CN110722871A - Single-concave flocking printing process - Google Patents
Single-concave flocking printing process Download PDFInfo
- Publication number
- CN110722871A CN110722871A CN201810781977.XA CN201810781977A CN110722871A CN 110722871 A CN110722871 A CN 110722871A CN 201810781977 A CN201810781977 A CN 201810781977A CN 110722871 A CN110722871 A CN 110722871A
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- Prior art keywords
- intaglio plate
- drying
- flocking
- concave
- hot air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/10—Intaglio printing ; Gravure printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/02—Engraving; Heads therefor
- B41C1/04—Engraving; Heads therefor using heads controlled by an electric information signal
- B41C1/05—Heat-generating engraving heads, e.g. laser beam, electron beam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/0081—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/009—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using thermal means, e.g. infrared radiation, heat
Abstract
The invention relates to a single-concave flocking printing process, which comprises the following steps: A. manufacturing a single intaglio plate; B. mounting a single intaglio plate and adjusting the gauge; C. adjusting the angle between the doctor blade and the single intaglio plate; D. printing an aqueous touch ink solution onto a substrate; E. the printing product of the single-concave flocking printing is sequentially cooled by fan air blowing, dried by a drying tunnel, dried by a hot air drying circulating system, dried by an ultraviolet drying lamp and dried by an infrared drying lamp. The single-concave flocking printing process saves raw materials compared with silk-screen flocking printing, ensures the efficiency and obviously improves the quality when the products are produced in large scale, effectively controls the cost, and has better drying effect when the printed products are subjected to the drying process of the single-concave flocking printing process, thick and solid ink layers of the printed products, high saturation, strong stereoscopic impression, bright color, soft hand feeling, vivid image and stable quality of the printed products.
Description
Technical Field
The invention relates to the technical field of printing, in particular to a single-concave flocking printing process.
Background
At present, the flocking printing technology is generally realized by a full-automatic screen printing machine and is used for implanting a layer of velvet feeling into a printed matter to make the printed matter have a more three-dimensional image. Because packaging printing needs a plurality of modes to be combined to meet mass production and reproduction, the limitation is large under the traditional silk-screen flocking production process, the production efficiency is low, the ink consumption is large, overprinting is very difficult when the printing is asynchronous with the printing of the previous procedure, and the like, and the characteristics influence the forming, drying, overprinting and the like of the flocking ink.
The silk-screen flocking printing mode has the following defects: the production efficiency is very low, and the average speed is 2200 sheets/hour; the front and the back working procedures are difficult to register, defective products are more, and the overprinting deviation is large; often the phenomenon of sticking occurs; the ink loss is too large; gold stamping cannot be performed after silk-screen flocking.
Disclosure of Invention
The invention aims to provide a single-concave flocking printing process, which solves the problems of low production efficiency, difficulty in overprinting, more defective products, adhesion phenomenon, large ink loss, incapability of gilding and the like in the silk-screen flocking printing technology in the prior art.
The technical scheme adopted by the invention for solving the technical problem is as follows: a single-recess flock printing process comprising:
A. manufacturing a single intaglio plate;
B. mounting a single intaglio plate and adjusting the gauge;
C. adjusting the angle between the doctor blade and the single intaglio plate;
D. printing an aqueous touch ink solution onto a substrate;
E. the printing product of the single-concave flocking printing is sequentially cooled by fan air blowing, dried by a drying tunnel, dried by a hot air drying circulating system, dried by an ultraviolet drying lamp and dried by an infrared drying lamp.
In the single-concave flocking printing process, in the step A, the single intaglio is manufactured by a laser electroengraving plate-making mode.
In the single-concave flocking printing process, the engraving line number of the single gravure is 60-70 lines/cm, and the engraving depth is 55-65 mu m.
In the single-concave flocking printing process, the step B specifically comprises the following steps: the single intaglio plate is fastened on a printing machine, the layout of the single intaglio plate is protected from being damaged, and the gauge at the bite position and the push-pull gauge are aligned.
In the single-concave flocking printing process, in the step C, the doctor blade and the single intaglio plate are in 40-50 degrees and tangent.
In the single-recess flock printing process of the present invention, in step D, the aqueous touch ink solution used is obtained by adding water and ethanol to an aqueous touch ink, wherein the ratio of the total mass of water and ethanol to the mass of the aqueous touch ink is 5% to 10%.
In the single-concave flocking printing process, the mass ratio of the added water to the added ethanol is 0.5-2.
