CN219446592U

CN219446592U - Laminated composite laser transfer film

Info

Publication number: CN219446592U
Application number: CN202320116429.1U
Authority: CN
Inventors: 庄新烈; 庄正炎
Original assignee: WUXI KLASER TECHNOLOGY CO LTD
Current assignee: WUXI KLASER TECHNOLOGY CO LTD
Priority date: 2023-02-06
Filing date: 2023-02-06
Publication date: 2023-08-01
Anticipated expiration: 2033-02-06

Abstract

The utility model discloses a laminated composite laser transfer film, which comprises a PET (polyethylene terephthalate) base film layer, a PE laminated layer and an aluminized layer, wherein the PET base film layer is provided with an upper surface and a lower surface which are opposite, the PE laminated layer is provided with the upper surface and the lower surface which are opposite, the lower surface of the PE laminated layer is arranged on the upper surface of the PET base film layer, the PET base film layer is compounded with the PET base film layer to form a PET base film/fused PE double-layer structure, the PET base film layer is connected to the lower surface of the PE laminated layer in a tearable way, the aluminized layer is arranged on the upper surface of the PE laminated layer, the PE laminated layer is coated on the upper surface of the PET base film layer in an extrusion fusion way, and the aluminized layer is connected to the upper surface of the PE laminated layer in an adhesion way. Through the mode, the laminated composite laser transfer film can press deep patterns such as lenses, embossments and the like, is low in manufacturing cost, can be recycled repeatedly for multiple times, and greatly reduces material cost.

Description

Laminated composite laser transfer film

Technical Field

The utility model relates to the technical field of laser films, in particular to a laminated composite laser transfer film.

Background

The laser paper is an important product in the paper box packaging industry, and the surface of the laser paper is provided with laser patterns, so that special visual effects can be presented, and the laser paper is properly matched with the printed patterns, so that the packaging is more attractive to consumers, the product characteristics are highlighted, and the purchasing desire of the consumers is promoted.

The laser paper is formed by combining a laser pattern with a paper using a laser composite film or a laser transfer film. The laser composite film is formed by coating a layer of liquid UV glue on a PET base film in a UV mould pressing mode, rolling the PET base film by a steel roller with a laser pattern on the surface, and simultaneously solidifying the PET base film by irradiation of a UV lamp, so that the laser pattern on the surface of the steel roller can be copied to a solidified UV glue layer; then, an aluminum layer is deposited on the UV glue layer by vapor deposition to be used as a reflection layer of light, so that the laser pattern can be displayed. Thus, the laser composite film with the three-layer structure of the PET base film, the UV adhesive layer and the aluminized layer is completed.

The laser composite film is used in such a way that after glue is coated on the surface of the aluminized layer, the laser pattern is attached to the paper, so that the laser pattern reflects light through the aluminized layer, and the surface of the paper presents special visual effects such as colorful, lenses, embossments and the like.

The laser transfer film is to coat a layer of liquid paint on the PET base film, then to form a layer of solid coating after drying and solidifying by an oven, then to roll the solid coating by a steel roller with laser patterns on the surface, so that the laser patterns on the surface of the steel roller can be copied to the solid coating, and then to vapor coat an aluminum layer on the surface of the solid coating as a reflecting layer of light, so that the laser patterns can be displayed. Thus, a three-layer structure having a PET base film, a solid-state coating layer, and an aluminum plating layer was completed, but unlike the laser composite film, only slight adhesion was maintained between the solid-state coating layer and the PET base film.

The laser transfer film is used in such a way that the surface of the aluminized layer is coated with glue and then is adhered to paper, the PET base film is torn off, the aluminized layer and the solid coating are left on the surface of the paper, and the laser pattern is transferred from the PET base film to the paper along with the solid coating, so that the laser transfer film is called as a laser transfer film. The torn PET base film can be recycled, but some transferred flaws remain on the surface, so the PET base film can only be used as a lower end and has low requirements on the surface quality of the PET film.

In brief, the laser composite film is a PET base film and a UV adhesive layer, and an aluminized layer is composited on paper together and remains on the paper all the time; the laser transfer film is a PET base film and a solid coating, the aluminized layer is compounded on paper together, but the PET base film is torn off.

