CN108085434A - A kind of leather organic tanning agent and preparation method thereof - Google Patents
A kind of leather organic tanning agent and preparation method thereof Download PDFInfo
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- CN108085434A CN108085434A CN201711498483.2A CN201711498483A CN108085434A CN 108085434 A CN108085434 A CN 108085434A CN 201711498483 A CN201711498483 A CN 201711498483A CN 108085434 A CN108085434 A CN 108085434A
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- tanning agent
- cyanuric chloride
- organic tanning
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Classifications
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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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- 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 discloses a kind of leather organic tanning agent, is formed including following weight parts：Cyanuric Chloride：20~40 parts, multiamino compound：When 10~20 parts of tanning agents of the invention terminate discharging, appearance is yellow emulsion under the Active Chlorine organic tanning agent room temperature.Stablize with relatively stable contraction, suitable for the demand of most tannery in the prior art.
Description
Technical field
The invention belongs to leather tanning field, more particularly to a kind of leather organic tanning agent and preparation method thereof.
Background technology
Leather retanning agent is broadly divided into two major class of inorganic tanning agent and organic tanning agent both at home and abroad at present；Wherein inorganic tanning agent is with chrome tanning
To represent, organic tanning agent species is various.For chrome tanning since tanbark shrinkage temperature is high, water-fastness ability is strong, soft, plentiful, elastic
And good-extensibility, extensive use is able to, dosage is very big.But the Cr3+ utilization rates in chrome tanning agent are not achieved 100%, remain in
Part in waste liquid forms chromium-bearing sludge through precipitation together with lime, other inorganic matters and organic matter etc..Chromium-bearing sludge is put into
Dangerous waste catalogue, disposal difficulty is very big, has become the maximum bottleneck for restricting leather industry development.In addition, it was found that certain
Under the conditions of Cr3+ can be oxidized into Cr6+, and much bigger than Cr3+ 100 times of the toxicity of Cr6+ is classified as strong carcinogen by the United Nations
Matter.For organic tan currently used for leather tanning in leather production, the tanning to leather is one of particularly important process.
Tanning agent of the prior art is all to need to carry out pickling processing, there is larger pollution to environment.
The content of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of leather without pickling processing with having
Machine tanning agent.
To achieve the above object, the present invention provides following technical solutions：
A kind of leather organic tanning agent, as shown in following molecular formula：
The R is the segment with amino；
It is formed including following weight parts：
Cyanuric Chloride：20~40 parts
Multiamino compound：10~20 parts.
As a further improvement on the present invention,
The multiamino compound is at least one of H acid, lysine, taurine.
As a further improvement on the present invention,
It further includes by dispersant：2~6 parts, the dispersant selects sodium methylene bis-naphthalene sulfonate.
As a further improvement on the present invention,
Bleeding agent is further included：2~6 parts, the bleeding agent selects fatty alcohol polyoxyethylene ether.
As a further improvement on the present invention,
Emulsifier is further included：10~20 parts, the emulsifier selects fatty alcohol polyoxyethylene ether, polyoxyethylene (20)
At least one of sorbitanmonolaureate.
As a further improvement on the present invention,
Lactic acid is further included：2~5 parts.
A kind of preparation method of leather organic tanning agent is provided as another object of the present invention：
By Cyanuric Chloride in 0~10 DEG C of thermostat water bath, stirred using stirring rod, and cause solution be cooled to 0~
10 DEG C, multiamino compound is dissolved in alkaline aqueous solution, and multiamino compound solution is added dropwise in Cyanuric Chloride, 0
Insulation reaction 5h at~5 DEG C.
As a further improvement on the present invention,
The Cyanuric Chloride is first dissolved in diluting in solvent before water-bath, and the solvent is water or acetone.
As a further improvement on the present invention,
Cyanuric Chloride is added in three-necked flask, while adds in solvent and Cyanuric Chloride is completely dissolved, is put
Enter preprepared temperature in 0~10 DEG C of water-bath, with stirring paddle stirring, then add in the multiamino compound mixed
And alkaline solution, it is reacted under ice bath, then room temperature is warming up to, lactic acid, stirring are added in, then dispersant and bleeding agent are separately added into,
The two interval 10~30 minutes, stirring uniformly rear addition emulsifier to be mixed, similary the two add in interval time at 10~30 points
Clock, finally add into water stirring 3~4 it is small when discharge.As a further improvement on the present invention,
The alkaline solution is sodium hydrate aqueous solution or potassium hydroxide aqueous solution or aqueous sodium carbonate.
