阅读说明：本技术 一种纸箱的环保印刷工艺 (Environment-friendly printing process for carton ) 是由 陈正 刘昭 周亮亮 于 2021-07-14 设计创作，主要内容包括：本发明公开了一种纸箱的环保印刷工艺,包括以下步骤：图案确定-纸箱清洁-纸箱预处理-油墨制备-印刷-固色成型-烘干消毒-覆膜-打包储存最终即得到产品,本发明工艺合理,这样不仅可以防止纸箱受潮褪色,提高纸箱使用寿命,还防止了油墨污染环境,提高了环保性和印刷质量。(The invention discloses an environment-friendly printing process of a carton, which comprises the following steps: the method has the advantages that the process is reasonable, so that the paper box can be prevented from being damped and faded, the service life of the paper box is prolonged, the environment is prevented from being polluted by the printing ink, and the environmental protection and the printing quality are improved.)

1. The environment-friendly printing process of the carton is characterized in that: the method comprises the following steps:

s1: pattern determination:

designing and drawing the patterns to be printed on the carton by a computer, and guiding the patterns into printing equipment;

s2: carton box cleaning:

flattening the surface of the carton by using an extrusion roller, removing dust on the surface of the carton by using a dust collector, spraying a cleaning agent on the printing surface of the carton to wipe the surface of the carton after removing the dust, and drying the surface of the carton by using a dryer at the drying temperature of 90-100 ℃ for 5-8 min;

s3: carton pretreatment:

coating waterproof paint on the surface of the carton treated in the step S2, and drying to form a film, wherein the coating thickness is 0.5-1mm, the drying temperature is 60-70 ℃, and the drying time is 6-8 min;

s4: preparing ink:

the ink is acrylic resin water-based ink, the main components of which comprise 6-8 parts of acrylic resin, 2-3 parts of triethylamine, 1-2 parts of ethanolamine, 3-4 parts of 2-amino-2-methyl-1-propanol, 2-3 parts of absolute ethyl alcohol, 3-4 parts of maleic acid, 2-3 parts of p-phenylenediamine and 1-3 parts of aluminum stearate, and the ink is stirred by a stirrer for 8-10min at the stirring temperature of 40-60 ℃;

s5: printing:

adding the ink in the step S4 into a flexographic printing machine, and printing the pattern in the step S1 on the carton treated in the step S3 by using the flexographic printing machine, wherein the printing speed is 1-3m/min, and the printing breadth is 30-40 cm;

s6: fixation and forming:

irradiating the printed carton in the step S5 for 30-40min by using an ultraviolet lamp, and placing the carton in a freezing room for freezing and storing, wherein the freezing temperature is-5 to-15 ℃, and the freezing time is 60-70 min;

s7: drying and sterilizing:

drying and disinfecting the paper box treated in the step S6 through a dryer, wherein the drying temperature is 80-100 ℃, and the drying time is 30-60 min;

s8: film covering:

laminating the surface of the carton pattern treated in the step S7 by using a laminating machine in a hot pressing manner, wherein the hot pressing temperature is 60-80 ℃;

s9: packaging and storing:

and (5) packaging and storing the cartons processed in the step S8 for later use.

2. The environmentally friendly printing process for cartons as claimed in claim 1, wherein: the main components of the cleaning agent in the step S2 are 50-60 parts of water, 10-15 parts of alcohol, 5-9 parts of sodium bicarbonate and 7-9 parts of sodium tripolyphosphate.

3. The environmentally friendly printing process for cartons as claimed in claim 1, wherein: and the waterproof coating in the step S3 is oxidized polyethylene wax.

4. The environmentally friendly printing process for cartons as claimed in claim 1, wherein: the angle between the doctor blade and the anilox roller of the flexographic printing machine in the step S5 is 42 to 55 °.

5. The environmentally friendly printing process for cartons as claimed in claim 1, wherein: and in the step S8, hot-pressing and laminating to form a film protective film.

Technical Field

The invention belongs to the technical field of carton printing, and particularly relates to an environment-friendly printing process for a carton.

Background

The paper box is the most widely used packaging product, and comprises a corrugated paper box, a single-layer paper box and the like according to different materials, and has various specifications and models, the common paper box comprises three layers and five layers, seven layers are used less, each layer is divided into inner paper, corrugated paper, core paper and surface paper, the inner paper and the surface paper comprise tea board paper and kraft paper, the core paper is corrugated paper, the color and the hand feeling of various kinds of paper are different, and the paper produced by different manufacturers is also different.

