Water-based ink-jet printed PP decorative film
PP decorative film printed with water-based inkjet printing solves the environmental and plate-making problems of traditional printing methods, enabling environmentally friendly, low-cost, small-batch personalized customization, and improving the adhesion of coatings and ink layers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-27
AI Technical Summary
The existing PP decorative film preparation process has problems with toxic volatile organic compounds polluting the environment and harming health. In addition, traditional printing methods require plate making in advance, which cannot achieve small-batch personalized customization and is costly.
The PP decorative film printed with water-based inkjet printing includes a substrate layer, a pre-coating layer, an ink-absorbing coating layer, an ink printing layer, and a protective layer. All coatings are water-based, using water-based inks. Small-batch personalized customization is achieved through inkjet printing, avoiding the release of toxic substances.
It achieves an environmentally friendly and non-toxic printing process, reduces production costs, simplifies the preparation process, supports small-batch personalized customization, and improves the adhesion of coatings and ink layers.
Smart Images
Figure CN224048571U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to decorative film technology especially relates to a kind of PP decorative film of water-based ink jet printing. BACKGROUND
[0002] With the rapid development of interior decoration industry, the demand for decorative film materials also shows a rapid growth trend. At present, the main decorative film materials on the market are PVC decorative film with polyvinyl chloride (PVC) as substrate and PP decorative film with polypropylene (PP) as substrate, which are mainly used for preparing wallboard, floor and various types of furniture, etc., playing a role in decorating indoor. But PVC itself contains chlorine, and produces toxic gases such as dioxin when burning, while the plasticizer and anti-aging agent added during the preparation of PVC-based film can also cause harm to human body. Polypropylene film is a kind of green environmental protection material with high temperature resistance, chemical corrosion resistance, and no chlorine, formaldehyde and other toxic substances. Therefore, the application of PP decorative film has developed rapidly.
[0003] PP decorative film is mainly composed of color film layer and protective layer attached to its upper surface, and the color film layer provides various patterns, while the protective layer protects the patterns. Among them, the PP decorative film prepared by EB curing technology is called EB-PP decorative film. There are two main printing methods for color film layer: one is to print by traditional large printing machine through intaglio or offset printing; the other is to print UV ink directly on the surface of PP film by inkjet printer, and then to prepare color film with various patterns. However, there are some problems in these two printing methods at present: (1) the printing method of traditional printing machine mainly uses solvent-based ink, and there are a large amount of toxic volatile organic compounds in the printing process, which pollute the environment and harm the health of operators; secondly, the traditional printing method needs to prepare plate in advance, but once the pattern is not selected by the customer, the plate material is wasted, which greatly increases the production cost; in addition, the traditional printing method has certain minimum order quantity requirement, and based on cost consideration, it cannot be customized in small batches and personalized; (2) the printing method of inkjet printer mainly uses UV ink, and when the UV light dries the ink, a large amount of toxic volatile organic compounds and harmful UV radiation are produced, which can harm the health of operators, and the preparation process is not environmentally friendly. CONTENT OF THE UTILITY MODEL
[0004] In view of the problems of needing to prepare plate in advance and producing a large amount of toxic volatile organic compounds in the preparation process of existing PP decorative film, the utility model provides a kind of PP decorative film of water-based ink jet printing, the pre-coating layer and ink-absorbing coating layer are both water-based coating, the ink used is water-based ink, which is green, non-toxic and harmless, and the inkjet printing is adopted, so that plate preparation is not needed, small batch personalized customization can be realized, and production cost can be effectively reduced.
[0005] The utility model discloses the technical scheme that solves its technical problem adopts:
[0006] A kind of PP decorative film of water-based ink jet printing, including the substrate layer as carrier, the substrate layer is film material;
[0007] Precoating, ink-absorbing coating, ink printing layer and protective layer are sequentially layered and superimposed on the substrate layer from bottom to top;
[0008] The precoating and the ink-absorbing coating are both water-based coating, and the precoating and the ink-absorbing coating are sequentially coated on the surface of the substrate layer by coating machine;
[0009] Water-based ink is printed on the surface of the precoating and the ink-absorbing coating by inkjet printer, and the ink printing layer is formed on the upper surface of the ink-absorbing coating under the joint action of the precoating and the ink-absorbing coating;
[0010] The protective layer is EB curing layer, and is prepared by EB resin through EB curing treatment.
[0011] Preferably, the substrate layer is PP film material with a thickness of 0.1-0.5 mm.
[0012] Preferably, the ink printing layer is water-based ink layer.
[0013] The utility model discloses the beneficial effect is:
[0014] Since the precoating and the ink-absorbing coating are both water-based coating, they have the advantages of green environmental protection, non-toxicity and harmlessness, etc., and there are no toxic organic solvents and volatile substances in the printing process, which will not pollute the environment and harm the health of operators; the ink used is water-based ink, which contains no organic solvents and harmful substances, and has little harm to the health of operators; and the printing method is inkjet printing, which does not need to prepare plates in advance, and has the characteristics of simple preparation process, short, flat and fast, etc., can realize small-batch personalized customization, and effectively reduce production cost.
