CN110104327B - Mirror silver packaging box and processing technology thereof - Google Patents
Mirror silver packaging box and processing technology thereof Download PDFInfo
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- CN110104327B CN110104327B CN201910372691.0A CN201910372691A CN110104327B CN 110104327 B CN110104327 B CN 110104327B CN 201910372691 A CN201910372691 A CN 201910372691A CN 110104327 B CN110104327 B CN 110104327B
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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
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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
- B41M1/12—Stencil printing; Silk-screen printing
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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
- B41M7/0027—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
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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
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- 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
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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
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
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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
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
- C09D11/103—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds of aldehydes, e.g. phenol-formaldehyde resins
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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
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
- C09D11/104—Polyesters
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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
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/14—Printing inks based on carbohydrates
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- General Health & Medical Sciences (AREA)
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- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Electromagnetism (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a mirror silver packaging box and a processing technology thereof. The mirror silver packaging box comprises an APET film, and an ink layer, a UV gloss oil layer, a mirror silver ink layer and an anti-scratch layer which are sequentially arranged on the back of the APET film; the mirror silver ink comprises the following components in parts by weight: 25-35 parts of mirror-surface silver paste, 30-40 parts of acrylic modified polyester resin, 20-30 parts of aldehyde ketone resin, 5-10 parts of modified cellulose ether, 1-3 parts of silane coupling agent, 5-10 parts of diluent, 1-3 parts of curing agent and 0.5-3 parts of auxiliary additive; the processing technology comprises the following steps: s1, preprocessing an APET film; s2, printing ink; s3, coating UV gloss oil; s4, brushing mirror silver ink; s5, brushing anti-scraping oil; and S6, die cutting and forming. The mirror silver packaging box has the advantages of good mirror effect and boiling resistance, strong adhesive force of the mirror silver ink layer and difficulty in falling off.
Description
Technical Field
The invention relates to the technical field of package printing, in particular to a mirror silver packaging box and a processing technology thereof.
Background
At present, the material of the product packaging box is generally paper or plastic, and various characters and patterns for displaying and explaining products are printed on the surface of the box body. In order to obtain better visual effect, the patterns on part of the paper packaging box also have a mirror silver effect, and the mirror silver effect is realized by brushing mirror silver ink on the back of the packaging box.
The mirror silver ink is prepared by using mirror silver, a small amount of resin and a special diluent as basic materials, is printed on the back surface of a transparent sheet by screen printing, has a mirror surface or gold stamping surface gloss effect when seen from the front surface, has excellent covering property, and has the same mirror surface effect as a silver evaporation sheet.
In the prior art, Chinese patent application with application number 201610141148.6 discloses mirror silver ink, which consists of the following components in parts by mass, 30-35 parts of transparent oil; 10-15 parts of silver-aluminum oil; 8-11 parts of mirror gloss oil; 0.2-0.4 part of original blue ink; 30-40 parts of silver paste; 9-11 parts of a curing agent.
The existing mirror silver ink has the advantages that after a printing stock is printed, the surface has better brightness and metal stereoscopic impression, the stereoscopic effect is strong, the appearance grade of a product is improved, but the water boiling resistance is poor, the adhesive force of the mirror silver ink is not strong, and the mirror silver ink is easy to fall off.
Disclosure of Invention
Aiming at the defects in the prior art, the first purpose of the invention is to provide a mirror silver packaging box which has the advantages of good mirror effect and boiling resistance, strong adhesive force of a mirror silver ink layer and difficulty in falling off.
The second purpose of the invention is to provide a processing technology of the mirror surface mirror packaging box, which has the advantages of simple and convenient operation and capability of preparing the packaging box with the mirror surface effect.
In order to achieve the first object, the invention provides the following technical scheme: a mirror silver packaging box comprises an APET film, an ink layer, a UV gloss oil layer, a mirror silver ink layer and a scratch-resistant layer, wherein the ink layer, the UV gloss oil layer, the mirror silver ink layer and the scratch-resistant layer are sequentially arranged on the back surface of the APET film;
the mirror silver ink comprises the following components in parts by weight: 25-35 parts of mirror-surface silver paste, 30-40 parts of acrylic modified polyester resin, 20-30 parts of aldehyde ketone resin, 5-10 parts of modified cellulose ether, 1-3 parts of silane coupling agent, 5-10 parts of diluent, 1-3 parts of curing agent and 0.5-3 parts of auxiliary additive;
the anti-scraping layer is prepared by mixing white ink and gloss oil in a mass ratio of 3 (1-2).
