Printing base

Abstract

The printing base (10) comprises: a supporting part (1) which is a porous structure; and a functional layer (2) which is provided in contact with the supporting part (1) and comprises a plurality of resin particles (21) at least a part of the surface of which is covered with polyvinyl alcohol (22).

Description

Technical Field

[0001] The present invention relates to a printing substrate which becomes a substrate when printing with ink. Background Art

[0002] A method of manufacturing ceramic electronic components such as multilayer ceramic capacitors by printing using a 3D printer is known. During this printing, if ink bleeds, it becomes impossible to manufacture a ceramic electronic component of a desired shape.

[0003] In order to suppress such ink bleeding, Patent Document 1 describes a method in which a PVA (polyvinyl alcohol) aqueous solution is applied to the surface of a ceramic green sheet to form a PVA layer, and then printing is performed on the PVA layer using an aqueous ink whose solvent is water. According to this printing method, the aqueous ink reacts with the resin in the PVA layer to form a gel, thereby suppressing ink bleeding.

[0004] Prior Art Literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent No. 4300801 Summary of the invention

[0007] Problem that the invention aims to solve

[0008] However, the printing method described in Patent Document 1 can exhibit the ink bleeding suppression effect when using aqueous ink, but does not undergo gelation reaction when using solvent-based ink whose solvent is an organic solvent, and thus cannot exhibit the ink bleeding suppression effect.

[0009] The present invention is intended to solve the above-mentioned problem, and its object is to provide a technology capable of suppressing ink bleeding not only when aqueous ink is used as the ink for printing, but also when solvent-based ink is used as the ink for printing.

[0010] Technical solutions to solve problems

[0011] The printing base of the present invention is characterized by comprising:

[0012] The support portion is a porous structure; and

[0013] The functional layer is provided in contact with the support portion and includes a plurality of resin particles at least a portion of the surface of which is covered with polyvinyl alcohol.

[0014] Effects of the Invention

[0015] According to the printing base of the present invention, during printing, the solvent of the ink is absorbed between the resin particles in the functional layer and into the supporting portion as the porous structure, so that no matter whether the ink is water-based ink or solvent-based ink, bleeding can be suppressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a side view schematically showing the structure of a printing base in one embodiment.

[0017] Figure 2 This is a photograph of the functional layer observed using a scanning electron microscope.

[0018] Figure 3 (a) to (g) are diagrams showing various examples of the shapes of resin particles.

[0019] Figure 4 This is a flowchart for explaining an example of a method for manufacturing the print base 10 in one embodiment. DETAILED DESCRIPTION

[0020] Hereinafter, embodiments of the present invention will be shown, and features of the present invention will be described in detail.

[0021] The printing base of the present invention becomes a base when printing is performed using ink. Printing can be performed by any method to produce any article. As an example, ceramic electronic components such as stacked ceramic capacitors are produced by printing using a 3D printer on the printing base of the present invention. In the case of producing a stacked ceramic capacitor, as ink for printing, ink for dielectric layers, ink for internal electrodes, and ink for external electrodes are prepared.

[0022] Figure 1 1 is a side view schematically showing the structure of a printing base 10 in one embodiment of the present invention. The printing base 10 in one embodiment includes a support portion 1 and a functional layer 2, wherein the support portion 1 is a porous structure, and the functional layer 2 is provided in contact with the support portion 1 and includes a plurality of resin particles 21 at least a portion of the surface of which is covered with polyvinyl alcohol (hereinafter referred to as PVA) 22.

[0023] The support part 1 is a porous structure having a plurality of pores inside and on the surface, for example, a sintering sagger. The support part 1, for example, contains a material whose main component is aluminum oxide whose chemical formula can be expressed as Al2O3. As another configuration example, the support part 1 contains a material whose main component is mullite whose chemical formula is 3Al2O3-2SiO2. Mullite is a compound of aluminum oxide (Al2O3) and silicon dioxide (SiO2). As another configuration example, the support part 1 contains a material whose main component is cordierite whose chemical formula is 2MgO-2Al2O3-5SiO2. Cordierite is a compound of magnesium oxide (MgO), aluminum oxide (Al2O3) and silicon dioxide (SiO2). The support part 1 may also contain a quantity of secondary components and impurities whose characteristics remain unchanged.

