Imitation stainless steel film color steel plate

Abstract

The utility model discloses an imitated stainless steel film color steel plate which comprises a stainless steel base material layer, a first bonding layer, an aluminum foil layer, a second bonding layer, a printing layer, a functional film layer and an outer protection layer are sequentially arranged on one surface of the stainless steel base material layer from inside to outside, and the functional film layer is a fluorocarbon POD film. The aluminum foil arranged on one side of the stainless steel substrate layer can bring metallic luster and is more attractive in appearance, the anti-aging fluorocarbon POD film is adopted, so that the anti-aging performance and the anti-corrosion performance of the color steel plate are greatly improved, and the aluminum foil layer is the wiredrawing aluminum foil, so that the bonding strength of the bonding layer can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of color steel plate, especially to imitate stainless steel film color steel plate. BACKGROUND

[0002] Steel plate has been widely used in industry and life, especially the application of thin plate is more extensive, and the automobile, refrigerator, washing machine and high-grade room isolation plate etc.

[0003] In recent years, in the household appliance industry, composite film is set on the surface of color steel plate to play a protective role, but the film also covers the metal luster, loses the original metal texture. Such as China patent publication literature No. CN203600728 U has disclosed a kind of imitate stainless steel film color steel plate, including PE protective film layer, UV layer, PET film layer, printing layer, first adhesive layer, aluminum foil wire drawing layer, PVC layer, third adhesive layer, first passivation layer, steel plate base material, second passivation layer and back paint layer are sequentially arranged. The imitate stainless steel film color steel plate of the above technical scheme, since PET film is used, and compared with some other materials, the weather resistance and corrosion resistance of PET film and PVC film are poor. Long time exposure to sunlight, PET film is prone to yellowing and aging, PVC film will discolor and age, which will affect its appearance and performance. In order to prolong the service life of PET film and PVC film, the protection mode such as adding antioxidant, ultraviolet inhibitor, stabilizer and the like is usually adopted in the prior art, but this practice greatly increases the cost. In addition, since the UV layer is provided, the UV glue contains antioxidants and other chemicals, long-term contact may stimulate the skin tissue, and easily cause dry skin, desquamation and other symptoms; UV glue also has certain volatile substances, if long-term activities in the environment with UV glue, it usually causes respiratory damage, and easily causes patients to have symptoms such as cough, expectoration and the like; and the construction process of UV glue needs ultraviolet light irradiation curing, and the processing is relatively complicated and time-consuming. In summary, the imitate stainless steel film color steel plate has poor weather resistance, is not environmentally friendly, and needs to be further improved. Therefore, it is necessary to provide a new imitate stainless steel film color steel plate to solve the above technical problems. UTILITY MODEL CONTENT

[0004] To solve at least one of the above technical problems, the utility model aims to provide an imitate stainless steel film color steel plate with better aging resistance, corrosion resistance and environmental protection.

[0005] Based on the above problems, the technical scheme provided by the utility model is:

[0006] The utility model discloses a kind of imitation stainless steel film color steel sheets, including stainless steel substrate layer, first adhesive layer, aluminium foil layer, second adhesive layer, printing layer, functional film layer and outer protective layer are sequentially provided from inside to outside on one surface of the stainless steel substrate layer, the functional film layer is fluorocarbon POD film.

[0007] Optionally, the stainless steel substrate layer is made of 2 series stainless steel, 3 series stainless steel or 4 series stainless steel.

[0008] Optionally, the first adhesive layer and the second adhesive layer are nano water-based adhesives.

[0009] Optionally, the first adhesive layer and the second adhesive layer are combined on the two opposite surfaces of the aluminium foil layer by coating or spraying.

[0010] Optionally, the functional film layer is combined on the side of the printing layer away from the second adhesive layer by pressing.

[0011] Optionally, the outer protective layer is nano oil-based paint, nano water-based paint or functional protective coating; or, the outer protective layer is a PE protective film.

