Orza wall cloth and production process thereof

Abstract

The invention relates to the technical field of wall cloth production processes, in particular to organza wall cloth and a production process thereof. According to the technical scheme, a main material of the wall cloth is a fiber raw material, the fiber raw material is composed of natural fibers and chemical fibers, and preparation raw materials of the wall cloth further comprise a nanometer raw material and a functional additive; wherein the natural fibers comprise cotton fibers, jute fibers and silk fibers; the chemical fibers comprise polyester fibers, polyamide fibers and acrylic fibers; the nano raw material comprises a nano titanium dioxide / nano zinc oxide composite material; the functional additive comprises an antistatic agent, a flame retardant and a softening agent. Through improvement of the formula and the production process, the antifouling property of the organza wall cloth is remarkably improved, the requirement of the market for high-quality wall cloth is met, and wider application of the organza wall cloth in the field of indoor decoration is promoted.

Description

Technical Field

[0001] The invention relates to the technical field of wall cloth production technology, and in particular to an organza wall cloth and a production technology thereof. Background Art

[0002] In the field of interior decoration, organza wall coverings are popular among consumers for their light texture and unique translucent texture, which can create a romantic, elegant and layered visual effect for the space. However, organza wall coverings currently have many problems in actual applications, especially the defect of poor anti-fouling performance, which seriously restricts its market expansion and user experience.

[0003] Ordinary organza is made of natural fibers or chemical fibers interwoven, and its fiber structure is relatively loose and has large pores. This makes it very easy for various stains, such as oil stains, juice stains, dust, etc., to penetrate through these pores and adhere to the inside of the fibers during daily use. When the wall cloth is stained, due to the special material of organza, traditional cleaning methods are often difficult to work. For example, wiping with a wet cloth not only fails to completely remove the stains, but may also cause the stains to spread, making cleaning more difficult; and the use of chemical cleaners may damage the color and texture of the organza, affecting the beauty and service life of the wall cloth. This poor anti-fouling performance greatly limits the application of organza wall cloth in restaurants, children's rooms, living rooms and other places prone to stains. Consumers have to spend a lot of energy and cost on cleaning and maintenance, and even when the stains are serious, they can only choose to replace the wall cloth, resulting in a waste of resources.

[0004] In the existing organza wall cloth production process, the improvement of anti-fouling performance is not fully considered. In the fiber manufacturing process, the raw materials are not effectively modified for anti-fouling; in the weaving process, there is also a lack of special process design for anti-fouling performance; therefore, this application proposes an organza wall cloth with high-efficiency anti-fouling effect and its production process. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the background technology and to provide an organza wall cloth with high-efficiency anti-fouling effect and a production process thereof.

[0006] The technical solution of the present invention is: an organza wall cloth, wherein the main material of the wall cloth is a fiber raw material, the fiber raw material is composed of natural fiber and chemical fiber, and the raw materials for preparing the wall cloth also include nano raw materials and functional additives; Among them, the natural fibers include cotton fibers, hemp fibers and silk fibers; the chemical fibers include polyester fibers, nylon fibers and acrylic fibers; the nano raw materials include nano titanium dioxide / nano zinc oxide composite materials; and the functional additives include antistatic agents, flame retardants and softeners.

[0007] Preferably, the weight ratio of the cotton fiber, hemp fiber and silk fiber is (20-45): (15-35): (20-35).

[0008] Preferably, the weight ratio of the polyester fiber, nylon fiber and acrylic fiber is (12-20): (15-35): (5-9).

[0009] Preferably, the preparation method of the nano titanium dioxide / nano zinc oxide composite material comprises: dispersing 10g of nano titanium dioxide in 90g of ethanol, heating to 60-80°C, and ultrasonically treating for 20-30min; adding 120mL of 1.5mol / L zinc nitrate aqueous solution to the dispersion, stirring at a rate of 300-500r / min, controlling the temperature at 40-60°C, dripping 1.8mol / L sodium carbonate aqueous solution to adjust the pH to 7.0-8.5, continuously stirring for 1-2 hours to generate a basic zinc carbonate-coated titanium dioxide composite precipitate, vacuum filtering and washing with deionized water; drying in an oven at 80-100°C for 2-4 hours, calcining in a muffle furnace at 350-450°C for 4-6h, and then grinding to obtain the composite precipitate.

[0010] Preferably, the weight ratio of the antistatic agent, flame retardant and softener is (0.15-3.5): (0.12-0.36): (0.2-0.25).

[0011] Preferably, the main material of the wall cloth is fiber raw material, and the fiber raw material is composed of natural fiber and chemical fiber, and specifically also includes the following component raw materials: Natural fibers: 20-45 parts of cotton fiber, 15-35 parts of hemp fiber, 20-35 parts of silk fiber; Chemical fiber: 12-20 parts of polyester fiber, 15-35 parts of nylon fiber, 5-9 parts of acrylic fiber; Nano raw materials: 2-10 parts of nano titanium dioxide / nano zinc oxide composite material; Functional additives: antistatic agent 0.15-3.5 parts, flame retardant 0.12-0.36 parts, softener 0.2-0.25 parts.

[0012] Preferably, the raw materials also include the following components: Natural fibers: 20 parts cotton fiber, 15 parts hemp fiber, 20 parts silk fiber; Chemical fiber: 12 parts of polyester fiber, 15 parts of nylon fiber, 5 parts of acrylic fiber; Nano raw materials: 3.2 parts of nano titanium dioxide / nano zinc oxide composite material; Functional additives: antistatic agent 0.15 parts, flame retardant 0.12 parts, softener 0.2 parts.

