CN110485018B - Method for spinning gradient yarns by four-primary-color fiber coupling blending based on discrete gradient chromatography - Google Patents
Method for spinning gradient yarns by four-primary-color fiber coupling blending based on discrete gradient chromatography Download PDFInfo
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G13/00—Mixing, e.g. blending, fibres; Mixing non-fibrous materials with fibres
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
- D02G3/346—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns with coloured effects, i.e. by differential dyeing process
Abstract
The invention relates to a method for spinning gradient yarns by four-primary-color fiber coupling blending based on discrete gradient chromatography, which comprises the steps of taking the mass of four-primary-color fibers as a carrier, constructing an increasing and decreasing mass sequence, combining and pairing the mass sequence as a four-primary-color fiber mass coupling blending and gradient blending model, constructing the discrete gradient chromatography of the four-primary-color fibers and a drafting ratio discrete algorithm of the spun color discrete gradient color yarns according to the model, and obtaining the discrete gradient effect of the four primary colors on the basis of the coupling blending to realize the yarn color, wherein the discrete gradient effect is used for spinning the yarns with the color serialization characteristic of the color discrete gradient or spinning the gradient color yarns with the natural gradient effect on one yarn. Therefore, based on the coupling mass ratio among the four primary color fibers, the secondary color matching among the multi-element primary color fibers can be efficiently realized, the discrete gradually-changed serialized colors and the discrete gradually-changed colors in the full color domain space are obtained, and the color yarns with the discrete gradually-changed colors corresponding to the four color fibers are accurately obtained.
Description
Technical Field
The invention relates to a method for spinning gradient yarns by four-primary-color fiber coupling blending based on discrete gradient chromatography, belonging to the technical field of digital color-mixing spinning and color spinning.
Background
The colors of the textile and the clothing product are influenced by the fashion trend, and the textile and clothing product has the characteristics of short period, quick change, remarkable fashion effect and the like. Textile enterprises must have the ability to rapidly modulate and spin fibers, yarns, fabrics and garments of a range of colors with discrete and gradual changes in hue, lightness and saturation, to produce quickly and respond quickly to meet the rapid and varied market demands.
In general, a color spinning enterprise mixes at least two different colors of fibers in the processes of cotton blending, cotton splicing, cotton picking, cotton opening and picking, drawing, roving, spinning and the like to obtain a series of discrete and gradually changed colors such as hue, lightness, saturation and the like, or to realize discrete and gradually changed colors such as hue, lightness, saturation and the like on yarns, fabrics and clothing products.
Theoretically, according to the theory of colorimetry, the gradual change of hue, lightness and saturation is transited from one color to another color through the gradual change of the hue, the lightness and the saturation, and the gradual change is realized through the coupling gradual change of the RGB values of the multiple primary colors, so a model and an algorithm for realizing the color gradual change based on the coupling gradual change of the RGB values of the multiple primary colors need to be established; according to the textile processing theory, the colored spun yarn realizes the gradual change of the colored spun yarn from one color to another color by coupling and gradually changing the weight mixing ratio of the multi-primary-color fibers with different hues, lightness and saturation, so a model and an algorithm for realizing the color gradual change of the colored spun yarn and the textile need to be established; according to a digital spinning processing theory, by regulating and controlling the mixing ratio of the multi-primary-color fibers, the gradual change of the multichannel digital spinning draft ratio and the weight mixing ratio of the multi-primary-color fibers are required to be coupled and gradually changed to correspond, so that the colored spun yarn is gradually changed from one color to another color, and therefore a model and an algorithm for the coupled gradual change of the multichannel coupled draft gradual change and the weight mixing ratio of the multi-primary-color fibers are required to be established.
How is the color gradient achieved by coupled gradient of multi-primary RGB values? And how can the gradation of the spun-dyed color be achieved by coupled gradation of the mix-weight ratio of the fibers of the primary colors? How is the coupled gradation of the multi-primary color fiber mixture ratio achieved by the euro-sum gradation of the multi-channel asynchronous draft, and further the coupled gradation of the spun-dyed yarn colors achieved? Further, how to design the coupling gradual change of the RGB values of the multi-primary colors, the coupling gradual change of the fiber mixing ratio of the multi-primary colors and the coupling gradual change of the draft ratio in a correlation manner still lacks an effective theory and method at present.
The method is characterized in that the traditional color matching method is adopted, and fiber raw materials with different colors are mixed in the processes of cotton blending, pattern matching, package arrangement, cotton opening and cleaning, drawing, roving, spun yarn and the like of pre-spinning, so that on one hand, the traditional color matching method cannot accurately control the mixing ratio of fibers with different colors and cannot realize the mixing of the fibers with different colors in any proportion; on the other hand, the traditional color matching method can only change the mixing ratio Off-line (Off-line) and can not change the mixing ratio of different color fibers On-line (On-line). Therefore, the gradual change of the color cannot be realized by the blending of the two-color fibers by the traditional method.
According to the method provided by the invention patent "CN 201510142129.0 method and device for realizing color mixing spinning based on CMYK four-primary-color roving coupling drafting", although the online change of the mixing ratio can be regulated and controlled, how can the change of the four-channel drafting ratio be regulated and controlled to realize the coupling gradual change of the weight mixing ratio of multi-primary-color fibers? And how can coupled gradations of the spun-dyed RGB values be achieved by coupled gradations of the multi-primary-color fiber mix-by-weight? How is the gradation of the spun-dyed yarn color further achieved by coupled gradation of the spun-dyed yarn RGB values? No solution is given.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for spinning gradient yarns by coupling and blending four-primary-color fibers based on a discrete gradient chromatogram, which realizes the discrete gradient of colors by coupling and blending the four-primary-color fibers to obtain the four-primary-color discrete gradient chromatogram, thereby solving the discrete change rule of a mixing ratio, then solving the discrete change rule of a draft ratio based on the discrete change rule of the draft ratio, and further accurately realizing the obtaining of the color yarns with the discrete gradient of various colors corresponding to the four-primary-color fibers.
