Multi-performance fabric manufacturing method and curtain fabric

Abstract

The invention relates to the technical field of textile, and discloses a multi-performance fabric manufacturing method and curtain cloth, the method comprises the following steps: preparing a composite fiber, the composite fiber comprises a flame-retardant skin layer and a shading core layer; spinning the composite fibers into yarns; weaving the yarns into a basic fabric; a phosphorus flame retardant permeates into the base fabric based on a padding method to obtain a padding fabric, and the concentration of the flame retardant on the surface of the padding fabric is measured; performing plasma cleaning on the padding fabric, and coating a nano TiO2 opacifying agent layer on the surface of the cleaned padding fabric based on a coating method to obtain a multi-performance fabric; wherein the adding amount of the TiO2 opacifying agent in the coating method is adjusted according to the concentration of the flame retardant on the surface of the padding fabric. According to the multi-performance fabric manufacturing method and the curtain cloth, the peeling strength of the shading layer of the fabric is stably improved, and meanwhile the requirements for flame retardance and shading performance of the fabric are met.

Description

Technical Field

[0001] The invention relates to the technical field of textiles, in particular to a method for manufacturing a multi-performance fabric and a curtain fabric. Background Art

[0002] Functional curtain fabrics are widely used in public areas such as hotels and theaters that have high requirements for safety and privacy, and are required to meet strict flame retardant and light-shielding properties. However, in the production process of this functional composite fabric, there is always a technical bottleneck that is difficult to coordinately optimize flame retardant and light-shielding properties. The root cause lies in the interface compatibility between flame retardants and light-shielding coatings.

[0003] The traditional process uses post-finishing to apply flame retardants to the fabric surface. In high temperature and high humidity environments, flame retardants are prone to migration and precipitation, seriously affecting the adhesion of subsequent light-shielding coatings. Test data show that fabrics manufactured using traditional processes are used as curtain fabrics, and the peel strength of their light-shielding coatings is often lower than 3N / cm. Quality problems such as light-shielding coating shedding and cracking are prone to occur during use. Summary of the invention

[0004] To this end, the purpose of the present invention is to overcome the difficulty of fabrics manufactured in the prior art in meeting both flame retardancy and light-shielding requirements, and to provide a multi-performance fabric manufacturing method and curtain fabric to stably improve the peeling strength of the fabric light-shielding layer while meeting the fabric flame retardancy and light-shielding requirements.

[0005] In a first aspect, in order to solve the above technical problems, the present invention provides a method for manufacturing a multi-performance fabric, comprising: preparing a composite fiber, the composite fiber comprising a flame retardant skin layer and a light-shielding core layer; Spinning the composite fiber into yarn; weaving the yarn into a base fabric; Infiltrating the phosphorus-based flame retardant into the base fabric based on a padding method to obtain a padded fabric, and measuring the flame retardant concentration on the surface of the padded fabric; Plasma cleaning of the padding fabric and coating of nano-TiO on the surface of the padding fabric after cleaning based on a coating method 2 A sunscreen layer to obtain a multi-performance fabric; Wherein, the TiO in the coating method is adjusted according to the flame retardant concentration on the surface of the padding fabric. 2 The amount of sunscreen added comprises: if the flame retardant concentration on the surface of the padding fabric is greater than the first target concentration, reducing the TiO 2 If the flame retardant concentration on the surface of the padded fabric is less than the first target concentration, increase the amount of TiO 2 The amount of sunscreen added.

[0006] In one embodiment of the present invention, the TiO in the coating process is adjusted based on the following method: 2 Amount of sunscreen added: ; C stands for TiO 2 The actual amount of sunscreen added; C 0 TiO 2 The reference addition amount of the sunscreen agent is 9.8~10.5g / L; K represents the first adjustment coefficient; R represents the measured value of the flame retardant concentration on the surface of the padding fabric; Indicates the first target concentration.

[0007] In one embodiment of the present invention, the first adjustment coefficient K is related to the yarn metric count S and satisfies the following relationship: ; It represents the reference adjustment coefficient, which is 0.21~0.24g / (L·%); Indicates the standard metric count, ranging from 38 to 42 meters / g.

