Printable non-setting adhesive noctilucent film

Abstract

The utility model provides a printable non-setting adhesive noctilucent film, which relates to the technical field of noctilucent films and comprises a bonding layer arranged on one side of the noctilucent film and a printing layer arranged on one side of the noctilucent film. The printing layer comprises a carrier layer and a scratch-resistant printing layer which are sequentially arranged on the noctilucent film; a first corona layer is arranged on the side, where the carrier layer is adhered, of the noctilucent film, the adhesion capacity of the noctilucent film is improved by arranging the first corona layer on a noctilucent film material, the carrier layer is firmly attached to the noctilucent film, the carrier layer is matched with the scratch-resistant printing layer to prevent the situation that ink or the printing layer is separated, and the problems that in the prior art, noctilucent film ink adhesion is poor, and the service life of the noctilucent film is short are solved. And printing contents are separated from each other due to treading or friction, so that the use is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of luminous films, in particular to a printable self-adhesive luminous film. Background Art

[0002] Luminous film is a soft plastic luminous film, also known as light storage film. After being excited by a light source, it can glow for a long time when the light source is removed. The luminous time is determined by the amount of luminous powder and the properties of the luminous powder. It can be divided into long-term (long afterglow) and short-term (shorter luminous time). It has a better light storage time and is often used in evacuation passages and underground work areas.

[0003] Luminous films are generally used for nighttime anti-collision signs, on / off signs, and ground escape signs, but the ink adhesion is often poor, and the printed content may come off due to stepping on or friction, thus affecting its use.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] One of the purposes of the utility model is to provide a printable self-adhesive luminous film to solve the technical problems in the prior art that the luminous film has poor ink adhesion and the printed content may be detached due to stepping or friction, thus affecting the use.

[0006] In order to achieve the above-mentioned purpose of the utility model, the following technical solutions are adopted:

[0007] The utility model provides a printable self-adhesive luminous film, comprising an adhesive layer arranged on one side of the luminous film and a printing layer arranged on one side of the luminous film;

[0008] The printing layer comprises a carrier layer and a scratch-resistant printing layer which are sequentially arranged on the luminous film;

[0009] A first corona layer is provided on one side of the luminous film that is adhered to the carrier layer;

[0010] A primer layer is further included between the carrier layer and the anti-scratch printing layer.

[0011] Furthermore, the thickness ratio of the primer layer, the anti-scratch printing layer and the carrier layer is 1:(1-3):(5-20).

[0012] Furthermore, the anti-scratch printing layer has a thickness of 2 to 3 μm;

[0013] The thickness of the carrier layer is 10 to 20 μm;

[0014] The thickness of the primer layer is 1 to 2 μm.

[0015] Furthermore, the carrier layer is a transparent PET polyester film, and the anti-scratch printing layer is made of a material consisting of toluene, butanone, 5219 varnish and epoxy resin.

[0016] Furthermore, the base coating is made of a material including a matte UV base coating, butanone, a cross-linking agent and anhydrous ethanol.

[0017] Furthermore, the carrier layer is adhered to the luminous film through a composite adhesive layer.

[0018] Furthermore, the composite adhesive layer is made of a material consisting of polyurethane resin, polyester polyol polyisocyanate modified body and ethyl acetate.

[0019] Furthermore, the thickness of the composite adhesive layer is 7-9 μm.

[0020] Furthermore, the adhesive layer includes a self-adhesive layer and a release paper which are sequentially arranged on the luminous film.

[0021] Furthermore, a second corona layer is provided on the side of the carrier layer where the anti-scratch printing layer is provided.

