High-strength and high-color-fastness nylon silk ribbon
By designing a double-layer structure and functional molecular membrane, the problem of poor weather resistance of brocade ribbon was solved, achieving a balance between high strength, high color fastness, and lightweight, thus improving the extreme environmental adaptability and operational stability of the parachute system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-07
AI Technical Summary
Existing nylon ribbons have poor weather resistance and cannot balance material strength and lightweight, which limits the performance of parachute systems.
Employing a double-layer structure and functional molecular membrane, the combination of nylon 66 filament and functional molecular membrane enhances the material's UV resistance, hydrophobicity, flame retardancy, and light fastness. Combined with the specifications of warp, weft, and connecting yarns, a balance is achieved in longitudinal strength, transverse elongation, and interlayer stability.
It improves the stability of brocade ribbon under ultraviolet radiation and rain, enhances its performance in extreme environments, and meets the needs of aerospace and emergency rescue.
Smart Images
Figure CN224092226U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of textile technology, specifically relating to a high-strength, high-colorfastness brocade ribbon. Background Technology
[0002] As a key piece of equipment for aviation rescue and airdrop deceleration, parachutes demonstrate irreplaceable value in extreme environments due to their unique design and material properties. As a derivative product of special textile materials, parachutes have several key requirements, including: 1) High-efficiency deceleration and precise control: After deployment, the parachute utilizes air resistance to achieve rapid deceleration, while control lines adjust the landing point to enhance landing safety; 2) Lightweight and high reliability: Employing high-strength nylon and a modular design, the entire system can be kept lightweight, capable of bearing loads from hundreds to several tons, and accurately deploying in emergencies; 3) Versatile environmental adaptability: Capable of stable operation at altitudes ranging from hundreds to tens of thousands of meters, covering various civilian and military scenarios such as supply airdrops and spacecraft deceleration.
[0003] Parachute components include the canopy, lines, straps, and pack. Among these, the straps, as a key load-bearing component of the parachute system, bear the core function of connecting the canopy, load, and control system. Their role is crucial throughout the entire process of parachute deployment, deceleration, and stable landing, significantly impacting the overall performance of the parachute system. my country's parachute industry began designing and manufacturing high-strength strap materials as early as the mid-20th century, achieving a transition from natural fibers to synthetic fibers. The most commonly used high-strength canopy reinforcement straps, edge straps, and back straps are made from nylon 66 filament through dyeing or colored spinning and finishing processes.
[0004] Despite breakthroughs in materials and manufacturing processes in modern parachute systems, the following core issues still limit the expansion of performance limits:
[0005] 1) The contradiction in performance balance: the conflict between material strength and lightweight. To meet the tensile strength requirement, the material density needs to be increased, which may result in a relatively high weight of a single brocade ribbon, which contradicts the high strength-to-weight ratio of airdrop.
[0006] 2) Weather resistance needs to be improved. Long-term exposure to ultraviolet rays and ozone will cause the nylon molecular chains to break, and they cannot be restored through routine maintenance.
[0007] Therefore, it is of great significance to develop and design a new generation of high-performance brocade ribbons. Utility Model Content
[0008] The purpose of this invention is to provide a high-strength, high-colorfastness brocade ribbon, which solves the technical problems of poor weather resistance and inability to balance material strength and lightweight in existing brocade ribbons.
[0009] This utility model discloses a high-strength, high-colorfastness brocade ribbon, comprising:
[0010] The double-layer structure includes warp yarns, connecting yarns, and weft yarns made of nylon 66 filaments;
[0011] A functional molecular membrane covers the surface of the bilayer tissue structure.
[0012] This application endows nylon 66 filaments with high strength and flexibility, meeting the requirements of good mechanical properties, high strength-to-weight ratio, and easy bending into rings in applications. Furthermore, through functional molecular films, it endows nylon 66 filaments with good UV resistance, hydrophobicity, flame retardancy, abrasion resistance, light fastness, and breaking strength stability under different climates. This avoids the impact of ultraviolet radiation on the structural stability of nylon 66 in parachute airdrop applications and avoids the impact of rainwater on the dimensional and structural stability of the nylon 66 filament, thus improving its application performance in extremely cold environments at high altitudes and extremely hot environments on the ground.
[0013] Based on the above technical solution, the solution of this application can be further improved as follows:
[0014] Preferably, the warp yarn has a specification of 2000~4000D, the weft yarn has a specification of 650~750D, and the connecting yarn has a specification of 450~500D. By adopting this solution, the longitudinal strength, transverse extensibility, and interlayer stability of the fabric are balanced through the gradient configuration of the thickness, thus ensuring the actual use effect.
