Photocatalytic antibacterial and deodorant film-coated lining and production process thereof

Abstract

The invention discloses a photocatalytic antibacterial deodorizing film-coated lining and a production process thereof, and belongs to the technical field of film-coated linings. The production process comprises the following production processes: preparation of a PE layer: melting, extrusion molding, cooling and air drying; preparing a mixed layer: producing PVC, adding auxiliary materials and curing; combining: coating multiple layers, adhering and pre-curing; post-treatment: curing, cleaning and air-drying; performing rolling; the film is rolled, packaged and put in storage. The photocatalytic antibacterial and deodorant film-coated lining comprises a paper material, a flame-retardant layer, a PE layer, a connecting layer and a mixing layer. The titanium dioxide, the silicon dioxide, the metal oxide and the organic additive are added into the photocatalytic antibacterial and deodorant film-coated lining, and the auxiliary materials interact in the photocatalytic antibacterial and deodorant film-coated lining, so that harmful gases and bacteria in the air are decomposed and removed together, and the antibacterial and deodorant effects are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of film linings, and in particular to a photocatalytic antibacterial and deodorizing film lining and a production process thereof. Background Art

[0002] Laminated interlining is a composite material formed by covering paper or other materials with a plastic film. This material combines the protective properties of plastic film with the structural support properties of paper materials.

[0003] During use, the surface of the film lining is prone to breeding bacteria, especially in a humid or warm environment, where bacteria reproduce faster, which may cause odor, affect the user experience, and may even cause health problems. Moreover, for some items or environments that are prone to odor, such as trash cans, kitchens, and bathrooms, the film lining without antibacterial and deodorizing functions cannot effectively suppress the emission of odor, making the surrounding environment smell unpleasant. For this purpose, a photocatalytic antibacterial and deodorizing film lining is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the above problems and to propose a photocatalytic antibacterial deodorizing film lining and its production process.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: comprising the following production process:

[0006] PE layer preparation: melting, extrusion, cooling and air drying;

[0007] Preparation of mixed layer: PVC production, auxiliary material addition and curing;

[0008] Combination: multi-layer coating, bonding and pre-curing;

[0009] Post-processing: curing, cleaning and air drying;

[0010] Rewinding; film winding and packaging for storage;

[0011] The photocatalytic antibacterial and deodorizing film lining comprises: a paper material, a flame retardant layer, a PE layer, a connecting layer and a mixed layer;

[0012] In practical applications, the photocatalytic antibacterial and deodorizing film lining is added with titanium dioxide, silicon dioxide, metal oxides and organic additives. These auxiliary materials interact with each other in the photocatalytic antibacterial and deodorizing film lining to decompose and remove harmful gases and bacteria in the air, thereby achieving the effect of antibacterial and deodorizing.

[0013] Furthermore, the mixed layer is made of PVC material, and titanium dioxide, silicon dioxide, metal oxides and organic additives are adhered to the surface of the PVC material;

[0014] In practical applications,

[0015] Titanium dioxide (TiO2): It is the most commonly used photocatalyst, with the advantages of high catalytic activity, good chemical stability, non-toxicity to the human body, low cost, and no pollution. It can produce strong oxidizing free radicals under ultraviolet irradiation, effectively decomposing organic pollutants and killing bacteria;

[0016] Silicon dioxide (SiO2): has good adsorption and stability, and can be used as a carrier of photocatalysts to increase the specific surface area of photocatalysts and improve their catalytic activity;

[0017] Metal oxides: such as iron oxide (Fe2O3) and manganese oxide (MnO2), can be used as co-catalysts to improve the efficiency of photocatalytic reactions;

[0018] Organic additives: such as polymers, surfactants, etc., can improve the physical properties and processing properties of the film lining, and have a certain effect on the photocatalytic reaction.

