Production process of tear-resistant shower curtain

Abstract

The invention relates to the technical field of shower curtain production, and discloses a tear-resistant shower curtain production process which comprises the following steps: S1, base material pretreatment: selecting a PVC (polyvinyl chloride) film as a base material, and treating the surface of the base material by plasma at the treatment power of 300-500W, the treatment time of 30-60s and the treatment distance of 5-10cm; and then the surface of the treated base material is ground and coarsened, the grinding mesh number is 800-1200, surface impurities are cleaned away through absolute ethyl alcohol after grinding, and the base material is aired for use. According to the production process of the tear-resistant shower curtain, the surface roughness and activity of the base material are remarkably improved in a base material pretreatment mode of combining plasma treatment with polishing and coarsening, and a foundation is laid for subsequent coating combination; and the compatibility of the base material and the coating is further improved in cooperation with soaking treatment of the modification liquid, and the problem that the binding force of the coating and the base material is poor is fundamentally solved.

Description

Technical Field

[0001] This invention relates to the field of shower curtain manufacturing technology, specifically a manufacturing process for a tear-resistant shower curtain. Background Technology

[0002] Shower curtains are common sanitary ware accessories in daily life, mainly used to separate shower areas and keep the bathroom dry and clean. Currently, most shower curtains on the market are made of PVC, PEVA, polyester, etc. Among them, PVC shower curtains are widely used because of their low price and good waterproof performance. However, existing PVC shower curtains and other shower curtains generally have poor tear resistance. During daily use, due to pulling, friction or contact with sharp objects, they are prone to tearing, which affects the service life of the shower curtain and increases the user's cost.

[0003] To improve the tear resistance of shower curtains, existing technologies typically employ two methods: one is to increase the thickness of the shower curtain, but this method leads to an increase in the weight of the shower curtain, a decrease in flexibility, a worse user experience, and a limited improvement in tear resistance.

[0004] The second method involves coating the shower curtain with an enhanced coating, but this method has a fatal flaw—the coating has poor adhesion to the substrate. Under long-term exposure to water vapor erosion, friction, and temperature changes, the coating is very easy to peel off, failing to achieve a durable tear-resistant effect. The peeled coating may also pollute the environment and affect the safety of use.

[0005] Therefore, developing a simple, environmentally friendly, and efficient shower curtain manufacturing process that can significantly improve the adhesion between the coating and the substrate and achieve a durable tear-resistant effect has become an urgent technical problem to be solved in the current shower curtain manufacturing industry. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides a manufacturing process for tear-resistant shower curtains, which solves the aforementioned problems.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: a manufacturing process for a tear-resistant shower curtain, comprising the following steps:

[0010] S1. Substrate pretreatment: Select PVC film as the substrate. First, use plasma to treat the surface of the substrate. The treatment power is 300-500W, the treatment time is 30-60s, and the treatment distance is 5-10cm.

[0011] The surface of the treated substrate is then roughened by grinding with a grit of 800-1200. After grinding, the surface impurities are cleaned with anhydrous ethanol and then dried for later use.

[0012] S2. Preparation of modified substrate: The pretreated PVC substrate is immersed in the modification solution, which is made by mixing acrylate resin, coupling agent and solvent in a weight ratio of 10-15:2-5:80-90. The immersion temperature is 40-60℃ and the immersion time is 60-90min. After immersion, the substrate is taken out and dried at 80-100℃ to constant weight to obtain the modified PVC substrate.

[0013] S3. Preparation of reinforced coating: Weigh the raw materials according to the following weight ratio: 60-80 parts of waterborne polyurethane resin, 5-10 parts of nano silica, 3-8 parts of carbon fiber powder, 2-5 parts of bonding accelerator, 1-3 parts of antioxidant, 0.5-1.5 parts of defoamer, and 10-20 parts of deionized water. Add the above raw materials to a disperser and disperse at a speed of 1500-2500 r / min for 30-40 min to obtain a uniform reinforced coating slurry.

