A computer color matching method for blended fabrics

Abstract

The present invention discloses a computer color matching method for blended fabrics. The 100% first single-component blank fabric and the 100% second single-component blank fabric are dyed respectively according to different concentration levels to obtain 100% first single-component basic color samples, 100% second single-component basic color samples and the corresponding reflectance values. Then, according to the color difference threshold of the standard blended color sample, the reflectance value of the standard blended color sample, the reflectance value of the 100% first single-component basic color sample and the proportion of the first single-component fiber content in the standard blended color sample, the first single-component color sample formula is calculated, and the first single-component color sample formula is iteratively corrected to obtain the first single-component corrected formula that meets the color difference threshold of the standard blended color sample. And according to the reflectance value of the color presented on the whole of the blended blank fabric by the first single-component corrected formula, the second single-component dyeing formula in the blended half-color sample is calculated, and the second single-component dyeing formula is iteratively corrected until the color matching of the blended fabric is completed.

Description

Technical Field

[0001] The present invention relates to the field of fabric color matching, and particularly to a computer color matching method for blended fabrics. Background Art

[0002] With the improvement of living standards, textiles made of single-component fibers have gradually been unable to meet the diverse needs of the majority of consumers. Multicomponent fiber textiles (commonly known as blended fabrics) can combine the properties of multiple fibers, complement each other's advantages, improve the appearance and quality of general textiles, and enhance the wearing performance, thus being deeply loved by consumers. Among them, the output of two-component fiber textiles is the highest.

[0003] Although blended fabrics have many advantages, due to the differences in fiber structure and properties, the dyes and dyeing processes used in their dyeing and processing are also different, resulting in problems such as uneven dyeing, color spots, and color streaks during the dyeing process of blended fabrics, which affect the quality of the finished products. Taking two-component blended fabrics as an example, the current dyeing methods mainly fall into two categories: the one-bath method and the two-bath method. The one-bath method means dyeing two fibers in the same dye bath, which is suitable for dyeing light and medium colors and is convenient to operate, but the color fastness of the color sample is relatively poor; the two-bath method means dyeing different fibers in two dye baths in sequence, which is suitable for dyeing dark and strong colors, takes a long time, but has better color fastness. When dyeing blended fabrics, it is necessary to dye different components in the blended fibers into the same hue, depth, and saturation. However, in the actual dyeing process, due to mutual staining between different fibers and the mutual influence between dyes, when performing computer color matching for blended fabrics, it cannot be simply color-matched with a single component and then proportionally distributed, which is relatively complex as a whole.

[0004] Currently, there are many studies and relatively widespread applications on computer color matching methods for single-component fiber textiles at home and abroad, but there are few studies on blended fabrics. Existing research mainly improves the color matching effect by increasing the staining database. For example, as mentioned in the literature "Practice of Improving the Accuracy of Computer Color Matching for Polyester-Cotton Blended Fabrics" (Dyeing & Finishing, Yu Chunhua, Zhang Weiliang. 1988, NO.4, Vol.14: 201-206), taking polyester-cotton blended fabrics as an example, color matching is performed by increasing the staining database, which improves the color matching result. However, the establishment of the staining database requires a large number of experiments, but the application conditions are relatively harsh. Once there are slight changes in process conditions, fabric tissue structure, and fiber specifications, the effect of the staining database will significantly decline, with a small actual application range and high costs. In addition, the two dyeing methods for blended fabrics also have differences in color matching. The one-bath method requires determining the dyeing formulations for both fibers simultaneously, while the two-bath method can first determine the dyeing formulation for one fiber and then determine the formulation for the other fiber. Currently, the relevant research on computer color matching for blended fabrics using the two-bath dyeing method has not classified and studied this. Summary of the Invention

[0005] A brief overview of one or more aspects is given below to provide a basic understanding of these aspects. This overview is not an exhaustive survey of all contemplated aspects and is neither intended to identify key or decisive elements of all aspects nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that follows.

[0006] The object of the present invention is to solve the above problems, and a computer color matching method for blended fabrics is provided. The blended fabrics are color-matched by using a two-bath dyeing method. The first single-component color sample formula is automatically calculated according to the color difference threshold of the standard blended fabric and the reflectance value of the standard blended fabric. The corresponding modified formula is obtained by iterative color correction of the first single-component color sample formula. Then, the second single-component dyeing formula is calculated according to the modified formula. The final color matching scheme is obtained by iterative correction of the concentration of the second single-component dyeing formula, thereby completing the color matching of the blended fabrics.

[0007] The technical solution of the present invention is as follows:

[0008] The present invention provides a computer color matching method for blended fabrics, comprising the following steps:

[0009] Obtain the basic information of the standard blended color sample; wherein, the basic information of the standard blended color sample includes the first single-component fiber type, the first single-component fiber content, the second single-component fiber type, the second single-component fiber content, the color difference threshold of the standard blended color sample, and the reflectance value of the standard blended color sample;

[0010] Obtain 100% first single-component blank fabric and 100% second single-component blank fabric, and dye the 100% first single-component blank fabric and the 100% second single-component blank fabric respectively with dyes of corresponding dye types according to different concentration grades, so as to obtain 100% first single-component basic color samples, 100% second single-component basic color samples, and the corresponding 100% first single-component basic color sample reflectance values and 100% second single-component basic color sample reflectance values;

[0011] Automatically color-match the 100% first single-component blank fabric based on the color difference threshold of the standard blended color sample, the reflectance value of the standard blended color sample, and the reflectance value of the 100% first single-component basic color sample to obtain the first single-component basic color sample formula, and then convert the first single-component basic color sample formula into the first single-component color sample formula in the blended blank fabric according to the proportion of the first single-component fiber content in the standard blended color sample;

[0012] Using the first single-component color sample formula, co-bath dyeing is carried out on the blended blank fabric, 100% first blank fabric, and 100% second blank fabric respectively to obtain the blended semi-color sample, the first single-component color sample, and the second single-component color sample;

[0013] Detect the reflectance values corresponding to the first single-component color sample and the second single-component color sample respectively, and calculate the reflectance value of the color presented on the first single-component fiber in the blended blank fabric according to the reflectance values corresponding to the first single-component color sample and the second single-component color sample;

[0014] Calculate the first color difference between the reflectance value of the color presented on the first single-component fiber in the blended blank fabric by the first single-component color sample formula and the standard blended color sample, and then iteratively modify the first single-component color sample according to the first color difference to obtain the first single-component modified formula that meets the color difference threshold of the standard blended color sample;

[0015] Calculate the reflectance value of the color presented on the whole blended blank fabric by the first single-component modified formula that meets the color difference threshold of the standard blended color sample according to the reflectance value of the color presented on the first single-component fiber in the blended blank fabric by the first single-component modified formula that meets the color difference threshold of the standard blended color sample;

[0016] According to the reflectance value of the color presented on the whole blended blank fabric by the first single-component modified formula that meets the color difference threshold of the standard blended color sample, calculate the second single-component dyeing formula in the blended semi-color sample, and use the calculated second single-component dyeing formula to dye the blended semi-color sample dyed by the first single-component modified formula that meets the color difference threshold of the standard blended color sample to obtain the blended actual dyeing sample;

[0017] Detect the reflectance value of the blended actual dyeing sample, and calculate the second color difference between the blended actual dyeing sample and the standard blended color sample according to the reflectance value of the blended actual dyeing sample;

[0018] Modify the second single-component dyeing formula according to the second color difference to obtain the blended actual dyeing sample formula that meets the color difference threshold of the standard blended color sample, and complete the color matching of the blended fabric.

