阅读说明：本技术 一种彩色瓦楞纸的染色方法 (Dyeing method of colored corrugated paper ) 是由 李昌斌 于 2019-08-13 设计创作，主要内容包括：本发明公开了一种彩色瓦楞纸的染色方法,属于瓦楞纸染色技术领域,包括如下步骤：(1)瓦楞纸预处理；(2)一次涂布处理；(3)冷等离子体处理；(4)二次涂布处理；(5)微波处理；(6)表面喷覆处理。本发明提供了一种彩色瓦楞纸的染色方法,在现今瓦楞纸染色方法上做了很大程度的改进,有效的提高了瓦楞纸染色的效率,保障了瓦楞纸的综合性能的稳定性,提升了彩色瓦楞纸的品质,从很大程度上拓宽了瓦楞纸的应用范围。(The invention discloses a method for dyeing color corrugated paper, which belongs to the technical field of corrugated paper dyeing and comprises the following steps: (1) preprocessing corrugated paper; (2) primary coating treatment; (3) performing cold plasma treatment; (4) secondary coating treatment; (5) microwave treatment; (6) and (5) performing surface spraying treatment. The invention provides a method for dyeing color corrugated paper, which is improved to a great extent on the existing corrugated paper dyeing method, effectively improves the efficiency of corrugated paper dyeing, ensures the stability of the comprehensive performance of the corrugated paper, improves the quality of the color corrugated paper, and widens the application range of the corrugated paper to a great extent.)

1. The dyeing method of the colorful corrugated paper is characterized by comprising the following steps:

(1) pretreatment of corrugated paper:

placing the corrugated paper to be dyed on a GJ-1.5 type high-frequency high-voltage high-power electron accelerator for electron beam irradiation treatment, and taking out for later use after the irradiation treatment is carried out for 6 ~ 8 min;

(2) primary coating treatment:

uniformly coating the dyeing liquid on the front and back surfaces of the corrugated paper pretreated in the step (1), drying the corrugated paper under a vacuum condition, and taking out the corrugated paper for later use;

(3) cold plasma treatment:

placing the corrugated paper subjected to the primary coating treatment in the step (2) in an HD-1B type RF cold plasma, treating the corrugated paper with the cold plasma for 2 ~ 3min, and taking out the corrugated paper for later use;

(4) secondary coating treatment:

uniformly coating the dyeing solution on the front and back surfaces of the corrugated paper subjected to cold plasma treatment in the step (3), drying under a vacuum condition, and taking out for later use;

(5) microwave treatment:

placing the corrugated paper subjected to the secondary coating treatment in the step (4) in a microwave environment with specific power, performing microwave treatment for 4 ~ 6min, and taking out for later use;

(6) surface spraying treatment:

and (5) uniformly spraying a layer of treating agent on the front surface and the back surface of the corrugated paper subjected to the microwave treatment in the step (5), and air-drying in a natural environment.

2. A process of making a color corrugated paper as defined in claim 1The dyeing method is characterized in that the dosage of the electron beam irradiation treatment in the step (1) is 3.2 ~ 3.6 multiplied by 10³rad/s。

3. The method for dyeing the colored corrugated paper according to claim 1, wherein the preparation method of the dyeing solution in the step (2) and the step (4) comprises the steps of a, weighing 19 ~ 21% of epoxy resin, 2 ~ 3% of ceramic powder, 1 ~ 2% of nano silicon dioxide, 5 ~ 7% of D-mannitol, 5 ~ 7% of propylene glycol alginate soybean lecithin, 201 ~ 2% of Tween and the balance of deionized water according to the corresponding weight percentage, uniformly mixing, putting the mixture into a stirring tank, stirring at a high temperature, taking out the mixture for standby after 2 ~ 3 hours of stirring treatment, b, putting the mixture obtained in the operation a and the dye into a microfluidics high-pressure homogenizer for homogenizing treatment according to the weight ratio of 34 ~ 36:1 ~ 2, and performing ultrasonic degassing after the homogenizing treatment.

4. The method for dyeing the colorful corrugated paper as claimed in claim 3, wherein the temperature during stirring under high temperature in operation a is controlled to be 160 ~ 180 ℃, and the stirring speed is 500 ~ 800 rpm.

5. The method for dyeing the colorful corrugated paper as claimed in claim 3, wherein the working pressure of the microfluid high-pressure homogenizer in the homogenizing process in the operation b is 70 ~ 90 MPa.

6. The method for dyeing the colorful corrugated paper as claimed in claim 1, wherein the vacuum degree of the vacuum drying in the step (2) is 89 ~ 93kPa, and the drying temperature is 60 ~ 70 ℃.

