Crease-resistant suit fabric and processing technology thereof

Abstract

The invention relates to the technical field of western-style clothes processing, in particular to an anti-wrinkle western-style clothes fabric and a processing technology thereof.The anti-wrinkle western-style clothes fabric is prepared by finishing base cloth through finishing liquid, the base cloth is wool blended fabric, and the wool blended fabric comprises wool, polyester fibers, lyocell fibers, spandex and conductive fibers; the finishing liquid is prepared from the following raw materials in parts by weight: 1 to 4 parts of polyoxyethylene sorbitan monooleate, 0.1 to 1 part of cocamidopropyl betaine, 2 to 6 parts of a fiber protecting agent, 80 to 120 parts of carboxyl-terminated hyperbranched polyester, 40 to 60 parts of butanetetracarboxylic acid, 30 to 50 parts of poloxamer, 0.1 to 2 parts of a silane coupling agent, 2 to 4 parts of an aziridine cross-linking agent and 900 to 1100 parts of water; the fabric has the advantage that the crease resistance of the business suit fabric is improved.

Description

Technical Field

[0001] This application relates to the technical field of suit processing, and in particular to a wrinkle-resistant suit fabric and its processing technology. Background Technology

[0002] As people's living standards continue to improve, more and more companies require formal attire for work hours. Suits have also become essential for some important occasions. Therefore, high market demand has promoted the development of suits. Traditional business suits mostly use pure wool fabrics, which have the advantages of being thin, having a clear texture, a comfortable and soft feel, and being elastic. Moreover, they show virtually no wrinkles when squeezed and released, making them high-end suits with relatively high costs. Casual suit fabrics, however, are no longer limited to wool but incorporate cotton, linen, and silk materials. For example, using cotton / wool blended yarn as warp and cotton / XLA fiber core-spun yarn as weft, the process involves weaving, hot water treatment, cold water washing, and ironing to obtain a cotton-like base fabric. This base fabric undergoes soaping desizing, wrinkle-resistant finishing, and pressing to achieve the desired casual suit fabric. Casual suit fabrics not only significantly reduce costs but also retain the advantages of pure wool fabrics, such as a comfortable, soft feel and good elasticity. However, wool blends containing cotton and polyester fibers need to be ironed after washing to keep them smooth; but when worn, they can still wrinkle due to prolonged sitting or pressure, causing discomfort. Summary of the Invention

[0003] In order to improve the wrinkle resistance of suit fabrics, this application provides a wrinkle-resistant suit fabric and its processing technology.

[0004] In a first aspect, this application provides a wrinkle-resistant suit fabric, employing the following technical solution: A wrinkle-resistant suit fabric is obtained by treating a base fabric with a finishing solution. The base fabric is a wool blend fabric, which includes wool, polyester fiber, lyocell fiber, spandex and conductive fiber. The finishing solution comprises the following raw materials in parts by weight: 1-4 parts polyoxyethylene sorbitan monooleate, 0.1-1 parts cocamidopropyl betaine, 2-6 parts fiber protectant, 80-120 parts carboxyl-terminated hyperbranched polyester, 40-60 parts butanetetracarboxylic acid, 30-50 parts poloxamer, 0.1-2 parts silane coupling agent, 2-4 parts aziridine crosslinking agent, and 900-1100 parts water.

[0005] By adopting the above technical solution, and by preparing the finishing solution, polyoxyethylene sorbitan monooleate and cocamidopropyl betaine, as surfactants, can improve the solubility of each raw material in water and the wettability of the base fabric fibers. By compounding carboxyl-terminated hyperbranched polyester and butanetetracarboxylic acid, the carboxyl groups contained in both react chemically with the hydroxyl groups on the surface of the base fabric, thereby improving the wrinkle resistance of the base fabric. In addition, under the crosslinking of the crosslinking agent triethylenetetramine, carboxyl-terminated hyperbranched polyester, butanetetracarboxylic acid, and bi-hydroxyl-terminated polyether modified silicone oil, a film is formed on the surface of the base fabric fibers. This not only improves the wrinkle resistance of the base fabric, but also enhances the washability and durability of the wrinkle resistance, making the suit fabric more wearable.

