CN103465668B - Hot stamping foil applied to overlapping hot stamping on gold stamping layer and preparation method of hot stamping foil - Google Patents

Hot stamping foil applied to overlapping hot stamping on gold stamping layer and preparation method of hot stamping foil Download PDF

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CN103465668B
CN103465668B CN201310450764.6A CN201310450764A CN103465668B CN 103465668 B CN103465668 B CN 103465668B CN 201310450764 A CN201310450764 A CN 201310450764A CN 103465668 B CN103465668 B CN 103465668B
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layer
hot stamping
parts
prepared
weight
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CN201310450764.6A
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CN103465668A (en
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何宗修
龚林
陈诗阳
杨正德
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云南玉溪东魅包装材料有限公司
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Abstract

The invention discloses a hot stamping foil applied to overlapping hot stamping on a gold stamping layer and a preparation method of the hot stamping foil. When overlapping hot stamping is carried out on an existing hot stamping foil, the defects that the transferring is incomplete, the hot stamping is not carried out on some portions due to omission, scumming is caused, powder falls off, and the edge of a hot stamping layer is not clear can happen. The hot stamping foil is composed of a base membrane layer, a release layer, a color coating layer, a vacuum aluminum coated layer and a gumming layer. The gumming layer is prepared by raw materials which comprise, by weight, 1-6 parts of chloroethylene-vinyl acetate resin, 1-10 parts of polyvinyl alcohol, 1-10 parts of acrylic ester, 1-5 parts of nitrocellulose, 1-5 parts of fumed silica, 20-70 parts of ethyl acetate, 10-50 parts of ethyl alcohol and 1-5 parts of propyl acetate. According to the hot stamping foil applied to the overlapping hot stamping on the gold stamping layer, the hot stamping foil has the good stamping performance and the good trimming performance, the overlapping hot stamping layer is complete in transferring, the edge is smooth and free of burrs, the adhesion is firm, the phenomena of dusting, powder falling and the like do not exist, the hot stamping effect is strong in third dimension, and the anti-fake performance is more outstanding.

Description

Be applied to alumite thermoprinting foil of overlapping thermoprint and preparation method thereof on gold stamping layer

Technical field

The present invention relates to forme or paper tinsel, and material therefor, more specifically relate to and be a kind ofly applied to alumite thermoprinting foil of overlapping thermoprint on gold stamping layer and preparation method thereof.

Background technology

Alumite thermoprinting foil is a kind of vacuum aluminum-coated new packaging material, through hot pressing principle, the pattern of engraving pre-in gold stamping version, lines and font etc. are transferred to stock surface, make it have the characteristics such as lovely luster, metal sense is strong, visual effect is remarkable, be widely used in thermoprint and the decoration on the surfaces such as paper products, plastic products, leather and fur products, woodwork.

Alumite thermoprinting foil is made up of base membrane layer, release layer, dyed layer, vacuum aluminium coated layer and gum layer, and its preparation method is included on base membrane layer and is coated with release layer and dyed layer, and after vacuum aluminum-coated, be coated with gum layer, cutting and rewinding forms.The serviceability influence factor of alumite thermoprinting foil is more, comparatively crucial with the character of stock surface texture and each coating of alumite thermoprinting foil, stock is different, and selected alumite thermoprinting foil also should be different, otherwise do not reach thermoprint decorative effect, also can cause unnecessary waste.

Along with the expansion of the alumite thermoprinting foil scope of application, designing requirement trends towards diversified and complicated, has occurred the gilding technology of overlapping thermoprint alumite thermoprinting foil on gold stamping layer.And the alumite thermoprinting foil product that prior art is produced does not reach overlapping thermoprint designing requirement, there will be in use procedure transfer complete, leak and scald and the drawback such as scumming, dry linting, thermoprint layer blur margin be clear, production efficiency is low, causes a large amount of raw and auxiliary material wastes.Because gold stamping layer is as stock, the different of essence are had from general paper products stock, containing mould release and dyed layer resin, dyestuffs such as water-soluble polyethylene waxes on gold stamping layer, its surface energy step-down, cause surface wettability poor, general alumite thermoprinting foil is difficult to above transfer bonds to.

