KR100260004B1 - Uv coating printed materials with higher adhesion strength and a process thereof - Google Patents

Uv coating printed materials with higher adhesion strength and a process thereof Download PDF

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Publication number
KR100260004B1
KR100260004B1 KR1019980015600A KR19980015600A KR100260004B1 KR 100260004 B1 KR100260004 B1 KR 100260004B1 KR 1019980015600 A KR1019980015600 A KR 1019980015600A KR 19980015600 A KR19980015600 A KR 19980015600A KR 100260004 B1 KR100260004 B1 KR 100260004B1
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South Korea
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coating
layer
hardening
curing
ink
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KR1019980015600A
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Korean (ko)
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KR19980033609A (en
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류재윤
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이종상
주식회사한진피앤씨
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    • 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
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/405—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography characterised by layers cured by radiation
    • 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
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/36—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using a polymeric layer, which may be particulate and which is deformed or structurally changed with modification of its' properties, e.g. of its' optical hydrophobic-hydrophilic, solubility or permeability properties
    • 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
    • C09D11/10—Printing inks based on artificial resins
    • C09D11/101—Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)

Abstract

PURPOSE: An ultraviolet hardening-coating printed subject with increased adhesion strength and a method for manufacturing the same are provided to improve the adhesion force of a UV hardening-coated layer by composing an adhesion layer on a printing layer, thereby preventing the peeling off of the UV hardening-coated layer for a long term use. CONSTITUTION: An ultraviolet hardening-coating printed subject with increased adhesion strength includes an adhesion layer(13) formed by doping a solution of a polymer selected from a chlorinated polypropylene, chlorinated polyethylene and ethylvinyl acetate and dissolved in an organic solvent selected from toluene, methylethylketon, ethylacetate, methanol and ethanol into an emulsion phase on a surface of a paper(11) by 10-30micrometer and drying the solution, and a UV hardening-coated layer(14) formed on the dried surface of the adhesion layer by coating a UV hardening ink, wherein the adhesion layer attaches the UV hardening-coated layer onto a printed layer(12).

Description

접착강도를 높인 자외선경화코팅 인쇄물 및 그 제조방법Ultraviolet curing coating printed matter with high adhesive strength and manufacturing method

이 발명은 자외선(Ultra Violet)경화코팅층의 기층으로 종이의 인쇄면 위에 접착기층을 조성함을 특징으로하는 UV경화코팅 인쇄물 및 그 제조방법에 관한 것이다.The present invention relates to a UV-curable coating printed matter and a method of manufacturing the same, characterized in that an adhesive base layer is formed on a printing surface of paper as a base layer of an ultraviolet ray-curable coating layer.

종래 UV경화코팅 인쇄물은 UV경화잉크 도포롤(R)과 자외선경화기(U)(5kw×3)를 설치한 도1의 UV코팅라인(L)에서 인쇄물을 이동시켜 롤(R)에서 종이위에 UV경화잉크를 도포하고 자외선경화기(U)에서 UV경화잉크를 경화시켜 15~25㎛의 두께로 UV경화코팅층을 조성하는 것이었다.Conventional UV-curing printed matter is transferred to the UV coating line (L) of Figure 1 is installed UV curing ink application roll (R) and UV curing machine (U) (5kw × 3) UV on the paper on the roll (R) The curing ink was applied and the UV curing ink was cured in an ultraviolet curing machine (U) to form a UV curing coating layer with a thickness of 15 to 25 μm.

