Composite fiber, antifouling fabric and throw pillow

Abstract

The invention discloses a composite fiber, an antifouling fabric and a throw pillow, the composite fiber adopts a twisted yarn structure, and the composite fiber comprises an antifouling blend fiber filament and a hydrophobic modified PET fiber filament. The composite fiber provided by the invention is used for the throw pillow fabric, and aims to solve the problem that the traditional throw pillow fabric is insufficient in antifouling property. The composite fiber is composed of antifouling blend fiber filaments and hydrophobic modified PET fiber filaments. The antifouling blended fiber filaments can effectively reduce dirt attachment. And the hydrophobic modified PET fibers endow the fabric with hydrophobic characteristics, so that water and oil liquids are not easy to permeate, and the anti-fouling performance of the fabric is remarkably improved. The anti-fouling performance is based on the functional characteristics of the yarn instead of later fabric coating treatment, and the technology has a more lasting anti-fouling effect and is not easy to wear due to friction or washing.

Description

Technical Field

[0001] The invention relates to the technical field of high-performance composite fibers, and in particular to a composite fiber, an antifouling fabric, and a pillow. Background Art

[0002] Pillows can protect human body parts and keep warm. They can also be used as cushions or seat cushions to improve comfort. With the improvement of people's living standards, pillows have become an indispensable necessity for home life and office spaces as a household item. At present, most traditional pillows on the market are basically square or rectangular in shape, with a single purpose, simple shape, and similar styles. Holding them in your arms can keep you warm and provide a certain degree of protection, and also give people a warm feeling. Now they have gradually become common accessories for home use and decoration.

[0003] The Chinese utility model with publication number CN214927728U discloses a super soft and easy-to-decontaminate printed pillow fabric, which relates to the field of textile fabrics, including a base fabric layer, one side of the base fabric layer is bonded with an adsorption layer by an adhesive, and the side of the adsorption layer away from the base fabric layer is bonded with a protective layer. The utility model embeds a silica gel block on the protective layer, and the protective layer is a water- and oil-repellent fabric, so that the surface of the fabric can repel and alienate oil and water liquid media, thereby ensuring air permeability and improving the anti-fouling performance of the fabric.

[0004] However, the current water- and oil-repellent fabrics achieve anti-fouling properties through surface coatings, but these coatings are easily worn out due to external forces such as friction and washing during long-term use, resulting in a decrease in anti-fouling performance. Summary of the invention

[0005] In order to overcome the above technical defects, the present invention provides a composite fiber, an antifouling fabric and a pillow.

[0006] In order to solve the above problems, the present invention is implemented according to the following technical solutions:

[0007] In a first aspect, the present invention provides a composite fiber for weaving textile fabrics for pillows, wherein the composite fiber adopts a twisted yarn structure and comprises antifouling blended fiber filaments and hydrophobically modified PET fiber filaments.

[0008] Preferably, the anti-fouling blended fiber filaments are prepared by blending PA6 chips and polyamide-based chips through a melt spinning process.

[0009] Preferably, the hydrophobically modified PET fiber filament is prepared by loading polydimethylsiloxane and nano-titanium dioxide on the fiber surface.

[0010] Preferably, the composite fiber is 3 strands of antifouling blended fiber filaments, 1 strand of hydrophobically modified PET fiber filament, 1 strand of antibacterial fiber filament, and 2 strands of polyethylene fiber filaments twisted in the same direction on the aramid fiber filament.

[0011] Preferably, the product specification of the antibacterial fiber filament is 50tex / 48f, and the antibacterial fiber filament is made by spinning polyacrylonitrile fiber containing nano copper and zinc oxide.

[0012] Preferably, the product specification of the polyethylene fiber filament is 22.22tex / 198f.

[0013] Preferably, the aramid fiber filaments are CNT-modified aramid fiber filaments, and the product specification of the aramid fiber filaments is 131.11tex / 667f.

[0014] In a second aspect, the present invention provides an antifouling fabric, which is woven from the composite fiber described in the first aspect.

[0015] Preferably, the antifouling fabric adopts a warp knitted structure.

[0016] In a third aspect, the present invention further provides a pillow, comprising a textile fabric and a filler filled in the textile fabric, wherein the textile fabric is made of the antifouling fabric described in the second aspect.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The invention provides a composite fiber, which adopts a twisted yarn structure and comprises antifouling blended fiber filaments and hydrophobically modified PET fiber filaments.

[0019] The composite fiber provided by the present invention is used for pillow fabrics, aiming to solve the problem of insufficient anti-fouling performance of traditional pillow fabrics. The composite fiber is composed of anti-fouling blended fiber filaments and hydrophobically modified PET fiber filaments. The anti-fouling blended fiber filaments can effectively reduce the adhesion of dirt. The hydrophobically modified PET fiber gives the fabric hydrophobic properties, making it difficult for water and oil liquids to penetrate, thereby significantly improving the anti-fouling performance of the fabric. The anti-fouling performance is based on the functional characteristics of the yarn itself, rather than the subsequent fabric coating treatment. This technology has a more lasting anti-fouling effect and is not easily worn due to friction or washing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0021] Figure 1 The warp knitted structure of the antifouling fabric of the present invention;

[0022] Figure 2is a three-dimensional view of the pillow of the present invention;

[0023] Figure 3 is a front cross-sectional view of the pillow of the present invention;

[0024] Figure 4 is a side sectional view of one embodiment of the present invention;

[0025] Figure 5 It is a three-dimensional view of the metal spring clip in the pillow of the present invention.

