INK COMPOSITION FOR 3D PRINTING SUPPORT AND 3D PRINTING MANUFACTURING METHOD USING THE SAME

Abstract
The present invention relates to an ink composition for a 3D printing support, comprising an amine-containing monomer and a curing agent. According to the present invention, an ink composition for a 3D printing support, which retains an excellent jetting property, is well dissolved in water after being photo-cured to be easily removed, and has less curing contraction and excellent storage stability, can be provided.
Description
TECHNICAL FIELD

The present application claims the benefit of priority to Korean Patent Application No. 10-2015-0102625, filed Jul. 20, 2015, which is incorporated herein by reference in its entirety for all purpose.


The present invention relates to an ink composition for a 3D printing support. More specifically, it relates to an ink composition for a 3D printing support, which can be used to an inkjet-type 3D printer, has an excellent jetting property, and is well dissolved in water after being cured to be easily removed.


BACKGROUND ART

A 3D printer is a printer that imprints a specific stuff three-dimensionally, and it is a device that can create a real object in a three-dimensional space as printing a three-dimensional design on a paper. Like the principle of printing a 2D image on a paper by jetting an ink onto the surface of the paper after a digitalized file is transferred to an inkjet printer, a 2D printer only moves front to back (x-axis) and left to right (y-axis), but the 3D printer adds an up-and-down (z-axis) motion to this to make a three-dimensional article based on the imputted 3D design.


When making a sculpture by this 3D printer, the sculpture of a bridge shape or a shape of floating in the air needs a support material. The support material should have a good supporting function when forming the sculpture and also should be well removed later.


Thus, a support ink which can be used in an inkjet type 3D printer is required, but the existing support ink had a problem that it needs a complicated removal process such as removing the support part manually or removing the support part one by one through a water jet method. For example, Korean Patent Publication No. 2013-0141561 discloses a support material for supporting shape when manufacturing an inkjet photo-shaped article, but in this case, there are problems that it takes much time and effort to remove the support part, it is difficult to remove completely, and contraction of the support is happened.


Thus, in order to solve these problems, studies for an ink which can be photo-cured and also removed by a simple method such as shaking in water after being cured or sonication are needed.


DISCLOSURE
Technical Problem

The present invention has been made keeping in mind the above problems in the related art, and an object of the present invention is to provide an ink composition for a 3D printing support, which has an excellent jetting property, is well dissolved in water after being photo-cured to be easily removed, and has less curing contraction and excellent storage stability.


Technical Solution

The present invention provides an ink composition for a 3D printing support, comprising an amine-containing monomer and a curing agent.


Further, the present invention provides a manufacturing method for 3D printing characterized by using the ink composition for a 3D printing support.


Advantageous Effects

According to the ink composition for a support,


There are advantages that it is well dissolved in water after being photo-cured to be easily removed, and has an excellent dimensional stability due to improved curing contraction characteristic.


MODE FOR INVENTION

Hereinafter, the present invention will be described in detail.


The ink composition for a 3D printing support according to the present invention is characterized by comprising an amine-containing monomer and curing agent.


The ink composition for a 3D printing support according to the present invention, having the above composition, can provide an ink composition for a 3D printing support, which has an excellent jetting property, is well dissolved in water after being photo-cured to be easily removed, and has less curing contraction and excellent storage stability.


First, the ink composition for a 3D printing support according to the present invention comprises an amine-containing monomer. The ink composition for a 3D printing support of the present invention may have an excellent curing property and be dissolved in water after being cured by comprising the amine-containing monomer.


In the present invention, the amine-containing monomer may be anything used in the art without particular limitation, but preferably, it may be at least one compound of the following Formula 1 to Formula 6.


First, as the amine-containing monomer of the present invention, the compound of the following Formula 1 may be used.




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In the Formula 1, R1 may be hydrogen or methyl, and R2 and R3 may be each independently hydrogen, C1 to C10 alkyl, vinyl, alkoxyl, cyclohexyl, phenyl, benzyl, alkylamine, alkyl ester or alkyl ether.