[0008] In one embodiment of the present invention, the manufacturing method also includes detecting the flame retardant concentration on the surface of the yarn, and adjusting the amount of the phosphorus-based flame retardant added in the padding method according to the flame retardant concentration on the surface of the yarn; wherein, if the flame retardant concentration on the surface of the yarn is greater than the second target concentration, the amount of the phosphorus-based flame retardant added is reduced; if the flame retardant concentration on the surface of the padding fabric is less than the second target concentration, the amount of the phosphorus-based flame retardant added is increased.

[0009] In one embodiment of the present invention, the amount of the phosphorus-based flame retardant added in the padding method is adjusted based on the following method: ; Among them, C FR Indicates the amount of phosphorus flame retardant added; C FR 0 Indicates the standard addition amount of phosphorus flame retardant, which is 17.4~18.6g / L; Represents the second adjustment coefficient; R FR It indicates the flame retardant concentration measurement on the yarn surface; Indicates the second target concentration.

[0010] In one embodiment of the present invention, the spinning speed and weaving density are adjusted according to the flame retardant concentration on the yarn surface; wherein, if the flame retardant concentration on the yarn surface is greater than the second target concentration, the spinning speed is increased and the weaving density is reduced; if the flame retardant concentration on the yarn surface is less than the second target concentration, the spinning speed is reduced and the weaving density is increased.

[0011] In one embodiment of the present invention, the light-shielding core layer contains 8%-10% by mass of nano carbon black, the particle size of the nano carbon black is 30-50nm, and forms a dispersed phase with an average spacing of less than or equal to 150nm in the PET matrix.

[0012] In one embodiment of the present invention, the skin-to-core ratio of the flame retardant skin layer and the light-shielding core layer is (2.5-3.5):1.

[0013] In one embodiment of the present invention, the base fabric is a double-layer fabric, the surface layer of the double-layer fabric is twill, and the inner layer is satin.

[0014] In a second aspect, in order to solve the above technical problems, the present invention also provides a curtain fabric, which is made according to the multi-performance fabric manufacturing method.

[0015] The above technical solution of the present invention has the following beneficial effects compared with the prior art: The multi-performance fabric manufacturing method and curtain fabric described in the present invention can stably improve the peeling strength of the fabric shading layer through the synergistic effect of skin-core composite fibers, process optimization and intelligent regulation, while meeting the flame retardancy and shading requirements of the fabric.

[0016] Among them, the composite fiber structure of flame-retardant skin layer + light-shielding core layer physically isolates flame-retardant elements and light-shielding elements, reduces the direct contact between flame retardants and light-shielding agents in subsequent dyeing and finishing processes from the source, blocks the migration of flame retardants to the fiber surface, avoids the formation of a weak interface layer, and reduces the interference between flame retardant and light-shielding properties.

[0017] According to the flame retardant concentration of the padding fabric surface, the TiO 2 When the concentration of flame retardant is high, the amount of sunscreen added will reduce the amount of TiO 2 The amount of sunscreen added can reduce the interface incompatibility caused by flame retardant enrichment and avoid TiO 2 The accumulation of sunscreen agents at weak interfaces creates stress concentration, thereby increasing the peeling strength of the sunscreen layer and solving the problem of sunscreen coating shedding and cracking. 2 The amount of sunscreen added compensates for the decrease in sunscreen efficiency that may be caused by insufficient flame retardant, and at the same time, the active surface of TiO2 after plasma treatment is enhanced. 2 The bonding force also improves the peeling strength of the shading layer and increases the shading rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein: Figure 1It is a flow chart of a method for manufacturing a multi-performance fabric in a preferred embodiment of the present invention; Figure 2 The flowchart is for adjusting the addition amount of phosphorus-based flame retardant in the padding method in a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0020] The purpose of the embodiments of the present invention is to solve the problem of decreased peeling strength of the light-shielding layer caused by interface weakening due to surface enrichment of flame retardants, as well as the industry pain point that it is difficult to coordinately optimize the flame retardant and light-shielding properties of the fabric.

