Long-acting antistatic high-brightness glitter powder

Abstract

The long-acting antistatic high-brightness glitter powder is characterized by being composed of a base material layer, a lower functional coating, an upper functional coating, a lower aluminum plating layer and an upper aluminum plating layer, and the lower functional coating, the lower aluminum plating layer, the base material layer, the upper aluminum plating layer and the upper functional coating are sequentially arranged from bottom to top; the thickness of each of the lower functional coating and the upper functional coating is 0.8-1.0 mu m; and the upper surface and the lower surface of the base material layer are smooth surfaces. According to the anti-static glitter powder, generation and accumulation of static electricity on the surface of the glitter powder can be effectively avoided or reduced, so that the anti-static value of the glitter powder is small (106-108 omega), and the anti-static glitter powder has a good anti-static effect; moreover, the lower aluminum-plated layer and the upper aluminum-plated layer with conductivity are not easy to damage in the use process, so that the glitter powder can keep a good antistatic effect for a long time. As the lower surface and the upper surface of the base material layer are both provided with the aluminum-plated layers, the brightness of the aluminum-plated layers cannot be influenced by the shielding property of the base material layer, the double-sided uniformity of the brightness of the aluminum-plated layers is realized, and the overall brightness of the glitter powder is higher.

Description

Technical Field

[0001] The utility model relates to a laminated product, in particular to a long-lasting antistatic high-brightness glitter powder. Background Art

[0002] Glitter powder is also called flash powder, and the one with a larger particle size is also called glitter flake (or flash flake), which is usually made by precisely cutting a film material with a very high brightness and a metal coating, and is mainly used for surface decoration of articles.

[0003] Ordinary glitter powder uses a PET transparent film as the base material, and then uses intaglio printing technology to transfer colored coatings on both sides or one side of it to form a color layer, making it have various colors; or, other functional coatings (such as chemical resistance coatings, environmental protection coatings or physical and optical coatings, etc.) are set on both sides of the PET transparent film. However, after ordinary glitter powder is rubbed, static electricity will be generated and accumulated on its surface, resulting in a large antistatic value (≧10^12Ω) of the glitter powder itself, which often causes troubles in the production and use of products. The specific manifestations are as follows: (1) During the production process of ordinary glitter powder, due to excessive static electricity, it will be adsorbed in the production utensils, increasing the difficulty and time for workers to clean the production utensils after production, and it is easy to cause subsequent production pollution due to incomplete cleaning of the production utensils; (2) When storing and using glitter powder, the glitter powder will agglomerate due to static electricity, causing troubles to the use of the customer group.

[0004] In a prior patent with the publication number of CN217492687U and the patent name of "a glitter powder with low surface static electricity" disclosed by the applicant, by coating a silica powder layer on the surface of the glitter powder body, the silica powder adheres to the surface of the glitter powder body, which can effectively reduce the direct friction between the surfaces of the glitter powder, avoid or reduce the generation and accumulation of surface static electricity, and make the antistatic value of the glitter powder itself small, basically solving the above problems. However, during the production, after the production of the glitter powder body is completed, the following additional processing procedures are required: namely, adding the glitter powder body and silica powder to a fully stainless steel closed mixer in a certain proportion, and after stirring for a certain period of time, the silica powder can be evenly and fully mixed with the glitter powder body to form a silica powder layer on the surface of the glitter powder body. Moreover, although the addition of silica powder has an obvious antistatic effect, because the surface silica powder is semi-transparent, it will affect the overall brightness of the glitter powder, or the surface silica powder of the glitter powder will fall off after a long time, and its antistatic effect will weaken. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a long-lasting antistatic high-brightness glitter powder, which can effectively avoid or reduce the generation and accumulation of static electricity on its surface, has a good antistatic effect and can be maintained for a long time, and the overall brightness of the glitter powder is high. The technical solution adopted is as follows:

[0006] A long-lasting antistatic high-gloss glitter powder, characterized in that it consists of a substrate layer, a lower functional coating, an upper functional coating, a lower aluminum-plated layer and an upper aluminum-plated layer, wherein the lower functional coating, the lower aluminum-plated layer, the substrate layer, the upper aluminum-plated layer and the upper functional coating are arranged in sequence from bottom to top; the thickness of the lower functional coating and the upper functional coating are both 0.8-1.0 μm; the substrate layer is a PET transparent film, a PVC transparent film or an OPP transparent film, and the upper surface and the lower surface of the substrate layer are both smooth surfaces.