[0012] Optionally, when the outer protective layer is nano oil-based paint, nano water-based paint or functional protective coating, the outer protective layer is combined on the side of the functional film layer away from the printing layer by spraying or coating; or

[0013] When the outer protective layer is a PE protective film, the outer protective layer is combined on the side of the functional film layer away from the printing layer by pressing.

[0014] Optionally, the aluminium foil layer is a drawn aluminium foil, and one side of the aluminium foil layer facing the second adhesive layer is formed with a draw.

[0015] Optionally, a first passivation layer is further formed on the side of the stainless steel substrate layer facing the first adhesive layer.

[0016] Optionally, a back paint layer is further formed on the side of the stainless steel substrate layer away from the first adhesive layer, or a second passivation layer and the back paint layer are sequentially formed from inside to outside.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] The imitation stainless steel film color steel sheet of the utility model sets aluminium foil on one side of the stainless steel substrate layer, which can bring metallic luster and more beautiful appearance, and uses the anti-aging film fluorocarbon POD film, so that the anti-aging performance and corrosion resistance of the color steel sheet are greatly improved, and the aluminium foil layer is a drawn aluminium foil, which can improve the bonding strength of the adhesive layer. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows, and the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 The present application is a cross-sectional structure diagram of the imitation stainless steel film color steel plate.

[0021] Among them:

[0022] 10, stainless steel substrate layer; 20, first adhesive layer; 30, aluminum foil layer; 40, second adhesive layer; 50, printing layer; 60, functional film layer; 70, outer protective layer; 80, first passivation layer; 90, second passivation layer; 100, back paint layer. Specific implementation

[0023] The above scheme will be further described in combination with specific embodiments. It should be understood that these embodiments are used to illustrate the present application and do not limit the scope of the present application. The implementation conditions used in the embodiments can be further adjusted according to the specific conditions of the manufacturer, and the implementation conditions not mentioned are usually the conditions in the conventional experiment.

[0024] The imitation stainless steel film color steel plate of the embodiments of the present application, see Figure 1 , comprising a stainless steel substrate layer 10 and a first passivation layer 80, a first adhesive layer 20, an aluminum foil layer 30, a second adhesive layer 40, a printing layer 50, a functional film layer 60 and an outer protective layer 70 which are sequentially arranged from bottom to top on the upper surface of one of the surfaces of the stainless steel substrate layer 10, i.e. Figure 1 as shown in Figure 1 , and a back paint layer 100 arranged on the other surface of the stainless steel substrate layer 10, i.e. Figure 1 the lower surface, i.e. Figure 1The second passivation layer 90 and the back paint layer 100 are arranged in sequence from top to bottom. In the embodiment of the utility model, the stainless steel substrate layer 10 is selected from the conventional 2 series stainless steel or 3 series stainless steel or 4 series stainless steel on the market. The functional film layer 60 is the fluorocarbon POD film on the market. The thickness of the stainless steel substrate layer 10 is not limited, and can be selected as 0.2-1.0mm. The first passivation layer 80 and the second passivation layer 90 are respectively formed on the upper and lower surfaces of the stainless steel substrate layer 10, and can be formed after passivation treatment by the passivation liquid in the prior art or the passivation treatment mode known by the person skilled in the art, and the specific thickness is not described and limited. The first bonding layer 20 is arranged on the upper surface of the first passivation layer 80. The first bonding layer 20 and the second bonding layer 40 are respectively arranged on the upper and lower surfaces of the aluminum foil layer 30, that is, the first bonding layer 20 is arranged between the upper surface of the stainless steel substrate layer 10 and the lower surface of the aluminum foil layer 30, and the second bonding layer 40 is arranged between the upper surface of the aluminum foil layer 30 and the lower surface of the printing layer 50. The printing layer 50 is arranged on the upper surface of the second bonding layer 40. The functional film layer 60 is arranged on the upper surface of the printing layer 50. The outer protective layer 70 is arranged on the upper surface of the functional film layer 60. The back paint layer 100 is arranged on the lower surface of the second passivation layer 90. As an alternative embodiment, the stainless steel film color steel plate of the embodiment does not include the first passivation layer 80, the second passivation layer 90 and the back paint layer 100. As another alternative embodiment, the stainless steel film color steel plate of the embodiment does not include the first passivation layer 80 and the second passivation layer 90.

