability, durability and color fastness of the natural ink for digital printing by the starch component, and spreads or agglomerates of dye particles, It acts to prevent problems such as damage to the printer nozzle or deterioration of printing quality. This is because the starch component contained in the natural thickener is dispersed into the amorphous region to dissociate the hydrogen bonds in the molecule and swell the fiber, resulting in amorphous fiber molecules. This is due to the fact that it increases the size of the space in the region and acts to allow the dye to diffuse into the fiber.
상기 천연점증제의 함량이 상기 범위를 벗어날 경우 잉크의 흐름성 저하로 디지털 날염용 잉크 물성에 부적합하게 되고, 잉크의 흡수 및 흡착력이 종이 등에 비해 비교적 낮은 섬유에 사용 시 문양 표현이 불가능한 등의 문제를 야기할 수 있다.When the content of the natural thickener is out of the above range, the flowability of the ink is lowered and the physical properties of the ink for digital printing become unsuitable, and when used for fibers having relatively low absorption and adsorption power of the ink compared to paper, problems such as impossibility of expressing patterns can cause
상기 소포제는 인쇄 및 건조 과정에서 잉크 도막에 발생할 수 있는 기포나 핀홀이 잔존하여 인쇄 품질을 저하시키는 것을 방지하도록 첨가한다.The antifoaming agent is added to prevent deterioration of print quality due to remaining bubbles or pinholes that may occur in the ink film during printing and drying.
상기 침강방지제는 장기 사용시 생성될 수 있는 응집물이나 침전물의 생성을 억제하고 잉크의 흐름성을 개선하도록 첨가한다.The anti-settling agent is added to suppress the formation of agglomerates or precipitates that may be formed during long-term use and to improve the flowability of the ink.
상기 산도조절제는 수산화나트륨 등 산, 알칼리제를 이용해 잉크의 pH를 조절한다.The acidity regulator adjusts the pH of the ink using an acid or an alkali agent such as sodium hydroxide.
상기 디지털 날염용 천연잉크를 수득하는 단계(S50)에서는 상기 혼합된 천연잉크조성물을 1㎛ 이하 입자크기로 여과하여 디지털 날염용 천연잉크를 수득하도록 이루어진다. 여과는 예컨대, 탄소나노튜브, 나노섬유 등으로 이루어진 나노필터를 통해 상기 천연잉크를 반복 여과하여 디지털 날염에 사용 가능한 입도로 나노화된 최종 천연잉크를 수득한다.In the step of obtaining the natural ink for digital printing (S50), the natural ink for digital printing is obtained by filtering the mixed natural ink composition to a particle size of 1 μm or less. In the filtration, the natural ink is repeatedly filtered through a nanofilter made of, for example, carbon nanotubes, nanofibers, etc. to obtain the final natural ink nanonized to a particle size usable for digital printing.
이하에서는 전술한 바와 같은 구성으로 이루어지는 본 발명을 포함하는 실시 예를 구성하고 그에 따른 효과에 대해서 면밀하게 파악하고자 한다.Hereinafter, an embodiment including the present invention composed of the above-described configuration will be configured and the effect thereof will be closely grasped.
<실시 예 1><Example 1>
본 발명의 천연색소추출물을 수득하는 단계 내지 천연염료를 수득하는 단계(S10~S30)에 의해 C, M, Y, K 색상 각각의 천연염료를 수득한다.Through the step of obtaining the natural pigment extract of the present invention to the step of obtaining natural dyes (S10 to S30), natural dyes of C, M, Y, and K colors are obtained.
