CN109402924A - A method of improving dyeing process accuracy - Google Patents

A method of improving dyeing process accuracy Download PDF

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Publication number
CN109402924A
CN109402924A CN201811628035.4A CN201811628035A CN109402924A CN 109402924 A CN109402924 A CN 109402924A CN 201811628035 A CN201811628035 A CN 201811628035A CN 109402924 A CN109402924 A CN 109402924A
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China
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curve
ultraviolet
dyestuff
dyeing
dyeing process
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CN201811628035.4A
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CN109402924B (en
Inventor
赵强强
沈峰
沈一峰
杨雷
孙洁
姜建堂
秦寒
赵晓
彭卉
刘杨
郦少奇
雷曼君
杨黎辉
鲁施佳
崔牙牙
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Shangyu Industrial Technology Research Institute of ZSTU
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Shangyu Industrial Technology Research Institute of ZSTU
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06BTREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/20Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

The invention discloses a kind of methods for improving dyeing process accuracy, comprising: establishes the ultraviolet-visible absorption spectroscopy curve master database of different dyes unit concentration;Dyestuff is weighed according to process recipe, after material, measures actual absorption spectrum;According to the ratio of dyestuff each in dyeing recipe and the additive property of ultraviolet absorption curve, theoretical ultra-violet absorption spectrum is obtained;Compare the correlation between theoretical absorption spectrum and actual absorption spectrum, when relevance parameter is greater than 0.95, for the ratio between absorption values in 0.98-1.03, then dyeing recipe is accurate.When correlation is less than 0.95, then need to be modified concentration factor when the ratio between absorption values are less than 0.98.The method calculating that the present invention improves dyeing process accuracy is simple and convenient to operate, and can be accurately controlled by what dyestuff was added, be reduced the number of dyeing Shi Xiuse, is improved production efficiency, is reduced production cost.