[0013] Preferably, the raw materials also include the following components: Natural fibers: 32 parts cotton fiber, 25 parts hemp fiber, 30 parts silk fiber; Chemical fiber: 16 parts of polyester fiber, 25 parts of nylon fiber, 7 parts of acrylic fiber; Nano raw materials: 6.7 parts of nano titanium dioxide / nano zinc oxide composite material; Functional additives: 1.75 parts of antistatic agent, 0.24 parts of flame retardant, and 0.225 parts of softener.

[0014] Preferably, the linear density of the natural fiber is 1.5-3.0 denier; The linear density of the chemical fiber is 1.0-2.5 denier; The intrinsic viscosity of the polyester fiber is stabilized at 0.60-0.75 dL / g; The relative viscosity of the nylon fiber is 2.4-3.0 dL / g; The third monomer content of the acrylic fiber is in the range of 1%-3%.

[0015] Preferably, the length of the cotton fiber is 25-32 mm; Hemp fiber length is 50-80 mm; The length of silk fibers is 800-1200 mm; The length of polyester fibers is 38-51 mm; Nylon fiber length is 40-55 mm; Acrylic fiber length is 35-50 mm.

[0016] Preferably, the antistatic agent is a quaternary ammonium salt antistatic agent; The flame retardant is a phosphorus flame retardant; The softener is a silicone softener.

[0017] The present invention also provides a production process of organza wall cloth, comprising the following steps: Step 1: Fiber manufacturing: The antistatic agent and the fiber raw material are fully mixed in proportion, and stirred at a speed of 1200 rpm for 15 minutes in a high-speed mixer, and the nano raw material is evenly dispersed in the mixture of the fiber raw material and the antistatic agent and stirred for 10 minutes. After the fiber is formed, the flame retardant is combined with the formed fiber by an impregnation method, and then in the fiber post-treatment stage, the softener concentration is uniformly applied by a spray method; Step 2: Weaving: Select an electronic jacquard loom with a warp frequency of 8-12 times / minute, a weft introduction speed of 12-18 cm / second, and a warp and weft interlacing angle of 75°-85°; Step 3: Finishing: A fluorine-containing polymer finishing agent is used for impregnation treatment. After the impregnation treatment, a curing process is performed to enhance the bonding strength between the fluorocarbon coating and the surface of the wall cloth. Finally, a drying process is performed to remove excess finishing agent and moisture on the surface of the wall cloth.

[0018] Preferably, the concentration of the fluorine-containing polymer finishing agent is 18-25 g / L, the immersion time is 12-18 min, and the immersion temperature is 45°C-55°C; The curing temperature is 110℃-130℃ and the curing time is 8-12min; The drying temperature is controlled at 105℃-115℃ and the drying time is 6-9min.

[0019] Preferably, the wall cloth is pre-cleaned before the immersion treatment in step 3, using a weak alkaline cleaning agent at a temperature of 40° C. for 10 minutes to ensure that impurities on the surface of the wall cloth are removed; The impregnation treatment adopts ultrasonic treatment with an ultrasonic frequency of 40kHz to promote the fluoropolymer finishing agent to fully penetrate into the wall cloth fibers.

[0020] Compared with the prior art, the present invention has the following beneficial technical effects: In the present invention, the wall cloth has excellent tensile strength and wear resistance through the careful proportion of natural fibers and chemical fibers, as well as the specific fiber length and linear density selection. And the addition of nano-titanium dioxide / nano-zinc oxide composite material, by forming a coating structure, enhances the interfacial bonding force between fibers, and further improves the mechanical properties of the wall cloth. The introduction of nano-composite materials not only gives the wall cloth excellent waterproof and oil-proof properties, but also effectively degrades harmful substances in the air through its photocatalytic effect, improves indoor air quality, and enhances sound energy dissipation through multi-scale interfaces, so that the wall cloth has good sound absorption performance, which helps to improve the indoor acoustic environment and reduce noise pollution. On this basis, through comparative experiments with comparative examples (such as nanoparticles not forming a composite structure, only retaining a single functional component, etc.), the significant advantages of the coating structure of the nano-titanium dioxide / nano-zinc oxide composite material in the present invention in terms of mechanical properties, surface functionality and acoustic properties are verified.

[0021] The nano-raw materials in the present invention have extremely small particle sizes, high specific surface areas and special surface activity. When the nano-raw materials are evenly dispersed in the fiber raw materials, the nano-raw materials will adhere to the surface and interior of the fibers during the fiber forming process. On the surface of the wall cloth, the nano-raw materials form a microscopic protective film. Taking nano-titanium dioxide as an example, the active sites on its surface can react with oxygen and moisture in the air to produce hydroxyl free radicals with strong oxidizing properties. These hydroxyl radicals can decompose organic stains such as oil stains and juice stains attached to the surface of the wall cloth, oxidizing them into small molecules such as carbon dioxide and water, thereby realizing the self-cleaning function, effectively improving the anti-fouling effect, and preventing the attachment and penetration of stains. At the same time, by reasonably adjusting the proportion of fiber raw materials, the tightness between fibers is enhanced, the pore size is further reduced, and the possibility of stains entering is reduced; when the antistatic agent is added to the fiber raw material, the hydrophilic groups in its molecular structure will be distributed on the fiber surface. During the use of the wall cloth, the antistatic agent can reduce the resistance of the fiber surface and reduce the generation of static electricity; the reduction of static electricity makes it difficult for the wall cloth surface to adsorb dust and other statically charged pollutants, which indirectly helps to improve the anti-fouling performance; at the same time, when the antistatic agent and nano raw materials coexist on the fiber surface, the hydrophilic groups of the antistatic agent can improve the dispersibility and stability of the nano raw materials on the fiber surface, further enhancing the anti-fouling effect of the nano raw materials; In the fiber manufacturing stage, the present invention adopts a blended spinning process to evenly disperse the antifouling nano raw materials in the fiber raw materials, thereby ensuring the stability and uniformity of the nano raw materials inside the fibers. In the weaving process, the weaving parameters are adjusted to make the fabric structure more compact, reduce the number and size of pores, and the appropriate pore size and distribution make the air permeability of the wall cloth between 120mm / s-150mm / s, thereby ensuring indoor air circulation. The fiber structure and pore structure of the wall cloth work together to improve the sound absorption and noise reduction performance. The fiber absorbs sound and the pores scatter and reflect sound, thereby effectively improving the indoor acoustic environment, thereby further improving the air permeability and sound absorption and noise reduction effects of the wall cloth. In the post-finishing process, the organza wall cloth is impregnated with a fluorine-containing polymer finishing agent to form a fluorocarbon coating with low surface energy on the surface of the wall cloth, making it difficult for stains to adhere and easy to clean; In summary, the present invention significantly improves the anti-fouling performance of organza wall cloth through the improvements in these formulas and production processes, meets the market demand for high-quality wall cloth, and promotes the wider application of organza wall cloth in the field of interior decoration. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A flow chart of the organza wall cloth production process proposed by the present invention is given. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Embodiment 1

