High-breathability soft cotton fabric and preparation method thereof

Abstract

The invention relates to the technical field of soft cotton fabrics, in particular to a high-breathability soft cotton fabric and a preparation method thereof.The preparation method includes the following steps that firstly, spandex filaments serve as core yarns, the core yarns are wrapped with modified polyester yarns to be spun into spandex wrap yarns, the ratio of the spandex filaments to the modified polyester yarns is 2: 2.5, and the linear density of the spandex filaments is 20 D; and the linear density of the modified polyester yarns is 50D. According to the soft cotton fabric, the spandex filaments serve as the core wires, the spandex filaments are subjected to coating improvement through the modified polyester yarn, the 100D / 144F imitated cotton yarn is matched for warp and weft knitting, the obtained soft cotton fabric is improved in the air permeability, softness and elasticity in a coordinated and balanced mode, and the product is excellent in heat resistance, washing resistance and stability.

Description

Technical Field

[0001] The present invention relates to the technical field of soft fabrics, and particularly relates to a highly breathable soft fabric and a preparation method thereof. Background Art

[0002] With the continuous development of science and technology, fabrics have been widely used in the fields of clothing, home, industrial textiles, etc. The existing soft fabrics have poor air permeability, and at the same time, the softness and elasticity of the products are poor. It is difficult to balance and improve the air permeability, softness and elasticity of the products, and the heat resistance and washing stability of the products are poor, which limits the use efficiency of the products. Summary of the Invention

[0003] Aiming at the defects of the prior art, the purpose of the present invention is to provide a highly breathable soft fabric and a preparation method thereof to solve the problems raised in the above background art.

[0004] The present invention adopts the following technical solutions to solve the technical problems: The present invention provides a preparation method of a highly breathable soft fabric, including the following steps: Step 1: First, use spandex filament as the core wire, and wrap the core wire with modified polyester filament to spin into spandex covered yarn. The weight ratio of spandex filament to modified polyester filament is 2:2.5, the linear density of spandex filament is 20D; the linear density of modified polyester filament is 50D; Step 2: Then, warp-knit and weft-knit 100D / 144F cotton-like filament and spandex covered yarn according to a weight ratio of 4:3 to form a soft fabric; the gram weight of the soft fabric is 320 - 360 g / m 2 .

[0005] Preferably, the preparation method of the modified polyester filament is as follows: S1, weigh the raw materials according to parts by weight: 75 - 80 parts of polyester masterbatch, 2 - 3 parts of heat stabilizer, 1 - 3 parts of antioxidant, 1 - 3 parts of lubricant, 5 - 9 parts of efficiency supplementing agent, and 4 - 7 parts of functional auxiliary agent; S2, send the raw materials in S1 into an extruder, melt and mix them, then extrude, cool and orientedly stretch through a spinneret to obtain modified polyester filament.

[0006] Preferably, the heat stabilizer is diethyl (3,5 - di - tert - butyl - 4 - hydroxybenzyl) phosphate; the antioxidant is antioxidant 168; the lubricant is stearic acid; the melt mixing temperature is 275 - 285 °C, the cooling temperature is 25 °C, and the orientation stretching ratio is 1:(4 - 6).

[0007] Preferably, the preparation method of the efficiency supplementing agent is as follows: S01: Compounding nano-attapulgite and medical stone powder in a weight ratio of 3:2, then calcining at 150-170° C. for 1 h, and then air-cooling to room temperature to obtain a composite material; Add 4-6 parts of the composite material and 2-3 parts of carboxymethyl cellulose to 5-8 parts of sodium citrate solution by weight, then add 1-3 parts of zinc oxide, stir evenly, and obtain a first additive liquid; S02: 1-2 parts of silane coupling agent KH550, 2-5 parts of chitosan solution and 3-6 parts of kaolin are fully mixed by weight to obtain a second additive liquid; The first additive liquid and the second additive liquid are mixed and stirred in a weight ratio of (4-6):3 to obtain an additive compounding liquid; S03: The synergist and the additive compounding liquid are mixed in a weight ratio of 5:3, and ball-milled at a speed of 1000 r / min for 2 h. After the ball-milling is completed, the mixture is filtered and dried to obtain the synergist and additive compounding liquid.

[0008] Preferably, the mass fraction of the sodium citrate solution is 4-7%; the mass fraction of the chitosan solution is 2-5%.

