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

Abstract

The application provides a three-weft gradual color development weaving method of double-warp four-weft jacquard fabric, and belongs to the technical field of jacquard fabric weaving. A warp yarn combination composed of warp J1 and warp J2, and a weft yarn combination composed of weft W1, weft W2, weft W3 and weft W4 are taken as the implementation object, namely, when two groups of warp yarns are interwoven with four groups of weft yarns, any three groups of weft yarns gradually develop color on the surface layer of the fabric, and the remaining one group of weft yarns is not developed color on the backing of the inner layer of the fabric. The establishment of a three-weft gradual color development structure model of a double-warp four-weft jacquard structure model, surface layer structure design, inner layer structure design, fabric surface layer and inner layer relationship design, combined structure flow design, digital pattern design, combined structure diagram design are carried out, and finally, a jacquard fabric with three-weft gradual color development under the double-warp four-weft jacquard structure model can be obtained according to the weaving of the combined structure diagram. The double-warp four-weft fabric obtained by the above method can realize the effect of three-weft gradual color development.

Description

TECHNICAL FIELD

[0001] The application relates to a three-warp gradual color display weaving method of a double-warp four-weft jacquard fabric, and belongs to the technical field of jacquard fabric weaving. BACKGROUND

[0002] A layered combination design mode of a digital jacquard fabric breaks through the limitation of a single plane design mode on fabric structure forming and color expression by combining a plurality of single-layer structure diagrams to form a combined structure diagram, and can generate a fabric structure which is stable in structure and meets interweaving balance. A jacquard structure with bidirectional multi-group yarns is based on double-layer structure design, and a jacquard structure with unidirectional multi-group yarns is based on single-layer structure forming. The structure change state and quantity of the former far exceed those of the latter. Compared with a single-warp four-weft structure model, the increase of one group of warp yarns is beneficial to realizing bidirectional regulation and control of the lightness of the structure model. Compared with a double-warp three-weft structure model, the increase of one group of weft yarns is beneficial to expanding the color gamut space of the structure model. In addition, currently, there is no relevant literature record about a three-weft gradual color display weaving method of a double-warp four-weft jacquard fabric structure.

[0003] Based on this, the application is made. SUMMARY

[0004] Therefore, the application provides a three-weft gradual color display weaving method of a double-warp four-weft jacquard fabric, which realizes the combined gradual color display of any three groups of weft yarns on the surface of the fabric in cooperation with a layered combination design mode, and gives the fabric more comprehensive color expression.

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

[0006] A three-weft gradual color display weaving method of a double-warp four-weft jacquard fabric, the steps are as follows:

[0007] Step one, constructing a structure model:

[0008] Two groups of silk yarns are arranged in the warp direction of the fabric, denoted as warp J1 and warp J2, and arranged in a 1:1 arrangement ratio from left to right. Four groups of silk yarns are arranged in the weft direction of the fabric, denoted as weft W1, weft W2, weft W3 and weft W4, and arranged in an arrangement ratio of 1:1:1:1 from top to bottom. Any three groups of weft yarns and one group of warp yarns are interwoven to display color on the surface of the fabric, and the remaining one group of weft yarns and the other group of warp yarns are interwoven to back up on the back of the fabric, thereby forming a plurality of three-weft gradual color display structure models of double-warp four-weft jacquard structures.

[0009] Step two, surface layer combination organization design:

[0010] The twill or satin in the tricot weave is selected as the base weave I, the base weave II and the base weave III, which are all weft or warp weaves, and their weave cycle numbers R are consistent (5≤R≤48, R is an integer), the number of the picks S is consistent (S is an integer), but the starting point positions are different, and the base weaves are arranged in the relative order of the weft arrangement to design the surface weave I, the surface weave II and the surface weave III, and the number of the optional base weaves Q B The number of the picks S when the weave cycle number is R and the number of the base weaves Q NSR Determination, Q B =R×Q NSR ×[R 2 -3(R-1)].

[0011] According to the base weave I, the base weave II and the base weave III, the corresponding full-color technology point weaves are set, and the method is that the base weave I, the base weave II and the base weave III are combined in the arrangement ratio of 1:1:1 from top to bottom to form a combined weave, when the base weaves are weft / warp weaves, the warp / weft points of the combined weave and each of the weft / warp points at the positions of the adjacent weft and the rear weft of the weft line and the position of the interweaving of the warp line are reserved, the remaining weft / warp points in the combined weave are all reversed into warp / weft points, the full-color technology point combined weave is obtained, and then the full-color technology point weaves of the base weave I, the base weave II and the base weave III are respectively formed by decomposing the full-color technology point combined weave in the arrangement ratio of 1:1:1 from top to bottom.

[0012] A group of base weave I shadow weave libraries, i.e. the surface weave library I, is designed by increasing / decreasing the weave points under the condition of avoiding the full-color technology points, taking the base weave I as the initial weave and the full-color technology point weave of the base weave I as the terminal weave; meanwhile, a group of base weave II shadow weave libraries, i.e. the surface weave library II, is designed by increasing / decreasing the weave points under the condition of avoiding the full-color technology points, taking the base weave II as the initial weave and the full-color technology point weave of the base weave II as the terminal weave; a group of base weave III shadow weave libraries, i.e. the surface weave library III, is designed by increasing / decreasing the weave points under the condition of avoiding the full-color technology points, taking the base weave III as the initial weave and the full-color technology point weave of the base weave III as the terminal weave; one weave is taken from each of the surface weave library I, the surface weave library II and the surface weave library III, and the combined weave formed by combining the weaves in the arrangement ratio of 1:1:1 from top to bottom is the surface combined weave of three weft gradual developments under the double warp and four weft jacquard structure.

