Antibacterial and deodorizing type light shielding roller blind and method for manufacturing the same

Abstract

This invention discloses an antibacterial and deodorizing blackout roller blind and its preparation method, relating to the field of blackout roller blind technology. First, modified functional fillers are prepared by esterification of the hydroxyl groups on the surfaces of activated nano-silver and activated nano-titanium dioxide with 3-bromopropionic acid. These modified functional fillers are then melt-blended and spun with nylon to prepare a functional base fabric. The introduction of silver and titanium dioxide functional fillers endows the functional base fabric with antibacterial and deodorizing functions. Second, using isocyanate-terminated polyurethane prepolymer as a binder, the functional base fabric, the blackout layer, and the functional base fabric are bonded into a three-layer structure. Ethanolamine vapor is then introduced for curing to prepare the antibacterial and deodorizing blackout roller blind. The ethanolamine vapor can react with the halogenated hydrocarbons on the surface of the functional fillers to obtain amino-containing derivatives, further improving the antibacterial properties of the roller blind. It can also undergo a carbamate reaction with the isocyanate-terminated polyurethane prepolymer binder to form a three-dimensional network cross-linked structure, which is then cured, enhancing the bonding performance of the three-layer structure.

Description

Technical Field

[0001] This invention relates to the field of blackout roller blind technology, specifically to an antibacterial and deodorizing blackout roller blind and its preparation method. Background Technology

[0002] In daily life, blackout roller blinds are essential household items. However, prolonged exposure to indoor air makes them prone to absorbing dust, breeding bacteria, and absorbing odors from human metabolism or harmful gases like formaldehyde and ammonia, affecting the hygiene and comfort of the living environment. Furthermore, traditional blinds generally lack antibacterial and deodorizing functions or have only a short-lived effect. Ordinary cotton, polyester and other fabrics do not have antibacterial and deodorizing capabilities. They are prone to mold and odor in humid environments, making them particularly unsuitable for places with high hygiene requirements, such as hospitals and maternity rooms. Some products use coatings to add antibacterial agents or fragrances to mask odors, but antibacterial agents are easily washed off by water and friction, and fragrances only mask the smell and cannot decompose harmful substances. Furthermore, the coatings may release VOCs such as formaldehyde, which is not environmentally friendly.

[0003] Therefore, developing an antibacterial and deodorizing blackout roller blind product has become an urgent problem to be solved. Summary of the Invention

[0004] The purpose of this invention is to provide an antibacterial and deodorizing blackout roller blind and its preparation method, so as to solve the problems existing in the prior art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an antibacterial and deodorizing light-blocking roller blind, wherein the light-blocking roller blind is prepared by bonding a functional base fabric, a light-blocking layer and a functional base fabric together with an adhesive to form a three-layer structure, and then reacting it with ethanolamine vapor; The functional base fabric is prepared by melt blending and spinning modified functional fillers with nylon; The modified functional filler is prepared by introducing 3-bromopropionic acid into the surface of nano-silver and nano-titanium dioxide through an esterification reaction.

[0006] Furthermore, the adhesive is an isocyanate-terminated polyurethane prepolymer.

[0007] Furthermore, the light-shielding layer is a TPU ultra-thin black film.

[0008] Furthermore, a method for preparing an antibacterial and deodorizing blackout roller blind includes the following preparation steps: (1) Mix activated nano-functional particles, 3-bromopropionic acid, N,N-dimethylformamide and p-toluenesulfonic acid, heat to 80~110℃, stir and react for 6~8h, and filter to obtain modified functional filler. (2) Nylon chips, functional fillers, antioxidant 1010, ultraviolet absorber UV-531 and calcium stearate are mixed and melt-spun in a twin-screw extruder to weave functional base fabric; (3) Using isocyanate-terminated polyurethane prepolymer as an adhesive, the functional base fabric, the light-blocking layer and the functional base fabric are bonded together in sequence to obtain the roller blind precursor fabric, ethanolamine vapor is introduced, and then cold-rolled to obtain an antibacterial and deodorizing light-blocking roller blind.