[0024] like Figure 1 As shown, the plurality of resin particles 21 constituting the functional layer 2 include resin particles whose surfaces are all covered with PVA 22 and resin particles whose surfaces are partially covered with PVA 22. However, the functional layer 2 may also include resin particles whose surfaces are not covered with PVA 22. Figure 2 A photograph showing the functional layer 2 observed with a scanning electron microscope (SEM) is shown.

[0025] In this embodiment, if Figure 1 As shown in FIG. 1 , the shape of the resin particle 21 is spherical. However, the spherical shape here also includes a shape that is deformed or concave but can be regarded as a sphere as a whole. In addition, the shape of the resin particle 21 is not limited to a sphere. For example, the shape of the resin particle 21 may be a rotational ellipsoid obtained by rotating the major axis or the minor axis of the ellipse as the rotation axis (see FIG. 1 ). Figure 3 (a)), or a rectangular parallelepiped (see Figure 3 (b)), or a triangular pyramid (see Figure 3 (c)), or a tetrahedron (see Figure 3 (d)), or a cylinder (see Figure 3 (e)), or a cone (see Figure 3 (f)), or irregular shapes (refer to Figure 3 That is, the shape of the resin particles 21 is not particularly limited.

[0026] The resin particles 21 include, for example, acrylic resin, cellulose resin, polyvinyl butyral resin, etc. As an example, the resin particles 21 include methyl methacrylate-ethylene glycol dimethacrylate copolymer ({CH2C(CH3)COOCH3} m -{CH2C(CH3)COOCH2CH2OOC(CH3)CCH2} n).

[0027] PVA 22 may contain impurities such as methanol and methyl acetate.

[0028] The resin particles 21 in the functional layer 2 are connected to adjacent resin particles 21 through the PVA 22 covering the surface thereof. When the shape of the resin particles 21 is spherical, the average particle size of the resin particles 21 is, for example, 1 μm. In addition, the thickness of the functional layer 2 in the stacking direction of the support 1 and the functional layer 2 is, for example, 10 μm.

[0029] In addition, on the printing base 10 , more specifically, on the functional layer 2 , the particle size of the solid content of the ink printed is, for example, not less than 100 nm and not more than 500 nm.

[0030] When printing is performed on the printing base 10 in one embodiment, the solvent of the ink is absorbed between the resin particles 21 in the functional layer 2 and into the support portion 1 as a porous structure. Therefore, regardless of whether the ink is an aqueous ink or a solvent-based ink, the ink bleeding when using the ink containing the solvent can be suppressed.

[0031] In the conventional method for manufacturing ceramic electronic components, an unfired ceramic body is produced by printing on a printing table, and then the unfired ceramic body is peeled off from the printing table and transferred to a firing sagger. In addition, as another method, an unfired ceramic body is produced by placing an intermediate such as inkjet paper on a printing table and printing thereon, and then the inkjet paper is transferred to a firing sagger together with the unfired ceramic body. Then, the fired sagger is placed in a firing furnace for firing, thereby obtaining a ceramic electronic component.

[0032] In contrast, when the printed base 10 in one embodiment is used, printing is performed on the printed base 10 to produce an unfired ceramic body, and then the printed base 10 is placed in a firing furnace for firing, thereby obtaining a ceramic electronic component. Therefore, there is no need to transfer and place the unfired ceramic body as a printed object, so the manufacturing process becomes simple and the manufacturing time can be shortened.

[0033] (Manufacturing method of printing base)

[0034] Figure 4 This is a flowchart for explaining an example of a method for manufacturing the print base 10 in one embodiment.

[0035] In step S1, the prepared support 1 is subjected to air calcination to remove impurities. Here, an example in which a calcination sagger is used as the support 1 is described. The air calcination is performed at 950° C. for 3 hours, for example.

