Drying-free textile size composition as well as preparation method and application thereof

Abstract

The invention discloses a drying-free textile size composition which comprises a water-based polyacrylate emulsion, a polyhydroxy polymer, a coalescing agent, a textile size agent and water, the particle size of the water-based polyacrylate emulsion is in a range of 50-200 nm; the glass transition temperature Tg of polyacrylate in the water-based polyacrylate emulsion ranges from-15 DEG C to 20 DEG C. After yarn sizing, the textile sizing agent composition can be rapidly dried at the room temperature, the step of drying in a steam oven is omitted, and therefore the energy-saving effect is truly achieved.

Description

Technical Field

[0001] This invention relates to the field of textile sizing compositions, and more particularly to a composition, preparation method, and application of a no-drying textile sizing. Background Technology

[0002] In the textile industry, sizing warp yarns with textile sizing agents is a crucial step in improving the weaveability of yarns such as polyester and nylon, enabling them to withstand repeated stretching, bending, and friction during weaving. In traditional warp sizing, the sizing agent covers the yarn surface and penetrates into the yarn's interior. After drying in a steam oven, a soft and tough sizing film forms on the yarn surface, significantly improving its abrasion resistance and tensile strength. This also prevents fiber fuzzing, reduces yarn breakage during weaving, and thus significantly improves weaving efficiency. However, the heat energy consumed by drying the yarn in the steam oven accounts for 70-80% of the total sizing energy consumption, making it the main component of sizing heat energy consumption. Therefore, researching a novel textile sizing agent composition that lowers the oven drying temperature or eliminates the oven drying step can significantly reduce steam energy consumption in the textile industry, which is of great significance for energy conservation and emission reduction across the entire textile sector.

[0003] Currently, the mainstream textile sizing agents on the market fall into four main categories: starch, polyvinyl alcohol, polyester, and polyacrylate. Among them, starch-based sizing agents account for 70% of the entire sizing agent market due to their inexpensive and readily available raw materials and strong environmental friendliness. Modified starch is commonly used in textiles. Modified starch sizing has good film-forming properties, strong affinity with fibers, and is easy to desizing. However, the sizing agent does not provide sufficient yarn strength, is not abrasion resistant, and has insufficient affinity with polyester fibers. Polyvinyl alcohol (PVA) sizing agents have good fluidity, high film strength, and good flexibility. However, PVA sizing agents are difficult to desizing, and the resulting PVA wastewater is difficult to biodegrade, making wastewater treatment challenging. The EU has banned their use. Polyester sizing agents have a strong affinity with polyester fibers due to their similar polymer structure, and they are easy to desizing. However, polyester sizing agents are easily degraded under neutral and alkaline conditions, resulting in low yarn strength after sizing, which limits their application. Polyacrylate is a widely used new type of textile sizing agent. It has low viscosity, good fluidity, and good adhesion to synthetic fibers. It can be mixed well with starch and PVA sizing agents and is suitable for sizing warp yarns of various fibers. However, polyacrylate sizing agents are expensive, suffer from severe moisture absorption and re-adhesion, and have insufficient film strength. In the textile industry, whether these types of textile sizing agents are used alone or in combination, the yarn must be dried in a high-temperature steam oven after sizing before subsequent weaving steps can be carried out.

[0004] There is currently limited publicly available research on dry-free textile sizing agents. For example, Chinese invention patent CN 110685155A discloses a fast-drying crosslinked polyacrylic textile sizing agent and its preparation method. This sizing agent is copolymerized from components such as acrylate, methyl methacrylate, methacrylic acid, crosslinking agent, ammonium persulfate, sodium dodecyl sulfate, alkylphenol polyoxyethylene ether, sodium bicarbonate, and ammonia. This sizing agent only shortens the drying time and improves the drying efficiency; it does not completely eliminate the oven drying step and achieve a dry-free effect. Summary of the Invention

[0005] Based on this, the purpose of this invention is to propose a no-drying textile sizing composition, its preparation method, and its application. The aqueous polyacrylate emulsion has a particle size in the range of 50-200 nm, and the glass transition temperature (Tg) of the polyacrylate in the aqueous polyacrylate emulsion is in the range of -15 to 20°C. With the combined action of film-forming aids, and with the addition of polyhydroxy polymers and other auxiliaries, a no-drying textile sizing composition can be obtained. After sizing the yarn with this textile sizing composition, it can be quickly dried at room temperature, eliminating the need for a steam oven drying step, thus truly achieving energy-saving effects.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a no-drying textile sizing composition, comprising an aqueous polyacrylate emulsion, a polyhydroxy polymer, a film-forming aid, a textile sizing aid, and water; the particle size of the aqueous polyacrylate emulsion is in the range of 50-200 nm; the glass transition temperature (Tg) of the polyacrylate in the aqueous polyacrylate emulsion is in the range of -15 to 20 °C.

[0007] Preferably, a no-drying textile sizing composition comprises, by weight percentage, the following components: 2% to 12% aqueous polyacrylate emulsion (solid content calculated at 50%), 0.5% to 3% polyhydroxy polymer, 0.1% to 0.5% film-forming aid, 0.3% to 2% textile sizing aid, and the remainder being water.

[0008] Preferably, the polyhydroxy polymer is one or more of polyvinyl alcohol, modified starch, sodium carboxymethyl cellulose, hydroxyethyl cellulose, guar gum, and xanthan gum.

[0009] Preferably, textile sizing auxiliaries include antistatic agents, wetting agents, preservatives, lubricants, and defoamers.

[0010] Preferably, a no-drying textile sizing composition comprises, by mass percentage: 2%~12% aqueous polyacrylate emulsion, 0.3%~1.5% modified starch, 0.05%~0.2% wetting agent, 0.05%~0.3% lubricant, 0.1%~0.5% antistatic agent, 0.05%~0.2% preservative, 0.1%~0.5% film-forming aid, 0.02%~0.2% defoamer, with the remainder being water.

[0011] Preferably, a no-drying textile sizing composition comprises, by mass percentage: 2%~12% aqueous polyacrylate emulsion, 0.2%~1% polyvinyl alcohol, 0.3%~1.5% modified starch, 0.05%~0.2% wetting agent, 0.05%~0.3% lubricant, 0.1%~0.5% antistatic agent, 0.05%~0.2% preservative, 0.1%~0.5% film-forming aid, 0.02%~0.2% defoamer, with the remainder being water.

[0012] Preferably, a no-drying textile sizing composition comprises, by mass percentage: 2%~12% aqueous polyacrylate emulsion, 0.5%~1.5% sodium carboxymethyl cellulose, 0.3%~1.5% modified starch, 0.05%~0.2% wetting agent, 0.05%~0.3% lubricant, 0.1%~0.5% antistatic agent, 0.05%~0.2% preservative, 0.1%~0.5% film-forming aid, 0.02%~0.2% defoamer, with the remainder being water.

