CN220520970U - Transfer base film paper and preparation system thereof, packaging film and preparation system thereof - Google Patents

Abstract

The utility model provides transfer base film paper and a preparation system thereof, a packaging film and a preparation system thereof, and belongs to the technical field of packaging materials. The transfer base film paper comprises laminated coated paper and a transfer base film layer; the transfer base film layer is internally provided with optical positioning information; the optical positioning information is positioned on one side of the transfer base film layer far away from the laminating paper. The utility model has the advantages that the transfer base film paper and the packaging film have good positioning effect by the design of the transfer base film layer with the optical positioning information, the structure of the packaging film is further simplified, and the industrial production of the packaging film is facilitated.

Description

Transfer base film paper and preparation system thereof, packaging film and preparation system thereof

Technical Field

The utility model belongs to the technical field of packaging materials, and particularly relates to transfer base film paper and a preparation system thereof, a packaging film and a preparation system thereof.

Background

Along with the increasing of the physical living standard of people, the requirements of people on the decoration of the package are also higher, and the packaging film with higher anti-counterfeiting force and good packaging effect is widely applied to the field of commodity anti-counterfeiting packaging.

CN110920206a discloses a solvent-free composite positioning anti-counterfeiting transfer paper and a preparation method thereof, wherein the method comprises the following steps: coating a solvent-free adhesive after stretching the PET positioning transfer film at a fixed length to obtain a transfer film with an adhesive layer on the surface; coating thermochromic ink or optical color-changing ink on the surface of the white cardboard, and drying to obtain the white cardboard with an anti-counterfeiting layer on the surface; laminating the transfer film on the white cardboard, enabling an adhesive layer of the transfer film to be in direct contact with an anti-counterfeiting layer of the white cardboard, and carrying out composite treatment on the laminated transfer film and white cardboard to obtain composite paper; and (3) peeling the PET base film on the composite paper after curing the composite paper to obtain the solvent-free composite positioning anti-counterfeiting transfer paper.

CN101407264a discloses a method for manufacturing a positioning laser anti-counterfeiting composite film; the composite film is provided with a printing layer, a printing area and an adhesive area are arranged on the printing layer, an ink layer is printed on the printing area, a first adhesive layer is coated on the adhesive area, and a laser anti-counterfeiting pattern layer is adhered on the first adhesive layer; and a second adhesive layer and a protective layer are arranged on the ink layer and the laser anti-counterfeiting pattern layer.

In the prior art, the provided composite film with the positioning effect has the defects of complex structure and poor positioning precision. Therefore, how to provide a transfer base film paper and a packaging film with simple structure and good positioning effect has become a technical problem to be solved at present.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model aims to provide a transfer base film paper and a preparation system thereof, a packaging film and a preparation system thereof. According to the utility model, the structure of the transfer base film layer is designed, so that the transfer base film paper and the packaging film have a good positioning effect, the structures of the transfer base film paper and the packaging film are further simplified, and the industrial production is facilitated.

To achieve the purpose, the utility model adopts the following technical scheme:

in a first aspect, the present utility model provides a transfer base film paper, the transfer base film paper including a laminated film paper and a transfer base film layer;

the transfer base film layer is internally provided with optical positioning information;

the optical positioning information is positioned on one side of the transfer base film layer far away from the laminating paper.

The optical positioning information can comprise optical positioning patterns corresponding to the graphic design information of the product and/or text information for optical positioning, etc.

According to the utility model, the optical positioning information is arranged in the transfer base film layer, so that the transfer base film paper with a simple structure and a positioning effect is obtained.

The following is a preferred technical scheme of the present utility model, but not a limitation of the technical scheme provided by the present utility model, and the following preferred technical scheme can better achieve and achieve the objects and advantages of the present utility model.

As a preferred technical scheme of the utility model, the optical positioning information comprises an optical microstructure and/or a positioning cursor;

and/or, the transfer base film layer is obtained by adopting an extrusion method.