[0013] The increase rate of the warp weave points is K, 1≤K≤R, K is an integer. When K=R, the number of the weaves in the surface weave library I, the surface weave library II and the surface weave library III is the least, which is R-2, and the number of the surface combined weaves formed is the least, which is (R-2) 3When K = 1, the number of tissues in the surface tissue library I, the surface tissue library II and the surface tissue library III is the largest, which is (R-2) + (R-3) x (R-1), and the number of the surface combined tissues formed is the largest, which is [(R-2) + (R-3) x (R-1)] 3 .

[0014] Step three, inner layer tissue design:

[0015] According to the requirements of the selection of the surface tissue and the inner layer tissue in the double-layer structure design, the number of the tissue cycles of the inner layer tissue is the same as or is an integer multiple of the number of the tissue cycles of the surface tissue.

[0016] When the three wefts gradually change, in addition to the three groups of surface wefts, the remaining one group of inner wefts is interwoven with the inner warp to form the inner layer tissue, and the number of the optional wefts is Q b , the number of the tissues with the number of the tissue cycles R, the divisors (not equal to 1) of R and the integer multiples of R is n, and the number of the tissue cycles of the tissue with the number of the tissue cycles R or its divisors (not equal to 1) or its integer multiples is R i , the number of the tissue with the number of the tissue cycles R or its divisors or its integer multiples is S i The number of the tissues is

[0017] Step four, design of the relationship between the surface layer and the inner layer of the fabric

[0018] The surface layer and the inner layer of the fabric have two kinds of relationships, i.e. not jointing and jointing.

[0019] When the surface layer and the inner layer are not jointed, from the front of the fabric, the surface warp is always located above the inner weft, and the inner warp is always located below the surface weft.

[0020] When the surface layer and the inner layer are jointed, from the front of the fabric, the number of the jointing tissue cycles is the same as or is an integer multiple of the number of the surface tissue cycles, and the surface combined tissue is formed by the basic tissue I, the basic tissue II and the basic tissue III which are strengthened by combination, so as to cover the jointing tissue points and select the self jointing method to fix the surface layer and the inner layer of the fabric.

[0021] At this time, within one stitch cycle, the distribution of the stitching stitch points should be uniform, and the distribution direction of the stitching stitch points should be consistent with the distribution direction of the stitch points of the surface layer tissue I or the surface layer tissue II or the surface layer tissue III or the surface layer color development combined tissue. When using the back warp surface weft stitching method, the stitching stitch points are designed as warp stitch points, and thus the stitch points of the left and right adjacent surface warp or at least one side surface warp of the back warp where the stitching stitch points are located must be warp stitch points, so as to ensure that the stitching stitch points of the back warp and the surface weft can be covered by the surface warp at all times. When using the surface warp back weft stitching method, the stitching stitch points are designed as weft stitch points, and thus the stitch points of the upper and lower adjacent surface weft or at least one side surface weft of the back weft where the stitching stitch points are located must be weft stitch points, so as to ensure that the stitching stitch points of the surface warp and the back weft can be covered by the surface weft at all times. When using the combined stitching method, that is, the back warp surface weft stitching method and the surface warp back weft stitching method are simultaneously required to be used.

[0022] The number of stitching position tissue configuration methods is Q S When the surface layer and the back layer are not stitched, Q NS = 1; when the surface layer and the back layer are stitched, when the number of stitch cycles of the stitching tissue is R or a divisor (not equal to 1) or an integral multiple of R, the number of combinations of the selected number of stitching weft stitch points of the surface warp back weft stitching tissue is Q FSP , the number of combinations of the selected number of stitching warp stitch points of the back warp surface weft stitching tissue is Q BSP , and the following conditions are met:

[0023]

[0024] Step five, combination tissue flow design

[0025] It is set that the back warp J1 and the surface warp J2 are arranged according to the arrangement ratio of 1:1 from left to right, and the surface weft W1, the back weft W2, the surface weft W3 and the back weft W4 are arranged according to the arrangement ratio of 1:1:1:1 from top to bottom.

[0026] The surface layer tissue I, the surface layer tissue II and the surface layer tissue III are arranged at the positions where the surface warp and the surface weft are interwoven according to the weft arrangement order, the back layer tissue is arranged at the positions where the back warp and the back weft are interwoven, and the warp is all lifted at the positions where the surface warp and the back weft are interwoven, that is, the warp stitch points are arranged, and the warp is all sunk at the positions where the back warp and the surface weft are interwoven, that is, the weft stitch points are arranged.

[0027] If the surface layer and the back layer are not stitched, the warp float is arranged at the positions where the surface warp and the back weft are interwoven, and the weft float is arranged at the positions where the back warp and the surface weft are interwoven.

[0028] If the surface layer is connected with the inner layer, when using the surface weft connection method, the inner warp and surface weft connection structure is arranged at the position where the inner warp and surface weft are interwoven; when using the surface warp and inner weft connection method, the surface warp and inner weft connection structure is arranged at the position where the surface warp and inner weft are interwoven; when using the joint connection method, the inner warp and surface weft connection structure is arranged at the position where the inner warp and surface weft are interwoven, and the surface warp and inner weft connection structure is arranged at the position where the surface warp and inner weft are interwoven.

[0029] According to the three-weft gradual color development structure model characteristics of the double-warp four-weft jacquard structure, the combination structure design of each structure model is sequentially completed, and the maximum number of combination structures is 8xQ B x[(R-2)+(R-3)x(R-1)] 3 xQ b xQ S .

[0030] Step six, digital pattern design:

[0031] The digital pattern is designed in the computer bitmap mode, the theme of the digital pattern is not limited, the color is selected, and a series of gradual colors are designed on the basis of each color, wherein the number of any series of gradual colors is less than or equal to the maximum value of the shadow structure number in the surface structure library I or the surface structure library II or the surface structure library III, that is, (R-2)+(R-3)x(R-1), and the effects of each series of gradual colors in the digital pattern do not overlap each other, and the maximum color development number is 8x[(R-2)+(R-3)x(R-1)] 3 .

