CN113427875A - Composite film with three-dimensional effect and manufacturing process thereof - Google Patents

Composite film with three-dimensional effect and manufacturing process thereof Download PDF

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Publication number
CN113427875A
CN113427875A CN202110778743.1A CN202110778743A CN113427875A CN 113427875 A CN113427875 A CN 113427875A CN 202110778743 A CN202110778743 A CN 202110778743A CN 113427875 A CN113427875 A CN 113427875A
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CN
China
Prior art keywords
film
pattern
printing
dimensional effect
layer
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Pending
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CN202110778743.1A
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Chinese (zh)
Inventor
戈应仓
王茂刚
吴方奴
孙震
胡敬慈
朱志明
高鑫
刘幸
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Yunnan Mingbo Packaging And Printing Co ltd
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Yunnan Mingbo Packaging And Printing Co ltd
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Priority to CN202110778743.1A priority Critical patent/CN113427875A/en
Publication of CN113427875A publication Critical patent/CN113427875A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/14—Printing or colouring
    • B32B38/145—Printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/402—Coloured
    • B32B2307/4023—Coloured on the layer surface, e.g. ink
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7246—Water vapor barrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2553/00—Packaging equipment or accessories not otherwise provided for

Abstract

The invention relates to a composite film with three-dimensional effect and a manufacturing process thereof, belonging to the technical field of composite films, the composite film with three-dimensional effect is characterized in that a first pattern is retracted a certain distance compared with the edge of a second pattern, the first pattern is staggered 0.2-0.3 mm to one side of the second pattern to generate three-dimensional effect, a transparent layer is arranged between an outer layer film and an inner layer film to enhance the refraction effect of the second pattern when the second pattern penetrates through the transparent layer, amplify the three-dimensional effect, enable a film body to present strong three-dimensional pattern, enhance the display effect and improve the purchase desire of consumers, the manufacturing process of the composite film with three-dimensional effect enables a printing film to synchronously print the first pattern and the second pattern on a printing roller, synchronously cut the inner layer film and the outer layer film, synchronously align and compound the film body, and enable the retraction values of the first pattern and the second pattern on the film body to be accurately controlled within the required range, the problem of three-dimensional failure caused by serious dislocation is avoided.

Description

Composite film with three-dimensional effect and manufacturing process thereof
Technical Field
The invention belongs to the technical field of composite membranes, and particularly relates to a composite membrane with a three-dimensional effect and a manufacturing process thereof.
Background
At present, the appearance presentation modes of the soft plastic packaging composite film mainly comprise local bright and matte highlighting, light variable appearance, gold sand effect, window opening effect thixotropic ink, temperature change ink and the like, the presentation effects can help the package to increase a lot of attractiveness, but with long-time application, the package does not meet the requirement of new and different package standards any more, and on hard packages such as hard plastics, picture frames and the like, a three-dimensional packaging picture is gradually created, so that the hard packaging box with the three-dimensional picture has a more dazzling visual sense, the purchase desire of consumers is improved, but the soft plastic packaging composite film is not applied in soft plastic packaging all the time.
Therefore, a composite film with three-dimensional effect and a manufacturing process thereof are in need of emergence.
Disclosure of Invention
The invention provides a composite film with a three-dimensional effect and a manufacturing process thereof, which are used for solving the technical problem that the existing soft plastic packaging composite film does not have a three-dimensional appearance packaging effect.
The invention is realized by the following technical scheme: the utility model provides a complex film with three-dimensional effect, includes the membrane body, the membrane body includes outer rete and inner film, be equipped with the stratum lucidum between outer rete and the inner film, the printing has first pattern on the outer rete, the printing has the second pattern the same with first pattern shape on the inner film, each edge indentation of first pattern ratio second pattern is 0.2mm-0.3 mm.
Further, in order to better implement the invention, the composite material further comprises a barrier layer, wherein the barrier layer is compounded on one side of the inner layer film.
Further, in order to better implement the invention, the heat-sealing film further comprises a heat-sealing layer, wherein the heat-sealing layer is compounded on one side of the barrier layer.