[0006] Preferably, the end-carboxyl hyperbranched polyester is a long-chain aromatic hyperbranched polyester with an average molecular weight of 950-5700.

[0007] By adopting the above technical solution, if the molecular weight is too large, it is not easy to penetrate into the internal fibers of the base fabric, resulting in insufficient film formation; if the molecular weight is too low, the carboxyl content is low, the crosslinking effect is insufficient, and the film formation effect is insufficient; when the molecular weight of end-carboxyl hyperbranched polyester is within this range, it can play a better role.

[0008] Preferably, the average molecular weight of the poloxamer is in the range of 2200-11500.

[0009] By adopting the above technical solution, poloxamer, a polyoxyethylene-polyoxypropylene ether block copolymer, is a novel type of high-molecular-weight nonionic surfactant. When added to the finishing agent of this application, it was found to have excellent wetting properties on the base fabric fibers, solving the problem of difficult wetting of fibers such as lyocell. This allows butanetetracarboxylic acid to interact with the internal fibers of the base fabric, thereby promoting the penetration of end-carboxyl hyperbranched polyester into the internal fibers, resulting in more complete film formation and significantly improving the wrinkle resistance of suit fabrics. Therefore, through its functional analysis, poloxamer with a molecular weight that is too low will have insufficient wetting properties, while a molecular weight that is too high will result in less penetration into the internal fibers of the base fabric and poor wetting properties. Therefore, its molecular weight should not be lower than 2200 or higher than 11500.

[0010] Preferably, the finishing liquid further includes 7-13 parts by weight of double-hydroxyl-terminated polyether modified silicone oil.

[0011] By adopting the above technical solution, when finishing the base fabric, it can act as a base fabric softener and also increase the number of hydroxyl groups on the surface of the base fabric. The hydroxyl groups can then participate in film formation, thereby improving the film's flexibility.

[0012] Preferably, the silane coupling agent is one or more of hydroxysilane coupling agents, aminosilane coupling agents, and epoxysilane coupling agents.

[0013] By adopting the above technical solution, this silane coupling agent can be adsorbed on the fiber surface and at the same time increase the active groups on the fiber surface, thereby participating in cross-linking and improving the film-forming properties of the fiber surface.

[0014] Preferably, the aziridine crosslinking agent is triethylenetetramine.

[0015] By adopting the above technical solution, the crosslinking reaction of triethylenetetramine is mild, the crosslinking network is more uniform, and the water resistance is good. When used for wrinkle resistance of wool blended fabrics, it can crosslink and form a film at a lower temperature, reducing high-temperature damage to the fabric.

[0016] Preferably, the mass percentage of each raw material in the wool blend fabric is as follows: polyester fiber 14-19%, lyocell fiber 8-12%, spandex 1-5%, conductive fiber 0.2-0.8%, and the balance is wool.

[0017] By adopting the above technical solution, this formula fabric can be used for suits. Wool and Lyocell fibers can improve the softness and comfort of the fabric, polyester fibers reduce shrinkage and wrinkles, reduce the need for frequent ironing, and are easy to care for, while conductive fibers can inhibit the accumulation of static electricity and reduce dust adsorption; the overall fabric is suitable for the production of wrinkle-resistant suits.

[0018] Secondly, this application provides a processing technology for wrinkle-resistant suit fabric, employing the following technical solution: A processing technique for wrinkle-resistant suit fabric includes the following steps: S1, Base Fabric Pretreatment Solution The base fabric is immersed in the pretreatment solution, treated with bubble vibration, removed and dehydrated with a liquid retention rate of 90-110%, then stacked for 10-15 hours, washed with water until neutral, and dried at a temperature below 70℃. S2, finishing solution for base fabric Polyoxyethylene sorbitan monooleate and cocamidopropyl betaine were added to water and stirred until dissolved. Then, double-hydroxyl-terminated polyether modified silicone oil, fiber protectant, carboxyl-terminated hyperbranched polyester, butanetetracarboxylic acid, poloxamer, silane coupling agent and crosslinking agent were added and stirred until dissolved to obtain the finishing solution. Immerse the pretreated base fabric in the finishing solution with a bath ratio of 1:(6-10), heat to 65-75℃, and treat with bubble oscillation for 10-30 minutes. Then remove the base fabric and let it stand to dehydrate. S3, Base Fabric Shaping Treatment The base fabric treated with the finishing solution is pre-shaped at a temperature of 120-140℃ and a speed of 25-35m / min. Then, the base fabric is left to stand at 90-110℃ for 20-40 minutes. Next, it is set at a temperature of 135-145℃ and a speed of 25-35m / min. After that, it is left to stand at 110-130℃ for 3-10 minutes and then cooled. S4, base fabric water wash The base fabric after shaping is washed, dehydrated, and dried to obtain wrinkle-resistant suit fabric.