The invention adopts the following technical scheme for solving the technical problems: the invention designs a method for spinning gradient yarns by coupling and blending four-primary-color fibers based on discrete gradient chromatography, which is used for obtaining coupling fibers corresponding to the four-color fibers under different coupling mass ratio combinations and coupling fiber chromatography among the four-color fibers, and comprises the following steps:
step A, aiming at the coupling mass ratio of the first color fiber α, sequentially reducing the coupling mass ratio from 100% to 0% in an equal proportion according to a preset descending number n, obtaining the coupling mass ratio of α color fibers under each descending number, and obtaining the coupling mass ratio general formula of α color fibers corresponding to the descending number as follows:
mα*(n-i+1)/n
aiming at the coupling mass ratio of the second color fiber β, sequentially increasing the coupling mass ratio from 0% to 100% in equal proportion according to the preset increasing times n, obtaining the coupling mass ratio corresponding to β color fibers under each increasing time number, and obtaining the coupling mass ratio general formula of β color fibers corresponding to decreasing time numbers as follows:
mβ*(i-1)/n
aiming at the coupling mass ratio of the gamma fibers of the third color, sequentially increasing the coupling mass ratio from 0% to 100% in equal proportion according to the preset increasing times n, obtaining the coupling mass ratio corresponding to the gamma fibers under each increasing time number, and obtaining the coupling mass ratio general formula of the gamma fibers corresponding to the decreasing time numbers as follows:
mγ*(i-1)/n
aiming at the coupling mass ratio of the fourth color fiber delta, sequentially increasing the coupling mass ratio from 0% to 100% in equal proportion according to a preset increasing number n, obtaining the coupling mass ratio corresponding to the delta color fiber under each increasing number, and obtaining the coupling mass ratio general formula of the delta color fiber corresponding to the decreasing number as follows:
mδ*(i-1)/n
wherein the preset decreasing times is equal to the preset increasing times, i is 1, 2, …, n +1, mαDenotes the mass of α color fibers, mβDenotes the mass of β color fibers, mγDenotes the mass of the gamma-colored fibers, mδRepresenting the quality of the delta color fiber, and then entering the step B;
step B, respectively obtaining combinations of the fibers α, β, gamma and delta in four colors under different coupling order number combinations according to corresponding coupling mass ratios, namely coupling types of the coupling fibers under the coupling order number combinations, and further obtaining the coupling mass general formula of the coupling order number combinations i, j and k corresponding to the coupling fibers as follows:
then entering step C; wherein, Ti,j,kThe coupling quality general formula of the coupling fiber corresponding to the coupling sequence number combination i, j, k is 1, 2, …, n +1, k is 1, 2, …, n +1, and (i + j) is less than or equal to (n +2), (i + k) is less than or equal to (n +2), and (j + k) is less than or equal to (n + 2);
and C, obtaining a coupling mass mixing ratio general formula of the coupling sequence number combinations i, j, k respectively corresponding to the four color fibers according to the coupling mass general formula of the coupling sequence number combinations i, j, k corresponding to the coupling fibers as follows:
then entering step D; wherein: kαi,j,kRepresenting a coupling mass mixing ratio general formula, K, of a combination i, j, K of coupling order numbers corresponding to α color fibersβi,j,kRepresenting a coupling mass mixing ratio general formula, K, of a combination i, j, K of coupling order numbers corresponding to β color fibersγi,j,kRepresenting the coupling quality mixing ratio general formula of the coupling order number combination i, j, K corresponding to the gamma color fiber, Kδi,j,kRepresenting a coupling mass mixing ratio general formula of a coupling sequence number combination i, j, k corresponding to the delta color fiber;
and D, according to the coupling mass mixing ratio general formula of the four color fibers corresponding to the coupling sequence number combinations i, j and k respectively, acquiring the RGB general formula of the coupling fiber corresponding to the coupling sequence number combinations aiming at the RGB colors of the four color fibers, and further acquiring the colors of the coupling fiber corresponding to different coupling sequence number combinations respectively, namely acquiring the colors of the coupling fiber corresponding to different coupling mass ratio combinations among the various color fibers respectively, and forming the coupling fiber chromatographic general formula of the four color fibers based on different coupling mass ratio combinations as follows:
RTi,j,k＝Kαi,j,k*Rα+Kβi,j,k*Rβ+Kγi,j,k*Rγ+Kδi,j,k*Rδ
GTi,j,k＝Kαi,j,k*Gα+Kβi,j,k*Gβ+Kγi,j,k*Gγ+Kδi,j,k*Gδ
BTi,j,k＝Kαi,j,k*Bα+Kβi,j,k*Bβ+Kγi,j,k*Bγ+Kδi,j,k*Bδ
then obtaining a four-primary-color fiber discretization gradual-change chromatogram, and then entering the step E; wherein R isTi,j,k、GTi,j,k、BTi,j,kFor coupling the chromatograms of the fibre subsamples, Rα、Gα、BαIs the color tristimulus value, R, of the colored fiber αβ、Gβ、BβIs the color tristimulus value, R, of the colored fiber βγ、Gγ、BγIs the color tristimulus value, R, of the colored fiber gammaδ、Gδ、BδIs the color tristimulus value of the colored fiber delta;
step E, obtaining the densities rho of the color fiber rovings corresponding to the four color fibers α, β, gamma and delta respectively according to the procedures of cotton matching, pattern matching, bale arrangement, cotton opening and cleaning, drawing and roving in the pre-spinning processα、ρβ、ργ、ρδThen entering step F;
step F, according to the coupling mass mixing ratio general formula of the coupling sequence number combinations i, j and k respectively corresponding to the four color fibers, combining the linear densities rho of the color fiber rovings respectively corresponding to the four color fibersα、ρβ、ργ、ρδAccording to the following formula:
Eαi,j,k＝Kαi,j,k*ρyi,j,k/ρα
Eβi,j,k＝Kβi,j,k*ρyi,j,k/ρβ
Eγi,j,k＝Kγi,j,k*ρyi,j,k/ργ
Eδi,j,k＝Kδi,j,k*ρyi,j,k/ρδ
obtaining the draft ratios E of the channels corresponding to the four kinds of color fiber rough yarns respectivelyαi,j,k、Eβi,j,k、Eγi,j,k、Eδi,j,kBased on the draft ratio Eαi,j,k、Eβi,j,k、Eγi,j,k、Eδi,j,kAfter asynchronous drafting and converging twisting are carried out on the four kinds of colored fiber rough yarns, the yarns coupled with the chromatograph corresponding to the coupled fiber chromatograph are obtained, wherein rhoyi,j,kShows the preset linear density of the yarn obtained after asynchronous drafting, converging and twisting are carried out on the four color fibers α, β, gamma and delta corresponding to the coupling order number combination i, j and k.