A manufacturing process of a composite film with a three-dimensional effect comprises the following steps:
the method comprises the following steps: preparing a printing film and a printing roller, arranging a tangent line in the middle of the printing film, wherein the tangent line divides the printing film into an outer layer film and an inner layer film, the printing roller is provided with a first printing area corresponding to a first pattern and a second printing area corresponding to a second pattern, and the outer layer film and the inner layer film synchronously and respectively print the first pattern and the second pattern through the printing roller;
step two: drying the printed film printed in the step one, guiding and correcting the printed film through a first guide roller, and enabling the printed film to enter a splitting machine, wherein the splitting machine splits the inner layer film and the outer layer film through a splitting line, the inner layer film is pulled to one side through a second guide roller, and the outer layer film is pulled to the other side through a third guide roller;
step three: and (3) the inner layer film and the outer layer film drawn in the second step are realigned and synchronously pass through the first extrusion roller set, the first extrusion roller set comprises a first extrusion roller and a second extrusion roller, an extrusion die head for compounding a transparent layer between the inner layer film and the outer layer film is arranged between the first extrusion roller and the second extrusion roller, and the inner layer film, the transparent layer and the outer layer film are extruded and heat-sealed into a whole through the first extrusion roller set.
Further, in order to better realize the invention, a second extrusion roller set is arranged on the film outlet side of the first extrusion roller set, and the inner film and the barrier layer are extruded and heat-sealed into a whole through the second extrusion roller set.
Further, in order to better realize the invention, a third extrusion roller group is arranged on the film outlet side of the second extrusion roller group, and the barrier layer and the heat sealing layer are extruded and heat sealed into a whole through the third extrusion roller group.
Further, to better implement the present invention, the barrier layer is AL film or VMPET film or PET film or KPET film.
Further, in order to better implement the present invention, the heat seal film is a PE film or a CPP film.
Further, in order to better implement the present invention, the transparent layer is a molten state of the PE film or the CPP film.
Further, in order to better implement the present invention, the printed film is a PET film or a BOPP film or a BOPA film.
Compared with the prior art, the invention has the following beneficial effects:
the composite film with three-dimensional effect provided by the invention comprises a film body, wherein the film body comprises an outer film and an inner film, a transparent layer is arranged between the outer film and the inner film, a first pattern is printed on the outer film, a second pattern with the same shape as the first pattern is printed on the inner film, the edge of each first pattern area is retracted 0.2mm-0.3mm from the edge of each second pattern, by adopting the structure, the first pattern on the outer layer film is staggered to one side of the second pattern on the inner layer film by 0.2-0.3 mm by making the first pattern retract a certain distance compared with the edge of the second pattern, thereby generating a three-dimensional effect, the transparent layer arranged between the outer layer film and the inner layer film enhances the refraction effect of the second pattern when the second pattern penetrates through the transparent layer, and further, the three-dimensional effect is amplified, so that the film body presents strong three-dimensional patterns, the display effect is enhanced, and the purchasing desire of consumers is improved.
The invention also provides a manufacturing process of the composite film with the three-dimensional effect, which comprises the following steps:
the method comprises the following steps: preparing a printing film and a printing roller, arranging a tangent line in the middle of the printing film, wherein the tangent line divides the printing film into an outer layer film and an inner layer film, the printing roller is provided with a first printing area corresponding to a first pattern and a second printing area corresponding to a second pattern, and the outer layer film and the inner layer film synchronously and respectively print the first pattern and the second pattern through the printing roller;
step two: drying the printed film printed in the step one, guiding and correcting the printed film through a first guide roller, and enabling the printed film to enter a splitting machine, wherein the splitting machine splits the inner layer film and the outer layer film through a splitting line, the inner layer film is pulled to one side through a second guide roller, and the outer layer film is pulled to the other side through a third guide roller;
step three: and (3) the inner layer film and the outer layer film drawn in the second step are realigned and synchronously pass through the first extrusion roller set, the first extrusion roller set comprises a first extrusion roller and a second extrusion roller, an extrusion die head for compounding a transparent layer between the inner layer film and the outer layer film is arranged between the first extrusion roller and the second extrusion roller, and the inner layer film, the transparent layer and the outer layer film are extruded and heat-sealed into a whole through the first extrusion roller set.