By adopting the technical scheme, the acrylic acid modified polyester resin and the aldehyde ketone resin are adopted, and the acrylic acid modified polyester resin and the aldehyde ketone resin have high hydroxyl content, so that aluminum sheets in the mirror surface silver paste are arranged in parallel, the aluminum sheets are oriented, the adhesion with a UV gloss oil layer is facilitated, meanwhile, the acrylic acid modified polyester resin and the aldehyde ketone resin have large molecular weights, the mass of the acrylic acid modified polyester resin and the aldehyde ketone resin can be utilized, the purpose of limiting the movement of solids in the printing ink is achieved, the positioning effect is achieved, the metal solids in the mirror surface silver paste are prevented from settling, the mirror surface effect is uniform, and the glossiness of the mirror surface silver ink layer is improved; when in use, the matching between the resins and the components is optimized, so that the solvent content and the proportion of the printing ink are more optimized; the fluidity, the stability and the adhesive force of the printing ink are improved by adding the modified cellulose ether, the problem that the dispersion capability of the cellulose ether is poor and the mirror surface silver printing ink layer is easy to be uneven in the prior art is solved by the modified cellulose ether, the tackifying effect of the cellulose ether is excellent, the adhesive force of the mirror surface silver printing ink can be obviously enhanced, the boiling resistance of the mirror surface silver printing ink is improved, and the mirror surface silver printing ink is not easy to fall off; use white printing ink and gloss oil cooperation to make and prevent scraping the layer, because gloss oil surface is transparent, shine after the film forming, prevent scraping the layer and can not cover mirror surface silver-colored ink layer, do not influence the mirror surface effect, play the guard action to mirror surface silver-colored ink layer simultaneously, prevent that mirror surface silver-colored ink layer from wearing and tearing or falling silver, influence the mirror surface effect.
Further, the modified cellulose ether is prepared by the following method: adding 3-15 parts of sodium hydroxide solution into 1.6-5.6 parts of hydroxyethyl cellulose, stirring for 20-30min, adding 1-3 parts of 2, 3-epoxypropyltrimethylammonium chloride, heating to 70-80 ℃, reacting for 3-4h, washing, vacuum drying, adding guar gum and cellulose acetate butyrate with the mass ratio of 1:0.02-0.06:0.03-0.08 to the hydroxyethyl cellulose, heating to 40-45 ℃, stirring for 0.4-0.8h, and vacuum drying to obtain the modified cellulose ether.
By adopting the technical scheme, as 2, 3-epoxypropyl trimethyl ammonium chloride is used for quaternizing the hydroxyethyl cellulose, the hydroxyethyl cellulose has good affinity to solids in the mirror silver ink, the wettability of the mirror silver ink is improved, the mirror silver ink is uniformly dispersed, simultaneously, the added guar gum and the cellulose acetate butyrate have little accumulation and affinity, the guar gum can be fully dispersed in the mirror silver ink and the dispersibility and the adhesive force of the hydroxyethyl cellulose are improved, simultaneously, the guar gum and the 2, 3-epoxypropyl trimethyl ammonium chloride act to ensure that the guar gum and metal particles in the mirror silver ink interact with each other and the adhesive property of the mirror silver ink is improved, the cellulose acetate butyrate can improve the surface defects of the mirror silver ink, resist solvent corrosion, promote the directional arrangement of aluminum powder in the mirror silver ink and improve the weather resistance, reducing shrinkage cavity, shortening drying time, increasing viscosity and improving adhesive force of the mirror silver ink.
Further, the auxiliary agent comprises the following components in parts by weight: 0.1-0.3 part of defoaming agent, 0.2-0.6 part of drier, 0.6-1.4 parts of antioxidant and 0.3-0.8 part of dispersant.
By adopting the technical scheme, the auxiliary additive is reasonably prepared, so that the mirror silver ink is compact in structure after being coated, has no bubbles and micropores, is high in oxidation, polymerization and drying speed, achieves the purpose of quick drying, and simultaneously improves weather resistance.
Further, the mirror silver ink is prepared by the following method: (1) stirring acrylic acid modified polyester resin, aldehyde ketone resin and modified cellulose ether at the stirring speed of 700-;
(2) stirring mirror silver paste, a drier, a silane coupling agent, a diluent, a dispersant and an antioxidant at a stirring speed of 600-800r/min for 10-20min to prepare a mixed component;
(3) adding the mixed components into the resin intermediate, uniformly mixing and stirring, grinding until the granularity of solid particles is less than 1 mu m, then adding a curing agent and an antifoaming agent, and stirring at the stirring speed of 800-1000r/min for 30-40min to obtain the mirror-surface silver ink.
