Electrostatic adsorption behavior of cotton yarn lubricant
The Zeta potential of cotton yarn and lubricant was investigated,and the adsorption behavior between the two was analyzed by measuring the adsorption rate of the lubricant.The results showed that the Zeta potential of lubricant lotion is greatly affected by pH and lubricant type when pH was in the range of 3-10.The surface Zeta potential of cotton bleached yarn was-25 mV to-20 mV,and that of cotton fixed color yarn was 10 mV to 30 mV.Cationic lubricants could be fully adsorbed by cotton bleached yarn under weak acidic conditions,and the adsorption rate was only 6%-11%under neutral to weak alkaline conditions.In the range of weak acid to weak alkaline,the adsorption rate of cotton fixed color yarn on cationic lubricants was only 12%-22%.Weak anionic lubricants could be fully adsorbed by cotton fixed color yarn under neutral to al-kaline conditions,and the adsorption rate was 67.9%under weak acidic conditions.
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