A double-weft gradual color display weaving method of double-warp four-weft jacquard fabric

Abstract

This application provides a method for weaving a double-weft gradient color-developing jacquard fabric, belonging to the field of jacquard fabric weaving technology. The method uses a warp yarn combination consisting of warp A (J1) and warp B (J2), and a weft yarn combination consisting of weft A (W1), weft B (W2), weft C (W3), and weft D (W4) as the implementation objects. Any two sets of weft yarns exhibit gradient color development on the fabric surface, while the other two sets of weft yarns remain uncolored on the inner backing layer. Based on the principle of double-layer structure configuration, the method establishes a double-weft gradient color-developing structural model, designs the surface color-developing structure, the inner backing structure, the relationship between the fabric surface and inner layers, the combination structure process, the digital pattern, and the combination structure diagram. Finally, by designing the weaving parameters and weaving according to the combination structure diagram, a jacquard fabric with double-weft gradient color development under the double-warp four-weft jacquard structural model can be obtained. The double-warp four-weft fabric obtained by the above method can achieve the effect of double-weft gradient color development.

Description

Technical Field

[0001] This application relates to a method for weaving a double-weft gradient color-developing fabric of a double-warp four-weft jacquard fabric, belonging to the field of jacquard fabric weaving technology. Background Technology

[0002] The invention and practice of the layered combination design pattern directly correlates the colors in digital patterns with the holographic structures in the holographic organization library formed under the layered combination design pattern, and applies this to the development of novel jacquard fabrics. This overcomes the limitations of the traditional single-planar design pattern for jacquard fabrics, such as the limitations in fabric structure shaping and color expression. The bidirectional multi-set yarn configuration structure can solve the problem of the small color gamut of the unidirectional multi-set yarn configuration color model, thus extending to the double-weft gradient color rendering method under the double-warp three-weft structure model. However, the jacquard structure model determines the number of color-rendering yarn sets, thereby determining the fabric's color rendering effect. Based on this, the double-warp three-weft structure model still has some shortcomings in color rendering. Currently, there is no literature on the double-weft gradient color rendering weaving method for double-warp four-weft jacquard fabric structures.

[0003] Based on this, this application is made. Summary of the Invention

[0004] In view of this, this application provides a double-weft gradient color-developing weaving method for double-warp four-weft jacquard fabrics, which, combined with a layered combination design mode, enables the combination gradient color development of any two sets of weft threads on the fabric surface, giving the fabric a more complete color expression.

[0005] Specifically, this application is implemented through the following scheme:

[0006] A method for weaving a double-weft gradient color-developing fabric using a double-warp, four-weft jacquard weave, comprising the following steps:

[0007] Step 1, Construct the structural model:

[0008] The fabric has two sets of warp threads arranged in the warp direction, namely warp A (J1) and warp B (J2), arranged from left to right in a 1:1 ratio. The fabric also has four sets of weft threads arranged in the weft direction, namely weft A (W1), weft B (W2), weft C (W3), and weft D (W4), arranged from top to bottom in a 1:1:1:1 ratio. Only two sets of weft threads interweave with one set of warp threads on the fabric surface to display color, while the other two sets of weft threads interweave with another set of warp threads on the back of the fabric as a backing. This creates several double-warp, four-weft jacquard structures with a double-weft gradient color-changing pattern.

[0009] Step 2, Surface color combination design:

[0010] Twill or satin weave from the three primary weave structures are selected as basic weave I and basic weave II, both of which are weft or warp weave structures, and they have the same number of repeats, N (5≤N≤48, where N is an integer), and the same number of loops S (S is an integer), but different starting points. Basic weave I and basic weave II are used to design surface color-developing weave I and surface color-developing weave II, arranged in a 1:1 ratio from top to bottom according to the relative order of the weft threads to form the surface color-developing combination structure. The number of basic weave structures Q can be selected. B The number of tissue cycles N and the number of fly numbers S and Q when the number of tissue cycles is N. NSN The decision is made regarding the number of selectable organizations, whereby the basic organization I is Q. BI =N×Q NSN The number of selectable organizations corresponding to Basic Organization II is Q. BII = (N-2), the number of optional basic organizations Q B =Q BI ×Q BII Based on Basic Structure I and Basic Structure II, corresponding full-color technology point structures are set. Specifically, based on Basic Structure I, a full-color technology point structure is designed for Basic Structure II by reversing the structure points of Basic Structure I and using the reversed structure point as the starting point to strengthen one structure point upward along the warp direction. Based on Basic Structure II, a full-color technology point structure is designed for Basic Structure I by reversing the structure points of Basic Structure II and using the reversed structure point as the starting point to strengthen one structure point downward along the warp direction.

[0011] Using basic tissue I as the initial tissue and its full-color rendering technique point tissue as the final tissue, a basic tissue I illuminating tissue library is designed by increasing / decreasing tissue points while avoiding full-color rendering technique points; this is the surface color rendering tissue library I. Simultaneously, using basic tissue II as the initial tissue and its full-color rendering technique point tissue as the final tissue, a basic tissue II illuminating tissue library is designed by increasing / decreasing tissue points while avoiding full-color rendering technique points; this is the surface color rendering tissue library II. Surface color rendering tissue library I and surface color rendering tissue library II together constitute the surface color rendering tissue library. One tissue is taken from each of surface color rendering tissue library I and surface color rendering tissue library II, and combined from top to bottom in a 1:1 ratio to form the combined tissue, which is the surface color rendering combined tissue with double-warp four-weft jacquard structure and double-weft gradient color rendering.

[0012] Let the rate of increase of tissue points be M, where 1 ≤ M ≤ N, and M is an integer. When M = N, the number of tissues in surface chromogenic tissue library I and surface chromogenic tissue library II is minimized, both being (N-2), and the corresponding number of surface chromogenic combination tissues formed is minimized, also being (N-2). 2When M=1, the surface chromogenic tissue library I and surface chromogenic tissue library II have the largest number of tissues, both being (N-2)+(N-3)×(N-1), corresponding to the largest number of surface chromogenic combination tissues formed, which is [(N-2)+(N-3)×(N-1)]. 2 indivual.

[0013] Step 3, Inner backing tissue design:

[0014] Based on the requirements for selecting the surface color-developing tissue and the inner backing tissue in the double-layer structure design, the tissue cycle number of the inner backing tissue is the same as or an integer multiple of the tissue cycle number of the surface color-developing tissue.

[0015] In the double-latitude gradient, besides the two sets of surface wefts, the remaining two sets of inner wefts interweave with the inner warp. Based on the double-weft weave design method, and according to the order of the weft lines, inner backing weave I and inner backing weave II are formed respectively. These are then combined and superimposed in a 1:1 ratio to form a combined weave. The number of possible combinations for inner backing weave I and inner backing weave II is Q. b Arrange the weave repeat numbers N, divisors of N, and integer multiples of N from left to right, in order from weft to warp, with a quantity of n. The weave repeat number of the i-th weave is N, which is either N or a divisor (not equal to 1) or an integer multiple of N. i The number S of an organization whose i-th organization has a cycle number of N or a divisor (not equal to 1) or an integer multiple thereof. i Quantity is

[0016] Step 4, Design of the relationship between the outer and inner layers of the fabric:

[0017] The outer and inner layers of a fabric can be either unjoined or joined.

