WO2024080772A1 - Papier de transfert de pigment pour impression par transfert de chaleur, et procédé d'impression par transfert de chaleur faisant appel á celui-ci - Google Patents

Papier de transfert de pigment pour impression par transfert de chaleur, et procédé d'impression par transfert de chaleur faisant appel á celui-ci Download PDF

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Publication number
WO2024080772A1
WO2024080772A1 PCT/KR2023/015693 KR2023015693W WO2024080772A1 WO 2024080772 A1 WO2024080772 A1 WO 2024080772A1 KR 2023015693 W KR2023015693 W KR 2023015693W WO 2024080772 A1 WO2024080772 A1 WO 2024080772A1
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WO
WIPO (PCT)
Prior art keywords
layer
weight
transfer paper
printing
pigment
Prior art date
Application number
PCT/KR2023/015693
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English (en)
Korean (ko)
Inventor
전영식
Original Assignee
전영식
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 전영식 filed Critical 전영식
Priority claimed from KR1020230135623A external-priority patent/KR20240051851A/ko
Publication of WO2024080772A1 publication Critical patent/WO2024080772A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/12—Stencil printing; Silk-screen printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • 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
    • C09D5/20—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/40—Adhesives in the form of films or foils characterised by release liners

Definitions

  • the present invention relates to transfer paper for pigment thermal transfer printing and a pigment thermal transfer printing method using the same.
  • a conventional dyeing method that involves dyeing pigments by mixing them with glue, then steaming and washing with water.
  • the coating and fabric are pretreated using the DDP (Direct digital printing) method, dyed by direct spraying using the inkjet method, followed by a process of steaming and washing, and then pretreated using the batch method and then dyed using the inkjet method. A process of printing and then curing by heating.
  • DDP Direct digital printing
  • Method 1 above results in increased costs due to water pollution and excessive water use, and Method 2 is technologically immature, resulting in excessive initial investment and increased costs, which poses a problem in cost competition with existing screen printing. .
  • printing using pigment on textiles includes screen printing and DDP (Direct digital printing).
  • screen printing and DDP methods have unavoidable disadvantages in the emotional aspect, which is the most important in clothing and textiles.
  • the screen printing method has a poor soft feeling, and it is difficult to print in more than 4 colors, and 4-color printing has difficulties due to cost and technical issues, except for simple designs with a single color, which is the most common existing design.
  • the DDP method is the same as the transfer paper method in terms of freedom of design, but it requires the same steaming and washing process as the conventional dyeing method for the printed fabric by spraying it directly on the fabric, so it does not cause environmental pollution, that is, water pollution.
  • Republic of Korea Patent Publication No. 10-2019-0017525 discloses a composition for thermal transfer printing, a transfer paper containing the composition, and a transfer method using the same.
  • the patent discloses a transfer paper manufacturing technology and composition that can be used to print on various types of adherends (cotton, nylon, rayon, leather, polyurethane, leather, silk, raw silicone rubber), which have been difficult to do using sublimation transfer technology until now, using transfer paper. I'm doing it.
  • the above patent is an inkjet printing method using dispersed pigment ink, and is a practical transfer method that has a simple process, is environmentally friendly, and is commercially available, but it has the following problems.
  • the present invention is intended to solve the above-mentioned problems.
  • the pigment transfer paper is easy to separate (cool peel) from the adherend after the transfer paper is cooled, enabling mass production, and the manufacture of this transfer paper.
  • the purpose is to provide a composition for and a transfer printing method using this transfer paper.
  • the present invention dramatically improves the printability on various colors (colored, white), especially colored coatings, improves printing quality, improves design freedom, and improves adhesion to the coating to increase the adhesiveness of the coating.
  • the purpose is to provide a new transfer paper that can improve fastness (wet, dry fastness) and a pigment transfer printing method using this transfer paper.
  • a transfer paper for pigment thermal transfer printing comprising a release layer on one side of the paper base, an ink-receiving layer formed on one side of the release layer, and a design layer formed by pigment ink printing on the ink-receiving layer, wherein the design Provided is a transfer paper for pigment thermal transfer printing including a white layer coated on a transfer paper including the layer.
