CN107090527A - Tanning agent and its crocodile skin process for tanning for crocodile skin - Google Patents
Tanning agent and its crocodile skin process for tanning for crocodile skin Download PDFInfo
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- CN107090527A CN107090527A CN201710452093.5A CN201710452093A CN107090527A CN 107090527 A CN107090527 A CN 107090527A CN 201710452093 A CN201710452093 A CN 201710452093A CN 107090527 A CN107090527 A CN 107090527A
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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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- 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
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- 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
- C14B1/40—Softening or making skins or leather supple, e.g. by staking, boarding, or crippling machines, by dry mills
-
- 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
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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
- C14C3/04—Mineral tanning
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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
- C14C3/16—Chemical tanning by organic agents using aliphatic aldehydes
-
- 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
- C14C3/22—Chemical tanning by organic agents using polymerisation products
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- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The present invention relates to a kind of tanning agent for crocodile skin and its crocodile skin process for tanning, the tanning agent is made up of fatty aldehyde, resorcinol calixarenes, Lauxite, polyvinylpyrrolidone, methylene-succinic acid, double carboxyethyl amine, sodium phthalate, 2-carboxybenzaldehyde, di-n-butylamine, maleic acid and ammonium persulfate, and the process for tanning is that crocodile skin is sequentially passed through into immersion, fleshing, softening, tanning and the processing for drying process.Targetedly crocodile skin plays good tanning effect to the tanning agent of the present invention, process can effectively be simplified by carrying out tanning to crocodile skin using the tanning agent of the present invention, crocodile skin only by immersion, fleshing, softening, tanning and need to dry the processing of process and can obtain crocodile, tanning processes possess fat-reducing function to crocodile skin, process for tanning is effectively simplified, tanning efficiency is also effectively lifted, production cost is effectively reduced, and obtained crocodile 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, particularly relate to a kind of tanning agent for being particularly suitable for use in crocodile skin and its
Crocodile 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 crocodile skin process for tanning for crocodile skin, to overcome current part tanning
The problem of tanning processes that technique is present are complicated, efficiency is low, cost is high.
The present invention is adopted the following technical scheme that：
For the tanning agent of crocodile skin, the preparation of the tanning agent is made up of following raw materials by weight ratio：6~11 parts of fat
Aldehyde, 4~6 parts of resorcinol calixarenes, 9~13 parts of Lauxite, 1~3 part of polyvinylpyrrolidone, 11~15 parts
Methylene-succinic acid, 7~9 parts of double carboxyethyl amine, 15~17 parts of sodium phthalate, 3~6 parts of 2-carboxybenzaldehyde, 4
~7 parts of di-n-butylamine, 5~8 parts of maleic acid 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 fatty aldehyde,
4.5~5.5 parts of resorcinol calixarenes, 10~12 parts of Lauxite, 1.5~2.5 parts of polyvinylpyrrolidone, 12~
14 parts of methylene-succinic acid, 7.5~8.5 parts of double carboxyethyl amine, 16~16.5 parts of sodium phthalate, 3.5~4.5 parts
2-carboxybenzaldehyde, 4.5~5.5 parts of di-n-butylamine, 6.5~7.5 parts of maleic acid and 9~10 parts of persulfuric acid
Ammonium.
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：8.5 parts of fatty aldehyde, 5 parts of resorcinol
Calixarenes, 11 parts of Lauxite, 2 parts of polyvinylpyrrolidone, 13 parts of methylene-succinic acid, 8 parts of double carboxyethyl amine,
16 parts of sodium phthalate, 4.5 parts of 2-carboxybenzaldehyde, 5.5 parts of di-n-butylamine, 6.5 parts of maleic acid and 10
The ammonium persulfate of part.
Second, the preparation of the tanning agent is made up of following raw materials by weight ratio：Between 7.5 parts of fatty aldehyde, 5.5 parts
Benzenediol calixarenes, 12 parts of Lauxite, 1.5 parts of polyvinylpyrrolidone, 12 parts of methylene-succinic acid, 8.5 parts
Double carboxyethyl amine, 16.5 parts of sodium phthalate, 3.5 parts of 2-carboxybenzaldehyde, 4.5 parts of di-n-butylamine, 7.5 parts suitable
Butene dioic acid and 9 parts of ammonium persulfate.