[0018] When the outer and inner layers are not joined, when viewed from the right side of the fabric, the outer warp is always above the inner weft, while the inner warp is always below the outer weft.

[0019] When the outer and inner layers are joined, when viewed from the front of the fabric, the number of cycles of the joining structure is the same as or an integer multiple of the number of cycles of the color-developing structure in the outer layer. The color-developing combination structure in the outer layer is formed by combining and strengthening the basic structure I and the basic structure II. In order to facilitate the covering of the joining structure points, the self-joining method is selected to fix the outer and inner layers of the fabric.

[0020] At this point, within a fabric weave cycle, the distribution of the joining points should be uniform, and the distribution direction of the joining points should be consistent with the distribution direction of the joining points in surface color-developing weave I, surface color-developing weave II, or surface color-developing combination weave. Looking at the fabric from the right side, when using the warp-faced weft joining method, the joining point is designed as a warp joining point. Therefore, the joining points on the left and right adjacent face warps, or at least one face warp, of the warp where the joining point is located must be warp joining points, thus ensuring that the joining point between the warp and face weft is always covered by the face warp. When using the face warp-faced weft joining method, the joining point is designed as a weft joining point. Therefore, the joining points on the upper and lower adjacent face wefts, or at least one face weft, of the warp where the joining point is located must be weft joining points, thus ensuring that the joining point between the face warp and face weft is always covered by the face weft. When using the combined joining method, both the warp-faced weft joining method and the face warp-faced weft joining method are required simultaneously.

[0021] The number of connection location organization configuration methods is Q. S When the surface layer and the inner layer are not bonded, Q NS =1; When the outer layer and inner layer are joined, and the number of weave repeats of the joining structure is N or a divisor of N (not equal to 1) or an integer multiple of N, the number of possible combinations of the number of joining weft points for the outer warp and inner weft joining structure is Q. FSP The number of possible combinations of warp and weft connection points in the weft-inner band is Q. BSP ,satisfy:

[0022]

[0023] Step 5, Design the organizational process:

[0024] Set the longitudes J1 and J2 of A to be arranged from left to right in a 1:1 ratio, and the latitudes W1 of A, W2 of B, W3 of C, and W4 of D to be arranged from top to bottom in a 1:1:1:1 ratio.

[0025] At the intersection of the surface warp and surface weft, surface color-developing structure I and surface color-developing structure II are arranged in the order of the weft lines. At the intersection of the inner warp and inner weft, inner backing structure I and inner backing structure II are arranged. At the intersection of the surface warp and inner weft, all the warp lines are raised, i.e., warp weaving points are set. At the intersection of the inner warp and surface weft, all the warp lines are lowered, i.e., weft weaving points are set.

[0026] If the outer layer and the inner layer are not connected, the position where the outer warp and the inner weft intersect is configured with warp float length, and the position where the inner warp and the outer warp intersect is configured with weft float length.

[0027] If the outer layer and the inner layer are joined, when using the inner warp and outer weft joining method, the inner warp and outer weft joining structure is configured at the intersection of the inner warp and outer weft; when using the outer warp and inner weft joining method, the outer warp and inner weft joining structure is configured at the intersection of the outer warp and inner weft; when using the combined joining method, the inner warp and outer weft joining structure is configured at the intersection of the inner warp and outer weft, and the outer warp and inner weft joining structure is configured at the intersection of the outer warp and inner weft.

[0028] Based on the characteristics of the double-warp four-weft jacquard structure model with double-weft gradient color development, the combination and weaving design of each structural model is completed in sequence, with a maximum number of combination and weaving structures of 12×Q. B ×[(N-2)+(N-3)×(N-1)] 2 ×Q b ×Q S indivual.

[0029] Step Six, Digital Pattern Design:

[0030] Design digital patterns in computer bitmap mode. The subject matter of the digital pattern is arbitrary. Select colors and design a series of gradient colors based on each color. The number of levels in any series of gradient colors must be less than or equal to the maximum number of light and shadow elements in either surface color library I or surface color library II, which is (N-2) + (N-3) × (N-1). The gradient effects in each series of digital patterns do not overlap. The maximum number of colors is 12 × [(N-2) + (N-3) × (N-1)]. 2 indivual.

[0031] Step 7, Design of the composite structure diagram:

[0032] The surface color-developing structures I and II, formed by the interweaving of the surface warp and weft, the inner backing structure formed by the interweaving of the inner warp and weft, the surface warp and inner weft tiered structures formed by the interweaving of the surface warp and inner weft or the warp floats formed without interweaving, and the inner warp and surface weft knot structures formed by the interweaving of the inner warp and surface weft or the weft floats formed without interweaving are combined according to the jacquard structure model. Among them, any series of gradient colors corresponds to each shadow light structure in the surface color-developing structure library I and the surface color-developing structure library II. After being laid out one by one, a double-weft gradient color-developing combination structure diagram under the double-warp four-weft jacquard structure is formed.

[0033] Step 8, Weaving:

[0034] Add warp and weft selection information to the double-warp four-weft jacquard structure diagram, set the warp and weft densities, select two sets of warp threads and four sets of weft threads, and use the combination structure diagram obtained in step seven for weaving to obtain a double-warp four-weft jacquard fabric with double-weft gradient color display characteristics.

[0035] The above weaving method uses two sets of warp threads and four sets of weft threads to interweave. Any two sets of weft threads and one set of warp threads interweave on the surface of the fabric to express a gradient color effect. The other two sets of weft threads and another set of warp threads interweave on the inner layer of the fabric as a backing and do not show color on the surface of the fabric. It follows the design requirements of a double-layer structure, thus completing the double-weft gradient color structure design of the double-warp four-weft jacquard fabric.

[0036] Furthermore, as a preferred option:

[0037] In step one, there are twelve dual-dimensional gradient color rendering structure models:

[0038] 1) When warp A J1 is the color-developing surface warp, and it is interwoven with weft A W1 and weft B W2 as color-developing surface wefts on the fabric surface to develop color, warp B J2 as the backing warp and weft C W3 and weft D W4 as the backing wefts are interwoven on the back of the fabric to form a backing.

[0039] 2) When warp A J1 is the color-developing surface warp, and it is interwoven with weft A W1 and weft C W3 as color-developing surface wefts on the fabric surface to develop color, warp B J2 as the backing warp and weft B W2 and weft D W4 as the backing wefts are interwoven on the back of the fabric to form a backing.

[0040] 3) When warp A J1 is the color-developing surface warp, and it is interwoven with weft A W1 and weft D W4 as color-developing surface wefts on the fabric surface to develop color, warp B J2, which is the backing warp, is interwoven with weft B W2 and weft C W3 as backing wefts on the back of the fabric to form a backing.

[0041] 4) When warp A J1 is the color-developing surface warp, and it is interwoven with weft B W2 and weft C W3 as color-developing surface wefts on the fabric surface to develop color, warp B J2 as the backing warp and weft A W1 and weft D W4 as the backing wefts are interwoven on the back of the fabric to form a backing.

[0042] 5) When warp A J1 is used as the color-developing surface warp and interweaves with weft B W2 and weft D W4 as the color-developing surface wefts on the fabric surface, warp B J2, used as the backing warp, interweaves with weft A W1 and weft C W3 as the backing wefts on the back of the fabric.

