CN110733233B - Printing plate processing method and application of aluminum foil - Google Patents

Printing plate processing method and application of aluminum foil Download PDF

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CN110733233B
CN110733233B CN201911083312.2A CN201911083312A CN110733233B CN 110733233 B CN110733233 B CN 110733233B CN 201911083312 A CN201911083312 A CN 201911083312A CN 110733233 B CN110733233 B CN 110733233B
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aluminum foil
printing
ink
parts
punching
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CN110733233A (en
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任亚玉
王正德
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Guangzhou Zhufeng Color Printing Paper Co ltd
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Guangzhou Zhufeng Color Printing Paper Co ltd
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/04—Printing plates or foils; Materials therefor metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N3/00—Preparing for use and conserving printing surfaces
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
    • C09D11/033—Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/10—Printing inks based on artificial resins
    • C09D11/106—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Printing Methods (AREA)

Abstract

The invention relates to a processing method and application of a printing plate of an aluminum foil, belonging to the technical field of aluminum foil printing. The method comprises the following steps: preparing printing ink: preparing aluminum foil ink simulating the color of the aluminum foil for later use; and (4) roll printing: and (3) printing the preset area on the aluminum foil by adopting the aluminum foil ink by using a gradually-changed dot type plate roller to obtain the aluminum foil ink. According to the method, the original gloss oil printing roller is changed into the gradually-changed dot type printing roller by changing the prepress plate making process, and the specially-prepared aluminum foil printing ink is used for printing, so that the color of printing reduction is extremely close to that of an aluminum foil, the requirements of customers can be met, the requirements of the printing process and post-processing can be met, the consumption of gloss oil is greatly reduced, and the working environment of a workshop can be well improved.

