CN114163918A - Printing oil capable of replacing packaging matte film and printing process - Google Patents
Printing oil capable of replacing packaging matte film and printing process Download PDFInfo
- Publication number
- CN114163918A CN114163918A CN202111435050.9A CN202111435050A CN114163918A CN 114163918 A CN114163918 A CN 114163918A CN 202111435050 A CN202111435050 A CN 202111435050A CN 114163918 A CN114163918 A CN 114163918A
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- Prior art keywords
- oil
- folding
- printing
- base oil
- wear
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- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- 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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Wrappers (AREA)
Abstract
The invention discloses printing oil capable of replacing a packaging dummy film, which comprises printing oil, wherein the printing oil comprises folding-resistant base oil and wear-resistant surface oil; the folding-resistant base oil is coated on the surface of a product, a layer of wear-resistant surface oil is coated on the surface of the folding-resistant base oil, the folding-resistant base oil is used for enabling a finished product to achieve the purpose of folding resistance, and then a layer of wear-resistant base oil is coated to achieve the purpose of wear resistance; the invention replaces the film coating process, and compared with the film coating cost, the surface treatment cost is reduced to some extent, which is beneficial to the recovery of the discarded packing boxes, increases the recovery income, responds to the call of the policy of environmental protection and plastic removal, and improves the enterprise competitiveness.
Description
Technical Field
The invention relates to the field of package printing, in particular to a package surface treatment process.
Background
At present, the pace of plastic removal is being tightened at home and abroad, and particularly, the strategic requirements of complete plastic removal are indicated by 500-strong enterprises in part of the world in 2030. White contamination presents a catastrophic hazard to our planet even though experts have detected the composition of plastic particles in animals. Common plastics such as PP/PE cause great pollution to the environment because of the name of 'ancient invariance', and the plastics can exist in the ground for hundreds of years without degradation, thereby influencing the land quality and the plant growth.
The packaging film is a commonly used surface treatment method at present, most of the packaging film uses a BOPP film, the packaging paper is completely biodegradable, but the recovery rate of the film-coated packaging paper is seriously reduced because the film and the paper are difficult to separate after the film is coated, so that the recovery rate of the film-coated packaging paper is influenced, and therefore, a method which is environment-friendly and does not influence the recovery of the packaging paper is needed to be developed to replace the existing film coating scheme.
Disclosure of Invention
Technical problem to be solved
A printing oil and a printing process capable of replacing a packaging matte film are developed, so that the packaging matte film can have the physical property of a film.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the printing oil capable of replacing a packaging matte film comprises printing oil, wherein the printing oil comprises folding-resistant base oil and wear-resistant surface oil;
the folding-resistant base oil is coated on the surface of a product, and a layer of wear-resistant surface oil is coated on the surface of the folding-resistant base oil.
Preferably, the folding-resistant base oil is milky white, 80 +/-15 s of viscosity for four cups, 42% of solid content and weak alkaline.
Preferably, the printing oil comprises 38-45 wt% of polyurethane modified acrylate emulsion, 1-3 wt% of azobenzene, 2-8 wt% of auxiliary agent and 55-60 wt% of water.
Preferably, the auxiliary agents include, but are not limited to, the following: water-based flatting agent, water-based defoaming agent, matte powder, thickening agent, film-forming agent and wetting agent.
A printing process capable of replacing a packaging matte film comprises the following manufacturing steps:
the method comprises the following steps: printing image and text contents by a printer, and coating folding-resistant base oil on connecting lines, wherein the anilox roller is 80 lines, and the coating weight is 14cm3/m2Carrying out infrared drying at the printing speed of 8000pcs/h, and naturally drying for 24 h;
step two: the wear-resistant surface oil is coated on the flat machine, the thickness of the coated oil needs to be adjusted because the coating roller is a rubber roller, and the coating amount is ensured to be 26cm in order to ensure the folding resistance of the flat machine3/m2Firstly, carrying out infrared drying;
and step three, performing surface pit and die cutting on the printed sheet after oil passing, and judging the folding resistance of the printed sheet through the surface pit and the die cut printed sheet, wherein the purpose of the surface pit is that the folding resistance of the printed sheet is slightly poor after the surface pit is formed, and the reverse folding line needs to be designed into a reverse pressing line, the width of the pressing line is about 5cm, so that the possibility of color explosion of the printed sheet can be reduced.