[0009] Preferably, the preparation method of the tonic is: 3-5 parts of silicon carbide whiskers and 2-4 parts of barium titanate are mixed and added into 5-8 parts of dopamine hydrochloride solution by weight, and then 1-3 parts of nano silica sol and 2-3 parts of boron nitride are added and mixed for ultrasonic treatment. After the ultrasonic treatment is finished, the mixture is filtered and dried to obtain a tonic agent.

[0010] Preferably, the mass fraction of the dopamine hydrochloride solution is 3-5%; the ultrasonic power of the blending ultrasonic treatment is 550-750w, and the ultrasonic treatment is performed for 1h.

[0011] Preferably, the preparation method of the functional additive is: S11: adding 3-5 parts of nano titanium dioxide, 1-3 parts of sodium dodecylbenzene sulfonate and 2-3 parts of nano silicon dioxide to 5-8 parts of sodium lignin sulfonate solution by weight and stirring thoroughly to obtain a functional liquid; S12: Evenly blend the sodium silicate solution, calcium carbonate and citric acid in a weight ratio of 4:3:1 to obtain a sodium silicate agent; fully stir the sodium silicate agent and the functional liquid in a weight ratio of 2:5, then filter and dry to obtain a functional additive.

[0012] Preferably, the mass fraction of the sodium lignin sulfonate solution is 4-7%; the mass fraction of the sodium silicate solution is 3-5%.

[0013] The present invention also provides a highly breathable soft fabric, which is prepared by the method for preparing the highly breathable soft fabric.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The soft fabric of the present invention uses spandex filaments as the core thread, which is improved by being coated with modified polyester filaments, and then knitted by warp knitting and weft knitting with 100D / 144F cotton-like filaments. The obtained soft fabric has a coordinated and balanced improvement in air permeability, softness and elasticity, and the product has excellent heat resistance and washing stability; the modified polyester filaments use polyester masterbatch, heat stabilizer, antioxidant and lubricant as functional additives, and at the same time add efficiency supplementing agents and functional additives to be mutually blended and coordinated. The obtained modified polyester filaments optimize the performance coordination and performance stability in the system; the efficiency supplementing agent is prepared by mixing and ball milling a supplementing agent and an additive compounding liquid. The silicon carbide whiskers in the supplementing agent are based on a whisker structure, and are combined with barium titanate and boron nitride raw materials, and then hydrochloric acid dopamine solution and nano-silica sol are blended. Through the compounding improvement between the raw materials, and at the same time combined with the improvement and coordination of the additive compounding liquid. The first additive liquid and the second additive liquid in the additive compounding liquid are blended and stirred. The composite material, carboxymethyl cellulose and sodium citrate solution in the first additive liquid are blended and optimized with zinc oxide. At the same time, the nano-attapulgite and zeolite powder in the composite material are optimized by calcination. At the same time, it is combined with silane coupling agent KH550, chitosan solution and kaolin to obtain the second additive liquid in a sufficient blend. Through the blending and optimization between the raw materials, the obtained product can achieve a coordinated and balanced improvement in the air permeability, softness and elasticity of the fabric, and the product has remarkable heat resistance and washing stability; the functional additive is prepared by blending sodium silicate solution, calcium carbonate and citric acid into a sodium silicate agent; and then combined with nano-titanium dioxide, sodium dodecyl benzene sulfonate, nano-silica and lignin sulfonate solution to form a functional liquid. Through the co-blending and coordination of the functional liquid and the sodium silicate agent, the functional additive blends the efficiency supplementing agent, and the coordination effect is improved, and further the performance of the product is optimized and improved. Specific Embodiments

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0016] A preparation method of a highly breathable soft fabric in this embodiment includes the following steps: Step 1: First, use spandex filaments as the core thread, and the core thread is coated with modified polyester filaments to spin into spandex covered yarn. The weight ratio of spandex filaments to modified polyester filaments is 2:2.5, the linear density of spandex filaments is 20D; the linear density of modified polyester filaments is 50D; Step 2: Then knit the 100D / 144F imitation cotton silk and spandex covered yarn into a soft fabric in a warp and weft ratio of 4:3; the weight of the soft fabric is 320-360g / m 2 .