Further, preferably, in the Formula 1, R2 and R3 may be each independently hydrogen, methyl, ethyl, propyl, isopropyl, n-butyl, tert-butyl,




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R′1 may be CH2, CH2CH2, CH2CH2CH2, CH(CH3)CH2, CH2CH2CH2CH2, CH2C(CH3)2 or C(CH3)2CH2CH2, R′2 and R′3 may be each independently hydrogen, CH3, CH2CH3, CH2CH2CH3, CH2CH(CH3)2, CH2C(CH3)3, CH(CH3)2, CH2CH2CH2CH3, C(CH3)2CH2CH3 or —CH═CH2,


R″1 may be CH2, CH2CH2, CH2CH2CH2, CH(CH2)CH2, CH2CH2CH2CH2, CH2C(CH3)2 or C(CH3)2CH2CH2, and R″2 may be hydrogen, CH3, CH2CH3, CH2CH2CH3, CH2CH(CH3)2, CH2C(CH3)3, CH(CH3)2, CH2CH2CH2CH3, C(CH3)2CH2CH3 or —CH═CH2.


Further, preferably, the Formula 1 may be the following Formula 1a.




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In the Formula 1a, R′1 may be hydrogen or methyl, and R′2 and R′3 may be each independently hydrogen, methyl, ethyl, propyl, isopropyl, n-butyl, tert-butyl or —CH═CH2.


Further, as the amine-containing monomer of the present invention, the compound of the following Formula 2 may be used.




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In the Formula 2, R′1 and R′2 may be each independently hydrogen, C1 to C10 alkyl, vinyl, alkoxyl, cyclohexyl, phenyl, benzyl, alkylamine, alkyl ester or alkyl ether, and R′3 may be hydrogen or methyl.


Further, preferably, in the Formula 2, R′1 and R′2 may be each independently hydrogen, methyl, ethyl, propyl, isopropyl, n-butyl, tert-butyl,




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Further, as the amine-containing monomer of the present invention, the compound of the following Formula 3 may be used.




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In the Formula 3, R1 may be hydrogen or methyl, R2 may be CH2, CH2CH2, CH2CH2CH2, CH(CH2)CH2, CH2CH2CH2CH2, CH2C(CH3)2 or C(CH3)2CH2CH2, and R3 and R4 may be each independently hydrogen, methyl, ethyl, propyl, isopropyl, n-butyl, tert-butyl, —CH═CH2 or —CH2—CH═CH2.


Further, as the amine-containing monomer of the present invention, the compound of the following Formula 4 may be used.




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In the Formula 4, n may be an integer of 1 to 4, A may be C, O, N or S, R1, R2 and R3 may be each independently hydrogen or C1 to C10 alkyl, and R4 may be —CH═CH2,




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Further, preferably, the Formula 4 may be




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Further, as the amine-containing monomer of the present invention, the compound of the following Formula 5, Formula 6 or Formula 7 may be used.




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The amine-containing monomer may be contained in an amount of 10 to 99.9 wt % based on the total weight of the ink composition of the present invention. If the amount of the amine-containing monomer is less than 10 wt %, water solubility may be insufficient when removing a support, and if the amount thereof is more than 99.9 wt %, a curing characteristic may be worsen.


The ink composition for a 3D printing support according to the present invention comprises a curing agent. The ink composition for a 3D printing support of the present invention may be used in a curing process through various curing methods by comprising the curing agent.


In the present invention, as the curing agent, various curing agents used in the art may be used depending on curing methods, without particular limitation. As a specific example of the curing agent, a photo-initiator may be used. The photo-initiator may be anything used in the art in accordance with a light source in use, without particular limitation. Preferably, it may be a commercial item, for example, Irgacure 819 (bis acryl phosphine-based), Darocur TPO (mono acryl phosphine-based), Irgacure 369 (α-aminoketone-based), Irgacure 184 (α-hydroxyketone-based), Irgacure 907 (α-aminoketone-based), Irgacure 2022 (Bis acryl phosphine/α-hydroxyketone-based), Irgacure 2100 (Phosphine oxide-based), Darocur ITX (isopropyl thioxanthone) or a photo-initiator having similar structure thereto.


In the present invention, the curing agent may be contained in an amount of 0.01 to 20 wt % based on the total weight of the ink composition of the present invention, and preferably, it may be contained in an amount of 1 to 10 wt %. If the amount of the curing agent is less than 0.01 wt %, curing may not be happened, and if the amount thereof is more than 20 wt %, a head may be blocked because curing sensitivity is too much increased.


The ink composition for a 3D printing support according to the present invention may further comprise a monomer containing at least one of a vinyl group and an acrylate group. The ink composition for a 3D printing support of the present invention may have characteristics that it can control curing sensitivity and membrane properties such as strength of a cured product (softness or hardness), by comprising the monomer containing at least one of a vinyl group and an acrylate group.