[0026] In the figure: 10-pillow body, 20-storage cavity, 30-metal spring clip; 11-flexible filling cotton, 12-opening, 13-hand warmer pocket, 14-warming material layer; 21-first zipper, 22-storage bag, 23-second zipper; 31-elastic sheet, 32-connecting mechanism, 33-pin shaft, 34-connecting piece. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0028] Embodiment 1

[0029] like Figure 1-Figure 5 As shown, the preferred structure of the composite fiber, antifouling fabric and pillow described in the present invention.

[0030] The invention provides a composite fiber, which adopts a twisted yarn structure and comprises antifouling blended fiber filaments and hydrophobically modified PET fiber filaments.

[0031] The composite fiber provided by the present invention is used for pillow fabrics, aiming to solve the problem of insufficient anti-fouling performance of traditional pillow fabrics. The composite fiber is composed of anti-fouling blended fiber filaments and hydrophobically modified PET fiber filaments. The anti-fouling blended fiber filaments can effectively reduce the adhesion of dirt. The hydrophobically modified PET fiber gives the fabric hydrophobic properties, making it difficult for water and oil liquids to penetrate, thereby significantly improving the anti-fouling performance of the fabric. The anti-fouling performance is based on the functional characteristics of the yarn itself, rather than the subsequent fabric coating treatment. This technology has a more lasting anti-fouling effect and is not easily worn due to friction or washing.

[0032] In a specific implementation, the composite fiber of the present invention is 3 strands of antifouling blended fiber filaments, 1 strand of hydrophobically modified PET fiber filament, 1 strand of antibacterial fiber filament, and 2 strands of polyethylene fiber filaments twisted in the same direction on the aramid fiber filament.

[0033] The twisting process can significantly improve the performance of composite fibers: twisting increases the cohesion between fibers and improves the overall strength of the yarn. The twisted fibers have better flexibility and elasticity, which can improve the comfort of the pillow. By twisting, multiple functional fibers are combined together to achieve the integration of multiple functions such as antifouling, antibacterial, and hydrophobic.

[0034] For common natural fibers or single fibers, their wear resistance is not good. This is why some synthetic fibers with better performance can be introduced to improve the performance of fabrics by combining the strengths of the two fibers. To this end, the composite fiber of the present invention combines the excellent wear resistance and impact resistance of polyethylene fiber and aramid fiber, can effectively resist external friction and impact, extend the service life of the composite fiber, and achieve excellent wear resistance. At the same time, the softness and comfort of the composite fiber will not be affected by high performance requirements.

[0035] In this field, twisting is a common yarn processing method. By twisting multiple fiber filaments in the same direction, the fibers can be tightly bound together. This structure can significantly improve the strength, wear resistance and fatigue resistance of the fiber. At the same time, twisting can also give the fiber a certain elasticity, so that it can better disperse stress when subjected to force and reduce local damage. This structure makes the arrangement between fibers more compact, enhancing the integrity and consistency of the fibers. The synergistic effect of multiple fibers can improve the comprehensive performance of the composite fiber.

[0036] The twisting process not only enhances the mechanical properties of the yarn, but also optimizes the antibacterial properties. Through twisting, the antibacterial fiber filaments and the kiwano fiber filaments are tightly wound around the aramid fiber filaments, making the antibacterial fibers more evenly distributed on the surface.

[0037] In the present invention, the antifouling blended fiber filament is prepared by blending PA6 chips and polyamide-based chips through a melt spinning process. Spinning-grade PA6 chips and PDMS (polyamide-based) chips are physically blended in a certain proportion, and then PA6 / PDMS blended fibers are prepared through a melt spinning process, and filaments are obtained after spinning.

[0038] Specifically, the product specification of the anti-fouling blended fiber filament is 60dtex / 48f, and the spinning process of the anti-fouling blended fiber filament is as follows:

[0039] (i) First, PA6 chips and PDMS masterbatch were dried at 100°C in a vacuum environment for 24 hours to remove moisture from the pellets. They were uniformly blended according to a certain formula ratio and poured into a twin-screw extruder. After melt extrusion and cooling and drying, PA6 / PDMS blended pellets were obtained. The length-to-diameter ratio of the twin-screw extruder was 16, and the capillary diameter was 5 mm. The amount of PDMS masterbatch added was 3.0% of the PA6 chips.

[0040] (ii) Add PA6 chips and PDMS blend into the hopper, blend them evenly through the spinning screw, and then enter the spinning assembly. By controlling the temperature of the screw in each zone, start it after reaching the set temperature, and start the pump supply of the metering pump to adjust the melt flow rate. The melt passes through the spinneret to form filaments. After a stable and uniform spinning fluid is formed, set the relevant spinning assembly to start spinning. The fluid filaments are cooled at the side blowing position in the pipeline, and after oiling, they are wound to obtain PA6 / PDMS primary fibers.

