... A empresa de curtume faz o beneficiamento do couro até o processo ... Caleiro/Depilação: Caleiro - Tratamento de peles com cal suspensa em água, destinado www.cueroamerica.com/tecnologia_calzado/ tecnologia_calzado_07.htm

Liming
A process preliminary to tanning, which serves one or both of two purposes: (1) to loosen the hair or wool on a hide or skin, preparatory to dehairing; and (2) to plump or swell the fibres as of the processes necessary to prepare the substance for the action of the tan liquors. Liming is always required for the latter of these purposes.
http://www.indianleatherportal.com/leather-glossary/glossary...

Desencalagem e lixo (ou purga): Estas operaçôes têm como finalidade eliminar o excesso de cal (desencalagem), remover os restos de raizes de cabelo e epiderme e abrir a estrutura da pele (lixo ou purga). Para tal utilizam-se produtos neutralizantes ácidos, chamados desencalantes e enzimas para o chamado lixo.
http://www.ctic.pt/html/curtumes/processo_fabrico/processo_f...

Deliming
A process preparatory to tanning proper to reduce the swollen and rigid fibres of a hide or skin after liming.
http://www.indianleatherportal.com/leather-glossary/glossary...

Agrícola/Pele de peixe pode ser curtida
... No curtume, o material passará por vários processos ... aplica-se cal e sulfeto de sódio que deverão, na seqüência, ser retirados no processo de desencalagem. ...
www.estado.estadao.com.br/jornal/suplem/ agri/97/10/29/agri006.html

A purga é realizada com enzimas visando a limpeza da estrutura fibrosa pela eliminação dos constituintes da pele que não fazem parte da rede de colágeno, atuando sobre as proteínas globulares, glândulas, gorduras naturais e componentes queratínicos degradados no caleiro. A purga é realizada em limites controlados de pH e temperatura do banho para que apresente seu melhor desempenho.
http://www.capritec.com.br/art10.htm

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Note added at 2002-12-23 15:48:38 (GMT)
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a purga talvez se chama \'bating\'

Bating
Removal of residual unhairing chemicals and non-leather making substances.
http://www.siegelofca.com/html/_glossary_a-b.html

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Note added at 2002-12-23 15:53:50 (GMT)
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A Brief Outline of Processes Used in Leather Production

1. Before Tanning
a. Flaying (removal of hide from animal)
b. Curing (to preserve skins for transport- e.g. salting)
c. Washing wet salted material or soaking back dry material (to
restore hides to a hydrated \"natural\" condition)
d. Liming (to loosen hair, fat, etc. and \"plump\" skin to ready for
tanning)
e. Unhairing (removal of hair)
f. Fleshing (remove unwanted flesh and fat)
g. Deliming (to neutralize basicity \'alkalinity\' from Liming
process)
h. Bating (soften and clean skins)
i. Pickling, Drenching or Souring (to bring the skins to the proper
pH for tannage) Pickled skins may be preserved at this stage
http://www.siegelofca.com/html/glossary_tanning_process.html

--------------------------------------------------
Note added at 2002-12-23 15:58:34 (GMT)
--------------------------------------------------

A Brief Outline of Processes Used in Leather Production

1. Before Tanning
a. Flaying (removal of hide from animal)
b. Curing (to preserve skins for transport- e.g. salting)
c. Washing wet salted material or soaking back dry material (to
restore hides to a hydrated \"natural\" condition)
d. Liming (to loosen hair, fat, etc. and \"plump\" skin to ready for
tanning)
e. Unhairing (removal of hair)
f. Fleshing (remove unwanted flesh and fat)
g. Deliming (to neutralize basicity \'alkalinity\' from Liming
process)
h. Bating (soften and clean skins)
i. Pickling, Drenching or Souring (to bring the skins to the proper
pH for tannage) Pickled skins may be preserved at this stage
http://www.siegelofca.com/html/glossary_tanning_process.html

--------------------------------------------------
Note added at 2002-12-23 15:58:39 (GMT)
--------------------------------------------------

a purga talvez se chama \'bating\'

Bating
Removal of residual unhairing chemicals and non-leather making substances.
http://www.siegelofca.com/html/_glossary_a-b.html