CN115905647A - Method and system for obtaining dye formula of fabric color - Google Patents
Method and system for obtaining dye formula of fabric color Download PDFInfo
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Abstract
The invention discloses a method and a system for obtaining a dye formula of fabric color, which relate to the field of dye formula selection, and the method comprises the following steps: determining the colors of various fabrics, generating a color database according to the dye formula information and the color characteristic value information of each fabric color, and manufacturing a real object color card; obtaining a color sample to be tested, and obtaining a first screening color reference sample according to the color characteristic value information of the color sample to be tested and the total tolerance of the fabric color and the color sample to be tested; visually evaluating the physical color card corresponding to each first-time screening color reference sample and the color sample to be tested, screening the physical color card with the color closest to the color sample to be tested, and determining a second-time screening color reference sample; and determining the optimal dye formula corresponding to the color sample to be detected from the second color reference sample by taking the lowest cost of the dye and the optimal color fastness as the standard. The invention can efficiently find the optimal dye formula with the lowest dyeing cost consumption and the highest various fastness indexes in the shortest time.
Description
Technical Field
The invention relates to the field of dye formula acquisition, in particular to a method and a system for acquiring a dye formula of fabric color.
Background
The biggest trouble of the current textile fabrics is the color stability and the cost consumption. Dye selection and staining problems are important factors contributing to this concern. Before mass production of each color on a large machine table, a small sample is printed before dyeing to determine a color matching mode, the accuracy of a first cylinder dye prescription, the feasibility of dyeing process parameters, the budget of dye cost and whether the ultimate fastness index of the fabric is met. At present, the repeated repeatability of the small sample printing work before dyeing, the long production period of products and the uncontrollable property of dye cost and dyeing quality cause a great deal of waste of manpower, material resources and financial resources because a complete color system is not used as a reference basis.
Disclosure of Invention
The invention aims to provide a method and a system for obtaining a dye formula of a fabric color, which can efficiently and inexpensively obtain an optimal dye formula of the fabric color to be detected.
In order to achieve the purpose, the invention provides the following scheme:
a method for obtaining a dye formula of a fabric color, the method comprising:
determining m color systems, and generating n pieces of color information for each color system, wherein all the color information corresponding to all the color systems form m × n fabric colors;
generating a color database according to the dye formula information and the color characteristic L a b value information of each fabric color, and manufacturing a real object color card for each fabric color; each fabric color corresponds to a plurality of dye formula information;
obtaining a color sample to be tested, and obtaining a first screening color reference sample according to the color characteristic La b value information of the color sample to be tested and the total tolerance of the fabric color and the color sample to be tested;
visually evaluating the object color card corresponding to each first screening color reference sample and the color sample to be tested, screening the object color card with the color closest to the color sample to be tested, marking the object color card as a target object color card, and determining the fabric color corresponding to the target object color card as a second screening color reference sample;
and determining the optimal dye formula corresponding to the color sample to be detected from the dye formula information corresponding to all the second color reference samples by taking the lowest dye cost, the optimal color fastness to sunlight and the optimal color fastness to dry and wet rubbing as the standards.
Optionally, before generating the color database according to the dye formula information and the color feature L × a × b value information of each fabric color, the method further includes: and numbering each fabric color, wherein each fabric color number comprises an integral color system hue value, a specific hue value, a color lightness depth value and a color chroma shade value.
Optionally, the obtaining a first color reference sample for screening according to the color feature L a b value information of the color sample to be tested and the total tolerance between the fabric color and the color sample to be tested specifically includes:
determining a color characteristic value comparison interval according to the color characteristic L a b value information of the color sample to be detected; the color characteristic value contrast interval comprises a color characteristic L value contrast interval, a color characteristic a value contrast interval and a color characteristic b value contrast interval;
selecting the fabric color with the color characteristic L a b in the color characteristic value contrast interval from the color database, and marking as a target color reference sample;
and calculating the total tolerance of each target color reference sample and the color sample to be detected, and screening out all the target color reference samples with the total tolerance smaller than a preset value, namely the color reference samples screened for the first time.
