CN210528849U

CN210528849U - Flexible decorative film

Info

Publication number: CN210528849U
Application number: CN201921192488.7U
Authority: CN
Inventors: 周立; 梁昌盛
Original assignee: Wuxi Guma New Material Technology Co Ltd
Current assignee: Wuxi Guma New Material Technology Co Ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-05-15
Anticipated expiration: 2029-07-26

Abstract

The utility model relates to a flexible decorative film, which comprises a surface decorative layer, an adhesive layer and a release film from bottom to top in turn, wherein the surface decorative layer comprises a first PVC layer, a printing layer and a second PVC layer from bottom to top in turn; the printing layer is formed by printing ink on the surface of the second PVC layer in a spray painting mode, the first PVC layer and one side, provided with the printing layer, of the second PVC layer are compounded together in a hot-pressing compounding mode, the adhesive layer is formed by coating an acrylic resin adhesive on the upper surface of the second PVC layer in a coating mode and curing at normal temperature. The utility model provides a rolling and storage add decorating film in-process, because the pulling force and lead to the air discharge duct on the glue film to disappear and produce tympanic bulla, unevenness and paste the problem of difficulty because of the bubble when making the terminal customer use.

Description

Flexible decorative film

Technical Field

The utility model relates to a decorative film, in particular to a flexible decorative film made of a material.

Background

The decorative film is a new type decorative material, can be compounded with wood, plastic, aluminium plate and iron plate base material to obtain the invented multipurpose decorative material, and can be extensively used in the fields of domestic electric appliances and interior decoration, etc.

Fuji economic company has studied the overall situation of the related market and future trend of decorative films based on the environmental protection requirement of painting replacement, Fuji economic term, the market of decorative films has diversified types, and the uses of decorative films are expanding continuously. Although the unit price of the decorative film is decreasing, the range of use thereof is gradually expanding due to the decrease in price, and the market is expected to expand steadily in the future. Fuji economy predicts that the decorated film market will be $ 11 million 5610 million by 2020, with IMF/IM-L films (for automobiles) on a market scale of $ 31700 million and OMD (TOM) films of $ 14800 million. In China, due to strict requirements on control of volatile matters such as paint, formaldehyde and the like, the demand of decorative films on household appliances and household articles is increasing continuously, and the market scale is expanding continuously.

The decorative film can represent different creative designs through printing, vapor deposition, coloring, coating, nano-multi-layer structure, and the like. Biological ink, paint and pigment will be put into use in the future. In terms of functionality, the decorative film has functions of radio waves, electromagnetic waves, and optics, in addition to general functions.

At present, a base material film of a decorative film can be prepared from different raw materials by different processes according to the specific application scene requirements, and has a large choice, but the back of the base material film is coated with an adhesive, so that the decorative film is convenient to use specifically.

In the conventional coating process, the adhesive is flatly printed on a substrate film through a coating roller, and then a PE film is used as a release film for packaging, so that a decorative film of a sold product is formed; when the adhesive is used by a customer, the PE film is removed, so that the adhesive layer can be exposed and adhered to the surfaces of furniture, electric appliances and the like for surface decoration.

At present, a decorative film is generally adopted for pouring a pure PE film on base paper, then embossing and silicon coating are carried out, the pure PE is easy to deform at the temperature of more than 40 ℃, namely, the decorative film can cause the PE release film to deform in summer storage and transportation, namely, an embossing structure is damaged, an exhaust channel is blocked, and bubbles generated in the process of attaching cannot be smoothly discharged due to the fact that an exhaust groove part fails or completely fails after the decorative film is bonded with an attached object, so that the bubbling phenomenon is caused, and the aesthetic effect of the decorative film is influenced.

