CN105172408A - Production method for holographic hot stamping film - Google Patents
Production method for holographic hot stamping film Download PDFInfo
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- CN105172408A CN105172408A CN201510665938.XA CN201510665938A CN105172408A CN 105172408 A CN105172408 A CN 105172408A CN 201510665938 A CN201510665938 A CN 201510665938A CN 105172408 A CN105172408 A CN 105172408A
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Abstract
The invention provides a production method for a holographic hot stamping film. An anti-counterfeiting work plate is formed for silver spraying and electroforming operations of a photoetching offset plate etched with a holographic pattern; a positron emission tomography (PET) thin film is coated with a mold releasing agent to form a mold releasing layer; the mold releasing layer is coated with a resin solution mixed with toner to form a toner layer; the holographic pattern on the anti-counterfeiting work plate is die stamped on the toner layer of the PET thin film; metal aluminum is plated on the toner layer, and a aluminum-plated layer is coated with glue to form a glue layer; and finally, the PET thin film is divided, cut and packed. According to the hot stamping film produced through the production method not only exquisite in pattern, but also high in anti-counterfeiting degree and difficult to counterfeit; a used hot stamping film can not be reused. The photoetching offset plate sprayed with silver is even in thickness and high in strength, so that the rate of finished products of photoetching offset plates is increased by a large margin, and accordingly the quality of the anti-counterfeiting work plate and the hot stamping film is improved; meanwhile, the raw material consumption can be reduced, and the production cycle for making the anti-counterfeiting work plate is shortened. The electroformed anti-counterfeiting work plate has good strength, hardness and malleability resistance; the working life is pronged by near one time.
Description
Technical field
The invention belongs to package anti-counterfeiting technical field, relate to a kind of holographic thermoprinted film production method.
Background technology
Along with the high development of modern science and technology, counterfeit and shoddy goods are also constantly changed to a new form, and penetrate into every field, all the time not in the legitimate interests of the trespasser producer, the right of infringement consumer, therefore, false proof fighting becomes social question of common concern.Along with the raising of national economy and the development of press-packaging industry, the requirement of people to the packing of product is not only top grade, fineness, environmental protection, rich personalized, and the packaging of simultaneously also wishing by product can distinguish the true and false of product.Therefore, there is anti-fraud functional rainbow holography mold pressing anti-counterfeiting mark obtain applying more and more widely in the post-press finishing of packaging product, and be subject to the favor of consumers in general due to the outward appearance of its luxurious fineness, be all widely used in the high-grade packaging such as cigarette-brand, medicine, cosmetics, wine.But its unalterable outward appearance of traditional rainbow mould pressing holographic anti-counterfeiting logo and single counterfeit protection measures, owing to imitating mutually between each producer and illegally forging and make its anti-counterfeiting power greatly weaken.
Summary of the invention
For solving prior art Problems existing, the invention provides a kind of holographic thermoprinted film production method, blocking film not only pattern fineness, good brightness, the clear picture that the method is produced, and false proof degree is high, not easily forges, used blocking film cannot be reused.
Holographic thermoprinted film production method provided by the invention, comprises the following steps:
(1) utilize litho machine to be engraved on photoetching hectograph by the hologram pattern designed, more silver-colored operation is sprayed to photoetching hectograph, more single piece of nickel version is formed to the electroforming of photoetching hectograph; Utilize plate joggling apparatus that single piece of nickel version is combined into satisfactory large version, form false proof working version to large version electroforming, the thickness of this false proof working version is 0.4-0.5mm, and the thickness deviation of false proof working version is less than 13um;
(2) coating waste water is carried out to PET film:
1) PET film is wrapped on coating machine, that is, PET film volume is arranged on the unreeling shaft of coating machine, and the end that PET film is rolled up is arranged on wind-up roll after passing between roller platen and net roller; Utilize alcohol and water dilution mould release, and the mould release diluted is poured in the coating pan of coating machine and stir, open coating machine subsequently and be coated with mould release in PET film, the PET film being coated with mould release is passed in wrapup procedure from baking oven, makes mould release solidify to form release layer in PET film; Wherein net roller adopts 250 orders, and oven for drying temperature range is 90-130 DEG C, and the rotating speed of wind-up roll is 85m/min, and mould release wet coating amount is 4.5-5.0g/m