  • the design layer constituting the transfer paper is inkjet printed, and pigment ink is sprayed onto the ink-receiving layer using a piezo-type inkjet print.
  • the design layer is printed on the ink-receiving layer by inkjet printing, a white layer is applied on the transfer paper using a screen method, and the surface is dried to be used as transfer paper for colored coating.
  • a white layer can be introduced to improve printability (brightness) even on white or white-like (beige, etc.) coatings that are not colored coatings.
  • the transfer paper with the white layer introduced is transferred to the coating by heat and pressure (thermal transfer method).
  • a transfer paper for pigment thermal transfer printing comprising a release layer on one side of the paper base, an ink-receiving layer formed on one side of the release layer, and a design layer formed on the ink-receiving layer by pigment ink printing.
  • a composition for producing a white layer of transfer paper for pigment thermal transfer printing including a white layer additionally coated on a transfer paper containing a design layer, is for producing a white layer of transfer paper for thermal transfer printing containing titanium oxide.
  • a composition is provided.
  • the white layer contains a block isocyanate crosslinking agent to maintain adhesion to the adherend.
  • the white layer contains titanium oxide and acrylic styrene beads as a light modifier to improve the brightness and hiding power of the printed matter.
  • a transfer paper for pigment thermal transfer printing comprising a release layer on one side of the paper base, an ink-receiving layer formed on one side of the release layer, and a design layer formed on the ink-receiving layer by pigment ink printing. It provides a composition for manufacturing a release layer of transfer paper for pigment thermal transfer printing, including a white layer additionally coated (using a screen printing method) on a transfer paper containing the design layer.
  • composition for manufacturing the release layer of the transfer paper for pigment thermal transfer printing includes an octyl phosphate PVA mixture.
  • the composition for producing the release layer includes a silicone emulsion and an octyl phosphate PVA mixture, or a mixture thereof.
  • the octylphosphate PVA mixture contains 10-50% by weight based on the total weight of the release layer.
  • a transfer paper for pigment thermal transfer printing comprising a release layer on one side of the paper base, an ink receiving layer formed on one side of the release layer, and an ink receiving layer formed by pigment ink printing.
  • the composition for manufacturing the ink-receiving layer of the transfer paper for pigment thermal transfer printing which includes a design layer and includes a white layer additionally coated on the transfer paper including the design layer, is an alcohol-soluble resin that causes melting and adhesion reactions at low temperatures as an adhesive ingredient. It contains polyamide resin and water-based melamine resin, and the alcohol-soluble polyamide resin is 5-10% by weight based on the total weight of the ink-receiving layer.
  • a transfer paper for pigment thermal transfer printing comprising a release layer on one side of the paper base, an ink-receiving layer formed on one side of the release layer, and a design layer formed on the ink-receiving layer by pigment ink printing.
  • the release layer provides a transfer paper for pigment thermal transfer printing containing an octyl phosphate PVA mixture, which is a mixture of octyl phosphate and PVA.
  • Pigment thermal transfer paper according to the present invention introduces the concept of DDP (direct digital printing) method and can be applied to various adherends such as various fibers (natural fibers including cotton, silk, nylon, etc.), polyvinyl chloride resin, and thermoplastic polyurethane sheets. can be printed on.
  • various adherends such as various fibers (natural fibers including cotton, silk, nylon, etc.), polyvinyl chloride resin, and thermoplastic polyurethane sheets. can be printed on.
  • the quality is superior to that of conventional printing and can be used on a variety of materials. It is eco-friendly and cost-competitive. Mass production is possible while maintaining printing quality by facilitating peeling from the transfer paper after cooling of the release layer. I did it.
  • the value of the printed material can be increased by printing only partially necessary images on the coating or fabric, which can produce products with high added value.
  • FIG. 1 is a schematic diagram showing the configuration of a transfer paper according to the present invention.
  • Figure 2 is a diagram showing a method of printing in a batch manner using the transfer paper according to the present invention.
  • Figure 3 is a diagram showing a method of continuous printing using the transfer paper according to the present invention.
  • Figure 4 is a photograph of an image printed on a white T-shirt using the transfer paper according to the present invention.
  • the present invention relates to transfer paper printing that allows for sensitivity control (touch sensation), cost reduction, contamination prevention, and mass production, which are problems in the above pigment printing method.