By adopting the technical scheme, the acrylic acid modified polyester resin, the aldehyde ketone resin and the modified cellulose ether are firstly mixed with each other, so that the acrylic acid modified polyester resin, the aldehyde ketone resin and the modified cellulose ether can be uniformly mixed, the cellulose ether is prevented from agglomerating, then the dispersing agent, the antioxidant and the like are added, the oxidation resistance of the mirror surface silver ink can be greatly improved, the phenomenon of coarse blackening in the printing process is prevented, the dispersion uniformity of all materials is improved, the use instruction is prolonged, and finally the curing agent and the defoaming agent are added, so that the mirror surface silver ink is fine in texture, uniform after film forming and good in compactness.
Further, the diluent is one or a combination of more of acetone, absolute ethyl alcohol, n-butanol and butyl acetate.
Further, the drier is one or a combination of more of cobalt naphthenate, manganese linseed oleate and cobalt octoate.
Further, the antioxidant is one or a combination of more of hydroquinone, 2, 6-di-tert-butyl-p-methylphenol, butylated hydroxytoluene and tert-butyl hydroquinone.
Furthermore, the thickness ratio of the APET film, the ink layer, the UV gloss oil layer, the mirror silver ink layer and the scratch-resistant layer is 1 (0.01-0.02): (0.04-0.06): 0.03-0.07): 0.1-0.3.
Through adopting above-mentioned technical scheme, make and prevent scraping the layer thickness than printing ink layer, UV gloss oil layer and mirror surface silver-colored printing ink layer thickness, because the skid resistant course is located the outside at the APET film back, can prevent that the APET film when packing article, inside fish tail or wearing and tearing lead to mirror surface silver-colored printing ink layer to expose outside for the phenomenon that silver-colored or fade appears in mirror surface silver-colored printing ink layer.
In order to achieve the second object, the invention provides the following technical scheme: a processing technology of a mirror surface silver packaging box comprises the following steps:
s1, APET film preprocessing: tearing off the protective film on the back of the APET film;
s2, printing ink: printing a layer of colored pattern on the back surface of the APET film, and drying at 40-60 ℃ to form an ink layer;
s3, coating UV gloss oil: coating a layer of UV gloss oil on the ink layer, drying under a UV lamp at the drying temperature of 50-55 ℃, the photocuring speed of 5-10m/min and the power of the UV lamp of 90W/cm, and drying to form the UV gloss oil layer;
s4, coating mirror silver ink: silk screen printing with a screen of 250-mesh and 300-mesh is carried out, mirror surface silver ink is silk-screened on the UV gloss oil layer at the temperature of 20-25 ℃ and the ambient temperature with the relative humidity of 60-65%, and the mirror surface silver ink layer is formed after natural drying for 10-12 h;
s5, brushing anti-scraping oil: coating a layer of scratch-resistant oil on the mirror silver ink layer in a rolling way, and drying for 8-10h in a natural state to form a scratch-resistant layer;
s6, die cutting and forming: and cutting the APET film into a required shape, and sticking to prepare the packaging box.
By adopting the technical scheme, the APET film is coated with the color ink, the UV gloss oil, the mirror silver ink and the scratch-resistant oil layer by layer, and the preparation method is simple and easy to operate.
Further, in the step S4, a doctor blade with a hardness of HS65-85 degrees is selected.
In conclusion, the invention has the following beneficial effects:
firstly, because the acrylic acid modified polyester resin and the aldehyde ketone resin with high hydroxyl content and high molecular weight are adopted as the liquid resin matrix of the mirror silver ink, the acrylic acid modified polyester resin and the aldehyde ketone resin with high hydroxyl content can be mutually bonded with a metal aluminum sheet in the mirror silver paste, so that the parallel arrangement and alignment of the aluminum sheet are improved, the aluminum sheet is positioned, the adhesive force of the mirror silver ink and a substrate is improved, solid particles in the mirror silver ink are uniformly dispersed, and the mirror effect is uniform.
Secondly, the modified cellulose ether is adopted to improve the viscosity of the acrylic acid modified polyester resin and the aldehyde ketone resin, so that the aluminum sheet in the mirror silver paste can be better fixed, meanwhile, the hydroxyethyl cellulose is used for preparing the modified cellulose ether, each cellulose ring of the hydroxyethyl cellulose contains three hydroxyl groups, a large number of hydroxyl functional groups which are beneficial to aluminum powder parallel arrangement are introduced, the glossiness of the mirror silver ink can be improved, the adhesive force and the boiling resistance of the mirror silver ink can be improved, and therefore the mirror silver is prevented from falling off.
