CN107419040A - Tanning agent and its ox-hide process for tanning for ox-hide - Google Patents
Tanning agent and its ox-hide process for tanning for ox-hide Download PDFInfo
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- CN107419040A CN107419040A CN201710453187.4A CN201710453187A CN107419040A CN 107419040 A CN107419040 A CN 107419040A CN 201710453187 A CN201710453187 A CN 201710453187A CN 107419040 A CN107419040 A CN 107419040A
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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
- 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
- C14C1/00—Chemical treatment prior to tanning
- C14C1/08—Deliming; Bating; Pickling; Degreasing
-
- 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 ox-hide and its ox-hide process for tanning, the tanning agent is made up of methacrylic acid, resorcinol, Lauxite, the cyclic ketones of nitrogen penta, dibutyl itaconate, double carboxyethyl amine, sodium phthalate, 2-carboxybenzaldehyde, di-n-butylamine, fatty aldehyde and maleic acids, and the process for tanning is successively by immersion, fleshing, softening, tanning and the processing for drying process by ox-hide.Targetedly ox-hide plays good tanning effect to the tanning agent of the present invention, process can effectively be simplified by carrying out tanning to ox-hide using the tanning agent of the present invention, ox-hide only need to pass through immersion, fleshing, softening, tanning and dry process processing can obtain ox-hide remove from office, tanning processes possess fat-reducing function to ox-hide, process for tanning is effectively simplified, tanning efficiency is also effectively lifted, production cost is effectively reduced, and obtained ox-hide leather 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 relates to a kind of tanning agent especially suitable for ox-hide and its ox
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, has nature
Graining and gloss, comfortable feel.
Current leather tanning process is complex, as the Chinese invention patent of Application No. 201310725180.5 provides
A kind of process for tanning goat leather by synthetic tanning agent, the tanning processes of its tanning agent are used 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 need
The processes such as multiple immersion, degreasing are wanted, technique is complex, and the tanning of leather is inefficient, and production cost is high.
The content of the invention
The present invention provides a kind of tanning agent and its ox-hide process for tanning for ox-hide, to overcome current part process for tanning
The problem of existing tanning processes are complicated, efficiency is low, cost is high.
The present invention adopts the following technical scheme that：
For the tanning agent of ox-hide, the preparation of the tanning agent is made up of following raw materials by weight ratio：6~11 parts of metering system
Acid, 4~6 parts of resorcinol, 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 maleic acid.
Further, the preparation of the tanning agent is made up of following raw materials by weight ratio：7.5~9.5 parts of methyl-prop
Olefin(e) acid, 4.5~5.5 parts of resorcinol, 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 adjacent carboxylic
Benzaldehyde, 4.5~5.5 parts of di-n-butylamine, 6.5~7.5 parts of fatty aldehyde and 9~10 parts of maleic acid.
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 methacrylic acid, 5 parts of isophthalic
Diphenol, 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 neighbour
Phthalic acid sodium, 4.5 parts of 2-carboxybenzaldehyde, 5.5 parts of di-n-butylamine, 6.5 parts of fatty aldehyde and 10 parts of maleic two
Acid.
Second, the preparation of the tanning agent is made up of following raw materials by weight ratio：7.5 parts of methacrylic acid, 5.5 parts
Resorcinol, 12 parts of Lauxite, 1.5 parts of the cyclic ketones of nitrogen penta, 12 parts of dibutyl itaconate, 8.5 parts of double carboxyethyls
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
The maleic acid of part.
Third, the preparation of the tanning agent is made up of following raw materials by weight ratio：9.5 parts of methacrylic acid, 4.5 parts
Resorcinol, 10 parts of Lauxite, 2.5 parts of the cyclic ketones of nitrogen penta, 14 parts of dibutyl itaconate, 7.5 parts of double carboxyethyls
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
The maleic acid of part.
Fourth, the preparation of the tanning agent is made up of following raw materials by weight ratio：Between 6 parts of methacrylic acid, 6 parts
Benzenediol, 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 maleic acid.
Fifth, the preparation of the tanning agent is made up of following raw materials by weight ratio：11 parts of methacrylic acid, 4 parts
Resorcinol, 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 parts
Sodium phthalate, 3 parts of 2-carboxybenzaldehyde, 4 parts of di-n-butylamine, 5 parts of fatty aldehyde and 8 parts of maleic acid.