[0019] Further, PVC production: PVC material is added to the extruder, melted under high temperature and high pressure and extruded through the die head to form a PE film of a certain thickness. The extrusion temperature is generally controlled between 160℃-180℃;

[0020] Adding auxiliary materials: Heat the auxiliary materials and spray them on the PVC film before the PVC film cools down;

[0021] Curing: Cast the PVC film into sheets onto a cooling roller and cool it down to set the shape;

[0022] In actual application, when adding hot auxiliary materials, the auxiliary materials are heated first, and then a tool is used to spray the auxiliary materials onto the PVC film. The PVC film is cast into a sheet shape onto the rotating roller. The surface of the rotating roller can be continuously heated, so that the auxiliary materials can be better embedded in the surface of the PVC film.

[0023] Furthermore, the connecting layer is a water-based adhesive, and the paper material, the flame retardant layer, the PE layer and the mixed layer are bonded together using the water-based adhesive;

[0024] In practical applications, water-based adhesives are used for PET-PVC composite films. They are made from an epoxy-acrylic acid polymer emulsion prepared by a core / shell polymerization method, combined with a curing agent and other ingredients. This adhesive offers excellent bonding properties, firmly adhering to PVC and PET films even with a thin adhesive layer, while preventing edge cracking during composite film cutting. It also boasts high transparency, without affecting the film's permeability or gloss. Furthermore, it is water-soluble, releases no harmful gases during use, and is environmentally friendly.

[0025] Further, cleaning: When the photocatalytic antibacterial deodorizing film lining passes through the cleaning pool, use a soft brush to wipe the surface of the photocatalytic antibacterial deodorizing film lining to brush off the auxiliary materials that are not firmly adhered.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The photocatalytic antibacterial deodorizing film lining is added with titanium dioxide, silicon dioxide, metal oxides and organic additives. These auxiliary materials interact with each other in the photocatalytic antibacterial deodorizing film lining to decompose and remove harmful gases and bacteria in the air, achieving the effect of antibacterial deodorization.

[0028] When adding hot auxiliary materials, heat the auxiliary materials first, and then use tools to spray the auxiliary materials onto the PVC film. The PVC film is cast into sheets onto the rotating roller. The surface of the rotating roller can be continuously heated, so that the auxiliary materials can be better embedded in the surface of the PVC film. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The present invention provides a photocatalytic antibacterial and deodorizing film lining and a production process thereof;

[0030] Figure 2 This is a production process diagram of a photocatalytic antibacterial deodorizing film lining and its production process proposed by the present invention.

[0031] In the figure: 1. Paper material; 2. Flame retardant layer; 3. PE layer; 4. Connecting layer; 5. Mixed layer. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0034] Reference Figure 1 and Figure 2 , a photocatalytic antibacterial deodorizing film lining and its production process, including the following production processes:

[0035] PE layer preparation: melting, extrusion, cooling and air drying;

[0036] Preparation of mixed layer: PVC production, auxiliary material addition and curing;

[0037] Combination: multi-layer coating, bonding and pre-curing;

[0038] Post-processing: curing, cleaning and air drying;

[0039] Rewinding; film winding and packaging for storage;

[0040] The photocatalytic antibacterial and deodorizing film lining comprises: a paper material 1, a flame retardant layer 2, a PE layer 3, a connecting layer 4 and a mixed layer 5;

[0041] In practical applications, the photocatalytic antibacterial and deodorizing film lining is added with titanium dioxide, silicon dioxide, metal oxides and organic additives. These auxiliary materials interact with each other in the photocatalytic antibacterial and deodorizing film lining to decompose and remove harmful gases and bacteria in the air, thereby achieving the effect of antibacterial and deodorizing.

[0042] Furthermore, the mixed layer 5 is made of PVC material, and titanium dioxide, silicon dioxide, metal oxides and organic additives are adhered to the surface of the PVC material;

[0043] In practical applications,

[0044] Titanium dioxide (TiO2): It is the most commonly used photocatalyst, with the advantages of high catalytic activity, good chemical stability, non-toxicity to the human body, low cost, and no pollution. It can produce strong oxidizing free radicals under ultraviolet irradiation, effectively decomposing organic pollutants and killing bacteria;

[0045] Silicon dioxide (SiO2): has good adsorption and stability, and can be used as a carrier of photocatalysts to increase the specific surface area of photocatalysts and improve their catalytic activity;

[0046] Metal oxides: such as iron oxide (Fe2O3) and manganese oxide (MnO2), can be used as co-catalysts to improve the efficiency of photocatalytic reactions;

[0047] Organic additives: such as polymers, surfactants, etc., can improve the physical properties and processing properties of the film lining, and have a certain effect on the photocatalytic reaction.

