A kind of highly breathable soft fabric and preparation method thereof

Abstract

The present invention relates to the technical field of soft and supple fabrics, and more particularly to a highly breathable soft and supple fabric and a preparation method thereof, comprising the following steps: Step 1: First, spandex filaments are used as core yarns, and modified polyester yarns are coated on the core yarns to form spandex-coated yarns, wherein the ratio of spandex filaments to modified polyester yarns is 2:2.5, and the linear density of the spandex filaments is 20D; the linear density of the modified polyester yarns is 50D. The soft and supple fabric of the present invention uses spandex filaments as core yarns, which are coated with modified polyester yarns and then knitted with 100D / 144F imitation cotton yarns through warp and weft knitting. The resulting soft and supple fabric has a balanced and improved air permeability, softness, and elasticity, and has excellent heat resistance and water washing stability.

Description

Technical Field

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

[0002] With the continuous development of science and technology, fabrics have been widely used in clothing, home furnishings, industrial textiles and other fields. However, existing soft fabrics have poor breathability, softness and elasticity. It is difficult to balance the breathability, softness and elasticity of these fabrics. Furthermore, these fabrics have poor heat resistance and washing stability, which limits their effectiveness. Summary of the Invention

[0003] In view of 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 technology.

[0004] The present invention solves the technical problem by adopting the following technical solutions:

[0005] The present invention provides a method for preparing a highly breathable soft fabric, comprising the following steps:

[0006] Step 1: First, spandex filament is used as the core yarn, and modified polyester yarn is used to cover the core yarn to spin spandex covered yarn. The weight ratio of spandex filament and modified polyester yarn is 2:2.5. The linear density of spandex filament is 20D; the linear density of modified polyester yarn is 50D.

[0007] Step 2: Then knit the 100D / 144F imitation cotton yarn 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 .

[0008] Preferably, the preparation method of the modified polyester yarn is:

[0009] S1, weigh the raw materials according to weight:

[0010] 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 supplementary agent, and 4-7 parts of functional additives;

[0011] S2, feeding the raw materials in S1 into an extruder, melting and mixing, and then extruding through a spinning head, cooling, and directional stretching to obtain modified polyester yarn.

[0012] Preferably, the heat stabilizer 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).

[0013] Preferably, the preparation method of the synergistic tonic agent is:

[0014] S01: Compounding nano-attapulgite and medical stone powder in a weight ratio of 3:2, calcining at 150-170°C for 1 hour, and then air-cooling to room temperature to obtain a composite material;

[0015] 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 and stir evenly to obtain a first additive solution;

[0016] S02: 1-2 parts of silane coupling agent KH550, 2-5 parts of chitosan solution and 3-6 parts of kaolin are fully blended by weight to obtain a second additive liquid;

[0017] The first additive liquid and the second additive liquid are mixed and stirred thoroughly in a weight ratio of (4-6):3 to obtain an additive compounding liquid;

[0018] S03: The synergist and the additive compounding solution are mixed in a weight ratio of 5:3 and ball-milled at a ball-milling 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 solution.

[0019] Preferably, the mass fraction of the sodium citrate solution is 4-7%; the mass fraction of the chitosan solution is 2-5%.

[0020] Preferably, the preparation method of the tonic is:

[0021] 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, and then 1-3 parts of nano-silica sol and 2-3 parts of boron nitride are added and ultrasonically treated. After the ultrasonic treatment is completed, the mixture is filtered and dried to obtain a tonic.

[0022] 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.

[0023] Preferably, the preparation method of the functional additive is:

[0024] S11: adding 3-5 parts of nano-titanium dioxide, 1-3 parts of sodium dodecylbenzenesulfonate 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;

[0025] S12: Sodium silicate solution, calcium carbonate and citric acid are uniformly mixed in a weight ratio of 4:3:1 to obtain a sodium silicate agent; sodium silicate agent and functional liquid are fully stirred in a weight ratio of 2:5, and then filtered and dried to obtain a functional additive.

[0026] Preferably, the mass fraction of the sodium lignin sulfonate solution is 4-7%; the mass fraction of the sodium silicate solution is 3-5%.

