Fabric and weaving method thereof

Abstract

The invention discloses a fabric and a weaving method of the fabric. The fabric comprises a first layer surface and a second layer surface, and the knitting method is implemented on a computerized flat knitting machine and comprises the following steps: alternately knitting the first layer surface and the second layer surface; wherein when the first surface layer is knitted, the front needle bed and the rear needle bed alternately carry out needle separation surface knitting and needle separation bottom knitting by utilizing dyed yarns so as to form the first surface layer and the first bottom layer; a bottom knitting coil of the first bottom layer is turned from the rear needle bed to the front needle bed; when a second layer is knitted, the rear needle bed and the front needle bed utilize the dyed yarn to alternately carry out knitting with the needle bottom and knitting with the needle surface so as to form a second bottom layer and a second surface layer of the second layer; surface knitting coils of the second surface layer are turned from the front needle bed to the rear needle bed; and the first knitting needle position and the first separation needle position of the needle separation surface knitting are respectively aligned with the second separation needle position and the second knitting needle position of the needle separation bottom knitting when the adjacent layers are knitted.

Description

Technical Field

[0001] This application relates to the field of textile fabric technology, and in particular to a weaving method and fabric of an integrally woven fabric with multiple color variations. Background Technology

[0002] Colored fabrics are an important type of product in the textile industry. With the development of textile technology and the increasing demands of users for the quality and personalization of colored fabrics, single-color fabrics or multi-color fabrics produced by combining multiple independent processes such as cutting, weaving, sewing, and overlocking can no longer meet user needs due to their limited color options, chaotic color matching, and poor structural stability. Moreover, the production process is complex and inefficient. Summary of the Invention

[0003] To address at least one of the aforementioned problems, this application discloses a method for weaving a fabric and the fabric itself. The fabric is woven in one piece using a double-needle bed computerized flat knitting machine combined with real-time dyed yarn, resulting in high production efficiency and multiple color effects.

[0004] This application provides a method for knitting a fabric, the fabric comprising a first layer and a second layer, the knitting method being implemented on a double-needle-bed computerized flat knitting machine; the knitting method may include: alternately knitting the first layer and the second layer; wherein, when knitting the first layer, the front needle bed and the back needle bed alternately perform spaced-needle face knitting and spaced-needle bottom knitting using dyed yarn to form a first surface layer and a first bottom layer; the bottom knitting loops of the first bottom layer are turned from the back needle bed to the front needle bed; when knitting the second layer, the back needle bed and the front needle bed alternately perform spaced-needle bottom knitting and spaced-needle face knitting using the dyed yarn to form a second bottom layer and a second surface layer; the surface knitting loops of the second surface layer are turned from the front needle bed to the back needle bed; wherein, the first knitting needle position and the first spaced-needle needle position of the spaced-needle face knitting are respectively aligned with the second spaced-needle needle position and the second knitting needle position of the spaced-needle bottom knitting when knitting adjacent layers.

[0005] According to some embodiments of this application, the number of needle stitches in the needle-separating surface knitting and / or the needle-separating bottom knitting is at least 1.

[0006] According to some embodiments of this application, the needle-separating surface knitting includes one open and one open surface knitting, and the needle-separating bottom knitting includes one open and one bottom knitting.

[0007] According to some embodiments of this application, alternating between ground stitch knitting and ground stitch knitting is performed, with the number of alternating stitches being at least 1.

[0008] According to some embodiments of this application, the dyed yarn is obtained by dyeing the original color yarn in real time.

[0009] According to some embodiments of this application, the dyed yarn includes solid color yarn or multicolor yarn having multiple color combinations.

[0010] According to some embodiments of this application, the dyed yarn is formed by spinning a first dyed yarn and a second dyed yarn together; wherein the first dyed yarn covers the second dyed yarn, and the first dyed yarn and the second dyed yarn are different colors.

[0011] A second aspect of this application provides a fabric obtained based on the weaving method described above; wherein the fabric forms spaced-apart recessed and raised structures based on the weaving method; when unused, the fabric is in a contracted state, the raised structures partially or completely cover the recessed structures, and the outer surface of the fabric exhibits a first color effect of the raised structures; when in use, the fabric is in an extended state, the recessed structures are exposed, and the outer surface exhibits both the first color effect of the raised structures and a second color effect of the recessed structures.