Description

Printing plate processing method and application of aluminum foil
Technical Field
The invention relates to the technical field of aluminum foil printing, in particular to a method for processing a printing plate of an aluminum foil and application thereof.
Background
The aluminum foil itself is a very soft metal material, and has no stiffness like the cut object such as paper, so the aluminum foil must be punched only by printing a layer of ink thereon. However, in order to locally present the metallic luster and the color of the aluminum foil during the design of some aluminum foil products, the aluminum foil is usually hollowed out at the position during the printing, that is, the aluminum foil is directly leaked without printing ink.
If the part of the aluminum foil exposed by the gap is just on the finished product line, because the aluminum foil without printing ink can not be punched, in order to meet the requirement of the printing process, a gloss oil color seat is generally added during plate making at present to meet the post-processing process. The gravure gloss oil is colorless and transparent, so that overprinting cannot be tracked, and even though the original design only needs to locally present metal texture, the gravure gloss oil can only be printed fully, so that the consumption of the gloss oil is greatly increased by the process. And because the main component of gravure gloss oil is resin, the odor generated in the processing process of the finished aluminum foil product is large, the printing operation environment is obviously worsened before, and psychological discomfort can be brought to printing operators.
Disclosure of Invention
In view of the above, it is desirable to provide a method for processing an aluminum foil printing plate, which can maintain the color of the aluminum foil, greatly reduce the consumption of gloss oil, and improve the working environment of a workshop.
A method for processing a printing plate of an aluminum foil comprises the following steps:
preparing printing ink: preparing aluminum foil ink simulating the color of the aluminum foil for later use;
and (4) roll printing: and (3) printing the preset area on the aluminum foil by adopting the aluminum foil ink by using a gradually-changed dot type plate roller to obtain the aluminum foil ink.
According to the method, the original gloss oil printing roller is changed into the gradually-changed dot printing roller by changing the prepress plate making process, and the specially-prepared aluminum foil ink is used for printing, so that the color of printing reduction is extremely close to that of an aluminum foil, the requirements of customers can be met, the requirements of the printing process and post-processing can be met, the consumption of gloss oil is greatly reduced, and the working environment of a workshop can be well improved.
In one embodiment, in the rolling step, the predetermined region is a region designed to embody a texture of aluminum foil.
In one embodiment, the preset area comprises a punching area and an adjacent area according to a preset punching position, the preset punching position is positioned in the punching area, and the adjacent area is connected with other areas of the aluminum foil;
in the roll printing step, in the printing of the gradient dot type plate roller, the dot number is gradually transited from 80-100% (preferably 90%) of the punching area to 20-40% (preferably 30%) of the adjacent area.
In one embodiment, in the rolling step, the transition is a uniform decrease from the punched edge of the punched area to the adjacent edge of the adjacent area.
Specifically, a simulated gradual change from 90% special ink to 30% special ink can be made from the edge needing to be punched to the edge of an adjacent area by using a Gaussian fuzzy and curve tool of Photoshop software, 90% of aluminum foil ink ensures that the edge of a product is punched smoothly, and 30% of special ink ensures that the special ink of the product is transited naturally and is not abrupt. Therefore, the effect that the visual effect of the whole silver leaking part (the preset area) printed with a layer of aluminum foil ink is extremely close to that of the aluminum foil raw material is achieved.
In one embodiment, the aluminum foil ink comprises the following raw materials in parts by weight:
15-25 parts of slow-drying diluent
20-30 parts of grey ink
45-65 parts of glazing oil.
The aluminum foil ink is printed on an aluminum foil by adding the varnish into the gray ink to simulate the color of the aluminum foil and then by a simulated gradual change method, so that the effect of weakening the visual effect is achieved, and the printing effect is extremely close to the color of the aluminum foil. However, the inventor finds in practice that after the original full-plate solid varnish is replaced by the gradient ink, the plate is easy to dry and block in the printing process due to the thin ink layer of the gradient ink, and the volatility of the ink is reduced by adding the slow-drying thinner into the ink, so that the problem that the plate is easy to dry and block in the printing process is solved.
In one embodiment, the slow-drying diluent is prepared from the following raw materials in parts by weight:
Figure BDA0002264622360000021
in one embodiment, the grey ink is composed of the following raw materials in parts by weight:
Figure BDA0002264622360000022
in one embodiment, the glazing oil consists of the following raw materials in parts by weight:
25-35 parts of resin
55-68 parts of solvent
And 5-10 parts of an auxiliary agent.
In one embodiment, the method for processing the printing plate of the aluminum foil further comprises a punching step, wherein in the punching step, the grinding frequency of the cutting die is controlled to be 150 and 200 ten thousand pieces/time. Because the ink layer of gradual change formula site is thin, the die-cut face appears not smooth easily during die-cut and leads to the time mark of pasting, through the frequency of whetting a knife that increases the cutting die, can reach die-cut face and keep smooth effect.
The invention also discloses application of the processing method of the aluminum foil printing plate in printing aluminum caps. Such as beer bottle aluminum caps, etc.
Compared with the prior art, the invention has the following beneficial effects:
according to the method for processing the printing plate of the aluminum foil, the original gloss oil printing roller is changed into the gradually-changed dot type printing roller by changing the plate making process before printing, and the specially-prepared aluminum foil ink is used for printing, so that the color of printing reduction is extremely close to that of the aluminum foil, the requirements of customers can be met, the requirements of the printing process and post-processing can be met, meanwhile, the consumption of gloss oil is greatly reduced, and the working environment of a workshop can be well improved.
Drawings
FIG. 1 is a schematic diagram of a simulated gradation of ink in example 1;
FIG. 2 is a simulation diagram of the product of example 1;
FIG. 3 is a simulation diagram of a gloss oil printed product according to the conventional method in example 1
FIG. 4 is a photograph of an aluminum cap product processed in example.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The following raw materials were all commercially available.
Example 1
A method for processing a printing plate of an aluminum foil comprises the following steps:
firstly, ink is prepared.
Aluminum foil ink simulating the color of an aluminum foil is prepared according to the following formula in parts by weight for later use.
20 parts of slow-drying diluent
Gray ink 24 parts
56 parts of gloss oil.
Wherein the components of the slow drying diluent (manufacturer: model SD-93MS of Shengchang ink Co., Ltd.) are shown in the following table:
TABLE 1 ingredient Table of Slow drying Diluent
Chemical name Content (wt%)
N-propyl acetate 20
Acetic acid butyl ester 15
Isopropanol (I-propanol) 45
Propylene glycol methyl ether acetate 20
The composition of the gray ink (manufacturer: Shengchang ink Co., Ltd., model SD-382) is shown in the following table:
TABLE 2 off-white ink ingredient Table
Chemical name Content (wt%)
Cellulose resin 8
Polyamide resin 14
595 titanium white powder 6
Pigment yellow PY14 0.1
Phthalocyanine blue 0.1
Polyethylene wax 3
Dispersant (C)10H7O3S-.CH2O.Na+) 4
Ethyl acetate 2.8
N-propyl acetate 22
Acetic acid butyl ester 20
Isopropanol (I-propanol) 20
The components of the gloss oil (manufacturer: model SD-07 of Shengchang ink Co., Ltd.) are shown in the following table:
TABLE 3 gloss oil ingredient Table
Figure BDA0002264622360000041
And secondly, roll printing.
In order to make the visual effect of the whole silver leaking part (the original hollow part, which is a preset area) very close to that of the aluminum foil raw material after printing a layer of aluminum foil ink, a Gaussian blur and curve tool in photoshop is used for simulating and gradually changing a dot from 90% aluminum foil ink to 30% aluminum foil ink from the right edge and the lower edge of a pattern (namely the edge of a finished product line) needing silver leaking to the left edge and the upper edge respectively, as shown in figure 1, the aluminum foil ink with 90% dots ensures that the edge of the product is punched smoothly, and the aluminum foil ink with 30% dots ensures that the product ink is transited naturally and is not abrupt.
And thirdly, punching.
The knife grinding frequency of the knife mold is controlled to be 150 and 200 ten thousand per time.
In this embodiment, because the ink layer of gradual change formula site is thin, the die-cut face appears not smooth easily during die-cut and leads to the time marking dart, through the frequency of whetting a knife that increases the cutting die, can reach die-cut face and keep smooth effect.
The aluminum cap is processed by the aluminum foil printing plate processing method of the embodiment, the simulation diagram of the obtained product is shown in fig. 2, the special ink in the diagram indicates that the aluminum foil ink is used for printing, and the simulation diagram of the product printed by the gloss oil by the traditional method is shown in fig. 3, so that the two effects are similar.
Meanwhile, the aluminum cap product processed by the method for processing the aluminum foil printing plate of the embodiment is photographed, and compared with the aluminum foil raw material as shown in fig. 4, the color of the aluminum foil can be maintained and the visual effect is consistent by the processing method.
Example 2
A method of printing an aluminum foil, substantially the same as in example 1, except that: the aluminum foil ink was not added with a slow drying diluent.
When the method is used for printing, the problem that the printing ink is volatilized to dry and block the board sometimes occurs.
Comparative example 1
A method of printing an aluminum foil, substantially the same as in example 1, except that: roll printing was done without a gradient print, but with 90% dots full.
The product obtained by printing with the method has unnatural ink printing transition parts.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (5)

