Wear-resistant composite flocking fabric and preparation method thereof

Abstract

This application relates to the field of composite fabric technology, and more specifically, to a wear-resistant composite flocked fabric and its preparation method. It is prepared by the following method: S1: Wear-resistant flocking adhesive is uniformly applied to a substrate to form an adhesive surface; S2: Flocking piles are placed on the adhesive surface, and electrostatic treatment is used to vertically disperse the flocking piles on the adhesive surface with a thickness ≤1mm, resulting in a semi-finished product; S3: The semi-finished product is dried, cured, cooled, brushed, and rolled up to obtain the wear-resistant composite flocked fabric. The wear-resistant flocking adhesive is composed of the following raw materials by weight percentage: 40-60% hyperbranched unsaturated resin, 2-8% tetramethyldivinyldisilazane, 8.5-15% cage-type polysilsesquioxane-trinorbornene isobutyl ester, 10-20% polyethylene glycol-diacrylate, 1-3% catalyst, 0.5-1% processing aid, and solvent to 100%. The wear-resistant composite flocked fabric obtained by the above method possesses both excellent wear resistance and durability.

Description

Technical Field

[0001] This application relates to the field of composite fabric technology, and more specifically, to a wear-resistant composite flocked fabric and its preparation method. Background Technology

[0002] Flocked fabric is a functional textile composite material made by firmly bonding chopped short fibers to a substrate surface in a vertically oriented state using a high-voltage electrostatic field. With its advantages of soft touch, full appearance, sound and heat insulation, and high-end texture, it is now widely used in various fields such as apparel fabrics, home furnishings, automotive interiors, high-end packaging, and industrial protection, and its market applications continue to expand. In various practical applications, the abrasion resistance of flocked fabric is crucial. It is a core technical indicator that determines product quality, service life, and application scope, and directly relates to the fabric's appearance integrity after long-term use.

[0003] Currently, in traditional flocking production processes, the industry's conventional methods for improving the abrasion resistance and shedding resistance of fabrics mainly focus on two directions. One is simply increasing the coating thickness of the adhesive layer or increasing the solid content of water-based adhesives, relying on the physical thickness of the adhesive layer to improve adhesion. The other is selecting conventional synthetic fibers such as nylon and polyester as flocking raw materials, relying on the inherent physical strength of the fibers to reduce breakage loss. In addition, some existing research has also attempted to improve interfacial adhesion by adding crosslinking agents to optimize the curing structure of the adhesive layer, and by subjecting the flocking to low-temperature plasma treatment or chemical modification.

[0004] However, the aforementioned conventional methods all have unavoidable technical drawbacks. On the one hand, excessive application of adhesive layers or increasing the solid content of the adhesive will directly lead to an increase in the hardness of the adhesive layer after curing, resulting in a stiff overall feel and reduced flexibility of the fabric. At the same time, excessive coverage of the adhesive layer will block the fiber pores of the substrate, significantly reducing the fabric's breathability, moisture permeability, and other comfort indicators, which violates the requirements for high-end fabrics. Typically, nylon or polyester flocking surfaces are chemically inert, and acrylic or polyurethane adhesives are used as flocking adhesives. Although these methods provide stable bonding, under long-term repeated friction and external pulling, the interface between the adhesive layer and the flocking layer is prone to delamination and peeling, ultimately leading to flocking loss and making it difficult to achieve a significant improvement in abrasion resistance. Therefore, solving the problems of easy shedding and poor abrasion resistance in flocked fabrics, while maintaining a relatively thin adhesive layer, remains a core technical bottleneck that the flocked fabric industry urgently needs to overcome. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides a wear-resistant composite flocked fabric and its preparation method.

[0006] Firstly, a method for preparing a wear-resistant composite flocked fabric, which is obtained by the following method: S1: Abrasion-resistant flocking adhesive is evenly applied to the substrate to form an adhesive surface; S2: Place the fluff onto the adhesive surface and treat it with static electricity to make the fluff vertically dispersed on the adhesive surface with a thickness of ≤1mm, thus obtaining a semi-finished product; S3: The semi-finished product is dried, cured, cooled, brushed, and rolled up to obtain a wear-resistant composite flocked fabric. The wear-resistant flocking adhesive is composed of the following raw materials by weight percentage: 40-60% hyperbranched unsaturated resin, 2-8% tetramethyldivinyldisilazane, 8.5-15% cage-type polysilsesquioxane-trinorbornene isobutyl ester, 10-20% polyethylene glycol-diacrylate, 1-3% catalyst, 0.5-1% processing aids, and solvent to make up to 100%.

