CN215397397U

CN215397397U - Easy-to-clean wire drawing color-coated sheet

Info

Publication number: CN215397397U
Application number: CN202121802176.0U
Authority: CN
Inventors: 赵贵平; 谢龙
Original assignee: Shenzhen Huamei Metal Material Technology Co ltd
Current assignee: Shenzhen Huamei Metal Material Technology Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2022-01-04
Anticipated expiration: 2031-08-03

Abstract

The application provides an easy clean wire drawing color-coated sheet includes: the wire drawing device comprises a substrate layer, a wire drawing layer, a first passivation layer, a second passivation layer, a first primer layer, an easy-to-clean finish paint layer and a back paint layer; the surface of the substrate layer is respectively provided with the wire drawing layer and the second passivation layer; the surface of the wire drawing layer is provided with the first passivation layer; the surface of the first passivation layer is provided with the first primer layer; the easy-to-clean finish paint layer is arranged on the surface of the first primer layer; the surface of the second passivation layer is provided with the back paint layer. The easily-cleaned antibacterial color-coated sheet can realize the surface wire drawing effect, has stronger antibacterial performance, has super-strong hydrophobic, oleophobic, stain-resistant and easily-cleaned characteristics, and can quickly and effectively remove oil dirt, stains and handwriting on the surface in the stamping process or the use process of a finished product.

Description

Easy-to-clean wire drawing color-coated sheet

Technical Field

The application relates to the technical field of color-coated sheets, in particular to an easy-to-clean wire drawing color-coated sheet.

Background

PCM (Prepainted Steel Sheet), referred to as a color coated Sheet for short, is a composite material with an organic coating, and has the advantages of good decoration, energy saving, environmental protection, easy forming, low cost and the like, so that the application of the PCM in recent years is gradually expanded from the building field to the household appliance field, and is commonly used for televisions, refrigerator back boards and the like.

The color-coated sheet is a product prepared by taking a common galvanized sheet as a substrate, performing surface pretreatment (degreasing, cleaning and chemical conversion treatment) on a color coating line, coating an oil coating, and then curing at high temperature and cooling. The production process flow of the color-coated plate mainly comprises the following steps: common galvanized substrate → uncoiling → pretreatment → painting (common oil paint) → baking → cooling → coiling → finished product.

The existing color-coated sheet has no wire drawing effect and no stain resistance, the surface oil stain can not be quickly and effectively removed in the stamping process or the use process of a finished product, particularly, when the color-coated sheet is used as a kitchen appliance, the removal efficiency of the surface oil stain is low, and when the color-coated sheet is also used as other household appliances, handwriting on the surface of the color-coated sheet is difficult to effectively remove if an oil pen is used for coating or marking on the surface of the color-coated sheet, so that the appearance of the product is seriously influenced.

SUMMERY OF THE UTILITY MODEL

In view of the problems, the present application is proposed to provide an easy-to-clean wiredrawing color-coated sheet that overcomes or at least partially solves the problems, comprising:

an easy-to-clean wiredrawing color-coated sheet comprising: the wire drawing device comprises a substrate layer, a wire drawing layer, a first passivation layer, a second passivation layer, a first primer layer, an easy-to-clean finish paint layer and a back paint layer; the surface of the substrate layer is respectively provided with the wire drawing layer and the second passivation layer; the surface of the wire drawing layer is provided with the first passivation layer; the surface of the first passivation layer is provided with the first primer layer; the easy-to-clean finish paint layer is arranged on the surface of the first primer layer; the surface of the second passivation layer is provided with the back paint layer.

Preferably, the substrate layer comprises a metal substrate, a first zinc coating layer and a second zinc coating layer; the first zinc coating and the second zinc coating are respectively arranged on the surface of the metal substrate; the wire drawing layer is arranged on the surface of the first zinc coating; the surface of the second zinc coating is provided with the second passivation layer.

Preferably, the backcoat layer comprises a second primer layer and a second topcoat layer; the surface of the second passivation layer is provided with the second primer layer; the surface of the second primer layer is provided with the second topcoat layer.

Preferably, the first primer layer is an anti-corrosive polyurethane primer layer.

Preferably, the thickness of the easy-to-clean topcoat layer is 3 to 10 μm.

Preferably, the thickness of the first primer layer is 5 to 15 μm.

