Crystal mark

Abstract

The utility model discloses a crystal label, and relates to the technical field of labels. The crystal mark comprises a film B and a film A which are sequentially arranged, the film B comprises an epoxy resin bottom coating, a transparent TPU film layer and a water-based bottom coating which are sequentially arranged, the film A comprises a polyurethane adhesive layer and a heavy release type PET release film layer which are sequentially arranged, and the water-based bottom coating is arranged above the polyurethane adhesive layer. According to the crystal mark provided by the utility model, a decoration anti-counterfeiting effect can be achieved through the arrangement of the UV ink pattern layer, and the effects of a waste discharge film and a transfer film can be achieved through the arrangement of the epoxy resin priming coat, the transparent TPU film layer and the water-based priming coat. The whole crystal mark can be firmly attached to rough surfaces of cloth, leather and the like, so that the decoration requirements of materials such as clothes, bags and the like are met.

Description

Technical Field

[0001] This utility model relates to the field of label technology, and in particular to a crystal label. Background Technology

[0002] Crystal labels are decorative labels characterized by high transparency, high gloss, and strong adhesion, and are widely used in electronics, home decoration, and advertising. However, most crystal labels on the market are currently made of pressure-sensitive adhesive. After the pattern is printed by a 3D printer and UV cured, it is transferred to the object to be labeled. It can only be pasted on smooth materials such as metal, ceramics, and plastics, which has certain limitations. It cannot be pasted on rough surfaces such as fabric and leather. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model proposes a crystal label that can be heat-pressed onto rough surfaces such as fabrics and leathers, thereby meeting the decorative needs of clothing, shoes and bags.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A crystal label is provided, comprising a B film and an A film arranged in sequence. The B film includes an epoxy resin base layer, a transparent TPU film layer and a water-based base layer arranged in sequence. The A film includes a polyurethane adhesive layer and a heavy release PET release film layer arranged in sequence. The water-based base layer is disposed on top of the polyurethane adhesive layer.

[0006] Furthermore, a UV ink pattern layer is provided between the water-based primer layer and the polyurethane adhesive layer.

[0007] The UV ink pattern layer is printed by a 3D UV printer, specifically UV printing ink. After UV curing, the UV ink pattern is obtained. The pattern is smooth and bright. The UV ink pattern is a 3D stereoscopic pattern, which plays a good decorative and anti-counterfeiting role. At the same time, it can be easily peeled off from the B film after being transferred to clothing.

[0008] Furthermore, the thickness of the epoxy resin base coating is 1-2 μm.

[0009] The epoxy resin base layer is specifically an epoxy resin-based base coat that can greatly enhance the bonding strength with polyurethane resin (polyurethane adhesive layer). During hot stamping, it can tightly bond with the overflowing hot melt adhesive (polyurethane adhesive layer), meeting the requirements of waste removal film and ensuring that the hot melt adhesive overflowing from the edge of the pattern can be smoothly removed after the second hot stamping. At the same time, it can also remove some of the hot melt adhesive remaining during the transfer of B film.

[0010] Furthermore, the thickness of the transparent TPU film is 50-100 μm.

[0011] Among them, the transparent TPU film layer (TPU: thermoplastic polyurethane elastomer) has excellent mechanical properties, superior high temperature resistance (80℃-120℃) and environmental safety, which can well meet the needs of hot stamping. This layer acts as a carrier film and transfer film. Its soft properties can adhere well when the B film is bonded to the UV ink pattern layer, thereby ensuring that excess hot melt adhesive outside the UV ink pattern coverage is removed during peeling.

[0012] Furthermore, the thickness of the transparent TPU film is 75 μm.

[0013] Furthermore, the thickness of the aqueous primer coating is 1-2 μm.

[0014] Among them, the water-based primer layer is an acrylic water-based primer layer, which can effectively improve the surface energy of the transparent TPU film layer. This allows excess hot melt adhesive (polyurethane adhesive layer) in areas not covered by the UV ink pattern layer to adhere well to the transparent TPU film layer. When the pattern is transferred to clothing and peeled off, the excess hot melt adhesive can be removed, thus meeting the requirement of the transfer film to remove excess adhesive.

[0015] Furthermore, the thickness of the polyurethane adhesive layer is 20-25 μm.