[0041] In the specific process, the screw temperature parameters are set to 265° in zone I, 270° in zone II, 265° in zone III, and 265° in zone IV. The metering pump temperature is 265°. The spinning assembly temperature is 264°. The spinneret is 0.3mm×68f. The spinning speed is 800m / min.

[0042] (III) Spinning

[0043] The nascent fibers are stretched to increase the crystallinity and orientation of the fibers, thereby enhancing their mechanical properties. The stretching process is usually carried out in a multi-stage stretching device, and the stretching multiple is adjusted according to the performance requirements of the fiber, generally between 3-5 times. The stretched fibers need to be heat-set to stabilize the size and performance of the fibers. The heat setting temperature is usually controlled between 180℃-220℃, and the treatment time is 1-3 minutes. This process can further improve the thermal stability and dimensional stability of the fibers. The set fibers are twisted by a twisting device to give the fibers better curl and elasticity. The twisting method can be selected from ring spinning or false twist texturing process, depending on the final use of the fiber.

[0044] Fiber fineness and mechanical properties test

[0045] The yarn length measuring instrument model YG086 of Changzhou Second Textile Instrument Factory was used to convert 100 meters of blended fiber to obtain the blended fiber limit. Each sample was tested three times and the average value was taken. The mechanical properties of PA6 / PDMS blended fiber filaments were tested using the XL-2 multifilament strength tester. Test conditions: clamping distance (mm): 250, stretching speed (mm / min): 50, pre-tension value (CN): 5, each sample was tested 15 times and the average value was taken.

[0046] The strength of PA6 / PDMS blended fiber filament is 3.8 cN / dtex, and the elongation at break is 88.36%.

[0047] Fabric anti-fouling performance test

[0048] PA6 / PDMS blended fiber filaments were used to make plain weave fabrics with warp and weft directions on a shuttle loom. According to the national standard GB / T 30159.1-2013 (Part 1), the fabrics were tested with water, dark soy sauce, light soy sauce, cola, oil and other common pollutants in life, and then rated according to the rating standards.

[0049] Level 1: The liquid completely wets the fabric surface; Level 2: The liquid mostly wets the fabric surface; Level 3: A small part of the fabric surface is wet; Level 4: The fabric surface is not wet, but there are water droplets on the surface; Level 5: The fabric surface is not wet, and there are no water droplets on the surface.

[0050] Plain fabrics can achieve the best level 5 anti-fouling performance for several common pollutants such as water, dark soy sauce, light soy sauce, and cola, that is, the pollutants do not penetrate or diffuse on the fabric surface within 30 seconds.

[0051] Fabric water contact angle test

[0052] The water contact angle of the blended fabric was measured using the OCA40Micro microscopic contact angle meter produced by Data Physics of Germany. Before the test, the prepared fabric was treated with acetone and distilled water, and then placed in a constant temperature and humidity dryer to ensure that the surface of the fabric was flat and wrinkle-free. The treated fabric was pasted on the sample table, the video focus was adjusted, and when the picture on the monitor was clear, a photo was taken to record the moment when the water drop fell on the fabric, and the experimental data was analyzed. The experiment was repeated 6 times for each sample and the average value was taken.

[0053] The left contact angle of the fabric is 112.5°, and the right contact angle is 111.8°. Water droplets can better maintain their integrity on the fabric, indicating that the addition of PDMS is beneficial to improving the water repellency of the blended fabric.

[0054] In the present invention, the hydrophobically modified PET fiber filament is prepared by loading polydimethylsiloxane and nano-titanium dioxide on the fiber surface. The hydrophobically modified PET fiber filament is 60D / 84F. The hydrophobically modified PET fiber filament is prepared by the following method:

[0055] (A) Pretreatment of PET filaments

[0056] First, the polyester fiber filaments were washed with deionized water for 3 to 5 times to remove impurities on the surface, and then ultrasonically cleaned with anhydrous ethanol for 30 minutes to remove organic matter on the surface, and then washed with deionized water for 3 to 5 times to remove excess anhydrous ethanol, and finally placed in a vacuum drying oven at 60°C for drying for use.

[0057] (II) Preparation of hydrophobically modified suspension

[0058] First, prepare a hydrophobic solution of PDMS:CH2Cl2=1:50, use a measuring cylinder to take 50mL of dichloromethane into a clean beaker, add 1mL of PDMS-A component and magnetically stir at 300r / min for 30min, then add 0.1mL of PDMS-B component and magnetically stir for 30min, add 0.5g of nano-titanium dioxide (25nm:100nm=1:1) and continue stirring for 2h to obtain a uniformly mixed hydrophobic modified solution.

[0059] (III) Modification of the hydrophobic surface of PET fiber filaments

[0060] The pretreated PET fiber filaments were placed in the hydrophobic modification solution for ultrasonication for 5 minutes, the ultrasonicated filaments were taken out and spread on a glass plate, dried at room temperature for 10 minutes, and then placed in a vacuum drying oven at 130° C. for 2 hours to obtain hydrophobically modified PET fiber filaments.