[0015] Preferably, the single filament strength of the warp, weft, and connecting yarns is ≥9.5g / D. This solution ensures longitudinal load-bearing capacity, improves interlayer peel strength, and ensures the dimensional stability of the fabric under dynamic loads, enabling the brocade ribbon to withstand use under extreme conditions.
[0016] Preferably, the warp density of the double-layer structure is 17.2~17.8 threads / cm, the weft density is 9.2~9.5 threads / cm, the width is 4.4cm, the warp breaking strength is ≥27000N, and the minimum bending ring height is ≤5.2cm. By adopting this solution, the density, strength, and flexibility of the double-layer structure are limited, so that the brocade ribbon has both super load-bearing capacity and civilian comfort, which has significant advantages in emergency rescue, aerospace and other fields.
[0017] Preferably, the double-layer structure includes a face structure and a back structure. The warp yarns of the face structure float above the weft yarns, forming the face structure warp weft points. The warp yarns of the back structure float above the weft yarns, forming the back structure warp weft points. The weft yarns float above the warp yarns, forming the weft weft points. The warp yarns of the face structure and the weft yarns of the back structure interweave to form knots. The fabric structure of the double-layer structure is as follows:
[0018] The warp threads in the first column are above the weft threads in the first row, forming the surface weave warp point;
[0019] The warp threads in the second column are above the weft threads in the third row, forming the surface weave warp point;
[0020] The warp threads in column I are the in-line warp weft points above the weft threads in rows 1, 2, and 3;
[0021] The warp threads in column II are the inner weave warp points above the weft threads in rows 1, 3, and 4;
[0022] The weft threads in rows I, II, III, and IV are weft stitch points above the warp threads in columns 1, 2, and A;
[0023] The warp threads in column A interweave with the weft threads in rows 2 and 4 to form a junction.
[0024] Through the above technical solution, this utility model achieves the following beneficial effects:
[0025] 1. This application endows nylon 66 filament with high strength and flexibility, meeting the requirements of good mechanical properties, high strength-to-weight ratio and easy bending into rings in applications. Furthermore, through functional molecular films, it endows nylon 66 filament with good UV resistance, hydrophobicity, flame retardancy, abrasion resistance and light fastness, and breaking strength stability under different climates. This avoids the impact of ultraviolet radiation on the structural stability of nylon 66 in nylon 66 filament in parachute airdrop applications, avoids the impact of rainwater on the dimensional and structural stability of nylon 66 filament, and improves the application performance in high-altitude extremely cold environments and ground extremely hot environments.
[0026] 2. This application achieves a balance between the longitudinal strength, transverse extensibility, and interlayer stability of the fabric through a gradient configuration of coarse and fine textures, thus ensuring the actual performance in use.
[0027] 3. This application ensures longitudinal load-bearing capacity and improves interlayer peel strength by limiting the strength of the single filaments of warp, weft, and connecting yarns, thus ensuring the dimensional stability of the fabric under dynamic loads and enabling the nylon ribbon to withstand use under extreme conditions. Attached Figure Description
[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0029] Figure 1 This is a schematic diagram of the structure of the high-strength, high-colorfastness brocade ribbon described in a specific embodiment of this utility model;
[0030] Figure 2 for Figure 1 The fabric structure diagram shown is of a double-layer structure in a high-strength, high-colorfastness brocade ribbon.
[0031] Explanation of reference numerals in the attached figures:
[0032] 1. Bilayer structure; 2. Functional molecular membrane. Detailed Implementation
[0033] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.
[0034] First, it should be noted that some directional terms used in the following description to clearly illustrate the technical solution of this utility model, such as the terms "upper," "lower," "front," "back," "vertical," "horizontal," "top," "bottom," "inner," and "outer," are all derived from the normal orientation of high-strength, high-color-fastness brocade ribbons. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0035] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0036] To better understand the above technical solutions, the following will provide a detailed description of the technical solutions in conjunction with the accompanying drawings and specific embodiments.
[0037] Example:
[0038] like Figure 1 As shown, in view of the technical problems of poor weather resistance and inability to balance material strength and lightweight of existing brocade ribbons, this application discloses a high-strength and high-color-fastness brocade ribbon, the structure of which includes: a double-layer structure 1 and a functional molecular membrane 2.
[0039] The double-layer structure 1 includes warp yarns, connecting yarns, and weft yarns made of nylon 66 filaments; wherein the warp yarns provide basic strength in the longitudinal direction, the connecting yarns enhance structural stability through interlayer connection, and the weft yarns interweave laterally to form the main body of the fabric.
[0040] The functional molecular membrane 2 is coated on the surface of the double-layer structure 1 after being processed by impregnation with a composite finishing liquid and high-temperature baking. It contains polyurethane emulsion, UV protectant, flame retardant and nano water repellent.
