Skein space dyeing process-based pattern conversion method for space-dyed chenille yarn, and use
Patent Information
- Application Number
- PCT/CN2025/092857
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-03-11
- Filing Date
- 2025-05-06
- Publication Date
- 2026-09-17
Smart Images
Figure CN2025092857_17092026_PF_FP_ABST
Abstract
Description
Methods and applications for pattern conversion of variegated chenille yarn based on skein yarn variegation dyeing process Technical Field
[0001] This invention relates to a method and application for pattern conversion of variegated chenille yarn based on skein dyeing technology, belonging to the field of spinning technology. Background Technology
[0002] Variegated chenille yarn is a type of chenille yarn with multiple colors distributed along its length. It is obtained through a special variegated dyeing process, retaining the lightness, softness, and elasticity of chenille yarn while adding a sense of depth and variation through the combination of multiple colors. When used to develop woven, knitted, and tufted fabrics, it imparts a strong sense of fashion and visual impact. Due to its unique appearance, excellent drape and absorbency, and rich decorative effects, variegated chenille yarn is widely used in home textiles and knitwear.
[0003] When producing variegated chenille yarn based on variegated skein yarn, the process generally involves first variegating the skein yarn to obtain variegated skein yarn, then converting the variegated skein yarn into variegated cone yarn. The variegated cone yarn is then used as the finishing yarn, and two regular yarns are used as core yarns. The two core yarns output by the feed roller pass through the guide roller and the guide eye, respectively, and enter the twisting zone above and below the finishing yarn. The finishing yarn is wound on the spacer plate and moves towards the twisting zone along the guide plate under the push of the guide roller. During the movement, the finishing yarn is cut by the blade hidden in the spacer plate and pushed into the twisting zone between the two sets of core yarns in a manner perpendicular to the core yarn. The two core yarns twisting each other hold the finishing yarn and are firmly clamped to form variegated chenille yarn with a special structure and color segmentation.
[0004] In the process of variegated dyeing of skeins, approximately 80 nozzles are arranged along the width direction to spray 2-8 different dye solutions onto the skeins. By configuring different colors and their distribution widths, the skeins are spray-dyed to obtain variegated skeins. The color arrangement order and distribution pattern presented on the variegated skeins at this time are called the color arrangement pattern (or variegated skein pattern). Then, the variegated skeins are wound into variegated cone yarns. The color arrangement order and distribution pattern presented on the variegated cone yarns are called the color arrangement pattern (or variegated yarn pattern). Finally, the variegated cone yarns are used as decorative yarns to spin chenille yarn to obtain variegated chenille yarn. The color arrangement order and distribution pattern presented on the variegated chenille yarns are called the color arrangement pattern (or variegated chenille yarn pattern).
[0005] Because the distribution patterns of space-dyed skein yarn, space-colored cone yarn, and space-colored chenille yarn are not entirely consistent, it is necessary to deduce the distribution pattern of space-colored cone yarn based on the distribution pattern of space-dyed skein yarn, and then further obtain the space-colored chenille yarn pattern. However, how to convert between space-dyed skein yarn, space-colored cone yarn, and space-colored chenille yarn patterns? Existing technology lacks corresponding guidance, which leads to low production efficiency of space-colored chenille yarn under the current technology. Summary of the Invention
[0006] The technical problem to be solved by the present invention is to provide a method for converting variegated chenille yarn patterns based on skein dyeing process. Through model construction and design, the method can achieve efficient conversion between variegated skein yarn patterns, variegated cone yarn patterns, and variegated chenille yarn patterns.
[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention designs a pattern conversion method for variegated chenille yarn based on the skein dyeing process. For the process of obtaining variegated chenille yarn from variegated skein yarn through variegated cone yarn processing, the following steps A to B are performed to construct the pattern conversion method.
[0008] Step A. For variegated yarn, variegated cone yarn, and variegated chenille yarn, respectively, construct pattern models for the corresponding single pattern cycle regarding the color and length of the color segments, and then proceed to Step B;
[0009] Step B. Based on the pattern models corresponding to single pattern cycles for space-dyed skein yarn, space-colored cone yarn, and space-colored chenille yarn, construct mutual conversion models of pattern models between space-dyed skein yarn and space-colored cone yarn, between space-colored cone yarn and space-colored chenille yarn, and between space-dyed skein yarn and space-colored chenille yarn.
[0010] As a preferred technical solution of the present invention: In step A, the pattern model of the single pattern cycle corresponding to the segment dyed yarn with respect to the color and length of the color segment is constructed as follows:
[0011] Where n1 represents the number of color segments in the single pattern cycle corresponding to the sectional dyeing skein, C(i) represents the color of the i-th color segment in the single pattern cycle corresponding to the sectional dyeing skein, and h(i) represents the length of the i-th color segment in the single pattern cycle corresponding to the sectional dyeing skein.
[0012] The pattern model for the single pattern cycle of segmented colored yarn is constructed as follows, relating the color and length of the color segments:
[0013] Where n2 represents the number of color segments in a single pattern cycle corresponding to the segmented colored yarn. This indicates the color of the j-th color segment in the single-pattern cycle of the segmented yarn. This indicates the length of the j-th color segment in the single pattern cycle corresponding to the segmented colored yarn;
[0014] The pattern model for segmented chenille yarn corresponding to a single pattern cycle, relating to the color and length of the color segments, is constructed as follows:
[0015] Wherein, n3 represents the number of color segments in a single pattern cycle corresponding to segmented chenille yarn. This indicates the color of the k-th color segment in the single-pattern cycle of segmented chenille yarn. This indicates the length of the kth color segment in the single-pattern cycle of segmented chenille yarn.