[0019] According to an embodiment of the computer color matching method for blended fabrics of the present invention, the blended blank fabric contains two types of single-component fibers; wherein, the single-component fiber types include cotton, polyester, nylon, wool, and spandex.

[0020] According to an embodiment of the computer color matching method for blended fabrics of the present invention, the first single-component color sample formula contains dyes with various different concentrations; wherein, after obtaining the color difference threshold of the standard blended color sample, the color difference threshold of the standard blended color sample, and the reflectance value of the 100% first single-component base color sample, the computer color matching software is used to automatically match the color of the 100% first single-component base color sample to obtain the first single-component base color sample formula, and then the first single-component base color sample formula is converted into the first single-component color sample formula in the blended blank fabric according to the proportion of the first single-component fiber content in the standard blended color sample; wherein, the computer color matching method for blended fabrics converts the first single-component base color sample formula into the first single-component color sample formula in the blended blank fabric corresponding to the proportion of the first single-component fiber content through the following formula:

[0021]

[0022] ; wherein, n represents the number of dyes,

[0023] A i represents the first single-component base color sample formula corresponding to the 100% first single-component blank fabric,

[0024] A j represents the first single-component color sample formula in the blended blank fabric,

[0025] represents the concentration corresponding to the nth dye in the 100% first single-component base color sample formula A i in the first single-component base color sample formula A

[0026] According to an embodiment of the computer color matching method for blended fabrics of the present invention, when the computer color matching method for blended fabrics uses the first single-component color sample formula to perform co-bath dyeing on the blended blank fabric, the 100% first single-component blank fabric, and the 100% second single-component blank fabric respectively, the usage amounts of the 100% first single-component blank fabric, the 100% second single-component blank fabric, and the first single-component dye are determined according to the first single-component fiber content in the blended blank fabric; wherein, when the usage amount of the blended blank fabric is represented by X and the first single-component fiber content in the blended blank fabric is represented by w a when,

[0027] The calculation formula for the usage amount of the first blank fabric is: 0.1X × w a ;

[0028] The calculation formula for the usage amount of the second blank fabric is: 0.1X × (1 - w a );

[0029] The calculation formula for the usage amount of the first single-component dye is: 1.1X × A j .

[0030] According to an embodiment of the computer color matching method for blended fabrics of the present invention, after the reflectance values corresponding to the first single-component color sample and the second single-component color sample are detected by the computer color matching method for blended fabrics, the reflectance values corresponding to the first single-component color sample and the second single-component color sample are converted into the K / S value of the first single-component color sample and the K / S value of the second single-component color sample. Then, according to the K / S value of the first single-component color sample and the K / S value of the second single-component color sample, the K / S value of the color presented on the first single-component fiber in the blended blank fabric by the first single-component color sample formulation is calculated. Finally, the K / S value of the color presented on the first single-component fiber in the blended blank fabric by the calculated first single-component color sample formulation is converted into the reflectance value of the color presented on the first single-component fiber in the blended blank fabric by the first single-component color sample formulation; wherein, the computer color matching method for blended fabrics calculates the K / S value of the color presented on the first single-component fiber in the blended blank fabric by the first single-component color sample formulation through the following formula:

[0031] H an =H am +H bm -H bt

[0032] ; wherein, H an represents the K / S value of the color presented on the first single-component fiber in the blended blank fabric by the first single-component color sample formulation A j ;

[0033] H am represents the K / S value of the first single-component color sample,

[0034] H bm represents the K / S value of the second single-component color sample,

[0035] H bt represents the K / S value of the 100% second single-component blank fabric.

[0036] According to an embodiment of the computer color matching method for blended fabrics of the present invention, after the computer color matching method for blended fabrics calculates the first color difference (ΔE) between the reflectance value of the color presented on the first single-component fiber in the blended blank fabric by the first single-component color sample formulation and the standard blended color sample a , by comparing the first color difference (ΔE) a with the color difference threshold (ΔE) of the standard blended color sample s it is determined whether it is necessary to perform iterative color correction on the first single-component color sample formulation; wherein,

[0037] when the first color difference (ΔE) a is less than or equal to the color difference threshold (ΔE) of the standard blended color sample sWhen this is the case, there is no need to modify the color of the first single-component color sample formula; at this time, the first single-component color sample color correction formula is the first color difference value (ΔE). a is less than or equal to the color difference threshold value (ΔE) of the standard blended color sample S corresponding to the first single-component color sample formula;

[0038] When the first color difference value (ΔE) a is greater than the color difference threshold value (ΔE) S at this time, automatic color matching is performed on the difference between the reflectance value of the color presented on the first single-component fiber in the blended fabric and the reflectance value of the standard blended color sample to obtain the first single-component color sample color correction formula, and then the blended blank fabric, 100% first single-component first blank fabric, and 100% second single-component blank fabric are dyed again according to the first single-component color sample color correction formula, and the new first color difference value is calculated, and then it is judged whether the calculated new first color difference value is less than or equal to the standard blended color difference threshold value; if so, the iterative color correction of the first single-component color sample is completed to obtain the first single-component color sample color correction formula; if not, continue to iteratively calculate the first single-component color sample color correction formula.

[0039] According to an embodiment of the computer color matching method for blended fabrics of the present invention, after the computer color matching method for blended fabrics obtains the first single-component color correction formula that meets the color difference threshold value of the standard blended color sample, it converts the reflectance value of the color presented on the first single-component fiber in the blended blank fabric of the first single-component color correction formula into the K / S value of the reflectance value of the color presented on the first single-component fiber in the blended blank fabric of the first single-component color correction formula, and then calculates the K / S value of the color presented on the whole blended blank fabric according to the K / S value of the reflectance value of the color presented on the first single-component fiber in the blended blank fabric of the first single-component color correction formula, and finally converts the K / S value of the color presented on the whole blended blank fabric of the first single-component color correction formula into the reflectance value of the color presented on the whole blended blank fabric of the first single-component color correction formula; wherein, the computer color matching method for blended fabrics calculates the K / S value of the color presented on the first single-component fiber in the blended blank fabric of the first single-component color correction formula through the following formula:

[0040] H as =(H al -H at )×w a +H st

[0041] ; where, H as represents the K / S value of the color presented on the whole blended blank fabric of the first single-component color correction formula that meets the color difference threshold value of the standard blended color sample,

[0042] Hal The K / S value representing the color presented on the first single-component fiber in the blended blank fabric by the first single-component color correction formula that meets the color difference threshold of the standard blended color sample

[0043] H at Represents the K / S value of the 100% first-component blank fabric

[0044] w a Represents the content of the first single-component fiber in the blended blank fabric

[0045] H st Represents the K / S value of the blended blank fabric

[0046] According to an embodiment of the computer color matching method for blended fabrics of the present invention, the computer color matching method for blended fabrics converts the K / S value into a reflectance value through the following formula:

[0047]

[0048] Wherein, R represents the reflectance value under the main light source

[0049] According to an embodiment of the computer color matching method for blended fabrics of the present invention, after obtaining the K / S value of the color presented on the whole of the blended blank fabric by the first single-component color correction formula that meets the color difference threshold of the standard blended color sample, the initial concentration value formula B corresponding to the second single-component dyeing formula is calculated according to the K / S value of the color presented on the whole of the blended blank fabric by the first single-component color correction formula that meets the color difference threshold of the standard blended color sample i , and then the corrected concentration value formula B that meets the color difference threshold of the standard blended color sample is obtained through iterative correction of the initial concentration value formula B i ; wherein, the computer color matching method for blended fabrics calculates the initial concentration value formula B through the following formula j : i :

[0050] B i = [F T × F] -1 F T × QD[H s - H as

[0051] F = Q × D × K

[0052] ; wherein, B i represents the initial concentration formula of the second single-component dyeing formula in the blended semi-color sample

[0053] q represents the weight coefficient at different wavelengths ​

[0054] D represents the rate of change of the color reflectance value of the standard blended color sample with respect to the K / S value,

[0055] H s represents the K / S value of the color of the standard blended color sample,

[0056] H as represents the K / S value of the color presented on the entire blended blank fabric by the first single-component color correction formula that meets the color difference threshold of the standard blended color sample,

[0057] K represents the K / S value per unit concentration of the dye corresponding to the second single-component fiber.

[0058] According to an embodiment of the computer color matching method for blended fabrics of the present invention, the computer color matching method for blended fabrics calculates the initial concentration value formula B of the second single-component dyeing formula i After that, calculate the theoretical color difference between the reflectance value corresponding to the initial concentration formula and the reflectance difference between the standard blended color sample and the color presented on the entire blended blank fabric by the first single-component color correction formula that meets the color difference threshold. Determine whether to iteratively correct the initial concentration value formula of the second single-component dyeing formula by judging whether the calculated theoretical color difference meets the color difference threshold of the standard blended color sample; wherein,

[0059] If the theoretical color difference meets the color difference threshold of the standard blended color sample, there is no need to correct the initial concentration value formula B i ; At this time, the corrected concentration formula B j is the initial concentration value formula B i ;

[0060] If the theoretical color difference does not meet the color difference threshold of the standard blended color sample, correct the initial concentration value formula B i Then judge whether the theoretical color difference between the reflectance value corresponding to the corrected concentration value formula and the reflectance difference between the standard blended color sample and the color presented on the entire blended blank fabric by the first single-component color correction formula that meets the color difference threshold meets the color difference threshold of the standard blended color sample; if so, use the corrected concentration value formula as the corrected concentration formula B j ; If not, continue to correct the initial concentration value formula B i until a corrected concentration formula B that meets the color difference threshold of the standard blended color sample is obtained j .

[0061] According to an embodiment of the computer color matching method for blended fabrics of the present invention, the computer color matching method for blended fabrics calculates the corrected concentration value formula B corresponding to the second single-component through the following formula j :

[0062]

[0063] (ΔR) λ = R bi -(R S - R al )

[0064] ; wherein, B j represents the corrected concentration formula of the second single component in the blended semi-color sample,

[0065] T represents the change in the concentration of the corresponding type of dye in the second single component fiber when there is a slight change in the reflectance,

[0066] R bi represents the reflectance value corresponding to the initial concentration formula of the second single component in the blended semi-color sample,

[0067] R S represents the reflectance value of the standard blended color sample,

[0068] R al represents the reflectance value of the color presented on the entire blended blank fabric by the first single component color correction formula that meets the color difference threshold,

[0069] represents the concentration corresponding to the nth dye in the corrected concentration formula B of the second single component in the blended semi-color sample j in the corrected concentration formula B of the second single component in the blended semi-color sample.

[0070] According to an embodiment of the computer color matching method for blended fabrics of the present invention, after the computer color matching method for blended fabrics calculates the reflectance value of the blended actual dyed sample and calculates the second color difference between the blended actual dyed sample and the standard blended color sample, by comparing the second color difference (ΔE) m with the color difference threshold (Δe) of the standard blended color sample S to determine whether it is necessary to iteratively correct the dyeing formula of the second single component; wherein,

[0071] When the second color difference (ΔE) m is less than or equal to the color difference threshold (Δe) of the standard blended color sample S then there is no need to perform color correction, and the color matching of the blended fabric is completed;

[0072] When the second color difference (ΔE) m is greater than the color difference threshold (ΔE) SWhen the condition is met, according to the difference between the reflectance values of the blended solid color sample and the standard blended color sample, the reflectance value of the standard blended color sample is adjusted according to the reflectance value adjustment formula of the standard blended color sample. Then, the second single component in the blended semi-color sample is recalculated to obtain the second single component color correction formula. Then, the blended semi-color sample dyed with the first single component color correction formula that meets the color difference threshold is dyed again according to the recalculated second single component color correction formula to obtain the blended solid color sample, and the new second color difference value is calculated. Then, it is judged whether the calculated new second color difference value is less than or equal to the color difference threshold. If so, the iterative color correction of the second single component color sample is completed to obtain the color correction formula. If not, the second single component dyeing formula is continuously iteratively calculated.

[0073] According to an embodiment of the computer color matching method for blended fabrics of the present invention, the reflectance value adjustment formula of the standard blended color sample is as follows:

[0074]

[0075] Wherein, represents the reflectance value of the adjusted standard blended color sample,

[0076] R s represents the reflectance value of the standard blended color sample before adjustment,

[0077] R m represents the reflectance value of the blended solid color sample.

[0078] The present invention has the following beneficial effects compared with the prior art: The present invention is aimed at the color matching of blended fabrics dyed by the two-bath method. According to the standard blended fabric color difference threshold and the standard blended fabric reflectance value, the first single component basic color sample formula is automatically calculated. Then, the first single component basic color sample formula is calculated and converted according to the proportion of the first single component fiber content in the standard blended color sample to obtain the first single component color sample formula in the blended blank fabric. Through the iterative color correction of the first single component color sample formula, the color correction formula is obtained. Then, the second single component dyeing formula is calculated according to the color correction formula, and the second single component dyeing formula is iteratively corrected until the color matching of the blended fabric is completed. Compared with the prior art, the present invention combines computer software to establish a standardized color matching method for blended fabrics dyed by the two-bath method, uses computer software to automatically calculate the color sample formulas corresponding to different two single component fibers, and combines the standard blended color sample color difference threshold to iteratively correct the color sample formulas of the two single component fibers respectively, solves the problems of staining and mutual influence between dyes in the process of dyeing blended fabrics, and avoids the color matching differences caused by different dyeing methods, improving the color matching accuracy. And the present invention does not need to establish a staining database in advance, and can complete the automatic color matching of blended fabrics through standardized color matching steps, with wide applicability. Description of the Drawings

[0079] After reading the detailed description of the embodiments of the present disclosure in conjunction with the following drawings, the above features and advantages of the present invention can be better understood. In the drawings, the components are not necessarily drawn to scale, and components with similar relevant characteristics or features may have the same or similar reference numerals.