Preferably, the thickness of the first passivation layer is 0.2-1.5 μm.

Preferably, the thickness of the substrate layer is 0.3-1.5 mm.

Preferably, the thickness of the second passivation layer is 0.2-1.5 μm.

Preferably, the thickness of the backing paint layer is 2-15 μm.

The application has the following advantages:

in embodiments of the present application, the first passivation layer, the second passivation layer, the first primer layer, the easy-to-clean topcoat layer, and the topcoat layer are formed by a substrate layer, a wire drawing layer; the surface of the substrate layer is respectively provided with the wire drawing layer and the second passivation layer; the surface of the wire drawing layer is provided with the first passivation layer; the surface of the first passivation layer is provided with the first primer layer; the easy-to-clean finish paint layer is arranged on the surface of the first primer layer; the surface of second passivation layer is equipped with back paint layer, the antibiotic color-coated plate of easy cleaning can realize the surface wire drawing effect, possesses stronger antibiotic performance to have superstrong hydrophobic, oleophobic, resistant dirty and easy clean characteristic, in stamping process or finished product use, surface grease dirt, spot and handwriting can be got rid of effectively fast.

Drawings

In order to more clearly illustrate the technical solutions of the present application, the drawings needed to be used in the description of the present application will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic structural diagram of an easy-to-clean wiredrawing color-coated sheet according to an embodiment of the present application.

The reference numbers in the drawings of the specification are as follows:

1. a substrate layer; 2. a wire drawing layer; 3. a first passivation layer; 4. a second passivation layer; 5. a first primer layer; 6. the finish paint layer is easy to clean; 7. and (6) backing a paint layer.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1, an easy-to-clean wiredrawing color-coated sheet provided by an embodiment of the present application is shown, including: the wire drawing device comprises a substrate layer 1, a wire drawing layer 2, a first passivation layer 3, a second passivation layer 4, a first primer layer 5, an easy-to-clean finish paint layer 6 and a back paint layer 7; the surface of the substrate layer 1 is respectively provided with the wire drawing layer 2 and the second passivation layer 4; the surface of the wire drawing layer 2 is provided with the first passivation layer 3; the surface of the first passivation layer 3 is provided with the first primer layer 5; the surface of the first primer layer 5 is provided with the easy-to-clean finish paint layer 6; the surface of the second passivation layer 4 is provided with the backing lacquer layer 7.

In the embodiment of the application, the wire drawing layer 2, the first passivation layer 3, the second passivation layer 4, the first primer layer 5, the easy-to-clean topcoat layer 6 and the back paint layer 7 are arranged on the substrate layer 1; the surface of the substrate layer 1 is respectively provided with the wire drawing layer 2 and the second passivation layer 4; the surface of the wire drawing layer 2 is provided with the first passivation layer 3; the surface of the first passivation layer 3 is provided with the first primer layer 5; the surface of the first primer layer 5 is provided with the easy-to-clean finish paint layer 6; the surface of second passivation layer 4 is equipped with back paint layer 7, the antibiotic color-coated plate of easy cleaning can realize the surface wire drawing effect, possesses stronger antibacterial property to have superstrong hydrophobic, oleophobic, resistant dirty and easy clean characteristic, in stamping process or finished product use, surface oil dirt, spot and handwriting can be got rid of effectively fast.

An easy-to-clean wiredrawing color-coated sheet in the present exemplary embodiment will be further described below.

As an example, the easy-to-clean topcoat layer 6 is formed by curing an oily easy-to-clean topcoat, preferably an oily easy-to-clean topcoat under the trade name "easy-to-clean Y01". The oily easy-cleaning finishing paint comprises the following components in parts by weight: 80 parts of polysiloxane, 8 parts of polyurethane, 2 parts of glycerol, 3 parts of naphtha, 2 parts of trimethoxy silane, 1.5 parts of methyl acetate and 3.5 parts of an auxiliary agent. The weight solid part of the oily easy-cleaning finishing paint is more than or equal to 50 percent (the test method is GB/T1723-93), the fineness is less than or equal to 25 mu m (the test method is GB/T1724-1979(1989)), the viscosity is 60-100S (the test method is GB/T1723-93) at 23 ℃, the plate temperature is controlled at 224 ℃ and 241 ℃ (the test method is wet paper), and the curing time is less than or equal to 80S.