[0061] PET fiber filaments are used on shuttle looms to make plain fabrics with warp and weft directions. Tests have found that the fabric has good hydrophobic properties. The hydrophobic angle of the fabric surface is 142°. The fabric is immersed in methylene blue water solution, and the surface is still clean after being taken out, without any traces of dyeing, and has excellent self-cleaning and anti-fouling properties. Including self-cleaning ability in air and oil, good chemical resistance and excellent anti-fouling properties.

[0062] In the present invention, the product specification of the antibacterial fiber filament is 50tex / 48f, and the antibacterial fiber filament is made by spinning polyacrylonitrile fiber with nano copper and zinc oxide. The present invention disperses Cu-ZnONPs on polyacrylonitrile PAN through centrifugal-electrospinning technology to prepare antibacterial fiber Cu-ZnO / PAN. The specific implementation method is as follows:

[0063] (1) Preparation and synthesis of 5 wt% Cu-ZnO NPs by in situ reduction method: ZnO NPs (2.00 g) were ultrasonically dispersed in 50 ml of deionized water for 30 min to obtain a uniform ZnO NPs suspension, and CuCl2·2H2O (0.27 g) was weighed and dissolved in 50 ml of deionized water to obtain a CuCl2·2H2O solution. The three-necked flask containing ZnO NPs and CuCl2·2H2O solution was heated to 80°C in a magnetically stirred oil bath, and 50 mL of L-ascorbic acid aqueous solution (the molar ratio of CuCl2·2H2O: L-ascorbic acid was 1:4) was added dropwise into the flask while stirring. The mixed solution was refluxed and condensed at 80°C for 20 h to obtain a dark brown solution. The obtained product was washed several times with anhydrous ethanol and deionized water, then centrifuged and freeze-dried to obtain a 5 wt% Cu-ZnONPs composite antibacterial agent.

[0064] (2) Preparation of 10% PAN solution: Weigh 1.57 g PAN into a 20 ml sample bottle, add 15 ml DMF, and disperse by ultrasonic in an ultrasonic disperser. Finally, seal and stir magnetically for 24 h to obtain a transparent and uniform viscous solution.

[0065] (3) Weigh different masses of Cu-ZnO NPs composite antibacterial agent (the mass fraction of Cu-ZnO NPs is 3.8%), add them into a sample bottle containing 15 ml of DMF solution, seal it, and ultrasonically disperse it in an ultrasonic disperser for 30 min to obtain a uniformly dispersed solution. Pour 1.57 g of PAN into the above Cu-ZnO / DMF mixed solution, seal it with a sealing film and stir it magnetically for 24 h at room temperature to obtain a light yellow spinning solution.

[0066] (4) The spinning solution was spun by centrifugal-electrospinning technology, and the spinning parameters were as follows: spinning voltage was 12 kV, spinning speed was 3000 rpm, receiving distance was 11 cm, and spinning needle was 27 G. Cu-ZnO / PAN fiber was obtained. After spinning, cooling, oiling, drawing and shaping were performed, and finally the antibacterial fiber filament was wound.

[0067] Antibacterial fiber filament product experiment

[0068] (I) According to the antibacterial test method specified in GB / T 20944.3-2008 "Evaluation of antibacterial properties of textiles Part 3: Oscillation method", the antibacterial properties of antibacterial fiber filaments were evaluated by measuring the proliferation of bacterial colonies using the plate counting method.

[0069] After the antibacterial fiber filaments and bacteria were co-cultured for 18 hours, most of the bacteria had died, and the inhibition rate still reached more than 98%, indicating that the fiber has excellent antibacterial properties.

[0070] (ii) Refer to the simplified washing conditions and procedures in Appendix C of FZ / T 73023-2006 “Antibacterial Knitwear” and perform standard washing on the antibacterial fiber filament samples.

[0071] The bacterial proliferation before and after washing, the number of bacterial colonies in the sample did not increase significantly, and the antibacterial performance of the fiber did not show a significant downward trend with the increase in the number of washings. According to the colony counting method, the corresponding antibacterial rate was calculated. After the fiber was washed 50 times, the antibacterial rate still reached 97% and above, indicating that the antibacterial fiber filament has good washability.

[0072] In a preferred embodiment, the product specification of the polyethylene fiber filament is 22.22tex / 198f. The polyethylene fiber filament of the present invention belongs to ultra-high molecular weight polyethylene fiber (UHMWPE), which has extremely high strength and modulus. It has excellent impact resistance, cut resistance, high wear resistance, chemical corrosion resistance, good flexibility and low density. The flexibility of polyethylene fiber makes the composite fiber have good flexibility and fatigue resistance, can maintain integrity during repeated bending and stretching, and is suitable for application scenarios of textile products that require frequent deformation.

[0073] In the present invention, the product specification of the aramid fiber filament is 131.11tex / 667f. 131.11tex means that the weight of each 1000 meters of fiber is 131.11 grams. 667f means that the fiber is composed of 667 single filaments. This structure with a high number of single filaments can improve the overall strength and wear resistance of the fiber.

[0074] In a preferred implementation, the aramid fiber filaments are CNT-modified aramid fiber filaments.