Thirdly, guar gum and cellulose acetate butyrate are used for modifying hydroxyethyl cellulose, firstly, 2, 3-epoxy trimethyl ammonium chloride performs quaternization on the hydroxyethyl cellulose, the dispersing power of the mirror silver ink is improved, the guar gum can interact with the 2, 3-epoxy trimethyl ammonium chloride, so that the guar gum interacts with metal particles in the mirror silver ink, the adhesive force of the mirror silver ink is improved, and the cellulose acetate butyrate can improve the solvent corrosion resistance and weather resistance of the mirror silver ink, shorten the drying time, improve the viscosity and improve the adhesive force.
Detailed Description
The present invention will be described in further detail with reference to examples.
Preparation examples 1 to 3 of modified cellulose ethers
The guar gum of preparation examples 1 to 3 was selected from guar gum of type C-14S sold by Guangzhou Rizhi oil science and technology Co., Ltd, the cellulose acetate butyrate was selected from cellulose acetate butyrate of type CAB381-20 sold by Wuxi Korea chemical products Co., Ltd, and the hydroxyethyl cellulose was selected from hydroxyethyl cellulose of type DS-HT06 sold by centurie Macro science and technology Co., Ltd.
Preparation example 1: adding 3kg of a sodium hydroxide solution with the mass fraction of 40% into 1.6kg of hydroxyethyl cellulose, stirring for 20min, adding 1kg of 2, 3-epoxypropyltrimethylammonium chloride, heating to 70 ℃, reacting for 3h, washing, drying in vacuum at the drying temperature of 80 ℃, drying for 1h, adding guar gum and cellulose acetate butyrate with the mass ratio of 1:0.02:0.03 to the hydroxyethyl cellulose, heating to 40 ℃, stirring for 0.4h, drying in vacuum at the drying temperature of 40 ℃, and drying for 2h to obtain the modified cellulose ether.
Preparation example 2: adding 9kg of 43% sodium hydroxide solution into 3.6kg of hydroxyethyl cellulose, stirring for 25min, adding 2kg of 2, 3-epoxypropyltrimethylammonium chloride, heating to 75 ℃, reacting for 3.5h, washing, drying in vacuum at the drying temperature of 85 ℃, drying for 2h, adding guar gum and cellulose acetate butyrate with the mass ratio of 1:0.04:0.05 to the hydroxyethyl cellulose, heating to 43 ℃, stirring for 0.6h, drying in vacuum at the drying temperature of 45 ℃, and drying for 3h to obtain the modified cellulose ether.
Preparation example 3: adding 15kg of 45 mass percent sodium hydroxide solution into 5.6kg of hydroxyethyl cellulose, stirring for 30min, adding 3kg of 2, 3-epoxypropyltrimethylammonium chloride, heating to 80 ℃, reacting for 4h, washing, drying in vacuum at the drying temperature of 90 ℃, drying for 3h, adding guar gum and cellulose acetate butyrate with the mass ratio of 1:0.06:0.08 to the hydroxyethyl cellulose, heating to 45 ℃, stirring for 0.8h, drying in vacuum at the drying temperature of 50 ℃, and drying for 4h to obtain the modified cellulose ether.
Examples
Examples 1-3 wherein the UV gloss oil is selected from UV gloss oil sold by Baoding Roodda UV technology development Co., Ltd. under model number UV0RD808-60, the white ink is selected from white ink sold by Fenggang American printing facility Proc., Toguan, with model number GL070, the gloss oil is selected from gloss oil sold by Runsheng practical Co., Ltd. under model number YC3316, the aqueous silicone defoamer is selected from aqueous silicone defoamer sold by Nanjing radium general chemical Co., Ltd. under model number B108, the blocked isocyanate curing agent is selected from blocked isocyanate curing agent sold by Dongguan Jiang practical Co., Ltd. under model number JX-628, the acrylic modified polyester resin is selected from acrylic modified polyester resin sold by Liangshan Tianjia chemical Co., Ltd. under model number TJ151-75, the aldehyde ketone resin is selected from aldehyde ketone resin sold by Guangzhou Union Tree trade Co., Ltd. under model number A81, the silane coupling agent is selected from silane coupling agent sold by Jie chemical technology limited in Guangzhou city with model number KH-550, and the mirror silver paste is selected from mirror silver paste sold by Guangzhou crystal color chemical technology limited with model number ZD-7007.
