CN114229230A - Food packaging anti-fog film and surface printing process thereof - Google Patents
Food packaging anti-fog film and surface printing process thereof Download PDFInfo
- Publication number
- CN114229230A CN114229230A CN202111235175.7A CN202111235175A CN114229230A CN 114229230 A CN114229230 A CN 114229230A CN 202111235175 A CN202111235175 A CN 202111235175A CN 114229230 A CN114229230 A CN 114229230A
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- Prior art keywords
- printing
- film
- ink layer
- food packaging
- antifogging
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Links
- 235000013305 food Nutrition 0.000 title claims abstract description 53
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000003854 Surface Print Methods 0.000 title claims abstract description 19
- 238000007639 printing Methods 0.000 claims abstract description 103
- 239000011253 protective coating Substances 0.000 claims abstract description 58
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 230000000694 effects Effects 0.000 claims abstract description 18
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 65
- 239000011241 protective layer Substances 0.000 claims description 17
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000002519 antifouling agent Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000013508 migration Methods 0.000 abstract description 4
- 230000005012 migration Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 239000002985 plastic film Substances 0.000 abstract description 2
- 229920006255 plastic film Polymers 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 102
- 238000007789 sealing Methods 0.000 description 17
- 239000000047 product Substances 0.000 description 15
- 239000013039 cover film Substances 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 230000009246 food effect Effects 0.000 description 2
- 239000002362 mulch Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/42—Applications of coated or impregnated materials
-
- 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
- B41M1/26—Printing on other surfaces than ordinary paper
- B41M1/30—Printing on other surfaces than ordinary paper on organic plastics, horn or similar materials
-
- 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
- B41M5/0011—Pre-treatment or treatment during printing of the recording material, e.g. heating, irradiating
-
- 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
-
- 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
- B41M7/0027—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or layers by lamination or by fusion of the coatings or layers
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Wrappers (AREA)
Abstract
The application discloses an antifogging film for food packaging and a surface printing process thereof, and relates to the technical field of surface printing of plastic films for food packaging; an antifogging film for food packaging comprises a printing base film with an antifogging effect, wherein an ink layer is printed on one side of the printing base film in the thickness direction, and a protective coating for blocking ink migration is coated on the same side of the printing base film as the ink layer and covers the ink layer; a surface printing process of an antifogging film for food packaging; it includes: s1, forming a printing base film; s2, printing an ink layer; s3, coating a protective coating; s4, rolling the film, and standing for a certain time at room temperature; and S5, performing an antifogging test. The application has the effects of ensuring the anti-fog effect of the food packaging anti-fog film, saving the production cost of enterprises and improving the use effect of the food packaging anti-fog film finished product.
Description
Technical Field
The application relates to the technical field of surface printing of food packaging plastic films, in particular to an antifogging film for food packaging and a surface printing process thereof.
Background
In the processes of production, storage, cold chain transportation and refrigerated sales of fresh foods, a sealed container is formed by a plastic container and a printing cover film to carry out sealed packaging on the products; because the product in the sealed container has a temperature difference with the external environment, water vapor in the container condenses into tiny water drops on the inner surface of the printing cover film, so that the printing cover film is in a fog surface shape, a ghost phenomenon is caused, and the appearance of the product is seriously influenced. Thus, printed lidding films in such packaging forms are generally required to have anti-fog properties.
Currently, the mulch film manufacturing industry typically processes printed mulch films using a coextrusion process; in the related art, a printing cover film structure comprises a printing base film and a heat-seal film with an anti-fog function, wherein an ink pattern is printed on one side surface of the printing base film in the thickness direction, and the heat-seal film is fixedly attached to one side surface, deviating from a printing surface, of the printing base film in the thickness direction. After the production of the printing cover film is finished, workers roll the finished product of the printing cover film, so that the printing cover film is convenient to store and transport; when the food container is used, one side of the heat-seal film, which is deviated from the printing base film, is used as a heat-seal surface to be heat-sealed at the opening of the food container, so that the food container is sealed with the food container.
