CN107034324A - Tanning agent and its sheepskin process for tanning for sheepskin - Google Patents

Tanning agent and its sheepskin process for tanning for sheepskin Download PDF

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Publication number
CN107034324A
CN107034324A CN201710452109.2A CN201710452109A CN107034324A CN 107034324 A CN107034324 A CN 107034324A CN 201710452109 A CN201710452109 A CN 201710452109A CN 107034324 A CN107034324 A CN 107034324A
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Prior art keywords
parts
sheepskin
tanning
tanning agent
weight ratio
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CN201710452109.2A
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Chinese (zh)
Inventor
王星河
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Quanzhou Xincai Trade Co Ltd
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Quanzhou Xincai Trade Co Ltd
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Priority to CN201710452109.2A priority Critical patent/CN107034324A/en
Publication of CN107034324A publication Critical patent/CN107034324A/en
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    • CCHEMISTRY; METALLURGY
    • C14SKINS; HIDES; PELTS; LEATHER
    • C14CCHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C3/00Tanning; Compositions for tanning
    • C14C3/02Chemical tanning
    • C14C3/08Chemical tanning by organic agents

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Abstract

The present invention relates to a kind of tanning agent for sheepskin and its sheepskin process for tanning, the tanning agent is made up of maleic acid, diisocyanate, Lauxite, the cyclic ketones of nitrogen penta, dibutyl itaconate, double carboxyethyl amine, sodium phthalate, 2-carboxybenzaldehyde, di-n-butylamine, fatty aldehyde and ammonium persulfate, and the process for tanning is that sheepskin is sequentially passed through into immersion, fleshing, softening, tanning and the processing for drying process.Targetedly sheepskin plays good tanning effect to the tanning agent of the present invention, process can effectively be simplified by carrying out tanning to sheepskin using the tanning agent of the present invention, sheepskin only by immersion, fleshing, softening, tanning and need to dry the processing of process and can obtain sheep, tanning processes possess fat-reducing function to sheepskin, process for tanning is effectively simplified, tanning efficiency is also effectively lifted, production cost is effectively reduced, and obtained sheep possesses soft fine and smooth, wear-resisting, the elastic superperformance such as good.

Description

Tanning agent and its sheepskin process for tanning for sheepskin
Technical field
The present invention relates to a kind of tanning agent and its process for tanning, a kind of tanning agent for being particularly suitable for use in sheepskin and its sheep are particularly related to Skin process for tanning.
Background technology
Leather is through the not perishable Animal Skin of denaturation obtained by physics, the chemical process such as depilation and tanning.Leather It is made up of natural protein fibre in three dimensions close weave, there is a kind of special grain layer on its surface, with nature Graining and gloss, comfortable feel.
Current leather tanning process is complex, and such as the Chinese invention patent of Application No. 201310725180.5 is provided A kind of process for tanning goat leather by synthetic tanning agent, uses the tanning processes of its tanning agent to select skin → immersion → degreasing → water-bath → multiple Immersion → fleshing → secondary degreasing → pickling → softening → get damp again perching for tanning → neutralization → water dumping is dried →.The tanning processes are needed The processes such as multiple immersion, degreasing are wanted, technique is complex, and the tanning of leather is inefficient, production cost is high.
The content of the invention
The present invention provides a kind of tanning agent and its sheepskin process for tanning for sheepskin, to overcome current part process for tanning The problem of tanning processes of presence are complicated, efficiency is low, cost is high.
The present invention is adopted the following technical scheme that:
For the tanning agent of sheepskin, the preparation of the tanning agent is made up of following raw materials by weight ratio:6~11 parts of maleic two Acid, 4~6 parts of diisocyanate, 9~13 parts of Lauxite, 1~3 part of the cyclic ketones of nitrogen penta, 11~15 parts of the fourth of itaconic acid two Ester, 7~9 parts of double carboxyethyl amine, 15~17 parts of sodium phthalate, 3~6 parts of 2-carboxybenzaldehyde, the two of 4~7 parts N-butylamine, 5~8 parts of fatty aldehyde and 8~11 parts of ammonium persulfate.
Further, the preparation of the tanning agent is made up of following raw materials by weight ratio:7.5~9.5 parts of maleic Diacid, 4.5~5.5 parts of diisocyanate, 10~12 parts of Lauxite, 1.5~2.5 parts of the cyclic ketones of nitrogen penta, 12~14 parts Dibutyl itaconate, 7.5~8.5 parts of double carboxyethyl amine, 16~16.5 parts of sodium phthalate, 3.5~4.5 parts of neighbour Carboxyl benzaldehyde, 4.5~5.5 parts of di-n-butylamine, 6.5~7.5 parts of fatty aldehyde and 9~10 parts of ammonium persulfate.
