Double-sided painting inner lamp advertising cloth and preparation process

Abstract

The invention relates to the technical field of advertising materials, in particular to double-sided painting inner lamp advertising cloth and a preparation process thereof. The double-sided painting inner lamp advertising cloth comprises base cloth, a connecting layer, a bottom layer, a top layer and a bottom layer, the polyester fiber composite material comprises the following components in percentage by weight: 80-85% of polyester fiber, 8-12% of silicon dioxide nanoparticles, 2-3% of hindered amine light stabilizer, and the balance of additive and auxiliary agent. According to the double-sided painting inner lamp advertising cloth, the high-light-transmittance polyester fiber cloth serves as a base, the nano zinc oxide and the acrylic acid light diffusion particles are combined, permeation prevention, color brightness and light aging resistance are remarkably improved, the light source utilization efficiency is improved, the service life is effectively prolonged, the preparation technology is simple, convenient and efficient, materials are environmentally friendly and sustainable, and the comprehensive performance is excellent; the high-quality requirement of the modern advertising industry is met, and wide application prospects are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of advertising materials, and more specifically to a double-sided spray-painted internally-lit advertising cloth and a preparation process thereof. Background Art

[0002] In the field of traditional double-sided inkjet advertising cloth, there are generally many challenges: ink penetration causes a decrease in image clarity and insufficient color vividness, which directly affects the visual effect; long-term exposure to strong light sources accelerates the aging of the surface material of the advertising cloth, and the color fades quickly, shortening the effective display cycle of the advertisement; coupled with the low efficiency of light source penetration, it not only wastes energy, but also limits the attractiveness of the advertising cloth at night or in low-light environments. These problems urgently require industry innovation. Therefore, it is urgent to develop a double-sided inkjet internal light advertising cloth and preparation process that can prevent ink penetration, improve the color vividness of the inkjet layer, enhance the attenuation resistance of the illuminated surface, and improve the light source absorption efficiency, so as to significantly improve the quality and durability of advertising display and meet the market demand for high-quality advertising media. Summary of the invention

[0003] The purpose of the present invention is to provide a double-sided inkjet-printed advertising cloth with internal lights and a preparation process. The advertising cloth, through special material ratios and structural design, can prevent ink penetration, improve the color vividness of the inkjet layer, enhance the attenuation resistance of the light-receiving surface, and improve the light source absorption efficiency, thereby meeting the modern advertising industry's demand for high-quality and high-performance advertising materials.

[0004] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: The present invention provides a double-sided inkjet-printed interior light advertising cloth and a preparation process thereof, comprising: The base fabric is provided on the upper and lower surfaces of the connecting layer and is a high-transmittance polyester fiber fabric, and its components by weight percentage are: polyester fiber 80%-85%, silicon dioxide nanoparticles 8%-12%, hindered amine light stabilizer 2%-3%, and the rest additives and auxiliaries; The spray-painted layer is evenly coated on the base fabric on the upper surface of the connecting layer and is precisely formulated by weight percentage of the following components: 65%-70% PVC modified acrylic resin, 20%-25% pigments and additives, and 8%-10% UV-resistant agent; The light-receiving layer is evenly coated on the base fabric on the lower surface of the connecting layer and is precisely prepared by the following components in percentage by weight: 55%-60% polyurethane resin, 12%-15% nano zinc oxide, 20%-25% acrylic light diffusion particles, and 5%-7% additives; The connecting layer is made of a transparent PET film, and its interior is designed as a honeycomb structure. The framework of the honeycomb structure is made of a transparent ethylene-vinyl acetate copolymer and is filled with a light-transmitting base material, which is transparent silica gel.

[0005] As a preferred technical solution of the present invention, the base fabric adopts a mesh structure formed by interweaving fibers, and the pore size of the mesh structure is 0.5 mm to 1.5 mm.

[0006] As a preferred technical solution of the present invention, the additive is a mixture of an antioxidant, an antistatic agent and a leveling agent, and the ratio thereof is: 0.5%-1% antioxidant, 0.3%-0.7% antistatic agent, and 0.2%-0.5% leveling agent.

[0007] As a preferred technical solution of the present invention, the auxiliary agent is a combination of a thickener, a dispersant and a defoamer, and the ratio thereof is: 0.5%-1% thickener, 0.3%-0.8% dispersant, and 0.1%-0.3% defoamer.