Preferably, before the first step, 3% of curing agent is added into the wear-resistant surface oil, the mixture is homogenized by a mechanical stirrer, and the standing time is not more than 48 hours after the preparation is finished.
Preferably, the method further comprises the following testing steps:
(1) and (3) testing a finished product: placing the finished product at constant temperature and humidity for 24h, and testing the adhesiveness, the wear-resisting times, the matte degree, the rupture and explosion resistance, the drop resistance and the transportation;
(2) adhesion: performing adhesion test by using a 3M600 adhesive tape, wherein the surface coating does not drop completely;
(3) wear-resisting times: under the condition of 4LB kraft paper test, the color can not be lost for 2000 times, and the falling of the surface coating can be ignored;
(4) degree of dumb: testing the degree of matte at the white position of the surface by a 75-degree gloss meter, wherein the degree of matte is not more than 40 degrees;
(5) folding resistance and explosion prevention: the positive pressure line is repeatedly folded forward for more than 5 times to avoid color explosion, and the negative pressure line is folded backward for more than 3 times to avoid color explosion;
(6) and (3) aging test: 6 finished products are stacked together and tested for 48 hours at 60 ℃/90% RH without anti-sticking or sticking phenomenon;
(7) and (3) drop resistance test: placing the product in a packaging box, and performing drop test on edges, edges and corners and surfaces from a height of 1m, so that the product in the packaging box cannot be broken, and the phenomena of obvious corner breaking and edge breaking cannot occur;
(8) and (3) transportation testing: in the simulated transportation test, the scratch phenomenon can not occur.
(III) advantageous effects
Compared with the prior art, the invention has the following beneficial effects:
1. the film coating process is replaced, and the surface treatment cost is reduced to some extent relative to the film coating cost;
2. the method is beneficial to recycling the discarded packing boxes and increasing the recycling benefit;
3. and the method responds to the call of the environmental protection plastic removal policy and improves the enterprise competitiveness.
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.
Example one
The printing oil comprises folding-resistant base oil and wear-resistant surface oil, wherein the traditional film is hard to simultaneously give consideration to wear resistance and folding resistance, and under most conditions, the wear resistance is better, and the folding resistance is poorer. The folding-resistant base oil is coated on the surface of a product, a layer of wear-resistant surface oil is coated on the surface of the folding-resistant base oil, the color of the folding-resistant base oil is milky, the viscosity of the folding-resistant base oil is 80 +/-15 s, the solid content of the folding-resistant base oil is 42%, and the folding-resistant base oil is alkalescent. The folding-resistant base oil is milky white, the viscosity of the folding-resistant base oil is 80 +/-15 s after being coated in four cups, the solid content of the folding-resistant base oil is 42%, and the folding-resistant base oil is alkalescent. The folding-resistant base oil is used for enabling a finished product to achieve the folding-resistant purpose, and then a layer of wear-resistant base oil is coated to achieve the wear-resistant purpose, wherein the dosage of the wear-resistant surface oil needs to be particularly noticed, and the dosage of the wear-resistant surface oil can seriously influence the folding resistance.
The printing oil comprises 38-45 wt% of polyurethane modified acrylate emulsion, 1-3 wt% of azobenzene, 2-8 wt% of auxiliary agent and 55-60 wt% of water. The auxiliary agents include, but are not limited to, the following: water-based flatting agent, water-based defoaming agent, matte powder, thickening agent, film forming agent, wetting agent and the like.