[0013] Preferably, a no-drying textile sizing composition comprises, by mass percentage: 2%~12% aqueous polyacrylate emulsion, 0.5%~2% hydroxyethyl cellulose, 0.3%~1.5% modified starch, 0.05%~0.2% wetting agent, 0.05%~0.3% lubricant, 0.1%~0.5% antistatic agent, 0.05%~0.2% preservative, 0.1%~0.5% film-forming aid, 0.02%~0.2% defoamer, with the remainder being water.

[0014] Preferably, a no-drying textile sizing composition comprises, by mass percentage, the following components: 2%~12% aqueous polyacrylate emulsion, 0.5%~2% guar gum, 0.3%~1.5% modified starch, 0.05%~0.2% wetting agent, 0.05%~0.3% lubricant, 0.1%~0.5% antistatic agent, 0.05%~0.2% preservative, 0.1%~0.5% film-forming aid, 0.02%~0.2% defoamer, with the remainder being water.

[0015] Preferably, a no-drying textile sizing composition comprises, by mass percentage: 2%~12% aqueous polyacrylate emulsion, 0.5%~1.5% xanthan gum, 0.3%~1.5% modified starch, 0.05%~0.2% wetting agent, 0.05%~0.3% lubricant, 0.1%~0.5% antistatic agent, 0.05%~0.2% preservative, 0.1%~0.5% film-forming aid, 0.02%~0.2% defoamer, with the remainder being water.

[0016] Preferably, the degree of alcoholysis of polyvinyl alcohol is in the range of 80% to 89%, and the weight-average molecular weight is in the range of 10,000 to 100,000.

[0017] Preferably, the modified starch is one or more of corn modified starch, potato modified starch, cassava modified starch, sweet potato modified starch and wheat modified starch.

[0018] Preferably, the antistatic agent is one or more of the following: fatty alcohol polyoxyethylene ether, nonylphenol polyoxyethylene ether, sorbitan monostearate polyoxyethylene ether, sorbitan monolaurate polyoxyethylene ether, sodium lauroyl sulfonate, sodium alkyl sulfosuccinate, sodium lauryl sulfate, sodium lauryl ether sulfate, potassium salt of fatty alcohol phosphate, sodium salt of alkyl phosphate diester, alkyl thiosuccinate, and MOA3PK.

[0019] Preferably, the wetting agent is one or more of the following: fatty alcohol polyoxyethylene ether AEO-3, fatty alcohol polyoxyethylene ether AEO-7, fatty alcohol polyoxyethylene ether AEO-9, fatty alcohol polyoxyethylene ether JFC-1, fatty alcohol polyoxyethylene ether JFC-2, sorbitan ester and its polyoxyethylene derivative Tween 20, sorbitan ester and its polyoxyethylene derivative Tween 60, and sorbitan ester and its polyoxyethylene derivative Tween 80.

[0020] Preferably, the preservative is 1,2-benzisothiazolin-3-one.

[0021] Preferably, the lubricant is a polyether-modified waterborne silicone oil.

[0022] Preferably, the film-forming aid is one or more of the following: ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, 2-methyl-2,4-pentanediol, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, propylene glycol tert-butyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, tripropylene glycol n-butyl ether, propylene glycol methyl ether acetate, dipropylene glycol methyl ether acetate, dipropylene glycol dimethyl ether, alcohol ester dodecyl, ethylene glycol phenyl ether, and propylene glycol phenyl ether.

[0023] A method for preparing a no-drying textile sizing composition, the preparation method is as follows: S1: Add the polyhydroxy polymer to water under stirring, heat to above 90°C, and then stir continuously for at least 4 hours to obtain an aqueous solution of the polyhydroxy polymer. S2: Cool the aqueous solution of the polyhydroxy polymer obtained in S1. When the temperature of the aqueous solution is below 40°C, add the aqueous polyacrylate emulsion and stir continuously for at least 2 hours to make it uniformly dispersed without agglomeration. Then add the film-forming aid and textile sizing aid in sequence, and then stir continuously for at least 4 hours to make it uniformly dispersed without agglomeration to obtain the primary no-drying textile sizing composition. S3: The primary no-drying textile sizing composition is filtered through a stainless steel mesh of 300 mesh or higher to obtain the no-drying textile sizing composition.

[0024] The film-forming temperature of the obtained dry-free textile sizing composition is in the range of -20~10℃.

[0025] Application of a no-drying textile sizing composition in the yarn sizing process. Yarns include, but are not limited to, DTY, ATY, nylon, acrylic, cotton, and linen.

[0026] After the yarn is sized with this composition, the drying time is less than 5 seconds under the conditions of temperature 25℃, humidity 50% and wind speed 5m / s; after drying, the breaking strength is greater than 300cN and the breaking elongation is greater than 20%.

[0027] After the yarn is sized and dried by this composition, the desizing rate is greater than 98% when soaked in hot water at 80°C for 20 minutes.

[0028] Compared with traditional textile sizing agents, the sized yarn has the following advantages in addition to being more abrasion-resistant, having higher tensile strength, not pilling, and not easily becoming damp and sticky: 1. After being sized with this textile sizing agent composition, the yarn does not need to go through a high-temperature steam oven; it can be dried quickly by passing it through room temperature air at low speed. 2. After sizing, drying, and weaving, the yarn can be desized by soaking it in hot water above 80°C without the need for alkaline solutions or enzymes, and the desizing rate is high.

[0029] Mechanism of invention for no-drying: The "room temperature fusion" of low-Tg aqueous polyacrylate emulsions and film-forming aids lowers the minimum film-forming temperature (MFFT) of the sizing agent, making it lower than the ambient temperature: once moisture begins to evaporate, the film-forming aid plasticizes the polyacrylate emulsion particles, reducing the interfacial tension and glass transition temperature between particles, and promoting the particles to undergo compaction, deformation, necking, and fusion processes. After fusion occurs, even if the moisture has not completely evaporated, a continuous, low-viscosity, and non-sticky surface layer will be formed. In this process, textile sizing compositions with different minimum film-forming temperatures (MFFT) can be obtained by adjusting the particle size of the aqueous polyacrylate emulsion, the glass transition temperature (Tg) of the aqueous polyacrylate, and the concentration of the film-forming aid.

[0030] In this invention, when the particle size of the aqueous polyacrylate emulsion particles is in the range of 50~200 nm, and the glass transition temperature (Tg) of the polyacrylate in the emulsion is in the range of -15~20°C, the sizing composition of this invention on the yarn is rapidly dried at room temperature with the assistance of film-forming aids. Based on known polymer physics, within a certain range, the smaller the particle size of the emulsion particles, the lower the glass transition temperature (Tg) of the polyacrylate, and the higher the concentration of the film-forming aids, the lower the minimum film-forming temperature (MFFT) of the resulting textile sizing composition. Considering the strength of the formed film, the glass transition temperature (Tg) of the polyacrylate needs to be above -15°C.