When the tanning agent of the present invention terminates discharging, appearance is yellow emulsion under the Active Chlorine organic tanning agent room temperature.With compared with
Stablize for stable contraction, suitable for the demand of most tannery in the prior art.
Dispersant, bleeding agent, the emulsifier that Active Chlorine organic tanning agent prepared by the present invention adds in preparation process be
It is nontoxic, it is free of contamination, it is environmentally friendly, after reaction, still with the presence of a small amount of by-product, on tanning use without influence, without
Separation realizes zero-emission process, belongs to technology.
Description of the drawings
Fig. 1 is Cyanuric Chloride raw material infrared spectrum；
Fig. 2 is Cyanuric Chloride and the infrared spectrum of H acid reaction products；
Fig. 3 is Cyanuric Chloride and taurine reaction product and the infrared spectrum of taurine raw material comparison；
Fig. 4 is Cyanuric Chloride and lysine reaction product and the infrared spectrum of lysine raw material comparison.
Specific embodiment
The present invention is described in further detail below in conjunction with the embodiment given by attached drawing.
Embodiment one：H acid and the experimental procedure of Cyanuric Chloride reaction
5.59g Cyanuric Chlorides (TCT) are added in the three-necked flask of 100mL, add in 17.46g water at room temperature.It is put
Enter to the control of preprepared temperature in 0~5 DEG C of thermostat water bath, stir 20min using stirring rod so that solution
It is cooled to 0~5 DEG C.11.26g lysines are added in the aqueous sodium carbonate that 26.53g mass fractions are 12.23%, mixed
Conjunction is homogeneously disposed in beaker to be added drop-wise to the speed of 0.5mL/min in three-necked flask using peristaltic pump, while is leaked with constant pressure addition
The aqueous sodium carbonate of 19.9g12.23% is added dropwise in bucket, and 60min is added dropwise, and pH value is measured every 30min, anti-to monitor
Progress is answered, the insulation reaction 5h at 0~5 DEG C.Reaction terminates to obtain the aqueous dispersions that solid content is 25%, for use.
Embodiment two：Taurine and the experimental procedure of Cyanuric Chloride reaction
5.59g Cyanuric Chlorides (TCT) are added in the three-necked flask of 100mL, add in 27.94g acetone solutions at room temperature
Cyanuric Chloride.The control of preprepared temperature is put it into 0~5 DEG C of thermostat water bath, is stirred using stirring rod
20min so that solution is cooled to 0~5 DEG C of formation saturated solution.3.99g taurines are added to 33.69g mass fractions is
In 10% aqueous sodium carbonate, uniformly mixed be placed in beaker is added drop-wise to three mouthfuls using peristaltic pump with the speed of 0.5mL/min
In flask, 60min is added dropwise, and pH value, to monitor extent of reaction, the insulation reaction 5h at 0~5 DEG C are measured every 30min.
The reaction solution of solid content 15.7% is obtained, for use.
Embodiment three：The reaction of lysine and Cyanuric Chloride
5.59g Cyanuric Chlorides (TCT) are added in the three-necked flask of 100mL, add in 38.4g acetone solutions three at room temperature
Polychlorostyrene cyanogen.The control of preprepared temperature is put it into 0~5 DEG C of thermostat water bath, is stirred using stirring rod
20min so that solution is cooled to 0~5 DEG C of formation saturated solution.2.84g lysines are added to 12.96g mass fractions is
In 20% sodium hydrate aqueous solution, uniformly mixed be placed in beaker is added drop-wise to three using peristaltic pump with the speed of 0.5mL/min
In mouth flask, 30min is added dropwise, and pH values, to monitor extent of reaction, the insulation reaction at 0~5 DEG C are measured every 30min
5h.The reaction solution of solid content 18% is obtained, for use.