[0009] Furthermore, in step (1), the mass ratio of activated nanofunctional particles, 3-bromopropionic acid, N,N-dimethylformamide, and p-toluenesulfonic acid is 1:1~3:6~8:0.01~0.05; the activated nanofunctional particles include activated nano-silver and activated nano-titanium dioxide in a mass ratio of 1:1; the activated nanofunctional particles are made by mixing nano-silver and titanium dioxide with a particle size of 100nm, and then placing them in a plasma processing device, introducing a mixed gas of argon and hydrogen in a volume ratio of 9:1, and operating at a power of 300W and a vacuum degree of 10. -2 Prepared by processing under Pa conditions for 30 minutes.

[0010] Furthermore, in step (2), the mass ratio of nylon chips, functional fillers, antioxidant 1010, ultraviolet absorber UV-531 and calcium stearate is 100:5~10:0.5~2:0.3~1:0.2~0.8.

[0011] Furthermore, in step (2), the melt spinning process involves melting and plasticizing at a metering pump temperature of 240~260℃, controlling the extrusion zone temperature at 250~270℃, using a multi-hole nozzle with a hole diameter of 0.2~0.35mm and a draw ratio of 3.5~4.8, and then performing secondary stretching at 80~120℃ with a stretching ratio of 1.3~1.8.

[0012] Furthermore, in step (3), the thickness of the TPU ultrathin black film is 0.02 to 0.05 mm.

[0013] Furthermore, the process of introducing ethanolamine vapor in step (3) involves preheating the roller blind precursor fabric to 150°C and introducing ethanolamine vapor for 30 minutes. The ethanolamine vapor uses nitrogen as the carrier gas, with a gas flow rate of 15~30 L / min and a volume fraction of ethanolamine of 5~12%.

[0014] Furthermore, in step (3), the pressure of the pressure rollers during cold rolling is 3.0 MPa.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are: This invention prepares a functional base fabric by adding modified functional fillers to nylon, and uses terminal isocyanate polyurethane prepolymer as a binder to form a three-layer structure consisting of the functional base fabric, a light-shielding layer, and the functional base fabric to prepare an antibacterial and deodorizing light-shielding roller blind, so as to achieve antibacterial and deodorizing effects.

[0016] First, modified functional fillers were prepared by esterification of hydroxyl groups on the surface of activated nano-silver and activated nano-titanium dioxide with 3-bromopropionic acid. The esterification reaction introduced halogenated hydrocarbons into the surface of the functional fillers, which not only improved the compatibility of the functional fillers through organic chain segments, but also left active sites for subsequent reactions. The modified functional fillers were melt-blended and spun with nylon to prepare functional base fabrics. The introduction of silver and titanium dioxide functional fillers gave the functional base fabrics antibacterial and deodorizing functions. Secondly, using isocyanate-terminated polyurethane prepolymer as a binder, the functional base fabric, the light-shielding layer, and the functional base fabric are bonded into a three-layer structure, and then ethanolamine vapor is introduced for curing to prepare an antibacterial and deodorizing light-shielding roller blind. Ethanolamine vapor can react with the halogenated hydrocarbons on the surface of the functional filler to generate amino-containing derivatives, further improving the antibacterial performance of the roller blind. On the other hand, it can undergo a carbamate reaction with the isocyanate-terminated polyurethane prepolymer binder to form a three-dimensional network cross-linked structure for curing, thereby improving the bonding performance of the three-layer structure and extending its service life. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0018] To more clearly illustrate the method provided by the present invention, the following embodiments are provided in detail. The test methods for various indicators of the antibacterial and deodorizing blackout roller blinds produced in the following embodiments are as follows: Antibacterial properties: Antibacterial and deodorizing blackout roller blinds prepared by the same mass of the examples and comparative examples were tested according to GB / T20944.3-2008 "Evaluation of antibacterial properties of textiles - Part 3: Vibration method". The bacteria used for testing were: Escherichia coli ATCC11229 and Staphylococcus aureus ATCC6538.

[0019] Testing standard: Antibacterial and deodorizing blackout roller blinds prepared with the same mass as the example and comparative examples were tested under 315nm ultraviolet light, referring to GB / T 33610.2-2017 "Determination of deodorizing properties of textiles - Part 2: Detection tube method". The sample size was 6 pieces of functional fabric with a diameter of 10 square centimeters. The test gas was ammonia with an initial concentration of 100 μL / L. The ammonia concentration reduction rate was calculated. Example 1