As a preferable technical scheme of the utility model, the optical microstructure comprises at least one of cat eye, embossment, plain hologram, column grating and metal wiredrawing stripe;

and/or, the positioning cursor is arranged around the optical microstructure.

In the utility model, the transfer paper has anti-counterfeiting effect due to the arrangement of the optical microstructure. In the present utility model, positioning the cursor includes, but is not limited to, at least one of a cross cursor, a circular mark, a triangular mark, a square mark, and the like. Compared with square marks and circular marks, the triangular marks have gradients, and can be both transversely and longitudinally taken into consideration during the alignment, and compared with the square marks and the circular marks, the alignment deviation can be seen more and information can be fed back to the system in time to make correction. It will be appreciated that a person skilled in the art may also choose a shape of the mark other than a triangular mark, such as a square mark, a circular mark, etc., or a combination of shapes, depending on the actual situation. The cross cursor is used for printing registration to ensure the quality of the printed layer.

In the utility model, the positioning cursors are arranged around the optical microstructure, so that the positioning effect of the transfer base film paper can be further improved.

As a preferable technical scheme of the utility model, the film-coated paper comprises a first film, a base paper and a second film which are sequentially laminated, wherein the second film is closer to the transfer base film layer than the first film.

As a preferable technical scheme of the utility model, the base paper is selected from any one of coated paper, kraft paper, white cardboard and gray cardboard, and is more preferably coated paper.

And/or the gram weight of the base paper is 100-300 g/m ² For example, it may be 100 g/m ² 、120 g/m ² 、140 g/m ² 、160 g/m ² 、180 g/m ² 、200 g/m ² 、220 g/m ² 、240 g/m ² 、260 g/m ² 、280 g/m ² Or 300 g/m ² Etc.

And/or the first covering film is selected from any one of PET film, PVC film, BOPP film, PP film or PET release film.

And/or the thickness of the first coating film is 12-50 μm, for example, 12 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm or 50 μm.

And/or the second covering film is selected from any one of PET film, PVC film, BOPP film, PP film or PET release film.

And/or the thickness of the second coating film is 12-50 μm, for example, 12 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm or 50 μm.

As a preferable technical scheme of the utility model, the transfer base film layer is selected from any one of a PET film layer, a PE film layer, a PVC film layer, a BOPP film layer or a PP film layer.

And/or the extrusion amount of the transfer base film layer is 15-20 g/m ² For example, 15 g/m ² 、15.5 g/m ² 、16 g/m ² 、16.5 g/m ² 、17 g/m ² 、17.5 g/m ² 、18 g/m ² 、18.5 g/m ² 、19 g/m ² 、19.5 g/m ² Or 20 g/m ² Etc.

According to the utility model, the extrusion amount of the transfer base film layer is controlled within a specific range, and the thickness of the transfer base film layer is controlled within a specific range, so that the optical positioning information can be completely arranged on the transfer base film layer, and the transfer base film layer with the optical positioning information is obtained, thereby obtaining the transfer base film paper with high precision and good visual effect. If the extrusion amount of the transfer base film layer is too low, the thickness of the transfer base film layer is too thin, and when optical positioning information is prepared on the transfer base film layer, the visual effect of the prepared optical pattern is poor; if the extrusion amount of the transfer base film layer is too high, the thickness of the transfer base film layer is too thick, so that on one hand, the positioning effect of the transfer base film paper is poor, the precision is low, and on the other hand, the waste of raw materials is caused, and the production cost of the transfer base film paper is increased.

In a second aspect, the present utility model provides a packaging film comprising a printed layer, a transfer base film layer, a reflective layer, an adhesive layer and a substrate layer as described in the first aspect, which are laminated in this order.

As a preferred embodiment of the present utility model, the packaging film further includes a protective layer, the protective layer being located between the printing layer and the transfer base film layer.