Example 1: the mirror silver packaging box comprises an APET film, an ink layer, a UV gloss oil layer, a mirror silver ink layer and a scratch-resistant layer which are sequentially arranged on the back surface of the APET film, wherein the thickness ratio of the APET film, the ink layer, the UV gloss oil layer, the mirror silver ink layer and the scratch-resistant layer is 1:0.01:0.04:0.03: 0.1.
The processing technology of the mirror silver packaging box comprises the following steps:
s1, APET film preprocessing: tearing off the protective film on the back of the APET film;
s2, printing ink: printing a layer of colored pattern on the back surface of the APET film, and drying at 40 ℃ to form an ink layer;
s3, coating UV gloss oil: coating a layer of UV gloss oil on the ink layer, drying under a UV lamp at the drying temperature of 50 ℃, the photocuring speed of 5m/min and the power of the UV lamp of 90W/cm, and drying to form a UV gloss oil layer;
s4, coating mirror silver ink: silk-screen printing mirror surface silver ink on the UV gloss oil layer by using a screen printing plate which is a 250-mesh silk screen and a doctor blade with the hardness of HS65 ℃ at the temperature of 20 ℃ and the relative humidity of 60%, and naturally drying for 10h to form a mirror surface silver ink layer;
the mirror silver ink is prepared from the raw materials in the table 1, the auxiliary additives in the table 1 comprise 0.1kg of defoaming agent, 0.2kg of drier, 0.6kg of antioxidant and 0.3kg of dispersing agent, the modified cellulose ether is prepared from the preparation example 1, and the preparation method of the mirror silver ink is as follows:
(1) stirring 30kg of acrylic acid modified polyester resin, 20kg of aldehyde ketone resin and 5kg of modified cellulose ether at a stirring speed of 700r/min for 40min to obtain a resin intermediate;
(2) stirring 25kg of mirror silver paste, 0.1kg of drier, 1kg of silane coupling agent, 5kg of diluent, 0.3kg of dispersing agent and 0.6kg of antioxidant for 10min at a stirring speed of 600r/min to prepare a mixed component, wherein the diluent is acetone, the drier is cobalt naphthenate, the dispersing agent is polyethylene glycol, and the antioxidant is hydroquinone;
(3) adding the mixed components into a resin intermediate, uniformly mixing and stirring, grinding until the granularity of solid particles is less than 1 mu m, then adding 1kg of curing agent and 0.1kg of defoaming agent, and stirring at the stirring speed of 800r/min for 30min to prepare the mirror-surface silver ink, wherein the curing agent is a closed isocyanate curing agent, and the defoaming agent is polyoxyethylene polyoxypropylene pentaerythritol ether;
s5, brushing anti-scraping oil: coating a layer of scratch-resistant oil on the mirror silver ink layer in a rolling mode, drying for 8 hours in a natural state to form a scratch-resistant layer, wherein the scratch-resistant oil is prepared by mixing white ink and gloss oil in a mass ratio of 3: 1;
s6, die cutting and forming: and cutting the APET film into a required shape, and sticking to prepare the packaging box.
TABLE 1 proportioning of the raw materials for the mirror silver inks of examples 1-3
Example 2: the mirror silver packaging box comprises an APET film, an ink layer, a UV gloss oil layer, a mirror silver ink layer and a scratch-resistant layer which are sequentially arranged on the back surface of the APET film, wherein the thickness ratio of the APET film, the ink layer, the UV gloss oil layer, the mirror silver ink layer and the scratch-resistant layer is 1:0.02:0.05:0.05: 0.2.