[0007] The multi-component compounded abrasion-resistant flocking adhesive utilizes the synergistic effect of its core components. Hyperbranched unsaturated resin ensures uniform adhesive application and enhances the adhesion stability of the adhesive layer on the substrate. Tetramethyldivinyldisilazane constructs an interpenetrating network structure, building interfacial bonding bridges. Cage-type polysilsesquioxane-trinorbornene isobutyl ester enhances the abrasion resistance and other properties of the adhesive layer, filling micropores. Polyethylene glycol-diacrylate adjusts the adhesive viscosity, balancing the hardness and flexibility of the adhesive layer and improving hydrophilicity. The overall structure forms a composite adhesive layer with "three-dimensional interpenetrating network + inorganic hybrid reinforcement + multi-point interfacial anchoring," achieving strong bonding without thickening the adhesive layer, preventing flocking shedding, and producing a composite flocked fabric that combines high abrasion resistance, a soft feel, and good breathability.

[0008] Preferably, the processing aid is one or a combination of defoamers, dispersants, and thickeners.

[0009] Using one or more of defoamers, dispersants, and tackifiers as processing aids helps eliminate air bubbles during the preparation and use of abrasion-resistant flocking adhesive, ensuring uniform dispersion of adhesive components and increasing adhesive viscosity. This guarantees the quality and performance of the abrasion-resistant flocking adhesive, thereby improving the preparation effect of abrasion-resistant composite flocked fabrics. Simultaneously, by combining multi-component abrasion-resistant flocking adhesive with specific curing and flocking processes, the adhesive layer structure and interfacial bonding strength can be further optimized, balancing strong adhesion with fabric softness. This avoids localized excessive thickness and clumping of the adhesive layer, overall detachment and lifting, weakens the problem of poor interfacial compatibility between the flock and adhesive, improves the mechanical strength of the adhesive layer, blocks the flock detachment path, balances the hardness and flexibility of the adhesive layer, prevents the adhesive layer from hardening after curing, and balances the fabric's breathability and soft feel. It effectively prevents flock detachment and shedding under long-term friction, resulting in a composite flocked fabric with high abrasion resistance, soft feel, and good breathability.

[0010] Preferably, the fluff is activated modified fluff modified by an activating modifier, which is obtained by mixing an auxiliary agent, vinylbenzylaminoethylaminopropyltrimethoxysilane hydrochloride, ammonium persulfate, sulfonate betaine methacrylate, and a solvent.

[0011] Preferably, the weight ratio of the adjuvant, vinylbenzylaminoethylaminopropyltrimethoxysilane hydrochloride, sulfonate betaine methacrylate, ammonium persulfate, and solvent is (1-2):(1-3):(0.5-1):(2-5):100.

[0012] This application uses vinylbenzylaminoethylaminopropyltrimethoxysilane hydrochloride and sulfonate betaine methacrylate as the main activating components, which have better synergistic complementarity. In the electrostatic flocking process, it can promote dispersion, allowing the flock to disperse quickly and evenly vertically, avoiding problems such as flock lying down, tilting, unstable upright adhesion, and accumulation of adhesive on the surface, ensuring a smooth and efficient process. During the processing, its activating groups undergo an initial reaction to form an active coating film on the flock, which is beneficial for its even dispersion when shaken off. In the later stage of drying and curing in the oven, it further cures and cross-links, and can also undergo in-situ cross-linking polymerization with the wear-resistant adhesive system, forming a dense and flexible interpenetrating chemical cross-linking network at the root of the flock and the interface of the adhesive layer. This upgrades the flock and adhesive layer from physical wrapping and bonding to a dual fixing mode of physical anchoring + chemical bonding, which greatly improves the adhesion strength between the flock and the adhesive layer, solves the problems of flocked fabric shedding and showing the base layer, while retaining the soft hand feel and good breathability of the fabric. The resulting wear-resistant composite flocked fabric has a longer service life and a more stable appearance, making it widely applicable to high-requirement application scenarios such as clothing, home furnishings, and automotive interiors.

[0013] Preferably, the drying temperature is 150℃±10℃ and the baking time is 5-10min.