7. The method for dyeing the colored corrugated paper as claimed in claim 1, wherein the power for the cold plasma treatment in the step (3) is 200 ~ 400W.

8. The method for dyeing the colorful corrugated paper as claimed in claim 1, wherein the vacuum degree of the vacuum drying in the step (4) is 98 ~ 100kPa, and the drying temperature is 40 ~ 50 ℃.

9. The method for dyeing the colored corrugated paper as claimed in claim 1, wherein the microwave treatment in the step (5) has a power of 400 ~ 600W.

10. The method for dyeing the colored corrugated paper as claimed in claim 1, wherein the treating agent in the step (6) comprises, by weight, trimethylolpropane-tris (3-aziridinyl) propionate 3 ~ 5%, dimethylol dihydroxy ethylene urea 1 ~ 2%, fulvic acid 8 ~ 10%, and the balance of deionized water.

Technical Field

The invention belongs to the technical field of corrugated paper dyeing, and particularly relates to a dyeing method of colored corrugated paper.

Background

Corrugated cardboard not only has good elasticity, but also greatly enhances the strength and stiffness, and the cartons and cartons made of the corrugated cardboard have many advantages in transportation and storage compared with traditional wooden boxes and metal drums, such as light weight, recyclability, low cost and the like, so that the packaging of products serving as circulating commodities is widely applied to the packaging field, and forms a huge industry in the world.

The application numbers are: CN201910314225.7 discloses a corrugated paper dyeing device, wherein a driving space is arranged in a dyeing box, a driving mechanism is arranged in the driving space, the driving mechanism comprises a driving motor, the driving motor is in power connection with a driving shaft, a first bevel gear is arranged on the driving shaft, and second bevel gears are symmetrically arranged at the left end and the right end of the first bevel gear; in the working process of the invention, the stirring wheel is matched with the rotating plate, so that the high-efficiency stirring can be realized, the block adding dyeing efficiency is realized, and simultaneously, the liquid in the corrugated paper can be automatically extruded after the completion, so that the operation steps are simplified, the aim of repeatedly utilizing the dyeing liquid or the cleaning liquid is fulfilled through the matching of the circulating mechanism, the raw material or the water resource is saved, and the device can automatically perform repeated automatic dyeing and cleaning on the corrugated paper as required, thereby improving the dyeing quality and reducing the actual operation steps of workers. Obviously, the invention improves the dyeing quality and reduces the labor by improving the dyeing device to carry out multiple times of automatic dyeing and cleaning, has great limitation on the improvement of the corrugated paper dyeing efficiency, and has a plurality of factors which influence the dyeing, and the combination of the factors not only of the dyeing device, but also of the properties of the corrugated paper, the properties of additives in the dyeing liquid and physical methods can obviously influence the dyeing of the corrugated paper. Therefore, it is necessary to develop and research a more efficient dyeing method for color corrugated paper.

Disclosure of Invention

The invention aims to provide a method for dyeing color corrugated paper aiming at the existing problems.

The invention is realized by the following technical scheme:

a dyeing method of colorful corrugated paper comprises the following steps:

(1) pretreatment of corrugated paper:

placing the corrugated paper to be dyed on a GJ-1.5 type high-frequency high-voltage high-power electron accelerator for electron beam irradiation treatment, and taking out for later use after the irradiation treatment is carried out for 6 ~ 8 min;

(2) primary coating treatment:

uniformly coating the dyeing liquid on the front and back surfaces of the corrugated paper pretreated in the step (1), drying the corrugated paper under a vacuum condition, and taking out the corrugated paper for later use;

(3) cold plasma treatment:

placing the corrugated paper subjected to the primary coating treatment in the step (2) in an HD-1B type RF cold plasma, treating the corrugated paper with the cold plasma for 2 ~ 3min, and taking out the corrugated paper for later use;

(4) secondary coating treatment:

uniformly coating the dyeing solution on the front and back surfaces of the corrugated paper subjected to cold plasma treatment in the step (3), drying under a vacuum condition, and taking out for later use;

(5) microwave treatment:

placing the corrugated paper subjected to the secondary coating treatment in the step (4) in a microwave environment with specific power, performing microwave treatment for 4 ~ 6min, and taking out for later use;

(6) surface spraying treatment:

and (5) uniformly spraying a layer of treating agent on the front surface and the back surface of the corrugated paper subjected to the microwave treatment in the step (5), and air-drying in a natural environment.