[0016] As a preferred technical solution of the present invention: In step B, based on the pattern models corresponding to single pattern cycles of variegated skein yarn and variegated cone yarn, a mutual conversion model between variegated skein yarn and variegated cone yarn regarding the pattern model is constructed as follows:
[0017] Based on n2 = 2n1 - 2, and according to the color C(i) and length h(i) of each color segment in the single pattern cycle of the segmented dyed yarn, the colors of each color segment in the single pattern cycle of the segmented colored yarn are constructed. With length as follows:
[0018] Based on the pattern model of a single pattern cycle for variegated skein yarn, the pattern model of a single pattern cycle for variegated cone yarn is obtained as follows:
[0019] Based on n1 = n2 / 2 + 1, and according to the colors of each color segment in the single pattern cycle corresponding to the segmented yarn, With length The color C(i) and length h(i) of each color segment in the single pattern cycle of the segmented dyed skein are constructed as follows:
[0020] Based on the pattern model of a single pattern cycle for variegated cone yarn, the pattern model of a single pattern cycle for variegated skein yarn is obtained as follows:
[0021] As a preferred technical solution of the present invention: In step B, based on the pattern models corresponding to a single pattern cycle for variegated cone yarn and variegated chenille yarn, a mutual conversion model between variegated cone yarn and variegated chenille yarn regarding the pattern model is constructed as follows:
[0022] Based on the process of spinning variegated chenille yarn, variegated cone yarn is used as decorative yarn and wound on the spacer plate. After being cut by the blade, it is output to both sides. According to the width of the spacer plate is H and the thickness of the spacer plate is T, the length of each decorative yarn in the variegated chenille yarn is obtained as d = 2 × (H + T).
[0023] Based on n3 = n2, and according to the colors of each color segment in the single pattern cycle corresponding to the segmented yarn, With length Constructing segmented chenille yarn corresponding to the colors of each segment in a single floral pattern cycle With length as follows:
[0024] Based on the pattern model of a single pattern cycle for variegated cone yarn, the pattern model of a single pattern cycle for variegated chenille yarn is obtained as follows:
[0025] Based on n2 = n3, and according to the colors of each color segment in the single pattern cycle of segmented chenille yarn. With length Constructing the color of each color segment in the single pattern cycle of the segmented yarn package With length as follows:
[0026] Based on the pattern model of a single pattern cycle for variegated chenille yarn, the pattern model of a single pattern cycle for variegated cone yarn is obtained as follows:
[0027] As a preferred technical solution of the present invention: In step B, based on the pattern models corresponding to single pattern cycles of space-dyed skein yarn and space-colored chenille yarn, a mutual conversion model between space-dyed skein yarn and space-colored chenille yarn regarding the pattern model is constructed as follows:
[0028] Based on the process of spinning variegated chenille yarn, variegated cone yarn is used as decorative yarn and wound on the spacer plate. After being cut by the blade, it is output to both sides. According to the width of the spacer plate is H and the thickness of the spacer plate is T, the length of each decorative yarn in the variegated chenille yarn is obtained as d = 2 × (H + T).
[0029] Based on n3 = 2n1 - 2, and according to the color C(i) and length h(i) of each color segment in the single pattern cycle of the segmented dyed shredded yarn, the colors of each color segment in the single pattern cycle of the segmented chenille yarn are constructed. With length as follows:
[0030] Based on the pattern model of a single pattern cycle for space-dyed skein yarn, the pattern model of a single pattern cycle for space-colored chenille yarn is obtained as follows:
[0031] Based on n1 = n3 / 2 + 1, and according to the colors of each color segment in the single pattern cycle of segmented chenille yarn. With length The color C(i) and length h(i) of each color segment in the single pattern cycle of the segmented dyed skein are constructed as follows:
[0032] Based on the pattern model of a single pattern cycle for variegated chenille yarn, the pattern model of a single pattern cycle for variegated skein yarn is obtained as follows:
[0033] Corresponding to the above, the technical problem that this invention also needs to solve is to provide an application of a method for converting variegated chenille yarn patterns based on skein dyeing process, so as to efficiently realize the rapid conversion between variegated skein dyeing patterns and variegated chenille yarn patterns, and improve the working efficiency and pattern accuracy of variegated chenille yarn spinning.
[0034] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention designs an application of a method for converting the pattern of segmented chenille yarn based on the skein dyeing process, including performing the following steps C1 to C3 according to the pattern of the target segmented dyed skein yarn to construct the pattern of the corresponding target segmented chenille yarn;
[0035] Step C1. Based on the color C(i) and length h(i) of each color segment in the single pattern cycle corresponding to the target segment dyed skein pattern, and the number n1 of color segments in the single pattern cycle of the target segment dyed skein pattern (1≤i≤n1), execute the following formula according to n2=2n1-2, 1≤j≤n2:
[0036] Obtain the colors of each color segment in the corresponding single pattern cycle of the target segment colored yarn. With length And the number of color segments n2 in the corresponding target segment color yarn single pattern cycle, and then proceed to step C2;
[0037] Step C2. Based on the spinning process of segmented chenille yarn, the segmented yarn is wound as decorative yarn on the spacer plate and cut by the blade and output to both sides. According to the width of the spacer plate is H and the thickness of the spacer plate is T, the length d of each decorative yarn in the corresponding target segmented chenille yarn is obtained as 2×(H+T), and then proceed to step C3.
[0038] Step C3. Based on the colors of each color segment in the corresponding single pattern cycle of the target segment colored yarn pattern. With length And the number of color segments n2 in the corresponding target segment color yarn single pattern cycle, according to n3=n2、1≤k≤n3, the following formula is executed:
[0039] Obtain the colors of each color segment in the corresponding single-pattern cycle of the target segment colored chenille yarn. With length And the number of color segments n3 in the corresponding target segment colored chenille yarn single pattern cycle.
[0040] As a preferred technical solution of the present invention: according to the pattern of the target segment dyed skein yarn, the following operations are performed to construct the pattern of the corresponding target segment colored chenille yarn;
[0041] Firstly, based on the spinning process of segmented chenille yarn, segmented yarn is used as decorative yarn and wound on the spacer plate. After being cut by the blade, it is output to both sides. According to the width of the spacer plate being H and the thickness of the spacer plate being T, the length of each decorative yarn in the corresponding target segmented chenille yarn is obtained as d = 2 × (H + T).
[0042] Then, based on the color C(i) and length h(i) of each color segment in the single pattern cycle corresponding to the target section dyed skein pattern, and the number n1 of color segments in the single pattern cycle of the target section dyed skein pattern (1≤i≤n1), the following formula is executed according to n3=2n1-2, 1≤k≤n3:
[0043] Obtain the colors of each color segment in the corresponding single-pattern cycle of the target segment colored chenille yarn. With length And the number of color segments n3 in the corresponding target segment colored chenille yarn single pattern cycle.