Third, the preparation of the tanning agent is made up of following raw materials by weight ratio：Between 9.5 parts of fatty aldehyde, 4.5 parts
Benzenediol calixarenes, 10 parts of Lauxite, 2.5 parts of polyvinylpyrrolidone, 14 parts of methylene-succinic acid, 7.5 parts
Double carboxyethyl amine, 16 parts of sodium phthalate, 4.5 parts of 2-carboxybenzaldehyde, 5.5 parts of di-n-butylamine, 6.5 parts of suitable fourth
Enedioic acid 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 fatty aldehyde, 6 parts of isophthalic two
Phenol calixarenes, 13 parts of Lauxite, 1 part of polyvinylpyrrolidone, 11 parts of methylene-succinic acid, 9 parts of double carboxyethyls
Amine, 15 parts of sodium phthalate, 6 parts of 2-carboxybenzaldehyde, 7 parts of di-n-butylamine, 8 parts of maleic acid and 11 parts
Ammonium persulfate.
Fifth, the preparation of the tanning agent is made up of following raw materials by weight ratio：11 parts of fatty aldehyde, 4 parts of isophthalic
Diphenol calixarenes, 9 parts of Lauxite, 3 parts of polyvinylpyrrolidone, 15 parts of methylene-succinic acid, 7 parts of double carboxyethyls
Amine, 17 parts of sodium phthalate, 3 parts of 2-carboxybenzaldehyde, 4 parts of di-n-butylamine, 5 parts of maleic acid and 8 parts
Ammonium persulfate.
The process for tanning of crocodile skin, crocodile skin is only handled by the following processes carried out successively：
A. soak：Plucked crocodile skin is immersed in the salt solution that PH is 4~5, soak time is 6~8 hours；
B. fleshing：The meat of crocodile skin is rooted out by fleshing machine；
C. soften：Crocodile skin is immersed in the salt solution that PH is 4~5, soak time is 15~20 minutes, then crocodile skin passes through
Drain within 4~8 hours；
D. tanning：The raw material of the above-mentioned tanning agent for crocodile skin is added in organic solvent, the weight ratio of feed liquid is 1:15
~25, crocodile skin is immersed in tanning agent solution, soak time is 28~35 hours, crocodile skin was dripped after taking out by 3~4 hours
It is dry；
E. dry：Crocodile 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 crocodile skin plays good tanning effect for agent, and carrying out tanning to crocodile skin using the tanning agent of the present invention can be effective
Simplify process, crocodile skin only by immersion, fleshing, softening, tanning and need to dry the processing of process and can obtain crocodile, tan
Process processed possesses fat-reducing function to crocodile skin, and process for tanning is effectively simplified, and tanning efficiency is also effectively lifted, production
Cost is effectively reduced, and obtained crocodile 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 fatty aldehyde, 5 parts of resorcinol cup virtue
Hydrocarbon, 11 parts of Lauxite, 2 parts of polyvinylpyrrolidone, 13 parts of methylene-succinic acid, 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 maleic acid and 10 parts
Ammonium persulfate.
Process for tanning using the crocodile skin of the tanning agent of present embodiment is, following works of the crocodile skin only by carrying out successively
Sequence processing：
A. soak：Plucked crocodile skin is immersed in the salt solution that PH is 4.5, soak time is 6 hours；
B. fleshing：The meat of crocodile skin is rooted out by fleshing machine；
C. soften：Crocodile skin is immersed in the salt solution that PH is 4.5, soak time is 15~17 minutes, and then crocodile skin passes through 4
Drain within~8 hours；
D. tanning：The raw material of the tanning agent for crocodile skin of present embodiment is added in organic solvent, the weight ratio of feed liquid
For 1:23~25, crocodile skin is immersed in tanning agent solution, soak time is 28~30 hours, and crocodile skin is small by 3 after taking out
When drain；Organic solvent is ethanol and glycerine；
E. dry：Crocodile is can obtain after natural drying.
Present embodiment is optimal embodiment, and targetedly crocodile skin plays good tan to the tanning agent of present embodiment
Make and use, tanning is carried out to crocodile skin using the tanning agent of the present invention can effectively simplify process, and crocodile skin need to only pass through immersion, go
Meat, softening, tanning and dry the processing of process and can obtain crocodile, tanning processes possess fat-reducing function, tan to crocodile skin
Technique processed is effectively simplified, and tanning efficiency is also effectively lifted, and production cost is effectively reduced, and obtained crocodile
Fish skin leather possesses 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 fatty aldehyde, 5.5 parts
Resorcinol calixarenes, 12 parts of Lauxite, 1.5 parts of polyvinylpyrrolidone, 12 parts of methylene-succinic acid, 8.5 parts
Double carboxyethyl amine, 16.5 parts of sodium phthalate, 3.5 parts of 2-carboxybenzaldehyde, 4.5 parts of di-n-butylamine, 7.5 parts
Maleic acid and 9 parts of ammonium persulfate.