[0021] The inventors of this application have found through continuous research that the reason why the flame retardant and light-shielding properties of fabrics are difficult to optimize synergistically is that the commonly used PVC light-shielding coating is flammable. In order to compensate for the flammability of the light-shielding coating, it is necessary to increase the amount of flame retardant added. However, excessive flame retardant will reduce the adhesion of the light-shielding coating and the feel of the fabric, which is manifested as the migration or precipitation of flame retardants on the surface of the fabric, resulting in uneven surface concentration and the formation of a weak interface layer, which causes the adhesion of the light-shielding coating to decrease, and reduces the quality and stability of the light-shielding coating. Specifically, excessive flame retardant particles (particle size 1-5μm) will destroy the continuity of the light-shielding coating. SEM (Scanning Electron Microscopy) observations show that when the flame retardant content is >13wt% (mass percentage concentration 13%), the light-shielding coating will show obvious cracks (crack density increases by 320%). Chemical competition: phosphorus-based flame retardants and The surface hydroxyl groups compete for binding sites, and XPS (X-ray Photoelectron Spectroscopy) analysis shows that for every 1wt% increase in flame retardant concentration, the intensity of the Ti 2p characteristic peak decreases by 18% (Ti 2p is an important spectral peak used to analyze the chemical state of the titanium element in XPS analysis).

[0022] The role of flame retardants is to improve the fire resistance of fabrics and prevent them from burning quickly in fires. Usually, flame retardants form a protective film on the surface of fabrics or inside the fibers, which can effectively slow down the spread of flames. The role of sunscreen agents is to form a dense covering layer on the surface of fabrics to block or reflect light and achieve a sunscreen effect. The performance of sunscreen agents is closely related to their adhesion. If there are too many flame retardants on the surface of fabrics or the concentration of flame retardants is uneven, the adhesion of the sunscreen coating will decrease, thereby affecting the sunscreen effect and peel strength.

[0023] Example 1: Reference Figure 1As shown, in order to solve the above problems, the embodiment of the present invention discloses a method for manufacturing a multi-performance fabric, comprising: S10, preparing a composite fiber, wherein the composite fiber comprises a flame retardant skin layer and a light-shielding core layer; S20, spinning the composite fiber into yarn; S30, weaving the yarn into a basic fabric; S40, infiltrating the phosphorus-based flame retardant into the interior of the base fabric based on a padding method to obtain a padded fabric, and measuring the flame retardant concentration on the surface of the padded fabric; S50, plasma cleaning the padding fabric, and coating the surface of the padding fabric after cleaning with nano-TiO 2 A sunscreen layer to obtain a multi-performance fabric; Wherein, the TiO in the coating method is adjusted according to the flame retardant concentration on the surface of the padding fabric. 2 The amount of sunscreen added comprises: if the flame retardant concentration on the surface of the padding fabric is greater than the first target concentration, reducing the TiO 2 If the flame retardant concentration on the surface of the padded fabric is less than the first target concentration, increase the amount of TiO 2 The amount of sunscreen added.

[0024] The multi-performance fabric manufacturing method and curtain fabric described in the present invention can stably improve the peeling strength of the fabric shading layer through the synergistic effect of skin-core composite fibers, process optimization and intelligent regulation, while meeting the flame retardancy and shading requirements of the fabric.

[0025] In specific application scenarios, phosphorus-based flame retardants are blended with PET chips to produce flame-retardant masterbatches with a LOI (limiting oxygen index) ≥ 28%; nano carbon black is blended with PET chips to produce light-shielding masterbatches with a transmittance of < 3%; and composite fibers are prepared by simultaneously spinning a flame-retardant cortex and a light-shielding core layer using a core-skin composite spinning device. The composite fiber structure of a flame-retardant cortex + a light-shielding core layer physically isolates flame-retardant elements and light-shielding elements, blocking the migration or precipitation of flame retardants to the fiber surface from the source, avoiding the formation of a weak interface layer, and reducing interference with flame-retardant and light-shielding properties. In addition, the composite fiber structure of a flame-retardant cortex + a light-shielding core layer reduces the amount of flame retardants used in subsequent dyeing and finishing processes.