Example two
A printing process capable of replacing a packaging matte film comprises the following manufacturing steps:
the method comprises the following steps: printing image and text contents by a printer, and coating folding-resistant base oil on connecting lines, wherein the anilox roller is 80 lines, and the coating weight is 14cm3/m2Carrying out infrared drying at the printing speed of 8000pcs/h, and naturally drying for 24 h;
step two: the wear-resistant surface oil is coated on the flat machine, the thickness of the coated oil needs to be adjusted because the coating roller is a rubber roller, and the coating amount is ensured to be 26cm in order to ensure the folding resistance of the flat machine3/m2Firstly, carrying out infrared drying;
step three, performing surface pit and die cutting on the printed sheet after oil passing, and judging the folding resistance of the printed sheet through the surface pit and the die cut printed sheet, wherein the purpose of the surface pit is that the folding resistance of the printed sheet is slightly poor after the surface pit is formed, the reverse folding line needs to be designed into a reverse pressing line, the width of the pressing line is about 5cm, and the possibility of color explosion of the printed sheet can be reduced
Before the first step, 3 percent of curing agent is added into the wear-resistant surface oil, the mixture is uniformly mixed by a mechanical mixer, and the standing time is not more than 48 hours after the preparation is finished.
A printing process capable of replacing a packaging matte film further comprises the following testing steps:
(1) and (3) testing a finished product: placing the finished product for 24 hours under constant temperature and humidity, and testing the adhesiveness, the wear-resisting times, the matte degree, the rupture and explosion resistance, the drop resistance, the transportation test and the like;
(2) adhesion: performing adhesion test by using a 3M600 adhesive tape, wherein the surface coating does not drop completely;
(3) wear-resisting times: under the condition of 4LB kraft paper test, the color can not be lost for 2000 times, and the falling of the surface coating can be ignored;
(4) degree of dumb: testing the degree of matte at the white position of the surface by a 75-degree gloss meter, wherein the degree of matte is not more than 40 degrees;
(5) folding resistance and explosion prevention: the positive pressure line is repeatedly folded forward for more than 5 times to avoid color explosion, and the negative pressure line is folded backward for more than 3 times to avoid color explosion;
(6) and (3) aging test: 6 finished products are stacked together and tested for 48 hours at 60 ℃/90% RH without anti-sticking or sticking phenomenon;
(7) and (3) drop resistance test: placing the product in a packaging box, and performing drop test on edges, edges and corners and surfaces from a height of 1m, so that the product in the packaging box cannot be broken, and phenomena such as obvious corner breaking and edge breaking cannot occur;
(8) and (3) transportation testing: and in the simulated transportation test, phenomena such as scratching and the like can not occur.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The printing oil capable of replacing the packaging matt film comprises printing oil and is characterized in that: the printing oil comprises folding-resistant base oil and wear-resistant surface oil;
the folding-resistant base oil is coated on the surface of a product, and a layer of wear-resistant surface oil is coated on the surface of the folding-resistant base oil.
2. The printing oil capable of replacing a packaging matte film according to claim 1, wherein: the folding-resistant base oil is milky white, the viscosity of the folding-resistant base oil is 80 +/-15 s after being coated in four cups, the solid content of the folding-resistant base oil is 42%, and the folding-resistant base oil is alkalescent.
3. The printing oil capable of replacing a packaging matte film according to claim 2, wherein: the printing oil comprises 38-45 wt% of polyurethane modified acrylate emulsion, 1-3 wt% of azobenzene, 2-8 wt% of auxiliary agent and 55-60 wt% of water.
4. The printing oil capable of replacing a packaging matte film according to claim 3, wherein: the auxiliary agents include, but are not limited to, the following: water-based flatting agent, water-based defoaming agent, matte powder, thickening agent, film-forming agent and wetting agent.