2, mould release solid content is 0.8%, and coating thickness is about 5um;
2) coating machine is utilized to be coated with chromatograph on the release layer of PET film scribbling mould release, coating method is identical with coating mould release, wherein, pour the resin solution being mixed with toner in coating pan into, net roller adopts 220 orders, and oven for drying temperature range is 85-160 DEG C, the rotating speed of wind-up roll is 83m/min, resin solution viscosity is 15-17S, and resin solution solid content is 22%, and wet coating amount is 5.0-5.5g/m
2, the dry measure of the resin after drying on release layer is 1.0-1.2g/m
2;
(3) hologram pattern on false proof working version is molded in PET film: false proof working version is attached in the roller of high speed moulding press, roller is heated to 180-200 DEG C, with 40kg/cm
2false proof working version in roller is pressed in PET film by the pressure of left and right, makes the hologram pattern on false proof working version be imprinted on the chromatograph of PET film, and form Information Level, wherein the hardness of roller is HS97-HS99;
(4) PET film after mold pressing sent in vacuum aluminum-plating machine, aluminize on an information layer under vacuum conditions, form uniform aluminium coated, aluminum layer thickness is
aluminum-spraying machine rotating speed is 400-500m/min;
(5) coating machine glue coating on the aluminium coated of PET film is utilized, form adhesive-layer, coating method is identical with coating mould release, wherein, pour glue in coating pan, net roller adopts 140-170 order, oven for drying temperature range is 80-125 DEG C, glue viscosity is 16-18S, and wind-up roll rotating speed is 90m/min, and glue wet coating amount is 8.0-9.0g/m
2, solid content is 22%;
(6) according to specification requirement, PET film cut, pack.
Preferably, the silver-colored operation of described spray is specially, and rinses, wipe oil and impurity after first using the Escin solution of 0.5% to carry out cleaning to the surface of photoetching hectograph with water; Re-use sensitizing solution and carry out sensitized treatment, the proportioning of described sensitizing solution is: get 45g glucose and be dissolved in 100g water, get 5.6gSnCl
2, 2gSnCl
4be dissolved in the hydrochloric acid of 3ml36%, 50ml water is added again by after two mixed solution mixing, during sensitized treatment, single mouth spray gun is utilized to be sprayed toward surrounding at the center of sensitizing solution from photoetching hectograph, deionized water rinsing is used after spraying 3-5min continuously, then use 5% hydrochloric acid cleaning, use washed with de-ionized water more afterwards; Finally carry out spraying silver operation, spraying silver-colored solution ratio used is: 5g glucose, 3.5ml formaldehyde are dissolved in 100ml water, get 0.5gNaOH and be dissolved in 25ml water, add 0.5gPb (CH after being heated to 60 DEG C
3cOO)
2, then two mixed solutions are mixed to form a solution; Get 2gAnNO
3, 3.5gNH
4oH is dissolved in 25ml water, adds the NaOH solution of 5ml4% afterwards, finally adds the Cu (NO of 0.5ml0.2%
3)
2solution, forms No. two solution, adopts rush-harvesting and rush-planting nozzle a solution, No. two solution to be sprayed to surrounding from the center of photoetching hectograph simultaneously, until the hologram pattern of complete display appears in photoetching hectograph, then cleans photoetching hectograph by deionized water.Thickness is even, intensity is high for use the present invention to spray photoetching hectograph (after spray silver) that silver obtains, the yield rate of photoetching hectograph (after spray silver) can be increased substantially, and then improve the quality of false proof working version and blocking film, can also cut down the consumption of raw materials simultaneously, shorten the production cycle making false proof working version, reduce production cost, obtain good economic benefit.
Preferably, the electroforming solution component that in described step (1), electroforming uses is: nickel sulfamic acid 400g/L, boric acid 30g/L, anodic dissolution agent 6.0g/L, negative electrode leveling agent 0.5g/L, high-sulfur nickel brightener 0.8g/L, surface are except hole agent 0.1g/L; After electroforming solution preparation, use the abundant agitation and filtration of electric stirring filter at least 72 hours, then, under no-load current condition, do negative electrode with CI carry out electrolytic treatments 7-15 days continuously; Electroforming temperature 50 C, pH value 4.0, voltage 2 ~ 12V, cathode-current density 6.0A/dm2, no-load current density 0.5A/dm2, cathode efficiency 96%.The nickel layer thickness that electroforming is formed is 50-100um.The present invention is main component with nickel sulfamic acid and is equipped with the electroforming solution component of specialist additive, and be aided with specific electroforming parameter, electroforming solution chemical stability is good, there is the dispersibility higher than conventional Kraft electroforming solution, simultaneously, fast and being evenly distributed along cathode surface of deposition rate of metal, thus the false proof working version cast has good intensity, hardness and spreading resistance, its intensity, hardness, flatness and pliability all can meet the job requirement of high speed moulding press, make the service life as compared of false proof working version originally improve nearly one times.