[0080] Figure 1 It is a flowchart showing an embodiment of a computer color matching method for blended fabrics of the present invention. Detailed implementation manners

[0081] The present invention will be described in detail below in conjunction with the drawings and specific embodiments. Note that the aspects described below in conjunction with the drawings and specific embodiments are merely exemplary and should not be construed as imposing any limitation on the protection scope of the present invention.

[0082] An embodiment of a computer color matching method for blended fabrics is disclosed herein. Figure 1 It is a flowchart showing an embodiment of a computer color matching method for blended fabrics of the present invention. Please refer to Figure 1 The following are the detailed descriptions of the steps of the computer color matching method for blended fabrics.

[0083] Step S1: Obtain the basic information of the standard blended color sample; wherein, the basic information of the standard blended color sample includes the first single-component fiber type, the first single-component fiber content, the second single-component fiber type, the second single-component fiber content, the color difference threshold of the standard blended color sample, and the reflectance value of the standard blended color sample.

[0084] Step S2: Obtain 100% first single-component blank fabric and 100% second single-component blank fabric, and dye the 100% first single-component blank fabric and the 100% second single-component blank fabric respectively with dyes of corresponding dye types according to different concentration grades, so as to obtain 100% first single-component basic color samples, 100% second single-component basic color samples, and the corresponding reflectance values of the 100% first single-component basic color samples and the 100% second single-component basic color samples.

[0085] In this embodiment, before color matching of the blended fabric, first obtain the basic information of the standard blended color sample, and then perform computer color matching according to the basic information of the standard blended color sample. Among them, the basic information of the standard blended color sample includes the first single-component fiber type, the first single-component fiber content, the second single-component fiber type, the second single-component fiber content, the color difference threshold of the standard blended color sample, and the reflectance value of the standard blended color sample. According to this information, obtain the corresponding 100% first single-component blank fabric and 100% second single-component blank fabric (that is, the blank fabrics containing 100% first single-component fiber and 100% second single-component fiber) respectively, and then dye the 100% first single-component blank fabric and 100% second single-component blank fabric with dyes of the corresponding dye types according to different concentration levels, so as to obtain the 100% first single-component basic color sample, the 100% second single-component basic color sample, and the corresponding 100% first single-component basic color sample reflectance value and 100% second single-component basic color sample reflectance value.

[0086] Specifically, in this embodiment, the blended blank fabric contains two single-component fiber types, namely single-component fiber a and single-component fiber b. Among them, the component fiber types include cotton, polyester, nylon, wool, and spandex. The concentration range of the dye product is: 0-10% (the concentration levels can be divided into 10-20 according to the concentration range), and the dye product types are divided into reactive dyes, disperse dyes, and acid dyes. According to the type of single-component fiber contained in the standard blended color sample, obtain the 100% first single-component blank fabric containing 100% single-component fiber a and 100% single-component fiber b (hereinafter sometimes referred to as blank fabric a), and the 100% second single-component blank fabric (hereinafter sometimes referred to as blank fabric b), and then select the corresponding type of dye to dye the 100% first blank fabric and 100% second blank fabric according to different concentration levels respectively, so as to obtain the 100% first single-component basic color sample (hereinafter sometimes referred to as basic color sample a), the 100% second single-component basic color sample (hereinafter sometimes referred to as basic color sample b), and detect the 100% first single-component basic color sample reflectance value and 100% second single-component basic color sample reflectance value under the main light source.

[0087] In one implementation manner, assume that the blended fabric contains 60% of single-component fiber a and 40% of single-component fiber b. Then, it is necessary to select a dye to dye the corresponding blank fabric a and blank fabric b containing 100% single-component fiber a and 100% single-component fiber b respectively according to different concentration levels, so as to obtain the corresponding basic color sample a and basic color sample b of single-component fiber a and single-component fiber b. In addition, in this embodiment, a blended blank fabric with the corresponding proportion is made according to the contents of the two single-component fibers in the blended fabric, and the blended blank fabric is used as the basic fabric to be dyed.

[0088] Step S3: Automatically match the color of the 100% first single-component blank fabric based on the color difference threshold of the standard blended color sample, the reflectance value of the standard blended color sample, and the reflectance value of the 100% first single-component base color sample to obtain the first single-component base color sample formula, and then convert the first single-component base color sample formula into the first single-component color sample formula in the blended blank fabric according to the proportion of the first single-component fiber content in the standard blended color sample.

[0089] In this embodiment, after obtaining the 100% first single-component base color sample, the 100% second single-component base color sample, and the corresponding 100% first single-component base color sample reflectance value and 100% second single-component base color sample reflectance value through the above step S2, combined with the obtained standard blended color sample color difference threshold, standard blended color sample reflectance value, and 100% first single-component base color sample reflectance value, use the computer color matching system to automatically match the color of the 100% first single-component blank fabric (i.e., blank fabric a) to obtain the first single-component base color sample formula, and then convert the first single-component base color sample formula into the first single-component color sample formula in the blended blank fabric according to the proportion of the first single-component fiber content in the standard blended color sample.

[0090] Specifically, in this embodiment, the computer color matching system converts the first single-component base color sample formula into the first single-component color sample formula in the blended blank fabric corresponding to the first single-component fiber content ratio through the following formula:

[0091]

[0092] ; where n represents the number of dyes, A i represents the first single-component base color sample formula corresponding to the 100% first single-component blank fabric, A j represents the first single-component color sample formula in the blended blank fabric, represents the concentration of the nth dye in the 100% first single-component base color sample formula A i In this embodiment, the number of dyes included in the first single-component standard color sample formula A i is 1 to 8, preferably, the number of dyes is 2 to 4.

[0093] Step S4: Use the first single-component color sample formula to perform co-bath dyeing on the blended blank fabric, 100% first blank fabric, and 100% second blank fabric respectively to obtain the blended semi-color sample, the first single-component color sample, and the second single-component color sample.

[0094] In this embodiment, through the above step S3, the first single-component base color sample formula A jAfter that, determine the dosages of 100% first single-component blank fabric (blank fabric a), 100% second single-component blank fabric (blank fabric b), and the first single-component (single-component fiber a) dye according to the content of the first single-component fiber (single-component fiber a) in the blended blank fabric, and then adopt the first single-component color sample formula A j Carry out co-bath dyeing on the blended blank fabric, blank fabric a, and blank fabric b respectively to obtain a blended semi-color sample, a first single-component color sample (hereinafter sometimes simply referred to as single-component color sample A), and a second single-component color sample (single-component color sample B). Among them, when the dosage of the blended blank fabric is expressed as X and the content of the first single-component fiber (i.e., single-component fiber a) in the blended blank fabric is expressed as w a When, the calculation formula for the dosage of the first blank fabric is: 0.1X×w a The calculation formula for the dosage of the second blank fabric is: 0.1X×(1 - w a ); The calculation formula for the dosage of the first single-component dye is: 1.1X×A j . Through the above formulas, the dosages of blank fabric a, blank fabric b, and the blended fabric for co-bath dyeing, as well as the unified standard dosage of the required dye, can be obtained, improving the dyeing accuracy.