[0008] As a preferred technical solution of the present invention, the light-transmitting base material is transparent silica gel, and its viscosity ranges from 1000 cP to 5000 cP.

[0009] As a preferred technical solution of the present invention, the thickness of the base fabric, the spraying layer, the connecting layer and the light-receiving layer are in the following proportional relationship: Base fabric: printing layer: connecting layer: light receiving layer = 10: (1 to 2): (0.3 to 0.7): (0.2 to 0.4).

[0010] The present invention also provides a preparation process of a double-sided inkjet-printed internal light advertising cloth, comprising the following steps: a) preparing a base fabric material: uniformly mixing polyester fibers, silica nanoparticles, hindered amine light stabilizers and the remaining additives and auxiliaries according to the ratio of claim 1, preparing a high light transmittance polyester fiber cloth by melt spinning, and forming a fiber interwoven mesh structure, wherein the pore size of the mesh structure is controlled between 0.5 mm and 1.5 mm; b) preparing a connecting layer: processing a transparent ethylene-vinyl acetate copolymer into a honeycomb structure, the skeleton of which is made of the copolymer, and filling the honeycomb structure with a transparent silica gel having a viscosity ranging from 1000 cP to 5000 cP as a light-transmitting base material; c) coating the spray-painted layer: uniformly coating the spray-painted layer material prepared by mixing PVC modified acrylic resin, pigments and additives, and anti-ultraviolet agents in the proportions described in claim 1 on the upper surface base fabric of the connecting layer, followed by drying and curing treatment; d) coating the light-receiving layer: evenly coating the light-receiving layer material prepared by mixing polyurethane resin, nano zinc oxide, acrylic light-diffusing particles and additives in the proportions described in claim 1 on the base fabric on the lower surface of the connecting layer, and also performing drying and curing treatment; e) Bonding and finishing: Bond the base fabric coated with the inkjet printing layer and the light-receiving layer to the connecting layer containing the honeycomb structure to ensure that the layers are tightly bonded. Finally, cut and finish to obtain the finished double-sided inkjet printing internal light advertising fabric.

[0011] As a preferred technical solution of the present invention, the melt spinning temperature in step a) is 260°C to 280°C, and the spinning speed is 2500m / min to 3500m / min.

[0012] As a preferred technical solution of the present invention, the drying temperature in steps c) and d) is 70°C to 90°C, the time is 20 minutes to 40 minutes, and the curing temperature is 110°C to 130°C, and the time is 1 hour to 2 hours.

[0013] As a preferred technical solution of the present invention, the bonding process in step e) is carried out using hot melt adhesive, the bonding temperature is 130°C to 150°C, the pressure is 0.4MPa to 0.6MPa, and the duration is 30 seconds to 1 minute.

[0014] The beneficial effects of the present invention are as follows: Improved ink penetration resistance: The base fabric is made of highly light-transmitting polyester fiber cloth and added with silica nanoparticles, which significantly improves the density and surface smoothness of the material, effectively preventing the penetration of ink during the printing process, thereby maintaining the high clarity of the image and the accuracy of color.

[0015] Enhanced color vividness and stability: The printing layer uses PVC modified acrylic resin as the matrix, combined with high-quality pigments and UV inhibitors, making the printing layer colorful, durable and not easy to fade. Even when exposed to outdoor environments for a long time, it can maintain the visual appeal of the advertisement.

[0016] Excellent light aging resistance: By adding hindered amine light stabilizers to the base fabric and introducing nano zinc oxide and acrylic light diffusion particles into the light-receiving layer, these ingredients work together to greatly enhance the material's UV resistance, effectively slowing down the material's aging and degradation process caused by light, and significantly extending the service life of the advertising fabric.

[0017] Improved light source utilization efficiency: The honeycomb structure design of the connecting layer, combined with the filling of transparent silicone, not only enhances the structural strength of the material, but also improves the transmission efficiency and uniformity of the light source inside the advertising cloth through the refraction, reflection and scattering of light, allowing the advertisement to show good visual effects at night or in low light environments.

