The production method of environment-friendly type alumite thermoprinting foil
Technical field
The present invention relates to a kind of production method of alumite thermoprinting foil, belong to printed apcksging material production and processing field.
Background technology
Alumite thermoprinting foil is a kind of material being coated with the film-form for hot transfer printing that the coating of several layers of difference in functionality and vacuum evaporation one deck aluminium coated are made in Plastic film surface, reprocess after being widely used in the printings such as paper plastic, conventional production methods is coating release layer: use coating butanone in biaxially oriented polyester film (BOPET) surface to be that the OP wax of primary solvent is through oven drying, organic solvent dries discharge, coating chromatograph: with butanone, 4-methyl-2 pentanone, cyclohexanone is solvent and requires to be added with 0% ~ 10% premetallized dye as colorant according to color, organic solvent dries discharge, aluminize, coated glue layer: coating one deck is with toluene, butanone, ethyl acetate is the glue-line coating of primary solvent, organic solvent dries discharge.The a large amount of poisonous and harmful organic solvent of above-mentioned conventional method meeting volatile emission, premetallized dye contains a large amount of chromium, cobalt, nickel heavy metal, easily causes to accumulate injure with human contact; Chromatograph coating with an organic solvent time in relative humidity more than 60% environment coating easily produce bad, cause owing to can absorb heat when coating volatilizees the water vapor condensation in air to cause the red blue product surface that waits to grow dim obviously in painting layer surface, affect product quality.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of steady quality of environment-friendly type to the production method of the insensitive alumite thermoprinting foil of ambient humidity, and organic solvent-free volatilizees, and does not need to use heavy metal coating.
For solving the problems of the technologies described above, the invention provides a kind of production method of new environment-friendly type alumite thermoprinting foil, produced the control of temperature Rate by the resin Composition be coated with each layer, each step, reach expection technique effect, concrete technical scheme is:
A. release layer is coated with:
Be the wax emulsion of dispersion solvent with water in the coating of biaxially oriented polyester film (BOPET) surface use 210 order anilox roll, four-temperature region bake out temperature 80 ~ 120 ~ 145 ~ 145 ~ 130 degree, releasing layer coating solvent is filled a prescription:
Wax emulsion (ACMOS101-5017)----1.7% ~ 7.1%
Water----93% ~ 98%
Defoamer----0.5%
Moistening flatting agent----0.5%.
B. chromatograph coating is coated with:
At release layer surface coating chromatograph coating, the coating of chromatograph coating use 120-200 order anilox roll take water as the water-based chromatograph coating of solvent, four-temperature region bake out temperature 80 ~ 120 ~ 150 ~ 150 ~ 130 degree, the basic component formula of water-based chromatograph coating:
Water-based chromatograph ready coating (wherein: waterborne polyurethane resin: water-borne acrylic resin
=3:1)----45%~50%
Water----45% ~ 50%
The pre-dispersed inclusion enclave of nanoscale organic pigment----0% ~ 10%
Defoamer----0.5%
Moistening flatting agent----0.5%.
C. aluminium coated:
Aluminium coated on chromatograph surface through vacuum aluminum-plating machine vacuum evaporation 200 ~ 500 dust thickness.
D. coated glue layer coating:
At aluminium coated surface coated glue layer coating, the coating of glue-line coating use 120-200 order anilox roll take water as the water-base cement coating of solvent, four-temperature region bake out temperature 80 ~ 120 ~ 145 ~ 145 ~ 130 degree,
Water-base cement coating solvent is filled a prescription:
Water-based glue-line ready coating (main component is aqueous polyurethane thermoplastic resin fat liquor)
----45%~50%
Water----45% ~ 50%
Aerosil powder----1% ~ 3%
Defoamer----0.5%
Moistening flatting agent----0.5%.
The invention has the beneficial effects as follows: product uses the organic solvents such as butanone, toluene, 4-methyl-2 pentanone, cyclohexanone through 3 coating nothings, only with water as solvent, dry gas and directly can discharge air, remain without poisonous and harmful, during Product processing, scene has no irritating odor.Use the pre-dispersed inclusion enclave of nanoscale organic pigment as colorant in chromatograph coating, not containing heavy metals such as chromium (Cr), cobalt (Co), nickel (Ni), make the most content of chromium in alumite thermoprinting foil (Cr) and only have 0 ~ 10mg/kg, belong to denier to remain, product is made on packing material and can not be caused directly or accumulation injury by human contact.Chromatograph coating uses water as solvent, coating will be caused to grow dim by the change of ambient humidity, guarantee product quality.
Accompanying drawing explanation
Fig. 1 is the hierarchy schematic diagram of environment-friendly type alumite thermoprinting foil.
Detailed description of the invention
The technical scheme of invention is further illustrated below with concrete adoptable a kind of embodiment in production.
A. release layer is coated with
Be the wax emulsion of dispersion solvent with water in the coating of biaxially oriented polyester film (BOPET) surface use 210 order anilox roll, four-temperature region bake out temperature 80 ~ 120 ~ 145 ~ 145 ~ 130 degree, four district's fan frequency conversions are respectively 40 ~ 45 ~ 50 ~ 50 ~ 50Hz;
Releasing layer coating solvent is filled a prescription:
Wax emulsion (ACMOS101-5017)----2%
Water----97%
Defoamer----0.5%
Moistening flatting agent----0.5%.
B. chromatograph coating is coated with
At release layer surface coating chromatograph coating, the coating of chromatograph coating use 200 order anilox roll take water as the water-based chromatograph coating of solvent, and four-temperature region bake out temperature 80 ~ 120 ~ 150 ~ 150 ~ 130 degree, four district's fan frequency conversions are respectively 40 ~ 45 ~ 50 ~ 50 ~ 50Hz
The basic component formula of water-based chromatograph coating:
Water-based chromatograph ready coating (wherein: waterborne polyurethane resin: water-borne acrylic resin=3:1)
----45%
Water----45%
The pre-dispersed inclusion enclave of nanoscale organic pigment (the micro-high-tensile strength series of BASF Ciba)----9%
Defoamer----0.5%
Moistening flatting agent----0.5%.
C. aluminium coated
At the surperficial aluminium coated through vacuum aluminum-plating machine vacuum evaporation 350 dust thickness of chromatograph to obtain gold lustre effect.
D. coated glue layer coating
At aluminium coated surface coated glue layer coating, the coating of glue-line coating use 200 order anilox roll take water as the water-base cement coating of solvent, and four-temperature region bake out temperature 80 ~ 120 ~ 145 ~ 145 ~ 130 degree, four district's fan frequency conversions are respectively 40 ~ 45 ~ 50 ~ 50 ~ 50Hz.
Water-base cement coating solvent is filled a prescription:
Water-based glue-line ready coating (main component is aqueous polyurethane thermoplastic resin fat liquor)
----49%
Water----49%
Aerosil powder----1%
Defoamer----0.5%
Moistening flatting agent----0.5%.
The foregoing is only a kind of detailed description of the invention of the present invention; not as restrictive condition of the present invention; any utilize thinking of the present invention, step to carry out simple transformation or directly, be applied indirectly to other correlative technology fields, be all in like manner included in scope of patent protection of the present invention.