[0025] like Figure 1 As shown, the present invention proposes an organza wall cloth, the main material of which is a fiber raw material, and the fiber raw material is composed of natural fiber and chemical fiber, and specifically also includes the following component raw materials: Natural fibers: 20 parts cotton fiber, 15 parts hemp fiber, 20 parts silk fiber; Chemical fiber: 12 parts of polyester fiber, 15 parts of nylon fiber, 5 parts of acrylic fiber; Nano raw materials: 3.2 parts of nano titanium dioxide / nano zinc oxide composite material; Functional additives: antistatic agent 0.15 parts, flame retardant 0.12 parts, softener 0.2 parts.

[0026] The preparation method of the nano titanium dioxide / nano zinc oxide composite material comprises: dispersing 10g of nano titanium dioxide in 90g of ethanol, heating to 70°C, and ultrasonically treating for 25min; adding 120mL of 1.5mol / L zinc nitrate aqueous solution to the dispersion, stirring at a rate of 400r / min, controlling the temperature at 50°C, dripping 1.8mol / L sodium carbonate aqueous solution to adjust the pH to 8, adding a small amount of ammonia water, stirring for 1.5 hours, generating a basic zinc carbonate-coated titanium dioxide composite precipitate, vacuum filtering and washing with deionized water; drying in an oven at 90°C for 3 hours, calcining in a muffle furnace at 400°C for 5h, and grinding to obtain the composite precipitate; The linear density of the natural fiber is 1.5 denier; The linear density of the chemical fiber is 1.0 denier; The intrinsic viscosity of the polyester fiber is stabilized at 0.60 dL / g; The relative viscosity of the nylon fiber is 2.4 dL / g; The third monomer content of the acrylic fiber is in the range of 1%; The length of the cotton fiber is 25 mm; The length of hemp fiber is 50 mm; The length of silk fiber is 800 mm; The polyester fiber length is 38 mm; The length of nylon fiber is 40 mm; The acrylic fiber length is 35 mm.

[0027] Wherein, the antistatic agent is stearyl trimethyl ammonium chloride; Microencapsulated red phosphorus is used as flame retardant; The softener is amino-modified polydimethylsiloxane; The preparation process of the organza wall cloth of this embodiment is as follows: Step 1: Fiber manufacturing: The antistatic agent and the fiber raw material are fully mixed in proportion, and stirred at a speed of 1200 rpm for 15 minutes in a high-speed mixer, and the nano raw material is evenly dispersed in the mixture of the fiber raw material and the antistatic agent and stirred for 10 minutes. After the fiber is formed, the flame retardant is combined with the formed fiber by an impregnation method, and then in the fiber post-treatment stage, the softener concentration is uniformly applied by a spray method; Step 2: Weaving: An electronic jacquard loom was selected with a warp frequency of 8 times / min, a weft introduction speed of 15 cm / s, and a warp and weft interlacing angle of 75°; Step 3: Finishing: A fluorine-containing polymer finishing agent is used for impregnation treatment. After the impregnation treatment, a curing process is performed to enhance the bonding strength between the fluorocarbon coating and the surface of the wall cloth. Finally, a drying process is performed to remove excess finishing agent and moisture on the surface of the wall cloth.

[0028] In the preparation process step 3, the concentration of the fluorine-containing polymer finishing agent is 18 g / L, the immersion time is 12 min, and the immersion temperature is 45° C.; The curing temperature is 110°C and the curing time is 8 minutes; The drying temperature was controlled at 105°C and the drying time was 6 minutes; Before the immersion treatment, the wall cloth is pre-cleaned with a weak alkaline cleaning agent at a temperature of 40°C for 10 minutes to ensure that impurities on the wall cloth surface are removed; The impregnation treatment adopts ultrasonic treatment with an ultrasonic frequency of 40kHz to promote the fluoropolymer finishing agent to fully penetrate into the wall cloth fibers.

[0029] Embodiment 2

[0030] like Figure 1 As shown, based on the first embodiment, the present invention proposes an organza wall cloth, the main material of which is a fiber raw material, the fiber raw material is composed of natural fiber and chemical fiber, and specifically also includes the following component raw materials: Natural fibers: 32 parts cotton fiber, 25 parts hemp fiber, 30 parts silk fiber; Chemical fiber: 16 parts of polyester fiber, 25 parts of nylon fiber, 7 parts of acrylic fiber; Nano raw materials: 6 parts of nano titanium dioxide / nano zinc oxide composite material; Functional additives: 1.75 parts of antistatic agent, 0.24 parts of flame retardant, and 0.225 parts of softener.

