Inside-attached heat transfer printing one-way permeable membrane
By using an internal heat transfer one-way vision film design, heat and pressure are used to transfer the ink layer and seal off odors, solving the problem of odor release during the heat transfer process and improving the product's heat resistance and protective performance.
Patent Information
- Application Number
- CN202520083771.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2035-01-14
AI Technical Summary
During the heat transfer process, the sudden increase in temperature of the hot stamping structure causes the hot melt adhesive to melt, and the transfer of dye and pattern from the ink layer to the product surface may release an odor that is difficult to handle.
It adopts an internal heat transfer one-way vision film, which includes a hot stamping film, an ink printing layer, a hot melt adhesive layer, a heat-resistant layer, an anti-seepage layer, and a backing layer. Heat and pressure are used to transfer the ink printing layer to the product surface. The polyimide film seals the odor, the HDPE film prevents the ink from seeping out, and the PE and OPP protective films provide dustproof and flame-retardant protection.
It achieves stable ink transfer, seals odors, prevents ink leakage, improves the product's heat resistance and chemical stability, and enhances its dustproof and flame-retardant properties.
Smart Images
Figure CN223559388U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat transfer one-way vision film technology, specifically to an internally laminated heat transfer one-way vision film. Background Technology
[0002] The heat transfer decoration process involves heating a heat transfer film once to transfer the decorative pattern onto the surface of the building material, forming a high-quality decorative film. During the heat transfer process, the protective layer and pattern layer are separated from the polyester substrate by the combined action of heat and pressure. Hot melt adhesive permanently bonds the entire decorative layer to the substrate. The heat transfer film consists of a polyethylene film backing with a wood grain decorative layer printed on it, and a protective layer, a base color layer, a release layer, and a hot melt adhesive layer coated on the surface. By heating a high-temperature silicon roller, temperature and pressure are applied to the transfer foil, causing the transfer layer, consisting of the decorative wood grain printing layer, the surface protective layer, and the base color layer, to separate from the polyethylene and transfer onto the surface of the artificial board or furniture parts, thus forming a decorative surface pattern. This gives the surface excellent properties such as wear resistance, heat resistance, and light resistance. The patterns are novel and beautiful, and the colors are stable, making it a widely used decorative material.
[0003] Heat transfer film has its unique properties. To achieve the ideal hot stamping effect, it is essential to strictly control the optimal temperature, pressure, and speed. There are three key process parameters: 1. Temperature Determination: Too low a temperature will result in incomplete or weak hot stamping, and may also cause uneven printing. Too high a temperature will cause oxidation of the color layer, leading to a loss of luster, darkening of the color, and in severe cases, bubbling. Determining the optimal hot stamping temperature should consider the following factors: pressure, speed, area, and room temperature. The general range for hot stamping temperature is 140℃–180℃. Once the optimal temperature is determined, it should be kept constant, with a temperature fluctuation of ±2℃ being ideal. 2. Pressure Determination: The hot stamping pressure is generally 4–6 kg / cm². If the pressure is too low, the hot stamping film cannot adhere to the substrate, reducing the adhesion. If the pressure is too high, the substrate will be compressed and deformed, resulting in pattern deformation and thinning of the printed layer. When hot stamping complex and uneven products, more attention should be paid to the uniformity of each pressure point. The pressure angle between the hot stamping wheel and the substrate is required to be higher. Otherwise, it is very easy to have some parts adhered and some parts not. 3. Determining the speed: It should be determined according to the hot stamping area, and the heating power should also be considered. Generally, the speed should be determined first, then the pressure, and finally the temperature.
[0004] However, in the existing technology, during the heat transfer process, the sudden increase in the temperature of the hot stamping structure causes the hot melt adhesive to melt, and the dye and pattern of the ink layer are transferred to the surface of the product, which may release some odors and is difficult to handle. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] The purpose of this utility model is to provide an internal heat transfer one-way vision film to solve the problem mentioned in the background art where, during the heat transfer process, the sudden increase in the temperature of the hot stamping structure causes the hot melt adhesive to melt, and the dye and pattern of the ink layer are transferred to the surface of the product, which may release some odors and is difficult to handle.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: an internal heat transfer one-way vision film, including a hot stamping film, wherein an ink printing layer is provided on the outer side of the hot stamping film, and the hot stamping film is a blown PE film.
[0009] Preferably, a hot melt adhesive layer is provided on the outer side of the ink printing layer, and a heat-resistant layer is provided on the outer side of the hot melt adhesive layer. The ink printing layer is transferred to the outer surface of the product by the combined action of heat and pressure, and the hot melt adhesive permanently bonds the entire ink printing layer to the product.
[0010] Preferably, the heat-resistant layer is made of polyimide film, and an impermeable layer is provided on the outside of the heat-resistant layer. The polyimide film has excellent resistance to high and low temperatures. When the polyimide film is heated, it is difficult to break, and it can seal in the odor generated by the material inside when heated.
