Strong sun-proof, anti-transparent, anti-wrinkle, moisture-absorbing and quick-dry cotton-feeling shirt fabric and preparation process thereof

Abstract

The invention discloses a highly sunscreen, anti-transparent, anti-wrinkle, moisture-absorbing and quick-dry cotton-feeling shirt fabric and a preparation process thereof, and relates to the technical field of polyester fabrics. The highly sun-proof, anti-transparent, anti-wrinkle, moisture-absorbing and quick-dry cotton-feeling shirt fabric is obtained by interweaving multifunctional polyester yarns serving as warps and wefts; the multifunctional polyester yarn is obtained by melting, spinning and compounding modified PET master batch and modified PBT master batch in parallel; the modified PET master batch is prepared from the following raw material components in percentage by mass: 4 to 8 weight percent of reinforced modified material, 2 to 4 weight percent of propyl polyethylene glycol terminated polydimethylsiloxane and the balance of PET; the modified PBT master batch is prepared from the following raw material components in percentage by mass: 4 to 8 weight percent of reinforced modified material, 2 to 4 weight percent of propyl polyethylene glycol terminated polydimethylsiloxane and the balance of PBT. The highly sunscreen, anti-transparent, anti-wrinkle, moisture-absorbing and quick-dry cotton-feeling shirt fabric with excellent comprehensive performance is obtained through comprehensive preparation.

Description

Technical Field

[0001] This invention relates to the field of polyester fabric technology, specifically to a cotton-feel shirt fabric with strong sun protection, breathability, wrinkle resistance, moisture absorption, and quick-drying properties, and its preparation process. Background Technology

[0002] As a clothing item worn frequently in daily life, shirts are traditionally mostly made of pure cotton fibers. However, pure cotton shirts have inherent defects: poor wrinkle resistance, they are prone to wrinkles after washing and require frequent ironing, and their wet strength decreases significantly, making them prone to deformation after long-term wear. At the same time, pure cotton fabric has poor breathability, especially light-colored and lightweight shirts, which makes it difficult to guarantee the privacy of the wearer and limits their application in formal occasions.

[0003] T800 shrink yarn is an innovative double-helix structure textile yarn made from PBT and PET polyester fibers through parallel compounding. Its double-helix structure gives it superior elasticity and excellent moisture absorption and diffusion. Furthermore, the fabric made from it has a delicate hand feel and a superior cotton-like texture. Therefore, T800 shrink yarn shows great potential for application in shirt fabrics.

[0004] However, shirts made of T800 shrink yarn also have obvious shortcomings: on the one hand, T800 shrink yarn is made of polyester fiber, which makes the fabric made from it prone to static electricity, resulting in poor wearing comfort; on the other hand, T800 shrink yarn has weak blocking power against light (such as ultraviolet rays), resulting in poor anti-permeability.

[0005] Therefore, in order to solve the above problems, it is of great significance to provide a strong sun protection, breathability, wrinkle resistance, moisture absorption and quick-drying cotton-feel shirt fabric based on T800 shrink yarn and its preparation process. Summary of the Invention

[0006] The purpose of this invention is to provide a strong sun protection, breathability, wrinkle resistance, moisture absorption, quick-drying cotton-feel shirt fabric and its preparation process, so as to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A highly sun-protective, breathable, wrinkle-resistant, moisture-wicking, and quick-drying cotton-feel shirt fabric is made by interlacing multifunctional polyester yarns as warp and weft.

[0008] Furthermore, the multifunctional polyester yarn is obtained by melt-spinning modified PET masterbatch and modified PBT masterbatch and then compounding them in parallel, with a linear density of 5~15 tex.

[0009] Furthermore, the mass ratio of the modified PET masterbatch to the modified PBT masterbatch is (75~85):(15~25).

[0010] Furthermore, the modified PET masterbatch comprises the following raw material components by mass fraction: 4-8 wt% reinforcing and modifying material, 2-4 wt% propyl polyethylene glycol-terminated polydimethylsiloxane, and the remainder being PET.

[0011] Furthermore, the modified PBT masterbatch comprises the following raw material components by mass fraction: 4-8 wt% reinforcing and modifying material, 2-4 wt% propyl polyethylene glycol-terminated polydimethylsiloxane, and the remainder being PBT.

[0012] Furthermore, the parameters for preparing modified PET masterbatch are: melt blending temperature of 255~270℃ and screw speed of 100~300r / min; the parameters for preparing modified PBT masterbatch are: melt blending temperature of 230~245℃ and screw speed of 100~300r / min.

