Sun-shading and projection dual-purpose environment-friendly vehicle-mounted curtain and preparation method thereof

Abstract

The invention relates to the field of vehicle-mounted curtain preparation, and particularly discloses a sun-shading and projection dual-purpose environment-friendly vehicle-mounted curtain and a preparation method thereof.The sun-shading and projection dual-purpose environment-friendly vehicle-mounted curtain comprises a 500-mesh base cloth in the middle, the front face and the back face of the base cloth are each provided with two PVC layers, the inner layer is a projection face, and the projection face is coated with pigment-free PVC primary pulp; according to the design, no glue is used in the production process, so that harmful substances cannot be volatilized into the air, the adopted PVC primary pulp is environmentally friendly and reaches the standard, the connection strength between the layers is high, the service life of the PVC primary pulp is prolonged, the service life of the PVC primary pulp is prolonged, the service life of the PVC primary pulp is prolonged, the service life of the PVC primary pulp is prolonged, and the service life of the PVC primary pulp is prolonged. Therefore, the sun-shading device can be used for sun shading and projection and can meet various use requirements.

Description

Technical Field

[0001] The invention relates to the field of vehicle-mounted screen preparation, and in particular to an environmentally friendly vehicle-mounted screen for sunshade and projection and a preparation method thereof. Background Art

[0002] The car screen is a projection screen designed specifically for cars. It is generally made of white corrugated fiber, warp knitting or white plastic. White corrugated fiber is resistant to high temperatures and deformation, and the picture is delicate, smooth, clear and bright, making it a better choice; warp knitting has certain toughness and strength, but may be slightly inferior to white corrugated fiber in picture quality; and white plastic is softer in texture and relatively economical, but may not be as good as the former two in terms of high temperature resistance and deformation resistance. It is usually used to watch videos, movies or engage in other entertainment activities in the car. Car screens are usually designed to be lighter, easy to store and carry, do not take up too much space in the car, and are convenient to use in different vehicles or locations. The installation process is simple and quick. Most car screens can be fixed in appropriate positions in the car by suction cups, hooks, etc., without the need for complex tools and expertise.

[0003] The car screen has three types: driver's seat hanging type, middle car hanging type and trunk hanging type. Driver's seat hanging type: This is the most common type, including hanging shaft type and rope type. The hanging shaft type is more considerate, mostly using aluminum alloy screen shaft, which is light and strong and not easy to rust. The storage is smooth and automatic. Press the storage button to automatically retract the screen. The hanging ring adopts a loose movable design and can be moved left and right, which is convenient for female users to install, and there is no need to worry about the width of the car; the middle car hanging type: It is suitable for large vehicles such as SUVs and MPVs, but it is less used than the driver's seat hanging type; the trunk hanging type: In traditional concepts, many people believe that the car projection should hang the screen on the trunk, and people watch it outside the car, but now some users will choose this way to watch in the car.

[0004] However, the traditional dual-purpose screen is a projection cloth and a sunshade cloth bonded together with glue. However, since the glue will emit harmful substances into the air during daily use, and the interior of the car is in a sealed state for a long time, the traditional dual-purpose screen cannot meet the environmental protection requirements for use in the car. In addition, the adhesion of the glue is limited and the effective time is short. The projection cloth and the sunshade cloth are easy to separate from each other after a certain period of use, which reduces the product quality. Summary of the invention

[0005] The purpose of the present invention is to provide an environmentally friendly dual-purpose vehicle-mounted screen for sunshade and projection and a preparation method thereof, aiming to solve the problem in the prior art that the traditional dual-purpose screen is to bond the projection cloth and the sunshade cloth together with glue. However, since the glue will emit harmful substances into the air during daily use and the interior of the car is in a sealed state for a long time, the traditional dual-purpose screen cannot meet the environmental protection requirements for use in the car. In addition, the adhesion of the glue is limited and the effective time is short. The projection cloth and the sunshade cloth are easily separated from each other after a certain period of use, which reduces the technical problem of product quality.

