阅读说明：本技术 一种绿色环保印刷工艺 (Green and environment-friendly printing process ) 是由 黄军平 于 2021-09-26 设计创作，主要内容包括：本发明公开了一种绿色环保印刷工艺,涉及印刷技术领域。该绿色环保印刷工艺,包括原料破碎、原料研磨、溶解混合、纸塑加工和印刷五个步骤。该绿色环保印刷工艺,所采用的油墨其原料的有害含量较少,避免了油墨有害含量较多对环境负担较大和气味散发时对工人或者使用者的身体造成危害,相对性的提高了该工艺的绿色环保性能,且多种助剂的添加,使得该油墨不管在涂覆时还是干燥后性能都足够优异,相对性的提高了该印刷工艺的实用性,便于进行推广和使用,还方便将原料纸塑进行清洁整平处理,避免了纸塑印刷面不够干净或者发生褶皱造成印刷质量降低的情况,较为显著的提高了该印刷工艺的良品率和实用性。(The invention discloses a green and environment-friendly printing process, and relates to the technical field of printing. The green environment-friendly printing process comprises five steps of raw material crushing, raw material grinding, dissolving and mixing, paper-plastic processing and printing. This green printing technology, the harmful content of its raw materials of printing ink that adopts is less, it causes harm to workman or user's health to have avoided the more environment burden of printing ink harmful content to be great when distributing with the smell, the improvement of relativity this technology's green performance, and the interpolation of multiple auxiliary agent, make this printing ink be regardless of when coating or dry back performance all enough excellent, the improvement of relativity this printing technology's practicality, be convenient for promote and use, still conveniently mould raw materials paper and carry out clean flattening processing, avoided paper to mould the printing face clean enough or take place the fold and cause the condition that the printing quality reduces, comparatively showing improvement this printing technology's yields and practicality.)

1. A green environment-friendly printing process is characterized by comprising the following steps: step one, crushing raw materials: preparing ink raw materials, adding the ink raw materials into a vertical crushing device through a feed hopper, controlling the starting of the vertical crushing device to crush the ink raw materials, wherein the ink is required to be maintained in a constant temperature state during crushing, and then discharging and collecting the ink for later use;

step two, grinding the raw materials: adding the collected standby crushed raw materials in the step one into a vertical grinder for grinding treatment, screening the crushed raw materials by using a stainless steel screen with 70-80 meshes after grinding, adding the granular raw materials remained on the screen into the vertical grinder again for grinding treatment, and then obtaining powdery raw materials and collecting the powdery raw materials for standby;

step three, dissolving and mixing: adding the collected standby powdery raw materials in the second step into a vertical ink regulator, preparing organic pigments, cosolvent and auxiliary agents, adding the organic pigments, cosolvent and auxiliary agents into the vertical ink regulator, controlling the rotation of a stirring blade in the vertical ink regulator, controlling the rotation speed of the stirring blade to be 342-364r/min, heating the temperature inside the vertical ink regulator to 68-80 ℃, stirring for 15-19 minutes under the condition that the rotation speed of the stirring blade and the temperature inside the device are not changed, finishing the blending of the ink, adding a pH value regulator into the vertical ink regulator, uniformly stirring, discharging the blended ink, and collecting the ink for standby;

step four, paper-plastic processing: sleeving a paper-plastic coiled material to be printed on a material roller of a conveyor, immediately arranging a dust removal device and a heating device at the passing position side in the conveying process, respectively removing dust and heating the paper-plastic coiled material by using the dust removal device and the heating device, and then rolling the paper-plastic coiled material again to finish preheating processing;

step five, printing: and (3) adding the spare printing ink collected in the third step into a material box of printing equipment, and then printing the paper-plastic coiled material subjected to preheating processing in the fourth step by using the printing equipment to obtain a finished product of the green environment-friendly printing process.