The process for tanning of ox-hide, ox-hide are only handled by the following processes carried out successively：
A. soak：Plucked ox-hide is immersed in the salt solution that PH is 4~5, soak time is 6~8 hours；
B. fleshing：The meat of ox-hide is rooted out by fleshing machine；
C. soften：Ox-hide is immersed in the salt solution that PH is 4~5, soak time is 15~20 minutes, and then ox-hide passes through 4~8
Hour drains；
D. tanning：The raw material of the above-mentioned tanning agent for ox-hide is added in organic solvent, the weight ratio of feed liquid is 1:15~
25, ox-hide is immersed in tanning agent solution, soak time is 28~35 hours, and ox-hide drained after taking out by 3~4 hours；
E. dry：Ox-hide leather 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 ox-hide plays good tanning effect for agent, and carrying out tanning to ox-hide using the tanning agent of the present invention can effectively simplify
Process, ox-hide only need to pass through immersion, fleshing, softening, tanning and dry process processing can obtain ox-hide remove from office, tanning processes pair
Ox-hide possesses fat-reducing function, and process for tanning is effectively simplified, and tanning efficiency is also effectively lifted, and production cost is had
Effect reduces, and obtained ox-hide leather 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 methacrylic acid, 5 parts of resorcinol,
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 two
Sodium formate, 4.5 parts of 2-carboxybenzaldehyde, 5.5 parts of di-n-butylamine, 6.5 parts of fatty aldehyde and 10 parts of maleic acid.
Process for tanning using the ox-hide of the tanning agent of present embodiment is, ox-hide is only by following processes for carrying out successively
Reason：
A. soak：Plucked ox-hide is immersed in the salt solution that PH is 4.5, soak time is 6 hours；
B. fleshing：The meat of ox-hide is rooted out by fleshing machine；
C. soften：Ox-hide is immersed in the salt solution that PH is 4.5, soak time is 15~17 minutes, and then ox-hide passes through 4~8
Hour drains；
D. tanning：The raw material of the tanning agent for ox-hide of present embodiment is added in organic solvent, the weight ratio of feed liquid is
1:23~25, ox-hide is immersed in tanning agent solution, soak time is 28~30 hours, and ox-hide drained after taking out by 3 hours；
Organic solvent is ethanol and glycerine；
E. dry：Ox-hide leather is can obtain after natural drying.
Present embodiment is optimal embodiment, and targetedly ox-hide plays good tanning to the tanning agent of present embodiment
Effect, process can effectively be simplified by carrying out tanning to ox-hide using the tanning agent of the present invention, and ox-hide only need to be by immersion, fleshing, soft
Change, tanning and dry the processing of process and can obtain ox-hide and remove from office, tanning processes possess fat-reducing function to ox-hide, and process for tanning obtains
Effectively simplify, tanning efficiency also effectively lifted, and production cost is effectively reduced, and obtained ox-hide leather possess it is 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 methacrylic acid, 5.5
The resorcinol of part, 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 maleic acid.
Process for tanning using the ox-hide of the tanning agent of present embodiment is, ox-hide is only by following processes for carrying out successively
Reason：
A. soak：Plucked ox-hide is immersed in the salt solution that PH is 5, soak time is 8 hours；
B. fleshing：The meat of ox-hide is rooted out by fleshing machine；
C. soften：Ox-hide is immersed in the salt solution that PH is 5, soak time is 20 minutes, and then ox-hide dripped by 4~8 hours
It is dry；
D. tanning：The raw material of the tanning agent for ox-hide of present embodiment is added in organic solvent, the weight ratio of feed liquid is
1:22~24, ox-hide is immersed in tanning agent solution, soak time is 29~32 hours, and ox-hide dripped after taking out by 3~4 hours
It is dry；Organic solvent is glycerine and isooctane；
E. dry：Ox-hide leather 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 methacrylic acid, 4.5
The resorcinol of part, 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 maleic acid.