The processing technology of the mirror silver packaging box comprises the following steps:
s1, APET film preprocessing: tearing off the protective film on the back of the APET film;
s2, printing ink: printing a layer of colored pattern on the back surface of the APET film, and drying at 50 ℃ to form an ink layer;
s3, coating UV gloss oil: coating a layer of UV gloss oil on the ink layer, drying under a UV lamp at the drying temperature of 53 ℃, the photocuring speed of 8m/min and the power of 90W/cm, and drying to form a UV gloss oil layer;
s4, coating mirror silver ink: screen printing mirror surface silver ink on the UV gloss oil layer by using a screen printing plate as a 270-mesh screen and a doctor blade with the hardness of HS70 ℃ at the temperature of 23 ℃ and the relative humidity of 63%, and naturally drying for 11h to form a mirror surface silver ink layer;
the mirror silver ink is prepared from the raw materials in the table 1, the auxiliary additives in the table 1 comprise 0.2kg of defoaming agent, 0.4kg of drier, 1kg of antioxidant and 0.5kg of dispersing agent, the modified cellulose ether is prepared from the preparation example 2, and the preparation method of the mirror silver ink is as follows:
(1) stirring 35kg of acrylic acid modified polyester resin, 25kg of aldehyde ketone resin and 8kg of modified cellulose ether at a stirring speed of 750r/min for 45min to obtain a resin intermediate;
(2) stirring 30kg of mirror silver paste, 0.4kg of drier, 2kg of silane coupling agent, 8kg of diluent, 0.5kg of dispersing agent and 1kg of antioxidant for 15min at a stirring speed of 700r/min to prepare a mixed component, wherein the diluent is n-butyl alcohol, the drier is manganese naphthenate, the dispersing agent is calcium stearate, and the antioxidant is 2, 6-di-tert-butyl-p-methylphenol;
(3) adding the mixed components into a resin intermediate, uniformly mixing and stirring, grinding until the granularity of solid particles is less than 1 mu m, then adding 2kg of curing agent and 0.2kg of defoaming agent, and stirring at the stirring speed of 900r/min for 35min to prepare the mirror-surface silver ink, wherein the curing agent is a closed isocyanate curing agent, and the defoaming agent is a water-based organic silicon defoaming agent;
s5, brushing anti-scraping oil: coating a layer of scratch-resistant oil on the mirror silver ink layer in a rolling mode, drying for 8 hours in a natural state to form a scratch-resistant layer, wherein the scratch-resistant oil is prepared by mixing white ink and gloss oil in a mass ratio of 3: 1.5;
s6, die cutting and forming: and cutting the APET film into a required shape, and sticking to prepare the packaging box.
Example 3: the mirror silver packaging box comprises an APET film, and an ink layer, a UV gloss oil layer, a mirror silver ink layer and a scratch-resistant layer which are sequentially arranged on the back surface of the APET film, wherein the thickness ratio of the APET film, the ink layer, the UV gloss oil layer, the mirror silver ink layer and the scratch-resistant layer is 1:0.02:0.06:0.07: 0.3.
The processing technology of the mirror silver packaging box comprises the following steps:
s1, APET film preprocessing: tearing off the protective film on the back of the APET film;
s2, printing ink: printing a layer of colored pattern on the back surface of the APET film, and drying at 60 ℃ to form an ink layer;
s3, coating UV gloss oil: coating a layer of UV gloss oil on the ink layer, drying under a UV lamp at the drying temperature of 55 ℃, the photocuring speed of 10m/min and the power of 90W/cm, and drying to form a UV gloss oil layer;
s4, coating mirror silver ink: silk-screen printing mirror surface silver ink on the UV gloss oil layer by using a screen printing plate which is a 300-mesh silk screen and a doctor blade with the hardness of HS85 ℃ at the ambient temperature of 25 ℃ and the relative humidity of 65%, and naturally drying for 12h to form a mirror surface silver ink layer;
the mirror silver ink is prepared from the raw materials in the table 1, the auxiliary additives in the table 1 comprise 0.3kg of defoaming agent, 0.6kg of drier, 1.4kg of antioxidant and 0.8kg of dispersing agent, the modified cellulose ether is prepared from the preparation example 3, and the preparation method of the mirror silver ink is as follows:
(1) stirring 40kg of acrylic acid modified polyester resin, 30kg of aldehyde ketone resin and 10kg of modified cellulose ether at a stirring speed of 800r/min for 50min to obtain a resin intermediate;
(2) stirring 35kg of mirror silver paste, 0.6kg of drier, 3kg of silane coupling agent, 10kg of diluent, 0.8kg of dispersing agent and 1.4kg of antioxidant for 20min at a stirring speed of 800r/min to prepare a mixed component, wherein the diluent is absolute ethyl alcohol and butyl acetate with the mass ratio of 1:1, the drier is manganese linoleate and cobalt octoate with the mass ratio of 1:1, the dispersing agent is polyethylene glycol, and the antioxidant is dibutyl hydroxy toluene and tert-butyl hydroquinone with the mass ratio of 1: 2;
(3) adding the mixed components into a resin intermediate, uniformly mixing and stirring, grinding until the granularity of solid particles is less than 1 mu m, then adding 3kg of curing agent and 0.3kg of defoaming agent, and stirring at a stirring speed of 1000r/min for 40min to prepare the mirror-surface silver ink, wherein the curing agent is a closed isocyanate curing agent, and the defoaming agent is polyoxyethylene polyoxypropylene pentaerythritol ether;
s5, brushing anti-scraping oil: coating a layer of scratch-resistant oil on the mirror silver ink layer in a rolling mode, drying for 8 hours in a natural state to form a scratch-resistant layer, wherein the scratch-resistant oil is prepared by mixing white ink and gloss oil in a mass ratio of 3: 2;
s6, die cutting and forming: and cutting the APET film into a required shape, and sticking to prepare the packaging box.