Certainly along with the more and more extensive quilt of carton, people also improve gradually to the requirement of carton extranal packing, and the aesthetic feeling of packing is improved through printing pattern or color on the carton again to mostly to satisfy people's requirement, when printing the pattern, printing ink not only can the polluted environment, and still wet the fading easily after printing in addition, shorten the carton life-span, the wasting of resources.

Disclosure of Invention

The invention aims to provide an environment-friendly printing process for a carton, which aims to solve the problems that the traditional carton printing patterns are easy to be affected with damp and fade, the service life of the carton is shortened, ink is easy to pollute the environment and the like.

The invention realizes the purpose through the following technical scheme: the invention provides an environment-friendly printing process for a carton, which comprises the following steps:

s1: pattern determination:

designing and drawing the patterns to be printed on the carton by a computer, and guiding the patterns into printing equipment;

s2: carton box cleaning:

flattening the surface of the carton by using an extrusion roller, removing dust on the surface of the carton by using a dust collector, spraying a cleaning agent on the printing surface of the carton to wipe the surface of the carton after removing the dust, and drying the surface of the carton by using a dryer at the drying temperature of 90-100 ℃ for 5-8 min;

s3: carton pretreatment:

coating waterproof paint on the surface of the carton treated in the step S2, and drying to form a film, wherein the coating thickness is 0.5-1mm, the drying temperature is 60-70 ℃, and the drying time is 6-8 min;

s4: preparing ink:

the ink is acrylic resin water-based ink, the main components of which comprise 6-8 parts of acrylic resin, 2-3 parts of triethylamine, 1-2 parts of ethanolamine, 3-4 parts of 2-amino-2-methyl-1-propanol, 2-3 parts of absolute ethyl alcohol, 3-4 parts of maleic acid, 2-3 parts of p-phenylenediamine and 1-3 parts of aluminum stearate, and the ink is stirred by a stirrer for 8-10min at the stirring temperature of 40-60 ℃;

s5: printing:

adding the ink in the step S4 into a flexographic printing machine, and printing the pattern in the step S1 on the carton treated in the step S3 by using the flexographic printing machine, wherein the printing speed is 1-3m/min, and the printing breadth is 30-40 cm;

s6: fixation and forming:

irradiating the printed carton in the step S5 for 30-40min by using an ultraviolet lamp, and placing the carton in a freezing room for freezing and storing, wherein the freezing temperature is-5 to-15 ℃, and the freezing time is 60-70 min;

s7: drying and sterilizing:

drying and disinfecting the paper box treated in the step S6 through a dryer, wherein the drying temperature is 80-100 ℃, and the drying time is 30-60 min;

s8: film covering:

laminating the surface of the carton pattern treated in the step S7 by using a laminating machine in a hot pressing manner, wherein the hot pressing temperature is 60-80 ℃;

s9: packaging and storing:

and (5) packaging and storing the cartons processed in the step S8 for later use.

Further, in the step S2, the main components of the cleaning agent are 50-60 parts of water, 10-15 parts of alcohol, 5-9 parts of sodium bicarbonate and 7-9 parts of sodium tripolyphosphate, so that the surface of the carton can be cleaned conveniently, and the carton can be dried conveniently.

Further, the waterproof coating in the step S3 is oxidized polyethylene wax, which can play a waterproof role in the carton and can resist high temperature.

Further, the angle between the doctor blade and the anilox roller of the flexographic printing machine in the step S5 is 42 to 55 °, so that the printing effect can be improved.

Further, in the step S8, a film is hot-pressed to form a film protective film.

Has the advantages that: the invention has simple process, convenient operation and convenient batch production and use, the cleaning of the paper box can improve the adhesion effect of the printing ink and ensure the printing effect, the coating of the waterproof coating can prevent the paper box from being affected with damp and damaged, the service life of the paper box is prolonged, the printing ink adopts the acrylic resin water-based printing ink to improve the environmental protection property of the printing ink and reduce the pollution of the printing ink to the environment, the flexographic printing machine can improve the printing quality and ensure the printing effect, the color fixation of the printing ink on the paper box can be accelerated by the irradiation of the ultraviolet lamp and the freezing storage, the drying and the disinfection can reduce the harmful substances attached to the surface of the printing ink and improve the use safety of the paper box, carry out the tectorial membrane to the pattern surface and can prevent that the pattern from weing and fading, increase carton life, not only can prevent like this that the carton from weing and fading, improve carton life, still prevented printing ink polluted environment, improved feature of environmental protection and printing quality.

