Hide raceway treatment and improved method of curing hides
AssigneeBirko Corporation
InventorsFrederick W. Holzhauer, Dana J. Johnson, Terry McAninch
Life of this patent
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Abstract
A process for the curing of animal hides using a brine solution including the step of adding an effective bactericidal and flocculating amount of a composition comprising: 10-30 wt. % acetic acid 5-20 wt. % peracetic acid 15-25 wt. % hydrogen peroxide 1-10 wt. % phosphoric acid balance water Other peracids, such as, perlactic acid, percitric acid, perproprionic acid, perbenzoic acid, perpentenoic acid and perbutyric acid may be used.
Claims20
In a process for the curing of animal hides including the step of contacting the hides with brine, the improvement comprising:
- adding to the brine an effective bactericidal amount of a composition comprising:
- 10-30 wt. % acetic acid
- 5-20 wt. % peracetic acid
- 15-25 wt. % hydrogen peroxide
- 1-10 wt. % phosphoric acid
- balance water.
A process for rejuvenation of a brine solution utilized in curing animal hides, said brine solution containing solid organic material, comprising:
- adding an effective bactericidal and flocculating amount of a composition comprising:
- 10-30 wt. % acetic acid
- 5-20 wt. % peracetic acid
- 15-25 wt. % hydrogen peroxide
- 1-10 wt. % phosphoric acid
- balance water
- and subsequently removing a layer comprising concentrated solid organic materials.
In a process for the curing of animal hides including the step of contacting the hides with brine, the improvement comprising:
- adding to the brine an effective bactericidal amount of a composition comprising:
- 5-20 wt. % of at least one peracid
- 10-30 wt. % of the corresponding acid precursor of said peracid
- 15-25 wt. % hydrogen peroxide
- 1-10 wt. % phosphoric acid
- 0.1-1 wt. % peracid stabilizer
- balance water.
A process for rejuvenation of a brine solution utilized in curing animal hides, said brine solution containing solid organic material, comprising:
- adding an effective bactericidal and flocculating amount of a composition comprising:
- 10-30 wt. % of at least one peracid
- 5-20 wt. % of the corresponding acid precursor of said peracid
- 15-25 wt. % hydrogen peroxide
- 1-10 wt. % phosphoric acid
- 0.1-1 wt. % peracid stabilizer
- balance water
- and subsequently removing a layer comprising concentrated solid organic materials.
Dependencies are inferred from the claim text.