[0036] In step S2 following step S1, PVA is dissolved in water to prepare a PVA solution. The ratio of PVA to water in the PVA solution is, for example, PVA:water=5:95 in terms of weight %.

[0037] In step S3 following step S2, resin particles are added to the PVA solution. The ratio of the PVA solution to the resin particles is, for example, 1:1 in terms of volume %.

[0038] In step S4 following step S3, the PVA solution into which the resin particles have been added is stirred to disperse the resin particles. For example, stirring is performed using a stirrer "ARE-500" manufactured by THINKY Corporation at a rotation speed of 1000 rpm for 10 minutes.

[0039] In step S5 following step S4, the calcining sagger is immersed in the PVA solution. The calcining sagger is immersed for, for example, 2 to 3 seconds.

[0040] In step S6 following step S5, the firing sagger is lifted from the PVA solution and the sagger is left to stand until the PVA solution does not drip naturally, for example, for about 20 seconds.

[0041] In step S7 subsequent to step S6, the droplets of the PVA solution adhering to the lower part of the firing sagger are wiped off with a rag or the like, and then the sagger is left standing as it is to be dried.

[0042] Through the above steps, the printed base 10 in which the functional layer 2 is formed on the surface of the support portion 1 can be obtained.

[0043] In addition, in the above-mentioned manufacturing method, the functional layer 2 is formed on the surface of the support part 1 by immersing the sintering sagger as the support part 1 in the PVA solution containing resin particles. However, the method for forming the functional layer 2 is not limited to the immersion method. For example, the PVA solution containing resin particles can also be printed on the surface of the support part 1 by inkjet printing, dispenser printing, spray printing, screen printing, gravure printing, etc.

[0044] (Example 1)

[0045] A plurality of printing bases 10 having different thicknesses of the functional layer 2 were prepared, and their characteristics were investigated. Here, five types of printing bases 10 having different thicknesses of the functional layer 2 of 1 μm, 5 μm, 10 μm, 30 μm, and 100 μm were prepared, and the bleeding of ink, the intrusion of the solid components of the ink into the support portion 1, and the peeling of the printed matter on the functional layer 2 were investigated. The five types of printing bases 10 are printing bases 10 of the present invention having a support portion 1 and a functional layer 2. The characteristics of the five types of printing bases 10 are shown in Table 1.

[0046] [Table 1]

[0047]

[0048] In Table 1, compared with the structure without the functional layer 2, "○" which means "good" indicates a printing base having an ink bleeding suppression effect, and "◎" which means "best" indicates a printing base having a particularly high ink bleeding suppression effect. In addition, compared with the structure without the functional layer 2, "○" which means "good" indicates a printing base having less intrusion of the solid component of the ink into the support portion 1, and "◎" which means "best" indicates a printing base having particularly less intrusion of the solid component of the ink into the support portion 1. In addition, compared with the structure without the functional layer 2, "○" which means "good" indicates a printing base having less peeling of the printed matter on the functional layer 2, and "◎" which means "best" indicates a printing base having particularly less peeling of the printed matter.

[0049] As shown in Table 1, it can be confirmed that all five types of printing bases 10 having different thicknesses of the functional layer 2 have an ink bleeding suppression effect compared to a conventional printing base without the functional layer 2. In addition, it can be confirmed that the ink bleeding suppression effect is particularly high when the thickness of the functional layer 2 is 5 μm or more. Therefore, in order to further suppress ink bleeding in the printing base 10 of the present invention, the thickness of the functional layer 2 is preferably 5 μm or more.

[0050] In addition, as shown in Table 1, it can be confirmed that the five types of printing bases 10 with different thicknesses of the functional layer 2 all have less intrusion of the solid components contained in the ink into the support portion 1 than the conventional printing base without the functional layer 2. If the solid components of the ink remain in the support portion 1, the disposal of the printing base sometimes becomes complicated. For example, in the case where metal invades the support portion 1 as a solid component of the ink, if it is directly discarded, it may cause environmental problems depending on the amount of metal, etc. However, according to the printing base 10 of the present invention, the intrusion of the solid components contained in the ink into the support portion 1 can be reduced, so the occurrence of environmental problems when discarded can be suppressed.