And/or the dry coating weight of the protective layer is 3-8 g/m ² For example, it may be 3 g/m ² 、3.5 g/m ² 、4 g/m ² 、4.5 g/m ² 、5 g/m ² 、5.5 g/m ² 、6 g/m ² 、6.5 g/m ² 、7 g/m ² 、7.5 g/m ² Or 8g/m ² Etc.

In the utility model, the thickness of the protective layer can be controlled within a specific range by controlling the dry coating amount of the protective layer within the specific range, thereby further improving the precision of the packaging film.

As a preferable technical scheme of the utility model, the reflecting layer is selected from any one of an aluminized layer, a zinc sulfide plated layer or a titanium dioxide plated layer.

And/or the thickness of the reflective layer is 0.03-0.04 μm, which may be, for example, 0.03 μm, 0.031 μm, 0.032 μm, 0.033 μm, 0.034 μm, 0.035 μm, 0.036 μm, 0.037 μm, 0.038 μm, 0.039 μm or 0.04 μm.

As a preferable technical scheme of the utility model, the dry coating weight of the adhesive layer is 4-8 g/m ² For example, it may be 4 g/m ² 、4.5 g/m ² 、5 g/m ² 、5.5 g/m ² 、6 g/m ² 、6.5 g/m ² 、7 g/m ² 、7.5 g/m ² Or 8g/m ² Etc.

As a preferable technical scheme of the utility model, the substrate layer is selected from any one of kraft paper, coated paper, white cardboard, gray cardboard and plastic film.

In the present utility model, there is no particular limitation on the raw materials for preparing the adhesive layer, and the adhesive commonly used in the art is suitable, and the varnish exemplarily includes, but is not limited to: any one of a VAE emulsion binder, a vinyl acetate binder and an aqueous acrylate binder. The binder of the present utility model is further preferably an aqueous acrylate binder.

And/or the gram weight of the substrate layer is 60-400 g/m ² For example, 60 g/m ² 、100 g/m ² 、150 g/m ² 、200 g/m ² 、250 g/m ² 、300 g/m ² 、350 g/m ² Or 400 g/m ² Etc.

In a third aspect, the present utility model provides a system for preparing a transfer base film sheet according to the first aspect, comprising a transfer unit and an extrusion unit connected.

In the present utility model, the transfer base film layer is prepared on the coated paper by conveying the coated paper through a conveying unit and preparing the coated paper through an extruding unit (such as an extruder).

In the present utility model, the method of preparing the transfer base film paper illustratively includes:

conveying the coated paper for an extrusion unit through a transmission unit, placing the preparation raw materials of the transfer base film layer in an extruder in the extrusion unit, carrying out melt extrusion and carrying out lamination by using the coated paper, and then pressing the coated paper with a hot pressing roller provided with an optical positioning information template, and cooling the coated paper by using a cooling roller to obtain the transfer base film layer with optical positioning information;

wherein, the side of the transfer base film layer with the optical positioning information is far away from the coated paper.

In a fourth aspect, the present utility model provides a system for preparing a packaging film according to the second aspect, the system comprising a conveying unit, an extrusion unit, a coating unit, a compounding unit, a peeling unit and a printing unit connected in this order.

As a preferred embodiment of the present utility model, the system for preparing a packaging film further includes a coating unit located between the peeling unit and the printing unit;

or, the preparation system of the packaging film further comprises a corona unit and a coating unit, wherein the corona unit and the coating unit are sequentially arranged between the stripping unit and the printing unit.

In the utility model, the coated paper is conveyed by a conveying unit, a transfer base film layer is prepared on the coated paper by an extruding unit (such as an extruder for realizing extrusion and mould pressing), then a reflecting layer is prepared on one side of the transfer base film layer by a coating unit (such as a coating machine), then a substrate layer provided with an adhesive layer is compounded with the reflecting layer by a compounding unit (such as a compounding machine) (and/or the adhesive layer is arranged on the reflecting layer, the substrate layer is compounded with the reflecting layer by the adhesive layer), then the coated paper is removed by a stripping unit (stripper), corona treatment is carried out on the transfer base film layer on one side far from the reflecting layer by a corona unit (such as a corona machine), varnish is coated on one side of the transfer base film layer after corona treatment by a coating unit (such as a coating machine), and a printing layer is arranged on one side of the protective layer far from the transfer base film layer by a printing unit (printing machine).