In the prior art, some air discharge grooves are additionally arranged on the adhesive surface, so that bubbles between the decorative film and the surface of an attached object are discharged through the air discharge grooves, and the flatness is improved, for example, the bubble-proof surface structure of the adhesive film disclosed in the Chinese patent publication No. CN204622699U and the manufacturing method of the air guide groove car body sticker disclosed in the Chinese patent publication No. CN101581061B are used, and the patterns with the air discharge grooves are pressed on the adhesive surface by using a knurling roller, so that the air discharge is convenient during the film attaching. In practical production, after the patterns are pressed on the surface of the rubber layer, a release film is attached to the rubber layer, and the rubber layer can be rolled and transported; the roll film rolling needs to exert pulling force, and pressure exists between the rolled films, can lead to the air discharge duct on the glue film to disappear gradually, so the air discharge duct generally can only play a role in pasting the release film, when the substrate film itself is removed from the pasting operation, the air discharge duct basically disappears, and does not play an exhausting role any more, which brings great inconvenience to the film pasting operation of the terminal user.

Therefore, further research and improvement are needed for the structure of the decorating film, so as to solve the problems encountered in the use of the decorating film of the terminal user and improve the sticking effect in the use of the terminal, thereby improving the use experience of the terminal user and expanding the market application of the decorating film.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flexible decorating film that adds has solved and has adopted from the type membrane to paste the agent layer so that rolling and storage add the decorating film in-process, thereby because the pulling force leads to the air discharge duct on the glue film to disappear and produce tympanic bulla, unevenness and paste the problem of difficulty because the bubble when making terminal customer use.

The technical scheme of the utility model as follows:

the flexible decorative film sequentially comprises a surface decoration layer, an adhesive layer and a release film from bottom to top, the surface decoration layer sequentially comprises a first PVC layer, a printing layer and a second PVC layer from bottom to top, a raised exhaust groove is formed in the lower surface of the release film, the cross section of the exhaust groove is trapezoidal, and when the release film is attached to the adhesive layer, an inwards concave exhaust channel is formed on the surface of the adhesive layer in an embossing mode;

the printing layer is formed by printing ink on the surface of the second PVC layer in a spray painting mode, and the first PVC layer and one side, provided with the printing layer, of the second PVC layer are compounded together in a hot-pressing compounding mode; the adhesive layer is formed by coating an acrylic resin adhesive on the upper surface of the second PVC layer in a coating mode and curing at normal temperature.

Further, the first PVC layer is made of a transparent PVC film material, and the thickness of the first PVC layer is 40-120 mu m; the thickness of the printing layer is 0.5-5 μm; the thickness of the second PVC layer is 50-200 μm.

Further, the thickness of the adhesive layer is 20-60 μm.

Further, the release film is a transparent PET release film with the thickness of 30-200 μm.

Further, the height h of the trapezoidal section of the exhaust groove is 12 to 48 μm, the width b of the upper portion of the trapezoidal section of the exhaust groove is 6 to 72 μm, and the width a of the lower portion of the trapezoidal section of the exhaust groove is 9 to 180 μm.

Further, the height h of the trapezoidal section of the exhaust groove is 15 to 30 μm, the width b of the upper portion of the trapezoidal section of the exhaust groove is 15 to 30 μm, and the width a of the lower portion of the trapezoidal section of the exhaust groove is 30 to 60 μm.

Furthermore, the air discharge grooves are parallel to each other on the surface of the release film, 2 groups of air discharge grooves are arranged in a crossed manner, and the distance D between every two adjacent air discharge grooves in the same group is 0.5-2.5 mm.

Further, the 2 groups of exhaust grooves are arranged across 60 degrees, and the distance D1 between the 2 corresponding exhaust grooves 31 is 1.5-3mm as D2.

The utility model discloses flexible decorating film that adds, compared with among the prior art, its advantage lies in: the utility model discloses a cross-sectional design of air discharge duct is trapezoidal, when making from type membrane subsides on pasting the agent layer, can be with the better discharge of air between the two, and simultaneously, the air discharge duct presses to pasting the agent layer, internal surface at pasting the agent layer forms trapezoidal exhaust passage, and thus, when terminal customer used, take off from the type membrane, make and paste the agent layer and expose, exhaust passage pastes when attaching to the surface of treating with ornaments on the face decoration layer this moment, can remain great air space with the position of being pasted the thing contact, guarantee gaseous quick discharge, thereby avoid the emergence of bubbling phenomenon, make the face decoration layer level and more smooth, and smooth, the final surface effect of treating with ornaments has been improved greatly.