[0022] The utility model provides a printable self-adhesive luminous film, which improves the adhesion of the luminous film by setting a first corona layer on the luminous film material, so that the carrier layer is firmly attached to the luminous film, and cooperates with the anti-scratch printing layer to prevent the ink or printing layer from detaching, thereby solving the technical problem that the luminous film has poor ink adhesion in the prior art, and the printed content will be detached due to stepping or friction, thus affecting the use. At the same time, the carrier layer protects the luminous film, reduces the oxidation speed of the luminous film material, avoids oxidation failure, and enhances the reflective life of the luminous film. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the structure of a printable self-adhesive luminous film provided in Example 1 of the utility model;

[0025] Figure 2 A schematic diagram of the cross-sectional structure of a printable self-adhesive luminous film provided in Example 1 of the utility model;

[0026] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0027] Figure 4 A schematic diagram of the cross-sectional structure of a printable self-adhesive luminous film provided in Example 2 of the utility model;

[0028] Figure 5 for Figure 4 A magnified schematic diagram of the structure at B in the middle;

[0029] Figure 6 This is a schematic diagram of the coating equipment structure provided in Example 3 of the utility model.

[0030] Icon: 1-luminous film; 11-first corona layer;

[0031] 2-adhesive layer; 21-adhesive layer; 22-release paper;

[0032] 3-printing layer; 31-carrier layer; 311-second corona layer; 32-anti-scratch printing layer; 33-priming layer;

[0033] 4-composite adhesive layer;

[0034] 5- Unwinding I; 6- Unwinding II; 7- Oven; 8- Supply and exhaust air. DETAILED DESCRIPTION

[0035] Unless otherwise defined herein, scientific and technical terms used in conjunction with the present invention shall have the meanings commonly understood by those of ordinary skill in the art. The meaning and scope of the terms should be clear, however, in the case of any potential ambiguity, the definitions provided herein take precedence over any dictionary or external definitions. In this application, unless otherwise stated, the use of "or" means "and / or". In addition, the use of the term "including" and other forms is non-limiting.

[0036] In the description of the present utility model, it should be noted that the terms "proximal end", "distal end", "front end", "rear end", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0037] The terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The utility model specifically provides a printable self-adhesive luminous film, comprising an adhesive layer 2 arranged on one side of the luminous film 1 and a printing layer 3 arranged on the other side of the luminous film 1;

[0040] The printing layer 3 comprises a carrier layer 31 and a scratch-resistant printing layer 32 which are sequentially arranged on the luminous film 1;

[0041] A first corona layer 11 is provided on one side of the luminous film 1 to which the carrier layer 31 is adhered;

[0042] A primer layer 33 is further provided between the carrier layer 31 and the anti-scratch printing layer 32 .

[0043] The luminous film 1 is made of light-storing polyurethane material, and the first corona layer 11 is prepared by a 3.0 corona process.

[0044] By setting the first corona layer 11 on the luminous film 1 material, the adhesion of the luminous film 1 is improved, and the carrier layer 31 is firmly attached to the luminous film 1. The carrier layer 31, the primer layer 33 and the anti-scratch printing layer 32 cooperate to prevent the ink or the printing layer from detaching, which solves the technical problem that the luminous film has poor ink adhesion in the prior art, and the printed content will be detached due to stepping or friction, thus affecting the use. At the same time, the carrier layer 31 protects the luminous film, reduces the oxidation rate of the luminous film material, avoids oxidation failure, and enhances the reflective life of the luminous film.

[0045] The luminous film 1 is made of a light-storage polyurethane film or a polyvinyl chloride film.

[0046] In some specific embodiments, the thickness ratio of the primer layer 33, the anti-scratch printing layer 32 and the carrier layer 31 is 1: (1-3): (5-20). By limiting the thickness ratio of the primer layer 33, the anti-scratch printing layer 32 and the carrier layer 31, separation or shedding of the layers caused by an unbalanced thickness ratio, bulging and the like can be prevented.

[0047] In order to make the anti-scratch printing layer 32 closely bonded with the adjacent layers, in some specific embodiments, the thickness of the anti-scratch printing layer 32 is 2-3 μm.

[0048] Avoid the situation where the anti-scratch printing layer 32 is too thin, causing the printing layer to be detached and damaged, or too thick, causing the printing layer to be separated from the carrier layer 31.

[0049] The thickness of the anti-scratch printed layer 32 may be, but is not limited to, 2 μm, 2.1 μm, 2.2 μm, 2.3 μm, 2.4 μm, 2.5 μm, 2.6 μm, 2.7 μm, 2.8 μm, 2.9 μm or 3 μm, and may be any value between 2 and 3 μm.