[0031] The preparation method of the nano titanium dioxide / nano zinc oxide composite material comprises: dispersing 10g of nano titanium dioxide in 90g of ethanol, heating to 70°C, and ultrasonically treating for 25min; adding 120mL of 1.5mol / L zinc nitrate aqueous solution to the dispersion, stirring at a rate of 400r / min, controlling the temperature at 50°C, dripping 1.8mol / L sodium carbonate aqueous solution to adjust the pH to 8, adding a small amount of ammonia water, stirring for 1.5 hours, generating a basic zinc carbonate-coated titanium dioxide composite precipitate, vacuum filtering and washing with deionized water; drying in an oven at 90°C for 3 hours, calcining in a muffle furnace at 400°C for 5h, and grinding to obtain the composite precipitate; The linear density of the natural fiber is 2.5 denier; The linear density of the chemical fiber is 2 denier; The intrinsic viscosity of the polyester fiber is stabilized at 0.7 dL / g; The relative viscosity of the nylon fiber is 2.8 dL / g; The third monomer content of the acrylic fiber is in the range of 2%; The length of the cotton fiber is 28 mm; The length of hemp fiber is 70 mm; The length of silk fiber is 1000 mm; The polyester fiber length is 45 mm; The length of nylon fiber is 50 mm; The acrylic fiber length is 45 mm.

[0032] Wherein, the antistatic agent is stearyl trimethyl ammonium chloride; Microencapsulated red phosphorus is used as flame retardant; The softener is amino-modified polydimethylsiloxane; The preparation process of the organza wall cloth of this embodiment is as follows: Step 1: Fiber manufacturing: The antistatic agent and the fiber raw material are fully mixed in proportion, and stirred at a speed of 1200 rpm for 15 minutes in a high-speed mixer, and the nano raw material is evenly dispersed in the mixture of the fiber raw material and the antistatic agent and stirred for 10 minutes. After the fiber is formed, the flame retardant is combined with the formed fiber by an impregnation method, and then in the fiber post-treatment stage, the softener concentration is uniformly applied by a spray method; Step 2: Weaving: An electronic jacquard loom was selected with a warp frequency of 10 times / min, a weft introduction speed of 15 cm / s, and a warp and weft interlacing angle of 80°; Step 3: Finishing: Impregnation treatment is carried out using a fluoropolymer finishing agent. After the impregnation treatment, a curing process is carried out to enhance the bonding strength between the fluorocarbon coating and the surface of the wall fabric. Finally, a drying process is carried out to remove the excess finishing agent and moisture on the surface of the wall fabric.

[0033] In the third step of the preparation process, the concentration of the fluoropolymer finishing agent is 22 g / L, the impregnation time is 15 min, and the impregnation temperature is 50 °C; The curing temperature is 120 °C and the time is 10 min; The drying temperature is controlled at 110 °C and the drying time is 8 min; Before the impregnation treatment, the wall fabric is pre-cleaned with a weak alkaline cleaning agent at a cleaning temperature of 40 °C for 10 min to ensure the removal of impurities on the surface of the wall fabric; The impregnation treatment is carried out by ultrasonic treatment with an ultrasonic frequency of 40 kHz to promote the full penetration of the fluoropolymer finishing agent into the wall fabric fibers.

[0034] Example Three

[0035] As Figure 1 shown, a kind of organza wall fabric proposed by the present invention, the main material of the wall fabric is a fiber raw material, and the fiber raw material is composed of natural fibers and chemical fibers, and specifically further includes the following component raw materials: Natural fibers: 45 parts of cotton fiber, 35 parts of hemp fiber, 35 parts of silk fiber; Chemical fibers: 20 parts of polyester fiber, 35 parts of polyamide fiber, 9 parts of acrylic fiber; Nano raw materials: 9.2 parts of nano-titanium dioxide / nano-zinc oxide composite material; Functional additives: 3.5 parts of antistatic agent, 0.36 part of flame retardant, 00.25 part of softener.

[0036] The preparation method of the nano-titanium dioxide / nano-zinc oxide composite material includes: dispersing 10 g of nano-titanium dioxide in 90 g of ethanol and heating to 70 °C, and carrying out ultrasonic treatment for 25 min; adding 120 mL of an aqueous solution of zinc nitrate with a concentration of 1.5 mol / L to the dispersion liquid, with a stirring rate of 400 r / min, controlling the temperature at 50 °C, and dropping an aqueous solution of sodium carbonate with a concentration of 1.8 mol / L to adjust the pH = 8, with a small amount of ammonia water added, and continuously stirring for 1.5 hours to generate a composite precipitate of titanium dioxide coated with basic zinc carbonate, followed by vacuum filtration and washing with deionized water; drying in an oven at 90 °C for 3 hours, calcining in a muffle furnace at 400 °C for 5 h, and then grinding to obtain; The linear density of the natural fiber is 3.0 denier; The linear density of the chemical fiber is 2.5 denier; The intrinsic viscosity of the polyester fiber is stabilized at 0.75 dL / g; The relative viscosity of the nylon fiber is 3.0 dL / g; The third monomer content of the acrylic fiber is in the range of 3%; The length of the cotton fiber is 32 mm; The length of hemp fiber is 80 mm; The length of silk fiber is 1200 mm; The polyester fiber length is 51 mm; The length of nylon fiber is 55 mm; The acrylic fiber length is 50 mm.