[0027] The present invention also provides a highly breathable soft fabric, which is prepared by the method for preparing the highly breathable soft fabric.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The soft fabric of the present invention adopts spandex filament as core yarn, is improved by coating with modified polyester yarn, and is further knitted with 100D / 144F imitation cotton yarn warp and weft. The obtained soft fabric has improved breathability, softness and elasticity, and the product has excellent heat resistance and water washing stability. The modified polyester yarn adopts polyester masterbatch, heat stabilizer, antioxidant and lubricant as functional additives, and at the same time, the additive and functional additive are added to coordinate with each other. The obtained modified polyester yarn optimizes the performance coordination and performance stability of the product in the system. The additive and functional additive is obtained by mixing and ball milling the additive and the additive compounding liquid. The silicon carbide whiskers in the additive are based on the whisker-like structure, and are coordinated with barium titanate and boron nitride raw materials, and then dopamine hydrochloride solution and nano silica sol are coordinated. After the compounding improvement between the raw materials, and the additive compounding liquid is coordinated to improve the coordination, the first additive liquid, The second additive liquid is prepared by blending and stirring. The composite material, carboxymethyl cellulose and sodium citrate solution in the first additive liquid are optimized by blending with zinc oxide. At the same time, the nano-attapulgite and medical stone powder in the composite material are optimized and improved through calcination. At the same time, the silane coupling agent KH550, chitosan solution and kaolin are fully blended to obtain the second additive liquid. Through the blending optimization between the raw materials, the obtained product can achieve the coordinated and balanced improvement of the fabric's breathability, softness and elasticity, and the product has significant heat resistance and water washing stability. The functional additive is prepared by blending sodium silicate solution, calcium carbonate and citric acid to prepare sodium silicate agent; and then nano-titanium dioxide, sodium dodecylbenzene sulfonate and nano-silica and sodium lignin sulfonate solution are formulated into a functional liquid. By co-blending the functional liquid with the sodium silicate agent, the functional additive blending and synergistic supplementing agent are obtained, and the coordination effect is improved, thereby further optimizing and improving the performance of the product. DETAILED DESCRIPTION

[0030] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] The method for preparing a highly breathable soft fabric of this embodiment comprises the following steps:

[0032] Step 1: First, spandex filament is used as the core yarn, and modified polyester yarn is used to cover the core yarn to spin spandex covered yarn. The weight ratio of spandex filament and modified polyester yarn is 2:2.5. The linear density of spandex filament is 20D; the linear density of modified polyester yarn is 50D.

[0033] Step 2: Then knit the 100D / 144F imitation cotton yarn 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 .

[0034] The preparation method of the modified polyester yarn of this embodiment is:

[0035] S1, weigh the raw materials according to weight:

[0036] 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 supplementary agent, and 4-7 parts of functional additives;

[0037] S2, feeding the raw materials in S1 into an extruder, melting and mixing, and then extruding through a spinning head, cooling, and directional stretching to obtain modified polyester yarn.

[0038] 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).

[0039] The preparation method of the supplementary agent of this embodiment is as follows:

[0040] S01: Compounding nano-attapulgite and medical stone powder in a weight ratio of 3:2, calcining at 150-170°C for 1 hour, and then air-cooling to room temperature to obtain a composite material;

[0041] 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 and stir evenly to obtain a first additive solution;

[0042] S02: 1-2 parts of silane coupling agent KH550, 2-5 parts of chitosan solution and 3-6 parts of kaolin are fully blended by weight to obtain a second additive liquid;

[0043] The first additive liquid and the second additive liquid are mixed and stirred thoroughly in a weight ratio of (4-6):3 to obtain an additive compounding liquid;

[0044] S03: The synergist and the additive compounding solution are mixed in a weight ratio of 5:3 and ball-milled at a ball-milling 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 solution.

[0045] The mass fraction of the sodium citrate solution in this embodiment is 4-7%; the mass fraction of the chitosan solution is 2-5%.

[0046] The preparation method of the tonic of this embodiment is as follows:

[0047] 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, and then 1-3 parts of nano-silica sol and 2-3 parts of boron nitride are added and ultrasonically treated. After the ultrasonic treatment is completed, the mixture is filtered and dried to obtain a tonic.

[0048] 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.

[0049] The preparation method of the functional additive of this embodiment is:

[0050] S11: adding 3-5 parts of nano-titanium dioxide, 1-3 parts of sodium dodecylbenzenesulfonate 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;

[0051] S12: Sodium silicate solution, calcium carbonate and citric acid are uniformly mixed in a weight ratio of 4:3:1 to obtain a sodium silicate agent; sodium silicate agent and functional liquid are fully stirred in a weight ratio of 2:5, and then filtered and dried to obtain a functional additive.

[0052] 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%.

[0053] The highly breathable soft fabric of this embodiment is prepared by the method for preparing the highly breathable soft fabric.