As a preferred technical scheme of the invention: step G is also included, after step F is executed, step G is entered;
g, according to the draft ratios E of the channels corresponding to the four kinds of color fiber rovings respectivelyαi,j,k、Eβi,j,k、Eγi,j,k、Eδi,j,kAnd the linear densities rho corresponding to the four kinds of color fiber roving respectivelyα、ρβ、ργ、ρδAccording to the following formula:
ρ'yi,j,k＝ρα/Eαi,j,k+ρβ/Eβi,j,k+ργ/Eγi,j,k+ρδ/Eδi,j,k
obtaining the actual linear density rho 'of the yarn obtained by carrying out asynchronous drafting and converging twisting on the four color fiber rovings corresponding to the combination of coupling order numbers i, j, k'yi,j,k。
As a preferred technical scheme of the invention: the step G further comprises the following steps:
four rough yarns prepared by four primary color fibers are subjected to asynchronous drafting to realize coupling blending, then are converged and twisted to form four primary color mixed color yarns, and the four primary color mixed color yarns are combined according to the coupling quality general formula of the coupling fiber corresponding to the coupling sequence number combination i, j and k according to the following formula:
Kyαi,j,k＝(ρα/Eαi,j,k)/(ρα/Eαi,j,k+ρβ/Eβi,j,k+ργ/Eγi,j,k+ρδ/Eδi,j,k)
Kyβi,j,k＝(ρβ/Eβi,j,k)/(ρα/Eαi,j,k+ρβ/Eβi,j,k+ργ/Eγi,j,k+ρδ/Eδi,j,k)
Kyγi,j,k＝(ργ/Eγi,j,k)/(ρα/Eαi,j,k+ρβ/Eβi,j,k+ργ/Eγi,j,k+ρδ/Eδi,j,k)
Kyδi,j,k＝(ρδ/Eδi,j,k)/(ρα/Eαi,j,k+ρβ/Eβi,j,k+ργ/Eγi,j,k+ρδ/Eδi,j,k)
obtaining a mixing ratio general formula K of four color fibers in the yarn, wherein the four color fibers respectively correspond to the coupling sequence number combinations i, j and Kyαi,j,k、Kyβi,j,k、Kyγi,j,k、Kyδi,j,k(ii) a Wherein, Kyαi,j,kRepresenting the mixing ratio general formula, K, of the α color fibers in the yarn corresponding to the coupling order number combination i, j, Kyβi,j,kA mixing ratio formula, K, representing the combination of coupling order numbers i, j, K corresponding to β color fibersyγi,j,kA mixing ratio general formula, K, of a combination i, j, K representing the corresponding coupling order number of the gamma-colored fiberyδi,j,kAnd the mixing ratio general formula of the coupling sequence number combination i, j and k corresponding to the delta color fibers is shown.
As a preferred technical scheme of the invention: step H is also included, after step G is executed, step H is entered;
and H, according to the mixing ratio general formula of the coupling sequence number combinations i, j and k respectively corresponding to the four color fibers, aiming at the RGB colors of the four color fibers, obtaining the RGB general formula of the coupling sequence number combinations i, j and k corresponding to the coupling fibers as follows:
Ryi,j,k＝Kyαi,j,k*Ryα+Kyβi,j,k*Ryβ+Kyγi,j,k*Ryγ+Kδγi,j,k*Ryδ
Gyi,j,k＝Kyαi,j,k*Gyα+Kyβi,j,k*Gyβ+Kyγi,j,k*Gyγ+Kyδi,j,k*Gyδ
Byi,j,k＝Kyαi,j,k*Byα+Kyβi,j,k*Byβ+Kyγi,j,k*Byγ+Kyδi,j,k*Byδ
wherein R isyi,j,k、Gyi,j,k、Byi,j,kThe general formula of RGB is expressed as the combination of coupling sequence numbers i, j, k corresponding to the coupling fibers; ryα、Gyα、ByαIndicates a linear density of ρ 'spun from α color fibers'yi,j,kThe color tristimulus value of the yarn of (a); ryβ、Gyβ、ByβIndicates a linear density of ρ 'spun from β color fibers'yi,j,kOf the yarn of (2) has a color tristimulus value, Ryγ、Gyγ、ByγRepresents a linear density of ρ'yi,j,kOf the yarn of (2) has a color tristimulus value, Ryδ、Gyδ、ByδRepresents a linear density of ρ'yi,j,kThe color tristimulus value of the yarn.