In the present invention, the monomer containing at least one of a vinyl group and an acrylate group may be anything used in the art, without particular limitation. Preferably, it may be at least one selected from the group consisting of vinyl acetate, 2-hydroxyethyl(meth)acrylate, 2-hydroxymethyl(meth)acrylate, 2-hydroxypropyl(meth)acrylate, 4-hydroxybutyl(meth)acrylate, ethyl-2-hydroxyacrylate, 2-(acryloyloxy)ethyl hydrogen succinate and methacylic acid.


In the present invention, the monomer containing at least one of a vinyl group and an acrylate group may be contained in an amount of 0.1 to 80 wt % based on the total weight of the ink composition of the present invention. If the amount of the monomer containing at least one of a vinyl group and an acrylate group is less than 0.1 wt %, it may be difficult to obtain sufficient effect according to addition of the monomer, and if the amount thereof is more than 80 wt %, a cured product may not be dissolved in water.


The ink composition for a 3D printing support according to the present invention may further comprise a water soluble polymer. The ink composition for a 3D printing support of the present invention may have characteristics that it can control viscosity of the ink, and it allows the cured product to be easily dissolved in water, by comprising the water soluble polymer.


In the present invention, the water soluble polymer may be anything used in the art, without particular limitation. Preferably, it may be at least one selected from the group consisting of the compounds of the following Formula 8a to Formula 8e.




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(In Formulae 8a to 8e, n is 50 to 25,000.)


In the present invention, the water soluble polymer may be contained in an amount of 0.1 to 30 wt % based on the total weight of the ink composition of the present invention. If the amount of the water soluble polymer is less than 0.1 wt %, effect on solubility increase according to addition of the polymer may be minor, and if the amount thereof is more than 30 wt %, jetting may be impossible due to increased viscosity of the ink.


The ink composition for a 3D printing support according to the present invention may further comprise a vinyl ether compound. The ink composition for a 3D printing support of the present invention may prevent contraction of the cured product of the composition, by comprising the vinyl ether compound.


In the present invention, the vinyl ether compound is not particularly limited, and it may preferably be 4-hydroxybutyl vinyl ether (HBVE), ethyl vinyl ether, butyl vinyl ether, cyclohexyl vinyl ether, 2-ethylhexyl vinyl ether, dodecyl vinyl ether, diethylene glycol divinyl ether, 1,4-cyclohexane dimethanol divinyl ether, triethylene glycol divinyl ether, 1,4-butanediol divinyl ether and the like.


In the present invention, the vinyl ether compound may be contained in an amount of 0.1 to 50 wt % based on the total weight of the ink composition of the present invention. If the amount of the vinyl ether compound is less than 0.1 wt %, improvement of contraction while curing may be little, and if the amount there of is more than 50 wt %, hardness and strength of the membrane while curing may become weak, and curing sensitivity may be reduced.


The ink composition for a 3D printing support according to the present invention may further comprise additives in addition to the above composition. The additives contained in the composition may be a surfactant, a plasticizer, a polymerization inhibitor, an antifoaming agent, a diluent, a thermal stabilizer, a viscosity controlling agent and the like.


The additives may be contained in the least amount that it can induce the above effects in terms of economics, and preferably contained in an amount of 0.1 to 5 wt % based on the whole ink composition.


Further, the present invention provides a support manufactured with the ink composition for a 3D printing support mentioned above.


The support may be anything used in a 3D printing process without particular limitation.


Further, the present invention provides a manufacturing method for 3D printing characterized by using the ink composition for a 3D printing support mentioned above.


The manufacturing method may be any manufacturing method related to a 3D printing process, without particular limitation.







BEST MODE CARRYING OUT THE INVENTION

The present invention will be explained in detail with reference to the following examples, including test examples. However, these examples are provided for illustrative purposes only and are not intended to limit the scope of the invention.


EXAMPLE

1. Preparation of Ink Composition


As shown in the following Table 1, a monomer containing at least one of an amine-containing monomer, a vinyl group and an acrylate group (V/A monomer), a curing agent, a water soluble polymer, a vinyl ether compound and the like were mixed to prepare ink compositions of Examples 1 to 26.