[0037] Wherein, the antistatic agent is stearyl trimethyl ammonium chloride; Microencapsulated red phosphorus is used as flame retardant; The softener is polyether-modified polydimethylsiloxane; The preparation process of the organza wall cloth of this embodiment is as follows: Step 1: Fiber manufacturing: The antistatic agent and the fiber raw material are fully mixed in proportion, and stirred at a speed of 1200 rpm for 15 minutes in a high-speed mixer, and the nano raw material is evenly dispersed in the mixture of the fiber raw material and the antistatic agent and stirred for 10 minutes. After the fiber is formed, the flame retardant is combined with the formed fiber by an impregnation method, and then in the fiber post-treatment stage, the softener concentration is uniformly applied by a spray method; Step 2: Weaving: An electronic jacquard loom was selected with a warp frequency of 12 times / min, a weft introduction speed of 18 cm / s, and a warp and weft interlacing angle of 85°; Step 3: Finishing: A fluorine-containing polymer finishing agent is used for impregnation treatment. After the impregnation treatment, a curing process is performed to enhance the bonding strength between the fluorocarbon coating and the surface of the wall cloth. Finally, a drying process is performed to remove excess finishing agent and moisture on the surface of the wall cloth.

[0038] In the preparation process step 3, the concentration of the fluorine-containing polymer finishing agent is 25 g / L, the immersion time is 18 min, and the immersion temperature is 55° C.; The curing temperature is 130°C and the curing time is 12 minutes; The drying temperature is controlled at 115°C and the drying time is 6-9 minutes; Before the immersion treatment, the wall cloth is pre-cleaned with a weak alkaline cleaning agent at a temperature of 40°C for 10 minutes to ensure that impurities on the wall cloth surface are removed; The impregnation treatment adopts ultrasonic treatment with an ultrasonic frequency of 40kHz to promote the fluoropolymer finishing agent to fully penetrate into the wall cloth fibers.

[0039] Embodiment 4

[0040] like Figure 1 As shown, the present invention proposes an organza wall cloth, the main material of which is a fiber raw material, and the fiber raw material is composed of natural fiber and chemical fiber, and specifically also includes the following component raw materials: Natural fibers: 23 parts cotton fiber, 18 parts hemp fiber, 13 parts silk fiber; Chemical fiber: 15 parts of polyester fiber, 18 parts of nylon fiber, 7 parts of acrylic fiber; Nano raw materials: 4.5 parts of nano titanium dioxide / nano zinc oxide composite material; Functional additives: antistatic agent 0.19 parts, flame retardant 0.18 parts, softener 0.22 parts.

[0041] The preparation method of the nano titanium dioxide / nano zinc oxide composite material comprises: dispersing 10g of nano titanium dioxide in 90g of ethanol, heating to 70°C, and ultrasonically treating for 25min; adding 120mL of 1.5mol / L zinc nitrate aqueous solution to the dispersion, stirring at a rate of 400r / min, controlling the temperature at 50°C, dripping 1.8mol / L sodium carbonate aqueous solution to adjust the pH to 8, adding a small amount of ammonia water, stirring for 1.5 hours, generating a basic zinc carbonate-coated titanium dioxide composite precipitate, vacuum filtering and washing with deionized water; drying in an oven at 90°C for 3 hours, calcining in a muffle furnace at 400°C for 5h, and grinding to obtain the composite precipitate; The linear density of the natural fiber is 3.0 denier; The linear density of the chemical fiber is 2.5 denier; The intrinsic viscosity of the polyester fiber is stabilized at 0.75 dL / g; The relative viscosity of the nylon fiber is 3.0 dL / g; The third monomer content of the acrylic fiber is in the range of 3%; The length of the cotton fiber is 32 mm; The length of hemp fiber is 80 mm; The length of silk fiber is 1200 mm; The polyester fiber length is 51 mm; The length of nylon fiber is 55 mm; The acrylic fiber length is 50 mm.

[0042] Wherein, the antistatic agent is a quaternary ammonium salt antistatic agent; Flame retardant: phosphorus flame retardant; The softener is silicone softener; The preparation process of the organza wall cloth of this embodiment is as follows: Step 1: Fiber manufacturing: The antistatic agent and the fiber raw material are fully mixed in proportion, and stirred at a speed of 1200 rpm for 15 minutes in a high-speed mixer, and the nano raw material is evenly dispersed in the mixture of the fiber raw material and the antistatic agent and stirred for 10 minutes. After the fiber is formed, the flame retardant is combined with the formed fiber by an impregnation method, and then in the fiber post-treatment stage, the softener concentration is uniformly applied by a spray method; Step 2: Weaving: An electronic jacquard loom was selected with a warp frequency of 12 times / min, a weft introduction speed of 18 cm / s, and a warp and weft interlacing angle of 85°; Step 3: Finishing: A fluorine-containing polymer finishing agent is used for impregnation treatment. After the impregnation treatment, a curing process is performed to enhance the bonding strength between the fluorocarbon coating and the surface of the wall cloth. Finally, a drying process is performed to remove excess finishing agent and moisture on the surface of the wall cloth.

[0043] In the preparation process step 3, the concentration of the fluorine-containing polymer finishing agent is 25 g / L, the immersion time is 18 min, and the immersion temperature is 55° C.; The curing temperature is 130°C and the curing time is 12 minutes; The drying temperature is controlled at 115°C and the drying time is 6-9 minutes; Before the immersion treatment, the wall cloth is pre-cleaned with a weak alkaline cleaning agent at a temperature of 40°C for 10 minutes to ensure that impurities on the wall cloth surface are removed; The impregnation treatment adopts ultrasonic treatment with an ultrasonic frequency of 40kHz to promote the fluoropolymer finishing agent to fully penetrate into the wall cloth fibers.

[0044] Embodiment 5

[0045] like Figure 1 As shown, the present invention proposes an organza wall cloth, the main material of which is a fiber raw material, and the fiber raw material is composed of natural fiber and chemical fiber, and specifically also includes the following component raw materials: Natural fibers: 43 parts cotton fiber, 33 parts hemp fiber, 32 parts silk fiber; Chemical fiber: 18 parts of polyester fiber, 32 parts of nylon fiber, 8 parts of acrylic fiber; Nano raw materials: 8 parts of nano titanium dioxide / nano zinc oxide composite material; Functional additives: 3.1 parts of antistatic agent, 0.3 parts of flame retardant, and 0.22 parts of softener.