Example IV：
5.59g (30mmol) Cyanuric Chloride is added in the three-necked flask of 100mL, it is molten to add in 38.4g acetone at room temperature
Solve Cyanuric Chloride.The control of preprepared temperature is put it into 0~5 DEG C of thermostat water bath, is stirred using stirring rod
It mixes 20 minutes so that solution is cooled to 0~5 DEG C of formation saturated solution.2.84g lysines are added to 12.96g mass fractions is
In 20% sodium hydrate aqueous solution, uniformly mixed be placed in beaker is added drop-wise to three using peristaltic pump with the speed of 0.5mL/min
In mouth flask, 30min is added dropwise, and pH value, the insulation reaction 5h at 0~5 DEG C are measured every 30min.It heats up after reaction
To under room temperature, dispersant NNO1.2g is added in, stirs 20min.JFC-C1.2g is added in, continues to stir.After 20min respectively
Add in AEO-3 emulsifier 1.65g and T-20 emulsifiers 3.86g, two minor tick 30min.It discharges after 2~3h of stirring.
Embodiment five：
By 5.59g (30mmol) Cyanuric Chloride (TCT), 0.88g lauryl sodium sulfate (SDS), 0.88g di-2-ethylhexylphosphine oxides
Sodium naphthalene sulfonate (NN0) is added separately in the three-necked flask of 100mL, adds in 38.4g deionized waters at room temperature.Put it into thing
First ready temperature control is stirred 30 minutes so that solution is cooled to 0 in 0~5 DEG C of thermostat water bath using stirring rod
~5 DEG C of formation brown emulsion.2.84g (16.5mmol) lysine is added to the hydroxide that 12.96g mass fractions are 20%
In sodium water solution, uniformly mixed be placed in beaker is added drop-wise to the speed of 0.5mL/min in three-necked flask using peristaltic pump,
30min is added dropwise, and pH value, the insulation reaction 5h at 0~5 DEG C are measured every 30min.Room temperature condition is warming up to after reaction
Under, add in 1.2g penetrating agent JFCs-C stirrings 20min.SP-80 emulsifier 1.96g and T-20 emulsifiers are separately added into after 20min
0.84g, two minor tick 30min.Emulsifier is stirred for 30min after adding in, and 11.56g is slowly added dropwise with constant pressure funnel
Deionized water discharges after stirring 2~3h.
Comparative example one：Using Granofin F-90 tanning agents purchased in market.
One to three infrared test of embodiment：
One infrared test of embodiment：
By after reaction solution take out it is a certain amount of be put in beaker, beaker is placed in -20 DEG C of refrigerator and freezed for 24 hours, treated
It is taken out after its glaciation bulk and 12h is freeze-dried in freeze drier, eliminate moisture therein.It is red to obtain dried object progress
Outer analysis.Cyanuric Chloride raw material and its with the infrared spectrums of H acid reaction products respectively such as Fig. 1, shown in 2：
Fig. 1 is the infrared spectrogram of Cyanuric Chloride raw material.Wherein, 1482cm-1To be conjugated carbon nitrogen in Cyanuric Chloride framework ring
The stretching vibration peak of double bond；1267cm-1It is the stretching vibration of carbon nitrogen singly-bound therein；846cm-1、 790cm-1For chlorine atom with
Carbon atom forms the stretching vibration of singly-bound.
Fig. 2 is Cyanuric Chloride and the infrared spectrum of H acid reaction products.In figure, 1039cm-1It is-NH- and the carbon on triazine ring
The C-N stretching vibrations that atom is connected.1305cm-1、1394cm-1、1559cm-1Locate as Cyanuric Chloride skeletal vibration peak, 1727cm-1
For the stretching vibration peak of naphthalene nucleus；1176cm-1It is sulfonic characteristic absorption peak in H acid；777cm-1、674cm-1It is Cyanuric Chloride
The stretching vibration of middle C-Cl keys；3426cm-1For-OH the stretching vibration peaks being connected in H acid with naphthalene nucleus.3112cm-1Locate as-NH-'s
Stretching vibration peak.