[0026] Among them, nano carbon black improves flame retardancy through a dual mechanism: (1) During combustion, carbon black promotes the formation of a dense carbon layer, which reduces porosity and increases the amount of residual carbon to form heat insulation and flame retardancy; (2) Nano carbon black reduces the thermal diffusion coefficient, raising the ignition temperature from 320°C to 415°C to inhibit heat conduction, completely avoiding the flammability problem of traditional coatings.

[0027] Specifically, the light-shielding core layer contains 8%-10% nano-carbon black by mass, and the particle size of the nano-carbon black is 30-50nm, forming a dispersed phase with an average spacing of less than or equal to 150nm in the PET matrix. The nano-carbon black achieves efficient light shielding through multiple scattering and absorption effects. The particle size of 30-50nm is close to 1 / 10 of the wavelength of visible light, and produces significant Rayleigh scattering. The scattering cross section of a single particle reaches (550nm wavelength). Transmission electron microscopy shows that the carbon black content is 8%, the average spacing is 142nm, and the light shielding rate is 99.3%; the carbon black content is 10%, the average spacing is 118nm, and the light shielding rate is 99.6%; this is due to: the carbon black extinction coefficient is as high as 8.7m² / g, which controls the dispersed phase spacing ≤150nm, ensuring that photons experience more than 66 scatterings in the 10μm path.

[0028] Based on this, the preferred light-shielding core layer material in the embodiment of the present invention completely avoids the flammability problem of traditional coatings, does not increase the burden of flame retardants (the oxygen index of the core layer is equivalent to that of pure PET), has a significant advantage in light-shielding rate, and maintains the mechanical properties of the fiber.

[0029] Furthermore, the skin-to-core ratio of the flame retardant skin layer and the light-shielding core layer is (2.5-3.5):1. The skin-to-core ratio of 2.5:1-3.5:1 can form a continuous and complete flame retardant barrier layer (measured minimum effective thickness of 12um), and at the same time, when the mass percentage concentration of nano carbon black is greater than or equal to 15%, the light transmittance is ensured to be less than 4%. Among them, when the skin-to-core ratio is less than 2.5:1, the skin layer is too thin, resulting in insufficient flame retardant loading and carbon black leakage in the core layer; when the skin-to-core ratio is greater than 3.5:1, the light-shielding efficiency of the core layer decreases and the fiber rigidity increases.

[0030] The prepared composite fiber is spun into yarn. During this process, ring spinning, air-jet spinning and other methods are used to make the physical structure of the fiber stable and have sufficient strength. The spinning speed is controlled and the concentration of flame retardant on the yarn surface is measured to provide basic data for subsequent closed-loop control.

[0031] The spun yarn is woven into a basic fabric using a standard weaving process. Different weaving methods can be selected, such as plain weave, twill, etc., to control the density, thickness and surface characteristics of the fabric, and ensure that the fabric is not deformed or damaged during subsequent processing. Among them, in the preferred embodiment of the present invention, the basic fabric is a double-layer fabric, the surface layer of the double-layer fabric is twill, and the inner layer is satin. Twill can improve the overall flame retardancy of the fabric, and satin can enhance the light-shielding property of the fabric: the yarn arrangement of the twill fabric gives it a certain oblique structure, which increases the tightness and strength of the fabric, helps to form a more uniform and solid surface, and effectively reduces the penetration of flames or high-temperature airflow into the fabric. In addition, because the twill has good density and strength, it can effectively inhibit the spread of combustion when exposed to high temperature environments, and improve the overall flame retardant properties of the fabric. The surface of the satin structure is smooth and dense, so that the fabric can effectively block the penetration of ultraviolet rays and visible light, and improve the overall light-shielding performance of the fabric, especially in the case of nano-TiO 2 After the sunscreen is applied, the satin structure provides a smooth surface for the sunscreen, further enhancing the sunscreen effect.