[0044] As a preferred technical solution of the present invention: it further includes performing the following steps D1 to D3 according to the pattern of the target segment colored chenille yarn to construct the pattern of the corresponding target segment dyed skein yarn;
[0045] Step D1. Based on the process of spinning segmented chenille yarn, segmented yarn is used as decorative yarn and wound on the spacer plate. After being cut by the blade, it is output to both sides. According to the width of the spacer plate is H and the thickness of the spacer plate is T, the length of each decorative yarn in the target segmented chenille yarn is obtained as d = 2 × (H + T). Then proceed to step D2.
[0046] Step D2. Based on the colors of each color segment in the single pattern cycle corresponding to the target segment of the colored chenille yarn pattern. With length And the number of color segments n3 in the single pattern cycle of the target segment colored chenille yarn, 1≤k≤n3, are calculated according to n2=n3, 1≤j≤n2, using the following formula:
[0047] Obtain the colors of each color segment in the corresponding single pattern cycle of the target segment colored yarn. With length And the number of color segments n2 in the corresponding target segment color yarn single pattern cycle, and then proceed to step D3;
[0048] Step D3. Based on the colors of each color segment in the corresponding single pattern cycle of the target segment colored yarn package. With length And the number of color segments n2 in the corresponding target segment color yarn single pattern cycle, according to n1=n2 / 2+1, 1≤i≤n1, execute the following formula:
[0049] Obtain the color C(i) and length h(i) of each color segment in the corresponding single pattern cycle of the target segment dyed yarn, as well as the number n1 of color segments in the corresponding single pattern cycle of the target segment dyed yarn.
[0050] As a preferred technical solution of the present invention: according to the pattern of the target segment colored chenille yarn, the following operations are performed to construct the pattern of the corresponding target segment dyed skein yarn;
[0051] Firstly, based on the spinning process of segmented chenille yarn, segmented yarn is used as decorative yarn and wound on the spacer plate. After being cut by the blade, it is output to both sides. According to the width of the spacer plate being H and the thickness of the spacer plate being T, the length of each decorative yarn in the target segmented chenille yarn is obtained as d = 2 × (H + T).
[0052] Then, based on the colors of each color segment in the single pattern cycle corresponding to the target segment of colored chenille yarn pattern... With length And the number of color segments n3 in the single pattern cycle of the target segment colored chenille yarn, 1≤k≤n3, are calculated according to n1=n3 / 2+1, 1≤i≤n1, using the following formula:
[0053] Obtain the color C(i) and length h(i) of each color segment in the corresponding single pattern cycle of the target segment dyed yarn, as well as the number n1 of color segments in the corresponding single pattern cycle of the target segment dyed yarn.
[0054] The method and application of pattern conversion for variegated chenille yarn based on skein dyeing process described in this invention, compared with the prior art, has the following technical effects:
[0055] (1) The pattern conversion method for sliver-dyed chenille yarn based on the sliver-dyed process designed in this invention is for the process of obtaining sliver-dyed chenille yarn by processing sliver-dyed sliver into sliver-dyed cone yarn. Starting from the pattern model design of sliver-dyed sliver, sliver-dyed cone yarn and sliver-dyed chenille yarn corresponding to single pattern cycles, a mutual conversion model of pattern models between two yarns is constructed. Corresponding applications are designed for the actual design and weaving process of sliver-dyed chenille yarn. Based on the pattern design of sliver-dyed sliver, the pattern of the corresponding sliver-dyed chenille yarn can be accurately predicted, or the pattern of the corresponding sliver-dyed sliver can be reversed based on the pattern of the sliver-dyed chenille yarn. This can effectively improve the efficiency and accuracy of sliver-dyed chenille yarn design and weaving. Attached Figure Description
[0056] Figure 1 is a schematic diagram of the colors and lengths of each color segment in a single pattern cycle of section-dyed skein yarn;
[0057] Figure 2 is a schematic diagram of the colors and lengths of each color segment in a single pattern cycle of segmented colored yarn;
[0058] Figure 3 is a schematic diagram of the colors and lengths of each color segment in a single floral pattern cycle for segmented chenille yarn;
[0059] Figure 4a is a schematic diagram of the colors and lengths of each color segment in the embodiment of the segmented colored yarn;
[0060] Figure 4b is a schematic diagram of the movement trajectory of the decorative yarn during the chenille yarn spinning process;
[0061] Figure 4c is a schematic diagram of the colors and lengths of each color segment of the segmented chenille yarn corresponding to the embodiment in Figure 4a;
[0062] Figure 5 is a list of the corresponding target segment colored yarn patterns obtained by converting the target segment dyed yarn pattern into a list of the embodiments.
[0063] Figure 6 is a list of the target segment dyed yarn patterns obtained by converting the target segment colored yarn pattern into a list of the target segment dyed yarn patterns in the embodiment.
[0064] Figure 7 is a schematic diagram of the color list for each segment of the yarn segment dyeing example;
[0065] Figure 8 is a schematic diagram of the dyeing process of segmented colored yarn;
[0066] Figure 9 is a schematic diagram of the structure of a skein dyeing machine;
[0067] Figure 10 is a schematic diagram of different colored segmented dyed yarns obtained by spray dyeing according to the embodiment of the parameters shown in Table 2;
[0068] Figure 11 is a schematic diagram of the conversion of different colored segment-dyed skeins shown in Figure 10 into corresponding segment-colored cone yarns.
[0069] Among them, 1. chemical cylinder, 2. dye liquor, 3. feed pump, 4. connector, 5. conveying hose, 6. nozzle, 7. yarn twisting, 8. yarn twisting conveyor belt, and 9. roller. Detailed Implementation
[0070] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.
[0071] To address the shortcomings of existing technologies, this invention specifically designs a pattern conversion method for variegated chenille yarn based on the skein dyeing process. For the process of obtaining variegated chenille yarn from skein dyed skein yarn through variegated cone yarn processing, the following steps A to B are performed to construct the pattern conversion method.