[0017] The preparation method of the modified polyester yarn of this embodiment is: S1, weigh the raw materials according to weight: 75-80 parts of polyester masterbatch, 2-3 parts of heat stabilizer, 1-3 parts of antioxidant, 1-3 parts of lubricant, 5-9 parts of synergist and 4-7 parts of functional additives; S2, feeding the raw materials in S1 into an extruder, and after melt mixing, extruding through a spinning head, cooling, and directional stretching are performed to obtain modified polyester yarn.

[0018] The heat stabilizer of this embodiment is 3,5-di-tert-butyl-4-hydroxybenzyl diethyl phosphate; the antioxidant is antioxidant 168; the lubricant is stearic acid; the melt mixing temperature is 275-285°C, the cooling temperature is 25°C, and the directional stretching ratio is 1:(4-6).

[0019] The preparation method of the supplementary agent of this embodiment is: S01: Compounding nano-attapulgite and medical stone powder in a weight ratio of 3:2, then calcining at 150-170° C. for 1 h, and then air-cooling to room temperature to obtain a composite material; Add 4-6 parts of the composite material and 2-3 parts of carboxymethyl cellulose to 5-8 parts of sodium citrate solution by weight, then add 1-3 parts of zinc oxide, stir evenly, and obtain a first additive liquid; S02: 1-2 parts of silane coupling agent KH550, 2-5 parts of chitosan solution and 3-6 parts of kaolin are fully mixed by weight to obtain a second additive liquid; The first additive liquid and the second additive liquid are mixed and stirred in a weight ratio of (4-6):3 to obtain an additive compounding liquid; S03: The synergist and the additive compounding liquid are mixed in a weight ratio of 5:3, and ball-milled at a speed of 1000 r / min for 2 h. After the ball-milling is completed, the mixture is filtered and dried to obtain the synergist and additive compounding liquid.

[0020] The mass fraction of the sodium citrate solution in this embodiment is 4-7%; the mass fraction of the chitosan solution is 2-5%.

[0021] The preparation method of the tonic agent of this embodiment is: 3-5 parts of silicon carbide whiskers and 2-4 parts of barium titanate are mixed and added into 5-8 parts of dopamine hydrochloride solution by weight, and then 1-3 parts of nano silica sol and 2-3 parts of boron nitride are added and mixed for ultrasonic treatment. After the ultrasonic treatment is finished, the mixture is filtered and dried to obtain a tonic agent.

[0022] The mass fraction of the dopamine hydrochloride solution in this embodiment is 3-5%; the ultrasonic power of the blending ultrasonic treatment is 550-750w, and the ultrasonic treatment is performed for 1h.

[0023] The preparation method of the functional additive of this embodiment is: S11: adding 3-5 parts of nano titanium dioxide, 1-3 parts of sodium dodecylbenzene sulfonate and 2-3 parts of nano silicon dioxide to 5-8 parts of sodium lignin sulfonate solution by weight and stirring thoroughly to obtain a functional liquid; S12: Evenly blend the sodium silicate solution, calcium carbonate and citric acid in a weight ratio of 4:3:1 to obtain a sodium silicate agent; fully stir the sodium silicate agent and the functional liquid in a weight ratio of 2:5, then filter and dry to obtain a functional additive.

[0024] The mass fraction of the sodium lignin sulfonate solution in this embodiment is 4-7%; the mass fraction of the sodium silicate solution is 3-5%.

[0025] The highly breathable soft fabric of the present embodiment is prepared by the method for preparing the highly breathable soft fabric.

[0026] Embodiment 1: A method for preparing a highly breathable soft fabric, comprising the following steps: Step 1: First, spandex filament is used as the core thread, and the modified polyester filament is coated on the core thread to spin spandex coated yarn. The weight ratio of spandex filament and modified polyester filament is 2:2.5, and the linear density of spandex filament is 20D; the linear density of modified polyester filament is 50D; Step 2: Then knit the 100D / 144F imitation cotton silk and spandex covered yarn into a soft fabric in a warp and weft ratio of 4:3; the weight of the soft fabric is 320g / m 2 .

[0027] The preparation method of the modified polyester yarn of this embodiment is: S1, weigh the raw materials according to weight: 75 parts of polyester masterbatch, 2 parts of heat stabilizer, 1 part of antioxidant, 1 part of lubricant, 5 parts of synergistic agent and 4 parts of functional additives; S2, feeding the raw materials in S1 into an extruder, and after melt mixing, extruding through a spinning head, cooling, and directional stretching are performed to obtain modified polyester yarn.

