CN108276831A - A kind of foresythia ceramic ink jet oozes caul-fat ink - Google Patents

Abstract

The invention discloses a kind of foresythia ceramic ink jets to ooze caul-fat ink, is made of color development organic metal salt and solvent, color development organic metal salt is dissolved in solvent and can be converted at high temperature with bright yellow metal oxide.Organic metal salt is the salt-mixture for having praseodymium tin, organic zirconium and organic cerium, and with metal ion, the content of praseodymium is 10~12%, and the content of zirconium is 1~4%, and cerium content is 1~3%.The ink of the present invention has bright yellow decorative effect, can enrich the colour gamut that ceramics ooze caul-fat ink, keep the more rich color of the color of ink-jet polished bricks more bright-coloured.

Description

A bright yellow ceramic inkjet bleeding ink

technical field

The invention relates to the technical field of ceramic inkjet printing, in particular to a bright yellow ceramic inkjet bleeding ink.

Background technique

Polished tiles have an incomparable wear resistance than fully polished glazed tiles, but due to the polishing process of polished tiles, inkjet printing technology cannot be applied, resulting in a lack of color texture and high development costs. With the emergence of bleeding ink and related processes, polished tiles can also be covered with natural coats such as wood grain and stone on the brick surface like fully polished glazed tiles.

The ceramic bleed ink using soluble metal salt as the color body can penetrate into the interior of the tile and can be used for the decoration of polished tiles. The inkjet polished tiles produced have the three-dimensional texture of stone, the hardness of polished tiles and the naturalness of glazed tiles. The color texture has become an epoch-making ceramic tile product. Therefore, from the appearance of bleed ink in 2015, it has been promoted and applied quickly. However, the color bodies used in bleeding ink are organic metal salts. These organic metal salts are easy to chemically react with the relevant components in the polished tile fabric, and it is difficult to emit bright colors at high temperatures. This is the technology in the application process of bleeding ink. difficulty. Although Chinese patent 201510429407.0 discloses a nano-silicon oxide material, which can wrap the organic metal salt in situ during high-temperature firing, so as to ensure that the metal salt will not react with other substances and achieve stable color development of the ink, but currently The developed colors are still limited, mainly including blue, brown, yellow and black inks, so it is necessary to develop some new primary color ceramic inkjet bleeding inks to enrich the color gamut of inkjet polished tiles.

Chinese patent 201510141827.9 discloses the use of organic titanium salt and chromium salt to prepare yellow bleeding ink, but the color of the ink is a bit dark, orange, not bright enough, and the color gamut is narrow, and some intermediate colors or mixed colors need more vivid colors Only yellow can show it.

Contents of the invention

The invention overcomes the shortcomings in the prior art and provides a bright yellow ceramic inkjet bleeding ink.

In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

A bright yellow ceramic inkjet bleed ink, composed of a chromogenic organic metal salt and a solvent, the chromogenic organic metal salt is dissolved in the solvent and can be converted into a bright yellow metal oxide at high temperature, and its viscosity is 20-40mPa· s, the surface tension is 25-30mN/m, wherein the chromogenic organic metal salt is a mixed metal salt of organic praseodymium, organic zirconium and organic cerium.

Further, based on metal ions, the mass percentage of the color-forming organic metal salt is 12-16%, and the balance is solvent.

Furthermore, based on metal ions, the content of praseodymium is 10-12%, the content of zirconium is 1-4%, and the content of cerium is 1-3%.

Furthermore, the chromogenic organic metal salt is a metal organic carboxylate.

Further, the solvent is at least one of alkane solvent, ester solvent or aromatic hydrocarbon solvent.

Compared with prior art, the beneficial effect of the present invention is:

The ink of the present invention has a bright yellow color development effect and stable color development, changes the situation of the existing bleeding ink with dark yellow and orange-yellow, enriches the color gamut of the ceramic bleeding ink, and makes the color of the inkjet polished tile more vivid. Rich colors are more vibrant. The ink of the invention adopts soluble organometallic salt as the color body, can be stored for a long time, does not have the possibility of sedimentation or nozzle blockage, and has good ink-jet printing performance.

Detailed ways

Preferred embodiments of the present invention are described below, and it should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

A kind of bright yellow ceramic inkjet bleeding ink of the present invention is made up of chromogenic organic metal salt and solvent, and chromogenic organic metal salt dissolves in solvent and can be converted into bright yellow metal oxide at high temperature, and its viscosity is 20-40mPa·s, and the surface tension is 25-30mN/m, wherein the chromogenic organic metal salt is a mixed metal salt of organic praseodymium, organic zirconium and organic cerium.