[0014] Controlling the adhesive layer thickness to ≤1mm avoids problems such as increased hardness, stiff fabric feel, decreased flexibility, and reduced breathability and moisture permeability caused by excessive adhesive coating after curing. It also ensures that the adhesive layer adheres tightly to the substrate and is not easily peeled off, allowing the roots of the flock to be firmly embedded in the cured adhesive layer. Controlling the drying temperature to 150℃±10℃ and the baking time to 5-10min allows the abrasion-resistant flocking adhesive to fully cure. Combined with the abrasion-resistant flocking adhesive and activated modified flock, a composite adhesive layer structure of "three-dimensional interpenetrating network + inorganic hybrid reinforcement + multi-point anchoring at the interface" is formed, achieving dual fixation of physical encapsulation and chemical bonding. This effectively avoids the problem of flock shedding and loss under long-term friction, ultimately producing a composite flocked fabric with high abrasion resistance, soft feel, and good breathability.

[0015] Preferably, the substrate is one of cotton fabric, polyester fabric, nylon fabric, and spandex fabric.

[0016] Wear-resistant composite flocked fabrics can be prepared using rayon, polyester, nylon, and spandex fabrics as base materials, expanding the range of base material choices to meet different application needs. The main component of this rayon fabric is viscose fiber.

[0017] Secondly, a wear-resistant composite flocked fabric includes a substrate layer, a flocked layer fixed to the substrate layer, and a pile layer fixed to the side of the flocked layer away from the substrate layer. The wear-resistant composite flocked fabric is obtained by a method for preparing a wear-resistant composite flocked fabric.

[0018] Abrasion-resistant composite flocked fabrics are prepared using specific methods. The abrasion-resistant flocking adhesive, prepared through a multi-component compounding system, optimizes the adhesive layer structure and interfacial bonding, balancing strong adhesion with fabric softness. This prevents overall adhesive layer detachment and curling, mitigates the poor interfacial compatibility between conventional flocking and adhesive, reduces adhesive layer wear, enhances the overall mechanical strength of the adhesive layer, blocks flocking detachment paths, balances adhesive layer hardness and flexibility, and ensures fabric breathability and a soft feel. This effectively prevents flocking and shedding under long-term friction. Processing aids can eliminate air bubbles and improve the raw material... Uniform dispersion and increased viscosity; the use of specific defoamers, dispersants, and tackifiers enhances their respective effects; the use of activated modified flocking fibers addresses the process defects and bonding shortcomings of traditional flocking fibers, achieving a gradient effect throughout the flocking process, improving the adhesion between the flocking fibers and the adhesive layer, and solving the industry problems of lint shedding and exposed substrate in flocked fabrics; controlling the weight ratio of each raw material ensures optimal synergistic effects; controlling the adhesive layer thickness, drying temperature, and baking time guarantees fabric quality; the use of rayon, polyester, nylon, and spandex fabrics as base materials meets diverse needs. The final fabric possesses high abrasion resistance, a soft hand feel, and good breathability, with a longer service life and more stable appearance, making it widely adaptable to demanding application scenarios.

[0019] In summary, this application includes at least one of the following beneficial technical effects: 1. A wear-resistant flocking adhesive is prepared using a multi-component compounding system. This adhesive consists of 40-60% hyperbranched unsaturated resin, 2-8% tetramethyldivinyldisilazane, 8.5-15% cage-type polysilsesquioxane-trinorbornene isobutyl ester, 10-20% polyethylene glycol-diacrylate, 1-3% catalyst, 0.5-1% processing aid, and solvent to make up 100%. Through the synergistic compounding of the four core components and specific curing and flocking processes, the adhesive layer structure and interfacial bonding are optimized, balancing strong adhesion with fabric softness, and avoiding problems such as excessive local thickness and clumping of the adhesive layer, as well as overall detachment and wear. 2. The modified system of activated and modified flock can precisely control the charge density and resistivity of the flock surface, so that the flock can be quickly and uniformly dispersed vertically, avoiding problems such as falling over, tilting, unstable vertical adhesion and accumulation of glue on the surface, thus ensuring flock uniformity and subsequent bonding stability. 3. During the drying and curing stage in the oven, the activated modified flock and the wear-resistant adhesive form a dual fixing mode of physical anchoring and chemical bonding, which greatly improves the adhesion between the flock and the adhesive layer and solves the problems of flocked fabric shedding and exposed base. Detailed Implementation

[0020] The present application will be further described in detail below with reference to the embodiments.