[0018] The special design of the light-receiving layer prolongs its life: the nano zinc oxide in the light-receiving layer acts as a photocatalyst, which can absorb and convert ultraviolet energy, reducing direct damage to the material; while the acrylic light-diffusing particles scatter light, making it evenly distributed inside the material and reducing local overheating. The combined effect of the two further slows down performance degradation and significantly extends the overall service life of the advertising cloth.

[0019] Superior overall performance: This advertising cloth combines multiple advantages such as high light transmittance, anti-permeability, color stability, light aging resistance and efficient light source utilization, meeting the modern advertising industry's stringent requirements for high-quality, high-performance advertising materials and has broad market application prospects.

[0020] Environmental protection and sustainability: During the preparation process, environmentally friendly materials and additives are selected to reduce the emission of harmful substances, which is in line with the current concept of environmental protection and sustainable development.

[0021] The preparation process is simple and efficient: through melt spinning, coating, drying, curing, bonding and other steps, the rapid preparation of advertising cloth is achieved, and the parameters of each step are optimized to improve production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention; Figure numerals: 1-spraying layer, 2-base cloth, 3-light-receiving layer, 4-honeycomb structure, 5-light-transmitting base material, 6-connecting layer. DETAILED DESCRIPTION

[0023] Reference Figure 1 As shown, in order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: The present invention provides a double-sided inkjet-printed interior light advertising cloth and a preparation process thereof, comprising: The base fabric is provided on the upper and lower surfaces of the connecting layer and is a high-transmittance polyester fiber fabric, and its components by weight percentage are: polyester fiber 80%-85%, silicon dioxide nanoparticles 8%-12%, hindered amine light stabilizer 2%-3%, and the rest additives and auxiliaries; The spray-painted layer is evenly coated on the base fabric on the upper surface of the connecting layer and is precisely formulated by weight percentage of the following components: 65%-70% PVC modified acrylic resin, 20%-25% pigments and additives, and 8%-10% UV-resistant agent; The light-receiving layer is evenly coated on the base fabric on the lower surface of the connecting layer and is precisely prepared by the following components in percentage by weight: 55%-60% polyurethane resin, 12%-15% nano zinc oxide, 20%-25% acrylic light diffusion particles, and 5%-7% additives; The connecting layer is made of a transparent PET film, and its interior is designed as a honeycomb structure. The framework of the honeycomb structure is made of a transparent ethylene-vinyl acetate copolymer and is filled with a light-transmitting base material, which is transparent silica gel.

[0024] The base fabric adopts a mesh structure formed by interweaving fibers, and the pore size of the mesh structure is 0.5 mm to 1.5 mm.

[0025] The additive is a mixture of an antioxidant, an antistatic agent and a leveling agent, and the ratio is: antioxidant 0.5%-1%, antistatic agent 0.3%-0.7%, leveling agent 0.2%-0.5%.

[0026] The auxiliary agent is a combination of a thickener, a dispersant and a defoamer, and the ratio is: thickener 0.5%-1%, dispersant 0.3%-0.8%, defoamer 0.1%-0.3%.

[0027] Wherein, the light-transmitting base material is transparent silica gel, and its viscosity ranges from 1000 cP to 5000 cP.

[0028] The thickness of the base fabric, the spraying layer, the connecting layer and the light receiving layer are in the following proportional relationship: Base fabric: printing layer: connecting layer: light receiving layer = 10: (1 to 2): (0.3 to 0.7): (0.2 to 0.4).

[0029] The present invention also provides a preparation process of a double-sided inkjet-printed internal light advertising cloth, comprising the following steps: a) preparing a base fabric material: uniformly mixing polyester fibers, silica nanoparticles, hindered amine light stabilizers and the remaining additives and auxiliaries according to the ratio of claim 1, preparing a high light transmittance polyester fiber cloth by melt spinning, and forming a fiber interwoven mesh structure, wherein the pore size of the mesh structure is controlled between 0.5 mm and 1.5 mm; b) preparing a connecting layer: processing a transparent ethylene-vinyl acetate copolymer into a honeycomb structure, the skeleton of which is made of the copolymer, and filling the honeycomb structure with a transparent silica gel having a viscosity ranging from 1000 cP to 5000 cP as a light-transmitting base material; c) coating the spray-painted layer: uniformly coating the spray-painted layer material prepared by mixing PVC modified acrylic resin, pigments and additives, and anti-ultraviolet agents in the proportions described in claim 1 on the upper surface base fabric of the connecting layer, followed by drying and curing treatment; d) coating the light-receiving layer: evenly coating the light-receiving layer material prepared by mixing polyurethane resin, nano zinc oxide, acrylic light-diffusing particles and additives in the proportions described in claim 1 on the base fabric on the lower surface of the connecting layer, and also performing drying and curing treatment; e) Bonding and finishing: Bond the base fabric coated with the inkjet printing layer and the light-receiving layer to the connecting layer containing the honeycomb structure to ensure that the layers are tightly bonded. Finally, cut and finish to obtain the finished double-sided inkjet printing internal light advertising fabric.