Process for tanning using the ox-hide of the tanning agent of present embodiment is, ox-hide is only by following processes for carrying out successively
Reason：
A. soak：Plucked ox-hide is immersed in the salt solution that PH is 4, soak time is 64 hours；
B. fleshing：The meat of ox-hide is rooted out by fleshing machine；
C. soften：Ox-hide is immersed in the salt solution that PH is 4, soak time is 15 minutes, and then ox-hide dripped by 4~8 hours
It is dry；
D. tanning：The raw material of the tanning agent for ox-hide of present embodiment is added in organic solvent, the weight ratio of feed liquid is
1:15~18, ox-hide is immersed in tanning agent solution, soak time is 28~30 hours, and ox-hide dripped after taking out by 3~4 hours
It is dry；Organic solvent is glycerine；
E. dry：Ox-hide leather 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 methacrylic acid, 6 parts
Resorcinol, 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 maleic acid.
Process for tanning using the ox-hide of the tanning agent of present embodiment is, ox-hide is only by following processes for carrying out successively
Reason：
A. soak：Plucked ox-hide is immersed in the salt solution that PH is 4.5, soak time is 7 hours；
B. fleshing：The meat of ox-hide is rooted out by fleshing machine；
C. soften：Ox-hide is immersed in the salt solution that PH is 4.5, soak time is 18 minutes, and then ox-hide passes through 4~8 hours
Drain；
D. tanning：The raw material of the tanning agent for ox-hide of present embodiment is added in organic solvent, the weight ratio of feed liquid is
1:18~19, ox-hide is immersed in tanning agent solution, soak time is 30~33 hours, and ox-hide dripped after taking out by 3~4 hours
It is dry；Organic solvent is methyltetrahydrofuran and petroleum ether；
E. dry：Ox-hide leather 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 methacrylic acid, 4 parts
Resorcinol, 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 parts
Sodium phthalate, 3 parts of 2-carboxybenzaldehyde, 4 parts of di-n-butylamine, 5 parts of fatty aldehyde and 8 parts of maleic acid.
Process for tanning using the ox-hide of the tanning agent of present embodiment is, ox-hide is only by following processes for carrying out successively
Reason：
A. soak：Plucked ox-hide is immersed in the salt solution that PH is 4.5, soak time is 8 hours；
B. fleshing：The meat of ox-hide is rooted out by fleshing machine；
C. soften：Ox-hide is immersed in the salt solution that PH is 4.5, soak time is 20 minutes, and then ox-hide passes through 4~8 hours
Drain；
D. tanning：The raw material of the tanning agent for ox-hide of present embodiment is added in organic solvent, the weight ratio of feed liquid is
1:21~23, ox-hide is immersed in tanning agent solution, soak time is 33~35 hours, and ox-hide dripped after taking out by 3~4 hours
It is dry；Organic solvent is trichloroacetic acid；
E. dry：Ox-hide leather 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 methacrylic acid, 5.5
The resorcinol, 11.5 parts of Lauxite, 2.5 parts of the cyclic ketones of nitrogen penta, 12.5 parts of dibutyl itaconate, 8 parts of double carboxylics of part
Ethylamine, 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 maleic acid.
Process for tanning using the ox-hide of the tanning agent of present embodiment is, ox-hide is only by following processes for carrying out successively
Reason：
A. soak：Plucked ox-hide is immersed in the salt solution that PH is 4.5, soak time is 6.5 hours；
B. fleshing：The meat of ox-hide is rooted out by fleshing machine；
C. soften：Ox-hide is immersed in the salt solution that PH is 4.5, soak time is 17 minutes, and then ox-hide passes through 4~8 hours
Drain；
D. tanning：The raw material of the tanning agent for ox-hide of present embodiment is added in organic solvent, the weight ratio of feed liquid is
1:18~21, ox-hide is immersed in tanning agent solution, soak time is 29~30 hours, and ox-hide dripped after taking out by 3~4 hours
It is dry；Organic solvent is glycerine, trichloroacetic acid and trifluoroacetic acid；
E. dry：Ox-hide leather 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 methacrylic acid, 5.2 parts
Resorcinol, 10.5 parts of Lauxite, 1.8 parts of the cyclic ketones of nitrogen penta, 13.3 parts of dibutyl itaconate, 7.8 parts of double carboxylics
Ethylamine, 16.3 parts of sodium phthalate, 4.2 parts of 2-carboxybenzaldehyde, 5.2 parts of di-n-butylamine, 7.2 parts of fatty aldehyde
With 9 parts of maleic acid.