Compared with the prior art, the method for spinning the gradient yarns by coupling, mixing and blending the four-primary-color fibers based on the discrete gradient chromatogram has the following technical effects:
the invention relates to a method for spinning gradient yarns by coupling, blending and matching four-primary-color fibers based on a discrete gradient chromatogram, which is characterized in that the mass of the four-primary-color fibers is taken as a carrier, an increasing and decreasing mass sequence is constructed, the mass sequence is combined and matched to be taken as a four-primary-color fiber mass coupling, blending and gradient blending model, the discrete gradient chromatogram of the four-primary-color fibers and a drafting ratio discrete algorithm of the spun color discrete gradient color yarns are constructed according to the model, and the discrete gradient effect of the four primary colors on the basis of the coupling, blending and realizing the yarn color is obtained, so that the method is used for spinning the yarns with the color serialization characteristic of the discrete gradient color or spinning the gradient color yarns with the natural gradient color effect on one yarn. Therefore, based on the coupling mass ratio among the four primary color fibers, the secondary color matching among the multi-element primary color fibers can be efficiently realized, the discrete gradually-changed serialized colors and the discrete gradually-changed colors in the full color domain space are obtained, and the color yarns with the discrete gradually-changed colors corresponding to the four color fibers are accurately obtained.
Drawings
FIG. 1 is a schematic flow chart of the design of the invention for the construction of the discrete gradient chromatogram and the spinning of the gradient color yarn by four primary color fiber coupling and blending.
Detailed Description
The following description will explain embodiments of the present invention in further detail with reference to the accompanying drawings.
The invention designs a method for spinning gradient yarns by coupling and blending four-primary-color fibers based on a discrete gradient chromatogram, which is used for obtaining coupling fibers corresponding to the coupling fiber chromatograms among the four-color fibers under different coupling mass ratio combinations aiming at the four-color fibers, and specifically comprises the following steps as shown in figure 1.
Step A, aiming at the coupling mass ratio of the first color fiber α, sequentially reducing the coupling mass ratio from 100% to 0% in an equal proportion according to a preset descending number n, obtaining the coupling mass ratio of α color fibers under each descending number, and obtaining the coupling mass ratio general formula of α color fibers corresponding to the descending number as follows:
mα*(n-i+1)/n
aiming at the coupling mass ratio of the second color fiber β, sequentially increasing the coupling mass ratio from 0% to 100% in equal proportion according to the preset increasing times n, obtaining the coupling mass ratio corresponding to β color fibers under each increasing time number, and obtaining the coupling mass ratio general formula of β color fibers corresponding to decreasing time numbers as follows:
mβ*(i-1)/n
aiming at the coupling mass ratio of the gamma fibers of the third color, sequentially increasing the coupling mass ratio from 0% to 100% in equal proportion according to the preset increasing times n, obtaining the coupling mass ratio corresponding to the gamma fibers under each increasing time number, and obtaining the coupling mass ratio general formula of the gamma fibers corresponding to the decreasing time numbers as follows:
mγ*(i-1)/n
aiming at the coupling mass ratio of the fourth color fiber delta, sequentially increasing the coupling mass ratio from 0% to 100% in equal proportion according to a preset increasing number n, obtaining the coupling mass ratio corresponding to the delta color fiber under each increasing number, and obtaining the coupling mass ratio general formula of the delta color fiber corresponding to the decreasing number as follows:
mδ*(i-1)/n
wherein the preset decreasing times is equal to the preset increasing times, i is 1, 2, …, n +1, mαDenotes the mass of α color fibers, mβDenotes the mass of β color fibers, mγDenotes the mass of the gamma-colored fibers, mδRepresenting the quality of the delta colored fiber and then proceed to step B.
Step B, respectively obtaining combinations of the fibers α, β, gamma and delta in four colors under different coupling order number combinations according to corresponding coupling mass ratios, namely coupling types of the coupling fibers under the coupling order number combinations, and further obtaining the coupling mass general formula of the coupling order number combinations i, j and k corresponding to the coupling fibers as follows:
then entering step C; wherein, Ti,j,kThe coupling quality general formula of the coupling fiber corresponding to the coupling sequence number combination i, j, k is 1, 2, …, n +1, k is 1, 2, …, n +1, and (i + j) is less than or equal to (n +2), (i + k) is less than or equal to (n +2), and (j + k) is less than or equal to (n + 2).
In practical applications, the coupling of the coupling fibers corresponding to the combination of the coupling numbers is shown in table 1 below.
TABLE 1
And C, obtaining a coupling mass mixing ratio general formula of the coupling sequence number combinations i, j, k respectively corresponding to the four color fibers according to the coupling mass general formula of the coupling sequence number combinations i, j, k corresponding to the coupling fibers as follows:
then entering step D; wherein: kαi,j,kRepresenting a coupling mass mixing ratio general formula, K, of a combination i, j, K of coupling order numbers corresponding to α color fibersβi,j,kRepresenting a coupling mass mixing ratio general formula, K, of a combination i, j, K of coupling order numbers corresponding to β color fibersγi,j,kRepresenting the coupling quality mixing ratio general formula of the coupling order number combination i, j, K corresponding to the gamma color fiber, Kδi,j,kThe general formula of the coupling mass mixing ratio of the combination i, j, k of the coupling order numbers corresponding to the delta color fibers is shown in tables 2-1 to 2-2.