2. The green and environment-friendly printing process according to claim 1, wherein: the ink raw material in the step one is rosin water-soluble resin, the part of the rosin water-soluble resin is 127-133, and when the rosin water-soluble resin is added in the step three, polyvinyl butyral is firstly used for copolymerization and mixing with the rosin water-soluble resin, and then the rosin water-soluble resin can be used.

3. The green and environment-friendly printing process according to claim 1, wherein: the cosolvent in the third step comprises the following raw materials: dipropylene glycol butyl ether, dipropylene glycol monomethyl ether and deionized water, wherein the weight parts of the raw materials are 0.8-1 part, 1.2-1.6 parts and 22-28 parts in sequence.

4. A green environmental protection printing process according to claim 3, wherein: the auxiliary agent in the third step comprises the following raw materials: the defoaming agent, the dispersing agent, the light stabilizer, the flatting agent, the slip agent and the silane coupling agent are sequentially mixed according to the parts by weight of 0.8-1 part, 1.2-1.4 parts, 1.1-1.3 parts, 0.8-1 part, 1-1.2 parts and 0.9-1.1 part.

5. The green and environment-friendly printing process according to claim 4, wherein: and adding a pH value regulator into the step III, uniformly stirring the raw materials, detecting the pH value of the raw materials of the printing ink by using a pH value measuring instrument, and discharging the printing ink for later use after the pH value of the printing ink is controlled to be 7.5-8.5.

6. The green and environment-friendly printing process according to claim 5, wherein: and in the third step, the ink is discharged and collected, then the ink is required to be placed in a ventilated and cool place for heat dissipation, dust-free processing is required to be carried out in the place, and the ink can be placed in an ink thermostat for standing and standby after the temperature of the ink is reduced to 8-10 ℃.

7. The green and environment-friendly printing process according to claim 1, wherein: and in the fourth step, the heating temperature of the heating equipment is 40-50 ℃, and the heating equipment is used for heating the paper-plastic coiled material in a temperature sensing manner.

8. The green and environment-friendly printing process according to claim 1, wherein: and fifthly, after the paper-plastic coiled material is printed, drying the printed body of the paper-plastic coiled material by using a drying device, wherein the heating mode of the drying device is electric heating, and the temperature of the drying device is controlled to be 45-50 ℃.

Technical Field

The invention relates to the technical field of printing, in particular to a green and environment-friendly printing process.

Background

Most of the ink used in the printing process is solvent-based ink, including chlorinated polypropylene ink, polyurethane ink, polyacrylate ink and the like, and the ink contains more harmful content, so that the ink has larger environmental burden, can cause harm to the body of workers during printing and processing, and is not beneficial to the requirement of green environmental protection, the performance of the existing part of low-toxicity or non-toxic ink is poorer, the printing yield is required to be improved, and the ink is not beneficial to popularization and use.

Disclosure of Invention

The invention aims to provide a green and environment-friendly printing process to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an environment-friendly printing process comprises the following steps: step one, crushing raw materials: preparing ink raw materials, adding the ink raw materials into a vertical crushing device through a feed hopper, controlling the starting of the vertical crushing device to crush the ink raw materials, wherein the ink is required to be maintained in a constant temperature state during crushing, and then discharging and collecting the ink for later use;

step two, grinding the raw materials: adding the collected standby crushed raw materials in the step one into a vertical grinder for grinding treatment, screening the crushed raw materials by using a stainless steel screen with 70-80 meshes after grinding, adding the granular raw materials remained on the screen into the vertical grinder again for grinding treatment, and then obtaining powdery raw materials and collecting the powdery raw materials for standby;

step three, dissolving and mixing: adding the collected standby powdery raw materials in the second step into a vertical ink regulator, preparing organic pigments, cosolvent and auxiliary agents, adding the organic pigments, cosolvent and auxiliary agents into the vertical ink regulator, controlling the rotation of a stirring blade in the vertical ink regulator, controlling the rotation speed of the stirring blade to be 342-364r/min, heating the temperature inside the vertical ink regulator to 68-80 ℃, stirring for 15-19 minutes under the condition that the rotation speed of the stirring blade and the temperature inside the device are not changed, finishing the blending of the ink, adding a pH value regulator into the vertical ink regulator, uniformly stirring, discharging the blended ink, and collecting the ink for standby;