Drawings

FIG. 1 is a process flow diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Example 1: an environmentally friendly printing process for cartons as shown in fig. 1, comprising the steps of:

s1: pattern determination:

designing and drawing the patterns to be printed on the carton by a computer, and guiding the patterns into printing equipment;

s2: carton box cleaning:

flattening the surface of the carton by using an extrusion roller, removing dust on the surface of the carton by using a dust collector, spraying a cleaning agent on the printing surface of the carton to wipe the surface of the carton after removing the dust, and drying the surface of the carton by using a dryer at the drying temperature of 90 ℃ for 5 min;

s3: carton pretreatment:

coating waterproof paint on the surface of the carton treated in the step S2, and drying to form a film, wherein the coating thickness is 0.5mm, the drying temperature is 60 ℃, and the drying time is 6 min;

s4: preparing ink:

the ink is acrylic resin water-based ink, the main components of the ink comprise 6 parts of acrylic resin, 2 parts of triethylamine, 1 part of ethanolamine, 3 parts of 2-amino-2-methyl-1-propanol, 2 parts of absolute ethyl alcohol, 3 parts of maleic acid, 2 parts of p-phenylenediamine and 1 part of aluminum stearate, the ink is stirred by a stirrer for 8min, and the stirring temperature is 40 ℃;

s5: printing:

adding the ink in the step S4 into a flexographic printing machine, and printing the pattern in the step S1 on the carton treated in the step S3 by using the flexographic printing machine, wherein the printing speed is 1m/min, and the printing breadth is 30 cm;

s6: fixation and forming:

irradiating the printed carton in the step S5 for 30min by using an ultraviolet lamp, and putting the carton into a freezing room for freezing and storing, wherein the freezing temperature is-15 ℃, and the freezing time is 60 min;

s7: drying and sterilizing:

drying and disinfecting the paper box treated in the step S6 through a dryer, wherein the drying temperature is 80 ℃, and the drying time is 30 min;

s8: film covering:

hot-pressing film covering is carried out on the surface of the carton pattern processed in the step S7 by using a film covering machine, and the hot-pressing temperature is 60 ℃;

s9: packaging and storing:

and (5) packaging and storing the cartons processed in the step S8 for later use.

The main components of the cleaning agent in the step S2 are 50 parts of water, 10 parts of alcohol, 5 parts of sodium bicarbonate and 7 parts of sodium tripolyphosphate, so that the surface of a carton can be cleaned conveniently and dried conveniently, the waterproof coating in the step S3 is oxidized polyethylene wax which can play a waterproof role in the carton and can resist high temperature, the angle between a doctor blade and an anilox roller of a flexographic printing machine in the step S5 is 42 degrees, the printing effect can be improved, and the hot-pressing film in the step S8 is a film protective film.

Example 2:

s1: pattern determination:

designing and drawing the patterns to be printed on the carton by a computer, and guiding the patterns into printing equipment;

s2: carton box cleaning:

flattening the surface of the carton by using an extrusion roller, removing dust on the surface of the carton by using a dust collector, spraying a cleaning agent on the printing surface of the carton to wipe the surface of the carton after removing the dust, and drying the surface of the carton by using a dryer at the drying temperature of 95 ℃ for 6 min;

s3: carton pretreatment:

coating waterproof paint on the surface of the carton treated in the step S2, and drying to form a film, wherein the coating thickness is 0.8mm, the drying temperature is 65 ℃, and the drying time is 7 min;

s4: preparing ink:

the ink is acrylic resin water-based ink, the main components of which comprise 7 parts of acrylic resin, 2.5 parts of triethylamine, 1.5 parts of ethanolamine, 3.5 parts of 2-amino-2-methyl-1-propanol, 2.5 parts of absolute ethyl alcohol, 3.5 parts of maleic acid, 2.5 parts of p-phenylenediamine and 2 parts of aluminum stearate, and the ink is stirred by a stirrer for 9min at the stirring temperature of 50 ℃;