[0013] Further, the preparation method of the enhanced modified material is as follows: (1) Chitosan is added to 2~10wt% acetic acid aqueous solution, stirred and dissolved, and then 2,3-epoxypropyltrimethylammonium chloride is added to it and stirred at 60~70℃ for 2~4h; (2) The pH of the solution in (1) is first adjusted to 3~4, and then butyl titanate and zinc acetate dihydrate aqueous solution are slowly added dropwise to it under stirring. The addition is completed within 30min, and the solution is stirred at 80~100℃ for 3~6h. The pH of the solution is adjusted to 7.5~7.8, allowed to stand, centrifuged and filtered, washed, and vacuum dried at 130~140℃ for 1~3h to obtain modified chitosan; (3) Modified chitosan, long-chain fatty acyl chloride and triethylamine are added to dimethyl sulfoxide, stirred and reacted at room temperature for 6~12h, allowed to stand, centrifuged and filtered, washed, and vacuum dried to obtain the enhanced modified material.

[0014] Further, the modified chitosan comprises the following raw material components in parts by weight: 5-10 parts chitosan, 3-6 parts 2,3-epoxypropyltrimethylammonium chloride, 2-4 parts tetrabutyl titanate, 2.5-5 parts zinc acetate dihydrate, and 120-180 parts aqueous acetic acid solution.

[0015] Furthermore, the reinforcing and modified material comprises the following raw material components in parts by weight: 5-10 parts modified chitosan, 2.5-4 parts long-chain fatty acyl chloride, 1.2-2 parts triethylamine, and 100-120 parts dimethyl sulfoxide.

[0016] Furthermore, the chitosan is a low-degree-of-deacetylation chitosan with a degree of deacetylation of 55-70%.

[0017] Furthermore, the main carbon chain length of the long-chain fatty acyl chloride is >C8, including but not limited to one or more combinations of nonanoyl chloride, decanoyl chloride, lauroyl chloride, and tridecayl chloride.

[0018] This invention first modifies chitosan by quaternization with 2,3-epoxypropyltrimethylammonium chloride, introducing a positively charged quaternary ammonium salt structure onto the chitosan. Then, tetrabutyl titanate and zinc acetate dihydrate are added. Under pH 3-4, both react hydrolyzed to form negatively charged titanium dioxide precursor titanium hydroxide and negatively charged zinc oxide precursor zinc hydroxide. The quaternary ammonium salt structure attracts the negatively charged precursors and grows in situ, ultimately forming metal oxide nanoparticles. Furthermore, the phenolic hydroxyl groups on chitosan form hydrogen bonds with the hydroxyl groups on the oxide particles, allowing for a stronger bond between titanium oxide and zinc oxide and chitosan, thus preparing modified chitosan. Finally, long carbon chains are grafted onto the modified chitosan to prepare a reinforced modified material. The preferred chitosan in this invention is one with a low degree of deacetylation. The higher the degree of deacetylation of chitosan, the faster its acid degradation rate. However, in this invention, chitosan needs to be kept in a high-temperature acidic environment for a long time. If its acid degradation rate is too fast, it will lead to a significant decline in its performance. Therefore, chitosan with a degree of deacetylation of 55-70% is selected, which can ensure that there are enough reaction sites to participate in the reaction and better protect the overall performance of chitosan.

[0019] Furthermore, the preparation process of the aforementioned strong sun protection, breathability, wrinkle resistance, moisture absorption, and quick-drying cotton-feel shirt fabric is as follows: first, modified PET masterbatch and modified PBT masterbatch are melt-spun and compounded in parallel to obtain multifunctional polyester yarn; then, the multifunctional polyester yarn is plain-woven as warp and weft to obtain the strong sun protection, breathability, wrinkle resistance, moisture absorption, and quick-drying cotton-feel shirt fabric.

[0020] Furthermore, the melting temperature of the modified PET masterbatch is 270~280℃, and the melting temperature of the modified PBT masterbatch is 260~270℃; the spinning parameters are: spinneret orifice diameter is 0.2~0.4mm, spinning speed is 3000~4000m / min, and drawing ratio is 3~5 times.

[0021] Furthermore, the weight of the aforementioned strong sun protection, breathability, wrinkle resistance, moisture absorption, and quick-drying cotton-feel shirt fabric is 90~110 g / m². 2 .

[0022] Compared with the prior art, the beneficial effects achieved by the present invention are: (1) In this invention, reinforcing and modifying materials are used to modify PET and PBT. Since the quaternized chitosan structure in the reinforcing and modifying materials can provide antibacterial and antistatic properties, the antibacterial properties prevent mildew from occurring in the interwoven fabric, and the antistatic properties solve a major defect of traditional polyester clothing. The zinc oxide and titanium dioxide loaded on the chitosan have high refractive indices, which can scatter light, giving the fabric excellent anti-permeability and anti-ultraviolet properties. In addition, the reinforcing and modifying materials can also be used as mechanical reinforcing fillers, which also have a beneficial effect on the relevant mechanical properties of the fabric. By grafting long carbon chains onto the surface of the reinforcing and modifying materials, their dispersibility in PET and PBT can be improved, achieving a better modification effect.