step four, paper-plastic processing: sleeving a paper-plastic coiled material to be printed on a material roller of a conveyor, immediately arranging a dust removal device and a heating device at the passing position side in the conveying process, respectively removing dust and heating the paper-plastic coiled material by using the dust removal device and the heating device, and then rolling the paper-plastic coiled material again to finish preheating processing;

step five, printing: and (3) adding the spare printing ink collected in the third step into a material box of printing equipment, and then printing the paper-plastic coiled material subjected to preheating processing in the fourth step by using the printing equipment to obtain a finished product of the green environment-friendly printing process.

Preferably, the ink raw material in the step one is rosin water-soluble resin, the part of the rosin water-soluble resin is 127-133, and the rosin water-soluble resin needs to be copolymerized and mixed with polyvinyl butyral before being put into use when being put into the step three.

Preferably, the cosolvent in step three comprises the following raw materials: dipropylene glycol butyl ether, dipropylene glycol monomethyl ether and deionized water, wherein the weight parts of the raw materials are 0.8-1 part, 1.2-1.6 parts and 22-28 parts in sequence.

Preferably, the auxiliary agent in step three comprises the following raw materials: the defoaming agent, the dispersing agent, the light stabilizer, the flatting agent, the slip agent and the silane coupling agent are sequentially mixed according to the parts by weight of 0.8-1 part, 1.2-1.4 parts, 1.1-1.3 parts, 0.8-1 part, 1-1.2 parts and 0.9-1.1 part.

Preferably, after the pH regulator is added in step three and the raw materials are stirred uniformly, the pH of the raw materials of the ink needs to be detected by using a pH measuring instrument, the pH of the ink is required to be controlled to be 7.5-8.5, and then the ink can be discharged for standby.

Preferably, the ink in the third step is discharged and collected, then the ink needs to be placed in a ventilated and cool place for heat dissipation, dust-free processing is required to be carried out in the place, and the ink can be placed in an ink thermostat for standing and standby after the temperature of the ink is reduced to 8-10 ℃.

Preferably, the heating temperature of the heating device in the fourth step is 40-50 ℃, and the heating device heats the paper-plastic coiled material in a temperature sensing manner, so that the folds are conveniently ironed.

Preferably, in the fifth step, after the paper-plastic coiled material is printed, a drying device is needed to dry the printing body of the paper-plastic coiled material, the heating mode of the drying device is electric heating, and the temperature of the drying device is controlled to be 45-50 ℃, so that the printed ink is conveniently dried.

Advantageous effects

Compared with the prior art, the invention provides a green and environment-friendly printing process, which has the following beneficial effects:

1. this green printing technology, the harmful content of its raw materials of printing ink that adopts is less, it is more to cause harm to workman or user's health to have avoided printing ink harmful content when the environmental burden is great and smell distributes, the improvement of relativity this technology's green performance, and the addition of multiple auxiliary agent, make this printing ink be regardless of when the coating or dry back performance all enough excellent, the improvement of relativity this printing technology's practicality, still there is the lower condition of manufacturing cost, be convenient for promote and use.

2. This green printing technology has added the step that processing was moulded to paper when the printing, conveniently moulds raw materials paper and cleans the flattening and handle, has avoided paper to mould that the printing face is clean enough or takes place the fold and cause the condition that printing quality reduces inadequately, comparatively showing improvement this printing technology's yields and practicality.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.

