CN108146128B

CN108146128B - Pearlescent cold-wave film and manufacturing process thereof

Info

Publication number: CN108146128B
Application number: CN201711450407.4A
Authority: CN
Inventors: 何毅松; 徐建林
Original assignee: Shaoxing Yilong Laser Technology Co ltd
Current assignee: Shaoxing Yilong Laser Technology Co ltd
Priority date: 2017-12-27
Filing date: 2017-12-27
Publication date: 2020-06-02
Anticipated expiration: 2037-12-27
Also published as: CN108146128A

Abstract

The invention discloses a pearlescent cold stamping film, which comprises a PET (polyethylene terephthalate) original film, wherein a release layer is coated on the PET original film, a pearlescent layer is coated on the release layer, pearlescent slurry is added in the pearlescent layer and is uniformly dispersed, so that the cold stamping film has pearlescent color, and a protective layer is coated on the pearlescent layer. The protective layer is directly coated on the pearlescent layer, so that a vacuum aluminum (medium) plating layer is omitted, the production cost is greatly reduced, the production efficiency and the product yield are improved, and the hot stamping effect is not influenced.

Description

Pearlescent cold-wave film and manufacturing process thereof

Technical Field

The invention relates to a composite film, in particular to a pearlescent cold wave film and a manufacturing process thereof.

Background

The cold stamping refers to that under the condition of normal temperature, the pictures and texts needing to be hot stamped are pasted on the surface of a printing stock through an adhesive. The realization method is to directly utilize two units of the original offset press, one group of printing adhesives and one group of transfer metal hot stamping foils. The cold stamping speed is high, and the efficiency is high; the hot stamping transfer and printing are completed by one-time paper feeding, and the registration precision is high; the resolution of the cold stamping plate can reach the resolution of an offset printing plate, and fine pictures and texts can be stamped; the hot stamping is carried out at normal temperature without heating, and the energy can be saved by hot stamping the surface of the material sensitive to the temperature.

Disclosure of Invention

The invention aims to provide a pearly-luster cold-stamping film and a manufacturing process thereof, and the pearly-luster cold-stamping film has the characteristics of easy separation from a PET (polyethylene terephthalate) original film, good binding force with a base material, suitability for printing, good ink binding force and pearly-luster effect.

In order to achieve the purpose, the invention provides the technical scheme that: a pearly-luster cold stamping film comprises a PET raw film, wherein a release layer is coated on the PET raw film, a pearly-luster layer is coated on the release layer, a protective layer is coated on the pearly-luster layer, the release layer adopts water and alcohol as solvents, an additive is added after mixing, the stirring is uniform, the pearly-luster layer adopts ethyl acetate and ethyl ester n-propyl ester as coloring agents, meanwhile, pearly-luster slurry is added, and the dispersion is uniform.

A manufacturing method of a pearlescent cold wave film comprises the following steps:

1) coating a release layer on the PET film: circularly producing small barrels, namely using a 200-mesh water-based special electric carving roller, wherein the wet coating amount is 6 +/-0.3 g/square meter, a sweeping roller is required, the reverse rotation speed is 30 +/-5 m/min, the film shrinkage after coating is controlled to be 0-4mm, the vehicle speed is 90 +/-10 m/min, placing a water-absorbing sponge at a winding and unwinding position, using an electrostatic copper wool yarn, detecting the coating stripping force, controlling the average value to be 0.04-0.10N/mm, and rolling to ensure that no rib can be formed;

2) coating a pearlescent layer on the release layer: 200-mesh special oil electric carving roller, the wet coating amount is 6.0 +/-0.3 g per square meter, the shrinkage of the coated film is controlled to be 0-4mm, the vehicle speed is 90 +/-10 m per min, electrostatic copper wool yarns are needed, a water-absorbing sponge is placed at the winding and unwinding position, according to the difference of pearl effect, the adding weight of general pearl slurry accounts for 15-25% of the weight of the coating of the pearl layer, the coating dry amount is controlled to be 1.80-2.20g per square meter, the stripping force of the coating needs to be detected, the average value is controlled to be 0.04-0.15N/mm, and no rib can be formed in the rolling process;

