阅读说明：本技术 一种基于水性油墨的绿色印刷方法 (Green printing method based on water-based ink ) 是由 孙潇 戴煦 张继军 宋效波 张伏春 于 2020-05-09 设计创作，主要内容包括：本发明公开了一种基于水性油墨的绿色印刷方法,涉及印刷工艺技术领域；为了解决图案颜色渗透；具体包括如下步骤：检查设备,对各水墨辊压力进行检查,如橡皮布松紧度,测量润版液的PH值是否符合标准,导电率、温度是否正常,油墨的湿样张颜色标准,建立相对应的湿样张颜色标准,使墨区色度数据相对于ISO标准误差△E＜1.5；将待印刷薄板进行清洁处理,然后在薄板面上喷涂一层油墨隔离液。本发明油墨隔离液使得在印刷薄板形成隔离膜后,可以有效防止印刷油墨在印刷薄板之间渗透,保持印刷图案的稳定性,采用水性油墨,无有机溶剂释放,更安全、环保,避免了油墨中稀释剂等有害成分对人体、环境造成的危害。(The invention discloses a green printing method based on water-based ink, relating to the technical field of printing processes; to address pattern color bleed-through; the method specifically comprises the following steps: the inspection equipment is used for inspecting the pressure of each ink roller, such as the tightness of a rubber blanket, measuring whether the PH value of fountain solution meets the standard, whether the conductivity and the temperature are normal, and the color standard of a wet sample sheet of ink, and establishing a corresponding color standard of the wet sample sheet, so that the chroma data of an ink area is less than 1.5 relative to the ISO standard error delta E; cleaning the thin plate to be printed, and then spraying a layer of ink isolation liquid on the surface of the thin plate. The ink spacer fluid can effectively prevent printing ink from permeating among the printing sheets after the printing sheets form the spacer film, keeps the stability of printed patterns, adopts water-based ink, has no release of organic solvent, is safer and more environment-friendly, and avoids the harm of harmful components such as thinner and the like in the ink to human bodies and the environment.)

1. A green printing method based on water-based ink is characterized by comprising the following steps:

s1: the inspection equipment is used for inspecting the pressure of each ink roller, such as the tightness of a rubber blanket, measuring whether the PH value of fountain solution meets the standard, whether the conductivity and the temperature are normal, and the color standard of a wet sample sheet of ink, and establishing a corresponding color standard of the wet sample sheet, so that the chroma data of an ink area is less than 1.5 relative to the ISO standard error delta E;

s2: cleaning a thin plate to be printed, and then spraying a layer of ink spacer fluid on the surface of the thin plate;

s3: typesetting, namely arranging the sheets stacked on the workbench to enable the side end surfaces of the stacked sheets to be level, and carrying out leveling treatment on the surfaces;

s4: hot air drying the printing sheet sprayed with the ink spacer fluid to solidify the ink spacer fluid into a film;

s5: placing the dried printing thin plate in a microwave processor for microwave curing;

s6: preparing water-based ink, transferring the printing substrate solidified by microwave to a printing device, and spraying the water-based ink on the surface of the printing substrate after positioning treatment;

s7: placing the printing sheet sprayed with the water-based ink in a hollow drying box for hollow drying treatment to finish printing;

s8: and (6) packaging.

2. A green printing method based on water-based ink according to claim 1, wherein the water-based ink is prepared in S6, a quaternary ammonium salt cationic antistatic agent is added to the water-based ink, and the mass ratio of the quaternary ammonium salt cationic antistatic agent to the water-based ink is 60: 1.

3. a green printing method based on water-based ink as claimed in claim 1, wherein the ink isolating liquid in S2 comprises the following raw material components in parts by weight: 30 parts of tripropylene glycol diacrylate, 22 parts of cetearyl ethyl hexanoate, 10 parts of sodium alginate aqueous solution, 6 parts of glycerol and 3 parts of dispersing agent.

4. A green printing method based on water-based ink as claimed in claim 3, characterized in that the drying temperature of the hot air drying in S4 is 45 ℃.

5. A green printing method based on water-based ink as claimed in claim 4, characterized in that the microwave frequency of the microwave curing in S5 is 2200MHz, the output power is 500W, and the curing time is 130 seconds.

6. A green printing method based on water-based ink as claimed in claim 5, wherein said drying process in S7 is carried out at 80 ℃ for 170 minutes.

7. A green printing method based on water-based ink as claimed in claim 2, wherein said preparation method of water-based ink formulated in S6 comprises the following steps:

s11: sequentially adding 8 parts of montmorillonite, 5 parts of barium sulfate and 40 parts of water into a dispersion kettle, and stirring and mixing to obtain a mixture A;

s12: adding 10 parts of water-based color master batch into the mixture A, and uniformly stirring and mixing to obtain a mixture B;

s13: grinding the mixture B by a three-roller grinder to prepare an inorganic premix;

s14: stirring the inorganic premix, 30 parts of polyvinyl alcohol resin, 8 parts of rosin ester, 30 parts of sodium hydroxypropyl cellulose and 5 parts of polydimethylsiloxane for 30min at the speed of 300rpm at normal temperature;

s15: filtering and discharging to obtain the water-based ink.

8. A method for green printing with water-based ink as claimed in claim 7, wherein the stirring speed in S11 is 250rpm and the stirring time is 30 min.

9. A method for green printing with water-based ink as claimed in claim 8, wherein the stirring speed in S12 is 250rpm, and the stirring time is 20 min.

10. A method for green printing with water-based ink as in claim 9 wherein said S13 abrasive particles have a size of less than 500 nm.

