CN209813474U - Metallic hot stamping film and number plate hot stamping label - Google Patents

Abstract

The utility model discloses a metallic color hot stamping film and a number plate hot stamping label. The metallic color hot stamping film comprises a base layer, a release layer, a protective layer, a metal layer and an adhesive layer which are sequentially stacked, and also includes a connecting layer, the connecting layer is arranged between the metal layer and the adhesive layer, and the connecting layer is cured resin containing a coupling agent. The metal color hot stamping film adds a connecting layer between the coating and the hot melt adhesive layer, thereby improving the bonding fastness between the coating and the hot melt adhesive layer, and at the same time improving its wear resistance to a certain extent, even if After a long time of use, the surface of the hot stamping film is not easy to wear, fall off or completely peel off.

Description

Metallic hot stamping film and number plate hot stamping label

technical field

The utility model relates to a hot stamping film, in particular to a metallic hot stamping film and a number plate hot stamping label.

Background technique

Hot stamping film refers to the technology of combining laser holographic anodized aluminum film with hot stamping technology to form colorful laser holographic marks and anti-counterfeiting marks of three-dimensional patterns on the surface of printed matter. This technology can add laser encryption and anti-tampering layer on the back, which is used for anti-counterfeiting of documents, cards, bills, trademarks, etc.

Metallic hot stamping film can make general resin materials and plastic parts have a metallic texture, and can also add various holographic anti-counterfeiting marks to the metallic hot stamping film. Therefore, in many fields, considering the cost and service life, etc. The reason is that metal materials have been gradually replaced by resin materials and plastic parts that are hot stamped with metallic hot stamping films.

CN205439621U "Metallic Hot Stamping Film" discloses a metallic hot stamping film with a base layer, a release layer, a protective layer, a coating and a hot melt adhesive layer, and the protective layer is embossed with a holographic anti-counterfeiting micro-nano film with holographic anti-counterfeiting information The mechanism makes the metallic hot stamping film have the technical effect of holographic anti-counterfeiting. When performing coating operations on the application object, the metallic hot stamping film is directly spread on the application object, and after heating and pressing the metallic hot stamping film (that is, hot stamping), the metallic hot stamping film can be melted through hot melting. The role of the adhesive layer is to fit on the application object, and then the base layer is peeled off through the function of the release layer, and the release layer, transparent protective layer, coating and hot melt adhesive layer are left on the application object (that is, transferred to the application object ).

However, since the plating layer is a metal layer with a dense structure, its bonding fastness to the adhesive layer is lacking. After a long period of use, the hot stamping film is prone to surface wear, peeling off or even complete peeling off, thereby affecting the use effect. In addition, the adhesive layer of the metallic hot stamping film is easily peeled off, which makes the holographic anti-counterfeiting structure of the protective layer easy to be pirated, affecting its anti-counterfeiting effect.

Utility model content

One of the purposes of the utility model is to overcome the deficiencies of the prior art, solve the problems in the prior art, and provide a metallic hot stamping film and a number plate hot stamping label. A connecting layer is added between the hot-melt adhesive layers, thereby improving the bonding fastness between the coating and the hot-melt adhesive layer, and at the same time improving its wear resistance to a certain extent. Even if it is used for a long time, the surface of the hot stamping film will not Tends to fray, flake off, or completely peel off.

The technical scheme of the utility model is: a metallic hot stamping film, which includes a base layer, a release layer, a protective layer, a metal layer and an adhesive layer that are sequentially stacked, and also includes a connecting layer, and the connecting layer is arranged on the Between the metal layer and the adhesive layer, the connecting layer is cured resin containing a coupling agent.

Preferably, the connection layer is disposed on the metal layer by roll-to-roll nano-coating.

Preferably, the connecting layer is coated on the surface of the corona-treated metal layer.

Preferably, an anti-counterfeit information structure is embossed on the protective layer, and the anti-counterfeit information structure includes a plurality of concave-convex micro-nano structures arranged according to design patterns or characters.

Preferably, the cross-section of the micro-nano structure is arc-shaped or polygonal.

Preferably, it also includes a performance layer arranged between the release layer and the protective layer, the performance layer is composed of one or more laminated layers of wear-resistant layer, corrosion-resistant layer or waterproof layer, so The performance layer is a transparent resin layer.

The technical solution of the utility model also includes: a number plate hot stamping label, which is formed by hot stamping the metallic color hot stamping film provided by the above technical solution onto the vehicle number plate.