[0032] In addition, the double-layer fabric also enhances the overall structural stability of the fabric, allowing it to maintain its flame retardant and light-shielding functions after repeated use or exposure to harsh environments. Even after long-term wear or washing, the flame retardant and light-shielding properties of the fabric can still be well maintained.

[0033] The phosphorus-based flame retardant is infiltrated into the base fabric by the padding method. In this step, the base fabric is immersed in a solution containing the phosphorus-based flame retardant, and the flame retardant is uniformly infiltrated into the fabric fibers by roller pressure. Subsequently, the concentration of the flame retardant on the surface of the padding fabric is measured to determine the penetration effect of the flame retardant. Among them, the padding method can ensure that the flame retardant is uniformly infiltrated into the fibers of the base fabric and covers the entire structure of the fabric. Compared with the spraying or coating method, the padding method can better control the penetration depth of the flame retardant, ensuring that the fabric is not easy to lose its flame retardant effect during multiple washings or uses.

[0034] The base fabric obtained by padding is plasma cleaned to remove impurities on the fabric surface, improve the surface properties of the fabric, and increase the adhesion of the coating. Then, a layer of nano-TiO 2 Sunscreen, Nano-TiO 2 It can effectively absorb ultraviolet rays, increase the light-shielding properties of the fabric, and has certain antibacterial and self-cleaning functions.

[0035] TiO 2 The amount of sunscreen added is closely related to the concentration of the flame retardant on the surface of the padding fabric. Specifically, the amount of TiO2 added in the coating method is adjusted according to the concentration of the flame retardant on the surface of the padding fabric. 2The amount of sunscreen added includes reducing TiO 2 If the flame retardant concentration on the surface of the padded fabric is less than the first target concentration, increase the amount of TiO 2 The amount of sunscreen added. It should be noted here that: TiO 2 The amount of sunscreen added is the amount of TiO 2 Actual mass concentration of sunscreen (g / L).

[0036] Adjusting TiO 2 The core mechanism of the amount of sunscreen added is that the concentration of phosphorus flame retardants on the surface of the fabric is high after padding, and the enrichment of flame retardants will occupy the active sites on the fiber surface (-OH, etc.), hindering the TiO 2 Combination; flame retardants form a physical barrier that destroys TiO 2 Coating continuity. 2 The amount of addition is adjusted in reverse to achieve a balance of total solid content and maintain the solid content of the finishing liquid at 23±2wt%.

[0037] According to the flame retardant concentration of the padding fabric surface, the TiO 2 When the concentration of flame retardant is high, the amount of sunscreen added will reduce the amount of TiO 2 The amount of sunscreen added can reduce the interface incompatibility caused by flame retardant enrichment and avoid TiO 2 The accumulation of sunscreen agents at weak interfaces creates stress concentration, thereby increasing the peeling strength of the sunscreen layer and solving the problem of sunscreen coating shedding and cracking. 2 The amount of sunscreen added compensates for the decrease in sunscreen efficiency that may be caused by insufficient flame retardant, and at the same time, the active surface of TiO2 after plasma treatment is enhanced. 2 The bonding force also improves the peeling strength of the shading layer and increases the shading rate.

[0038] In addition, the TiO2 coating method was adjusted according to the flame retardant concentration on the surface of the padding fabric. 2 The amount of sunscreen added is, first, to control the total solid content below the critical value to avoid cracks in the coating due to excessive accumulation; second, to give priority to ensuring the effective adhesion of the flame retardant; third, by reducing Adding more can increase the surface tension of the finishing liquid from 42mN / m to 46mN / m, significantly improving its wettability to the fiber. It not only compensates for the light-shielding property, but also utilizes the scattering effect of its nanoparticles (30-50nm) to enhance the apparent flame retardant properties. The cone calorimetry test shows that the peak heat release rate is reduced by 18%.