[0072] Step A. For variegated skein yarn, variegated cone yarn, and variegated chenille yarn, respectively, construct the corresponding single pattern cycle pattern model with respect to the color and length of the color segments, and then proceed to Step B.
[0073] In practical applications, as shown in Figure 1, after a skein of yarn with a circumference of 2L1 is straightened, it is subjected to sectional dyeing within a width of L1. If the width L1 is used as a reference to divide it into n1 color segments and p colors are sprayed in sequence (n1≥p), then the pattern model of the single pattern cycle of the sectional dyed skein with respect to the color and length of the color segments is constructed as follows:
[0074] Where n1 represents the number of color segments in the single pattern cycle of the variegated yarn, C(i) represents the color of the i-th color segment in the single pattern cycle of the variegated yarn, and h(i) represents the length of the i-th color segment in the single pattern cycle of the variegated yarn.
[0075] As shown in Figure 2, the pattern model for the single pattern cycle of segmented colored yarn with respect to the color and length of the color segment is constructed as follows:
[0076] Where n2 represents the number of color segments in a single pattern cycle corresponding to the segmented colored yarn. This indicates the color of the j-th color segment in the single-pattern cycle of the segmented yarn. This indicates the length of the j-th color segment in the single pattern cycle of the segmented colored yarn.
[0077] As shown in Figure 3, the pattern model for the single pattern cycle of segmented chenille yarn with respect to the color and length of the color segment is constructed as follows:
[0078] Wherein, n3 represents the number of color segments in a single pattern cycle corresponding to segmented chenille yarn. This indicates the color of the k-th color segment in the single-pattern cycle of segmented chenille yarn. This indicates the length of the kth color segment in the single-pattern cycle of segmented chenille yarn.
[0079] Step B. Based on the pattern models corresponding to single pattern cycles for space-dyed skein yarn, space-colored cone yarn, and space-colored chenille yarn, construct mutual conversion models of pattern models between space-dyed skein yarn and space-colored cone yarn, between space-colored cone yarn and space-colored chenille yarn, and between space-dyed skein yarn and space-colored chenille yarn.
[0080] In practical applications, the mutual conversion model of pattern models between space-dyed skeins and space-colored cone yarns is constructed based on the pattern models corresponding to single pattern cycles for space-dyed skeins and space-colored cone yarns, as follows:
[0081] Based on n2 = 2n1 - 2, i.e., n2 is an even number, and according to the color C(i) and length h(i) of each color segment in the single pattern cycle of the segmented dyed yarn, the color of each color segment in the single pattern cycle of the segmented colored yarn is constructed. With length as follows:
[0082] Based on the pattern model of a single pattern cycle for variegated skein yarn, the pattern model of a single pattern cycle for variegated cone yarn is obtained as follows:
[0083] Based on the conversion rules between variegated skein yarn and variegated cone yarn, it is known that the maximum number of color segments n2 in one pattern cycle of variegated cone yarn must be an even number. Therefore, the number of color segments n1 < n2 in one pattern cycle of variegated skein yarn. Then, based on n1 = n2 / 2 + 1, and according to the colors of each color segment in the corresponding single pattern cycle of variegated cone yarn... With length The color C(i) and length h(i) of each color segment in the single pattern cycle of the segmented dyed skein are constructed as follows:
[0084] Based on the pattern model of a single pattern cycle for variegated cone yarn, the pattern model of a single pattern cycle for variegated skein yarn is obtained as follows:
[0085] Regarding the mutual conversion model of pattern models between variegated cone yarn and variegated chenille yarn, based on the pattern models corresponding to a single pattern cycle for variegated cone yarn and variegated chenille yarn respectively, the following model is constructed:
[0086] Based on the spinning process of variegated chenille yarn, variegated cone yarn is used as decorative yarn and wound on a spacer plate. After being cut by a blade, it is output to both sides. According to the width of the spacer plate being H and the thickness of the spacer plate being T, the length of each decorative yarn in the variegated chenille yarn is obtained as d = 2 × (H + T).
[0087] In practical applications, as shown in Figures 4a, 4b, and 4c, it was found that both segmented yarn and segmented chenille yarn have the same color in each segment within the pattern cycle, but the segment lengths are different; that is, based on n3 = n2, according to the color of each segment in the single pattern cycle corresponding to the segmented yarn... With length Constructing segmented chenille yarn corresponding to the colors of each segment in a single floral pattern cycle With length as follows:
[0088] Based on the pattern model of a single pattern cycle for variegated cone yarn, the pattern model of a single pattern cycle for variegated chenille yarn is obtained as follows:
[0089] Based on n2 = n3, and according to the colors of each color segment in the single pattern cycle of segmented chenille yarn. With length Constructing the color of each color segment in the single pattern cycle of the segmented yarn package With length as follows:
[0090] Based on the pattern model of a single pattern cycle for variegated chenille yarn, the pattern model of a single pattern cycle for variegated cone yarn is obtained as follows:
[0091] Regarding the mutual conversion model of pattern models between space-dyed skein yarn and space-colored chenille yarn, based on the pattern models corresponding to a single pattern cycle for space-dyed skein yarn and space-colored chenille yarn respectively, the following model is constructed:
[0092] Based on the process of spinning variegated chenille yarn, variegated cone yarn is used as decorative yarn and wound on the spacer plate. After being cut by the blade, it is output to both sides. According to the width of the spacer plate is H and the thickness of the spacer plate is T, the length of each decorative yarn in the variegated chenille yarn is obtained as d = 2 × (H + T).