  • the separation of the transfer paper from the adherend after the transfer paper is cooled.
  • the release layer of the pigment transfer paper contains an octyl phosphate PVA mixture as a cool-peel release agent for peeling (cool peel) after cooling, and also contains an octyl phosphate PVA mixture of the release layer.
  • a fluororesin-based hydrophobicity imparting agent was included as a release agent.
  • the printability of colored and colorless (or white) adherends is dramatically improved and the fastness of the coating (wet, dry fastness) is improved by increasing the adhesion to the adherend, such as coating. It is characterized by improvements.
  • colorless and white base coating 150 or colored coating 150 is as follows.
  • the transfer paper 100 for colorless and white background garments or fabrics includes a release layer 110 on one side of the paper base, and an ink-receiving layer 120 formed by coating the release layer, that is, a top coating ( It is composed of a top coating, and on top of it is a design layer 130, that is, an inkjet print layer and a pigment ink layer on which a desired image is formed.
  • a white layer 140 (white layer) was introduced on the design layer 130 to improve printability. Even in the case of white, printability (sharpness) can be further improved by introducing a white layer with high hiding power. This constitutes the main feature of the present invention.
  • the paper base 101 requires weight management because the weight of the paper base has a large impact on the performance of the transfer paper, and a paper base of 80 to 150 g/m 2 is used, preferably 120 g/m 2 or more. A paper base having a basis weight can be used.
  • the barrier layer requires peelability, and the ink-receiving layer must be easily coated and easily transferred to the adherend.
  • This release layer can be mass-produced only when it is easy to separate from the adherend, which is the most difficult process in transfer paper, especially cool peel (peelability in cold conditions).
  • composition for producing the release layer of the transfer paper according to the present invention may include a silicone emulsion, a wax emulsion, or a combination thereof.
  • the release layer contains octyl phosphate and PV as a release agent for peeling (cool peel) after cooling. It is characterized in that it contains a mixture prepared by mixing A, that is, an octyl phosphate PVA mixture.
  • the octyl phosphate PVA mixture is 100 parts by weight of an aqueous solution containing polyvinyl alcohol (PVA) and methyl alcohol at a weight ratio of 5:2 to 5 and having a concentration of 5 to 10% (w/w), and 5 to 10 octyl phosphate.
  • the octyl phosphate PVA mixture includes 100 parts by weight of an aqueous solution containing 5% by weight of polyvinyl alcohol (PVA), 2% by weight of methyl alcohol, and 93% by weight of purified water, and 5 to 10 parts by weight of octyl phosphate.
  • PVA polyvinyl alcohol
  • the release layer in order to further improve the peelability of the release layer, it is characterized by including a fluororesin-based hydrophobicity imparting agent as a release agent.
  • the release layer may include an aqueous silicone emulsion, a wax emulsion, an octyl phosphate PVA compound, and a fluororesin-based hydrophobicity imparting agent.
  • the release layer preferably contains a modified silicone emulsion, octylphosphate PVA mixture. It is characterized by using 1 to 5% by weight of thickener.
  • the release layer was prepared by adding wax emulsion, silicone emulsion, octyl phosphate PVA mixture, fluororesin hydrophobicity imparting agent, surfactant, crosslinking agent, and diluent to acrylic resin in the weight ratio shown in Table 1 below.
  • the release layer manufactured with this composition was easily peeled off from the ink-receiving layer after cooling, improving printing quality, confirming that it was a release layer applicable to mass production.
  • the ink receiving layer 120 accommodates the pigment ink used in inkjet printing without spreading and plays the biggest role in the reliability of the product after printing (fastness test: dry fastness, wet fastness).
  • the ink receiving layer 120 preferably includes a polymer mixture such as ethylene acrylate resin as a binder due to quality requirements.
  • the binder may be made of at least one material selected from the group consisting of acrylic resin, polyurethane resin, polyurethane hybrid resin, ethylene acrylate resin, acrylic modified resin, and polyamide resin with a low melting point.
  • the binder may include at least one of polyvinyl alcohol, polyethylene amide copolymer, polyethylene oxide resin, styrene butadiene resin, melamine resin, water-soluble epoxy, and derivatives thereof.
  • the filler used in the ink-receiving layer can be a general white filler (clay, talc, silica) to improve the ink-receiving performance.
  • the ink receiving layer contains 15-50% by weight of binder, 5-10% by weight of alcohol-soluble resin, 1-10% by weight of filler, 0.5-3% by weight of dispersant, and diluent (deionized water) relative to the total weight of the ink receiving layer. It may contain 30-60% by weight and 0.5-2% by weight of crosslinking agent.