[0028] The heat stabilizer of this embodiment is 3,5-di-tert-butyl-4-hydroxybenzyl diethyl phosphate; the antioxidant is antioxidant 168; the lubricant is stearic acid; the melt mixing temperature is 275° C., the cooling temperature is 25° C., and the directional stretching ratio is 1:4.

[0029] The preparation method of the supplementary agent of this embodiment is: S01: Compounding nano-attapulgite and medical stone powder in a weight ratio of 3:2, then calcining at 150° C. for 1 h, and then air-cooling to room temperature to obtain a composite material; 4 parts of the composite material and 2 parts of carboxymethyl cellulose are added to 5 parts of the sodium citrate solution by weight, and then 1 part of zinc oxide is added and stirred evenly to obtain a first additive liquid; S02: 1 part of silane coupling agent KH550, 2 parts of chitosan solution and 3 parts of kaolin are fully mixed by weight to obtain a second additive liquid; The first additive liquid and the second additive liquid are mixed and stirred in a weight ratio of 4:3 to obtain an additive compounding liquid; S03: The synergist and the additive compounding liquid are mixed in a weight ratio of 5:3, and ball-milled at a speed of 1000 r / min for 2 h. After the ball-milling is completed, the mixture is filtered and dried to obtain the synergist and additive compounding liquid.

[0030] The mass fraction of the sodium citrate solution in this embodiment is 4%; the mass fraction of the chitosan solution is 2%.

[0031] The preparation method of the tonic agent of this embodiment is: 3 parts of silicon carbide whiskers and 2 parts of barium titanate are mixed by weight and added into 5 parts of dopamine hydrochloride solution, and then 1 part of nano-silica sol and 2 parts of boron nitride are added and mixed for ultrasonic treatment. After the ultrasonic treatment is finished, the mixture is filtered and dried to obtain a tonic agent.

[0032] The mass fraction of the dopamine hydrochloride solution in this embodiment is 3%; the ultrasonic power of the blending ultrasonic treatment is 550w, and the ultrasonic treatment is performed for 1h.

[0033] The preparation method of the functional additive of this embodiment is: S11: adding 3 parts of nano titanium dioxide, 1 part of sodium dodecylbenzene sulfonate and 2 parts of nano silicon dioxide to 5 parts of sodium lignin sulfonate solution by weight and stirring thoroughly to obtain a functional liquid; S12: Evenly blend the sodium silicate solution, calcium carbonate and citric acid in a weight ratio of 4:3:1 to obtain a sodium silicate agent; fully stir the sodium silicate agent and the functional liquid in a weight ratio of 2:5, then filter and dry to obtain a functional additive.

[0034] The mass fraction of the sodium lignin sulfonate solution in this embodiment is 4%; the mass fraction of the sodium silicate solution is 3%.

[0035] The highly breathable soft fabric of the present embodiment is prepared by the method for preparing the highly breathable soft fabric.

[0036] Embodiment 2: A method for preparing a highly breathable soft fabric, comprising the following steps: Step 1: First, use spandex filament as the core yarn, and wrap the core yarn with modified polyester filament to spin spandex covered yarn. The weight ratio of spandex filament to modified polyester filament is 2:2.5. The linear density of spandex filament is 20D; the linear density of modified polyester filament is 50D; Step 2: Then, warp-knit and weft-knit 100D / 144F cotton-like filament and spandex covered yarn according to the weight ratio of 4:3 to form a soft fabric; the gram weight of the soft fabric is 360g / m 2 .

[0037] The preparation method of the modified polyester filament in this embodiment is as follows: S1, weigh the raw materials according to parts by weight: 80 parts of polyester masterbatch, 3 parts of heat stabilizer, 3 parts of antioxidant, 3 parts of lubricant, 9 parts of efficiency-enhancing and property-supplementing agent, and 7 parts of functional auxiliary agent; S2, feed the raw materials in S1 into an extruder, melt and mix them, then extrude through a spinneret, cool, and perform orientation stretching to obtain modified polyester filament.