[0006] To achieve the above-mentioned purpose, the present invention adopts an environmentally friendly dual-purpose vehicle-mounted screen for sunshade and projection, including a 500-mesh base cloth in the middle, and two PVC layers are respectively provided on the front and back sides of the base cloth, wherein the inner layer which is the projection surface is coated with pigment-free PVC paste, and the outer layer which is the sunshade surface is coated with pigmented PVC paste, and adjacent PVC layers and the PVC layer and the base cloth are connected by a connecting structure formed when the liquid PVC paste is solidified.

[0007] The present invention also provides a method for preparing an environmentally friendly vehicle-mounted screen for sunshade and projection, and the method comprises the following steps:

[0008] Step S1, selecting a 500-mesh base fabric of good quality, checking the quality of the 500-mesh base fabric to ensure that it is free of damage, wrinkles, and has a smooth surface, and at the same time, cleaning impurities and dust on the surface of the base fabric with a brush, and preparing the PVC raw material required for the subsequent use;

[0009] Step S2, laying a base fabric on the cleaned workbench, and evenly coating the front side of the base fabric with PVC slurry by smearing, and the thickness of the coating needs to be controlled to maintain consistency;

[0010] Step S3, after the front coating is dry but not completely cured to form a PVC layer, the base fabric is turned over, and the PVC slurry is evenly applied to the back of the base fabric. It should be noted that the coating thickness and uniformity should be consistent with the PVC slurry applied on the front of the base fabric;

[0011] Step S4, applying colorless PVC slurry to the front side of the preliminarily shaped base fabric, while ensuring that the color does not penetrate, checking whether the coating is uniform, and avoiding bubbles and accumulation;

[0012] Step S5, applying the pigmented PVC slurry on the reverse side of the preliminarily shaped base fabric, using a uniform coating technique to ensure uniform color distribution and avoid bubbles and accumulation, and adjusting the coating thickness as needed to achieve the desired color saturation and hiding power;

[0013] Step S6, drying the base fabric coated with the PVC layer by drying, setting a specified drying time and a specified drying temperature according to the type of PVC slurry and the coating thickness, regularly checking the curing of the base fabric during the drying process to ensure that the four PVC layers are thoroughly cured and there are no quality problems. After the drying is completed, take out the base fabric and let it cool naturally to room temperature, and then inspect and package it.

[0014] Wherein, in step S1, the base fabric is made of industrial polyester yarn.

[0015] Wherein, in step S2 and step S3, the thickness of the PVC layer is 0.1 mm to 0.07 mm.

[0016] Among them, in step S2, step S3, step S4 and step S5, the PVC slurry is applied by one or more combinations of blade coating, roller coating and spraying.

[0017] Wherein, in step S4 and step S5, the colorless PVC stock is prepared from PVC resin powder, plasticizer, stabilizer, lubricant, impact resistant agent, flame retardant and filler; the pigmented PVC stock is prepared from PVC resin powder, plasticizer, stabilizer, lubricant, impact resistant agent, flame retardant, filler, pigment, pigment dispersant, solvent and antioxidant.

[0018] Wherein, in step S4 and step S5, the colorless PVC stock is white, and the pigmented PVC stock is black.

[0019] Wherein, in step S6, the drying method is one or a combination of an oven and a drying tunnel.

[0020] Wherein, in step S6, the drying time is 1 to 2 hours, and the drying temperature is 65°C to 85°C.

[0021] The invention discloses an environmentally friendly sunshade and projection dual-purpose vehicle-mounted screen and a preparation method thereof, comprising a 500-mesh base fabric in the middle, wherein two PVC layers are arranged on the front and back sides of the base fabric, wherein the inner layer as the projection surface is coated with a pigment-free PVC original paste, and the outer layer as the sunshade surface is coated with a pigmented PVC original paste, and adjacent PVC layers and the PVC layer and the base fabric are connected by a connecting structure formed when the liquid PVC original paste is solidified. The design does not use glue in the production process, so that no harmful substances will be volatilized into the air, and the PVC original paste used is environmentally friendly. The standard is met, and the connection strength between layers is high and it is not easy to split. Therefore, it can be used for sunshade and projection, meeting various usage needs. This effectively solves the problem that the traditional dual-purpose screen is to glue the projection cloth and the sunshade cloth together with glue. However, since the glue will emit harmful substances into the air during daily use, and the interior of the car is in a sealed state for a long time, the traditional dual-purpose screen cannot meet the environmental protection needs of in-car use. In addition, the adhesion of the glue is limited and the effective time is short. The projection cloth and the sunshade cloth are easy to separate from each other after a certain period of use, which reduces the technical problem of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 The invention discloses a process flow chart of a method for preparing an environment-friendly vehicle-mounted screen for sunshade and projection.