Advantage of the utility model:

1. The metal color hot stamping film of the present invention adds a connecting layer between the coating and the hot melt adhesive layer, thereby improving the bonding fastness between the coating and the hot melt adhesive layer, and at the same time improving its Abrasion resistance, even if it is used for a long time, the surface of the hot stamping film is not easy to wear, fall off or completely peel off.

2. The metallic hot stamping film of the present invention can emboss an anti-counterfeiting information structure on the protective layer, and the anti-counterfeiting information structure can provide anti-counterfeiting information with diverse pictures and texts or diverse visual effects, and has anti-counterfeiting effect. Further, the connection layer also has the function of anti-piracy: the metal layer has a concave-convex structure consistent with the anti-counterfeiting information structure of the protective layer, the connection layer covers the metal layer, and will fill up the concave-convex structure on the metal layer, the connection layer and the metal The layers are tightly connected, so the pirates will inevitably destroy the concave-convex micro-junction on the metal layer when removing the connecting layer, so it is difficult for the pirates to obtain a complete anti-counterfeiting information structure with anti-counterfeiting effect.

3. The metal color hot stamping film of the present invention can also add a performance layer between the release layer and the protective layer. After the metal color hot stamping film is hot stamped on the application object, the performance layer is the outermost layer, and the performance layer can be increased Other properties such as wear resistance of the hot stamping film after hot stamping.

4. A number plate hot stamping label of the present invention, which is applied to the surface of the vehicle number plate, has a metallic texture, and can effectively prevent counterfeiting and prevent malicious imitation.

Description of drawings

Fig. 1 is a structural sectional view of a metallic hot stamping film provided by the first embodiment of the present invention.

Fig. 2 is a structural sectional view of a preferred embodiment of the metallic hot stamping film provided by the first embodiment of the present invention.

Fig. 3 is a cross-sectional view of the structure of the metallic hot stamping film provided by the second embodiment of the present invention.

Detailed ways

Below in conjunction with accompanying drawing 1-3 and embodiment, technical solution of the utility model is described in detail, wherein: 1, base layer; 2, release layer; 3, protective layer; 31, micronano structure; 4, metal layer; 5, connection 6. Adhesive layer; 7. Performance layer.

first embodiment

Fig. 1 is a structural sectional view of the first embodiment of the metallic hot stamping film provided by the present invention. As shown in Figure 1, the metallic color hot stamping film includes a base layer 1, a release layer 2, a protective layer 3, a metal layer 4, a connecting layer 5, and an adhesive layer 6, etc. The following will describe them in detail one by one.

The base layer 1 is a supporting material, and its main function is to support other coatings attached to it, so as to facilitate continuous hot stamping during processing. It has properties such as tensile resistance and instantaneous high temperature resistance. Preferably PET or PP material is used. After hot stamping, the substrate layer is peeled off from other layers such as the protective layer.

The release layer 2 has good peeling performance, and its main function is to quickly separate the protective layer and other layers from the base layer after hot stamping, so that other layers are transferred and bonded to the surface of the hot stamped cup. The release layer 2 is generally coated with silicone resin, preferably oxidized polyethylene wax, paraffin wax, montan wax, carnauba wax and other emulsions, and the coating thickness is 0.01-0.1 microns.

The protective layer 3 is a transparent protective layer, which is used to protect the metal layer hot stamped on the surface of the article from oxidation. The protective layer 3 is generally made of at least one resin with transparency and heat resistance, and corresponding additives and fillers production.

The main function of the metal layer 4 is to reflect light, so that the hot stamping film can present a metallic color. Generally, vacuum coating technology is used to make a metal layer on the surface of the protective layer. The metal layer is preferably metallic chromium or aluminum.

The adhesive layer 6 is a hot-melt adhesive layer, which is attached to the part to be hot stamped, attached to the part to be hot stamped by hot stamping, the release layer is peeled off, and the protective layer and metal layer are transferred to the part to be hot stamped. The hot stamped part can be the surface of various packages.