[0012] According to some embodiments of this application, the fabric includes a first layer and a second layer, the first layer including a first surface layer and a first bottom layer, and the second layer including a second bottom layer and a second surface layer.

[0013] According to some embodiments of this application, the fabric is a bag-like structure, including a bag body that is closed at the bottom and open at the top, and a handle connecting the bag body.

[0014] The weaving method for fabrics provided in this application enables the achievement of different color variations on the same layer of a three-dimensional fabric. This color variation effect is achieved through real-time dyeing of yarns. Real-time dyeing can incorporate preset color patterns, combinations of multi-color lines, or gradient color combinations onto the dyed yarns, making it widely applicable. When a fabric needs to exhibit gradient colors, real-time dyeing of yarns can provide extremely natural and smooth color changes, avoiding the abruptness caused by using pre-dyed combinations of multiple yarns.

[0015] Furthermore, the fabrics provided in this application, such as bags, are integrally woven using a computerized flat knitting machine. All components, including the bag body, handles, and pockets, are woven in one piece, eliminating the need for splicing. This avoids the problem of easy cracking at the seams of traditional sewn bags, resulting in a continuous, strong, and longer-lasting structure. The integral molding process also ensures the bag's aesthetics and overall integrity. Moreover, the real-time dyeing of the yarn used during weaving allows the bags to display a variety of colors. The dyed yarn can flexibly achieve various color patterns and color combinations according to requirements, eliminating the need for color swatches and batch dyeing. This allows for rapid response to personalized customization needs, meeting the aesthetic demands of different consumers and enhancing product competitiveness. In addition, the combination of integral molding using a computerized flat knitting machine and real-time dyeing of the yarn eliminates cumbersome processes such as dyeing, cutting, and sewing, significantly simplifying the production process, greatly improving production efficiency, and significantly reducing time and labor costs.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The disclosure of this application will become more readily understood with reference to the accompanying drawings. It will be readily understood by those skilled in the art that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this application. Furthermore, similar numbers in the drawings are used to denote similar components, wherein: Figure 1 This is an exemplary flowchart of a method for weaving a fabric according to some embodiments of this application; Figure 2 These are exemplary structural diagrams of fabrics shown according to some embodiments of this application; Figure 3 These are exemplary state diagrams of fabrics shown according to some embodiments of this application; Figure 4 This is another exemplary state diagram of the fabric shown according to some embodiments of this application; Figure 5 These are exemplary weaving process diagrams of fabrics shown according to some embodiments of this application; Figure 6 These are exemplary state diagrams of fabrics shown according to some embodiments of this application; Figure 7 This is another exemplary state diagram of the fabric shown according to some embodiments of this application. Detailed Implementation

[0018] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0019] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used in this application and in its specification is for the purpose of describing particular embodiments only and is not intended to limit the application. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships, which may change accordingly when the absolute position of the described object changes. The terms "and / or" or "and / or" as used in this application include any and all combinations of one or more of the associated listed items.

[0020] The following description, with reference to the accompanying drawings, illustrates some preferred embodiments of the present application. It should be noted that the following description is for illustrative purposes only and is not intended to limit the scope of protection of the present application. The flowcharts used are for illustrating the operations performed by the system according to embodiments of the present application. It should be understood that the described operations are not necessarily performed precisely in sequence. Instead, various steps may be processed in reverse order or simultaneously. Furthermore, other operations may be added to these processes, or one or more steps may be removed from these processes.

[0021] Figure 1 This is an exemplary flowchart illustrating a method of weaving a fabric according to some embodiments of this application. The fabric may include a first layer and a second layer, and the weaving method may be implemented by a computerized flat knitting machine. Figure 1 As shown, the weaving method of the fabric may include: alternately weaving the first layer and the second layer.

