CN216733703U - Digital relief heat transfer film - Google Patents
Digital relief heat transfer film Download PDFInfo
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- CN216733703U CN216733703U CN202123369954.4U CN202123369954U CN216733703U CN 216733703 U CN216733703 U CN 216733703U CN 202123369954 U CN202123369954 U CN 202123369954U CN 216733703 U CN216733703 U CN 216733703U
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Abstract
The utility model relates to a digital relief heat transfer film, belonging to the technical field of heat transfer films. The film comprises a substrate film layer, a release layer and a glue layer, wherein the lower surface of the release layer is provided with a positioning layer, and the lower surface of the positioning layer is provided with a digital relief layer; the digital relief layer comprises a plurality of digital ink-jet layers; the plurality of digital ink-jet layers are arranged in the vertical direction from top to bottom; an upper and lower full-covering structure or an upper and lower half-covering structure is arranged between the digital ink-jet layers of each upper layer and each lower layer. The digital relief heat transfer film is provided with the plurality of digital ink jet layers to form the digital relief layer, and the plurality of digital ink jet layers can generate a relief effect after being superposed, and can also enable the digital ink jet layer between the upper layer and the lower layer to be fully covered or half covered, and the relief effect is controlled through the ink jet position.
Description
Technical Field
The utility model relates to a digital relief heat transfer film, belonging to the technical field of heat transfer films.
Background
At present, with the popularization and application of the heat transfer printing technology in China, transparent materials can be decorated in a large scale. The thermal transfer printing decoration process is a process of transferring the decoration pattern on the thermal transfer printing to the surface of the decorated building material through one-time heating of the thermal transfer printing film to form a high-quality decoration film. In the process of thermal transfer printing, the protective layer and the pattern layer are separated from the polyester substrate by utilizing the combined action of heat and pressure, so that the whole decorative layer is permanently glued with the substrate. The heat transfer film is made of PET film as lining paper, printed with decorative layer, and coated with protective layer, base color layer, stripping layer and glue layer. The existing method is to coat a layer of transparent resin which forms a large adhesive force with the surface of the glass, heat and solidify the resin, and finally transfer the pictures and texts to the resin layer by a thermal transfer printing process.
A digital ink-jet heat transfer film belongs to one type of heat transfer films, the conventional digital ink-jet heat transfer film cannot achieve the effect of embossment, and multiple-pass superposition printing is needed in order to achieve the effect of superposition embossment, but after ink jet, ink drops are easy to be dyed faintly, the effect of superposition embossment for multiple times is still not good, and the ink mark edge is easy to be unclear.
For example, chinese patent with patent publication No. CN206170911U discloses a digital printing heat transfer film, which includes a printing surface material layer, a release layer, a wear-resistant protective layer, a digital adhesive layer, a digital printing coloring layer and a glue layer, wherein the release layer is disposed under the printing surface material layer, the wear-resistant protective layer is disposed under the release layer, the digital adhesive layer is disposed under the wear-resistant protective layer, the digital printing coloring layer is disposed under the digital adhesive layer, and the glue layer is disposed under the digital printing coloring layer; the wear-resistant protective layer is a wear-resistant protective layer with roughness.
Although the pattern of the heat transfer film with the structure in the patent is variable, the application product is relatively wide; but the thermal transfer printing process of the digital ink jet is adopted, compared with the traditional thermal transfer printing, the production capacity is smaller, the market price is higher, and the method is only suitable for producing small-batch individualized products; meanwhile, the digital ink-jet thermal transfer film of the patent still cannot achieve the effect of embossment.
For another example, chinese patent publication No. CN214355052U discloses a platinum relief heat transfer film. The platinum relief heat transfer film comprises: the coating layer is arranged on the substrate layer; the substrate layer, the release layer, the coating layer, the mould pressing layer, the aluminum plating layer, the printing layer and the adhesive layer have the following position relations: the substrate layer, the release layer, the coating layer, the mould pressing layer, the aluminum plating layer, the printing layer and the adhesive layer are sequentially arranged in a laminated manner from bottom to top; or the basal layer, the release layer, the printing layer, the coating layer, the mould pressing layer, the aluminum plating layer and the viscose layer are sequentially arranged in a laminated manner from top to bottom.
The platinum relief heat transfer film has a mould pressing layer, and a platinum relief technology is applied, so that the heat transfer film has a three-dimensional relief effect; but this again results in a relatively high cost.