[0075] CNT has extremely high strength and modulus. By combining with aramid fiber, the mechanical properties of the fiber can be significantly improved. For example, studies have shown that after CNT is combined with aramid nanofibers, the composite structure formed can effectively disperse stress and prevent premature fracture caused by stress concentration. In addition, the modified aramid fiber exhibits higher fracture strength and modulus during stretching. At the same time, the surface of aramid fiber originally lacks chemically active groups, resulting in low interfacial bonding strength with the matrix material. CNT modification can improve the overall performance of the composite material by increasing the active sites on the fiber surface and improving its wettability and interfacial bonding strength with the matrix material. The high aspect ratio and excellent mechanical properties of CNT enable it to be evenly dispersed in the composite fiber and effectively dissipate energy when subjected to external force. This modification method significantly improves the impact resistance and wear resistance of aramid fiber, making it more durable in high stress and high wear environments.

[0076] In a specific implementation, the aramid fiber filament is prepared by the following modification method:

[0077] (1) Cleaning:

[0078] The aramid fiber filaments were immersed in an acetone solution and subjected to ultrasonic treatment for 30 minutes; then rinsed with deionized water for 3-5 times, placed in a vacuum oven, vacuum dried at 60°C for 4 hours, taken out, and sealed for storage;

[0079] (2) Preparation of modified solution:

[0080] A Tris buffer reagent is prepared by using a dilute hydrochloric acid solution and tris(hydroxymethyl)aminomethane particles, and the Tris buffer is slowly added to a dopamine-HCL solution with a concentration of 2 g / L for multiple times, and the pH is adjusted to 8.5 to obtain a dopamine solution; then, 0.13% by mass of hydroxy carbon nanotube powder CNT is dissolved in anhydrous ethanol solution, and the mass ratio of the hydroxy carbon nanotube powder CNT to ethanol is 5:95, and after ultrasonic dispersion for 1-2 hours, the mixture is added to the dopamine solution, and the mixture is fully stirred and mixed to obtain a modified solution;

[0081] (3) Modification treatment:

[0082] The washed aramid fiber filaments are completely immersed in the modification solution, immersed at room temperature for 24 hours, and then rinsed with deionized water for 3-5 times; finally, dried in a vacuum oven at 60°C for 2 hours to obtain CNT-modified aramid fiber filaments.

[0083] 1. Experiment of aramid fiber filament

[0084] (1) Fiber surface morphology analysis: A Phenom desktop scanning electron microscope (SEM) was used to characterize the microscopic surface changes of a single aramid fiber before and after modification.

[0085] The dopamine solution is added with 0.13% CNT to modify the aramid fiber filaments. The carbon nanotubes doped in the dopamine coating on the fiber surface make the polydopamine coating densely cover the fiber, and the granular protrusions are reduced. Due to the addition of nanofillers, the oxidation self-polymerization of dopamine on the fiber surface is assisted and guided, so that the original polydopamine polymerization points are dispersed, and the coating is more uniform and dense.

[0086] (2) Yarn strength test: The yarn strength test refers to GB / T19975-2005 Test method for tensile properties of high-strength filament yarns, and the strength test is carried out on the aramid yarn before and after modification.

[0087] The tensile load of the modified aramid fiber is significantly higher than that of the unmodified aramid fiber. This is because the aramid fiber has a skin-core structure, and the main load-bearing part is the core layer. The dopamine coating is attached to the fiber surface, which does not affect the original mechanical structure of the aramid fiber, and forms a protective layer on the fiber surface, which disperses part of the load when tensile force is applied, thereby improving the fiber's load-bearing capacity. After CNT doping, the density of the coating is increased, and the coating area applied on the fiber surface is increased, so the tensile load that can be carried is significantly increased, and the overall strength of the aramid filament is increased. The maximum tensile load is increased by 38.57%.

[0088] (4) Fiber surface hydrophilicity test

[0089] The contact angle test was carried out using the insertion method. The fiber was suspended vertically and slowly inserted into a horizontal liquid surface to obtain the fiber surface contact angle and calculate the fiber surface free energy.

[0090] The surface contact angle of the unmodified aramid fiber is 95°, which is hydrophobic, the fiber surface is smooth and flat, and the surface free energy is low. After adding CNT, the contact angle of the fiber is significantly reduced and the surface free energy is increased, which proves that after doping with CNT, it is more conducive to the adhesion of the PDA coating on the fiber surface, the coating is more uniform and dense, the density of active groups is increased, and the wetting performance is significantly enhanced.

[0091] (5) Fiber extraction force test

[0092] Epoxy resin (GCC-135) and curing agent (GCC137) were mixed at a mass fraction of 100:30. The aramid fiber was inserted into a cylindrical tubular mold with a length of 1 mm, and the mixed resin was injected into the mold and cured for 24 hours to complete the single-filament extraction test sample of the aramid fiber.

[0093] Compared with the unmodified aramid fiber, the interface shear strength of the modified aramid fiber increased by 2.95%. The interfacial bonding performance between the fiber and the resin was significantly improved. This is because after the carbon nanotubes were introduced into dopamine, they acted as nanofillers to guide the dopamine to polymerize into a denser coating on the surface of the aramid fiber. The fiber surface was evenly coated, the active groups increased, and the connection sites between the fiber and the resin increased, forming a strong connection.

[0094] Based on the above composite fiber, the present invention also provides an antifouling fabric, which is woven from the composite fiber and has the properties of the above composite fiber.