UV경화잉크는 표1과같이 발색제로서 유기안료 및 무기안료, 매질수지로서 저중합체 폴리머, 모노폴리머, 조제로서 광개시제, 차단제, 왁스, 김서림 방지제 등으로 조성된다. UV잉크는 자외선 조사에 의한 순간경화 특성으로 블로킹현상이 해소되어 비흡수면에서 소지(Al-Foil, PE, PP, PET, PC)에 코팅 할 수 있고, 용제의 증발이 없으므로 경화 과정에서 광택이 소멸되지 않으며, 유성 인쇄잉크에 비해 도막의 강도가 높아 내 마모성이 우수하고, 완전 경화로 인쇄물에 용제가 잔류하지 않아 무취 인쇄물에 적합하고, 내약품성, 내수성, 내약품성 등이 우수하여 내성이 요구되는 식품, 전자산업의 각종 부품, 또는 고가 완제품 포장용 판지의 인쇄에 적합한 등 그 사용 분야가 넓다. 그러나 UV경화 잉크는 인쇄층이 조성된 종이위에 코팅층을 조성하면 접착력이 취약해져서 낮은기온(겨울철)에서 코팅면이 균열되고, 높은기온(여름철)에서 코팅면에 스티커를 부착했다가 분리하면 스티커에 코팅층이 묻어나와 인쇄면에서 UV경화 코팅층이 분리되는 등 접착력의 취약성으로 야기되는 문제점을 가지는 것이었다.UV curing inks are composed of organic pigments and inorganic pigments as colorants, oligomer polymers, monopolymers as media resins, photoinitiators as agents, blocking agents, waxes, antifogging agents and the like. UV ink can be coated on base material (Al-Foil, PE, PP, PET, PC) on the non-absorbing side by the instant curing property by UV irradiation, and there is no solvent evaporation. It is not extinguished and has higher wear resistance due to higher strength of coating film compared to oil-based printing ink.It is suitable for odorless prints because solvents do not remain in prints due to complete curing, and it has excellent chemical resistance, water resistance, chemical resistance, etc. It is widely used for printing foodstuffs, various parts of the electronic industry, or cardboard for packaging expensive finished products. However, UV-curable ink has weak adhesive strength when the coating layer is formed on the paper on which the printing layer is formed, and the coating surface is cracked at low temperature (winter season), and the sticker is attached to the coating surface at high temperature (summer season). There was a problem caused by the weakness of the adhesion, such as the coating layer is buried and the UV curing coating layer is separated from the printing surface.

이 발명은 UV경화코팅층이 인쇄면에서 분리되지 아니하도록 접착력을 강화시킨 UV경화코팅 인쇄물 및 그 제조방법을 제안함에 목적이 있다.An object of the present invention is to propose a UV-curable coating printed product and a method of manufacturing the same, which enhance adhesion, so that the UV-curable coating layer is not separated from the printing surface.

오프셋 인쇄잉크는 안료, 안료, 수지, 용제, 오일등을 주재로하며, 코트지, 반코트지, 아트지, 라벨지, 포장용판지, 노트나 책표지 등 인쇄용 잉크로 널리 사용된다.Offset printing ink is mainly based on pigments, pigments, resins, solvents, oils, etc., and is widely used as printing ink such as coated paper, semi-coated paper, art paper, label paper, packaging paper, notebook or book cover.

오프셋 인쇄잉크(표2)는 도3과 같이 인쇄후 건조되어 망상 셀룰로오즈(31) 조면(32)위에 수지(33), 안료(34) 및 오일(35)이 조합되는 3차원 그물구조 가교도막(36)인쇄층을 조성한다. 이러한 인쇄층은 가교도막(36)의 기저가 셀룰로오즈(31) 조직에 침투하고 조면(32)에 흡착되어 강력한 부착력을 발휘한다. 그러나 종이 표면에 분포하여 건조된 가교도막(36) 인쇄층은 망상 셀룰로오즈(31) 조면과 달리 UV경화 코팅액을 흡수하지 못하고, 인쇄층 대부분에 비 접착성 오일이 분포하므로 UV경화 잉크의 접착력이 매우 취약해 지는 것이다.The offset printing ink (Table 2) is printed and dried as shown in FIG. 3 to form a three-dimensional network crosslinked coating film in which the resin 33, the pigment 34, and the oil 35 are combined on the rough surface 32 of the network cellulose 31. 36) A print layer is formed. In such a print layer, the base of the crosslinked coating film 36 penetrates into the cellulose 31 structure and is adsorbed on the rough surface 32 to exert a strong adhesive force. However, the crosslinked coating film 36 printed on the paper surface and dried, unlike the cellulose 31 roughened surface, does not absorb the UV-curable coating solution, and since most of the non-adhesive oil is distributed on the printing layer, the adhesion of the UV-curable ink is very high. It becomes vulnerable.

이와 같이 UV경화 잉크는 비흡수면 소지(Al-Foil, PE, PP, PET, PC)에 인쇄 가능하며, 경화과정에서 광택이 소멸되지 않으며, 내 마모성이 우수하고, 무취인쇄물에 적합하고, 내약품성, 내수성이 우수한 등 식품, 각종 전자제품 또는 고가 완제품 포장용지의 인쇄에 적합함에도, UV경화코팅층이 인쇄면위에서 박리되어 사용기간중 인쇄 품격을 급격히 저하시키고 있으므로 UV 경화코팅의 접착력 개선은 인쇄품위 유지에 매우 긴요한 과제가되고 있는 것이다.Thus UV curable ink can be printed on non-absorbing surface substrates (Al-Foil, PE, PP, PET, PC), does not disappear gloss during curing process, has excellent wear resistance, and is suitable for odorless printing. Even though it is suitable for printing food, various electronic products or expensive finished product packaging paper such as excellent chemical resistance and water resistance, the UV curing coating layer peels off on the printing surface, which dramatically reduces the printing quality during the use period. It is becoming a very important task to maintain.