[0030] Wherein, the melt spinning temperature in step a) is 260°C to 280°C, and the spinning speed is 2500m / min to 3500m / min.

[0031] Wherein, the drying temperature in steps c) and d) is 70°C to 90°C, the time is 20 minutes to 40 minutes, and the curing temperature is 110°C to 130°C, and the time is 1 hour to 2 hours.

[0032] Wherein, the bonding process in step e) is carried out using hot melt adhesive, the bonding temperature is 130°C to 150°C, the pressure is 0.4MPa to 0.6MPa, and the duration is 30 seconds to 1 minute.

[0033] Related reactions and working principles: Material ratio and reaction Base fabric material: Polyester fiber: Made through the polycondensation reaction of polyester monomers (such as dimethyl terephthalate and ethylene glycol) to form a polymer chain; polyester fiber itself has good light transmittance and mechanical strength; Silica nanoparticles: As an additive, they are added to polyester fibers through physical mixing to enhance the light transmittance and wear resistance of the material, while also improving its UV resistance; Hindered amine light stabilizers: mixed directly during the manufacturing process, they prevent material degradation due to UV exposure by absorbing UV energy and converting it into harmless heat; Additives and auxiliaries (such as antioxidants, antistatic agents, leveling agents): These chemical additives are mixed with polyester fibers during processing to improve the processing and performance of the material through physical adsorption or chemical reaction; Spraying layer: PVC modified acrylic resin: Through the copolymerization or grafting modification reaction of PVC and acrylic resin, the weather resistance and adhesion of the resin are improved, providing a stable carrier for the pigment; Pigments and additives: Pigments are directly dispersed in the resin to form a uniform color layer; additives (such as UV inhibitors) are added through physical mixing to improve the weather resistance and color stability of the spray-painted layer; Light receiving layer: Polyurethane resin: As a base material, it has good flexibility and light transmittance; Nano zinc oxide: added by physical mixing, using its photocatalytic properties to further enhance the material's UV resistance and light stability; Acrylic light diffusion particles: Evenly distributed in the resin through physical mixing, the light is scattered inside the material, improving the absorption efficiency of the light source and the uniformity of light distribution; Structural design and working principle Honeycomb structure design: The connecting layer uses a transparent PET film as the base material, and the internal design is a honeycomb structure; this structure not only improves the overall strength of the material, but also enhances the refraction and reflection of light through its unique air layer design, thereby improving the utilization efficiency of the light source; The honeycomb structure skeleton is made of transparent ethylene-vinyl acetate copolymer, which ensures the transparency and stability of the structure; the filled transparent silica gel is used as a light-transmitting base material to further enhance the light transmission performance; Light transmission and absorption: When light is irradiated from the light-receiving layer, the nano zinc oxide and acrylic light-diffusing particles work together to scatter and refract the light inside the material, thus improving the uniform distribution of light; The light passes through the air layer of the honeycomb structure and the light-transmitting silicone base material, and is further refracted and reflected, which enhances the efficiency of light utilization; finally, the light is irradiated through the spray-painted layer, presenting bright colors and uniform light and shadow effects; Performance improvements: Highly transparent polyester fiber cloth is used as the base cloth, which effectively prevents ink penetration and ensures the clarity and color stability of the printing layer; The excellent performance of PVC modified acrylic resin and polyurethane resin improves the color vividness and weather resistance of the spray painting layer and the light receiving layer; The addition of nano zinc oxide and hindered amine light stabilizers enhances the material's UV resistance and light stability, extending the service life of the advertising cloth; In summary, the double-sided inkjet-printed internally-lit advertising cloth of the present invention achieves the effects of preventing ink penetration, improving color vividness, enhancing attenuation resistance, and improving light source absorption efficiency through special material ratios and structural designs, thus meeting the needs of the modern advertising industry for high-quality, high-performance advertising materials. Embodiment 1

