Leather quality testing method

Abstract

The invention relates to a leather quality detection method, wherein the detected quality performance comprises safety performance, ecological performance or durable performance. The detection method includes the following steps: (1) according to quality performance parameters, testing to-be-tested leather, to obtain test results; (2) treating the test results by adopting a quantitative model, and thus obtaining a quantitative result of the to-be-tested leather under the quality performance. The to-be-tested leather is tested according to the quality performance parameters, and the test results are treated by using the quantitative model of the quality performance, so that the safety performance, ecological performance and durable performance of the leather quality are subjected to scientific and quantitative determination; through comparison and accumulation of the determination results, data have comparability between the products and quality parameter accumulated value, the change trend of the leather quality performance and the improvement of the technology can be reflected, and fuzzy descriptions of traditional language expression forms, such as 'qualified products' and 'unqualified products', are changed.

Description

technical field [0001] The invention relates to leather quality detection, in particular to a leather quality detection method. Background technique [0002] The quality performance of leather is the combination of theory and practice, and it is a means and tool for people to understand the essence of leather and further improve the quality of leather. The quality of leather is composed of many factors, such as sensory performance, physical and mechanical properties, hygienic performance, safety performance and ecological performance, each of which includes many indicators such as appearance, strength, toxic and harmful substances, color fastness, etc. , and there are overlaps between indicators, so there are many indicators reflecting the quality and performance of finished leather, and the system is relatively complicated. Different countries and different researchers and scholars measure the quality of finished leather from different application and research perspectives....

AI Technical Summary

Problems solved by technology

[0004] (1) The methods to reflect the ecological performance of leather mainly include limit value judgment method, ecological footprint and environmental risk assessment, etc. Among them, the ecological footprint is relatively complex, covering a wide range of periods and fields, although it has been studied by many scholars, but It has also caused more controversy, especially the carbon footprint. The International Leather Organization has not yet reached a conclusion on the scope of the carbon footprint of leather. However, it cannot be quantified, and in view of the complexity of the ecosystem, there are very few researches on environmental risk assessment that can be recognized at present. method is very necessary;

[0005] (2) The testing methods for the safety performance of leather and its products at home and abroad are mainly based on the limit value evaluation method, that is, testing is carried out according to existing relevant technical regulations, standards and technical specifications, such as China’s sampling guidelines and EU’s REACH regulations , the CPSIA Act of the United States and 16cfr, etc., if one item is unqualified, it will be judged as unqualified. Although it is intuitive to determine whether the product is qualified, it cannot fully and quantitatively reflect the pros and cons of product safety performance, so that the conclusions can be compared. Risk assessment The method is a relatively scientific method currently recommended for evaluating the safety performance of consumer products. In China, the Quality Supervision Bureau mainly conducts risk monitoring and establishment of related indicators of a certain product to determine the safety risk level of the product. For multiple safety Performance indicators, the highest risk level is selected as the risk level of the product, and there are generally multiple safety performance indicators for leather and its products. It is unfair to judge only the highest risk level, and the method is subjective. Strong, enterprises, it is difficult for the government to use in actual operation, different safety performance indicators have different safety risk levels, different weights in the comprehensive safety performance, and different contribution levels, and the comprehensive judgment of the risk level is compared with the highest value The judgment is more scientific. Therefore, it is necessary to seek a method with strong practicality and comprehensive quantification of the safety performance of leather and its products;

[0006] (3) With the development of science and technology, interdisciplinary subjects have been widely popularized, and "big data" has become a hot word recently. In recent years, in the quantitative methods of product characteristics, fuzzy mathematics, artificial neural network, discriminant analysis, etc. The application of statistics is more and more extensive, and its application value has gradually been reflected in the leather industry, but these methods are all focused on the judgment of sensory properties, and do not involve other properties of leather, and these methods are all There are advantages and disadvantages, and it cannot be completely applied to leather and its products.

[0007] To sum up, in the actual work of leather quality and performance testing in the world leather industry, there is no quantitative method that can comprehensively reflect leather quality, but only reflect leather quality based on a single index value, and carry out "one veto system" , it is difficult to describe the impact of multiple indicators on the quality of leather, and objectively comprehensively quantify and characterize various properties of leather; and the quality judgment of leather usually gives a vague and qualitative description in the form of language expressions such as "qualified" or "unqualified". , the conclusion inevitably has a certain one-sidedness. It is difficult to quantify the pros and cons of product quality, which also causes the quality of samples to be incomparable. direction of improvement

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