By applying the process, the printing film is enabled to synchronously print the first pattern and the second pattern on one printing roller, synchronously cut the inner layer film and the outer layer film, and synchronously align and compound the film body, so that the retraction values of the first pattern and the second pattern on the film body are accurately controlled within a required range, the problem of three-dimensional failure caused by serious dislocation is avoided, and the soft plastic packaging composite film supported by the process can also present the beautiful three-dimensional pattern effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of a composite film having a three-dimensional effect according to the present invention;
FIG. 2 is a schematic diagram of a three-dimensional effect of a composite film having a three-dimensional effect according to the present invention;
fig. 3 is a process flow diagram of a process for manufacturing a composite film having a three-dimensional effect according to the present invention.
In the figure:
1-a membrane body; 101-outer layer film; 102-an inner layer film; 103-a transparent layer; 104-a barrier layer; 105-a heat-seal layer; 2-a first pattern; 3-a second pattern; 4-printing a film; 41-tangent line division; 5-a printing roller; 51-a first print area; 52-a second print area; 6-a first guide roller; 7-a second guide roller; 8-a third guide roller; 9-a first set of squeeze rolls; 91-a first squeeze roll; 92-a second squeeze roll; 10-an extrusion die head; 11-a second set of squeeze rolls; 12-a third set of compression rollers; 13-splitting machine.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
In the description of the present invention, it is to be noted that "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
Example 1:
in this embodiment, a composite film having a three-dimensional effect, as shown in fig. 1 and 2, includes a film body 1, the film body 1 includes an outer layer film 101 and an inner layer film 102, a transparent layer 103 is provided between the outer layer film 101 and the inner layer film 102, the transparent layer 103 is used to generate a light refraction effect, a first pattern 2 is printed on the outer layer film 101, a second pattern 3 having the same shape as the first pattern 2 is printed on the inner layer film 102, the first pattern 2 is recessed 0.2mm to 0.3mm from each edge of the second pattern 3, and the first pattern 2 and the second pattern 3 are offset by a predetermined distance.
With this structure, the first pattern 2 on the outer layer film 101 is shifted by 0.2m to 0.3mm to one side of the second pattern 3 on the inner layer film 102 by retracting the first pattern 2 to a certain distance from the edge of the second pattern 3, thereby generating a three-dimensional effect, and the transparent layer 103 provided between the outer layer film 101 and the inner layer film 102 enhances the refraction effect of the second pattern 3 when passing through the transparent layer 103, thereby enlarging the three-dimensional effect, so that the film body 1 presents a strong three-dimensional pattern, enhancing the display effect, and enhancing the purchase desire of consumers.
In this embodiment, as shown in fig. 1, the packaging container further includes a barrier layer 104, the barrier layer 104 is laminated on the inner film 102 side, and the barrier layer 104 functions to block gas and water vapor from contacting the packaged object and also functions to block light from the inner film 102 side, so that the outer film 101 side is patterned to block the packaging container pattern.
Further, as shown in fig. 1, the packaging material further comprises a heat sealing layer 105, wherein the heat sealing layer 105 is compounded on one side of the barrier layer 104, and the heat sealing layer 105 is used for being in direct contact with a packaged object and facilitating heat sealing and packaging with the packaged object.
Example 2:
in this embodiment, as shown in fig. 3, a process for manufacturing a composite film with a three-dimensional effect includes the following steps:
the method comprises the following steps: preparing a printing film 4 and a printing roller 5, arranging a dividing line 41 in the middle of the printing film 4, wherein the dividing line 41 divides the printing film 4 into an outer layer film 101 and an inner layer film 102, the printing roller 5 is provided with a first printing area 51 corresponding to a first pattern 2 and a second printing area 52 corresponding to a second pattern 3, and the outer layer film 101 and the inner layer film 102 are respectively printed with the first pattern 2 and the second pattern 3 synchronously by the printing roller 5;
step two: drying the printed film 4 printed in the step one, guiding and correcting the printed film through a first guide roller 6, and enabling the printed film to enter a splitting machine 13, wherein the splitting machine 13 splits the inner layer film 102 and the outer layer film 101 through a splitting line 41, the inner layer film 102 is pulled to one side through a second guide roller 7, and the outer layer film 101 is pulled to the other side through a third guide roller 8;
step three: and the inner film 102 and the outer film 101 drawn in the second step are realigned and synchronously pass through a second extrusion roller set 9, the second extrusion roller set 9 comprises a first extrusion roller 91 and a second extrusion roller 92, an extrusion die head 10 for compounding a transparent layer 103 between the inner film 102 and the outer film 101 is arranged between the first extrusion roller 91 and the second extrusion roller 92, and the inner film 102, the transparent layer 103 and the outer film 101 are extruded and heat-sealed into a whole through the second extrusion roller set 9.
