CN110949028A - Printing method for strengthening sprayed code adhesive force on gloss oil surface - Google Patents
Printing method for strengthening sprayed code adhesive force on gloss oil surface Download PDFInfo
- Publication number
- CN110949028A CN110949028A CN201911124783.3A CN201911124783A CN110949028A CN 110949028 A CN110949028 A CN 110949028A CN 201911124783 A CN201911124783 A CN 201911124783A CN 110949028 A CN110949028 A CN 110949028A
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- printing method
- printing
- gloss oil
- thinner
- code
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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
- B41M1/06—Lithographic printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet printing
-
- 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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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a printing method for strengthening sprayed code adhesion on a gloss oil surface, which comprises the following steps of spraying ink on a plane product, and carrying out offset printing and laser pattern impression cold transfer; coating a thinner on the surface of the plane product after offset printing; step three, carrying out UV drying on the plane product coated with the thinner; and fourthly, carrying out code spraying printing on the surface of the dried planar product. According to the printing method for strengthening the jet ink adhesive force on the gloss oil surface, white ink printing is completed through offset printing, then the thinner is coated, and then the thinner is subjected to UV illumination treatment, so that the surface tension of the gloss oil is changed, the subsequent jet ink printing has stronger adhesive force, and compared with the prior art, the printing method has higher stability, meets higher quality requirements, and is not easy to fall off.
Description
Technical Field
The invention relates to a printing process, in particular to a printing method for obtaining a pattern which is not easy to fall off on smooth base oil by using a gloss oil surface strengthened code spraying adhesive force.
Background
At present, two-dimension codes are widely applied to appearances of various packaging products, and the jet printing of the two-dimension codes on the surfaces of printed products as packaging printed products becomes a packaging printing normal state. However, the packaging printed matter is generally coated with UV varnish or water and oil for printing the aesthetic appearance and protecting the ink layer. In the prior art, code spraying printing is carried out on the surface of an oiled printed product, the existing code spraying mode can cause poor adhesive force, and an ink spraying layer of a product is easy to fall off in the circulation process, so that two-dimensional code identification is influenced, and the appearance of the printed product is influenced. Of course, in order to enhance the adhesion, surface modification operations such as plasma treatment are performed on the surface of the printed matter after oil treatment, but these modification methods require more manpower and material resources, which greatly increases the cost; the existing improvement method still has the defects of instability, and is easy to cause the problems of low yield and the like.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a printing method for strengthening the adhesion of the sprayed code on the surface of the gloss oil, so that the adhesion on the surface of the gloss oil of a printed matter is strengthened, the sprayed code printing is not easy to fall off, and the product quality is improved.
The technical solution of the invention is as follows:
a printing method for strengthening sprayed code adhesion on a gloss oil surface comprises the following steps:
spraying ink on a plane product, and carrying out offset printing and laser pattern imprinting cold transfer;
coating a thinner on the surface of the plane product after offset printing;
step three, carrying out UV drying on the plane product coated with the thinner;
and fourthly, carrying out code spraying printing on the surface of the dried planar product.
From the above description, it is clear that the present invention has the following advantages:
according to the printing method for strengthening the jet ink adhesive force on the gloss oil surface, white ink printing is completed through offset printing, then the thinner is coated, and then the thinner is subjected to UV illumination treatment, so that the surface tension of the gloss oil is changed, the subsequent jet ink printing has stronger adhesive force, and compared with the prior art, the printing method has higher stability, meets higher quality requirements, and is not easy to fall off. The invention can realize better adhesive force effect than the prior art without additional manpower or material resources, so that the sprayed code can not easily fall off and has good stability; not only improves the product quality, but also has low improvement cost, and greatly improves the market competitiveness of the code spraying product.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.
According to the printing method for strengthening the sprayed code adhesive force on the gloss oil surface, disclosed by the invention, after the two-dimensional code is sprayed on the surface of the product coated with the UV gloss oil, the two-dimensional code can keep a firm adhesive effect, is clear and is not easy to fall off.