Drawings

FIG. 1 is a schematic view of the overall structure of the flexible decorative film of the present invention;

FIG. 2 is a schematic view of the layered structure of the flexible decorative film of the present invention;

FIG. 3 is a schematic view of the gum structure of the flexible decorative film of the present invention;

FIG. 4 is a schematic structural view of the exhaust duct of the present invention;

FIG. 5 is a schematic structural view of the release film of the present invention;

reference numerals: the air-permeable decorative film comprises a surface decoration layer 1, an adhesive layer 2, a release film 3, a first PVC layer 11, a printing layer 12, a second PVC layer 13, an air exhaust channel 21 and an air exhaust groove 31.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and fig. 2, which are schematic structural diagrams of the flexible decorating film of the present invention, the flexible decorating film of the present invention comprises a surface decoration layer 1, an adhesive layer 2 and a release film 3 from the bottom. The outer surface of the surface decoration layer 1 is provided with decorative colors or patterns, such as wood grains, dermatoglyphs and the like; on the flexible decorative film, the surface decorative layer 1 has final decoration and barrier effects; the inner surface of the surface decoration layer 1 is jointed with the adhesive layer 2; as a flexible decorative film product, it is necessary to attach a release film 3 to the surface of the adhesive layer 2 during storage and sale.

As the utility model discloses the further improvement of flexible decorating film, finish layer 1 includes first PVC layer 11, printing layer 12 and second PVC layer 13 by supreme down in proper order, and concrete technology is: designing patterns according to the requirements of customers, printing ink on the upper surface of the second PVC layer 13 by adopting an inkjet printing mode to form a printing layer 12, and compounding the first PVC layer 11 on the surface of the second PVC layer 13 provided with the printing layer 12 by adopting a hot-pressing compounding mode to form the surface decoration layer 1. The first PV C layer 11 is a transparent PVC film produced by Jiangsu Mingyang polymer new material company Limited, the thickness is 40-120 μm, the thickness of the printing layer 12 is 0.5-5 μm, the second PVC layer 13 is a P VC film produced by Jiangsu Mingyang polymer new material company Limited, the second PVC layer 13 is transparent or non-transparent, and the thickness is 50-200 μm according to customer requirements.

As a further improvement of the flexible decorating film of the utility model, the adhesive layer 2 is formed by coating and curing an acrylic resin adhesive (which is purchased from Mitsubishi chemical corporation, model number BR-106) on the upper surface of the second PVC layer 13 by coating, and the thickness of the adhesive layer 2 is 20-60 μm.

As a further improvement of the flexible decorative film of the present invention, the upper surface of the adhesive layer 2 is covered with a release film 3 by a rolling manner, the release film 3 is a transparent PET release film (purchased from beijing century zhenghua plastic products limited, the model is PET-3.5C), the thickness is 30-200 μm, the lower surface of the release film 3 is provided with a convex exhaust groove 31, and on the surface contacting with the adhesive layer 2, an exhaust channel 21 with an inward concave is formed on the surface of the adhesive layer 2 by an embossing manner, specifically as shown in fig. 3.

The section of the exhaust groove 31 is trapezoidal, as shown in fig. 4.

Since the air discharge grooves 31 form the air discharge passages 21 in the adhesive layer 2 after the air discharge grooves 31 are brought into contact with the adhesive layer 2, the air discharge grooves 31 have a sectional shape and size such that the height of the trapezoidal section of the air discharge grooves 31 is smaller than the thickness of the adhesive layer 2.

In particular, the present invention relates to a method for producing,

the height h of the trapezoidal section of the exhaust groove 31 is 12-48 μm;

the upper width b of the trapezoidal section of the exhaust groove 31 is 6 to 72 μm;

the width a of the lower portion of the trapezoidal section of the exhaust groove 31 is 9 to 180 μm.

Further, preferred dimensions are:

the height h of the trapezoidal section of the exhaust groove 31 is 15-30 μm;

the upper width b of the trapezoidal section of the exhaust groove 31 is 15 to 30 μm;

the width a of the lower portion of the trapezoidal section of the exhaust groove 31 is 30 to 60 μm.