[0024] Figure 2 The invention discloses a three-dimensional stereogram of an environment-friendly vehicle-mounted screen for sunshade and projection.

[0025] Figure 3 The invention discloses a sunshade and projection dual-purpose environment-friendly vehicle-mounted screen.

[0026] Figure 4 The present invention Figure 3 A partial enlarged view of point A in the middle.

[0027] 1-base fabric, 2-PVC layer, 3-PVC paste without pigment, 4-PVC paste with pigment. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] See also Figure 1 to Figure 4 The present invention provides an environmentally friendly vehicle-mounted screen for sunshade and projection, comprising a 500-mesh base fabric 1 in the middle, wherein two PVC layers are respectively arranged on the front and back sides of the base fabric 1, wherein the inner layer serving as the projection surface is coated with pigment-free PVC slurry, and the outer layer serving as the sunshade surface is coated with pigmented PVC slurry, and adjacent PVC layers and the PVC layer and the base fabric 1 are connected by a connecting structure formed when the liquid PVC slurry is solidified.

[0030] The present invention also provides a method for preparing an environmentally friendly vehicle-mounted screen for sunshade and projection, and the method comprises the following steps:

[0031] Step S1, selecting a 500-mesh base fabric 1 of good quality, checking the quality of the 500-mesh base fabric 1 to ensure that it is free of damage, wrinkles, and has a smooth surface, and at the same time, cleaning impurities and dust on the surface of the base fabric 1 with a brush, and preparing the PVC raw material required for the subsequent step;

[0032] Step S2, laying the base fabric 1 on the cleaned workbench, and evenly coating the front side of the base fabric 1 with PVC slurry by smearing, and the thickness of the coating needs to be controlled to maintain consistency;

[0033] Step S3, after the front coating is dry but not completely cured to form a PVC layer, turn over the base fabric 1, and evenly apply PVC slurry on the back of the base fabric 1. It should be noted that the coating thickness and uniformity should be consistent with the PVC slurry applied on the front of the base fabric 1;

[0034] Step S4, coating the front side of the preliminarily shaped base fabric 1 with colorless PVC stock, while ensuring that the color does not penetrate, checking whether the coating is uniform, and avoiding bubbles and accumulation;

[0035] Step S5, coating the back surface of the preliminarily shaped base fabric 1 with PVC slurry with pigment, using a uniform coating technique to ensure uniform color distribution and avoid bubbles and accumulation, and adjusting the coating thickness as needed to achieve the desired color saturation and hiding power;

[0036] Step S6, drying the base fabric 1 coated with the PVC layer by drying, setting a specified drying time and a specified drying temperature according to the type of PVC slurry and the coating thickness, regularly checking the curing of the base fabric 1 during the drying process to ensure that the four PVC layers are thoroughly cured and there are no quality problems. After the drying is completed, take out the base fabric 1 and let it cool naturally to room temperature, and then inspect and package it.

[0037] Furthermore, in step S1, the base fabric 1 is made of industrial polyester yarn. The industrial polyester yarn has high strength and wear resistance, and can maintain the structural stability and service life of the curtain for a long time.

[0038] Furthermore, in step S2 and step S3, the thickness of the PVC layer is 0.1 mm to 0.07 mm.

[0039] Furthermore, in step S2, step S3, step S4 and step S5, the PVC slurry is coated by one or more combinations of blade coating, roller coating and spraying.

[0040] Furthermore, in step S4 and step S5, the colorless PVC stock is prepared from PVC resin powder, plasticizer, stabilizer, lubricant, impact resistant agent, flame retardant and filler; the pigmented PVC stock is prepared from PVC resin powder, plasticizer, stabilizer, lubricant, impact resistant agent, flame retardant, filler, pigment, pigment dispersant, solvent and antioxidant.