[0054] Example 1: A method for preparing a highly breathable soft fabric, comprising the following steps:

[0055] Step 1: First, spandex filament is used as the core yarn, and modified polyester yarn is used to cover the core yarn to spin spandex covered yarn. The weight ratio of spandex filament and modified polyester yarn is 2:2.5. The linear density of spandex filament is 20D; the linear density of modified polyester yarn is 50D.

[0056] Step 2: Then knit the 100D / 144F imitation cotton yarn 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 / m2 .

[0057] The preparation method of the modified polyester yarn of this embodiment is:

[0058] S1, weigh the raw materials according to weight:

[0059] 75 parts of polyester masterbatch, 2 parts of heat stabilizer, 1 part of antioxidant, 1 part of lubricant, 5 parts of synergist and supplementary agent, and 4 parts of functional additives;

[0060] S2, feeding the raw materials in S1 into an extruder, melting and mixing, and then extruding through a spinning head, cooling, and directional stretching to obtain modified polyester yarn.

[0061] In this embodiment, the heat stabilizer 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.

[0062] The preparation method of the supplementary agent of this embodiment is as follows:

[0063] S01: Nano-attapulgite and medical stone powder were compounded in a weight ratio of 3:2, and then calcined at 150°C for 1 hour, and then air-cooled to room temperature to obtain a composite material;

[0064] 4 parts of the composite material and 2 parts of carboxymethyl cellulose were added to 5 parts of sodium citrate solution by weight, followed by 1 part of zinc oxide, and stirred to obtain a first additive solution;

[0065] S02: 1 part of silane coupling agent KH550, 2 parts of chitosan solution and 3 parts of kaolin were fully blended by weight to obtain a second additive liquid;

[0066] The first additive liquid and the second additive liquid are mixed and stirred thoroughly in a weight ratio of 4:3 to obtain an additive compounding liquid;

[0067] S03: The synergist and the additive compounding solution are mixed in a weight ratio of 5:3 and ball-milled at a ball-milling 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 solution.

[0068] The mass fraction of the sodium citrate solution in this embodiment is 4%; the mass fraction of the chitosan solution is 2%.

[0069] The preparation method of the tonic of this embodiment is as follows:

[0070] 3 parts of silicon carbide whiskers and 2 parts of barium titanate were blended and added into 5 parts of dopamine hydrochloride solution according to weight, and then 1 part of nano-silica sol and 2 parts of boron nitride were added and ultrasonically treated. After the ultrasonic treatment was completed, the mixture was filtered and dried to obtain a tonic.

[0071] 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.

[0072] The preparation method of the functional additive of this embodiment is:

[0073] S11: adding 3 parts of nano-titanium dioxide, 1 part of sodium dodecylbenzenesulfonate 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;

[0074] S12: Sodium silicate solution, calcium carbonate and citric acid are uniformly mixed in a weight ratio of 4:3:1 to obtain a sodium silicate agent; sodium silicate agent and functional liquid are fully stirred in a weight ratio of 2:5, and then filtered and dried to obtain a functional additive.

[0075] The mass fraction of the sodium lignin sulfonate solution in this embodiment is 4%; the mass fraction of the sodium silicate solution is 3%.

[0076] The highly breathable soft fabric of this embodiment is prepared by the method for preparing the highly breathable soft fabric.

[0077] Example 2: A method for preparing a highly breathable soft fabric, comprising the following steps:

[0078] Step 1: First, spandex filament is used as the core yarn, and modified polyester yarn is used to cover the core yarn to spin spandex covered yarn. The weight ratio of spandex filament and modified polyester yarn is 2:2.5. The linear density of spandex filament is 20D; the linear density of modified polyester yarn is 50D.

[0079] Step 2: Then knit the 100D / 144F imitation cotton yarn and spandex covered yarn into a soft fabric in a warp and weft ratio of 4:3; the weight of the soft fabric is 360g / m 2 .

[0080] The preparation method of the modified polyester yarn of this embodiment is:

[0081] S1, weigh the raw materials according to weight:

[0082] 80 parts of polyester masterbatch, 3 parts of heat stabilizer, 3 parts of antioxidant, 3 parts of lubricant, 9 parts of synergist and supplementary agent, and 7 parts of functional additives;

[0083] S2, feeding the raw materials in S1 into an extruder, melting and mixing, and then extruding through a spinning head, cooling, and directional stretching to obtain modified polyester yarn.

[0084] In this embodiment, the heat stabilizer 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 285° C., the cooling temperature is 25° C., and the directional stretching ratio is 1:6.