[0095] On the other hand, due to the excellent antifouling, antibacterial, strength and wear resistance of the composite fiber, the fabric is not easy to wear in a high friction environment, the service life is significantly extended, and the antifouling effect is maintained for a long time. The synergistic effect of the polyethylene fiber and the CNT modified layer allows the fabric to be used repeatedly for a long time, extending its service life.

[0096] In a preferred embodiment, the antifouling fabric adopts a warp knitted structure. Figure 1 As shown in the figure, the warp knitted structure can increase the contact points between fibers through high-density coil arrangement, thereby improving the wear resistance of the fabric. Warp knitted fabrics have good elasticity and can adapt to complex movements and deformations while maintaining high wear resistance. On the other hand, the surface of the warp knitted structure is more uniform, which can better disperse friction and reduce local wear. Through the combination of specific organizational structures and yarns, the wear resistance of the fabric is synergistically improved to better maintain the anti-fouling performance of the fabric.

[0097] The present invention also provides a hugging pillow, which comprises a textile fabric and a filler filled in the textile fabric, wherein the textile fabric is made of the above-mentioned antifouling fabric.

[0098] Embodiment 2

[0099] The second embodiment provides a pillow, the textile fabric of which is made of the composite fiber in the first embodiment. Specifically, the pillow includes:

[0100] A pillow body 10, wherein a flexible filling cotton 11 is arranged inside the pillow body 10, openings 12 are symmetrically arranged on both sides of the pillow body 10, and the two openings 12 penetrate the pillow body 10 to form a hand-warming pocket 13;

[0101] A storage cavity 20, which is disposed on one side of the pillow body 10, and an outer edge of the storage cavity 20 is provided with a first zipper 21 for closing, and the storage cavity 20 has a plurality of storage bags 22 of different sizes, and the storage bags 22 include at least two partition spaces;

[0102] A plurality of metal spring clips 30 are disposed inside the pillow body 10 and arranged along the edges of the openings 12 on both sides. The metal spring clips 30 cooperate with the edges of the openings 12 to define the shape of the openings.

[0103] In this embodiment, the interior of the pillow body 10 is filled with flexible filling cotton 11, which is made of high-resilience material and has the characteristics of softness and good support. The openings 12 are symmetrically arranged on both sides of the pillow body 10, and the openings 12 penetrate the pillow body 10 to form a hand-warming pocket 13. The inner surface of the hand-warming pocket 13 is covered with a thermal insulation material layer to enhance the thermal insulation performance, so that it can provide a hand-warming function for the user in a cold environment. The storage cavity 20 is located on one side of the pillow body 10, and its outer edge is closed by a first zipper 21. A plurality of storage bags 22 of different sizes are arranged inside the storage cavity 20, and the separation space of the storage bag 22 is separated by elastic stitches, which is suitable for storing daily necessities such as shawl blankets and eye masks, and can also place small electronic devices such as headphones, mobile phone charging cables, shawl blankets and eye masks. Small items. The zipper design is easy to open and close to ensure the safe storage of items. A plurality of metal spring clips 30 are arranged inside the pillow body 10 and are arranged along the edge of the opening 12. The metal spring clip 30 defines the shape of the opening 12 through its own elasticity, keeps it stable, and provides a tight closure effect to reduce heat loss in the hand warmer pocket. The metal spring clip design makes the shape of the opening stable and reliable, making it convenient for the user to put his hand into the hand warmer pocket.

[0104] Implementation example Figure 4 As shown, preferably, the metal spring clip 30 includes two elastic sheets 31 , and two ends of the two elastic sheets 31 are connected by a connecting mechanism 32 .

[0105] The metal spring clip 30 includes two elastic sheets 31, and the two ends of the two elastic sheets 31 are connected by a connecting mechanism 32 to form a closed ring structure. The connecting mechanism 32 can be fixed by threading, welding or clamping to ensure that the elastic sheets 31 remain stably connected during use. The closed ring structure of the spring clip enables it to apply pressure evenly, avoiding excessive pressure on the user, and is convenient for the user to use.

[0106] In an optional embodiment of the present embodiment, the connection mechanism 32 adopts a plug-in structure, and the two ends of the elastic sheet 31 are respectively provided with a plug-in slot and a plug-in end, which are connected by plugging. This design makes the assembly of the metal spring clip 30 easier, and it is also convenient to disassemble and replace the elastic sheet 31.

[0107] In this embodiment, specifically, the connecting mechanism 32 includes a pin shaft 33 and a connecting member 34 , the connecting member 34 is fixedly connected to the end of the elastic sheet 31 , a mounting portion for mounting the pin shaft is provided on the connecting member 34 , and the opposite ends of the two elastic sheets 31 are connected through the pin shaft 33 .

[0108] It is understandable that the connection mechanism 32 includes a pin shaft 33 and a connection piece 34, and the connection piece 34 is fixedly connected to the end of the elastic sheet 31 by welding or threaded connection. The structure of the connection piece 34 is designed to have an annular groove at one end and a mounting portion at the other end, and the mounting portion has a hole groove adapted to the pin shaft 33. The pin shaft 33 passes through the mounting portion and connects the opposite ends of the two elastic sheets 31.