Description

A method of improving dyeing process accuracy
Technical field
The present invention relates to dyeing process technical fields, and in particular to a method of improve dyeing process accuracy.
Background technique
Dyeing process is one of the most frequently used technique in fabric production.But process is longer, cumbersome when dyeing process, to life The control and management for producing process bring more difficulty.The control of production process is always the weight of dyeing and printing process enterprises pay attention Point, and reduce the key of dyeing process energy consumption and discharge of wastewater.
Control in dyeing course, in addition to processing flow and process regulation, the control at dye addictive end is also Produce the key of control.The control of auxiliary agent can be realized by quantitative adjuvant systems, made in more dyeing and printing process enterprise With.And most of dyestuffs are solid, corresponding automatic weighing system higher cost, accuracy when for artificial (manual) weighing It controls particularly critical.Therefore, the processing characteristic of combination dye studies the side that the production control before dyeing improves dyeing accuracy Method has great importance and is worth to the control in processing enterprise.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of method for improving dyeing process accuracy, this method operations Simply, low in cost, the requirement to equipment is low;Income approach accuracy is high, accurate during effective enhancing dyeing process Property provide dyeing process quality.
A method of improving dyeing process accuracy, comprising the following steps:
(1) common dyestuff in plant produced is selected, the ultraviolet-visible absorption spectroscopy curve under various concentration is acquired, is established The ultraviolet-visible absorption spectroscopy curve master database of different dyes unit concentration;
(2) when drawing a design or when plant produced is processed, dyestuff is weighed according to process recipe, after material is uniform, acquires dye liquor, it is dilute After releasing, practical ultraviolet-visible absorption spectroscopy curve is measured;
(3) according to the ratio of dyestuff each in the dyeing recipe actually used, and the UV, visible light obtained in conjunction with step (1) The additive property of absorption spectrum curve, the ultraviolet-visible absorption spectroscopy curve of different dyes unit concentration is multiplied by phase after concentration factor Add, obtains theoretical ultraviolet-visible absorption spectroscopy curve;
(4) reality that the theoretical ultraviolet-visible absorption spectroscopy curve that comparison step (3) obtains and step (2) obtain is ultraviolet can See the correlation between absorption spectrum curve, if relevance parameter is greater than 0.95, the ratio between absorption values are in 0.98-1.03 When, then dyeing recipe is accurate, can be produced with following process;If correlation is less than 0.95, the ratio between absorption values are less than 0.98 Shi Zexu is modified concentration factor, until relevance parameter is greater than 0.95, the ratio between absorption values in 0.98-1.03, than The concentration factor that more final concentration values and dyeing recipe calculate, increases corresponding dyestuff, implements dyeing, if absorption values The ratio between be greater than 1.03, then need to weigh dyestuff again.
A kind of method of raising dyeing process accuracy is applicable to direct dyes, acid dyes, activity dye In material, reducing dye, the dye of positive ion and disperse dyeing processing.
Plant produced can be used to draw a design with laboratory for a kind of method of raising dyeing process accuracy.
A kind of method of raising dyeing process accuracy can be applied in dyestuff automatic weighing system, thickener certainly In dynamic Weighing system.
In step (1), the range of various concentration is 0.01g/L~0.2g/L, further preferably 0.02g/L~0.10g/ L, most preferred various concentration be 0.02g/L, 0.03g/L, 0.04g/L, 0.05g/L, 0.06g/L, 0.07g/L, 0.08g/L, 0.09g/L, 0.10g/L.
The test scope of ultraviolet-visible absorption spectroscopy curve is 400-800nm, test interval 0.5nm.UV, visible light is inhaled The test temperature for receiving the curve of spectrum is 25-35 DEG C.
In step (2), the test scope of practical ultraviolet-visible absorption spectroscopy curve is 400-800nm, and test interval is 0.5nm.The test temperature of practical ultraviolet-visible absorption spectroscopy curve is 25-35 DEG C.
In step (3), the test scope of ultraviolet-visible absorption spectroscopy curve is 400-800nm, test interval 0.5nm. The absorption values of each test wavelength of ultraviolet-visible absorption spectroscopy curve are multiplied by concentration factor.
In step (4), calculated curve relevance parameter be Pearson correlation coefficients (Pearson Correlations), this Joseph Pearman related coefficient (Spearman Correlation), Kendall's correlations coefficient (Kendall Correlation).
Ultra-violet absorption spectrum is one of the important method of analysis of compounds concentration, is had with easy to operate, practical Point.The present invention utilizes the ultra-violet absorption spectrum characteristic of dyestuff, combines with production process control, by after weighing, ingredient The concentration analysis of solution realizes that the prediction of weighing result and initial formulation accuracy, realization come into effect before dyeing to mistake The control of journey.The accuracy that dye formulation can effectively be improved, reduce following process because toning caused by heating, cooling Journey.
Compared with prior art, the invention has the following beneficial effects:
(1) present invention is low in cost, and preparation method is simple, and the requirement to equipment is low, and operability is good;
(2) method of raising dyeing process accuracy of the invention is applicable to laboratory, in process of factory production, can mention The controllability of high production process, conducive to the management to dyeing production.