[0085] The preparation method of the supplementary agent of this embodiment is as follows:

[0086] S01: Nano-attapulgite and medical stone powder were compounded in a weight ratio of 3:2, and then calcined at 170°C for 1 hour, and then air-cooled to room temperature to obtain a composite material;

[0087] Add 6 parts of the composite material and 3 parts of carboxymethyl cellulose to 8 parts of sodium citrate solution by weight, then add 3 parts of zinc oxide and stir evenly to obtain a first additive solution;

[0088] S02: 2 parts of silane coupling agent KH550, 5 parts of chitosan solution and 6 parts of kaolin are fully blended by weight to obtain a second additive liquid;

[0089] The first additive liquid and the second additive liquid are mixed and stirred thoroughly in a weight ratio of 6:3 to obtain an additive compounding liquid;

[0090] S03: The synergist and the additive compounding solution are mixed in a weight ratio of 5:3 and ball-milled at a ball-milling 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 solution.

[0091] The mass fraction of the sodium citrate solution in this embodiment is 7%; the mass fraction of the chitosan solution is 5%.

[0092] The preparation method of the tonic of this embodiment is as follows:

[0093] 5 parts of silicon carbide whiskers and 4 parts of barium titanate were blended and added into 8 parts of dopamine hydrochloride solution, and then 3 parts of nano-silica sol and 3 parts of boron nitride were added and ultrasonically treated. After the ultrasonic treatment was completed, the mixture was filtered and dried to obtain a tonic.

[0094] 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.

[0095] The preparation method of the functional additive of this embodiment is:

[0096] S11: adding 5 parts of nano-titanium dioxide, 3 parts of sodium dodecylbenzenesulfonate 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;

[0097] S12: Sodium silicate solution, calcium carbonate and citric acid are uniformly mixed in a weight ratio of 4:3:1 to obtain a sodium silicate agent; sodium silicate agent and functional liquid are fully stirred in a weight ratio of 2:5, and then filtered and dried to obtain a functional additive.

[0098] The mass fraction of the sodium lignin sulfonate solution in this embodiment is 7%; the mass fraction of the sodium silicate solution is 5%.

[0099] The highly breathable soft fabric of this embodiment is prepared by the method for preparing the highly breathable soft fabric.

[0100] Example 3: A method for preparing a highly breathable soft fabric, comprising the following steps:

[0101] Step 1: First, spandex filament is used as the core yarn, and modified polyester yarn is used to cover the core yarn to spin spandex covered yarn. The weight ratio of spandex filament and modified polyester yarn is 2:2.5. The linear density of spandex filament is 20D; the linear density of modified polyester yarn is 50D.

[0102] Step 2: Then knit the 100D / 144F imitation cotton yarn 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 .

[0103] The preparation method of the modified polyester yarn of this embodiment is:

[0104] S1, weigh the raw materials according to weight:

[0105] 77.5 parts of polyester masterbatch, 2.5 parts of heat stabilizer, 2 parts of antioxidant, 2 parts of lubricant, 7 parts of synergist and supplementary agent, and 5.5 parts of functional additives;

[0106] S2, feeding the raw materials in S1 into an extruder, melting and mixing, and then extruding through a spinning head, cooling, and directional stretching to obtain modified polyester yarn.

[0107] In this embodiment, the heat stabilizer 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.

[0108] The preparation method of the supplementary agent of this embodiment is as follows:

[0109] S01: Nano-attapulgite and medical stone powder were compounded in a weight ratio of 3:2, and then calcined at 160°C for 1 hour, and then air-cooled to room temperature to obtain a composite material;

[0110] 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 and stir evenly to obtain a first additive solution;

[0111] S02: 1.5 parts of silane coupling agent KH550, 3.5 parts of chitosan solution and 4.5 parts of kaolin were fully blended by weight to obtain a second additive liquid;

[0112] The first additive liquid and the second additive liquid are mixed and stirred thoroughly in a weight ratio of 5:3 to obtain an additive compounding liquid;

[0113] S03: The synergist and the additive compounding solution are mixed in a weight ratio of 5:3 and ball-milled at a ball-milling 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 solution.

[0114] The mass fraction of the sodium citrate solution in this embodiment is 5.5%; the mass fraction of the chitosan solution is 3.5%.

[0115] The preparation method of the tonic of this embodiment is as follows:

[0116] 4 parts of silicon carbide whiskers and 3 parts of barium titanate were blended 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 ultrasonically treated. After the ultrasonic treatment was completed, the mixture was filtered and dried to obtain a tonic.