By using the process, the first pattern 2 and the second pattern 3 are synchronously printed on the printing film 4 on the printing roller 5, the inner layer film 102 and the outer layer film 101 are synchronously cut out, and the film body 1 is synchronously aligned and compounded, so that the retraction values of the first pattern 2 and the second pattern 3 on the film body 1 are accurately controlled within a required range, the problem of three-dimensional failure caused by serious dislocation is avoided, and the soft plastic packaging composite film supported by the process can also present a beautiful three-dimensional pattern effect.
In the present embodiment, as shown in fig. 3, a first printing area 51 and a second printing area 52 are engraved on the outer surface of the printing roller 5 in parallel in the axial direction, the first printing area 51 prints a first pattern 2 on the outer layer film 101, and the second printing area 52 prints a second pattern 3 on the inner layer film 102, wherein the dividing line 41 is provided at the center of the printing film 4 so that the width of the outer layer film 101 and the width of the inner layer film 102 are the same, the pattern in the first printing area 51 is the same as the pattern in the second printing area 52 and is disposed opposite to the dividing line 41 with the center of the axis, the pattern in the first printing area 51 is shifted toward the center by 0.2mm to 0.3mm, and when the outer layer film 101 and the inner layer film 102 are subsequently aligned and laminated, the first pattern 2 can be retracted by 0.2mm to 0.3mm from the edge of the second pattern 3, as shown in fig. 2, thereby creating a three-dimensional stereoscopic effect.
The principle of printing the first pattern 2 and the second pattern 3 using a printing plate instead of the printing roll 5 and patterning the printing plate is the same as that of the printing roll 5.
In this embodiment, the first guide roller 6 is used to flatten the printed film 4 so that the slit lines 41 of the printed film 4 are aligned with the center positions of the slitting machines 13 of the slitting machine 13, thereby smoothly slitting the outer layer film 101 and the inner layer film 102 having the same size from the positions of the slit lines 41, so that the outer layer film 101 and the inner layer film 102 can be regularly aligned and laminated.
In this embodiment, as shown in fig. 3, the number of the second guide rollers 7 and the number of the third guide rollers 8 are the same, the outer layer film 101 and the inner layer film 102 are kept flat by guiding and drawing actions of the plurality of second guide rollers 7 and the plurality of third guide rollers 8, respectively, and the heating devices such as heating pipes may be further disposed in the second guide rollers 7 and the third guide rollers 8 to slowly dry the outer layer film 101 and the inner layer film 102, thereby facilitating subsequent composite operation.
In this embodiment, as shown in fig. 3, the inner film 102 and the outer film 101 are realigned and simultaneously passed between the first pressing roll 91 and the second pressing roll 92, the extrusion die extrudes a heat-sealing material for forming the transparent layer 103 between the first pressing roll 91 and the second pressing roll 92, so that the inner film 102 and the outer film 101 are heat-sealed into a whole through the transparent layer 103, the transparent layer 103 is a molten PE film or a CPP film, and is condensed to form a transparent structure layer, so that the second pattern 3 on the inner film 102 can be printed on the outer film 101 through the transparent structure layer, and the extrusion die can adjust the addition amount of the molten PE film or CPP film.
Example 3:
in this embodiment, as shown in fig. 3, a second squeeze roller set 11 is provided on the film exit side of the second squeeze roller set 9, the inner film 102 and the barrier layer 104 are extruded and heat sealed into a whole by the second squeeze roller set 11, a third squeeze roller set 12 is provided on the film exit side of the second squeeze roller set 11, and the barrier layer 104 and the heat seal layer 105 are extruded and heat sealed into a whole by the third squeeze roller set 12, so that the final product of the composite film having a three-dimensional effect of the present invention is obtained, and finally, the composite film is wound and stored.