[0043] 6) When warp A J1 is used as the color-developing surface warp and interweaves with weft C W3 and weft D W4 as the color-developing surface wefts on the fabric surface, warp B J2, used as the backing warp, interweaves with weft A W1 and weft B W2 as the backing wefts on the back of the fabric.

[0044] 7) When warp J2 is used as the color-developing warp and interweaves with wefts W1 and W2 as color-developing wefts on the fabric surface, warp J1 as the backing warp and wefts W3 and W4 as the backing wefts interweave on the back of the fabric.

[0045] 8) When warp J2 is used as the color-developing warp and interweaves with wefts W1 and W3 as color-developing wefts on the fabric surface, warp J1 as the backing warp and wefts W2 and W4 as the backing wefts interweave on the back of the fabric.

[0046] 9) When warp J2 is used as the color-developing warp and interweaves with wefts W1 and W4 as color-developing wefts on the fabric surface, warp J1 as the backing warp and wefts W2 and W3 as the backing wefts interweave on the back of the fabric.

[0047] 10) When warp J2 is the color-developing surface warp, and weaves with weft W2 and weft W3 as color-developing surface wefts on the fabric surface to develop color, warp J1 as the backing warp and weft W1 and weft W4 as the backing wefts interweave on the back of the fabric to form a backing.

[0048] 11) When warp J2 is the color-developing surface warp, and weaves with weft W2 and weft W4 as color-developing surface wefts on the fabric surface to develop color, warp J1 as the backing warp and weft W1 and weft W3 as the backing wefts interweave on the back of the fabric to form a backing.

[0049] 12) When warp J2 is the color-developing face warp, and it is interwoven with wefts W3 and W4 as color-developing face wefts on the fabric surface, warp J1 as the backing warp and wefts W1 and W2 as the backing wefts are interwoven on the back of the fabric.

[0050] When designing the surface color development structure, based on the double-weft gradient color development structure model of twelve double-warp four-weft jacquard structures, a total of 12 surface color development structure libraries can be established, namely: surface color development structure library with warp A J1 and weft A W1, weft B W2; surface color development structure library with warp A J1 and weft A W1, weft C W3; surface color development structure library with warp A J1 and weft A W1, weft D W4; surface color development structure library with warp A J1 and weft B W2, weft C W3; and surface color development structure library with warp A J1 and weft B W2, weft D W4. Chromogenic tissue library, surface chromogenic tissue library with warp J1 and latitudes W3 and W4, surface chromogenic tissue library with warp J2 and latitudes W1 and W2, surface chromogenic tissue library with warp J2 and latitudes W1 and W3, surface chromogenic tissue library with warp J2 and latitudes W1 and W4, surface chromogenic tissue library with warp J2 and latitudes W2 and W3, surface chromogenic tissue library with warp J2 and latitudes W2 and W4, surface chromogenic tissue library with warp J2 and latitudes W3 and W4.

[0051] When designing the inner backing structure, any double-warp four-weft jacquard structure model with a double-weft gradient color development structure can form two sets of inner wefts according to the double-weft structure design method, which can create a total of The inner backing tissue has a double-layer structure model, therefore, under the double-layer gradient color development structure model of 12 double-warp four-weft jacquard structures, a total of [number] structures can be formed. A double-layer structure model of the inner backing tissue.

[0052] Taking two sets of latitude and longitude lines arranged in a 1:1 ratio from top to bottom and intersecting with the longitude as an example:

[0053] When the color development warp is J1 (A warp) and the color development weft is W1 (A weft) and W2 (B weft), the warp (J2) and weft (W3) can interweave according to the pattern of inner backing structure I or inner backing structure II. Correspondingly, the warp (J2) and weft (W4) can only interweave according to the pattern of inner backing structure II or inner backing structure I.

[0054] When the colorimetric warp is J1 (A) and the colorimetric weft is W1 (A) and W3 (C), the warp (J2) and weft (W2) can interweave according to the pattern of inner backing structure I or inner backing structure II. Correspondingly, the warp (J2) and weft (W4) can only interweave according to the pattern of inner backing structure II or inner backing structure I.

[0055] When the colorimetric warp is J1 (A) and the colorimetric weft is W1 (A) and W4 (D), the warp J2 (B) and weft W2 (B) can be interwoven according to the pattern of inner backing structure I or inner backing structure II. Correspondingly, the warp J2 (B) and weft W3 (C) can only be interwoven according to the pattern of inner backing structure II or inner backing structure I.

[0056] When the color development warp is J1 (A) and the color development weft is W2 (B) and W3 (C), the warp J2 and the weft W1 can interweave according to the pattern of inner backing structure I or inner backing structure II. Correspondingly, the warp J2 and the weft W4 can only interweave according to the pattern of inner backing structure II or inner backing structure I.

[0057] When the color development warp is J1 (A) and the color development weft is W2 (B) and W4 (D), the warp J2 and the weft W1 can interweave according to the pattern of inner backing structure I or inner backing structure II. Correspondingly, the warp J2 and the weft W3 can only interweave according to the pattern of inner backing structure II or inner backing structure I.

[0058] When the colorimetric warp is J1 (A) and the colorimetric weft is W3 (C) and W4 (D), the warp J2 (B) and weft W1 (A) can interweave according to the pattern of inner backing structure I or inner backing structure II. Correspondingly, the warp J2 (B) and weft W2 (B) can only interweave according to the pattern of inner backing structure II or inner backing structure I.

[0059] When the colorimetric warp is J2 (B) and the colorimetric weft is W1 (A) and W2 (B), the warp (A) and weft (C) can interweave according to the pattern of inner backing structure I or inner backing structure II. Correspondingly, the warp (A) and weft (D) can only interweave according to the pattern of inner backing structure II or inner backing structure I.

[0060] When the colorimetric warp is J2 (B) and the colorimetric weft is W1 (A) and W3 (C), the A warp and B weft can interweave according to the pattern of inner backing structure I or inner backing structure II. Correspondingly, the A warp and D weft can only interweave according to the pattern of inner backing structure II or inner backing structure I.

[0061] When the color development warp is J2 (B) and the color development weft is W1 (A) and W4 (D), the A warp J1 and B weft W2 can interweave according to the pattern of inner backing structure I or inner backing structure II. Correspondingly, the A warp J1 and C weft W3 can only interweave according to the pattern of inner backing structure II or inner backing structure I.

[0062] When the colorimetric warp is J2 (B) and the colorimetric weft is W2 (B) and W3 (C), the A warp J1 and A weft W1 can interweave according to the pattern of inner backing structure I or inner backing structure II. Correspondingly, the A warp J1 and D weft W4 can only interweave according to the pattern of inner backing structure II or inner backing structure I.

[0063] When the colorimetric warp is J2 (B) and the colorimetric weft is W2 (B) and W4 (D), the warp (J1) and weft (W1) can interweave according to the pattern of inner backing structure I or inner backing structure II. Correspondingly, the warp (J1) and weft (W3) can only interweave according to the pattern of inner backing structure II or inner backing structure I.

[0064] When the colorimetric warp is J2 (B) and the colorimetric weft is W3 (C) and W4 (D), the A warp J1 and A weft W1 can interweave according to the pattern of inner backing structure I or inner backing structure II. Correspondingly, the A warp J1 and B weft W2 can only interweave according to the pattern of inner backing structure II or inner backing structure I.