Process for tanning using the ox-hide of the tanning agent of present embodiment is, ox-hide is only by following processes for carrying out successively
Reason：
A. soak：Plucked ox-hide is immersed in the salt solution that PH is 4.5, soak time is 7.5 hours；
B. fleshing：The meat of ox-hide is rooted out by fleshing machine；
C. soften：Ox-hide is immersed in the salt solution that PH is 4.5, soak time is 15 minutes, and then ox-hide passes through 4~8 hours
Drain；
D. tanning：The raw material of the tanning agent for ox-hide of present embodiment is added in organic solvent, the weight ratio of feed liquid is
1:15~17, ox-hide is immersed in tanning agent solution, soak time is 30~32 hours, and ox-hide dripped after taking out by 3~4 hours
It is dry；Organic solvent is isooctane, isopropyl ether and methyltetrahydrofuran；
E. dry：Ox-hide leather 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 ox-hide, 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 methacrylic acid, 4~6 parts of resorcinol, 9~13 parts of Lauxite, 1~3 part of the cyclic ketones of nitrogen penta, 11~15 parts
Dibutyl itaconate, 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 maleic acid.
2. it is used for the tanning agent of ox-hide 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 formed：7.5~9.5 parts of methacrylic acid, 4.5~5.5 parts of resorcinol, 10~12 parts of Lauxite,
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
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 fat
Aldehyde and 9~10 parts of maleic acid.
3. it is used for the tanning agent of ox-hide 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 formed：8.5 parts of methacrylic acid, 5 parts of resorcinol, 11 parts of Lauxite, 2 parts of the cyclic ketones of nitrogen penta, 13
Part dibutyl itaconate, 8 parts of double carboxyethyl amine, 16 parts of sodium phthalate, 4.5 parts of 2-carboxybenzaldehyde, 5.5 parts
Di-n-butylamine, 6.5 parts of fatty aldehyde and 10 parts of maleic acid.
4. it is used for the tanning agent of ox-hide 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 formed：7.5 parts of methacrylic acid, 5.5 parts of resorcinol, 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 maleic acid.
5. it is used for the tanning agent of ox-hide 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 formed：9.5 parts of methacrylic acid, 4.5 parts of resorcinol, 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 maleic acid.
6. it is used for the tanning agent of ox-hide 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 formed：6 parts of methacrylic acid, 6 parts of resorcinol, 13 parts of Lauxite, 1 part of the cyclic ketones of nitrogen penta, 11 parts
Dibutyl itaconate, 9 parts of double carboxyethyl amine, 15 parts of sodium phthalate, 6 parts of 2-carboxybenzaldehyde, the two of 7 parts just
Butylamine, 8 parts of fatty aldehyde and 11 parts of maleic acid.
7. it is used for the tanning agent of ox-hide 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 formed：11 parts of methacrylic acid, 4 parts of resorcinol, 9 parts of Lauxite, 3 parts of the cyclic ketones of nitrogen penta, 15 parts
Dibutyl itaconate, 7 parts of double carboxyethyl amine, 17 parts of sodium phthalate, 3 parts of 2-carboxybenzaldehyde, the two of 4 parts just
Butylamine, 5 parts of fatty aldehyde and 8 parts of maleic acid.
8. the process for tanning of ox-hide, it is characterised in that ox-hide is only handled by the following processes carried out successively：
A. soak：Plucked ox-hide is immersed in the salt solution that PH is 4~5, soak time is 6~8 hours；
B. fleshing：The meat of ox-hide is rooted out by fleshing machine；
C. soften：Ox-hide is immersed in the salt solution that PH is 4~5, soak time is 15~20 minutes, and then ox-hide passes through 4~8
Hour drains；
D. tanning：The raw material of any described tanning agent for ox-hide of claim 1 to 7 is added in organic solvent, feed liquid
Weight ratio be 1:15~25, ox-hide is immersed in tanning agent solution, soak time be 28~35 hours, ox-hide take out after by
Drain within 3~4 hours；
E. dry：Ox-hide leather is can obtain after natural drying.
9. the process for tanning of ox-hide 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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| CN201710453187.4A CN107419040A (en) | 2017-06-15 | 2017-06-15 | Tanning agent and its ox-hide process for tanning for ox-hide |
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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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2017
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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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Application publication date: 20171201 |