Comparative example
Comparative example 1: a mirror silver packaging box, which is different from the mirror silver packaging box in example 1 in that modified cellulose ether is not added in mirror silver ink.
Comparative example 2: a mirror silver packaging box is different from the mirror silver packaging box in example 1 in that cellulose acetate butyrate is not added into modified cellulose ether in mirror silver ink.
Comparative example 3: the mirror silver packaging box is different from the mirror silver ink prepared in the embodiment 1 in the Chinese invention patent application with the application number of 201810743108.8, and the mirror silver ink comprises the following raw materials in parts by weight: 5 parts of non-floating aluminum paste, 798615 parts of Barton BI, 6598 parts of cyanite, 517510 parts of co-curing chemical Banco, 70 parts of waterborne acrylic modified polyester resin, 0.5 part of waterborne silicone defoamer, 29261 parts of Yingchuang, 84211 parts of BYK AQUATIX and 10 parts of water.
Performance test
Firstly, detecting the performance of mirror silver ink: mirror-surface silver inks were prepared in the same manner as in examples 1 to 3 and comparative examples 1 to 3, and the prepared mirror-surface silver inks were printed on a common glass plate using a 300-mesh screen printing plate to a printing thickness of 20 μm, baked at 186 ℃ for 10 minutes to be cured and formed, and the properties of the mirror-surface silver inks were measured in the following manner, and the results are shown in table 2.
1. Adhesion force: testing is carried out according to GB/T9268-1998 test for marking out paint films of paints and varnishes;
2. hardness: testing is carried out according to GB/T6739-1996 'determination of paint film hardness by a colored paint and varnish pencil method';
3. acid and alkali resistance: according to GB/T9247-1988 test for liquid-resistant media for paints and varnishes;
4. water resistance: testing according to GB/T1733-1993 'paint film water resistance test';
TABLE 2 Performance test of the mirror silver inks prepared in the examples and comparative examples
Secondly, detecting the performance of the packaging box by applying mirror silver ink: mirror silver packaging boxes were prepared according to the preparation methods in examples 1 to 3 and comparative examples 1 to 3, the packaging boxes were subjected to boiling and cleaning in a boiling test machine and an ultrasonic cleaning machine, respectively, and the boiling resistance and ultrasonic cleaning performance of the mirror silver packaging boxes were examined, adhesion was examined according to GB/T9268-1998 "test for drawing test of colored paint and varnish paint films", boiling resistance was examined according to GB/T1733-1993 "test for Water resistance of paint films", and the examination results are reported in Table 3.
Table 3 test results of the packing boxes manufactured in each example and each comparative example
As can be seen from the data in tables 2 and 3, the mirror-like silver inks prepared by the methods of examples 1 to 3 had good adhesion, water resistance, acid and alkali resistance, high hardness, and good performance, and when applied to a packaging box, the mirror-like silver inks had good mirror-like effect, strong adhesion, good boiling resistance, and good ultrasonic cleaning performance.
In the comparative example 1, the adhesive force of the mirror silver ink is reduced by 3 grades and the hardness, water resistance and other properties are poor as compared with those of the mirror silver ink prepared in the examples 1-3 because the modified cellulose ether is not added in the mirror silver ink, and the packing box using the mirror silver ink prepared in the comparative example 1 has poor boiling resistance and ultrasonic cleaning performance, which shows that the modified cellulose ether can improve the adhesive force, boiling resistance and other properties of the mirror silver ink.
Comparative example 2 since cellulose acetate butyrate was not added to the modified cellulose ether in the mirror silver ink, the mirror silver ink prepared in comparative example 2 was inferior in adhesion, acid and alkali resistance, hardness, and water resistance to examples 1-3, and the boiling resistance and ultrasonic cleaning performance of the packaging box using the mirror silver ink prepared in comparative example 2 were inferior, indicating that the modified cellulose ether prepared by modifying hydroxyethyl cellulose with cellulose acetate butyrate was able to improve the adhesion, acid and alkali resistance, and hardness of the mirror silver ink, and the boiling resistance of the packaging box was better when the mirror silver ink was coated to make the packaging box.