[0021] Partial ingredient descriptions: The manufacturer of hyperbranched unsaturated resin is Wuhan Hyperbranched Resin Technology Co., Ltd., and its model number is HyPerU102. Tetramethyldivinyldisilazane, CAS No. 7691-02-3; The molecular structure of cage-type polysilsesquioxane-trinorbornene isobutyl ester is as follows: ; The molecular structure of polyethylene glycol diacrylate is as follows, where n is 2-10: ; Vinylbenzylaminoethylaminopropyltrimethoxysilane hydrochloride, CAS No. 34937-00-3; Sulfonate betaine methacrylate: CAS No. 3637-26-1; The dispersant brand and model is BYK-163 from Germany; The defoamer brand and model is Efcona AFCONA-2791; Nylon fibers are produced from nylon 66 with a number average molecular weight (Mn) of 15,000-20,000.

[0022] Preparation Example

[0023] Preparation Example 1 A wear-resistant flocking adhesive is prepared by the following method: 1) Raw material pretreatment Solvent preparation: The solvent is ethyl acetate; The solvent is divided into three parts: the first part, 40 wt% of the total solvent, is used for pre-dispersion; the second part, 30 wt% of the total solvent, is used for dilution; and the third part, 30 wt%, is used for final viscosity adjustment.

[0024] Cage-type polysilsesquioxane pre-dispersion: Take the prescribed amount of cage-type polysilsesquioxane-trinorbornene isobutyl ester, add it to the first portion of solvent, and disperse it for 15 minutes under stirring at 200 r / min to obtain a uniform POSS pre-dispersion for later use.

[0025] Catalyst solution: Dissolve the prescribed amount of catalyst in a second portion of solvent to obtain a catalyst solution for later use.

[0026] 2) Main resin mixing The prescribed amount of hyperbranched unsaturated resin was added to a reactor, heated to 50°C, and stirred at 200 rpm. While stirring, the prescribed amount of polyethylene glycol-diacrylate was slowly added over a period of 10 minutes. After the addition was complete, stirring was continued for 15 minutes to ensure complete miscibility and obtain the main resin mixture.

[0027] 3) Grafting and dispersion of functional components The main resin mixture was kept at 50°C, and then the prescribed amount of tetramethyldivinyldisilazane was slowly added dropwise at a rate of 4 ml / min. After the addition was complete, the temperature was raised to 60°C and kept at that temperature for 30 minutes to obtain the pre-reactant.

[0028] 4) Slowly add the POSS pre-dispersion liquid prepared in step 1) to the above pre-reactant. After the addition is complete, increase the stirring speed to 400 r / min and disperse for 20 minutes to make the nano-sized POSS particles uniformly dispersed in the resin network, thus forming mixture A.

[0029] 5) Cool the mixture A to 30°C, add the catalyst solution, and control the dripping time to 5 minutes; then add the processing aid and continue stirring for 10 minutes; finally add the third part of solvent and stir continuously at 150 r / min for 20 minutes at 30°C. Stop stirring, filter through a 200-mesh filter, seal and package to obtain wear-resistant flocking adhesive.

[0030] The catalyst described above is composed of azobisisobutyronitrile and dibutyltin dilaurate in a weight ratio of 1:1. The processing aid is composed of a dispersant and a defoamer in a weight ratio of 1:1.

[0031] The specific amounts of the above-mentioned raw materials are detailed in Table 1.

[0032] Preparation Examples 2-3 The difference between Preparation Example 2-3 and Preparation Example 1 is that the amount of raw materials used is different, as shown in Table 1 below; Table 1. Raw material usage (by weight percentage) for Preparation Examples 1-3

[0033] Comparative Example of Preparation of Abrasion-Resistant Flocking Adhesive Preparation of Comparative Example 1: The difference from Preparation Example 1 is that tetramethyldivinyldisilazane is replaced in equal amounts with hyperbranched unsaturated resin.

[0034] Preparation Comparative Example 2: The difference from Preparation Example 1 is that the cage-type polysilsesquioxane-trinorbornene isobutyl ester is replaced with trinorbornene isobutyl ester in equal amounts.

[0035] Preparation of Comparative Example 3: The difference from Preparation Example 1 is that polyethylene glycol-diacrylate and hyperbranched unsaturated resin are replaced with ethyl acrylate in equal amounts.

[0036] Preparation example of active modifier Preparation Example 4 An active modifier is prepared by the following method: The solvent consists of water and anhydrous ethanol.