[0031] Thixotropic gelation of the hydrophilic phase: At the moment of shear cessation, the hydrogen bond network of polyhydroxy polymers such as starch, polyvinyl alcohol, hydroxyethyl cellulose, guar gum, and xanthan gum is rapidly rebuilt, and the apparent viscosity / yield stress of the slurry composition increases. This "gelation-setting" process allows the coating layer to immediately lose flow without relying on large-scale evaporation of water, thus preventing "stringing / sticking".

[0032] In summary, the multi-hydroxy polymer in this invention serves as the hydrophilic phase, while the hydrophobic phase formed by the aqueous polyacrylate emulsion particles, the multi-hydroxy polymer, and the film-forming aid achieves the mechanism of "non-sticky film formation" of the hydrophobic phase and "non-flowing gelation" of the hydrophilic phase, thus jointly realizing the drying-free effect of textile sizing agents on yarn.

[0033] Mechanism of Easy Desizing Invention: After the yarn is sized and dried using the composition of the present invention, the desizing rate after soaking in hot water at 80°C for 20 minutes is greater than 98%. The mechanism is as follows: Swelling-dissolution of the hydrophilic phase: Polyhydroxy polymers rapidly absorb water and swell in hot water above 80°C. The crystalline microdomains of the polyhydroxy polymers are destroyed by thermal energy, hydrogen bonds are competitively replaced by water, and the network becomes loose and gradually dissolves. Phase structure disintegration: The sizing film on the yarn surface is a polyhydroxy polymer, which is actually a hydrophilic phase, with an interpenetrating / juxtaposed structure of hydrophobic segments in the hydrophobic polyacrylate phase. In hot water, the hydrophilic phase is first swollen and peeled off, causing the hydrophobic phase to lose its continuous support and anchoring points. Under mechanical agitation / water shearing, the hydrophobic phase, due to its inherent low compatibility with the yarn surface, is mechanically peeled off and redispersed in the aqueous phase in the form of small fragments / particles, thereby achieving overall desizing.

[0034] Because the amount of waterborne polyacrylate emulsion added was moderate and it was not cross-linked, the film was redispersed in hot water. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Unless otherwise specified, the raw materials used in the following embodiments are all commercially available conventional raw materials, and the percentages in the present invention are mass percentages.

[0036] The aqueous polyacrylate emulsion of this invention has a particle size in the range of 50-200 nm; the glass transition temperature (Tg) of the polyacrylate in the aqueous polyacrylate emulsion is in the range of -15 to 20°C.

[0037] The method for testing the particle size of aqueous polyacrylate emulsions is as follows: First, the aqueous polyacrylate emulsion is diluted to a suitable ratio. Then, the particle size in the aqueous polyacrylate emulsion is tested using dynamic light scattering (DLS). The autocorrelation function of the scattered light is analyzed using photon correlation spectroscopy (PCS). The diffusion coefficient (D) of the particles is calculated through the fluctuation frequency. Finally, the hydrodynamic diameter, i.e., the particle size, is calculated using the Stokes-Einstein equation. (Formula 1) (1) R h This refers to the hydrodynamic diameter, i.e., the particle size, k. B η is Boltzmann constant, T is absolute temperature, η is viscosity of the dispersion medium, and D is diffusion coefficient.

[0038] Furthermore, the glass transition temperature (Tg) of polyacrylate in aqueous polyacrylate emulsion is tested as follows: The aqueous polyacrylate emulsion is first dried in a vacuum drying oven at 60℃ for 48 hours to obtain a solid or film of polyacrylate, ensuring a water content <0.5% (residual water will generate interfering endothermic peaks in DSC). The dried solid or film of polyacrylate is then peeled off, cut or ground into powder with a particle diameter <1 mm. Differential scanning calorimetry (DSC) is then used to capture the change in heat capacity (ΔCp) during the glass transition of the polymer by measuring the heat flow difference (ΔH) between the sample and the reference material as a function of temperature. The DSC temperature scanning range is -30~70℃, the heating rate is 5~10℃ / min, the nitrogen atmosphere (purity ≥99.99%) flow rate is 20~50 mL / min, and the cooling rate from liquid nitrogen or air cooling to the initial temperature is ≥10℃ / min.

[0039] The present invention will be further described below with reference to examples / comparative examples.

[0040] Example 1 A no-drying textile sizing composition, prepared in 1000g batches, with the following mass percentages of each component: polyvinyl alcohol 1788: 0.4%, modified corn starch: 0.6%, aqueous polyacrylate emulsion (Hanwha aqueous acrylic emulsion RX-20): 2.5%, alcohol ester dodecyl: 0.2%, fatty alcohol polyoxyethylene ether JFC-2: 0.1%, aqueous silicone oil: 0.1%, MOA3PK: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 95.85%. The particle size of the particles in the aqueous polyacrylate emulsion is 150 nm, and the glass transition temperature (Tg) is 12℃.

[0041] Water was added to a 2000 mL round-bottom flask, stirred with a magnetic stirrer, polyvinyl alcohol and modified corn starch were added, and the mixture was heated to 92°C. The mixture was then stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and an aqueous polyacrylate emulsion (Hanwha aqueous acrylic emulsion RX-20) was added. The mixture was stirred continuously for 2.5 hours while maintaining the temperature at 38°C. Then, alcohol ester dodecyl, fatty alcohol polyoxyethylene ether JFC-2, aqueous silicone oil, MOA3PK, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added sequentially. The mixture was then stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 300-mesh stainless steel mesh to obtain the no-drying textile sizing composition.

[0042] The obtained no-drying textile sizing composition has a minimum film-forming temperature (MFFT) of 5°C, a yarn drying time of 2.0 seconds after sizing, a yarn breaking strength of 320.25 cN after sizing, a breaking elongation of 24.57%, and a yarn desizing rate of 99.8% after sizing.

[0043] Example 2 A no-drying textile sizing composition, prepared in 1000g batches, with the following mass percentages of each component: polyvinyl alcohol 1788: 0.4%, modified corn starch: 0.6%, aqueous polyacrylate emulsion (Jining Huakai aqueous acrylic emulsion S-725): 2.5%, alcohol ester dodecyl: 0.2%, fatty alcohol polyoxyethylene ether JFC-2: 0.1%, aqueous silicone oil: 0.1%, MOA3PK: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 95.85%. The particle size of the aqueous polyacrylate emulsion is 60 nm, and the glass transition temperature (Tg) is 0℃.

[0044] Water was added to a 2000 mL round-bottom flask, stirred with a magnetic stirrer, and polyvinyl alcohol and modified corn starch were added. The mixture was heated to 92°C and stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and an aqueous polyacrylate emulsion (Jining Huakai aqueous acrylic emulsion S-725) was added. The mixture was stirred continuously for 2.5 hours while maintaining the temperature at 38°C. Then, alcohol ester dodecyl, fatty alcohol polyoxyethylene ether JFC-2, aqueous silicone oil, MOA3PK, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added in sequence. The mixture was stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 300-mesh stainless steel mesh to obtain the no-drying textile sizing composition.