In the single-concave flocking printing process, the step D specifically comprises the following steps: coating a water-based touch ink solution on a single intaglio plate, wherein the image-text part of the single intaglio plate is lower than the plate surface to form a concave part, scraping the water-based touch ink solution on the surface of the single intaglio plate by using a doctor blade, enabling a substrate to pass through the single intaglio plate at the speed of 6000 to 7000 sheets per hour, and pressing the single intaglio plate and the roller blanket together to enable the water-based touch ink solution remained in the concave part of the single intaglio plate to be in contact with the substrate, and transferring the water-based touch ink solution of the concave part onto the substrate.
In the single-concave flocking printing process, in the step E, the hot air drying circulating system comprises a hot air blower for blowing hot air towards the single-concave flocking printed matter to be dried and drying the single-concave flocking printed matter to be dried and an exhaust blower for pumping hot air to be recovered to the hot air blower, the hot air blower is installed above the single-concave flocking printed matter to be dried passing through the hot air drying circulating system, an air suction opening is formed in the hot air drying circulating system below the single-concave flocking printed matter to be dried passing through the hot air drying circulating system, an air suction channel and a recovery air supply channel are formed in the hot air drying circulating system, the air suction channel is connected between the air suction opening and the exhaust blower, and the recovery air supply channel is connected between the exhaust blower and the hot air blower; the number of the fans is more than or equal to 4; the number of the UV drying lamps is 2-4, and the power of the UV drying lamps is 15KW-20 KW; the number of the infrared drying lamps is 3-5, and the power of the infrared drying lamps is 3KW-6 KW; the length of the drying tunnel is 2.2-3 meters.
In the single-recess flock printing process of the invention, the amount of dry coating of the aqueous touch ink solution on the dried substrate is 3g/m2～4g/m2。
The implementation of the single-concave flocking printing process has the following beneficial effects: the single-concave flocking printing process saves raw materials compared with silk-screen flocking printing, ensures the efficiency and obviously improves the quality when the products are produced in large scale, effectively controls the cost, and has better drying effect when the printed products are subjected to the drying process of the single-concave flocking printing process, thick and solid ink layers of the printed products, high saturation, strong stereoscopic impression, bright color, soft hand feeling, vivid image and stable quality of the printed products.
Drawings
Fig. 1 is a schematic structural view of equipment used in the single-recess flocking printing process of the invention.
Detailed Description
The single-concave flocking printing process is further explained by combining the attached drawings and the embodiment:
the invention relates to a single-concave flocking printing process, which comprises the following steps:
A. a single intaglio plate 3 shown in fig. 1 is produced; wherein the single intaglio 3 is manufactured by laser engraving and plate making, and the single intaglio is a single intaglioThe plate 3 has an engraved line number of 60 to 70 lines/cm and an engraved depth of 55 to 65 μm, so that the amount of dry coating of the aqueous touch ink solution on the substrate after drying may be substantially 3g/m2～4g/m2；
B. Putting the single intaglio plate 3 on the plate and adjusting the gauge; the method specifically comprises the following steps: the single intaglio plate 3 is fastened on a printing machine and is positioned in an ink tank 4 shown in figure 1, so that the single intaglio plate 3 is prevented from loosening, the plate surface of the single intaglio plate 3 is protected from being damaged, and the gauge at the bite position and the push-pull gauge are aligned;
C. adjusting the angle between the ink scraping knife (not marked in the figure) and the single intaglio plate 3 to ensure that the ink scraping knife and the single intaglio plate 3 form 40-50 degrees and are tangent, so that the pressure of the ink hanging knife on the page of the single intaglio plate 3 is uniform and the single intaglio plate 3 is not damaged;
D. printing an aqueous touch ink solution onto a substrate; the method specifically comprises the following steps: coating a water-based touch ink solution on a single intaglio plate 3, wherein the image-text part of the single intaglio plate 3 is lower than the depressed part formed on the plate surface, scraping the water-based touch ink solution on the surface of the single intaglio plate 3 by using a doctor blade, and enabling the substrate to pass through the single intaglio plate at a speed of 6000 to 7000 sheets per hour, namely, the paper feeding speed according to the paper feeding direction 1 shown in figure 1, and enabling the water-based touch ink solution remained in the depressed part of the single intaglio plate 3 to be in contact with the substrate by pressing a cylinder rubber blanket 2 shown in figure 1 with the single intaglio plate 3, so as to transfer the water-based touch ink solution of the depressed part onto the substrate; wherein the aqueous touch ink solution is obtained by adding water and ethanol into the aqueous touch ink, wherein the mass ratio of the total mass of the water and the ethanol to the mass of the aqueous touch ink is 5-10%, and the mass ratio of the added water to the ethanol is 0.5-2; the water-based touch ink is used for forming flocking and is special touch gloss oil which is matte in luster, good in wear resistance, excellent in anti-sticking flower property, environment-friendly and fine in hand feeling. For example, water-based touch inks such as WZ 01-0109; the substrate may be paper or paperboard or the like;
