Printed gold sand effect composite film

Abstract

The utility model discloses a kind of printed gold sand effect composite films, including printing film layer, intermediate film layer and heat-seal film layer, the printing film layer is set on the two sides of intermediate film layer with heat-seal film layer, it is characterized in that, still include gold sand gloss oil coating, the gold sand gloss oil coating is set in the printing film layer, and the two sides of printing film layer are gold sand gloss oil coating and intermediate film layer respectively, the thickness of the gold sand gloss oil coating is less than the thickness of printing film layer, the thickness of gold sand gloss oil coating is less than the thickness of intermediate film layer, the thickness of gold sand gloss oil coating is less than the thickness of heat-seal film layer.This kind of composite film has following beneficial effects: gold sand effect is formed by directly smearing gold sand gloss oil on printing film layer, preparation process is simpler, need not use adhesive, and it is not easy to appear the phenomenon of blistering, and gold sand effect coating can be formed in specific position according to need.

Description

Technical Field

[0001] This utility model relates to the field of packaging products, and in particular to a printed gold sand effect composite film. Background Technology

[0002] Gold sand effect packaging film is a commonly used packaging product. Since gold sand film itself cannot be heat-sealed, current gold sand effect packaging films are formed by combining gold sand film with a heat-sealing film layer to form a composite film, as shown in patent publication document CN211686354U. In this type of composite film, in order to ensure that the gold sand film can adhere, adhesive must be used for bonding. After bonding with adhesive, subsequent curing is required. Therefore, not only is the preparation process cumbersome, but it is also prone to problems such as bulging and cracking. Utility Model Content

[0003] To address the aforementioned problems, this invention proposes a printed gold sand effect composite film. The gold sand effect is achieved by directly applying gold sand varnish to the printed film layer. The preparation process is simpler, requires no adhesive, is less prone to bubbling and cracking, and the gold sand effect coating can be formed in specific locations as needed.

[0004] The technical solution adopted by this utility model is as follows:

[0005] A printed gold sand effect composite film includes a printed film layer, an intermediate film layer, and a heat-sealing film layer. The printed film layer and the heat-sealing film layer are disposed on both sides of the intermediate film layer. The film is characterized by further including a gold sand varnish coating, which is disposed on the printed film layer, with the gold sand varnish coating and the intermediate film layer respectively on both sides of the printed film layer. The thickness of the gold sand varnish coating is less than the thickness of the printed film layer, the thickness of the gold sand varnish coating is less than the thickness of the intermediate film layer, and the thickness of the gold sand varnish coating is less than the thickness of the heat-sealing film layer.

[0006] In this type of composite film, a gold sand effect coating is formed by applying a gold sand varnish coating to the printed film layer. Since the gold sand effect coating in this composite film is formed after the gold sand varnish has solidified, the preparation process only requires applying the gold sand varnish to the printed film layer; no adhesives are needed for bonding, and no curing is required. This simplifies the preparation process and reduces the likelihood of blistering or cracking. Furthermore, the gold sand varnish coating can be applied strategically according to the selected pattern to achieve a localized gold sand effect. Different matte varnishes (with varying particle sizes) and pearlescent inks can be used to achieve different tactile and visual sensations of gold sand.

[0007] In summary, this gold sand effect composite film achieves the gold sand effect by directly applying gold sand varnish to the printed film layer. The preparation process is simpler, requires no adhesive, is less prone to bubbling and cracking, and can form a gold sand effect coating in specific locations as needed.

[0008] Specifically, in this type of composite film, the gold sand varnish can be the gold sand varnish disclosed in patent publication CN119371886A.

[0009] Optionally, the heat-sealing film layer includes a PP film layer or a PE film layer.

[0010] The use of PP or PE film layers is to ensure that the entire composite film has good heat-sealing strength after heat sealing.

[0011] Optionally, the printed film layer includes an OPP film layer or a PET film layer.

[0012] Optionally, the intermediate film layer may include an aluminized OPP film layer, an aluminized PET film layer, or a nylon film layer.

[0013] Using an aluminized OPP film layer, an aluminized PET film layer, or a nylon film layer as the intermediate film layer can ensure that the entire composite film has good barrier properties and can be used as a film material for making packaging bags.

[0014] Optionally, the thickness of the gold sand varnish coating is 3 micrometers to 15 micrometers.

[0015] Optionally, the thickness of the printed film layer is 15 micrometers to 25 micrometers.

[0016] Optionally, the thickness of the intermediate film layer is 12 micrometers to 30 micrometers.

[0017] Optionally, the thickness of the heat-sealing film layer is 40 micrometers to 150 micrometers.

[0018] The beneficial effects of this utility model are: by directly applying gold sand varnish to the printed film layer to form a gold sand effect, the preparation process is simpler, no adhesive is needed, and it is less likely to bulge or crack. Moreover, a gold sand effect coating can be formed in a specific location as needed. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a simplified structural diagram of a printed gold sand effect composite film;

[0021] Figure 2 This is a schematic diagram showing the state of the printed gold sand effect composite film in use.