Technical Field

The invention relates to the technical field of printing processes, in particular to a green printing method based on water-based ink.

Background

The types of the inks on the market comprise solvent type inks and environment-friendly inks, the environment-friendly inks mainly take water-based inks, ultraviolet light curing inks and electron beam curing inks in Asia markets, wherein the water-based inks take water as a main solvent to replace high-volatility organic solvents, the water-based inks are mainly used for packaging printing inks with strict environmental protection, non-toxicity and strict specifications in food, medicine, cosmetics and the like in America, the green printing refers to the adoption of environment-friendly materials and processes, the pollution is little, resources and energy are saved in the printing process, the printed matters are easy to recycle after being discarded, can be naturally degraded, have small influence on the ecological environment, the green printing requirements are coordinated with the environment, the environment-friendly printing comprises the use of the environment-friendly printing materials, the clean printing production process, the safety of the printed matters to users, and the recycling and the recyclable printed matters, namely the printed matters are selected from raw materials, The whole life cycle of production, use, recovery and the like is in accordance with the requirement of environmental protection.

Through search, the patent with the Chinese patent application number of CN200410067996.4 discloses a double-sided printing method, which comprises the following steps: step 1, after a terminal is set to a printing mode, confirming whether the printing mode is a single-sided printing mode or a double-sided printing mode, and if the printing mode is confirmed to be the single-sided printing mode, performing single-sided printing; step 2: and (4) confirming whether the printer sends a signal for searching the double-sided printing paper or not if the double-sided printing mode is confirmed as the result confirmed in the step 1, and starting double-sided printing if the signal for double-sided printing is not received. The double-sided printing method in the above patent has the following disadvantages: during printing, the colors of the patterns printed on the two sides are mutually permeated, and the definition is low.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a green printing method based on water-based ink.

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

a green printing method based on water-based ink comprises the following steps:

s1: the inspection equipment is used for inspecting the pressure of each ink roller, such as the tightness of a rubber blanket, measuring whether the PH value of fountain solution meets the standard, whether the conductivity and the temperature are normal, and the color standard of a wet sample sheet of ink, and establishing a corresponding color standard of the wet sample sheet, so that the chroma data of an ink area is less than 1.5 relative to the ISO standard error delta E;

s2: cleaning a thin plate to be printed, and then spraying a layer of ink spacer fluid on the surface of the thin plate;

s3: typesetting, namely arranging the sheets stacked on the workbench to enable the side end surfaces of the stacked sheets to be level, and carrying out leveling treatment on the surfaces;

s4: hot air drying the printing sheet sprayed with the ink spacer fluid to solidify the ink spacer fluid into a film;

s5: placing the dried printing thin plate in a microwave processor for microwave curing;

s6: preparing water-based ink, transferring the printing substrate solidified by microwave to a printing device, and spraying the water-based ink on the surface of the printing substrate after positioning treatment;

s7: placing the printing sheet sprayed with the water-based ink in a hollow drying box for hollow drying treatment to finish printing;

s8: and (6) packaging.

Preferably: preparing water-based ink in the S6, adding a quaternary ammonium salt cationic antistatic agent into the water-based ink, wherein the mass ratio of the quaternary ammonium salt cationic antistatic agent to the water-based ink is 60: 1.

preferably: the ink isolating liquid in the S2 comprises the following raw material components in parts by weight: 30 parts of tripropylene glycol diacrylate, 22 parts of cetearyl ethyl hexanoate, 10 parts of sodium alginate aqueous solution, 6 parts of glycerol and 3 parts of dispersing agent.

Preferably: the drying temperature of the hot air drying in the S4 is 45 ℃.

Preferably: the microwave frequency of the microwave curing in the S5 is 2200MHz, the output power is 500W, and the curing time is 130 seconds.

Preferably: the treatment temperature of the hollow drying treatment in the S7 is 80 ℃, and the treatment time is 170 minutes.

Preferably: the preparation method of the water-based ink prepared in the S6 comprises the following steps:

s11: sequentially adding 8 parts of montmorillonite, 5 parts of barium sulfate and 40 parts of water into a dispersion kettle, and stirring and mixing to obtain a mixture A;

s12: adding 10 parts of water-based color master batch into the mixture A, and uniformly stirring and mixing to obtain a mixture B;

s13: grinding the mixture B by a three-roller grinder to prepare an inorganic premix;

s14: stirring the inorganic premix, 30 parts of polyvinyl alcohol resin, 8 parts of rosin ester, 30 parts of sodium hydroxypropyl cellulose and 5 parts of polydimethylsiloxane for 30min at the speed of 300rpm at normal temperature;

s15: filtering and discharging to obtain the water-based ink.

Preferably: in the S11, the stirring speed is 250rpm, and the stirring time is 30 min.

Preferably: in the S12, the stirring speed is 250rpm, and the stirring time is 20 min.

Preferably: the grain size of the grinding particles in the S13 is less than 500 nm.

The invention has the beneficial effects that: the printing ink spacer fluid makes after the printing sheet metal forms the barrier film, can prevent effectively that printing ink from permeating between the printing sheet metal, keep the stability of printing pattern, adopt water-based ink, no organic solvent releases, and is safer, the environmental protection, harmful component such as thinner in the printing ink to the harm that human body, environment caused, through technologies such as microwave solidification, make printing ink spacer fluid further combine with the printing sheet metal is firm after the drying, keep the stability of isolation layer, can finely get rid of the static of printing paper, and it is effectual to get rid of, effectual improvement production efficiency and printing yield and the rate of utilization.

Drawings

Fig. 1 is a schematic flow structure diagram of a green printing method based on water-based ink according to the present invention.

Detailed Description

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

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.