CN116638880A - Micro-nano structure color laser in-mold transfer film and production method thereof - Google Patents
Micro-nano structure color laser in-mold transfer film and production method thereof Download PDFInfo
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- CN116638880A CN116638880A CN202310744538.2A CN202310744538A CN116638880A CN 116638880 A CN116638880 A CN 116638880A CN 202310744538 A CN202310744538 A CN 202310744538A CN 116638880 A CN116638880 A CN 116638880A
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- 239000002086 nanomaterial Substances 0.000 title claims abstract description 66
- 238000012546 transfer Methods 0.000 title claims abstract description 56
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- 239000011248 coating agent Substances 0.000 claims abstract description 22
- 238000000576 coating method Methods 0.000 claims abstract description 22
- 238000010023 transfer printing Methods 0.000 claims abstract description 21
- 238000007639 printing Methods 0.000 claims abstract description 19
- 238000002955 isolation Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 11
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- 239000000758 substrate Substances 0.000 claims description 15
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- 230000000694 effects Effects 0.000 claims description 12
- 238000004049 embossing Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 9
- 239000011241 protective layer Substances 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 5
- 230000000181 anti-adherent effect Effects 0.000 claims description 3
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
- B05D7/04—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber to surfaces of films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
- B41M1/30—Printing on other surfaces than ordinary paper on organic plastics, horn or similar materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
- B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
Abstract
The invention provides a micro-nano structure color laser in-mold transfer printing film and a production method, which belong to the technical field of transfer printing films and comprise a base film, wherein the base film is a transparent film, one side of the base film is coated with an anti-sticking coating, and the anti-sticking coating is used for preventing the base film from adhering in the printing, coating, rewinding, storage or use processes; the other side of the base layer film is coated with an elastic layer which is used for keeping release force with the isolation layer; the in-mold transfer film product combines the nano structure with the color pattern, so that the appearance of the product can be enriched, the in-mold transfer film can achieve some special performances, and the application range is improved; the in-mold transfer film product has better stability, and after the product is stretched for many times and the original state is restored, the brightness of the micro-nano structure layer cannot be attenuated, the presented micro-nano structure patterns and/or characters cannot be damaged, and the transfer film cannot crack.
Description
Technical Field
The invention relates to the technical field of transfer films, in particular to a micro-nano structure color laser in-mold transfer film and a production method thereof.
Background
The nanoimprint transfer technique is to first coat an organic polymeric material onto the stamp. After the imprinting material uniformly fills the relief pattern surface of the stamp, the stamp is molded onto a planar substrate. The stamp is removed and the imprinted structure on the stamp is transferred to a planar substrate. If the stamp is made of a non-transparent material, such as a nickel plate, a transparent substrate may be used. The stamp coated with the imprint material is imprinted on a transparent substrate, and then ultraviolet light is irradiated from the direction of the transparent substrate to effect curing of the imprint material.
The in-mold transfer printing technology is to print a printed pattern on a release film, attach the film with a plastic substrate model in vacuum, heat and pressurize, then separate a patterned ink layer from the release layer, and leave the ink layer on the plastic material, thereby obtaining the decorative pattern on the surface. The transfer printing film on the market at present mainly comprises a thermal transfer printing film, a water transfer printing film, an ultraviolet curing transfer printing film and the like.
The invention patent with publication number of CN109677152A discloses a production process of a transfer film with 3D optical effect, wherein the process enables the 3D optical effect of the produced transfer film to still exist after transfer by printing an ink layer on a 3D optical texture layer.
In the investigation process, the existing transfer film with three-dimensional effect is found to have some problems:
first of all, there are some problems in the production of the product. The transfer film with the stereoscopic effect is produced by the cooperation of the stereoscopic effect layer and the pattern layer, which requires the stereoscopic effect layer to be completely corresponding to the pattern layer, otherwise, the pattern layer is not corresponding to the stereoscopic structure, and defective products are caused.