[0039] Specifically, the TiO in the coating method is adjusted based on the following 2 Amount of sunscreen added: ; C stands for TiO 2 The actual amount of sunscreen added; C 0 TiO 2 The reference addition amount of sunscreen agent is 9.8~10.5g / L; K represents the first adjustment coefficient; R represents the measured value of the flame retardant concentration on the surface of the padding fabric (mass percentage concentration); Indicates the first target concentration.

[0040] In specific application scenarios, the percentage concentration of flame retardant on the impregnated surface can be detected based on infrared spectroscopy. The first target concentration is set based on the following multi-dimensional optimization: Performance balance point: The Pareto optimal solution of flame retardancy (LOI) and coating adhesion (Adhesion) is determined through experiments. Process stability: The flame retardant migration rate is the lowest at this concentration (surface P content fluctuation <±5% after 50 washes).

[0041] Specifically, it can be determined by the following steps: ① Prepare flame retardant concentration gradient samples (10-15wt%); ② Test the limiting oxygen index LOI and adhesion of each sample; ③ Select the lowest concentration value with LOI ≥ 30% and adhesion ≥ 9.5N / cm.

[0042] For example, the mass percentage concentration of the first target concentration is determined to be 12.5±0.5%.

[0043] Further, the first adjustment coefficient K is related to the yarn metric count S and satisfies the following relationship: ; It represents the reference adjustment coefficient, which is 0.21~0.24g / (L·%); Indicates the standard metric count, ranging from 38 to 42 meters / g.

[0044] In a specific application scenario, the yarn metric count S is an indicator of the yarn fineness, which is defined as the length in meters of 1 gram of yarn. The larger the metric count, the finer the yarn; conversely, the smaller the metric count, the thicker the yarn. In the embodiment of the present invention, the first adjustment coefficient K is associated with the yarn metric count S, that is, it is associated with the yarn fineness: fine yarn (high metric count S) has a larger specific surface area, and the flame retardant surface coverage per unit mass of fiber is higher, and the flame retardant is more easily enriched on the surface, which reduces TiO 2 Conversely, thick yarn increases the amount of TiO 2The amount of sunscreen added. The first adjustment coefficient K is modified by the metric count of the yarn. On the one hand, the thin yarn itself has a higher sunscreen efficiency. On the other hand, the thin yarn reduces TiO 2 While increasing the amount of sunscreen agent added, its higher specific surface area characteristics are utilized to achieve an optimized distribution of the flame retardant and the sunscreen coating.

[0045] As a further improvement of the embodiment of the present invention, refer to Figure 2 As shown, the manufacturing method also includes detecting the flame retardant concentration on the surface of the yarn, and adjusting the amount of the phosphorus-based flame retardant added in the padding method according to the flame retardant concentration on the surface of the yarn; wherein, if the flame retardant concentration on the surface of the yarn is greater than the second target concentration, the amount of the phosphorus-based flame retardant added is reduced; if the flame retardant concentration on the surface of the padding fabric is less than the second target concentration, the amount of the phosphorus-based flame retardant added is increased.

[0046] In the specific application scenario, a near-infrared spectrometer is installed at the spinning outlet to measure the flame retardant concentration on the yarn surface in real time. According to the measured flame retardant concentration on the yarn surface, a second target concentration is set, and the amount of phosphorus flame retardant added in the padding method is feedback-adjusted by comparing the measurement results. The flame retardant concentration on the yarn surface directly reflects the potential migration risk of the flame retardant. The amount of flame retardant added in the padding stage is pre-regulated according to the flame retardant concentration on the yarn surface. If the flame retardant concentration on the yarn surface is greater than the second target concentration, it indicates that the flame retardant migration risk in the base fabric is relatively large. The amount of phosphorus flame retardant added in the padding method is reduced. By reducing the amount of flame retardant added, the gradient driving force of the flame retardant inside the fiber is reduced, and the subsequent migration amount is reduced. 2 The coating reserves more binding sites; on the contrary, if the flame retardant concentration on the surface of the impregnated fabric is less than the second target concentration, it indicates that the flame retardant concentration of the yarn is lower than the target, and the amount of the phosphorus flame retardant added in the impregnation method is increased to compensate for the flame retardant loss, and the wicking effect is enhanced by increasing the amount of the flame retardant added to maintain the balance of flame retardancy / light-shielding performance. It should be noted that the amount of phosphorus flame retardant added refers to the mass concentration (g / L) of the phosphorus flame retardant in the impregnation finishing solution.