[0045] The obtained no-drying textile sizing composition has a minimum film-forming temperature (MFFT) of -10℃, a yarn drying time of 2.0 seconds after sizing, a yarn breaking strength of 314.33cN after sizing, an elongation at break of 23.26%, and a yarn desizing rate of 99.5% after sizing.

[0046] Example 3 A no-drying textile sizing composition, prepared in 1000g batches, comprises the following components by mass percentage: aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion): 2.5%, polyvinyl alcohol 1788: 0.4%, modified corn starch: 0.6%, alcohol ester dodecyl: 0.2%, fatty alcohol polyoxyethylene ether JFC-2: 0.1%, aqueous silicone oil: 0.1%, MOA3PK: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 95.85%. The particle size of the aqueous polyacrylate emulsion is 100 nm, and the glass transition temperature (Tg) is 3℃.

[0047] Water was added to a 2000 mL round-bottom flask, stirred with a magnetic stirrer, and polyvinyl alcohol and modified corn starch were added. The mixture was heated to 92°C and stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and an aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion) was added. The mixture was stirred continuously for 2.5 hours while maintaining the temperature at 38°C. Then, alcohol ester dodecyl, fatty alcohol polyoxyethylene ether JFC-2, aqueous silicone oil, MOA3PK, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added in sequence. The mixture was stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 300-mesh stainless steel mesh to obtain the no-drying textile sizing composition.

[0048] The obtained no-drying textile sizing composition has a minimum film-forming temperature (MFFT) of -5℃, a yarn drying time of 1.5 seconds after sizing, a yarn breaking strength of 312.65cN, a breaking elongation of 22.43%, and a yarn desizing rate of 99.6%.

[0049] Example 4 A no-drying textile sizing composition, prepared in 1000g batches, comprises the following components by mass percentage: aqueous polyacrylate emulsion (Wanhua Tekspro 5127 aqueous acrylate emulsion): 2.5%, polyvinyl alcohol 1788: 0.4%, modified corn starch: 0.6%, 12-ol ester: 0.2%, fatty alcohol polyoxyethylene ether JFC-2: 0.1%, aqueous silicone oil: 0.1%, MOA3PK: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 95.85%. The particle size of the aqueous polyacrylate emulsion is 80 nm, and the glass transition temperature (Tg) is -12℃.

[0050] Water was added to a 2000 mL round-bottom flask, stirred with a magnetic stirrer, and polyvinyl alcohol and modified corn starch were added. The mixture was heated to 92°C and stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and an aqueous polyacrylate emulsion (Jining Huakai aqueous acrylic emulsion S-725) was added. The mixture was stirred continuously for 2.5 hours while maintaining the temperature at 38°C. Then, alcohol ester dodecyl, fatty alcohol polyoxyethylene ether JFC-2, aqueous silicone oil, MOA3PK, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added in sequence. The mixture was stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 300-mesh stainless steel mesh to obtain the no-drying textile sizing composition.

[0051] The obtained dry-free textile sizing composition has a minimum film-forming temperature (MFFT) of -20℃, a yarn drying time of 3.0 seconds after sizing, a yarn breaking strength of 309.46cN, a breaking elongation of 23.38%, and a yarn desizing rate of 99.8%.

[0052] Example 5 A no-drying textile sizing composition, prepared in 1000g batches, comprises the following components by mass percentage: aqueous polyacrylate emulsion (Yoshida aqueous acrylic emulsion E0511 X): 2.5%, polyvinyl alcohol 1788: 0.4%, modified corn starch: 0.6%, 12-ol ester: 0.2%, fatty alcohol polyoxyethylene ether JFC-2: 0.1%, aqueous silicone oil: 0.1%, MOA3PK: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 95.85%. The particle size of the aqueous polyacrylate emulsion is 90 nm, and the glass transition temperature (Tg) is -10℃.

[0053] Water was added to a 2000 mL round-bottom flask, stirred with a magnetic stirrer, and polyvinyl alcohol and modified corn starch were added. The mixture was heated to 92°C and stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and an aqueous polyacrylate emulsion (Yoshida aqueous acrylic emulsion E0511 X) was added. The mixture was stirred continuously for 2.5 hours while maintaining the temperature at 38°C. Then, alcohol ester dodecyl, fatty alcohol polyoxyethylene ether JFC-2, aqueous silicone oil, MOA3PK, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added in sequence. The mixture was stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 300-mesh stainless steel mesh to obtain the no-drying textile sizing composition.

[0054] The obtained no-drying textile sizing composition has a minimum film-forming temperature (MFFT) of -15℃, a yarn drying time of 2.5 seconds after sizing, a yarn breaking strength of 315.22cN after sizing, a breaking elongation of 23.68%, and a yarn desizing rate of 99.2% after sizing.

[0055] Example 6 A no-drying textile sizing composition, prepared in 1000g batches, comprises the following components by mass percentage: aqueous polyacrylate emulsion (Yoshida aqueous acrylic emulsion E0511 X): 2.5%, polyvinyl alcohol 1788: 0.4%, modified potato starch: 0.6%, diethylene glycol monomethyl ether: 0.2%, fatty alcohol polyoxyethylene ether JFC-2: 0.1%, aqueous silicone oil: 0.1%, MOA3PK: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 95.85%. The particle size of the aqueous polyacrylate emulsion is 90 nm, and the glass transition temperature (Tg) is -10℃.

[0056] Water was added to a 2000 mL round-bottom flask, stirred with a magnetic stirrer, polyvinyl alcohol and modified potato starch were added, and the mixture was heated to 92°C. The mixture was then stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and an aqueous polyacrylate emulsion (Yoshida aqueous acrylic emulsion E0511 X) was added. The mixture was stirred continuously for 2.5 hours while maintaining the temperature at 38°C. Then, diethylene glycol monomethyl ether, fatty alcohol polyoxyethylene ether JFC-2, aqueous silicone oil, MOA3PK, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added sequentially. The mixture was then stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 300-mesh stainless steel mesh to obtain the no-drying textile sizing composition.

[0057] The obtained dry-free textile sizing composition has a minimum film-forming temperature (MFFT) of -15℃, a yarn drying time of 2.5 seconds after sizing, a yarn breaking strength of 306.32cN, a breaking elongation of 24.53%, and a yarn desizing rate of 99.4%.

[0058] Example 7 A no-drying textile sizing composition, prepared in 1000g batches, comprises the following components by mass percentage: aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion): 4%, polyvinyl alcohol 1788: 0.4%, modified corn starch: 1%, alcohol ester dodecyl: 0.2%, fatty alcohol polyoxyethylene ether JFC-2: 0.1%, aqueous silicone oil: 0.1%, MOA3PK: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 93.95%. The particle size of the aqueous polyacrylate emulsion is 100 nm, and the glass transition temperature (Tg) is 3℃.