[0065] The working principle and benefits of this application are as follows:

[0066] This application takes the warp yarn combination consisting of warp A (J1) and warp B (J2) and the weft yarn combination consisting of weft A (W1), weft B (W2), weft C (W3), and weft D (W4) as the implementation objects. That is, when two sets of warp yarns interweave with four sets of weft yarns, any two sets of weft yarns will gradually change color on the surface of the fabric, while the other two sets of weft yarns will not change color on the backing layer of the fabric. Based on the configuration principle of double-layer structure, the application establishes a double-weft gradient color-changing structure model of double-warp four-weft jacquard structure, designs the surface color-changing structure, designs the backing structure, designs the relationship between the surface and the inner layers of the fabric, designs the combination structure process, designs the digital pattern, and designs the combination structure diagram. Finally, by designing the weaving parameters and weaving according to the combination structure diagram, a jacquard fabric with double-weft gradient color-changing under the double-warp four-weft jacquard structure model can be woven.

[0067] By applying the aforementioned technical means, jacquard fabrics with double-weft gradient color development under a double-warp, four-weft jacquard structure model can be developed. The two sets of warp threads and four sets of weft threads in the fabric structure jointly participate in the gradient color development, forming 12 series of gradient colors on the fabric surface. Under the constraints of this invention, the 12 series of gradient colors in the digital pattern design can be randomly interspersed. Each series of colors is configured one-to-one with each surface color combination structure in the surface color combination structure library. This enables the design and production of double-weft gradient color-developing jacquard fabrics under a double-warp, four-weft jacquard structure model with various simulation and innovative effects, meeting the requirements of mass production. Attached Figure Description

[0068] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0069] Figure 1 This is a schematic diagram of the structural model of the jacquard fabric in the embodiment;

[0070] Figure 2 The examples illustrate the basic structure of the jacquard fabric and its full-color rendering technique.

[0071] (a) - Basic structure I (left) and its full-color development technique dot structure (right),

[0072] (b) - Basic structure II (left) and its full colorimetric dot structure (right);

[0073] Figure 3 For a surface chromogenic tissue library with the minimum number of latitudinal enhancement levels (M=N),

[0074] (a) - Surface chromogenic tissue library I, (b) - Surface chromogenic tissue library II;

[0075] Figure 4 This is a schematic diagram of the inner backing tissue I in the embodiment;

[0076] Figure 5 This is a schematic diagram of the inner backing tissue II in the embodiment;

[0077] Figure 6 This is a schematic diagram of the weave pattern at the intersection of the outer warp and inner weft in the embodiment;

[0078] Figure 7 This is a schematic diagram of the weft-inner warp-outer warp bonding structure when the outer and inner layers of the fabric are joined in the embodiment.

[0079] Figure 8This is a schematic diagram of the weft weaving point located at the intersection of the inner warp and outer weft in the embodiment;

[0080] Figure 9 for Figure 1 Schematic diagram of the combined organizational process design of the medium-structure model ① with dual-dimensional gradient color development;

[0081] Figure 10 For use Figure 3 The tissue corresponding to serial number 1 in the chromogenic tissue library I and the tissue in the chromogenic tissue library II and Figures 4-8 in accordance with Figure 9 Process laying Figure 1 The partial double-weft gradient color combination tissue library formed after the double-warp four-weft jacquard structure in the middle structural model ①;

[0082] Figure 11 For use Figure 3 The tissue corresponding to serial number 2 in the spectral chromogenic tissue library I and the tissue in the spectral chromogenic tissue library II and Figures 4-8 in accordance with Figure 9 Process laying Figure 1 The partial double-weft gradient color combination tissue library formed after the double-warp four-weft jacquard structure in the middle structural model ①;

[0083] Figure 12 For use Figure 3 The tissue corresponding to serial number 3 in the spectral chromogenic tissue library I and the tissue in the spectral chromogenic tissue library II and Figures 4-8 in accordance with Figure 9 Process laying Figure 1 The partial double-weft gradient color combination tissue library formed after the double-warp four-weft jacquard structure in the middle structural model ①;

[0084] Figure 13 For use Figure 3 The tissue corresponding to serial number 4 in the spectral chromogenic tissue library I and the tissue in the spectral chromogenic tissue library II and Figures 4-8 in accordance with Figure 9 Process laying Figure 1 The partial double-weft gradient color combination tissue library formed after the double-warp four-weft jacquard structure in the middle structural model ①;

[0085] Figure 14 For use Figure 3 The tissue corresponding to serial number 5 in the spectral chromogenic tissue library I and the tissue in the spectral chromogenic tissue library II and Figures 4-8 in accordance with Figure 9 Process laying Figure 1 The partial double-weft gradient color combination tissue library formed after the double-warp four-weft jacquard structure in the middle structural model ①;

[0086] Figure 15 For use Figure 3 The tissue corresponding to serial number 6 in the spectral chromogenic tissue library I and the tissue in the spectral chromogenic tissue library II and Figures 4-8 in accordance with Figure 9 Process laying Figure 1 The partial double-weft gradient color combination tissue library formed after the double-warp four-weft jacquard structure in the middle structural model ①;

[0087] Figure 16 For use Figure 3 The tissue corresponding to serial number 7 in the spectral chromogenic tissue library I and the tissue in the spectral chromogenic tissue library II and Figures 4-8 in accordance with Figure 9 Process laying Figure 1 The partial double-weft gradient color combination tissue library formed after the double-warp four-weft jacquard structure in the middle structural model ①;

[0088] Figure 17 For use Figure 3 The tissue corresponding to serial number 8 in the spectral chromogenic tissue library I and the tissue in the spectral chromogenic tissue library II and Figures 4-8 in accordance with Figure 9 Process laying Figure 1 The partial double-weft gradient color combination tissue library formed after the double-warp four-weft jacquard structure in the middle structural model ①;

[0089] Figure 18 For use Figure 3 The tissue corresponding to serial number 9 in the spectral chromogenic tissue library I and the tissue in the spectral chromogenic tissue library II and Figures 4-8 in accordance with Figure 9 Process laying Figure 1 The partial double-weft gradient color combination tissue library formed after the double-warp four-weft jacquard structure in the middle structural model ①;

[0090] Figure 19 For use Figure 3 The tissue corresponding to serial number 10 in the spectral chromogenic tissue library I and the tissue in the spectral chromogenic tissue library II and Figures 4-8 in accordance with Figure 9 Process laying Figure 1 The partial double-weft gradient color combination tissue library formed after the double-warp four-weft jacquard structure in the middle structural model ①;

[0091] Figure 20 For use Figure 3 The tissue corresponding to serial number 11 in the spectral chromogenic tissue library I and the tissue in the spectral chromogenic tissue library II and Figures 4-8 in accordance with Figure 9 Process laying Figure 1 The partial double-weft gradient color combination tissue library formed after the double-warp four-weft jacquard structure in the middle structural model ①;

[0092] Figure 21 For use Figure 3 The tissue corresponding to serial number 12 in the spectral chromogenic tissue library I and the tissue in the spectral chromogenic tissue library II and Figures 4-8 in accordance with Figure 9Process laying Figure 1 The partial double-weft gradient color combination tissue library formed after the double-warp four-weft jacquard structure in the middle structural model ①;