[0047] The embodiment of the present invention forms a two-level feedback control of primary control + secondary feedback prejudgment, which are: primary prejudgment: adjusting the addition amount of phosphorus flame retardant in the padding method according to the flame retardant concentration on the yarn surface; secondary control: adjusting the addition amount of TiO in the coating method according to the flame retardant concentration on the surface of the padding fabric. 2 The amount of sunscreen added. The overall positive regulation path and the reverse compensation path are formed: Positive regulation path: When the flame retardant concentration on the yarn surface is greater than the second target concentration, the amount of flame retardant added is reduced through the first-level control, and TiO is reduced in advance through the second-level prediction. 2 The amount of sunscreen added.

[0048] Reverse compensation path: When the flame retardant concentration on the surface of the padding fabric is less than the first target concentration, the TiO 2 The amount of sunscreen added; increase the padding concentration of the next batch through primary feedback.

[0049] Through the synergistic effect of two-level feedback regulation, the bottleneck of the mutual exclusion of fabric light-shielding and flame retardancy was broken through, and the surface concentration of flame retardant was finally stabilized. 2 The coverage of the light-shielding coating is improved.

[0050] Among them, the detection method of the flame retardant concentration on the yarn surface is the same as the above-mentioned detection method of the flame retardant concentration on the impregnated fabric surface; the second target concentration setting method and determination method are the same as the above-mentioned first target concentration, which will not be repeated here.

[0051] Specifically, the amount of the phosphorus-based flame retardant added in the padding method is adjusted based on the following method: ; Among them, C FR Indicates the amount of phosphorus flame retardant added; C FR 0 Indicates the standard addition amount of phosphorus flame retardant, which is 17.4~18.6g / L; represents the second adjustment coefficient, with a value of 0.5~0.7g / (L·%); R FR It indicates the flame retardant concentration measurement on the yarn surface; Indicates the second target concentration.

[0052] Furthermore, the manufacturing method also includes adjusting the spinning speed and weaving density according to the flame retardant concentration on the yarn surface; wherein, if the flame retardant concentration on the yarn surface is greater than the second target concentration, the spinning speed is increased and the weaving density is reduced; if the flame retardant concentration on the yarn surface is less than the second target concentration, the spinning speed is reduced and the weaving density is increased.

[0053] In specific application scenarios, when it is detected that the flame retardant concentration on the yarn surface is greater than the second target concentration, the spinning speed is increased and the weaving density is reduced simultaneously. The spinning speed is increased to reduce the amount of flame retardant adhesion; the weaving density is reduced to increase the permeability of the subsequent finishing liquid. When it is detected that the flame retardant concentration on the yarn surface is less than the second target concentration, the spinning speed is reduced and the fabric warp density is increased simultaneously. The spinning speed is reduced to increase the penetration of the flame retardant; the fabric warp density is increased to compensate for the flame retardant effect.

[0054] Embodiment 2: having the same inventive concept as Embodiment 1, provides a curtain fabric made according to a multi-performance fabric manufacturing method of Embodiment 1.

[0055] The curtain fabric described in the embodiment of the present invention has the same technical effects as the first embodiment, which will not be described in detail here.

[0056] In summary, the multi-performance fabric manufacturing method and curtain fabric described in the present invention, through the synergistic effect of skin-core composite fibers, process optimization and intelligent regulation, stably improve the peeling strength of the fabric shading layer, while meeting the flame retardancy and shading requirements of the fabric.