TABLE 2-1
Tables 2 to 2
And D, according to the coupling mass mixing ratio general formula of the four color fibers corresponding to the coupling sequence number combinations i, j and k respectively, acquiring the RGB general formula of the coupling fiber corresponding to the coupling sequence number combinations aiming at the RGB colors of the four color fibers, and further acquiring the colors of the coupling fiber corresponding to different coupling sequence number combinations respectively, namely acquiring the colors of the coupling fiber corresponding to different coupling mass ratio combinations among the various color fibers respectively, and forming the coupling fiber chromatographic general formula of the four color fibers based on different coupling mass ratio combinations as follows:
RTi,j,k＝Kαi,j,k*Rα+Kβi,j,k*Rβ+Kγi,j,k*Rγ+Kδi,j,k*Rδ
GTi,j,k＝Kαi,j,k*Gα+Kβi,j,k*Gβ+Kγi,j,k*Gγ+Kδi,j,k*Gδ
BTi,j,k＝Kαi,j,k*Bα+Kβi,j,k*Bβ+Kγi,j,k*Bγ+Kδi,j,k*Bδ
further obtaining a four-primary-color fiber discretization gradual-change chromatogram shown in the following table 3, and then entering the step E; wherein R isTi,j,k、GTi,j,k、BTi,j,kFor coupling the chromatograms of the fibre subsamples, Rα、Gα、BαIs the color tristimulus value, R, of the colored fiber αβ、Gβ、BβIs the color tristimulus value, R, of the colored fiber βγ、Gγ、BγIs the color tristimulus value, R, of the colored fiber gammaδ、Gδ、BδThe color tristimulus value of the colored fiber delta.
TABLE 3
Step E, obtaining the densities rho of the color fiber rovings corresponding to the four color fibers α, β, gamma and delta respectively according to the procedures of cotton matching, pattern matching, bale arrangement, cotton opening and cleaning, drawing and roving in the pre-spinning processα、ρβ、ργ、ρδThen, step F is entered.
F, respectively corresponding coupling quality mixture of coupling order number combinations i, j and k according to the four color fibersThe general formula of the composition is combined with the linear density rho of the color fiber roving corresponding to the four color fibers respectivelyα、ρβ、ργ、ρδAccording to the following formula:
Eαi,j,k＝Kαi,j,k*ρyi,j,k/ρα
Eβi,j,k＝Kβi,j,k*ρyi,j,k/ρβ
Eγi,j,k＝Kγi,j,k*ρyi,j,k/ργ
Eδi,j,k＝Kδi,j,k*ρyi,j,k/ρδ
obtaining the draft ratios E of the channels corresponding to the four kinds of color fiber rough yarns respectivelyαi,j,k、Eβi,j,k、Eγi,j,k、Eδi,j,kShown in tables 4-1 to 4-2 below.
TABLE 4-1
TABLE 4-2
The blend ratio of the four primary color fibers in the yarn is as shown in tables 5-1 to 5-2 below.
TABLE 5-1
TABLE 5-2
Based on the draft ratio Eαi,j,k、Eβi,j,k、Eγi,j,k、Eδi,j,kAfter asynchronous drafting and converging twisting are carried out on the four kinds of colored fiber roving, the chromatographic coupling corresponding to the coupled fiber chromatography is obtainedThen step G; where ρ isyi,j,kShows the preset linear density of the yarn obtained after asynchronous drafting, converging and twisting are carried out on the four color fibers α, β, gamma and delta corresponding to the coupling order number combination i, j and k.
G, according to the draft ratios E of the channels corresponding to the four kinds of color fiber rovings respectivelyαi,j,k、Eβi,j,k、Eγi,j,k、Eδi,j,kAnd the linear densities rho corresponding to the four kinds of color fiber roving respectivelyα、ρβ、ργ、ρδAccording to the following formula:
ρ'yi,j,k＝ρα/Eαi,j,k+ρβ/Eβi,j,k+ργ/Eγi,j,k+ρδ/Eδi,j,k
obtaining the actual linear density rho 'of the yarn obtained by carrying out asynchronous drafting and converging twisting on the four color fiber rovings corresponding to the combination of coupling order numbers i, j, k'yi,j,k。
Then, four rough yarns obtained by preparing the four-primary-color fibers are subjected to asynchronous drafting to realize coupling blending, then are converged and twisted to form four-primary-color mixed-color yarns, and the four-primary-color mixed-color yarns are combined according to the coupling quality general formula of the coupling fiber corresponding to the coupling sequence number i, j, k according to the following formula:
Kyαi,j,k＝(ρα/Eαi,j,k)/(ρα/Eαi,j,k+ρβ/Eβi,j,k+ργ/Eγi,j,k+ρδ/Eδi,j,k)
Kyβi,j,k＝(ρβ/Eβi,j,k)/(ρα/Eαi,j,k+ρβ/Eβi,j,k+ργ/Eγi,j,k+ρδ/Eδi,j,k)
Kyγi,j,k＝(ργ/Eγi,j,k)/(ρα/Eαi,j,k+ρβ/Eβi,j,k+ργ/Eγi,j,k+ρδ/Eδi,j,k)
Kyδi,j,k＝(ρδ/Eδi,j,k)/(ρα/Eαi,j,k+ρβ/Eβi,j,k+ργ/Eγi,j,k+ρδ/Eδi,j,k)
obtaining a mixing ratio general formula K of four color fibers in the yarn, wherein the four color fibers respectively correspond to the coupling sequence number combinations i, j and Kyαi,j,k、Kyβi,j,k、Kyγi,j,k、Kyδi,j,k(ii) a Wherein, Kyαi,j,kRepresenting the mixing ratio general formula, K, of the α color fibers in the yarn corresponding to the coupling order number combination i, j, Kyβi,j,kA mixing ratio formula, K, representing the combination of coupling order numbers i, j, K corresponding to β color fibersyγi,j,kA mixing ratio general formula, K, of a combination i, j, K representing the corresponding coupling order number of the gamma-colored fiberyδi,j,kAnd the mixing ratio general formula of the coupling sequence number combination i, j and k corresponding to the delta color fibers is shown.