In the present utility model, the method of preparing the packaging film illustratively includes:

(1) Conveying the coated paper for an extrusion unit through a transmission unit, placing the preparation raw materials of the transfer base film layer in an extruder in the extrusion unit, carrying out melt extrusion and carrying out lamination by using the coated paper, and then pressing the coated paper with a hot pressing roller provided with an optical positioning information template, and cooling the coated paper by using a cooling roller to obtain the transfer base film layer with optical positioning information;

wherein, one side of the transfer base film layer with the optical positioning information is far away from the film-coated paper;

(2) Coating a film on one side of the transfer base film layer with the optical positioning information through a film coating unit to obtain a reflecting layer;

(3) Coating adhesive on one side of the substrate layer by using a 200-250 mesh anilox roller at the speed of 80-100 m/min, compounding the adhesive with one side of the reflecting layer far away from the transfer substrate layer by using a compounding unit, and drying at 60-80 ℃ to obtain a product A;

or, coating adhesive on one side of the reflecting layer far away from the transfer base film layer by using a 200-250 mesh anilox roller, wherein the coating speed is 80-100 m/min, compounding the adhesive with any side of the base material layer by using a compounding unit, and then drying at 60-80 ℃ to obtain a product A;

(4) Removing the coated paper in the product A, carrying out corona treatment (setting the dyne value in the corona treatment process to be 38-50 dyne) on the side, far away from the reflecting layer, of the transfer base film layer by using a corona unit, then coating varnish on the side, far away from the reflecting layer, of the transfer base film layer by using a 200-250 mesh anilox roller by using a coating unit at the speed of 80-100 m/min, then drying at the temperature of 65-80 ℃, and forming a protective layer on the side, far away from the reflecting layer, of the transfer base film layer to obtain a product B;

(5) And setting a printing layer on one side of the protective layer far away from the transfer base film layer through a printing unit to obtain the packaging film.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the structure of the transfer base film paper is designed, the thickness of the transfer base film layer is controlled within a specific range by further designing the transfer base film layer with optical positioning information, so that the transfer base film paper and the packaging film with high precision and good positioning effect are prepared, the structures of the transfer base film paper and the packaging film are further simplified, and the industrial production is facilitated.

Drawings

Fig. 1 is a schematic structural view of a transfer base film paper provided in embodiment 1 of the present utility model;

FIG. 2 is a schematic top view of a transfer substrate film layer according to embodiment 1 of the present utility model;

FIG. 3 is a schematic view of the packaging film according to application example 1 of the present utility model;

the optical film comprises 1-laminating paper, 2-transfer base film layer, 21-optical microstructure, 22-positioning cursor, 3-reflecting layer, 4-bonding layer, 5-substrate layer, 6-printing layer and 7-protective layer.

Detailed Description

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings. It will be apparent to those skilled in the art that the examples are merely to aid in understanding the utility model and are not to be construed as a specific limitation thereof.

The sources of some of the raw materials in the following examples are as follows:

aqueous polyurethane varnish: WY-0111B;

aqueous acrylate binder: SZ8016;

PP particles: chinese petrifaction;

PET particles: chinese petrochemical industry.

Example 1

The embodiment provides a transfer base film paper, the structural schematic diagram of which is shown in fig. 1, wherein the transfer base film paper comprises a film-coated paper 1 and a transfer base film layer 2;

the coated paper 1 is formed by coating two sides of base paper, the base paper is coated paper, and the gram weight is 200 g/m ² The method comprises the steps of carrying out a first treatment on the surface of the The film is PET film with thickness of 20 μm;

the transfer base film layer 2 is a PP film, and the extrusion amount of the PP film is 18 g/m ² The optical microstructure 21 and the positioning cursor 22 (cross cursor) are arranged in the transfer base film layer 2, the optical microstructure 21 is a cat eye, the positioning cursor 22 is arranged around the cat eye, and a schematic diagram of a top view structure of the transfer base film layer is shown in fig. 2.