Cyan 색상은 인디고(쪽), Magenta 색상은 코치닐, Yellow 색상은 금잔화, Black 색상은 참나무 숯을 각각 열수추출, 용매추출, 여과추출, 환류추출 중에서 선택한 추출법에 의해 추출하여 각각의 천연색소추출물을 수득한다.Indigo (indigo) for cyan color, cochineal for magenta color, marigold for yellow color, and oak charcoal for black color are extracted by an extraction method selected from hot water extraction, solvent extraction, filtration extraction, and reflux extraction, respectively, to obtain each natural pigment extract. get
각각의 천연색소추출물에 색소 배당체와 반응하는 단백질 분해 효소 처리하여 색소 이외 성분을 분리한 다음, 고분자 응집제를 처리하고 원심분리로 층분리하여 300 ~ 500nm 입자크기의 색소분획물을 수득한다.Each natural pigment extract is treated with a proteolytic enzyme that reacts with pigment glycosides to separate components other than pigments, and then treated with a polymer coagulant and layered by centrifugation to obtain a pigment fraction having a particle size of 300 to 500 nm.
각각의 색소분획물과 보조제를 일정 비율로 배합하여 천연염료를 수득한다. 하기 표 1에는 각각의 색상 별 색소분획물과 보조제의 배합비를 기재한 것이다.A natural dye is obtained by combining each pigment fraction and an auxiliary agent in a certain ratio. In Table 1 below, the mixing ratio of the pigment fraction and the adjuvant for each color is described.
<실시 예 2><Example 2>
본 발명의 디지털 날염용 천연점증제를 수득하는 단계(S40)에 의해 디지털 날염용 천연점증제를 수득한다.The natural thickener for digital printing is obtained by the step (S40) of obtaining the natural thickener for digital printing of the present invention.
천연 재료인 감자전분, 옥수수전분, 고구마전분 중에서 하나를 택일하여, 천연 전분과 물을 1 : 1~4 중량비로 혼합한 후, 10 ~ 50분 동안 70 ~ 100℃에서 열처리하면서 교반하여 디지털 날염에 사용 가능한 천연점증제를 수득한다.Select one of the natural materials, potato starch, corn starch, and sweet potato starch, mix natural starch and water in a weight ratio of 1: 1 to 4, heat-treat at 70 to 100 ° C for 10 to 50 minutes and stir while stirring for digital printing. A usable natural thickener is obtained.
상기 수득한 천연점증제는 디지털 날염용 천연잉크를 수득하는 단계(S50)에 투입하기 전에 상온에서 1시간 이상 방치한 후 사용하도록 준비한다.The obtained natural thickener is prepared for use after being allowed to stand at room temperature for 1 hour or more before being added to the step of obtaining natural ink for digital printing (S50).
<실시 예 3><Example 3>
본 발명의 디지털 날염용 천연잉크를 수득하는 단계(S50)에 의해 디지털 날염용 천연잉크를 수득한다.The natural ink for digital printing is obtained by the step of obtaining the natural ink for digital printing of the present invention (S50).
상기 실시 예 1 내지 2에 의해 수득한 C, M, Y, K 색상별 천연염료와, 천연점증제와, 첨가제를 일정 비율로 배합하여 천연잉크조성물을 수득한다. 첨가제로서 계면활성제는 에틸렌글리콜 또는 디에틸렌글리콜, 보습제는 글리세린, 안정제는 1, 4-butandiol을, 산도조절제는 수산화나트륨을 사용하였다. 하기 표 2에는 각각의 색상 별 천연염료, 천연점증제, 및 첨가제의 배합비를 기재한 것이다. A natural ink composition was obtained by mixing natural dyes for each color of C, M, Y, and K obtained in Examples 1 and 2, a natural thickener, and additives in a predetermined ratio. As additives, ethylene glycol or diethylene glycol was used as a surfactant, glycerin was used as a moisturizer, 1,4-butandiol was used as a stabilizer, and sodium hydroxide was used as an acidity regulator. Table 2 below lists the mixing ratio of natural dyes, natural thickeners, and additives for each color.
상기 혼합된 천연잉크조성물을 1㎛ 이하 입자크기로 여과하여 최종적으로 디지털 날염용 천연잉크를 수득한다.The natural ink for digital printing is finally obtained by filtering the mixed natural ink composition to a particle size of 1 μm or less.