The existing transfer film products are generally processed by adopting an online roller, from unreeling, processing (steps of gluing, embossing and the like) to reeling, once deviation occurs, the deviation exists in the whole subsequent roll of products, if the deviation is not timely adjusted, the deviation can be further increased, and finally the whole roll of transfer film is scrapped.
Secondly, there are some problems with the existing transfer film products themselves. At present, the transfer printing film is widely applied to the fields of automotive interiors, mobile phone back plates, electric appliance panels, surface decoration of 3C peripheral products and the like, and the conventional transfer printing film is not only limited to planar scenes, but also is commonly used for other special-shaped structure scenes such as concave surfaces, convex surfaces and the like. Taking car steering wheel as an example, because car steering wheel is the ring shape, when the transfer printing membrane cladding on the steering wheel, transfer printing membrane's the outside deformation is great, and current some transfer printing membrane products have that the stereo structure appears warp, outside membrane leads to the easy scheduling problem of fracture in the follow-up use because of deformation is too big, has reduced experience effect and result of use.
Disclosure of Invention
The invention provides a micro-nano structure color laser in-mold transfer film and a production method thereof, which aim to solve the technical problem that the transfer film is easy to crack when a special-shaped product is decorated in the prior art.
In order to solve the problems, the micro-nano structure color laser in-mold transfer printing film provided by the invention adopts the following technical scheme: the anti-sticking coating is used for preventing the base film from being adhered in the printing, coating, rewinding, storage or use process; the other side of the base layer film is coated with an elastic layer which is used for keeping release force with the isolation layer;
the isolation layer is coated on the elastic layer, and can prevent the ink from adhering to the elastic layer during pattern printing;
the pattern layer is printed on the isolation layer in a reverse printing mode, so that the pattern after transfer printing is a positive effect; the printing roller is provided with a marking structure, so that the pattern layer is uniformly provided with pattern layer marks;
the micro-nano structure layer adopts a liquid imprinting material which can be solidified by ultraviolet, and when the ultraviolet is irradiated, photopolymerization reaction is carried out, and the liquid state or the paddle state is changed into a solid state from the initial liquid state or the paddle state; the micro-nano structure layer is formed by embossing the embossing roller, and the embossing roller is also provided with a marking structure, so that the micro-nano structure layer is provided with a structure layer mark corresponding to the pattern layer;
a protective layer for protecting the micro-nano structural layer from damage;
and the adhesive layer plays a role in connection.
The technical scheme of the invention has the following beneficial effects:
1. the combination of the nano structure and the color pattern can enrich the appearance of the product, and the in-mold transfer film can achieve some special performances.
2. The elastic layer replaces the traditional release layer, and after bending, the release layer cannot crack, so that the release layer is high in adaptability.
As a further improvement, the base layer film adopts a cast polypropylene film, and the cast polypropylene film is used as a transparent substrate, and ultraviolet light can pass through the base layer film, so that the micro-nano structure is easy to solidify and form.
The cast polypropylene film (CPP) has the advantages of high transparency, high strength, stretching resistance and high temperature resistance, and can prevent deformation and stretching caused by temperature rise during in-mold transfer printing, so that the transferred image and text is intact. The in-mold transfer film adopts a non-transparent stamp, and the curing process is realized by reversely irradiating the transparent substrate by ultraviolet light. CPP is used as transparent substrate, ultraviolet light easily passes through the film, so that the micro-nano structure is easy to solidify and form.
As a further improvement, the micro-nano structure layer is a polyurethane layer, the polyurethane has rebound memory performance, the brightness of the micro-nano structure layer cannot be attenuated after the product is stretched for many times and is restored to the original state, and the presented micro-nano structure pattern and/or characters cannot be damaged.
As a further improvement, the protective layer is a metal layer, plays a role in reflecting the micro-nano structure layer structure, and the product has a metal effect, so that the colorful patterns are combined with the micro-nano structure and then are reversely lined with gorgeous colors.
The metal protective layer not only can reflect the metal effect, but also can protect the micro-nano structure layer from being damaged.