Optionally, the selecting, from the color database, the fabric color whose color feature value L _ a _ b _ is in the color feature value contrast interval specifically includes:
and screening the fabric color of which the color characteristic L value is in the contrast interval of the color characteristic L value, the color characteristic a value is in the contrast interval of the color characteristic a value, and the color characteristic b value is in the contrast interval of the color characteristic b value in the color database.
Optionally, the calculating the total tolerance of each target color reference sample and the color sample to be detected specifically includes:
calculating the brightness difference, the saturation difference and the chromatic aberration of each target color reference sample and the color sample to be detected;
and calculating the total tolerance according to the brightness difference, the saturation difference and the chromatic aberration.
Optionally, one fabric color comprises i color matching modes; each color matching mode only corresponds to one color matching formula; each color matching formula is formed by matching j colors; wherein each of said colors corresponds to h dyeing recipes; each dyeing prescription corresponds to information of a dyeing process, dye cost, color fastness to sunlight and dry-wet rubbing; and each fabric color corresponds to j x h dye formula information.
The invention also provides a system for obtaining the dye formula of the fabric color, which comprises:
the fabric color determining module is used for determining m color systems and generating n pieces of color information for each color system, wherein all the color information corresponding to all the color systems form m × n fabric colors;
the color database and object color card construction module is used for generating a color database according to the dye formula information and the color characteristic La b value information of each fabric color and manufacturing an object color card for each fabric color; each fabric color corresponds to a plurality of dye formula information;
the primary screening module is used for obtaining a color sample to be tested and obtaining a primary screening color reference sample according to the color characteristic La b value information of the color sample to be tested and the total tolerance of the fabric color and the color sample to be tested;
the second screening module is used for visually evaluating the physical color card corresponding to each first screening color reference sample and the color sample to be tested, screening the physical color card with the color closest to the color sample to be tested, marking the physical color card as a target physical color card, and determining the fabric color corresponding to the target physical color card as the second screening color reference sample;
and the optimal dye formula determining module is used for determining the optimal dye formula corresponding to the color sample to be detected from the dye formula information corresponding to all the second color reference samples by taking the lowest dye cost, the optimal color fastness to sunlight and the optimal color fastness to dry and wet rubbing as standards.
Optionally, the first screening module specifically includes:
the comparison interval determining unit is used for determining a color characteristic value comparison interval according to the color characteristic L a b value information of the color sample to be detected; the color characteristic value contrast interval comprises a color characteristic L value contrast interval, a color characteristic a value contrast interval and a color characteristic b value contrast interval;
the interval screening unit is used for selecting the fabric color of which the color characteristic L A B value is in the color characteristic value contrast interval from the color database and marking as a target color reference sample;
and the total tolerance calculating and screening unit is used for calculating the total tolerance of each target color reference sample and the color sample to be detected, and screening all the target color reference samples with the total tolerance smaller than a preset value, namely the first-time screened color reference samples.
Optionally, the interval screening unit specifically includes:
and the interval screening subunit is used for screening the fabric color of which the color characteristic L value is in the contrast interval of the color characteristic L value, the color characteristic a value is in the contrast interval of the color characteristic a value, and the color characteristic b value is in the contrast interval of the color characteristic b value in the color database.
Optionally, the total tolerance calculating and screening unit specifically includes:
the total tolerance calculating subunit is used for calculating the brightness difference, the saturation difference and the chromatic aberration of each target color reference sample and the color sample to be detected; and calculating the total tolerance according to the brightness difference, the saturation difference and the chromatic aberration.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention discloses a method and a system for obtaining a dye formula of fabric color, wherein the method comprises the following steps: determining the colors of multiple fabrics, generating a color database according to the dye formula information and the color characteristic value information of each fabric color, and manufacturing a real object color card; obtaining a color sample to be tested, and obtaining a first screening color reference sample according to the color characteristic value information of the color sample to be tested and the total tolerance of the fabric color and the color sample to be tested; visually evaluating the physical color card corresponding to each first-time screening color reference sample and the color sample to be tested, screening the physical color card with the color closest to the color sample to be tested, and determining a second-time screening color reference sample; and determining the optimal dye formula corresponding to the color sample to be detected from the second color reference sample by taking the lowest cost of the dye and the optimal color fastness as the standards. The invention can efficiently find the optimal dye formula with the lowest dyeing cost consumption and the highest various fastness indexes in the shortest time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flow chart of a method for obtaining a dye formula of a fabric color according to embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of a method for obtaining a dye formula of a fabric color according to embodiment 1 of the present invention;
fig. 3 is a schematic diagram of a physical color chart provided in embodiment 1 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a method and a system for obtaining a dye formula of a fabric color, which solve the problems of complicated and repeated work flow and technical pain and can efficiently find the optimal dye formula with the lowest dyeing cost consumption and the highest various fastness indexes in the shortest time. Provides powerful innovation basis for shortening the production period of products, stabilizing the quality, reducing the production cost and reducing the repeated work of printing small samples before dyeing.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.