[0093] Figure 22 For use Figure 3 The tissue corresponding to serial number 13 in the spectral chromogenic tissue library I and the tissue in the spectral chromogenic tissue library II and Figures 4-8 in accordance with Figure 9 Process laying Figure 1 The partial double-weft gradient color combination tissue library formed after the double-warp four-weft jacquard structure in the middle structural model ①;

[0094] Figure 23 For use Figure 3 The tissue corresponding to serial number 14 in the spectral chromogenic tissue library I and the tissue in the spectral chromogenic tissue library II and Figures 4-8 in accordance with Figure 9 Process laying Figure 1 The partial double-weft gradient color combination tissue library formed after the double-warp four-weft jacquard structure in the middle structural model ①;

[0095] Figure 24 For the purposes of this application Figures 10-23 The image shows the actual effect of the fabric formed by the weaving of the double-weft gradient color combination structure model ⑦. Detailed Implementation

[0096] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the technical solutions in the embodiments of this application will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit the technical solutions of this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0097] It should be noted that the terms "upper," "lower," "left," and "right" indicate the orientation or position based on the orientation or position shown in the attached drawings, and are only for ease of description and should not be construed as limiting the present technical solution.

[0098] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or specifying the number of technical features. "More" means two or more, unless otherwise explicitly defined.

[0099] This application uses a basic weave of 16 weft threads and 5-fly satin weave in both basic weave I and basic weave II as an example to illustrate the implementation method of the invention in detail.

[0100] By arranging and combining the outer and inner warp, and the outer and inner latitude, a total of 12 structural models can be obtained, such as... Figure 1 As shown, meridians J1 and J2 are arranged from left to right in a 1:1 ratio, and latitudes W1, W2, W3, and W4 are arranged from top to bottom in a 1:1:1:1 ratio. Figure 1 The black and dark gray sections (two 16×16 squares) represent the interlacing positions of the front warp and the two sets of front weft, respectively, while the medium gray and light gray sections (two 16×16 squares) represent the interlacing positions of the inner warp and the two sets of inner weft, respectively.

[0101] Taking structural model ① as an example, when warp A J1 is used as the surface warp and weft A W1 and weft B W2 are used as the surface wefts, warp A J1 and weft A W1 interweave according to the pattern of surface color development structure I, warp A J1 and weft B W2 interweave according to the pattern of surface color development structure II, and warp B J2 interweaves with weft C W3 and weft D W4 to form inner backing structure I and inner backing structure II, respectively. Figure 1 Structural model ②, structural model ③, structural model ④, structural model ⑤, structural model ⑥, structural model ⑦, structural model ⑧, structural model ⑨, structural model ⑩, structural model and structural model The organizational configuration rules are the same as those in structural model ①.

[0102] Since the double-warp four-weft jacquard structure's double-weft gradient color-developing structure model mainly develops color on the fabric surface through the variation of two sets of weft threads, to avoid the weft float length being truncated and affecting the color-developing effect, a reinforcement method of increasing warp weft points in the weft direction is used. Using a 16-end, 5-fly weft satin weave as the basic structure, and setting the upper left corner as the starting point (1,1), basic structure I with a starting point of (1,1) and basic structure II with a starting point of (14,1) are designed. Based on basic structure I, a full-color-developing point structure for basic structure II is set. The method is to reverse the weft points of basic structure I, using the reversed weft point as the starting end, and reinforcing one weft point upwards along the warp direction. Based on basic structure II, a full-color-developing point structure for basic structure I is set. The method is to reverse the weft points of basic structure II, using the reversed weft point as the starting end, and reinforcing one weft point downwards along the warp direction. See... Figure 2 .

[0103] Based on basic tissue I, without disrupting the full chromogenic technique points, this example uses an increase rate of M = N = 16 tissue points each time. The latitudinal reinforcement initially moves to the right, avoiding full chromogenic technique points upon encountering them, then returning to the starting point and reinforcing to the left, forming a surface chromogenic tissue library I with N-2 = 14 tissues. Based on basic tissue II, without disrupting the full chromogenic technique points, this example uses an increase rate of M = N = 16 tissue points each time. The latitudinal reinforcement initially moves to the right, avoiding full chromogenic technique points upon encountering them, then returning to the starting point and reinforcing to the left, forming a surface chromogenic tissue library II with N-2 = 14 tissues. In surface chromogenic tissue libraries I and II, the tissue numbers are from 1 to 14, from left to right and top to bottom, as shown in [reference needed]. Figure 3 .

[0104] In this case, two sets of weft threads, W3 and W4, are arranged in a 1:1 ratio from top to bottom according to the double weft weave design method. They interweave with warp J2 to form inner backing weave I and inner backing weave II, respectively, with inner backing weave I covering inner backing weave II. Based on the characteristics of the surface color-developing weave and the principle of interweaving balance, the weave repeat numbers of the inner backing weave and the surface color-developing weave are the same or integer multiples of each other. Sixteen weft-direction 5-fly satin weaves with a starting point of (1,1) in the surface color-developing weave library I are selected as inner backing weave I, and sixteen weft-direction 5-fly warp satin weaves with a starting point of (11,1) are selected as inner backing weave II. Figure 4 , Figure 5 As shown.

[0105] Because the surface warp and weft interweave and develop color on the fabric surface, and the basic structure is a 16-end, 5-fly satin weave, the surface color-developing structure library I and surface color-developing structure library II, formed by the weft-strengthened warp weft points, develop color through the interweaving and mixing of warp and weft threads with the continuous weft floats and warp weft points. Therefore, the inner warp-outer weft joining method is chosen to join the surface and inner layers of the fabric. The joining point is a warp weft point, and the weft points of the surface warp adjacent to the left and right or at least one side of the joining point must be warp weft points to ensure that the joining weft points are always covered by the surface warp. In the joining structure design process, in order to achieve a uniform gradient transition effect on the surface of the jacquard fabric with a double-warp, four-weft jacquard structure, the basic structure I of a 16-end, 5-fly satin weave is selected as the joining structure. The warp weft points of the resulting joining structure are always covered by the warp weft points of the shadow weft structure in the surface color-developing structure library, satisfying the requirements of the double-layer structure design. Based on the characteristics of surface color-developing structure I, it can be determined that the joining structure has unique rationality, see Figure 7 .

[0106] Designed according to the double - weft gradient color - showing structure model of the double - warp and four - weft jacquard structure, its combined weave is formed according to the design method of the double - layer structure. First, in the combined structure model, it is set that warp J1 and warp J2 are arranged 1:1 from left to right, and weft W1, weft W2, weft W3 and weft W4 are arranged 1:1:1:1 from top to bottom; Second, at the positions where the surface warp and the surface weft are interwoven, a surface color - showing weave is configured, at the positions where the inner warp and the inner weft are interwoven, an inner - layer backing weave is configured, all the warps at the positions where the surface warp and the inner weft are interwoven are lifted, that is, warp - tissue points are configured, and at the positions where the inner warp and the surface weft are interwoven, a connecting weave and weft - tissue points are configured.