[0019] By adopting the above technical solutions, this process achieves a dual breakthrough in wrinkle resistance and wearing comfort through the compatibility of various raw materials, synergistic physical-chemical treatment, and gradient temperature control technology, while also taking into account environmental protection and economy. The finishing solution design simplifies process steps while improving wrinkle resistance durability; the segmented setting process balances energy consumption and performance, is suitable for large-scale production, and allows for further cross-linking of the raw materials in the finishing agent during the setting process, improving wrinkle resistance; this process is particularly suitable for the production of high-end wrinkle-resistant suit fabrics, and can replace traditional high-chlorine bleaching and high-temperature baking processes, giving it significant market competitiveness.

[0020] Preferably, the pretreatment solution comprises the following raw materials in parts by weight: 30-45 parts of hydrogen peroxide (20-40% by weight), 15-25 parts of sodium hydroxide, 1-3 parts of alkyl glycoside, 1-4 parts of maleic acid-acrylic acid copolymer, and 90-1100 parts of water.

[0021] By adopting the above technical solution and limiting the selection and proportion of raw materials, the base fabric can be thoroughly degreased and cleaned, and the positive charge on the surface of the base fabric can be increased, thereby improving the electrostatic adsorption of carboxyl-containing molecules on the base fabric and enhancing the finishing effect of the finishing solution.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. By preparing the finishing solution, polyoxyethylene sorbitan monooleate and cocamidopropyl betaine, as surfactants, can improve the solubility of each raw material in water and the wettability of the base fabric fibers. By compounding carboxyl-terminated hyperbranched polyester and butanetetracarboxylic acid, the carboxyl groups contained in both react chemically with the hydroxyl groups on the surface of the base fabric, thereby improving the wrinkle resistance of the base fabric. In addition, under the crosslinking of the crosslinking agent triethylenetetramine, carboxyl-terminated hyperbranched polyester, butanetetracarboxylic acid, and bi-hydroxyl-terminated polyether modified silicone oil, a film is formed on the surface of the base fabric fibers. This not only improves the wrinkle resistance of the base fabric, but also enhances its washability and durability, making the suit fabric more wearable.

[0023] 2. The suit fabric prepared in this application has excellent wrinkle resistance and washability; its slow elastic wrinkle recovery angle can reach between 424-432°, and after 50 washes, it can still reach the range of 411-430°; at the same time, its rapid elastic wrinkle recovery angle can reach 421° and above, up to 431°, and after 50 washes, it can still reach the range of 409-428°. Detailed Implementation

[0024] The following provides a more detailed description of this application in conjunction with specific details.

[0025] raw material All raw materials used in the embodiments of this application are commercially available products. Among them, the product brand of the hydroxyl-terminated polyether modified silicone oil is BY16-201, and the brand is Dow Corning; the fatty alcohol polyoxyethylene ether is purchased from Guangzhou Nanjia Chemical Co., Ltd., and the model is AEO-3; the maleic acid acrylic copolymer is purchased from Shandong Wanhua Tianhe New Material Co., Ltd., and the model is WT-628; the polyoxyethylene sorbitan monooleate (Tween 80), cocamidopropyl betaine (CAB-35), and the carboxyl-terminated hyperbranched polyester are purchased from Wuhan Hyperbranched Resin Technology Co., Ltd. Example

