Method for processing of fur skins

FIELD: light industry, in particular, raw material dyeing processes used, for example, in whitening of mink skin fur hair.

SUBSTANCE: method involves providing additional tinning of skin with aqueous composition containing sodium chloride, composition based on low-molecular alcohol polyacetals, mixture of non-ionogen surfactants and cyclic terpenes; whitening for 2.0-4.5 hours with the use of aqueous composition containing sodium chloride, potassium persulfate, composition based on mineral and organic acids as pH stabilizers, mixture of primary fatty alcohols as protective admixture and 30%-hydrogen peroxide; providing reduction with the use of aqueous composition comprising sodium chloride, oxalic acid and mixture of non-ionogen surfactants with cyclic terpenes.

EFFECT: improved consumer properties of fur skins.

2 tbl

 

The invention relates to light industry and can be used in Cyrano-dye production in the processing of fur skins such as mink when the whitening hair.

A method of processing of mink by retanning aqueous composition comprising sodium chloride and tanning agent, staining the water a composition comprising sodium chloride, iron sulfate (II), bleaching aqueous composition comprising sodium chloride, protective additive (Bleach Assist MB), a pH stabilizer (Bleach M-30), hydrogen peroxide, formic acid, bleaching (recovery) water composition that includes sodium chloride, a reducing agent (Bleach LCN), oxalic acid (jos. H. Lowenstein&Sons, Inc. "Technological scheme of processing of fur raw materials", the Agency "Smbprint", , Novosibirsk, 2001).

A method of processing tanned skins by retanning aqueous composition containing sodium chloride, the tanning agent and the organic acid (formic), staining the water a composition containing sulphate of iron (II) and lactic acid, bleaching aqueous composition containing formic acid, the pH stabilizer (Bleach BL), protective agent (Bleach assist MB), sodium chloride, hydrogen peroxide, and clarification (recovery) water composition containing sodium chloride, oxalic acid (Shpak NV Improvement of the processes of dyeing, namely the bellows is on raw materials based on the use of chemical materials company LOWENSTEIN, Novosibirsk, 2000).

The closest analogue is the way to handle Karakul pelts group by retanning aqueous composition comprising sodium chloride and tanning agent, staining the water a composition comprising sodium chloride, iron sulfate (II) and citric acid, bleaching water composition that includes sodium chloride, potassium persulfate, hydrogen peroxide, pH stabilizer, protective additive, and restore water composition containing sodium chloride and oxalic acid (Report R & d to Develop and introduce advanced technology processing raw Astrakhan, Moscow, VNIIMP, 1991, no state reg. 01880063060).

The main objective of the proposed method processing of fur skins aimed at the achievement of the technical result consists in increasing the operational properties of bleached fur skins.

This technical result is achieved in that in the method of processing of fur skins by retanning aqueous composition comprising sodium chloride and tanning agent, staining the water a composition comprising sodium chloride, iron sulfate (II) and citric acid, bleaching water composition that includes sodium chloride, potassium persulfate, hydrogen peroxide, pH stabilizer, protective additive and restore water composition that includes sodium chloride and oxalic acid, according to the invention retanning is syshestvyut at pH 7-8, as a tanning agent use composition-based polyacetale low molecular weight alcohols, in addition, when doublepane, potraviny and restore add the mixture-based nonionic surfactants and cyclic terpenes, and retanning are in a ratio of components of the composition, g/l:

sodium chloride20,0-30,0
composition based polyacetale
low molecular weight alcohols12,0-18,0
a mixture of nonionic surface-active
substances and cyclic terpenes0.5 to 1.5
waterbefore liter;

protravlena are in a ratio of components of the composition, g/l:

sodium chloride30,0-35,0
sulphate of iron (II)0.5 to 1.5
a mixture of nonionic surface-active
substances and cyclic terpenes0.5 to 1.5
waterbefore liter;

the restoration is carried out at a ratio of components of the composition, g/l;

sodium chloride 30,0-35,0
oxalic acid0,5-4,0
a mixture of nonionic surface-active
substances and cyclic terpenes0,5-1,0
waterbefore liter;

and bleaching is carried out for 2.0 to 4.5 hours, the pH stabilizer and protective additives using, respectively, a composition based on mineral salts and organic acids and a mixture of primary fatty alcohols in the following ratio of the components of the composition, g/l:

sodium chloride30,0-40,0
the potassium persulfate5,0-10,0
composition based salts
mineral and organic acids10,0-of 17.0
the mixture of primary fatty alcohols1,0-3,0
hydrogen peroxide 30%a 5.0 to 35.0
waterto liters.