[0109] The pin 33 is installed by inserting it into the hole groove of the mounting portion, and the journals at both ends of the pin are larger than the diameter of the mounting portion to prevent the pin 33 from falling off. The two elastic sheets 31 are connected by rotation through the pin 33, and can rotate or bend to a certain extent when an external force is applied, so that the elastic sheet 31 has elasticity and mobility. This design allows the elastic sheet 31 to adjust its shape as needed and remain connected during use. The installation of the entire connecting mechanism 32 is very simple and can ensure a firm connection, ensuring that the elastic sheet 31 will not fall off or shift due to excessive external force during use.

[0110] Implementation example Figure 2 As shown, preferably, a thermal insulation material layer 14 is provided on the inner surface of the hand warmer pocket 13 , and the thermal insulation material layer 14 is sewn and fixed to the pillow body 10 .

[0111] In this embodiment, the inner surface of the hand warmer pocket 13 is provided with a thermal insulation material layer 14. The thermal insulation material layer 14 is optional, and a composite suede material with excellent thermal insulation performance is used to effectively keep the hands warm. In order to ensure that the thermal insulation material layer 14 does not shift or fall off during use, the thermal insulation material layer 14 is fixed to the inner surface of the pillow body 10 by sewing.

[0112] The edge of the thermal insulation material layer 14 is aligned with the inner edge of the hand warmer pocket 13, and through the sewing process, the entire inner surface is covered with the thermal insulation material to provide better warmth.

[0113] Implementation example Figure 3 As shown, preferably, the storage cavity 20 has an opening for replacing the filling cotton, and the opening is closed by a second zipper 23.

[0114] The storage cavity 20 is provided with an opening for replacing the filling cotton. The opening is located at the side of the storage cavity 20, and a second zipper 23 is provided at the edge of the opening. The zipper is made of plastic material, which is smooth and firm to open and close, and can ensure that it will not crack or deform during frequent use.

[0115] In order to facilitate users to replace the filling cotton 11, the size of the opening is designed to be wide enough so that users can easily take out the old filling cotton and put the new filling cotton into the pillow body 10 to prevent the filling cotton from being exposed or falling out from the inside of the pillow.

[0116] Preferably, the outer material of the pillow body 10 is waterproof and anti-fouling fabric, and the fabric and the flexible filling cotton 11 are fixed by stitching.

[0117] In this embodiment, the outer material of the pillow body 10 is a waterproof and stain-resistant fabric, which is made of high-density polyester or a fabric treated with a special coating, has good waterproof and stain-resistant properties, and can effectively prevent liquid penetration and stain adhesion. Even if it comes into contact with liquid or dust in daily use, it can be kept clean by simply wiping it.

[0118] To ensure the structural stability of the pillow body 10, the waterproof and anti-fouling fabric is fixed to the flexible filling cotton 11 by stitching. Optionally, the stitching adopts high-strength, wear-resistant nylon thread, and the sewing process is uniform and firm, which can ensure that the fabric and the filling cotton fit together without displacement or loosening.

[0119] Preferably, the elastic sheet 31 is made of stainless steel, and the surface is treated to prevent rust.

[0120] The elastic sheet 31 is made of stainless steel. Stainless steel has excellent elasticity and corrosion resistance, and can maintain good elastic deformation and durability in long-term use. In order to further improve its anti-corrosion performance, the surface of the elastic sheet 31 is treated with rust prevention, and the specific process includes spraying anti-rust paint on the surface or electroplating an anti-corrosion layer to ensure that the elastic sheet is not easy to rust in a humid environment.

[0121] To prevent the elastic sheet 31 from pinching the user's hand during use, the two ends of the elastic sheet 31 are designed to be arc-shaped, and the edges are polished to make them smooth and without sharp angles. Optionally, in this embodiment, a protective layer is provided between the elastic sheet 31 and the edge of the opening 12 when the elastic sheet 31 is installed. The protective layer is made of a flexible silicone material, which is coated on the outside of the elastic sheet 31 and fixed to the edge of the opening 12. The flexible protective layer not only prevents the user's hand from directly contacting the elastic sheet 31, but also increases friction, making the opening of the hand warmer pocket 13 more comfortable and easy to use.

[0122] Implementation example Figure 3 As shown, preferably, the partition space is divided by elastic stitching, and the size of the partition space is suitable for accommodating items of different sizes.

[0123] The size of the partition space can accommodate items of different sizes, such as shawls, blankets, eye masks and other personal items.

[0124] The shawl blanket is a functional item that goes with this pillow. It has a double-sided design: the front side is a warm-sensing side that is soft to the touch and has a warming property; the back side is a cold-sensing side that can quickly absorb and dissipate body surface heat, providing a cool touch. The shawl blanket achieves multi-functional conversion through a snap-on structure. The snaps are evenly distributed on the edge of the shawl blanket. Users can convert the shawl blanket into a shawl by snapping on the snaps, making it easy to wear when walking or doing outdoor activities.

[0125] The compartment of the storage cavity 20 includes an independent space specially designed for storing a shawl blanket, the size of which is adapted to the folded size of the shawl blanket to prevent the blanket from being squeezed, deformed or slipped when stored. Another compartment is used to store an eye mask, the size of which is adapted to the volume of the eye mask to ensure that the eye mask is not mixed with other items.