As shown in fig. 1 and 2, the present embodiment provides a method for obtaining a dye formula of a fabric color, the method includes:
s1: determining m color systems, and generating n pieces of color information for each color system, wherein all the color information corresponding to all the color systems form m × n fabric colors.
For example, 640 (m × n) popular fashionable blended fabric colors with high efficiency and low consumption, high quality and low price obtained according to the dyeing-color matching-color mixing-drawing-spinning-weaving-finishing-finished product flow are produced according to the color system (m = 8) of 1 gray, 2 m, 3 m, 4 g, 5g, 6 g, 7 g, 8 g and 8 h of a large machine. Each color system has 80 (n = 80) color information. The color information includes dye information and color characteristic information. The 640 pieces of fabric are based on the internal control standard of enterprises, and have the standards of high efficiency, low consumption, high market turnover rate and fashion.
Before the step S2, each fabric color is numbered, and each fabric color number includes an overall color system hue value, a specific hue value, a color lightness shade value and a color chroma shade value.
The purpose of numbering the fabric colors is to facilitate color management, and the numerical sequence in the numbering indicates the color system, specific hue, lightness and chroma of the colors.
Color numbering: the first digit represents the whole color system hue, the second digit represents the specific hue, the third digit represents the lightness depth, and the 4 th letter represents the chroma shade of the color.
When all the fabric colors are numbered, the hue value of the whole color system, the specific hue value, the lightness value and the chroma value of the color are required to be numbered one by one according to the numerical value from small to large. For example, the overall hue values of all the fabric colors are numbered from small to large, then the specific hue values of all the fabric colors are numbered from small to large, and so on, the lightness and darkness values and the chroma and darkness values are numbered.
S2: and generating a color database according to the dye formula information and the color characteristic L a b value information of each fabric color, and manufacturing a real object color card for each fabric color.
And (3) summarizing multiple groups of dyeing-color matching-color mixing and dye associated information (dye formula information) for each fabric color by a large machine.
And testing the tristimulus values X, Y and Z of each fabric color corresponding to the serial numbers, and calculating the color characteristic values L, a, b (brightness values L, red and blue values a and yellow and green values b of the color) to obtain the color characteristic value information.
And inputting the information of the color dye and the information of the color characteristic L a b into a computer to establish a color database (a color management system).
For example, 640 pieces of fabric are made into a physical color card. Each fabric color corresponds to one color card and one color number. And establishing a complete set of color system from the color entity sample to the dye information and the color characteristic information by combining a color management system.
And each fabric color corresponds to a plurality of dye formula information. One fabric color comprises a mode of matching i colors; each color matching mode only corresponds to one color matching formula; each color matching formula is formed by blending j colors; wherein each of said colors corresponds to h dyeing recipes; each dyeing prescription corresponds to information of a dyeing process, dye cost, color fastness to sunlight and color fastness to dry and wet rubbing; and each fabric color corresponds to j × h dye formula information.
As shown in figure 3, the color real object color card has the characteristics of width 15cm, length 21cm, thickness 1mm, each color fabric has the characteristics of square of 10cm and 10cm, in order to make the fabric flat and beautiful, the periphery of the fabric is fixed by masking tape, and is cut into the square of 10cm and 10cm by lace scissors, and then the fabric is stuck to the position 6cm away from the upper edge of the color card, and a space of length 15cm and width 6cm is reserved on the upper edge of the color card, so that the color system category, the number, the blending content, the yarn count and the production time of the fabric color are marked.
S3: and obtaining a color sample to be tested, and obtaining a first color screening reference sample according to the color characteristic L a b value information of the color sample to be tested and the total tolerance of the fabric color and the color sample to be tested.