[0093] Based on n3 = 2n1 - 2, and according to the color C(i) and length h(i) of each color segment in the single pattern cycle of the segmented dyed shredded yarn, the colors of each color segment in the single pattern cycle of the segmented chenille yarn are constructed. With length as follows:
[0094] Based on the pattern model of a single pattern cycle for space-dyed skein yarn, the pattern model of a single pattern cycle for space-colored chenille yarn is obtained as follows:
[0095] Based on n1 = n3 / 2 + 1, and according to the colors of each color segment in the single pattern cycle of segmented chenille yarn. With length The color C(i) and length h(i) of each color segment in the single pattern cycle of the segmented dyed skein are constructed as follows:
[0096] Based on the pattern model of a single pattern cycle for variegated chenille yarn, the pattern model of a single pattern cycle for variegated skein yarn is obtained as follows:
[0097] Based on the above-mentioned conversion models of pattern models between variegated yarn and variegated cone yarn, between variegated cone yarn and variegated chenille yarn, and between variegated yarn and variegated chenille yarn, further designs are made for practical applications, including performing the following steps C1 to C3 according to the pattern of the target variegated yarn to construct the corresponding pattern of the target variegated chenille yarn.
[0098] Step C1. Based on the color C(i) and length h(i) of each color segment in the single pattern cycle corresponding to the target segment dyed skein pattern, and the number n1 of color segments in the single pattern cycle of the target segment dyed skein pattern (1≤i≤n1), execute the following formula according to n2=2n1-2, 1≤j≤n2:
[0099] Obtain the colors of each color segment in the corresponding single pattern cycle of the target segment colored yarn. With length And the number of color segments n2 in the corresponding target segment color yarn single pattern cycle, and then proceed to step C2.
[0100] In practical applications, the specific implementation of step C1 above is shown in the table in Figure 5.
[0101] Step C2. Based on the process of spinning segmented chenille yarn, segmented yarn is used as decorative yarn and wound on the spacer plate. After being cut by the blade, it is output to both sides. According to the width of the spacer plate is H and the thickness of the spacer plate is T, the length d of each decorative yarn in the corresponding target segmented chenille yarn is obtained as 2×(H+T). Then proceed to step C3.
[0102] Step C3. Based on the colors of each color segment in the corresponding single pattern cycle of the target segment colored yarn pattern. With length And the number of color segments n2 in the corresponding target segment color yarn single pattern cycle, according to n3=n2、1≤k≤n3, the following formula is executed:
[0103] Obtain the colors of each color segment in the corresponding single-pattern cycle of the target segment colored chenille yarn. With length And the number of color segments n3 in the corresponding target segment colored chenille yarn single pattern cycle.
[0104] Following the steps C1 to C3 described above, in practical applications, after conversion, the following operations can be performed directly based on the pattern of the target segment dyed skein yarn to construct the pattern of the corresponding target segment colored chenille yarn.
[0105] Firstly, based on the spinning process of segmented chenille yarn, segmented yarn is used as decorative yarn and wound on a spacer plate. After being cut by a blade, it is output to both sides. According to the width of the spacer plate being H and the thickness of the spacer plate being T, the length of each decorative yarn in the corresponding target segmented chenille yarn is obtained as d = 2 × (H + T).
[0106] Then, based on the color C(i) and length h(i) of each color segment in the single pattern cycle corresponding to the target section dyed skein pattern, and the number n1 of color segments in the single pattern cycle of the target section dyed skein pattern (1≤i≤n1), the following formula is executed according to n3=2n1-2, 1≤k≤n3:
[0107] Obtain the colors of each color segment in the corresponding single-pattern cycle of the target segment colored chenille yarn. With length And the number of color segments n3 in the corresponding target segment colored chenille yarn single pattern cycle.
[0108] A further application of the present invention includes, based on the pattern of the target segment dyed chenille yarn, performing the following steps D1 to D3 to construct the pattern of the corresponding target segment dyed skein yarn.
[0109] Step D1. Based on the process of spinning segmented chenille yarn, segmented yarn is used as decorative yarn and wound on the spacer plate. After being cut by the blade, it is output to both sides. According to the width of the spacer plate is H and the thickness of the spacer plate is T, the length of each decorative yarn in the target segmented chenille yarn is obtained as d = 2 × (H + T). Then proceed to step D2.
[0110] Step D2. Based on the colors of each color segment in the single pattern cycle corresponding to the target segment of the colored chenille yarn pattern. With length And the number of color segments n3 in the single pattern cycle of the target segment colored chenille yarn, 1≤k≤n3, are calculated according to n2=n3, 1≤j≤n2, using the following formula:
[0111] Obtain the colors of each color segment in the corresponding single pattern cycle of the target segment colored yarn. With length And the number of color segments n2 in the corresponding target segment color yarn single pattern cycle, and then proceed to step D3.
[0112] Step D3. Based on the colors of each color segment in the corresponding single pattern cycle of the target segment colored yarn package. With length And the number of color segments n2 in the corresponding target segment color yarn single pattern cycle, according to n1=n2 / 2+1, 1≤i≤n1, execute the following formula:
[0113] Obtain the color C(i) and length h(i) of each color segment in the corresponding single pattern cycle of the target segment dyed yarn, as well as the number n1 of color segments in the corresponding single pattern cycle of the target segment dyed yarn.
[0114] In practical applications, specific embodiments of step D3 described above are shown in the table in Figure 6.
[0115] Following steps D1 to D3 as described above, in practical applications, after conversion, the following operations can be performed directly based on the pattern of the target segment colored chenille yarn to construct the corresponding pattern of the target segment dyed skein yarn.
[0116] Firstly, based on the spinning process of segmented chenille yarn, segmented yarn is used as decorative yarn and wound on a spacer plate. After being cut by a blade, it is output to both sides. According to the width of the spacer plate being H and the thickness of the spacer plate being T, the length of each decorative yarn in the target segmented chenille yarn is obtained as d = 2 × (H + T).
[0117] Then, based on the colors of each color segment in the single pattern cycle corresponding to the target segment of colored chenille yarn pattern... With length And the number of color segments n3 in the single pattern cycle of the target segment colored chenille yarn, 1≤k≤n3, are calculated according to n1=n3 / 2+1, 1≤i≤n1, using the following formula:
[0118] Obtain the color C(i) and length h(i) of each color segment in the corresponding single pattern cycle of the target segment dyed yarn, as well as the number n1 of color segments in the corresponding single pattern cycle of the target segment dyed yarn.