[0022] In some embodiments, the yarn used for weaving the first and second layers can be dyed yarn. This dyed yarn can be obtained by real-time dyeing of the original color yarn. The original color yarn can include white original color yarn. Examples include polyester original color yarn, nylon original color yarn, acrylic original color yarn, and polypropylene original color yarn. Alternatively, natural fibers can be used to achieve white yarn by removing natural pigments from the fibers using a bleaching agent. This application does not specifically limit the material of the original color yarn. As an optional example, the original color yarn can include high-strength bright polyester yarn. Bright polyester yarn itself has high luster, and after dyeing, the color is more vibrant and bright, exhibiting saturated and layered colors. Furthermore, the "mirror reflection" effect of the bright base of the bright polyester yarn, combined with the "absorption-reflection" characteristics of the dye, allows the yarn to exhibit the inherent color of the dye and the translucent luster of polyester under light. Meanwhile, when dyeing bright polyester yarn, the dye molecules diffuse into the fiber and fix therein, rather than adhering to the surface, resulting in good dyeing uniformity and excellent color fastness.

[0023] In some embodiments, the color of the dye ink used to dye the primary color yarn may include one or more of black, cyan, magenta, and yellow. The dyed yarn may be dyed using a single dye ink to produce a solid color yarn. Alternatively, the dyed yarn may be a multi-color yarn with a combination of multiple colors. For example, by precisely controlling the spraying process of a real-time dyeing device, different colors can be sprayed onto different segments of the primary color yarn. Furthermore, by varying the proportions of single-color dye inks, multi-colored dyed yarns (e.g., mixing different proportions of four-color dye inks can achieve 10,000 to 100,000 color variations) can be prepared, for example, giving the dyed yarn a color gradient effect, thereby enhancing the color richness of the fabric.

[0024] The above-mentioned dye inks can be environmentally friendly dye inks. For example, environmentally friendly black dye inks may include Genesta, XKS 2000, MI-2000, Sb54, Sb310, Sb410, Black P5400, LYOSPERSE GP, etc. Environmentally friendly cyan dye inks may include XKS 700, XKS-702, VIAGCION, etc. ® Examples of suitable dyeing inks include COLORFUL-XY220 and Cyan P5100. Magenta dyeing inks include XKS 400, MI-400, MI-500, and Magenta P5200. Yellow dyeing inks include XKS100, XKS-203, PJ-2RN, and Yellow P5300. Using environmentally friendly dyes ensures zero wastewater and waste discharge during the dyeing process, meeting green production standards.

[0025] The dyed yarn used in this application is obtained through real-time dyeing, which means that the color of the yarn is not limited to a single color and can achieve any combination of colors, thereby giving the fabric a variety of colors and rich color transformation effects to meet the diverse and personalized needs of the market / users.

[0026] In some embodiments, the dyed yarn can be used after real-time dyeing and finishing (e.g., waterproof finishing, UV protection finishing, etc.). In other embodiments, the undyed yarn can be directly fed to a computerized flat knitting machine for weaving the fabric after real-time dyeing. For example, the real-time dyeing equipment also has functions such as color fixing, cleaning, and lubrication. A single undyed yarn is fed to the real-time dyeing equipment for dyeing, color fixing, cleaning, and lubrication in one go, and then output directly to the computerized flat knitting machine for weaving. Real-time acquisition of dyed yarn avoids the need for spare yarn of different colors, and enables multiple color changes without limitation, with smooth transitions.