Process for tanning using the crocodile skin of the tanning agent of present embodiment is, following works of the crocodile skin only by carrying out successively
Sequence processing：
A. soak：Plucked crocodile skin is immersed in the salt solution that PH is 5, soak time is 8 hours；
B. fleshing：The meat of crocodile skin is rooted out by fleshing machine；
C. soften：Crocodile skin is immersed in the salt solution that PH is 5, soak time is 20 minutes, and then crocodile skin is small by 4~8
When drain；
D. tanning：The raw material of the tanning agent for crocodile skin of present embodiment is added in organic solvent, the weight ratio of feed liquid
For 1:22~24, crocodile skin is immersed in tanning agent solution, soak time is 29~32 hours, by 3~4 after crocodile skin taking-up
Hour drains；Organic solvent is glycerine and isooctane；
E. dry：Crocodile 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 fatty aldehyde, 4.5 parts
Resorcinol calixarenes, 10 parts of Lauxite, 2.5 parts of polyvinylpyrrolidone, 14 parts of methylene-succinic acid, 7.5 parts
Double carboxyethyl amine, 16 parts of sodium phthalate, 4.5 parts of 2-carboxybenzaldehyde, 5.5 parts of di-n-butylamine, 6.5 parts suitable
Butene dioic acid and 9.5 parts of ammonium persulfate.
Process for tanning using the crocodile skin of the tanning agent of present embodiment is, following works of the crocodile skin only by carrying out successively
Sequence processing：
A. soak：Plucked crocodile skin is immersed in the salt solution that PH is 4, soak time is 64 hours；
B. fleshing：The meat of crocodile skin is rooted out by fleshing machine；
C. soften：Crocodile skin is immersed in the salt solution that PH is 4, soak time is 15 minutes, and then crocodile skin is small by 4~8
When drain；
D. tanning：The raw material of the tanning agent for crocodile skin of present embodiment is added in organic solvent, the weight ratio of feed liquid
For 1:15~18, crocodile skin is immersed in tanning agent solution, soak time is 28~30 hours, by 3~4 after crocodile skin taking-up
Hour drains；Organic solvent is glycerine；
E. dry：Crocodile 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 fatty aldehyde, 6 parts of isophthalic
Diphenol calixarenes, 13 parts of Lauxite, 1 part of polyvinylpyrrolidone, 11 parts of methylene-succinic acid, 9 parts of double carboxylic second
Base amine, 15 parts of sodium phthalate, 6 parts of 2-carboxybenzaldehyde, 7 parts of di-n-butylamine, 8 parts of maleic acid and 11 parts
Ammonium persulfate.
Process for tanning using the crocodile skin of the tanning agent of present embodiment is, following works of the crocodile skin only by carrying out successively
Sequence processing：
A. soak：Plucked crocodile skin is immersed in the salt solution that PH is 4.5, soak time is 7 hours；
B. fleshing：The meat of crocodile skin is rooted out by fleshing machine；
C. soften：Crocodile skin is immersed in the salt solution that PH is 4.5, soak time is 18 minutes, then crocodile skin passes through 4~8
Hour drains；
D. tanning：The raw material of the tanning agent for crocodile skin of present embodiment is added in organic solvent, the weight ratio of feed liquid
For 1:18~19, crocodile skin is immersed in tanning agent solution, soak time is 30~33 hours, by 3~4 after crocodile skin taking-up
Hour drains；Organic solvent is methyltetrahydrofuran and petroleum ether；
E. dry：Crocodile 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 fatty aldehyde, 4 parts of isophthalic
Diphenol calixarenes, 9 parts of Lauxite, 3 parts of polyvinylpyrrolidone, 15 parts of methylene-succinic acid, 7 parts of double carboxyethyls
Amine, 17 parts of sodium phthalate, 3 parts of 2-carboxybenzaldehyde, 4 parts of di-n-butylamine, 5 parts of maleic acid and 8 parts
Ammonium persulfate.