[0095] Step S5: Detect the reflectance values corresponding to the first single-component color sample and the second single-component color sample respectively, and calculate the reflectance value of the color presented on the first single-component fiber in the blended blank fabric according to the reflectance values corresponding to the first single-component color sample and the second single-component color sample.

[0096] In this embodiment, after obtaining the blended semi-color sample, single-component color sample A (the first single-component color sample), and single-component color sample B (the second single-component color sample) through the above steps, detect the reflectance values of single-component color sample A and single-component color sample B under the main light source respectively, and then calculate the first single-component color sample formula A in the blended blank fabric using the reflectance values corresponding to single-component color sample A and single-component color sample B j The reflectance value of the color presented on the single-component fiber a in the blended fabric.

[0097] Specifically, in this embodiment, after obtaining the reflectance values of the single-component color sample A and the single-component color sample B under the main light source, the reflectance values corresponding to the first single-component color sample (single-component color sample A) and the second single-component color sample (single-component color sample B) are converted into the K / S value of the first single-component color sample and the K / S value of the second single-component color sample. Then, according to the K / S value of the first single-component color sample and the K / S value of the second single-component color sample, the K / S value of the color presented on the first single-component fiber in the blended blank fabric for the first single-component color sample formulation is calculated. Finally, the K / S value of the color presented on the first single-component fiber in the blended blank fabric for the first single-component color sample formulation, which is calculated, is converted into the reflectance value of the color presented on the first single-component fiber in the blended blank fabric for the first single-component color sample formulation. Among them, the calculation formula for the K / S value of the color presented on the first single-component fiber in the blended blank fabric for the first single-component color sample formulation is as follows:

[0098] H an =H am +H bm -H bt

[0099] Among them, H an represents the K / S value of the color presented on the first single-component fiber in the blended blank fabric for the first single-component color sample formulation A j , H am represents the K / S value of the first single-component color sample, H bm represents the K / S value of the second single-component color sample, and H bt represents the K / S value of the 100% second single-component blank fabric.

[0100] In addition, in this embodiment, after obtaining the K / S value of the color presented on the first single-component fiber in the blended blank fabric for the first single-component color sample formulation through the above steps, the K / S value is converted into the reflectance value through the following formula:

[0101]

[0102] Among them, R represents the reflectance value under the main light source.

[0103] Step S6: Calculate the first color difference between the reflectance value of the color presented on the first single-component fiber in the blended blank fabric for the first single-component color sample formulation and the standard blended color sample, and then perform iterative color correction on the first single-component color sample according to the first color difference to obtain the first single-component color correction formulation that meets the color difference threshold of the standard blended color sample.

[0104] In this embodiment, after calculating the reflectance value of the color presented on the first single-component fiber in the blended blank fabric through the above steps for the first single-component color sample formula, calculate the first color difference between the reflectance value of the color presented on the first single-component fiber in the blended blank fabric for the first single-component color sample formula and the standard blended color sample, and then compare the first color difference (ΔE) a with the color difference threshold (ΔE) of the standard blended color sample S to determine whether it is necessary to iteratively modify the color of the first single-component color sample formula. Among them, the color difference is one of CIELAB, CMC(l:c), and CIEDE2000.

[0105] Specifically, in this embodiment, when the first color difference (ΔE) a is less than or equal to the color difference threshold (ΔE) of the standard blended color sample S then there is no need to modify the color of the first single-component color sample formula. At this time, the first single-component color sample modified formula is the first single-component color sample formula corresponding to the first color difference (ΔE) a being less than or equal to the color difference threshold (ΔE) of the standard blended color sample S When the first color difference (ΔE) a is greater than the color difference threshold (ΔE) S then automatic color matching is performed on the difference between the reflectance value of the color presented on the first single-component fiber in the blended fabric and the reflectance value of the standard blended color sample to obtain the first single-component color sample modified formula. Then, the blended blank fabric, 100% first single-component first blank fabric, and 100% second single-component blank fabric are dyed again according to the first single-component color sample modified formula, and the new first color difference is calculated. Then, it is determined whether the calculated new first color difference is less than or equal to the standard blended color difference threshold. If so, the iterative color modification of the first single-component color sample is completed to obtain the first single-component color sample modified formula; if not, continue to iteratively calculate the first single-component color sample modified formula. In other words, in this embodiment, if the first color difference calculated after the first formula is dyed meets the threshold requirements, there is no need to modify the color, and there is no modified formula for dyeing; if it does not meet the color difference threshold requirements, then the first dyed half-color sample can only be discarded. After calculating the modified formula, a new blended blank fabric is dyed again with the modified formula to obtain a new dyed half-color sample, and then the first color difference is calculated and it is determined whether it meets the threshold. Repeat this cycle until the requirements are met.

[0106] In one implementation, the first single-component color sample formula is iteratively modified through the intelligent dyeing single-component fabric color modification system to obtain the first single-component modified formula A that meets the color difference threshold of the standard blended color sample k .

[0107] Step S7: Calculate the reflectance value of the color presented by the first single-component color correction formula that meets the color difference threshold of the standard blended color sample on the entire blended blank fabric based on the reflectance value of the color presented by the first single-component color correction formula that meets the color difference threshold of the standard blended color sample on the first single-component fiber in the blended blank fabric.

[0108] In this embodiment, the first single-component color correction formula A that meets the color difference threshold of the standard blended color sample is obtained through the above steps k After that, according to the first single-component color correction formula A k The reflectance value of the color presented by the first single-component color correction formula A on the first single-component fiber in the blended blank fabric is used to calculate the first single-component color correction formula A k The reflectance value of the color presented on the entire blended blank fabric.

[0109] Specifically, in this embodiment, when calculating the reflectance value of the color presented by the first single-component color correction formula A k On the entire blended blank fabric, first convert the reflectance value of the color presented by the first single-component color correction formula A k On the first single-component fiber (single-component fiber a) in the blended blank fabric into the K / S value of the reflectance value of the color presented by the first single-component color correction formula A k On the first single-component fiber in the blended blank fabric, and then calculate the K / S value of the color presented by the first single-component color correction formula on the entire blended blank fabric according to the K / S value of the reflectance value of the color presented by the first single-component color correction formula on the first single-component fiber in the blended blank fabric. Finally, convert the K / S value of the color presented by the first single-component color correction formula on the entire blended blank fabric into the reflectance value of the color presented by the first single-component color correction formula on the entire blended blank fabric. Among them, the calculation formula for the K / S value of the color presented by the first single-component color correction formula A k On the first single-component fiber in the blended blank fabric is as follows: k The calculation formula for the K / S value of the color presented by the first single-component color correction formula A on the first single-component fiber in the blended blank fabric is as follows:

[0110] H as =(H al -H at )×w a +H st

[0111] Among them, H as Represents the K / S value of the color presented by the first single-component color correction formula that meets the color difference threshold of the standard blended color sample on the entire blended blank fabric, H al Represents the K / S value of the color presented by the first single-component color correction formula that meets the color difference threshold of the standard blended color sample on the first single-component fiber in the blended blank fabric, H at Represents the K / S value of 100% first-component blank fabric, w aRepresents the content of the first single-component fiber in the blended blank fabric, H st Represents the K / S value of the blended blank fabric. The first single-component color correction formula A is calculated through this formula k The K / S value of the color presented on the first single-component fiber in the blended blank fabric. The calculated K / S value is converted into the corresponding first single-component color correction formula A through the above calculation formula for converting the K / S value into the reflectivity value k The reflectivity value of the color presented on the first single-component fiber in the blended blank fabric.