More specifically, the raw material proportioning of preferably following five kinds of tanning agents:
First, the preparation of the tanning agent is made up of following raw materials by weight ratio:It is 8.5 parts of maleic acid, the two of 5 parts different Cyanate, 11 parts of Lauxite, 2 parts of the cyclic ketones of nitrogen penta, 13 parts of dibutyl itaconate, 8 parts of double carboxyethyl amine, 16 parts Sodium phthalate, 4.5 parts of 2-carboxybenzaldehyde, 5.5 parts of di-n-butylamine, 6.5 parts of fatty aldehyde and 10 parts of persulfuric acid Ammonium.
Second, the preparation of the tanning agent is made up of following raw materials by weight ratio:7.5 parts of maleic acid, 5.5 parts Diisocyanate, 12 parts of Lauxite, 1.5 parts of the cyclic ketones of nitrogen penta, 12 parts of dibutyl itaconate, 8.5 parts of double carboxylic second Base amine, 16.5 parts of sodium phthalate, 3.5 parts of 2-carboxybenzaldehyde, 4.5 parts of di-n-butylamine, 7.5 parts of fatty aldehyde and 9 parts of ammonium persulfate.
Third, the preparation of the tanning agent is made up of following raw materials by weight ratio:9.5 parts of maleic acid, 4.5 parts Diisocyanate, 10 parts of Lauxite, 2.5 parts of the cyclic ketones of nitrogen penta, 14 parts of dibutyl itaconate, 7.5 parts of double carboxylic second Base amine, 16 parts of sodium phthalate, 4.5 parts of 2-carboxybenzaldehyde, 5.5 parts of di-n-butylamine, 6.5 parts of fatty aldehyde and 9.5 parts of ammonium persulfate.
Fourth, the preparation of the tanning agent is made up of following raw materials by weight ratio:6 parts of maleic acid, the two of 6 parts Isocyanates, 13 parts of Lauxite, 1 part of the cyclic ketones of nitrogen penta, 11 parts of dibutyl itaconate, 9 parts of double carboxyethyl amine, 15 parts Sodium phthalate, 6 parts of 2-carboxybenzaldehyde, 7 parts of di-n-butylamine, 8 parts of fatty aldehyde and 11 parts of ammonium persulfate.
Fifth, the preparation of the tanning agent is made up of following raw materials by weight ratio:11 parts of maleic acid, 4 parts Diisocyanate, 9 parts of Lauxite, 3 parts of the cyclic ketones of nitrogen penta, 15 parts of dibutyl itaconate, 7 parts of double carboxyethyl amine, 17 The sodium phthalate, 3 parts of 2-carboxybenzaldehyde, 4 parts of di-n-butylamine, 5 parts of fatty aldehyde and 8 parts of ammonium persulfate of part.
The process for tanning of sheepskin, sheepskin is only handled by the following processes carried out successively:
A. soak:Plucked sheepskin is immersed in the salt solution that PH is 4~5, soak time is 6~8 hours;
B. fleshing:The meat of sheepskin is rooted out by fleshing machine;
C. soften:Sheepskin is immersed in the salt solution that PH is 4~5, soak time is 15~20 minutes, then sheepskin passes through 4~8 Hour drains;
D. tanning:The raw material of the above-mentioned tanning agent for sheepskin is added in organic solvent, the weight ratio of feed liquid is 1:15~ 25, sheepskin is immersed in tanning agent solution, soak time is 28~35 hours, and sheepskin was drained after taking out by 3~4 hours;
E. dry:Sheep is can obtain after natural drying.
Further, above-mentioned organic solvent is ethanol, glycerine, isooctane, isopropyl ether, methyl isopropyl ketone, methyl tetrahydrochysene One or more kinds of combinations in furans, petroleum ether, trichloroacetic acid, trifluoroacetic acid.
From the above-mentioned description of this invention, compared to the prior art, the invention has the advantages that:The tan of the present invention Targetedly sheepskin plays good tanning effect for agent, and carrying out tanning to sheepskin using the tanning agent of the present invention can effectively simplify Process, sheepskin only by immersion, fleshing, softening, tanning and need to dry the processing of process and can obtain sheep, tanning processes pair Sheepskin possesses fat-reducing function, and process for tanning is effectively simplified, and tanning efficiency is also effectively lifted, and production cost is had Effect reduction, and obtained sheep possesses soft fine and smooth, wear-resisting, the elastic superperformance such as good.