[0119] The above-designed technical solution is applied to actual implementation, and is executed in the following order:
[0120] 1. Variegated yarn tube pattern design
[0121] The number of colors, the order of color segments, the length of each color segment, and the cycle length of the pattern in variegated yarn designs have a significant impact on the appearance and color effect of chenille yarn products. When designing variegated yarn patterns, it is necessary to consider the product's aesthetic requirements, popular colors, and various cultural and fashion elements while taking into account consumer aesthetic preferences. Examples of variegated yarn pattern designs are shown in Table 1.
[0122] Table 1
[0123] 2. Design of yarn section dyeing mode
[0124] The skein dyeing pattern is related to the pattern of the skein yarn. Changes in parameters such as the number of colors in the pattern, the order of color segments, the length of each color segment, and the period length of the pattern will affect the skein dyeing pattern. Therefore, before designing the skein dyeing pattern, it is necessary to determine the skein yarn pattern. Based on the design of the skein yarn pattern, the periodic relationship between the skein yarn pattern and the skein dyeing pattern, the width of the skein after straightening, the number of skein segments, the color arrangement of each color segment, and the corresponding length are obtained. The skein dyeing pattern is then determined, as shown in Table 2.
[0125] Table 2
[0126] 3. Color value design for each color segment
[0127] By precisely setting the color values for each segment, the skein yarn can achieve the desired effect, as shown in Figure 7.
[0128] 4. Design of dyeing process for variegated yarn
[0129] Polyester filaments with a specification of 16.7 tex / 288f were selected as raw materials. To ensure that the subsequent spinning of chenille yarn would not cause color mismatch between yarn segments due to yarn breakage, the polyester filaments needed to be combined. Six polyester filaments were combined to 100 tex, spun into strands, and then dyed, as shown in Figure 8. Auxiliaries and disperse dyes were added at an initial temperature of 40℃, and the temperature was increased to 130℃ at a rate of 2℃ / min. The holding time was determined according to the desired color depth; the fixing time for light-colored yarns was about 20 minutes, while for dark-colored yarns it was about 50 minutes. This allowed the dye to combine with the fiber at high temperature, achieving the purpose of color fixation. After dyeing, the temperature was quickly lowered to room temperature, and the yarn was rinsed with room temperature water to remove any excess dye, ensuring that the dye was firmly fixed within the fiber.
[0130] 5. Preparation of space-dyed slivers based on a sliver dyeing machine
[0131] As shown in Figure 9, the skein dyeing machine can spray 1 to n1 different colors of dye liquor evenly distributed along its width. According to the dye liquor formula for each color, the required dyes, auxiliaries, and water are added and mixed evenly in the mixing cylinder 1 under the action of a mixer to obtain the dye. The feed pump 3 outputs the dye liquor from the mixing cylinder 1 to the corresponding color nozzles. The dye liquor sprayed from each color nozzle is evenly sprayed onto the skein 7. Driven by the skein conveyor belt 8, the skein is squeezed out of excess dye liquor by the action of rollers 9, and the dye liquor is adsorbed onto the yarn. Then, high-temperature steaming is used to achieve segmented dyeing of the skein.
[0132] The different distribution patterns of different colored dyes sprayed from each nozzle along the width will cause changes in the pattern distribution pattern of the variegated yarn, thus affecting the different pattern patterns of the variegated cone yarn and the variegated chenille yarn.
[0133] By performing step A of the present invention, pattern models for the single pattern cycle of segmented dyed skein yarn, segmented colored cone yarn, and segmented colored chenille yarn are constructed, respectively, regarding the color and length of the color segments.
[0134] 6. Preparation of variegated skein yarn and variegated cone yarn
[0135] Based on the parameters shown in Table 2, and using the color values of each color segment selected above and the designed dyeing liquor formula, the skein yarn is spray-dyed in the color segment arrangement order of abcba and the segment length of 10-20-20-20-10cm to obtain the segment-dyed skein yarn as shown in Figure 10. The segment-dyed skein yarn is then further wound into segment-colored cone yarn, as shown in Figure 11.
[0136] 7. Spinning and performance testing of variegated chenille yarn
[0137] Raw material selection: The core yarn is made of 36.9 tex polyester, and the decorative yarn is made of 100 tex polyester space-dyed yarn.
[0138] Spinning process: The core yarn is fed with 4 yarns, and the decorative yarn is fed with 1 yarn. The spinning process of chenille yarn is as follows: spindle speed 7000 r / min, spacer width 7.5 mm, core yarn output speed 6.8 m / min, spindle speed 3600 r / min, designed twist of 530 twists / m, and linear density of 1270 tex. Eight different colors of variegated chenille yarn are spun according to this process.
[0139] Performance testing: The basic intrinsic quality of the spun colored chenille yarn, such as linear density deviation rate, coefficient of variation, twist coefficient of variation, and average breaking strength, is evaluated with reference to the industry quality assessment standard FA / T 22003-2006. The tensile properties of chenille yarn were tested using a YG021A-III electronic single yarn tensile strength tester. The clamping distance was 250 mm, the stretching speed was 250 mm / min, and the pretension was 1 N. Ten consecutive tests were conducted, and the average value was taken. The linear density of chenille yarn was tested using a YG086C yarn length measuring instrument. The yarn frame rotation speed was 200 r / min, the number of turns was set to 10 turns, each turn was 1 m, and the pretension was 150 cN. Ten consecutive tests were conducted, and the linear density of chenille yarn was obtained and the average value was taken. The linear density deviation rate and linear density coefficient of variation were calculated. The twist of chenille yarn was tested using a Y331A yarn twist meter. The untwisting and retwisting method was used, the yarn twist direction was S twist, the clamping length was 250 mm, and 15 consecutive tests were conducted. The twist of chenille yarn was obtained and the average value was taken. The twist deviation rate and twist coefficient of variation of chenille yarn were calculated. The test results are shown in Table 3.
[0140] Table 3
[0141] Test results show that the breaking strength of the spun chenille yarn is 5091.4 cN, the coefficient of variation of strength is 3.79%, the breaking elongation is 19.1%, the average linear density is 1346 tex, the linear density deviation rate is 5.98%, the linear density coefficient of variation is 2.35%, the twist is 550.9 twists / m, the twist deviation rate is 3.94%, and the twist coefficient of variation is 5.02%. All of these meet the relevant standards for high-grade chenille yarn for weaving, verifying the feasibility and stability of the entire process.