[0026] Example 1 A wrinkle-resistant suit fabric is made by surface finishing a base fabric with a finishing agent. The base fabric is a wool blend fabric, and the yarn and base fabric have the same formula. The base fabric includes the following raw materials in the following weight percentages: 70% wool, 16.5% polyester fiber, 10% lyocell fiber, 3% spandex and 0.5% conductive fiber. The warp yarn count is 90 and the fineness is 20 denier. The weft yarn count is 80 and the fineness is 18 denier. The warp density is 140 ends / cm and the weft density is 110 ends / cm. The surface finishing methods for the base fabric are as follows: S1, Base Fabric Pretreatment Solution Add 40 kg of 35% hydrogen peroxide, 20 kg of sodium hydroxide, 0.8 kg of fatty alcohol polyoxyethylene ether, 1.5 kg of alkyl glycoside, and 2 kg of maleic acid acrylic copolymer to 1000 kg of water, and stir until dissolved to obtain a pretreatment solution; the alkyl glycoside is APG1214. The base fabric is immersed in the pretreatment solution, treated with bubble oscillation for 10 minutes, removed and dehydrated with a liquid retention rate of 100%, then stacked for 12 hours, washed with water until neutral, and dried at 60°C. S2, finishing solution for base fabric Add 3 kg of polyoxyethylene sorbitan monooleate and 0.5 kg of cocamidopropyl betaine to 1000 kg of water, stir to dissolve, then add 10 kg of hydroxyl-terminated polyether modified silicone oil, 5 kg of fiber protectant, 100 kg of carboxyl-terminated hyperbranched polyester, 50 kg of butanetetracarboxylic acid, 40 kg of poloxamer, 1 kg of 3-[bis(2-hydroxyethyl)amino]propanetriethoxysilane, and 3 kg of triethylenetetramine, and stir until dissolved to obtain the finishing solution; the carboxyl-terminated hyperbranched polyester is of type HyPerC302 with an average molecular weight of 2800; the poloxamer is of type F68 with an average molecular weight of 8350. The pretreated base fabric is immersed in the finishing solution with a bath ratio of 1:8, heated to 70°C, and treated with bubble oscillation for 20 minutes. The base fabric is then removed and allowed to stand to dehydrate until it no longer drips. S3, Base Fabric Shaping Treatment The base fabric treated with the finishing liquid is pre-shaped by a pre-setting machine at a temperature of 130℃ and a speed of 30m / min. Then the base fabric is left to stand at 100℃ for 30 minutes. It is then set by a setting machine at a temperature of 140℃ and a speed of 30m / min. After standing at 120℃ for 5 minutes, it is allowed to cool naturally. S4, base fabric water wash The base fabric after the shaping treatment is washed with water at a temperature of 50℃, and then the base fabric is dehydrated by a dehydrator and dried at 50℃ to obtain wrinkle-resistant suit fabric.

[0027] Example 2 A wrinkle-resistant suit fabric, which differs from Example 1 in that the S2 mid-terminal carboxyl hyperbranched polyester is of type HyPer C303 with a corresponding molecular weight of 5700, and the remaining steps are the same as in Example 1.

[0028] Example 3 A wrinkle-resistant suit fabric, which differs from Example 1 in that the S2 mid-terminal carboxyl hyperbranched polyester is of type HyPer C301 with a corresponding molecular weight of 950, and the remaining steps are the same as in Example 1.

[0029] Example 4 A wrinkle-resistant suit fabric, which differs from Example 1 in that the silane coupling agent in S2 is methyltrimethoxysilane, while the remaining steps are the same as in Example 1.

[0030] Example 5 A wrinkle-resistant suit fabric, which differs from Example 1 in that the poloxamer in S2 is of type L44, with a corresponding average molecular weight of 2200, while the other steps are the same as in Example 1.

[0031] Example 6 A wrinkle-resistant suit fabric, which differs from Example 1 in that the poloxamer in S2 is of type F127, with an average molecular weight of 11,500, while the other steps are the same as in Example 1.

[0032] Example 7 A wrinkle-resistant suit fabric differs from Example 1 in that its finishing solution does not contain double-terminated hydroxyl polyether modified silicone oil, while the remaining steps are the same as in Example 1.

