Anti-deformation high-glossiness textile fabric and preparation process thereof

Abstract

The invention relates to the technical field of fabrics, and discloses an anti-deformation high-glossiness textile fabric and a preparation process thereof.The fabric is formed by interweaving warp yarns and weft yarns, the warp yarns are spandex filaments, the weft yarns are polyester composite fibers, the polyester composite fibers are prepared from polyester fiber slices, modified potassium titanate whiskers, antioxidants and other raw materials, and the anti-deformation high-glossiness textile fabric is formed by weaving the polyester fiber slices, the modified potassium titanate whiskers, the antioxidants and the like. The modified potassium titanate whisker is prepared by modifying the surface of the potassium hexatitanate whisker with a macromolecular modifier with a polysulfide rubber-phenyl adamantane block alternating link structure, the modified potassium titanate whisker is used as an additive of the polyester fiber to reinforce the polyester fiber, and the advantages of the potassium titanate whisker and the macromolecular modifier are utilized to reinforce the polyester fiber, so that the polyester fiber has a good anti-static effect, and the anti-static performance of the polyester fiber is improved. The breaking strength, the elongation and the elastic recovery rate of the polyester fiber are improved, so that the prepared fabric has good deformation resistance, and the prepared fabric has the characteristic of high glossiness by selecting the spandex and the polyester.

Description

Technical Field

[0001] The present invention relates to the technical field of fabrics, and particularly to a textile fabric with anti-deformation and high gloss and its preparation process. Background Art

[0002] In the field of textile fabrics, anti-deformation and high gloss are key indicators for measuring product quality and added value. The former is related to the durability and practicality of the fabric, while the latter directly affects visual beauty and market competitiveness. With the continuous upgrading of material science, textile technology and consumer demands, anti-deformation and high-gloss textile fabrics are becoming the core development direction of high-end clothing, home decoration and industrial textiles through the collaborative breakthroughs of fiber innovation, structural design and post-finishing technology.

[0003] At present, most of the fibers used in fabrics are synthetic fibers. Among them, spandex has good elasticity, high comfort, and strong chemical corrosion resistance, and is often used in making sportswear. However, its gloss is low, it is easy to break when used alone, and the production cost is relatively high. Therefore, in actual applications, it generally needs to be blended with other fibers. Polyester fiber has high gloss and can be one of the choices for blending with spandex. By taking advantage of each other's advantages and forming complementary advantages, a composite fabric with excellent performance can be produced.

[0004] However, the anti-deformation performance of polyester fiber is not strong. Under the action of high-frequency stretching and pulling, it will deform and is difficult to match the high elasticity of spandex, resulting in an impact on the service life of the fabric. Summary of the Invention

[0005] In order to solve the problems mentioned in the background art, the purpose of the present invention is to provide a textile fabric with anti-deformation and high gloss and its preparation process.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A textile fabric with anti-deformation and high gloss is formed by interweaving warp yarns and weft yarns; the warp yarns are spandex filaments; the weft yarns are polyester composite fibers; the polyester composite fibers include the following raw materials in parts by weight:

[0008] 35-45 parts of polyester fiber chips, 1-3.5 parts of modified potassium titanate whiskers, 0.5-1 part of antioxidant, 1-2 parts of lubricant.

[0009] As a further scheme of the present invention, the preparation method of the polyester composite fiber includes the following steps:

[0010] Step 1: By weight parts, add polyester fiber chips, modified potassium titanate whiskers, antioxidant, and lubricant into a high-speed mixer, mix evenly, then feed them into a twin-screw extruder through a feeding hopper, and obtain masterbatch through a melt extrusion process. Then, spin the masterbatch through a melt spinning process to obtain fiber pre-material;

[0011] Step 2: Perform drawing spinning on the fiber pre-material, and then carry out winding, shaping, bunching drawing, and heat setting treatments, and that's it.