E. the single-concave flocking printed product is sequentially cooled by blowing through a fan 5 shown in fig. 1, dried by air through a drying tunnel 6, dried by a hot air drying circulation system 7, dried by an ultraviolet drying lamp 8 and dried by an infrared drying lamp 9. As shown in fig. 1, the hot air drying circulation system 7 includes a hot air blower 71 for blowing hot air toward the single-concave flocked printed matter to be dried and an exhaust blower 72 for sucking hot air and recovering the hot air to the hot air blower 71, the hot air blower 71 is installed above the single-concave flocked printed matter to be dried passing through the hot air drying circulation system 7, an air suction opening 75 is formed in the hot air drying circulation system 7 below the single-concave flocked printed matter to be dried passing through the hot air drying circulation system 7, an air suction channel 73 and a recovery air supply channel 74 are formed in the hot air drying circulation system 7, the air suction channel 73 is connected between the air suction opening 75 and the exhaust blower 72, and the recovery air supply channel 74 is connected between the exhaust blower 72 and the hot; the number of the fans 5 is more than or equal to 4 and is preferably 4; the number of the UV drying lamps 8 is 2-4 and preferably 2, and the power of the UV drying lamps 8 is 15KW-20KW and preferably 18 KW; the number of the infrared drying lamps 9 is 3-5 and preferably 3, and the power of the infrared drying lamps 9 is 3KW-6KW and preferably 5 KW; the length of the drying tunnel 6 is 2.2-3 meters and preferably 2.44 meters.
The drying process in the process is combined, so that the effect of flocking printing can be still ensured under the condition of ensuring the efficiency of 6000 to 7000 per hour of the base material.
It should be noted that, before step C, step F may be further included: carefully calibrating the printing plate, checking the conditions of paper feeding, paper conveying, paper receiving and push-pull rules, properly adjusting, correcting pressure and adjusting the ink supply.
Compared with the existing silk-screen flocking technology, the single-concave flocking printing technology has the beneficial effects that:
(1) the single-concave flocking can realize the required flocking effect, the production speed is improved to 6000 pieces/hour, and the use ratio of the water-based touch ink is reduced by more than 30 percent;
(2) the single-concave flocking process can meet the requirements of offset printing and hot stamping, and because the ink carrying capacity is small, the flocking can be used for gold stamping, and no overprinting deviation exists;
(3) the single-concave flocking can improve the product percent of pass to 98 percent without adhesion;
(4) the single-concave flocking can reduce the cost by 40 percent.
The following is a detailed description of specific examples.
Example 1
Preparing a single intaglio plate by laser-electric carving, wherein the engraving line number of the single intaglio plate is 60 lines/cm, the carving depth is 55 microns, the single intaglio plate is fastened on a printing machine, the layout of the single intaglio plate is protected from being damaged, and the gauge at the bite position and the push-pull gauge are aligned; carefully calibrating the printing plate, checking the conditions of paper feeding, paper conveying, paper receiving and push-pull rules, properly adjusting, correcting pressure and adjusting the ink supply amount; adjusting the angle between the ink scraping knife and the single intaglio plate to ensure that the ink scraping knife and the single intaglio plate are 40 degrees and tangent; coating a water-based touch ink solution on a single intaglio plate, wherein the image-text part of the single intaglio plate is lower than the plate surface to form a concave part, scraping the water-based touch ink solution on the surface of the single intaglio plate by using a doctor blade, the paper feeding speed is 6500 pieces/hour, and the water-based touch ink solution remained in the concave part of the single intaglio plate is contacted with paper by pressing a roller blanket and the single intaglio plate together, so that the water-based touch ink solution of the concave part is transferred to the paper; wherein the aqueous touch ink solution is obtained by adding water and ethanol to the aqueous touch ink, wherein the mass ratio of the total mass of the water and the ethanol to the mass of the aqueous touch ink is 5%, and the mass ratio of the added water to the ethanol is 0.5; the printing product of the single-concave flocking printing is sequentially cooled by fan air blowing, dried by a drying tunnel, dried by a hot air drying circulating system, dried by an ultraviolet drying lamp and dried by an infrared drying lamp. Wherein, the number of the fans is 4; the number of the UV drying lamps is 3, and the power of the UV drying lamps is 20 KW; the number of the infrared drying lamps is 4, and the power of the infrared drying lamps is 6 KW; the length of the drying tunnel is 2.2 meters. The dry coating weight of the aqueous touch ink solution on the substrate after drying is substantially 3g/m2. The results of comparing this example with the prior art screen-printed flock print are shown in table 1.