[0025] The functional film layer 60 of the embodiment of the utility model can be combined with the printing layer 50 by pressing with the existing conventional pressing device on the side of the printing layer 50 away from the second bonding layer 40, that is, as shown in the figure Figure 1The upper surface of the printed layer 50 is shown. For the functional film layer 60, the present application embodiment is preferably the existing fluorocarbon POD film on the market. The weather resistance of fluorocarbon POD film is very good, with strong weather resistance, ultraviolet resistance and chemical corrosion resistance. The main component of fluorocarbon POD film is polyvinylidene fluoride (PVDF), which has excellent weather resistance and can effectively resist the effects of ultraviolet radiation, atmospheric factors and chemical corrosion, thereby maintaining color stability for a long time and not easily fading or discoloring. In addition, fluorocarbon POD film also has the characteristics of high temperature resistance, cold resistance, acid and alkali resistance, etc., and can maintain the stability of its performance under extreme climate conditions. Fluorocarbon POD film is widely used in the fields of building, automobile and ship. In the field of building, fluorocarbon POD film is often used for exterior wall decoration and waterproof treatment, which can provide long-term protection and aesthetic effect. In the field of automobiles, fluorocarbon POD film is used for vehicle body coating, providing excellent weather resistance and corrosion resistance. In the field of ships, fluorocarbon POD film is used for ship body coating, which can resist the corrosion of seawater and the irradiation of ultraviolet light. In summary, the present application adopts fluorocarbon POD film, which has the effects of anti-aging and anti-corrosion. The automobile exterior steel plate often needs to be exposed to sunlight and the external environment, which can improve the anti-aging performance and corrosion resistance of the steel plate, thereby improving the service life of the product. The applicant found that the corrosion resistance of the color steel plate according to the present application embodiment can ensure the service life of the product to be 20 years.

[0026] For the aluminum foil layer 30, it is preferably a conventional drawn aluminum foil. A drawn wire is formed on at least one side of the aluminum foil layer 30 facing the second adhesive layer 40, i.e. the upper surface or the outer surface of the aluminum foil layer 30, which can increase the metal luster. As an alternative embodiment, the two opposite surfaces of the aluminum foil layer 30 facing the first adhesive layer 20 and the second adhesive layer 40 respectively, i.e. the upper and lower surfaces of the aluminum foil layer 30 as shown, are both formed with drawn wires. Through the arrangement of the drawn wires, not only the metal luster can be increased, but also the bonding strength of the aluminum foil layer 30 with the first adhesive layer 20 and the second adhesive layer 40 can be improved. Figure 1

[0027] For the first adhesive layer 20 and the second adhesive layer 40, the coating or spraying method is used to combine the upper and lower surfaces of the aluminum foil layer 30 respectively. The present application embodiment is preferably a conventional nano water-based adhesive on the market. It has high temperature resistance and does not corrode objects, has firm combination and is not easy to fall off even if exposed to the sun. Moreover, the nano water-based adhesive is more environmentally friendly compared to others. The thickness of the adhesive layer is not particularly limited and described, and those skilled in the art can select and design according to the actual scene or the required amount of nano glue.

[0028] ​For the outer protective layer 70, some preferred embodiments of the utility model embodiment are conventional nano oil paint or nano water-based paint or some functional protective coating on the market, such as bactericidal functional coating or cleaning coating, etc., and specific description and limitation are not made, such as polyurethane paint, etc. There can also be conventional PE protective film on the market. Functional protective coating can not only play a protective function, but also increase other functions such as bactericidal or cleaning functions required in specific applications. When the outer protective layer 70 is nano oil paint or nano water-based paint or functional protective coating, the outer protective layer 70 is combined on the upper surface of the functional film layer 60 away from the printing layer 50, that is, as shown in Figure 1 When the outer protective layer 70 is PE protective film, the outer protective layer 70 is combined on the upper surface of the functional film layer 60 away from the printing layer 50 by pressing with a conventional pressing device, that is, as shown in Figure 1 The thickness of the outer protective layer 70 is not described and limited, and those skilled in the art can select and design according to the actual situation.