Summary of the invention

For solving the deficiency of background technology, the present invention aims to provide one and has good boiling hot property and trimming, overlapping thermoprint layer transfer completely, the smooth of the edge impulse-free robustness and adhesion-tight, there is not the phenomenon such as firkin, shedding, hot stamping effects third dimension is strong, and what anti-counterfeiting performance was more outstanding is applied to alumite thermoprinting foil of overlapping thermoprint on gold stamping layer and preparation method thereof.

For achieving the above object, the present invention adopts following technological means: a kind of alumite thermoprinting foil being applied to overlapping thermoprint on gold stamping layer, is made up of base membrane layer, release layer, dyed layer, vacuum aluminium coated layer and gum layer.

Described release layer is prepared from according to parts by weight by following raw materials according: water soluble oxidized Tissuemat E 1-5 part, absolute ethyl alcohol 20-80 part, deionized water 20-80 part.Preferably, water soluble oxidized Tissuemat E 2-4 part, absolute ethyl alcohol 50-70 part, deionized water 40-70 part.

Described dyed layer is prepared from according to parts by weight by following raw materials according: carboxyl acrylic resin 10-20 part, acetylbutyrylcellulose 5-15 part, polyurethane 1-10 part, isocyanates 1-10 part, polyvinyl butyral resin 1-5 part, dyestuff 1-5 part, butanone 30-70, ethyl acetate 20-50 part, propyl acetate 1-5 part.Preferably, carboxyl acrylic resin 12-18 part, acetylbutyrylcellulose 8-12 part, polyurethane 3-7 part, isocyanates 3-6 part, polyvinyl butyral resin 2-4 part, dyestuff 2-4 part, butanone 45-60, ethyl acetate 30-40 part, propyl acetate 2-3 part.

Described gum layer is prepared from according to parts by weight by following raw materials according: vinyl chloride-vinyl acetate resin 1-6 part, polyvinyl alcohol 1-10 part, acrylate 1-10 part, celluloid 1-5 part, aerosil 1-5 part, ethyl acetate 20-70 part, ethanol 10-50 part, propyl acetate 1-5 part.Preferably, vinyl chloride-vinyl acetate resin 2-5 part, polyvinyl alcohol 3-8 part, acrylate 3-8 part, celluloid 2-3 part, aerosil 2-3 part, ethyl acetate 30-55 part, ethanol 20-40 part, propyl acetate 2-3 part.

The acrylate of described gum layer is made up of butyl acrylate and acrylic acid-2-ethyl caproite, and its composition is counted by weight: butyl acrylate 2-6 part, acrylic acid-2-ethyl caproite 1-5 part.

This is applied to the preparation method of the alumite thermoprinting foil of overlapping thermoprint on gold stamping layer, comprises the following steps:

(1) release layer coating fluid is prepared

A, stirring 3-5min adding in container by the load weighted absolute ethyl alcohol of formula rate and deionized water, mixing to obtain mixed liquor A;

B, to add in mixed liquor A by the load weighted water soluble oxidized Tissuemat E of formula rate, stir 3-5min gently, obtain anodized aluminium release layer coating fluid.

(2) dyed layer coating fluid is prepared

A, pressing the load weighted ethyl acetate of formula rate and propyl acetate, and the butanone of 60% adds stirring at normal temperature 5-10min in container, and mixing speed is 500-700r/min, obtains solution B;

B, add by the load weighted carboxyl acrylic resin of formula rate, acetylbutyrylcellulose, polyurethane, polyvinyl butyral resin, isocyanates in solution B successively, stirring at normal temperature 300-360min, mixing speed is 500-700r/min, until dissolve completely, obtains polymer solution C;

C, stirring at normal temperature 60-100min in the container added by the load weighted dyestuff of formula rate containing surplus butanone, mixing speed is 300-500r/min, until dyestuff dissolves completely or is uniformly dispersed, obtains dye solution;

D, the dye solution obtained by step c join in the polymer solution C of step b, stirring at normal temperature 60-100min, and mixing speed is 500-700r/min, filter and obtain anodized aluminium dyed layer coating fluid with 250 eye mesh screens.