[0027] In some embodiments, the computerized flat knitting machine can be a double-needle-bed computerized flat knitting machine, including a front needle bed and a back needle bed. When knitting the first layer, the front needle bed and the back needle bed can alternately perform spaced-needle face knitting and spaced-needle bottom knitting using the dyed yarn. For example, the spaced-needle face knitting is performed using the front needle bed, and the spaced-needle bottom knitting is performed using the back needle bed. The spaced-needle face knitting and spaced-needle face knitting are performed with alternating needles. For example, assuming that one knitting row of the fabric has N needle positions (i.e., the number of fabric rows is N), and both the spaced-needle face knitting and the spaced-needle bottom knitting occupy M needle positions, then the knitting row can be divided into N / M parts. These parts are adjacent to each other in the form of "face knitting - spaced-needle / empty-needle - bottom knitting - spaced-needle / empty-needle - face knitting - spaced-needle / empty-needle - bottom knitting" to form a complete knitting row. The spaced-needle face knitting forms the first face layer of the first layer, and the spaced-needle bottom knitting forms the first bottom layer of the first layer. Additionally... When the bottom layer of the first layer, formed by the spaced-needle bottom knitting, is turned from the back needle bed to the front needle bed during the knitting of the second layer, the front and back needle beds can alternately perform spaced-needle bottom knitting and spaced-needle top knitting using the dyed yarn. Similarly, a complete knitting row consists of adjacent sections of "bottom knitting - spaced-needle / empty-top knitting - spaced-needle / empty-bottom knitting - spaced-needle / empty-top knitting". The spaced-needle bottom knitting forms the second bottom layer of the second layer, and the spaced-needle top knitting forms the second top layer of the second layer. Furthermore, the top knitting loops of the second top layer formed by the spaced-needle top knitting are turned from the front needle bed to the back needle bed. The turning-needle actions during this alternating knitting process prevent different layers from interlocking and failing to form layered fabric. For example, the turning-needle actions of the first bottom layer and the second top layer are to prevent the loops from becoming entangled and interlocking, thus preventing the formation of layered fabric.

[0028] In the aforementioned double-layer fabric, the face knit of each layer (or the front needle bed knitting portion) will form a raised structure on the fabric. Correspondingly, the bottom knit of each layer (or the back needle bed knitting portion) will form a recessed structure on the fabric. The raised and recessed structures will form a cyclical pattern due to the alternating alternating needle face knitting and needle bottom knitting. For example, the number of needles between the alternating needle face knitting and needle bottom knitting can be at least 1 stitch. For example, the number of needles can be 1, 2, 3, etc. Different numbers of needles will result in different spacing widths between the recessed and raised structures of the fabric. The needles corresponding to the number of needles do not participate in loop formation and have no loop coverage, serving as a blank transition zone between the recessed and raised structures. The fabric will form a periodic three-dimensional texture of "raised structure - blank spacer - recessed structure - blank spacer - raised structure" on the surface layer. In some implementations, the number of needles between the alternating needle face knitting and the needle bottom knitting is 1 stitch.

[0029] The number of spacer stitches in the above-described spacer face knitting and / or spacer bottom knitting can be at least 1. For example, the number of spacer stitches can be 1, 2, 3, etc. Spacer knitting can reduce the coil density, allowing the coils to have a certain deformation space. The interlaced coil structure resulting from the alternating operation of the aforementioned spacer face knitting and spacer bottom knitting allows each coil to be simultaneously restrained by the lateral and longitudinal directions of the adjacent coils, enabling the fabric to contract in a normal state (i.e., a state without stress). That is, the protruding structure will compress the concave structure, causing it to be hidden. When the fabric stretches under stress, the concave structure will be exposed. In some embodiments, the number of spacer stitches in the spacer face knitting and / or spacer bottom knitting can be 1 stitch, the spacer face knitting includes 1-space-1-face knitting, and the spacer bottom knitting includes 1-space-1-bottom knitting. 1-space-1-face knitting can achieve uniform elasticity and stretchability, suitable for most fabrics. In the above knitting process, the first knitting needle position and the first spacer needle position of the spacer face are respectively aligned with the second spacer needle position and the second knitting needle position of the spacer bottom when knitting adjacent layers. For example, when knitting the first layer, the first knitting needle position of the spacer face is opposite to the second spacer needle position of the spacer bottom when knitting the second layer before or after it, and the first spacer needle position of the spacer face when knitting the first layer will be opposite to the second knitting needle position of the spacer bottom when knitting the second layer before or after it. That is, an empty needle position when knitting one layer will be used when knitting another layer before or after it. Alternatively, the above description can also be described as double-needle-bed spacer alignment knitting, which, combined with the dyed yarn, can present different colors on the face knitting loops and the bottom knitting loops of the fabric. For example, the front needle-bed knitting portion will present the color of the dyed yarn fed into the front needle bed, while the back needle-bed knitting portion will present the color of the dyed yarn fed into the back needle bed.