[0012] As a further solution of the present invention, the preparation method of the modified potassium titanate whiskers includes the following steps:

[0013] Step S1: Add potassium hexatitanate whiskers into an ethanol aqueous solution with a volume fraction of 70%, ultrasonically treat until a uniform dispersion is formed, then add a coupling agent into the dispersion, hydrolyze at 50 - 60 °C for 1 - 2 h, then raise the temperature to 60 - 70 °C, keep warm for 4 - 8 h, cool down and discharge, and thus obtain organic potassium hexatitanate whiskers;

[0014] Step S2: Ultrasonically disperse the organic potassium hexatitanate whiskers in N,N-dimethylformamide, then add 2,2-bis(4-hydroxyphenyl)adamantane, stir evenly, then continue to add a catalyst. After adding, raise the temperature to 70 - 80 °C, keep warm for 2 - 4 h, then add halogen-terminated polysulfide rubber, and raise the temperature to 90 - 100 °C, continuously carry out chain extension polymerization for 12 - 18 h, stop heating, cool down and discharge to obtain modified potassium titanate whiskers.

[0015] As a further solution of the present invention, in Step S1, the coupling agent is 3-chloropropyltrimethoxysilane, 3-chloropropyltriethoxysilane, or 3-bromopropyltrimethoxysilane.

[0016] As a further solution of the present invention, in Step S2, the catalyst is an aqueous sodium hydroxide solution or an aqueous potassium hydroxide solution.

[0017] As a further solution of the present invention, in Step S2, the preparation method of the halogen-terminated polysulfide rubber is as follows:

[0018] Add liquid polysulfide rubber, haloalkyl isocyanate, and xylene into a reaction kettle filled with nitrogen. After adding, start stirring until a uniform reaction solution is formed. Then add a tin catalyst into the reaction kettle, raise the temperature to 70 - 80 °C, stir for 4 - 8 h, remove nitrogen, rotary evaporate to remove the solvent, collect the product, and through a purification process, obtain the halogen-terminated polysulfide rubber.

[0019] As a further solution of the present invention, the haloalkyl isocyanate is chloroethyl isocyanate or 3-chloropropyl isocyanate.

[0020] As a further solution of the present invention, the tin catalyst is any one of stannous octoate, dibutyltin dilaurate or dibutyltin diacetate.

[0021] In the above technical solution, first, potassium hexatitanate whiskers are surface-modified with a silane coupling agent to obtain organic potassium hexatitanate whiskers with halogen substituents on the surface. Then, using 2,2-bis(4-hydroxyphenyl)adamantane as a bridging agent, the phenolic hydroxyl group at one end of its structure can be substituted with the halogen substituent of the organic potassium hexatitanate whiskers under the action of a catalyst, and the phenolic hydroxyl group at the other end is substituted with halogen-terminated polysulfide rubber. The unreacted 2,2-bis(4-hydroxyphenyl)adamantane in the system can continuously and uninterruptedly react with the halogen-terminated polysulfide rubber, so as to modify a macromolecular modifier with a polysulfide rubber-phenyladamantane block alternating link structure on the surface of the potassium hexatitanate whiskers, and obtain modified potassium titanate whiskers.

[0022] Among them, the halogen-terminated polysulfide rubber is prepared by reacting a liquid polysulfide rubber and a haloalkyl isocyanate as raw materials, and the active mercapto functional groups and isocyanate functional groups in their structures react with each other under the action of a tin catalyst.

[0023] As a further solution of the present invention, the antioxidant is at least one of antioxidant 1010, antioxidant 168 or antioxidant 1076; the lubricant is polyethylene wax.

[0024] A preparation process of an anti-deformation and high-gloss textile fabric includes the following steps:

[0025] The first step: Twist 3-5 spandex filaments into a strand as the warp.

[0026] The second step: Twist 3-5 polyester composite fibers into a strand to make the weft.

[0027] The third step: Interlace and weave the warp and the weft, and control the warp density to be 25-30 strands / cm and the weft density to be 20-25 strands / cm.

[0028] The beneficial effects of the present invention:

[0029] In the present invention, a modified potassium titanate whisker is prepared by modifying the surface of potassium hexa-titanate whisker with a macromolecular modifier having a poly-sulfide rubber-phenyladamantane block alternating link structure, and used as an additive for polyester fiber to reinforce the polyester fiber. First, the macromolecular modifier contains a benzene ring, which can produce π-π conjugation with the benzene ring in the PET molecular chain. Therefore, during the melt extrusion process, an intertwined network molecular chain structure will be formed between them, and the potassium hexa-titanate whisker exists in the composite fiber in the form of a network core, which can efficiently exert the pulling effect of its own whisker, and at the same time play the role of stress transfer and dispersion, improving the breaking strength and elongation of the polyester fiber. Second, the poly-sulfide rubber in the macromolecular modifier can improve the elasticity of the polyester fiber, enabling it to quickly rebound when subjected to external force, and improving the elastic recovery rate of the fiber, so that the prepared fabric has good anti-deformation performance.