[0020] A method for preparing an antibacterial and deodorizing blackout roller blind includes the following preparation steps: (1) The activated nano-functional particles, 3-bromopropionic acid, N,N-dimethylformamide and p-toluenesulfonic acid are mixed, heated to 80°C, stirred for 6 hours, and filtered to obtain the modified functional filler; the mass ratio of the activated nano-functional particles, 3-bromopropionic acid, N,N-dimethylformamide and p-toluenesulfonic acid in step (1) is 1:1:6:0.01; the activated nano-functional particles include activated nano-silver and activated titanium dioxide in a mass ratio of 1:1, the activated nano-functional particles are made by mixing silver particles with a particle size of 100nm and titanium dioxide, and then placing them in a plasma processing device, introducing a mixed gas of argon and hydrogen in a volume ratio of 9:1, at a power of 300W and a vacuum degree of 10 -2 Prepared under Pa conditions for 30 minutes; (2) Nylon chips, functional fillers, antioxidant 1010, ultraviolet absorber UV-531 and calcium stearate are mixed and melt-spun in a twin-screw extruder to weave a functional base fabric; the mass ratio of the nylon chips, functional fillers, antioxidant 1010, ultraviolet absorber UV-531 and calcium stearate is 100:5:0.5:0.3:0.2; the melt spinning process is to melt and plasticize at a metering pump temperature of 240℃, control the extrusion zone temperature at 250℃, use a multi-hole nozzle with a hole diameter of 0.2mm and a draw ratio of 3.5, and then perform secondary stretching at 80℃ with a stretching ratio of 1.3; (3) Using isocyanate-terminated polyurethane prepolymer as adhesive, with an adhesive application amount of 22 g / m², the functional base fabric, the light-blocking layer and the functional base fabric are bonded together in sequence to obtain the roller blind precursor fabric. Ethanolamine vapor is introduced and then cold-rolled to obtain an antibacterial and deodorizing light-blocking roller blind. The thickness of the TPU ultra-thin black film is 0.02 mm. The process of introducing ethanolamine vapor is to preheat the roller blind precursor fabric to 150°C and introduce ethanolamine vapor for 30 min. The ethanolamine vapor uses nitrogen as the carrier gas, the gas flow rate is 15 L / min, and the volume fraction of ethanolamine is 5%. The pressure of the roller during cold rolling is 3.0 MPa. Example 2

[0021] A method for preparing an antibacterial and deodorizing blackout roller blind includes the following preparation steps: (1) The activated nano-functional particles, 3-bromopropionic acid, N,N-dimethylformamide and p-toluenesulfonic acid are mixed, heated to 90°C, stirred for 6.5 h, and filtered to obtain the modified functional filler; the mass ratio of the activated nano-functional particles, 3-bromopropionic acid, N,N-dimethylformamide and p-toluenesulfonic acid in step (1) is 1:1.5:6.5:0.02; the activated nano-functional particles include activated nano-silver and activated titanium dioxide in a mass ratio of 1:1, the activated nano-functional particles are silver particles with a particle size of 100 nm and titanium dioxide, and then placed in a plasma processing device, and a mixed gas of argon and hydrogen in a volume ratio of 9:1 is introduced, at a power of 300W and a vacuum degree of 10 -2 Prepared under Pa conditions for 30 minutes; (2) Nylon chips, functional fillers, antioxidant 1010, ultraviolet absorber UV-531 and calcium stearate are mixed and melt-spun in a twin-screw extruder to weave a functional base fabric; the mass ratio of the nylon chips, functional fillers, antioxidant 1010, ultraviolet absorber UV-531 and calcium stearate is 100:6:0.8:0.6:0.4; the melt spinning process is to melt and plasticize at a metering pump temperature of 245℃, control the extrusion zone temperature at 255℃, use a multi-hole nozzle with a hole diameter of 0.3mm and a draw ratio of 4.0, and then perform secondary stretching at 90℃ with a stretch ratio of 1.4; (3) Using isocyanate-terminated polyurethane prepolymer as adhesive, with an adhesive application amount of 24 g / m², the functional base fabric, the light-blocking layer and the functional base fabric are bonded together in sequence to obtain the roller blind precursor fabric. Ethanolamine vapor is introduced and then cold-rolled to obtain an antibacterial and deodorizing light-blocking roller blind. The thickness of the TPU ultra-thin black film is 0.03 mm. The process of introducing ethanolamine vapor is to preheat the roller blind precursor fabric to 150°C and introduce ethanolamine vapor for 30 min. The ethanolamine vapor uses nitrogen as the carrier gas, the gas flow rate is 20 L / min, and the volume fraction of ethanolamine is 8%. The pressure of the roller during cold rolling is 3.0 MPa. Example 3