[0032] Step seven, combination structure diagram design:

[0033] The surface structure I, the surface structure II and the surface structure III formed by interweaving the surface warp and the surface weft, the inner layer structure formed by interweaving the inner warp and the inner weft, the warp floating long formed by not interweaving the surface warp and the inner weft, the connection structure formed by interweaving the inner warp and the surface weft, and the weft floating long formed by not interweaving the inner warp and the surface weft are combined according to the jacquard structure model, wherein any series of gradual colors correspond to each shadow structure in the surface structure library I, the surface structure II or the surface structure library III, and after replacement using the method of one-to-one correspondence between color and structure, the three-weft gradual color development combination structure diagram under the double-warp four-weft jacquard structure is formed.

[0034] Step eight, weaving:

[0035] The double-warp four-weft jacquard structure three-weft gradual color development combination structure diagram is added with the information of warp pulling and weft selection, the warp and weft densities are set, two groups of warp and four groups of weft are selected, and the combination structure diagram obtained in step seven is used for weaving, so that the double-warp four-weft jacquard fabric with three-weft gradual color development characteristics can be obtained.

[0036] The above weaving method uses two groups of warp and four groups of weft to interweave, and any three groups of weft and one group of warp are interwoven on the surface of the fabric to realize the gradual color display effect, and the remaining one group of weft and another group of warp are interwoven in the inner layer of the fabric to realize the backing effect, and do not display color on the surface of the fabric, and follow the design requirements of the double-layer structure, so as to complete the three-weft gradual color display structure design of the double-warp four-weft jacquard fabric.

[0037] Further, as preferred:

[0038] In step one, the three-weft gradual color display structure model has eight:

[0039] 1) When the warp J1 is the color display surface warp, it is interwoven with the color display surface weft W1, W2 and W3 on the surface of the fabric to display color, at this time, the backing inner warp J2 is interwoven with the backing inner weft W4 on the back of the fabric to realize the backing effect;

[0040] 2) When the warp J1 is the color display surface warp, it is interwoven with the color display surface weft W1, W2 and W4 on the surface of the fabric to display color, at this time, the backing inner warp J2 is interwoven with the backing inner weft W3 on the back of the fabric to realize the backing effect;

[0041] 3) When the warp J1 is the color display surface warp, it is interwoven with the color display surface weft W1, W3 and W4 on the surface of the fabric to display color, at this time, the backing inner warp J2 is interwoven with the backing inner weft W2 on the back of the fabric to realize the backing effect;

[0042] 4) When the warp J1 is the color display surface warp, it is interwoven with the color display surface weft W2, W3 and W4 on the surface of the fabric to display color, at this time, the backing inner warp J2 is interwoven with the backing inner weft W1 on the back of the fabric to realize the backing effect;

[0043] 5) When the warp J2 is the color display surface warp, it is interwoven with the color display surface weft W1, W2 and W3 on the surface of the fabric to display color, at this time, the backing inner warp J1 is interwoven with the backing inner weft W4 on the back of the fabric to realize the backing effect;

[0044] 6) When the warp J2 is the color display surface warp, it is interwoven with the color display surface weft W1, W2 and W4 on the surface of the fabric to display color, at this time, the backing inner warp J1 is interwoven with the backing inner weft W3 on the back of the fabric to realize the backing effect;

[0045] 7) When the warp J2 is the color display surface warp, it is interwoven with the color display surface weft W1, W3 and W4 on the surface of the fabric to display color, at this time, the backing inner warp J1 is interwoven with the backing inner weft W2 on the back of the fabric to realize the backing effect;

[0046] 8) When the warp J2 is the color display surface warp, it is interwoven with the color display surface weft W2, W3 and W4 on the surface of the fabric to display color, at this time, the backing inner warp J1 is interwoven with the backing inner weft W1 on the back of the fabric to realize the backing effect.

[0047] In the process of surface layer structure design, according to the above eight double warp four weft jacquard structure three weft gradual color structure model, a total of eight groups of surface layer structure library can be established, respectively, the surface layer structure library of J1 and W1, W2, W3, the surface layer structure library of J1 and W1, W2, W4, the surface layer structure library of J1 and W1, W3, W4, the surface layer structure library of J1 and W2, W3, W4, the surface layer structure library of J2 and W1, W2, W3, the surface layer structure library of J2 and W1, W2, W4, the surface layer structure library of J2 and W1, W3, W4, the surface layer structure library of J2 and W2, W3, W4.

[0048] In the process of inner layer structure design, in any double warp four weft jacquard structure three weft gradual color structure model, only one group of inner weft, the configuration position of the inner layer structure is unique:

[0049] When the color developing warp is J1, and the color developing weft is W1, W2 and W3, J2 and W4 can be interwoven according to the inner layer structure rule.

[0050] When the color developing warp is J1, and the color developing weft is W1, W2 and W4, J2 and W3 can be interwoven according to the inner layer structure rule.

[0051] When the color developing warp is J1, and the color developing weft is W1, W3 and W4, J2 and W2 can be interwoven according to the inner layer structure rule.

[0052] When the color developing warp is J1, and the color developing weft is W2, W3 and W4, J2 and W1 can be interwoven according to the inner layer structure rule.

[0053] When the color developing warp is J2, and the color developing weft is W1, W2 and W3, J1 and W4 can be interwoven according to the inner layer structure rule.

[0054] When the color developing warp is J2, and the color developing weft is W1, W2 and W4, J1 and W3 can be interwoven according to the inner layer structure rule.

[0055] When the color developing warp is J2, and the color developing weft is W1, W3 and W4, J1 and W2 can be interwoven according to the inner layer structure rule.