[0038] The heat stabilizer in this embodiment is diethyl (3,5-di-tert-butyl-4-hydroxybenzyl) phosphate; the antioxidant is antioxidant 168; the lubricant is stearic acid; the melt mixing temperature is 285°C, the cooling temperature is 25°C, and the orientation stretching ratio is 1:6.

[0039] The preparation method of the efficiency-enhancing and property-supplementing agent in this embodiment is as follows: S01: Compound nano-attapulgite and medical stone powder according to the weight ratio of 3:2, then perform thermal calcination at 170°C for 1h, and then air-cool to room temperature to obtain a composite material; Add 6 parts of the composite material and 3 parts of carboxymethyl cellulose to 8 parts of sodium citrate solution by weight, and then add 3 parts of zinc oxide, and stir evenly to obtain the first additive solution; S02: Blend 2 parts of silane coupling agent KH550, 5 parts of chitosan solution and 6 parts of kaolin by weight to obtain the second additive solution; Blend the first additive solution and the second additive solution according to the weight ratio of 6:3 and stir evenly to obtain an additive compounding solution; S03: Mix the efficiency supplement agent and the additive compounding solution according to the weight ratio of 5:3, perform ball milling treatment, the ball milling speed is 1000r / min, ball mill for 2h, after the ball milling is completed, perform suction filtration and drying to obtain the efficiency-enhancing and property-supplementing agent.

[0040] The mass fraction of the sodium citrate solution in this embodiment is 7%; the mass fraction of the chitosan solution is 5%.

[0041] The preparation method of the efficiency supplement agent in this embodiment is as follows: 5 parts of silicon carbide whiskers and 4 parts of barium titanate are mixed by weight and added into 8 parts of dopamine hydrochloride solution, and then 3 parts of nano-silica sol and 3 parts of boron nitride are added and mixed for ultrasonic treatment. After the ultrasonic treatment is completed, the mixture is filtered and dried to obtain a tonic agent.

[0042] The mass fraction of the dopamine hydrochloride solution in this embodiment is 5%; the ultrasonic power of the blending ultrasonic treatment is 750w, and the ultrasonic treatment is performed for 1h.

[0043] The preparation method of the functional additive of this embodiment is: S11: adding 5 parts of nano titanium dioxide, 3 parts of sodium dodecylbenzene sulfonate and 3 parts of nano silicon dioxide to 8 parts of sodium lignin sulfonate solution by weight and stirring thoroughly to obtain a functional liquid; S12: Evenly blend the sodium silicate solution, calcium carbonate and citric acid in a weight ratio of 4:3:1 to obtain a sodium silicate agent; fully stir the sodium silicate agent and the functional liquid in a weight ratio of 2:5, then filter and dry to obtain a functional additive.

[0044] The mass fraction of the sodium lignin sulfonate solution in this embodiment is 7%; the mass fraction of the sodium silicate solution is 5%.

[0045] The highly breathable soft fabric of the present embodiment is prepared by the method for preparing the highly breathable soft fabric.

[0046] Embodiment 3: A method for preparing a highly breathable soft fabric, comprising the following steps: Step 1: First, spandex filament is used as the core thread, and the modified polyester filament is coated on the core thread to spin spandex coated yarn. The weight ratio of spandex filament and modified polyester filament is 2:2.5, and the linear density of spandex filament is 20D; the linear density of modified polyester filament is 50D; Step 2: Then knit the 100D / 144F imitation cotton silk and spandex covered yarn into a soft fabric in a warp and weft ratio of 4:3; the weight of the soft fabric is 340g / m 2 .

[0047] The preparation method of the modified polyester yarn of this embodiment is: S1, weigh the raw materials according to weight: 77.5 parts of polyester masterbatch, 2.5 parts of heat stabilizer, 2 parts of antioxidant, 2 parts of lubricant, 7 parts of synergistic agent and 5.5 parts of functional additives; S2, feeding the raw materials in S1 into an extruder, and after melt mixing, extruding through a spinning head, cooling, and directional stretching are performed to obtain modified polyester yarn.

[0048] The heat stabilizer of this embodiment is 3,5-di-tert-butyl-4-hydroxybenzyl diethyl phosphate; the antioxidant is antioxidant 168; the lubricant is stearic acid; the melt mixing temperature is 280° C., the cooling temperature is 25° C., and the directional stretching ratio is 1:5.