The printing method for strengthening the code spraying adhesive force on the surface of the gloss oil disclosed by the invention comprises the following steps of:
s101, spraying ink on a planar product, and carrying out offset printing and pattern imprinting cold transfer;
s102, coating a thinner on the surface of the offset printed planar product;
s103, carrying out UV drying on the planar product coated with the thinner;
and S104, performing code spraying printing on the surface of the dried planar product.
Specifically, the invention adopts a production process of a plane product requiring a pattern imprinting transfer process, such as laser pattern imprinting transfer, namely cold transfer, after the transfer, in order to ensure that the surface of the plane product has better finish and brightness, a thinner is coated to increase the texture effect of the surface, and after the thinner is adopted, UV drying is carried out, so that the adsorption capacity of the surface is enhanced in the process of slowly drying the thinner, and the obtained code-sprayed pattern can be better attached to the surface without falling off after the code is sprayed on the surface.
In the above printing method for enhancing the inkjet printing adhesion on the gloss oil surface according to the present invention, in a preferred embodiment, the thinner is UV gloss oil, and the components of the thinner include:
resin: acrylic acid modified rosin esters;
monomer (b): ethoxylated trimethylolpropane triacrylate, neopentyl glycol diacrylate, trimethylolpropane triacrylate;
filling: bentonite, silicon dioxide, calcium carbonate, magnesium carbonate and polyethylene wax;
initiator: 2,4, 5-trimethylbenzoyl-diphenylphosphine oxide, polytetramethylene glycol 250 bis (2-carboxymethoxythioxanthone) ester, isooctyl p-dimethylaminobenzoate, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) butanone, a polymer of benzophenone derivatives, a mixture of benzophenone-based polymers.
The UV gloss oil formed by the components is used as the thinner coated on the surface of a plane product after pattern imprinting transfer, so that the effect of improving the surface smoothness and brightness of the plane product can be achieved, and the UV gloss oil can be used for achieving the effect of enabling a code-sprayed pattern to be more firmly adhered to the surface of the gloss oil under the action of ultraviolet rays in the UV drying process.
In the printing method for enhancing the inkjet printing adhesion on the gloss oil surface according to the present invention, in a preferred embodiment of the printing method, in the UV gloss oil, the ratio of resin: monomer (b): filling: the initiator is (40-55%): (10-15%): (3-10%): (4-10%). In this embodiment, the composition ratio of the UV varnish is preferably. In actual use, the proportions of the components can be specifically adjusted according to the consideration of smoothness, surface brightness, adhesion effect and the like in use.
In a preferred embodiment of the printing method for enhancing the code-spraying adhesion on the surface of the gloss oil, in the UV gloss oil, the ratio of the respective internal components in the resin, the monomer, the filler and the initiator is equal to the ratio of the components. The specific materials in the various components can be prepared in an equivalent component distribution ratio mode, and the specific proportioning requirements can be adjusted according to the requirements of different surface effects.
In the above printing method for enhancing the inkjet printing adhesion on the gloss oil surface according to the present invention, in the step three, the UV drying is performed by irradiating ultraviolet light and visible light with medium and short wavelength. The UV gloss oil can generate the effect of improving the surface sprayed code adhesive force under the irradiation of ultraviolet rays, and the irradiation of light rays in medium and short wave ranges is adopted. The change of drying speed and surface performance of the controller is effectively controlled.
In the above printing method for strengthening the adhesion of the inkjet code on the surface of the gloss oil, in a preferred embodiment of the printing method, the wavelength of the irradiation light is 300-800 nm, in the irradiation process, the irradiation light is composed of ultraviolet light below 400 nm and visible light above 400 nm, the irradiation mode is continuous irradiation of the ultraviolet light, and the irradiation mode is that the irradiation of the visible light is 1 second at intervals of 1 second. Through keeping shining of ultraviolet light continuously, can reach UV drying and UV light promotion plane product surface adhesion property purpose, the intermittent type of cooperation visible light shines simultaneously, can control dry speed and effect effectively, and of course, the time that the intermittent type shines can be specifically set for as required. In the visible light irradiation part, the change of the surface appearance of the UV gloss oil can be further changed by enhancing the irradiation intensity of the visible light, so that the UV gloss oil becomes an aging effect with darker color for the use of a specific product artistic effect.