[0014] S4. Gradient coating and curing: Gradient coating is performed on the surface of the modified PVC substrate using a scraper coating method: the thickness of the first coating is 8-12μm, and it is pre-cured at 60-70℃ for 15-20min after coating.

[0015] The second coating is 15-20 μm thick. After coating, it is pre-cured at 70-80℃ for 20-30 min, and then heated to 100-120℃ for 30-40 min to obtain the coated substrate.

[0016] S5. Post-coating treatment: The surface of the cured coated substrate is calendered at a temperature of 80-90℃, a pressure of 3-5MPa, and a speed of 2-3m / min. Subsequently, ultraviolet aging treatment is performed at an aging intensity of 0.8-1.2mW / cm² and an aging time of 2-4h to obtain a tear-resistant substrate.

[0017] S6. Edge reinforcement treatment: The above-mentioned tear-resistant substrate is cut to obtain a shower curtain blank of a preset size. The edges of the shower curtain blank are reinforced by ultrasonic welding technology. The welding temperature is 220-260℃ and the welding time is 3-6s. At the same time, PVC-glass fiber composite edge banding strips are inlaid at the edges. The edge banding strip is 2-3cm wide.

[0018] S7. Finished product processing: The reinforced shower curtain blank is perforated with a hole diameter of 8-10mm and a hole spacing of 10-15cm. Then, stainless steel hanging rings are installed, with the number of hanging rings matching the hole diameter. Finally, visual inspection, trimming and edge trimming are performed to obtain the finished high-adhesion tear-resistant shower curtain.

[0019] Preferably, the working gas for plasma treatment in step S1 is a mixture of argon and oxygen, with a volume ratio of argon to oxygen of 3:1 to 5:1.

[0020] Preferably, the coupling agent in step S2 is γ-aminopropyltriethoxysilane or γ-glycidoxypropyltrimethoxysilane.

[0021] Preferably, the solvent in step S2 is a mixture of anhydrous ethanol and ethyl acetate, with a volume ratio of anhydrous ethanol to ethyl acetate of 2:1.

[0022] Preferably, the adhesion promoter in step S3 is an isocyanate-based adhesion promoter;

[0023] The antioxidant is hindered phenolic antioxidant 1010;

[0024] The defoamer is an organosilicon defoamer.

[0025] Preferably, the particle size of the nano-silica in step S3 is 20-50 nm;

[0026] The particle size of the carbon fiber powder is 50-100 nm.

[0027] Preferably, the carbon fiber powder in step S3 undergoes surface activation treatment. The activation treatment method is as follows: immerse the carbon fiber powder in a 5-8% nitric acid solution and soak it at 50-60°C for 2-3 hours. After taking it out, wash it with deionized water until neutral and dry it for later use.

[0028] Preferably, in step S4, the blade angle for coating is 30-45°, and the coating speed is 1-2 m / min.

[0029] Preferably, the calendering process in step S5 uses a mirror calendering roller with a surface roughness Ra ≤ 0.05 μm.

[0030] Preferably, the glass fiber content in the PVC-glass fiber composite edge banding strip in step S6 is 30-40 wt%.

[0031] The stainless steel hanging ring mentioned in step S7 is made of 304 stainless steel and has a thickness of 1.5-2mm.

[0032] (III) Beneficial Effects

[0033] Compared with the prior art, the present invention provides a manufacturing process for tear-resistant shower curtains, which has the following beneficial effects:

[0034] 1. The production process of this tear-resistant shower curtain, through the substrate pretreatment method combining plasma treatment and grinding roughening, significantly improves the surface roughness and activity of the substrate, laying the foundation for subsequent coating bonding; combined with modified liquid immersion treatment, it further improves the compatibility between the substrate and the coating, fundamentally solving the problem of poor adhesion between the coating and the substrate.

[0035] 2. The production process of this tear-resistant shower curtain: The reinforcing coating formula of this invention adds nano-silica, activated carbon fiber powder and special bonding promoter, which can not only significantly improve the tear resistance of the coating, but also further enhance the adhesion between the coating and the substrate, prevent the coating from falling off, and achieve a long-lasting tear resistance effect.