[0030] The aforementioned fabric is knitted using a double-needle-bed computerized flat knitting machine in a reciprocating motion. The first layer is woven in the preceding unidirectional knitting stroke, and the second layer is woven in the following opposing unidirectional knitting stroke. The two layers intersect at the stroke transition point, thus forming a loop-shaped fabric. (Reference) Figure 2 The exemplary structural diagrams of the fabrics according to some embodiments of this application are shown, such as... Figure 2 The schematic cross-sectional view of the fabric shown includes a first layer F and a second layer S. Each layer has recessed structures D and raised structures P. The combination of these two is also referred to as a channel structure. When the dyed yarns are multiple, for example, when the front needle bed uses surface yarns and the back needle bed uses underlayer yarns, the fabric can exhibit different colors for the surface and underlayer. For example, when the surface yarn is red and the underlayer yarn is yellow, the raised structures of the fabric can be red, and the recessed structures can be yellow.

[0031] In some embodiments, the dyed yarn may be formed by combining a first dyed yarn and a second dyed yarn. The first yarn may cover the second yarn, and the first dyed yarn and the second dyed yarn are different colors. For example, the first dyed yarn and the second dyed yarn can be fed simultaneously through a yarn feeder, and the covering effect is achieved by controlling the feeding position and tension of the first dyed yarn and the second dyed yarn. Thus, during face knitting, the face knitting area of ​​the fabric (i.e., the front needle bed knitting portion) will exhibit the color effect of the first dyed yarn. During bottom knitting, the bottom knitting area of ​​the fabric (i.e., the back needle bed knitting portion) will exhibit the color effect of the second dyed yarn. This creates a knitting effect with "different colors for the face and bottom." (See reference) Figure 3 and Figure 4 The illustrated diagram shows an exemplary state of a fabric according to some embodiments of this application, such as... Figure 3 As shown, when the fabric is in its normal state (i.e., under no stress), it shrinks, and the protruding structure P will compress the concave structure D, thus hiding the concave structure D. Therefore, the fabric will exhibit the color effect of the first dyed yarn. Figure 4As shown, when the fabric is under stress, the raised structure P will stretch, thus revealing the compressed concave structure D. At this time, the raised structure P of the fabric will exhibit the color effect of the first dyed yarn, and the concave structure D will exhibit the color effect of the second dyed yarn. In this way, the fabric can form two different color effects on one layer. When these two color effects are a gradient effect, the fabric can present a variety of color effects. In addition, the tufted yarn has higher strength and durability, and in terms of appearance, it has higher smoothness and luster, which can effectively improve the quality of the fabric. At the same time, weaving the fabric using a single tufted yarn eliminates the need to consider the shrinkage rate difference of multiple yarns, reducing the cost of raw materials and equipment setup.

[0032] refer to Figure 5 The exemplary weaving diagrams of fabrics according to some embodiments of this application illustrate an exemplary weaving process for said fabrics. Figure 5 As shown, yarns A and B can be high-strength polyester embroidery threads for real-time printing. Yarns A and B are fed synchronously by a yarn feeder, with yarn A being the main yarn and yarn B being the feeder. The arrows indicate the direction of the machine head movement.

[0033] The specific weaving techniques include: The first row is knitted with yarn A over yarn B, alternating between 1 empty stitch and 1 blank stitch. Some stitches are knitted with yarn A over yarn B, alternating between 1 empty stitch and 1 blank stitch.

[0034] The second and third rows are the stitch-shifting and loop-shifting actions where the stitches at the bottom of the back needle bed are turned onto the front needle bed.

[0035] The fourth row is a 1-row, 1-sided knitting pattern with one empty stitch between the stitches of the second and third rows, and a 1-row, 1-bottom knitting pattern with one empty stitch between the stitches of the un-turned rows.

[0036] Rows 5 and 6 are the stitch-shifting and loop-transferring actions where the knitting loops corresponding to the front needle bed are transferred to the back needle bed.

[0037] Rows 1 to 6 form a minimum cycle unit, where rows 1 to 3 perform one layer of weaving, and rows 4 to 6 perform another layer of weaving. Rows 7 through 12 are repeats of rows 1 through 6.