TABLE 1










Water
Vinyl



Amine-containing
Curing
V/A
soluble
ether



monomer
agent
monomer
polymer
compound





















Example 1
DMA
I 819






(96.6 wt %)
(3.4 wt %)


Example 2
DMA + DAA
TPO



(64.4 + 32.2 wt %)
(3.4 wt %)


Example 3
DMA + DMAPMA
I 819



(64.4 + 32.2 wt %)
(3.4 wt %)


Example 4
DMA + NMNVA
I 819



(64.4 + 32.2 wt %)
(3.4 wt %)


Example 5
DMA + DMAEA
I 819



(64.4 + 32.2 wt %)
(3.4 wt %)


Example 6
DMA + VP
I 819



(48.3 + 48.3 wt %)
(3.4 wt %)


Example 7
ACMO + VP
I 819



(48.3 + 48.3 wt %)
(3.4 wt %)


Example 8
NIPA + VP
I 819



(48.3 + 48.3 wt %)
(3.4 wt %)


Example 9
DMA + VP
I 819
VA





(38.25 + 38.25 wt %)
(3.5 wt %)
(20 wt %)


Example 10
DMA + VP
I 819
HEA



(43.25 + 43.25 wt %)
(3.5 wt %)
(10 wt %)


Example 11
DMA
I 819
HEA



(86.5 wt %)
(3.5 wt %)
(10 wt %)


Example 12
DMA + VP
I 819
HBA



(45 + 36.5 wt %)
(3.5 wt %)
(15 wt %)


Example 13
DMA
I 819
HEMA



(46.5 wt %)
(3.5 wt %)
(50 wt %)


Example 14
DMA + VP
I 819
MA



(59.0 + 29.5 wt %)
(3.5 wt %)
(8 wt %)


Example 15
DMA
I 819
HEMA
PVP




(43.0 wt %)
(3.5 wt %)
(41.5 wt %)
(0.5 wt %)


Example 16
DMA + VP
I 819

PAA



(48.0 + 48.0 wt %)
(3.5 wt %)

(0.5 wt %)


Example 17
HDMA + VP
I 819

PEI



(43.75 + 43.75 wt %)
(3.5 wt %)

(9 wt %)


Example 18
DMA + VP
I 819
HEMA
PEI



(45.75 + 35.75 wt %)
(3.5 wt %)
(10 wt %)
(5 wt %)


Example 19
DMA + VP
I 819
HEMA
PAA



(60.25 + 25.75 wt %)
(3.5 wt %)
(10 wt %)
(0.5 wt %)


Example 20
DMA + DAAM + VP
I 819

PVP
HBVE



(31.0 + 10.0 + 21.0 wt %)
(4.0 wt %)

(14 wt %)
(20 wt %)


Example 21
DMA + VP
I 819


HBVE



(46 + 32.5 wt %)
(3.5 wt %)


(18 wt %)


Example 22
DMA + VP
I 819
HEMA

HBVE



(46 + 12.5 wt %)
(3.5 wt %)
(20 wt %)

(18 wt %)


Example 23
DMA + VP
I 819

PVP
IBVE



(38 + 38 wt %)
(3.5 wt %)

(0.5 wt %)
(20 wt %)


Example 24
DMA + VP
I 819


IBVE



(46 + 32.5 wt %)
(3.5 wt %)


(18 wt %)


Example 25
DMA + VP
I 819
HEMA

IBVE



(46 + 12.5 wt %)
(3.5 wt %)
(20 wt %)

(18 wt %)


Example 26
DMA + VP
I 819
HEMA
PVP
HBVE



(41 + 21 wt %)
(3.5 wt %)
(4 wt %)
(10 wt %)
(20 wt %)





DMA: N,N-dimethylacrylamide


DAA: Diacetone acrylamide


DMAPMA: N-[3-(dimethylamino)propyl]methacrylamide


NMNVA: N-methyl-N-vinylacetamide


*DMAEA: 2-(dimethylamino)ethyl acrylate


VP: N-vinyl pyrrolidone


ACMO: 4-acryloylmorpholine


NIPA: N-isopropylacrylamide


VA: Vinyl acetate


HEA: 2-hydroxyethyl acrylate


HEMA: 2-hydroxyethyl methacrylate


HBA: 4-hydroxybutylacrylate


MA: Methacrylic acid


PVP: Polyvinylpyrrolidone


PEI: Polyethyleneimine


PAA: Polyacrylic acid


HBVE: 4-hydroxybutylvinyl ether


IBVE: Isobutylvinyl ether






Further, ink compositions of Comparative Examples 1 to 7 were prepared as follows.