[0022] A method for preparing an antibacterial and deodorizing blackout roller blind includes the following preparation steps: (1) The activated nano-functional particles, 3-bromopropionic acid, N,N-dimethylformamide and p-toluenesulfonic acid are mixed, heated to 95°C, stirred for 7 hours, and filtered to obtain the modified functional filler; the mass ratio of the activated nano-functional particles, 3-bromopropionic acid, N,N-dimethylformamide and p-toluenesulfonic acid in step (1) is 1:2:7:0.03; the activated nano-functional particles include activated nano-silver and activated titanium dioxide in a mass ratio of 1:1, the activated nano-functional particles are made by mixing silver particles with a particle size of 100nm and titanium dioxide, and then placing them in a plasma processing device, introducing a mixed gas of argon and hydrogen in a volume ratio of 9:1, at a power of 300W and a vacuum degree of 10 -2 Prepared under Pa conditions for 30 minutes; (2) Nylon chips, functional fillers, antioxidant 1010, ultraviolet absorber UV-531 and calcium stearate are mixed and melt-spun in a twin-screw extruder to weave a functional base fabric; the mass ratio of the nylon chips, functional fillers, antioxidant 1010, ultraviolet absorber UV-531 and calcium stearate is 100:7:1.3:0.6:0.5; the melt spinning process is to melt and plasticize at a metering pump temperature of 250℃, control the extrusion zone temperature at 260℃, use a multi-hole nozzle with a hole diameter of 0.3mm and a draw ratio of 4.2, and then perform secondary stretching at 100℃ with a stretching ratio of 1.6; (3) Using isocyanate-terminated polyurethane prepolymer as adhesive, with an adhesive application amount of 25 g / m², the functional base fabric, the light-blocking layer and the functional base fabric are bonded together in sequence to obtain the roller blind precursor fabric. Ethanolamine vapor is introduced and then cold-rolled to obtain an antibacterial and deodorizing light-blocking roller blind. The thickness of the TPU ultra-thin black film is 0.04 mm. The process of introducing ethanolamine vapor is to preheat the roller blind precursor fabric to 150°C and introduce ethanolamine vapor for 30 min. The ethanolamine vapor uses nitrogen as the carrier gas, the gas flow rate is 20 L / min, and the volume fraction of ethanolamine is 9%. The pressure of the roller during cold rolling is 3.0 MPa. Example 4

[0023] A method for preparing an antibacterial and deodorizing blackout roller blind includes the following preparation steps: (1) The activated nanofunctional particles, 3-bromopropionic acid, N,N-dimethylformamide and p-toluenesulfonic acid are mixed, heated to 105℃, stirred for 7.5h, and filtered to obtain the modified functional filler; the mass ratio of the activated nanofunctional particles, 3-bromopropionic acid, N,N-dimethylformamide and p-toluenesulfonic acid in step (1) is 1:2.5:7:0.04; the activated nanofunctional particles include activated nano-silver and activated titanium dioxide in a mass ratio of 1:1, the activated nanofunctional particles are made by mixing silver particles with a particle size of 100nm and titanium dioxide, and then placing them in a plasma treatment device, and introducing a mixed gas of argon and hydrogen in a volume ratio of 9:1, at a power of 300W and a vacuum degree of 10 -2 Prepared under Pa conditions for 30 minutes; (2) Nylon chips, functional fillers, antioxidant 1010, ultraviolet absorber UV-531 and calcium stearate are mixed and melt-spun in a twin-screw extruder to weave a functional base fabric; the mass ratio of the nylon chips, functional fillers, antioxidant 1010, ultraviolet absorber UV-531 and calcium stearate is 100:9:1.7:0.9:0.7; the melt spinning process is to melt and plasticize at a metering pump temperature of 255℃, control the extrusion zone temperature at 265℃, use a multi-hole nozzle with a hole diameter of 0.35mm and a draw ratio of 4.6, and then perform secondary stretching at 110℃ with a stretch ratio of 1.7; (3) Using isocyanate-terminated polyurethane prepolymer as adhesive, with an adhesive application amount of 28 g / m², the functional base fabric, the light-blocking layer and the functional base fabric are bonded together in sequence to obtain the roller blind precursor fabric. Ethanolamine vapor is introduced and then cold-rolled to obtain an antibacterial and deodorizing light-blocking roller blind. The thickness of the TPU ultra-thin black film is 0.04 mm. The process of introducing ethanolamine vapor is to preheat the roller blind precursor fabric to 150°C and introduce ethanolamine vapor for 30 min. The ethanolamine vapor uses nitrogen as the carrier gas, the gas flow rate is 25 L / min, and the volume fraction of ethanolamine is 10%. The pressure of the roller during cold rolling is 3.0 MPa. Example 5