3) coating a protective layer on the pearlescent layer: after the pearl layer is coated, a protective layer can be coated immediately, the dry weight is controlled to be 0.80-1.00 g/square meter and 250 meshes of ceramic roller (the wet coating amount is 5.0 +/-0.3 g/square meter). Controlling the film shrinkage after coating to be 0-1mm, controlling the vehicle speed to be 100 +/-10 m/min, using electrostatic copper wool wires, placing a water-absorbing sponge at a winding and unwinding position, detecting the peeling force and the edge cutting property of the coating, and requiring the average value of the peeling force to be 0.03-0.08N/mm;

4) cutting into finished products: rewinding and cutting within 48 hours after the protective layer is coated, checking the quality of the film, cutting two sides, rolling the coating layer inwards, ensuring that the diameter is not more than 550mm, the rolling tension is less than 6kg, the joint spacing is more than 500 m, the standard stripping force is 0.03-0.08N/mm, and packaging according to the requirements of rolled products.

The invention has the beneficial effects that: vacuum aluminizing and corona procedures are reduced for the traditional cold-wave film, the production cost is reduced, and the cold-wave film has pearlescent color, so that the attractiveness of the cold-wave film is improved.

Detailed Description

Example 1

A pearly-luster cold stamping film comprises a PET raw film, wherein a release layer is coated on the PET raw film, a pearly-luster layer is coated on the release layer, a protective layer is coated on the pearly-luster layer, the pearly-luster layer adopts ethyl acetate and ethyl ester n-propyl ester as coloring agents, and pearly-luster slurry is added and uniformly dispersed. Therefore, compared with the traditional cold wave film, the vacuum aluminum plating layer is reduced, the production cost is reduced, and the cold wave film has pearlescent color.

The release layer adopts water and alcohol as solvents, and the additives are added after mixing and are uniformly stirred. Water and alcohol are used as solvents, so that the PET film can be easily separated from the PET original film, the binding force with a base material is good, the printing ink is suitable for printing, and the binding force of the printing ink is good.

The addition weight of the pearlescent slurry accounts for 15-25% of the weight of the pearlescent layer coating. Thereby leading the pearl effect to be better.

Vacuum aluminizing and corona procedures are reduced for the traditional cold-wave film, the production cost is reduced, and the cold-wave film has pearlescent color, so that the attractiveness of the cold-wave film is improved.

Claims

1. A pearlescent cold wave film is characterized in that: the coating process of the pearlescent layer comprises the steps of adopting a 200-mesh special oily electric carving roller, controlling the wet coating amount to be 6.0 +/-0.3 g per square meter, controlling the film shrinkage to be 0-4mm after coating and the vehicle speed to be 90 +/-10 m per min, using static copper wool yarns, placing a water-absorbing sponge at a winding and unwinding position, controlling the addition weight of the pearlescent slurry to be 15-25% of the weight of the coating of the pearlescent layer according to the difference of pearlescent effect, controlling the coating dry weight to be 1.80-2.20g per square meter, detecting the coating stripping force, controlling the average value to be 0.04-0.15N per mm, and rolling ribs.

2. The pearlescent cold wave film according to claim 1, wherein: and the release layer (2) adopts water and alcohol as solvents, and after mixing, the additives are added and stirred uniformly.

3. The manufacturing method of the pearlescent cold wave film is characterized by comprising the following steps:

2) coating a pearlescent layer on the release layer: 200-mesh special electric carving roller for oil, wherein the wet coating amount is 6.0 +/-0.3 g per square meter, the shrinkage of the coated film is controlled to be 0-4mm, the vehicle speed is 90 +/-10 m per min, electrostatic copper wool yarns are required, a water-absorbing sponge is placed at a winding and unwinding position, according to the difference of pearlescent effect, the addition weight of pearlescent slurry accounts for 15-25% of the weight of the pearlescent layer coating, the coating dry amount is controlled to be 1.80-2.20g per square meter, the coating stripping force is required to be detected, the average value is controlled to be 0.04-0.15N/mm, and no rib can be formed during rolling;

3) coating a protective layer on the pearlescent layer: after the pearl layer is coated, immediately coating a protective layer, controlling the dry weight to be 0.80-1.00 g/square meter, controlling the wet coating weight of a 250-mesh ceramic roller to be 5.0 +/-0.3 g/square meter, controlling the film shrinkage to be 0-1mm after coating, controlling the vehicle speed to be 100 +/-10 m/min, using electrostatic copper wool yarns, placing a water-absorbing sponge at a winding and unwinding position, and detecting the stripping force and the edge cutting property of the coating, wherein the average value of the stripping force is required to be 0.03-0.08N/mm;