TABLE 2







A
B
C
D




















Comparative
BA
I 819
DPGDA



Example 1
(48.25 wt %)
(3.5 wt %)
(48.25 wt %)


Comparative
TMPTA
I 819
DPGDA


Example 2
(48.25 wt %)
(3.5 wt %)
(48.25 wt %)


Comparative
EA
I 819
GDGDA


Example 3
(76.5 wt %)
(3.5 wt %)
(20 wt %)


Comparative
TMPTA
I 819
HEMA


Example 4
(48.25 wt %)
(3.5 wt %)
(48.25 wt %)


Comparative
DPGDA
I 819
HEA


Example 5
(48.25 wt %)
(3.5 wt %)
(48.25 wt %)


Comparative

I 819
HEMA
PVP


Example 6

(3.5 wt %)
(88.5 wt %)
(8.0 wt %)


Comparative
IBOA
I 819
GDGDA


Example 7
(86.5 wt %)
(3.5 wt %)
(10 wt %)





BA: Butyl acrylate


DPGDA: Dipropylene Glycol Diacrylate


TMPTA: Trimethylolpropane triacrylate


EA: Ethyl acrylate


IBOA: Isobornyl acrylate


GDGDA: Glycerol 1,3-diglycerolate diacrylate






Test Example

Supports were prepared using the ink compositions prepared in Examples 1 to 25 and Comparative Examples 1 to 7. Specifically, 4 to 5 drops of the ink composition was dropped on a substrate and then exposed to a high pressure mercury lamp at 1000 mJ/cm2 to prepare a support. Then, hardness, solubility in water and improvement of curing contraction were evaluated as follows.


Test Example 1. Evaluation of Hardness

The ink composition was spin coated on a glass and exposed to a LED lamp of wavelength of 365 nm. Whether the composition was cured or not was observed with eyes while controlling exposure amount to 120 to 1000 mJ/cm2 and then curing sensitivity was decided. If the composition was cured successfully, it was decided as o, and if the composition was cured unsuccessfully, it was decided as x. The results are shown in Table 3.


Test Example 2. Evaluation of Solubility in Water

The ink composition was dropped on a film substrate using a spuit, and then exposed to a high pressure mercury lamp at 1000 mJ/cm2. Multiple layers were repeatedly formed to make a support ink cured product sample, and the sample was peeled off from the substrate and immersed in water. A bottle where the ink cured product was immersed was put in a sonicator and sonicated for 60 mins. Then, whether the cured product sample was dissolved or not was confirmed to evaluate solubility.


If the sample was dissolved well in water, it was decided as o, if the sample was dissolved little, it was decided as Δ, and if the sample was not dissolved in water, it was decided as x. The results are shown in Table 3.


Test Example 3. Evaluation of Curing Contraction Improvement

The ink composition was dropped on a film substrate using a spuit, and then exposed to light for curing. Then whether the film was bent or not was observed. If the film was bent sharply, it was decided that curing contraction was happened, and if original shape of the film was kept, it was decide that there was no curing contraction.


If there was no curing contraction, it was decided as o, if there was small curing contraction, it was decided as Δ, if there was large curing contraction, it was decided as x, and if the was sample was not dissolved in water, it was decided as—because improvement of curing contraction was not measured. The results are shown in Table 3.













TABLE 3









Improvement of



Hardness
Solubility in water
curing contraction



















Example 1


x


Example 2


x


Example 3


Δ


Example 4


Δ


Example 5


x


Example 6


x


Example 7


x


Example 8


x


Example 9


x


Example 10


x


Example 11


x


Example 12


x


Example 13


x


Example 14


x


Example 15


x


Example 16


x


Example 17





Example 18





Example 19


x


Example 20





Example 21





Example 22





Example 23





Example 24





Example 25





Example 26





Comparative

x



Example 1


Comparative

x



Example 2


Comparative

x



Example 3


Comparative

x



Example 4


Comparative

x



Example 5


Comparative

x



Example 6


Comparative

x



Example 7









As shown in Table 2 of Test Example, the ink compositions of Example 1 to Example 26 had excellent hardness and solubility in water. In particular it can be found that the compositions of Example 17, Example 18, and Example 20 to Example 26 are excellent in terms of curing contraction. Herein, the term “soluble” means all states that, when the cured product is immersed in water and then shaken or sonicated, lumps of the cured product are dissolved in water, the cured product is dispersed in water, or the cured product is floated in water in the shape of fine powder. Thus, the ink compositions of Example 1 to Example 26 were evaluated that it is very sufficient for the ink composition for a support used in a 3D printing process.