[0007] In the above-mentioned long-lasting antistatic high-gloss glitter powder, the lower aluminum-plated layer and the upper aluminum-plated layer with conductive properties are respectively arranged on the lower surface and the upper surface of the substrate layer, and the lower functional coating and the upper functional coating are set with a relatively small thickness of 0.8-1.0μm (the thickness of the lower functional coating and the upper functional coating in ordinary glitter powder is usually 1.2-1.6μm), so that the static electricity generated by the direct friction between the surfaces of the glitter powder can be transmitted to the lower aluminum-plated layer and the upper aluminum-plated layer through the lower functional coating and the upper functional coating, and the static electricity is eliminated through the lower aluminum-plated layer and the upper aluminum-plated layer, thereby effectively avoiding or reducing the generation and accumulation of static electricity on the surface of the glitter powder, and making the antistatic value of the glitter powder itself small (10^6-10^8Ω). The upper and lower surfaces of the substrate layer are both smooth surfaces, which are conducive to forming upper and lower aluminum-plated layers with uniform thickness, ensuring that the upper and lower aluminum-plated layers have better conductive properties.

[0008] The lower aluminum coating layer and the upper aluminum coating layer are usually formed on the lower surface and the upper surface of the substrate layer (such as a PET transparent film) by vacuum evaporation. For example, a roll-to-roll vacuum evaporator is used to evenly coat the metal aluminum on the upper surface and the lower surface of the substrate.

[0009] In a preferred embodiment, the thickness of the lower aluminum coating layer and the upper aluminum coating layer is 400-500Å (angstroms).

[0010] In a preferred embodiment, the lower functional coating is a lower color layer, and the upper functional coating is an upper color layer. The lower color layer and the upper color layer can be formed by printing or coating conventional coatings with added pigments or dyes. The color of the glitter powder is determined by the upper color layer and the lower color layer, and one or more colors can be used as needed.

[0011] The lower functional coating and the upper functional coating may also be chemical-resistant coatings, environmentally friendly coatings, and physical-optical coatings, and may be specifically configured according to customer needs to form different products.

[0012] The utility model can effectively avoid or reduce the generation and accumulation of static electricity on the surface of glitter powder by respectively arranging a lower aluminum plating layer and an upper aluminum plating layer with conductive properties on the lower surface and the upper surface of the substrate layer, and using a lower functional coating and an upper functional coating with a relatively small thickness, so that the antistatic value of the glitter powder itself is small (10^6-10^8Ω), and has a good antistatic effect; moreover, the lower aluminum plating layer and the upper aluminum plating layer with conductive properties in the utility model are not easily damaged during use, so the glitter powder can maintain a good antistatic effect for a long time. Since there are aluminum plating layers on the lower surface and the upper surface of the substrate layer, the brightness of the aluminum plating layer will not be affected by the shielding property of the substrate layer, so that the brightness of the aluminum plating is uniform on both sides, and the overall brightness of the glitter powder is relatively high.

[0013] In addition, although the utility model processes the upper and lower aluminum layers, which will increase its cost to a certain extent, the value of the glitter powder itself accounts for a relatively low proportion (no more than 2%), and the manufacturing process is simpler than the prior patent with publication number CN217492687U. Compared with the prior patent with publication number CN217492687U, since there is no silicon dioxide powder layer on the surface of the glitter powder, the adverse effect of the silicon dioxide powder on the brightness of the overall glitter powder can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a preferred embodiment 1 of the utility model;

[0015] Figure 2 It is a structural schematic diagram of comparative example 1;

[0016] Figure 3 It is a structural schematic diagram of Comparative Example 2; DETAILED DESCRIPTION

[0017] Embodiment 1, as Figure 1 As shown, the long-lasting antistatic high-gloss glitter powder consists of a substrate layer 11, a lower functional coating 12, an upper functional coating 13, a lower aluminum-plated layer 14 and an upper aluminum-plated layer 15, and the lower functional coating 12, the lower aluminum-plated layer 14, the substrate layer 11, the upper aluminum-plated layer 15 and the upper functional coating 13 are arranged in sequence from bottom to top; the thickness of the lower functional coating 12 and the upper functional coating 13 are both 0.9 μm.

[0018] The substrate layer 11 is a PET transparent film, and both the upper surface and the lower surface of the substrate layer 11 are smooth surfaces. The lower functional coating layer 12 is a lower color layer, and the upper functional coating layer 13 is an upper color layer.

[0019] The thickness of the lower aluminum coating layer 14 and the upper aluminum coating layer 15 are both 500 Å. The lower aluminum coating layer 14 and the upper aluminum coating layer 15 are usually formed on the lower surface and the upper surface of the substrate layer 11 (such as a PET transparent film) by vacuum evaporation. For example, a roll-to-roll vacuum evaporator is used to uniformly coat the metal aluminum on the upper surface and the lower surface of the substrate.