The preparation method of the transfer base film paper comprises the following steps:

placing PP particles in an extruder, carrying out melt extrusion, carrying out hot-pressing with a laminating paper 1, and then cooling with a hot-pressing roller provided with an optical microstructure 21 and a positioning cursor 22 template by using a cooling roller to form a transfer base film layer 2 with optical positioning information, thereby obtaining the transfer base film paper;

wherein the side of the transfer base film layer 2 having the optical positioning information (optical microstructure 21 and positioning cursor 22) is away from the coated paper 1.

Example 2

The embodiment provides a transfer base film paper, which comprises a film-coated paper and a transfer base film layer;

the coated paper is composed of a base paper double-sided coating, the base paper is coated paper, and the gram weight is 300 g/m ² The method comprises the steps of carrying out a first treatment on the surface of the The film is PET film with thickness of 40 μm;

the transfer base film layer is PET film, and the extrusion amount is 16 g/m ² The optical microstructure and the positioning cursor are arranged in the transfer base film layer, the optical microstructure is a metal wire drawing stripe, and the positioning cursor is arranged around the metal wire drawing stripe.

The preparation method of the transfer base film paper comprises the following steps:

placing PET particles in an extruder, carrying out melt extrusion, carrying out lamination by using coated paper, pressing the lamination paper with a hot pressing roller provided with an optical microstructure and a positioning cursor template, and cooling the lamination paper by using a cooling roller to form a transfer base film layer with optical positioning information, thereby obtaining the transfer base film paper;

wherein, one side of the transfer base film layer with optical positioning information (optical microstructure and positioning cursor) is far away from the coated paper.

Example 3

This example provides a transfer base film paper differing from example 1 only in that: the extrusion amount of the transfer base film layer is 15 g/m ² The method comprises the steps of carrying out a first treatment on the surface of the Other conditions were the same as in example 1.

Example 4

This example provides a transfer base film paper differing from example 1 only in that: the extrusion amount of the transfer base film layer is 20 g/m ² The method comprises the steps of carrying out a first treatment on the surface of the Other conditions were the same as in example 1.

Example 5

This example provides a transfer base film paper differing from example 1 only in that: the extrusion amount of the transfer base film layer is 12 g/m ² The method comprises the steps of carrying out a first treatment on the surface of the Other conditions were the same as in example 1.

Example 6

This example provides a transfer base film paper differing from example 1 only in that: the extrusion amount of the transfer base film layer is 23 g/m ² The method comprises the steps of carrying out a first treatment on the surface of the Other conditions were the same as in example 1.

Example 7

This example provides a transfer base film paper differing from example 1 only in that: the positioning cursor was not provided in the transfer base film layer, and the other conditions were the same as in example 1.

Application example 1

The application example provides a packaging film, the structure of which is shown in fig. 3, wherein the packaging film comprises a printing layer 6, a protective layer 7, a transfer base film layer 2, a reflecting layer 3, an adhesive layer 4 and a base material layer 5 which are sequentially laminated;

wherein the protective layer 7 is prepared from aqueous polyurethane varnish (WY-0111B) and has a dry coating weight of 5g/m ² ；

The reflecting layer 3 is an aluminized layer with the thickness of 0.04 mu m;

the adhesive layer 4 is prepared from an aqueous acrylic adhesive, and the dry coating weight is 6 g/m ² ；

The material white cardboard of the substrate layer 5 has a thickness of 200 g/m ² ；

The printing layer 6 is prepared from ink (Hang Hua VP sky blue) with ink consumption of 5g/m ² 。

The preparation method of the packaging film comprises the following steps:

(1) Placing PP particles in an extruder, carrying out melt extrusion, carrying out lamination by using coated paper 1, and then pressing with a hot press roller provided with a template of optical positioning information (optical microstructure 21 and positioning cursor 22), and cooling by using a cooling roller to form a transfer base film layer 2 with the optical positioning information;

wherein the side of the transfer base film layer 2 having the optical positioning information (optical microstructure 21 and positioning cursor 22) is away from the coated paper 1;

the film-coated paper 1 is composed of a base paper double-sided film, the base paper is coated paper, and the gram weight is 200 g/m ² The method comprises the steps of carrying out a first treatment on the surface of the The film is PET film with thickness of 20 μm;

(2) Coating a film on one side of the transfer base film layer 2 with optical positioning information to obtain a reflecting layer 3;

(3) Coating a water-based acrylate adhesive on one side of a substrate layer 4 by using a 230-mesh anilox roller at a coating speed of 100 m/min, compositing the water-based acrylate adhesive with one side of a reflecting layer 3 far away from a transfer substrate film layer 2, and drying at 70 ℃ to obtain a product A;

(4) Removing the coated paper 1 in the product A, setting the dyne value to be 45 dyne, carrying out corona treatment on the side, far away from the reflecting layer 3, of the transfer base film layer 2, coating aqueous polyurethane varnish on the side, far away from the reflecting layer 3, of the transfer base film layer 2 by using a 300-mesh anilox roller at a coating speed of 100 m/min, drying at 75 ℃, and forming a protective layer 7 on the side, far away from the reflecting layer 3, of the transfer base film layer 2 to obtain a product B;

(5) The packaging film is obtained by providing a printed layer 6 on the side of the protective layer 7 remote from the transfer base film layer 2.

Application example 2

The present application example provides a packaging film differing from application example 1 only in that: the transfer base film layer provided in example 1 was replaced with the transfer base film layer provided in example 2, and the other conditions were the same as in application example 1.

Application example 3

The present application example provides a packaging film differing from application example 1 only in that: the transfer base film layer provided in example 1 was replaced with the transfer base film layer provided in example 3, and the other conditions were the same as in application example 1.

Application example 4

The present application example provides a packaging film differing from application example 1 only in that: the transfer base film layer provided in example 1 was replaced with the transfer base film layer provided in example 4, and the other conditions were the same as in application example 1.

Application example 5

The present application example provides a packaging film differing from application example 1 only in that: the transfer base film layer provided in example 1 was replaced with the transfer base film layer provided in example 5, and the other conditions were the same as in application example 1.

Application example 6

The present application example provides a packaging film differing from application example 1 only in that: the transfer base film layer provided in example 1 was replaced with the transfer base film layer provided in example 6, and the other conditions were the same as in application example 1.

Application example 7

The present application example provides a packaging film differing from application example 1 only in that: the dry coating weight of the adhesive layer is 4 g/m ² Other conditions were the same as in application example 1.

Application example 8

The present application example provides a packaging film differing from application example 1 only in that: the dry coating weight of the adhesive layer is 8g/m ² Other conditions were the same as in application example 1.

Application example 9

The present application example provides a packaging film differing from application example 1 only in that: the dry coating weight of the adhesive layer is 2 g/m ² Other conditions were the same as in application example 1.

Application example 10

The present application example provides a packaging film differing from application example 1 only in that: the dry coating weight of the adhesive layer is 10 g/m ² Other conditions were the same as in application example 1.

Application example 11

The present application example provides a transfer base film paper, which differs from application example 1 only in that: the transfer film layer provided in example 1 was replaced with the transfer film layer provided in example 7, except that the conditions were the same as in example 1.

Comparative application example 1

The comparative application example provides a packaging film, which comprises a printing layer, a protective layer, an ultraviolet light transfer layer, an aluminum layer, an adhesive layer and paper;

the print layer was the same as in application example 1.

The preparation method of the packaging film comprises the following steps:

(1) The protective layer, the ultraviolet light transfer layer, the aluminum layer, the adhesive layer and the paper were prepared by the preparation method described in the example 1 of CN 107780296A;

(2) And arranging a printing layer on one side of the protective layer far away from the adhesive layer to obtain the packaging film.