The utility model adds a connection layer 5 between the metal layer 4 and the adhesive layer 6, which is used to strengthen the connection between the metal layer 4 and the hot melt adhesive layer 6 made of metal materials, thereby improving the coating layer and the hot melt adhesive layer. The bonding fastness between them, and at the same time improve its wear resistance to a certain extent. Even if it is used for a long time, the surface of the hot stamping film is not easy to wear, fall off or completely peel off. Preferably, the connecting layer 5 is cured from a resin containing a coupling agent, and the bonding fastness between the metal layer and the adhesive layer is enhanced through the molecular bonding of the coupling agent. In plastic compounding, a coupling agent is a plastic additive that can improve the interfacial properties of synthetic resins and inorganic fillers or reinforcing materials. Its dosage is generally 0.5-2% of the filler dosage. The coupling agent generally consists of two parts: one part is an inorganic group, which can interact with inorganic fillers or reinforcing materials; the other part is an organic group, which can interact with synthetic resins. The resin of the present utility model is epoxy resin, and the coupling agent can be modified siloxane and/or modified acrylate, more specifically, the coupling agent can be phosphoric acid ester modified acrylate and/or epoxy modified non-toxic siloxane. Preferably, the connection layer further includes an adhesion promoter.

As shown in Figure 2, in a preferred implementation of the first embodiment, an anti-counterfeiting information structure is embossed on the protective layer 3, and the anti-counterfeiting information structure is composed of a plurality of concave-convex micro-nano structures 31 arranged according to design patterns or characters constitute. The micro-nano structure 31 can be fabricated by roll-to-roll nanoimprinting technology. The micro-nano structure 31 can provide anti-counterfeiting information with diverse graphics or visual effects, and has an anti-counterfeiting effect. The cross-section of the micro-nano structure may be arc-shaped or polygonal. The metal layer 4 is sprayed on the surface of the anti-counterfeiting information structure by vacuum coating technology, and its structure is consistent with the anti-counterfeiting information structure. As shown in FIG. 2 , the metal layer 4 has a concave-convex structure consistent with the anti-counterfeiting information structure. In addition, for specific information about the anti-counterfeiting information structure, please refer to the anti-counterfeiting microstructure provided on the card in the Chinese invention patent CN200710135197.X. Of course, it can also be other anti-counterfeit microstructures. This anti-counterfeit micro-nano structure is a known technology, and will not be introduced in detail here.

It should be noted that, in the above-mentioned preferred embodiment, the connection layer also has the function of anti-piracy: the metal layer has a concave-convex structure consistent with the structure of the anti-counterfeiting information, and the connection layer covers the metal layer, and will fill up the concave-convex structure on the metal layer structure, the connection layer and the metal layer are tightly connected, so when the pirate removes the connection layer, the concave-convex micro-junction on the metal layer is bound to be destroyed, so it is difficult for the pirate to obtain a complete anti-counterfeiting information structure with anti-counterfeiting effect.

The utility model also provides the preparation method of the first embodiment of the above-mentioned metallic hot stamping film:

Step 1: Provide a base layer, and apply a water-soluble or oil-soluble release layer on the base layer using roll-to-roll nano-coating technology to form a release layer.

Step 2: Use roll-to-roll nano-coating technology to coat transparent resin on the release layer, and form a protective layer after curing.

Step 3: Coating metal chromium or aluminum on the protective layer by vacuum coating technology to form a metal layer.

Step 4: Coating a resin containing a coupling agent on the metal layer by roll-to-roll nano-coating technology, and curing to form a connection layer.

Step 5: Coating hot melt adhesive on the connection layer with roll-to-roll nano-coating technology, and forming an adhesive layer after curing.

It should be noted that there are many methods for making the protective layer in step 2. It is preferable to coat the transparent resin on the release layer, and then use the roll-to-roll nanoimprinting technology to imprint the anti-counterfeiting information structure on the transparent resin, and finally solidify. A protective layer comprising a structure of anti-counterfeit information is formed.

In addition, on the metal layer formed in step 3, corona treatment can be performed first, and then the coupling agent is coated on the surface of the metal layer and solidified to form a connection layer, which can further strengthen the bonding fastness between the metal layer and the connection layer.

second embodiment

Fig. 3 is a structural sectional view of the second embodiment of the metallic hot stamping film provided by the present invention. As shown in Figure 3, on the basis of the first embodiment, the metallic hot stamping film adds a performance layer 7 between the release layer 2 and the protective layer 3, that is, the metallic hot stamping film of the second embodiment The film includes a base layer 1, a release layer 2, a performance layer 7, a protective layer 3, a metal layer 4, a connection layer 5, and an adhesive layer 6, which are stacked sequentially from bottom to top. It has been introduced in detail in the first embodiment, and only the performance layer 7 will be introduced in detail below.