Therefore, in order to solve the above background problems, there is a need to develop a digital relief heat transfer film.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solve the above problems, and an object of the present invention is to provide a digital relief thermal transfer film, which has a good relief effect, and can achieve the relief effect without using a mold pressing layer, thereby reducing the manufacturing cost.
The purpose of the utility model is realized as follows: a digital relief heat transfer film comprises a substrate film layer, a release layer and a glue layer;
the release layer is arranged on the lower surface of the substrate film layer, the release layer can prevent a formed composite material product from being adhered to a mold, and a type of isolation film is applied between the product and the mold, so that the product can be easily separated from the mold, and the surface quality of the product and the integrity of the mold are ensured;
the lower surface of the release layer is provided with a positioning layer, and the lower surface of the positioning layer is provided with a digital relief layer;
the positioning layer is a cursor positioning point structure printed by a concave roller and is arranged on the lower surface of the release layer;
the digital relief layer comprises a plurality of digital ink-jet layers; the plurality of digital ink-jet layers are arranged in the vertical direction from top to bottom; an upper and lower full-coverage structure or an upper and lower half-coverage structure is arranged between the digital ink-jet layers of each upper and lower layers; the relief effect can be controlled between the upper digital ink jet layer and the lower digital ink jet layer through the upper and lower full coverage structures or the upper and lower half coverage structures through the ink jet position or the ink droplet size;
the glue layer is arranged on the lower surface of the digital relief layer.
Preferably, the digital relief layer comprises a first digital ink-jet layer, a second digital ink-jet layer and a third digital ink-jet layer; the first digital ink-jet layer, the second digital ink-jet layer and the third digital ink-jet layer are sequentially arranged from top to bottom and are in a vertical direction superposition structure.
Preferably, the base material film layer is made of PET, and the PET is good in transparency, odorless, non-toxic, good in chemical stability and insoluble in common solvents at normal temperature.
Preferably, the glue layer utilizes hot melt glue and adopts gravure coating glue.
Compared with the prior art, the utility model has the following advantages:
the digital embossment heat-transfer film is provided with the plurality of digital ink-jet layers to form the digital embossment layer, and the plurality of digital ink-jet layers are overlapped up and down to generate the embossment effect;
the utility model relates to a digital relief heat transfer film, which enables a digital ink jet layer between an upper layer and a lower layer to be in a full-covering structure or a half-covering structure, and when the digital ink jet layer between the upper layer and the lower layer is in the half-covering structure, the relief effect is controlled by the ink jet position or the ink jet ink droplet size; when the digital ink-jet layers between the upper layer and the lower layer are all in a full-coverage structure, the relief effect is controlled through the superposition of ink-jet passes.
Drawings
Fig. 1 is a schematic overall structure diagram of a digital relief heat transfer film according to the present invention.
Fig. 2 is a schematic view of a digital relief layer structure of the digital relief heat transfer film of the present invention.
Fig. 3 is a schematic view of a side view effect of a digital relief layer of the digital relief heat transfer film of the present invention.
Wherein: 1. a substrate film layer; 2. a release layer; 3. a positioning layer; 4. a digital relief layer; 5. a glue layer;
4.1, a first digital ink-jet layer; 4.2, a second digital ink-jet layer; 4.3, and a third digital ink-jet layer.
Detailed Description
The utility model is described below with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1-2, the digital relief heat transfer film comprises a substrate thin film layer 1, a release layer 2 and a glue layer 5, wherein a positioning layer 3 is arranged on the lower surface of the release layer 2, and a digital relief layer 4 is arranged on the lower surface of the positioning layer 3; the digital relief layer 4 comprises a plurality of digital ink-jet layers which are arranged in the vertical direction from top to bottom; an upper and lower full-covering structure or an upper and lower half-covering structure is arranged between the digital ink-jet layers of each upper layer and each lower layer.
In this embodiment, the digital relief layer 4 includes a first digital ink-jet layer 4.1, a second digital ink-jet layer 4.2 and a third digital ink-jet layer 4.3; the first digital ink-jet layer 4.1, the second digital ink-jet layer 4.2 and the third digital ink-jet layer 4.3 are sequentially arranged from top to bottom and are in a vertical direction overlapping structure.
In this embodiment, the positioning layer 3 is a cursor positioning point structure printed by a gravure roll, and is arranged on the lower surface of the release layer; and by printing the cursor positioning point, the subsequent digital printing positioning is facilitated.
