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Development of a method for measurement of the dynamic absorption properties in the thickness direction of tissue products
KTH, School of Chemical Science and Engineering (CHE).
2015 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Utveckling av en metod för mätning av dynamisk absorption i tjockleksriktningen hos mjukpappersprodukter (Swedish)
Abstract [en]

A new method for measuring the dynamic absorption properties in the thickness direction of a single sheet of tissue paper was developed. It is possible to configure the method in order to measure the effect of compression of the sample, although this was never tested. The method uses a camera to record the position of the front of a water flow passing on one side of the sample and when it is absorbed through the paper sample. The absorption rate is estimated by determining the time difference when the water passes the same position on both sides of the sample.

A series of measurements for three different paper samples were made in order to evaluate the method. The method was able to measure the absorption rate in the thickness direction of the paper samples. Evaluation of the results showed a high variability within the results. This variability in the results is due to problems in the construction of the setup and the recording and evaluation of the experiments.

From the measurements made there are several conclusion that can be made. In the experiments with one sheet of tissue paper the SCA TAD sample hade significantly better absorption properties then the other samples. In the experiments with several layer of paper the absorption rate increased with the number of layers for SCA TAD and Wepa Megasweep, while the absorption rate decreased in for Wepa Kitkins.

The results of the measurements using the new method was compared to measurements using the Water Absorption Tester. The results of the two methods are consistent in showing that the SCA TAD has better absorption properties. Although the absolute results of the methods are not in agreement.

Place, publisher, year, edition, pages
2015. , 47 p.
Keyword [en]
tissue paper, dynamic absorption, method development, single sheet, absorption rate
National Category
Paper, Pulp and Fiber Technology
URN: urn:nbn:se:kth:diva-174356OAI: diva2:859173
Available from: 2015-10-06 Created: 2015-10-06 Last updated: 2015-10-06Bibliographically approved

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