(3) method of raising dyeing process accuracy of the invention can realize the easy judgement of symmetrical material formula accuracy, To constantly mix colours when avoiding and being produced and processed caused by being not allowed because of weighing, repair color process, thus the energy consumption of dyeing process process With discharge of wastewater.
Detailed description of the invention
Fig. 1 is the ultraviolet-visible absorption spectroscopy curve that B sauce red, 2R are yellow in 1 dye solution of embodiment and PA-01 is dark blue;
Fig. 2 is theoretical ultraviolet-visible absorption spectroscopy curve, practical ultraviolet-visible absorption spectroscopy curve and tune in embodiment 1 Ultraviolet-visible absorption spectroscopy curve after whole;
Fig. 3 is theoretical ultraviolet-visible absorption spectroscopy curve, practical ultraviolet-visible absorption spectroscopy curve and tune in embodiment 2 Ultraviolet-visible absorption spectroscopy curve after whole.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the art Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited Range.
A method of improving dyeing process accuracy, comprising the following steps:
(1) common dyestuff in plant produced is selected, the ultraviolet-visible absorption spectroscopy curve under various concentration is acquired, is established The ultraviolet-visible absorption spectroscopy curve master database of different dyes unit concentration;
(2) when drawing a design or when plant produced is processed, dyestuff is weighed according to process recipe, after material is uniform, acquires dye liquor, it is dilute After releasing, practical ultraviolet-visible absorption spectroscopy curve is measured;
(3) according to the ratio of dyestuff each in the dyeing recipe actually used, and the UV, visible light obtained in conjunction with step (1) The additive property of absorption spectrum curve, the ultraviolet-visible absorption spectroscopy curve of different dyes unit concentration is multiplied by phase after concentration factor Add, obtains theoretical ultraviolet-visible absorption spectroscopy;
(4) the actual absorption spectrum that the theoretical ultraviolet-visible absorption spectroscopy that comparison step (3) obtains and step (2) obtain it Between correlation, if relevance parameter be greater than 0.95, for the ratio between absorption values in 0.98-1.03, then dyeing recipe is accurate, It can be produced with following process;If correlation is less than 0.95, needed when the ratio between absorption values are less than 0.98 to concentration factor into Row amendment, until relevance parameter is greater than 0.95, the ratio between absorption values in 0.98-1.03, more final concentration values with The concentration factor that dyeing recipe calculates increases corresponding dyestuff, implements dyeing, if the ratio between absorption values are greater than 1.03, needs Again dyestuff is weighed.
The test scope of ultraviolet-visible absorption spectroscopy curve is 400-800nm, test interval 0.5nm.UV, visible light is inhaled The test temperature for receiving the curve of spectrum is 25-35 DEG C.
Embodiment 1
When production and processing, with B sauce red, 2R is yellow and PA-01 is dark blue for tricolor dye, and the mass ratio between dyestuff is 1:1:1, The total dosage of dyestuff is 4.5% (ratio of the weight of o.w.f., dyestuff and fabric).Having adopted concentration first is respectively 0.02g/L, 0.03g/L, 0.04g/L, 0.05g/L, 0.06g/L, 0.07g/L, 0.08g/L, 0.09g/L, 0.10g/L, each dye solution are purple Outer visible absorption spectra, the ultraviolet-visible absorption spectroscopy curve that B sauce red, 2R are yellow in 1 dye solution of embodiment and PA-01 is dark blue is such as Shown in Fig. 1.
When plant produced, after weighing good colourant, with material bucket medium temperature aquation material, 1.0g sample is taken, is measured after 25 times of dilution Ultra-violet absorption spectrum calculates resulting theoretical curve, theoretical ultravioletvisible absorption light in embodiment 1 according to the concentration relationship of dyestuff Spectral curve, practical ultraviolet-visible absorption spectroscopy curve and ultraviolet-visible absorption spectroscopy curve adjusted are as shown in Figure 2.
Using origin software, the Kendall's correlations coefficient (Kendall of theoretical curve and measured curve is calculated Correlation), size 0.918.Know that dyestuff mistake occurs during weighing, it is corresponding according to each monogenetic dye Maximum absorption wavelength, it can be seen that in actual value yellow set component difference it is larger.It is corresponding after adding quantitative weld Kendall's correlations coefficient (Kendall Correlation) between ultra-violet absorption spectrum and theoretical value is 0.981, that is, after starting Continuous dyeing, cloth specimen color and standard specimen color contrast after dyeing, color difference Δ E meet customer requirement less than 0.5, dyeing once at Function.
Embodiment 2
Production and processing formula: B sauce red 2.0% (o.w.f.).After weighing-warm water material, take 1.0g sample, after dilution, adopt Collect ultra-violet absorption spectrum, theoretical curve is as shown in the figure with actual curve.Fig. 3 is theoretical ultraviolet-visible absorption spectroscopy in embodiment 2 Curve, practical ultraviolet-visible absorption spectroscopy curve and ultraviolet-visible absorption spectroscopy curve adjusted;
Pearson correlation coefficients (Pearson Correlations) between corresponding ultra-violet absorption spectrum and theoretical value It is 0.990, but it can be seen that corresponding absorption values difference is larger in the case where diluting identical multiple, is being added After 5% dyestuff, corresponding Pearson correlation coefficients (Pearson Correlations) are 0.990, but absorbance curve Almost it is overlapped.Implementing dyeing, the color difference Δ E of material and standard specimen meets customer requirement less than 0.3 below, dyes primary success.