In view of the above-mentioned related technologies, the inventors believe that there is a need for improvement in that, in a film roll state, an ink pattern of a print-top film is in direct contact with a heat-seal surface of a heat-seal film, a trace amount of small-molecule auxiliary agent is inevitably precipitated in the ink of the ink pattern, and the precipitate destroys the surface tension of the heat-seal surface of the heat-seal film, and further destroys the antifogging function of the print-top film, thereby affecting the use effect of the print-top film.
Disclosure of Invention
In order to guarantee the anti-fog effect of the printing cover film and guarantee normal use of the printing cover film, the application provides the food packaging anti-fog film and the surface printing process thereof.
In a first aspect, the application provides an antifogging film for food packaging, which adopts the following technical scheme:
the food packaging antifogging film comprises a printing base film with an antifogging effect, wherein an ink layer is printed on one side of the printing base film in the thickness direction, and a protective coating for blocking ink migration is coated on the same side of the printing base film as the ink layer and covers the ink layer.
By adopting the technical scheme, the heat-sealing surface of the base film to be printed is contacted with the printing surface of the printing ink layer under the state of the film roll, and the micromolecule educt in the protective coating blocking ink layer migrates to the heat-sealing surface of the base film to be printed, so that the condition that the surface tension of the heat-sealing surface of the base film to be printed is damaged by the ink layer is effectively reduced, and the anti-fog effect of the food packaging anti-fog film is guaranteed.
Preferably, the protective coating is uniformly coated on the surface of the printing base film.
By adopting the technical scheme, the protective coating is uniformly coated on one side of the printing surface of the base printing film, which is beneficial to improving the flatness of the surface of the finished product of the food packaging antifogging film, thereby improving the surface quality of the finished product; meanwhile, the large-area protective coating is beneficial to improving the isolation effect of the ink layer and reducing the leakage of micromolecule educt in the ink layer.
Preferably, the protective coating is overprinted on the ink layer.
By adopting the technical scheme, the protective coating is only overprinted on the surface of the ink layer, so that the thickness of an anti-fog film finished product is reduced, the food packaging appearance is more transparent, and the using effect is improved; meanwhile, the coating dosage of the protective coating is reduced when the food packaging antifogging film is formed, and further the production cost of an enterprise is reduced.
In a second aspect, the application provides a surface printing process for an antifogging film for food packaging, which adopts the following technical scheme:
a surface printing process of an antifogging film for food packaging comprises the following steps:
s1, forming a printing base film;
s2, printing an ink layer on one side of the thickness direction of the base printing film;
s3, coating protective paint on one side of the printing surface of the base film to be printed and covering an ink layer;
s4, rolling the film, and standing for a certain time at room temperature;
and S5, performing an antifogging test.
By adopting the technical scheme, in actual production, a printing base film is formed firstly, and then an ink layer is printed on one side in the thickness direction of the printing base film; after the printing ink layer is dried, coating a protective coating on the surface of the printing ink layer; after the protective coating is dried, a protective coating for preventing micromolecule educt in the printing ink layer from migrating to the heat sealing surface of the base printing film is formed, and then a finished product of the food packaging antifogging film is formed; then, working personnel roll the antifogging film into sheets and place the antifogging film at room temperature for a preset time, and then carry out an antifogging test on the finished antifogging film, and if no ghost phenomenon appears, the finished antifogging film is a qualified product and can be sold and used; the food packaging antifogging film produced by adopting the method is strict in operation and is beneficial to ensuring the antifogging effect of a finished product; meanwhile, the production process is simple, and the enterprise production cost is saved.
Preferably, the process further comprises:
s2-1, coating a protective coating on one side of the printing surface of the base film to be printed;
s2-2, performing cold treatment on the printing base film to solidify the protective coating and form a protective layer;
and S2-3, printing the ink layer on the side of the protective layer, which is far away from the base printing film.
Through adopting above-mentioned technical scheme, before printing the printing ink layer, at first set up the protective layer in printing base film printing ink layer one side, effectively reduce the interior micromolecule educt of printing ink layer and move and progressively destroy the condition emergence of heat-seal face from printing base film printing face one side to heat-seal face one side, help further guaranteeing the off-the-shelf antifogging effect of food package antifogging film.