[0049] The preparation method of the supplementary agent of this embodiment is: S01: Compounding nano-attapulgite and medical stone powder in a weight ratio of 3:2, then calcining at 160° C. for 1 h, and then air-cooling to room temperature to obtain a composite material; Add 5 parts of the composite material and 2.5 parts of carboxymethyl cellulose to 6.5 parts of sodium citrate solution by weight, then add 2 parts of zinc oxide, stir evenly, and obtain a first additive solution; S02: 1.5 parts of silane coupling agent KH550, 3.5 parts of chitosan solution and 4.5 parts of kaolin were fully mixed by weight to obtain a second additive liquid; The first additive liquid and the second additive liquid are mixed and stirred in a weight ratio of 5:3 to obtain an additive compounding liquid; S03: The synergist and the additive compounding liquid are mixed in a weight ratio of 5:3, and ball-milled at a speed of 1000 r / min for 2 h. After the ball-milling is completed, the mixture is filtered and dried to obtain the synergist and additive compounding liquid.

[0050] The mass fraction of the sodium citrate solution in this embodiment is 5.5%; the mass fraction of the chitosan solution is 3.5%.

[0051] The preparation method of the tonic agent of this embodiment is: 4 parts of silicon carbide whiskers and 3 parts of barium titanate were mixed by weight and added into 6.5 parts of dopamine hydrochloride solution, and then 2 parts of nano-silica sol and 2.5 parts of boron nitride were added and mixed for ultrasonic treatment. After the ultrasonic treatment was completed, the mixture was filtered and dried to obtain a tonic agent.

[0052] The mass fraction of the dopamine hydrochloride solution in this embodiment is 4%; the ultrasonic power of the blending ultrasonic treatment is 600w, and the ultrasonic treatment is performed for 1h.

[0053] The preparation method of the functional additive of this embodiment is: S11: adding 4 parts of nano titanium dioxide, 2 parts of sodium dodecylbenzene sulfonate and 2.5 parts of nano silicon dioxide to 6.5 parts of sodium lignin sulfonate solution by weight and stirring thoroughly to obtain a functional liquid; S12: Evenly blend the sodium silicate solution, calcium carbonate and citric acid in a weight ratio of 4:3:1 to obtain a sodium silicate agent; fully stir the sodium silicate agent and the functional liquid in a weight ratio of 2:5, then filter and dry to obtain a functional additive.

[0054] The mass fraction of the sodium lignosulfonate solution in this embodiment is 5.5%; the mass fraction of the sodium silicate solution is 4%.

[0055] A highly breathable soft fabric of this embodiment is prepared by the preparation method of the highly breathable soft fabric.

[0056] Comparative Example 1: The difference from Example 3 is that no efficacy supplementing agent is added to the modified polyester filaments.

[0057] Comparative Example 2: The difference from Example 3 is that no additive compounding liquid is added in the preparation of the efficacy supplementing agent.

[0058] Comparative Example 3: The difference from Example 3 is that no first additive liquid is added to the additive compounding liquid.

[0059] Comparative Example 4: The difference from Example 3 is that no composite material is added to the first additive liquid.

[0060] Comparative Example 5: The difference from Example 3 is that no zinc oxide and carboxymethyl cellulose are added to the first additive liquid.

[0061] Comparative Example 6: The difference from Example 3 is that no second additive liquid is added to the additive compounding liquid.

[0062] Comparative Example 7: The difference from Example 3 is that no efficacy supplementing agent is added to the additive compounding liquid.

[0063] Comparative Example 8: The difference from Example 3 is that no functional auxiliary agent is added.

[0064] Comparative Example 9: The difference from Example 3 is that no functional liquid is added to the functional auxiliary agent.

[0065] Comparative Example 10: The difference from Example 3 is that no nano-titanium dioxide and nano-silicon dioxide are added to the functional liquid.

[0066] Comparative Example 11: The difference from Example 3 is that no sodium silicate agent is added to the functional auxiliary agent.

[0067] The products of Examples 1 to 3 and Comparative Examples 1 to 11 were respectively subjected to performance tests under conventional conditions and heat-resistant and wash-resistant conditions, and the air permeability, softness and elasticity properties were tested. The heat-resistant and wash-resistant conditions were: the products were treated at 90 °C for 1 h and then washed 10 times. The above was taken as one cycle, and the cycle was repeated 10 times. The performance test results are shown in Table 1.