[0016] The polyurethane adhesive layer is coated on the heavy release PET release film layer, which has a certain initial tack and the characteristics of hot melt adhesive, and can be well bonded to the fabric and leather.

[0017] Furthermore, the thickness of the heavy release PET release film layer is 50-75 μm.

[0018] Preferably, the release force of the heavy release PET release film layer is 30-40 gf / in.

[0019] Among them, the release surface of the heavy release PET release film layer can complete the coating of the polyurethane adhesive layer and can be easily peeled off, playing the role of coating the base film and protecting the adhesive surface.

[0020] Furthermore, the A film also includes a light release PET release film layer, which is disposed between the water-based primer layer and the polyurethane adhesive layer.

[0021] Preferably, both the light release PET release film layer and the UV ink pattern layer are disposed on the side of the polyurethane adhesive layer away from the heavy release PET release film layer.

[0022] Among them, the light release PET release film layer can be easily peeled off from the polyurethane adhesive layer, thus protecting the adhesive surface.

[0023] Furthermore, the thickness of the light release PET release film layer is 25-36 μm.

[0024] Preferably, the release force of the light release PET release film layer is 5-10 gf / in.

[0025] Preferably, the method for preparing the crystal marker includes the following steps:

[0026] S1. Apply a polyurethane adhesive layer to the release surface of the heavy release PET release film layer. After drying, attach the polyurethane adhesive layer to the release surface of the light release PET release film layer to obtain film A.

[0027] S2. A water-based primer is coated on the corona-electrode side of the transparent TPU film. After drying in an oven, an epoxy resin primer is coated on the other side of the transparent TPU film away from the water-based primer. After drying in an oven, film B is obtained.

[0028] S3. Peel off the light release PET release film layer of film A, and use a 3D UV printer to print a 3D pattern on the surface of the polyurethane adhesive layer. After UV curing, a UV ink pattern layer is obtained.

[0029] S4. Lay the water-based primer layer of film B onto the UV ink pattern surface of the UV ink pattern layer to obtain the crystal label.

[0030] Preferably, the method of using the crystal label includes the following steps:

[0031] S1. Place the garment to be transferred onto the preheating plate and preheat it at a temperature of 80°C to obtain the pre-made garment;

[0032] S2. After peeling off the heavy release PET release film layer from the crystal label, attach the adhesive side (polyurethane adhesive layer) to the preheated clothing and press the crystal label lightly.

[0033] S3. Peel off the B film of the crystal label that was pasted on the clothing. The UV ink pattern of the UV ink pattern layer will be pasted onto the clothing, while the polyurethane adhesive layer in the blank areas that is not covered by ink will be taken away by the B film. That is, the initial transfer effect is achieved, but the adhesion is not strong at this time and a second heat treatment is required.

[0034] S4. Lay the garment with the initially transferred pattern flat on a table. Cover the pattern surface with the other side of the peeled-off B film (epoxy resin base coating). Use an electric iron for a second heat treatment. The heat treatment temperature is 100-120℃, adjusted appropriately according to the thickness of the B film. Press and hold the iron for 10 seconds, then remove it. Peel off the B film to complete the transfer. After the second heat treatment, the pattern can be firmly attached to the garment. The hot melt adhesive that overflows from the edges of the pattern due to the high temperature will adhere to the B film and be carried away by it. Step S4 utilizes the other side of the B film to remove excess and residual adhesive, making it a dual-purpose film that saves costs and is environmentally friendly.

[0035] This invention provides a crystal label, which offers advantages over existing technologies in the following ways: By setting a UV ink pattern layer, it achieves a decorative and anti-counterfeiting effect; by setting an epoxy resin base coating, a transparent TPU film layer, and a water-based base coating, it functions as a waste removal film and a transfer film. The crystal label can be firmly adhered to rough surfaces such as fabrics and leather, thus meeting the decorative needs of clothing, bags, and other materials. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of the crystal label according to an embodiment of the present invention;

[0038] Figure 2 This is a schematic diagram of the layer structure of the crystal marker according to an embodiment of the present invention;

[0039] Figure 3 This is a schematic diagram of the structure of the B film of the crystal label according to an embodiment of the present invention;

[0040] Figure 4 This is a schematic diagram of the structure of the A film of the crystal mark during the preparation process of this utility model embodiment;

[0041] Explanation of the markings in the image:

[0042] 1-Epoxy resin base coating; 2-Transparent TPU film layer; 3-Water-based base coating; 4-Polyurethane adhesive layer; 5-Heavy release PET release film layer; 6-UV ink pattern layer; 7-Light release PET release film layer. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0044] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0045] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0046] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0047] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] Example

[0049] like Figures 1-4The crystal label shown includes a B film and an A film arranged in sequence. The B film comprises an epoxy resin base layer 1, a transparent TPU film layer 2, and a water-based base layer 3 arranged in sequence. The A film comprises a polyurethane adhesive layer 4 and a heavy-release PET release film layer 5 arranged in sequence. The water-based base layer 3 is positioned above the polyurethane adhesive layer 4. A UV ink pattern layer 6 is also provided between the water-based base layer 3 and the polyurethane adhesive layer 4. The UV ink pattern layer 6 is printed by a 3D UV printer, specifically using UV printing ink. After UV curing, a UV ink pattern is obtained. This pattern is smooth and bright, and as a 3D three-dimensional pattern, it provides excellent decorative and anti-counterfeiting effects. Furthermore, it can be easily peeled off from the B film after being transferred to clothing.

[0050] The thickness of the epoxy resin base coating 1 is 1-2 μm. In this embodiment, the thickness of the epoxy resin base coating 1 is 1.5 μm. Specifically, the epoxy resin base coating 1 is an epoxy resin-based primer layer, which can greatly improve the bonding force with polyurethane resin (polyurethane adhesive layer 4). During hot stamping, it can tightly bond with the overflowing hot melt adhesive (polyurethane adhesive layer 4), meeting the requirements of waste removal film. This ensures that the hot melt adhesive overflowing from the edge of the pattern can be smoothly removed after the second hot stamping, and it can also remove some of the hot melt adhesive remaining during the transfer of B film.

[0051] The thickness of the transparent TPU film layer 2 is 50-100 μm. In this embodiment, the thickness of the transparent TPU film layer 2 is 75 μm. The transparent TPU film layer 2 (TPU: thermoplastic polyurethane elastomer) possesses excellent mechanical properties, superior high-temperature resistance (80℃-120℃), and environmental safety, effectively meeting the requirements of hot stamping. This layer acts as both a carrier film and a transfer film. Its soft properties allow for excellent adhesion between the B film and the UV ink pattern layer 6, ensuring that excess hot melt adhesive outside the UV ink pattern coverage is removed during peeling.

[0052] The thickness of the water-based primer layer 3 is 1-2 μm. In this embodiment, the thickness of the water-based primer layer 3 is 1.5 μm. The water-based primer layer 3 is an acrylic water-based primer layer 3, which can effectively increase the surface energy of the transparent TPU film layer 2. This allows excess hot melt adhesive (polyurethane adhesive layer 4) in areas not covered by the UV ink pattern layer 6 to adhere well to the transparent TPU film layer 2. When the pattern is transferred to clothing and peeled off, the excess hot melt adhesive can be removed, meeting the requirement of the transfer film removing excess adhesive.

[0053] The thickness of the polyurethane adhesive layer 4 is 20-25 μm. In this embodiment, the thickness of the polyurethane adhesive layer 4 is 20 μm. The polyurethane adhesive layer 4 is coated on the heavy-release PET release film layer 5, possessing a certain initial tack and the characteristics of hot melt adhesive, allowing it to adhere well to fabrics and leather. The thickness of the heavy-release PET release film layer 5 is 50-75 μm, and the release force is 30-40 gf / in. In this embodiment, the thickness of the heavy-release PET release film layer 5 is 60 μm, and the release force is 35 gf / in. The release surface of the heavy-release PET release film layer 5 allows for the coating of the polyurethane adhesive layer 4 and facilitates easy peeling, serving both as a base film and a protective adhesive surface.

[0054] The A-film further includes a light release PET release film layer 7, which is disposed between the water-based primer layer 3 and the polyurethane adhesive layer 4. In this embodiment, both the light release PET release film layer 7 and the UV ink pattern layer 6 are disposed on the side of the polyurethane adhesive layer 4 away from the heavy release PET release film layer 5. The light release PET release film layer 7 can be easily peeled off from the polyurethane adhesive layer 4, thus protecting the adhesive surface. The thickness of the light release PET release film layer 7 is 25-36 μm, and the release force is 5-10 gf / in. In this embodiment, the thickness of the light release PET release film layer 7 is 30 μm, and the release force is 8 gf / in.