[0107] According to the characteristics of the double - weft gradient color - showing structure model of 12 double - warp and four - weft jacquard structures, the surface color - showing weave, the inner - layer backing weave, the connecting weave, the weft - tissue points and the warp - tissue points configured at the corresponding positions are combined, that is, a double - weft gradient color - showing combined - weave library of 12 double - warp and four - weft jacquard structures is established.

[0108] After setting Figure 1 structure model ① ( Figure 9 (a) in it), the design process of the double - weft gradient color - showing combined weave is described: draw the surface color - showing weave I at the intersection position of warp J1 and weft W1, draw the surface color - showing weave II at the intersection position of warp J1 and weft W2, draw the inner - layer backing weave I at the intersection position of warp J2 and weft W3, and draw the inner - layer backing weave II at the intersection position of warp J2 and weft W4 ( Figure 9 (b) in it) → configure warp - tissue points at the intersection positions of warp J1 and wefts W3 and W4 ( Figure 9 (c) in it) → draw the connecting weave at the intersection position of warp J2 and weft W1 and configure weft - tissue points at the intersection position of warp J2 and weft W2 ( Figure 9 (d) in it) → combine the interweaving rules of warp J1 with wefts W1, W2, W3 and W4 and warp J2 with wefts W1, W2, W3 and W4 from top to bottom according to the 1:1:1:1 arrangement ratio, and combine the interweaving rules of warp J2 with wefts W1, W2, W3 and W4 from top to bottom according to the 1:1:1:1 arrangement ratio ( Figure 9 (e) in it) → expand the interweaving rules of the aforementioned warp J1 with wefts W1, W2, W3 and W4 and warp J2 with wefts W1, W2, W3 and W4 from left to right according to the 1:1 arrangement ratio to form a combined weave ( Figure 9 (f) in it).

[0109] Based on the above implementation steps, the combined weaves of the double - weft gradient color - showing of the double - warp and four - weft jacquard structure are summarized to establish a complete combined - weave library. Taking Figure 1 structure model ① as an example, taking Figure 3 (a) shows 14 16 - pick weft - faced satin surface color - showing weaves I based on the starting point (1,1), taking Figure 3(b) shows 14 color-developing structures II of 16-end 5-flying-weft satin surface layer based on the starting point (14,1); the basic structure I of 16-end 5-flying-weft satin surface layer with the starting point (1,1) is used as the inner backing structure I. Figure 5 The inner backing structure I shown is a 16-row, 5-flying-warp satin weave with the starting point shifted upwards by 2 rows after the structure point is reversed, serving as the inner backing structure II; the outer warp does not interweave with the inner weft, and is used as... Figure 6 The indicated warp point; the inner warp intersects with the outer latitude W1, with... Figure 7 The basic weave structure I shown is a 16-welt weft-flying satin weave, used as a joining structure; the inner warp and outer weft W2 do not interweave, forming... Figure 8 The shown weft weft weft points form a double-weft gradient color combination weft library under a double-warp four-weft jacquard structure, see [link / reference]. Figures 10 to 23 Except for the surface color-developing structure, the inner backing structure, bonding structure, etc. are all fixed. Therefore, the combined structure is numbered according to "ZH" "basic structure I serial number" - "basic structure II serial number". For example, "ZH1-1" indicates that the double-warp four-weft jacquard structure is formed by the combination of structure No. 1 in surface color-developing structure library I and structure No. 1 in surface color-developing structure library II (for distinction, the warp weft points W1, W2, W3, and W4 are represented by black, dark gray, medium gray, and light gray, while the weft weft points are represented by white).

[0110] In computer bitmap mode, digital patterns are designed. The subject matter of the digital pattern is arbitrary, and there are 12 colors. A series of gradient colors are designed based on each color. The resulting 12 series of gradient colors can be interspersed in the digital pattern but cannot overlap. In this example, the maximum number of colors is 12×(N-2). 2 = 12 × (16 - 2) 2 =2352.

[0111] The 12 series of gradient colors in the digital pattern are respectively matched with 12 sets of double-warp four-weft jacquard structure double-weft gradient color surface color combination tissue libraries. Each gradient color is replaced with the surface color tissue formed by the interweaving of the outer warp and outer weft in the corresponding tissue library using a one-to-one correspondence method. At the same time, the inner backing tissue formed by the interweaving of the inner warp and inner weft, the warp weft points formed by the non-interweaving of the outer warp and inner weft, the junction weft points formed by the interweaving of the inner warp and outer weft, and the weft weft points formed by the non-interweaving are combined according to the 12 types of double-warp four-weft jacquard structure models to form a double-warp four-weft jacquard structure double-weft gradient color jacquard fabric combination structure diagram.

[0112] Add warp and weft selection information to the double-weft gradient color-changing combination structure of a double-warp, four-weft jacquard fabric, set the warp and weft densities, select two sets of warp threads (black and white) and four sets of colored weft threads. The combination structure diagram of this jacquard fabric can be directly used to produce double-warp, four-weft jacquard jacquard fabrics with double-weft gradient color-changing structures. Based on... Figure 1 The fabric effect achieved after configuring the structure models ① and ⑦ is shown in the diagram. Figure 24 Among them, the square part of the fabric surface is based on Figure 1 The structural model ① presents a color gradient effect produced by two sets of weft threads, namely weft A and weft B, respectively configured in red and yellow, and a set of warp threads, namely warp A, configured in black. The outer frame of the squares on the fabric surface is based on... Figure 1 The middle structure module ⑦ presents a type of pure color effect produced by two sets of weft lines, namely weft line A and weft line B, respectively configured with red and yellow, and a set of warp lines, namely warp line B, configured with white.

[0113] The above content is a specific implementation example of the invention and is only used to explain and illustrate the invention, not to limit it. Any modifications, substitutions, and deductions made to the invention within the spirit and scope of the claims, or the use of the invention in a localized area of ​​the fabric, are all within the scope of protection of the invention.