[0126] Implementation example Figure 1 As shown, preferably, the pillow body 10 is in a rectangular shape, and the openings 12 on both sides thereof are elliptical, and the long axis direction of the opening 12 is parallel to the long axis direction of the pillow body 10 .

[0127] The overall shape of the pillow body 10 is designed to be rectangular. The rectangular design is simple and beautiful, and can provide a larger support area for the user, which is suitable for various uses such as a backrest and a cushion. Openings 12 are respectively provided on both sides of the pillow body 10, and the shape of the openings 12 is designed to be elliptical. The long axis direction of the elliptical opening 12 is parallel to the long axis direction of the pillow body 10. This design makes the opening 12 more ergonomic when in use, and it is convenient for the user to insert both hands into the hand warming pockets 13 while keeping the wrists and arms in a natural posture.

[0128] Preferably, the edge of the pillow body 10 is provided with a stitching line for decoration, and the stitching line is distributed along the edge of the pillow body and fixed to the external material.

[0129] The edge of the pillow body 10 is provided with a decorative stitching line. The stitching line is evenly distributed along the outer edge of the pillow body 10, and its main function is to increase the decorative effect of the pillow, make the edge of the pillow smoother, and further enhance the fixation between the external material and the filling cotton 11.

[0130] In summary, the present invention realizes the versatility of the pillow by arranging flexible filling cotton 11 and hand-warming pockets 13 in the pillow body 10, and equipping it with a thermal insulation material layer 14, while designing a storage cavity 20 and a storage bag 22; the shape of the opening 12 is limited by a metal spring clip 30 to enhance the hand-warming function; the waterproof and anti-fouling properties of the external material of the pillow body, the design of the decorative stitching lines, and various structural optimizations further enhance the overall performance and user experience of the product.

[0131] The working principle of a multifunctional pillow of the present invention is as follows: a flexible filling cotton 11 is filled inside the pillow body 10 to provide soft and comfortable support. The openings 12 symmetrically arranged on both sides of the pillow body 10 penetrate the pillow body 10 to form a hand-warming pocket 13. The user can insert his hand into the opening 12 and keep his hand warm through the thermal insulation material layer 14 attached to the inner surface. The storage cavity 20 is located on one side of the pillow body 10, and the first zipper 21 is closed to ensure the safe storage of items in the storage cavity. The storage bag 22 separated inside the storage cavity 20 forms multiple separation spaces through elastic sutures, which is suitable for classified storage of items of different sizes, such as shawl blankets, eye masks and small electronic devices. The shawl blanket adopts a four-button structure and can be converted into a shawl form. The metal spring clip 30 is arranged inside the pillow body 10 and distributed along the edge of the opening 12. The elastic sheet 31 and the connecting mechanism 32 form a closed ring structure, which provides stable support for the opening 12, and has moderate elasticity and a tight closing effect, which not only avoids heat loss, but also facilitates the user's hand in and out operation. The surface of the elastic sheet 31 is treated with rust prevention, and is provided with an arc-shaped end and a flexible protective layer to prevent the user's hands from being pinched. The overall design enhances the durability and aesthetics of the pillow through the external waterproof and anti-fouling fabric and decorative stitching, so that it can not only be used as a cushion, but also has multiple functions such as warmth preservation, storage and decoration, meeting the diverse needs of users.

[0132] For other structures of the composite fiber, antifouling fabric, and pillow described in this embodiment, refer to the prior art.

[0133] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A composite fiber, characterized in that: The composite fiber adopts a twisted yarn structure, and the composite fiber comprises antifouling blended fiber filaments and hydrophobically modified PET fiber filaments.

2. A composite fiber according to claim 1, characterized in that: The antifouling blended fiber filaments are prepared by blending PA6 chips and polyamide-based chips through a melt spinning process.

3. A composite fiber according to claim 2, characterized in that: The hydrophobically modified PET fiber filaments are prepared by loading polydimethylsiloxane and nano-titanium dioxide on the fiber surface.

4. A composite fiber according to claim 3, characterized in that: The composite fiber is composed of three antifouling blended fiber filaments, one hydrophobically modified PET fiber filament, one antibacterial fiber filament and two polyethylene fiber filaments twisted in the same direction on the aramid fiber filament.

5. A composite fiber according to claim 1, characterized in that: The product specification of the antibacterial fiber filament is 50tex / 48f, and the antibacterial fiber filament is made by spinning polyacrylonitrile fiber containing nano copper and zinc oxide.

6. A composite fiber according to claim 1, characterized in that: The product specification of the polyethylene fiber filament is 22.22tex / 198f.

7. A composite fiber according to claim 1, characterized in that: The aramid fiber filaments are CNT-modified aramid fiber filaments, and the product specification of the aramid fiber filaments is 131.11tex / 667f. 8.An antifouling fabric, characterized in that: The antifouling fabric is woven from the composite fiber described in claim 7.

9. The antifouling fabric according to claim 8, characterized in that: The antifouling fabric adopts a warp knitted structure.

10. A pillow, characterized in that: The pillow comprises a textile fabric and a filler filled in the textile fabric, and the textile fabric is made of the antifouling fabric according to claim 9.

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