제1도는 종래 UV경화잉크 코팅라인 구성도.Figure 1 is a conventional UV curing ink coating line configuration.

제2도는 종이에 조성된 인쇄층의 확대도.2 is an enlarged view of a printed layer formed on paper.

제3도는 이 발명 UV경화잉크 코팅라인(원내에 이 발명 코팅층을 확대도시함).3 is the invention UV curing ink coating line (expanded the invention coating layer in the circle).

이 발명은 인쇄물의 종이 표면에 UV경화코팅층을 조성하는 인쇄물에 있어서, UV경화잉크로 코팅하기 전의 종이 표면에 클로리네이티드 폴리프로필렌, 클로리네이티드 폴리에틸렌 및 에틸비닐 아세테이트 중에서 선택한 중합체를 톨루엔, 메틸에틸케톤, 에틸아세테이트, 메타놀 및 에타놀 중에서 선택한 유기용제에 에멀전 상으로 용해시킨 용액을 10~30㎛두께로 도포하고 건조하여 접착 기층을 형성하고 접착기층 표면에 UV경화 잉크를 코팅하여서 접착강도를 높인 UV 경화코팅 인쇄물을 얻는다.The present invention relates to a printed material which forms a UV-curable coating layer on the surface of a printed matter, wherein a polymer selected from chlorinated polypropylene, chlorinated polyethylene and ethylvinyl acetate is coated on the surface of the paper before coating with UV-curable ink. UV-enhanced adhesive strength by applying a solution dissolved in an emulsion phase in an organic solvent selected from ketones, ethyl acetate, methanol and ethanol to a thickness of 10 to 30㎛ and drying to form an adhesive base layer and coating a UV curing ink on the surface of the adhesive layer. Hardened coating prints are obtained.

도3은 이 발명 UV경화 코팅 라인의 실시예를 보인 것이다. UV경화잉크 도포롤(R)과 UV경화기(U)(5kw×3)를 설치한 UV경화잉크 코팅라인(L)에서, UV경화코팅에 앞서 접착피막액 도포롤(PR)과 건조기(D)를 설치하여, 롤(PR)에서 종이(11) 위에 상기 접착피막액을 도포한 후 건조기(D)에서 건조시켜 접착 기층(13)을 조성하고, 다시 종이(11)위에 UV경화 잉크를 도포하고 경화기(U)에서 경화시켜, 접착 기층(13)이 UV경화코팅층(14)을 인쇄층(12)에 부착하여 UV경화코팅층이 인쇄층에서 분리되지 않는 UV경화코팅 인쇄물을 얻는 것이다.Figure 3 shows an embodiment of this invention UV curing coating line. In the UV curing ink coating line (L) equipped with the UV curing ink application roll (R) and the UV curing machine (U) (5kw × 3), the adhesive coating liquid application roll (PR) and the dryer (D) prior to the UV curing coating. By applying the adhesive coating liquid on the paper (11) in the roll (PR), and then dried in the dryer (D) to form an adhesive base layer (13), and again apply UV curing ink on the paper (11) By curing in the curing machine (U), the adhesive base layer 13 attaches the UV-curable coating layer 14 to the printing layer 12 to obtain a UV-curable coating printed material in which the UV-curable coating layer is not separated from the printing layer.

[실시예 1]Example 1

종래의 UV경화코팅 :Conventional UV Curing Coatings:

도1 인쇄라인에서 UV경화코팅롤셋을 통과시켜 포장용 판지 인쇄층 위에 20㎛ 두께로 UV경화코팅층을 조성하였다.1 through the UV-cured coating roll set in the printing line to form a UV-cured coating layer to a thickness of 20㎛ on the packaging cardboard printing layer.

조성된 UV경화코팅면에 스티커를 부착한 후 분리하였더니 UV경화코팅층이 스티커의 접착면에 묻어나와 판지의 인쇄면에서 분리되었다.The sticker was attached to the UV cured coating surface, and then separated. The UV cured coating layer was buried on the adhesive surface of the sticker and separated from the printing surface of the cardboard.