The performance of the packaging films provided in the above application examples and comparative examples was tested by the following specific test methods:

film precision and distortion testing: using a ten-fold LED magnifying glass with a film plate as a reference, observing the distance between a film positioning cursor and a positioning cursor in a transfer base film layer, wherein the precision is the range between a minimum distance value and a maximum distance value, and recording whether distortion exists or not;

if the precision is less than or equal to 0.1mm, no distortion exists; if the accuracy is more than 0.1mm and less than or equal to 0.5 and mm, the distortion is not obvious; if 0.5 mm < precision is less than or equal to 1.2 mm, distortion exists; if the accuracy is > 1.2 mm, the distortion is significant.

PS version accuracy and distortion test: offset printing is carried out by using a PS plate upper machine, a ten-fold LED magnifying glass is used for observing and measuring the gap between a positioning cursor of the graph and text after offset printing and each positioning cursor of a transfer base film layer, the precision is the range between the minimum value and the maximum value of the gap, and whether distortion exists or not is recorded;

if the precision is less than or equal to 0.1 and mm, no distortion exists; if the precision is more than 0.1 and less than or equal to 0.5 and less than mm, the distortion is not obvious; if 0.5 mm < precision is less than or equal to 1.2 mm, distortion exists; if the accuracy is > 1.2 mm, the distortion is significant.

And (3) testing the fastness of the normal-temperature bonding layer: the packaging films provided in the application examples and the comparative application examples are respectively cut into test samples with the length of 20 cm and the width of 2 cm, a base material layer in the test samples is peeled off by using a servo tension material tester at 25 ℃ to separate the base material layer from the adhesive layer, and when the peeling is recorded for 10 cm, the readings of the servo tension material tester are the fastness of the adhesive layer and the base material layer.

High temperature tie layer fastness testing: cutting the packaging films provided by the application examples and the comparative application examples into test samples with the length of 20 cm and the width of 2 cm respectively, placing the test samples at 60 ℃ for 48 h, peeling the substrate layer in the test samples by using a servo tension material tester to separate the substrate layer from the adhesive layer, and recording the readings of the servo tension material tester when peeling 10 cm, namely the fastness of the adhesive layer and the substrate layer;

low temperature tie layer fastness testing: cutting the packaging films provided by the application examples and the comparative application examples into test samples with the length of 20 cm and the width of 2 cm respectively, placing the test samples at the temperature of minus 20 ℃ and placing the test samples at the temperature of 48 h, using a servo tensile material tester to strip a substrate layer in the test samples, separating the substrate layer from the adhesive layer, and recording the readings of the servo tensile material tester when the strip is 10 cm, namely the fastness of the adhesive layer and the substrate layer;

the results of the performance test of the packaging films provided in the above application examples and comparative application examples are shown in tables 1 and 2 below:

TABLE 1

TABLE 2

According to the utility model, through designing the structures of the transfer base film paper and the packaging film, and further through arranging the optical positioning information in the transfer base film layer, the transfer paper with a simple structure and a positioning effect is obtained, the production efficiency and the precision of the transfer base film paper and the packaging film are improved, and after film precision and distortion test and PS precision and distortion test, no obvious distortion exists.

Compared with application example 1, if the thickness of the transfer base film layer is too small (application example 5) or too large (application example 6), the precision of the prepared transfer base film paper and packaging film is poor, and there is a distortion phenomenon.

If the thickness of the adhesive layer is too small (application example 9) or too large (application example 10) as compared with application example 1, the transfer base film paper and the packaging film are prepared with poor precision, and have a distortion phenomenon, and the adhesive layer has low fastness.

Compared with application example 1, if the optical positioning information of the transfer base film layer does not contain a positioning cursor (application example 11), the positioning effect of the prepared transfer base film paper and packaging film is poor, the precision test cannot be performed, and the production efficiency is low.