[0036] 3. The production process of this tear-resistant shower curtain effectively releases the internal stress of the coating through layered coating and segmented curing, reduces the shrinkage difference between the coating and the substrate, further improves the coating adhesion and structural stability, and ensures uniform coating thickness and consistent performance.

[0037] 4. The production process of this tear-resistant shower curtain: after the coating is cured, the invention adds calendering and ultraviolet aging treatment. Calendering improves the surface smoothness and wear resistance of the coating, while ultraviolet aging treatment improves the weather resistance of the coating and avoids aging and cracking of the coating during long-term use.

[0038] 5. The production process of this tear-resistant shower curtain: The shower curtain prepared by this invention not only has excellent coating adhesion and tear resistance, but also good waterproofness, wear resistance and weather resistance. Its service life is 3-5 times longer than that of existing shower curtains, and it has a good user experience and broad market application prospects. Detailed Implementation

[0039] 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.

[0040] A manufacturing process for a tear-resistant shower curtain includes the following steps:

[0041] S1. Substrate pretreatment: Select PVC film as the substrate. First, use plasma to treat the surface of the substrate. The treatment power is 300-500W, the treatment time is 30-60s, and the treatment distance is 5-10cm.

[0042] The surface of the treated substrate is then roughened by grinding with a grit of 800-1200. After grinding, the surface impurities are cleaned with anhydrous ethanol and then dried for later use.

[0043] S2. Preparation of modified substrate: The pretreated PVC substrate is immersed in the modification solution, which is made by mixing acrylate resin, coupling agent and solvent in a weight ratio of 10-15:2-5:80-90. The immersion temperature is 40-60℃ and the immersion time is 60-90min. After immersion, the substrate is taken out and dried at 80-100℃ to constant weight to obtain the modified PVC substrate.

[0044] S3. Preparation of reinforced coating: Weigh the raw materials according to the following weight ratio: 60-80 parts of waterborne polyurethane resin, 5-10 parts of nano silica, 3-8 parts of carbon fiber powder, 2-5 parts of bonding accelerator, 1-3 parts of antioxidant, 0.5-1.5 parts of defoamer, and 10-20 parts of deionized water. Add the above raw materials to a disperser and disperse at a speed of 1500-2500 r / min for 30-40 min to obtain a uniform reinforced coating slurry.

[0045] S4. Gradient Coating and Curing: Gradient coating is performed on the surface of the modified PVC substrate using a doctor blade coating method: the first coating thickness is 8-12μm, and it is pre-cured at 60-70℃ for 15-20min after coating; the second coating thickness is 15-20μm, and it is first pre-cured at 70-80℃ for 20-30min after coating, and then the temperature is raised to 100-120℃ for curing for 30-40min to obtain the coated substrate;

[0046] S5. Post-coating treatment: The surface of the cured coated substrate is calendered at a temperature of 80-90℃, a pressure of 3-5MPa, and a speed of 2-3m / min. Subsequently, ultraviolet aging treatment is performed at an aging intensity of 0.8-1.2mW / cm² and an aging time of 2-4h to obtain a tear-resistant substrate.

[0047] S6. Edge reinforcement treatment: The above-mentioned tear-resistant substrate is cut to obtain a shower curtain blank of a preset size. The edges of the shower curtain blank are reinforced by ultrasonic welding technology. The welding temperature is 220-260℃ and the welding time is 3-6s. At the same time, PVC-glass fiber composite edge banding strips are inlaid at the edges. The edge banding strip is 2-3cm wide.

[0048] S7. Finished product processing: The edge-reinforced shower curtain blank is punched with a hole diameter of 8-10mm and a hole spacing of 10-15cm. Then, stainless steel hanging rings are installed, with the number of hanging rings matching the hole diameter. Finally, visual inspection and trimming are carried out to obtain a finished high-adhesion tear-resistant shower curtain.

[0049] Furthermore, in step S1, the working gas for plasma treatment is a mixture of argon and oxygen, with a volume ratio of argon to oxygen of 3:1-5:1.