Wherein, step S3 specifically includes:
s31: determining a color characteristic value comparison interval according to the color characteristic L a b value information of the color sample to be detected; the color characteristic value contrast interval comprises a color characteristic L value contrast interval, a color characteristic a value contrast interval and a color characteristic b value contrast interval.
Firstly, respectively setting minimum contrast intervals for the L value, a value and b value, specifically, setting the L = L of the color sample to be measured 0 、a*＝a 0 、b*＝b 0 (ii) a Minimum interval of [0.95L ] 0 ，1.05L 0 ]A is [0.95a ] in the minimum interval 0 ，1.05a 0 ]B minimum interval of [0.95b ] 0 ，1.05b 0 ]。
S32: and selecting the fabric color with the color characteristic L a b in the color characteristic value contrast interval from the color database, and marking as a target color reference sample.
And the color L, a, b, is within the interval and can be used as the reference information of the color sample to be measured. The minimum interval value of the brightness difference delta L between the color sample to be tested and the color sample of the numbered fabric is [ -0.05, +0.05], the minimum interval value of the saturation difference delta C is [ -0.225, +0.2255], and the minimum interval value of the color difference delta H is [ -0.17, +0.17]. All the obtained color samples with the total tolerance DE value less than or equal to 0.2 can be used as first screening color reference samples of the color samples to be detected.
Wherein, step S32 specifically includes:
and screening out fabric colors of which the color characteristic L is in a contrast interval of the color characteristic L, the color characteristic a is in a contrast interval of the color characteristic a, and the color characteristic b is in a contrast interval of the color characteristic b.
S33: and calculating the total tolerance of each target color reference sample and the color sample to be detected, and screening out all the target color reference samples with the total tolerance smaller than a preset value, namely the color reference samples screened for the first time.
Wherein, the step S33 of calculating the total tolerance specifically includes:
calculating the brightness difference, the saturation difference and the chromatic aberration of each target color reference sample and the color sample to be detected; and calculating the total tolerance according to the brightness difference, the saturation difference and the chromatic aberration.
The tolerance DE = { Δ L/(I × S) L )] 2 +[ΔC/(C×S C )] 2 +(ΔH/S H ) 2 } 1/2 In the color difference calculation formula, delta L, delta C and delta H are the brightness difference, the saturation difference and the color difference between a standard sample and a sample which are calculated by a CIELAB color difference formula, and I and C in the formula are two coefficients for adjusting the relative width capacity of the brightness and the saturation; s. the L Is a brightness weight factor; s C Is a chroma weight factor; s. the H Is a hue weight factor.
When the first color reference sample is screened according to the total tolerance, the color difference rating between the fabric color and the color sample to be tested can be determined, and the color difference rating is evaluated according to the CMC total color difference DE value and a corresponding level comparison table, as shown in Table 1.
Table 1:1CMC (1:1) Grading relation between total color difference DE value of color difference type and color difference
And when the DE value is less than or equal to 0.2, the color difference between the color reference sample and the sample to be detected in the first screening is 5 levels. Therefore, the fabric color with the color difference of 5 levels with the color sample to be detected can also be used as the first screening color reference sample. The results of the first screening of the color reference samples for color difference rating and total tolerance determination are the same, but for two different expressions.
S4: and visually evaluating the physical color card corresponding to each first-time screening color reference sample and the color sample to be tested, screening the physical color card with the color closest to the color sample to be tested, marking as a target physical color card, and determining the fabric color corresponding to the target physical color card as a second-time screening color reference sample.
And sequentially carrying out secondary visual evaluation on all the first screened color reference samples with 5-grade color difference with the color sample to be detected and the color sample to be detected according to the color numbers.
The visual evaluation criteria were: lighting criteria, environmental criteria, observer criteria, and observed person criteria.
The standard of the light source is as follows: a D65 light source with the color temperature of 6500K + 200k.
The environmental standards are: the color of the observation platform and the light source environment needs to be Munsell N6-N7 neutral gray, and the inclination angle of the observation platform and the light source platform is 45 degrees.
The observed criteria were: the observation platform is arranged in the middle of the light source, all the first-time screening color reference samples are required to be partially overlapped and tightly arranged on the observation platform in the same direction, and the color samples to be detected are arranged on the observation platform for dynamic comparison.