Embodiment
Embodiment one
The preparation of the tanning agent is made up of following raw materials by weight ratio:8.5 parts of maleic acid, 5 parts of two isocyanic acids Ester, 11 parts of Lauxite, 2 parts of the cyclic ketones of nitrogen penta, 13 parts of dibutyl itaconate, 8 parts of double carboxyethyl amine, 16 parts of adjacent benzene Sodium diformate, 4.5 parts of 2-carboxybenzaldehyde, 5.5 parts of di-n-butylamine, 6.5 parts of fatty aldehyde and 10 parts of ammonium persulfate.
Process for tanning using the sheepskin of the tanning agent of present embodiment is, sheepskin is only by following processes for carrying out successively Reason:
A. soak:Plucked sheepskin is immersed in the salt solution that PH is 4.5, soak time is 6 hours;
B. fleshing:The meat of sheepskin is rooted out by fleshing machine;
C. soften:Sheepskin is immersed in the salt solution that PH is 4.5, soak time is 15~17 minutes, then sheepskin passes through 4~8 Hour drains;
D. tanning:The raw material of the tanning agent for sheepskin of present embodiment is added in organic solvent, the weight ratio of feed liquid is 1:23~25, sheepskin is immersed in tanning agent solution, soak time is 28~30 hours, and sheepskin was drained after taking out by 3 hours; Organic solvent is ethanol and glycerine;
E. dry:Sheep is can obtain after natural drying.
Present embodiment is optimal embodiment, and targetedly sheepskin plays good tanning to the tanning agent of present embodiment Effect, process can effectively be simplified by carrying out tanning to sheepskin using the tanning agent of the present invention, and sheepskin need to only pass through immersion, fleshing, soft Change, tanning and dry the processing of process and can obtain sheep, tanning processes possess fat-reducing function to sheepskin, and process for tanning is obtained Effectively simplify, tanning efficiency is also effectively lifted, and production cost is effectively reduced, and obtained sheep possesses soft Soft fine and smooth, wear-resisting, the elastic superperformance such as good.
Embodiment two
The preparation of the tanning agent of present embodiment is made up of following raw materials by weight ratio:7.5 parts of maleic acid, 5.5 The diisocyanate, 12 parts of Lauxite, 1.5 parts of the cyclic ketones of nitrogen penta, 12 parts of dibutyl itaconate, 8.5 parts of double carboxylics of part Ethylamine, 16.5 parts of sodium phthalate, 3.5 parts of 2-carboxybenzaldehyde, 4.5 parts of di-n-butylamine, 7.5 parts of fatty aldehyde With 9 parts of ammonium persulfate.
Process for tanning using the sheepskin of the tanning agent of present embodiment is, sheepskin is only by following processes for carrying out successively Reason:
A. soak:Plucked sheepskin is immersed in the salt solution that PH is 5, soak time is 8 hours;
B. fleshing:The meat of sheepskin is rooted out by fleshing machine;
C. soften:Sheepskin is immersed in the salt solution that PH is 5, soak time is 20 minutes, then sheepskin was dripped by 4~8 hours It is dry;
D. tanning:The raw material of the tanning agent for sheepskin of present embodiment is added in organic solvent, the weight ratio of feed liquid is 1:22~24, sheepskin is immersed in tanning agent solution, soak time is 29~32 hours, sheepskin was dripped after taking out by 3~4 hours It is dry;Organic solvent is glycerine and isooctane;
E. dry:Sheep is can obtain after natural drying.
Embodiment three
The preparation of the tanning agent of present embodiment is made up of following raw materials by weight ratio:9.5 parts of maleic acid, 4.5 The diisocyanate, 10 parts of Lauxite, 2.5 parts of the cyclic ketones of nitrogen penta, 14 parts of dibutyl itaconate, 7.5 parts of double carboxylics of part Ethylamine, 16 parts of sodium phthalate, 4.5 parts of 2-carboxybenzaldehyde, 5.5 parts of di-n-butylamine, 6.5 parts of fatty aldehyde and 9.5 parts of ammonium persulfate.