(3) gum layer coating is prepared

A, add stirring at normal temperature 3-5min in container by the load weighted ethyl acetate of formula rate, ethanol and propyl acetate, mixing speed is 500-700r/min, obtains mixed liquor D;

B, add successively in mixed liquor D by the load weighted vinyl chloride-vinyl acetate resin of formula rate, polyvinyl alcohol, acrylate, stirring 120-150min, mixing speed is 500-700r/min, until dissolution of polymer is complete, obtains mixed liquor E;

Add by the load weighted celluloid of formula rate, aerosil successively in c, the mixed liquor E that obtains in step b, stir 240-280min, mixing speed is 500-700r/min, until polymer dissolves completely or is uniformly dispersed, filters and obtain gum layer coating with 200 eye mesh screens.

(4) release layer coating: by the release layer coating fluid for preparing at ambient humidity at 50-60%, by anilox roll with 3.0-5.0g/m 2coating weight be coated on base membrane layer, through machine speed 95-105m/min, temperature 85 ~ 95 DEG C, 110 ~ 120 DEG C, 130 ~ 140 DEG C, 120 ~ 130 DEG C four groups of drying channel of coating machines are dried.

(5) dyed layer coating: by the dyed layer coating fluid for preparing at ambient humidity at 50-60%, by anilox roll with 5.0-6.0g/m 2coating weight be coated on and scribble on the base membrane layer of mould release, through machine speed 95-105m/min, temperature 85 ~ 95 DEG C, 120 ~ 130 DEG C, 145 ~ 155 DEG C, 125 ~ 135 DEG C four groups of drying channel of coating machines are dried.

(6) vacuum aluminum-coated.

(7) gum layer coating: by the gum layer coating for preparing at ambient humidity at 50-60%, by anilox roll with 5.0-6.0g/m 2coating weight be coated on aluminium coated, through machine speed 95-105m/min, temperature 85 ~ 95 DEG C, 105 ~ 115 DEG C, 125 ~ 135 DEG C, 115 ~ 125 DEG C four groups of drying channel of coating machines are dried.

(8) as required alumite thermoprinting foil cut, pack.

the present invention has following beneficial effect:1. the present invention is applied to the alumite thermoprinting foil of overlapping thermoprint on gold stamping layer, and it has good upper boiling hot property and trimming, and overlapping thermoprint layer transfer completely, the smooth of the edge impulse-free robustness and adhesion-tight, there is not the phenomenon such as firkin, shedding, hot stamping effects third dimension is strong, and anti-counterfeiting performance is more outstanding.When solving the overlapping thermoprint of alumite thermoprinting foil that prior art produces, product does not reach designing requirement, there will be in use procedure transfer complete, leak and scald and the drawback such as scumming, dry linting, thermoprint layer edge blurry be unclear.

2. simple, the properties of product of the alumite thermoprinting foil production technology being applied to overlapping thermoprint on gold stamping layer of the present invention are stablized, and do not increase production cost; Production process does not use " triphen " solvent, reduces or eliminates the harm to environment and personnel, has environmental protection characteristic.

3. enclosed type crosslinking and curing agent isocyanates is contained in alumite thermoprinting foil dyed layer formula of the present invention, this closed curing agent Kaifeng after film is heated, discharge-nco group and react to be formed with the hydroxyl on molecular resin chain, amino groups and be cross-linked, the later coating of cross-linking reaction has quite high hardness and toughness, trimming superior performance.The polyvinyl alcohol that gum layer contains, has certain wellability to the gold stamping layer of low-surface-energy, and Adhesion enhancement and bonding firmly, ensure that properties of product are stablized, improve yield rate.

4. the alumite thermoprinting foil being applied to overlapping thermoprint on gold stamping layer that prepared by the present invention is applied widely, can carry out the overlapping thermoprint justifying pressure circle, platen on common and laser gold blocking layer.