Preferably, in S3, the protective coating is applied to the side of the protective layer on which the ink layer is printed, to form a protective coating layer and cover the ink layer.
Through adopting above-mentioned technical scheme, use the coating machine to coat the full version of protective coating in one side that the protective layer was printed on the printing ink layer, help guaranteeing that protective coating carries out the accuracy cover to the printing ink layer and establishes to the condition that effectively reduces the micromolecule educt in the printing ink layer to the migration of undertaking the heat-seal surface of base film takes place, thereby guarantees the off-the-shelf antifogging effect of food package antifogging film, promotes product quality.
Preferably, in S3, the protective coating is overprinted on the area of the drawing ink layer using a printer to form the protective coating.
Through adopting above-mentioned technical scheme, use the printing machine with the overprint of protective coating in drawing printing ink layer region, help saving protective coating, reduce this food package antifog coating manufacturing cost to reduce this food package antifog coating finished product thickness, promote this food package antifog coating's result of use.
Preferably, after the printing ink layer is printed and the protective coating is brushed, the base printing film is subjected to cold treatment.
By adopting the technical scheme, after the ink layer is printed on the protective layer, the base printing film is subjected to cold treatment, so that the solidification rate of the ink layer is accelerated; the printing base film is subjected to cold treatment after the protective coating is brushed, so that the solidification rate of the protective coating is accelerated, and the production efficiency of the food packaging antifogging film is effectively improved.
Preferably, the process further comprises: in S3, the protective coating contains a proper amount of antifogging agent.
By adopting the technical scheme, the protective coating formed by condensing the protective coating is contacted with the heat-sealing surface of the base film to be printed under the state of a film roll, so that the direct contact between the ink layer and the heat-sealing surface of the base film to be printed is reduced, and the situation that micromolecule migrates in the ink layer are separated out to the heat-sealing surface and pollute the heat-sealing surface of the anti-fog film to cause the failure of the anti-fog function of a finished product of the anti-fog film for food packaging is reduced; on the other hand, in the contact process of the protective coating and the heat-sealing surface of the base printing film, the antifogging agent in the protective coating migrates to the heat-sealing surface of the base printing film, and the antifogging function of the contact area of the heat-sealing surface of the base printing film and the protective coating is strengthened, so that the occurrence of ghost phenomenon is further reduced, and the antifogging effect of the finished product of the antifogging film for food packaging is further ensured.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the printing ink layer is printed on one side of the printing base film with the antifogging function in the thickness direction, the protective coating is coated on the printing base film, the printing ink layer is covered, the situation that the printing ink layer is in direct contact with the heat-sealing surface of the printing base film in a film roll state is reduced, the situation that micromolecule migrates in the printing ink layer are transferred to the heat-sealing surface and the surface tension of the heat-sealing surface is damaged is further reduced, the antifogging function of the heat-sealing surface is invalid, and the antifogging effect of the food packaging antifogging film is effectively guaranteed;
2. by adding a proper amount of antifogging agent into the protective coating, the antifogging effect of the contact region of the heat sealing surface and the protective coating is enhanced while the migration of small molecular substances in the ink layer is isolated by the protective coating, and the stability of the antifogging effect of the heat sealing surface of the printing base film is effectively ensured;
3. by means of cold treatment after the protective coating is coated and the ink layer is printed, the production efficiency of the food packaging anti-fog film is effectively improved.
Drawings
Fig. 1 is a schematic plan view of an antifogging film layer structure mainly embodied in the food package in the embodiment of the application.
Fig. 2 is a schematic structural diagram mainly showing the overall structure of the food packaging antifogging film in the embodiment of the application.
Fig. 3 is a flow chart mainly embodying the surface printing process of the antifogging film for food packaging in the embodiment of the present application.
Reference numerals: 1. printing a base film; 2. a protective layer; 3. an ink layer; 4. and (4) protecting the coating.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses an antifogging film for food packaging and a surface printing process thereof.