[0059] Water was added to a 2000 mL round-bottom flask, stirred with a magnetic stirrer, and polyvinyl alcohol and modified corn starch were added. The mixture was heated to 92°C and stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and an aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion) was added. The mixture was stirred continuously for 2.5 hours while maintaining the temperature at 38°C. Then, alcohol ester dodecyl, fatty alcohol polyoxyethylene ether JFC-2, aqueous silicone oil, MOA3PK, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added in sequence. The mixture was stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 300-mesh stainless steel mesh to obtain the no-drying textile sizing composition.

[0060] The obtained no-drying textile sizing composition has a minimum film-forming temperature (MFFT) of -8℃, a yarn drying time of 3.0 seconds after sizing, a yarn breaking strength of 335.02cN after sizing, a breaking elongation of 23.62%, and a yarn desizing rate of 99.3%.

[0061] Example 8 A no-drying textile sizing composition, prepared in 1000g batches, comprises the following components by mass percentage: aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion): 2.5%, hydroxyethyl cellulose: 0.8%, modified corn starch: 0.6%, alcohol ester dodecyl: 0.2%, fatty alcohol polyoxyethylene ether JFC-2: 0.1%, aqueous silicone oil: 0.1%, MOA3PK: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 95.45%. The particle size of the aqueous polyacrylate emulsion is 100 nm, and the glass transition temperature (Tg) is 3℃.

[0062] Water was added to a 2000 mL round-bottom flask, stirred with a magnetic stirrer, and hydroxyethyl cellulose and modified corn starch were added. The mixture was heated to 92°C and stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and an aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion) was added. The mixture was stirred continuously for 2.5 hours while maintaining the temperature at 38°C. Then, alcohol ester dodecyl, fatty alcohol polyoxyethylene ether JFC-2, aqueous silicone oil, MOA3PK, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added in sequence, and the mixture was stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 300-mesh stainless steel mesh to obtain the no-drying textile sizing composition.

[0063] The obtained no-drying textile sizing composition has a minimum film-forming temperature (MFFT) of -9°C, a yarn drying time of 3.5 seconds after sizing, a yarn breaking strength of 315.98 cN after sizing, a breaking elongation of 24.55%, and a yarn desizing rate of 99.8% after sizing.

[0064] Example 9 A no-drying textile sizing composition, prepared in 1000g batches, comprises the following components by mass percentage: aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion): 2.5%, guar gum: 0.8%, modified corn starch: 0.6%, alcohol ester dodecyl: 0.2%, fatty alcohol polyoxyethylene ether JFC-2: 0.1%, aqueous silicone oil: 0.1%, MOA3PK: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 95.45%. The particle size of the aqueous polyacrylate emulsion is 100 nm, and the glass transition temperature (Tg) is 3℃.

[0065] Water was added to a 2000 mL round-bottom flask, stirred with a magnetic stirrer, and guar gum and modified corn starch were added. The mixture was heated to 92°C and stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and an aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion) was added. The mixture was stirred continuously for 2.5 hours while maintaining the temperature at 38°C. Then, alcohol ester dodecyl, fatty alcohol polyoxyethylene ether JFC-2, aqueous silicone oil, MOA3PK, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added in sequence, and the mixture was stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 300-mesh stainless steel mesh to obtain the no-drying textile sizing composition.

[0066] The obtained no-drying textile sizing composition has a minimum film-forming temperature (MFFT) of -10℃, a yarn drying time of 1.5 seconds after sizing, a yarn breaking strength of 324.56cN, a breaking elongation of 24.63%, and a yarn desizing rate of 99.4%.

[0067] Example 10 A no-drying textile sizing composition, prepared in 1000g batches, comprises the following components by mass percentage: aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion): 2.5%, xanthan gum: 0.5%, modified corn starch: 0.6%, alcohol ester dodecyl: 0.2%, fatty alcohol polyoxyethylene ether JFC-2: 0.1%, aqueous silicone oil: 0.1%, MOA3PK: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 95.75%. The particle size of the aqueous polyacrylate emulsion is 100 nm, and the glass transition temperature (Tg) is 3℃.

[0068] Water was added to a 2000 mL round-bottom flask, stirred with a magnetic stirrer, and xanthan gum and modified corn starch were added. The mixture was heated to 92°C and stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and an aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion) was added. The mixture was stirred continuously for 2.5 hours while maintaining the temperature at 38°C. Then, alcohol ester dodecyl, fatty alcohol polyoxyethylene ether JFC-2, aqueous silicone oil, MOA3PK, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added in sequence, and the mixture was stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 300-mesh stainless steel mesh to obtain the no-drying textile sizing composition.

[0069] The obtained no-drying textile sizing composition has a minimum film-forming temperature (MFFT) of -12℃, a yarn drying time of 2.0 seconds after sizing, a yarn breaking strength of 329.15cN after sizing, a breaking elongation of 21.37%, and a yarn desizing rate of 99.5% after sizing.

[0070] Example 11 A no-drying textile sizing composition, prepared in 1000g batches, comprises the following components by mass percentage: aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion): 2.5%, xanthan gum: 0.5%, modified corn starch: 0.6%, alcohol ester dodecyl: 0.2%, AEO-9: 0.1%, aqueous silicone oil: 0.1%, MOA3PK: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 95.75%. The particle size of the aqueous polyacrylate emulsion is 100 nm, and the glass transition temperature (Tg) is 3℃.

[0071] Water was added to a 2000 mL round-bottom flask, stirred with a magnetic stirrer, and xanthan gum and modified corn starch were added. The mixture was heated to 92°C and stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and an aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion) was added. The mixture was stirred continuously for 2.5 hours while maintaining the temperature at 38°C. Then, alcohol ester dodecyl, AEO-9, aqueous silicone oil, MOA3PK, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added in sequence. The mixture was stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 300-mesh stainless steel mesh to obtain the no-drying textile sizing composition.

[0072] The obtained no-drying textile sizing composition has a minimum film-forming temperature (MFFT) of -12℃, a yarn drying time of 3.5 seconds after sizing, a yarn breaking strength of 317.55cN after sizing, a breaking elongation of 21.86%, and a yarn desizing rate of 99.5% after sizing.

[0073] Example 12 A no-drying textile sizing composition, prepared in 1000g batches, comprises the following components by mass percentage: aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion): 2.5%, xanthan gum: 0.5%, modified cassava starch: 0.6%, alcohol ester dodecyl: 0.2%, AEO-9: 0.1%, aqueous silicone oil: 0.1%, MOA3PK: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 95.75%. The particle size of the aqueous polyacrylate emulsion is 100 nm, and the glass transition temperature (Tg) is 3℃.

[0074] Water was added to a 2000 mL round-bottom flask, stirred with a magnetic stirrer, and xanthan gum and modified tapioca starch were added. The mixture was heated to 92°C and stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and an aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion) was added. The mixture was stirred continuously for 2.5 hours while maintaining the temperature at 38°C. Then, alcohol ester dodecyl, AEO-9, aqueous silicone oil, MOA3PK, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added in sequence. The mixture was stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 300-mesh stainless steel mesh to obtain the no-drying textile sizing composition.