Both the laser composite film and the laser transfer film can make laser patterns on paper, but both have advantages. The UV molding mode of the laser composite film can copy the laser pattern almost perfectly, and the deep-grain pattern such as lens and embossment can be copied, but the manufacturing cost is high because of the high price of the UV glue. The laser transfer film has low manufacturing cost, and the PET film can be recycled for other purposes after being torn off, so that the cost can be further reduced, but only shallow pattern can be copied, and the copying effect on deep pattern is not as good as that of a UV (ultraviolet) mould pressing mode.

Disclosure of Invention

The utility model mainly solves the technical problems of providing a laminated composite laser transfer film manufactured by a laminated process, which can press deep-grain patterns such as lenses, embossments and the like, has low manufacturing cost, can recycle a base film layer repeatedly for multiple times, and greatly reduces the material cost.

In order to solve the technical problems, the utility model adopts a technical scheme that: provided is a laminated composite laser transfer film, comprising:

the PET base film layer is provided with an upper surface and a lower surface which are opposite;

the PE coating layer is provided with an upper surface and a lower surface which are opposite, and the lower surface of the PE coating layer is arranged on the upper surface of the PET base film layer and is compounded with the PET base film layer to form a PET base film/molten PE double-layer structure;

the aluminized layer is arranged on the upper surface of the PE laminated layer;

the PE coating layer is coated on the upper surface of the PET base film layer in an extrusion melting mode, and the aluminized layer is connected on the upper surface of the PE coating layer in an adhesion mode.

In a preferred embodiment of the present utility model, the thickness of the PET base film layer is 10-15 μm, the thickness of the PE coating film layer is 6-10 μm, and the thickness of the aluminized layer is 0.05-0.08 μm.

In a preferred embodiment of the present utility model, the PET base film/molten PE double layer structure is formed by a cooling roll set including a rubber roll and a steel roll in an extrusion cooling manner.

In a preferred embodiment of the present utility model, the lower surface of the PET base film layer faces the glue roller, and the upper surface of the PE coating layer faces the steel roller and is extruded by the steel roller to form a laser pattern.

In a preferred embodiment of the present utility model, the PET base film layer is detachably connected to the lower surface of the PE coating film layer.

In a preferred embodiment of the present utility model, the aluminum-plated paper further comprises a paper layer, wherein the upper surface of the aluminum-plated layer is provided with a glue coating layer, and the paper layer is attached to the upper surface of the aluminum-plated layer through the glue coating layer.

The beneficial effects of the utility model are as follows: the laminated composite laser transfer film can press out deep patterns such as lenses, embossments and the like, has low manufacturing cost, can recycle and reuse a base film layer for multiple times, and greatly reduces the material cost.

Drawings

For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

FIG. 1 is a schematic diagram of a preferred embodiment of a laminated composite laser transfer film according to the present utility model;

FIG. 2 is a schematic diagram of a preferred embodiment of a transfer of a coated composite laser transfer film to paper according to the present utility model;

FIG. 3 is a schematic view of a composite structure of a PET base film layer and PE coating film layer according to a preferred embodiment of the utility model;

the components in the drawings are marked as follows: 100. PET base film layer, 200, PE laminated film layer, 300, aluminized layer, 400, laser pattern, 500, glue layer, 600, paper layer, 700, glue roller, 800 and steel roller.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, the azimuth or positional relationship indicated by the terms "front", "rear", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore, should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.

The present utility model provides a preferred embodiment of a laminated composite laser transfer film.

As shown in fig. 1 and 2, the laminated composite laser transfer film comprises a PET base film layer 100, a PE laminated layer 200 and an aluminized layer 300, the PET base film layer 100 has opposite upper and lower surfaces, the PE laminated layer 200 has opposite upper and lower surfaces,

the lower surface of the PE coating layer 200 is arranged on the upper surface of the PET base film layer 100, and is compounded with the PET base film layer 100 to form a PET base film/molten PE double-layer structure, the PET base film layer 100 is connected on the lower surface of the PE coating layer 200 in a tearable mode, and the aluminum plating layer 300 is arranged on the upper surface of the PE coating layer 200.