Claims (9)

1. a kind of method for improving dyeing process accuracy, which comprises the following steps:
(1) common dyestuff in plant produced is selected, the ultraviolet-visible absorption spectroscopy curve under various concentration is acquired, is established different The ultraviolet-visible absorption spectroscopy curve master database of dyestuff unit concentration;
(2) when drawing a design or when plant produced is processed, dyestuff is weighed according to process recipe, after material is uniform, acquires dye liquor, dilution Afterwards, practical ultraviolet-visible absorption spectroscopy curve is measured;
(3) according to the ratio of dyestuff each in the dyeing recipe actually used, and the ultravioletvisible absorption obtained in conjunction with step (1) The additive property of the curve of spectrum, the ultraviolet-visible absorption spectroscopy curve of different dyes unit concentration are obtained multiplied by being added after concentration factor To theoretical ultraviolet-visible absorption spectroscopy curve;
(4) the theoretical ultraviolet-visible absorption spectroscopy curve that comparison step (3) obtains and the practical UV, visible light that step (2) obtain are inhaled The correlation between the curve of spectrum is received, if relevance parameter is greater than 0.95, the ratio between absorption values are in 0.98-1.03, then Dyeing recipe is accurate, can be produced with following process;If correlation is less than 0.95, the ratio between absorption values are less than 0.98 Shi Zexu Concentration factor is modified, until relevance parameter is greater than 0.95, the ratio between absorption values are in 0.98-1.03, relatively finally Concentration values and the concentration factor that calculates of dyeing recipe, increase corresponding dyestuff, implement dyeing, if the ratio between absorption values are big In 1.03, then need to weigh dyestuff again.
2. the method according to claim 1 for improving dyeing process accuracy, which is characterized in that different dense in step (1) The range of degree is 0.01g/L~0.2g/L.
3. the method according to claim 2 for improving dyeing process accuracy, which is characterized in that different dense in step (1) The range of degree is 0.02g/L~0.10g/L.
4. the method according to claim 3 for improving dyeing process accuracy, which is characterized in that different dense in step (1) The range of degree be 0.02g/L, 0.03g/L, 0.04g/L, 0.05g/L, 0.06g/L, 0.07g/L, 0.08g/L, 0.09g/L, 0.10g/L。
5. it is according to claim 1 improve dyeing process accuracy method, which is characterized in that in step (1), it is ultraviolet can The test scope for seeing absorption spectrum curve is 400-800nm, test interval 0.5nm.
6. it is according to claim 1 improve dyeing process accuracy method, which is characterized in that in step (1), it is ultraviolet can The test temperature for seeing absorption spectrum curve is 25-35 DEG C.
7. the method according to claim 1 for improving dyeing process accuracy, which is characterized in that practical purple in step (2) The test scope of outer visible absorption spectra curve is 400-800nm, test interval 0.5nm.
8. the method according to claim 1 for improving dyeing process accuracy, which is characterized in that practical purple in step (2) The test temperature of outer visible absorption spectra curve is 25-35 DEG C.
9. the method according to claim 1 for improving dyeing process accuracy, which is characterized in that described in step (4) Relevance parameter is Pearson correlation coefficients, Spearman's correlation coefficient or Kendall's correlations coefficient.
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