Referring to fig. 1 and 2, the food packaging anti-fog film comprises a printing base film 1 with an anti-fog effect, wherein a protective layer 2 is uniformly coated on one side of the printing base film 1 in the thickness direction, and an ink layer 3 is printed on one side of the protective layer 2, which is far away from the printing base film 1; the protective coating 4 is coated on the same side of the protective layer 2 as the ink layer 3, and the protective coating 4 covers the ink layer 3. In actual production, the protective coating 4 can be uniformly coated on the surface of the printing protective layer 2 or only overprinted on the ink layer 3.
In this embodiment of the application, the printing substrate film 1 is a CPP antifogging film with a thickness of 35 microns; certainly, the printing base film 1 can also adopt a PA/PE co-extrusion film with the thickness of 25 micrometers or a CPE co-extrusion film with the thickness of 35 micrometers, and the like; in addition, in order to ensure the normal display of the patterns of the ink layer 3, the ink layer 3 adopts low-temperature resistant ink.
Referring to fig. 3, the surface printing process of the food packaging anti-fog film comprises the following steps:
s1, forming the printing base film 1 by using co-extrusion and drawing processes;
s2, printing the ink layer 3;
s2-1, coating a protective coating on one side of the printing surface of the base film 1; specifically, a proper amount of antifogging agent is added into the protective coating;
s2-2, performing cold treatment on the printing base film 1 coated with the protective coating to solidify the protective coating and form a protective layer 2;
s2-3, printing the ink layer 3 on the side of the protective layer 2, which is far away from the base printing film 1;
s2-4, carrying out cold treatment on the printing base film 1 printed with the ink layer 3;
s3, coating the protective coating on the side of the protective layer 2 printed with the ink layer 3 and covering the ink layer 3 by using a coating machine, and then carrying out cold treatment on the printing base film 1;
s4, rolling the film, and standing for a certain time at room temperature; the standing time is usually 48 hours;
and S5, performing an antifogging test.
Example 2:
the embodiment of the present application differs from embodiment 1 in that: s3, overprinting the protective coating on the area of the drawing ink layer 3 using a printer.
The protective coating is overprinted in the area of the drawing ink layer 3 by using a printer, so that the protective coating is saved, and the manufacturing cost of the food packaging antifogging film is reduced; simultaneously, help reducing this food package antifog coating film finished product thickness, the result of use when promoting this food package antifog coating film packing food.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. An antifogging film for food packaging is characterized in that: including having anti-fog effect's printing base film (1), one side printing of printing base film (1) thickness direction has printing ink layer (3), have protection coating (4) and cover printing ink layer (3) that separation ink moved with printing ink layer (3) homonymy coating on printing base film (1).
2. The antifogging film for food packaging of claim 1, wherein: the protective coating (4) is uniformly coated on the surface of the printing base film (1).
3. The antifogging film for food packaging of claim 1, wherein: the protective coating (4) is overprinted on the ink layer (3).
4. A surface printing process of an antifogging film for food packaging is characterized in that: the method comprises the following steps:
s1, forming a printing base film (1);
s2, printing an ink layer (3) on one side of the thickness direction of the base printing film (1);
s3, coating protective paint on one side of the printing surface of the base printing film (1) and covering an ink layer (3);
s4, rolling the film, and standing for a certain time at room temperature;
and S5, performing an antifogging test.
5. The surface printing process of the antifogging film for food packaging according to claim 4, characterized in that: the process also comprises the following steps:
s2-1, coating a protective coating on one side of the printing surface of the base printing film (1);
s2-2, performing cold treatment on the printing base film (1) to solidify the protective coating and form a protective layer (2);
s2-3, printing the ink layer (3) on the side of the protective layer (2) which is far away from the base printing film (1).
6. The surface printing process of the antifogging film for food packaging according to claim 5, characterized in that: in S3, a protective coating is applied over the side of the protective layer (2) on which the ink layer (3) is printed, using a coater, to form a protective coating (4) and cover the ink layer (3).