[0075] The obtained no-drying textile sizing composition has a minimum film-forming temperature (MFFT) of -7°C, a yarn drying time of 2.5 seconds after sizing, a yarn breaking strength of 316.59 cN, a breaking elongation of 23.79%, and a yarn desizing rate of 99.6%.

[0076] Example 13 A no-drying textile sizing composition, prepared in 1000g batches, comprises the following components by mass percentage: aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion): 2.5%, xanthan gum: 0.5%, modified sweet potato starch: 0.6%, alcohol ester dodecyl: 0.2%, AEO-9: 0.1%, aqueous silicone oil: 0.1%, MOA3PK: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 95.75%. The particle size of the aqueous polyacrylate emulsion is 100 nm, and the glass transition temperature (Tg) is 3℃.

[0077] Water was added to a 2000 mL round-bottom flask, stirred with a magnetic stirrer, and xanthan gum and modified sweet potato starch were added. The mixture was heated to 92°C and stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and an aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion) was added. The mixture was stirred continuously for 2.5 hours while maintaining the temperature at 38°C. Then, alcohol ester dodecyl, AEO-9, aqueous silicone oil, MOA3PK, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added in sequence, and the mixture was stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 300-mesh stainless steel mesh to obtain the no-drying textile sizing composition.

[0078] The obtained no-drying textile sizing composition has a minimum film-forming temperature (MFFT) of -8°C, a yarn drying time of 1.5 seconds after sizing, a yarn breaking strength of 314.69 cN, a breaking elongation of 24.56%, and a yarn desizing rate of 99.7%.

[0079] Example 14 A no-drying textile sizing composition, prepared in 1000g batches, comprises the following components by mass percentage: aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion): 2.5%, xanthan gum: 0.5%, modified wheat starch: 0.6%, alcohol ester dodecyl: 0.2%, AEO-9: 0.1%, aqueous silicone oil: 0.1%, MOA3PK: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 95.75%. The particle size of the aqueous polyacrylate emulsion is 100 nm, and the glass transition temperature (Tg) is 3℃.

[0080] Water was added to a 2000 mL round-bottom flask, stirred with a magnetic stirrer, and xanthan gum and modified wheat starch were added. The mixture was heated to 92°C and stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and an aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion) was added. The mixture was stirred continuously for 2.5 hours while maintaining the temperature at 38°C. Then, alcohol ester dodecyl, AEO-9, aqueous silicone oil, MOA3PK, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added in sequence, and the mixture was stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 300-mesh stainless steel mesh to obtain the no-drying textile sizing composition.

[0081] The obtained no-drying textile sizing composition has a minimum film-forming temperature (MFFT) of -6℃, a yarn drying time of 2.0 seconds after sizing, a yarn breaking strength of 316.25cN, a breaking elongation of 23.16%, and a yarn desizing rate of 99.6%.

[0082] Example 15 A no-drying textile sizing composition, prepared in 1000g batches, comprises the following components by mass percentage: aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion): 2.5%, polyvinyl alcohol 1788: 0.5%, modified corn starch: 0.6%, 12-ethylhexyl alcohol ester: 0.2%, AEO-9: 0.1%, aqueous silicone oil: 0.1%, sorbitan monostearate polyoxyethylene ether: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 95.75%. The particle size of the aqueous polyacrylate emulsion is 100 nm, and the glass transition temperature (Tg) is 3℃.

[0083] Water was added to a 2000 mL round-bottom flask, stirred with a magnetic stirrer, and polyvinyl alcohol and modified corn starch were added. The mixture was heated to 92°C and stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and an aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion) was added. The mixture was stirred continuously for 2.5 hours while maintaining the temperature at 38°C. Then, alcohol ester dodecyl, AEO-9, aqueous silicone oil, sorbitan monostearate polyoxyethylene ether, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added in sequence. The mixture was stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 300-mesh stainless steel mesh to obtain the no-drying textile sizing composition.

[0084] The obtained no-drying textile sizing composition has a minimum film-forming temperature (MFFT) of -6℃, a yarn drying time of 2.5 seconds after sizing, a yarn breaking strength of 324.33cN, a breaking elongation of 24.18%, and a yarn desizing rate of 99.5%.

[0085] Comparative Example 1 A textile sizing composition was prepared for 1000g, with the following mass percentages of each component: polyvinyl alcohol 1788: 2.5%, modified corn starch: 5%, dodecyl alcohol ester: 0.2%, AEO-9: 0.1%, water-based silicone oil: 0.1%, sorbitan monostearate polyoxyethylene ether: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 91.85%. Water was added to a 2000 mL round-bottom flask, stirred with a magnetic stirrer, and polyvinyl alcohol and modified corn starch were added. The mixture was heated to 90°C and stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and then alcohol ester dodecyl, AEO-9, aqueous silicone oil, sorbitan monostearate polyoxyethylene ether, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added in sequence. The mixture was then stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 350-mesh stainless steel mesh to obtain the textile sizing composition.

[0086] The yarn drying time after sizing with the textile sizing composition is 9.5 seconds, the breaking strength of the sized yarn is 200.6 cN, the breaking elongation is 12.6%, and the desizing rate of the sized yarn is 99.8%.

[0087] Comparative Example 2 A textile sizing composition, prepared in 1000g batches, comprises the following components by mass percentage: aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion): 2.5%, polyvinyl alcohol 1788: 0.5%, modified corn starch: 0.6%, AEO-9: 0.1%, aqueous silicone oil: 0.1%, sorbitan monostearate polyoxyethylene ether: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 95.95%. The particle size of the aqueous polyacrylate emulsion is 100nm, and the glass transition temperature (Tg) is 3℃.

[0088] Water was added to a 2000 mL round-bottom flask, stirred with a magnetic stirrer, and polyvinyl alcohol and modified corn starch were added. The mixture was heated to 92°C and stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and an aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion) was added. The mixture was stirred continuously for 2.5 hours while maintaining the temperature at 38°C. Then, AEO-9, aqueous silicone oil, sorbitan monostearate polyoxyethylene ether, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added in sequence, and the mixture was stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 300-mesh stainless steel mesh to obtain the no-drying textile sizing composition.

[0089] The obtained no-drying textile sizing composition has a minimum film-forming temperature (MFFT) of 2°C, a yarn drying time of 12.0 seconds after sizing, a yarn breaking strength of 322.6 cN after sizing, a breaking elongation of 23.56%, and a yarn desizing rate of 99.5% after sizing.

[0090] Comparative Example 3 A textile sizing composition, prepared in 1000g batches, comprises the following components by mass percentage: aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion): 2.5%, modified corn starch: 1.6%, alcohol ester dodecyl: 0.2%, AEO-9: 0.1%, aqueous silicone oil: 0.1%, sorbitan monostearate polyoxyethylene ether: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 95.25%. The particle size of the aqueous polyacrylate emulsion is 100nm, and the glass transition temperature (Tg) is 3℃.