[0112] Step S8: According to the reflectivity value of the color presented on the whole blended blank fabric by the first single-component color correction formula that meets the color difference threshold of the standard blended color sample, calculate the second single-component dyeing formula in the blended semi-color sample, and use the calculated second single-component dyeing formula to dye the blended semi-color sample dyed with the first single-component color correction formula that meets the color difference threshold of the standard blended color sample to obtain the blended actual dyed sample.

[0113] In this embodiment, the first single-component color correction formula A that meets the color difference threshold of the standard blended color sample is calculated through step S7 k After that, use the first single-component color correction formula A that meets the color difference threshold of the standard blended color sample k The K / S value of the color presented on the whole blended blank fabric to calculate the initial concentration value formula B corresponding to the second single-component dyeing formula (single-component fiber b formula) i , and then through the initial concentration value formula B i The iterative correction of obtains the corrected concentration value formula B that meets the color difference threshold of the standard blended color sample j . Among them, the initial concentration value formula B i The calculation formula is as follows:

[0114] B i =[F T ×F] -1 F T ×QD[H s -H as

[0115] F = Q×D×K

[0116] Among them, B i Represents the initial concentration formula of the second single-component dyeing formula in the blended semi-color sample, Q represents the weight coefficient at different wavelengths, D represents the rate of change of the color reflectivity value of the standard blended color sample with the K / S value, H s Represents the K / S value of the color of the standard blended color sample, H as ​It represents the K / S value of the color presented on the overall blended blank fabric by the first single-component color correction formula that meets the color difference threshold of the standard blended color sample. K represents the K / S value per unit concentration of the dye corresponding to the second single-component fiber type.

[0117] Specifically, in this embodiment, when calculating the second single-component dyeing formula in the blended half-color sample, first, the initial concentration value formula B i is used to obtain the initial concentration value formula B of the dye required for the second single-component i . Then, calculate the theoretical color difference between the reflectance value corresponding to the initial concentration formula B i and the reflectance difference between the standard blended color sample and the color presented on the overall blended blank fabric by the first single-component color correction formula that meets the color difference threshold. Then, determine whether to iteratively correct the initial concentration value formula of the second single-component dyeing formula by judging whether the calculated theoretical color difference meets the color difference threshold of the standard blended color sample. Among them, if the theoretical color difference threshold requirement is met, that is, the initial concentration formula B i meets the color difference threshold requirement, then the corrected concentration formula B j =B i . If the theoretical color difference does not meet the color difference threshold of the standard blended color sample, that is, the initial concentration formula B i does not meet the color difference threshold requirement, then the initial concentration formula B i is corrected through the concentration correction formula to obtain the corrected concentration value. Then, judge whether the theoretical color difference between the reflectance value corresponding to the corrected concentration value formula and the reflectance difference between the standard blended color sample and the color presented on the overall blended blank fabric by the first single-component color correction formula that meets the color difference threshold meets the color difference threshold of the standard blended color sample. If it meets, then the corrected concentration value formula is used as the corrected concentration formula B j . If it still does not meet, then repeat the iterative correction until the corrected concentration formula B j that meets the color difference threshold requirement is obtained. Among them, the correction formula for the corrected concentration value formula B j corresponding to the second single-component is as follows:

[0118]

[0119] (ΔR) λ =R bi -(R S -R al )

[0120] Among them, B j represents the corrected concentration formula of the second single-component in the blended half-color sample. T represents the change in the concentration of the dye corresponding to the second single-component fiber type when the reflectance changes slightly. R bi represents the reflectance value corresponding to the initial concentration formula of the second single-component in the blended half-color sample. RS Represents the reflectance value of the standard blended color sample, R al Represents the reflectance value of the color presented on the entire blended blank fabric by the first single-component color correction formula that meets the color difference threshold Represents the correction concentration formula B of the second single component in the blended semi-color sample j The corresponding concentration of the nth dye in

[0121] Step S9: Detect the reflectance value of the blended actual dyed sample, and calculate the second color difference between the blended actual dyed sample and the standard blended color sample based on the reflectance value of the blended actual dyed sample

[0122] Step S10: Correct the second single-component dyeing formula according to the second color difference to obtain a blended actual dyed sample formula that meets the color difference threshold of the standard blended color sample, and complete the color matching of the blended fabric

[0123] In this embodiment, after obtaining the correction concentration value formula B through the above step S8 j The correction concentration value formula B is used j As the second single-component dyeing formula to dye the blended semi-color sample dyed with the first single-component color correction formula that meets the color difference threshold of the standard blended color sample, to obtain a blended actual dyed sample, and detect the reflectance value of the blended actual dyed sample, and then use the reflectance value of the blended color sample to calculate the second color difference between the blended actual dyed sample and the standard blended color sample. By comparing the second color difference (ΔE) m With the color difference threshold (ΔE) of the standard blended color sample S To determine whether it is necessary to perform iterative color correction on the second single-component dyeing formula. Among them, when the second color difference (ΔE) m Is less than or equal to the color difference threshold (ΔE) of the standard blended color sample S Then there is no need to continue color correction, and the color matching work of the blended fabric is completed. When the second color difference (ΔE) m Is greater than the color difference threshold (ΔE) S Then, according to the difference between the reflectance values of the blended actual dyed sample and the standard blended color sample, adjust the reflectance value of the standard blended color sample according to the reflectance value adjustment formula of the standard blended color sample, and then recalculate the second single component in the blended semi-color sample to obtain the second single-component color correction formula. Then, dye the blended semi-color sample dyed with the first single-component color correction formula that meets the color difference threshold according to this color correction formula to obtain a blended actual dyed sample, and calculate the new second color difference. Then, determine whether the calculated new second color difference is less than or equal to the color difference threshold. If so, complete the iterative color correction of the second single-component color sample to obtain the color correction formula; if not, continue to iteratively calculate the second single-component dyeing formula

[0124] Furthermore, in this embodiment, when correcting the second single-component dyeing formula, the reflectance value of the standard blended color sample is adjusted by the following formula

[0125]

[0126] Among them, represents the reflectance value of the adjusted standard blended color sample, R s represents the reflectance value of the standard blended color sample before adjustment, R m represents the reflectance value of the blended solid color sample.

[0127] The foregoing description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0128] Those skilled in the art will further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, the various illustrative components, blocks, modules, circuits, and steps are described above in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

[0129] The various illustrative logical blocks, modules, and circuits described in connection with the embodiments disclosed herein can be implemented using a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0130] The steps of a method or algorithm described in connection with the embodiments disclosed in this specification can be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium. In an alternative, the storage medium may be integrated into the processor. The processor and the storage medium can reside in an ASIC. The ASIC can reside in a user terminal. In an alternative, the processor and the storage medium can reside as discrete components in a user terminal.