[0050] Further, in step S2, the coupling agent is γ-aminopropyltriethoxysilane (KH550) or γ-glycidoxypropyltrimethoxysilane (KH560).

[0051] The solvent is a mixture of anhydrous ethanol and ethyl acetate, with a volume ratio of anhydrous ethanol to ethyl acetate of 2:1.

[0052] Furthermore, in step S3, the adhesion promoter is an isocyanate-based adhesion promoter;

[0053] The antioxidant is hindered phenolic antioxidant 1010;

[0054] The defoamer is an organosilicon defoamer;

[0055] Furthermore, in step S3, the particle size of the nano-silica is 20-50 nm;

[0056] The carbon fiber powder has a particle size of 50-100nm and undergoes surface activation treatment. The activation treatment method is as follows: immerse the carbon fiber powder in a 5-8% nitric acid solution at 50-60℃ for 2-3 hours, remove it, wash it with deionized water until neutral, and dry it for later use.

[0057] Furthermore, in step S4, the blade angle for coating is 30-45°, and the coating speed is 1-2 m / min;

[0058] Furthermore, in step S5, the calendering process uses a mirror calendering roller with a surface roughness Ra≤0.05μm;

[0059] Furthermore, in step S6, the glass fiber content in the PVC-glass fiber composite edge banding strip is 30-40 wt%.

[0060] Furthermore, in step S7, the stainless steel hanging ring is made of 304 stainless steel and has a thickness of 1.5-2mm.

[0061] Example 1:

[0062] A manufacturing process for a tear-resistant shower curtain includes the following steps:

[0063] S1. Substrate pretreatment: PVC film is selected as the substrate. The surface of the substrate is first treated with plasma. The treatment power is 300W, the treatment time is 60s, the treatment distance is 5cm, and the working gas is a mixture of argon and oxygen (volume ratio 3:1).

[0064] The surface of the treated substrate was then roughened by grinding with a grit of 800. After grinding, the surface impurities were cleaned with anhydrous ethanol and then dried for later use.

[0065] S2. Preparation of modified substrate: The pretreated PVC substrate is immersed in the modification solution. The modification solution is prepared by mixing acrylate resin, KH550 coupling agent and mixed solvent (anhydrous ethanol and ethyl acetate in a volume ratio of 2:1) in a weight ratio of 10:2:90. The immersion temperature is 40℃ and the immersion time is 90min. After immersion, the substrate is taken out and dried at 80℃ to constant weight to obtain the modified PVC substrate.

[0066] S3. Preparation of reinforced coating: Weigh the raw materials according to the following weight ratio: 60 parts of waterborne polyurethane resin, 5 parts of nano silica (particle size 20nm), 3 parts of carbon fiber powder (particle size 50nm, activated by soaking in 5% nitric acid solution at 50℃ for 2h), 2 parts of isocyanate adhesive accelerator, 1 part of antioxidant 10101, 0.5 parts of organosilicon defoamer, and 10 parts of deionized water. Add the above raw materials to a disperser and disperse at a speed of 1500r / min for 40min to obtain a uniform reinforced coating slurry.

[0067] S4. Gradient coating and curing: Gradient coating is performed on the surface of the modified PVC substrate using a scraper coating method (scraper angle 30°, coating speed 1m / min): the thickness of the first coating is 8μm, and it is pre-cured at 60℃ for 20min after coating.

[0068] The second coating is 15 μm thick. After coating, it is pre-cured at 70°C for 30 min, and then heated to 100°C for 40 min to obtain the coated substrate.

[0069] S5. Post-coating treatment: The surface of the cured coated substrate is calendered at a temperature of 80℃, a pressure of 3MPa, and a speed of 2m / min (surface roughness of the calendering roller Ra=0.05μm); then it is subjected to ultraviolet aging treatment with an aging intensity of 0.8mW / cm² and an aging time of 4h to obtain a tear-resistant substrate.