[0033] Comparative Example Comparative Example 1 A wrinkle-resistant suit fabric differs from Example 1 in that the finishing solution uses an equal mass of butanetetracarboxylic acid instead of end-carboxyl hyperbranched polyester. The remaining steps are the same as in Example 1.

[0034] Comparative Example 2 A wrinkle-resistant suit fabric differs from Example 1 in that butanetetracarboxylic acid is replaced with an equal mass of end-carboxyl hyperbranched polyester in the finishing solution, while the remaining steps are the same as in Example 1.

[0035] Comparative Example 3 A wrinkle-resistant suit fabric, which differs from Example 1 in that its finishing solution does not contain poloxamer, while the other steps are the same as in Example 1.

[0036] Test Detection methods / test methods Suit fabrics were prepared according to the preparation methods of Examples 1-7 and Comparative Examples 1-3, and then tested according to the following tests. The test results are shown in Table 1.

[0037] Grade: Each suit fabric is tested and graded according to the testing indicators in the national standard GB / T26382-2011 Combed Wool Fabrics; Wrinkle resistance: The recovery angles of slow and rapid elastic folds were tested according to the test method in AATCC 66-2008 "Fabric Wrinkle Recovery: Recovery Angle Method". The recovery angles of slow and rapid elastic folds were also tested after the suit fabric was washed with water 50 times.

[0038] Table 1. Detection results of Examples 1-7 and Comparative Examples 1-3 As can be seen from Examples 1-7, Comparative Examples 1-3, and the test data in Table 1, the suit fabric prepared in this application has excellent wrinkle resistance and washability; its slow elastic wrinkle recovery angle can reach between 424-432°, and after 50 washes, it can still reach the range of 411-430°; at the same time, its rapid elastic wrinkle recovery angle can reach 421° and above, up to 431°, and after 50 washes, it can still reach the range of 409-428°.

[0039] This application pre-treats the base fabric to remove oil and increase the cationic content on the base fabric surface. Then, the finishing solution is formulated by adding polyoxyethylene sorbitan monooleate and cocamidopropyl betaine to improve the water solubility of the hydroxyl-terminated polyether modified silicone oil. During the finishing process, this oil acts as a softener for the base fabric and also increases the number of hydroxyl groups on the base fabric surface. A compound of carboxyl-terminated hyperbranched polyester and butanetetracarboxylic acid allows the carboxyl groups to react chemically with the hydroxyl groups on the base fabric surface, thereby improving the wrinkle resistance of the base fabric. Furthermore, under the crosslinking of the crosslinking agent triethylenetetramine, the carboxyl-terminated hyperbranched polyester, butanetetracarboxylic acid, and hydroxyl-terminated polyether modified silicone oil form a film on the surface of the base fabric fibers. This not only improves the wrinkle resistance of the base fabric but also enhances its washability and durability, making the suit fabric more wearable. The hydroxyl-terminated polyether modified silicone oil also improves the softness of the film formed on the surface of the base fabric fibers. The test data from Examples 1 and 7, as well as Comparative Examples 1-2, show that the anti-wrinkle performance of the suit fabric is better after compounding with terminal carboxyl groups and butanetetracarboxylic acid and adding bi-hydroxyl-terminated polyether modified silicone oil.

[0040] The test data from Examples 1-3 show that, based on the molecular weight of the end-carboxyl hyperbranched polyester, the wrinkle resistance data is optimal when the molecular weight is 2800. This is because if the molecular weight is too high, it is difficult for the polyester to penetrate the fibers inside the base fabric, resulting in insufficient film formation; conversely, if the molecular weight is too low, the carboxyl content is insufficient, leading to inadequate crosslinking and film formation.

[0041] The test data from Examples 1 and 5-6, as well as Comparative Example 3, show that, based on the molecular weight of poloxamer, a molecular weight of 8350 results in the best wrinkle-resistant effect for suit fabrics. Poloxamer is a polyoxyethylene-polyoxypropylene ether block copolymer, a novel type of high-molecular-weight nonionic surfactant. When added to the finishing agent of this application, it was found to have excellent wetting properties on the base fabric fibers, solving the problem of difficult wetting of fibers such as lyocell. This allows butanetetracarboxylic acid to interact with the internal fibers of the base fabric, thereby promoting the penetration of end-carboxyl hyperbranched polyester into the internal fibers, resulting in more complete film formation and significantly improving the wrinkle resistance of the suit fabric. Therefore, based on its effect analysis, if the molecular weight of poloxamer is too low, its wetting performance is insufficient; if the molecular weight is too high, the amount penetrating into the internal fibers of the base fabric is less, resulting in poor wetting performance. Therefore, its molecular weight should not be lower than 2200 or higher than 11500.