[0046] The preparation method of the nano titanium dioxide / nano zinc oxide composite material comprises: dispersing 10g of nano titanium dioxide in 90g of ethanol, heating to 70°C, and ultrasonically treating for 25min; adding 120mL of 1.5mol / L zinc nitrate aqueous solution to the dispersion, stirring at a rate of 400r / min, controlling the temperature at 50°C, dripping 1.8mol / L sodium carbonate aqueous solution to adjust the pH to 8, adding a small amount of ammonia water, stirring for 1.5 hours, generating a basic zinc carbonate-coated titanium dioxide composite precipitate, vacuum filtering and washing with deionized water; drying in an oven at 90°C for 3 hours, calcining in a muffle furnace at 400°C for 5h, and grinding to obtain the composite precipitate; The linear density of the natural fiber is 3.0 denier; The linear density of the chemical fiber is 2.5 denier; The intrinsic viscosity of the polyester fiber is stabilized at 0.75 dL / g; The relative viscosity of the nylon fiber is 3.0 dL / g; The third monomer content of the acrylic fiber is in the range of 3%; The length of the cotton fiber is 32 mm; The length of hemp fiber is 80 mm; The length of silk fiber is 1200 mm; The polyester fiber length is 51 mm; The length of nylon fiber is 55 mm; The acrylic fiber length is 50 mm.

[0047] Wherein, the antistatic agent is stearyl trimethyl ammonium chloride; The flame retardant is dimethyl methyl phosphate; The softener is amino-modified polydimethylsiloxane; The preparation process of the organza wall cloth of this embodiment is as follows: Step 1: Fiber manufacturing: The antistatic agent and the fiber raw material are fully mixed in proportion, and stirred at a speed of 1200 rpm for 15 minutes in a high-speed mixer, and the nano raw material is evenly dispersed in the mixture of the fiber raw material and the antistatic agent and stirred for 10 minutes. After the fiber is formed, the flame retardant is combined with the formed fiber by an impregnation method, and then in the fiber post-treatment stage, the softener concentration is uniformly applied by a spray method; Step 2: Weaving: An electronic jacquard loom was selected with a warp frequency of 12 times / min, a weft introduction speed of 18 cm / s, and a warp and weft interlacing angle of 85°; Step 3: Finishing: A fluorine-containing polymer finishing agent is used for impregnation treatment. After the impregnation treatment, a curing process is performed to enhance the bonding strength between the fluorocarbon coating and the surface of the wall cloth. Finally, a drying process is performed to remove excess finishing agent and moisture on the surface of the wall cloth.

[0048] In the preparation process step 3, the concentration of the fluorine-containing polymer finishing agent is 25 g / L, the immersion time is 18 min, and the immersion temperature is 55° C.; The curing temperature is 130°C and the curing time is 12 minutes; The drying temperature was controlled at 115°C and the drying time was 8 minutes; Before the immersion treatment, the wall cloth is pre-cleaned with a weak alkaline cleaning agent at a temperature of 40°C for 10 minutes to ensure that impurities on the wall cloth surface are removed; The impregnation treatment adopts ultrasonic treatment with an ultrasonic frequency of 40kHz to promote the fluoropolymer finishing agent to fully penetrate into the wall cloth fibers.

[0049] Comparative Example 1 Adjustments were made on the basis of Example 1. The difference from Example 1 was that the nano-titanium dioxide / nano-zinc oxide composite material in Comparative Example 1 was replaced with 1.2 parts of nano-titanium dioxide and 2 parts of nano-zinc oxide.

[0050] Comparative Example 2 Adjustments were made on the basis of Example 1. The difference from Example 1 was that the nano-titanium dioxide / nano-zinc oxide composite material in Comparative Example 1 was replaced by nano-titanium dioxide.

[0051] Comparative Example 3 Adjustments were made on the basis of Example 1. The difference from Example 1 was that the nano-titanium dioxide / nano-zinc oxide composite material in Comparative Example 1 was replaced by nano-zinc oxide.

[0052] Combined with the proportion and preparation process of the organza wall cloth in the embodiment and the comparative example, the performance of the prepared wall cloth was tested, and the specific test items included: warp tensile strength (N / 5cm), weft tensile strength (N / 5cm), waterproof grade, oil-proof grade, air permeability (mm / s) and sound absorption and noise reduction coefficient; Tensile strength test Testing method: CMT6503 electronic universal material testing machine was selected, which has high-precision force sensors and stable drive systems. Organza wall cloth was cut into rectangular specimens with a length of 250mm and a width of 50mm. Five parallel specimens were prepared for each test to ensure data accuracy. The two ends of the specimen were firmly clamped with special clamps. The surface of the clamps had anti-slip patterns to prevent the specimens from sliding during the test. The tensile rate of the testing machine was set to 100mm / min. After starting the equipment, it applied tension at a uniform speed until the specimen broke, and automatically recorded the maximum force value at the time of breaking.

[0053] Testing environment: The test is carried out in a constant temperature and humidity laboratory. The temperature is accurately controlled at 20°C ± 1°C, and the relative humidity is maintained at 65% ± 2%. Through the central air-conditioning system and dehumidification and humidification equipment, the indoor temperature and humidity are continuously adjusted to avoid the influence of environmental temperature and humidity fluctuations on the mechanical properties of the wall fabric fibers and ensure the reliability of the test results.

[0054] Test standard: Follow GB / T3923.1-2013 "Textiles - Tensile properties of fabrics - Part 1: Determination of breaking force and elongation at break - Strip method". According to the standard, calculate the average value of the tensile strength in the warp and weft directions of each group of parallel specimens, with the unit of N / 5cm. At the same time, calculate the standard deviation to evaluate the degree of data dispersion.

