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单词 moellon degras
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moellon degras
A dark wax or grease used in curing leather; = degras n. 1. Also moellon degras.
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society > occupation and work > materials > derived or manufactured material > leather > leather-making materials > [noun] > other leather-making materials
sabrasc1480
stuff1812
pure1842
bran-drench1883
moellon1897
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plumper1903
1897 C. T. Davis Manuf. Leather (ed. 2) 227 French moellon oil, strictly speaking, is an expressed oil from chamois tannage, French degras being a mixture of moellon and oil obtained from washing the skins in an alkaline solution.
1922 H. R. Procter Princ. Leather Manuf. (ed. 2) xxv. 448 The residual oil..constitutes moellon... Mixed with further quantities of fish oils, tallows, and sometimes wool-fat, it constitutes the ordinary dégras of commerce.
1931 J. A. Wilson & H. B. Merrill Anal. Leather xi. 382 The excess oil is pressed out after saturating the skins with water and constitutes the purest and best grade of moellon dégras.
1939 Thorpe's Dict. Appl. Chem. (ed. 4) III. 552 (heading) Analysis of moëllon-dégras.
1969 T. C. Thorstensen Pract. Leather Technol. xii. 202 Natural moellon is produced by the oxidation of raw cod liver oil in the tanning of sheep and goat chamois skins. Synthetic moellon is produced by the controlled aeration of raw cod liver oil to the desired oxidation fatty acid value; it results in more hydrophilic properties.
1983 J. H. Sharphouse Leather Technician's Handbk. (rev. ed.) xxi. 216 This oxidised oil..is known as Degras or Moellon and is a marketable by-product, having uses in fatliquoring, etc.
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