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SE9300744L - Procedure for chafing of hides and skins - Google Patents

Procedure for chafing of hides and skins

Info

Publication number
SE9300744L
SE9300744L SE9300744A SE9300744A SE9300744L SE 9300744 L SE9300744 L SE 9300744L SE 9300744 A SE9300744 A SE 9300744A SE 9300744 A SE9300744 A SE 9300744A SE 9300744 L SE9300744 L SE 9300744L
Authority
SE
Sweden
Prior art keywords
removal
skins
proteases
fresh
hides
Prior art date
Application number
SE9300744A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9300744D0 (en
SE506132C2 (en
Inventor
Juergen Christner
Tilman Taeger
Gertrud Wick
Original Assignee
Roehm Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Roehm Gmbh filed Critical Roehm Gmbh
Publication of SE9300744D0 publication Critical patent/SE9300744D0/en
Publication of SE9300744L publication Critical patent/SE9300744L/en
Publication of SE506132C2 publication Critical patent/SE506132C2/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C1/00—Chemical treatment prior to tanning
    • C14C1/04—Soaking
    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B1/00—Manufacture of leather; Machines or devices therefor
    • C14B1/02—Fleshing, unhairing, samming, stretching-out, setting-out, shaving, splitting, or skiving skins, hides, or leather

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Cosmetics (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Enzymes And Modification Thereof (AREA)
  • Meat, Egg Or Seafood Products (AREA)
  • Detergent Compositions (AREA)

Abstract

Removal of flesh on skins and hides by removal of the hypodermal connective tissue (HCT) comprises subjecting fresh skins at 5-30 deg. C pH 5-10 to one or more proteolytic enzymes (E.C.3.4, Kirk-Othmer, Encyclopedia of Chemical technology, 3rd edition, vol. 9, 199-202, Wiley, 1980) with large elastolytic activity for 2 to 24 hours and possible mechanically removing the HCT. Pref. the method is performed in the presence of a wetting agent. Pref. alkaline proteases (E.C.3.4.21) are used in 1000 to 30000 Lohlein-Volhard-units (LVU) per kg. skin (claimed). The alkaline proteases used have a mol.wt. of 25000-35000. The proteases are (a) bacterioproteases from Bacillus (B.), e.g. B. subtilis, B. licheniformis and B. firmus, (b) subtilisins (claimed) and (c) serine proteases, e.g. from Aspergillus (A.) oryzae, A. flavus and A. soyae. USE/ADVANTAGE - Removal of flesh on fresh skins improves the leather liming. With the current method the removal on fresh skin is almost complete prior to liming with no need for a further step.
SE9300744A 1992-04-15 1993-03-05 Procedure for chafing of hides and skins SE506132C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4212568A DE4212568A1 (en) 1992-04-15 1992-04-15 Flesh removal on fresh skins for leather prodn. - comprises applying proteolytic enzyme with strong elastolcytic activity at pH 5-10 and 5-30 deg. C prior to lifting

Publications (3)

Publication Number Publication Date
SE9300744D0 SE9300744D0 (en) 1993-03-05
SE9300744L true SE9300744L (en) 1993-10-16
SE506132C2 SE506132C2 (en) 1997-11-17

Family

ID=6456852

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9300744A SE506132C2 (en) 1992-04-15 1993-03-05 Procedure for chafing of hides and skins

Country Status (6)

Country Link
AT (1) AT400957B (en)
BR (1) BR9301531A (en)
DE (1) DE4212568A1 (en)
FI (1) FI931662A7 (en)
RU (1) RU2099429C1 (en)
SE (1) SE506132C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2196971B1 (en) * 2001-08-22 2005-03-01 Fundacion Azti-Azti Fundazioa ENZYMATIC PROCESS OF FELT OF TUNIDS.
RU2294376C1 (en) * 2005-09-29 2007-02-27 Московский государственный университет дизайна и технологии (МГУДТ) Fur semi-finished product treatment process

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2917376C2 (en) * 1979-04-28 1987-03-26 Röhm GmbH, 6100 Darmstadt Enzymatic process for hair extraction and simultaneous skin disintegration
DE3312840A1 (en) * 1983-04-09 1984-10-11 Röhm GmbH, 6100 Darmstadt Method for the wet degreasing of hide material
DE3429047A1 (en) * 1984-08-07 1986-02-20 Röhm GmbH, 6100 Darmstadt ENZYMATIC DEHABILIZATION PROCEDURE
DE3513253C2 (en) * 1985-04-13 1997-04-10 Roehm Gmbh Process for the rapid enzymatic depilation of skins
DE3922748B4 (en) * 1989-07-11 2006-01-05 Röhm GmbH & Co. KG Enzymatic soft process

Also Published As

Publication number Publication date
RU2099429C1 (en) 1997-12-20
SE9300744D0 (en) 1993-03-05
FI931662L (en) 1993-10-16
FI931662A7 (en) 1993-10-16
DE4212568A1 (en) 1993-10-21
ATA37493A (en) 1995-09-15
FI931662A0 (en) 1993-04-14
BR9301531A (en) 1993-11-30
AT400957B (en) 1996-05-28
SE506132C2 (en) 1997-11-17

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