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Non-linear formula correction method for leather dyeing and color matching

A non-linear correction and formulation technology, applied in color matching, color measurement devices, special data processing applications, etc., can solve the problems of large differences in leather raw materials, great influence on the color of dyed leather, poor applicability, etc., and achieve the improvement of automation level , improve proofing efficiency, and the effect of huge economic benefits

Active Publication Date: 2016-07-27
JIAXING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But when it is applied to the dyeing and matching of leather, the error is very large. The main reasons are: 1. The leather raw materials are very different, and the dye absorption of the same kind of leather in different seasons, different climates, different production areas, and different growth periods is very different; 2. , Subsequent processing such as stretching has a great influence on the color of dyed leather, especially the surface of the top leather; these factors lead to a non-linear relationship between dye concentration and color depth, so the traditional linear correction coefficient method is poor in applicability, so it is necessary to establish a suitable Color correction method of leather dyeing characteristics

Method used

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  • Non-linear formula correction method for leather dyeing and color matching
  • Non-linear formula correction method for leather dyeing and color matching
  • Non-linear formula correction method for leather dyeing and color matching

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Embodiment Construction

[0032] Below in conjunction with specific embodiment, the present invention is further elaborated.

[0033] see Figure 1 to Figure 5 , a kind of non-linear formula correcting method for leather dyeing and color matching of the present invention is applicable to the color matching of top layer leather dyeing, comprises the steps:

[0034] a. Based on the standard color, use computer software to measure the initial formula C of the standard color, and carry out dyeing and proofing according to the initial formula C=[c1,c2,c3]T to obtain a sample color, and use a spectrophotometer to measure the primary color sample color, and compare the color difference with the reflectance of the standard color; the measurement uses a datacolor600 colorimeter, with a 10° field of view, the measurement aperture is 30mm, and the specular reflection is included; 3 different positions of the sample are measured to obtain the average reflectance Rp , and measure the reflectance Rs of the standard...

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PUM

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Abstract

The invention relates to a non-linear formula correction method for leather dyeing and color matching. The method comprises the following steps: using standard colors as standards and obtaining a standard color original color matching formula C through computer software, making samples according to the stand color original color matching formula C and measuring the reflectivity (Rp) of the sample colors; measuring the reflectivity (Rs) of the standard colors; using a CIELAB color different formula to compare the reflectivity (Rp) of the sample colors with the reflectivity (Rs) of the standard colors, wherein [Delta] E=Rp-Rs; outputting the standard color original color matching formulawhen [Delta]E is less than a set error value; and correcting the standard color original color matching formula C when [Delta]E is greater than the set error value.

Description

technical field [0001] The invention relates to a nonlinear formula correction method for leather dyeing and color matching, in particular to a computer formula correction method for leather or textile dyeing. Background technique [0002] Tannery industry is an old and backward industry with a strong ability to earn foreign exchange through export. Although it has been developed for thousands of years, it still cannot get rid of the situation of hand-made and experience-based control. The degree of automation of enterprises is very low. At present, domestic leather processing factories all use artificial color matching without exception. That is, when the dyeing factory receives samples from customers, the dyeing master will give the approximate formula of the standard color sample based on experience, and then try dyeing. Then color toning, and finally determine the coloring formula. Obviously, artificial color matching requires a lot of experience of the dyer, and it is ...

Claims

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Application Information

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IPC IPC(8): G01J3/46G06F19/00
CPCG01J3/463G01J2003/467G16Z99/00
Inventor 沈加加
Owner JIAXING UNIV
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