Two infrared test of embodiment：
Will reaction after solution filter, obtain solids respectively with acetone wash three times, water washing three times；In vacuum drying chamber
Middle dry 1h obtains sediment and carries out infrared analysis.Cyanuric Chloride and taurine reaction product and taurine raw material it is infrared
Spectrum is as shown in Figure 3：
Fig. 3 is Cyanuric Chloride and taurine reaction product and the infrared spectrum of taurine raw material comparison.Wherein, 1167cm-1
It is the C-N stretching vibrations that-NH- is connected with the carbon atom on triazine ring, 1331cm-1、1400cm-1Locate to shake for Cyanuric Chloride skeleton
Dynamic peak, 838cm-1、791cm-1It is that the flexible of C-Cl keys in Cyanuric Chloride shakes.3215cm in taurine-1、3040cm-1It is-NH2
Asymmetric stretching vibration peak；It is changed into 3282cm in the product-1Single peak primarily determines that the asymmetric absworption peak for-NH.
Three infrared test of embodiment：
Will reaction after solution filter, obtain solids respectively with acetone wash three times, water washing three times；In vacuum drying chamber
Middle dry 1h obtains sediment and carries out infrared analysis.Cyanuric Chloride and lysine reaction product and lysine raw material it is infrared
Spectrum is as shown in Figure 4：
Fig. 4 is Cyanuric Chloride and lysine reaction product and the infrared spectrum of lysine raw material comparison.It can be with from comparison diagram
Find out：Wherein, 1039cm-1Do not occur in lysine in raw material, occur the absworption peak of moderate strength in the product, it can be with
Judgement is the C-N stretching vibration peaks that-NH- is connected with the carbon atom on triazine ring, 1266cm-1、1350cm-1Locate as Cyanuric Chloride
Skeletal vibration peak, 846cm-1、791cm-1It is flexible the shaking of C- Cl keys in Cyanuric Chloride.3358cm in lysine-1、
3293cm-1It is-NH2Asymmetric stretching vibration peak；It is changed into 3211cm in the product-1Single peak is primarily determined that as-NH- not
Symmetrical absworption peak.Thus it is preliminary to judge by Cyanuric Chloride ring instead of the primary amino radical in lysine.
Tanning performance detection
Process for tanning is carried out according to the process for tanning of Granofin F-90 products.Sheepskin acid skin is taken to carry out tanning, tanning
Process materials addition is in terms of 3 times of dry hide weightening after sheep acid skin water squeezing.Tan after this syntans can directly soften pelt
System, is not required pickling early period, since experiment condition only has sheep acid skin, so having more the step of acid.Process for tanning see the table below
Shown in one：(being carried out below without specified otherwise process for tanning by this technique)
Table one：
A monoblock sheep acid skin wringing machine is first taken to squeeze out the moisture of sour skin, searches out head and the afterbody of whole skin,
It is first cut into two parts with scissors along the doubling of ridge line, then whole skin is cut into 4 parts by horizontal doubling.It takes and respectively will afterwards
Every skin weighs and records quality as m, for use.Rotary drum selected to use weighs the salt that quality is 8%*3m and puts into rotary drum
The water that quality is 3m is added in simultaneously, rotary drum is opened, is rotated 5~10 minutes or so in rotary drum, after salt is completely dissolved, is thrown
Enter weighted raw hide.After rotating 20 minutes or so, the soda ash that ready quality is 2%*3m is dissolved in the hot water, is treated cold
But it is added to afterwards in rotary drum.At room temperature, when rotary drum rotation 2 is small.After the pH value of liquid is surveyed with pH test paper, control ph exists
7 or so.Taking-up goes sour complete leather to be washed, after washing.It can direct plunge into drum and add in the water of 30%*3m
And add in 40%*3m Active Chlorine organic tanning agent, open rotary drum rotate at room temperature 6 it is small when after survey leather shrinkage temperature, be
Heating is instructed in next step, when reaching 60 DEG C such as shrinkage temperature, can be added in the water of 50%*3m and is warming up to 40 DEG C, rotary drum
Rotate 1 it is small when measure shrinkage temperature, shrinkage temperature is not significantly higher at this time.The water of 3m is added in into rotary drum and is warming up to 50
DEG C, holding transfer shares it is lasting rotate 6~8 it is small when after stop rousing, take out leather measurement shrinkage temperature.It is washed again three times after reaching requirement,
Go out drum and take horse, for use.