[0029] For the printing layer 50, it is a conventional printing layer 50, and specific description and limitation are not made. The printing layer 50 can increase the effect of stainless steel. Its thickness is not described and limited, and those skilled in the art can select and design according to the actual situation.

[0030] For the back paint layer 100, it can be a conventional epoxy resin coating on the market, which improves the wear resistance and corrosion resistance and is beneficial to protect the stainless steel substrate layer 10. Its thickness is also not described and limited, and those skilled in the art can select and design according to the actual situation.

[0031] In summary, compared with the imitation stainless steel film color steel plate in the background art, the imitation stainless steel film color steel plate of the utility model embodiment adopts fluorocarbon POD film with better aging resistance and corrosion resistance, and the aging resistance and corrosion resistance of the product are greatly improved. The setting of the aluminum foil layer 30 can not only decorate the stainless steel substrate layer 10, but also bring metal luster. The design of the wire drawing not only improves the metal luster, but also improves the bonding strength of the aluminum foil layer 30 and the adhesive layer. At the same time, the setting of the printing layer 50 can increase the effect of stainless steel. At the same time, the thickness is also thinner, the cost can be further reduced, and there is no use of UV glue, which is more environmentally friendly.

[0032] In addition, it should be noted that Figure 1 The thickness of each layer shown in the above is not the actual thickness.

[0033] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent transformation or modification according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A stainless steel-imitated color steel plate comprising a stainless steel base material layer, characterized in that, A first adhesive layer, an aluminum foil layer, a second adhesive layer, a printing layer, a functional film layer and an outer protective layer are sequentially arranged from inside to outside on one surface of the stainless steel substrate layer, the functional film layer is a fluorocarbon POD film, the aluminum foil layer is a drawn aluminum foil and at least one side of the aluminum foil layer facing the second adhesive layer is formed with a draw.

2. The stainless-steel-imitated color steel plate according to claim 1, characterized in that, The stainless steel substrate layer is made of 2 series stainless steel, 3 series stainless steel or 4 series stainless steel.

3. The stainless-steel-imitated color steel plate according to claim 1, characterized in that, The first adhesive layer and the second adhesive layer are nano-aqueous adhesives.

4. The stainless-steel-imitated color steel plate according to claim 3, characterized in that, The first adhesive layer and the second adhesive layer are respectively combined on two opposite surfaces of the aluminum foil layer by coating or spraying.

5. The stainless-steel-imitated color steel plate according to claim 1, characterized in that, The functional film layer is combined on the side of the printing layer away from the second adhesive layer by pressing.

6. The stainless-steel-imitated color steel plate according to claim 1, characterized in that, The outer protective layer is a nano-oily paint, a nano-aqueous paint or a functional protective coating; or the outer protective layer is a PE protective film.

7. The stainless-steel-imitated color steel plate according to claim 6, characterized in that, When the outer protective layer is a nano-oily paint, a nano-aqueous paint or a functional protective coating, the outer protective layer is combined on the side of the functional film layer away from the printing layer by spraying or coating; or When the outer protective layer is a PE protective film, the outer protective layer is combined on the side of the functional film layer away from the printing layer by pressing.

8. The stainless-steel-imitated color steel plate according to claim 1, characterized in that, A first passivation layer is further formed on the side of the stainless steel substrate layer facing the first adhesive layer.

9. The stainless-steel-imitated color steel plate according to any one of claims 1-8, characterized in that, A back paint layer is further formed on the side of the stainless steel substrate layer away from the first adhesive layer or a second passivation layer and the back paint layer are sequentially formed from inside to outside.

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