[0011] Preferably, the impermeable layer is made of HDPE membrane, and a backing layer is provided on the outside of the impermeable layer. HDPE membrane has excellent chemical stability, can resist corrosion, and prevents ink from seeping out of its inner side.
[0012] Preferably, the first backing layer is a PE protective film, and the outer side of the first backing layer is provided with a second backing layer, which is an OPP protective film. The PE protective film is relatively soft and has a certain degree of stretchability, which can play a role in dust prevention. The OPP protective film has greater hardness and a certain degree of flame retardancy, which can protect the material on its inner side.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This inner heat transfer one-way vision film uses the combined action of heat and pressure to transfer the ink printing layer to the outer surface of the product. The hot melt adhesive permanently bonds the entire ink printing layer to the product. The polyimide film has excellent high and low temperature resistance. When the polyimide film is heated, it is difficult to break. It can seal the odor generated by the material inside when heated.
[0015] 2. The inner heat transfer one-way vision film is made of HDPE film, which has excellent chemical stability, is corrosion resistant, and prevents ink from seeping out. PE protective film is relatively soft and has a certain degree of stretchability, which can play a role in dust prevention. OPP protective film has high hardness and a certain degree of flame retardancy, which protects the inner material. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 3 This is a partial three-dimensional structural diagram of the present invention;
[0019] Figure 4 This is a partial three-dimensional structural diagram of the present invention.
[0020] In the diagram: 1. Hot stamping film; 2. Ink printing layer; 3. Hot melt adhesive layer; 4. Heat-resistant layer; 5. Anti-seepage layer; 6. Backing layer one; 7. Backing layer two. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1-4 This utility model provides a technical solution: an inner heat transfer one-way vision film, including a hot stamping film 1, an ink printing layer 2 on the outer side of the hot stamping film 1, and the hot stamping film 1 is a blown PE film.
[0023] A hot melt adhesive layer 3 is disposed on the outer side of the ink printing layer 2. A heat-resistant layer 4, made of polyimide film, is disposed on the outer side of the hot melt adhesive layer 3. An impermeable layer 5, made of HDPE film, is disposed on the outer side of the heat-resistant layer 4. A backing layer 1, made of PE protective film, is disposed on the outer side of the impermeable layer 5. A second backing layer 2, made of OPP protective film, is disposed on the outer side of the backing layer 1. When using an inner heat transfer one-way vision film, the ink printing layer 2 is transferred to the inner heat transfer one-way vision film using the combined action of heat and pressure. On the outer surface of the product, hot melt adhesive permanently bonds the entire ink printing layer 2 to the product. The polyimide film has excellent high and low temperature resistance. When the polyimide film is heated, it is difficult to break. It can seal the odor generated by the heat of the material inside. The HDPE film has excellent chemical stability, can resist corrosion, and prevent the ink inside from seeping out. The PE protective film is relatively soft and has a certain degree of stretchability, which can play a role in dust prevention. The OPP protective film has high hardness and a certain degree of flame retardancy, which can protect the material inside.
[0024] Working principle: When using an internal heat transfer one-way vision film, the combined action of heat and pressure transfers the ink printing layer 2 to the outer surface of the product. Hot melt adhesive permanently bonds the entire ink printing layer 2 to the product. The polyimide film has excellent high and low temperature resistance, and it is difficult to break when heated, thus sealing in the odor generated by the heated material inside. The HDPE film has excellent chemical stability, is corrosion resistant, and prevents the ink from seeping out. The PE protective film is relatively soft and has a certain degree of stretchability, which can play a role in dust prevention. The OPP protective film has high hardness and a certain degree of flame retardancy, which protects the material inside.
[0025] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.
Claims
1. An internally laminated heat transfer one-way vision film, comprising a hot stamping film (1), characterized in that: The hot stamping film (1) has an ink printing layer (2) on its outer side, and the hot stamping film (1) is a blown PE film.
2. The internally laminated heat transfer one-way vision film according to claim 1, characterized in that: A hot melt adhesive layer (3) is provided on the outside of the ink printing layer (2), and a heat-resistant layer (4) is provided on the outside of the hot melt adhesive layer (3).
3. The internally laminated heat transfer one-way vision film according to claim 2, characterized in that: The heat-resistant layer (4) is made of polyimide film, and an impermeable layer (5) is provided on the outside of the heat-resistant layer (4).
4. The internally laminated heat transfer one-way vision film according to claim 3, characterized in that: The impermeable layer (5) is made of HDPE membrane, and a backing layer (6) is provided on the outside of the impermeable layer (5).
5. The internally laminated heat transfer one-way vision film according to claim 4, characterized in that: The first backing layer (6) is made of PE protective film, and the second backing layer (7) is provided on the outside of the first backing layer (6), which is made of OPP protective film.