The observer criteria were: the method has certain empirical technology, is sensitive to color, and an observer needs to dynamically perform visual evaluation at multiple angles, so that the material object fabric (material object color card) with the color closest to the sample to be detected is preferably selected.
S5: and determining the optimal dye formula corresponding to the color sample to be detected from the dye formula information corresponding to all the second color reference samples by taking the lowest cost of the dye, the optimal color fastness to sunlight and the optimal color fastness to dry and wet rubbing as standards.
In this example, a method for establishing a color system with high efficiency and low consumption to optimize a dye is disclosed. Relates to the technical field of efficient, quick and low-consumption fabric color system and establishment of preferable dye dyeing performance according to the color system. Can be matched with the color matching mode and the optimal dye formula with the lowest dye cost and the highest various fastness indexes in the shortest time and high efficiency. The production period of the product can be shortened, the quality is stabilized, the production cost is reduced, and the repeatability of the small sample printing before dyeing is reduced.
Several examples of applying the method of the present embodiment are given below:
in case one: order for new materials for warm doctor: blend content 60% cotton/40% lyocell, yarn count: 32Ne, order quantity 10000 m, and overall color system: red color system, specific color hue: light reddish orange color, and the light fastness is required to reach 5 grade. The three stimulation values X, Y, Z of the customer color samples are tested, L × =54.62, a × =39.25, b × =6.84, the minimum L ×, interval is set as [51.89, 57.35], the minimum a ×, interval is set as [37.28, 41.21], the minimum b ×, interval is set as [6.50,7.18], and the color numbers 5322, 5331, 5324, 5330, 5321 with L ×, b values in the interval are obtained in the color management system (color database), and all 5 colors can be used as reference information of the color to be tested. And two numbered colors 5322 and 5321 with the total tolerance DE value less than or equal to 0.2 are obtained according to the minimum interval [ -0.05, +0.05] of the brightness difference DeltaL, the minimum interval [ -0.225, +0.225] of the saturation difference DeltaC, the minimum interval [ -0.17, +0.17] of the color difference DeltaH and the numbered color samples. Can be used as a first reference sample of the color to be detected (a first color reference sample for screening). And determining the color sample with the number 5322 as the optimal color reference sample by combining color card physical sample comparison.
Clicking number 5322 in the color information base randomly retrieves the corresponding color matching information:
original white cotton yellow cotton red lyocell
30％20％40％
The dyeing prescription of the color selection fiber has a plurality of dye compatibility choices, and the dye is preferably selected according to the order requirement.
There are two types of dye recipe selection information for red lyocell:
color fastness to rubbing: according to GBT3920-2008 color fastness to rubbing test.
Color fastness to sunlight o; according to GB/T8427-2019 color fastness to artificial light in a textile color fastness test: xenon arc (Xeon arc).
The red lyocell preferably selects the reactive dye formula information 1 according to the requirements of dye cost and light fastness, and the vat production dyeing process data information is as follows:
pretreatment: adding sodium carbonate Na at 30 deg.C 2 CO 3 3g/L, heating to 70 ℃, running for 10min, heating to 98 ℃, heating at the rate of 1 ℃/min, keeping the temperature for 40min, cooling to 30 ℃, emptying and washing.
The dyeing process comprises the following steps: adding sodium sulfate Na into the auxiliary jar 1 2 SO 4 15g/L of sodium carbonate Na 2 CO 3 Running at 1g/L for 30min, discharging into main cylinder, adding dye into auxiliary cylinder 2, running for 30min, discharging into main cylinder, heating to 80 deg.C at a heating rate of 0.5 deg.C/min, maintaining for 20min, and adding sodium carbonate Na 2 CO 3 5g/L is insulated for 30min, cooled, emptied and washed to 50 ℃.
Post-treatment color fixation: adding detergent Ivy R1g/L into the auxiliary cylinder, discharging into the main cylinder after running for 30min, heating to 60 deg.C, running for 15min, emptying, washing, and discharging.
There are two types of dye recipe selection information for yellow cotton:
the formula 1 of the reactive dye is preferably selected for the yellow cotton according to the cost information of the dye and the requirement of light fastness, and the dyeing process information of the yellow cotton is the same as that of red lyocell.