[0051] In addition, as shown in Table 1, when the thickness of the functional layer 2 is 5 μm or more, the solid components of the ink are less likely to reach the support portion 1, and the intrusion into the support portion 1 becomes particularly small. Therefore, in order to further suppress the intrusion of the solid components of the ink into the support portion 1, the thickness of the functional layer 2 is preferably 5 μm or more.

[0052] In addition, if the unfired ceramic body is placed in a firing furnace together with the printing base 10 and fired, the resin particles 21 remain as dust. In addition, the solid components of the ink that have entered the functional layer 2 are present in the dust. Therefore, by discarding the dust, the solid components of the ink can also be discarded.

[0053] Furthermore, as shown in Table 1, it can be confirmed that the five types of printing bases 10 having different thicknesses of the functional layer 2 all have less peeling of printed matter than the conventional printing base without the functional layer 2. This is considered to be because, in the printing base 10 of the present invention, the solid components of the ink enter between the resin particles 21 in the functional layer 2, thereby producing an anchoring effect, and improving the adhesion of the printed matter to the functional layer 2. In particular, when the thickness of the functional layer 2 is 30 μm or less, the peeling of the printed matter becomes particularly small, so in order to suppress the peeling of the printed matter, it is preferable to set the thickness of the functional layer 2 to 30 μm or less.

[0054] (Example 2)

[0055] A plurality of printing bases 10 having different average particle sizes of the resin particles 21 included in the functional layer 2 were prepared, and their characteristics were investigated. Here, five types of printing bases 10 were prepared, in which the shape of the resin particles 21 was spherical and the average particle sizes were 0.8 μm, 1 μm, 1.8 μm, 5 μm, and 10 μm, respectively, and the bleeding of the ink, the intrusion of the solid components of the ink into the support portion 1, and the peeling of the printed matter on the functional layer 2 were investigated. These five types of printing bases 10 are printing bases 10 of the present invention having a support portion 1 and a functional layer 2. The characteristics of the five types of printing bases 10 are shown in Table 2. In addition, in Table 2, the meanings of "○" and "◎" of the evaluation results are the same as those in Table 1.

[0056] [Table 2]

[0057]

[0058] As shown in Table 2, it can be confirmed that all five types of printing bases 10 having different average particle sizes of the resin particles 21 have an ink bleeding suppression effect compared to the conventional printing base without the functional layer 2. In addition, it can be confirmed that the ink bleeding suppression effect is particularly high when the average particle size of the resin particles 21 is 1.8 μm or less. Therefore, in the printing base 10 of the present invention, in order to further suppress ink bleeding, the average particle size of the resin particles 21 in the functional layer 2 is preferably 1.8 μm or less.

[0059] In addition, as shown in Table 2, it can be confirmed that the five types of printing bases 10 with different average particle sizes of the resin particles 21 all have less intrusion of the solid components contained in the ink into the support portion 1 than the conventional printing base without the functional layer 2. In addition, when the average particle size of the resin particles 21 is 1.8 μm or less, the intrusion of the solid components contained in the ink into the support portion 1 becomes particularly small. Therefore, in order to further suppress the intrusion of the solid components of the ink into the support portion 1, the average particle size of the resin particles 21 is preferably 1.8 μm or less.

[0060] Furthermore, as shown in Table 2, it can be confirmed that the five types of printing bases 10 having different average particle sizes of the resin particles 21 all have less peeling of printed matter than the conventional printing base without the functional layer 2. In particular, when the average particle size of the resin particles 21 is 1 μm or more, the peeling of the printed matter becomes particularly small, so in order to further suppress the peeling of the printed matter, it is preferred that the average particle size of the resin particles 21 is set to 1 μm or more.