[0023] (2) In this invention, propyl polyethylene glycol-terminated polydimethylsiloxane is added as propyl polyethylene glycol-terminated polydimethylsiloxane. It is a flexible long-chain molecule that can reduce the rigidity of PET and PBT, thereby enhancing the wrinkle resistance of the fabric. At the same time, propyl polyethylene glycol-terminated polydimethylsiloxane has good skin-friendly properties, which can further enhance the cotton feel of the fabric. However, the amount of propyl polyethylene glycol-terminated polydimethylsiloxane should not be too much. Too much will cause the mechanical properties of the fabric to decrease and the spinning performance of the masterbatch to decrease.

[0024] (3) The multifunctional polyester yarn in this invention is prepared based on T800 shrink yarn. This yarn has a spiral structure and presents an eight-shaped groove structure, which has a unique effect of instant moisture absorption and diffusion. Therefore, the strong sun protection, breathability, wrinkle resistance, moisture absorption and quick-drying cotton-feel shirt fabric has the effect of moisture absorption and quick-drying, and can quickly wick away moisture and sweat. Moreover, the drying speed after absorbing moisture is much faster than that of pure cotton fabric. At the same time, because the fabric weight is relatively light, it can feel light and weightless when wearing it, and will not become heavy like pure cotton fabric after absorbing moisture.

[0025] (4) This invention improves the defects of traditional polyester fabrics or T800 shrink yarn fabrics, such as poor antistatic performance and poor anti-permeability, by modifying PET and PBT with enhanced modified materials and propyl polyethylene glycol-terminated polydimethylsiloxane. At the same time, it also endows the fabric with excellent antibacterial and anti-ultraviolet properties. Finally, a cotton-feel shirt fabric with excellent comprehensive performance, strong sun protection, anti-permeability, wrinkle resistance, moisture absorption and quick drying is obtained. Detailed Implementation

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] It should be noted that the following quantities are by weight, and there are no special restrictions on the suppliers of all raw materials involved in this invention. Exemplary examples include: In the following examples, chitosan with a degree of deacetylation of 60% and 95%; 2,3-epoxypropyltrimethylammonium chloride; butyl titanate; zinc acetate dihydrate; and lauroyl chloride were all purchased from Merck Reagents Ltd. PET, grade: FR530, item number: HH2011RKTRNZ; PBT, grade: B4520, item number: 05131, were both purchased from Dongguan Shenghao Plastic Raw Materials Co., Ltd. Propyl polyethylene glycol-terminated polydimethylsiloxane, CAS No.: 156327-07-0, product number GEL-DMS-C15, purchased from Shanghai Mairui Biochemical Technology Co., Ltd.

[0028] Example 1: A preparation process for a cotton-feel shirt fabric with strong sun protection, breathability, wrinkle resistance, moisture absorption, and quick drying: S1: Preparation of reinforced modified material: (1) Add 7.5 parts of chitosan (60% deacetylation) to 150 parts of 5wt% acetic acid aqueous solution, stir to dissolve, then add 4.5 parts of 2,3-epoxypropyltrimethylammonium chloride, and stir to react at 65℃ for 3h; (2) First adjust the pH of the solution in (1) to 3.5, then while stirring, slowly add 3 parts of tetrabutyl titanate and 7.5 parts of 50wt% zinc acetate dihydrate to it. The aqueous solution was added dropwise over 30 minutes, stirred at 90°C for 4.5 hours, the pH of the solution was adjusted to 7.6, allowed to stand, centrifuged and filtered, washed, and vacuum dried at 135°C for 2 hours to obtain modified chitosan; (3) 7.5 parts of modified chitosan, 3.25 parts of lauroyl chloride and 1.6 parts of triethylamine were added to 110 parts of dimethyl sulfoxide, stirred and reacted at room temperature for 9 hours, allowed to stand, centrifuged and filtered, washed, and vacuum dried to obtain the enhanced modified material; S2: Preparation of modified PET masterbatch and modified PBT masterbatch: S21: PET, reinforcing and modifying materials, and propyl polyethylene glycol-terminated polydimethylsiloxane are heated to 265±2℃ to melt, and the screw speed is controlled at 200r / min. The mixture is then extruded and granulated to obtain modified PET masterbatch. The modified PET masterbatch comprises the following raw material components by mass fraction: 6 wt% reinforcing and modifying material, 3 wt% propyl polyethylene glycol-terminated polydimethylsiloxane, and the remainder being PET; S22: PBT, reinforcing and modifying materials, and propyl polyethylene glycol-terminated polydimethylsiloxane are heated to 235±2℃ to melt, and the screw speed is controlled at 200r / min. The mixture is then extruded and granulated to obtain modified PBT masterbatch. The modified PBT masterbatch comprises the following raw material components by mass fraction: 6 wt% reinforcing and modifying material, 3 wt% propyl polyethylene glycol-terminated polydimethylsiloxane, and the remainder being PBT; S3: Modified PET masterbatch is heated to 275±2℃ and modified PBT masterbatch is heated to 265±2℃ to melt. The mixture is spun with spinneret orifice diameter of 0.3mm, spinning speed of 3500m / min and stretch ratio of 4. The yarns are then combined in parallel to obtain a multifunctional polyester yarn with a linear density of 10tex. The mass ratio of modified PET masterbatch to modified PBT masterbatch is 80:20. S4: Multifunctional polyester yarn is used as warp and weft in a plain weave to obtain a highly sun-protective, breathable, wrinkle-resistant, moisture-wicking, quick-drying cotton-feel shirt fabric. The weight of this fabric is 95g / m². 2 .