[0117] 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.

[0118] The preparation method of the functional additive of this embodiment is:

[0119] S11: adding 4 parts of nano-titanium dioxide, 2 parts of sodium dodecylbenzenesulfonate 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;

[0120] S12: Sodium silicate solution, calcium carbonate and citric acid are uniformly mixed in a weight ratio of 4:3:1 to obtain a sodium silicate agent; sodium silicate agent and functional liquid are fully stirred in a weight ratio of 2:5, and then filtered and dried to obtain a functional additive.

[0121] The mass fraction of the sodium lignin sulfonate solution in this embodiment is 5.5%; the mass fraction of the sodium silicate solution is 4%.

[0122] The highly breathable soft fabric of this embodiment is prepared by the method for preparing the highly breathable soft fabric.

[0123] Comparative Example 1:

[0124] The difference from Example 3 is that no synergistic agent is added to the modified polyester yarn.

[0125] Comparative Example 2:

[0126] The difference from Example 3 is that no additive reconstitution liquid is added during the preparation of the additive supplement.

[0127] Comparative Example 3:

[0128] The difference from Example 3 is that the first additive liquid is not added to the additive multiplexing liquid.

[0129] Comparative Example 4:

[0130] The difference from Example 3 is that no composite material is added to the first additive liquid.

[0131] Comparative Example 5:

[0132] The difference from Example 3 is that zinc oxide and carboxymethyl cellulose are not added to the first additive liquid.

[0133] Comparative Example 6:

[0134] The difference from Example 3 is that no second additive liquid is added to the additive multiplexing liquid.

[0135] Comparative Example 7:

[0136] The difference from Example 3 is that no tonic agent is added to the additive compounding solution.

[0137] Comparative Example 8:

[0138] The difference from Example 3 is that no functional additives are added.

[0139] Comparative Example 9:

[0140] The difference from Example 3 is that no functional liquid is added to the functional additive.

[0141] Comparative Example 10:

[0142] The difference from Example 3 is that nano-titanium dioxide and nano-silicon dioxide are not added to the functional liquid.

[0143] Comparative Example 11:

[0144] The difference from Example 3 is that no sodium silicate agent is added to the functional additives.

[0145] The products of Examples 1 to 3 and Comparative Examples 1 to 11 were subjected to performance tests under conventional conditions and heat-resistant and water-washing resistance conditions to test breathability, softness and elasticity. The heat-resistant and water-washing resistance conditions were as follows: the product was treated at 90°C for 1 hour and then washed 10 times (the above is one cycle, and the number of cycles is 10). The performance test results are shown in Table 1.

[0146] Table 1 Product performance test results of Examples 1 to 3 and Comparative Examples 1 to 11:

[0147]

[0148] From Examples 1 to 3 and Comparative Examples 1 to 11, it can be seen that the breathability, softness and elasticity of the product of Example 3 of the present invention are improved in a coordinated manner, and the heat resistance and water washing stability of the product are significantly improved;

[0149] From Comparative Example 1, Comparative Example 6 and Example 3, it can be seen that the performance of the product is significantly deteriorated when neither the modifying additive nor the coordinating agent is added. The product performance effect is most significant when the modifying additive and the coordinating agent are coordinated and formulated together.

[0150] As can be seen from Comparative Examples 1 to 11 and Example 3, the performance of the products without adding the additive compounding liquid, without adding the first additive liquid, without adding the composite material, without adding zinc oxide and carboxymethyl cellulose, without adding the second additive liquid, and without adding the tonic agent in the preparation of the additive compounding liquid all showed a trend of deterioration to varying degrees. The performance of the product without adding the tonic agent showed the greatest deterioration trend. The additive compounding liquid prepared by combining the first additive liquid obtained by the specific method of the present invention with the second additive liquid showed the most significant performance effect.

[0151] When no functional liquid is added to the functional additive, nano titanium dioxide and nano silicon dioxide are not added to the functional liquid, and sodium silicate is not added to the functional additive, the performance of the product tends to deteriorate. Only the functional additive obtained by the specific method of the present invention has the most significant performance effect of the product.

[0152] Since the tonic has a significant effect on the performance of the product, further research is needed.

[0153] Experimental Example 1:

[0154] The only difference from Example 3 is that silicon carbide whisker treatment is not used in the preparation of the tonic.

[0155] Experimental Example 2:

[0156] The only difference from Example 3 is that barium titanate treatment is not used in the preparation of the tonic.