[0030] The present invention uses a polyester composite fiber with high gloss as the weft yarn of the fabric, which can make the prepared fabric have the characteristic of high gloss.

[0031] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. Detailed implementation mode

[0032] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0033] Embodiment 1

[0034] Preparation of polyester composite fiber:

[0035] Step 1: By weight, 35 parts of polyester fiber chips, 1 part of modified potassium titanate whisker, 0.5 part of antioxidant 1010, and 1 part of lubricant polyethylene wax are added to a high-speed mixer and mixed evenly. Then, they are fed into a twin-screw extruder through a feed hopper, and the temperature is controlled at 250°C, and the screw speed is 120 rpm to carry out the melt extrusion process to obtain masterbatch. Then, the masterbatch is melt-spun using the melt spinning process, controlling the spinning temperature at 280°C, the draw ratio at 3 times, and the spinning speed at 200 m / min to obtain the fiber pre-material.

[0036] Step 2: The fiber pre-material is drawn and spun, and then subjected to winding, shaping, bunching draw, and heat setting treatments.

[0037] The preparation method of the modified potassium titanate whisker includes the following steps:

[0038] Step S1: Add 3.5 g of potassium hexatitanate whiskers into an ethanol aqueous solution with a volume fraction of 70%, and ultrasonically disperse until a uniform dispersion is formed. Then add 1.8 g of 3-chloropropyltriethoxysilane into the dispersion, hydrolyze at 55 °C for 2 h, then raise the temperature to 65 °C, keep the temperature for 6 h, cool down and discharge to obtain organic potassium hexatitanate whiskers;

[0039] Step S2: Ultrasonically disperse 1.5 g of organic potassium hexatitanate whiskers in N,N-dimethylformamide, then add 8 g of 2,2-bis(4-hydroxyphenyl)adamantane, stir well, continue to add 10 mL of a 20% sodium hydroxide aqueous solution by mass. After adding, raise the temperature to 75 °C, keep the temperature for 3 h, then add 5 g of halogen-terminated polysulfide rubber, and raise the temperature to 100 °C, continuously carry out chain extension polymerization for 16 h, stop heating, cool down and discharge to obtain modified potassium titanate whiskers.

[0040] Weigh 0.2 g of the modified potassium titanate whiskers as the sample to be tested, and use an organic element analyzer to test the sulfur element content. The test result shows that the percentage content of sulfur element is 5.14%.

[0041] The preparation method of the halogen-terminated polysulfide rubber is as follows:

[0042] Add 0.5 g of LP-3 type liquid polysulfide rubber, 0.03 g of chloroethyl isocyanate and xylene into a reaction kettle filled with nitrogen. After adding, start stirring until a uniform reaction solution is formed. Then add 0.01 g of dibutyltin dilaurate into the reaction kettle, raise the temperature to 75 °C, stir for 6 h, remove nitrogen, rotary evaporate to remove the solvent, collect the product, and through the purification process to obtain the halogen-terminated polysulfide rubber.

[0043] Example 2

[0044] Preparation of polyester composite fiber:

[0045] Step 1: By weight, add 38 parts of polyester fiber chips, 3 parts of modified potassium titanate whiskers, 0.6 part of antioxidant 1076, and 1.5 parts of lubricant polyethylene wax into a high-speed mixer, mix evenly, then feed into a twin-screw extruder through a feeding hopper, control the temperature at 250 °C, the screw speed at 120 rpm, carry out a melt extrusion process to obtain masterbatch, and then use a melt spinning process for the masterbatch, control the spinning temperature at 280 °C, the draw ratio at 3 times, and the spinning speed at 200 m / min to carry out melt spinning to obtain fiber pre-materials;

[0046] Step 2: Carry out drawing spinning on the fiber pre-materials, and then through winding, shaping, bunch drawing and heat setting treatments, it is okay.