[0024] A method for preparing an antibacterial and deodorizing blackout roller blind includes the following preparation steps: (1) The activated nano-functional particles, 3-bromopropionic acid, N,N-dimethylformamide and p-toluenesulfonic acid are mixed, heated to 110°C, stirred for 8 hours, and filtered to obtain the modified functional filler; the mass ratio of the activated nano-functional particles, 3-bromopropionic acid, N,N-dimethylformamide and p-toluenesulfonic acid in step (1) is 1:3:8:0.05; the activated nano-functional particles include activated nano-silver and activated titanium dioxide in a mass ratio of 1:1, the activated nano-functional particles are made by mixing silver particles with a particle size of 100nm and titanium dioxide, and then placing them in a plasma processing device, and introducing a mixed gas of argon and hydrogen in a volume ratio of 9:1, at a power of 300W and a vacuum degree of 10 -2 Prepared under Pa conditions for 30 minutes; (2) Nylon chips, functional fillers, antioxidant 1010, ultraviolet absorber UV-531 and calcium stearate are mixed and melt-spun in a twin-screw extruder to weave a functional base fabric; the mass ratio of the nylon chips, functional fillers, antioxidant 1010, ultraviolet absorber UV-531 and calcium stearate is 100:10:2:1:0.8; the melt spinning process is to melt and plasticize at a metering pump temperature of 260℃, control the extrusion zone temperature at 270℃, use a multi-hole nozzle with a hole diameter of 0.35mm and a draw ratio of 4.8, and then perform secondary stretching at 120℃ with a stretch ratio of 1.8; (3) Using isocyanate-terminated polyurethane prepolymer as adhesive, with an adhesive application amount of 30 g / m², the functional base fabric, the light-blocking layer and the functional base fabric are bonded together in sequence to obtain the roller blind precursor fabric. Ethanolamine vapor is introduced and then cold-rolled to obtain an antibacterial and deodorizing light-blocking roller blind. The thickness of the TPU ultra-thin black film is 0.05 mm. The process of introducing ethanolamine vapor is to preheat the roller blind precursor fabric to 150°C and introduce ethanolamine vapor for 30 min. The ethanolamine vapor uses nitrogen as the carrier gas, the gas flow rate is 30 L / min, and the volume fraction of ethanolamine is 12%. The pressure of the roller during cold rolling is 3.0 MPa.

[0025] Comparative Example 1 The difference between Comparative Example 1 and Example 3 is that step (1) is omitted, and the functional filler in step (2) is nano-silver and nano-titanium dioxide with a mass ratio of 1:1; the remaining steps are the same as in Example 3.

[0026] Comparative Example 2 The difference between Comparative Example 2 and Example 3 lies in step (3), where the terminal isocyanate polyurethane prepolymer in step (3) is replaced with polyamide hot melt adhesive; the remaining steps are the same as in Example 3.

[0027] Comparative Example 3 The difference between Comparative Example 3 and Example 3 is that step (3) is different, and ethanolamine vapor is not introduced in step (3); the rest of the steps are the same as in Example 3.

[0028] Example of effect Table 1 below shows the performance analysis results of the antibacterial and deodorizing blackout roller blinds of Examples 1 to 5 and Comparative Examples 1 to 3 of the present invention.