The exhaust grooves 31 are parallel to each other on the surface of the

release film

3, 2 groups of the exhaust grooves 31 are arranged in a crossed manner, a rectangle or a rhombus can be formed according to specific requirements, the distance D between every two adjacent exhaust grooves 31 in the same group is 0.5-2.5mm, and the selection can be specifically carried out according to corresponding design requirements; as shown in fig. 5, 2 sets of the exhaust grooves 31 are arranged to intersect at 60 °, and the distance D1 between the corresponding 2 exhaust grooves 31 is D2 is 1.5-3 mm.

Adopt the design of the air discharge duct 31 that the cross-section is trapezoidal, when pasting on the sticker layer 2 from type membrane 3, because there is air discharge duct 31, so when pasting from type membrane 3, can be with the better discharge of air between the two. The decorative film to which the release film 3 is attached is wound, and in the storage and transportation process after the winding, the exhaust grooves 31 are pressed against the adhesive layer 2 to form exhaust channels 21 on the inner surface of the adhesive layer 2.

Like this, when terminal customer used, will the utility model discloses a flexible decorating film that adds expandes, takes off from type membrane 3, makes and pastes agent layer 2 and expose, and exhaust passage 21 will paste agent layer 2 and add the air escape between the ornaments when face decoration layer 1 is attached to the surface of waiting to add ornaments this moment, makes face decoration layer 1 level and smooth more, smooth, has improved greatly and has waited to add the final surface effect of ornaments.

The utility model discloses an exhaust passage 21 is trapezoidal, big-end-up, so can remain great air space with the position of being pasted the thing contact, guarantee gaseous quick discharge to avoid the emergence of tympanic bulla phenomenon.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the embodiments disclosed, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention, the equivalents and substitutions being limited only by the scope of the appended claims.

Throughout the description and claims of this specification, the terms "comprise" and "comprise," and variations thereof, mean "including but not limited to," and are not intended to exclude other elements, additions, components, integers or stages.

Throughout the description and claims of this specification, the singular forms "a", "an", and "the" include plural referents unless the context requires otherwise. In particular, where the indefinite article is used, the specification is to be understood as contemplating plurality as well as singularity, unless the context requires otherwise.

All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive.

Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, each feature disclosed is one example only of a generic series of equivalent or similar features unless expressly stated otherwise.

The invention is not limited to the details of any of the foregoing embodiments. The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed.

Claims

1. The flexible decorative film is characterized by sequentially comprising a surface decoration layer, an adhesive layer and a release film from bottom to top, wherein the surface decoration layer sequentially comprises a first PVC layer, a printing layer and a second PVC layer from bottom to top;

2. The flexible decorative film of claim 1, wherein the first PVC layer is a transparent film material having a thickness of 40-120 μm; the thickness of the printing layer is 0.5-5 μm; the thickness of the second PVC layer is 50-200 μm.

3. The flexible decorative film according to claim 1, wherein the adhesive layer has a thickness of 20 to 60 μm.

4. The flexible decorative film according to claim 1, wherein the release film is a transparent PET release film having a thickness of 30 to 200 μm.

5. The flexible decorative film according to claim 1, wherein the height h of the trapezoidal section of the vent groove is 12 to 48 μm, the width b of the upper portion of the trapezoidal section of the vent groove is 6 to 72 μm, and the width a of the lower portion of the trapezoidal section of the vent groove is 9 to 180 μm.

6. The flexible decorative film according to claim 5, wherein the height h of the trapezoidal section of the vent groove is 15 to 30 μm, the width b of the upper portion of the trapezoidal section of the vent groove is 15 to 30 μm, and the width a of the lower portion of the trapezoidal section of the vent groove is 30 to 60 μm.

7. The flexible decorative film according to claim 6, wherein the vent grooves are parallel to each other on the surface of the release film, 2 groups of vent grooves are arranged in a crossing manner, and the distance D between the adjacent 2 vent grooves in the same group is 0.5-2.5 mm.

8. The flexible decorative film according to claim 7, wherein said 2 sets of vent grooves are arranged to intersect at 60 °, and the distance D1-D2-m between the respective 2 vent grooves 31.