[0047] The preparation method of the modified potassium titanate whiskers is the same as that in Example 1.

[0048] Example 3

[0049] Preparation of polyester composite fiber:

[0050] Step 1: By weight, add 45 parts of polyester fiber chips, 3.5 parts of modified potassium titanate whiskers, 1 part of antioxidant 168, and 2 parts of lubricant polyethylene wax into a high-speed mixer, mix evenly, then feed them into a twin-screw extruder through a feeding hopper, control the temperature at 250 °C, the screw speed at 120 rpm, and carry out a melt extrusion process to obtain masterbatch. Then, use the melt spinning process for the masterbatch, control the spinning temperature at 280 °C, the drawing ratio at 3 times, and the spinning speed at 200 m / min to carry out melt spinning to obtain fiber pre-material;

[0051] Step 2: Carry out drawing and spinning on the fiber pre-material, and then carry out winding, forming, bunching and drawing, and heat setting treatments. That's it.

[0052] The preparation method of the modified potassium titanate whiskers is the same as that in Example 1.

[0053] Comparative Example 1

[0054] Preparation of polyester composite fiber:

[0055] Step 1: By weight, add 38 parts of polyester fiber chips, 3 parts of potassium hexatitanate whiskers, 0.6 part of antioxidant 1076, and 1.5 parts of lubricant polyethylene wax into a high-speed mixer, mix evenly, then feed them into a twin-screw extruder through a feeding hopper, control the temperature at 250 °C, the screw speed at 120 rpm, and carry out a melt extrusion process to obtain masterbatch. Then, use the melt spinning process for the masterbatch, control the spinning temperature at 280 °C, the drawing ratio at 3 times, and the spinning speed at 200 m / min to carry out melt spinning to obtain fiber pre-material;

[0056] Step 2: Carry out drawing and spinning on the fiber pre-material, and then carry out winding, forming, bunching and drawing, and heat setting treatments. That's it.

[0057] Comparative Example 2

[0058] Preparation of polyester composite fiber:

[0059] Step 1: By weight, add 38 parts of polyester fiber chips, 0.6 part of antioxidant 1076, and 1.5 parts of lubricant polyethylene wax into a high-speed mixer, mix evenly, then feed them into a twin-screw extruder through a feeding hopper, control the temperature at 250 °C, the screw speed at 120 rpm, and carry out a melt extrusion process to obtain masterbatch. Then, use the melt spinning process for the masterbatch, control the spinning temperature at 280 °C, the drawing ratio at 3 times, and the spinning speed at 200 m / min to carry out melt spinning to obtain fiber pre-material;

[0060] Step 2: Perform drafting and spinning on the fiber pre-material, and then carry out winding, forming, collective drafting, and heat setting treatments, and that's it.

[0061] Performance test

[0062] According to the standard GB / T 14344-2008, conduct the tests of breaking strength and elongation at break;

[0063] According to the standard ASTM D3107, conduct the test of elastic recovery rate;

[0064] The test results are shown in the following table:

[0065] Project Breaking strength / cN / dtex Elongation at break / % Elastic recovery rate / % Example 1 4.1 33.4 95.9 Example 2 4.4 34.5 96.6 Example 3 4.3 34.3 96.4 Comparative example 1 3.6 28.8 81.3 Comparative example 2 2.1 19.8 81.1

[0066] Analyzing the test results, it can be known that the polyester composite fiber prepared by using modified potassium titanate whiskers as additives significantly has more excellent comprehensive properties such as anti-deformation. While directly using un-surface-modified potassium hexatitanate whiskers as additives, on the one hand, it is difficult to generate good interfacial action with the PET matrix, resulting in its inability to fully exert its own advantages, and it is also unable to carry out efficient stress transfer and dispersion, leading to obvious decline in various properties of the fiber.

[0067] Use the polyester composite fiber in Example 2 to prepare a textile fabric with anti-deformation and high gloss. The specific method is as follows:

[0068] A preparation process of a textile fabric with anti-deformation and high gloss includes the following steps:

[0069] The first step: Twist 5 spandex filaments into a strand as the warp;

[0070] The second step: Twist 5 polyester composite fibers into a strand to make the weft;

[0071] The third step: Interlace and weave the warp and the weft, and control the warp density to be 30 strands / cm and the weft density to be 25 strands / cm, and that's it.