Preferably, adopt boron nitride evaporation boat in the vacuum aluminum-plating machine in described step (4), boron nitride evaporation boat electric current is 700-800A, voltage 7-8V, and vacuum is (7-9) × 10
-2pa, aluminium wire diameter is 1.5mm, and the wire feed rate of aluminium wire is 0.8-1.2m/min.
The invention provides the blocking film not only pattern fineness that holographic thermoprinted film production method is produced, and false proof degree is high, not easily forges, used blocking film cannot be reused.Thickness is even, intensity is high for use the present invention to spray photoetching hectograph (after spray silver) that silver obtains, the yield rate of photoetching hectograph (after spray silver) can be increased substantially, and then improve the quality of false proof working version and blocking film, can also cut down the consumption of raw materials simultaneously, shorten the production cycle making false proof working version, reduce production cost, obtain good economic benefit.The present invention is main component with nickel sulfamic acid and is equipped with the electroforming solution component of specialist additive, and be aided with specific electroforming parameter, electroforming solution chemical stability is good, there is the dispersibility higher than conventional Kraft electroforming solution, simultaneously, fast and being evenly distributed along cathode surface of deposition rate of metal, thus the false proof working version cast has good intensity, hardness and spreading resistance, its intensity, hardness, flatness and pliability all can meet the job requirement of high speed moulding press, make the service life as compared of false proof working version originally improve nearly one times.
Detailed description of the invention
Holographic thermoprinted film production method provided by the invention, comprises the following steps:
(1) utilize litho machine to be engraved on photoetching hectograph by the hologram pattern designed, more silver-colored operation is sprayed to photoetching hectograph, more single piece of nickel version is formed to the electroforming of photoetching hectograph; Utilize plate joggling apparatus that single piece of nickel version is combined into satisfactory large version, form false proof working version to large version electroforming, the thickness of this false proof working version is 0.4-0.5mm, and the thickness deviation of false proof working version is less than 13um;
Spray silver-colored operation to be specially, rinse with water after first using the Escin solution of 0.5% to carry out cleaning to the surface of photoetching hectograph, wipe oil and impurity; Re-use sensitizing solution and carry out sensitized treatment, the proportioning of described sensitizing solution is: get 45g glucose and be dissolved in 100g water, get 5.6gSnCl
2, 2gSnCl
4be dissolved in the hydrochloric acid of 3ml36%, 50ml water is added again by after two mixed solution mixing, during sensitized treatment, single mouth spray gun is utilized to be sprayed toward surrounding at the center of sensitizing solution from photoetching hectograph, deionized water rinsing is used after spraying 3-5min continuously, then use 5% hydrochloric acid cleaning, use washed with de-ionized water more afterwards; Finally carry out spraying silver operation, spraying silver-colored solution ratio used is: 5g glucose, 3.5ml formaldehyde are dissolved in 100ml water, get 0.5gNaOH and be dissolved in 25ml water, add 0.5gPb (CH after being heated to 60 DEG C
3cOO)
2, then two mixed solutions are mixed to form a solution; Get 2gAnNO
3, 3.5gNH
4oH is dissolved in 25ml water, adds the NaOH solution of 5ml4% afterwards, finally adds the Cu (NO of 0.5ml0.2%
3)
2solution, forms No. two solution, adopts rush-harvesting and rush-planting nozzle a solution, No. two solution to be sprayed to surrounding from the center of photoetching hectograph simultaneously, until the hologram pattern of complete display appears in photoetching hectograph, then cleans photoetching hectograph by deionized water.
The electroforming solution component that electroforming uses is: nickel sulfamic acid 400g/L, boric acid 30g/L, anodic dissolution agent 6.0g/L, negative electrode leveling agent 0.5g/L, high-sulfur nickel brightener 0.8g/L, surface are except hole agent 0.1g/L; After electroforming solution preparation, use the abundant agitation and filtration of electric stirring filter at least 72 hours, then, under no-load current condition, do negative electrode with CI carry out electrolytic treatments 7-15 days continuously; Electroforming temperature 50 C, pH value 4.0, voltage 2 ~ 12V, cathode-current density 6.0A/dm2, no-load current density 0.5A/dm2, cathode efficiency 96%.The nickel layer thickness that electroforming is formed is 50-100um.
