阅读说明：本技术 一种凹版印塑水墨及其制备方法 (Gravure plastic printing ink and preparation method thereof ) 是由 崔学忠 崔丽娟 崔润柏 于 2018-08-13 设计创作，主要内容包括：本发明适用于印刷水墨技术领域,公开了一种凹版印塑水墨,包括以下重量份的各组份：颜料21.6～32.4份,蜡粉1.04～1.56份,流平剂0.08～0.12份,水性树脂液38.4～57.6份,表面活性剂Ⅰ.2～1.8份,表面活性剂Ⅱ1.04～1.56份,无水乙醇9.44～14.16份,水7.2～10.8份。本发明还公开了一种凹版印塑水墨的制作方法,与相关技术相比,本发明一种凹版印塑水墨提高了水墨的附着力。而组份中的水性树脂液,流平剂,表面活性剂Ⅰ,表面活性剂Ⅱ可以增强耐晒性和抗紫外线性,提高水墨稳定性。利用本发明一种凹版印塑水墨的制作方法制备的凹版印塑水墨的附着力和稳定性优,减少了VOC的排放,降低了成本,提高了使用过程中的安全性。(The invention is suitable for the technical field of printing ink, and discloses gravure plastic printing ink which comprises the following components in parts by weight: 21.6-32.4 parts of pigment, 1.04-1.56 parts of wax powder, 0.08-0.12 part of flatting agent, 38.4-57.6 parts of aqueous resin liquid, 2-1.8 parts of surfactant I, 1.04-1.56 parts of surfactant II, 9.44-14.16 parts of absolute ethyl alcohol and 7.2-10.8 parts of water. The invention also discloses a manufacturing method of the gravure plastic ink, and compared with the related technology, the gravure plastic ink provided by the invention has the advantage that the adhesive force of the ink is improved. The water-based resin liquid, the leveling agent, the surfactant I and the surfactant II in the components can enhance the sun resistance and the ultraviolet resistance and improve the stability of the ink. The gravure plastic ink prepared by the preparation method of the gravure plastic ink has excellent adhesive force and stability, reduces VOC (volatile organic compounds) emission, reduces cost and improves safety in the using process.)

1. The plastic gravure ink is characterized by comprising the following components in parts by weight:

21.6 to 32.4 portions of pigment,

1.04 to 1.56 parts of wax powder,

0.08 to 0.12 part of leveling agent,

38.4 to 57.6 parts of aqueous resin solution,

1.2 to 1.8 parts of a surfactant I,

1.04 to 1.56 parts of a surfactant II,

9.44 to 14.16 parts of absolute ethyl alcohol,

7.2-10.8 parts of water.

2. The intaglio plastic printing ink according to claim 1, which comprises the following components in parts by weight:

27 parts of a pigment, namely, a pigment,

1.3 parts of wax powder,

0.1 part of a leveling agent,

48 parts of water-based resin liquid,

1.5 parts of a surfactant I,

1.3 parts of a surfactant II,

11.8 parts of absolute ethyl alcohol,

and 9 parts of water.

3. A method for making the intaglio printing plastic ink according to claim 1 or 2, comprising the steps of:

s1, stirring, namely mixing the components of the gravure plastic ink: pouring the aqueous resin liquid, the surfactant I and the surfactant II into a drawn cylinder and stirring.

S2, grinding, namely mixing the components of the gravure plastic ink: pouring the pigment and the wax powder into a drawn cylinder for stirring, pouring the mixture obtained after stirring into a grinder for grinding, and stopping grinding after the fineness of the mixture is qualified.

S3, stirring and dispersing, wherein the gravure plastic ink comprises the following components in parts by weight: and pouring the mixture of the leveling agent, the absolute ethyl alcohol, the water and the S2 into a pulling cylinder, and stirring and dispersing.

S4, filtration, and filtration of the mixed solution obtained in S3.

And S5, warehousing, and barreling and warehousing the qualified mixed liquid obtained in the step S4.

4. The method for preparing an intaglio printing plastic ink according to claim 3, wherein in step S1, the components of the intaglio printing plastic ink are as follows: pouring the aqueous resin liquid, the surfactant I and the surfactant II into a drawn cylinder for stirring, wherein the stirring time lasts for 12-18 minutes, and the stirring speed is 550-650 revolutions per minute.

5. The method for preparing the plastic ink for intaglio printing according to the claim 3, wherein in the step S2, the pigment and the wax powder which are the components of the plastic ink for intaglio printing are poured into a drawn cylinder and stirred for 25-35 minutes.

6. The method for preparing an intaglio printing plastic ink according to claim 3, wherein in step S1, the components of the intaglio printing plastic ink are as follows: pouring the aqueous resin liquid, the surfactant I and the surfactant II into a drawn cylinder, and stirring for 15 minutes at the stirring speed of 600 revolutions per minute.