As a further improvement, the adhesive layer is a TPU layer, and the thickness of the adhesive layer is 5-20 μm.
Because of in-mold transfer, the product may be shaped, requiring strong adhesion and a certain elasticity. The TPU layer having elasticity can prevent cracks from being generated due to stretching.
The invention also provides a production method of the micro-nano structure color laser in-mold transfer film, which specifically comprises the following steps:
coating an anti-adhesive layer on one side of the cast polypropylene film, and coating an elastic layer on the other side of the cast polypropylene film;
coating a printable isolation layer on the elastic layer, and sequentially printing color patterns, counterpoint embossing the micro-nano structure, electroplating and coating TPU hot melt glue;
and finally, performing quality inspection and cutting.
As a further improvement, the pattern layer is provided with a pattern layer mark, the micro-nano structure layer is provided with a structure layer mark, the cast polypropylene film is transparent, the position of the pattern layer mark and the structure layer mark is read by using a camera device, and when the pattern layer mark is overlapped with the structure layer mark, the equipment normally operates; when the pattern layer marks and the structural layer marks are staggered up and down, the camera device feeds back to the feeding and unreeling control system, the movement speed of the cast polypropylene film is adjusted, and the transverse position of the pressing roller is finely adjusted to realize the position adjustment of the cast polypropylene film.
By adopting the production method, the problem of micro-nano structure and pattern deviation can be solved. Because the micro-nano structure is finer, once deviation occurs, the internal mold transfer film cannot reach the due effect, and therefore, the production of the internal mold transfer film with the micro-nano structure is required to be very high in machining precision. According to the invention, the marks are respectively arranged on the micro-nano structure layer and the pattern layer, and the marks are captured and read by the image pickup device, so that once the dislocation of the upper mark and the lower mark is larger than a set value, the image pickup device timely feeds back to the feeding and unreeling control system and timely adjusts, the yield of products is ensured, and the scrapping of the transfer printing film in the whole roll die is avoided.
The beneficial effects of the invention are as follows:
1. the in-mold transfer film product combines the nano structure with the color pattern, can enrich the appearance of the product, ensures that the in-mold transfer film has special performances, and improves the application range.
2. The in-mold transfer film product has better stability, and after the product is stretched for many times and the original state is restored, the brightness of the micro-nano structure layer cannot be attenuated, the presented micro-nano structure patterns and/or characters cannot be damaged, and the transfer film cannot crack.
3. The production method has higher yield, the greatest difficulty of combining the micro-nano structure with the pattern is processing precision, the transfer printing film is processed in a roll-to-roll continuous conveying and embossing mode, and once deviation occurs, the deviation occurs in subsequent coiled materials, so that the whole roll of transfer printing film is scrapped. The processing method is characterized in that the mark is set, the image pickup device is used for collecting mark information, real-time information is timely fed back to the control system, parameters such as winding and unwinding speed and positions of the roll shafts are timely adjusted by the control system according to the feedback information, and processing precision is improved through real-time adjustment.
Drawings
The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. In the drawings, embodiments of the invention are illustrated by way of example and not by way of limitation, and like reference numerals refer to similar or corresponding parts and in which:
FIG. 1 is a schematic diagram of a micro-nano structure color laser in-mold transfer film;
FIG. 2 is a schematic structural diagram of a method for producing a micro-nano structured color laser in-mold transfer film according to the present invention.
Reference numerals illustrate:
11. a release coating; 12. a base layer film; 13. an elastic layer; 14. an isolation layer; 15. a pattern layer; 16. a micro-nano structural layer; 17. a protective layer; 18. a glue layer;
21. an unreeling device; 22. a printing device; 23. an ultraviolet irradiation device; 24. a stamping roller; 25. and a winding device.