[0038] In the above exemplary weaving process, the same yarn feeder (yarn feeder) is used to simultaneously feed A yarn and B yarn, which are dyed in real time and have different colors / color variations, into the warp yarns for weaving. During face weaving, A yarn covers B yarn, and only the color of A yarn is visible. During back weaving, B yarn covers the color of A yarn, and only the color of B yarn is visible, thus creating a weaving effect of "different colors for the face and back".

[0039] The weaving method for fabrics provided in this application enables the achievement of different color variations on the same layer of a three-dimensional fabric. This color variation effect is achieved through real-time dyeing of yarns. Real-time dyeing can incorporate preset color patterns, combinations of multi-color lines, or gradient color combinations onto the dyed yarns, making it widely applicable. When a fabric needs to exhibit gradient colors, real-time dyeing of yarns can provide extremely natural and smooth color changes, avoiding the abruptness caused by using pre-dyed combinations of multiple yarns.

[0040] This application also provides a fabric obtained based on the above-described weaving method. In some embodiments, the fabric may be a bag-shaped fabric, including a bag body that is closed at the bottom and open at the top, and a handle connecting the bag body. The bag is integrally woven using a computerized flat knitting machine based on the aforementioned weaving method. Currently, the production of traditional bags suffers from problems such as complex and inconsistent processes, and poor structural stability. The production of traditional bags requires multiple independent processes such as cutting, weaving, sewing, hemming, and accessory installation. These processes are cumbersome and time-consuming, resulting in long production cycles and high labor and time costs. Moreover, the above processes, especially sewing, often lead to problems such as unraveling and cracking at the seams of the bag, especially under heavy loads (such as at the connection between the handle and the bag body). This application uses a computerized flat knitting machine to form all parts of the bag, including the bag body, handle, and pockets, in one piece without splicing. This avoids the problem of cracking at the seams of traditional sewn bags, resulting in a continuous and strong overall structure with a longer service life. At the same time, the integral molding process ensures the aesthetics and integrity of the bag.

[0041] Based on dyed yarn obtained through real-time dyeing during weaving, the bags can display a variety of colors. Compared to traditional colored bag production, the yarn dyeing process consumes a large amount of water resources and generates industrial wastewater containing dyes and auxiliaries, seriously polluting the environment. Furthermore, the dyed yarn has a fixed color, making it difficult to achieve personalized color matching. The real-time dyeing yarn used in this application uses environmentally friendly water-based inks during the dyeing process, generating no industrial wastewater and avoiding pollution, thus aligning with environmental protection trends. Simultaneously, the dyed yarn can flexibly achieve various color patterns and color combinations according to requirements, eliminating the need for color swatches and batch dyeing. This allows for rapid response to personalized customization needs, meeting the aesthetic demands of different consumers and enhancing product competitiveness. In addition, the combination of integrated molding on a computerized flat knitting machine and real-time dyeing yarn eliminates cumbersome processes such as dyeing, cutting, and sewing, significantly simplifying the production process, greatly improving production efficiency, and significantly reducing time and labor costs.

[0042] The bag-shaped fabric disclosed in this application can achieve a variety of colors because the aforementioned weaving method uses real-time printed dyed yarns. Exemplarily, but not limitingly, the bag-shaped fabric can present a color gradient effect from bottom to top (e.g., from the bag body to the handle), transitioning from blue, pink, yellow to cyan. Alternatively, the bag-shaped fabric can present a color gradient effect from top to bottom, transitioning from green, yellow, pink to white. Or, the bag-shaped fabric can present a color gradient effect from top to bottom, transitioning from dark blue, red, orange-red to yellow. Because it utilizes real-time dyed yarns for weaving, unlimited color changes can be achieved, greatly enhancing the visual appeal and personalization needs of the bag-shaped fabric.