[0050] In some specific implementations, the carrier layer 31 has a thickness of 10 to 20 μm.

[0051] The thickness of the carrier layer 31 may be, but is not limited to, 10 μm, 11 μm, 12 μm, 13 μm, 14 μm, 15 μm, 16 μm, 17 μm, 18 μm, 19 μm or 20 μm, and may also be any value between 10 and 20 μm.

[0052] In some specific implementations, the thickness of the primer layer 33 is 1-2 μm.

[0053] The thickness of the primer layer 33 may be, but is not limited to, 1 μm, 1.1 μm, 1.2 μm, 1.3 μm, 1.4 μm, 1.5 μm, 1.6 μm, 1.7 μm, 1.8 μm, 1.9 μm or 2.0 μm, and may be any value between 1 and 2 μm.

[0054] In some specific embodiments, the carrier layer 31 is a transparent PET polyester film.

[0055] The transparent PET polyester film has good light transmittance, which can avoid affecting the use effect of the luminous film and the appearance performance of the product. It is used together with the anti-scratch printing layer 32 to solve the problem of ink falling off of the printing layer and extend the service life.

[0056] In some specific implementations, the anti-scratch printing layer 32 is made of a material consisting of toluene, butanone, 5219 varnish and epoxy resin.

[0057] The anti-scratch printing layer 32 made of a material composed of toluene, butanone, 5219 varnish and epoxy resin has a smooth surface structure, which can improve the adhesion of ink and printing clarity, and enhance the user experience.

[0058] The base coating layer is made of a material including a matte UV base coating, butanone, a cross-linking agent and anhydrous ethanol. The base coating layer 33 can increase the adhesion firmness of the anti-scratch printing layer 32.

[0059] In some specific implementations, the carrier layer 31 is adhered to the luminous film 1 via a composite adhesive layer 4 .

[0060] In some specific implementations, the composite adhesive layer 4 is made of a material consisting of polyurethane resin, polyester polyol polyisocyanate modified body and ethyl acetate.

[0061] In some specific implementations, the thickness of the composite adhesive layer 4 is 7-9 μm.

[0062] The thickness of the composite adhesive layer 4 may be, but is not limited to, 7 μm, 7.2 μm, 7.4 μm, 7.6 μm, 7.8 μm, 8 μm, 8.2 μm, 8.4 μm, 8.6 μm, 8.8 μm or 9 μm, or any value between 7 and 9 μm.

[0063] In some specific embodiments, the adhesive layer 2 includes a self-adhesive layer 21 and a release paper 22 which are sequentially disposed on the luminous film 1 .

[0064] The release paper 22 is provided to prevent the self-adhesion of the self-adhesive layer 21 , and to isolate and protect the adhesive surface of the self-adhesive layer 21 .

[0065] In some specific embodiments, a second corona layer 311 is provided on one side of the carrier layer 31 where the anti-scratch printing layer 32 is provided.

[0066] The second corona layer 311 is formed by adopting a 3.0 corona process.

[0067] By arranging the second corona layer 311 on the carrier layer 31, the adhesion ability of the carrier layer 31 is improved, so that the anti-scratch printing layer 32 is firmly attached to the carrier layer 31, so as to prevent the anti-scratch printing layer 32 from separating from the carrier layer 31.

[0068] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0069] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0070] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0071] Example 1

[0072] Combination Figure 1 to Figure 5 To illustrate, a printable self-adhesive luminous film comprises, from bottom to top, a release paper 22, a self-adhesive layer 21, a luminous film 1, a composite adhesive layer 4, a carrier layer 31, a primer layer 33 and a scratch-resistant printing layer 32.

[0073] Among them, the luminous film is made of light-storing polyurethane film.

[0074] The thickness ratio of the primer layer 33, the anti-scratch printing layer 32 and the carrier layer 31 is 1: (1-3): (5-20)

[0075] The thickness of the primer layer 33 is 1 to 2 μm, and it is made of a material including a matte UV primer, butanone, a cross-linking agent and anhydrous ethanol;

[0076] The carrier layer 31 is a transparent PET polyester film with a thickness of 10 to 20 μm.