Organic carboxylates in bright yellow ceramic bleed ink include but are not limited to caproate, naphthenate, caprylate, 2-ethyl-caproate, caprate, laurate, myristate , palmitate, stearate, etc.; these metal salts are soluble in organic solvents and can be converted into colored metal oxides at high temperatures; preferred are naphthenates or isooctanoates, and these compounds are commercially available Purchase or simple chemical synthesis is available.

The solvent in the bright yellow ceramic bleeding ink is at least one of alkane solvent, ester solvent or aromatic hydrocarbon solvent; wherein the alkane solvent is at least one of C10-C25 normal alkanes, isoparaffins or cycloalkanes , Ester solvents include but not limited to isopropyl caprylate, isopropyl caprate, isopropyl laurate, isopropyl myristate, isopropyl palmitate, isooctyl palmitate, isooctyl cocoate etc., the aromatic hydrocarbon solvent is isopropyl biphenyl or diisopropyl biphenyl, etc., and these solvents can be purchased directly through commerce.

The technical solutions of the present invention will be further described below in conjunction with the embodiments. In the following examples, unless otherwise specified, the content of the organic metal salt is based on the mass percentage of the metal ion.

Example 1

Wherein the viscosity of the bleeding ink is 20mPa s, and the surface tension is 25mN/m.

Example 2

Among them, the viscosity of the bleeding ink is 25mPa s, and the surface tension is 26.5mN/m.

Example 3

Among them, the viscosity of the bleeding ink is 30mPa s, and the surface tension is 30.0mN/m.

Comparative example 1

Among them, the viscosity of the bleeding ink is 28mPa s, and the surface tension is 27.8mN/m.

Comparative example 2

Metal salt and its content solvent Formula composition Praseodymium Diethylhexanoate (Pr12%) D130 solvent oil

Wherein the viscosity of the bleeding ink is 22mPa s, and the surface tension is 27.2mN/m.

The hair color experiment test of above embodiment and comparative example is carried out as follows:

1) The composition of the chromogenic surface glaze is as follows: SiO ₂ 72%, Al ₂ O ₃ 19%, MgO 0.5%, CaO 0.5%, K ₂ O 3%, Na ₂ O 5%; Also add nano-silica as a color aid, and the amount of the color aid is 4% of the quality of the surface glaze powder;

2) The inkjet printer is a hope ceramic inkjet printer, the nozzle is XAAR GS40 nozzle, prints in full grayscale, and the inkjet volume is 40g/m ² .

3) The brick firing temperature is 1210°C.

4) Test the color development effect of the ink after firing on the surface of the adobe by a Datacolor colorimeter.

The test color result of above each embodiment and comparative example is as shown in table 1:

Table 1 embodiment and comparative example test color result

L ^* a ^* b ^* color description Example 1 86.78 -4.58 36.7 Bright yellow and deep in color Example 2 84.65 -2.78 38.63 Bright yellow and deep in color Example 3 82.65 -1.82 38.12 Bright yellow and deep in color Comparative example 1 71.12 6.02 33.93 deep, dark yellow Comparative example 2 94.81 -3.15 11.75 The color is bright yellow, very light

It can be seen from the color comparison results that the ink in this embodiment has a bright yellow color development effect.

Finally, it should be noted that the above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still understand the foregoing The technical solutions recorded in each embodiment are modified, or some of the technical features are equivalently replaced, but within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included in the present invention within the scope of protection.

Claims (5)

1. a kind of foresythia ceramic ink jet oozes caul-fat ink, it is characterised in that：It is made of color development organic metal salt and solvent, color development has Machine metal salt is dissolved in solvent and can be converted into bright yellow metal oxide at high temperature, and viscosity is 20~40mPas, table Face tension is 25~30mN/m, wherein color development organic metal salt is the mixed metal salt of organic praseodymium, organic zirconium and organic cerium.

2. a kind of foresythia ceramic ink jet oozes caul-fat ink according to claim 1, it is characterised in that：With metal ion, hair The mass percentage of color organic metal salt is 12~16%, and surplus is solvent.

3. a kind of foresythia ceramic ink jet oozes caul-fat ink according to claim 1, it is characterised in that：With metal ion, praseodymium Content be 10~12%, the content of zirconium is 1~4%, and cerium content is 1~3%.

4. a kind of foresythia ceramic ink jet oozes caul-fat ink according to claim 1, it is characterised in that：Color development organic metal salt is The organic carboxylate of metal.

5. oozing caul-fat ink according to a kind of any one of Claims 1-4 foresythia ceramic ink jet, it is characterised in that：Solvent is At least one of alkane solvent, esters solvent or aromatic hydrocarbon solvent.