[0061] (Example 3)

[0062] A plurality of printed substrates 10 having different types of resin particles 21 included in the functional layer 2 were prepared, and their properties were investigated. Here, cellulose resin, polymethyl methacrylate ({CH2C(CH3)COOCH3} n ), methyl methacrylate-ethylene glycol dimethacrylate copolymer, and investigated the presence or absence of residue, low temperature reaction, burnout of the functional layer 2 at 500°C, and yield rate. In addition, polymethyl methacrylate is used as an example of an acrylic resin other than methyl methacrylate-ethylene glycol dimethacrylate copolymer. As other examples of acrylic resins other than methyl methacrylate-ethylene glycol dimethacrylate copolymer, cross-linked acrylic alkyl copolymers, methacrylate polymers, etc. can be used. These three types of printing bases 10 are printing bases 10 of the present invention having a support portion 1 and a functional layer 2. The characteristics of the three types of printing bases 10 are shown in Table 3.

[0063] [Table 3]

[0064]

[0065] Here, the so-called residue is what remains after firing and becomes useless foreign matter, so the less the better. In Table 3, a printing base that can be used despite the presence of residue is indicated as "○", and a printing base that has little residue and can be used stably is indicated as "◎".

[0066] As shown in Table 3, it can be confirmed that the three types of printing bases 10 with different types of resin particles 21 can be used despite the presence of residues. In particular, when the resin particles 21 contain methyl methacrylate-ethylene glycol dimethacrylate copolymer, the residue becomes particularly small. Therefore, in order to further reduce the residue after firing, the resin particles 21 preferably contain methyl methacrylate-ethylene glycol dimethacrylate copolymer.

[0067] In addition, if the functional layer 2 is continuously heated, a reaction in which the weight decreases rapidly occurs when the temperature rises to about 280°C. Here, this reaction is referred to as a low-temperature reaction. In the degreasing process when manufacturing ceramic electronic components, if the low-temperature reaction is poor, the shrinkage of the ceramic electronic components will be hindered, which may cause defects such as cracks. Therefore, it is preferred that the low-temperature reaction is good. In Table 3, a printed base that does not hinder the shrinkage of the ceramic electronic components and can be used although there is a deviation in the degree of low-temperature reaction is represented as "○", and a printed base that has a fast low-temperature reaction and can be used stably is represented as "◎".

[0068] As shown in Table 3, it can be confirmed that among the three types of printing bases 10 having different types of resin particles 21, there are printing bases with different degrees of low-temperature reaction, but all of them can be used. In particular, it can be confirmed that when the resin particles 21 contain polymethyl methacrylate and when the resin particles 21 contain methyl methacrylate-ethylene glycol dimethacrylate copolymer, the low-temperature reaction is good and can be used stably. Polymethyl methacrylate and methyl methacrylate-ethylene glycol dimethacrylate copolymer are a type of acrylic resin, so when the low-temperature reaction in the degreasing process when manufacturing ceramic electronic components is important, the resin particles 21 preferably contain acrylic resin.

[0069] In addition, in the firing process when manufacturing ceramic electronic components, firing is performed at a temperature of 500°C or higher. If the functional layer 2 is not burned out during firing at 500°C, it will hinder the shrinkage of the ceramic electronic component, which may cause defects such as cracks. In Table 3, the printed base that does not hinder the shrinkage of the ceramic electronic component and can be used although there is a deviation in the burnout property of the functional layer 2 when heated to 500°C is represented as "○", and the printed base that has a high burnout property and can be used stably is represented as "◎".

[0070] As shown in Table 3, it can be confirmed that among the three types of printed bases 10 having different types of resin particles 21, there are printed bases 10 with different burn-out properties of the functional layer 2, but all of them can be used. In particular, it can be confirmed that when the resin particles 21 contain polymethyl methacrylate and when the resin particles 21 contain methyl methacrylate-ethylene glycol dimethacrylate copolymer, the burn-out property of the functional layer 2 is high and can be used stably. Polymethyl methacrylate and methyl methacrylate-ethylene glycol dimethacrylate copolymer are a type of acrylic resin, so when the burn-out property of the functional layer 2 in the firing process when manufacturing ceramic electronic components is important, the resin particles 21 preferably contain acrylic resin.