[0042] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An anti-wrinkle suiting fabric, characterized in that: It is made by finishing the base fabric with finishing liquid, the base fabric is wool blended fabric, the wool blended fabric includes wool, polyester fiber, lyocell fiber, spandex and conductive fiber; The finishing liquid includes raw materials in the following weight parts: polyoxyethylene sorbitan monooleate 1-4 parts, cocamide propyl betaine 0.1-1 part, fiber protective agent 2-6 parts, carboxyl-terminated hyperbranched polyester 80-120 parts, butane tetracarboxylic acid 40-60 parts, poloxamer 30-50 parts, silane coupling agent 0.1-2 parts, aziridine crosslinking agent 2-4 parts and water 900-1100 parts.

2. The anti-wrinkle suiting fabric according to claim 1, wherein: The carboxyl-terminated hyperbranched polyester is a long-chain aromatic hyperbranched polyester structure, and the average molecular weight is 950-5700.

3. The anti-wrinkle suiting fabric of claim 1 wherein: The average molecular weight of the poloxamer ranges from 2200 to 11500.

4. The wrinkle-resistant suiting fabric of claim 1 wherein: The finishing liquid also includes 7-13 parts by weight of double-end hydroxyl polyether modified silicone oil.

5. The wrinkle-resistant suiting fabric of claim 1 wherein: The silane coupling agent is one or more of hydroxyl silane coupling agent, amino silane coupling agent and epoxy silane coupling agent.

6. The wrinkle-resistant suiting fabric of claim 1 wherein: The aziridine crosslinking agent is triethylenetetramine.

7. The wrinkle-resistant suiting fabric of claim 1 wherein: The mass percentage of each raw material of the wool blended fabric is as follows: polyester fiber 14-19%, lyocell fiber 8-12%, spandex 1-5%, conductive fiber 0.2-0.8%, and the balance is wool.

8. A process for the manufacture of the anti-crease suiting fabric as claimed in any one of claims 1 to 7, characterized in that: It includes the following steps: S1, base fabric pretreatment liquid Soak the base fabric in the pretreatment liquid, after bubble oscillation treatment, take out and dehydrate, liquid retention rate 90-110%, then stack for 10-15h, wash to neutral, dry at a temperature below 70℃; S2, base fabric finishing liquid finishing Add polyoxyethylene sorbitan monooleate and cocamide propyl betaine in water, stir and dissolve, then add double-end hydroxyl polyether modified silicone oil, fiber protective agent, carboxyl-terminated hyperbranched polyester, butane tetracarboxylic acid, poloxamer, silane coupling agent and crosslinking agent, stir until dissolved, to prepare the finishing liquid; Soak the pretreated base fabric in the finishing liquid, bath ratio is 1: (6-10), heat to 65-75℃, bubble oscillation treatment for 10-30min, take out the base fabric and dehydrate; S3, base fabric setting treatment Pre-set the base fabric after finishing liquid finishing, temperature control at 120-140℃, speed 25-35m / min, then let the base fabric stand at 90-110℃ for 20-40min, then set it, control temperature at 135-145℃, speed 25-35m / min, then stand at 110-130℃ for 3-10min, then cool down; S4, base fabric washing Wash the set treated base fabric, dehydrate, dry, to prepare wrinkle-resistant suit fabric.

9. The processing technology of a wrinkle-resistant suit fabric according to claim 8, characterized in that: The pretreatment liquid includes raw materials in the following weight parts: 30-45 parts of 30-45 parts of hydrogen peroxide with a mass fraction of 20-40%, 15-25 parts of sodium hydroxide, 1-3 parts of alkyl glycoside, 1-4 parts of maleic acid-acrylic acid copolymer and 90-1100 parts of water.

Images