[0029] Example 2: Preparation process of a cotton-feel shirt fabric with strong sun protection, breathability, wrinkle resistance, moisture absorption, and quick drying: Example 2 is based on Example 1, but with adjustments to the amount of raw material components in the modified PET masterbatch and modified PBT masterbatch. S1: Preparation of reinforced modified material: (1) Add 7.5 parts of chitosan (60% deacetylation) to 150 parts of 5wt% acetic acid aqueous solution, stir to dissolve, then add 4.5 parts of 2,3-epoxypropyltrimethylammonium chloride, and stir to react at 65℃ for 3h; (2) First adjust the pH of the solution in (1) to 3.5, then while stirring, slowly add 3 parts of tetrabutyl titanate and 7.5 parts of 50wt% zinc acetate dihydrate to it. The aqueous solution was added dropwise over 30 minutes, stirred at 90°C for 4.5 hours, the pH of the solution was adjusted to 7.6, allowed to stand, centrifuged and filtered, washed, and vacuum dried at 135°C for 2 hours to obtain modified chitosan; (3) 7.5 parts of modified chitosan, 3.25 parts of lauroyl chloride and 1.6 parts of triethylamine were added to 110 parts of dimethyl sulfoxide, stirred and reacted at room temperature for 9 hours, allowed to stand, centrifuged and filtered, washed, and vacuum dried to obtain the enhanced modified material; S2: Preparation of modified PET masterbatch and modified PBT masterbatch: S21: PET, reinforcing and modifying materials, and propyl polyethylene glycol-terminated polydimethylsiloxane are heated to 265±2℃ to melt, and the screw speed is controlled at 200r / min. The mixture is then extruded and granulated to obtain modified PET masterbatch. The modified PET masterbatch comprises the following raw material components by mass fraction: 4 wt% reinforcing and modifying material, 2 wt% propyl polyethylene glycol-terminated polydimethylsiloxane, and the remainder being PET; S22: PBT, reinforcing and modifying materials, and propyl polyethylene glycol-terminated polydimethylsiloxane are heated to 235±2℃ to melt, and the screw speed is controlled at 200r / min. The mixture is then extruded and granulated to obtain modified PBT masterbatch. The modified PBT masterbatch comprises the following raw material components by mass fraction: 4 wt% reinforcing and modifying material, 2 wt% propyl polyethylene glycol-terminated polydimethylsiloxane, and the remainder being PBT; S3: Modified PET masterbatch is heated to 275±2℃ and modified PBT masterbatch is heated to 265±2℃ to melt. The mixture is spun with spinneret orifice diameter of 0.3mm, spinning speed of 3500m / min and stretch ratio of 4. The yarns are then combined in parallel to obtain a multifunctional polyester yarn with a linear density of 10tex. The mass ratio of modified PET masterbatch to modified PBT masterbatch is 80:20. S4: Multifunctional polyester yarn is used as warp and weft in a plain weave to obtain a highly sun-protective, breathable, wrinkle-resistant, moisture-wicking, quick-drying cotton-feel shirt fabric. The weight of this fabric is 95g / m². 2 .