[0072] In this article, specific examples are used to illustrate the principles and implementation manners of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention, including the best mode, and also enables any person skilled in the art to practice the present invention, including manufacturing and using any device or system, and implementing any combined method. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention. The protection scope of the present invention patent is defined by the claims and may include other embodiments that can be conceived by those skilled in the art. If these other embodiments have structural elements similar to the literal description of the claims, or if they include equivalent structural elements that have no substantial difference from the literal description of the claims, then these other embodiments should also be included within the scope of the claims.

[0073] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A textile fabric with anti-deformation and high gloss, characterized in that, It is formed by the interlaced weaving of warp yarns and weft yarns; the warp yarns are spandex filaments; the weft yarns are polyester composite fibers; the polyester composite fibers include the following raw materials measured by weight parts: 35-45 parts of polyester fiber chips, 1-3.5 parts of modified potassium titanate whiskers, 0.5-1 part of antioxidant, 1-2 parts of lubricant.

2. The anti-deformation and high-gloss textile fabric according to claim 1, characterized in that, The preparation method of the polyester composite fiber includes the following steps: Step 1: According to the weight parts, add polyester fiber chips, modified potassium titanate whiskers, antioxidant, and lubricant into a high-speed mixer, mix evenly, then feed them into a twin-screw extruder through a feed hopper, and prepare masterbatch through a melt extrusion process, and then spin the masterbatch through a melt spinning process to obtain a fiber preform; Step 2: Perform draw spinning on the fiber preform, and then carry out winding, shaping, bunch draw, and heat setting treatments.

3. The anti-deformation and high-gloss textile fabric according to claim 2, characterized in that, The preparation method of the modified potassium titanate whiskers includes the following steps: Step S1: Use a coupling agent to carry out organic modification on potassium hexatitanate whiskers to obtain organic potassium hexatitanate whiskers; Step S2: Using N,N-dimethylformamide as a reaction medium, under the action of a catalyst, first use 2,2-bis(4-hydroxyphenyl)adamantane to further modify the organic potassium hexatitanate whiskers, and then use halogen-terminated polysulfide rubber as a chain extender to carry out continuous chain extension polymerization reaction to obtain modified potassium titanate whiskers.

4. The anti-deformation and high-gloss textile fabric according to claim 3, characterized in that, In step S1, the coupling agent is 3-chloropropyltrimethoxysilane, 3-chloropropyltriethoxysilane or 3-bromopropyltrimethoxysilane.

5. The textile fabric with anti-deformation and high glossiness according to claim 3, characterized in that, In step S2, the catalyst is an aqueous sodium hydroxide solution or an aqueous potassium hydroxide solution.

6. The anti-deformation and high-gloss textile fabric according to claim 3, characterized in that, In step S2, the halogen-terminated polysulfide rubber is prepared by reacting liquid polysulfide rubber and haloalkyl isocyanate as raw materials under the catalytic action of a tin catalyst.

7. The anti-deformation and high-gloss textile fabric according to claim 6, characterized in that, The haloalkyl isocyanate is chloroethyl isocyanate or 3-chloropropyl isocyanate.

8. A textile fabric with anti-deformation and high gloss according to claim 6, characterized in that, The tin catalyst is any one of stannous octoate, dibutyltin dilaurate or dibutyltin diacetate.

9. The anti-deformation and high-gloss textile fabric according to claim 2, characterized in that The antioxidant is at least one of antioxidant 1010, antioxidant 168 or antioxidant 1076; the lubricant is polyethylene wax.

10. A preparation process of the anti-deformation and high-gloss textile fabric as described in claim 1, characterized in that, It includes the following steps: The first step: Twist 3-5 spandex filaments into a strand as the warp yarn; The second step: Twist 3-5 polyester composite fibers into a strand to make the weft yarn; The third step: Interlace and weave the warp yarns and weft yarns, and control the warp yarn density to be 25-30 strands / cm and the weft yarn density to be 20-25 strands / cm.