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Mäntysalo E, Marjoniemi M, Kilpeläinen M. Chrome tannage using high-intensity ultrasonic field. Ultrason Sonochem. 1997;4(2):141-4doi: 10.1016/s1350-4177(97)00030-8.
Mäntysalo, E., Marjoniemi, M., & Kilpeläinen, M. (1997). Chrome tannage using high-intensity ultrasonic field. Ultrasonics sonochemistry, 4(2), 141-4. https://doi.org/10.1016/s1350-4177(97)00030-8
Mäntysalo, E, et al. "Chrome tannage using high-intensity ultrasonic field." Ultrasonics sonochemistry vol. 4,2 (1997): 141-4. doi: https://doi.org/10.1016/s1350-4177(97)00030-8
Mäntysalo E, Marjoniemi M, Kilpeläinen M. Chrome tannage using high-intensity ultrasonic field. Ultrason Sonochem. 1997 Apr;4(2):141-4. doi: 10.1016/s1350-4177(97)00030-8. PMID: 11237032.
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Ultrason Sonochem. 1997 Apr;4(2):141-4. doi: 10.1016/s1350-4177(97)00030-8.

Chrome tannage using high-intensity ultrasonic field.

Ultrasonics sonochemistry

E Mäntysalo, M Marjoniemi, M Kilpeläinen

Affiliations

  1. Fiber, Textile and Clothing Science, Fur and Leather Division, Tampere University of Technology, Finland. [email protected]

PMID: 11237032 DOI: 10.1016/s1350-4177(97)00030-8

Abstract

The process time in chrome tannage in leather making, using an elastic compression cycle followed by irradiation by high-intensity ultrasound, is quite short lasting only a few minutes, compared with a process time of several hours in modern chrome tannage. After ultrasonic irradiation, samples were basified in 17 h in chrome liquor at a pH of 4.0 and the shrinkage temperature was measured. The determination of the efficiency for the chrome liquor penetrating into the hides can be based on the steepness of the shrinkage temperature-processing time curve. An approximate value of 20 degrees C min(-1) can be evaluated for the initial slope of the curve when elastic compression and high-intensity ultrasonic irradiation is used, and a processing time of 2 min is required in chrome liquor (plus 17 h basification and 24 h storage time) to obtain leather stable to boiling. Usually, hides are kept in chrome liquor for 2 h.

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