Example 2
Preparing a single intaglio plate by laser-electric carving, wherein the engraving line number of the single intaglio plate is 65 lines/cm, the carving depth is 60 mu m, the single intaglio plate is fastened on a printing machine, the layout of the single intaglio plate is protected from being damaged, and the gauge at the bite position and the push-pull gauge are aligned; carefully calibrating printing plates, checking the feeding, delivery, push-pull gaugesAdjusting the pressure properly, and adjusting the ink supply amount; adjusting the angle between the ink scraping knife and the single intaglio plate to ensure that the ink scraping knife and the single intaglio plate are 45 degrees and tangent; coating a water-based touch ink solution on a single intaglio plate, wherein the image-text part of the single intaglio plate is lower than the plate surface to form a concave part, scraping the water-based touch ink solution on the surface of the single intaglio plate by using a doctor blade, the paper feeding speed is 6000 pieces/hour, and the water-based touch ink solution remained in the concave part of the single intaglio plate is contacted with paper by pressing a roller blanket and the single intaglio plate together, so that the water-based touch ink solution of the concave part is transferred to the paper; wherein the aqueous touch ink solution is obtained by adding water and ethanol into the aqueous touch ink, wherein the mass ratio of the total mass of the water and the ethanol to the mass of the aqueous touch ink is 8%, and the mass ratio of the added water to the added ethanol is 1; the printing product of the single-concave flocking printing is sequentially cooled by fan air blowing, dried by a drying tunnel, dried by a hot air drying circulating system, dried by an ultraviolet drying lamp and dried by an infrared drying lamp. Wherein, the number of the fans is 4; the number of the UV drying lamps is 2, and the power of the UV drying lamps is 18 KW; the number of the infrared drying lamps is 3, and the power of the infrared drying lamps is 5 KW; the length of the drying tunnel is 2.44 meters. The dry coating weight of the aqueous touch ink solution on the substrate after drying was substantially 3.5g/m2. The results of comparing this example with the prior art screen-printed flock print are shown in table 1.
Example 1
Preparing a single intaglio plate by laser-electric carving, wherein the engraving line number of the single intaglio plate is 70 lines/cm, the carving depth is 65 mu m, the single intaglio plate is fastened on a printing machine, the layout of the single intaglio plate is protected from being damaged, and the gauge at the bite position and the push-pull gauge are aligned; carefully calibrating the printing plate, checking the conditions of paper feeding, paper conveying, paper receiving and push-pull rules, properly adjusting, correcting pressure and adjusting the ink supply amount; adjusting the angle between the ink scraping knife and the single intaglio plate to ensure that the ink scraping knife and the single intaglio plate are in 50 degrees and tangent; coating water-based touch ink solution on the single intaglio plate, scraping the water-based touch ink solution on the surface of the single intaglio plate by a doctor blade at a paper feeding speed of 6000Pressing the sheet/hour by a roller blanket and a single intaglio plate to make the water-based touch ink solution remained in the depressed part of the single intaglio plate contact with the sheet, and transferring the water-based touch ink solution in the depressed part onto the sheet; wherein the aqueous touch ink solution is obtained by adding water and ethanol into the aqueous touch ink, wherein the mass ratio of the total mass of the water and the ethanol to the mass of the aqueous touch ink is 10%, and the mass ratio of the added water to the added ethanol is 2; the printing product of the single-concave flocking printing is sequentially cooled by fan air blowing, dried by a drying tunnel, dried by a hot air drying circulating system, dried by an ultraviolet drying lamp and dried by an infrared drying lamp. Wherein, the number of the fans is 5; the number of the UV drying lamps is 4, and the power of the UV drying lamps is 15 KW; the number of the infrared drying lamps is 5, and the power of the infrared drying lamps is 3 KW; the length of the drying tunnel is 3 meters. The dry coating weight of the aqueous touch ink solution on the substrate after drying is substantially 4g/m2. The results of comparing this example with the prior art screen-printed flock print are shown in table 1.
Table 1:
it will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. A single-recess flock printing process, comprising:
A. manufacturing a single intaglio plate;
B. mounting a single intaglio plate and adjusting the gauge;
C. adjusting the angle between the doctor blade and the single intaglio plate;
D. printing an aqueous touch ink solution onto a substrate;
E. the printing product of the single-concave flocking printing is sequentially cooled by fan air blowing, dried by a drying tunnel, dried by a hot air drying circulating system, dried by an ultraviolet drying lamp and dried by an infrared drying lamp.