[0077] A first corona layer 11 is provided on one side of the luminous film 1 on which the carrier layer 31 is adhered; a second corona layer 311 is provided on one side of the carrier layer 31 on which the anti-scratch printed layer 32 is provided.

[0078] The anti-scratch printing layer 32 has a thickness of 2-3 μm and is made of a material consisting of toluene, butanone, 5219 varnish and epoxy resin.

[0079] The composite adhesive layer 4 has a thickness of 7 to 9 μm and is made of a material consisting of polyurethane resin, polyester polyol polyisocyanate modified body and ethyl acetate.

[0080] Example 2

[0081] In order to better illustrate the structure of the printable self-adhesive luminous film, this embodiment combines Figure 6 The specific preparation process of the printable self-adhesive luminous film is described.

[0082] 1) Mix the base coating formulation as shown in Table 1;

[0083] Table 1

[0084]

[0085] 2) Install a 200 mesh anilox roller and apply the base coating on the corona surface of the 15 μm PET material, with a coating thickness of 1-2 μm and a machine speed of 40 M / min.

[0086] Among them, the process parameters of the supply and exhaust air 8 and the oven 7①~⑥ sections are set according to the process conditions shown in Table 2.

[0087] Table 2

[0088] parameter ① ② ③ ④ ⑤ ⑥ temperature 50±5℃ 70±5℃ 80±5℃ 110±5℃ 80±5℃ 60±5℃ Air supply 15±0.5 18±0.5 22±0.5 28±0.5 32±0.5 30±0.5

[0089] 3) Tail rewinding

[0090] 4) subjecting the functional surface of the material of the luminous film 1 to a 3.0 corona process;

[0091] 5) According to Table 3, the materials are mixed to prepare the anti-scratch printing layer 32;

[0092] Table 3

[0093]

[0094]

[0095] 6) Install a 110 mesh anilox roller and apply the anti-scratch printing layer 32 on the base coating on the corona surface of the 15 μm PET material, with a coating thickness of 2 to 3 μm and a machine speed of 40 M / min.

[0096] Among them, the process parameters of the supply and exhaust air 8 and the oven 7①~⑥ sections are set according to the process conditions shown in Table 4.

[0097] Table 4

[0098] parameter ① ② ③ ④ ⑤ ⑥ temperature 60±5℃ 80±5℃ 100±5℃ 110±5℃ 130±5℃ 90±5℃ Air supply 15±0.5 18±0.5 22±0.5 28±0.5 32±0.5 30±0.5

[0099] 7) Tail reeling.

[0100] 8) As shown in Table 5, the composite glue is mixed according to the formula operation instruction to prepare a composite glue layer 4;

[0101] Table 5

[0102]

[0103] 9) Install H-55 anilox roller on the equipment, install 15μm transparent PET at unwinding position I5, coat the non-coated surface, and the coating thickness is 7-9μm.

[0104] Among them, the process parameters of the supply and exhaust air 8 and the oven 7①~⑥ sections are set according to the process conditions shown in Table 6.

[0105] Table 6

[0106] parameter ① ② ③ ④ ⑤ ⑥ temperature 40±5℃ 50±5℃ 60±5℃ 70±5℃ 50±5℃ 40±5℃ Air supply 15±0.5 18±0.5 25±0.5 30±0.5 25±0.5 25±0.5

[0107] 10) Luminous film material, luminous side facing upwards, the tail of the machine and the functional side of the PET adhesive laminated material are compositely rolled;

[0108] 11) After compounding, the materials were aged at 50°C for 4 hours;

[0109] 12) As shown in Table 7, the material glue is mixed according to the formula operation instruction to prepare the self-adhesive label:

[0110] Table 7

[0111]

[0112] 13) Load the release paper material into unwinding position I5, and load the composite luminous film material into unwinding position II6;

[0113] 14) Release paper tape adhesive, transfer coating process, coating thickness: 20μm±2μm;

[0114] Among them, the process parameters of the supply and exhaust air 8 and the oven 7①~⑥ sections are set according to the process conditions shown in Table 8.