Compared with application example 1, the transfer paper (comparative application example 1) provided by the prior art has a complex structure, a poor positioning effect and poor precision.

In summary, the utility model designs the structures of the transfer base film paper and the packaging film, and further obtains the transfer paper with simple structure and positioning effect by arranging the optical positioning information in the transfer base film layer, thereby improving the production efficiency and the precision of the transfer base film paper and the packaging film.

The detailed structural features of the present utility model are described in the above embodiments, but the present utility model is not limited to the above detailed structural features, that is, it does not mean that the present utility model must be implemented depending on the above detailed structural features. It should be apparent to those skilled in the art that any modifications of the present utility model, equivalent substitutions of selected components of the present utility model, addition of auxiliary components, selection of specific modes, etc., are within the scope of the present utility model and the scope of the disclosure.

Claims (12)

1. The transfer base film paper is characterized by comprising laminated coated paper and a transfer base film layer;

the transfer base film layer is internally provided with optical positioning information;

the optical positioning information is positioned on one side of the transfer base film layer far away from the laminating paper.

2. The transfer substrate film of claim 1, wherein the optical positioning information comprises an optical microstructure and a positioning cursor;

and/or, the transfer base film layer is obtained by adopting an extrusion method.

3. The transfer substrate film of claim 2, wherein the optical microstructures comprise at least one of cat eyes, embossments, plain holograms, lenticular gratings, metallic wire drawing stripes.

4. The transfer substrate film of claim 2, wherein the positioning cursor is disposed about the optical microstructure.

5. The transfer base film paper according to claim 1, wherein the film-coated paper comprises a first film, a base paper, and a second film which are laminated in this order, the second film being closer to the transfer base film layer than the first film.

6. The transfer base film paper according to claim 5, wherein the base paper is selected from any one of coated paper, kraft paper, white cardboard, gray cardboard;

and/or the gram weight of the base paper is 100-300 g/m ² ；

And/or the first covering film is selected from any one of PET film, PVC film, BOPP film, PP film or PET release film;

and/or the thickness of the first coating film is 12-50 μm;

and/or the second covering film is selected from any one of PET film, PVC film, BOPP film, PP film or PET release film;

and/or the thickness of the second coating film is 12-50 μm.

7. The transfer base film paper according to claim 1, wherein the transfer base film layer is selected from any one of a PET film layer, a PE film layer, a PVC film layer, a BOPP film layer, or a PP film layer;

and/or the extrusion amount of the transfer base film layer is 15-20 g/m ² 。

8. A packaging film comprising a printed layer, a transfer base film layer according to any one of claims 1 to 7, a reflective layer, an adhesive layer and a substrate layer, which are laminated in this order.

9. The packaging film of claim 8, further comprising a protective layer between the print layer and the transfer base film layer;

and/or the dry coating weight of the protective layer is 3-8 g/m ² ；

And/or the reflecting layer is selected from any one of an aluminized layer, a zinc sulfide plated layer or a titanium dioxide plated layer;

and/or the thickness of the reflecting layer is 0.03-0.04 μm;

and/or the dry coating weight of the adhesive layer is 4-8 g/m ² ；

And/or the substrate layer is selected from any one of kraft paper, coated paper, white cardboard, gray cardboard and plastic film;

and/or the gram weight of the substrate layer is 60-400 g/m ² 。

10. A system for preparing a transfer substrate film according to any one of claims 1 to 7, characterized in that the preparation system comprises a transfer unit and an extrusion unit connected.

11. A system for preparing a packaging film according to claim 8 or 9, characterized in that it comprises a transfer unit, an extrusion unit, a coating unit, a compounding unit, a peeling unit and a printing unit, which are connected in sequence.

12. The system for producing packaging film as recited in claim 11, further comprising a coating unit located between the peeling unit and the printing unit;

or, the preparation system of the packaging film further comprises a corona unit and a coating unit, wherein the corona unit and the coating unit are sequentially arranged between the stripping unit and the printing unit.