Table two：One to three reaction product tan leather shrinkage temperature of embodiment measures
Droplet measurement
It negates lotion 1 after answering to drip, be diluted with a certain amount of ultra-pure water, cuvette is injected into after taking 0.45 μm of filtering head filtering
In, it puts it into sample cell and measures.
Droplet measurement is carried out to example IV, embodiment five, comparative example one.
The average particle diameter size of comparative example one is in 202nm, and the average particle diameter size of example IV is in 138.90nm, embodiment
Five average particle diameter size is in 98.77nm.Illustrate that the product cut size after optimization is substantially smaller than the grain size of comparative example product, and it is real
The emulsifying effectiveness for applying example five is more preferable.
The test result of stability
Example IV product carries out stability test, and test result is as follows：
(1) 1: 9 lotion has no apparent lamination after placing 48h；
(2) lotion is not layered equally after centrifuging；
(3) at subzero 20 DEG C chilled storage for 24 hours after, take out to place after 8h voluntarily thaws at room temperature and be not layered, flow
Dynamic property is good.
Five product of embodiment carries out stability test, and test result is as follows：
(1) 1: 9 lotion has no apparent lamination after placing 48h；
(2) lotion is not layered equally after centrifuging；
(3) at subzero 20 DEG C chilled storage for 24 hours after, take out to place after 8h voluntarily thaws at room temperature and be not layered, flow
Dynamic property is good.
To Billy one：Product carries out stability test, and test result is as follows：
There is lamination after placing 48h in (1) 1: 9 lotion；
(2) lotion is layered after centrifuging；
(3) at subzero 20 DEG C chilled storage for 24 hours after, take out to place after 8h voluntarily thaws at room temperature and be layered.
When the tanning agent of the present invention terminates discharging, appearance is yellow emulsion under the Active Chlorine organic tanning agent room temperature.With compared with
Stablize for stable contraction, suitable for the demand of most tannery in the prior art.
Dispersant, bleeding agent, the emulsifier that Active Chlorine organic tanning agent prepared by the present invention adds in preparation process be
It is nontoxic, it is free of contamination, it is environmentally friendly, after reaction, still with the presence of a small amount of by-product, on tanning use without influence, without
Separation realizes zero-emission process, belongs to technology.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of leather organic tanning agent, it is characterised in that：As shown in following molecular formula：
The R is the segment with amino；
It is formed including following weight parts：
Cyanuric Chloride：20~40 parts
Multiamino compound：10~20 parts.
2. a kind of leather organic tanning agent according to claim 1, it is characterised in that：
The multiamino compound is diethylenetriamine, ethanolamine, H acid, hydroxyethyl ethylenediamine, lysine, taurine, polyetheramine
At least one of.
3. a kind of leather organic tanning agent according to claim 1 or 2, it is characterised in that：
It further includes by dispersant：2~6 parts, the dispersant selects sodium methylene bis-naphthalene sulfonate.
4. a kind of leather organic tanning agent according to claim 1 or 2, it is characterised in that：
Bleeding agent is further included：2~6 parts, the bleeding agent selects fatty alcohol polyoxyethylene ether.
5. a kind of leather organic tanning agent according to claim 1 or 2, it is characterised in that：
Emulsifier is further included：10~20 parts, the emulsifier selects fatty alcohol polyoxyethylene ether, polyoxyethylene (20) sorbierite
At least one of acid anhydride monolaurate.
6. a kind of leather organic tanning agent according to claim 1 or 2, it is characterised in that：
Lactic acid is further included：2~5 parts.
7. a kind of preparation method of leather organic tanning agent, it is characterised in that：
It by Cyanuric Chloride in 0~10 DEG C of thermostat water bath, is stirred using stirring rod, and solution is caused to be cooled to 0~10 DEG C,
Multiamino compound is dissolved in alkaline aqueous solution, and multiamino compound solution is added dropwise in Cyanuric Chloride, at 0~5 DEG C
Lower insulation reaction 5h.
8. a kind of preparation method of leather organic tanning agent according to claim 7, it is characterised in that：The Cyanuric Chloride
It is first dissolved in diluting in solvent before water-bath, the solvent is water or acetone.