[0055] The method for preparing the crystal marker includes the following steps:

[0056] S1. Apply polyurethane adhesive layer 4 to the release surface of heavy release PET release film layer 5. After drying, bond polyurethane adhesive layer 4 to the release surface of light release PET release film layer 7 to obtain film A.

[0057] S2. A water-based primer coating 3 is coated on the corona-electrode side of the transparent TPU film layer 2. After drying in an oven, an epoxy resin primer coating 1 is coated on the other side of the transparent TPU film layer 2 away from the water-based primer coating 3. After drying in an oven, film B is obtained.

[0058] S3. Peel off the light release PET release film layer 7 of film A, and print a 3D pattern on the surface of polyurethane adhesive layer 4 using a 3D UV printer. After UV curing, a UV ink pattern layer 6 is obtained.

[0059] S4. Lay the water-based primer layer 3 of film B onto the UV ink pattern surface of UV ink pattern layer 6 to obtain the crystal label.

[0060] The method of using the crystal label includes the following steps:

[0061] S1. Place the garment to be transferred onto the preheating plate and preheat it at a temperature of 80°C to obtain the pre-made garment;

[0062] S2. After peeling off the heavy release PET release film layer 5 from the crystal label, attach the adhesive surface (polyurethane adhesive layer 4) to the preheated clothing and press the crystal label lightly.

[0063] S3. Peel off the B film of the crystal label that was pasted on the clothing. The UV ink pattern of the UV ink pattern layer 6 will be pasted onto the clothing, while the polyurethane adhesive layer 4 in the blank areas that are not covered by ink will be taken away by the B film. That is, the initial transfer effect is achieved, but the adhesion is not strong at this time and a second heat treatment is required.

[0064] S4. Lay the garment with the initially transferred pattern flat on a table. Cover the pattern surface with the other side of the peeled-off B film (epoxy resin base coating 1). Use an electric iron for a second heat treatment at 110℃. Press and hold the iron for 10 seconds, then remove it. Peel off the B film to complete the transfer. After the second heat treatment, the pattern is firmly attached to the garment. The hot melt adhesive that overflows from the edges of the pattern due to the high temperature will adhere to the B film and be carried away by it. Step S4 utilizes the other side of the B film to remove excess and residual adhesive, making it a dual-purpose film that saves costs and is environmentally friendly.

[0065] In summary, the crystal label of this invention achieves decorative and anti-counterfeiting effects through the UV ink pattern layer, and functions as a waste removal film and transfer film through the epoxy resin base coating, transparent TPU film layer, and water-based base coating. The crystal label as a whole can firmly adhere to rough surfaces such as fabrics and leather, thus meeting the decorative needs of clothing, bags, and other materials.

[0066] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A crystal label, characterized in that, It includes a B film and an A film arranged in sequence. The B film includes an epoxy resin base layer, a transparent TPU film layer and a water-based base layer arranged in sequence. The A film includes a polyurethane adhesive layer and a heavy release PET release film layer arranged in sequence. The water-based base layer is disposed on top of the polyurethane adhesive layer.

2. The crystal label as described in claim 1, characterized in that, A UV ink pattern layer is also provided between the water-based primer layer and the polyurethane adhesive layer.

3. The crystal label as described in claim 2, characterized in that, The thickness of the epoxy resin primer coating is 1-2 μm.

4. The crystal label as described in claim 3, characterized in that, The thickness of the transparent TPU film is 50-100μm.

5. The crystal label as described in claim 4, characterized in that, The thickness of the transparent TPU film is 75 μm.

6. The crystal label as described in claim 5, characterized in that, The thickness of the water-based primer coating is 1-2 μm.

7. The crystal label as described in claim 6, characterized in that, The thickness of the polyurethane adhesive layer is 20-25 μm.

8. The crystal label as described in claim 7, characterized in that, The thickness of the heavy release PET release film layer is 50-75μm.

9. The crystal label as described in claim 1, characterized in that, The A-film also includes a light release PET release film layer, which is disposed between the water-based primer layer and the polyurethane adhesive layer.

10. The crystal label as described in claim 9, characterized in that, The thickness of the light release PET release film layer is 25-36 μm.

Images