Further, the dose of the electron beam irradiation treatment in the step (1) is 3.2 ~ 3.6.6 × 10³rad/s。

Further, the preparation method of the dyeing liquid in the step (2) and the step (4) comprises the steps of a, weighing 19 ~ 21% of epoxy resin, 2 ~ 3% of ceramic powder, 1 ~ 2% of nano silicon dioxide, 5 ~ 7% of D-mannitol, 5 ~ 7% of propylene glycol alginate soybean lecithin, 5 ~% of tween 201 ~ 2% and the balance deionized water according to the corresponding weight percentage, uniformly mixing, putting into a stirring tank, stirring at a high temperature, stirring for 2 ~ 3 hours, taking out the mixture for later use, b, putting the mixture obtained in the operation a and the dye into a micro-jet high-pressure homogenizer together according to the weight ratio of 34 ~ 36:1 ~ 2 for homogenization, and performing ultrasonic degassing after homogenization.

Further, the temperature during stirring under high temperature conditions in the operation a is controlled to be 160 ~ 180 ℃, and the stirring speed is 500 ~ 800 rpm.

Further, the working pressure of the micro-jet high-pressure homogenizer in the homogenization treatment in the operation b is 70 ~ 90 MPa.

Further, the vacuum degree during vacuum drying in the step (2) is 89 ~ 93kPa, and the drying temperature is 60 ~ 70 ℃.

Further, the power of the cold plasma treatment in the step (3) is 200 ~ 400W.

Further, the vacuum degree of the vacuum drying in the step (4) is 98 ~ 100kPa, and the drying temperature is 40 ~ 50 ℃.

Further, the power of the microwave treatment in the step (5) is 400 ~ 600W.

Further, the treating agent in the step (6) comprises, by weight, trimethylolpropane-tris (3-aziridinyl) propionate 3 ~ 5%, dimethylol dihydroxy ethylene urea 1 ~ 2%, fulvic acid 8 ~ 10%, and the balance of deionized water.

Aiming at the limitation of the existing corrugated paper dyeing, the application researches and develops a high-efficiency high-quality color corrugated paper dyeing method, in the dyeing process, the corrugated paper to be dyed is firstly subjected to irradiation treatment of electron beams, when the electron beams irradiate the surface of the corrugated paper, the radiation energy of the incident electron beams is lost, atoms in impacted molecules are released and are excited, a certain amount of active free radicals are formed on a molecular chain framework, the molecular chains of a crystalline region and a non-crystalline region of cellulose on the surface of the corrugated paper are promoted to be uniformly degraded, the fixing capacity of the surface of the corrugated paper on the dyeing liquid is enhanced, after the irradiation treatment, one-time coating treatment is carried out, specially-made dyeing liquid is uniformly coated on the surface of the pretreated corrugated paper, ceramic powder and nano silicon dioxide in the dyeing liquid can play the role of mordant to change the charge of the dye, under the action of other auxiliary reagents, the adsorption of the corrugated paper to the dye is improved, then the cold plasma treatment is carried out, the wettability and the gluing performance of the corrugated paper surface after the primary coating treatment are improved by reasonably adjusting the power and the treatment time of the cold plasma treatment, a certain foundation is laid for the subsequent treatment, at the moment, the secondary coating treatment is carried out, on the basis of the preorder pretreatment, the primary coating treatment and the cold plasma treatment, because the activity, the wettability and the gluing performance of the corrugated paper surface are changed, during the secondary coating, partial thought compatible phenomenon can occur on the basis of the primary coating of effective components in the dyeing liquid, the effective components are quickly and effectively adsorbed to the surface of the corrugated paper, but because the activity, the wettability and the gluing performance of the corrugated paper surface are improved, the surface activity is enhanced, the corrugated paper is more easily infected by external severe conditions, therefore, the corrugated paper after the secondary coating is placed in a microwave environment, under the action of microwaves, partial resin in the corrugated paper is dissolved out and separated out, and a layer of protective film is formed on the surface of the dyed corrugated paper through the synergistic effect of trimethylolpropane-tri (3-aziridinyl) propionate, dimethylol dihydroxy ethylene urea and fulvic acid in a subsequent treating agent, so that the stability of the properties of the corrugated paper can be improved, the brightness of the dyed corrugated paper can be improved, and the quality of the corrugated paper can be improved.

Compared with the prior art, the invention has the following advantages:

the invention provides a method for dyeing color corrugated paper, which is improved to a great extent on the existing corrugated paper dyeing method, effectively improves the efficiency of corrugated paper dyeing, ensures the stability of the comprehensive performance of the corrugated paper, improves the quality of the color corrugated paper, and widens the application range of the corrugated paper to a great extent.

Detailed Description