Process for tanning using the sheepskin of the tanning agent of present embodiment is, sheepskin is only by following processes for carrying out successively Reason:
A. soak:Plucked sheepskin is immersed in the salt solution that PH is 4, soak time is 64 hours;
B. fleshing:The meat of sheepskin is rooted out by fleshing machine;
C. soften:Sheepskin is immersed in the salt solution that PH is 4, soak time is 15 minutes, then sheepskin was dripped by 4~8 hours It is dry;
D. tanning:The raw material of the tanning agent for sheepskin of present embodiment is added in organic solvent, the weight ratio of feed liquid is 1:15~18, sheepskin is immersed in tanning agent solution, soak time is 28~30 hours, sheepskin was dripped after taking out by 3~4 hours It is dry;Organic solvent is glycerine;
E. dry:Sheep is can obtain after natural drying.
Embodiment four
The preparation of the tanning agent of present embodiment is made up of following raw materials by weight ratio:6 parts of maleic acid, 6 parts Diisocyanate, 13 parts of Lauxite, 1 part of the cyclic ketones of nitrogen penta, 11 parts of dibutyl itaconate, 9 parts of double carboxyethyl amine, 15 The sodium phthalate, 6 parts of 2-carboxybenzaldehyde, 7 parts of di-n-butylamine, 8 parts of fatty aldehyde and 11 parts of ammonium persulfate of part.
Process for tanning using the sheepskin of the tanning agent of present embodiment is, sheepskin is only by following processes for carrying out successively Reason:
A. soak:Plucked sheepskin is immersed in the salt solution that PH is 4.5, soak time is 7 hours;
B. fleshing:The meat of sheepskin is rooted out by fleshing machine;
C. soften:Sheepskin is immersed in the salt solution that PH is 4.5, soak time is 18 minutes, then sheepskin passes through 4~8 hours Drain;
D. tanning:The raw material of the tanning agent for sheepskin of present embodiment is added in organic solvent, the weight ratio of feed liquid is 1:18~19, sheepskin is immersed in tanning agent solution, soak time is 30~33 hours, sheepskin was dripped after taking out by 3~4 hours It is dry;Organic solvent is methyltetrahydrofuran and petroleum ether;
E. dry:Sheep is can obtain after natural drying.
Embodiment five
The preparation of the tanning agent of present embodiment is made up of following raw materials by weight ratio:11 parts of maleic acid, 4 parts Diisocyanate, 9 parts of Lauxite, 3 parts of the cyclic ketones of nitrogen penta, 15 parts of dibutyl itaconate, 7 parts of double carboxyethyl amine, 17 The sodium phthalate, 3 parts of 2-carboxybenzaldehyde, 4 parts of di-n-butylamine, 5 parts of fatty aldehyde and 8 parts of ammonium persulfate of part.
Process for tanning using the sheepskin of the tanning agent of present embodiment is, sheepskin is only by following processes for carrying out successively Reason:
A. soak:Plucked sheepskin is immersed in the salt solution that PH is 4.5, soak time is 8 hours;
B. fleshing:The meat of sheepskin is rooted out by fleshing machine;
C. soften:Sheepskin is immersed in the salt solution that PH is 4.5, soak time is 20 minutes, then sheepskin passes through 4~8 hours Drain;
D. tanning:The raw material of the tanning agent for sheepskin of present embodiment is added in organic solvent, the weight ratio of feed liquid is 1:21~23, sheepskin is immersed in tanning agent solution, soak time is 33~35 hours, sheepskin was dripped after taking out by 3~4 hours It is dry;Organic solvent is trichloroacetic acid;
E. dry:Sheep is can obtain after natural drying.
Embodiment six
The preparation of the tanning agent of present embodiment is made up of following raw materials by weight ratio:8.5 parts of maleic acid, 5.5 The diisocyanate of part, 11.5 parts of Lauxite, 2.5 parts of the cyclic ketones of nitrogen penta, 12.5 parts of dibutyl itaconate, 8 parts of pair Carboxyethyl amine, 16 parts of sodium phthalate, 4 parts of 2-carboxybenzaldehyde, 4.5 parts of di-n-butylamine, 7.2 parts of fatty aldehyde and 9.8 parts of ammonium persulfate.