[0056] When the color developing warp is J2, and the color developing weft is W2, W3 and W4, J1 and W1 can be interwoven according to the inner layer structure rule.

[0057] The working principle and benefits of the present application are as follows:

[0058] The present application combines the warp yarns composed of A through J1 and B through J2, and the weft yarns composed of A weft W1, B weft W2, C weft W3 and D weft W4 as the implementation object, that is, when the two groups of warp yarns are interwoven with the four groups of weft yarns, any three groups of weft yarns gradually show color on the surface layer of the fabric, and the remaining one group of weft yarns does not show color on the backing of the inner layer of the fabric. Based on the configuration principle of the double-layer structure, the establishment of the three-weft gradual color showing structure model of the double-warp four-weft jacquard structure model, the surface layer structure design, the inner layer structure design, the relationship design between the fabric surface layer and the inner layer, the combined structure flow design, the digital pattern design, the combined structure diagram design, and finally the weaving parameters are designed, and the three-weft gradual color showing jacquard fabric under the double-warp four-weft jacquard structure model can be woven according to the combined structure diagram.

[0059] By applying the above technical means, the three-weft gradual color showing jacquard fabric under the double-warp four-weft jacquard structure can be developed, and the two groups of warp yarns and the four groups of weft yarns in the fabric structure jointly participate in the gradual color showing, and eight series of gradual colors can be formed on the surface of the fabric. Under the constraint of the technical scheme of the present application, the eight series of gradual colors in the digital pattern design can be randomly inserted, and each series of colors can be replaced one by one with each structure in the surface layer structure library, so that the design and production of the three-weft gradual color showing jacquard fabric under the double-warp four-weft jacquard structure can be realized, and the requirements of mass production of the fabric can be met. BRIEF DESCRIPTION OF DRAWINGS

[0060] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creating any creative labor.

[0061] Figure 1 The structure model schematic diagram of the jacquard fabric in the embodiment;

[0062] Figure 2 The basic structure of the jacquard fabric in the embodiment and its full-color technical point structure,

[0063] (a) Basic structure I (left) and its full-color technical point structure (right), (b) basic structure II (left) and its full-color technical point structure (right), (c) basic structure III and its full-color technical point structure (right);

[0064] Figure 3 The surface layer structure library I (a), the surface layer structure library II (b) and the surface layer structure library III design (c) of the weft direction with the minimum number of levels (K=R) in the embodiment;

[0065] By applying the above technical means, the three-weft gradual color showing jacquard fabric under the double-warp four-weft jacquard structure can be developed, and the two groups of warp yarns and the four groups of weft yarns in the fabric structure jointly participate in the gradual color showing, and eight series of gradual colors can be formed on the surface of the fabric. Under the constraint of the technical scheme of the present application, the eight series of gradual colors in the digital pattern design can be randomly inserted, and each series of colors can be replaced one by one with each structure in the surface layer structure library, so that the design and production of the three-weft gradual color showing jacquard fabric under the double-warp four-weft jacquard structure can be realized, and the requirements of mass production of the fabric can be met.Figure 4 Schematic diagram of the structure of the inner layer in the embodiment;

[0066] Figure 5 Schematic diagram of the structure of the warp points in the embodiment located at the intersection of the warp and the weft of the inner layer;

[0067] Figure 6 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer;

[0068] Figure 7 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer;

[0069] Figure 8 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer; Figure 1 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer;

[0070] Figure 9 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer; Figure 3 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer; Figures 4-7 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer; Figure 8 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer; Figure 1 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer;

[0071] Figure 10 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer; Figure 3 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer; Figures 4-7 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer; Figure 8 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer; Figure 1 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer;

[0072] Figure 11 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer; Figure 3 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer; Figures 4-7 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer; Figure 8 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer; Figure 1 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer;

[0073] Figure 12 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer; Figures 9-11 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer; Figure 1 Schematic diagram of the structure of the weft points in the embodiment located at the intersection of the warp of the inner layer and the weft of the surface layer; DETAILED DESCRIPTION

[0074] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the technical solutions in the embodiments of the present application will be further described in detail below with reference to the accompanying drawings in the embodiments of the present application. It should be understood that the specific embodiments described herein are only used to explain the present application and cannot be used to limit the technical solutions of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0075] It should be noted that the terms "upper", "lower", "left", "right" and the like indicate the positions or locations based on the positions or locations shown in the drawings and are only for the convenience of description and cannot be understood as limiting the technical solutions.

[0076] In addition, the terms "first", "second" are only for the purpose of convenient description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "multiple" is two or more, unless otherwise specifically limited.

[0077] The embodiments of the present application take 16 weft 9 warp face satin as an example, and the implementation method of the present application is described in detail.

[0078] In the construction of the three-weft gradual color development structure model of the double-warp four-weft jacquard structure, according to different combinations of the surface warp, the inner warp, the surface weft and the inner weft, a total of 8 types of structure models can be obtained, as shown in Figure 1 The warp J1 and the warp J2 are arranged and configured in a 1:1 ratio from left to right, and the weft W1, the weft W2, the weft W3 and the weft W4 are arranged and configured in a 1:1:1:1 ratio from top to bottom. Figure 1 The middle black, dark gray and medium gray parts (3 16x16 squares) represent the interlacing positions of the surface warp and the three groups of surface weft, and the light gray part (1 16x16 square) represents the interlacing position of the inner warp and the inner weft.

[0079] Taking structure model ① as an example, when the warp J1 is used as the surface warp, the weft W1, the weft W2 and the weft W3 are used as the surface weft, the warp J1 and the weft W1 are interlaced according to the rules of the surface layer organization I, the warp J1 and the weft W2 are interlaced according to the rules of the surface layer organization II, and the warp J1 and the weft W3 are interlaced according to the rules of the surface layer organization III, the warp J2 and the weft W4 are interlaced as the inner layer organization, Figure 1 The organization configuration rules of structure model ②, structure model ③, structure model ④, structure model ⑤, structure model ⑥, structure model ⑦ and structure model ⑧ are the same as those of structure model ①.