The first embodiment is as follows: an environment-friendly printing process comprises the following steps: step one, crushing raw materials: preparing an ink raw material, adding the ink raw material into a vertical crushing device through a feed hopper, and controlling the starting of the vertical crushing device to crush the ink, wherein the ink is kept in a constant temperature state during crushing, and then is discharged and collected for later use, the ink raw material in the step one is rosin water-soluble resin, the part of the rosin water-soluble resin is 127 parts, and when the rosin water-soluble resin is put into the step three, polyvinyl butyral is required to be copolymerized and mixed with the rosin water-soluble resin, and then the rosin water-soluble resin can be put into use;

step two, grinding the raw materials: adding the collected standby crushed raw materials in the step one into a vertical grinder for grinding treatment, screening the crushed raw materials by using a 70-mesh stainless steel screen after grinding, adding the granular raw materials remained on the screen into the vertical grinder again for grinding treatment, and then obtaining powdery raw materials and collecting the powdery raw materials for standby;

step three, dissolving and mixing: adding the powdery raw materials collected for later use in the second step into a vertical ink-regulating machine, preparing organic pigments, cosolvent and auxiliary agents, adding the organic pigments, the cosolvent and the auxiliary agents into the vertical ink-regulating machine, controlling the rotation of a stirring paddle in the vertical ink-regulating machine, controlling the rotating speed of the stirring paddle at 342r/min, heating the temperature inside the vertical ink-regulating machine to 68 ℃, stirring for 15 minutes under the condition that the rotating speed of the stirring paddle and the temperature in the device are not changed, completing the blending of the ink, adding a pH value regulator into the vertical ink-regulating machine, stirring uniformly, discharging the blended ink and collecting the ink for later use, wherein the cosolvent in the third step comprises the following raw materials: dipropylene glycol butyl ether, dipropylene glycol monomethyl ether and deionized water, wherein the weight parts of the raw materials are 0.8 part, 1.2 parts and 22 parts in sequence, and the auxiliary agent in the third step comprises the following raw materials: the ink comprises a defoaming agent, a dispersing agent, a light stabilizer, a leveling agent, a slipping agent and a silane coupling agent, wherein the raw materials comprise 0.8 part, 1.2 parts, 1.1 part, 0.8 part, 1 part and 0.9 part by weight in sequence, a pH value regulator is added in the step three, the raw materials are uniformly stirred, the pH value of the raw materials of the ink needs to be detected by using a pH value measuring instrument, the pH value of the ink is required to be controlled at 7.5, the ink can be discharged for standby application, the ink needs to be placed in a ventilated and cool place for heat dissipation after being discharged and collected in the step three, dust-free processing is required to be carried out in the place, and the ink can be placed in an ink thermostat for standby application after the temperature of the ink is reduced to 8 ℃;

step four, paper-plastic processing: sleeving a paper-plastic coiled material to be printed on a material roller of a conveyor, arranging a dust removal device and a heating device at the passing position of the conveying process, respectively removing dust and heating the paper-plastic coiled material by using the dust removal device and the heating device, and then rewinding the paper-plastic coiled material to finish preheating processing, wherein the heating temperature of the heating device in the fourth step is 40 ℃, and the heating device is used for heating the paper-plastic coiled material in a temperature sensing manner;

step five, printing: and adding the standby ink collected in the third step into a material box of printing equipment, and then printing the paper-plastic coiled material subjected to preheating processing in the fourth step by using the printing equipment to obtain a finished product of the green environment-friendly printing process, wherein in the fifth step, a printing body of the paper-plastic coiled material is dried by using a drying device after the printing of the paper-plastic coiled material, the heating mode of the drying device is electric heating, and the temperature of the drying device is controlled at 45 ℃.