In this embodiment, preferably, the PE coating layer 200 is coated on the upper surface of the PET base film layer 100 in an extrusion melting manner, and the aluminized layer 300 is connected to the upper surface of the PE coating layer 200 in an adhesion manner.

Specifically, the PE plastic is melted and coated on the PET base film 100 mainly by means of extrusion film coating, so as to form a PET base film/melted PE double-layer structure, and the double-layer structure is extruded and cooled by a pair of cooling roller sets.

Further, as shown in fig. 3, the cooling roller set includes a rubber roller 700 and a steel roller 800, the lower surface of the PET-based film layer 100 faces the rubber roller 700, and the upper surface of the PE-coated film layer 200 faces the steel roller 800. Namely, the rubber roll 700 contacts with the lower surface of the PET base film layer 100, the steel roll 800 contacts with the upper surface of the melting PE film layer 200, the surface of the steel roll 800 is provided with a prefabricated laser pattern, the laser pattern on the surface of the steel roll is re-carved on the upper surface of the PE film layer 200 by extrusion, meanwhile, the PE film layer 200 is cooled, solidified and shaped, thus the PET base film/melting PE double-layer structure can be obtained, and the upper surface of the PE film layer 200 is provided with the laser pattern 400.

Then aluminizing the PE coating layer 200 to form a reflecting layer, the laser pattern can be displayed, and the PE is in a molten state when the steel roller 800 extrudes, so that the laser pattern can be ensured to obtain a copy effect similar to that of UV mould pressing.

In addition, since the PET base film and PE are completely different polymer materials, the PET base film and PE have slight adhesiveness and can be easily peeled off, so that the same transfer mode as the traditional laser transfer film can be used, the aluminum plating layer 300 is coated with the glue layer 500 and then is adhered to the paper layer 600, the PET base film layer 100 is torn off, the PE coating layer 200 and the aluminum plating layer 300 are left to be made into laser paper on the surface of the paper layer 600, and the torn PET base film layer 100 can be repeatedly used after being rolled.

In this embodiment, the thickness of the PET base film layer 100 is preferably 10-15 μm, the thickness of the PE laminated film layer 200 is preferably 6-10 μm, and the thickness of the aluminized layer 300 is preferably 0.05-0.08 μm.

In summary, the utility model aims at the defects of the existing laser composite film and laser transfer film, and the film-coated composite laser transfer film is manufactured in a film-coated mode, so that shallow-grain laser patterns can be copied, deep-grain embossments and lens patterns can be copied, the effect is comparable to the UV mould pressing mode of the laser composite film, the manufacturing cost and the material cost are comparable to the traditional coating-rolling mode of the laser transfer film, and the transferred PET base film can not remain flaws and can be recycled for multiple times.

The laminated composite laser transfer film has the beneficial effects that:

can press out deep patterns such as lenses, embossments and the like, has low manufacturing cost, can recycle the base film layer repeatedly for multiple times, and greatly reduces the material cost.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present utility model.

Claims

1. A laminated composite laser transfer film, comprising:

2. The laminated composite laser transfer film according to claim 1, wherein the thickness of the PET base film layer is 10-15 μm, the thickness of the PE laminated layer is 6-10 μm, and the thickness of the aluminized layer is 0.05-0.08 μm.

3. The laminated composite laser transfer film of claim 1, wherein the PET base film/molten PE bilayer structure is formed by extrusion cooling with a chill roll set comprising a rubber roll and a steel roll.

4. The laminated composite laser transfer film of claim 3, wherein the lower surface of the PET base film layer faces the glue roll and the upper surface of the PE laminated layer faces the steel roll and is extruded by the steel roll to form a laser pattern.

5. The laminated composite laser transfer film of claim 1, wherein the PET base film layer is removably attached to the lower surface of the PE laminated layer.

6. The laminated composite laser transfer film of claim 1, further comprising a paper layer, wherein the upper surface of the aluminized layer is provided with a glue coating layer, and the paper layer is attached to the upper surface of the aluminized layer through the glue coating layer.