In this embodiment, the release layer 2 is disposed on the lower surface of the substrate thin film layer 1, and the glue layer 5 is disposed on the lower surface of the digital relief layer 4;
in the embodiment, the release layer 2 can prevent the formed composite material product from being adhered on the mold, and a type of isolation film is applied between the product and the mold, so that the product can be easily released from the mold, and the surface quality of the product and the integrity of the mold are ensured; the thickness of the release layer 2 is 2-5 μm, and the release layer 2 is coated by adopting gravure printing equipment.
As shown in fig. 3, the first digital ink-jet layer 4.1, the second digital ink-jet layer 4.2 and the third digital ink-jet layer 4.3 are stacked to form a complete digital relief layer 4, and the digital relief layer 4 forms an uneven relief effect according to the amount of digital ink-jet in different areas.
In this embodiment, the glue used in the glue layer 7 is hot melt glue.
In this embodiment, the material of the base film layer 1 is a PET film
In this embodiment, the process of the digital relief heat transfer film of the present invention includes:
the method comprises the following steps: selecting a base material film layer 1 as PET, coating a release layer 2 by gravure printing equipment, wherein the drying temperature is 80-100 ℃, the coating speed is 100-;
step two: printing the PET base film with the release layer 2 by a gravure roll to print a cursor positioning point, so that subsequent digital printing positioning is facilitated;
step three: forming a first digital ink jet layer 4.1 by a first digital ink jet, and directly irradiating by using an LED ultraviolet cold light source to semi-solidify the surface of an ink droplet;
step four: forming a second digital ink jet layer 4.2 by a second digital ink jet, and directly irradiating by adopting an LED ultraviolet cold light source to semi-solidify the surface of the ink droplet;
step five: forming a second digital ink jet layer 4.3 by third digital ink jet, and directly irradiating by using an LED ultraviolet cold light source to semi-solidify the surface of the ink droplet;
step six: fully curing the plurality of overlapped semi-cured digital relief layers 4 by using a UV mercury lamp, and cooling by using a water cooling roller in the curing process to prevent the PET base film from being heated and softened;
step seven: finally, coating a glue layer 7 at the drying temperature of 70-90 ℃ for 10-15m, and using hot melt adhesive to completely dry the printing layer in order to not damage the pictures and texts on the printing layer;
step eight: drying, rolling and cutting.
The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (4)
1. The utility model provides a digital relief (sculpture) heat-transfer die, includes substrate thin layer (1), leaves type layer (2) and glue layer (5), its characterized in that: a positioning layer (3) is arranged on the lower surface of the release layer (2), and a digital relief layer (4) is arranged on the lower surface of the positioning layer (3);
the digital relief layer (4) comprises a plurality of digital ink-jet layers;
the plurality of digital ink-jet layers are arranged in the vertical direction from top to bottom;
an upper and lower full-coverage structure or an upper and lower half-coverage structure is arranged between the digital ink-jet layers of each upper and lower layers.
2. The digital relief heat transfer film according to claim 1, wherein: the digital relief layer (4) comprises a first digital ink-jet layer (4.1), a second digital ink-jet layer (4.2) and a third digital ink-jet layer (4.3);
the first digital ink-jet layer (4.1), the second digital ink-jet layer (4.2) and the third digital ink-jet layer (4.3) are sequentially arranged from top to bottom and are in a vertical direction overlapping structure.
3. The digital relief heat transfer film according to claim 1, wherein: the positioning layer (3) is a cursor positioning point structure printed by a concave roller and is arranged on the lower surface of the release layer.
4. The digital relief heat transfer film according to claim 1, wherein: the release layer (2) is arranged on the lower surface of the substrate thin film layer (1), and the glue layer (5) is arranged on the lower surface of the digital relief layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123369954.4U CN216733703U (en) | 2021-12-30 | 2021-12-30 | Digital relief heat transfer film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123369954.4U CN216733703U (en) | 2021-12-30 | 2021-12-30 | Digital relief heat transfer film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216733703U true CN216733703U (en) | 2022-06-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123369954.4U Active CN216733703U (en) | 2021-12-30 | 2021-12-30 | Digital relief heat transfer film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216733703U (en) |
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2021
- 2021-12-30 CN CN202123369954.4U patent/CN216733703U/en active Active
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