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A Non-Linear Recipe Correction Method for Leather Dyeing and Color Matching

A non-linear correction and formulation technology, applied in color matching, color measurement devices, spectrometry/spectrophotometry/monochromator, etc., can solve the problem of large differences in leather raw materials and great influence on the color of dyed leather. Poor performance and other problems, to achieve the effect of improving the level of automation, improving the efficiency of proofing, and huge economic benefits

Active Publication Date: 2019-01-22
JIAXING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A Non-Linear Recipe Correction Method for Leather Dyeing and Color Matching
  • A Non-Linear Recipe Correction Method for Leather Dyeing and Color Matching
  • A Non-Linear Recipe Correction Method for Leather Dyeing and Color Matching

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with specific embodiments.

[0033] See Figure 1 to Figure 5 , The non-linear formula correction method for leather dyeing and color matching of the present invention is suitable for the color matching of scalp skin dyeing and includes the following steps:

[0034] a. Use computer software to measure the initial standard color formula C based on the standard color, and perform 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 sample color 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, a measuring aperture of 30mm, and specular reflection included; take three different positions of the sample to measure the average reflectance Rp , And measure the reflectance Rs of the standard color.

[0035] b. Use the CIELAB c...

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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 non-linear 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] The tanning industry is an ancient and backward industry with strong export capacity for foreign exchange earning. Although it has been developed for thousands of years, it has never been able to get rid of the situation of manual manufacturing and experience control. The degree of automation of the enterprise is very low. At present, the domestic leather processing factories without exception use manual color matching, 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 to color, and finally determine the dyeing formula. Obviously, manual color matching requires a high level of experience of the dye ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/46
CPCG01J3/463G01J2003/467G16Z99/00
Inventor 沈加加
Owner JIAXING UNIV
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