[0030] Example 3: A preparation process for a cotton-feel shirt fabric with strong sun protection, breathability, wrinkle resistance, moisture absorption, and quick drying: Example 3 is based on Example 1, but with adjustments to the amount of raw material components in the modified PET masterbatch and modified PBT masterbatch. S1: Preparation of reinforced modified material: (1) Add 7.5 parts of chitosan (60% deacetylation) to 150 parts of 5wt% acetic acid aqueous solution, stir to dissolve, then add 4.5 parts of 2,3-epoxypropyltrimethylammonium chloride, and stir to react at 65℃ for 3h; (2) First adjust the pH of the solution in (1) to 3.5, then while stirring, slowly add 3 parts of tetrabutyl titanate and 7.5 parts of 50wt% zinc acetate dihydrate to it. The aqueous solution was added dropwise over 30 minutes, stirred at 90°C for 4.5 hours, the pH of the solution was adjusted to 7.6, allowed to stand, centrifuged and filtered, washed, and vacuum dried at 135°C for 2 hours to obtain modified chitosan; (3) 7.5 parts of modified chitosan, 3.25 parts of lauroyl chloride and 1.6 parts of triethylamine were added to 110 parts of dimethyl sulfoxide, stirred and reacted at room temperature for 9 hours, allowed to stand, centrifuged and filtered, washed, and vacuum dried to obtain the enhanced modified material; S2: Preparation of modified PET masterbatch and modified PBT masterbatch: S21: PET, reinforcing and modifying materials, and propyl polyethylene glycol-terminated polydimethylsiloxane are heated to 265±2℃ to melt, and the screw speed is controlled at 200r / min. The mixture is then extruded and granulated to obtain modified PET masterbatch. The modified PET masterbatch comprises the following raw material components by mass fraction: 8 wt% reinforcing and modifying material, 4 wt% propyl polyethylene glycol-terminated polydimethylsiloxane, and the remainder being PET; S22: PBT, reinforcing and modifying materials, and propyl polyethylene glycol-terminated polydimethylsiloxane are heated to 235±2℃ to melt, and the screw speed is controlled at 200r / min. The mixture is then extruded and granulated to obtain modified PBT masterbatch. The modified PBT masterbatch comprises the following raw material components by mass fraction: 8 wt% reinforcing and modifying material, 4 wt% propyl polyethylene glycol-terminated polydimethylsiloxane, and the remainder being PBT; S3: Modified PET masterbatch is heated to 275±2℃ and modified PBT masterbatch is heated to 265±2℃ to melt. The mixture is spun with spinneret orifice diameter of 0.3mm, spinning speed of 3500m / min and stretch ratio of 4. The yarns are then combined in parallel to obtain a multifunctional polyester yarn with a linear density of 10tex. The mass ratio of modified PET masterbatch to modified PBT masterbatch is 80:20. S4: Multifunctional polyester yarn is used as warp and weft in a plain weave to obtain a highly sun-protective, breathable, wrinkle-resistant, moisture-wicking, quick-drying cotton-feel shirt fabric. The weight of this fabric is 95g / m². 2 .

[0031] The following is a control experiment based on Example 1, with comparative examples 1 to 5, as detailed below: Comparative Example 1: Comparative Example 1 is based on Example 1, with the following adjustments: no reinforcing modifiers are added to the modified PET masterbatch and modified PBT masterbatch, while other processes remain unchanged. Specifically: A manufacturing process for a highly sun-protective, breathable, wrinkle-resistant, moisture-wicking, and quick-drying cotton-feel shirt fabric: S1: Preparation of modified PET masterbatch and modified PBT masterbatch: S11: PET and propyl polyethylene glycol-terminated polydimethylsiloxane are heated to 265±2℃ to melt, and the screw speed is controlled at 200r / min. The mixture is then extruded and granulated to obtain modified PET masterbatch. The modified PET masterbatch comprises the following raw material components by mass fraction: 3 wt% propyl polyethylene glycol-terminated polydimethylsiloxane, the remainder being PET; S12: PBT and propyl polyethylene glycol-terminated polydimethylsiloxane are heated to 235±2℃ to melt, and the screw speed is controlled at 200r / min. The mixture is then extruded and granulated to obtain modified PBT masterbatch. The modified PBT masterbatch comprises the following raw material components by mass fraction: 3 wt% propyl polyethylene glycol-terminated polydimethylsiloxane, with the remainder being PBT; S2: Modified PET masterbatch is heated to 275±2℃ and modified PBT masterbatch is heated to 265±2℃ to melt. The mixture is spun with spinneret orifice diameter of 0.3mm, spinning speed of 3500m / min, and stretch ratio of 4. The yarns are then combined in parallel to obtain a multifunctional polyester yarn with a linear density of 10tex. The mass ratio of modified PET masterbatch to modified PBT masterbatch is 80:20. S4: Multifunctional polyester yarn is used as warp and weft in a plain weave to obtain a highly sun-protective, breathable, wrinkle-resistant, moisture-wicking, quick-drying cotton-feel shirt fabric. The weight of this fabric is 95g / m². 2 .