[0091] Water was added to a 2000 mL round-bottom flask, stirred with a magnetic stirrer, and modified corn starch was added. The mixture was heated to 92°C and stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and an aqueous polyacrylate emulsion (Wanhua Tekspro 5117 aqueous acrylate emulsion) was added. The mixture was stirred continuously for 2.5 hours while maintaining the temperature at 38°C. Then, alcohol ester dodecyl, AEO-9, aqueous silicone oil, sorbitan monostearate polyoxyethylene ether, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added in sequence. The mixture was stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 300-mesh stainless steel mesh to obtain the no-drying textile sizing composition.

[0092] The obtained no-drying textile sizing composition has a minimum film-forming temperature (MFFT) of -4℃, a yarn drying time of 2.5 seconds after sizing, a yarn breaking strength of 342.6cN, a breaking elongation of 25.62%, and a yarn desizing rate of 80.2%.

[0093] Comparative Example 4 A textile sizing composition, prepared in 1000g form, with the following mass percentages of each component: polyvinyl alcohol 1788: 3%, modified corn starch: 4%, AEO-9: 0.1%, aqueous silicone oil: 0.1%, sorbitan monostearate polyoxyethylene ether: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 92.55%.

[0094] Water was added to a 2000 mL round-bottom flask, stirred with a magnetic stirrer, and polyvinyl alcohol and modified corn starch were added. The mixture was heated to 92°C and stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and then AEO-9, aqueous silicone oil, sorbitan monostearate polyoxyethylene ether, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added in sequence. The mixture was then stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 300-mesh stainless steel mesh to obtain the no-drying textile sizing composition.

[0095] The drying time of the sized yarn is 10.5 seconds, the breaking strength of the sized yarn is 286.9 cN, the breaking elongation is 25.8%, and the desizing rate of the sized yarn is 98.5%.

[0096] Comparative Example 5 A textile sizing composition, prepared in 1000g batches, with the following mass percentages of each component: polyvinyl alcohol 1799: 3%, modified potato starch: 4%, AEO-9: 0.1%, aqueous silicone oil: 0.1%, sorbitan monostearate polyoxyethylene ether: 0.1%, 1,2-benzisothiazolin-3-one: 0.1%, Dow Corning defoamer AFE-1410: 0.05%, and water: 92.55%.

[0097] Water was added to a 2000 mL round-bottom flask, and the mixture was stirred with a magnetic stirrer. Polyvinyl alcohol and modified potato starch were added, and the mixture was heated to 92°C. The mixture was then stirred continuously for 4 hours to obtain an aqueous solution of a polyhydroxy polymer. The aqueous solution of the polyhydroxy polymer was cooled to 38°C, and then AEO-9, aqueous silicone oil, sorbitan monostearate polyoxyethylene ether, 1,2-benzisothiazolin-3-one, and Dow Corning defoamer AFE-1410 were added in sequence. The mixture was then stirred continuously for 4 hours to obtain a primary no-drying textile sizing composition. The primary no-drying textile sizing composition was filtered through a 300-mesh stainless steel mesh to obtain the no-drying textile sizing composition.

[0098] The drying time of the sized yarn is 15.6 seconds, the breaking strength of the sized yarn is 201.6 cN, the breaking elongation is 25.8%, and the desizing rate of the sized yarn is 97.6%.

[0099] The detection method in this invention: 1. Minimum Film-Forming Temperature (MFFT) of Textile Sizing Compositions The minimum film-forming temperature (MFFT) of textile sizing compositions was determined according to ASTM D2354. Specifically, the MFFT of textile sizing compositions was determined using a Rhopoint MFFT Bar II apparatus: a small amount of the textile sizing composition was taken and applied to the apparatus plate using a 1-inch cubic applicator. This applicator, through a 75-micron gap, was able to apply a series of strips, which were then dried on the apparatus plate in a covered environment under a standardized airflow. Due to the temperature gradient on the apparatus plate, cracks began to appear where the test sample could no longer form a transparent film. These cracks could take various shapes (from single short cracks to long cracks, to cracks along the entire width of the film, or even complete peeling).

[0100] 2. Breaking strength and elongation at break of yarn after sizing The breaking strength and elongation at break of sized yarns were tested according to GB / T 3916-2013 "Textiles / Roll Yarn / Single Yarn".

[0101] Fracture strength: The maximum force value (cN) recorded by the instrument is directly read, and the arithmetic mean of all valid samples is taken.

[0102] Elongation at break (%) is calculated using Formula 2: (2) Where L0 is the spacing length and L1 is the length at break. The test environment requires a temperature of (20±2)℃ and a relative humidity of (65±4)%. A certain length of yarn is randomly selected from the yarn package to prepare a sample, generally with a clamping spacing length L0 of 500mm. During the tensile test, the tensile speed is set to (500±50)mm / min. When the yarn breaks, the length L1 is recorded, and the elongation at break is calculated using the same formula as above.

[0103] 3. Yarn desizing rate after sizing Desizing rate is a key indicator for measuring the effectiveness of sizing removal from yarn. Calculation formula 3: (3) Wherein, W0 represents the sizing content of the yarn before desizing (g), and W1 represents the residual sizing content after desizing (g). The desizing conditions are: immersing the sized yarn in hot water at 80℃ for 20 minutes, and then removing and drying it. The core of the test is to evaluate the efficiency of the desizing process by quantitatively analyzing the difference in sizing content before and after desizing.

Claims

1. A no-drying textile sizing composition, characterized in that... It includes an aqueous polyacrylate emulsion, a polyhydroxy polymer, a film-forming aid, a textile sizing agent, and water; the particle size of the aqueous polyacrylate emulsion is 50-200 nm; the glass transition temperature (Tg) of the polyacrylate in the aqueous polyacrylate emulsion is -15 to 20 °C.

2. The no-drying textile sizing composition according to claim 1, characterized in that... By mass percentage, it includes the following components: 2%~12% aqueous polyacrylate emulsion, 0.5%-3% polyhydroxy polymer, 0.1%-0.5% film-forming aid, 0.3%-2% textile sizing aid, and the remainder is water.

3. A no-drying textile sizing composition according to claim 1 or 2, characterized in that... The polyhydroxy polymer is one or more of polyvinyl alcohol, modified starch, sodium carboxymethyl cellulose, hydroxyethyl cellulose, guar gum, and xanthan gum.

4. A no-drying textile sizing composition according to claim 1 or 2, characterized in that... The textile sizing auxiliaries include antistatic agents, wetting agents, preservatives, lubricants, and defoamers.