Detailed description of the invention

embodiment 1

The present embodiment produces " Red River " brand tipping paper in Qingdao Jia Ze packaging material Co., Ltd, and on common purple hot stamping layer, adopt overlapping this alumite thermoprinting foil of thermoprint of circle pressure circle mode by designing requirement, concrete formula number is counted:

Described release layer is prepared from according to parts by weight by following raw materials according: water soluble oxidized Tissuemat E 3.0kg, absolute ethyl alcohol 50.0kg, deionized water 47.0kg.

Described dyed layer is prepared from according to parts by weight by following raw materials according: carboxyl acrylic resin 15.0kg, acetylbutyrylcellulose 6.0kg, polyurethane 5.0kg, isocyanates 6kg, polyvinyl butyral resin 3.0kg, dyestuff 2.0kg, butanone 40.0kg, ethyl acetate 25.0kg, propyl acetate 4.0kg.

Described gum layer is prepared from according to parts by weight by following raw materials according: vinyl chloride-vinyl acetate resin 5.0kg, polyvinyl alcohol 6.0kg, butyl acrylate 4.0kg, acrylic acid-2-ethyl caproite 1.0kg, celluloid 2.0kg, aerosil 2.0kg, ethyl acetate 40.0kg, ethanol 35.0kg, propyl acetate 5.0kg.

Produce according to following steps:

(1) release layer coating fluid is prepared

A, stirring 3min adding in container by load weighted absolute ethyl alcohol and deionized water, mixing to obtain mixed liquor A;

B, to add in mixed liquor A by load weighted water soluble oxidized Tissuemat E, stir 4min gently, obtain anodized aluminium release layer coating fluid.

(2) dyed layer coating fluid is prepared

A, by load weighted ethyl acetate and propyl acetate, and the butanone of 60% weight adds stirring at normal temperature 8min in container, and mixing speed is 550r/min, obtains solution B;

B, add successively in solution B by load weighted carboxyl acrylic resin, acetylbutyrylcellulose, polyurethane, polyvinyl butyral resin, isocyanates, stirring at normal temperature 300min, mixing speed is 700r/min, until dissolve completely, obtains polymer solution C;

C, stirring at normal temperature 60min in the container added by load weighted dyestuff containing surplus butanone, mixing speed is 500r/min, until dyestuff dissolves completely or is uniformly dispersed, obtains dye solution;

D, the dye solution obtained by step c join in the polymer solution C of step b, stirring at normal temperature 100min, and mixing speed is 500r/min, filter and obtain anodized aluminium dyed layer coating fluid with 250 eye mesh screens.

(3) gum layer coating is prepared

A, add stirring at normal temperature 3min in container by load weighted ethyl acetate, ethanol and propyl acetate, mixing speed is 700r/min, obtains mixed liquor D;

B, add by load weighted vinyl chloride-vinyl acetate resin, polyvinyl alcohol, acrylate, stirring 120min in mixed liquor D successively, mixing speed is 700r/min, until dissolution of polymer is complete, obtains mixed liquor E;

Add by load weighted celluloid, aerosil successively in c, the mixed liquor E that obtains in step b, stir 240min, mixing speed is 700r/min, until polymer dissolves completely or is uniformly dispersed, filters and obtain gum layer coating with 200 eye mesh screens.

(4) release layer coating: by the release layer coating fluid for preparing at ambient humidity at 50-60%, by anilox roll with 3.0-5.0g/m 2coating weight be coated on base membrane layer, through machine speed 100m/min, temperature 90 DEG C of-120 DEG C of-135 DEG C of-125 DEG C of four groups of drying channel of coating machines are dried.

(5) dyed layer coating: by the dyed layer coating fluid for preparing at ambient humidity at 50-60%, by anilox roll with 5.0-6.0g/m 2coating weight be coated on and scribble on the base membrane layer of mould release, through machine speed 100m/min, temperature 90 DEG C of-130 DEG C of-150 DEG C of-135 DEG C of four groups of drying channel of coating machines are dried.

(6) vacuum aluminum-coated

(7) gum layer coating: by the gum layer coating for preparing at ambient humidity at 50-60%, by anilox roll with 5.0-6.0g/m 2coating weight be coated on aluminium coated, through machine speed 105m/min, temperature 90 DEG C of-110 DEG C of-130 DEG C of-125 DEG C of four groups of drying channel of coating machines are dried.