[0037] Step 1: Add vinylbenzylaminoethylaminopropyltrimethoxysilane hydrochloride, sulfonate betaine methacrylate and anhydrous ethanol-water mixture (volume ratio 4:6, accounting for 70wt% of the total solvent mass) to a reaction vessel, and stir at 150r / min for 10 minutes at 50℃ to obtain dispersion A.

[0038] Step 2: Add ammonium persulfate to water (30 wt% of the total solvent mass), stir and dilute at 40°C for 10 minutes to obtain dispersion B.

[0039] Step 3: Heat mixture A to 60°C, continue stirring, add dispersion B, add over 20 minutes, then continue stirring at 75°C for 2 hours, cool to 35°C, and filter through a 200-mesh filter to obtain the active modifier.

[0040] The weight ratio of the additives (the same as the processing aids in Preparation Example 1), vinylbenzylaminoethylaminopropyltrimethoxysilane hydrochloride, sulfonate betaine methacrylate, ammonium persulfate, and solvent is 2:1:2:0.3:100.

[0041] Preparation Example 5 The difference between Preparation Example 5 and Preparation Example 4 is that the weight ratio of the additive, vinylbenzylaminoethylaminopropyltrimethoxysilane hydrochloride, sulfonate betaine methacrylate, ammonium persulfate, and solvent is 1.5:0.8:3:0.2:100.

[0042] Preparation Example 6 The difference between Preparation Example 6 and Preparation Example 4 is that the weight ratio of the additive, vinylbenzylaminoethylaminopropyltrimethoxysilane hydrochloride, sulfonate betaine methacrylate, ammonium persulfate, and solvent is 1.5:0.5:5:0.1:100.

[0043] Preparation of comparative examples Preparation of Comparative Example 1: The difference from Preparation Example 4 is that vinylbenzylaminoethylaminopropyltrimethoxysilane hydrochloride is replaced by an equal amount of sulfonate betaine methacrylate. Example Example

[0044] A method for preparing a wear-resistant composite flocked fabric, comprising the following steps: S1: Adhesive coating process The abrasion-resistant flocking adhesive obtained in Preparation Example 1 was uniformly coated onto a substrate (rayon fabric, 100 g / m²) using a gravure coating method. 2 The coating is applied to the surface to form a continuous and uniform adhesive surface. The coating temperature is 25℃ and the coating linear speed is 20m / min, forming an adhesive surface with a thickness of 1mm on the substrate surface.

[0045] S2: Electrostatic flocking process The flocking material (nylon flocking, 1.5D×0.5mm) is loaded into the flocking hopper and evenly spread onto the rubber surface by gravity shedding, with a flocking amount of 80g / m². 2 At the same time, an electrostatic field voltage of 40kV and an electrostatic field frequency of 50Hz are applied. The electrostatic adsorption effect is used to make the flocking fibers vertically and directionally dispersed and implanted into the glue layer to obtain the flocking semi-finished product. The relative humidity of the flocking environment is controlled at 60%, and the flocking time is 10 seconds to ensure that the flocking depth is consistent.

[0046] S3: Post-curing finishing process The flocked semi-finished product is then subjected to drying, curing, cooling, brushing, and rolling processes in sequence: Drying and curing: Temperature 150℃, time 5min, to allow the adhesive to fully cross-link and cure, achieving a high-strength bond between the pile and the substrate; Cooling: Cooled to room temperature (30°C) by water-cooled rollers; Brush bristles: A rotating brush roller is used to remove loose fibers and straighten the fibers, with a brush speed of 300 r / min; Rewinding: 10 N tension rewinding to obtain the finished wear-resistant composite flocked fabric.

[0047] Example 2

[0048] The difference between Example 2 and Example 1 is that the wear-resistant flocking adhesive obtained in Example 2 is used.

[0049] Example 3

[0050] The difference between Example 3 and Example 1 is that the wear-resistant flocking adhesive obtained in Example 3 is used.