In comparison, the compositions of Comparative Example 1 to Comparative Example 7 not containing the amine-containing monomer was hardly removed later when it was used as a support ink because the cured product was not dissolved in water. Thus, the ink compositions of Comparative Example 1 to Comparative Example 7 was evaluated that it is insufficient for the ink composition for a support used in a 3D printing process.

Claims
  • 1. An ink composition for a 3D printing support comprising an amine-containing monomer and a curing agent.
  • 2. The ink composition for a 3D printing support according to claim 1, which further comprises a monomer containing at least one of a vinyl group and an acrylate group.
  • 3. The ink composition for a 3D printing support according to claim 2, which further comprises a water soluble polymer.
  • 4. The ink composition for a 3D printing support according to claim 2, which further comprises a vinyl ether compound.
  • 5. The ink composition for a 3D printing support according to claim 3, which further comprises a vinyl ether compound.
  • 6. The ink composition for a 3D printing support according to claim 1, wherein the amine-containing monomer is the compound of the following Formula 1:
  • 7. The ink composition for a 3D printing support according to claim 6, wherein R2 and R3 are each independently hydrogen, methyl, ethyl, propyl, isopropyl, n-butyl, tert-butyl,
  • 8. The ink composition for a 3D printing support according to claim 6, wherein the compound of Formula 1 is the compound of the following Formula 1a:
  • 9. The ink composition for a 3D printing support according to claim 1, wherein the amine-containing monomer is the compound of the following Formula 2:
  • 10. The ink composition for a 3D printing support according to claim 9, wherein the R′1 and R′2 are each independently hydrogen, methyl, ethyl, propyl, isopropyl, n-butyl, tert-butyl,
  • 11. The ink composition for a 3D printing support according to claim 1, wherein the amine-containing monomer is the compound of the following Formula 3:
  • 12. The ink composition for a 3D printing support according to claim 1, wherein the amine-containing monomer is the compound of the following Formula 4:
  • 13. The ink composition for a 3D printing support according to claim 12, wherein the Formula 4 is
  • 14. The ink composition for a 3D printing support according to claim 1, wherein the amine-containing monomer is the compound of the following Formula 5, Formula 6 or Formula 7:
  • 15. The ink composition for a 3D printing support according to claim 2, wherein the monomer containing at least one of a vinyl group and an acrylate group is at least one selected from the group consisting of vinyl acetate, 2-hydroxyethyl(meth)acrylate, 2-hydroxymethyl(meth)acrylate, 2-hydroxypropyl(meth)acrylate, 4-hydroxybutyl(meth)acrylate, ethyl-2-hydroxyacrylate, 2-(acryloyloxy)ethyl hydrogen succinate and methacylic acid.
  • 16. The ink composition for a 3D printing support according to claim 3, wherein the water soluble polymer is at least one selected from the group consisting of the compounds of the following Formula 8a to Formula 8e:
  • 17. The ink composition for a 3D printing support according to claim 4 or claim 5, wherein the vinyl ether compound is at least one selected from the group consisting of 4-hydroxybutyl vinyl ether (HBVE), ethyl vinyl ether, butyl vinyl ether, cyclohexyl vinyl ether, 2-ethylhexyl vinyl ether, dodecyl vinyl ether, diethylene glycol divinyl ether, 1,4-cyclohexane dimethanol divinyl ether, triethylene glycol divinyl ether and 1,4-butanediol divinyl ether.
  • 18. The ink composition for a 3D printing support according to claim 1, wherein the curing agent is a photo-initiator.
  • 19. The ink composition for a 3D printing support according to claim 1, which further comprises an additive, which is at least one selected from the group consisting of a surfactant, a plasticizer, a polymerization inhibitor, an antifoaming agent, a diluent, a thermal stabilizer and a viscosity controlling agent.
  • 20. A manufacturing method for 3D printing which uses the ink composition for a 3D printing support of claim 1.
  • 21-26. (canceled)
Priority Claims (1)
Number Date Country Kind
10-2015-0102625 Jul 2015 KR national
PCT Information
Filing Document Filing Date Country Kind
PCT/KR2016/007863 7/19/2016 WO 00