Practical Leather Technology |
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Page 135
Thomas C. Thorstensen. Drum tanning Drum tannage in the United States involves a bate , pickle , and tan operation . In side upper leather , the sides are introduced into the drum in the limed con- dition . The sides are bated , pickled ...
Thomas C. Thorstensen. Drum tanning Drum tannage in the United States involves a bate , pickle , and tan operation . In side upper leather , the sides are introduced into the drum in the limed con- dition . The sides are bated , pickled ...
Page 166
... drum , colored , and fatliquored to the desired characteristics . Pressures for high - speed production in vegetable tannage have been felt by the upholstery leather tanners , and in recent years it is becoming increasingly evident that ...
... drum , colored , and fatliquored to the desired characteristics . Pressures for high - speed production in vegetable tannage have been felt by the upholstery leather tanners , and in recent years it is becoming increasingly evident that ...
Page 169
... Drum Phenolic Syntan 11⁄2 hours 2 - 3 % salt pH 5 ( 2 ) Tannage Circulating drum 40 ° Bk pH 5 Mimosa , bisulfited quebracho , or chestnut 1 - 2 days ( 3 ) Main tannage Pits in series pH 4.5 8 12 days 70 ° Bk to pH 3.8 100 ° Bk temp . 37 ...
... Drum Phenolic Syntan 11⁄2 hours 2 - 3 % salt pH 5 ( 2 ) Tannage Circulating drum 40 ° Bk pH 5 Mimosa , bisulfited quebracho , or chestnut 1 - 2 days ( 3 ) Main tannage Pits in series pH 4.5 8 12 days 70 ° Bk to pH 3.8 100 ° Bk temp . 37 ...
Contents
HIDES AND SKINSCOMMERCIAL ASPECTS | 1 |
HIDE AND SKIN STRUCTURE | 17 |
CURING | 30 |
Copyright | |
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addition alkaline amino acids animal applied basic bating beamhouse cattle hides cattlehide characteristics chemical Chemistry chloride chrome tannage chromium coats collagen color cost curing decrease deliming desired drum drying effluent elastin emulsion enzyme evaporation extract fatliquoring fatty acids fiber Figure fixation flesh formaldehyde goatskins grain hair follicle hide protein hides and skins hydrogen isoelectric point keratin leather industry Leather Manufacture leather production lignosulfonate lime liquor lubrication machine method moisture molecule naphthalene obtained operation oxidation penetration pickle pigskin practical quantity quebracho reaction Reinhold removal resin result shearlings sheepskin shoe upper side sludge soaking sodium sodium sulfide sole leather soluble solution solvent split suede sulfate sulfhydrate sulfide sulfonic sulfuric acid surface suspended solids swelling syntans tannage tannery tanning agent tanning process temperature tion types of leather unhairing United upper leather usually vegetable tanning materials vegetable tannins wastes