Claims

1. A method for weaving a double-weft gradient color-developing fabric using a double-warp, four-weft jacquard weave, characterized in that, The steps are as follows: Step 1, Construct the structural model: Using warp yarn combinations consisting of warp A (J1) and warp B (J2), and weft yarn combinations consisting of weft A (W1), weft B (W2), weft C (W3), and weft D (W4) as the implementation objects, any two sets of weft yarns are interwoven with one set of warp yarns on the fabric surface to develop color, while the other two sets of weft yarns are interwoven with another set of warp yarns on the back of the fabric as a backing, forming several double-warp four-weft jacquard structure double-weft gradient color development structure models. Step 2, Surface color combination design: First, select twill or satin weaves on the weft or warp side as basic weave I and basic weave II, with the same weave repeat number N and the same number of stitches S, but different starting point positions. N is an integer, and 5 ≤ N ≤ 48. S is an integer, and the number of stitches S when the weave repeat number is N is Q. NSN The number of possible organizations Q of basic organization I BI =N×Q NSN The number of optional organizations Q in Basic Organization II BII =N-2; Let the rate of increase of tissue points be M, 1≤M≤N, where M is an integer. When M=N, the number of tissues in the surface chromogenic tissue library I and II is minimized, both being N-2, and the corresponding number of surface combined tissues is minimized, being (N-2). 2 When M=1, the surface chromogenic tissue libraries I and II have the largest number of tissues, which is (N-2) + (N-3) × (N-1) tissues, and the corresponding surface composite tissues have the largest number of tissues, which is [(N-2) + (N-3) × (N-1)]. 2 indivual, The second step is to set the corresponding full-color technique point structure based on basic structure I and basic structure II. The method is to reverse the structure point of basic structure I, and use the reversed structure point as the starting point to strengthen one structure point upward / downward along the warp direction to obtain the full-color technique point structure of basic structure II. Reverse the tissue points of basic tissue II, and using the reversed tissue points as the starting point, reinforce one tissue point downwards / upwards along the warp direction to obtain the full-color technique tissue of basic tissue I. The third step involves designing a basic tissue I (surface color development tissue library I) by adding / reducing tissue points, using basic tissue I as the initial tissue and its full color development point tissue as the final tissue, while avoiding full color development points. Simultaneously, a basic tissue II (surface color development tissue library II) is designed by adding / reducing tissue points, using basic tissue II as the initial tissue and its full color development point tissue as the final tissue, while avoiding full color development points. One tissue is then selected from each of surface color development tissue libraries I and II and combined vertically to form a surface color development combination tissue with a double-warp, four-weft jacquard structure and double-weft gradient color development. Step 3, Inner backing tissue design: Based on the requirements for selecting the surface chromogenic structure and the inner backing structure in the double-layer structure design, the tissue cycle number of the inner backing structure is the same as or an integer multiple of the tissue cycle number of the surface chromogenic structure, resulting in inner backing structure I and inner backing structure II. The selectable number of inner backing structures is... Arrange n weaves with a repeat number of N, its divisors, and multiples of N from left to right, in order from weft to warp. The repeat number of the i-th weave is N, its divisors, or multiples of N. N i The number S of an organization whose i-th organization has a cycle number of N, a divisor of N, or an integer multiple of N, is a non-linear number. i Quantity is , , 1≤i≤n, Step 4, Design of the relationship between the outer and inner layers of the fabric: When the outer and inner layers of a fabric are not joined, when viewed from the right side, the outer warp is always above the inner weft, and the inner warp is always below the outer weft. When joining the outer and inner layers of a fabric, if, when viewed from the right side of the fabric, the number of repeats in the joining structure is the same as or an integer multiple of the number of repeats in the outer structure, the self-joining method is chosen to secure the outer and inner layers of the fabric. Step 5, Design the organizational process: The first step is to determine the ratio of longitude J1 (A) to longitude J2 (B) and arrange them horizontally, and the ratio of latitude W1 (A), latitude W2 (B), latitude W3 (C), and latitude W4 (D) and arrange them vertically. The second step involves configuring surface color-developing fabric I and surface color-developing fabric II at the intersections of the surface warp and surface weft, following the order of the weft lines. Similarly, configuring inner backing fabric I and inner backing fabric II at the intersections of the inner warp and inner weft. All warp lines at the intersections of the surface warp and inner weft are raised (i.e., warp weft points are configured), while all warp lines at the intersections of the inner warp and surface weft are lowered (i.e., weft weft points are configured). The third step is to match the relationship between the outer and inner layers of the fabric. The fourth step involves designing the combination of various structural models based on the characteristics of the double-warp, four-weft jacquard structure with its double-weft gradient color development. Step Six, Digital Pattern Design: In computer bitmap mode, design a digital pattern, select colors, and design a series of gradient colors based on each color. The number of levels in any series of gradient colors must be less than or equal to the maximum number of light-reflecting elements in either surface color library I or surface color library II, which is (N-2) + (N-3) × (N-1). The gradient effects in the digital pattern do not overlap, and the maximum number of colors is 12 × [(N-2) + (N-3) × (N-1)]. 2 indivual, Step 7, Design of the composite structure diagram: The surface weave structures I and II, formed by the interlacing of the surface warp and weft, the lining weave structures I and II, formed by the interlacing of the inner warp and weft, and the warp floats, weft floats, and / or joining structures resulting from the relationship between the surface and inner layers of the fabric are combined according to the jacquard structure model. Each series of gradient colors corresponds to a different light-reflecting structure in the surface color-developing structure libraries I and II, and these are laid out one-to-one to form a double-weft gradient color-developing combination structure diagram under a double-warp, four-weft jacquard structure. Step 8, Weaving: Add warp and weft selection information to the double-warp four-weft jacquard structure double-weft gradient color combination diagram, set the warp and weft density, select two sets of warp threads and four sets of weft threads, and use the combination structure diagram obtained in step seven for weaving to obtain a double-warp four-weft jacquard fabric with double-weft gradient color characteristics.

2. The method for weaving a double-weft gradient color-developing fabric according to claim 1, characterized in that: The total number of connection location organization configuration methods is Q S Among them, the number of configuration methods Q when the surface layer and the inner layer are not connected. NS =1, when the outer layer and inner layer are joined, the number of weave repeats in the joining structure is N, a non-divisor of N, or an integer multiple of N. The number of possible combinations of the number of weft stitch points in the outer warp-inner weft joining structure is Q. FSP The number of possible combinations of warp and weft connection points in the weft-inner band is Q. BSP ,satisfy: 。 3. The method for weaving a double-weft gradient color-developing fabric according to claim 1, characterized in that: In step four, the self-joining method adopts the inner warp and outer weft joining method, and the joining point is designed as the warp joining point. The joining point of the inner warp is adjacent to the outer warp on the left and right, or at least one side of the outer warp, which is the warp joining point. This ensures that the joining point of the inner warp and outer weft is always covered by the outer warp. Alternatively, the outer warp and inner weft joining method is adopted, and the joining point is designed as the weft joining point. The joining point of the inner weft is adjacent to the outer weft on the upper and lower, or at least one side of the outer weft, which is the weft joining point. This ensures that the joining point of the outer warp and inner weft is always covered by the outer weft. Alternatively, the combined joining method is adopted, and the inner warp and outer weft and the outer warp and inner weft are joined at the same time.

4. A method for weaving a double-weft gradient color-developing fabric according to any one of claims 1 to 3, characterized in that: In step one, meridian J1 and meridian J2 are arranged horizontally in a 1:1 ratio; latitudes W1, W2, W3 and W4 are arranged vertically in a 1:1:1:1 ratio.