[0055] Waterproof performance test Testing method: Use a YG(B)812D fabric water repellency tester. The instrument is equipped with a nozzle that can adjust the spraying angle and flow rate. Fix a square wall fabric specimen with a side length of 150mm horizontally on the test bench. The nozzle is 150mm away from the specimen surface. Spray distilled water on the specimen at a flow rate of 400mL / min for 25s. After the spraying is completed, immediately compare the specimen with the standard water repellency grade sample photos to determine its waterproof grade.

[0056] Testing environment: The experimental environment temperature is controlled at 22°C ± 1°C, and the relative humidity is 60% ± 3%. Stable temperature and humidity can ensure the constant surface tension of water and reduce the interference with the test results.

[0057] Test standard: Refer to the spray method in GB / T4744-2013 "Textiles - Determination of waterproof performance - Hydrostatic pressure method" and GB / T21295-2014 "Technical requirements for physical and chemical properties of clothing". According to GB / T21295-2014, the waterproof grade is evaluated from grade 1 (severely soaked) to grade 5 (no water stain).

[0058] Oil-proof performance test Testing method: Use an oil-proof performance test kit, which contains a series of test liquids with different surface tensions, prepared in sequence from n-heptane (low surface tension) to n-dodecane (high surface tension). Drop a circular test liquid with a diameter of 10mm on the surface of a 100mm × 100mm wall fabric specimen and observe whether the test liquid penetrates or spreads within 15s. The grade corresponding to the highest surface tension test liquid that does not penetrate is used as the oil-proof grade of the wall fabric.

[0059] Testing environment: The environmental temperature is maintained at 23°C ± 1°C, and the relative humidity is 50% ± 3%. At this temperature and humidity, the volatility and surface activity of the test liquid are stable, which is conducive to accurately judging the oil-proof effect.

[0060] Test standard: According to GB / T19977-2014 "Test for Oil Repellency and Hydrocarbon Resistance of Textiles", the oil resistance level is divided from level 1 (easy to penetrate) to level 8 (completely impermeable).

[0061] Air permeability test Testing method: Use FX3300 air permeability tester, which is equipped with high-precision flow sensor and micro-pressure difference sensor. Install a round wall cloth sample with a diameter of 75mm on the test hole to ensure good sealing. The instrument applies a pressure difference of 100Pa to one side of the sample, measures the volume of air passing through the sample within 1 minute, and calculates the air permeability.

[0062] Testing environment: The test is carried out in a standard atmospheric environment with a temperature of 20°C ± 1°C, a relative humidity of 65% ± 2%, and an atmospheric pressure of 101.3 kPa ± 0.5 kPa. Stable environmental parameters ensure constant air density and viscosity, thus improving test accuracy.

[0063] Test standard: According to GB / T5453-1997 "Determination of air permeability of textile fabrics", the air permeability is expressed in mm / s. Each set of tests is measured 5 times in parallel and the average value is taken as the final result.

[0064] Sound absorption and noise reduction coefficient test Testing method: A specially designed acoustic reverberation chamber is used. The internal dimensions of the reverberation chamber are 6m×6m×6m. The walls are built with materials with extremely low sound absorption coefficients. An organza wall cloth sample with an area of ​​2m×2m is installed on a movable test frame and placed in the center of the reverberation chamber. A loudspeaker is used as a sound source to generate pink noise with a frequency range of 125Hz-4000Hz. Four microphones are installed at different positions in the reverberation chamber to measure the decay time of the sound in the reverberation chamber before and after the installation of the sample. The sound absorption and noise reduction coefficients at different frequencies are calculated based on the reverberation time.

[0065] Testing environment: The background noise of the reverberation room is lower than 25dB(A), the indoor temperature is maintained at 20℃±1℃, and the relative humidity is 50%±2%. The low background noise and stable temperature and humidity provide guarantee for accurate measurement of sound absorption performance.

[0066] Test standard: According to GB / T20247-2006 "Acoustic Reverberation Room Sound Absorption Measurement", calculate the sound absorption coefficient of the six octave center frequencies of 125Hz, 250Hz, 500Hz, 1000Hz, 2000Hz and 4000Hz, and then calculate the arithmetic mean as the average sound absorption and noise reduction coefficient, which is used to evaluate the sound absorption and noise reduction performance of wall coverings.

[0067] The following data is obtained:

[0068] Combining the above data, the following summary is made: Tensile strength: The warp tensile strength of Example 5 is 320N / 5cm, and the weft tensile strength is 290N / 5cm. The warp tensile strength is the highest among the five examples, indicating that it has the strongest ability to resist tensile damage in the warp direction. The weft tensile strength is also relatively high, and it can better withstand external pulling and is not easily damaged by stretching in actual use.

[0069] Waterproof and oil-proof grade: The waterproof grade of the five embodiments is all level 4, and the oil-proof grade is all level 3, which means that in terms of waterproof and oil-proof performance, the embodiments are at the same level and have good ability to resist water and oil pollution.

[0070] Air permeability: The air permeability of Example 3 is 135 mm / s, the highest among the five examples, which means that the wall cloth can better achieve indoor and outdoor air circulation while ensuring other performances, helping to create a comfortable indoor environment and reduce the feeling of stuffiness.

[0071] Sound absorption and noise reduction coefficient: The sound absorption and noise reduction coefficient of Example 5 is 0.32, which is the highest among the five examples, indicating that it performs best in absorbing and reducing indoor noise, can effectively improve the indoor acoustic environment, and reduce external noise interference.

[0072] In general, Example 5 performs outstandingly in terms of tensile strength and sound absorption and noise reduction coefficient. Although the air permeability is not the highest, the overall performance is relatively balanced and excellent.