Detailed Description
The following description of the embodiments of the present invention will be made more complete and clear to those skilled in the art by reference to the figures of the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Transfer films in the prior art, including thermal transfer films, water transfer films, ultraviolet curing transfer films and the like, are products of a certain process and are relatively monotonous. Transfer films combining 3D stereoscopic structures with patterns have been presented, but such transfer films are only suitable for planar products due to their thicker thickness. The problems of deformation, cracking and the like are easy to cause when the special-shaped product is used, so that the experience effect is relatively general.
In view of the above problems, the micro-nano structure layer is combined with the pattern layer, and the micro-nano structure layer, the release layer, the adhesive layer and the like are improved, so that the in-mold transfer film has better elasticity, is not easy to deform and crack after being bent, and can meet the use requirement of more special-shaped products.
Aiming at the problems encountered by combining the micro-nano structure layer and the pattern layer, the invention also aims at improving the processing method, wherein the greatest difficulty of combining the micro-nano structure layer and the pattern layer is processing precision, and the transfer printing film is processed in a roll-to-roll continuous conveying and stamping mode, so that once deviation occurs, the deviation occurs in the subsequent coiled materials, and the whole roll of transfer printing film is scrapped. The processing method is characterized in that the mark is set, the image pickup device is used for collecting mark information, real-time information is timely fed back to the control system, parameters such as winding and unwinding speed and positions of the roll shafts are timely adjusted by the control system according to the feedback information, and processing precision is improved through real-time adjustment.
Having described the basic principles of the present invention, various non-limiting embodiments of the invention are described in detail below. Any number of elements in the figures are for illustration and not limitation, and any naming is used for distinction only and not for any limiting sense.
The principles and spirit of the present invention are explained in detail below with reference to several representative embodiments thereof.
Example 1 of the micro-nano structured color laser in-mold transfer film provided by the invention:
as shown in fig. 1, the present in-mold transfer film includes a release coating 11, a base film 12, an elastic layer 13, an isolation layer 14, a pattern layer 15, a micro-nano structure layer 16, a protective layer 17, and an adhesive layer 18.
In the present embodiment, the base film 12 is a 50u cast polypropylene film (CPP) used for the base film 12, and the cast polypropylene film has high transparency, high strength, stretching resistance and high temperature resistance, and can prevent deformation and stretching due to temperature rise during in-mold transfer, so that the transferred image and text is intact. The in-mold transfer film adopts a non-transparent stamp, and the curing process is realized by reversely irradiating the transparent substrate by ultraviolet light. The CPP is used as a transparent substrate, and ultraviolet light emitted by the ultraviolet irradiation device 23 easily passes through the film, so that the micro-nano structure is easy to solidify and form.
One side of the base film 12 is coated with a release coating 11, and the release coating 11 is used for preventing the base film 12 from being adhered in the printing, coating, rewinding, storage or use process, and in the embodiment, the release coating 11 adopts release gloss oil, and the thickness of the release gloss oil is 0.5um-1um;
the other side of the base layer film 12 is coated with an elastic layer 13 for keeping a release force with the isolation layer 14, the elastic layer 13 has elasticity, and does not crack after stretching and restoring, so that the elastic layer can be firmly adhered with the base material layer and can keep a certain range of release force with the protection layer 17, and can serve as a traditional release layer, and in the embodiment, the elastic layer is an elastic polyurethane layer;
a spacer layer 14, the spacer layer 14 being coated on the elastic layer 13, the spacer layer 14 being capable of preventing adhesion of the ink to the elastic layer 13 at the time of pattern printing;
the pattern layer 15, i.e. the colour ink layer, is a user designed colour pattern of the product, which is printed by the printing means 22. The pattern layer 15 adopts UV-LED primary color ink with stretching property, the primary color ink has high transparency, and the micro-nano structure can be maximally contrast when ultraviolet light is solidified. The pattern layer 15 is printed on the isolation layer 14 in a reverse printing manner, so that the pattern after transfer is a positive effect. The pattern layer 15 is uniformly distributed with the pattern layer 15 marks by the marking structure on the printing roller, the shape and the size of the marks can be automatically adjusted according to the product, and the image pick-up device can read.