[0034] Material ratio and preparation Base fabric: Polyester: 82% Silica nanoparticles: 10% Hindered amine light stabilizer: 3% Additives and auxiliary agents: 5% (including 0.8% antioxidant, 0.5% antistatic agent, 0.2% leveling agent, and the rest are other auxiliary agents) It was prepared by melt spinning with a spinning temperature of 270°C and a spinning speed of 3000 m / min to form a mesh structure with a pore size of 1.0 mm.

[0035] Connection layer: The transparent PET film is used as the base material, the interior is designed as a honeycomb structure, and the skeleton is made of transparent ethylene-vinyl acetate copolymer.

[0036] The filled light-transmitting base material is transparent silicone with a viscosity of 3000cP.

[0037] Spraying layer: PVC modified acrylic resin: 68% Pigments and additives: 22% Anti-ultraviolet agent: 10% Evenly apply it on the base fabric on the upper surface of the connecting layer, the drying temperature is 80°C, the time is 30 minutes, and the curing temperature is 120°C, the time is 1.5 hours.

[0038] Light receiving layer: Polyurethane resin: 58% Nano zinc oxide: 14% Acrylic light diffusion particles: 25% Additives: 3% (including 0.7% thickener, 0.8% dispersant, 0.2% defoamer) Evenly apply it on the base fabric on the lower surface of the connecting layer, and the drying and curing conditions are the same as those of the spray-painted layer.

[0039] Experimental data Permeation resistance test: The penetration test was carried out using standard ink, and the results showed no ink penetration, proving that the base fabric material has good permeation resistance.

[0040] Color vividness test: Use a color analyzer to measure the color vividness of the printing layer. The results show that the color vividness is 20% higher than that of traditional advertising cloth.

[0041] Light aging test: After 1000 hours of exposure to simulated strong light conditions, the color change before and after the test was less than 5%, proving that the material has excellent light aging resistance.

[0042] Light source absorption efficiency test: The light source absorption efficiency was measured using a photometer, and the results showed a 15% improvement over traditional advertising cloth. Embodiment 2

[0043] Material ratio and preparation Base fabric: Polyester: 85% Silica nanoparticles: 8% Hindered amine light stabilizer: 2% Additives and auxiliary agents: 5% (same ratio as in Example 1) The preparation conditions were the same as those in Example 1, and a mesh structure with a pore size of 0.8 mm was formed.

[0044] The ratio and preparation conditions of the connecting layer, the spraying layer and the light-receiving layer are similar to those in Example 1, but are slightly adjusted to optimize the performance.

[0045] Experimental data Anti-penetration test: There is also no ink penetration, proving that the anti-penetration property of the base fabric material is stable and reliable.

[0046] Color vividness test: the color vividness is improved by 25% compared with the traditional advertising cloth, which is better than the first embodiment.

[0047] Light aging test: Under the same test conditions, the color change is less than 4%, and the light aging performance is even better.

[0048] Light source absorption efficiency test: The light source absorption efficiency is improved by 18% compared with the traditional advertising cloth, and is also improved compared with the first embodiment.

[0049] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A double-sided inkjet-printed advertising cloth with internal lights, characterized in that: Included are: The base fabric is provided on the upper and lower surfaces of the connecting layer and is a high-transmittance polyester fiber fabric, and its components by weight percentage are: polyester fiber 80%-85%, silicon dioxide nanoparticles 8%-12%, hindered amine light stabilizer 2%-3%, and the rest additives and auxiliaries; The spray-painted layer is evenly coated on the base fabric on the upper surface of the connecting layer and is precisely formulated by weight percentage of the following components: 65%-70% PVC modified acrylic resin, 20%-25% pigments and additives, and 8%-10% UV-resistant agent; The light-receiving layer is evenly coated on the base fabric on the lower surface of the connecting layer and is precisely prepared by the following components in percentage by weight: 55%-60% polyurethane resin, 12%-15% nano zinc oxide, 20%-25% acrylic light diffusion particles, and 5%-7% additives; The connecting layer is made of a transparent PET film, and its interior is designed as a honeycomb structure. The framework of the honeycomb structure is made of a transparent ethylene-vinyl acetate copolymer and is filled with a light-transmitting base material, which is transparent silica gel.