(2) coating waste water is carried out to PET film:
1) PET film is wrapped on coating machine, that is, PET film volume is arranged on the unreeling shaft of coating machine, and the end that PET film is rolled up is arranged on wind-up roll after passing between roller platen and net roller; Alcohol is utilized to dilute mould release, and the mould release diluted is poured in the coating pan of coating machine and stir, open coating machine subsequently and be coated with mould release in PET film, the PET film being coated with mould release is passed in wrapup procedure from baking oven, makes mould release solidify to form release layer in PET film; Wherein net roller adopts 250 orders, and oven for drying temperature range is 90-130 DEG C, and the rotating speed of wind-up roll is 85m/min, and mould release wet coating amount is 4.5-5.0g/m
2, mould release solid content is 0.8%, and coating thickness is about 5um;
2) coating machine is utilized to be coated with chromatograph on the release layer of PET film scribbling mould release,
That is, PET film volume is arranged on the unreeling shaft of coating machine, and the end that PET film is rolled up is arranged on wind-up roll after passing between roller platen and net roller; The resin solution being mixed with toner is poured in the coating pan of coating machine and stir, open coating machine coating resin solution in PET film subsequently, the PET film being coated with resin solution is passed in wrapup procedure from baking oven, make resin solution solidify to form chromatograph in PET film, net roller adopts 220 orders, and oven for drying temperature range is 85-160 DEG C, the rotating speed of wind-up roll is 83m/min, resin solution viscosity is 15-17S, and resin solution solid content is 22%, and wet coating amount is 5.0-5.5g/m
2, the dry measure of the resin after drying on release layer is 1.0-1.2g/m
2;
(3) hologram pattern on false proof working version is molded in PET film: false proof working version is clipped in the roller of high speed moulding press, roller is heated to 90-100 DEG C, with 40kg/cm
2false proof working version in roller is pressed in PET film by the pressure of left and right, makes the hologram pattern on false proof working version be imprinted on the chromatograph of PET film, and form Information Level, wherein the hardness of roller is HS97-HS99;
(4) PET film after mold pressing sent in vacuum aluminum-plating machine, aluminize on an information layer under vacuum conditions, form uniform aluminium coated, aluminum layer thickness is
aluminum-spraying machine rotating speed is 400-500m/min; Adopt boron nitride evaporation boat in vacuum aluminum-plating machine, boron nitride evaporation boat electric current is 700-800A, voltage 7-8V, and vacuum is (7-9) × 10
-2pa, aluminium wire diameter is 1.5mm, and the wire feed rate of aluminium wire is 0.8-1.2m/min.
(5) utilize coating machine glue coating on the aluminium coated of PET film, that is, PET film volume is arranged on the unreeling shaft of coating machine, and the end that PET film is rolled up is arranged on wind-up roll after passing between roller platen and net roller; Poured into by glue in the coating pan of coating machine and stir, open coating machine glue coating in PET film subsequently, the PET film being coated with glue is passed in wrapup procedure from baking oven, makes glue solidify to form adhesive-layer in PET film; Before the PET film being coated with adhesive-layer is rolled by wind-up roll, stick not sticky paper at adhesive-layer; Wherein, net roller adopts 140-170 order, and oven for drying temperature range is 80-95 DEG C, and glue viscosity is 16-18S, and wind-up roll rotating speed is 90m/min, and glue wet coating amount is 8.0-9.0g/m
2, solid content is 22%;
(6) according to specification requirement, PET film cut, pack.
Claims (5)
1. a holographic thermoprinted film production method, is characterized in that, comprises the following steps:
(1) utilize litho machine to be engraved on photoetching hectograph by the hologram pattern designed, more silver-colored operation is sprayed to photoetching hectograph, more single piece of nickel version is formed to the electroforming of photoetching hectograph; Utilize plate joggling apparatus that single piece of nickel version is combined into satisfactory large version, form false proof working version to large version electroforming, the thickness of this false proof working version is 0.4-0.5mm, and the thickness deviation of false proof working version is less than 13um;
(2) coating waste water is carried out to PET film:
1) PET film is wrapped on coating machine, that is, PET film volume is arranged on the unreeling shaft of coating machine, and the end that PET film is rolled up is arranged on wind-up roll after passing between roller platen and net roller; Utilize alcohol and water dilution mould release, and the mould release diluted is poured in the coating pan of coating machine and stir, open coating machine subsequently and be coated with mould release in PET film, the PET film being coated with mould release is passed in wrapup procedure from baking oven, makes mould release solidify to form release layer in PET film; Wherein net roller adopts 250 orders, and oven for drying temperature range is 90-130 DEG C, and the rotating speed of wind-up roll is 85m/min, and mould release wet coating amount is 4.5-5.0g/m