[0032] Comparative Example 2: Comparative Example 2 is based on Example 1, with the following adjustments: propyl polyethylene glycol-terminated polydimethylsiloxane is not added to the modified PET masterbatch and modified PBT masterbatch, while other processes remain unchanged. Specifically: A manufacturing process for a highly sun-protective, breathable, wrinkle-resistant, moisture-wicking, and quick-drying cotton-feel shirt fabric: S1: Preparation of reinforced modified material: (1) Add 7.5 parts of chitosan (60% deacetylation) to 150 parts of 5wt% acetic acid aqueous solution, stir to dissolve, then add 4.5 parts of 2,3-epoxypropyltrimethylammonium chloride, and stir to react at 65℃ for 3h; (2) First adjust the pH of the solution in (1) to 3.5, then while stirring, slowly add 3 parts of tetrabutyl titanate and 7.5 parts of 50wt% zinc acetate dihydrate to it. The aqueous solution was added dropwise over 30 minutes, stirred at 90°C for 4.5 hours, the pH of the solution was adjusted to 7.6, allowed to stand, centrifuged and filtered, washed, and vacuum dried at 135°C for 2 hours to obtain modified chitosan; (3) 7.5 parts of modified chitosan, 3.25 parts of lauroyl chloride and 1.6 parts of triethylamine were added to 110 parts of dimethyl sulfoxide, stirred and reacted at room temperature for 9 hours, allowed to stand, centrifuged and filtered, washed, and vacuum dried to obtain the enhanced modified material; S2: Preparation of modified PET masterbatch and modified PBT masterbatch: S21: Heat PET and reinforcing modified materials to 265±2℃ to melt, control the screw speed to 200r / min, and extrude and granulate to obtain modified PET masterbatch; Modified PET masterbatch comprises the following raw material components by mass fraction: 6 wt% reinforcing and modifying material, the remainder being PET; S22: PBT and reinforcing modified materials are heated to 235±2℃ to melt, and the screw speed is controlled at 200r / min. The mixture is then extruded and granulated to obtain modified PBT masterbatch. The modified PBT masterbatch comprises the following raw material components by mass fraction: 6 wt% reinforcing and modifying material, and the remainder is PBT; S3: Modified PET masterbatch is heated to 275±2℃ and modified PBT masterbatch is heated to 265±2℃ to melt. The mixture is spun with spinneret orifice diameter of 0.3mm, spinning speed of 3500m / min and stretch ratio of 4. The yarns are then combined in parallel to obtain a multifunctional polyester yarn with a linear density of 10tex. The mass ratio of modified PET masterbatch to modified PBT masterbatch is 80:20. S4: Multifunctional polyester yarn is used as warp and weft in a plain weave to obtain a highly sun-protective, breathable, wrinkle-resistant, moisture-wicking, quick-drying cotton-feel shirt fabric. The weight of this fabric is 95g / m². 2 .

[0033] Comparative Example 3: Comparative Example 3 is based on Example 1, with the following adjustment: no modification treatment is performed on PET or PBT, while other processes remain unchanged. Specifically: A manufacturing process for a highly sun-protective, breathable, wrinkle-resistant, moisture-wicking, and quick-drying cotton-feel shirt fabric: S1: PET is heated to 275±2℃ and PBT is heated to 265±2℃ to melt. The yarn is spun with spinneret orifice diameter of 0.3mm, spinning speed of 3500m / min, and stretch ratio of 4. The yarns are then combined in parallel to obtain a multifunctional polyester yarn with a linear density of 10tex. The mass ratio of PET to PBT is 80:20. S2: Multifunctional polyester yarn is used as warp and weft in a plain weave to obtain a highly sun-protective, breathable, wrinkle-resistant, moisture-wicking, quick-drying cotton-feel shirt fabric. The weight of this fabric is 95g / m². 2 .

