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Copyright of Cotton Textile Technology is the property of Cotton Textile Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Cotton textiles are soft and skin-friendly and have good hygroscopicity. They are essential daily necessities in our life and can bring people a good feeling of use in personal wear hygienic finishing and other aspects. However for cotton textiles with light color especially white ones after a period of use especially after seasonal storage the surface will inevitably yellow which will affect the appearance of the textile and even lead to the deterioration of the textile performance and service life. The quality complaints caused by yellowing problems also show an increasing trend year by year. Oxidation fiber aging microbial erosion and phenolic antioxidants in packaging materials are the main causes of yellowing of cotton textiles. However the detection of the yellowing substance on the surface of cotton textiles is still little so it is necessary to study the yellowing substance from the perspective of yellowing composition to further elucidate the yellowing mechanism of cotton textiles and to inhibit yellowing phenomenon from the essence. In order to identify the specific composition of the surface yellowing substances of cotton textiles and select the appropriate chromatochromatoid-mass spectrometry technology firstly we listed the target compounds. In view of the isomerization phenomenon of some target compounds in gas chromatography we used liquid mass spectrometry to detect the compounds and selected ultra-high performance liquid chromatography-quadrupole-electrostatic field orbital hydrazine high-resolution liquid chromatography-mass spectrometry technology. We screened the quasi-molecular ion peak by Xcalibur software in positive and negative ion modes respectively and analyzed the secondary mass spectrometry fragment information according to relevant literature so as to identify the presence of target compounds. On this basis we compared secondary mass spectrometry fragments with the human metabolome database to achieve the effect of auxiliary identification. In this study we listed the yellowing components on the surface of cotton textiles as the target compounds. We explored a feasible method for rapid identification of the yellowing chemical substances on the surface of cotton textiles by combining the detection of ultra-high performance liquid chromatography-mass spectrometry technology with the comparison of secondary mass spectrometry fragments of human metabolome database. According to the identification the yellowing substances on the surface of cotton textiles are mainly unsaturated hydrocarbons fatty acids aldehydes and ketones. It can be seen from the secondary mass spectrometry fragments that unsaturated hydrocarbon squalene plays a key role in yellowing substances of cotton textiles. The secretions produced by the parts of human sebum with strong secretion have the same effect on the yellowing of cotton textiles. Starting from the specific composition of yellowing chemical substances of cotton textiles and understanding the properties of various compounds this study can provide a basis for explaining the yellowing mechanism so as to further take targeted measures to curb yellowing phenomenon. By using the identification method in this study the data can be extended and reused to provide reference suggestions for exploring the existence of other squalene derivatives or other compounds. [ABSTRACT FROM AUTHOR]

Copyright of Advanced Textile Technology is the property of Zhejiang Sci-Tech University Magazines and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cotton Textile Technology is the property of Cotton Textile Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Textile Leader is the property of China Textile Information Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)