The easily cleaned finish paint layer 6 is colorless and transparent, the glossiness is 75-85 (an inspection method is a 60-degree incident angle glossiness test), the impact resistance strength is more than or equal to 9J (an inspection method is a recoil test), the hardness is more than or equal to 3H (an inspection method is a mitsubishi pencil hardness scratching method), the MEK (Methyl Ethyl Ketone) is inspected for more than or equal to 100 times without shedding phenomenon, the 1T bending test has no obvious burst and the viscose does not drop paint, the acid and alkali resistance test (5 percent HCL and 5 percent NaOH) has no obvious change for more than or equal to 24 hours, and the salt spray resistance test has no change for the edge banding for 240 hours, the corrosion of the two sides of the cross is less than or equal to 4mm, no obvious trace is left in the oil pen writing experiment (the oil pen writes, is placed for 24 hours and is wiped by non-woven fabrics), and no trace phenomenon is left in the packaging film printing experiment (the PE packaging film is flatly placed on the surface, foam is filled, 2kg pressure is applied, a 70 ℃ oven is placed for 48 hours, and the packaging film is taken down and cooled).

The frosting contrast experiment is adopted to test the frosting degree and the frost layer removing condition of the surface of the easy-to-clean wire-drawing color-coated plate (the experimental conditions are that a one refrigerating cabinet capable of being normally refrigerated is used for pasting the easy-to-clean wire-drawing color-coated plate and the existing color-coated plate on an inner container of the refrigerating cabinet, b, the refrigerating cabinet is electrified and refrigerated for a long time, the temperature and the environmental humidity of the inner container wall are tested, the frosting degree of the surface of the easy-to-clean wire-drawing color-coated plate and the existing color-coated plate is observed, c, the frost layer is removed after being electrified for six days, whether the frost layer is easily removed is observed), and the experimental results are shown in the following table:

therefore, the easy-to-clean wiredrawing color-coated plate has the same frosting speed as the existing color-coated plate, but the frost layer is easier to remove than the existing color-coated plate.

In this embodiment, the substrate layer 1 includes a metal substrate, a first zinc plating layer, and a second zinc plating layer; the first zinc coating and the second zinc coating are respectively arranged on the surface of the metal substrate; the wire drawing layer 2 is arranged on the surface of the first zinc coating; the surface of the second zinc coating is provided with the second passivation layer 4. The first zinc coating layer and the second zinc coating layer can prevent the surface of the metal substrate from being corroded, thereby prolonging the service life of the metal substrate.

In this embodiment, the first primer layer 5 is an anti-corrosive polyurethane primer layer. Specifically, the first primer layer 5 is formed by curing an anticorrosive polyurethane primer, preferably an anticorrosive polyurethane primer under the trade name "506 primer". The anti-corrosion polyurethane primer comprises the following components in parts by weight: 5-70 parts of modified fluororesin, 1-50 parts of amino resin, 5-40 parts of propylene glycol methyl ether acetate, 10-40 parts of n-butanol, 0.1-2 parts of defoaming agent, 0.1-2 parts of flatting agent and 0.1-2 parts of substrate wetting agent. The anti-corrosion polyurethane primer layer is a transparent, semitransparent or colored coating, can realize various decorative effects, and has good anti-corrosion performance and weather resistance.

In this embodiment, the backcoat layer 7 includes a second primer layer and a second topcoat layer; the surface of the second passivation layer 4 is provided with the second primer layer; the surface of the second primer layer is provided with the second topcoat layer. Specifically, the second primer layer is formed by curing the anti-corrosion polyurethane primer. The second finishing paint layer is formed by curing the oily easy-cleaning finishing paint or other types of finishing paints.

In the present embodiment, the thickness of the easy-cleaning topcoat layer 6 is 3 to 10 μm, preferably 3 μm, 4 μm, 6 μm, 8 μm, or 10 μm.

In the present embodiment, the thickness of the first primer layer 5 is 5 to 15 μm, preferably 5 μm, 7 μm, 10 μm, 13 μm, or 15 μm.

In the present embodiment, the thickness of the first passivation layer 3 is 0.2-1.5 μm, preferably 0.2 μm, 0.5 μm, 0.8 μm, 1.3 μm, or 1.5 μm.