Example two: an environment-friendly printing process comprises the following steps: step one, crushing raw materials: preparing an ink raw material, adding the ink raw material into a vertical crushing device through a feed hopper, and controlling the starting of the vertical crushing device to crush the ink, wherein the ink is kept in a constant temperature state during crushing, and then is discharged and collected for later use, the ink raw material in the step one is rosin water-soluble resin, the part of the rosin water-soluble resin is 130 parts, and when the rosin water-soluble resin is put into the step three, polyvinyl butyral is required to be copolymerized and mixed with the rosin water-soluble resin, and then the rosin water-soluble resin can be put into use;

step two, grinding the raw materials: adding the collected standby crushed raw materials in the step one into a vertical grinder for grinding treatment, after grinding, screening by using a 75-mesh stainless steel screen, adding the remaining granular raw materials in the screen into the vertical grinder again for grinding treatment, and then obtaining powdery raw materials and collecting the powdery raw materials for standby;

step three, dissolving and mixing: adding the powdery raw materials collected for later use in the second step into a vertical ink-regulating machine, preparing organic pigments, cosolvent and auxiliary agents, adding the organic pigments, the cosolvent and the auxiliary agents into the vertical ink-regulating machine, controlling the rotation of a stirring paddle in the vertical ink-regulating machine, controlling the rotating speed of the stirring paddle at 353r/min, simultaneously heating the temperature inside the vertical ink-regulating machine to 74 ℃, stirring for 17 minutes under the condition of keeping the rotating speed of the stirring paddle and the temperature inside the device unchanged, completing the blending of the ink, then adding a pH value regulator into the vertical ink-regulating machine, stirring uniformly, discharging the blended ink and collecting the ink for later use, wherein the cosolvent in the third step comprises the following raw materials: dipropylene glycol butyl ether, dipropylene glycol monomethyl ether and deionized water, wherein the weight parts of the raw materials are 0.9 part, 1.4 parts and 25 parts in sequence, and the auxiliary agent in the third step comprises the following raw materials: the ink comprises a defoaming agent, a dispersing agent, a light stabilizer, a leveling agent, a slipping agent and a silane coupling agent, wherein the raw materials comprise 0.9 part, 1.3 part, 1.2 part, 0.9 part, 1.1 part and 1 part by weight in sequence, a pH value regulator is added in the step three, the raw materials are uniformly stirred, the pH value of the raw materials of the ink needs to be detected by using a pH value measuring instrument, the pH value of the ink is required to be controlled at 8, the ink can be discharged for standby application, the ink needs to be placed in a ventilated and cool place for heat dissipation after being discharged and collected in the step three, dust-free processing is required in the place, and the ink can be placed in an ink constant-temperature machine for standby application after the temperature of the ink is reduced to 9 ℃;

step four, paper-plastic processing: sleeving a paper-plastic coiled material to be printed on a material roller of a conveyor, arranging a dust removal device and a heating device at the passing position of the conveying process, respectively removing dust and heating the paper-plastic coiled material by using the dust removal device and the heating device, and then rewinding the paper-plastic coiled material to finish preheating processing, wherein the heating temperature of the heating device in the fourth step is 45 ℃, and the heating device is used for heating the paper-plastic coiled material in a temperature sensing manner;

step five, printing: and step five, after the paper-plastic coiled material is printed, drying the printed body of the paper-plastic coiled material by using a drying device, wherein the heating mode of the drying device is electric heating, and the temperature of the drying device is controlled at 47.5 ℃.

Example three: an environment-friendly printing process comprises the following steps: step one, crushing raw materials: preparing an ink raw material, adding the ink raw material into a vertical crushing device through a feed hopper, and controlling the starting of the vertical crushing device to crush the ink, wherein the ink is kept in a constant temperature state during crushing, and then is discharged and collected for later use, the ink raw material in the step one is rosin water-soluble resin, the part of the rosin water-soluble resin is 133 parts, and when the rosin water-soluble resin is put into the step three, polyvinyl butyral is required to be copolymerized and mixed with the rosin water-soluble resin, and then the rosin water-soluble resin can be put into use;

step two, grinding the raw materials: adding the collected standby crushed raw materials in the step one into a vertical grinder for grinding treatment, screening the crushed raw materials by using an 80-mesh stainless steel screen after grinding, adding the remaining granular raw materials in the screen into the vertical grinder again for grinding treatment, and then obtaining powdery raw materials and collecting the powdery raw materials for standby;