[0142] The above-mentioned technical solution, based on the skein dyeing process, designs a pattern conversion method for skein chenille yarn. This method addresses the process of obtaining skein chenille yarn from skein dyed skein yarn through skein dyed cone yarn processing. Starting with the pattern model design corresponding to a single pattern cycle for each of the skein dyed skein yarn, skein dyed cone yarn, and skein chenille yarn, it constructs a mutual conversion model between the pattern models of each pair of yarns. Furthermore, it designs corresponding applications for the actual design and weaving process of skein chenille yarn. Based on the pattern design of the skein dyed skein yarn, it accurately predicts the pattern of the corresponding skein chenille yarn, or, based on the pattern of the skein chenille yarn, it reverses the pattern of the corresponding skein dyed skein yarn. This effectively improves the efficiency and accuracy of skein chenille yarn design and weaving.
[0143] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A method for pattern conversion of variegated chenille yarn based on skein yarn variegation dyeing process, characterized in that: For the process of obtaining variegated chenille yarn from variegated skein yarn through variegated cone yarn processing, the following steps A to B are performed to construct a pattern conversion method; Step A. For variegated skein yarn, variegated cone yarn, and variegated chenille yarn, respectively, construct the corresponding single pattern cycle pattern model with respect to the color and length of the color segment, and then proceed to Step B; Step B. Based on the pattern models corresponding to single pattern cycles for space-dyed skein yarn, space-colored cone yarn, and space-colored chenille yarn, construct mutual conversion models of pattern models between space-dyed skein yarn and space-colored cone yarn, between space-colored cone yarn and space-colored chenille yarn, and between space-dyed skein yarn and space-colored chenille yarn.
2. The method for pattern conversion of variegated chenille yarn based on skein dyeing process according to claim 1, characterized in that: In step A, the pattern model for the single pattern cycle of the segment-dyed skein yarn with respect to the color and length of the color segment is constructed as follows: Where n1 represents the number of color segments in the single pattern cycle corresponding to the sectional dyeing skein, C(i) represents the color of the i-th color segment in the single pattern cycle corresponding to the sectional dyeing skein, and h(i) represents the length of the i-th color segment in the single pattern cycle corresponding to the sectional dyeing skein. The pattern model for the single pattern cycle of segmented colored yarn is constructed as follows, relating the color and length of the color segments: Where n2 represents the number of color segments in a single pattern cycle corresponding to the segmented colored yarn. This indicates the color of the j-th color segment in the single-pattern cycle of the segmented yarn. This indicates the length of the j-th color segment in the single pattern cycle corresponding to the segmented colored yarn; The pattern model for segmented chenille yarn corresponding to a single pattern cycle, relating to the color and length of the color segments, is constructed as follows: Wherein, n3 represents the number of color segments in a single pattern cycle corresponding to segmented chenille yarn. This indicates the color of the k-th color segment in the single-pattern cycle of segmented chenille yarn. This indicates the length of the kth color segment in the single-pattern cycle of segmented chenille yarn.
3. The method for pattern conversion of variegated chenille yarn based on skein dyeing process according to claim 2, characterized in that: In step B, based on the pattern models corresponding to single pattern cycles for variegated skein yarn and variegated cone yarn, a mutual conversion model between the pattern models of variegated skein yarn and variegated cone yarn is constructed as follows: Based on n2 = 2n1 - 2, and according to the color C(i) and length h(i) of each color segment in the single pattern cycle of the segmented dyed yarn, the color of each color segment in the single pattern cycle of the segmented colored yarn is constructed. With length as follows: Based on the pattern model of a single pattern cycle for variegated skein yarn, the pattern model of a single pattern cycle for variegated cone yarn is obtained as follows: Based on n1 = n2 / 2 + 1, and according to the colors of each color segment in the single pattern cycle corresponding to the segmented yarn, With length The color C(i) and length h(i) of each color segment in the single pattern cycle of the segmented dyed skein are constructed as follows: Based on the pattern model of a single pattern cycle for variegated cone yarn, the pattern model of a single pattern cycle for variegated skein yarn is obtained as follows:
4. The method for pattern conversion of variegated chenille yarn based on skein yarn dyeing process according to claim 2, characterized in that: In step B, based on the pattern models corresponding to a single pattern cycle for variegated cone yarn and variegated chenille yarn, a mutual conversion model between the pattern models of variegated cone yarn and variegated chenille yarn is constructed as follows: Based on the process of spinning variegated chenille yarn, variegated cone yarn is used as decorative yarn and wound on the spacer plate. After being cut by the blade, it is output to both sides. According to the width of the spacer plate is H and the thickness of the spacer plate is T, the length of each decorative yarn in the variegated chenille yarn is obtained as d = 2 × (H + T). Based on n3 = n2, and according to the colors of each color segment in the single pattern cycle corresponding to the segmented yarn, With length Constructing segmented chenille yarn corresponding to the colors of each segment in a single floral pattern cycle With length as follows: Based on the pattern model of a single pattern cycle for variegated cone yarn, the pattern model of a single pattern cycle for variegated chenille yarn is obtained as follows: Based on n2 = n3, and according to the colors of each color segment in the single pattern cycle of segmented chenille yarn. With length Constructing the color of each color segment in the single pattern cycle of the segmented yarn package With length as follows: Based on the pattern model of a single pattern cycle for variegated chenille yarn, the pattern model of a single pattern cycle for variegated cone yarn is obtained as follows:
5. The method for pattern conversion of variegated chenille yarn based on skein dyeing process according to claim 2, characterized in that: In step B, based on the pattern models corresponding to single pattern cycles for space-dyed skein yarn and space-colored chenille yarn, a mutual conversion model between space-dyed skein yarn and space-colored chenille yarn regarding pattern models is constructed as follows: Based on the process of spinning variegated chenille yarn, variegated cone yarn is used as decorative yarn and wound on the spacer plate. After being cut by the blade, it is output to both sides. According to the width of the spacer plate is H and the thickness of the spacer plate is T, the length of each decorative yarn in the variegated chenille yarn is obtained as d = 2 × (H + T). Based on n3 = 2n1 - 2, and according to the color C(i) and length h(i) of each color segment in the single pattern cycle of the segmented dyed shredded yarn, the colors of each color segment in the single pattern cycle of the segmented chenille yarn are constructed. With length as follows: Based on the pattern model of a single pattern cycle for space-dyed skein yarn, the pattern model of a single pattern cycle for space-colored chenille yarn is obtained as follows: Based on n1 = n3 / 2 + 1, and according to the colors of each color segment in the single pattern cycle of segmented chenille yarn. With length The color C(i) and length h(i) of each color segment in the single pattern cycle of the segmented dyed skein are constructed as follows: Based on the pattern model of a single pattern cycle for variegated chenille yarn, the pattern model of a single pattern cycle for variegated skein yarn is obtained as follows:
6. The application of the method for pattern conversion of variegated chenille yarn based on the skein yarn variegation dyeing process as described in claim 2, characterized in that: This includes performing steps C1 to C3 based on the pattern of the target segment dyed skein yarn to construct the pattern of the corresponding target segment colored chenille yarn; Step C1. Based on the color C(i) and length h(i) of each color segment in the single pattern cycle corresponding to the target segment dyed skein pattern, and the number n1 of color segments in the single pattern cycle of the target segment dyed skein pattern (1≤i≤n1), execute the following formula according to n2=2n1-2, 1≤j≤n2: Obtain the colors of each color segment in the corresponding single pattern cycle of the target segment colored yarn. With length And the number of color segments n2 in the corresponding target segment color yarn single pattern cycle, and then proceed to step C2; Step C2. Based on the spinning process of segmented chenille yarn, the segmented yarn is wound as decorative yarn on the spacer plate and cut by the blade and output to both sides. According to the width of the spacer plate is H and the thickness of the spacer plate is T, the length d of each decorative yarn in the corresponding target segmented chenille yarn is obtained as 2×(H+T), and then proceed to step C3. Step C3. Based on the colors of each color segment in the corresponding single pattern cycle of the target segment colored yarn pattern. With length And the number of color segments n2 in the corresponding target segment color yarn single pattern cycle, according to n3=n2、1≤k≤n3, the following formula is executed: Obtain the colors of each color segment in the corresponding single-pattern cycle of the target segment colored chenille yarn. With length And the number of color segments n3 in the corresponding target segment colored chenille yarn single pattern cycle.
7. The application of the method for pattern conversion of variegated chenille yarn based on skein dyeing process according to claim 6, characterized in that: Based on the pattern of the target segment dyed skein yarn, perform the following operations to construct the corresponding pattern of the target segment colored chenille yarn; Firstly, based on the spinning process of segmented chenille yarn, segmented yarn is used as decorative yarn and wound on the spacer plate. After being cut by the blade, it is output to both sides. According to the width of the spacer plate being H and the thickness of the spacer plate being T, the length of each decorative yarn in the corresponding target segmented chenille yarn is obtained as d = 2 × (H + T). Then, based on the color C(i) and length h(i) of each color segment in the single pattern cycle corresponding to the target section dyed skein pattern, and the number n1 of color segments in the single pattern cycle of the target section dyed skein pattern (1≤i≤n1), the following formula is executed according to n3=2n1-2, 1≤k≤n3: Obtain the colors of each color segment in the corresponding single-pattern cycle of the target segment colored chenille yarn. With length And the number of color segments n3 in the corresponding target segment colored chenille yarn single pattern cycle.
8. The application of the method for pattern conversion of variegated chenille yarn based on skein dyeing process according to claim 6, characterized in that: It also includes performing steps D1 to D3 according to the pattern of the target segment colored chenille yarn to construct the pattern of the corresponding target segment dyed skein yarn; Step D1. Based on the process of spinning segmented chenille yarn, segmented yarn is used as decorative yarn and wound on the spacer plate. After being cut by the blade, it is output to both sides. According to the width of the spacer plate is H and the thickness of the spacer plate is T, the length of each decorative yarn in the target segmented chenille yarn is obtained as d = 2 × (H + T). Then proceed to step D2. Step D2. Based on the colors of each color segment in the single pattern cycle corresponding to the target segment of the colored chenille yarn pattern. With length And the number of color segments n3 in the single pattern cycle of the target segment colored chenille yarn, 1≤k≤n3, are calculated according to n2=n3, 1≤j≤n2, using the following formula: Obtain the colors of each color segment in the corresponding single pattern cycle of the target segment colored yarn. With length And the number of color segments n2 in the corresponding target segment color yarn single pattern cycle, and then proceed to step D3; Step D3. Based on the colors of each color segment in the corresponding single pattern cycle of the target segment colored yarn package. With length And the number of color segments n2 in the corresponding target segment color yarn single pattern cycle, according to n1=n2 / 2+1, 1≤i≤n1, execute the following formula: Obtain the color C(i) and length h(i) of each color segment in the corresponding single pattern cycle of the target segment dyed yarn, as well as the number n1 of color segments in the corresponding single pattern cycle of the target segment dyed yarn.
9. The application of the method for pattern conversion of variegated chenille yarn based on skein dyeing process according to claim 8, characterized in that: Based on the pattern of the target segmented colored chenille yarn, perform the following operations to construct the corresponding pattern of the target segmented dyed skein yarn; First, based on the process of spinning segmented colored chenille yarn, segmented colored cone yarn is wound as decorative yarn on the spacer plate and cut by the blade and output to both sides. According to the width of the spacer plate is H and the thickness of the spacer plate is T, the length d of each decorative yarn in the target segmented colored chenille yarn is obtained as 2×(H+T). Then, based on the colors of each color segment in the single pattern cycle corresponding to the target segment of colored chenille yarn pattern... With length And the number of color segments n3 in the single pattern cycle of the target segment colored chenille yarn, 1≤k≤n3, are calculated according to n1=n3 / 2+1, 1≤i≤n1, using the following formula: Obtain the color C(i) and length h(i) of each color segment in the corresponding single pattern cycle of the target segment dyed yarn, as well as the number n1 of color segments in the corresponding single pattern cycle of the target segment dyed yarn.