[0080] Since the three-weft gradual coloration structure model of double warp and four-weft jacquard structure is mainly to show color on the fabric surface through the change of three groups of weft, in order to avoid the weft float being cut off and affecting the coloration effect, the method of increasing warp organization points by using weft transition is used. Taking 16 weft 9 fly weft face satin as the basic organization, setting the upper left corner as the starting point (1, 1), the basic organization I with the starting point (1, 1), the basic organization II with the starting point (4, 1) and the basic organization III with the starting point (7, 1) are designed, and based on the combination of the basic organization I, the basic organization II and the basic organization III, their respective full coloration technical point organizations are set. The method is to arrange and combine the basic organization I, the basic organization II and the basic organization III according to 1:1:1 from top to bottom to form a combined organization, keep the warp organization points of the combined organization and each 1 weft / warp organization point at the weft and warp interlacing place of the adjacent previous weft and the next weft of the weft line, reverse the remaining weft organization points in the combined organization to warp organization points, change into full coloration technical point combined organization, and then arrange and combine according to 1:1:1 from top to bottom to form the full coloration technical point organization of the basic organization I, the full coloration technical point organization of the basic organization II and the full coloration technical point organization of the basic organization III, see (a), (b) and (c) in Figure 2 .

[0081] Based on the basic organization I, without damaging the full coloration technical point, the point increasing rate of K=R=16 warp organization points is adopted for strengthening each time, the weft strengthening is first to the right, when the full coloration technical point is encountered, it is avoided, and the strengthening is returned to the left at the starting point position, forming a set of surface organization library I (a) in Figure 3 with the number of basic organizations R-2=14. Based on the basic organization II, without damaging the full coloration technical point, the point increasing rate of K=R=16 warp organization points is adopted for strengthening each time, the weft strengthening is first to the right, when the full coloration technical point is encountered, it is avoided, and the strengthening is returned to the left at the starting point position, forming a set of surface organization library II (b) in Figure 3 with the number of basic organizations R-2=14. Based on the basic organization III, without damaging the full coloration technical point, the point increasing rate of K=R=16 warp organization points is adopted for strengthening each time, the weft strengthening is first to the right, when the full coloration technical point is encountered, it is avoided, and the strengthening is returned to the left at the starting point position, forming a set of surface organization library III (c) in Figure 3 with the number of basic organizations R-2=14. In the surface organization library I, the surface organization library II and the surface organization library III, the organization numbers are numbered from 1 to 14 from left to right and from top to bottom, see Figure 3 .

[0082] In this embodiment, the weft W4 and the warp J2 are interlaced to form the inner layer structure. According to the characteristics of the surface layer structure and the principle of interlacing balance, the number of structure cycles of the inner layer structure and the surface layer structure is the same or is an integer multiple of each other, and the 16 weft 9 fly weft satin of the surface layer structure library I with the starting point (1, 1) is selected as the inner layer structure, as shown in Figure 4 .

[0083] Because the surface warp and the surface weft are interlaced to show color on the surface of the fabric, and the 16 weft 9 fly weft satin is the basic structure, the surface layer structure library I, the surface layer structure library II and the surface layer structure library III formed by the weft strengthening warp structure points interweave with the continuous weft float and the warp structure points, so the surface layer and the inner layer of the fabric are fixed by the weft warp binding method, the structure point of the surface warp on the left and right adjacent or at least one side of the binding point must be a warp structure point, to ensure that the binding structure point is always covered by the surface warp. In the process of designing the binding structure, in order to realize the transition effect of three weft uniform gradient on the surface of the three weft gradient jacquard fabric with double warp and four weft jacquard structure, the basic structure I of 16 weft 9 fly weft satin is selected as the binding structure, and the warp structure point of the obtained binding structure is always covered by the warp structure point of the shadow structure in the surface layer structure library, which meets the design requirements of the double layer structure. According to the characteristics of the surface layer structure I, it can be determined that the binding structure has only one rationality, as shown in Figure 6 .

[0084] According to the three weft gradient color structure model design of double warp and four weft jacquard structure, the combination structure is formed according to the design method of double layer structure. First of all, in the combination structure model, set the warp J1 and the warp J2 to be arranged from left to right in a 1:1 ratio, and the weft W1, the weft W2, the weft W3 and the weft W4 are arranged from top to bottom in a 1:1:1:1 ratio; secondly, the surface layer structure is configured at the position where the surface warp and the surface weft are interlaced, and the inner layer structure is configured at the position where the inner warp and the inner weft are interlaced, and all the warp at the position where the surface warp and the inner weft are interlaced is lifted, that is, the warp structure point is configured (see Figure 5 ), and the binding structure and the weft structure point are configured at the position where the inner warp and the surface weft are interlaced (see Figure 7 ).

[0085] According to the characteristics of the three weft gradient color structure model of eight double warp and four weft jacquard structures in Figure 1 , the surface layer structure ( Figure 3 ), the inner layer structure ( Figure 4 ), the binding structure ( Figure 6 ), the weft structure point ( Figure 7 ) and the warp structure point ( Figure 5 ) configured at the corresponding position are combined, that is, eight double warp and four weft jacquard structure three weft gradient color structure organization library is established.