The micro-nano structure layer 16, wherein the micro-nano structure layer 16 adopts a liquid imprinting material capable of being solidified by ultraviolet, and when being irradiated by ultraviolet, photopolymerization reaction occurs, and the liquid state or the paddle state is changed into a solid state from the initial liquid state or the paddle state; the micro-nano structured layer 16 is stamped and formed by a stamping roller 24, and the stamping roller 24 is also provided with a marking structure, so that the micro-nano structured layer 16 has a structure layer mark corresponding to the pattern layer 15.
The micro-nanostructure layer 16 is generally formed from: the micro-nano structure layer 16 is made of polyurethane, which has rebound memory property, and the brightness of the micro-nano structure layer 16 is not attenuated after the product is stretched and restored to the original state for many times, and the presented micro-nano structure pattern and/or text is not damaged.
A protective layer 17 for protecting the micro-nano structured layer 16 from damage. In this embodiment, the protection layer 17 is an aluminized layer, which protects the micro-nano structure layer 16 from being damaged, and plays a role in reflecting the structure layer structure, so that the product has a metal effect, and the color pattern and the micro-nano structure are combined to be reversely lined with gorgeous colors.
The glue layer 18, which has a connecting function, may be shaped due to the in-mold transfer, and requires strong adhesion and a certain elasticity. In this embodiment, the adhesive layer 18 is an elastic TPU layer capable of preventing cracks from being generated due to stretching, and the thickness of the adhesive layer 18 is 5 μm to 20 μm.
The production method of the micro-nano structure color laser in-mold transfer film specifically comprises the following steps:
one side of the cast polypropylene film is coated with an anti-adhesive layer, and the other side is coated with an elastic layer 13;
coating a printable isolation layer 14 on the elastic layer 13, and sequentially printing color patterns, counterpoint embossing the micro-nano structure, electroplating and coating TPU hot melt glue;
and finally, performing quality inspection and cutting.
In this embodiment, as shown in fig. 2, the flexible substrate film 12 is continuously transported in a roll-to-roll manner by using a continuous embossing technique, in which the flexible substrate film 12 is unwound by the unwinding device 21, wound by the winding device 25, and the embossing roller 24 continuously rotates to continuously replicate the micro-nano structure on the embossing roller onto the surface of the flexible substrate film 12.
The pattern layer 15 is provided with a pattern layer 15 mark, the micro-nano structure layer 16 is provided with a structure layer mark, the cast polypropylene film is transparent, the position of the pattern layer 15 mark and the structure layer mark is read by using a camera device, and when the pattern layer 15 mark is overlapped with the structure layer mark, the equipment normally operates; when the marks of the pattern layer 15 and the marks of the structural layer are staggered up and down, the camera device feeds back to the feeding and unreeling control system, the movement speed of the cast polypropylene film is adjusted, and the transverse position of the pressing roller is finely adjusted to realize the position adjustment of the cast polypropylene film.
While various embodiments of the present invention have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Many modifications, changes, and substitutions will now occur to those skilled in the art without departing from the spirit and scope of the invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in practicing the invention. The appended claims are intended to define the scope of the invention and are therefore to cover all module forms, equivalents, or alternatives falling within the scope of the claims.