[0034] Comparative Example 4: Comparative Example 4 is based on Example 1, with the following adjustments: chitosan with a degree of deacetylation of 95% was used, while other processes remained unchanged. Specifically: A manufacturing process for a highly sun-protective, breathable, wrinkle-resistant, moisture-wicking, and quick-drying cotton-feel shirt fabric: S1: Preparation of reinforced modified material: (1) Add 7.5 parts of chitosan (95% degree of deacetylation) to 150 parts of 5wt% acetic acid aqueous solution, stir to dissolve, then add 4.5 parts of 2,3-epoxypropyltrimethylammonium chloride, and stir to react at 65℃ for 3h; (2) First adjust the pH of the solution in (1) to 3.5, then while stirring, slowly add 3 parts of tetrabutyl titanate and 7.5 parts of 50wt% zinc acetate dihydrate to it. The aqueous solution was added dropwise over 30 minutes, stirred at 90°C for 4.5 hours, the pH of the solution was adjusted to 7.6, allowed to stand, centrifuged and filtered, washed, and vacuum dried at 135°C for 2 hours to obtain modified chitosan; (3) 7.5 parts of modified chitosan, 3.25 parts of lauroyl chloride and 1.6 parts of triethylamine were added to 110 parts of dimethyl sulfoxide, stirred and reacted at room temperature for 9 hours, allowed to stand, centrifuged and filtered, washed, and vacuum dried to obtain the enhanced modified material; S2: Preparation of modified PET masterbatch and modified PBT masterbatch: S21: PET, reinforcing and modifying materials, and propyl polyethylene glycol-terminated polydimethylsiloxane are heated to 265±2℃ to melt, and the screw speed is controlled at 200r / min. The mixture is then extruded and granulated to obtain modified PET masterbatch. The modified PET masterbatch comprises the following raw material components by mass fraction: 6 wt% reinforcing and modifying material, 3 wt% propyl polyethylene glycol-terminated polydimethylsiloxane, and the remainder being PET; S22: PBT, reinforcing and modifying materials, and propyl polyethylene glycol-terminated polydimethylsiloxane are heated to 235±2℃ to melt, and the screw speed is controlled at 200r / min. The mixture is then extruded and granulated to obtain modified PBT masterbatch. The modified PBT masterbatch comprises the following raw material components by mass fraction: 6 wt% reinforcing and modifying material, 3 wt% propyl polyethylene glycol-terminated polydimethylsiloxane, and the remainder being PBT; S3: Modified PET masterbatch is heated to 275±2℃ and modified PBT masterbatch is heated to 265±2℃ to melt. The mixture is spun with spinneret orifice diameter of 0.3mm, spinning speed of 3500m / min and stretch ratio of 4. The yarns are then combined in parallel to obtain a multifunctional polyester yarn with a linear density of 10tex. The mass ratio of modified PET masterbatch to modified PBT masterbatch is 80:20. S4: Multifunctional polyester yarn is used as warp and weft in a plain weave to obtain a highly sun-protective, breathable, wrinkle-resistant, moisture-wicking, quick-drying cotton-feel shirt fabric. The weight of this fabric is 95g / m². 2 .

[0035] Comparative Example 5: Comparative Example 5 uses 10tex cotton yarn as the warp and weft threads, as detailed below: S1: Cotton yarn is woven in a plain weave as warp and weft to obtain the fabric, with a weight of 95g / m². 2 .

[0036] Performance testing: The fabrics prepared in Examples 1-3 and Comparative Examples 1-5 were tested for wrinkle resistance, softness, antistatic properties, sun protection properties, antibacterial properties, and moisture-wicking and quick-drying properties. The specific test methods are as follows: 1. Wrinkle resistance: According to the standard GB / T 3819-1997, the wrinkle resistance of each group of fabrics was tested using the horizontal method. Five samples were taken in the warp direction and five samples were taken in the weft direction for each group of fabrics. The larger the total crease recovery angle reading, the better the wrinkle resistance. 2. Softness performance: The softness of each group of fabrics was tested using a YT-RRY1000 softness tester; 3. Antistatic performance: Antistatic tests were conducted on each group of fabrics according to GB / T 12703.2-2021 standard; the surface charge density of antistatic textiles is ≤7.0μC / m 2 It has an antistatic effect; 4. Sun protection performance: According to GB / T 18830-2009 standard, the sun protection performance of each group of fabrics was tested using 290nm~400nm ultraviolet light; if the measured UPF>40 and T(UVA) AV <5% has a sun protection effect; and the quality of sun protection performance can, to some extent, indicate the quality of its anti-penetration performance. 5. Antibacterial properties: Antibacterial properties of each group of fabrics were tested according to GB / T 20944.3-2008; if the inhibition rate against Staphylococcus aureus and Escherichia coli is ≥70%, it has antibacterial effect. 6. Moisture absorption and quick-drying performance: According to the standard GB / T 21655.2-2019, water was used to test the moisture absorption and quick-drying performance of each group of fabrics; if the soaking time is ≥3, the water absorption rate is ≥3, the maximum soaking radius is ≥3, and the liquid water diffusion rate is ≥3, then it has moisture absorption and quick-drying performance.

[0037] Table 1

[0038] Results Analysis: As shown in Table 1 above, this invention improves the defects of traditional polyester fabrics or T800 shrink yarn fabrics, such as poor antistatic performance and poor seepage prevention, by modifying PET and PBT with reinforcing and modifying materials and propyl polyethylene glycol-terminated polydimethylsiloxane. At the same time, it also endows the fabric with excellent antibacterial and anti-ultraviolet properties. Finally, a cotton-feel shirt fabric with excellent comprehensive performance, strong sun protection, seepage prevention, wrinkle resistance, moisture absorption and quick drying, was prepared.