[0048] Further, PVC production: PVC material is added to the extruder, melted under high temperature and high pressure and extruded through the die head to form a PE film of a certain thickness. The extrusion temperature is generally controlled between 160℃-180℃;

[0049] Adding auxiliary materials: Heat the auxiliary materials and spray them on the PVC film before the PVC film cools down;

[0050] Curing: Cast the PVC film into sheets onto a cooling roller and cool it down to set the shape;

[0051] In actual application, when adding hot auxiliary materials, the auxiliary materials are heated first, and then a tool is used to spray the auxiliary materials onto the PVC film. The PVC film is cast into a sheet shape onto the rotating roller. The surface of the rotating roller can be continuously heated, so that the auxiliary materials can be better embedded in the surface of the PVC film.

[0052] Furthermore, the connecting layer 4 is a water-based adhesive, and the paper material 1, the flame retardant layer 2, the PE layer 3 and the mixed layer 5 are bonded together using the water-based adhesive;

[0053] In practical applications, water-based adhesives are used for PET-PVC composite films. They are made from an epoxy-acrylic acid polymer emulsion prepared by a core / shell polymerization method, combined with a curing agent and other ingredients. This adhesive offers excellent bonding properties, firmly adhering to PVC and PET films even with a thin adhesive layer, while preventing edge cracking during composite film cutting. It also boasts high transparency, without affecting the film's permeability or gloss. Furthermore, it is water-soluble, releases no harmful gases during use, and is environmentally friendly.

[0054] Further, cleaning: When the photocatalytic antibacterial deodorizing film lining passes through the cleaning pool, use a soft brush to wipe the surface of the photocatalytic antibacterial deodorizing film lining to brush off the auxiliary materials that are not firmly adhered.

[0055] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A photocatalytic antibacterial deodorizing film lining and its production process, characterized in that: Including the following production processes: PE layer preparation: melting, extrusion, cooling and air drying; Preparation of mixed layer: PVC production, auxiliary material addition and curing; Combination: multi-layer coating, bonding and pre-curing; Post-processing: curing, cleaning and air drying; Rolling up; Film winding and packaging storage; The photocatalytic antibacterial and deodorizing film lining comprises: a paper material (1), a flame retardant layer (2), a PE layer (3), a connecting layer (4) and a mixed layer (5).

2. The photocatalytic antibacterial deodorizing film lining and its production process according to claim 1, characterized in that: The mixed layer (5) is made of PVC material, and titanium dioxide, silicon dioxide, metal oxides and organic additives are adhered to the surface of the PVC material.

3. The photocatalytic antibacterial deodorizing film lining and its production process according to claim 1, characterized in that: PVC production: PVC material is added to the extruder, melted under high temperature and high pressure and extruded through the die to form a PE film of a certain thickness. The extrusion temperature is generally controlled between 160℃ and 180℃. Adding auxiliary materials: Heat the auxiliary materials and spray them on the PVC film before the PVC film cools down; Curing: Cast the PVC film in sheet form onto a cooling roller and cool it down to set.

4. The photocatalytic antibacterial deodorizing film lining and its production process according to claim 3, characterized in that: The connecting layer (4) is a water-based adhesive, and the paper material (1), the flame retardant layer (2), the PE layer (3) and the mixed layer (5) are bonded together using the water-based adhesive.

5. The photocatalytic antibacterial deodorizing film lining and its production process according to claim 4, characterized in that: Cleaning: When the photocatalytic antibacterial deodorizing film lining passes through the cleaning pool, use a soft brush to wipe the surface of the photocatalytic antibacterial deodorizing film lining to brush off the auxiliary materials that are not firmly adhered.

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