Process for tanning using the crocodile skin of the tanning agent of present embodiment is, following works of the crocodile skin only by carrying out successively
Sequence processing：
A. soak：Plucked crocodile skin is immersed in the salt solution that PH is 4.5, soak time is 8 hours；
B. fleshing：The meat of crocodile skin is rooted out by fleshing machine；
C. soften：Crocodile skin is immersed in the salt solution that PH is 4.5, soak time is 20 minutes, then crocodile skin passes through 4~8
Hour drains；
D. tanning：The raw material of the tanning agent for crocodile skin of present embodiment is added in organic solvent, the weight ratio of feed liquid
For 1:21~23, crocodile skin is immersed in tanning agent solution, soak time is 33~35 hours, by 3~4 after crocodile skin taking-up
Hour drains；Organic solvent is trichloroacetic acid；
E. dry：Crocodile 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 fatty aldehyde, 5.5 parts
Resorcinol calixarenes, 11.5 parts of Lauxite, 2.5 parts of polyvinylpyrrolidone, 12.5 parts of methylene-succinic acid, 8
Part double carboxyethyl amine, 16 parts of sodium phthalate, 4 parts of 2-carboxybenzaldehyde, 4.5 parts of di-n-butylamine, 7.2 parts suitable
Butene dioic acid and 9.8 parts of ammonium persulfate.
Process for tanning using the crocodile skin of the tanning agent of present embodiment is, following works of the crocodile skin only by carrying out successively
Sequence processing：
A. soak：Plucked crocodile skin is immersed in the salt solution that PH is 4.5, soak time is 6.5 hours；
B. fleshing：The meat of crocodile skin is rooted out by fleshing machine；
C. soften：Crocodile skin is immersed in the salt solution that PH is 4.5, soak time is 17 minutes, then crocodile skin passes through 4~8
Hour drains；
D. tanning：The raw material of the tanning agent for crocodile skin of present embodiment is added in organic solvent, the weight ratio of feed liquid
For 1:18~21, crocodile skin is immersed in tanning agent solution, soak time is 29~30 hours, by 3~4 after crocodile skin taking-up
Hour drains；Organic solvent is glycerine, trichloroacetic acid and trifluoroacetic acid；
E. dry：Crocodile 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：Between 9 parts of fatty aldehyde, 5.2 parts
Benzenediol calixarenes, 10.5 parts of Lauxite, 1.8 parts of polyvinylpyrrolidone, 13.3 parts of methylene-succinic acid, 7.8
Part 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
Maleic acid and 9 parts of ammonium persulfate.
Process for tanning using the crocodile skin of the tanning agent of present embodiment is, following works of the crocodile skin only by carrying out successively
Sequence processing：
A. soak：Plucked crocodile skin is immersed in the salt solution that PH is 4.5, soak time is 7.5 hours；
B. fleshing：The meat of crocodile skin is rooted out by fleshing machine；
C. soften：Crocodile skin is immersed in the salt solution that PH is 4.5, soak time is 15 minutes, then crocodile skin passes through 4~8
Hour drains；
D. tanning：The raw material of the tanning agent for crocodile skin of present embodiment is added in organic solvent, the weight ratio of feed liquid
For 1:15~17, crocodile skin is immersed in tanning agent solution, soak time is 30~32 hours, by 3~4 after crocodile skin taking-up
Hour drains；Organic solvent is isooctane, isopropyl ether and methyltetrahydrofuran；
E. dry：Crocodile 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 crocodile skin, 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 fatty aldehyde, 4~6 parts of resorcinol calixarenes, 9~13 parts of Lauxite, 1~3 part of polyvinylpyrrolidine
Ketone, 11~15 parts of methylene-succinic acid, 7~9 parts of double carboxyethyl amine, 15~17 parts of sodium phthalate, 3~6 parts
2-carboxybenzaldehyde, 4~7 parts of di-n-butylamine, 5~8 parts of maleic acid and 8~11 parts of ammonium persulfate.
2. it is used for the tanning agent of crocodile skin as claimed in claim 1, it is characterised in that the preparation of the tanning agent is by by weight ratio
Following raw materials constitute：7.5~9.5 parts of fatty aldehyde, 4.5~5.5 parts of resorcinol calixarenes, 10~12 parts of ureaformaldehyde tree
Fat, 1.5~2.5 parts of polyvinylpyrrolidone, 12~14 parts of methylene-succinic acid, 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 of maleic acid and 9~10 parts of ammonium persulfate.