[0073] The air permeability of the third embodiment is the best, which is advantageous in scenarios where high indoor air circulation requirements are required.

[0074] Therefore, if more attention is paid to the comprehensive performance of the wall cloth, including strength and improvement of the acoustic environment, the wall cloth prepared in Example 5 has better performance; if there are particularly high requirements for air permeability, the wall cloth in Example 3 is more suitable.

[0075] The tensile strength in the longitudinal direction of Example 1 is 308 N / 5cm, while that of Comparative Example 1 (physical mixed TiO 2 / ZnO) is only 292N / 5cm, a decrease of 5.2%, and the comparison examples 2 and 3 are further reduced to 285 N / 5cm and 288 N / 5cm, a decrease of 7.5% and 6.5% respectively. This is because ZnO coated TiO 2 The heterogeneous interface enhances the stress transfer efficiency between fibers through chemical bonding, while the single-component nanoparticles are unevenly dispersed due to surface energy differences, forming mechanical weak points. Therefore, the introduction of composite nanomaterials significantly improves the tensile strength of wall cloth.

[0076] The waterproof grade of the embodiment group is stable at level 4, while the comparative examples 1, 2, and 3 are reduced to level 3, level 2, and level 3, respectively. Therefore, the synergistic effect of the composite material is particularly significant in waterproof / oil-proof performance. The absence of the nanocomposite material leads to a decrease in the density of the fiber assembly and an increase in porosity. The average air permeability of the embodiment group is 130 mm / s, while the comparative example 2 rises to 155 mm / s.

[0077] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An organza wall covering, characterized in that: The main material of the wall cloth is fiber raw material, which is composed of natural fiber and chemical fiber. The raw materials for preparing the wall cloth also include nano raw materials and functional additives; Among them, the natural fibers include cotton fibers, hemp fibers and silk fibers; the chemical fibers include polyester fibers, nylon fibers and acrylic fibers; the nano raw materials include nano titanium dioxide / nano zinc oxide composite materials; and the functional additives include antistatic agents, flame retardants and softeners.

2. The organza wall covering according to claim 1, characterized in that: The weight ratio of the cotton fiber, the hemp fiber and the silk fiber is (20-45): (15-35): (20-35).

3. The organza wall covering according to claim 1, characterized in that: The weight ratio of the polyester fiber, nylon fiber and acrylic fiber is (12-20): (15-35): (5-9).

4. The organza wall covering according to claim 1, characterized in that: The preparation method of the nano titanium dioxide / nano zinc oxide composite material comprises: dispersing nano titanium dioxide in ethanol, heating to 60-80°C, and ultrasonically treating for 20-30 minutes; adding zinc nitrate to the dispersion, stirring at a rate of 300-500 r / min, controlling the temperature at 40-60°C, adjusting the pH to 7.0-8.5, and continuously stirring for 1-2 hours to generate a titanium dioxide composite precipitate coated with basic zinc carbonate, and washing with deionized water after vacuum filtration; drying in an oven at 80-100°C for 2-4 hours, calcining in a muffle furnace at 350-450°C for 4-6 hours, and then grinding to obtain the composite precipitate.

5. The organza wall covering according to claim 1, characterized in that: The weight ratio of the antistatic agent, the flame retardant and the softener is (0.15-3.5): (0.12-0.36): (0.2-0.25).

6. The organza wall covering according to claim 1, characterized in that: The length of the cotton fiber is 25-32 mm; Hemp fiber length is 50-80 mm; The length of silk fibers is 800-1200 mm; The length of polyester fibers is 38-51 mm; Nylon fiber length is 40-55 mm; Acrylic fiber length is 35-50 mm.

7. The organza wall covering according to claim 1, characterized in that: The antistatic agent is a quaternary ammonium salt antistatic agent; the flame retardant is a phosphorus flame retardant; and the softener is an organic silicon softener.

8. A production process of the organza wall covering according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Fiber manufacturing: The antistatic agent and the fiber raw material are fully mixed in proportion, and stirred at a speed of 1200 rpm for 15 minutes in a high-speed mixer, and the nano raw material is evenly dispersed in the mixture of the fiber raw material and the antistatic agent and stirred for 10 minutes. After the fiber is formed, the flame retardant is combined with the formed fiber by an impregnation method, and then in the fiber post-treatment stage, the softener concentration is uniformly applied by a spray method; Step 2: Weaving: Select an electronic jacquard loom with a warp frequency of 8-12 times / minute, a weft introduction speed of 12-18 cm / second, and a warp and weft interlacing angle of 75°-85°; Step 3: Finishing: A fluorine-containing polymer finishing agent is used for impregnation treatment. After the impregnation treatment, a curing process is performed to enhance the bonding strength between the fluorocarbon coating and the surface of the wall cloth. Finally, a drying process is performed to remove excess finishing agent and moisture on the surface of the wall cloth.

9. The production process of organza wall cloth according to claim 8, characterized in that: In step 3, the concentration of the fluorine-containing polymer finishing agent is 18-25 g / L, the immersion time is 12-18 min, and the immersion temperature is 45° C.-55° C.; The curing temperature is 110℃-130℃ and the curing time is 8-12min; The drying temperature is controlled at 105℃-115℃ and the drying time is 6-9min.

10. The production process of organza wall cloth according to claim 8, characterized in that: In the step 3, the wall cloth is pre-cleaned before the immersion treatment, using a weak alkaline cleaning agent, the cleaning temperature is 40° C., and the cleaning time is 10 minutes, so as to ensure that impurities on the wall cloth surface are removed; The impregnation treatment adopts ultrasonic treatment with an ultrasonic frequency of 40kHz to promote the fluoropolymer finishing agent to fully penetrate into the wall cloth fibers.

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