[0070] S6. Edge reinforcement treatment: The above-mentioned tear-resistant substrate is cut to obtain a shower curtain blank of a preset size. The edges of the shower curtain blank are reinforced by ultrasonic welding technology. The welding temperature is 220℃ and the welding time is 6s. At the same time, PVC-glass fiber composite edge banding strip (glass fiber content 30wt%, width 2cm) is inlaid at the edges.

[0071] S7. Finished Product Processing: The reinforced shower curtain blank is perforated with a hole diameter of 8mm and a hole spacing of 10cm. Then, 304 stainless steel hanging rings (1.5mm thick) are installed, with the number of hanging rings matching the hole diameter. Finally, the appearance is inspected, and the edges are trimmed to obtain the finished high-adhesion tear-resistant shower curtain.

[0072] Example 2:

[0073] A manufacturing process for a tear-resistant shower curtain includes the following steps:

[0074] S1. Substrate pretreatment: PVC film is selected as the substrate. The surface of the substrate is first treated with plasma at a power of 400W, a treatment time of 45s, a treatment distance of 8cm, and a working gas of argon and oxygen (volume ratio 4:1). Then, the surface of the treated substrate is roughened by grinding with a grit of 1000. After grinding, the surface impurities are cleaned with anhydrous ethanol and then dried for later use.

[0075] S2. Preparation of modified substrate: The pretreated PVC substrate is immersed in the modification solution. The modification solution is prepared by mixing acrylate resin, KH560 coupling agent and mixed solvent (anhydrous ethanol and ethyl acetate in a volume ratio of 2:1) in a weight ratio of 12:3:85. The immersion temperature is 50℃ and the immersion time is 75min. After immersion, the substrate is taken out and dried at 90℃ to constant weight to obtain the modified PVC substrate.

[0076] S3. Preparation of reinforced coating: Weigh the raw materials according to the following weight ratio: 70 parts of waterborne polyurethane resin, 8 parts of nano silica (particle size 35nm), 5 parts of carbon fiber powder (particle size 75nm, activated by soaking in 6% nitric acid solution at 55℃ for 2.5h), 3 parts of isocyanate adhesive accelerator, 2 parts of antioxidant 1010, 1 part of organosilicon defoamer, and 15 parts of deionized water. Add the above raw materials to a disperser and disperse at a speed of 2000r / min for 35min to obtain a uniform reinforced coating slurry.

[0077] S4. Gradient Coating and Curing: Gradient coating is performed on the modified PVC substrate surface using a doctor blade coating method (doctor blade angle 38°, coating speed 1.5m / min): The first coating thickness is 10μm, and it is pre-cured at 65℃ for 18min after coating; the second coating thickness is 18μm, and it is first pre-cured at 75℃ for 25min after coating, and then heated to 110℃ for 35min to obtain the coated substrate.

[0078] S5. Post-coating treatment: The surface of the cured coated substrate is calendered at a temperature of 85℃, a pressure of 4MPa, and a speed of 2.5m / min (surface roughness of the calender roller Ra=0.04μm); then it is subjected to ultraviolet aging treatment at an aging intensity of 1.0mW / cm² and an aging time of 3h to obtain a tear-resistant substrate.

[0079] S6. Edge reinforcement treatment: The above-mentioned tear-resistant substrate is cut to obtain a shower curtain blank of the preset size. The edges of the shower curtain blank are reinforced by ultrasonic welding technology. The welding temperature is 240℃ and the welding time is 4s. At the same time, PVC-glass fiber composite edge banding strip (glass fiber content 35wt%, width 2.5cm) is inlaid at the edges.

[0080] S7. Finished Product Processing: The reinforced shower curtain blank is perforated with a hole diameter of 9mm and a hole spacing of 12cm. Then, 304 stainless steel hanging rings (1.8mm thick) are installed, with the number of hanging rings matching the hole diameter. Finally, the appearance is inspected, and the edges are trimmed to obtain the finished high-adhesion tear-resistant shower curtain.