In this embodiment, the thickness of the substrate layer 1 is 0.3-1.5mm, preferably 0.3mm, 0.6mm, 0.9mm, 1.2mm, or 1.5 mm.

In this embodiment, the thickness of the second passivation layer 4 is 0.2-1.5 μm, preferably 0.2 μm, 0.5 μm, 0.8 μm, 1.3 μm or 1.5 μm.

In the present embodiment, the thickness of the back paint layer 7 is 2-15 μm, preferably 2 μm, 5 μm, 8 μm, 12 μm or 15 μm.

In an embodiment of the application, there is further provided a method for preparing an easy-to-clean wiredrawing color-coated sheet, including:

uncoiling, polishing, pre-cleaning and drying the substrate layer 1 to form the wiredrawing layer 2 on any surface of the substrate layer 1;

passivating (chromium-free passivation or chromium-containing passivation) the pretreated substrate layer 1 and drying to form a first passivation layer 3 on the surface of the wire drawing layer 2 and a second passivation layer 4 on the surface of the substrate layer 1;

respectively coating the anti-corrosion polyurethane primer on the surfaces of the first passivation layer 3 and the second passivation layer 4 and drying to form the first primer layer 5 on the surface of the first passivation layer 3 and the second primer layer on the surface of the second passivation layer 4;

coating the oily easy-to-clean finish paint on the surface of the first primer layer 5 and drying to form an easy-to-clean finish paint layer 6 on the surface of the first primer layer 5;

coating the surface of the second primer layer with the oily easy-to-clean finishing coat or other types of finishing coats and drying to form the second finishing coat layer on the surface of the second primer layer;

and coiling the substrate layer 1 treated in the steps to obtain the easy-to-clean wire-drawing color-coated plate.

While preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The easy-to-clean wire drawing color-coated sheet provided by the application is described in detail above, and the principle and the implementation mode of the application are explained by applying specific examples, and the description of the examples is only used for helping to understand the method and the core idea of the application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. An easy-to-clean wire drawing color-coated sheet is characterized by comprising: the wire drawing device comprises a substrate layer, a wire drawing layer, a first passivation layer, a second passivation layer, a first primer layer, an easy-to-clean finish paint layer and a back paint layer; the surface of the substrate layer is respectively provided with the wire drawing layer and the second passivation layer; the surface of the wire drawing layer is provided with the first passivation layer; the surface of the first passivation layer is provided with the first primer layer; the easy-to-clean finish paint layer is arranged on the surface of the first primer layer; the surface of the second passivation layer is provided with the back paint layer.

2. The easy-to-clean wiredrawing color-coated sheet according to claim 1, wherein the substrate layer comprises a metal substrate, a first galvanized layer and a second galvanized layer; the first zinc coating and the second zinc coating are respectively arranged on the surface of the metal substrate; the wire drawing layer is arranged on the surface of the first zinc coating; the surface of the second zinc coating is provided with the second passivation layer.

3. The easy-to-clean wiredrawing color-coated sheet according to claim 1, wherein the back paint layer comprises a second primer layer and a second topcoat layer; the surface of the second passivation layer is provided with the second primer layer; the surface of the second primer layer is provided with the second topcoat layer.

4. The easy-to-clean wiredrawing color-coated sheet according to claim 1, wherein the first primer layer is an anti-corrosive polyurethane primer layer.

5. The easy-to-clean wiredrawing color-coated sheet according to claim 1, wherein the thickness of the easy-to-clean topcoat layer is 3 to 10 μm.

6. The easy-to-clean wiredrawing color-coated sheet according to claim 1, wherein the thickness of the first primer layer is 5 to 15 μm.

7. The easy-to-clean wiredrawing color-coated sheet according to claim 1, wherein the thickness of the first passivation layer is 0.2-1.5 μm.

8. The easy-to-clean wiredrawing color-coated sheet according to claim 1, wherein the thickness of the substrate layer is 0.3-1.5 mm.

9. The easy-to-clean wiredrawing color-coated sheet according to claim 1, wherein the thickness of the second passivation layer is 0.2-1.5 μm.

10. The easy-to-clean wiredrawing color-coated sheet according to claim 1, wherein the thickness of the back paint layer is 2-15 μm.