s5: printing:

adding the ink in the step S4 into a flexographic printing machine, and printing the pattern in the step S1 on the carton treated in the step S3 by using the flexographic printing machine, wherein the printing speed is 2m/min, and the printing breadth is 35 cm;

s6: fixation and forming:

irradiating the printed carton in the step S5 for 35min by using an ultraviolet lamp, and putting the carton into a freezing room for freezing and storing, wherein the freezing temperature is-10 ℃, and the freezing time is 65 min;

s7: drying and sterilizing:

drying and disinfecting the paper box treated in the step S6 through a dryer, wherein the drying temperature is 90 ℃, and the drying time is 50 min;

s8: film covering:

laminating the surface of the carton pattern processed in the step S7 by using a laminating machine in a hot pressing mode, wherein the hot pressing temperature is 70 ℃;

s9: packaging and storing:

and (5) packaging and storing the cartons processed in the step S8 for later use.

The main components of the cleaning agent in the step S2 are 55 parts of water, 13 parts of alcohol, 7 parts of sodium bicarbonate and 8 parts of sodium tripolyphosphate, so that the surface of a carton can be cleaned conveniently and dried conveniently, the waterproof coating in the step S3 is oxidized polyethylene wax which can play a waterproof role in the carton and can resist high temperature, the angle between a doctor blade and an anilox roller of a flexographic printing machine in the step S5 is 50 degrees, the printing effect can be improved, and the hot-pressing film in the step S8 is a film protective film.

Example 3:

s1: pattern determination:

designing and drawing the patterns to be printed on the carton by a computer, and guiding the patterns into printing equipment;

s2: carton box cleaning:

flattening the surface of the carton by using an extrusion roller, removing dust on the surface of the carton by using a dust collector, spraying a cleaning agent on the printing surface of the carton to wipe the surface of the carton after removing the dust, and drying the surface of the carton by using a dryer at the drying temperature of 100 ℃ for 8 min;

s3: carton pretreatment:

coating waterproof paint on the surface of the carton treated in the step S2, and drying to form a film, wherein the coating thickness is 1mm, the drying temperature is 70 ℃, and the drying time is 8 min;

s4: preparing ink:

the ink is acrylic resin water-based ink, the main components of the ink comprise 8 parts of acrylic resin, 3 parts of triethylamine, 2 parts of ethanolamine, 4 parts of 2-amino-2-methyl-1-propanol, 3 parts of absolute ethyl alcohol, 4 parts of maleic acid, 3 parts of p-phenylenediamine and 3 parts of aluminum stearate, and the ink is stirred by a stirrer for 10min at the stirring temperature of 60 ℃;

s5: printing:

adding the ink in the step S4 into a flexographic printing machine, and printing the patterns in the step S1 on the carton treated in the step S3 by using the flexographic printing machine, wherein the printing speed is 3m/min, and the printing breadth is 40 cm;

s6: fixation and forming:

irradiating the printed carton in the step S5 for 40min by using an ultraviolet lamp, and placing the carton in a freezing room for freezing and storing, wherein the freezing temperature is minus 5 ℃, and the freezing time is 70 min;

s7: drying and sterilizing:

drying and disinfecting the paper box treated in the step S6 through a dryer, wherein the drying temperature is 100 ℃, and the drying time is 60 min;

s8: film covering:

hot-pressing film covering is carried out on the surface of the carton pattern processed in the step S7 by using a film covering machine, and the hot-pressing temperature is 80 ℃;

s9: packaging and storing:

and (5) packaging and storing the cartons processed in the step S8 for later use.

The main components of the cleaning agent in the step S2 are 60 parts of water, 15 parts of alcohol, 9 parts of sodium bicarbonate and 9 parts of sodium tripolyphosphate, the surface of a carton is convenient to clean and dry, the waterproof coating in the step S3 is oxidized polyethylene wax which can play a waterproof role in the carton and can resist high temperature, the angle between a doctor blade and an anilox roller of a flexographic printing machine in the step S5 is 55 degrees, the printing effect can be improved, and the hot-pressing film in the step S8 is a film protective film.

Step S4 in example one, example two, and example three was compared and is tabulated as follows:

the softening effect of the prepared product is observed, and the secondary effect of the embodiment is found to be optimal

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.