[0051] Example 4

[0052] The difference between Example 4 and Example 2 is that the fibers are activated modified fibers modified by an activating modifier. The specific process is as follows: The 1.5D flock filaments were conveyed to a tank completely immersed in the activating modifier obtained in Preparation Example 4. The tank was 2 meters long and the temperature was 50°C. The stirring rate of the activating modifier was maintained at 60 r / min, and the conveying rate was 1 m / min. Then, the filaments were conveyed to an oven at the same speed. The oven temperature was 100°C and the length was 5 meters. The filaments were treated for a total of 5 minutes. At this state, the surface of the flock filaments was basically dry, and the vinylbenzylaminoethylaminopropyltrimethoxysilane hydrochloride and sulfonate betaine methacrylate contained on the surface underwent a preliminary reaction. At this time, the reaction was not complete. The filaments were then sheared by a shearing device to obtain modified flock. In the drying and curing process (temperature 150°C, time 5 min) of step 3) in the preparation method of wear-resistant composite flocked fabric, the modified flock will react more thoroughly. The final modified flock will be stably bonded to the flocked layer, reducing the possibility of shedding.

[0053] Example 5

[0054] The difference between Example 5 and Example 4 is that the activating modifier obtained in Preparation Example 5 is used.

[0055] Example 6

[0056] The difference between Example 6 and Example 4 is that the activating modifier obtained in Preparation Example 6 is used.

[0057] Example 7

[0058] The difference between Example 7 and Example 4 is that the activating modifier obtained in Comparative Example 1 was used.

[0059] Comparative Example

[0060] Comparative Example 1 The difference between Comparative Example 1 and Example 1 is that the wear-resistant flocking adhesive was prepared using Comparative Example 1.

[0061] Comparative Example 2 The difference between Comparative Example 2 and Example 1 is that the wear-resistant flocking adhesive was prepared using Comparative Example 2.

[0062] Comparative Example 3 The difference between Comparative Example 3 and Example 1 is that the wear-resistant flocking adhesive was prepared using Comparative Example 3.

[0063] Detection methods The abrasion-resistant composite flocked fabrics obtained in Examples 1-7 and Comparative Examples 1-3 were used for the following experimental tests.

[0064] 1. Fluff adhesion Standard basis: T / CNTAC 22-2018 Test method for shedding of pile fabrics Instruments: Standard acrylic pressure-sensitive tape (25 mm wide, peel strength 5.0 N / cm) ; Rolling roller (2 kg); Analytical balance (accuracy 0.0001 g).

[0065] The detection steps are as follows: Smoothly attach the tape to the suede surface → Roll it 3 times, peel it off uniformly at 180°, and weigh the weight gain of the tape (Δm); The amount of lint adhered to the tape = Δm = m1 - m0; Δm: The amount of lint adhered to the tape, unit g; m0: The blank weight of the tape; m1: The total weight of the tape after peeling.

[0066] When the amount of lint adhered to the tape ≤ 0.003 g / 25 mm × 10 mm, and there is no bundle of lint falling off visually, it is recorded as qualified.

[0067] 2. Washing lint shedding method Standard basis: GB / T 21195-2023 Determination of lint shedding from textile fabrics - Washing method.

[0068] Instruments: Colorfastness washing machine + 50 stainless steel beads; Filter membrane (pore size 45 μm) + Vacuum filtration device.

[0069] Conditions: Water at 40 °C, wash for 45 min, rotation speed 50 r / min, filter the washing liquid → Dry the filter membrane → Weigh; Qualified index; The washing lint shedding rate ≤ 1.0%, recorded as qualified.

[0070] 3. Abrasion resistance Using the Martindale abrasion method, standard basis: GB / T 21196.2-2007 Instruments: Martindale abrasion tester; Standard abrasive (wool abrasive cloth); Weighing balance; Specimens; Diameter 38 mm, 3 parallel specimens; Pressure: 12 kPa; Abrasive: Standard wool cloth.

[0071] The number of abrasion cycles is 20,000 times, rubbing the side with lint.

[0072] Weight loss rate (%) = [(Weight before test - Weight after test) / Weight before test] × 100%.

[0073] 4. Adhesion fastness of flocking layer Detection standard reference: ASTM D903; Instruments: Universal testing machine; Specimens: 5 cm wide, 10 cm long; The opening gap between the substrate layer and the flocking layer is 2 cm. During detection, the clamps of the universal testing machine are respectively clamped on the substrate layer and the flocking layer at the opening gap; Peel at 180°, speed 100 mm / min.