Color fastness to rubbing: according to GBT3920-2008 color fastness to rubbing test for textiles.
Color fastness to sunlight: according to GB/T8427-2019 color fastness to artificial light in textile color fastness test: xenon arc (Xeon arc).
Case two: jiangsu article order creation: blending content of sea wool 20%, cotton 30%, lyocell 50%, yarn count: 32Ne, order quantity 10000 m, and overall color system: green color system, specific color hue: deep blue green, and the wet rubbing fastness is required to reach 4 grades. And testing three stimulation values X, Y and Z of the client color samples, calculating L =19.55, a = -23.53 and b = -38.25, setting the minimum interval of L = -18.57 and 20.52, setting the minimum interval of a [ -24.70 and 22.35], setting the minimum interval of b [ -40.16 and 36.33], and obtaining 4 color numbers 6763, 6761, 6765 and 6764 of the L × a b value in the interval in the color management system, wherein the color numbers can be used as reference information of the color to be tested. And according to the brightness difference DeltaL minimum interval [ -0.05, +0.05] of the sample to be measured and the numbered color sample, the saturation difference DeltaC minimum interval [ -0.225, +0.225], the minimum interval [ -0.17, +0.17] of the color difference DeltaH, and the remaining two numbered colors 6763 and 6764 with the total tolerance DE value less than or equal to 0.2. Can be used as the first reference sample of the color to be measured. The color sample of reference number 6764 is designated as the best color reference sample in conjunction with the color chart physical sample comparison.
Clicking on number 67647 in the color information base randomly retrieves the corresponding color matching information:
original white Lyocell green cotton green sea wool
50％30％％20％
The dyeing prescription of the color-matching fiber has a plurality of dye compatibility choices, and the dye is preferably selected according to the order requirement. There are two types of dyeing recipe selection information for green sea wool:
color fastness to rubbing: according to GBT3920-2008 color fastness to rubbing test.
Color fastness to sunlight: according to GB/T8427-2019 color fastness to artificial light in textile color fastness test: xenon arc (Xeon arc).
The green sea wool preferably selects reactive dye formula information 1 according to dye cost information and rubbing fastness requirements, and the vat dyeing process data information is as follows:
the dyeing process comprises the following steps: at the beginning of 30 ℃, adding acetic acid HAC 1%, formic acid HCOOH 1%, defoaming agent FFA0.5% and leveling agent Albizzia B2% into an auxiliary cylinder 1, operating for 30min, then discharging into a main cylinder, adding dye into the auxiliary cylinder 2, operating for 30min, discharging into the main cylinder, heating to 70 ℃, heating to a rate of 0.8 ℃/min, operating for 10min, then heating to 98 ℃, heating to a rate of 0.8 ℃/min, keeping the temperature for 50min, then cooling, emptying and washing to 30 ℃.
And (3) post-treatment: adding sodium carbonate Na into the auxiliary cylinder 2 CO 3 Running at 5g/L for 30min, discharging into master cylinder, heating to 80 deg.C at a heating rate of 0.5 deg.C/min, maintaining for 20min, cooling, draining, washing, and heating to 50 deg.C. Adding 1% formic acid HCOOH into the auxiliary cylinder, operating for 30min, discharging into the main cylinder, operating for 10min, emptying, washing, and discharging.
There are two types of dye recipe selection information for green cotton:
the dry and wet rubbing fastness of the two groups of dye prescription information of the green cotton are the same, but the dyeing prescription information 1 is preferably selected according to the dye cost information. The vat dyeing process information is the same as that of the yellow cotton in the first example.
In conclusion, the method for establishing the color system with high efficiency and low consumption to optimize the dye can quickly find the color formula, shorten the proofing time, shorten the production period of products, save the cost of dyes and chemicals, stabilize the dyeing process and improve the fastness index.
Example 2
The invention provides a system for obtaining a dye formula of fabric color, which comprises:
the fabric color determining module T1 is configured to determine m color systems, and generate n pieces of color information for each color system, where all the color information corresponding to all the color systems constitute m × n fabric colors.
The color database and physical color card construction module T2 is used for generating a color database according to the dye formula information and the color characteristic La b value information of each fabric color and manufacturing a physical color card for each fabric color; and each fabric color corresponds to a plurality of dye formula information.
