阅读说明：本技术 水性白色油墨 (Aqueous white ink ) 是由 庞行行 于 2020-07-14 设计创作，主要内容包括：本发明公开了一种水性白色油墨,配方比例如下：水性树脂30％-50％、钛白粉30％-60％、蜡粉3％-10％、硬脂酸锌2％-4％、水性消泡剂1％、水性分散剂0.3％-0.7％、水性抗刮剂1％-2％、聚脂乳液2％-5％、环氧树脂12％-25％、水15％-30％。本发明的水性白色油墨味道很淡,对环境不会造成污染,夏天天气炎热也不会造成危险,同时,味道淡对现场操作人员身体减少了危害；对PET材料有很强的附着力且遮光性也很强,具有很好的市场前景。(The invention discloses a water-based white ink, which comprises the following components in percentage by weight: 30-50% of water-based resin, 30-60% of titanium dioxide, 3-10% of wax powder, 2-4% of zinc stearate, 1% of water-based defoaming agent, 0.3-0.7% of water-based dispersing agent, 1-2% of water-based anti-scraping agent, 2-5% of polyester emulsion, 12-25% of epoxy resin and 15-30% of water. The water-based white ink disclosed by the invention is light in taste, cannot pollute the environment, cannot cause danger in hot summer, and is less harmful to the bodies of field operators; has strong adhesive force and light-shielding property to PET materials, and has good market prospect.)

1. The water-based white ink is characterized by comprising the following components in percentage by weight: 30-50% of water-based resin, 30-60% of titanium dioxide, 3-10% of wax powder, 2-4% of zinc stearate, 1% of water-based defoaming agent, 0.3-0.7% of water-based dispersing agent, 1-2% of water-based anti-scraping agent, 2-5% of polyester emulsion, 12-25% of epoxy resin and 15-30% of water.

2. The preparation method of the water-based white ink according to claim 1, comprising the following specific process flows:

(1) and dispersing: adding the water-based resin, the titanium dioxide, the wax powder, the zinc stearate and the water-based dispersing agent into a dispersing machine according to the formula proportion for dispersing;

(2) and grinding: grinding the dispersed mixed material in the step (1) by using a three-roller machine;

(3) and re-dispersing: adding the mixed material ground in the step (2) into a dispersion machine again, adding a water-based defoaming agent, a water-based anti-scraping agent, polyester emulsion, epoxy resin and water, and dispersing again by using the dispersion machine;

(4) and packaging: and (4) obtaining a finished product by dispersing the materials in the step (3) again, and then filling and packaging.

3. The method for preparing water-based white ink according to claim 2, wherein the rotation speed of the disperser in the step (1) is 1000-.

4. The method for preparing an aqueous white ink according to claim 3, wherein the rotation speed of the disperser in the step (1) is 1500r/min, and the dispersing time is 10 min.

5. The method of preparing an aqueous white ink according to claim 2, wherein the step (2) is performed by grinding the mixture 3 times using a three-roll mill.

6. The method of preparing an aqueous white ink according to claim 2, wherein the rotation speed of the dispersion machine is 1000r/min and the dispersion time is 15 minutes when the re-dispersion is performed in the step (3).

7. The method for preparing an aqueous white ink according to claim 2, wherein the white ink obtained in the step (4) is diluted with water in use.

Technical Field

The invention relates to ink, in particular to water-based white ink.

Background

Ink is a substance used to form graphic and text information during printing, so the ink has different functions in printing, and directly determines the tone, color, definition and the like of an image on a printed matter. In printing we need to know the composition of the ink and the classification of the ink. As printing, paper, and other requirements become higher, the technical requirements for inks also increase.

White ink in the market at present belongs to a solvent type, and the solvent type ink has large smell and great environmental pollution and is great in harm to the body of field operators; summer weather is hot and very dangerous for solvent-based inks. Accordingly, the present invention provides an aqueous white ink.

Disclosure of Invention

The present invention is directed to an aqueous white ink that solves the problems set forth above in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

the water-based white ink comprises the following components in percentage by weight: 30-50% of water-based resin, 30-60% of titanium dioxide, 3-10% of wax powder, 2-4% of zinc stearate, 1% of water-based defoaming agent, 0.3-0.7% of water-based dispersing agent, 1-2% of water-based anti-scraping agent, 2-5% of polyester emulsion, 12-25% of epoxy resin and 15-30% of water.

In addition, the invention also provides a preparation process of the water-based white ink, which comprises the following specific process flows:

(1) and dispersing: adding the water-based resin, the titanium dioxide, the wax powder, the zinc stearate and the water-based dispersing agent into a dispersing machine according to the formula proportion for dispersing;

(2) and grinding: grinding the dispersed mixed material in the step (1) by using a three-roller machine;

(3) and re-dispersing: adding the mixed material ground in the step (2) into a dispersion machine again, adding a water-based defoaming agent, a water-based anti-scraping agent, polyester emulsion, epoxy resin and water, and dispersing again by using the dispersion machine;

(4) and packaging: and (4) obtaining a finished product by dispersing the materials in the step (3) again, and then filling and packaging.

As a further scheme of the invention: the rotating speed of the dispersing machine in the step (1) is 1000-.

As a further scheme of the invention: in the step (1), the rotating speed of the disperser is 1500r/min, and the dispersing time is 10 min.

As a still further scheme of the invention: and (3) grinding the mixed material for 3 times by using a three-roller grinding machine in the step (2).

As a still further scheme of the invention: and (4) when the dispersion is carried out again in the step (3), the rotating speed of the dispersion machine is 1000r/min, and the dispersion time is 15 minutes.

As a still further scheme of the invention: and (4) boiling the white ink finished product prepared in the step (4) with water when in use.

Compared with the prior art, the invention has the beneficial effects that:

1. the water-based white ink disclosed by the invention is light in taste, cannot pollute the environment, cannot cause danger in hot summer, and is less harmful to the bodies of field operators;

2. the water-based white ink disclosed by the invention has strong adhesive force and strong light-shading property to PET materials, and has good market prospect;

3. when the water-based white ink is used, the printing operation flow is the same as that of a solvent type, the operation is easy, the fluidity is good, the solvent type ink is operated by diluting water, and the solvent type ink needs to be diluted by a chemical solvent, so that the water-based white ink is more environment-friendly and more economical compared with the existing solvent type ink.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to specific embodiments.