[실시예 2]Example 2

이 발명 UV경화코팅 :This invention UV curing coating:

UV경화잉크를 코팅한 포장용 판지 인쇄물을 제조하기 위하여, 도3의 코팅라인에서 UV경화잉크로 코팅하기 전 판지의 표면에 아래 접착기층 조성액을 15㎛두께로 도포하고 85℃의 건조기를 통과시키면서 건조시켜 접착기층을 조성하고 기층 위에 20㎛두께로 UV경화 잉크를 코팅하고 UV경화기에서 경화시켰다.In order to manufacture a packaging cardboard print coated with UV curing ink, the adhesive layer composition solution was applied to the surface of the cardboard at a thickness of 15 μm before coating with UV curing ink in the coating line of FIG. 3 and dried while passing through a dryer at 85 ° C. The adhesive layer was formed, and a UV-curable ink was coated on the substrate to a thickness of 20 μm and cured in a UV curing machine.

[접착기층 조성용액의 조성][Composition of Adhesive Layer Composition Solution]

중합체 클로리네이티드 폴리프로필렌 60중량부Polymer Chlorinated Polypropylene 60 parts by weight

에틸렌비닐아세테이트 30중량부30 parts by weight of ethylene vinyl acetate

용제 톨루엔과 에틸아세테이트(50:50) 적량Appropriate amount of solvent toluene and ethyl acetate (50:50)

(중합체를 에멀전상으로 녹인다)(Melt polymer into emulsion phase)

위에서 포장용 판지위에 얻은 UV경화코팅면에 스티커를 부착하고 -25℃에서 3시간을 방치한 후 스티커를 분리하였더니 UV경화 코팅층은 인쇄쇄면에서 분리되지 아니하였다.The sticker was attached to the UV-curable coating surface obtained on the packaging cardboard from above, and the sticker was separated after leaving for 3 hours at -25 ° C., and the UV-curable coating layer was not separated from the printing surface.

25℃온도하에서 같은 실험을 실시하여 같은 동일한 결과를 얻었다.The same experiment was carried out at 25 ° C. to obtain the same results.

[실시예 3]Example 3

다음 접착기층 조성액을 조성하고 실시예 2와같이 실험하여 실시예 2와 같은 결과를 얻었다.Next, the adhesive base layer composition was prepared and experimented in the same manner as in Example 2 to obtain the same result as in Example 2.

[접착기층 조성용액의 조성][Composition of Adhesive Layer Composition Solution]

중합체 클로리네이티드 폴리프로필렌 30중량부30 parts by weight of polymer cloned polypropylene

클로리네이티드 폴리에틸렌 30중량부30 parts by weight of cloned polyethylene

에틸렌비닐아세테이트 30중량부30 parts by weight of ethylene vinyl acetate

용제 톨루엔, 에틸아세테이트 및 메타놀 (50:50:50) 적량Solvent Toluene, Ethyl Acetate and Methanol (50:50:50)

[실시예 4]Example 4

다음 접착기층 조성액을 조성하고 실시예 2와같이 실험하여 실시예2와 같은 결과를 얻었다.Next, the adhesive base layer composition was prepared and experimented as in Example 2 to obtain the same result as in Example 2.

[접착기층 조성용액의 조성][Composition of Adhesive Layer Composition Solution]

중합체 클로리네이티드 폴리프로필렌 55중량부55 parts by weight of polymer cloned polypropylene

에틸렌비닐아세테이트 35중량부35 parts by weight of ethylene vinyl acetate

용제 메틸에틸케톤, 톨루엔, 에틸아세테이트 (40:50:30) 적량Solvent methyl ethyl ketone, toluene, ethyl acetate (40:50:30) appropriate amount

[실시예 5]Example 5

다음 접착기층 조성액을 조성하고 실시예 2와 같이 실험하여 실시예 2와 같은 결과를 얻었다.Next, the adhesive base layer composition was prepared and experimented in the same manner as in Example 2 to obtain the same result as in Example 2.