[0131] In one or more exemplary embodiments, the described functionality can be implemented in hardware, software, firmware, or any combination thereof. If implemented in software as a computer program product, the functions can be stored on or transmitted via a computer-readable medium as one or more instructions or code. The computer-readable medium includes both a computer storage medium and a communication medium including any medium that facilitates transfer of a computer program from one place to another. The storage medium can be any available medium that can be accessed by a computer. By way of example and not limitation, such computer-readable medium can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a web site, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. As used herein, disk and disc include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable medium.

Claims

1. A computer color matching method for blended fabrics, comprising the following steps: Obtain the basic information of the standard blended color sample; wherein, the basic information of the standard blended color sample includes the first single-component fiber type, the first single-component fiber content, the second single-component fiber type, the second single-component fiber content, the color difference threshold of the standard blended color sample, and the reflectance value of the standard blended color sample; Obtain 100% first single-component blank fabric and 100% second single-component blank fabric, and dye the 100% first single-component blank fabric and 100% second single-component blank fabric respectively with dyes of corresponding dye types according to different concentration grades, so as to obtain 100% first single-component basic color samples, 100% second single-component basic color samples, and the corresponding reflectance values of 100% first single-component basic color samples and 100% second single-component basic color samples; Automatically match the color of the 100% first single-component blank fabric based on the color difference threshold of the standard blended color sample, the reflectance value of the standard blended color sample, and the reflectance value of the 100% first single-component basic color sample to obtain the first single-component basic color sample formula, and then convert the first single-component basic color sample formula into the first single-component color sample formula in the blended blank fabric according to the proportion of the first single-component fiber content in the standard blended color sample; Use the first single-component color sample formula to dye the blended blank fabric, 100% first blank fabric, and 100% second blank fabric in the same bath to obtain blended semi-color samples, first single-component color samples, and second single-component color samples; Detect the reflectance values corresponding to the first single-component color sample and the second single-component color sample respectively, and calculate the reflectance value of the color presented on the first single-component fiber in the blended blank fabric according to the reflectance values corresponding to the first single-component color sample and the second single-component color sample; Calculate the first color difference between the reflectance value of the color presented on the first single-component fiber in the blended blank fabric by the first single-component color sample formula and the standard blended color sample, and then perform iterative color correction on the first single-component color sample according to the first color difference to obtain the first single-component color correction formula that meets the color difference threshold of the standard blended color sample; Calculate the reflectance value of the color presented on the whole blended blank fabric by the first single-component color correction formula that meets the color difference threshold of the standard blended color sample according to the reflectance value of the color presented on the first single-component fiber in the blended blank fabric by the first single-component color correction formula that meets the color difference threshold of the standard blended color sample; Calculate the second single-component dyeing formula in the blended semi-color sample according to the reflectance value of the color presented on the whole blended blank fabric by the first single-component color correction formula that meets the color difference threshold of the standard blended color sample, and use the calculated second single-component dyeing formula to dye the blended semi-color sample dyed with the first single-component color correction formula that meets the color difference threshold of the standard blended color sample to obtain the blended actual color sample; Detect the reflectance value of the blended actual color sample, and calculate the second color difference between the blended actual color sample and the standard blended color sample according to the reflectance value of the blended actual color sample; Perform color correction on the second single-component dyeing formula according to the second color difference to obtain the blended actual color sample formula that meets the color difference threshold of the standard blended color sample, and complete the color matching of the blended fabric.

2. The computer color matching method for blended fabrics according to claim 1, characterized in that, The blended blank fabric contains two types of single-component fibers; among them, the single-component fiber types include cotton, polyester, nylon, wool, and spandex.

3. The computer color matching method for blended fabrics according to claim 1, characterized in that The first single-component color sample formula contains dyes with various different concentrations; among them, after the computer color matching method obtains the color difference threshold of the standard blended color sample, the color difference threshold of the standard blended color sample, and the reflectance value of the 100% first single-component base color sample, the computer color matching software is used to automatically match the color of the 100% first single-component base color sample to obtain the first single-component base color sample formula, and then the first single-component base color sample formula is converted into the first single-component color sample formula in the blended blank fabric according to the proportion of the first single-component fiber content in the standard blended color sample; among them, the computer color matching method for blended fabrics converts the first single-component base color sample formula into the first single-component color sample formula in the blended blank fabric corresponding to the proportion of the first single-component fiber content through the following formula: ； Among them, represents the content of the first single-component fiber in the blended blank fabric, n represents the number of dyes. Represents the first single-component base color sample formula corresponding to 100% of the first single-component blank fabric, Indicates the first single-component color sample formula in the blended blank fabric, Indicates the corresponding concentration of the nth dye in the 100% first single-component basic color sample formula ​ 4. The computer color matching method for blended fabrics according to claim 3, characterized in that, When the computer color matching method for blended fabrics uses the first single-component color sample formula to perform co-bath dyeing on the blended blank fabric, the 100% first single-component blank fabric, and the 100% second single-component blank fabric respectively, the usage amount of the 100% first single-component blank fabric, the usage amount of the 100% second single-component blank fabric, and the usage amount of the first single-component dye are determined according to the content of the first single-component fiber in the blended blank fabric; among them, when the usage amount of the blended blank fabric is represented as X, The calculation formula for the amount of the first blank fabric is as follows: ; The calculation formula for the amount of the second blank fabric is as follows: ; The calculation formula for the dosage of the first single-component dye is as follows: .

5. The computer color matching method for blended fabrics according to claim 1, wherein After the computer color matching method for blended fabrics detects the reflectance values corresponding to the first single-component color sample and the second single-component color sample, the reflectance values corresponding to the first single-component color sample and the second single-component color sample are converted into the K / S value of the first single-component color sample and the K / S value of the second single-component color sample, and then the K / S value of the color presented on the first single-component fiber in the blended blank fabric by the first single-component color sample formula is calculated according to the K / S value of the first single-component color sample and the K / S value of the second single-component color sample. Finally, the K / S value of the color presented on the first single-component fiber in the blended blank fabric by the calculated first single-component color sample formula is converted into the reflectance value of the color presented on the first single-component fiber in the blended blank fabric by the first single-component color sample formula; among them, the computer color matching method for blended fabrics calculates the K / S value of the color presented on the first single-component fiber in the blended blank fabric by the first single-component color sample formula through the following formula: ； Among them, represents the first single-component color sample formula the K / S value of the color presented on the first single-component fiber in the blended blank fabric represents the K / S value of the first single-component color sample, represents the K / S value of the second single-component color sample, Represents the K / S value of 100% second single-component blank fabric.

6. The computer color matching method for blended fabrics according to claim 1, wherein The computer color matching method for blended fabrics calculates the first color difference value between the reflectance value of the color presented on the first single-component fiber in the blended blank fabric by the first single-component color sample formula and the standard blended color sample. After that, by comparing the first color difference value with the color difference threshold of the standard blended color sample it is determined whether it is necessary to iteratively modify the color of the first single-component color sample formula; among them, When the first color difference value is less than or equal to the color difference threshold of the standard blended color sample , there is no need to correct the color of the first single-component color sample formula; at this time, the corrected color formula of the first single-component color sample is the first color difference value less than or equal to the color difference threshold of the standard blended color sample corresponding to the first single-component color sample formula; When the first color difference value is greater than the color difference threshold automated color matching is performed on the difference between the reflectance value of the color presented on the first single-component fiber in the blended fabric and the reflectance value of the standard blended color sample to obtain a color correction formula for the first single-component color sample. Then, the blended blank fabric, the 100% first single-component first blank fabric, and the 100% second single-component blank fabric are dyed again according to the color correction formula for the first single-component color sample, and the new first color difference value is calculated. Then, it is determined whether the calculated new first color difference value is less than or equal to the standard blended color difference threshold; if so, the iterative color correction of the first single-component color sample is completed to obtain the color correction formula for the first single-component color sample; if not, the color correction formula for the first single-component color sample is continuously iteratively calculated.