And H, according to the mixing ratio general formula of the coupling sequence number combinations i, j and k respectively corresponding to the four color fibers, aiming at the RGB colors of the four color fibers, obtaining the RGB general formula of the coupling sequence number combinations i, j and k corresponding to the coupling fibers as follows:
Ryi,j,k＝Kyαi,j,k*Ryα+Kyβi,j,k*Ryβ+Kyγi,j,k*Ryγ+Kδγi,j,k*Ryδ
Gyi,j,k＝Kyαi,j,k*Gyα+Kyβi,j,k*Gyβ+Kyγi,j,k*Gyγ+Kyδi,j,k*Gyδ
Byi,j,k＝Kyαi,j,k*Byα+Kyβi,j,k*Byβ+Kyγi,j,k*Byγ+Kyδi,j,k*Byδ
wherein R isyi,j,k、Gyi,j,k、Byi,j,kThe general formula of RGB is expressed as the combination of coupling sequence numbers i, j, k corresponding to the coupling fibers; ryα、Gyα、ByαIndicates a linear density of ρ 'spun from α color fibers'yi,j,kThe color tristimulus value of the yarn of (a); ryβ、Gyβ、ByβIndicates a linear density of ρ 'spun from β color fibers'yi,j,kColor tristimulus of the yarnValue Ryγ、Gyγ、ByγRepresents a linear density of ρ'yi,j,kOf the yarn of (2) has a color tristimulus value, Ryδ、Gyδ、ByδRepresents a linear density of ρ'yi,j,kThe color tristimulus values of the yarns of (a) are shown in table 6 below.
TABLE 6
In the embodiment 1, if n is 10, the four-primary-color fiber discrete gradient chromatogram with a gradient of 10% is obtained, as shown in table 7 below.
TABLE 7
Based on the table 2, the draft ratios E of the channels corresponding to the four color fibers are respectivelyαi,j,k、Eβi,j,k、Eγi,j,k、Eδi,j,kAs shown in table 8 below.
TABLE 8
With coloured rovings pmαThe yarn spun from the starting material had a measured color value of m α (R)ymα、Gymα、Bymα) From a colour roving rhoβThe yarn spun from the raw material has a color value of (R)y、Gy、By) From a colour roving rhoγThe yarn spun from the raw material has a color value of (R)y、Gy、By) From a colour roving rhoδThe yarn spun from the starting material had a measured color value of m α (R)yδ、Gyδ、Byδ) Then, the color value of each section of the digital spinning yarn with 10% as gradient is calculated by the following formula. The values obtained are given in table 9, which gives a calculation of the gradient of 10% for the gradient yarn.
Ryi,j,k＝Kyαi,j,k*Ryα+Kyβi,j,k*Ryβ+Kyγi,j,k*Ryγ+Kδγi,j,k*Ryδ
Gyi,j,k＝Kyαi,j,k*Gyα+Kyβi,j,k*Gyβ+Kyγi,j,k*Gyγ+Kyδi,j,k*Gyδ
Byi,j,k＝Kyαi,j,k*Byα+Kyβi,j,k*Byβ+Kyγi,j,k*Byγ+Kyδi,j,k*Byδ
TABLE 9
The method for spinning the gradient yarn by four-primary-color fiber coupling blending based on the discrete gradient chromatogram comprises the steps of constructing an increasing and decreasing mass sequence by taking the mass of the four-primary-color fiber as a carrier, combining and pairing the mass sequence to serve as a four-primary-color fiber mass coupling blending and gradient blending model, constructing the discrete gradient chromatogram of the four-primary-color fiber and a drafting ratio discrete algorithm of the spun color discrete gradient color yarn according to the model, and obtaining the discrete gradient effect of the four primary colors on the basis of the coupling blending to realize the yarn color, wherein the discrete gradient effect is used for spinning the yarn with the color serialization characteristic of the color discrete gradient, or spinning the gradient color yarn with the natural gradient effect on one yarn. Therefore, based on the coupling mass ratio among the four primary color fibers, the secondary color matching among the multi-element primary color fibers can be efficiently realized, the discrete gradually-changed serialized colors and the discrete gradually-changed colors in the full color domain space are obtained, and the color yarns with the discrete gradually-changed colors corresponding to the four color fibers are accurately obtained.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (4)
1. A method for spinning gradient yarns by four-primary-color fiber coupling blending based on discrete gradient chromatography is used for obtaining coupling fibers corresponding to coupling fiber chromatography under different coupling mass ratio combinations among fibers with four colors, and is characterized by comprising the following steps:
step A, aiming at the coupling mass ratio of the first color fiber α, sequentially reducing the coupling mass ratio from 100% to 0% in an equal proportion according to a preset descending number n, obtaining the coupling mass ratio of α color fibers under each descending number, and obtaining the coupling mass ratio general formula of α color fibers corresponding to the descending number as follows:
mα*(n-i+1)/n
aiming at the coupling mass ratio of the second color fiber β, sequentially increasing the coupling mass ratio from 0% to 100% in equal proportion according to the preset increasing times n, obtaining the coupling mass ratio corresponding to β color fibers under each increasing time number, and obtaining the coupling mass ratio general formula of β color fibers corresponding to decreasing time numbers as follows:
mβ*(i-1)/n
aiming at the coupling mass ratio of the gamma fibers of the third color, sequentially increasing the coupling mass ratio from 0% to 100% in equal proportion according to the preset increasing times n, obtaining the coupling mass ratio corresponding to the gamma fibers under each increasing time number, and obtaining the coupling mass ratio general formula of the gamma fibers corresponding to the decreasing time numbers as follows:
mγ*(i-1)/n
aiming at the coupling mass ratio of the fourth color fiber delta, sequentially increasing the coupling mass ratio from 0% to 100% in equal proportion according to a preset increasing number n, obtaining the coupling mass ratio corresponding to the delta color fiber under each increasing number, and obtaining the coupling mass ratio general formula of the delta color fiber corresponding to the decreasing number as follows:
mδ*(i-1)/n
wherein the preset decreasing times is equal to the preset increasing times, i is 1, 2, …, n +1, mαDenotes the mass of α color fibers, mβDenotes the mass of β color fibers, mγDenotes the mass of the gamma-colored fibers, mδRepresenting the quality of the delta color fiber, and then entering the step B;
step B, respectively obtaining combinations of the fibers α, β, gamma and delta in four colors under different coupling order number combinations according to corresponding coupling mass ratios, namely coupling types of the coupling fibers under the coupling order number combinations, and further obtaining the coupling mass general formula of the coupling order number combinations i, j and k corresponding to the coupling fibers as follows:
then entering step C; wherein, Ti,j,kThe coupling quality general formula of the coupling fiber corresponding to the coupling sequence number combination i, j, k is 1, 2, …, n +1, k is 1, 2, …, n +1, and (i + j) is less than or equal to (n +2), (i + k) is less than or equal to (n +2), and (j + k) is less than or equal to (n + 2);
and C, obtaining a coupling mass mixing ratio general formula of the coupling sequence number combinations i, j, k respectively corresponding to the four color fibers according to the coupling mass general formula of the coupling sequence number combinations i, j, k corresponding to the coupling fibers as follows:
then entering step D; wherein: kαi,j,kRepresenting a coupling mass mixing ratio general formula, K, of a combination i, j, K of coupling order numbers corresponding to α color fibersβi,j,kRepresenting a coupling mass mixing ratio general formula, K, of a combination i, j, K of coupling order numbers corresponding to β color fibersγi,j,kRepresenting the coupling quality mixing ratio general formula of the coupling order number combination i, j, K corresponding to the gamma color fiber, Kδi,j,kRepresenting a coupling mass mixing ratio general formula of a coupling sequence number combination i, j, k corresponding to the delta color fiber;
and D, according to the coupling mass mixing ratio general formula of the four color fibers corresponding to the coupling sequence number combinations i, j and k respectively, acquiring the RGB general formula of the coupling fiber corresponding to the coupling sequence number combinations aiming at the RGB colors of the four color fibers, and further acquiring the colors of the coupling fiber corresponding to different coupling sequence number combinations respectively, namely acquiring the colors of the coupling fiber corresponding to different coupling mass ratio combinations among the various color fibers respectively, and forming the coupling fiber chromatographic general formula of the four color fibers based on different coupling mass ratio combinations as follows:
RTi,j,k＝Kαi,j,k*Rα+Kβi,j,k*Rβ+Kγi,j,k*Rγ+Kδi,j,k*Rδ
GTi,j,k＝Kαi,j,k*Gα+Kβi,j,k*Gβ+Kγi,j,k*Gγ+Kδi,j,k*Gδ
BTi,j,k＝Kαi,j,k*Bα+Kβi,j,k*Bβ+Kγi,j,k*Bγ+Kδi,j,k*Bδ
then obtaining a four-primary-color fiber discretization gradual-change chromatogram, and then entering the step E; wherein R isTi,j,k、GTi,j,k、BTi,j,kFor coupling the chromatograms of the fibre subsamples, Rα、Gα、BαIs the color tristimulus value, R, of the colored fiber αβ、Gβ、BβIs the color tristimulus value, R, of the colored fiber βγ、Gγ、BγIs the color tristimulus value, R, of the colored fiber gammaδ、Gδ、BδIs the color tristimulus value of the colored fiber delta;
step E, obtaining the densities rho of the color fiber rovings corresponding to the four color fibers α, β, gamma and delta respectively according to the procedures of cotton matching, pattern matching, bale arrangement, cotton opening and cleaning, drawing and roving in the pre-spinning processα、ρβ、ργ、ρδThen entering step F; step F, according to the coupling mass mixing ratio general formula of the coupling sequence number combinations i, j and k respectively corresponding to the four color fibers, combining the linear densities rho of the color fiber rovings respectively corresponding to the four color fibersα、ρβ、ργ、ρδAccording to the following formula:
Eαi,j,k＝Kαi,j,k*ρyi,j,k/ρα
Eβi,j,k＝Kβi,j,k*ρyi,j,k/ρβ
Eγi,j,k＝Kγi,j,k*ρyi,j,k/ργ
Eδi,j,k＝Kδi,j,k*ρyi,j,k/ρδ
obtaining the draft ratios E of the channels corresponding to the four kinds of color fiber rough yarns respectivelyαi,j,k、Eβi,j,k、Eγi,j,k、Eδi,j,kBased on the draft ratio Eαi,j,k、Eβi,j,k、Eγi,j,k、Eδi,j,kAfter asynchronous drafting and converging twisting are carried out on the four kinds of colored fiber rough yarns, the yarns coupled with the chromatograph corresponding to the coupled fiber chromatograph are obtained, wherein rhoyi,j,kShows the preset linear density of the yarn obtained after asynchronous drafting, converging and twisting are carried out on the four color fibers α, β, gamma and delta corresponding to the coupling order number combination i, j and k.