<실험 예><Experiment example>
상기 실시 예 3에서 천연염료, 천연점증제, 및 첨가제를 배합하여 최종 수득한 디지털 날염용 C, M, Y, K 색상의 천연잉크(실시 예)와, 상기 실시 예 3에서 천연점증제의 혼합을 배제하여 형성한 천연잉크(비교 예)를 이용하여 원단에 디지털 날염을 실시하고 그 결과물을 확인하였다. 도 2에 도시한 바와 같이 본 발명의 실시 예에 따른 천연잉크 디지털 날염물이 비교 예에 비해 염착성, 발색성이 우수하게 도출되었으며, 특히 원단을 수세후 견뢰도에서 본 발명이 탁월한 효능을 가지는 것을 확인할 수 있다.Mixing of natural inks of C, M, Y, and K colors for digital printing (Example) obtained by combining natural dyes, natural thickeners, and additives in Example 3, and natural thickeners in Example 3 Digital printing was performed on the fabric using natural ink (comparative example) formed by excluding, and the result was confirmed. As shown in FIG. 2, it can be confirmed that the natural ink digital printing according to the embodiment of the present invention has excellent dyeability and color development compared to the comparative example, and in particular, the present invention has excellent efficacy in fastness after washing the fabric with water. there is.
이상에서와 같은 본 발명에 따른 디지털 날염용 천연잉크 제조방법은 종래 화학염료 및 첨가제로 제조되는 디지털 날염 잉크와 차별하여, 천연염료 및 천연점증제를 이용해 디지털 날염에 적합한 물성을 가지는 잉크 제조방법을 제공한다.The method for manufacturing natural ink for digital printing according to the present invention as described above is differentiated from the conventional digital printing ink manufactured with chemical dyes and additives, and a method for manufacturing ink having physical properties suitable for digital printing using natural dyes and natural thickeners. to provide.
따라서, 본 발명은 종래의 디지털 날염에 사용되는 화학염료의 유해성 및 그에 따른 작업환경의 오염, 사용상의 위험성 문제를 배제하고 친환경적인 이점을 가지는 디지털 날염용 천연잉크를 제공하는 효과가 있다.Therefore, the present invention has the effect of providing a natural ink for digital printing that has eco-friendly advantages by excluding the harmfulness of chemical dyes used in conventional digital printing, contamination of the working environment, and hazards in use.
특히, 본 발명은 생분해성 및 무독성, 저비용으로 우수한 물리 화학적 성질을 갖는 식물의 주요 탄소화물 보전 물질인 전분을 함유하는 천연점증제로 이용함으로써 높은 견뢰도 및 염착성, 발색성을 가지는 나노 잉크를 제조하도록 하는 이점이 있다.In particular, the present invention is biodegradable, non-toxic, low-cost, and has the advantage of preparing nano-ink having high fastness, dyeability, and color development by using it as a natural thickener containing starch, which is a major carbide preservation material of plants having excellent physical and chemical properties. there is.
따라서, 본 발명은 디지털 프린팅용 기본색상인 C, M, Y, K의 표준색을 안정적으로 구현할 수 있으므로, 종래 화학염료로 이루어진 DTP용 잉크를 대체하여 기존 사용방식 그대로 사용할 수 있는 디지털 날염용 천연잉크를 제조하도록 하는 효과가 있다.Therefore, since the present invention can stably implement the standard colors of C, M, Y, and K, which are the basic colors for digital printing, it is a natural ink for digital printing that can be used as it is in the existing method by replacing the ink for DTP made of conventional chemical dyes. It has the effect of producing a.