The performance layer 7 is a transparent resin layer, which is arranged between the release layer 2 and the protective layer 3. After the metallic hot stamping film is hot stamped on the application object, the performance layer 7 is located on the outermost surface of the hot stamping film after hot stamping. The performance layer 7 may be one or several laminated layers of wear-resistant layer, corrosion-resistant layer or waterproof layer formed after coating with polymer materials. The wear-resistant layer can be coated with silicone resin, which can improve the strength and scratch resistance of the surface of the hot stamping film after coating. The corrosion-resistant layer can be coated with polyethylene or epoxy resin, which can improve the corrosion resistance and acid and alkali resistance of the surface of the hot stamping film after coating. The waterproof layer can be coated with polyurethane, which can form a complete waterproof layer on the surface of the hot stamping film after coating. It is especially suitable for outdoor and humid environments (such as used as a hot stamping label for a vehicle number plate), which can greatly extend the duration of hot stamping. membrane life.

The utility model also provides the preparation method of the second embodiment of the above-mentioned metallic hot stamping film:

Step 1: Provide a base layer, and apply a water-soluble or oil-soluble release layer on the base layer using roll-to-roll nano-coating technology to form a release layer.

Step 2: Use roll-to-roll nano-coating technology to coat transparent resin on the release layer, and cure to form a performance layer.

Step 3: Use roll-to-roll nano-coating technology to coat transparent resin on the performance layer, and form a protective layer after curing.

Step 4: Coating a metal layer on the protective layer by vacuum coating technology.

Step 5: Coating a resin containing a coupling agent on the metal layer by roll-to-roll nano-coating technology, and curing to form a connection layer.

Step 6: Apply hot melt adhesive on the connection layer by roll-to-roll nano-coating technology, and form an adhesive layer after curing.

The same as the first embodiment, there are many ways to make the protective layer in step 3, preferably coating the transparent resin on the release layer, and then embossing the anti-counterfeiting information structure on the transparent resin using roll-to-roll nanoimprinting technology , and finally cured to form a protective layer including an anti-counterfeiting information structure.

In addition, on the metal layer formed in step 4, corona treatment can be performed first, and then a resin containing a coupling agent can be coated on the surface of the metal layer and cured to form a connection layer, which can further strengthen the bonding fastness between the metal layer and the connection layer.

When hot stamping the metallic hot stamping film provided by the utility model, the adhesive layer 6 is bonded to the hot stamped part (i.e. the application object). With the base layer 1 detached from the other layers of the metallic hot stamping film, the other layers of the metallic hot stamping film are left on the surface of the part to be hot stamped.

The utility model also provides a number plate hot stamping label. The number plate hot stamping label is to stamp the metallic color hot stamping film provided by the utility model on the vehicle number plate, which has a metallic texture and plays a role of decoration. effect. Further, an anti-counterfeiting information structure capable of presenting a special logo effect can be embossed on the protective layer of the metallic hot stamping film, so that the hot stamping film hot stamped on the vehicle number plate has an anti-counterfeiting effect and can prevent malicious counterfeiting.

The above are only preferred embodiments of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure or equivalent process conversion made by using the description of the utility model and the contents of the accompanying drawings, or directly or indirectly used in other related All technical fields are all included in the scope of patent protection of the utility model in the same way.

Claims (7)

1. a metallic hot stamping film, comprising a base layer, a release layer, a protective layer, a metallic layer and an adhesive layer that are stacked successively, and is characterized in that: It also includes a connection layer, the connection layer is arranged between the metal layer and the glue layer, and the connection layer is cured resin containing coupling agent. 2 . The metallic hot stamping film according to claim 1 , wherein the connection layer is disposed on the metal layer by roll-to-roll nano-coating. 3 . 3. The metallic hot stamping film according to claim 2, characterized in that: the connecting layer is coated on the surface of the corona-treated metal layer. 4. The metallic hot stamping film according to claim 1, wherein an anti-counterfeit information structure is embossed on the protective layer, and the anti-counterfeit information structure includes a plurality of concave-convex micro-nano structures arranged according to design patterns or characters . 5. The metallic hot stamping film according to claim 4, characterized in that: the cross-section of the micro-nano structure is arc-shaped or polygonal. 6. The metal color hot stamping film as claimed in claim 1, characterized in that: it also includes a performance layer arranged between the release layer and the protective layer, the performance layer is composed of wear-resistant layer, corrosion-resistant layer or waterproof layer or one or several laminated layers, the performance layer is a transparent resin layer. 7. A number plate hot stamping label, characterized in that: the number plate hot stamping label is a hot stamping film formed by hot stamping the metallic color hot stamping film as claimed in any one of claims 1-6 on the vehicle number plate. printed logo.