[0043] The bag-shaped fabric provided in this application, due to the aforementioned weaving method, forms spaced-apart recessed and raised structures. When empty (e.g., without an object inside), the bag-shaped fabric is in a contracted state, and its outer surface exhibits a first color effect of the raised structures; when in use (e.g., with an object such as a mobile phone inside), the bag-shaped fabric is in an expanded state, and its outer surface exhibits both the first color effect of the raised structures and a second color effect of the recessed structures. (Reference) Figure 6 and Figure 7 An exemplary state diagram of the bag-shaped fabric is shown. Figure 6 The shrunken state of the bag-shaped fabric is shown. Figure 7 The diagram shows the open state of the bag-shaped fabric. (Example) Figure 6 and Figure 7 As shown, when the bag-shaped fabric contracts, the color gradient effect on its outer surface is the color effect of the raised structure P, for example, a color gradient from dark blue to orange-red. The color effect of the recessed structure D is hidden. When the bag-shaped fabric expands, its outer surface exhibits two color effects: one is the color effect of the raised structure P, and the other is the color effect of the recessed structure D, for example, a color gradient from orange-red to yellow. This change is hidden when the bag-shaped fabric contracts but becomes apparent when it expands. This allows the bag-shaped fabric to achieve a harmonious interplay of two color effects, such as two color gradients.

[0044] The following is an exemplary description of a weaving apparatus for realizing the fabric.

[0045] The weaving apparatus for the fabric may include a real-time dyeing device, a computerized flat knitting machine, and a control device. These three components can communicate with each other. For example, the real-time dyeing device can receive control commands from the control device to dye the raw yarn. The three components can interact via bus-level communication or electrical signal-level communication. Examples include, but are not limited to, fieldbus (e.g., PROFIBUS, MODBUS, DeviceNet, CANopen, etc.), Ethernet (e.g., EtherNet / IP, PROFINET, EtherCAT, Modbus TCP, etc.), wireless communication (e.g., Wi-Fi™, Bluetooth™, ZigBee™, LoRa™, etc.), serial communication (e.g., RS-232, RS-485, etc.), parallel communication, fiber optic communication, OPC (OLE for Process Control), Internet of Things (IIoT) protocols (e.g., MQTT, AMQP, CoAP, etc.), Time-Sensitive Networking (TSN), 5G networks, etc.

[0046] A real-time dyeing device can dye undyed yarn in real time and then feed the dyed yarn to a computerized flat knitting machine for weaving to obtain the fabric. The dyeing of the undyed yarn can be based on instructions from a control device. For example, the control device can embed information such as the length of the dyeing yarn and the dyeing color into a control instruction and send it to the real-time dyeing device. Upon receiving the control instruction, the real-time dyeing device will initiate the dyeing of the undyed yarn, such as white yarn.

[0047] The real-time dyeing equipment may include exemplary structures such as nozzles, inkjet channels, and ink storage chambers. Dye ink can be placed in the ink storage chamber and, during use, is ejected from the nozzles through the inkjet channels, adhering to the primary color yarn. Dyeing is then completed after operations such as color fixing, cleaning, and lubrication. Color fixing can be performed using a color fixing structure such as a hot air circulation heating structure; cleaning can be performed using a multi-stage spray cleaning structure or an ultrasonic cleaning structure; and lubrication can be performed using an electrostatic spray lubrication structure. These structures can be sequentially arranged along the yarn transport path. After the primary color yarn undergoes the above steps, dyed yarn suitable for weaving is obtained. In some embodiments, this real-time dyeing equipment can be implemented using a Coloreel ITCU.

[0048] Computerized flat knitting machines can perform one-piece knitting of bags. For example, a computerized flat knitting machine can knit the fabric based on control instructions containing knitting process data sent by a control device. For instance, a computerized flat knitting machine can use dyed yarn transmitted in real time to knit all components of the fabric, such as the bag body, handles, and pockets, in a single operation, giving it a three-dimensional structure and multiple color effects.

[0049] The control device can be implemented using components with computing power. Examples include computers, industrial PCs, main control chips (e.g., ARM, DSC, DSP, etc.), programmable logic controllers (PLCs), programmable logic devices (PLDs), and microcontrollers (MCUs). In some embodiments, the control device can be a separate component or integrated with a real-time dyeing device or a computerized flat knitting machine. For example, the real-time dyeing device may have components with related control functions that can be used to implement the control device.

[0050] The above three processes work together to simultaneously weave the fabric. No pre-dyeing of the yarn is required, nor is cutting and sewing necessary, enabling green and intelligent production of the fabric.