[0068] Table 1 Product performance test results of Examples 1-3 and Comparative Examples 1-11: It can be seen from Examples 1-3 and Comparative Examples 1-11 that the air permeability, softness and elasticity of the product in Example 3 of the present invention are improved in a coordinated manner, and the heat resistance and washing stability of the product are remarkable; It can be seen from Comparative Example 1, Comparative Example 6 and Example 3 that when one of the modified additives and the coordination treatment agent is not added in the present invention, the performance of the product deteriorates significantly. By coordinating the modified additives and the coordination treatment agent together, the performance effect of the product is the most remarkable; It can be seen from Comparative Examples 1-11 and Example 3 that the property complexing liquid is not added in the preparation of the efficiency supplement agent, the first property complexing liquid is not added in the property complexing liquid, the composite material is not added in the first property complexing liquid, zinc oxide and carboxymethyl cellulose are not added in the first property complexing liquid, the second property complexing liquid is not added in the property complexing liquid, and the efficiency supplement agent is not added in the property complexing liquid. The performance of the product shows a trend of varying degrees of deterioration. At the same time, when the efficiency supplement agent is not added, the trend of product performance deterioration is the largest. And the property complexing liquid prepared by combining the first property complexing liquid and the second property complexing liquid obtained by the specific method of the present invention has the most remarkable product performance effect; When the functional liquid is not added in the functional auxiliary agent, nano-titanium dioxide and nano-silicon dioxide are not added in the functional liquid, and sodium silicate agent is not added in the functional auxiliary agent, the performance of the product shows a trend of deterioration. Only when the functional auxiliary agent obtained by the specific method of the present invention is used, the performance effect of the product is the most remarkable.

[0069] Since the efficiency supplement agent has a great influence on the performance of the product, further research is carried out on this.

[0070] Experimental Example 1: The only difference from Example 3 is that silicon carbide whisker treatment is not used in the preparation of the efficiency supplement agent.

[0071] Experimental Example 2: The only difference from Example 3 is that barium titanate treatment is not used in the preparation of the efficiency supplement agent.

[0072] Experimental Example 3: The only difference from Example 3 is that boron nitride treatment is not used in the preparation of the efficiency supplement agent.

[0073] Experimental Example 4: The only difference from Example 3 is that nano-silica sol treatment is not used in the preparation of the efficiency supplement agent, and water is used instead of dopamine hydrochloride solution.

[0074] The products of Experimental Examples 1 to 4 were subjected to performance tests under conventional conditions and heat-resistant and wash-resistant conditions, and the air permeability, softness and elasticity properties were tested. The heat-resistant and wash-resistant conditions were as follows: the products were treated at 90 °C for 1 h and then washed 10 times. The above was taken as one cycle, and the cycle was repeated 10 times. The performance test results are shown in Table 2.

[0075] Table 2 Performance test results of the products of Experimental Examples 1 to 4: It can be seen from Experimental Examples 1-4 that in the preparation of the supplementary agent, silicon carbide whiskers treatment was not adopted, boron nitride treatment was not adopted, and the performance change trend of the product was relatively large. At the same time, in the preparation of the supplementary agent, barium titanate treatment was not adopted, nano-silica sol treatment was not adopted in the preparation of the supplementary agent, and water was used instead of the hydrochloric acid dopamine solution, and the performance of the product showed a trend of varying degrees of deterioration. The performance effect of the product was the most significant with the supplementary agent obtained by combining silicon carbide whiskers and boron nitride with specific raw materials. Only the performance effect of the product prepared with the specific raw materials of the present invention was the most significant, and the effect of using other methods instead was not as obvious as that of the present invention.

[0076] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention.

[0077] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A preparation method of a highly breathable soft fabric, characterized in that, It includes the following steps: Step 1: First, use spandex filament as the core yarn, and wrap the core yarn with modified polyester filament to spin spandex covered yarn. The weight ratio of spandex filament to modified polyester filament is 2:2.

5. The linear density of spandex filament is 20D; the linear density of modified polyester filament is 50D; Step 2: Then, a soft fabric is knitted by warp knitting and weft knitting with 100D / 144F cotton-like silk and spandex covered yarn in a weight ratio of 4:3; the gram weight of the soft fabric is 320-360 g / m 2 .