S10: 천연색소추출물을 수득하는 단계
S20: 색소분획물을 수득하는 단계
S30: 천연염료를 수득하는 단계
S40: 디지털 날염용 천연점증제를 수득하는 단계
S50: 디지털 날염용 천연잉크를 수득하는 단계S10: Step of obtaining natural pigment extract
S20: Obtaining a pigment fraction
S30: Obtaining a natural dye
S40: Obtaining a natural thickener for digital printing
S50: Step of obtaining natural ink for digital printing
Claims (5)
상기 천연색소추출물을 효소 처리하여 색소 이외 성분을 분리하고 고분자 응집제를 처리한 후 원심분리로 층분리하여 300 ~ 500nm 입자크기를 갖는 색소분획물을 수득하는 단계(S20)와,
상기 색소분획물을 수득하는 단계(S20)에서 수득한 색소분획물과, 보조제를 배합하여 천연염료를 수득하는 단계(S30)와,
천연재료로부터 분리한 전분을 용매로 처리하여 디지털 날염용 천연점증제를 수득하는 단계(S40)와,
상기 천연염료를 추출하는 단계(S30)에서 수득한 천연염료와, 상기 디지털 날염용 천연점증제를 수득하는 단계(S40)에서 수득한 천연점증제와, 첨가제를 배합하여 디지털 날염용 천연잉크를 수득하는 단계(S50)를 포함하는 것을 특징으로 하는 디지털 날염용 천연잉크 제조방법.Extracting a plurality of natural dyes to obtain natural pigment extracts expressing C, M, Y, and K colors, which are basic colors for digital printing (S10);
Enzymatically treating the natural pigment extract to separate components other than pigment, treating with a polymer coagulant, and then separating the layers by centrifugation to obtain a pigment fraction having a particle size of 300 to 500 nm (S20);
Obtaining a natural dye by combining the pigment fraction obtained in the step of obtaining the pigment fraction (S20) with an auxiliary agent (S30);
Treating starch separated from natural materials with a solvent to obtain a natural thickener for digital printing (S40);
Natural ink for digital printing is obtained by combining the natural dye obtained in the step of extracting the natural dye (S30), the natural thickener obtained in the step of obtaining the natural thickener for digital printing (S40), and additives. A method for producing natural ink for digital printing, comprising the step (S50) of doing.
상기 천연염료를 수득하는 단계(S30)에서는,
C, M, Y, K 색상별 색소분획물 각각에 보조제로서 증류수 57 ~ 63 중량부와, 철분제거제 1 ~ 6 중량부와, 수산화칼륨 2 ~ 8 중량부와, 분산제 13 ~ 21 중량부와, 소포제 1 ~ 4 중량부를 혼합하여 천연염료조성물을 형성하고,
상기 혼합된 천연염료조성물을 1 ~ 400nm 입자크기로 습식 분쇄하여 천연염료를 수득하도록 이루어지는 것을 특징으로 하는 디지털 날염용 천연잉크 제조방법.According to claim 1,
In the step (S30) of obtaining the natural dye,
57 to 63 parts by weight of distilled water, 1 to 6 parts by weight of an iron remover, 2 to 8 parts by weight of potassium hydroxide, 13 to 21 parts by weight of a dispersing agent, and an antifoaming agent for each of the pigment fractions for each color of C, M, Y, and K. 1 to 4 parts by weight are mixed to form a natural dye composition,
A natural ink manufacturing method for digital printing, characterized in that the mixed natural dye composition is wet-pulverized to a particle size of 1 to 400 nm to obtain a natural dye.
상기 디지털 날염용 천연점증제를 수득하는 단계(S40)에서는,
감자전분, 옥수수전분, 고구마전분으로 이루어진 군으로부터 선택된 하나, 또는 감자전분에 상기 전분 중 하나를 혼합한 혼합전분을 사용하되,
상기 혼합전분은, 감자전분과 타 전분의 비율을 1 : 0.8~1.2 중량비로 혼합하여 형성하고,
천연 전분과 물을 1 : 1~4 중량비로 혼합한 후, 10 ~ 50분 동안 70 ~ 100℃에서 열처리하면서 교반하여 디지털 날염에 사용 가능한 천연점증제를 수득하도록 구성하는 것을 특징으로 하는 디지털 날염용 천연잉크 제조방법.According to claim 1,
In the step (S40) of obtaining the natural thickener for digital printing,
Using one selected from the group consisting of potato starch, corn starch, and sweet potato starch, or mixed starch obtained by mixing one of the above starches with potato starch,
The mixed starch is formed by mixing potato starch and other starches at a weight ratio of 1: 0.8 to 1.2,
After mixing natural starch and water in a weight ratio of 1: 1 to 4, stirring while heat-treating at 70 to 100 ° C. for 10 to 50 minutes to obtain a natural thickener usable for digital printing, characterized in that for digital printing Natural ink manufacturing method.