[0051] The fabric provided in this application is woven into a single unit using a computerized flat knitting machine and dyed yarns that are dyed in real time. It has a multi-layered color change effect and can achieve integrated production of "color patterns + three-dimensional structure + individual bags". It has high production efficiency, low production cost and can meet various color and individual needs.

[0052] This application has described the basic concepts. Obviously, for those skilled in the art, the above detailed disclosure is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore such modifications, improvements, and corrections still fall within the spirit and scope of the exemplary embodiments of this application.

[0053] Furthermore, this application uses specific terms to describe its embodiments. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this application do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application can be appropriately combined.

[0054] Furthermore, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this application are not intended to limit the order of the processes and methods of this application. Although the foregoing disclosure has discussed some currently considered useful embodiments of the invention through various examples, it should be understood that such details are for illustrative purposes only, and the appended claims are not limited to the disclosed embodiments; rather, the claims are intended to cover all modifications and equivalent combinations that conform to the substance and scope of the embodiments of this application. For example, while the system components described above can be implemented using hardware devices, they can also be implemented solely through software solutions, such as installing the described system on existing servers or mobile devices.

[0055] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments of the invention, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0056] Finally, it should be understood that the embodiments described in this application are merely illustrative of the principles of the embodiments of this application. Other modifications may also fall within the scope of this application. Therefore, alternative configurations of the embodiments of this application are considered as examples and not limitations, and are regarded as consistent with the teachings of this application. Accordingly, the embodiments of this application are not limited to the embodiments explicitly described and illustrated in this application.

Claims

1. A fabric, characterized in that, This includes recessed and raised structures arranged at intervals based on a woven structure; among which, When the fabric is in a shrunken state, the raised structure partially or completely covers the recessed structure, and the outer surface of the fabric presents the first color effect of the raised structure. When in use, the fabric is in an extended state, the recessed structure is exposed, and the outer surface presents a first color effect of the raised structure and a second color effect of the recessed structure.

2. The fabric according to claim 1, characterized in that, The fabric includes a first layer and a second layer. The first layer includes a first surface layer and a first bottom layer, and the second layer includes a second bottom layer and a second surface layer.

3. The fabric according to claim 1 or 2, characterized in that, The fabric has a bag-like structure, including a bag body that is closed at the bottom and open at the top, and a handle that connects to the bag body.

4. A method for weaving the fabric as described in any one of claims 1-3, wherein the weaving method is implemented on a computerized flat knitting machine; characterized in that, The weaving method includes: Alternately weave the first layer and the second layer; wherein, When knitting the first layer, the front needle bed and the back needle bed use dyed yarn to alternately knit the side surface and the bottom surface to form the first surface layer and the first bottom layer of the first layer; the bottom knitting loops of the first bottom layer are turned from the back needle bed to the front needle bed; When knitting the second layer, the back needle bed and the front needle bed alternately use the dyed yarn to knit the spaced-needle bottom and the spaced-needle surface to form the second bottom layer and the second surface layer of the second layer; the surface knitting loops of the second surface layer are turned from the front needle bed to the back needle bed; The first knitting needle position and the first spacer needle position of the spacer needle surface are aligned with the second spacer needle position and the second knitting needle position of the spacer needle bottom when knitting on adjacent layers.

5. The weaving method according to claim 4, characterized in that, The number of stitches in the spacer face knitting and / or the spacer bottom knitting is at least 1.

6. The weaving method according to claim 5, characterized in that, The needle-separating surface knitting includes one open and one open surface knitting, and the needle-separating bottom knitting includes one open and one bottom knitting.

7. The weaving method according to claim 4, characterized in that, The alternating knitting of the face and the bottom is performed with a spacer stitch, and the number of spacer stitches is at least 1.

8. The weaving method according to claim 4, characterized in that, The dyed yarn is obtained by dyeing the original color yarn in real time.

9. The weaving method according to claim 4, characterized in that, The dyed yarn includes solid color yarn or multicolor yarn with multiple color combinations.

10. The weaving method according to claim 4, characterized in that, The dyed yarn is formed by wrapping a first dyed yarn and a second dyed yarn together; wherein the first dyed yarn covers the second dyed yarn, and the first dyed yarn and the second dyed yarn are different colors.

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