The printing method for strengthening the code spraying adhesive force on the gloss oil surface is characterized in that the step four is started in the UV drying process of the step three. In a preferred mode, the code spraying pattern is executed in the UV drying process, that is, after the thinner is dried for a period of time, the code spraying printing is started, and when the code spraying is finished, the UV drying is still continued until the UV drying process is finished. Therefore, the code spraying patterns obtained through practical tests are rubbed by a common paperboard and cannot easily fall off. Has stronger adhesive ability than the prior code spraying effect.
Through effect experiment many times, adopt different objects to carry out the contact scraping to spraying two-dimensional code, synthesize average result as follows:
according to the printing method for strengthening the jet ink adhesive force on the gloss oil surface, white ink printing is completed through offset printing, then the thinner is coated, and then the thinner is subjected to UV illumination treatment, so that the surface tension of the gloss oil is changed, the subsequent jet ink printing has stronger adhesive force, and compared with the prior art, the printing method has higher stability, meets higher quality requirements, and is not easy to fall off. The invention can realize better adhesive force effect than the prior art without additional manpower or material resources, so that the sprayed code can not easily fall off and has good stability; not only improves the product quality, but also has low improvement cost, and greatly improves the market competitiveness of the code spraying product.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should fall within the protection scope of the invention.
Claims (7)
1. A printing method for strengthening sprayed code adhesion on a gloss oil surface is characterized by comprising the following steps:
spraying ink on a plane product, and carrying out offset printing and laser pattern imprinting cold transfer;
coating a thinner on the surface of the plane product after offset printing;
step three, carrying out UV drying on the plane product coated with the thinner;
and fourthly, carrying out code spraying printing on the surface of the dried planar product.
2. The printing method of claim 1, wherein the thinner is a UV varnish, and the components of the UV varnish comprise:
resin: acrylic acid modified rosin esters;
monomer (b): ethoxylated trimethylolpropane triacrylate, neopentyl glycol diacrylate, trimethylolpropane triacrylate;
filling: bentonite, silicon dioxide, calcium carbonate, magnesium carbonate and polyethylene wax;
initiator: 2,4, 5-trimethylbenzoyl-diphenylphosphine oxide, polytetramethylene glycol 250 bis (2-carboxymethoxythioxanthone) ester, isooctyl p-dimethylaminobenzoate, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) butanone, a polymer of benzophenone derivatives, a mixture of benzophenone-based polymers.
3. The printing method for enhancing the code-spraying adhesion of the gloss oil surface according to claim 2, wherein in the UV gloss oil, the ratio of resin: monomer (b): filling: the initiator is (40-55%): (10-15%): (3-10%): (4-10%).
4. The printing method of claim 3, wherein the UV varnish comprises the resin, the monomer, the filler and the initiator in equal proportions.
5. The printing method for enhancing the code-spraying adhesion of gloss oil surface according to any one of claims 1 to 4, wherein in the third step, the UV drying is drying by ultraviolet light and visible light irradiation with medium and short wave.
6. The printing method of claim 5, wherein the wavelength of the irradiation light is 300-800 nm, and the irradiation light comprises an ultraviolet light below 400 nm and a visible light above 400 nm, and the irradiation is performed in a manner that the ultraviolet light is continuously irradiated and the visible light is irradiated for 1 second at an interval of 1 second.
7. The printing method for enhancing inkjet adhesion of gloss oil surface according to claim 1, wherein the fourth step is initiated during the third step UV drying process.
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| CN201911124783.3A CN110949028A (en) | 2019-11-18 | 2019-11-18 | Printing method for strengthening sprayed code adhesive force on gloss oil surface |
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| CN201911124783.3A CN110949028A (en) | 2019-11-18 | 2019-11-18 | Printing method for strengthening sprayed code adhesive force on gloss oil surface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112477458A (en) * | 2020-12-01 | 2021-03-12 | 河南金芒果印刷有限公司 | Offset printing process and printed matter |
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Application publication date: 20200403 |