(8) as required alumite thermoprinting foil cut, pack.

Alumite thermoprinting foil prepared by the present invention in use upper scald property and trimming good, completely, line edge Glabrous thorn and adhesion-tight, there is not the phenomenon such as firkin, shedding, hot stamping effects third dimension is strong, and anti-counterfeiting performance is more outstanding in overlapping thermoprint layer transfer.

embodiment 2

The present embodiment produces " weighing nine greatly " brand tipping paper in Yuxi Filter Plug Wrap Paper Mill, Yunnan, and on radium-shine thermoprint layer, adopt overlapping this alumite thermoprinting foil of thermoprint of circle pressure circle mode by designing requirement, concrete formula number is counted:

Described release layer is prepared from according to parts by weight by following raw materials according: water soluble oxidized Tissuemat E 5.0kg part, absolute ethyl alcohol 70.0kg, deionized water 30.0kg.

Described dyed layer is prepared from according to parts by weight by following raw materials according: carboxyl acrylic resin 20.0kg, acetylbutyrylcellulose 8.0kg, polyurethane 7.0kg, isocyanates 2kg, polyvinyl butyral resin 1.0kg, dyestuff 5.0kg, butanone 70.0kg, ethyl acetate 50.0kg, propyl acetate 2.0kg.

Described gum layer is prepared from according to parts by weight by following raw materials according: vinyl chloride-vinyl acetate resin 2.0kg, polyvinyl alcohol 3.0kg, butyl acrylate 6.0kg, acrylic acid-2-ethyl caproite 2.0kg, celluloid 5.0kg, aerosil 1.0kg, ethyl acetate 70.0kg, ethanol 50.0kg, propyl acetate 3.0kg.

Produce according to following steps:

(1) release layer coating fluid is prepared

A, stirring 5min adding in container by load weighted absolute ethyl alcohol and deionized water, mixing to obtain mixed liquor A;

B, to add in mixed liquor A by load weighted water soluble oxidized Tissuemat E, stir 3min gently, obtain anodized aluminium release layer coating fluid.

(2) dyed layer coating fluid is prepared

A, by load weighted ethyl acetate and propyl acetate, and the butanone of 60% weight adds stirring at normal temperature 10min in container, and mixing speed is 500r/min, obtains solution B;

B, add successively in solution B by load weighted carboxyl acrylic resin, acetylbutyrylcellulose, polyurethane, polyvinyl butyral resin, isocyanates, stirring at normal temperature 360min, mixing speed is 500r/min, until dissolve completely, obtains polymer solution C;

C, stirring at normal temperature 100min in the container added by load weighted dyestuff containing surplus butanone, mixing speed is 300r/min, until dyestuff dissolves completely or is uniformly dispersed, obtains dye solution;

D, the dye solution obtained by step c join in the polymer solution C of step b, stirring at normal temperature 60min, and mixing speed is 700r/min, filter and obtain anodized aluminium dyed layer coating fluid with 250 eye mesh screens.

(3) gum layer coating is prepared

A, add stirring at normal temperature 5min in container by load weighted ethyl acetate, ethanol and propyl acetate, mixing speed is 500r/min, obtains mixed liquor D;

B, add by load weighted vinyl chloride-vinyl acetate resin, polyvinyl alcohol, acrylate, stirring 150min in mixed liquor D successively, mixing speed is 500r/min, until dissolution of polymer is complete, obtains mixed liquor E;

Add by load weighted celluloid, aerosil successively in c, the mixed liquor E that obtains in step b, stir 280min, mixing speed is 500r/min, until polymer dissolves completely or is uniformly dispersed, filters and obtain gum layer coating with 200 eye mesh screens.

(4) release layer coating: by the release layer coating fluid for preparing at ambient humidity at 50-60%, by anilox roll with 3.0-5.0g/m 2coating weight be coated on base membrane layer, through machine speed 95m/min, temperature 85 DEG C of-115 DEG C of-140 DEG C of-120 DEG C of four groups of drying channel of coating machines are dried.