[0041] It is understandable that pad-on finishing solution refers to uniformly loading a solution containing functional molecules onto the surface of a substrate through impregnation or rolling; high-temperature baking refers to curing the molecular film through heat treatment, thereby forming a stable and dense coating layer.
[0042] It should be noted that nylon 66 filament, also known as polyhexamethylene adipamide fiber, is polymerized from adipic acid and hexamethylenediamine. Compared with nylon 6, it has the advantages of high heat resistance, softness and skin-friendliness, good comfort, high tensile strength and good abrasion resistance.
[0043] It should be noted that, to ensure the effectiveness of use, the 66 filament of the nylon is spun using solution dyeing. The nylon ribbon has a light fastness of ≥6, a wet rubbing fastness of ≥4, a UVA transmittance of ≤3%, a UV protection factor (UPF) of >70, a contact angle of ≥120° within 30 seconds after water droplets come into contact with the nylon ribbon, and a breaking strength decrease of less than 5% and a limiting oxygen index of >30 after being stored in the range of -40~70℃ for 10 hours.
[0044] This invention imparts high strength and flexibility to nylon 66 filaments, meeting the requirements for good mechanical properties, high strength-to-weight ratio, and easy bending into rings in applications. Furthermore, the functional molecular film 2 imparts good UV resistance, hydrophobicity, flame retardancy, abrasion resistance, light fastness, and breaking strength stability under different climates. This avoids the impact of ultraviolet radiation on the structural stability of nylon 66 in parachute airdrop applications, avoids the impact of rainwater on the dimensional and structural stability of the nylon tape, and improves its application performance in extremely cold high-altitude environments and extremely hot ground temperatures.
[0045] In some embodiments, the warp yarn has a specification of 2000~4000D, the weft yarn has a specification of 650~750D, and the connecting yarn has a specification of 450~500D.
[0046] It should be noted that D (Delta) is a unit of fiber fineness, defined as the weight in grams of 9000 meters of fiber; the higher the value, the coarser the fiber.
[0047] Specifically, setting a high D value for the warp yarns achieves a leap in longitudinal tensile strength. By setting a medium D value for the weft yarns, the transverse tear resistance and flexibility are balanced, avoiding fabric stiffness caused by excessively thick weft yarns. Furthermore, by setting a low D value for the connecting yarns, the interlayer bonding force of the double-layer structure is ensured while controlling the overall weight.
[0048] The above specifications, through a gradient configuration of coarseness, balance the longitudinal strength, transverse stretchability, and interlayer stability of the fabric, ensuring the actual performance in use.
[0049] Based on the above embodiments, the single filament strength of the warp, weft, and connecting yarns is ≥9.5g / D, which ensures longitudinal load-bearing capacity, improves interlayer peel strength, ensures the dimensional stability of the fabric under dynamic load, and enables the nylon ribbon to withstand use under extreme conditions.
[0050] In some embodiments, the warp density of the double-layer structure 1 is 17.2~17.8 threads / cm, the weft density is 9.2~9.5 threads / cm, the width is 4.4cm, the warp breaking strength is ≥27000N, and the minimum bending ring height is ≤5.2cm.
[0051] Specifically, the high warp density increases the longitudinal tensile strength, effectively dispersing load stress, while the low weft density reduces fabric rigidity, improves transverse bending flexibility, and prevents breakage.
[0052] Specifically, the 4.4cm width design meets ergonomic requirements while satisfying the requirements for contact area, and the warp tensile strength is ≥27000N, ensuring that the brocade ribbon has a super strong load-bearing capacity.
[0053] Specifically, the low bending loop height achieves high flexibility, allowing the ribbon to wrap around a cylinder without noticeable creases, making it suitable for complex wearing scenarios.
[0054] By limiting the density, strength, and flexibility of the double-layer structure 1, the brocade ribbon combines super load-bearing capacity with civilian comfort, giving it significant advantages in emergency rescue, aerospace, and other fields.
[0055] For example, based on the above embodiments:
[0056] The warp yarn is 4000D, the connecting yarn is 500D, the weft yarn is 750D, and the single filament strength is 9.5g / D; the double-layer structure is as follows: Figure 2 As shown, the nylon ribbon has a warp density of 17.5 threads / cm, a weft density of 9.5 threads / cm, a width of 4.4cm, a warp breaking strength of 27500N, and a minimum bending ring height of 5.1cm. After being impregnated with a composite finishing liquid and baked at high temperature, the surface of the nylon 66 filament is covered with a functional molecular film 2, which contains polyurethane emulsion, UV protectant, flame retardant, and nano water repellent. The nylon 66 filament is spun using solution dyeing. The nylon ribbon has a light fastness of 6.5 and a wet rubbing fastness of 4. The UVA transmittance of the nylon ribbon is 2.5%, the UV protection factor (UPF) index is 72, the contact angle of water droplets within 30 seconds of contact with the nylon ribbon surface is 123°, and after being stored in the range of -40~70℃ for 10 hours, the breaking strength decreases by 4.5% and the limiting oxygen index for combustion is 31.