7. The surface printing process of the antifogging film for food packaging according to claim 5, characterized in that: in S3, a protective coating is overprinted on the region of the drawing ink layer (3) using a printer to form a protective coating (4).
8. The surface printing process of the antifogging film for food packaging according to claim 5, characterized in that: after the printing ink layer (3) is printed and the protective coating (4) is brushed, the base printing film (1) is subjected to cold treatment.
9. The surface printing process of the antifogging film for food packaging according to claim 4, characterized in that: the process also comprises the following steps: in S3, the protective coating contains a proper amount of antifogging agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111235175.7A CN114229230A (en) | 2021-10-22 | 2021-10-22 | Food packaging anti-fog film and surface printing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111235175.7A CN114229230A (en) | 2021-10-22 | 2021-10-22 | Food packaging anti-fog film and surface printing process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114229230A true CN114229230A (en) | 2022-03-25 |
Family
ID=80743182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111235175.7A Pending CN114229230A (en) | 2021-10-22 | 2021-10-22 | Food packaging anti-fog film and surface printing process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114229230A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2270624Y (en) * | 1996-08-26 | 1997-12-17 | 杭州轻工塑料厂 | Composite film for packing liquid |
| CN103568542A (en) * | 2013-10-18 | 2014-02-12 | 安徽华印机电股份有限公司 | Blowing mechanism of printing press |
| CN206407360U (en) * | 2016-12-19 | 2017-08-15 | 上海恒信包装有限公司 | A kind of composite package film for preventing that printing-ink changes colour after aluminizing |
| CN107804047A (en) * | 2017-09-19 | 2018-03-16 | 江阴申隆包装材料有限公司 | One kind easily cuts the antifog epiphragma of high-barrier and its manufacture method |
| CN108263062A (en) * | 2018-03-15 | 2018-07-10 | 南通环球塑料工程有限公司 | A kind of multilayer shrinks antifog epiphragma and preparation method thereof |
| CN111301019A (en) * | 2018-12-11 | 2020-06-19 | 广东欧克水墨有限公司 | Environment-friendly ink-water color printing packaging film and manufacturing method thereof |
| CN112321876A (en) * | 2020-11-03 | 2021-02-05 | 海南赛诺实业有限公司 | PVOH (polyvinyl alcohol) coating film for protecting printing surface and preparation method thereof |
| CN112373159A (en) * | 2020-11-03 | 2021-02-19 | 海南赛诺实业有限公司 | High-peel-strength PVOH (polyvinyl alcohol) composite film for protecting printing surface and preparation method thereof |
-
2021
- 2021-10-22 CN CN202111235175.7A patent/CN114229230A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2270624Y (en) * | 1996-08-26 | 1997-12-17 | 杭州轻工塑料厂 | Composite film for packing liquid |
| CN103568542A (en) * | 2013-10-18 | 2014-02-12 | 安徽华印机电股份有限公司 | Blowing mechanism of printing press |
| CN206407360U (en) * | 2016-12-19 | 2017-08-15 | 上海恒信包装有限公司 | A kind of composite package film for preventing that printing-ink changes colour after aluminizing |
| CN107804047A (en) * | 2017-09-19 | 2018-03-16 | 江阴申隆包装材料有限公司 | One kind easily cuts the antifog epiphragma of high-barrier and its manufacture method |
| CN108263062A (en) * | 2018-03-15 | 2018-07-10 | 南通环球塑料工程有限公司 | A kind of multilayer shrinks antifog epiphragma and preparation method thereof |
| CN111301019A (en) * | 2018-12-11 | 2020-06-19 | 广东欧克水墨有限公司 | Environment-friendly ink-water color printing packaging film and manufacturing method thereof |
| CN112321876A (en) * | 2020-11-03 | 2021-02-05 | 海南赛诺实业有限公司 | PVOH (polyvinyl alcohol) coating film for protecting printing surface and preparation method thereof |
| CN112373159A (en) * | 2020-11-03 | 2021-02-19 | 海南赛诺实业有限公司 | High-peel-strength PVOH (polyvinyl alcohol) composite film for protecting printing surface and preparation method thereof |
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