1. A method for processing a printing plate of an aluminum foil is characterized by comprising the following steps:
preparing printing ink: preparing aluminum foil ink simulating the color of the aluminum foil for later use;
and (4) roll printing: aiming at a preset area on the aluminum foil, the preset area comprises a punching area and an adjacent area according to a preset punching position, the preset punching position is positioned in the punching area, the adjacent area is connected with other areas of the aluminum foil, and the aluminum foil is obtained by printing with the aluminum foil ink by a gradient dot type plate roller; in the printing of the gradually-changed screen dot type plate roller, the number of screen dots is gradually transited from 80-100% of a punching area to 20-40% of an adjacent area, and the transition is that the punching edge of the punching area is uniformly reduced to the adjacent edge of the adjacent area;
the aluminum foil ink comprises the following raw materials in parts by weight:
15-25 parts of slow-drying diluent
20-30 parts of grey ink
45-65 parts of glazing oil
The grey ink is prepared from the following raw materials in parts by weight:
Figure FDA0002918119830000011
the glazing oil is prepared from the following raw materials in parts by weight:
25-35 parts of resin
55-68 parts of solvent
And 5-10 parts of an auxiliary agent.
2. The method for processing the aluminum foil printing plate as claimed in claim 1, wherein in the rolling step, the predetermined region is a region designed to embody a texture of the aluminum foil.
3. The aluminum foil printing plate processing method of claim 1, wherein the slow drying diluent is composed of the following raw materials in parts by weight:
Figure FDA0002918119830000012
4. the method for processing the printing plate of the aluminum foil as recited in any one of claims 1-3, further comprising a punching step, wherein the cutting frequency of the cutting die is controlled to be 150 and 200 ten thousand per time.
5. Use of the method for processing a printing form of aluminum foil according to any one of claims 1 to 4 for printing aluminum caps.
CN201911083312.2A 2019-11-07 2019-11-07 Printing plate processing method and application of aluminum foil Active CN110733233B (en)

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