[0057] In some embodiments, the double-layer structure includes a face fabric and a back fabric. The warp yarns of the face fabric float above the weft yarns at the face fabric warp weft points, and the warp yarns of the back fabric float above the weft yarns at the back fabric warp weft points. The weft yarns float above the warp yarns at the weft weft weft points. The interlacing of the warp yarns of the face fabric and the weft yarns of the back fabric forms the junction points. The fabric structure of the double-layer structure is as follows:
[0058] The warp threads in the first column are above the weft threads in the first row, forming the surface weave warp point;
[0059] The warp threads in the second column are above the weft threads in the third row, forming the surface weave warp point;
[0060] The warp threads in column I are the in-line warp weft points above the weft threads in rows 1, 2, and 3;
[0061] The warp threads in column II are the inner weave warp points above the weft threads in rows 1, 3, and 4;
[0062] The weft threads in rows I, II, III, and IV are weft stitch points above the warp threads in columns 1, 2, and A;
[0063] The warp threads in column A interweave with the weft threads in rows 2 and 4 to form a junction.
[0064] It should be noted that, as Figure 2 The meanings of the symbols in the Chinese character set are as follows:
[0065] ■: Warp points in surface weave are the points where the warp yarns of the surface weave float above the weft yarns. They appear as warp yarn floats on the fabric surface and constitute part of the fabric's surface appearance.
[0066] ×: Warp point of the inner weave, the point where the warp yarn of the inner weave floats above the weft yarn, located in the inner layer of the fabric.
[0067] □: Weft weft point, whether on the surface or the inner layer, is the point where the weft thread floats above the warp thread.
[0068] ○: "Top-to-bottom" junction is used to connect the outer and inner layers. It is the interlacing of the warp yarns of the outer layer and the weft yarns of the inner layer, realizing the connection between the upper and lower layers and ensuring the stability of the double-layer fabric structure.
[0069] Warp and weft markings: Warp yarns are indicated by numbers (1, 2, 3, 4) and Roman numerals (Ⅰ, Ⅱ, Ⅲ, Ⅳ) in the longitudinal direction; weft yarns are indicated by numbers (1, 2), Roman numerals (Ⅰ, Ⅱ), and the letter (A) in the transverse direction.
[0070] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.
[0071] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.
Claims
1. A high-strength, high-colorfastness brocade ribbon, characterized in that, include: The double-layer structure includes warp yarns, connecting yarns, and weft yarns made of nylon 66 filaments; A functional molecular membrane covers the surface of the bilayer tissue structure; The double-layer structure includes a face fabric and a back fabric. The warp yarns of the face fabric float above the weft yarns, forming the face fabric warp weft points. The warp yarns of the back fabric float above the weft yarns, forming the back fabric warp weft points. The weft yarns float above the warp yarns, forming the weft weft points. The warp yarns of the face fabric and the weft yarns of the back fabric interweave to form knots. The fabric structure of the double-layer structure is as follows: The warp threads in the first column are above the weft threads in the first row, forming the surface weave warp point; The warp threads in the second column are above the weft threads in the third row, forming the surface weave warp point; The warp threads in column I are the in-line warp weft points above the weft threads in rows 1, 2, and 3; The warp threads in column II are the inner weave warp points above the weft threads in rows 1, 3, and 4; The weft threads in rows I, II, III, and IV are weft stitch points above the warp threads in columns 1, 2, and A; The warp threads in column A interweave with the weft threads in rows 2 and 4 to form a junction.
2. The high-strength, high-colorfastness brocade ribbon according to claim 1, characterized in that, The warp yarn has a specification of 2000~4000D, the weft yarn has a specification of 650~750D, and the connecting yarn has a specification of 450~500D.
3. The high-strength, high-colorfastness brocade ribbon according to claim 2, characterized in that, The single filament strength of the warp, weft, and connecting filaments is ≥9.5g / D.
4. The high-strength, high-colorfastness brocade ribbon according to claim 1, characterized in that, The double-layered structure has a warp density of 17.2~17.8 threads / cm, a weft density of 9.2~9.5 threads / cm, a width of 4.4cm, a warp breaking strength ≥27000N, and a minimum bending ring height ≤5.2cm.