5. The no-drying textile sizing composition according to claim 1, characterized in that... By mass percentage, its composition is as follows: 2%~12% aqueous polyacrylate emulsion, 0.3%~1.5% modified starch, 0.05%~0.2% wetting agent, 0.05%~0.3% lubricant, 0.1%~0.5% antistatic agent, 0.05%~0.2% preservative, 0.1%~0.5% film-forming aid, 0.02%~0.2% defoamer, and the remainder is water.

6. The no-drying textile sizing composition according to claim 1, characterized in that... By mass percentage, its components are as follows: 2%~12% aqueous polyacrylate emulsion, 0.2%~1% polyvinyl alcohol, 0.3%~1.5% modified starch, 0.05%~0.2% wetting agent, 0.05%~0.3% lubricant, 0.1%~0.5% antistatic agent, 0.05%~0.2% preservative, 0.1%~0.5% film-forming aid, 0.02%~0.2% defoamer, and the remainder is water.

7. The no-drying textile sizing composition according to claim 1, characterized in that... By mass percentage, its components are as follows: 2%~12% aqueous polyacrylate emulsion, 0.5%~1.5% sodium carboxymethyl cellulose, 0.3%~1.5% modified starch, 0.05%~0.2% wetting agent, 0.05%~0.3% lubricant, 0.1%~0.5% antistatic agent, 0.05%~0.2% preservative, 0.1%~0.5% film-forming aid, 0.02%~0.2% defoamer, and the remainder is water.

8. The no-drying textile sizing composition according to claim 1, characterized in that... By mass percentage, its components are as follows: 2%~12% aqueous polyacrylate emulsion, 0.5%~2% hydroxyethyl cellulose, 0.3%~1.5% modified starch, 0.05%~0.2% wetting agent, 0.05%~0.3% lubricant, 0.1%~0.5% antistatic agent, 0.05%~0.2% preservative, 0.1%~0.5% film-forming aid, 0.02%~0.2% defoamer, and the remainder is water.

9. The no-drying textile sizing composition according to claim 1, characterized in that... By mass percentage, its components are as follows: 2%~12% aqueous polyacrylate emulsion, 0.5%~2% guar gum, 0.3%~1.5% modified starch, 0.05%~0.2% wetting agent, 0.05%~0.3% lubricant, 0.1%~0.5% antistatic agent, 0.05%~0.2% preservative, 0.1%~0.5% film-forming aid, 0.02%~0.2% defoamer, and the remainder is water.

10. The no-drying textile sizing composition according to claim 1, characterized in that... By mass percentage, its components are as follows: 2%~12% aqueous polyacrylate emulsion, 0.5%~1.5% xanthan gum, 0.3%~1.5% modified starch, 0.05%~0.2% wetting agent, 0.05%~0.3% lubricant, 0.1%~0.5% antistatic agent, 0.05%~0.2% preservative, 0.1%~0.5% film-forming aid, 0.02%~0.2% defoamer, and the remainder is water.

11. A no-drying textile sizing composition according to claim 3 or 5, characterized in that... The polyvinyl alcohol has a degree of alcoholysis of 80% to 89% and a weight-average molecular weight of 10,000 to 100,000.

12. A no-drying textile sizing composition according to claim 3 or 5 to 10, characterized in that... The modified starch is one or more of the following: corn modified starch, potato modified starch, cassava modified starch, sweet potato modified starch, and wheat modified starch.

13. A no-drying textile sizing composition according to claims 4 to 10, characterized in that, The antistatic agent is one or more of the following: fatty alcohol polyoxyethylene ether, nonylphenol polyoxyethylene ether, sorbitan monostearate polyoxyethylene ether, sorbitan monolaurate polyoxyethylene ether, sodium lauroyl sulfonate, sodium alkyl sulfosuccinate, sodium lauryl sulfate, sodium lauryl ether sulfate, potassium salt of fatty alcohol phosphate, sodium salt of alkyl phosphate diester, sodium alkyl thiosuccinate, and MOA3PK.

14. A no-drying textile sizing composition according to claims 4 to 10, characterized in that, The wetting agent is one or more of the following: fatty alcohol polyoxyethylene ether AEO-3, fatty alcohol polyoxyethylene ether AEO-7, fatty alcohol polyoxyethylene ether AEO-9, fatty alcohol polyoxyethylene ether JFC-1, fatty alcohol polyoxyethylene ether JFC-2, sorbitan ester and its polyoxyethylene derivative Tween 20, sorbitan ester and its polyoxyethylene derivative Tween 60, and sorbitan ester and its polyoxyethylene derivative Tween 80.

15. A no-drying textile sizing composition according to claims 4 to 10, characterized in that, The preservative is 1,2-benzisothiazolin-3-one.

16. A no-drying textile sizing composition according to claims 4 to 10, characterized in that, The lubricant is a polyether-modified waterborne silicone oil.

17. A no-drying textile sizing composition according to claim 1, 2, or 5 to 10, characterized in that... The film-forming aid is one or more of the following: ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, 2-methyl-2,4-pentanediol, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, propylene glycol tert-butyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, tripropylene glycol n-butyl ether, propylene glycol methyl ether acetate, dipropylene glycol methyl ether acetate, dipropylene glycol dimethyl ether, dodecyl alcohol ester, ethylene glycol phenyl ether, and propylene glycol phenyl ether.

18. A method for preparing a dry-free textile sizing composition according to any one of claims 1-17, characterized in that... The preparation method is as follows: S1: Add the polyhydroxy polymer to water under stirring, heat to above 90°C, and then stir continuously for at least 4 hours to obtain an aqueous solution of the polyhydroxy polymer. S2: Cool the aqueous solution of the polyhydroxy polymer obtained in S1. When the temperature of the aqueous solution is below 40°C, add the aqueous polyacrylate emulsion and stir continuously to make it uniformly dispersed without agglomeration. Then add the film-forming aid and textile sizing aid in sequence, and stir continuously to make it uniformly dispersed without agglomeration to obtain the primary dry-free textile sizing composition. S3: The primary no-drying textile sizing composition is filtered through a stainless steel mesh of 300 mesh or higher to obtain the no-drying textile sizing composition.

19. A no-drying textile sizing composition according to any one of claims 1-17 or a preparation method according to claim 18, characterized in that... The film-forming temperature of the obtained dry-free textile sizing composition is MFFT-20~10℃.

20. The application of a dry-free textile sizing composition according to any one of claims 1-17 or a dry-free textile sizing composition obtained by the preparation method according to claim 18 in the yarn sizing process.

21. The application according to claim 19, characterized in that... The yarns mentioned include, but are not limited to, DTY, ATY, nylon, acrylic, cotton yarn, and linen.

22. The application according to claim 20, characterized in that... After the yarn is sized with this composition, the drying time is less than 5 seconds under the conditions of temperature 25℃, humidity 50% and wind speed 5m / s; after drying, the breaking strength is greater than 300cN and the breaking elongation is greater than 20%.

23. The application according to claim 20, characterized in that... After the yarn is sized and dried by this composition, the desizing rate is greater than 98% when soaked in hot water at 80°C for 20 minutes.