2. The double-sided inkjet-printed interior light advertising cloth according to claim 1, characterized in that: The base fabric adopts a mesh structure formed by interweaving fibers, and the aperture size of the mesh structure is 0.5mm to 1.5mm.

3. The double-sided inkjet-printed interior light advertising cloth according to claim 1, characterized in that: The additive is a mixture of an antioxidant, an antistatic agent and a leveling agent, and the ratio thereof is: 0.5%-1% antioxidant, 0.3%-0.7% antistatic agent, and 0.2%-0.5% leveling agent.

4. The double-sided inkjet-printed interior light advertising cloth according to claim 1, characterized in that: The auxiliary agent is a combination of a thickener, a dispersant and a defoamer, and the ratio thereof is: 0.5%-1% thickener, 0.3%-0.8% dispersant, and 0.1%-0.3% defoamer.

5. The double-sided inkjet-printed interior light advertising cloth according to claim 1, characterized in that: The light-transmitting base material is transparent silica gel, and its viscosity ranges from 1000 cP to 5000 cP.

6. The double-sided inkjet-printed interior light advertising cloth according to claim 1, characterized in that: The thickness of the base fabric, the spraying layer, the connecting layer and the light receiving layer are in the following proportional relationship: Base fabric: printing layer: connecting layer: light receiving layer = 10: (1 to 2): (0.3 to 0.7): (0.2 to 0.4).

7. A preparation process for double-sided inkjet-printed interior light advertising cloth, characterized in that: The following steps are involved: a) preparing a base fabric material: uniformly mixing polyester fibers, silica nanoparticles, hindered amine light stabilizers and the remaining additives and auxiliaries according to the ratio of claim 1, preparing a high light transmittance polyester fiber cloth by melt spinning, and forming a fiber interwoven mesh structure, wherein the pore size of the mesh structure is controlled between 0.5 mm and 1.5 mm; b) preparing a connecting layer: processing a transparent ethylene-vinyl acetate copolymer into a honeycomb structure, the skeleton of which is made of the copolymer, and filling the honeycomb structure with a transparent silica gel having a viscosity ranging from 1000 cP to 5000 cP as a light-transmitting base material; c) coating the spray-painted layer: uniformly coating the spray-painted layer material prepared by mixing PVC modified acrylic resin, pigments and additives, and anti-ultraviolet agents in the proportions described in claim 1 on the upper surface base fabric of the connecting layer, followed by drying and curing treatment; d) coating the light-receiving layer: evenly coating the light-receiving layer material prepared by mixing polyurethane resin, nano zinc oxide, acrylic light-diffusing particles and additives in the proportions described in claim 1 on the base fabric on the lower surface of the connecting layer, and also performing drying and curing treatment; e) Bonding and finishing: Bond the base fabric coated with the inkjet printing layer and the light-receiving layer to the connecting layer containing the honeycomb structure to ensure that the layers are tightly bonded. Finally, cut and finish to obtain the finished double-sided inkjet printing internal light advertising fabric.

8. The process for preparing a double-sided inkjet-printed interior light advertising cloth according to claim 7, characterized in that: The melt spinning temperature in step a) is 260°C to 280°C, and the spinning speed is 2500m / min to 3500m / min.

9. The process for preparing a double-sided inkjet-printed interior light advertising cloth according to claim 7, characterized in that: The drying temperature in steps c) and d) is 70°C to 90°C, the time is 20 minutes to 40 minutes, and the curing temperature is 110°C to 130°C, the time is 1 hour to 2 hours.

10. The process for preparing a double-sided inkjet-printed interior light advertising cloth according to claim 7, characterized in that: The bonding process in step e) is carried out using hot melt adhesive, with a bonding temperature of 130°C to 150°C, a pressure of 0.4MPa to 0.6MPa, and a duration of 30 seconds to 1 minute.

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