CN107034324A - Tanning agent and its sheepskin process for tanning for sheepskin - Google Patents
Tanning agent and its sheepskin process for tanning for sheepskin Download PDFInfo
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- 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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- sheepskin
- tanning
- tanning agent
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- 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
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/08—Chemical tanning by organic agents
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- 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
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.
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CN201710452109.2A CN107034324A (en) | 2017-06-15 | 2017-06-15 | Tanning agent and its sheepskin process for tanning for sheepskin |
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CN201710452109.2A CN107034324A (en) | 2017-06-15 | 2017-06-15 | Tanning agent and its sheepskin process for tanning for sheepskin |
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Citations (3)
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 |
-
2017
- 2017-06-15 CN CN201710452109.2A patent/CN107034324A/en not_active Withdrawn
Patent Citations (3)
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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