[0041] Furthermore, in step S4 and step S5, the colorless PVC pulp is white, and the pigmented PVC pulp is black. By setting the white side as the projection surface, the clarity and color reproduction of the projection picture are guaranteed, and the black side is set as the sunshade surface to effectively block sunlight and ultraviolet rays and reduce the temperature inside the car. The above two structures realize the dual functions of sunshade and projection, and the base cloth 1 is sealed with two PVC layers to prevent the pigmented PVC pulp from penetrating through the base cloth 1 and causing color bleeding.

[0042] Furthermore, in step S6, the drying method is one or a combination of an oven and a drying tunnel.

[0043] Furthermore, in step S6, the drying time is 1 to 2 hours, and the drying temperature is 65°C to 85°C.

[0044] In summary, the present invention is a sunshade and projection dual-purpose environmentally friendly vehicle-mounted screen and a preparation method thereof. The screen of this design adopts a glue-free connection method, which avoids the harmful substances that may be released by the glue in the traditional screen, and meets the environmental protection requirements in the car. The connection between the PVC layers and between the PVC layers and the base cloth 1 is formed by solidifying the liquid PVC slurry, without the use of additional adhesives, further improving the environmental protection performance. At the same time, the preparation method can adjust the color and thickness parameters of the PVC layer according to customer needs to meet the needs of different application scenarios.

[0045] In the present invention, two embodiments are also provided, and specific reference is made to the following:

[0046] Embodiment 1:

[0047] Step S1, selecting a 500-mesh industrial polyester silk base fabric 1 of good quality, checking the quality of the base fabric 1, and cleaning the surface of the base fabric 1;

[0048] Step S2, laying the base fabric 1 on the cleaned workbench, and evenly coating the front side of the base fabric 1 with PVC slurry having a thickness of 0.1 mm by means of a scraper coating method;

[0049] Step S3, after the front coating is dried but not completely cured to form a PVC layer, the base fabric 1 is turned over, and a PVC slurry with a thickness of 0.1 mm is evenly coated on the back side of the base fabric 1 by a scraper coating method;

[0050] Step S4, coating the front side of the preliminarily shaped base fabric 1 with white pigment-free PVC stock to ensure that the color does not penetrate, and checking whether the coating is uniform to avoid bubbles and accumulation;

[0051] Step S5, applying dark blue pigmented PVC slurry on the reverse side of the preliminarily shaped base fabric 1, using a uniform coating technique to ensure uniform color distribution and avoid bubbles and accumulation;

[0052] Step S6, drying the base fabric 1 coated with the PVC layer by a combination of an oven and a drying tunnel, the drying time is 1.5 hours, the drying temperature is 75°C, and the curing condition of the base fabric 1 is checked regularly during the drying process to ensure that the four PVC layers are thoroughly cured and there are no quality problems. After the drying is completed, the base fabric 1 is taken out and allowed to cool naturally to room temperature, and then inspected and packaged.

[0053] Embodiment 2:

[0054] Step S1, selecting a 500-mesh industrial polyester silk base fabric 1 of good quality, checking the quality of the base fabric 1, and cleaning the surface of the base fabric 1;

[0055] Step S2, laying the base fabric 1 on the cleaned workbench, and evenly coating the front side of the base fabric 1 with PVC slurry having a thickness of 0.1 mm by means of a scraper coating method;

[0056] Step S3, after the front coating is dried but not completely cured to form a PVC layer, the base fabric 1 is turned over, and a PVC slurry with a thickness of 0.1 mm is evenly coated on the back side of the base fabric 1 by a scraper coating method;

[0057] Step S4, coating the front side of the preliminarily shaped base fabric 1 with white pigment-free PVC stock, wherein the PVC stock is prepared from PVC resin powder, plasticizer, stabilizer, lubricant, impact resistant agent, flame retardant and filler;

[0058] Step S5, coating the reverse side of the preliminarily shaped base fabric 1 with green pigmented PVC stock, wherein the PVC stock is prepared from PVC resin powder, plasticizer, stabilizer, lubricant, impact resistant agent, flame retardant, filler, pigment, pigment dispersant, solvent and antioxidant;

[0059] Step S6, drying the base fabric 1 coated with the PVC layer in an oven for 2 hours at a temperature of 85°C to ensure that the four PVC layers are completely cured and there are no quality problems. After drying, take out the base fabric 1 and let it cool naturally to room temperature, and then inspect and package it.