5. The method for weaving a double-weft gradient color-developing fabric according to claim 4, characterized in that, In step one, there are twelve dual-dimensional gradient color rendering structure models: 1) Warp A J1 is the color-developing warp, which interweaves with the color-developing wefts A W1 and B W2 on the fabric surface to develop color. At this time, the backing warp B J2 interweaves with the backing wefts C W3 and D W4 on the back of the fabric to form a backing. 2) Warp A J1 is the color-developing warp, which interweaves with the color-developing wefts A W1 and C W3 on the fabric surface to develop color. At this time, the backing warp B J2 interweaves with the backing wefts B W2 and D W4 on the back of the fabric to form a backing. 3) Warp A J1 is the color-developing warp, which interweaves with the color-developing wefts A W1 and D W4 on the fabric surface to develop color. At this time, the backing warp B J2 interweaves with the backing wefts B W2 and C W3 on the back of the fabric to form a backing. 4) Warp A J1 is the color-developing warp, which interweaves with the color-developing wefts B W2 and C W3 on the fabric surface to develop color. At this time, the backing warp B J2 interweaves with the backing wefts A W1 and D W4 on the back of the fabric to form a backing. 5) Warp A J1 is the color-developing warp, which interweaves with the color-developing wefts B W2 and D W4 on the fabric surface to develop color. At this time, the backing warp B J2 interweaves with the backing wefts A W1 and C W3 on the back of the fabric to form a backing. 6) Warp A J1 is the color-developing warp, which interweaves with the color-developing wefts C W3 and D W4 on the fabric surface to develop color. At this time, the backing warp B J2 interweaves with the backing wefts A W1 and B W2 on the back of the fabric to form a backing. 7) Warp J2 is the color-developing warp, which interweaves with the color-developing wefts W1 and W2 on the fabric surface to develop color. At this time, the backing warp J1 interweaves with the backing wefts W3 and W4 on the back of the fabric to form a backing. 8) Warp J2 is the color-developing warp, which interweaves with the color-developing wefts W1 and W3 on the fabric surface to develop color. At this time, the backing warp J1 interweaves with the backing wefts W2 and W4 on the back of the fabric to form a backing. 9) Warp J2 is the color-developing warp, which interweaves with the color-developing wefts W1 and W4 on the fabric surface to develop color. At this time, the backing warp J1 interweaves with the backing wefts W2 and W3 on the back of the fabric to form a backing. 10) Warp J2 is the color-developing warp, which interweaves with the color-developing wefts W2 and W3 on the fabric surface to develop color. At this time, the backing warp J1 and the backing wefts W1 and W4 interweave on the back of the fabric to form a backing. 11) Warp J2 is the color-developing warp, which interweaves with the color-developing wefts W2 and W4 on the fabric surface to develop color. At this time, the backing warp J1 and the backing wefts W1 and W3 interweave on the back of the fabric to form a backing. 12) Warp J2 is the color-developing warp, which interweaves with the color-developing wefts W3 and W4 on the fabric surface to develop color. At this time, the backing warp J1 and the backing wefts W1 and W2 interweave on the back of the fabric to form a backing.

6. The method for weaving a double-weft gradient color-developing fabric according to claim 4, characterized in that, In step two, the vertical arrangement ratio is 1:

1. There are twelve groups of surface chromogenic tissue libraries, namely: surface chromogenic tissue library with warp A J1 and latitude A W1, latitude B W2; surface chromogenic tissue library with warp A J1 and latitude A W1, latitude C W3; surface chromogenic tissue library with warp A J1 and latitude A W1, latitude D W4; surface chromogenic tissue library with warp A J1 and latitude B W2, latitude C W3; surface chromogenic tissue library with warp A J1 and latitude B W2, latitude D W4; and surface chromogenic tissue library with warp A J1 and latitude B W2, latitude D W4. Surface chromogenic tissue libraries for latitudes W3 and W4, latitudes J2 and W1, W2, W3, W4, W2, W2, W3, W4, W2, W2, W2, W2, W3, W2, W2, W2, W2, W2, W3, W2, W2, W3, W2, W2, W3, W2, W4, W3, W2, W4, W2, W3, W2, W4, W3, W4.

7. The method for weaving a double-weft gradient color-developing fabric of a double-warp, four-weft jacquard fabric according to claim 6, characterized in that, In the design of the inner backing structure, the two sets of inner weft threads are arranged in a 1:1 ratio, interlacing with the inner warp threads in a longitudinal arrangement, and the configuration position satisfies the following: The colorimetric warp is warp A (J1), the colorimetric weft is weft A (W1) and weft B (W2), and warp B (J2) and weft C (W3) interweave according to the pattern of inner backing structure I or inner backing structure II. Correspondingly, warp B (J2) and weft D (W4) interweave according to the pattern of inner backing structure II or inner backing structure I; or, the colorimetric warp is warp A (J1), the colorimetric weft is weft A (W1) and weft C (W3), and warp B (J2) and weft B (W2) interweave according to the pattern of inner backing structure I or inner backing structure II. Correspondingly, warp B (J2) and weft D (W4) can only interweave according to the pattern of inner backing structure II or inner backing structure I; or, when the colorimetric warp is warp A (J1), and the colorimetric weft is weft A (W1) and weft D (W4), warp B... When warp J2 and weft W2 interweave according to the pattern of inner backing structure I or II, correspondingly, warp J2 and weft W3 can only interweave according to the pattern of inner backing structure II or I. Alternatively, when the colorimetric warp is warp A J1 and the colorimetric weft is weft B W2 and weft C W3, warp J2 and weft A W1 interweave according to the pattern of inner backing structure I or II. Correspondingly, warp J2 and weft D W4 can only interweave according to the pattern of inner backing structure II or I. Alternatively, when the colorimetric warp is warp A J1 and the colorimetric weft is weft B W2 and weft D W4, warp J2 and weft A W1 interweave according to the pattern of inner backing structure I or I. The pattern of interlacing in II corresponds to the interlacing of warp J2 and weft W3 according to the pattern of inner backing structure II or inner backing structure I; or, when the colorimetric warp is warp J1 and the colorimetric weft is weft W3 and weft W4, warp J2 and weft W1 interlaced according to the pattern of inner backing structure I or inner backing structure II, and correspondingly, warp J2 and weft W2 interlaced according to the pattern of inner backing structure II or inner backing structure I; or, when the colorimetric warp is warp J2 and the colorimetric weft is weft W1 and weft W2, warp J1 and weft W3 interlaced according to the pattern of inner backing structure I or inner backing structure II, and correspondingly, warp J1 and weft W4 interlaced according to the pattern of inner backing structure I or inner backing structure II. The weave pattern follows the pattern of either the inner backing structure II or the inner backing structure I; or, when the color developing warp is warp B J2 and the color developing weft is weft A W1 and weft C W3, warp A J1 and weft B W2 weave according to the pattern of either the inner backing structure I or the inner backing structure II. Correspondingly, warp A J1 and weft D W4 can only weave according to the pattern of either the inner backing structure II or the inner backing structure I; or, when the color developing warp is warp B J2 and the color developing weft is weft A W1 and weft D W4, warp A J1 and weft B W2 weave according to the pattern of either the inner backing structure I or the inner backing structure II. Correspondingly, warp A J1 and weft C W3 can only weave according to the pattern of either the inner backing structure II or the inner backing structure I.Alternatively, when the colorimetric warp is warp B J2 and the colorimetric weft is weft B W2 and weft C W3, warp A J1 and weft A W1 interweave according to the pattern of inner backing structure I or inner backing structure II. Correspondingly, warp A J1 and weft D W4 can only interweave according to the pattern of inner backing structure II or inner backing structure I. Alternatively, when the colorimetric warp is warp B J2 and the colorimetric weft is weft B W2 and weft D W4, warp A J1 and weft A W1 interweave according to the pattern of inner backing structure I or inner backing structure II. The regular interlacing pattern of backing structure II corresponds to the interlacing pattern of warp A (J1) and weft C (W3) only following the pattern of either backing structure II or backing structure I. Alternatively, when the colorimetric warp is warp B (J2) and the colorimetric wefts are weft C (W3) and weft D (W4), warp A (J1) and weft A (W1) interlaced according to the pattern of either backing structure I or backing structure II. Correspondingly, warp A (J1) and weft B (W2) only interlaced according to the pattern of either backing structure II or backing structure I.

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