[0086] After setting the structure model ① in Figure 1 , the combination structure is obtained as shown in Figure 8In the middle (a), combined Figure 8 The three-weft gradual coloration combination organization design process is illustrated, which is performed in sequence: drawing surface layer organization I at the interlacing position of warp J1 of A and weft W1 of A, drawing surface layer organization II at the interlacing position of warp J1 of A and weft W2 of B, drawing surface layer organization III at the interlacing position of warp J1 of A and weft W3 of C, and drawing back layer organization at the interlacing position of warp J2 of B and weft W4 of D Figure 8 In the middle (b) → arranging warp organization points at the interlacing position of warp J1 of A and weft W4 of D Figure 8 In the middle (c) → drawing stitching organization at the interlacing position of warp J2 of B and weft W1 of A, and arranging weft organization points at the interlacing position of warp J2 of B and weft W2 of B and weft W3 of C Figure 8 In the middle (d) → arranging combination of interlacing rules of warp J1 of A and weft W1 of A, weft W2 of B, weft W3 of C and weft W4 of D in a ratio of 1:1:1:1 from top to bottom, and arranging combination of interlacing rules of warp J2 of B and weft W1 of A, weft W2 of B, weft W3 of C and weft W4 of D in a ratio of 1:1:1:1 from top to bottom Figure 8 In the middle (e) → combining the above-mentioned interlacing rules of warp J1 of A and weft W1 of A, weft W2 of B, weft W3 of C and weft W4 of D and the interlacing rules of warp J2 of B and weft W1 of A, weft W2 of B, weft W3 of C and weft W4 of D in a ratio of 1:1 from left to right to form combination organization Figure 8 In the middle (f).

[0087] Based on the above implementation steps, the three-weft gradual coloration combination organization of double-warp four-weft jacquard structure is summarized, and a complete combination organization library is established. Taking Figure 1 the structure model ① as an example, the 14 weft 9-fly weft face satin surface layer organization I based on the starting point (1, 1) in the surface layer organization library I shown in Figure 3 (a), the 14 weft 9-fly weft face satin surface layer organization II based on the starting point (4, 1) in the surface layer organization library II shown in Figure 3 (b), the 14 weft 9-fly weft face satin surface layer organization III based on the starting point (7, 1) in the surface layer organization library III shown in Figure 3 (c), the basic organization I of 16 weft 9-fly weft face satin with the starting point (1, 1) as the back layer organization (i.e. Figure 4 ); the warp organization points are shown in Figure 5 ; the back warp interlaces with the surface weft A weft W1, and the basic organization I of 16 weft 5-fly weft face satin shown in Figure 6 is used as the stitching organization; the back warp does not interlace with the surface weft B weft W2, and the weft organization points are shown in Figure 7 , forming the three-weft gradual coloration combination organization library under the double-warp four-weft jacquard structure, see Figure 9 , Figure 10 , Figure 11In addition to the surface layer, the inner layer, the joint organization is fixed, therefore, the combination of tissue according to "ZH" "basic tissue I number" - "basic tissue II number" - "basic tissue III number" number, for example, "ZH1-14-14" indicates that the double warp four weft jacquard structure of three weft gradual color combination of tissue is formed by the combination of No. 1 tissue in the surface layer tissue library I, No. 14 tissue in the surface layer tissue library II and No. 14 tissue in the surface layer tissue library III (in order to distinguish, the weft W1, W2, W3 and W4 are represented by black, dark gray, medium gray and light gray, and the weft tissue points are represented by white).

[0088] In the computer bitmap mode, the digital pattern is designed, the theme is arbitrary, the color includes 8 kinds, and on the basis of each color, a series of gradient colors is designed. The obtained 8 series of gradient colors can be inserted but not overlapped in the digital pattern. In this embodiment, the maximum number of color development is: 8×(N-2) 3 =8×(16-2) 3 =21952.

[0089] The 8 series of gradient colors in the digital pattern are respectively matched with the three weft gradual color surface layer combination tissue library of 8 groups of double warp four weft jacquard structure. The surface layer tissue formed by the interweaving of each gradient color and the surface warp and weft is replaced one by one. At the same time, the inner layer tissue formed by the interweaving of the inner warp and weft, the warp tissue point formed by the interweaving of the surface warp and the inner weft, the joint tissue formed by the interweaving of the inner warp and the surface weft and the weft tissue point formed by the interweaving of the inner warp and the surface weft are combined according to the 8 types of double warp four weft jacquard structure model to form the jacquard fabric combination structure diagram of the three weft gradual color of the double warp four weft jacquard structure.

[0090] The three weft gradual color combination structure of the double warp four weft jacquard fabric is added with the warp and weft information, the warp and weft density is set, two groups of warp (black and white) and four groups of colored weft are selected, and the combination structure diagram of the jacquard fabric can be directly used for producing the three weft gradual color jacquard fabric of the double warp four weft jacquard structure. According to Figures 9-11 The partial three weft gradual color combination tissue library of the double warp four weft jacquard structure and Figure 1 The actual effect diagram formed by weaving the structure model ⑤ in Figure 12 Among them, the fabric surface square part from top to bottom, according to Figures 9-11 The partial three weft gradual color combination tissue library of the double warp four weft jacquard structure shown in Figure 1 The outer frame part of the fabric surface square is presented according to the structure model ⑤ in

[0091] The above is a specific embodiment of the present application, which is used to explain and illustrate the present application, but not to limit the present application. Any modification, replacement, deduction, or use of the present application in partial position of the fabric, etc. within the spirit and protection scope of the present application and the claims, all belong to the protection scope of the present application.