[0039] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cotton-feel shirt fabric with strong sun protection, breathability, wrinkle resistance, moisture absorption, and quick-drying properties, characterized in that: The highly sun-protective, breathable, wrinkle-resistant, moisture-wicking, and quick-drying cotton-feel shirt fabric is made of multifunctional polyester yarn interwoven as warp and weft. The multifunctional polyester yarn is obtained by melt-spinning modified PET masterbatch and modified PBT masterbatch and then compounding them side by side. The modified PET masterbatch includes the following raw material components by mass fraction: 4-8 wt% reinforcing modifier, 2-4 wt% propyl polyethylene glycol-terminated polydimethylsiloxane, and the remainder being PET. The modified PBT masterbatch includes the following raw material components by mass fraction: 4-8 wt% reinforcing modifier, 2-4 wt% propyl polyethylene glycol-terminated polydimethylsiloxane, and the remainder being PBT.

2. The strong sun protection, breathability, wrinkle resistance, moisture absorption, and quick-drying cotton-feel shirt fabric according to claim 1, characterized in that: The mass ratio of the modified PET masterbatch to the modified PBT masterbatch is (75~85):(15~25).

3. The strong sun protection, breathability, wrinkle resistance, moisture absorption, and quick-drying cotton-feel shirt fabric according to claim 1, characterized in that: The preparation method of the enhanced modified material is as follows: (1) Chitosan is dissolved in an aqueous acetic acid solution, and then 2,3-epoxypropyltrimethylammonium chloride is added. The mixture is stirred at 60~70℃ and the pH is adjusted to 3~4. Then, tetrabutyl titanate and zinc acetate dihydrate aqueous solution are added dropwise to the solution. The mixture is stirred at 80~100℃ and the pH is adjusted to 7.5~7.

8. The mixture is allowed to stand, filtered, washed and dried to obtain modified chitosan; (2) Modified chitosan, long-chain fatty acyl chloride and triethylamine are added to dimethyl sulfoxide and stirred at room temperature for 6~12h. The mixture is allowed to stand, filtered, washed and dried to obtain the enhanced modified material.

4. The strong sun protection, breathability, wrinkle resistance, moisture absorption, and quick-drying cotton-feel shirt fabric according to claim 3, characterized in that: The chitosan is a low-degree-of-deacetylation chitosan, with a degree of deacetylation of 55-70%.

5. The strong sun protection, breathability, wrinkle resistance, moisture absorption, and quick-drying cotton-feel shirt fabric according to claim 3, characterized in that: The main carbon chain length of the long-chain fatty acyl chloride is >C8, including one or more combinations of nonanoyl chloride, decanoyl chloride, lauroyl chloride, and tridecayl chloride.

6. The strong sun protection, breathability, wrinkle resistance, moisture absorption, and quick-drying cotton-feel shirt fabric according to claim 3, characterized in that: The modified chitosan comprises the following raw material components in parts by weight: 5-10 parts chitosan, 3-6 parts 2,3-epoxypropyltrimethylammonium chloride, 2-4 parts tetrabutyl titanate, 2.5-5 parts zinc acetate dihydrate, and 120-180 parts aqueous acetic acid solution; the reinforcing and modifying material comprises the following raw material components in parts by weight: 5-10 parts modified chitosan, 2.5-4 parts long-chain fatty acyl chloride, 1.2-2 parts triethylamine, and 100-120 parts dimethyl sulfoxide.

7. The strong sun protection, breathability, wrinkle resistance, moisture absorption, and quick-drying cotton-feel shirt fabric according to claim 1, characterized in that: The linear density of the multifunctional polyester yarn is 5~15 tex; The weight of the highly sun-protective, breathable, wrinkle-resistant, moisture-wicking, and quick-drying cotton-feel shirt fabric is 90~110g / m². 2 .

8. The preparation process of a high-sun protection, breathability, wrinkle resistance, moisture absorption, and quick-drying cotton-feel shirt fabric according to claim 1, characterized in that: Specifically, the modified PET masterbatch and modified PBT masterbatch are first melt-spun and then compounded in parallel to obtain a multifunctional polyester yarn; then the multifunctional polyester yarn is interwoven as warp and weft to obtain a cotton-feel shirt fabric with strong sun protection, breathability, wrinkle resistance, moisture absorption and quick drying.

9. The preparation process of a strong sun-protective, breathable, wrinkle-resistant, moisture-wicking, and quick-drying cotton-feel shirt fabric according to claim 8, characterized in that: The melting temperature of modified PET masterbatch is 270~280℃, and the melting temperature of modified PBT masterbatch is 260~270℃; the spinneret parameters are: spinneret orifice diameter is 0.2~0.4mm, spinning speed is 3000~4000m / min, and drawing ratio is 3~5 times.

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