And the primary screening module T3 is used for obtaining a color sample to be tested and obtaining a primary screening color reference sample according to the color characteristic LaBbvalue information of the color sample to be tested and the total tolerance of the fabric color and the color sample to be tested.
And the second screening module T4 is used for performing visual evaluation on the physical color card corresponding to each first-time screening color reference sample and the color sample to be tested, screening the physical color card with the color closest to the color sample to be tested, recording the physical color card as a target physical color card, and determining the fabric color corresponding to the target physical color card as the second-time screening color reference sample.
And the optimal dye formula determining module T5 is used for determining the optimal dye formula corresponding to the color sample to be detected from the dye formula information corresponding to all the second color reference samples by taking the lowest cost of dyes, the optimal color fastness to sunlight and the optimal color fastness to dry and wet rubbing as standards.
The first screening module T3 specifically includes:
a comparison interval determination unit T31 configured to determine a color characteristic value comparison interval according to the color characteristic L a b value information of the color sample to be detected; the color characteristic value contrast interval comprises a color characteristic L value contrast interval, a color characteristic a value contrast interval and a color characteristic b value contrast interval.
And the interval screening unit T32 is used for selecting the fabric color with the color characteristic L a b value in the color characteristic value contrast interval from the color database and marking as the target color reference sample.
The interval screening unit T32 specifically includes:
and the interval screening subunit is used for screening the fabric color of which the color characteristic L value is in the contrast interval of the color characteristic L value, the color characteristic a value is in the contrast interval of the color characteristic a value, and the color characteristic b value is in the contrast interval of the color characteristic b value in the color database.
And the total tolerance calculating and screening unit T33 is used for calculating the total tolerance of each target color reference sample and the color sample to be detected, and screening all the target color reference samples with the total tolerance smaller than a preset value, namely the first-time screened color reference samples.
The total tolerance calculating and screening unit T33 specifically includes:
the total tolerance calculating subunit is used for calculating the brightness difference, the saturation difference and the chromatic aberration of each target color reference sample and the color sample to be detected; and calculating the total tolerance according to the brightness difference, the saturation difference and the chromatic aberration.
The emphasis of each embodiment is on the difference from the other embodiments, and the same and similar parts among the various embodiments can be referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the foregoing, the description is not to be taken in a limiting sense.
Claims (10)
1. A fabric color dye formula obtaining method is characterized by comprising the following steps:
determining m color systems, and generating n pieces of color information for each color system, wherein all the color information corresponding to all the color systems form m × n fabric colors;
generating a color database according to the dye formula information and the color characteristic L a b value information of each fabric color, and manufacturing a real object color card for each fabric color; each fabric color corresponds to a plurality of dye formula information;
obtaining a color sample to be tested, and obtaining a first color screening reference sample according to the color characteristic L a b value information of the color sample to be tested and the total tolerance of the fabric color and the color sample to be tested;
visually evaluating the physical color card corresponding to each first-time screening color reference sample and the color sample to be tested, screening the physical color card with the color closest to the color sample to be tested, marking the physical color card as a target physical color card, and determining the fabric color corresponding to the target physical color card as a second-time screening color reference sample;
and determining the optimal dye formula corresponding to the color sample to be detected from the dye formula information corresponding to all the second color reference samples by taking the lowest dye cost, the optimal color fastness to sunlight and the optimal color fastness to dry and wet rubbing as the standards.
2. The method of claim 1, wherein prior to generating the color database based on the dye formula information and the color feature L a b value information for each of the fabric colors, further comprising: and numbering each fabric color, wherein each fabric color number comprises an integral color system hue value, a specific hue value, a color lightness depth value and a color chroma shade value.
3. The method according to claim 1, wherein the obtaining a first color reference sample for screening according to the color characteristic L a b value information of the color sample to be tested and the total tolerance between the fabric color and the color sample to be tested comprises:
determining a color characteristic value comparison interval according to the color characteristic L a b value information of the color sample to be detected; the color characteristic value contrast interval comprises a color characteristic L value contrast interval, a color characteristic a value contrast interval and a color characteristic b value contrast interval;
selecting the fabric color with the color characteristic L a b value in the color characteristic value contrast interval from the color database, and marking as a target color reference sample;
and calculating the total tolerance of each target color reference sample and the color sample to be detected, and screening out all the target color reference samples with the total tolerance smaller than a preset value, namely the color reference samples screened for the first time.