Claims

1. A three-pick gradual color development weaving method of a double warp four-pick jacquard fabric, characterized by, The steps are as follows: Step one, construct the structure model: Take the warp combination composed of A through J1 and B through J2, and the weft combination composed of A weft W1, B weft W2, C weft W3 and D weft W4 as the implementation object, take any three groups of weft and one group of warp to interweave on the surface of the fabric to show color, and the remaining one group of weft and another group of warp to interweave on the back of the fabric to form a number of double warp four weft jacquard structure three weft gradient color structure model, Step two, surface layer combination organization design: First step, select basic organization I, basic organization II and basic organization III, and their organization cycle number R is consistent, the number of flights S is consistent, but the starting point position is different, Second step, according to the basic organization I, basic organization II and basic organization III, set the corresponding full color technology point organization, the method is: combine the basic organization I, basic organization II and basic organization III in sequence to form a combination organization, when the basic organization is weft surface organization / warp surface organization, keep the warp / weft organization point of the combination organization and each 1 weft / warp organization point at the interweaving place of the adjacent previous and next weft of the weft line and the warp, reverse the remaining weft / warp organization points in the combination organization to warp / weft organization points, obtain the full color technology point combination organization, and then longitudinally decompose the combination organization to form the full color technology point organization of basic organization I, the full color technology point organization of basic organization II and the full color technology point organization of basic organization III in sequence respectively, Third step, take the basic organization I as the initial organization, and take its full color technology point organization as the terminal organization, increase / decrease the organization points to design a group of basic organization I shadow organization library, that is, surface layer organization library I, under the condition of avoiding full color technology point; at the same time, take the basic organization II as the initial organization, and take its full color technology point organization as the terminal organization, increase / decrease the organization points to design a group of basic organization II shadow organization library, that is, surface layer organization library II; Take the basic organization III as the initial organization, and take its full color technology point organization as the terminal organization, increase / decrease the organization points to design a group of basic organization III shadow organization library, that is, surface layer organization library III; Take one organization from the surface layer organization library I, surface layer organization library II and surface layer organization library III respectively, and longitudinally combine to form the surface layer combination organization of three weft gradient color under double warp four weft jacquard structure, Step three, inner layer organization design: According to the requirements of selecting the surface layer organization and the inner layer organization in the double layer structure design, the organization cycle number of the inner layer organization is the same as or an integer multiple of the organization cycle number of the surface layer organization, Step four, surface layer and inner layer relationship design of the fabric: When the surface layer and the inner layer of the fabric are not connected, the surface warp is always located on the inner weft from the front of the fabric, and at the same time, the inner warp is always located below the surface weft, When the surface layer and the inner layer of the fabric are connected, the connection organization cycle number is the same as or an integer multiple of the surface layer organization cycle number, and the surface layer and the inner layer of the fabric are fixed by selecting their own connection method, Step five, combination organization flow design: The first step is to set the arrangement ratio of J1 and J2 and arrange them horizontally, and arrange W1, W2, W3 and W4 vertically. The second step is to arrange I, II and III on the surface of the fabric according to the arrangement order of the weft, and arrange the inner layer on the position where the warp and weft are interwoven, and all the warp is lifted at the position where the warp and weft are interwoven, and all the warp is lowered at the position where the warp and weft are interwoven. The third step is to match the surface and inner layer of the fabric. Fourthly, according to the three-warp gradual change color structure model characteristics of double-warp four-weft jacquard structure, the combination structure design of each structure model is completed in turn, and the maximum number of combination structure is 8xQ B ×[(R-2)+(R-3)×(R-1)] 3 b S B b S is the number of configuration methods of the linking position structure.​​​​​ Step six: digital pattern design In the computer bitmap mode, the digital pattern is designed, the color is selected, and a series of gradient colors is designed based on each color, wherein the number of any series of gradient colors is less than or equal to the maximum value of the number of shadow organizations in the surface organization library I or the surface organization library II or the surface organization library III, which is (R-2) + (R-3) x (R-1), and the effects of each series of gradient colors in the digital pattern do not overlap each other, and the maximum number of color development is 8 x [(R-2) + (R-3) x (R-1)] 3 , Step seven: combination structure design The surface layer structure I, II and III formed by the interweaving of the warp and weft, the inner layer structure formed by the interweaving of the warp and weft, and the warp and weft floats and / or the binding structure generated by the relationship between the surface and inner layers are combined according to the jacquard structure model, wherein each series of gradient colors corresponds to each shadow organization in the surface layer structure I, II and III, and after replacing using the method of one-to-one correspondence between color and organization, a three-weft gradient color combination structure diagram under the double-warp four-weft jacquard structure is formed. Step eight: weaving Add the information of the selected warp and weft to the three-weft gradient color combination structure diagram of the double-warp four-weft jacquard structure, set the warp and weft density, select two groups of warp and four groups of weft, and use the combination structure diagram obtained in step seven for weaving, thereby obtaining a double-warp four-weft jacquard fabric with three-weft gradient color characteristics.

2. A three-pick gradual color change weaving method of a double warp four-pick jacquard fabric according to claim 1, characterized in that: In step two, the basic organization is twill or satin.

3. A three-pick gradual color change weaving method of a double-warp four-pick jacquard fabric according to claim 1, characterized in that: In step two, R is an integer and 5≤R≤48, S is an integer, and Q is the number of basic structures B The number of basic structures Q is determined by the number of tissue cycles R and the number of fly numbers S when the number of tissue cycles is R NSR The number of basic structures Q is determined by the number of tissue cycles R and the number of fly numbers S when the number of tissue cycles is R B =R×Q NSR ×[R 2 -3(R-1)]; The increase rate of the organized points is set as K, 1≤K≤R, K is an integer, when K=R, the number of the tissues in the surface tissue library I, the surface tissue library II and the surface tissue library III is the least, which is R-2, and the number of the surface combined tissues formed is the least, which is (R-2) 3 ; when K=1, the number of the tissues in the surface tissue library I, the surface tissue library II and the surface tissue library III is the most, which is (R-2)+(R-3)×(R-1), and the number of the surface combined tissues formed is the most, which is [(R-2)+(R-3)×(R-1)] 3 .

4. A three-pick gradual color change weaving method of a double warp four-pick jacquard fabric according to claim 1, characterized in that: The optional number of the inner layer weave in step three is Q b , the number of weaves arranged from left to right in the order of weaves arranged from weft to warp is n, the weave cycle number of the weave whose weave cycle number is R or its divisor or its integral multiple is R i , the fly number S of the weave whose weave cycle number is R or its divisor or its integral multiple is i i The number of weaves is Q Si , , 1≤i≤n.