[0022] The figures in the diagram are labeled as follows: 1. Gold sand varnish coating; 2. Printed film layer; 3. Intermediate film layer; 4. Heat-sealing film layer; 5. Container. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0026] As attached Figure 1 and appendix Figure 2 As shown, a printed gold sand effect composite film includes a printed film layer 2, an intermediate film layer 3, and a heat-sealing film layer 4. The printed film layer 2 and the heat-sealing film layer 4 are disposed on both sides of the intermediate film layer 3. The film is characterized by further including a gold sand varnish coating 1, which is disposed on the printed film layer 2. The two sides of the printed film layer 2 are the gold sand varnish coating 1 and the intermediate film layer 3, respectively. The thickness of the gold sand varnish coating 1 is less than the thickness of the printed film layer 2, the thickness of the gold sand varnish coating 1 is less than the thickness of the intermediate film layer 3, and the thickness of the gold sand varnish coating 1 is less than the thickness of the heat-sealing film layer 4.

[0027] In this type of composite film, a gold sand effect coating is formed by applying a gold sand varnish coating 1 to the printed film layer 2. Since the gold sand effect coating in this composite film is formed after the gold sand varnish has solidified, it is only necessary to apply the gold sand varnish to the printed film layer 2 during preparation. No adhesive is needed for bonding, and no curing is required, making the preparation process simpler and less prone to bubbling and cracking. Furthermore, the gold sand varnish coating 1 can be applied in a targeted manner according to the selected pattern to achieve a localized gold sand effect. Different textures and visual sensations of gold sand can be achieved by selecting different matte varnishes (matte particle size) and pearlescent inks.

[0028] Appendix Figure 1 The diagram shows the morphology of this composite membrane, and the attached... Figure 2 The shape shown is a schematic diagram of the composite film covering the container 5.

[0029] In summary, this gold sand effect composite film achieves the gold sand effect by directly applying gold sand varnish to the printed film layer 2. The preparation process is simpler, requires no adhesive, is less prone to bubbling and cracking, and can form a gold sand effect coating in specific locations as needed.

[0030] Specifically, in this type of composite film, the gold sand varnish can be the gold sand varnish disclosed in patent publication CN119371886A.

[0031] Specifically, in this type of composite film, the gold sand varnish can be formulated according to the formula disclosed in Example 3 of patent publication document CN119371886A. That is, the gold sand varnish used in this composite film can be composed of 40 parts of waterborne polyurethane resin, 10-30 parts of waterborne acrylic resin, 10-20 parts of gold sand powder, 10-20 parts of water, 3-5 parts of waterborne polypropylene wax, and 0.5-3 parts of polyether-modified organosilicon surfactant. The particle size of the gold sand powder is 100 μm. The preparation method of the gold sand varnish can be referred to the preparation method disclosed in Example 5 of patent publication document CN119371886A.

[0032] As attached Figure 1 and appendix Figure 2 As shown, the heat-sealing film layer 4 can be, but is not limited to, a PP film layer or a PE film layer.

[0033] The use of PP or PE film layers is to ensure that the entire composite film has good heat-sealing strength after heat sealing.

[0034] As attached Figure 1 and appendix Figure 2 As shown, the printed film layer 2 includes an OPP film layer or a PET film layer.

[0035] As attached Figure 1and appendix Figure 2 As shown, the intermediate film layer 3 includes an aluminum-plated OPP film layer, an aluminum-plated PET film layer, or a nylon film layer.

[0036] The intermediate film layer 3, made of aluminized OPP film, aluminized PET film, or nylon film, ensures that the entire composite film has good barrier properties and can be used as a film material for making packaging bags.

[0037] As attached Figure 1 and appendix Figure 2 As shown, the thickness of the gold sand varnish coating 1 is 3 micrometers to 15 micrometers.

[0038] As attached Figure 1 and appendix Figure 2 As shown, the thickness of the printed film layer 2 is 15 micrometers to 25 micrometers.

[0039] As attached Figure 1 and appendix Figure 2 As shown, the thickness of the intermediate film layer 3 is 12 micrometers to 30 micrometers.

[0040] As attached Figure 1 and appendix Figure 2 As shown, the thickness of the heat-sealing film layer 4 is 40 micrometers to 150 micrometers.

[0041] The above-described embodiments only illustrate some aspects of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A printed gold sand effect composite film, comprising a printed film layer, an intermediate film layer, and a heat-sealing film layer, wherein the printed film layer and the heat-sealing film layer are disposed on both sides of the intermediate film layer, characterized in that, It also includes a gold sand varnish coating, which is disposed on the printed film layer, and the two sides of the printed film layer are the gold sand varnish coating and the intermediate film layer, respectively. The thickness of the gold sand varnish coating is less than the thickness of the printed film layer, the thickness of the gold sand varnish coating is less than the thickness of the intermediate film layer, and the thickness of the gold sand varnish coating is less than the thickness of the heat-sealing film layer.

2. A printed gold sand effect composite film according to claim 1, wherein The heat-sealable film layer includes a PP film layer or a PE film layer.

3. A printed gold sand effect composite film according to claim 1, wherein The printed film layer includes an OPP film layer or a PET film layer.

4. The printed gold sand effect composite film according to claim 1, characterized in that, The intermediate film layer includes an aluminum-plated OPP film layer, an aluminum-plated PET film layer, or a nylon film layer.

5. The printed gold sand effect composite film according to claim 1, wherein, The thickness of the gold sand varnish coating is 3 micrometers to 15 micrometers.

6. The printed gold sand effect composite film according to claim 1, wherein, The thickness of the printed film layer is 15 micrometers to 25 micrometers.

7. The printed gold sand effect composite film according to claim 1, characterized in that, The thickness of the intermediate film layer is 12 micrometers to 30 micrometers.

8. The printed gold sand effect composite film according to claim 1, wherein, The thickness of the heat-sealing film layer is 40 micrometers to 150 micrometers.

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