[0071] The yield rate indicates the yield rate of printed products formed on the printing base 10 by printing using ink, and shows the proportion of good products without defects such as cracks among a given number (for example, 30). In Table 3, a printing base with a high yield rate and usable is represented by "○", and a printing base with a particularly high yield rate and stable use is represented by "◎".

[0072] As shown in Table 3, it can be confirmed that the three types of printing bases 10 with different types of resin particles 21 all have high yields. In particular, it can be confirmed that when the resin particles 21 contain polymethyl methacrylate and when the resin particles 21 contain methyl methacrylate-ethylene glycol dimethacrylate copolymer, the yield is high and can be used stably. Polymethyl methacrylate and methyl methacrylate-ethylene glycol dimethacrylate copolymer are a type of acrylic resin, so in order to further improve the yield of printed materials, it is preferred that the resin particles 21 contain acrylic resin.

[0073] (Example 4)

[0074] A plurality of printing bases 10 having different types of support parts 1 were prepared, and their characteristics were investigated. Here, three types of printing bases 10 were prepared, namely, a printing base in which the support part 1 of a porous structure includes Al2O3, a printing base in which the support part 1 of a porous structure includes a compound of Al2O3 and SiO2, and a printing base in which the support part 1 of a porous structure includes a compound of Al2O3, SiO2, and MgO, and the bleeding of ink, the intrusion of the solid components of ink into the support part 1, the peeling of the printed matter on the functional layer 2, the yield rate of the printed matter, the reusability of the printing base 10, and the quick-drying property of the printed matter. These three types of printing bases 10 are printing bases 10 of the present invention having a support part 1 and a functional layer 2. The characteristics of the three types of printing bases 10 are shown in Table 4.

[0075] [Table 4]

[0076]

[0077] In addition, the supporting part 1 including Al2O3 may also include an auxiliary component. Similarly, the supporting part 1 including a compound of Al2O3 and SiO2 may include an auxiliary component, and the supporting part 1 including a compound of Al2O3, SiO2 and MgO may also include an auxiliary component.

[0078] In Table 4, the evaluation methods for ink bleeding, the intrusion of ink solid components into the support portion 1, and the peeling of the printed matter on the functional layer 2 are the same as those in Table 1. The evaluation method for the yield rate of the printed matter is the same as that in Table 3. Regarding the reusability of the printing base 10, it is judged based on criteria such as whether the deformation of the printing base 10 is small, whether there are foreign matters such as solid components of the ink in the support portion 1, and whether there are ink-proof substances attached to the surface of the support portion 1. Here, a reusable printing base is represented by "○", and a printing base with particularly small deformation of the printing base 10 and particularly high reusability is represented by "◎". Regarding the quick-drying property of the printed matter, a printing base whose ink dries quickly is represented by "○", and a printing base whose ink dries particularly quickly is represented by "◎".

[0079] It can be confirmed that the three types of printing bases 10 shown in Table 4 have less ink bleeding than the printing base without the functional layer 2 and containing Al2O3. In particular, it can be seen that when the support part 1 contains a compound of Al2O3 and SiO2, and when the support part 1 contains a compound of Al2O3, SiO2 and MgO, the ink bleeding is particularly small and the effect of suppressing bleeding is high. Therefore, in the printing base 10 of the present invention, in order to further reduce the ink bleeding, it is preferred that the support part 1 contains a compound of Al2O3 and SiO2, or contains a compound of Al2O3, SiO2 and MgO.

[0080] Furthermore, it was confirmed that the three types of printing bases 10 shown in Table 4 had less intrusion of solid components contained in the ink into the support portion 1 than the conventional printing base not provided with the functional layer 2 .

[0081] In addition, it can be confirmed that the three types of printed bases 10 shown in Table 4 have less peeling of printed matter than the printed base without the functional layer 2 and containing Al2O3. In particular, when the support part 1 contains a compound of Al2O3 and SiO2, and when the support part 1 contains a compound of Al2O3, SiO2 and MgO, the peeling of printed matter is particularly small. Therefore, in order to further suppress the peeling of printed matter, it is preferred that the support part 1 contains a compound of Al2O3 and SiO2, or a compound of Al2O3, SiO2 and MgO.