[0081] Example 3:

[0082] A manufacturing process for a tear-resistant shower curtain includes the following steps:

[0083] S1. Substrate pretreatment: PVC film is selected as the substrate. The surface of the substrate is first treated with plasma at a power of 500W, a treatment time of 30s, a treatment distance of 10cm, and a working gas of argon and oxygen (volume ratio 5:1). Then, the surface of the treated substrate is roughened by grinding at a grit of 1200. After grinding, the surface impurities are cleaned with anhydrous ethanol and then dried for later use.

[0084] S2. Preparation of modified substrate: The pretreated PVC substrate is immersed in the modification solution. The modification solution is prepared by mixing acrylate resin, KH550 coupling agent and mixed solvent (anhydrous ethanol and ethyl acetate in a volume ratio of 2:1) in a weight ratio of 15:5:80. The immersion temperature is 60℃ and the immersion time is 60min. After immersion, the substrate is taken out and dried at 100℃ to constant weight to obtain the modified PVC substrate.

[0085] S3. Preparation of reinforced coating: Weigh the raw materials according to the following weight ratio: 80 parts of waterborne polyurethane resin, 10 parts of nano silica (particle size 50nm), 8 parts of carbon fiber powder (particle size 100nm, activated by soaking in 8% nitric acid solution at 60℃ for 3h), 5 parts of isocyanate adhesive accelerator, 3 parts of antioxidant 1010, 1.5 parts of organosilicon defoamer, and 20 parts of deionized water. Add the above raw materials to a disperser and disperse at a speed of 2500r / min for 30min to obtain a uniform reinforced coating slurry.

[0086] S4. Gradient Coating and Curing: Gradient coating is performed on the surface of the modified PVC substrate using a doctor blade coating method (doctor blade angle 45°, coating speed 2m / min): The first coating thickness is 12μm, and it is pre-cured at 70℃ for 15min after coating; the second coating thickness is 20μm, and it is pre-cured at 80℃ for 20min after coating, and then heated to 120℃ for 30min to obtain the coated substrate.

[0087] S5. Post-coating treatment: The surface of the cured coated substrate is calendered at a temperature of 90℃, a pressure of 5MPa, and a speed of 3m / min (surface roughness of the calender roller Ra=0.03μm); then it is subjected to ultraviolet aging treatment at an aging intensity of 1.2mW / cm² and an aging time of 2h to obtain a tear-resistant substrate.

[0088] S6. Edge reinforcement treatment: The above-mentioned tear-resistant substrate is cut to obtain a shower curtain blank of the preset size. The edges of the shower curtain blank are reinforced by ultrasonic welding technology. The welding temperature is 260℃ and the welding time is 3s. At the same time, PVC-glass fiber composite edge banding strip (glass fiber content 40wt%, width 3cm) is inlaid at the edge.

[0089] S7. Finished Product Processing: The reinforced shower curtain blank is perforated with a hole diameter of 10mm and a hole spacing of 15cm. Then, 304 stainless steel hanging rings (2mm thick) are installed, with the number of hanging rings matching the hole diameter. Finally, visual inspection, trimming and edge trimming are performed to obtain the finished high-adhesion tear-resistant shower curtain.