[0157] Experimental Example 3:

[0158] The only difference from Example 3 is that boron nitride treatment is not used in the preparation of the tonic.

[0159] Experimental Example 4:

[0160] The only difference from Example 3 is that nano-silica sol treatment is not used in the preparation of the tonic, and water is used instead of the dopamine hydrochloride solution.

[0161] The products of Experimental Examples 1 to 4 were subjected to performance tests under normal conditions and heat-resistant and water-washing resistance conditions, respectively, to test their breathability, softness, and elasticity. The heat-resistant and water-washing resistance conditions were as follows: the product was treated at 90°C for 1 hour and then washed 10 times (the above constituted one cycle, with 10 cycles). The performance test results are shown in Table 2.

[0162] Table 2 Product performance test results of Experimental Examples 1 to 4:

[0163]

[0164] As can be seen from Experimental Examples 1-4, when silicon carbide whiskers and boron nitride were not used in the preparation of the tonic agent, the performance of the product showed a significant trend of change. At the same time, when barium titanate treatment and nano-silica sol treatment were not used in the preparation of the tonic agent, and when water was used instead of dopamine hydrochloride solution, the performance of the product showed a trend of deterioration to varying degrees. The tonic agent obtained by combining silicon carbide whiskers and boron nitride with specific raw materials had the most significant product performance effect. Only the product prepared by using the specific raw materials of the present invention had the most significant performance effect. The use of other methods instead was not as obvious as the effect of the present invention.

[0165] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

[0166] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A method for preparing a highly breathable soft fabric, characterized in that: The following steps are involved: Step 1: First, spandex filament is used as the core yarn, and modified polyester yarn is used to cover the core yarn to spin spandex covered yarn. The weight ratio of spandex filament and modified polyester yarn is 2:2.

5. The linear density of spandex filament is 20D; the linear density of modified polyester yarn is 50D. The preparation method of the modified polyester yarn 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 supplementary agent, and 4-7 parts of functional additives; S2, feeding the raw materials in S1 into an extruder, melting and mixing, extruding through a spinning head, cooling, and directional stretching to obtain modified polyester yarn; The preparation method of the synergistic tonic agent is as follows: S01: Compounding nano-attapulgite and medical stone powder in a weight ratio of 3:2, calcining at 150-170°C for 1 hour, 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 and stir evenly to obtain a first additive solution; S02: 1-2 parts of silane coupling agent KH550, 2-5 parts of chitosan solution and 3-6 parts of kaolin are fully blended by weight to obtain a second additive liquid; The first additive liquid and the second additive liquid are mixed and stirred thoroughly in a weight ratio of (4-6):3 to obtain an additive compounding liquid; S03: The synergist and the additive compounding solution were 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 was completed, the mixture was filtered and dried to obtain the synergist and additive compounding solution; The preparation method of the tonic is as follows: 3-5 parts of silicon carbide whiskers and 2-4 parts of barium titanate are mixed and added to 5-8 parts of dopamine hydrochloride solution, followed by adding 1-3 parts of nano-silica sol and 2-3 parts of boron nitride, and ultrasonically treating the mixture. After the ultrasonic treatment is completed, the mixture is filtered and dried to obtain a tonic agent; The preparation method of the functional additive is: S11: adding 3-5 parts of nano-titanium dioxide, 1-3 parts of sodium dodecylbenzenesulfonate 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 blending sodium silicate solution, calcium carbonate, and citric acid in a weight ratio of 4:3:1 to obtain a sodium silicate agent; thoroughly stirring the sodium silicate agent and the functional liquid in a weight ratio of 2:5, then filtering and drying to obtain a functional additive; Step 2: Then knit the 100D / 144F imitation cotton yarn 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 .

2. The method for preparing a highly breathable soft fabric according to claim 1, wherein: The heat stabilizer 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).

3. The method for preparing a highly breathable soft fabric according to claim 1, characterized in that: The mass fraction of the sodium citrate solution is 4-7%; the mass fraction of the chitosan solution is 2-5%.

4. The method for preparing a highly breathable soft fabric according to claim 1, wherein: 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 1 hour.

5. The method for preparing a highly breathable soft fabric according to claim 1, characterized in that: The mass fraction of the sodium lignin sulfonate solution is 4-7%; the mass fraction of the sodium silicate solution is 3-5%.

6. A highly breathable soft fabric, prepared by the method for preparing a highly breathable soft fabric according to any one of claims 1 to 5.

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