[0060] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. An environmentally friendly vehicle-mounted screen for sunshade and projection, characterized in that: It includes a 500-mesh base cloth in the middle, and two PVC layers are arranged on the front and back sides of the base cloth respectively. The inner layer which is the projection surface is coated with pigment-free PVC pulp, and the outer layer which is the sunshade surface is coated with pigmented PVC pulp. Adjacent PVC layers and the PVC layer and the base cloth are connected by a connecting structure formed when the liquid PVC pulp is solidified.

2. A method for preparing an environmentally friendly vehicle-mounted screen for sunshade and projection, comprising preparing the environmentally friendly vehicle-mounted screen for sunshade and projection as claimed in claim 1, characterized in that: The steps include: Step S1, selecting a 500-mesh base fabric of good quality, checking the quality of the 500-mesh base fabric to ensure that it is free of damage, wrinkles, and has a smooth surface, and at the same time, cleaning impurities and dust on the surface of the base fabric with a brush, and preparing the PVC raw material required for the subsequent use; Step S2, laying a base fabric on the cleaned workbench, and evenly coating the front side of the base fabric with PVC slurry by smearing, and the thickness of the coating needs to be controlled to maintain consistency; Step S3, after the front coating is dry but not completely cured to form a PVC layer, the base fabric is turned over, and the PVC slurry is evenly applied to the back of the base fabric. It should be noted that the coating thickness and uniformity should be consistent with the PVC slurry applied on the front of the base fabric; Step S4, applying colorless PVC slurry to the front side of the preliminarily shaped base fabric, while ensuring that the color does not penetrate, checking whether the coating is uniform, and avoiding bubbles and accumulation; Step S5, applying the pigmented PVC slurry on the reverse side of the preliminarily shaped base fabric, using a uniform coating technique to ensure uniform color distribution and avoid bubbles and accumulation, and adjusting the coating thickness as needed to achieve the desired color saturation and hiding power; Step S6, drying the base fabric coated with the PVC layer by drying, setting a specified drying time and a specified drying temperature according to the type of PVC slurry and the coating thickness, regularly checking the curing of the base fabric during the drying process to ensure that the four PVC layers are thoroughly cured and there are no quality problems. After the drying is completed, take out the base fabric and let it cool naturally to room temperature, and then inspect and package it.

3. The method for preparing an environmentally friendly vehicle-mounted screen for sunshade and projection as claimed in claim 2, characterized in that: In step S1, the base fabric is made of industrial polyester yarn.

4. The method for preparing an environmentally friendly vehicle-mounted screen for sunshade and projection as claimed in claim 3, characterized in that: In step S2 and step S3, the thickness of the PVC layer is 0.1 mm to 0.07 mm.

5. The method for preparing an environmentally friendly vehicle-mounted screen for sunshade and projection as claimed in claim 4, characterized in that: In step S2, step S3, step S4 and step S5, the PVC slurry is coated by one or more combinations of blade coating, roller coating and spraying.

6. The method for preparing an environmentally friendly vehicle-mounted screen for sunshade and projection as claimed in claim 5, characterized in that: In step S4 and step S5, the colorless PVC stock is prepared from PVC resin powder, plasticizer, stabilizer, lubricant, impact resistant agent, flame retardant and filler; the pigmented PVC stock is prepared from PVC resin powder, plasticizer, stabilizer, lubricant, impact resistant agent, flame retardant, filler, pigment, pigment dispersant, solvent and antioxidant.

7. The method for preparing an environmentally friendly vehicle-mounted screen for sunshade and projection as claimed in claim 6, characterized in that: In step S4 and step S5, the colorless PVC stock is white, and the pigmented PVC stock is black.

8. The method for preparing an environmentally friendly vehicle-mounted screen for sunshade and projection as claimed in claim 7, characterized in that: In step S6, the drying method is one or a combination of an oven and a drying tunnel.

9. The method for preparing an environmentally friendly vehicle-mounted screen for sunshade and projection as claimed in claim 8, characterized in that: In step S6, the drying time is 1 to 2 hours, and the drying temperature is 65°C to 85°C.

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