3. it is used for the tanning agent of crocodile skin as claimed in claim 2, it is characterised in that the preparation of the tanning agent is by by weight ratio
Following raw materials constitute：8.5 parts of fatty aldehyde, 5 parts of resorcinol calixarenes, 11 parts of Lauxite, 2 parts of polyethylene pyrrole
Pyrrolidone, 13 parts of methylene-succinic acid, 8 parts of double carboxyethyl amine, 16 parts of sodium phthalate, 4.5 parts of adjacent carboxyl benzene
Formaldehyde, 5.5 parts of di-n-butylamine, 6.5 parts of maleic acid and 10 parts of ammonium persulfate.
4. it is used for the tanning agent of crocodile skin as claimed in claim 2, it is characterised in that the preparation of the tanning agent is by by weight ratio
Following raw materials constitute：7.5 parts of fatty aldehyde, 5.5 parts of resorcinol calixarenes, 12 parts of Lauxite, 1.5 parts of poly- second
Alkene pyrrolidone, 12 parts of methylene-succinic acid, 8.5 parts of double carboxyethyl amine, 16.5 parts of sodium phthalate, 3.5 parts
2-carboxybenzaldehyde, 4.5 parts of di-n-butylamine, 7.5 parts of maleic acid and 9 parts of ammonium persulfate.
5. it is used for the tanning agent of crocodile skin as claimed in claim 2, it is characterised in that the preparation of the tanning agent is by by weight ratio
Following raw materials constitute：9.5 parts of fatty aldehyde, 4.5 parts of resorcinol calixarenes, 10 parts of Lauxite, 2.5 parts of poly- second
Alkene pyrrolidone, 14 parts of methylene-succinic acid, 7.5 parts of double carboxyethyl amine, 16 parts of sodium phthalate, 4.5 parts of neighbour
Carboxyl benzaldehyde, 5.5 parts of di-n-butylamine, 6.5 parts of maleic acid and 9.5 parts of ammonium persulfate.
6. it is used for the tanning agent of crocodile skin as claimed in claim 1, it is characterised in that the preparation of the tanning agent is by by weight ratio
Following raw materials constitute：6 parts of fatty aldehyde, 6 parts of resorcinol calixarenes, 13 parts of Lauxite, 1 part of polyvinyl pyrrole
Alkanone, 11 parts of methylene-succinic acid, 9 parts of double carboxyethyl amine, 15 parts of sodium phthalate, 6 parts of 2-carboxybenzaldehyde,
7 parts of di-n-butylamine, 8 parts of maleic acid and 11 parts of ammonium persulfate.
7. it is used for the tanning agent of crocodile skin as claimed in claim 1, it is characterised in that the preparation of the tanning agent is by by weight ratio
Following raw materials constitute：11 parts of fatty aldehyde, 4 parts of resorcinol calixarenes, 9 parts of Lauxite, 3 parts of polyvinyl pyrrole
Alkanone, 15 parts of methylene-succinic acid, 7 parts of double carboxyethyl amine, 17 parts of sodium phthalate, 3 parts of 2-carboxybenzaldehyde,
4 parts of di-n-butylamine, 5 parts of maleic acid and 8 parts of ammonium persulfate.
8. the process for tanning of crocodile skin, it is characterised in that crocodile skin is only handled by the following processes carried out successively：
A. soak：Plucked crocodile skin is immersed in the salt solution that PH is 4~5, soak time is 6~8 hours；
B. fleshing：The meat of crocodile skin is rooted out by fleshing machine；
C. soften：Crocodile skin is immersed in the salt solution that PH is 4~5, soak time is 15~20 minutes, then crocodile skin passes through
Drain within 4~8 hours；
D. tanning：The raw material of any described tanning agent for crocodile skin of claim 1 to 7 is added in organic solvent, material
The weight ratio of liquid is 1:15~25, crocodile skin is immersed in tanning agent solution, soak time is 28~35 hours, and crocodile skin takes out
Drained afterwards by 3~4 hours；
E. dry：Crocodile is can obtain after natural drying.
9. the process for tanning of crocodile skin as claimed in claim 8, it is characterised in that：The organic solvent be ethanol, glycerine,
It is a kind of or many in isooctane, isopropyl ether, methyl isopropyl ketone, methyltetrahydrofuran, petroleum ether, trichloroacetic acid, trifluoroacetic acid
The combination planted.
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| CN201710452093.5A CN107090527A (en) | 2017-06-15 | 2017-06-15 | Tanning agent and its crocodile skin process for tanning for crocodile skin |
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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 |
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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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