Improving paper wet strength via increased lignin content and hot-pressing temperature, TAPPI JOURNAL October 2020
Application: The properties of natural wood lignin offer a way to improve the strength of paper materials by using pulps with a high content of naturally occurring lignin and hot-pressing at temperatures well above the softening temperature of lignin. The effect is particularly notable in the case of wet strength, meaning that this technique can be important in reducing the use of harmful wet strength chemicals and the related process problems such as tacky deposits on papermaking equipment.
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