step three, dissolving and mixing: adding the powdery raw materials collected for later use in the second step into a vertical ink-regulating machine, preparing organic pigments, cosolvent and auxiliary agents, adding the organic pigments, the cosolvent and the auxiliary agents into the vertical ink-regulating machine, controlling the rotation of a stirring paddle in the vertical ink-regulating machine, controlling the rotating speed of the stirring paddle at 364r/min, simultaneously heating the temperature inside the vertical ink-regulating machine to 80 ℃, stirring for 19 minutes under the condition of keeping the rotating speed of the stirring paddle and the temperature inside the device unchanged, completing the blending of the ink, then adding a pH value regulator into the vertical ink-regulating machine, stirring uniformly, discharging the blended ink and collecting the ink for later use, wherein the cosolvent in the third step comprises the following raw materials: the auxiliary agent comprises 1 part of dipropylene glycol butyl ether, 1.6 parts of dipropylene glycol monomethyl ether and 28 parts of deionized water in sequence by weight, and the auxiliary agent in the third step comprises the following raw materials: the ink comprises a defoaming agent, a dispersing agent, a light stabilizer, a leveling agent, a slipping agent and a silane coupling agent, wherein the raw materials comprise 1 part, 1.4 parts, 1.3 parts, 1 part, 1.2 parts and 1.1 parts by weight in sequence, a pH value regulator is added in the step three, the raw materials are uniformly stirred, a pH value measuring instrument is used for detecting the pH value of the raw material of the ink, the pH value of the ink is required to be controlled at 8.5, the ink can be discharged for standby use, the ink is required to be placed in a ventilated and cool place for heat dissipation after being discharged and collected in the step three, dust-free processing is required to be carried out in the place, and the ink can be placed in an ink constant-temperature machine for standby use after the temperature of the ink is reduced to 10 ℃;

step four, paper-plastic processing: sleeving a paper-plastic coiled material to be printed on a material roller of a conveyor, arranging a dust removal device and a heating device at the passing position of the conveying process, respectively removing dust and heating the paper-plastic coiled material by using the dust removal device and the heating device, and then rewinding the paper-plastic coiled material to finish preheating processing, wherein the heating temperature of the heating device in the fourth step is 50 ℃, and the heating device is used for heating the paper-plastic coiled material in a temperature sensing manner;

step five, printing: and adding the standby ink collected in the third step into a material box of printing equipment, and then printing the paper-plastic coiled material subjected to preheating processing in the fourth step by using the printing equipment to obtain a finished product of the green environment-friendly printing process, wherein in the fifth step, a printing body of the paper-plastic coiled material is dried by using a drying device after the printing of the paper-plastic coiled material, the heating mode of the drying device is electric heating, and the temperature of the drying device is controlled at 50 ℃.

It can be seen from this that: the existing part of the ink contains more harmful content, which not only bears great burden on the environment and can cause harm to the body of workers during printing processing, but also has poor performance of the existing part of the low-toxicity or non-toxic ink, the green environment-friendly printing process adopts less harmful content of the raw materials of the ink, avoids the harm to the body of workers or users when the harmful content of the ink is more, the burden on the environment is greater and odor is diffused, the green environment-friendly performance of the process is relatively improved, and the addition of a plurality of auxiliary agents ensures that the performance of the ink is excellent enough no matter when the ink is coated or dried, the practicability of the printing process is relatively improved, and the condition of low production cost exists, which is convenient for popularization and use, and the printing yield is also remained to be improved, which is not beneficial for popularization and use, and is convenient for cleaning and leveling the raw material paper and plastic, the condition that the printing quality is reduced due to the fact that the paper-plastic printing surface is not clean enough or wrinkles occur is avoided, and the yield and the practicability of the printing process are improved remarkably.