2. The preparation method of a highly breathable soft fabric according to claim 1, characterized in that The preparation method of the modified polyester filament is as follows: S1, weigh the raw materials according to parts by weight: 75 - 80 parts of polyester masterbatch, 2 - 3 parts of heat stabilizer, 1 - 3 parts of antioxidant, 1 - 3 parts of lubricant, 5 - 9 parts of efficiency supplement agent, and 4 - 7 parts of functional auxiliary agent; S2, send the raw materials in S1 into an extruder, melt and mix them, then extrude through a spinneret, cool, and perform orientation stretching to obtain the modified polyester filament.

3. The preparation method of a highly breathable soft fabric according to claim 2, characterized in that, The heat stabilizer is diethyl (3,5 - di - tert - butyl - 4 - hydroxybenzyl) phosphate; the antioxidant is antioxidant 168; the lubricant is stearic acid; the melt mixing temperature is 275 - 285°C, the cooling temperature is 25°C, and the orientation stretching ratio is 1:(4 - 6).

4. The preparation method of a highly breathable soft fabric according to claim 2, characterized in that, The preparation method of the efficiency supplement agent is as follows: S01: Compound nano - attapulgite and medical stone powder according to a weight ratio of 3:2, then heat - calcine at 150 - 170°C for 1h, and then air - cool to room temperature to obtain a composite material; Add 4 - 6 parts of the composite material and 2 - 3 parts of carboxymethyl cellulose by weight to 5 - 8 parts of sodium citrate solution, and then add 1 - 3 parts of zinc oxide, and stir evenly to obtain the first additive liquid; S02: Blend 1 - 2 parts of silane coupling agent KH550, 2 - 5 parts of chitosan solution, and 3 - 6 parts of kaolin by weight to obtain the second additive liquid; Blend the first additive liquid and the second additive liquid according to a weight ratio of (4 - 6):3 and stir evenly to obtain an additive compounding liquid; S03: Mix the efficiency supplement agent and the additive compounding liquid according to a weight ratio of 5:3, perform ball - milling treatment at a ball - milling speed of 1000r / min for 2h. After the ball - milling is completed, filter and dry to obtain the efficiency supplement agent.

5. The preparation method of a highly breathable soft fabric according to claim 4, characterized in that, The mass fraction of the sodium citrate solution is 4 - 7%; the mass fraction of the chitosan solution is 2 - 5%.

6. The preparation method of a highly breathable soft fabric according to claim 4, characterized in that, The preparation method of the efficiency supplement agent is as follows: Add 3 - 5 parts of silicon carbide whiskers and 2 - 4 parts of barium titanate by weight to 5 - 8 parts of hydrochloric acid dopamine solution, then add 1 - 3 parts of nano - silica sol and 2 - 3 parts of boron nitride, and perform ultrasonic treatment. After the ultrasonic treatment is completed, filter and dry to obtain the efficiency supplement agent.

7. The preparation method of a highly breathable soft fabric according to claim 6, characterized in that, The mass fraction of the hydrochloric acid dopamine solution is 3 - 5%; the ultrasonic power of the co - mixing ultrasonic treatment is 550 - 750w, and the ultrasonic treatment is for 1h.

8. The preparation method of a highly breathable soft fabric according to claim 2, characterized in that, The preparation method of the functional auxiliary agent is as follows: S11: Add 3 - 5 parts of nano - titanium dioxide, 1 - 3 parts of sodium dodecyl benzene sulfonate, and 2 - 3 parts of nano - silica by weight to 5 - 8 parts of sodium lignosulfonate solution and stir evenly to obtain a functional liquid; S12: Blend sodium silicate solution, calcium carbonate, and citric acid according to a weight ratio of 4:3:1 to obtain a sodium silicate agent; blend the sodium silicate agent and the functional liquid according to a weight ratio of 2:5 and stir evenly, then filter and dry to obtain the functional auxiliary agent.

9. The preparation method of a highly breathable soft fabric according to claim 8, characterized in that, The mass fraction of the sodium lignosulfonate solution is 4 - 7%; the mass fraction of the sodium silicate solution is 3 - 5%.

10. A highly breathable soft fabric, which is prepared by the preparation method of a highly breathable soft fabric according to any one of claims 1-9.

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