In this embodiment, the barrier layer 104 is preferably an AL film, a VMPET film, a PET film, or a KPET film, and the barrier layer 104 and the inner layer film 102 may be compounded by conventional solvent-free compounding, dry-wet compounding, or extrusion compounding, preferably extrusion compounding.
In the present embodiment, the heat-sealing film is preferably a PE film, a CPP film, or another film having a heat-sealing function.
In this embodiment, the printing film 4 is preferably a PET film, a BOPP film, or a BOPA film, the thicker the printing film 4 is, the better the three-dimensional effect is, and the ink used for the printing roller 5 is preferably an ink of a pearlescent large-particle-size pigment having a color change effect, and the three-dimensional effect can be similarly enhanced.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. A composite film having a three-dimensional effect, characterized by: including the membrane body, the membrane body includes outer membrane and inner film, be equipped with the stratum lucidum between outer membrane and the inner film, the printing has first pattern on the outer membrane, the printing has the second pattern the same with first pattern shape on the inner film, first pattern is more than each edge indentation 0.2mm-0.3mm of second pattern.
2. A three-dimensional effect composite film according to claim 1, wherein: the composite material further comprises a barrier layer, and the barrier layer is compounded on one side of the inner layer film.
3. A three-dimensional effect composite film according to claim 2, wherein: the heat-sealing layer is compounded on one side of the barrier layer.
4. A manufacturing process of a composite film with a three-dimensional effect is characterized by comprising the following steps:
the method comprises the following steps: preparing a printing film and a printing roller, arranging a tangent line in the middle of the printing film, wherein the tangent line divides the printing film into an outer layer film and an inner layer film, the printing roller is provided with a first printing area corresponding to a first pattern and a second printing area corresponding to a second pattern, and the outer layer film and the inner layer film synchronously and respectively print the first pattern and the second pattern through the printing roller;
step two: drying the printed film printed in the step one, guiding and correcting the printed film through a first guide roller, and enabling the printed film to enter a splitting machine, wherein the splitting machine splits the inner layer film and the outer layer film through a splitting line, the inner layer film is pulled to one side through a second guide roller, and the outer layer film is pulled to the other side through a third guide roller;
step three: and (3) the inner layer film and the outer layer film drawn in the second step are realigned and synchronously pass through the first extrusion roller set, the first extrusion roller set comprises a first extrusion roller and a second extrusion roller, an extrusion die head for compounding a transparent layer between the inner layer film and the outer layer film is arranged between the first extrusion roller and the second extrusion roller, and the inner layer film, the transparent layer and the outer layer film are extruded and heat-sealed into a whole through the first extrusion roller set.
5. The process of claim 4 for preparing a composite film with three-dimensional effect, wherein: the film outlet side of the first extrusion roller set is provided with a second extrusion roller set, and the inner layer film and the barrier layer are extruded and heat-sealed into a whole through the second extrusion roller set.
6. The process of claim 5 for preparing a composite film with three-dimensional effect, wherein: and a third extrusion roller set is arranged on the film outlet side of the second extrusion roller set, and the barrier layer and the heat sealing layer are extruded and heat sealed into a whole through the third extrusion roller set.
7. The process of claim 5 for preparing a composite film with three-dimensional effect, wherein: the barrier layer is an AL film or a VMPET film or a PET film or a KPET film.
8. The process of claim 6 for preparing a composite film with three-dimensional effect, wherein: the heat-sealing film is a PE film or a CPP film.
9. A process for making a composite film with three dimensional effect according to any of claims 4 to 8 wherein: the transparent layer is a molten state of the PE film or the CPP film.
10. The process of claim 9 for preparing a composite film with three-dimensional effect, wherein: the printing film is a PET film or a BOPP film or a BOPA film.
CN202110778743.1A 2021-07-09 2021-07-09 Composite film with three-dimensional effect and manufacturing process thereof Pending CN113427875A (en)

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Application publication date: 20210924