Comparative example 3 is a mirror silver ink prepared in the prior art, and compared with the mirror silver ink prepared in examples 1-3 of the present invention, the performance is reduced, and silver loss and fading occur after water boiling and ultrasonic cleaning, which shows that the packaging box prepared in the present invention has better water boiling resistance and ultrasonic cleaning performance.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (9)
1. The mirror silver packaging box is characterized by comprising an APET film, an ink layer, a UV gloss oil layer, a mirror silver ink layer and a scratch-resistant layer, wherein the ink layer, the UV gloss oil layer, the mirror silver ink layer and the scratch-resistant layer are sequentially arranged on the back surface of the APET film; the mirror silver ink comprises the following components in parts by weight: 25-35 parts of mirror-surface silver paste, 30-40 parts of acrylic modified polyester resin, 20-30 parts of aldehyde ketone resin, 5-10 parts of modified cellulose ether, 1-3 parts of silane coupling agent, 5-10 parts of diluent, 1-3 parts of curing agent and 0.5-3 parts of auxiliary additive;
the anti-scraping layer is prepared by mixing white ink and gloss oil in a mass ratio of 3 (1-2);
the modified cellulose ether is prepared by the following method: adding 3-15 parts of sodium hydroxide solution into 1.6-5.6 parts of hydroxyethyl cellulose, stirring for 20-30min, adding 1-3 parts of epoxypropyltrimethylammonium chloride, heating to 70-80 ℃, reacting for 3-4h, washing, vacuum drying, adding guar gum and cellulose acetate butyrate with the mass ratio of 1 (0.02-0.06) to (0.03-0.08) to the hydroxyethyl cellulose, heating to 40-45 ℃, stirring for 0.4-0.8h, and vacuum drying to obtain the modified cellulose ether.
2. The mirror silver packaging box according to claim 1, wherein the auxiliary additive comprises the following components in parts by weight: 0.1-0.3 part of defoaming agent, 0.2-0.6 part of drier, 0.6-1.4 parts of antioxidant and 0.3-0.8 part of dispersant.
3. The specular silver package according to claim 2, wherein the specular silver ink is produced by a method comprising: (1) stirring acrylic acid modified polyester resin, aldehyde ketone resin and modified cellulose ether at the stirring speed of 700-; (2) stirring the mirror silver paste, the drier, the silane coupling agent, the diluent, the dispersant and the antioxidant for 10-20min at the stirring speed of 600-800r/min to prepare a mixed component; and (3) adding the mixed components into the resin intermediate, uniformly mixing and stirring, grinding until the granularity of solid particles is less than 1 mu m, then adding a curing agent and an antifoaming agent, and stirring at a stirring speed of 800-.
4. The mirror silver packaging box according to claim 1, wherein the diluent is one or a combination of acetone, absolute ethyl alcohol, n-butanol and butyl acetate.
5. The mirror silver packaging box according to claim 2, wherein the drier is one or more of cobalt naphthenate, manganese linoleate, and cobalt octoate.
6. The mirror silver packaging box according to claim 2, wherein the antioxidant is one or a combination of hydroquinone, 2, 6-di-tert-butyl-p-methylphenol, butylated hydroxytoluene and tert-butylhydroquinone.
7. The mirror silver packaging box according to claim 1, wherein the thickness ratio of the APET film, the ink layer, the UV gloss oil layer, the mirror silver ink layer and the scratch-resistant layer is 1 (0.01-0.02): 0.04-0.06): 0.03-0.07: 0.1-0.3.
8. The process for manufacturing the mirror-like silver packing box according to any one of claims 1 to 7, comprising the steps of: s1, APET film preprocessing: tearing off the protective film on the back of the APET film; s2, printing ink: printing a layer of colored pattern on the back surface of the APET film, and drying at 40-60 ℃ to form an ink layer; s3: coating UV gloss oil: coating a layer of UV gloss oil on the ink layer, drying under a UV lamp at the drying temperature of 50-55 ℃, the photocuring speed of 5-10m/min and the power of the UV lamp of 90W/cm, and drying to form the UV gloss oil layer; s4, coating mirror silver ink: silk screen printing with a screen of 250-mesh and 300-mesh is carried out, mirror surface silver ink is silk-screened on the UV gloss oil layer at the temperature of 20-25 ℃ and the ambient temperature with the relative humidity of 60-65%, and the mirror surface silver ink layer is formed after natural drying for 10-12 h; s5, brushing anti-scraping oil: coating a layer of scratch-resistant oil on the mirror silver ink layer in a rolling way, and drying for 8-10h in a natural state to form a scratch-resistant layer; s6, die cutting and forming: and cutting the APET film into a required shape, and sticking to prepare the packaging box.
9. The process of claim 8, wherein in step S4, a doctor blade with a hardness of HS65-85 degrees is selected.
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