2. The method for spinning the gradient yarn by four-primary-color fiber coupling blending based on the discrete gradient chromatography as claimed in claim 1, wherein the method comprises the following steps: step G is also included, after step F is executed, step G is entered;
g, according to the draft ratios E of the channels corresponding to the four kinds of color fiber rovings respectivelyαi,j,k、Eβi,j,k、Eγi,j,k、Eδi,j,kAnd the linear densities rho corresponding to the four kinds of color fiber roving respectivelyα、ρβ、ργ、ρδAccording to the following formula:
ρ'yi,j,k＝ρα/Eαi,j,k+ρβ/Eβi,j,k+ργ/Eγi,j,k+ρδ/Eδi,j,k
obtaining the actual linear density rho 'of the yarn obtained by carrying out asynchronous drafting and converging twisting on the four color fiber rovings corresponding to the combination of coupling order numbers i, j, k'yi,j,k。
3. The method for spinning gradient yarns through four-primary-color fiber coupling compounding based on discrete gradient chromatography as claimed in claim 2, wherein the step G further comprises the following steps:
four rough yarns prepared by four primary color fibers are subjected to asynchronous drafting to realize coupling blending, then are converged and twisted to form four primary color mixed color yarns, and the four primary color mixed color yarns are combined according to the coupling quality general formula of the coupling fiber corresponding to the coupling sequence number combination i, j and k according to the following formula:
Kyαi,j,k＝(ρα/Eαi,j,k)/(ρα/Eαi,j,k+ρβ/Eβi,j,k+ργ/Eγi,j,k+ρδ/Eδi,j,k)
Kyβi,j,k＝(ρβ/Eβi,j,k)/(ρα/Eαi,j,k+ρβ/Eβi,j,k+ργ/Eγi,j,k+ρδ/Eδi,j,k)
Kyγi,j,k＝(ργ/Eγi,j,k)/(ρα/Eαi,j,k+ρβ/Eβi,j,k+ργ/Eγi,j,k+ρδ/Eδi,j,k)
Kyδi,j,k＝(ρδ/Eδi,j,k)/(ρα/Eαi,j,k+ρβ/Eβi,j,k+ργ/Eγi,j,k+ρδ/Eδi,j,k)
obtaining a mixing ratio general formula K of four color fibers in the yarn, wherein the four color fibers respectively correspond to the coupling sequence number combinations i, j and Kyαi,j,k、Kyβi,j,k、Kyγi,j,k、Kyδi,j,k(ii) a Wherein, Kyαi,j,kRepresenting the mixing ratio general formula, K, of the α color fibers in the yarn corresponding to the coupling order number combination i, j, Kyβi,j,kA mixing ratio formula, K, representing the combination of coupling order numbers i, j, K corresponding to β color fibersyγi,j,kA mixing ratio general formula, K, of a combination i, j, K representing the corresponding coupling order number of the gamma-colored fiberyδi,j,kAnd the mixing ratio general formula of the coupling sequence number combination i, j and k corresponding to the delta color fibers is shown.
4. The method for spinning the gradient yarn by four-primary-color fiber coupling blending based on the discrete gradient chromatogram according to claim 3, characterized in that: step H is also included, after step G is executed, step H is entered;
and H, according to the mixing ratio general formula of the coupling sequence number combinations i, j and k respectively corresponding to the four color fibers, aiming at the RGB colors of the four color fibers, obtaining the RGB general formula of the coupling sequence number combinations i, j and k corresponding to the coupling fibers as follows:
Gyi,j,k＝Kyαi,j,k*Gyα+Kyβi,j,k*Gyβ+Kyγi,j,k*Gyγ+Kyδi,j,k*Gyδ
Byi,j,k＝Kyαi,j,k*Byα+Kyβi,j,k*Byβ+Kyγi,j,k*Byγ+Kyδi,j,k*Byδ
wherein R isyi,j,k、Gyi,j,k、Byi,j,kThe general formula of RGB is expressed as the combination of coupling sequence numbers i, j, k corresponding to the coupling fibers; ryα、Gyα、ByαIndicates a linear density of ρ 'spun from α color fibers'yi,j,kThe color tristimulus value of the yarn of (a); ryβ、Gyβ、ByβIndicates a linear density of ρ 'spun from β color fibers'yi,j,kOf the yarn of (2) has a color tristimulus value, Ryγ、Gyγ、ByγRepresents a linear density of ρ'yi,j,kOf the yarn of (2) has a color tristimulus value, Ryδ、Gyδ、ByδRepresents a linear density of ρ'yi,j,kThe color tristimulus value of the yarn.
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Denomination of invention: A Method of Spinning Graded Yarn by Coupling Blending of Four Primary Color Fibers Based on Discrete Gradual Change Chromatography Effective date of registration: 20221108 Granted publication date: 20200626 Pledgee: Qilu bank Limited by Share Ltd. Binzhou branch Pledgor: YUYUE HOME TEXTILE Co.,Ltd. Registration number: Y2022980021231 |