5. A three-pick gradual color change weaving method of a double warp four-pick jacquard fabric according to claim 1, characterized in that, In step four, the self-bonding method includes the three ways of waistband warp surface weft bonding, surface warp waistband bonding or simultaneous use of waistband warp surface weft bonding and surface warp waistband bonding, and the number of bonding position structure configuration methods is Q S , the surface layer and the inner layer are not bonded, Q NS =1, the number of structure cycles of the bonding structure is R or an integer multiple of R, and the number of combinations of the selected number of bonding weft structure points of the surface warp waistband bonding structure is Q FSP , the number of combinations of the selected number of bonding weft structure points of the surface warp waistband bonding structure is Q BSP , and the following is satisfied: 。 6. A three-pick gradual color change weaving method of a double warp four-pick jacquard fabric according to any one of claims 1 to 5, characterized in that: In step one, J1 and J2 are arranged horizontally at a ratio of 1:1, and W1, W2, W3 and W4 are arranged vertically at a ratio of 1:1:1:

1.

7. A three-pick gradual color change weaving method of a double warp four-pick jacquard fabric according to claim 6, characterized in that, In step one, the three-weft gradient color structure model has eight: 1) J1 is the color-developing surface warp, and W1, W2 and W3 are the color-developing surface weft, which interweave to develop color on the surface of the fabric, at this time, J2 is the backing inner warp, and W4 is the backing inner weft, which interweave to develop backing on the back of the fabric; 2) J1 is the color-developing surface warp, and W1, W2 and W4 are the color-developing surface weft, which interweave to develop color on the surface of the fabric, at this time, J2 is the backing inner warp, and W3 is the backing inner weft, which interweave to develop backing on the back of the fabric; 3) J1 is the color-developing surface warp, and W1, W3 and W4 are the color-developing surface weft, which interweave to develop color on the surface of the fabric, at this time, J2 is the backing inner warp, and W2 is the backing inner weft, which interweave to develop backing on the back of the fabric; 4) J1 is the color-developing surface warp, and W2, W3 and W4 are the color-developing surface weft, which interweave to develop color on the surface of the fabric, at this time, J2 is the backing inner warp, and W1 is the backing inner weft, which interweave to develop backing on the back of the fabric; 5) J2 is the color-developing surface warp, and W1, W2 and W3 are the color-developing surface weft, which interweave to develop color on the surface of the fabric, at this time, J1 is the backing inner warp, and W4 is the backing inner weft, which interweave to develop backing on the back of the fabric; 6) J2 is the color-developing surface warp, and W1, W2 and W4 are the color-developing surface weft, which interweave to develop color on the surface of the fabric, at this time, J1 is the backing inner warp, and W3 is the backing inner weft, which interweave to develop backing on the back of the fabric; 7) the J2 warp is the color developing warp, and the color developing weft W1, W3, W4 are interwoven on the surface of the fabric to develop color, at this time, the J1 warp and the backing weft W2 are interwoven on the back of the fabric to form the backing; 8) the J2 warp is the color developing warp, and the color developing weft W2, W3, W4 are interwoven on the surface of the fabric to develop color, at this time, the J1 warp and the backing weft W1 are interwoven on the back of the fabric to form the backing.

8. A three-pick gradual color weaving method of a double warp four-pick jacquard fabric according to claim 6, characterized in that, In step two, the arrangement ratio of the longitudinal combination is 1:1:1, and the surface layer organization library has eight groups, which are: the J1 warp and the W1, W2, W3 weft surface layer organization library, the J1 warp and the W1, W2, W4 weft surface layer organization library, the J1 warp and the W1, W3, W4 weft surface layer organization library, the J1 warp and the W2, W3, W4 weft surface layer organization library, the J2 warp and the W1, W2, W3 weft surface layer organization library, the J2 warp and the W1, W2, W4 weft surface layer organization library, the J2 warp and the W1, W3, W4 weft surface layer organization library, and the J2 warp and the W2, W3, W4 weft surface layer organization library.

9. A three-pick gradual color weaving method of a double-warp four-pick jacquard fabric according to claim 8, characterized in that, The configuration position of the lining layer organization satisfies: The color developing warp is the J1 warp, and the color developing weft is the W1, W2, and W3 weft, which is obtained by interweaving the J2 warp and the W4 weft according to the lining layer organization rule; or, the color developing warp is the J1 warp, and the color developing weft is the W1, W2, and W4 weft, which is obtained by interweaving the J2 warp and the W3 weft according to the lining layer organization rule; or, the color developing warp is the J1 warp, and the color developing weft is the W1, W3, and W4 weft, which is obtained by interweaving the J2 warp and the W2 weft according to the lining layer organization rule; or, the color developing warp is the J1 warp, and the color developing weft is the W2, W3, and W4 weft, which is obtained by interweaving the J2 warp and the W1 weft according to the lining layer organization rule; or, the color developing warp is the J2 warp, and the color developing weft is the W1, W2, and W3 weft, which is obtained by interweaving the J1 warp and the W4 weft according to the lining layer organization rule; or, the color developing warp is the J2 warp, and the color developing weft is the W1, W2, and W4 weft, which is obtained by interweaving the J1 warp and the W3 weft according to the lining layer organization rule; or, the color developing warp is the J2 warp, and the color developing weft is the W1, W3, and W4 weft, which is obtained by interweaving the J1 warp and the W2 weft according to the lining layer organization rule; or, the color developing warp is the J2 warp, and the color developing weft is the W2, W3, and W4 weft, which is obtained by interweaving the J1 warp and the W1 weft according to the lining layer organization rule.

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