2. The single-intaglio flocking printing process according to claim 1 wherein in step a, the single intaglio plate is produced by laser electroengraving.
3. The single-intaglio flocking printing process according to claim 2 wherein the single intaglio plate has engraving lines of 60-70 lines/cm and engraving depth of 55-65 μm.
4. The single-pocket flocking printing process according to claim 1, wherein step B specifically comprises: the single intaglio plate is fastened on a printing machine, the layout of the single intaglio plate is protected from being damaged, and the gauge at the bite position and the push-pull gauge are aligned.
5. The single-intaglio flocking printing process according to claim 1 wherein in step C, the doctor blade is tangent to the single intaglio plate at an angle of 40 ° to 50 °.
6. The single-gravure flocking printing process as claimed in claim 1, wherein in the step D, the aqueous touch ink solution used is obtained by adding water and ethanol to an aqueous touch ink, wherein the ratio of the total mass of water and ethanol to the mass of the aqueous touch ink is 5% to 10%.
7. The single-pocket flocking printing process according to claim 6 wherein the mass ratio between the added water and ethanol is between 0.5 and 2.
8. The single-pocket flocking printing process according to claim 1, wherein step D specifically comprises: coating a water-based touch ink solution on a single intaglio plate, wherein the image-text part of the single intaglio plate is lower than the plate surface to form a concave part, scraping the water-based touch ink solution on the surface of the single intaglio plate by using a doctor blade, enabling a substrate to pass through the single intaglio plate at the speed of 6000 to 7000 sheets per hour, and pressing the single intaglio plate and the roller blanket together to enable the water-based touch ink solution remained in the concave part of the single intaglio plate to be in contact with the substrate, and transferring the water-based touch ink solution of the concave part onto the substrate.
9. The single-concave flocking printing process according to claim 1 wherein, in step E, the hot air drying circulation system comprises a hot air blower for blowing hot air for drying toward the single-concave flocking printed matter to be dried and an exhaust blower for pumping hot air to be recovered to the hot air blower, the hot air blower is installed above the single-concave flocking printed matter to be dried passing through the hot air drying circulation system, an air suction inlet is arranged in the hot air drying circulation system below the single-concave flocking printed matter to be dried passing through the hot air drying circulation system, an air suction channel and a recovery air supply channel are formed in the hot air drying circulation system, the air suction channel is connected between the air suction inlet and the exhaust blower, and the recovery air supply channel is connected between the exhaust blower and the hot air blower; the number of the fans is more than or equal to 4; the number of the UV drying lamps is 2-4, and the power of the UV drying lamps is 15KW-20 KW; the number of the infrared drying lamps is 3-5, and the power of the infrared drying lamps is 3KW-6 KW; the length of the drying tunnel is 2.2-3 meters.
10. The single-gravure flock printing process according to claim 9, characterised in that the amount of dry coating of the aqueous touch-sensitive ink solution on the substrate after drying is 3g/m2～4g/m2。
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| CN201810781977.XA CN110722871A (en) | 2018-07-17 | 2018-07-17 | Single-concave flocking printing process |
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| CN201810781977.XA CN110722871A (en) | 2018-07-17 | 2018-07-17 | Single-concave flocking printing process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112109464A (en) * | 2020-09-28 | 2020-12-22 | 安徽天翔高新特种包装材料集团有限公司 | Gravure printing method for ceramic electronic component |
| CN114434994A (en) * | 2022-01-22 | 2022-05-06 | 增和包装股份有限公司 | Offset flocking printing process |
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| CN106566314A (en) * | 2016-11-10 | 2017-04-19 | 安徽集友纸业包装有限公司 | Water-based matt tactility printing ink, tipping paper for cigarette, and preparation method of tipping paper for cigarette |
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| DE3910163C2 (en) * | 1989-03-29 | 1996-03-28 | Hans Kaesbauer | Device for drying the coating of printed surfaces of sheet-like printed products |
| CN103612493A (en) * | 2013-11-26 | 2014-03-05 | 深圳市科彩印务有限公司 | Method for printing gravure wrinkles |
| CN103818130A (en) * | 2014-02-13 | 2014-05-28 | 上海烟草包装印刷有限公司 | Method and device for making matte of paper packaging box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112109464A (en) * | 2020-09-28 | 2020-12-22 | 安徽天翔高新特种包装材料集团有限公司 | Gravure printing method for ceramic electronic component |
| CN114434994A (en) * | 2022-01-22 | 2022-05-06 | 增和包装股份有限公司 | Offset flocking printing process |
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