Process for tanning using the sheepskin of the tanning agent of present embodiment is, sheepskin is only by following processes for carrying out successively Reason:
A. soak:Plucked sheepskin is immersed in the salt solution that PH is 4.5, soak time is 6.5 hours;
B. fleshing:The meat of sheepskin is rooted out by fleshing machine;
C. soften:Sheepskin is immersed in the salt solution that PH is 4.5, soak time is 17 minutes, then sheepskin passes through 4~8 hours Drain;
D. tanning:The raw material of the tanning agent for sheepskin of present embodiment is added in organic solvent, the weight ratio of feed liquid is 1:18~21, sheepskin is immersed in tanning agent solution, soak time is 29~30 hours, sheepskin was dripped after taking out by 3~4 hours It is dry;Organic solvent is glycerine, trichloroacetic acid and trifluoroacetic acid;
E. dry:Sheep is can obtain after natural drying.
Embodiment seven
The preparation of the tanning agent of present embodiment is made up of following raw materials by weight ratio:9 parts of maleic acid, 5.2 parts Diisocyanate, 10.5 parts of Lauxite, 1.8 parts of the cyclic ketones of nitrogen penta, 13.3 parts of dibutyl itaconate, 7.8 parts double Carboxyethyl amine, 16.3 parts of sodium phthalate, 4.2 parts of 2-carboxybenzaldehyde, 5.2 parts of di-n-butylamine, 7.2 parts of fat Aldehyde and 9 parts of ammonium persulfate.
Process for tanning using the sheepskin of the tanning agent of present embodiment is, sheepskin is only by following processes for carrying out successively Reason:
A. soak:Plucked sheepskin is immersed in the salt solution that PH is 4.5, soak time is 7.5 hours;
B. fleshing:The meat of sheepskin is rooted out by fleshing machine;
C. soften:Sheepskin is immersed in the salt solution that PH is 4.5, soak time is 15 minutes, then sheepskin passes through 4~8 hours Drain;
D. tanning:The raw material of the tanning agent for sheepskin of present embodiment is added in organic solvent, the weight ratio of feed liquid is 1:15~17, sheepskin is immersed in tanning agent solution, soak time is 30~32 hours, sheepskin was dripped after taking out by 3~4 hours It is dry;Organic solvent is isooctane, isopropyl ether and methyltetrahydrofuran;
E. dry:Sheep is can obtain after natural drying.
The embodiment of the present invention is above are only, but the design concept of the present invention is not limited thereto, it is all to utilize this Conceive the change that unsubstantiality is carried out to the present invention, the behavior for invading the scope of the present invention all should be belonged to.

Claims (9)

1. the tanning agent for sheepskin, it is characterised in that the preparation of the tanning agent is made up of following raw materials by weight ratio:6~ 11 parts of maleic acid, 4~6 parts of diisocyanate, 9~13 parts of Lauxite, 1~3 part of the cyclic ketones of nitrogen penta, 11~15 The dibutyl itaconate of part, 7~9 parts of double carboxyethyl amine, 15~17 parts of sodium phthalate, 3~6 parts of adjacent carboxyl benzene first Aldehyde, 4~7 parts of di-n-butylamine, 5~8 parts of fatty aldehyde and 8~11 parts of ammonium persulfate.
2. it is used for the tanning agent of sheepskin as claimed in claim 1, it is characterised in that the preparation of the tanning agent is by by weight ratio Following raw materials are constituted:7.5~9.5 parts of maleic acid, 4.5~5.5 parts of diisocyanate, 10~12 parts of ureaformaldehyde tree Fat, 1.5~2.5 parts of the cyclic ketones of nitrogen penta, 12~14 parts of dibutyl itaconate, 7.5~8.5 parts of double carboxyethyl amine, 16~ 16.5 parts of sodium phthalate, 3.5~4.5 parts of 2-carboxybenzaldehyde, 4.5~5.5 parts of di-n-butylamine, 6.5~7.5 parts Fatty aldehyde and 9~10 parts of ammonium persulfate.
3. it is used for the tanning agent of sheepskin as claimed in claim 2, it is characterised in that the preparation of the tanning agent is by by weight ratio Following raw materials are constituted:8.5 parts of maleic acid, 5 parts of diisocyanate, 11 parts of Lauxite, 2 parts of the cyclic ketones of nitrogen penta, 13 parts of dibutyl itaconate, 8 parts of double carboxyethyl amine, 16 parts of sodium phthalate, 4.5 parts of 2-carboxybenzaldehyde, 5.5 The di-n-butylamine, 6.5 parts of fatty aldehyde and 10 parts of ammonium persulfate of part.