[0015] Moreover, the main function of the ink-absorbing coating is to fix water-based ink, and its main components include latex, cationic color fixing agent, ink fixing filler, wetting agent, crosslinking agent and thickening agent, etc., wherein the latex in the ink-absorbing coating is at least one of water-based acrylic resin or water-based polyurethane, and the latex is cationic or non-ionic; the function of the precoating is to improve the adhesion of the ink printing layer on the upper surface of the ink-absorbing coating (ink layer firmness), and its main components include latex, filler, wetting agent, crosslinking agent and thickening agent, and the latex in the precoating is at least one of water-based acrylic resin or water-based polyurethane; therefore, the firmness of the coating and ink layer on the surface of the PP decorative film can be effectively improved by the precoating and the ink-absorbing coating.
DRAWING DESCRIPTION
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure label:
[0018] 1. Substrate layer; 2. Pre-coating layer; 3. Ink-absorbing coating; 4. Ink printing layer; 5. Protective layer.
Detailed Implementation Methods
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present utility model can be combined with each other. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] A water-based inkjet printed PP decorative film, such as Figure 1 As shown, the substrate layer 1 serves as a carrier and is a PP film material with a thickness of 0.1 to 0.5 mm. A pre-coating layer 2, an ink-absorbing coating layer 3, an ink printing layer 4, and a protective layer 5 are sequentially stacked on the substrate layer 1 from bottom to top. Both the pre-coating layer 2 and the ink-absorbing coating layer 3 are water-based coatings, and are sequentially coated onto the surface of the substrate layer 1 using a coating machine. Water-based ink is printed onto the surfaces of the pre-coating layer 2 and the ink-absorbing coating layer 3 using an inkjet printer, and the ink printing layer 4 is formed by the combined action of the pre-coating layer 2 and the ink-absorbing coating layer 3 and is fixed to the surface of the ink-absorbing coating layer 3. This ink printing layer 4 is a water-based ink layer. The protective layer 5 is an EB curing layer, obtained by curing EB resin.
[0022] The preparation process of the PP decorative film is as follows: firstly, the pre-coating layer 2 and the ink-absorbing coating layer 3 are coated on the surface of the substrate layer 1 adopting the PP film by a coating machine, and then the water-based ink is printed on the surface by an inkjet printer after drying, and the ink-printing layer 4 is obtained after the ink is dried, and then the PP color film is obtained; subsequently, the EB curing resin is coated on the surface of the color film by the coating machine, and then the protective layer 5 is obtained by the EB curing device, and finally the PP decorative film is prepared.
[0023] In this embodiment, the main function of the ink-absorbing coating layer 3 is to fix the water-based ink, and the main components thereof include latex, cationic color fixing agent, ink fixing filler, wetting agent, crosslinking agent and thickening agent; wherein the latex in the ink-absorbing coating layer 3 is at least one of water-based acrylic resin or water-based polyurethane, and the latex is cationic or non-ionic; the function of the pre-coating layer 2 is to improve the adhesion of the ink-printing layer on the surface of the ink-absorbing coating layer 3 (ink layer firmness), and the main components of the pre-coating layer 2 include latex, filler, wetting agent, crosslinking agent and thickening agent, and the latex in the pre-coating layer 2 is at least one of water-based acrylic resin or water-based polyurethane. The protective layer 4 is an EB resin curing layer, and the main component of the EB curing resin is polyurethane acrylate.
[0024] Compared with the prior art, the PP decorative film in this embodiment adopts water-based ink jet printing, and all the coating layers are water-based coating layers, which has the advantages of green environmental protection, non-toxicity, harmlessness, environmental friendliness and the like, and the preparation process does not need to prepare a plate in advance, and the process is simple, small-batch personalized customization can be realized, and the production cost can be effectively reduced.
[0025] The above-described embodiments are only preferred embodiments of the present application, and do not limit the scope of the present application, and equivalent changes made according to the shape, structure and principle of the present application should be covered in the protection scope of the present application.
Claims
1. A PP decorative film for aqueous inkjet printing, characterized by, The base material layer (1) as the carrier is a film material; The pre-coating layer (2), ink-absorbing coating layer (3), ink printing layer (4) and protective layer (5) are sequentially layered and superimposed on the base material layer (1) from bottom to top; The pre-coating layer (2) and the ink-absorbing coating layer (3) are both aqueous coating layers, and the pre-coating layer (2) and the ink-absorbing coating layer (3) are sequentially coated on the surface of the base material layer (1) by a coating machine; The aqueous ink is printed on the surface of the pre-coating layer (2) and the ink-absorbing coating layer (3) by an inkjet printer, and the pre-coating layer (2) and the ink-absorbing coating layer (3) are fixed on the upper surface of the ink-absorbing coating layer (3) to form the ink printing layer (4); The protective layer (5) is an EB curing layer, and is prepared by EB resin through EB curing treatment.
2. The water-based inkjet printed PP decorative film according to claim 1, characterized in that: The base material layer (1) is a PP film material with a thickness of 0.1-0.5 mm.
3. The water-based inkjet printed PP decorative film according to claim 1, characterized in that: The ink printing layer (4) is an aqueous ink layer.