7. The computer color matching method for blended fabrics according to claim 1, characterized in that, After the computer color matching method for blended fabrics obtains the first single-component color correction formula that meets the color difference threshold of the standard blended color sample, the reflectance value of the color presented by the first single-component color correction formula on the first single-component fiber in the blended blank fabric is converted into the K / S value of the color presented by the first single-component color correction formula on the first single-component fiber in the blended blank fabric. Then, according to the K / S value of the color presented by the first single-component color correction formula on the first single-component fiber in the blended blank fabric, the K / S value of the color presented by the first single-component color correction formula on the whole blended blank fabric is calculated. Finally, the K / S value of the color presented by the first single-component color correction formula on the whole blended blank fabric is converted into the reflectance value of the color presented by the first single-component color correction formula on the whole blended blank fabric; wherein, the computer color matching method for blended fabrics calculates the K / S value of the color presented by the first single-component color correction formula on the first single-component fiber in the blended blank fabric through the following formula: ； Among them, represents the K / S value of the color presented by the first single-component color correction formula that meets the color difference threshold of the standard blended color sample on the overall blended blank fabric. It represents the K / S value of the color presented on the first single-component fiber in the blended blank fabric by the first single-component color correction formula that meets the color difference threshold of the standard blended color sample. represents the K / S value of the 100% first-component blank fabric, Represents the content of the first single-component fiber in the blended blank fabric, Indicates the K / S value of the blended blank fabric.

8. The computer color matching method for blended fabrics according to any one of claims 5 or 7, characterized in that, The computer color matching method for blended fabrics converts the K / S value into the reflectance value through the following formula: ， Wherein, R represents the reflectance value under the main light source.

9. The computer color matching method for blended fabrics according to claim 7, wherein After obtaining the K / S value of the color presented on the overall blended blank fabric by the first single-component color correction formula that meets the color difference threshold of the standard blended color sample in the computer color matching method for blended fabrics, the initial concentration value formula corresponding to the second single-component dyeing formula is calculated according to the K / S value of the color presented on the overall blended blank fabric by the first single-component color correction formula that meets the color difference threshold of the standard blended color sample , and then through the iterative correction of the initial concentration value formula , the corrected concentration value formula that meets the color difference threshold of the standard blended color sample is obtained ; wherein, the computer color matching method for blended fabrics calculates the initial concentration value formula through the following formula : ， ； Among them, represents the initial concentration formula of the second single-component dyeing formula in the blended semi-color sample, Indicates the weight coefficients at different wavelengths, Indicates the rate at which the color reflectance value of the standard blended color sample changes with the K / S value, The K / S value representing the color of the standard blended color sample The K / S value representing the color presented by the first single-component color correction formula that meets the color difference threshold of the standard blended color sample on the overall blended blank fabric, Represents the K / S value of the unit concentration of the dye corresponding to the second single-component fiber type.

10. The computer color matching method for blended fabrics according to claim 9, characterized in that, The initial concentration value formula of the second single-component dyeing formula is calculated by the computer color matching method for blended fabrics After that, the theoretical color difference value between the reflectance value corresponding to the initial concentration formula and the reflectance difference value of the color presented on the overall blended blank fabric by the standard blended color sample and the first single-component color correction formula that meets the color difference threshold is calculated. It is judged whether to iteratively correct the initial concentration value formula of the second single-component dyeing formula by judging whether the calculated theoretical color difference value meets the color difference threshold of the standard blended color sample; among them, If the theoretical color difference value meets the color difference threshold of the standard blended color sample, there is no need to correct the initial concentration value formula for correction; at this time, the corrected concentration formula is the initial concentration value formula ; If the theoretical color difference value does not meet the color difference threshold of the standard blended color sample, then for the initial concentration value formula make corrections, and then determine whether the theoretical color difference value between the reflectance value corresponding to the corrected concentration value formula and the reflectance difference of the color presented on the overall blended blank fabric by the standard blended color sample and the first single-component color correction formula that meets the color difference threshold meets the color difference threshold of the standard blended color sample; if so, use the corrected concentration value formula as the corrected concentration formula ; if not, then continue to make corrections to the initial concentration value formula until a corrected concentration formula that meets the color difference threshold of the standard blended color sample is obtained .

11. The computer color matching method for blended fabrics according to claim 9, characterized in that, The computer color matching method for blended fabrics calculates the formula for the corrected concentration value corresponding to the second single component through the following formula : ； ； Among them, represents the corrected concentration formula of the second single component in the blended semi-color sample, T represents the change in the concentration of the corresponding type of dye of the second single-component fiber when the reflectance changes slightly. Indicates the reflectance value corresponding to the initial concentration formula of the second single component in the blended semi-color sample. Represents the reflectance value of the standard blended color sample, Indicates the reflectance value of the color presented by the first single-component color correction formula that meets the color difference threshold on the overall blended blank fabric. Indicates the corrected concentration formula of the second single component in the blended semi-color sample The corresponding concentration of the nth dye in 12. The computer color matching method for blended fabrics according to claim 9, wherein, After calculating the reflectance value of the blended actual dyed sample by the computer color matching method for blended fabrics and calculating the second color difference between the blended actual dyed sample and the standard blended color sample, by comparing the second color difference with the color difference threshold of the standard blended color sample to determine whether it is necessary to iteratively modify the second single-component dyeing formula; among them, When the second color difference value is less than or equal to the color difference threshold of the standard blended color sample then there is no need to perform color correction, and the color matching of the blended fabric is completed; When the second color difference value is greater than the color difference threshold then, according to the difference between the reflectance values of the blended actual dyed sample and the standard blended color sample, the reflectance value of the standard blended color sample is adjusted according to the reflectance value adjustment formula of the standard blended color sample, and then the second single component in the blended semi-color sample is recalculated to obtain the color correction formula for the second single component. Then, the blended semi-color sample dyed with the color correction formula for the first single component that meets the color difference threshold is redyed according to the color correction formula for the second single component obtained by the recalculation to obtain the blended actual dyed sample, and the new second color difference value is calculated. Then, it is judged whether the newly calculated second color difference value is less than or equal to the color difference threshold; if so, the iterative color correction of the second single component color sample is completed to obtain the color correction formula; if not, the color dyeing formula for the second single component is continuously iteratively calculated.

13. The computer color matching method for blended fabrics according to claim 12, characterized in that, The adjustment formula for the reflectance value of the standard blended color sample is as follows: ， Among them, represents the reflectance value of the adjusted standard blended color sample, represents the reflectance value of the standard blended color sample before adjustment, Indicates the reflectance value of the blended solid dyed sample.

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