2, mould release solid content is 0.8%, and coating thickness is about 5um;
2) coating machine is utilized to be coated with chromatograph on the release layer of PET film scribbling mould release, coating method is identical with coating mould release, wherein, pour the resin solution being mixed with toner in coating pan into, net roller adopts 220 orders, and oven for drying temperature range is 85-160 DEG C, the rotating speed of wind-up roll is 83m/min, resin solution viscosity is 15-17S, and resin solution solid content is 22%, and wet coating amount is 5.0-5.5g/m
2, the dry measure of the resin after drying on release layer is 1.0-1.2g/m
2;
(3) hologram pattern on false proof working version is molded in PET film: false proof working version is attached in the roller of high speed moulding press, roller is heated to 180-200 DEG C, with 40kg/cm
2false proof working version in roller is pressed in PET film by the pressure of left and right, makes the hologram pattern on false proof working version be imprinted on the chromatograph of PET film, and form Information Level, wherein the hardness of roller is about HS97-HS99;
(4) PET film after mold pressing sent in vacuum aluminum-plating machine, aluminize on an information layer under vacuum conditions, form uniform aluminium coated, aluminum layer thickness is
aluminum-spraying machine rotating speed is 400-500m/min;
(5) coating machine glue coating on the aluminium coated of PET film is utilized, form adhesive-layer, coating method is identical with coating mould release, wherein, pour glue in coating pan, net roller adopts 140-170 order, oven for drying temperature range is 80-125 DEG C, glue viscosity is 16-18S, and wind-up roll rotating speed is 90m/min, and glue wet coating amount is 8.0-9.0g/m
2, solid content is 22%;
(6) according to specification requirement, PET film cut, pack.
2. holographic thermoprinted film production method as claimed in claim 1, is characterized in that: the silver-colored operation of described spray is specially, and rinses, wipe oil and impurity after first using the Escin solution of 0.5% to carry out cleaning to the surface of photoetching hectograph with water; Re-use sensitizing solution and carry out sensitized treatment, the proportioning of described sensitizing solution is: get 45g glucose and be dissolved in 100g water, get 5.6gSnCl
2, 2gSnCl
4be dissolved in the hydrochloric acid of 3ml36%, 50ml water is added again by after two mixed solution mixing, during sensitized treatment, single mouth spray gun is utilized to be sprayed toward surrounding at the center of sensitizing solution from photoetching hectograph, deionized water rinsing is used after spraying 3-5min continuously, then use 5% hydrochloric acid cleaning, use washed with de-ionized water more afterwards; Finally carry out spraying silver operation, spraying silver-colored solution ratio used is: 5g glucose, 3.5ml formaldehyde are dissolved in 100ml water, get 0.5gNaOH and be dissolved in 25ml water, add 0.5gPb (CH after being heated to 60 DEG C
3cOO)
2, then two mixed solutions are mixed to form a solution; Get 2gAnNO
3, 3.5gNH
4oH is dissolved in 25ml water, adds the NaOH solution of 5ml4% afterwards, finally adds the Cu (NO of 0.5ml0.2%
3)
2solution, forms No. two solution, adopts rush-harvesting and rush-planting nozzle a solution, No. two solution to be sprayed to surrounding from the center of photoetching hectograph simultaneously, until the hologram pattern of complete display appears in photoetching hectograph, then cleans photoetching hectograph by deionized water.
3. holographic thermoprinted film production method as claimed in claim 1, is characterized in that: the electroforming solution component that in described step (1), electroforming uses is: nickel sulfamic acid 400g/L, boric acid 30g/L, anodic dissolution agent 6.0g/L, negative electrode leveling agent 0.5g/L, high-sulfur nickel brightener 0.8g/L, surface are except hole agent 0.1g/L; After electroforming solution preparation, use the abundant agitation and filtration of electric stirring filter at least 72 hours, then, under no-load current condition, do negative electrode with CI carry out electrolytic treatments 7-15 days continuously; Electroforming temperature 50 C, pH value 4.0, voltage 2 ~ 12V, cathode-current density 6.0A/dm2, no-load current density 0.5A/dm2, cathode efficiency 96%.
4. the holographic thermoprinted film production method as described in claim 1 or 3, is characterized in that: the nickel layer thickness that electroforming is formed is 50-100um.
5. holographic thermoprinted film production method as claimed in claim 1, it is characterized in that: in the vacuum aluminum-plating machine in described step (4), adopt boron nitride evaporation boat, boron nitride evaporation boat electric current is 700-800A, voltage 7-8V, and vacuum is (7-9) × 10
-2pa, aluminium wire diameter is 1.5mm, and the wire feed rate of aluminium wire is 0.8-1.2m/min.
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