[0115] Table 8

[0116] parameter ① ② ③ ④ ⑤ ⑥ temperature 50±5℃ 70±5℃ 110±5℃ 130±5℃ 100±5℃ 60±5℃ Air supply 15±0.5 18±0.5 25±0.5 30±0.5 25±0.5 25±0.5

[0117] 15) The tail is attached to the non-functional surface of the luminous film 1.

[0118] Example 3

[0119] The printable self-adhesive luminous film provided in Example 1 was prepared according to the preparation method described in Example 2, and the specific setting parameters are shown in Table 9.

[0120] Table 9

[0121]

[0122] The wear resistance, printing performance and firmness of the printable self-adhesive luminous films prepared by the selected sample 1 and comparative examples 1 to 6 were tested respectively according to the following methods to compare the performance differences between the printable self-adhesive luminous films with different parameters.

[0123] The wear resistance test specifically adopts the method of "friction resistance test method", the printing performance test specifically adopts the method of printing test of UV ink on printable self-adhesive luminous film, and the firmness test specifically adopts the method of "adhesion test". The results are shown in Table 10.

[0124] Table 10

[0125]

[0126] As shown in Table 10, the wear resistance, printing performance and firmness of sample 1 are the best. Compared with sample 1, the wear resistance and printing performance of comparative examples 1 and 2 are both subject to the problems of coating detachment, ink loss or whitening of printing, indicating that the provision of a scratch-resistant printing layer and a primer layer can improve the wear resistance and printing performance; the PET layer of comparative examples 3 and 4 is delaminated, indicating that the carrier layer is too thick or the composite adhesive layer is too thin, which will lead to delamination; although the scratch-resistant printing layer is provided in comparative examples 5 and 6, the scratch-resistant printing layer cannot play the role of increasing the wear resistance and printing performance when it is too thin, and although there is no ink loss when it is too thick, its cost is too high. Therefore, the appropriate thickness and ratio range of the scratch-resistant printing layer, the carrier layer and the primer layer can give full play to the role of each layer, and have a synergistic effect on improving the wear resistance, printing performance and firmness.

[0127] Directions:

[0128] When in use, the corresponding content can be printed on the anti-scratch printing layer 32 according to specific needs, and the printable self-adhesive luminous film 1 can be cut into a suitable shape as needed, such as square, circle, trapezoid, strip or other irregular shapes, and the release paper 22 can be torn off to expose the self-adhesive, which can be pasted to the position where it is needed.

[0129] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A printable self-adhesive luminous film, characterized in that: It comprises an adhesive layer (2) arranged on one side of a luminous film (1) and a printing layer (3) arranged on the other side of the luminous film (1); The printing layer (3) comprises a carrier layer (31) and a scratch-resistant printing layer (32) which are sequentially arranged on the luminous film (1); A first corona layer (11) is provided on one side of the luminous film (1) to which the carrier layer (31) is adhered; A primer layer (33) is also included between the carrier layer (31) and the anti-scratch printing layer (32).

2. The luminous film according to claim 1, characterized in that: The thickness ratio of the primer layer (33), the anti-scratch printing layer (32) and the carrier layer (31) is 1:(1-3):(5-20).

3. The luminous film according to claim 2, characterized in that: The anti-scratch printing layer (32) has a thickness of 2 to 3 μm; The carrier layer (31) has a thickness of 10 to 20 μm; The thickness of the primer layer (33) is 1 to 2 μm.

4. The luminous film according to claim 2, characterized in that: The carrier layer (31) is a transparent PET polyester film.

5. The luminous film according to claim 1, characterized in that: The carrier layer (31) is adhered to the luminous film (1) via a composite adhesive layer (4).

6. The luminous film according to claim 5, characterized in that: The thickness of the composite adhesive layer (4) is 7 to 9 μm.

7. The luminous film according to any one of claims 1 to 6, characterized in that: The adhesive layer (2) comprises a self-adhesive layer (21) and a release paper (22) which are sequentially arranged on the luminous film (1).

8. The luminous film according to any one of claims 1 to 6, characterized in that: A second corona layer (311) is provided on the side of the carrier layer (31) where the anti-scratch printing layer (32) is provided.

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