(5) dyed layer coating: by the dyed layer coating fluid for preparing at ambient humidity at 50-60%, by anilox roll with 5.0-6.0g/m 2coating weight be coated on and scribble on the base membrane layer of mould release, through machine speed 105m/min, temperature 85 DEG C of-120 DEG C of-155 DEG C of-130 DEG C of four groups of drying channel of coating machines are dried.

(6) vacuum aluminum-coated

(7) gum layer coating: by the gum layer coating for preparing at ambient humidity at 50-60%, by anilox roll with 5.0-6.0g/m 2coating weight be coated on aluminium coated, through machine speed 100m/min, temperature 90 DEG C of-110 DEG C of-130 DEG C of-125 DEG C of four groups of drying channel of coating machines are dried.

(8) as required alumite thermoprinting foil cut, pack.

Alumite thermoprinting foil prepared by the present invention is applicable to the overlapping thermoprint of radium-shine thermoprint layer, and its serviceability is stablized, and its thermoprint speed can reach 90-110m/min, greatly enhances productivity and yield rate.

embodiment 3

The present embodiment produces the outer box paperboard of " Yuxi " brand in printing house of Yunnan Yuxi, and on laser gold blocking layer, adopt overlapping this alumite thermoprinting foil of thermoprint of platen mode by designing requirement, concrete formula number is counted:

Described release layer is prepared from according to parts by weight by following raw materials according: water soluble oxidized Tissuemat E 1.0kg part, absolute ethyl alcohol 20.0kg, deionized water 20.0kg.

Described dyed layer is prepared from according to parts by weight by following raw materials according: carboxyl acrylic resin 10.0kg, acetylbutyrylcellulose 15.0kg, polyurethane 10.0kg, isocyanates 10kg, polyvinyl butyral resin 4.0kg, dyestuff 1.0kg, butanone 60.0kg, ethyl acetate 40.0kg, propyl acetate 1.0kg.

Described gum layer is prepared from according to parts by weight by following raw materials according: vinyl chloride-vinyl acetate resin 6.0kg, polyvinyl alcohol 10.0kg, butyl acrylate 2.0kg, acrylic acid-2-ethyl caproite 5.0kg, celluloid 1.0kg, aerosil 3.0kg, ethyl acetate 30.0kg, ethanol 20.0kg, propyl acetate 2.0kg.

Produce according to following steps:

(1) release layer coating fluid is prepared

A, stirring 3-5min adding in container by load weighted absolute ethyl alcohol and deionized water, mixing to obtain mixed liquor A;

B, to add in mixed liquor A by load weighted water soluble oxidized Tissuemat E, stir 3-5min gently, obtain anodized aluminium release layer coating fluid.

(2) dyed layer coating fluid is prepared

A, by load weighted ethyl acetate and propyl acetate, and the butanone of 60% weight adds stirring at normal temperature 5min in container, and mixing speed is 700r/min, obtains solution B;

B, add successively in solution B by load weighted carboxyl acrylic resin, acetylbutyrylcellulose, polyurethane, polyvinyl butyral resin, isocyanates, stirring at normal temperature 330min, mixing speed is 600r/min, until dissolve completely, obtains polymer solution C;

C, stirring at normal temperature 80min in the container added by load weighted dyestuff containing surplus butanone, mixing speed is 400r/min, until dyestuff dissolves completely or is uniformly dispersed, obtains dye solution;

D, the dye solution obtained by step c join in the polymer solution C of step b, stirring at normal temperature 80min, and mixing speed is 600r/min, filter and obtain anodized aluminium dyed layer coating fluid with 250 eye mesh screens.

(3) gum layer coating is prepared

A, load weighted ethyl acetate, ethanol and propyl acetate are added stirring at normal temperature 4min in container, mixing speed is 600r/min, obtains mixed liquor D;

B, add by load weighted vinyl chloride-vinyl acetate resin, polyvinyl alcohol, acrylate, stirring 130min in mixed liquor D successively, mixing speed is 600r/min, until dissolution of polymer is complete, obtains mixed liquor E;

Add by load weighted celluloid, aerosil successively in c, the mixed liquor E that obtains in step b, stir 260min, mixing speed is 600r/min, until polymer dissolves completely or is uniformly dispersed, filters and obtain gum layer coating with 200 eye mesh screens.