4. The method according to claim 3, wherein the selecting the fabric color with the color feature L x a x b value in the color feature value contrast interval from the color database specifically comprises:
and screening the fabric color of which the color characteristic L value is in the contrast interval of the color characteristic L value, the color characteristic a value is in the contrast interval of the color characteristic a value, and the color characteristic b value is in the contrast interval of the color characteristic b value in the color database.
5. The method according to claim 3, wherein the calculating the total tolerance of each of the target color reference samples and the color sample to be tested comprises:
calculating the brightness difference, the saturation difference and the chromatic aberration of each target color reference sample and the color sample to be detected;
and calculating the total tolerance according to the brightness difference, the saturation difference and the chromatic aberration.
6. The method of claim 1 wherein one of said fabric colors comprises i color matching patterns; each color matching mode only corresponds to one color matching formula; each color matching formula is formed by blending j colors; wherein each of said colors corresponds to h dyeing recipes; each dyeing prescription corresponds to information of a dyeing process, dye cost, color fastness to sunlight and color fastness to dry and wet rubbing; and each fabric color corresponds to j × h dye formula information.
7. A system for obtaining a dye formula of a fabric color is characterized by comprising:
the fabric color determining module is used for determining m color systems and generating n pieces of color information for each color system, wherein all the color information corresponding to all the color systems form m × n fabric colors;
the color database and physical color card construction module is used for generating a color database according to the dye formula information and the color characteristic La b value information of each fabric color and manufacturing a physical color card for each fabric color; each fabric color corresponds to a plurality of dye formula information;
the first screening module is used for obtaining a color sample to be tested and obtaining a first screening color reference sample according to the color characteristic La b value information of the color sample to be tested and the total tolerance of the fabric color and the color sample to be tested;
the second screening module is used for performing visual evaluation on the object color card corresponding to each first screening color reference sample and the color sample to be tested, screening the object color card with the color closest to the color sample to be tested, marking the object color card as a target object color card, and determining the fabric color corresponding to the target object color card as a second screening color reference sample;
and the optimal dye formula determining module is used for determining the optimal dye formula corresponding to the color sample to be detected from the dye formula information corresponding to all the second color reference samples by taking the lowest cost of dyes, the optimal color fastness to sunlight and the optimal color fastness to dry and wet rubbing as standards.
8. The system of claim 7, wherein the first screening module specifically comprises:
the comparison interval determining unit is used for determining a color characteristic value comparison interval according to the color characteristic L a b value information of the color sample to be detected; the color characteristic value contrast interval comprises a color characteristic L value contrast interval, a color characteristic a value contrast interval and a color characteristic b value contrast interval;
the interval screening unit is used for selecting the fabric color of which the color characteristic L A B value is in the color characteristic value contrast interval from the color database and marking as a target color reference sample;
and the total tolerance calculating and screening unit is used for calculating the total tolerance of each target color reference sample and the color sample to be tested, and screening all the target color reference samples with the total tolerance smaller than a preset value, namely the first screening color reference samples.
9. The system according to claim 8, wherein the interval filtering unit specifically includes:
and the interval screening subunit is used for screening the fabric color of which the color characteristic L value is in the contrast interval of the color characteristic L value, the color characteristic a value is in the contrast interval of the color characteristic a value, and the color characteristic b value is in the contrast interval of the color characteristic b value in the color database.
10. The system of claim 8, wherein the total tolerance calculation and filtering unit comprises:
the total tolerance calculating subunit is used for calculating the brightness difference, the saturation difference and the chromatic aberration of each target color reference sample and the color sample to be detected; and calculating the total tolerance according to the brightness difference, the saturation difference and the chromatic aberration.
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| CN202211694177.7A CN115905647A (en) | 2022-12-28 | 2022-12-28 | Method and system for obtaining dye formula of fabric color |
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| CN202211694177.7A CN115905647A (en) | 2022-12-28 | 2022-12-28 | Method and system for obtaining dye formula of fabric color |
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