[0082] In addition, it can be confirmed that the yield rate of the printed matter of the three types of printing bases 10 shown in Table 4 is high. In particular, it can be confirmed that the yield rate of the printed matter is particularly high when the support portion 1 contains a compound of Al2O3 and SiO2, and when the support portion 1 contains a compound of Al2O3, SiO2 and MgO. Therefore, in order to further improve the yield rate of the printed matter, it is preferred that the support portion 1 contains a compound of Al2O3 and SiO2, or contains a compound of Al2O3, SiO2 and MgO. In addition, when the support portion 1 contains a compound of Al2O3, SiO2 and MgO, the thermal expansion coefficient is low, so it can be considered that the influence on the printed matter during firing is small, and the yield rate is further improved.

[0083] In addition, it can be confirmed that the three types of printed bases 10 shown in Table 4 are all highly recyclable. Since the recyclability of the printed base 10 is improved, the manufacturing cost can be reduced when the printed base 10 is used to manufacture ceramic electronic components. In particular, it can be confirmed that the recyclability is particularly high when the support portion 1 contains a compound of Al2O3 and SiO2, and when the support portion 1 contains a compound of Al2O3, SiO2, and MgO. Therefore, in order to further improve the recyclability of the printed base 10, it is preferred that the support portion 1 contains a compound of Al2O3 and SiO2, or a compound of Al2O3, SiO2, and MgO.

[0084] In addition, it is considered that when the support portion 1 includes a compound of Al2O3 and SiO2, the heat resistance is high, so deformation can be suppressed during firing, and recyclability becomes particularly high. In addition, it is considered that when the support portion 1 includes a compound of Al2O3, SiO2, and MgO, the mechanical strength and thermal shock resistance become high, so deformation can be suppressed during firing, and recyclability becomes particularly high.

[0085] In addition, it can be confirmed that the quick-drying properties of the printed matter of the three types of printing bases 10 shown in Table 4 are all high. In particular, it can be confirmed that the quick-drying properties of the printed matter are particularly high when the support portion 1 contains a compound of Al2O3, SiO2, and MgO. Therefore, in order to further improve the quick-drying properties of the printed matter, it is preferred that the support portion 1 contains a compound of Al2O3, SiO2, and MgO.

[0086] Here, when printing is performed multiple times on the printing base 10 to manufacture a multi-layered product, it is necessary to print the next layer after printing corresponding to one layer and drying it. When the printing base 10 of the present invention is used, the printed material has high quick drying properties, so the time until the next layer is printed can be shortened, and the manufacturing time of the multi-layered product can be shortened.

[0087] The present invention is not limited to the above-described embodiment, and various applications and modifications can be made within the scope of the present invention.

[0088] Description of Reference Numerals

[0089] 1: Supporting part;

[0090] 2: Functional layer;

[0091] 10: Printing base;

[0092] 21: resin particles;

[0093] 22: Polyvinyl alcohol (PVA).

Claims

1. A printing base, characterized in that: have: The support part is a porous structure and a sagger; and The functional layer is provided in contact with the support portion, comprises a plurality of resin particles at least a portion of the surface of which is covered with polyvinyl alcohol, and is burned away by firing at a temperature of 500° C. or higher. The resin particles include a methyl methacrylate-ethylene glycol dimethacrylate copolymer as an acrylic resin.

2. The printing base according to claim 1, characterized in that: The support portion includes Al2O3.

3. The printing base according to claim 1, characterized in that: The support portion includes a material containing mullite as a main component.

4. The printing base according to claim 1, characterized in that: The support portion includes a material containing cordierite as a main component.

5. The printing base according to claim 1, characterized in that: The thickness of the functional layer is greater than 5 μm.

6. The printing base according to claim 1, characterized in that: The resin particles are spherical in shape and have an average particle size of 1.8 μm or less.

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