[접착기층 조성용액의 조성][Composition of Adhesive Layer Composition Solution]

중합체 클로리네이티드 폴리프로필렌 50중량부50 parts by weight of polymer cloned polypropylene

클로리네이티드 폴리에틸렌 50중량부50 parts by weight of chlorinated polyethylene

용제 톨루엔, 에틸아세테이트 및 메타놀 (50:50:30) 적량Solvent Toluene, Ethyl Acetate and Methanol (50:50:30)

이와 같이 이 발명은 종이의 인쇄면 위에 UV코팅층 조성함에 있어서, 인쇄층 위에 접착기층을 조성하여 UV경화코팅층의 접착력을 향상시킨것으로서, 화장품케이스, 문구류, 과자포장지, 쵸콜렛포장지, 의약품케이스 등 고가 인쇄물 사용 기간중 인쇄물의 UV경화코팅층이 박리되지 아니하여 인쇄물의 품격을 지속시키는 효과가 있다.As such, the present invention is to improve the adhesion of the UV curing coating layer by forming an adhesive layer on the printing layer in the composition of the UV coating layer on the printing surface of paper, cosmetics, stationery, confectionery packaging, chocolate packaging, pharmaceutical cases such as expensive printed matter The UV cured coating layer of the printed matter does not peel off during the use period, thereby maintaining the dignity of the printed matter.

Claims (2)

인쇄물의 종이 표면에 UV경화코팅층을 조성한 인쇄물에 있어서, UV경화잉크 코팅 전의 종이 표면에 클로리네이티드 폴리프로필렌, 클로리네이티드 폴리에틸렌 및 에틸비닐 아세테이트 중에서 선택한 중합체를 톨루엔, 메틸에틸케톤, 에틸아세테이트, 메타놀 및 에타놀 중에서 선택한 유기용제에 에멀전 상으로 용해시킨 용액을 10~30㎛두께로 도포하고 건조하여 접착 기층을 조성하고 접착기층 표면에 UV경화 잉크를 코팅하여서 됨을 특징으로하는 접착강도를 높인 자외선 경화코팅 인쇄물.In a print having a UV cured coating layer formed on the surface of a print, a polymer selected from chlorinated polypropylene, chlorinated polyethylene, and ethylvinyl acetate is selected from toluene, methyl ethyl ketone, ethyl acetate, and methanol in the paper surface before UV curing ink coating. And UV-curable coating with high adhesion strength, wherein the solution dissolved in the emulsion phase in an organic solvent selected from ethanol is applied to the thickness of 10-30 μm and dried to form an adhesive base layer and coating a UV-curable ink on the surface of the adhesive layer. prints. 인쇄물의 종이 표면에 UV경화코팅층을 조성하는 인쇄물의 제조 방법에 있어서, UV경화잉크로 코팅하기 전의 종이 표면에 클로리네이티드 폴리프로필렌, 클로리네이티드 폴리에틸렌 및 에틸비닐 아세테이트 중에서 선택한 중합체를 톨루엔, 메틸에틸케톤, 에틸아세테이트, 메타놀 및 에타놀 중에서 선택한 유기용제에 에멀전 상으로 용해시킨 용액을 10~30㎛두께로 도포하고 건조하여 접착 기층을 형성하고 접착기층 표면에 UV경화 잉크를 코팅함을 특징으로하는 접착강도를 높인 자외선 경화코팅 인쇄물 제조방법.In the method for producing a printed matter, wherein the UV cured coating layer is formed on the surface of the printed matter, a polymer selected from chlorinated polypropylene, chlorinated polyethylene, and ethylvinyl acetate is coated on the surface of the paper before coating with UV-curable ink. A solution characterized by applying a solution dissolved in an emulsion phase in an organic solvent selected from ketones, ethyl acetate, methanol and ethanol to a thickness of 10 to 30 μm and drying to form an adhesive base layer and coating a UV-curable ink on the surface of the adhesive base layer. UV curing coating printed product manufacturing method with increased strength.
KR1019980015600A 1998-04-30 1998-04-30 Uv coating printed materials with higher adhesion strength and a process thereof KR100260004B1 (en)

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KR100448313B1 (en) * 2001-08-23 2004-09-10 이미숙 Method for Tubular sack coating
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KR20120129614A (en) * 2011-05-20 2012-11-28 주식회사 다이아벨 Electronic equipment housing and luminous apparatus using it

Citations (2)

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JPS5565587A (en) * 1978-11-09 1980-05-17 Nippon Synthetic Chem Ind Co Ltd:The Processed paper for transfer printing
EP0522801A1 (en) * 1991-07-04 1993-01-13 TDK Corporation Printing ink for slightly adherent plastic base

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5565587A (en) * 1978-11-09 1980-05-17 Nippon Synthetic Chem Ind Co Ltd:The Processed paper for transfer printing
EP0522801A1 (en) * 1991-07-04 1993-01-13 TDK Corporation Printing ink for slightly adherent plastic base

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