(4) release layer coating: by the release layer coating fluid for preparing at ambient humidity at 50-60%, by anilox roll with 3.0-5.0g/m 2coating weight be coated on base membrane layer, through machine speed 100m/min, temperature 95 DEG C of-110 DEG C of-130 DEG C of-130 DEG C of four groups of drying channel of coating machines are dried.

(5) dyed layer coating: by the dyed layer coating fluid for preparing at ambient humidity at 50-60%, by anilox roll with 5.0-6.0g/m 2coating weight be coated on and scribble on the base membrane layer of mould release, through machine speed 95m/min, temperature 95 DEG C of-125 DEG C of-145 DEG C of-125 DEG C of four groups of drying channel of coating machines are dried.

(6) vacuum aluminum-coated

(7) gum layer coating: by the gum layer coating for preparing at ambient humidity at 50-60%, by anilox roll with 5.0-6.0g/m 2coating weight be coated on aluminium coated, through machine speed 105m/min, temperature 95 DEG C of-115 DEG C of-135 DEG C of-120 DEG C of four groups of drying channel of coating machines are dried.

(8) as required alumite thermoprinting foil cut, pack.

Alumite thermoprinting foil prepared by the present invention is applicable to the overlapping thermoprint of platen paperboard, folded boiling hot layer adhesion-tight, not firkin, shedding, and wear-resisting.Hot stamping effects is neatly delicate and pretty, and flush edge Glabrous stings, and third dimension is strong, and anti-counterfeiting performance and decorative effect are given prominence to.

Claims (5)