4. it is used for the tanning agent of sheepskin as claimed in claim 2, it is characterised in that the preparation of the tanning agent is by by weight ratio Following raw materials are constituted:7.5 parts of maleic acid, 5.5 parts of diisocyanate, 12 parts of Lauxite, 1.5 parts of the ring of nitrogen penta Ketone, 12 parts of dibutyl itaconate, 8.5 parts of double carboxyethyl amine, 16.5 parts of sodium phthalate, 3.5 parts of adjacent carboxyl benzene Formaldehyde, 4.5 parts of di-n-butylamine, 7.5 parts of fatty aldehyde and 9 parts of ammonium persulfate.
5. it is used for the tanning agent of sheepskin as claimed in claim 2, it is characterised in that the preparation of the tanning agent is by by weight ratio Following raw materials are constituted:9.5 parts of maleic acid, 4.5 parts of diisocyanate, 10 parts of Lauxite, 2.5 parts of the ring of nitrogen penta Ketone, 14 parts of dibutyl itaconate, 7.5 parts of double carboxyethyl amine, 16 parts of sodium phthalate, 4.5 parts of adjacent carboxyl benzene first Aldehyde, 5.5 parts of di-n-butylamine, 6.5 parts of fatty aldehyde and 9.5 parts of ammonium persulfate.
6. it is used for the tanning agent of sheepskin as claimed in claim 1, it is characterised in that the preparation of the tanning agent is by by weight ratio Following raw materials are constituted:6 parts of maleic acid, 6 parts of diisocyanate, 13 parts of Lauxite, 1 part of the cyclic ketones of nitrogen penta, 11 Part dibutyl itaconate, 9 parts of double carboxyethyl amine, 15 parts of sodium phthalate, 6 parts of 2-carboxybenzaldehyde, the two of 7 parts N-butylamine, 8 parts of fatty aldehyde and 11 parts of ammonium persulfate.
7. it is used for the tanning agent of sheepskin as claimed in claim 1, it is characterised in that the preparation of the tanning agent is by by weight ratio Following raw materials are constituted:11 parts of maleic acid, 4 parts of diisocyanate, 9 parts of Lauxite, 3 parts of the cyclic ketones of nitrogen penta, 15 Part dibutyl itaconate, 7 parts of double carboxyethyl amine, 17 parts of sodium phthalate, 3 parts of 2-carboxybenzaldehyde, the two of 4 parts N-butylamine, 5 parts of fatty aldehyde and 8 parts of ammonium persulfate.
8. the process for tanning of sheepskin, it is characterised in that sheepskin is only handled by the following processes carried out successively:
A. soak:Plucked sheepskin is immersed in the salt solution that PH is 4~5, soak time is 6~8 hours;
B. fleshing:The meat of sheepskin is rooted out by fleshing machine;
C. soften:Sheepskin is immersed in the salt solution that PH is 4~5, soak time is 15~20 minutes, then sheepskin passes through 4~8 Hour drains;
D. tanning:The raw material of any described tanning agent for sheepskin of claim 1 to 7 is added in organic solvent, feed liquid Weight ratio be 1:15~25, sheepskin is immersed in tanning agent solution, soak time be 28~35 hours, sheepskin take out after by Drain within 3~4 hours;
E. dry:Sheep is can obtain after natural drying.
9. the process for tanning of sheepskin as claimed in claim 8, it is characterised in that:The organic solvent is ethanol, glycerine, different One or more in octane, isopropyl ether, methyl isopropyl ketone, methyltetrahydrofuran, petroleum ether, trichloroacetic acid, trifluoroacetic acid Combination.
CN201710452109.2A 2017-06-15 2017-06-15 Tanning agent and its sheepskin process for tanning for sheepskin Withdrawn CN107034324A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101435003A (en) * 2008-12-09 2009-05-20 朗盛(无锡)化工有限公司 White leather tanning agent and production method thereof
CN102796832A (en) * 2012-08-30 2012-11-28 陕西科技大学 Production process for leather for painting
CN103451026A (en) * 2013-09-13 2013-12-18 北京泛博化学股份有限公司 Modified glutaraldehyde tanning agent and preparation method and applications thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101435003A (en) * 2008-12-09 2009-05-20 朗盛(无锡)化工有限公司 White leather tanning agent and production method thereof
CN102796832A (en) * 2012-08-30 2012-11-28 陕西科技大学 Production process for leather for painting
CN103451026A (en) * 2013-09-13 2013-12-18 北京泛博化学股份有限公司 Modified glutaraldehyde tanning agent and preparation method and applications thereof

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