[0020] Example 2: The difference between Example 2 and Example 1 is that the thickness of the lower functional coating 12 and the upper functional coating 13 are both 1.0 μm. The remaining features of Example 2 are the same as those of Example 1.

[0021] Comparative Example 1: Figure 2 As shown, the glitter powder of Comparative Example 1 consists of a lower functional coating A22, a lower aluminum coating A24, a substrate layer A21, an upper aluminum coating A25 and an upper functional coating A23 arranged in sequence from bottom to top; the thickness of the lower functional coating A22 and the upper functional coating A23 are both 1.2 μm (the thickness of the lower functional coating and the upper functional coating in Comparative Example 1 is greater than that in Example 1).

[0022] The substrate layer A 21 is a PET transparent film, and the upper and lower surfaces of the substrate layer A 21 are both smooth surfaces. The lower functional coating A 22 is a lower color layer, and the upper functional coating A 23 is an upper color layer. The thickness of the lower aluminum plating layer A 24 and the upper aluminum plating layer A 25 are both 500Å.

[0023] Comparative Example 2: Figure 3 As shown, the glitter powder of Comparative Example 2 consists of a lower functional coating B32, a lower aluminum coating B34, a substrate layer B31 and an upper functional coating B33 arranged in sequence from bottom to top (Comparative Example 2 lacks the upper aluminum coating layer compared to Example 1); the thickness of the lower functional coating B32 and the upper functional coating B33 are both 0.9 μm (the thickness of the lower functional coating and the upper functional coating in Comparative Example 2 are the same as those in Example 1).

[0024] The substrate layer B 31 is a PET transparent film, and both the upper and lower surfaces of the substrate layer B 31 are smooth surfaces. The lower functional coating layer B 32 is a lower color layer, and the upper functional coating layer B 33 is an upper color layer. The thickness of the lower aluminum plating layer B 34 is 500Å.

[0025] The antistatic values ​​of the glitter powder surfaces of Example 1, Comparative Example 1, and Comparative Example 2 were measured and compared (5 samples were taken for each). As can be seen from the table, the antistatic value of the glitter powder surface of Example 1 is much lower than the antistatic values ​​of the glitter powder surfaces of Comparative Example 1 and Comparative Example 2.

[0026] Antistatic value on the surface of glitter powder in Example 1 (Ω) Antistatic value on the surface of glitter powder in Example 2 (Ω) Antistatic value on the surface of glitter powder in Comparative Example 1 (Ω) Antistatic value on the surface of glitter powder in Comparative Example 2 (Ω) Sample 1 10^7Ω 10^7Ω 10^10Ω 10^10Ω Sample 2 10^6Ω 10^8Ω 10^10Ω 10^9Ω Sample 3 10^7Ω 10^7Ω 10^9Ω 10^9Ω Sample 4 10^6Ω 10^7Ω 10^9Ω 10^10Ω Sample 5 10^6Ω 10^8Ω 10^9Ω 10^10Ω

[0027] According to the test data in the above table, it can be seen that: (1) In Example 1, a lower aluminum coating layer and an upper aluminum coating layer are respectively arranged on the lower surface and the upper surface of the substrate layer. Compared with Comparative Example 2 in which only a lower aluminum coating layer is arranged, the antistatic value of the glitter powder surface is significantly reduced; (2) Compared with Comparative Example 1, in Example 1, the thickness of the lower functional coating and the upper functional coating is reduced, which can significantly reduce the antistatic value of the glitter powder surface; in Example 2, the thickness of the lower functional coating and the upper functional coating is slightly greater than that of Example 1, and the antistatic value of the glitter powder surface is correspondingly increased.

Claims

1. A long-lasting antistatic high-gloss glitter powder, characterized in that The invention is composed of a substrate layer, a lower functional coating, an upper functional coating, a lower aluminum-plated layer and an upper aluminum-plated layer, wherein the lower functional coating, the lower aluminum-plated layer, the substrate layer, the upper aluminum-plated layer and the upper functional coating are arranged in sequence from bottom to top; the thickness of the lower functional coating and the upper functional coating are both 0.8-1.0 μm; the substrate layer is a PET transparent film, a PVC transparent film or an OPP transparent film, and the upper surface and the lower surface of the substrate layer are both smooth surfaces.

2. The long-lasting antistatic high-gloss glitter powder according to claim 1 is characterized by: The thickness of the lower aluminum coating layer and the upper aluminum coating layer are both 400-500Å.

3. The long-lasting antistatic high-gloss glitter powder according to claim 1 or 2, characterized in that: The lower functional coating is a lower color layer, and the upper functional coating is an upper color layer.

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