5. A printing process for an alternative packaging matte film according to any of claims 1-4, wherein: the method comprises the following manufacturing steps:
the method comprises the following steps: printing machine for printing pictures and textsContent, connecting lines are coated with folding-resistant base oil, wherein an anilox roller is 80 lines, and the coating weight is 14cm3/m2Carrying out infrared drying at the printing speed of 8000pcs/h, and naturally drying for 24 h;
step two: the wear-resistant surface oil is coated on the flat machine, the thickness of the coated oil needs to be adjusted because the coating roller is a rubber roller, and the coating amount is ensured to be 26cm in order to ensure the folding resistance of the flat machine3/m2Firstly, carrying out infrared drying;
and step three, performing surface pit and die cutting on the printed sheet after oil passing, and judging the folding resistance of the printed sheet through the surface pit and the die cut printed sheet, wherein the purpose of the surface pit is that the folding resistance of the printed sheet is slightly poor after the surface pit is formed, and the reverse folding line needs to be designed into a reverse pressing line, the width of the pressing line is about 5cm, so that the possibility of color explosion of the printed sheet can be reduced.
6. A printing process for an alternative packaging matte film according to claim 5, wherein: before the first step, 3 percent of curing agent is added into the wear-resistant surface oil, the mixture is uniformly mixed by a mechanical mixer, and the standing time is not more than 48 hours after the preparation is finished.
7. A printing process for an alternative packaging matte film according to claim 6, wherein: the method also comprises the following testing steps:
(1) and (3) testing a finished product: placing the finished product at constant temperature and humidity for 24h, and testing the adhesiveness, the wear-resisting times, the matte degree, the rupture and explosion resistance, the drop resistance and the transportation;
(2) adhesion: performing adhesion test by using a 3M600 adhesive tape, wherein the surface coating does not drop completely;
(3) wear-resisting times: under the condition of 4LB kraft paper test, the color can not be lost for 2000 times, and the falling of the surface coating can be ignored;
(4) degree of dumb: testing the degree of matte at the white position of the surface by a 75-degree gloss meter, wherein the degree of matte is not more than 40 degrees;
(5) folding resistance and explosion prevention: the positive pressure line is repeatedly folded forward for more than 5 times to avoid color explosion, and the negative pressure line is folded backward for more than 3 times to avoid color explosion;
(6) and (3) aging test: 6 finished products are stacked together and tested for 48 hours at 60 ℃/90% RH without anti-sticking or sticking phenomenon;
(7) and (3) drop resistance test: placing the product in a packaging box, and performing drop test on edges, edges and corners and surfaces from a height of 1m, so that the product in the packaging box cannot be broken, and the phenomena of obvious corner breaking and edge breaking cannot occur;
(8) and (3) transportation testing: in the simulated transportation test, the scratch phenomenon can not occur.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111435050.9A CN114163918A (en) | 2021-11-29 | 2021-11-29 | Printing oil capable of replacing packaging matte film and printing process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111435050.9A CN114163918A (en) | 2021-11-29 | 2021-11-29 | Printing oil capable of replacing packaging matte film and printing process |
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| Publication Number | Publication Date |
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| CN114163918A true CN114163918A (en) | 2022-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111435050.9A Pending CN114163918A (en) | 2021-11-29 | 2021-11-29 | Printing oil capable of replacing packaging matte film and printing process |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192968A (en) * | 2020-08-24 | 2021-01-08 | 东莞市美盈森环保科技有限公司 | Printing method for replacing PP (polypropylene) scratch-resistant matte film coated on surface with online printing water and oil |
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2021
- 2021-11-29 CN CN202111435050.9A patent/CN114163918A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192968A (en) * | 2020-08-24 | 2021-01-08 | 东莞市美盈森环保科技有限公司 | Printing method for replacing PP (polypropylene) scratch-resistant matte film coated on surface with online printing water and oil |
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Address after: Room 607, No. 14, Jinniu Road, Wangniudun, Wangniudun Town, Dongguan City, Guangdong 523000 Applicant after: Guangdong Gaoyi Packaging Technology Co.,Ltd. Address before: 523000 Building 2, Weizhi Industrial Park, Xincun Road, Jiaoshe village, Dongkeng Town, Dongguan City, Guangdong Province Applicant before: Guangdong Gaoyi Packaging Technology Co.,Ltd. |