  • the crosslinking agent may include one or more selected from the group consisting of melamine resin crosslinking agent, epoxy crosslinking agent, isocyanate and blocked isocyanate, polyethylenediimine, and polycarbodiimide.
  • An ink-receiving layer was prepared by mixing ethylene acrylate resin (solid content: 30% by weight) with alcohol-soluble polyamide resin, silicon dioxide (silica), dispersant, crosslinking agent, crosslinking aid, and diluent (pure water) in the weight ratio shown in Table 2 below.
  • a white layer that can print a partial, special image on an adherend (cloth, fabric) is introduced to improve design.
  • the white layer 140 is a means for printing images of only the parts necessary for colored coatings and fabrics.
  • the white layer 140 can produce high-quality products with high brightness (color quality) by coating colored coatings and fabrics, including black, with a white layer that has excellent hiding power. Additionally, a technology that can partially print necessary images is one of the effective technologies as one of the features of the present invention.
  • the white layer 140 is a layer that improves the brightness and hiding power of prints in coatings and fabrics, especially colored coatings and fabrics, and provides adhesion to the adherend, and must maintain excellent hiding power and adhesion to the adherend.
  • a material with excellent hiding power such as titanium oxide (TiO 2 , rutile, white pigment) is used to obtain excellent hiding power.
  • the white layer 140 includes titanium oxide (rutile) to improve the brightness and hiding power of the printed matter, and acrylic-styrene beads (product name: op-96K ropaque polymer, Dow chemical company) as a light modifier. ) is characterized in that it includes.
  • fillers and cross-linking agents is important for the white layer 140 in order to print only necessary images on colored coatings and fabrics, increase the brightness of printed materials, and print only necessary images.
  • silicon oxide is used, and the above-mentioned titanium oxide is a white pigment that plays a concealing role, but also acts as a filler.
  • acrylic resin is used as a binder, and titanium oxide and dispersants are used to maintain printing quality.
  • the white layer contains 10-40% by weight of acrylic resin, 5-20% by weight of titanium oxide, 5-20% by weight of light regulator, 5-10% by weight of rheology regulator, and 0.5-5% by weight of crosslinker, based on the total weight of the white layer. , characterized in that it is formed as a white layer forming composition containing 1-10% by weight of a dispersant and 10-40% by weight of a diluent.
  • a white layer was prepared by mixing acrylic resin with rutile titanium, a light modifier, a rheology agent, a surfactant, a cross-linking agent, and a diluent (pure water) in the weight ratio shown in Table 3 below.
  • the transfer paper of the adherend according to the present invention is composed of a release layer 110 on one side of the paper base and an ink receiving layer 120, that is, a top coating, formed by coating on the release layer 110, and an ink receiving layer ( 120)
  • a design layer 130 of a pigment ink layer composed of an inkjet print is formed on top, and in the present invention, a white layer is additionally coated on the transfer paper to improve printability on colored adherends. Even in the case of white adherends, printability (sharpness) can be further improved by introducing a white layer with high hiding power.
  • the pigment ink design layer 130 is formed by printing on transfer paper including a release layer 110 formed on one side of the paper base 101 and an ink receiving layer 120 formed on the release layer 110.
  • the transfer paper on which the pigment ink design layer 130 is formed is additionally coated to form a white layer 140.
  • a release layer 110 and an ink receiving layer 120 formed on the paper base On the adherend 150, such as a coating or fabric, a release layer 110 and an ink receiving layer 120 formed on the paper base, a pigment ink design layer 130 inkjet printed on the ink receiving layer 120, and a white layer ( A transfer paper containing 140) is placed and pressurized and heated (thermal transfer paper method).
  • the adherend and the transfer paper are crosslinked (dyed) by heating at a temperature of 160°C to 200°C for 20 to 45 seconds using a hot plate (a device capable of pressurizing and heating) and a heat roll press.
  • the printed adherend including the white layer and the transfer paper including the release layer are separated.
  • the method of transferring to an adherend using a transfer paper according to the present invention can also be mass-produced using the continuous production, that is, roll to roll method, as shown in FIG. 3.
  • Transfer paper was prepared using the above method, a white cotton T-shirt was prepared as an adherend, and the image was printed in a batch method. Washing fastness and sunlight fastness tests were conducted on the printed adherends, and the results are shown in Tables 4 and 5.
  • Test Items Test result Cotton-sunfastness 3 [Sunlight fastness experiment] KSK ISO 105-B02-2014, Xenon Arc (water cooling method 3: standard blue dye cloth)