1. be applied to the alumite thermoprinting foil of overlapping thermoprint on gold stamping layer, be made up of base membrane layer, release layer, dyed layer, vacuum aluminium coated layer and gum layer, it is characterized in that,
Described gum layer is prepared from according to parts by weight by following raw materials according: vinyl chloride-vinyl acetate resin 1-6 part, polyvinyl alcohol 1-10 part, acrylate 1-10 part, celluloid 1-5 part, aerosil 1-5 part, ethyl acetate 20-70 part, ethanol 10-50 part, propyl acetate 1-5 part;
Described release layer is prepared from according to parts by weight by following raw materials according: water soluble oxidized Tissuemat E 1-5 part, absolute ethyl alcohol 20-80 part, deionized water 20-80 part;
Described dyed layer is prepared from according to parts by weight by following raw materials according: carboxyl acrylic resin 10-20 part, acetylbutyrylcellulose 5-15 part, polyurethane 1-10 part, isocyanates 1-10 part, polyvinyl butyral resin 1-5 part, dyestuff 1-5 part, butanone 30-70, ethyl acetate 20-50 part, propyl acetate 1-5 part.
2. be applied to the alumite thermoprinting foil of overlapping thermoprint on gold stamping layer as claimed in claim 1, it is characterized in that,
Described gum layer is prepared from according to parts by weight by following raw materials according: vinyl chloride-vinyl acetate resin 2-5 part, polyvinyl alcohol 3-8 part, acrylate 3-8 part, celluloid 2-3 part, aerosil 2-3 part, ethyl acetate 30-55 part, ethanol 20-40 part, propyl acetate 2-3 part.
3. be applied to the alumite thermoprinting foil of overlapping thermoprint on gold stamping layer as claimed in claim 1, it is characterized in that,
Described release layer is prepared from according to parts by weight by following raw materials according: water soluble oxidized Tissuemat E 2-4 part, absolute ethyl alcohol 50-70 part, deionized water 40-70 part;
Described dyed layer is prepared from according to parts by weight by following raw materials according: carboxyl acrylic resin 12-18 part, acetylbutyrylcellulose 8-12 part, polyurethane 3-7 part, isocyanates 3-6 part, polyvinyl butyral resin 2-4 part, dyestuff 2-4 part, butanone 45-60, ethyl acetate 30-40 part, propyl acetate 2-3 part.
4. the alumite thermoprinting foil being applied to overlapping thermoprint on gold stamping layer according to any one of claims 1 to 3, it is characterized in that, the acrylate of described gum layer is made up of butyl acrylate and acrylic acid-2-ethyl caproite, and its composition is counted by weight: butyl acrylate 2-6 part, acrylic acid-2-ethyl caproite 1-5 part.
5. the preparation method being applied to the alumite thermoprinting foil of overlapping thermoprint on gold stamping layer according to any one of claims 1 to 3, is characterized in that, comprise the following steps:
(1) release layer coating fluid is prepared
A, stirring 3-5min adding in container by the load weighted absolute ethyl alcohol of formula rate and deionized water, mixing to obtain mixed liquor A;
B, to add in mixed liquor A by the load weighted water soluble oxidized Tissuemat E of formula rate, stir 3-5min gently, obtain anodized aluminium release layer coating fluid;
(2) dyed layer coating fluid is prepared
A, pressing the load weighted ethyl acetate of formula rate and propyl acetate, and the butanone of 60% adds stirring at normal temperature 5-10min in container, and mixing speed is 500-700r/min, obtains solution B;
B, add by the load weighted carboxyl acrylic resin of formula rate, acetylbutyrylcellulose, polyurethane, polyvinyl butyral resin, isocyanates in solution B successively, stirring at normal temperature 300-360min, mixing speed is 500-700r/min, until dissolve completely, obtains polymer solution C;
C, stirring at normal temperature 60-100min in the container added by the load weighted dyestuff of formula rate containing surplus butanone, mixing speed is 300-500r/min, until dyestuff dissolves completely or is uniformly dispersed, obtains dye solution;
D, the dye solution obtained by step c join in the polymer solution C of step b, stirring at normal temperature 60-100min, and mixing speed is 500-700r/min, filter and obtain anodized aluminium dyed layer coating fluid with 250 eye mesh screens;
(3) gum layer coating is prepared
A, add stirring at normal temperature 3-5min in container by the load weighted ethyl acetate of formula rate, ethanol and propyl acetate, mixing speed is 500-700r/min, obtains mixed liquor D;
B, add successively in mixed liquor D by the load weighted vinyl chloride-vinyl acetate resin of formula rate, polyvinyl alcohol, acrylate, stirring 120-150min, mixing speed is 500-700r/min, until dissolution of polymer is complete, obtains mixed liquor E;
Add by the load weighted celluloid of formula rate, aerosil successively in c, the mixed liquor E that obtains in step b, stir 240-280min, mixing speed is 500-700r/min, until polymer dissolves completely or is uniformly dispersed, filters and obtain gum layer coating with 200 eye mesh screens;
(4) release layer coating: by the release layer coating fluid for preparing at ambient humidity at 50-60%, by anilox roll with 3.0-5.0g/m 2coating weight be coated on base membrane layer, through machine speed 95-105m/min, temperature 85 ~ 95 DEG C, 110 ~ 120 DEG C, 130 ~ 140 DEG C, 120 ~ 130 DEG C four groups of drying channel of coating machines are dried;
(5) dyed layer coating: by the dyed layer coating fluid for preparing at ambient humidity at 50-60%, by anilox roll with 5.0-6.0g/m 2coating weight be coated on and scribble on the base membrane layer of mould release, through machine speed 95-105m/min, temperature 85 ~ 95 DEG C, 120 ~ 130 DEG C, 145 ~ 155 DEG C, 125 ~ 135 DEG C four groups of drying channel of coating machines are dried;
(6) vacuum aluminum-coated;
(7) gum layer coating: by the gum layer coating for preparing at ambient humidity at 50-60%, by anilox roll with 5.0-6.0g/m 2coating weight be coated on aluminium coated, through machine speed 95-105m/min, temperature 85 ~ 95 DEG C, 105 ~ 115 DEG C, 125 ~ 135 DEG C, 115 ~ 125 DEG C four groups of drying channel of coating machines are dried;
(8) as required alumite thermoprinting foil cut, pack.
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