[0090] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A manufacturing process for a tear-resistant shower curtain, characterized in that: Includes the following steps: S1. Substrate pretreatment: Select PVC film as the substrate. First, use plasma to treat the surface of the substrate. The treatment power is 300-500W, the treatment time is 30-60s, and the treatment distance is 5-10cm. The surface of the treated substrate is then roughened by grinding with a grit of 800-1200. After grinding, the surface impurities are cleaned with anhydrous ethanol and then dried for later use. S2. Preparation of modified substrate: The pretreated PVC substrate is immersed in the modification solution, which is made by mixing acrylate resin, coupling agent and solvent in a weight ratio of 10-15:2-5:80-90. The immersion temperature is 40-60℃ and the immersion time is 60-90min. After immersion, the substrate is taken out and dried at 80-100℃ to constant weight to obtain the modified PVC substrate. S3. Preparation of reinforced coating: Weigh the raw materials according to the following weight ratio: 60-80 parts of waterborne polyurethane resin, 5-10 parts of nano silica, 3-8 parts of carbon fiber powder, 2-5 parts of bonding accelerator, 1-3 parts of antioxidant, 0.5-1.5 parts of defoamer, and 10-20 parts of deionized water. Add the above raw materials to a disperser and disperse at a speed of 1500-2500 r / min for 30-40 min to obtain a uniform reinforced coating slurry. S4. Gradient coating and curing: Gradient coating is performed on the surface of the modified PVC substrate using a scraper coating method: the thickness of the first coating is 8-12μm, and it is pre-cured at 60-70℃ for 15-20min after coating. The second coating is 15-20 μm thick. After coating, it is pre-cured at 70-80℃ for 20-30 min, and then heated to 100-120℃ for 30-40 min to obtain the coated substrate. S5. Post-coating treatment: The surface of the cured coated substrate is calendered at a temperature of 80-90℃, a pressure of 3-5MPa, and a speed of 2-3m / min. Subsequently, ultraviolet aging treatment is performed at an aging intensity of 0.8-1.2mW / cm² and an aging time of 2-4h to obtain a tear-resistant substrate. S6. Edge reinforcement treatment: The above-mentioned tear-resistant substrate is cut to obtain a shower curtain blank of a preset size. The edges of the shower curtain blank are reinforced by ultrasonic welding technology. The welding temperature is 220-260℃ and the welding time is 3-6s. At the same time, PVC-glass fiber composite edge banding strips are inlaid at the edges. The edge banding strip is 2-3cm wide. S7. Finished product processing: The reinforced shower curtain blank is perforated with a hole diameter of 8-10mm and a hole spacing of 10-15cm. Then, stainless steel hanging rings are installed, with the number of hanging rings matching the hole diameter. Finally, visual inspection, trimming and edge trimming are performed to obtain the finished high-adhesion tear-resistant shower curtain.

2. The manufacturing process of a tear-resistant shower curtain according to claim 1, characterized in that: The working gas for plasma treatment in step S1 is a mixture of argon and oxygen, with a volume ratio of argon to oxygen of 3:1 to 5:

1.

3. The manufacturing process of a tear-resistant shower curtain according to claim 1, characterized in that: The coupling agent mentioned in step S2 is γ-aminopropyltriethoxysilane or γ-glycidoxypropyltrimethoxysilane.

4. The manufacturing process of a tear-resistant shower curtain according to claim 1, characterized in that: The solvent mentioned in step S2 is a mixed solvent of anhydrous ethanol and ethyl acetate, with a volume ratio of anhydrous ethanol to ethyl acetate of 2:

1.

5. The manufacturing process of a tear-resistant shower curtain according to claim 1, characterized in that: The adhesion promoter mentioned in step S3 is an isocyanate-based adhesion promoter; The antioxidant is hindered phenolic antioxidant 1010; The defoamer is an organosilicon defoamer.

6. The manufacturing process of a tear-resistant shower curtain according to claim 1, characterized in that: The particle size of the nano-silica mentioned in step S3 is 20-50 nm; The particle size of the carbon fiber powder is 50-100 nm.

7. The manufacturing process of a tear-resistant shower curtain according to claim 1, characterized in that: The carbon fiber powder mentioned in step S3 undergoes surface activation treatment. The activation treatment method is as follows: immerse the carbon fiber powder in a 5-8% nitric acid solution and soak it at 50-60℃ for 2-3 hours. After taking it out, wash it with deionized water until neutral and dry it for later use.

8. The manufacturing process of a tear-resistant shower curtain according to claim 1, characterized in that: In step S4, the scraper angle for coating is 30-45°, and the coating speed is 1-2 m / min.

9. The manufacturing process of a tear-resistant shower curtain according to claim 1, characterized in that: The calendering process described in step S5 uses a mirror calendering roller with a surface roughness Ra ≤ 0.05 μm.

10. The manufacturing process of a tear-resistant shower curtain according to claim 1, characterized in that: The glass fiber content in the PVC-glass fiber composite edge banding strip mentioned in step S6 is 30-40 wt%. The stainless steel hanging ring mentioned in step S7 is made of 304 stainless steel and has a thickness of 1.5-2mm.