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

La présente invention porte sur un papier de transfert de pigment pour impression par transfert de chaleur, et un procédé d'impression par transfert de chaleur faisant appel à celui-ci, et, sur un papier de transfert de pigment qui recouvre une partie à coller, en particulier, une partie à coller colorée, comportant une couche blanche de façon à améliorer considérablement l'aptitude à l'impression, et qui est facilement séparé de la partie à coller de façon à pouvoir être produit en masse. Le papier de transfert de pigment pour impression par transfert de chaleur, selon la présente invention, peut être utilisé pour divers types de partie à coller indépendamment du matériau de la partie à coller.
PCT/KR2023/015693 2022-10-13 2023-10-12 Papier de transfert de pigment pour impression par transfert de chaleur, et procédé d'impression par transfert de chaleur faisant appel á celui-ci WO2024080772A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20220131573 2022-10-13
KR10-2022-0131573 2022-10-13
KR10-2023-0135623 2023-10-12
KR1020230135623A KR20240051851A (ko) 2022-10-13 2023-10-12 안료 열전사 인쇄용 전사지 및 이를 이용한 열전사 인쇄 방법

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WO2024080772A1 true WO2024080772A1 (fr) 2024-04-18

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PCT/KR2023/015693 WO2024080772A1 (fr) 2022-10-13 2023-10-12 Papier de transfert de pigment pour impression par transfert de chaleur, et procédé d'impression par transfert de chaleur faisant appel á celui-ci

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09175049A (ja) * 1995-12-26 1997-07-08 Dainippon Printing Co Ltd 熱転写シート、印字物及び記録方法
JP2002515836A (ja) * 1996-10-24 2002-05-28 コントラ ヴィジョン リミテッド 基材上に耐久性イメージを形成する方法
JP6371906B2 (ja) * 2015-06-01 2018-08-08 富士フイルム株式会社 感熱記録材料及びその製造方法
KR20190017525A (ko) * 2017-08-11 2019-02-20 주상명 열 전사인쇄용 조성물, 상기 조성물을 포함한 전사지 및 이를 이용한 전사방법
JP2022054065A (ja) * 2020-09-25 2022-04-06 大日本印刷株式会社 印画物の製造方法、印画物及び熱転写シート

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09175049A (ja) * 1995-12-26 1997-07-08 Dainippon Printing Co Ltd 熱転写シート、印字物及び記録方法
JP2002515836A (ja) * 1996-10-24 2002-05-28 コントラ ヴィジョン リミテッド 基材上に耐久性イメージを形成する方法
JP6371906B2 (ja) * 2015-06-01 2018-08-08 富士フイルム株式会社 感熱記録材料及びその製造方法
KR20190017525A (ko) * 2017-08-11 2019-02-20 주상명 열 전사인쇄용 조성물, 상기 조성물을 포함한 전사지 및 이를 이용한 전사방법
JP2022054065A (ja) * 2020-09-25 2022-04-06 大日本印刷株式会社 印画物の製造方法、印画物及び熱転写シート

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