[0074] The above experiments are all averaged, as shown in Table 2 specifically; Table 2 Experimental data of Examples 1-7 and Comparative Examples 1-3

[0075] Based on Example 1 and Comparative Examples 1-3, and referring to Table 2, it can be seen that in terms of flock adhesion, the amount of lint adhering to the tape in Comparative Examples 1-3 is unqualified, while that in Example 1 is qualified (lint adhering to the tape ≤ 0.003g / 25mm×100mm). The washing lint shedding rates of Comparative Examples 1-3 are 2.12%, 1.98%, and 1.78%, respectively, all higher than the washing lint shedding rate of ≤1.0% in Example 1. Furthermore, the weight loss of Comparative Examples 1-3 is all above 3%, while that of Example 1 is only 1.81%. In terms of flock layer adhesion strength, the peeling force of Comparative Examples 1-3 is lower than that of Example 1. The peel strength of Example 1, therefore, shows that the abrasion-resistant flocking adhesive of this application is composed of the following raw materials by weight percentage: 40-60% hyperbranched unsaturated resin, 2-8% tetramethyldivinyldisilazane, 8.5-15% cage-type polysilsesquioxane-trinorbornene isobutyl ester, 10-20% polyethylene glycol-diacrylate, 1-3% catalyst, 0.5-1% processing aids, and solvent to make up to 100%. The interaction between these raw materials further improves the flock adhesion stability, water-resistant washability, and abrasion-resistant and anti-shedding properties of the final abrasion-resistant composite flocked fabric, thereby enhancing its durability.

[0076] Comparing Examples 2 and 4, it can be seen that the mass loss rate of Example 4 is lower than that of Example 2, and the peel strength of Example 4 is higher than that of Example 2. This indicates that Example 4 uses an active modifier obtained by mixing vinylbenzylaminoethylaminopropyltrimethoxysilane hydrochloride, ammonium persulfate, sulfonate betaine methacrylate, and solvent, and then treats the flocking. The resulting modified flocking has better activity, which not only facilitates the erection of straight flocking, but also allows it to adhere stably to the flocking layer after complete curing, reducing phenomena such as detachment and wear.

[0077] This specific embodiment is merely an explanation of this application and is not intended to limit it. 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 fall within the scope of the claims of this application.

Claims

1. A method for preparing a wear-resistant composite flocking fabric, characterized in that, It is prepared by the following method: S1: Abrasion-resistant flocking adhesive is evenly applied to the substrate to form an adhesive surface; S2: Place the fluff onto the adhesive surface and treat it with static electricity to make the fluff vertically dispersed on the adhesive surface with a thickness of ≤1mm, thus obtaining a semi-finished product; S3: The semi-finished product is dried, cured, cooled, brushed, and rolled up to obtain a wear-resistant composite flocked fabric. The wear-resistant flocking adhesive is composed of the following raw materials by weight percentage: 40-60% hyperbranched unsaturated resin, 2-8% tetramethyldivinyldisilazane, 8.5-15% cage-type polysilsesquioxane-trinorbornene isobutyl ester, 10-20% polyethylene glycol-diacrylate, 1-3% catalyst, 0.5-1% processing aids, and solvent to make up to 100%.

2. A wear resistant composite tufted fabric according to claim 1, characterized in that: The processing aid is one or a combination of multiple defoamers, dispersants, and thickeners.

3. The wear-resistant composite flocked fabric according to claim 1, characterized in that: The fluff is an activated modified fluff modified by an activating modifier, which is obtained by mixing an auxiliary agent, vinylbenzylaminoethylaminopropyltrimethoxysilane hydrochloride, ammonium persulfate, sulfonate betaine methacrylate, and a solvent.

4. A wear resistant composite tufted fabric according to claim 3, characterized in that: The weight ratio of the adjuvant, vinylbenzylaminoethylaminopropyltrimethoxysilane hydrochloride, sulfonate betaine methacrylate, ammonium persulfate, and solvent is (1-2):(0.5-1):(2-5):(0.1-0.3):

100.

5. The abrasion resistant composite flocked fabric of claim 1, wherein: The drying temperature is 150℃±10℃, and the baking time is 5-10 minutes.

6. A wear resistant composite tufted fabric according to claim 1, characterized in that: The substrate is one of cotton fabric, polyester fabric, nylon fabric, and spandex fabric.

7. A wear-resistant composite type flocking fabric, comprising a base material layer, a flocking layer fixed to the base material layer, and a pile layer fixed to a side of the flocking layer away from the base material layer, characterized in that: The wear-resistant composite flocked fabric is obtained by the preparation method of the wear-resistant composite flocked fabric according to any one of claims 1-6.

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