Claims (7)
1. The micro-nano structure color laser in-mold transfer film is characterized by comprising the following components:
the base layer film (12), the base layer film (12) is a transparent film, one side of the base layer film (12) is coated with a release coating (11), and the release coating (11) is used for preventing the base layer film (12) from being adhered in the printing, coating, rewinding, storage or use process; the other side of the base layer film (12) is coated with an elastic layer (13) which is used for keeping release force with the isolation layer (14);
a release layer (14), the release layer (14) being coated on the elastic layer (13), the release layer (14) being capable of preventing the ink from adhering to the elastic layer (13) during pattern printing;
the pattern layer (15), the pattern layer (15) is printed on the isolation layer (14) by adopting a reverse printing mode, so that the pattern after transfer printing is a positive effect; the marking structure on the printing roller ensures that the pattern layer (15) is uniformly distributed with the marks of the pattern layer (15);
the micro-nano structure layer (16), the micro-nano structure layer (16) adopts a liquid imprinting material which can be solidified by ultraviolet, and when the ultraviolet is irradiated, photopolymerization reaction occurs, and the liquid state or the paddle state is changed into a solid state from the initial liquid state or the paddle state; the micro-nano structure layer (16) is formed by stamping by a stamping roller (24), and a marking structure is also arranged on the stamping roller (24), so that the micro-nano structure layer (16) has a structure layer mark corresponding to the pattern layer (15);
a protective layer (17) for protecting the micro-nano structured layer (16) from damage;
and the adhesive layer (18) plays a role in connection.
2. The micro-nano structured color laser in-mold transfer film according to claim 1, wherein the micro-nano structured color laser in-mold transfer film is characterized in that: the base layer film (12) adopts a casting polypropylene film, and the casting polypropylene film is used as a transparent substrate, and ultraviolet light can pass through the base layer film, so that the micro-nano structure is easy to solidify and form.
3. The micro-nano structured color laser in-mold transfer film according to claim 2, wherein the micro-nano structured color laser in-mold transfer film is characterized in that: the micro-nano structure layer (16) is a polyurethane layer, the polyurethane has rebound memory performance, after the product is stretched for many times and restored to the original state, the brightness of the micro-nano structure layer (16) cannot be attenuated, and the presented micro-nano structure patterns and/or characters cannot be damaged.
4. The micro-nano structured color laser in-mold transfer film according to claim 1, wherein the micro-nano structured color laser in-mold transfer film is characterized in that: the protective layer (17) is a metal layer, plays a role in reflecting the micro-nano structure layer (16), and the product has a metal effect, so that the colorful patterns are combined with the micro-nano structure and then are reversely lined with gorgeous colors.
5. The micro-nano structured color laser in-mold transfer film according to claim 1, wherein the micro-nano structured color laser in-mold transfer film is characterized in that: the adhesive layer (18) is a TPU layer, and the thickness of the adhesive layer (18) is 5-20 mu m.
6. The production method of the micro-nano structure color laser in-mold transfer film is characterized by comprising the following steps of:
one side of the cast polypropylene film is coated with an anti-adhesive layer, and the other side is coated with an elastic layer (13);
coating a printable isolation layer (14) on the elastic layer (13), and sequentially printing color patterns, counterpoint embossing micro-nano structures, electroplating and coating TPU hot melt glue;
and finally, performing quality inspection and cutting.
7. The method for producing the micro-nano structure color laser in-mold transfer film according to claim 6, which is characterized in that: the pattern layer (15) is provided with a pattern layer (15) mark, the micro-nano structural layer (16) is provided with a structural layer mark, the cast polypropylene film is transparent, the position of the pattern layer (15) mark and the position of the structural layer mark are read by using a camera device, and when the pattern layer (15) mark and the structural layer mark are overlapped, the equipment normally operates; when the marks of the pattern layer (15) and the marks of the structural layer are staggered up and down, the camera device feeds back to the feeding and unreeling control system, the movement speed of the cast polypropylene film is adjusted, and the transverse position of the pressing roller is finely adjusted to realize the position adjustment of the cast polypropylene film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310744538.2A CN116638880A (en) | 2023-06-21 | 2023-06-21 | Micro-nano structure color laser in-mold transfer film and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310744538.2A CN116638880A (en) | 2023-06-21 | 2023-06-21 | Micro-nano structure color laser in-mold transfer film and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116638880A true CN116638880A (en) | 2023-08-25 |
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ID=87618913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310744538.2A Pending CN116638880A (en) | 2023-06-21 | 2023-06-21 | Micro-nano structure color laser in-mold transfer film and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116638880A (en) |
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2023
- 2023-06-21 CN CN202310744538.2A patent/CN116638880A/en active Pending
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