상기 디지털 날염용 천연잉크를 수득하는 단계(S50)에서는,
천연염료 10 ~ 50 중량부와, 천연점증제 10 ~ 30 중량부와, 증류수 40 ~ 80 중량부와, 첨가제로서 계면활성제 10 ~ 30 중량부와, 소포제 2 ~ 15 중량부와, 5 ~ 10 보습제와, 안정제 1 ~ 20 중량부와, 침전방지제 5 ~ 20 중량부와, 산도조절제 5 ~ 10 중량부를 혼합하여 천연잉크조성물을 형성하고,
상기 혼합된 천연잉크조성물을 1㎛ 이하 입자크기로 여과하여 디지털 날염용 천연잉크를 수득하도록 이루어지는 것을 특징으로 하는 디지털 날염용 천연잉크 제조방법.According to claim 1,
In the step of obtaining the natural ink for digital printing (S50),
10 to 50 parts by weight of natural dye, 10 to 30 parts by weight of natural thickener, 40 to 80 parts by weight of distilled water, 10 to 30 parts by weight of surfactant as an additive, 2 to 15 parts by weight of antifoaming agent, and 5 to 10 moisturizer And, 1 to 20 parts by weight of a stabilizer, 5 to 20 parts by weight of an anti-settling agent, and 5 to 10 parts by weight of an acidity regulator are mixed to form a natural ink composition,
A natural ink manufacturing method for digital printing, characterized in that the natural ink for digital printing is obtained by filtering the mixed natural ink composition to a particle size of 1 μm or less.
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| KR100578668B1 (en) | 2003-03-07 | 2006-05-12 | 주식회사 잉크테크 | The printing ink applying to various textile materials, the process for preparing it and the printing method using it |
| KR101502730B1 (en) | 2014-07-14 | 2015-03-13 | (주) 삼희기획 | Digital textile printing method |
| KR20150090896A (en) | 2012-11-28 | 2015-08-06 | 닛뽄 가야쿠 가부시키가이샤 | Ink composition and printing method |
| KR20210051224A (en) | 2019-10-30 | 2021-05-10 | 서진머티리얼 주식회사 | Pigment printing method using digital textile printing |
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| KR20110126955A (en) * | 2010-05-18 | 2011-11-24 | 주식회사 화수목 | The manufacturing method of natural pigment for textile printing, and the natural pigment for textile printing, and the method to textile printing |
| KR20120039919A (en) * | 2010-10-18 | 2012-04-26 | 주식회사 화수목 | Using natural dyes dtp (digital textile printing) method for manufacture of nano-level natural and digital printing inks (digital textile printing) method |
| KR101622902B1 (en) * | 2016-01-25 | 2016-05-19 | 설동훈 | Printing indigo paste and method of dyeing indigo paste printing |
| KR102116078B1 (en) * | 2018-09-18 | 2020-05-28 | 재단법인경북테크노파크 | Manufacturing method of eco-friendly ink for digital priting using natural pigment |
| KR20210041878A (en) * | 2019-10-08 | 2021-04-16 | 주식회사 디티아이 | Natural dye processing method for manufacturing natural ink for dtp |
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| KR100578668B1 (en) | 2003-03-07 | 2006-05-12 | 주식회사 잉크테크 | The printing ink applying to various textile materials, the process for preparing it and the printing method using it |
| KR20150090896A (en) | 2012-11-28 | 2015-08-06 | 닛뽄 가야쿠 가부시키가이샤 | Ink composition and printing method |
| KR101502730B1 (en) | 2014-07-14 | 2015-03-13 | (주) 삼희기획 | Digital textile printing method |
| KR20210051224A (en) | 2019-10-30 | 2021-05-10 | 서진머티리얼 주식회사 | Pigment printing method using digital textile printing |
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