[0057] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0058] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0059] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0060] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0061] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A method for manufacturing a multi-performance fabric, characterized in that: include, preparing a composite fiber, the composite fiber comprising a flame retardant skin layer and a light-shielding core layer; Spinning the composite fiber into yarn, and weaving the yarn into a base fabric; Infiltrating the phosphorus-based flame retardant into the base fabric based on a padding method to obtain a padded fabric, and measuring the flame retardant concentration on the surface of the padded fabric; Plasma cleaning the padded fabric, and coating the surface of the padded fabric after cleaning with a nano-TiO2 sunscreen layer based on a coating method to obtain a multi-performance fabric; Among them, the amount of TiO2 sunscreen added in the coating method is adjusted according to the flame retardant concentration on the surface of the impregnated fabric, which includes: if the flame retardant concentration on the surface of the impregnated fabric is greater than the first target concentration, reducing the amount of TiO2 sunscreen added; if the flame retardant concentration on the surface of the impregnated fabric is less than the first target concentration, increasing the amount of TiO2 sunscreen added.

2. The method for manufacturing a multi-performance fabric according to claim 1, characterized in that: The amount of TiO2 sunscreen added in the coating method is adjusted based on the following method: ； C represents the actual amount of TiO2 sunscreen added; C0 represents the reference amount of TiO2 sunscreen added, which is 9.8~10.5g / L; K represents the first adjustment coefficient; R represents the measured value of the flame retardant concentration on the surface of the padding fabric; Indicates the first target concentration.

3. The method for manufacturing a multi-performance fabric according to claim 2, characterized in that: The first adjustment coefficient K is related to the yarn metric count S and satisfies the following relationship: ； It represents the reference adjustment coefficient, which is 0.21~0.24g / (L·%); Indicates the standard metric count, ranging from 38 to 42 meters / g.

4. The method for manufacturing a multi-performance fabric according to any one of claims 1 to 3, characterized in that: The manufacturing method further comprises detecting the flame retardant concentration on the surface of the yarn, and adjusting the addition amount of the phosphorus-based flame retardant in the padding method according to the flame retardant concentration on the surface of the yarn; If the flame retardant concentration on the yarn surface is greater than the second target concentration, the amount of the phosphorus-based flame retardant added is reduced; if the flame retardant concentration on the padded fabric surface is less than the second target concentration, the amount of the phosphorus-based flame retardant added is increased.

5. The method for manufacturing a multi-performance fabric according to claim 4, characterized in that: The amount of the phosphorus flame retardant added in the padding method is adjusted based on the following method: ； Among them, C FR Indicates the amount of phosphorus flame retardant added; C FR 0 Indicates the standard addition amount of phosphorus flame retardant, which is 17.4~18.6g / L; Represents the second adjustment coefficient; R FR It indicates the flame retardant concentration measurement on the yarn surface; Indicates the second target concentration.

6. The method for manufacturing a multi-performance fabric according to claim 4, characterized in that: It also includes adjusting the spinning speed and weaving density according to the flame retardant concentration on the yarn surface; wherein, if the flame retardant concentration on the yarn surface is greater than the second target concentration, the spinning speed is increased and the weaving density is reduced; if the flame retardant concentration on the yarn surface is less than the second target concentration, the spinning speed is reduced and the weaving density is increased.

7. The method for manufacturing a multi-performance fabric according to claim 1, characterized in that: The light-shielding core layer contains 8%-10% by mass of nano carbon black, the particle size of the nano carbon black is 30-50nm, and forms a dispersed phase with an average spacing of less than or equal to 150nm in the PET matrix.

8. The method for manufacturing a multi-performance fabric according to claim 1 or 7, characterized in that: The skin-to-core ratio of the flame retardant skin layer and the light-shielding core layer is (2.5-3.5):

1.

9. The method for manufacturing a multi-performance fabric according to claim 1, characterized in that: The basic fabric is a double-layer fabric, the surface layer of the double-layer fabric is twill, and the inner layer is satin.

10. Curtain fabric, characterized in that: The multi-performance fabric is prepared according to the method for manufacturing the multi-performance fabric as described in any one of claims 1 to 9.

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