[0029] Table 1

[0030] A comparison of the experimental data from the examples and comparative examples reveals that, in this invention, modified functional fillers are first prepared by esterifying the hydroxyl groups on the surfaces of activated nano-silver and activated nano-titanium dioxide with 3-bromopropionic acid. The esterification reaction introduces halogenated hydrocarbons into the surface of the functional fillers, which not only improves the compatibility of the functional fillers through organic chain segments but also leaves active sites for subsequent reactions. The modified functional fillers are then melt-blended and spun with nylon to prepare functional base fabrics. The introduction of silver and titanium dioxide functional fillers gives the functional base fabrics antibacterial and deodorizing functions. Secondly, using isocyanate-terminated polyurethane prepolymer as a binder, the functional base fabric, the light-shielding layer, and the functional base fabric are bonded into a three-layer structure, and then ethanolamine vapor is introduced for curing to prepare an antibacterial and deodorizing light-shielding roller blind. Ethanolamine vapor can react with the halogenated hydrocarbons on the surface of the functional filler to prepare amino-containing derivatives, further improving the antibacterial performance of the roller blind. On the other hand, it can undergo a carbamate reaction with the isocyanate-terminated polyurethane prepolymer binder to form a three-dimensional network cross-linked structure for curing, thereby improving the bonding performance of the three-layer structure and extending its service life.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No markings in the claims should be construed as limiting the scope of the claims.

Claims

1. An antibacterial and deodorizing blackout roller blind, characterized in that, The blackout roller blind is made by bonding the functional base fabric, the blackout layer and the functional base fabric together with an adhesive to form a three-layer structure, and then reacting it with ethanolamine vapor. The functional base fabric is obtained by melt blending and spinning modified functional fillers with nylon; The modified functional filler is prepared by introducing 3-bromopropionic acid into the surface of nano-silver and nano-titanium dioxide through an esterification reaction.

2. The antibacterial and deodorizing blackout roller blind according to claim 1, characterized in that, The adhesive is an isocyanate-terminated polyurethane prepolymer.

3. The antibacterial and deodorizing blackout roller blind according to claim 2, characterized in that, The light-shielding layer is a TPU ultra-thin black film.

4. A method for preparing an antibacterial and deodorizing blackout roller blind, characterized in that, The preparation steps include the following: (1) Mix activated nanofunctional particles, 3-bromopropionic acid, N,N-dimethylformamide and p-toluenesulfonic acid, heat to 80~110℃, stir and react for 6~8h, and filter to obtain modified functional filler; (2) Nylon chips, functional fillers, antioxidant 1010, ultraviolet absorber UV-531 and calcium stearate are mixed and melt-spun in a twin-screw extruder to weave functional base fabric; (3) Using isocyanate-terminated polyurethane prepolymer as an adhesive, the functional base fabric, the light-blocking layer and the functional base fabric are bonded together in sequence to obtain the roller blind precursor fabric, ethanolamine vapor is introduced, and then cold-rolled to obtain an antibacterial and deodorizing light-blocking roller blind.

5. The method for preparing an antibacterial and deodorizing blackout roller blind according to claim 4, characterized in that, In step (1), the mass ratio of activated nanofunctional particles, 3-bromopropionic acid, N,N-dimethylformamide and p-toluenesulfonic acid is 1:1~3:6~8:0.01~0.05; the activated nanofunctional particles include activated nano-silver and activated titanium dioxide in a mass ratio of 1:

1.

6. The method for preparing an antibacterial and deodorizing blackout roller blind according to claim 4, characterized in that, In step (2), the mass ratio of nylon chips, functional fillers, antioxidant 1010, ultraviolet absorber UV-531 and calcium stearate is 100:5~10:0.5~2:0.3~1:0.2~0.

8.

7. The method for preparing an antibacterial and deodorizing blackout roller blind according to claim 4, characterized in that, In step (2), the melt spinning process involves melting and plasticizing at a metering pump temperature of 240-260°C, controlling the extrusion zone temperature at 250-270°C, using a multi-hole nozzle with a diameter of 0.2-0.35 mm and a draw ratio of 3.5-4.8, and then performing secondary stretching at 80-120°C with a stretching ratio of 1.3-1.

8.

8. The method for preparing an antibacterial and deodorizing blackout roller blind according to claim 4, characterized in that, The thickness of the TPU ultrathin black film in step (3) is 0.02 to 0.05 mm.

9. The method for preparing an antibacterial and deodorizing blackout roller blind according to claim 4, characterized in that, The process of introducing ethanolamine vapor in step (3) involves preheating the roller blind precursor fabric to 150°C and then introducing ethanolamine vapor for 30 minutes. The ethanolamine vapor uses nitrogen as the carrier gas, with a gas flow rate of 15~30 L / min and a volume fraction of ethanolamine of 5~12%.

10. The method for preparing an antibacterial and deodorizing blackout roller blind according to claim 4, characterized in that, In step (3), the pressure of the rollers during cold rolling is 3.0 MPa.

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