Composition based polyacetale low molecular weight alcohols produced by THE 2484-014-00302474-01 under the brand name of the tanning agent M

The mixture-based nonionic surfactants and cyclic terpenes produced by THE 2484-012-00302474-01 "Drugs Gamma.

Examples of predlozhenogo.potom processing of fur skins (1-3) and the closest analogue summarized in table 1.

Table 2 shows the parameters for mink, processed by the proposed method and the closest analogue.

The proposed method was tested in a production environment. The test results are positive.

The inventive method of processing of fur skins allows you to achieve the desired effect whitening of hair, reducing the negative impacts of bleaching on the hair for 10% (in terms of solubility of the hair and improving the operational properties of the skin (abrasion hair by 20%, the strength of the leather 1.5 times).

Thus the proposed method extends the whitening skins of different types of tanning, in particular chrome tanning, which previously did not bleach; color registration hairline due to the different intensity of bleaching hairs and down hair, and also provides a replacement for imported materials in the processing of fur skins.

The method of processing of fur skins by retanning aqueous composition comprising sodium chloride and tanning agent, staining the water a composition comprising sodium chloride, iron sulfate (II) and citric acid, bleaching water composition that includes sodium chloride, potassium persulfate, hydrogen peroxide stabilizer, pH, protective additive, and restore water composition that includes sodium chloride and oxalic acid, characterized in that the retanning process is carried out at pH 7-8, as a tanning agent use composition-based polyacetale low molecular weight alcohols, in addition, when doublepane, potraviny and restore add the mixture-based nonionic surfactants and cyclic terpenes, and retanning are in a ratio of components of the composition, g/l:

Sodium chloride20,0-30,0
Composition based polyacetale
low molecular weight alcohols12,0-18,0
A mixture of nonionic surface-
active substances and cyclic
terpenes0.5 to 1.5
WaterTo liters

protravlena are in a ratio of components of the composition, g/l:

Sodium chloride30,0-35,0
Sulphate of iron (II)2,0-7,0
Citric acid0.5 to 1.5
A mixture of nonionic surface-active
substances and cyclic terpenes0.5 to 1.5
WaterTo liters

the restoration is carried out at a ratio of components of the composition, g/l:

Sodium chloride30,0-35,0
Oxalic acid0,5-4,0
A mixture of nonionic surface-active
substances and cyclic terpenes0,5-1,0
WaterTo liters

and bleaching is carried out for 2.0 to 4.5 hours, the pH stabilizer and protective additives are used, respectively, a composition based on mineral salts and organic acids and a mixture of primary fatty alcohols in the following ratio of the components of the composition, g/l;

Sodium chloride30,0-40,0
The potassium persulfate5,0-10,0
Composition based on mineral salts and
organic acids10,0-of 17.0
The mixture of primary fatty alcohols1,0-3,0
Hydrogen peroxide 30%a 5.0 to 35.0
WaterTo liters



 

Same patents:

FIELD: light and fur industry.

SUBSTANCE: invention relates to a composition used for whitening hair cover of fur hides. The composition comprises sodium chloride, hydrogen peroxide, potassium persulfate, the composition based on mineral and organic acid salts - "Antikolor 1" or "Antikolor-2" as an agent for stabilizing pH value, and a mixture of primary saturated alcohols - "Antikolor-3" as a protective additive. The composition provides reducing the negative effect of leather and hair cover of hide. The composition can be used in raw-dye manufacture in treatment of hides with pigmented hair cover, for example, hides of karakul group.

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2 tbl

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2 tbl, 5 ex

FIELD: light and fur industry.

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2 tbl

FIELD: light and fur industry.

SUBSTANCE: invention relates to a composition used for whitening hair cover of fur hides. The composition comprises sodium chloride, hydrogen peroxide, potassium persulfate, the composition based on mineral and organic acid salts - "Antikolor 1" or "Antikolor-2" as an agent for stabilizing pH value, and a mixture of primary saturated alcohols - "Antikolor-3" as a protective additive. The composition provides reducing the negative effect of leather and hair cover of hide. The composition can be used in raw-dye manufacture in treatment of hides with pigmented hair cover, for example, hides of karakul group.

EFFECT: valuable properties of composition.

2 tbl

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2 tbl

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2 tbl, 6 ex

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