7. The method of claim 3, wherein the ingredients of the gravure ink and the wax powder are poured into a drawn jar and stirred for 30 minutes in step S2.

8. The method of claim 3, wherein in step S3, the leveling agent is dissolved completely in the solvent before the mixture of the components of the gravure ink, the absolute ethyl alcohol, the water and the mixture obtained in step S2 are poured into the pulling jar and stirred for dispersion.

9. The method of claim 3, wherein in step S5, the mixed solution obtained in step S4 is tested, and the standard for passing the test is: the viscosity of the No. 3 cup is 31-35 ℃, and the time is 24-28 seconds.

10. The method of claim 3, wherein in step S5, the mixed solution obtained in step S4 is tested, and the standard for passing the test is: viscosity # 3 cup, temperature 33 ℃, time 26 seconds.

Technical Field

The invention belongs to the technical field of printing ink, and particularly relates to gravure plastic printing ink and a preparation method thereof.

Background

In the printing of the soft packaging material of the plastic film, a gravure printing process is generally adopted, and the performance of the ink used in the printing is directly related to the safety and sanitation of the product and whether the product meets the environmental protection standard or not.

Because the organic solvent residue in the traditional solvent-based ink is easy to penetrate through a film to cause the pollution of a packaged object, meanwhile, most of the organic solvent in the ink is inevitably volatilized to the sky in the printing process by using the solvent-based ink to cause air pollution, and meanwhile, the organic solvent in the ink is easy to cause harm to the health of a printer. Therefore, as society develops, conventional inks are gradually replaced. Development and application of green and environment-friendly gravure printing ink meeting the environment-friendly requirement will become a necessary trend, and in the related art, chinese patent application No. 201110165900.8 discloses a water ink for flexible packaging gravure printing, which is characterized in that: the weight components are as follows: 20-25 parts of color paste, 30-60 parts of binder resin, 10-30 parts of water, 1-5 parts of bactericide and 1-5 parts of wax liquid; the color paste comprises the following components in parts by mass: 10-40 parts of water, 20-60 parts of water-based pigment, 1-5 parts of dispersing agent, 1-5 parts of defoaming agent and 10-30 parts of grinding resin. The related technology has the defects that the water ink for the gravure printing of the flexible package has low adhesive force, so that the printing effect is unstable, and the printing requirement is difficult to meet.

Therefore, there is a need to provide a new gravure plastic ink and a preparation method thereof to solve the above technical problems.

Disclosure of Invention

The embodiment of the invention provides gravure plastic printing ink and a preparation method thereof, aiming at solving the technical problems mentioned in the background technology.

The embodiment of the invention is realized in such a way that the gravure plastic printing ink comprises the following components in parts by weight:

21.6 to 32.4 portions of pigment,

1.04 to 1.56 parts of wax powder,

0.08 to 0.12 part of leveling agent,

38.4 to 57.6 parts of aqueous resin solution,

1.2 to 1.8 parts of a surfactant I,

1.04 to 1.56 parts of a surfactant II,

9.44 to 14.16 parts of absolute ethyl alcohol,

7.2-10.8 parts of water.

The embodiment of the invention also provides a manufacturing method of the gravure plastic ink, which comprises the following steps:

s1, stirring, namely mixing the components of the gravure plastic ink: pouring the aqueous resin liquid, the surfactant I and the surfactant II into a drawn cylinder and stirring.

S2, grinding, namely mixing the components of the gravure plastic ink: pouring the pigment and the wax powder into a drawn cylinder for stirring, pouring the mixture obtained after stirring into a grinder for grinding, and stopping grinding after the fineness of the mixture is qualified.

S3, stirring and dispersing, wherein the gravure plastic ink comprises the following components in parts by weight: and pouring the mixture of the leveling agent, the absolute ethyl alcohol, the water and the S2 into a pulling cylinder, and stirring and dispersing.

S4, filtration, and filtration of the mixed solution obtained in S3.

And S5, warehousing, and barreling and warehousing the qualified mixed liquid obtained in the step S4.

Compared with the prior art, the leveling agent in the components of the gravure plastic ink can effectively reduce the surface tension, increase the surface adhesive force and improve the adhesive force of the ink. The water-based resin liquid, the leveling agent, the surfactant I and the surfactant II in the components can enhance the sun resistance and the ultraviolet resistance and improve the stability of the ink. The components in the gravure plastic printing ink are used as a complete technical scheme, and are acted together and influenced mutually. The adhesive force and the stability of the gravure plastic printing ink are improved. The gravure plastic ink prepared by the preparation method of the gravure plastic ink has excellent adhesive force and stability, reduces VOC (volatile organic compounds) emission, reduces cost and improves safety in the using process.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.