9. a kind of preparation method of leather organic tanning agent according to claim 8, it is characterised in that：
Cyanuric Chloride is added in three-necked flask, while adds in solvent and Cyanuric Chloride is completely dissolved, is put it into pre-
First ready temperature, with stirring paddle stirring, then adds in the multiamino compound and alkali mixed in 0~10 DEG C of water-bath
Property solution, reacted under ice bath, then be warming up to room temperature, add in lactic acid, stirring, then be separately added into dispersant and bleeding agent, the two
Interval 10~30 minutes, stirring uniformly rear addition emulsifier to be mixed, similary the two added in interval time at 10~30 minutes, most
After add into water stirring 3~4 it is small when discharge.
10. a kind of preparation method of leather organic tanning agent according to claim 9, it is characterised in that：The alkalescence is molten
Liquid is sodium hydrate aqueous solution or potassium hydroxide aqueous solution or aqueous sodium carbonate.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109971898A (en) * | 2019-04-10 | 2019-07-05 | 温州大学 | A kind of nonmetallic tanning agent of environment-friendly type amphoteric ion and preparation method thereof |
| CN110343789A (en) * | 2019-08-01 | 2019-10-18 | 四川德赛尔化工实业有限公司 | Process for tanning |
| CN111118233A (en) * | 2019-12-24 | 2020-05-08 | 温州大学 | Organic chloride tanning agent containing salicylic acid structure and preparation method thereof |
| CN111363864A (en) * | 2018-12-26 | 2020-07-03 | 温州大学 | Nonmetal cation tanning agent and preparation method thereof |
| CN111979364A (en) * | 2020-09-09 | 2020-11-24 | 四川亭江新材料股份有限公司 | Low-molecular-weight aqueous polyurethane type leather organic tanning agent and preparation method and application thereof |
| CN112029064A (en) * | 2020-09-09 | 2020-12-04 | 四川亭江新材料股份有限公司 | Amino-terminated polyurethane of synthetic tanning agent and preparation method and application thereof |
| CN112778226A (en) * | 2021-01-09 | 2021-05-11 | 陕西科技大学 | Cationic cyanuric chloride derivative tanning agent and preparation method thereof |
| CN113278746A (en) * | 2021-06-03 | 2021-08-20 | 四川大学 | Preparation method of plant biomass-based active tanning agent |
| CN114479061A (en) * | 2022-01-21 | 2022-05-13 | 四川大学 | Polyether amine chlorotriazine telechelic polymer tanning agent, and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104894302A (en) * | 2015-03-30 | 2015-09-09 | 陕西科技大学 | Graphene oxide/iron nanometer composite tanning agent and preparation method thereof |
| CN106435055A (en) * | 2016-10-25 | 2017-02-22 | 齐鲁工业大学 | Antibacterial retanning agent and preparation method thereof |
| CN106674141A (en) * | 2016-12-07 | 2017-05-17 | 陕西科技大学 | Preparation method of chromium-free tanning agent |
-
2017
- 2017-12-29 CN CN201711498483.2A patent/CN108085434B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104894302A (en) * | 2015-03-30 | 2015-09-09 | 陕西科技大学 | Graphene oxide/iron nanometer composite tanning agent and preparation method thereof |
| CN106435055A (en) * | 2016-10-25 | 2017-02-22 | 齐鲁工业大学 | Antibacterial retanning agent and preparation method thereof |
| CN106674141A (en) * | 2016-12-07 | 2017-05-17 | 陕西科技大学 | Preparation method of chromium-free tanning agent |
Non-Patent Citations (1)
| Title |
|---|
| 杨贵宝: "三聚氯氰与脂肪族多胺的反应研究及树枝状多臂引发核的制备", 《万方学位论文数据库》 * |
Cited By (12)
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| CN111363864A (en) * | 2018-12-26 | 2020-07-03 | 温州大学 | Nonmetal cation tanning agent and preparation method thereof |
| CN109971898A (en) * | 2019-04-10 | 2019-07-05 | 温州大学 | A kind of nonmetallic tanning agent of environment-friendly type amphoteric ion and preparation method thereof |
| CN109971898B (en) * | 2019-04-10 | 2021-06-22 | 温州大学 | Zwitterionic non-metal tanning agent |
| CN110343789A (en) * | 2019-08-01 | 2019-10-18 | 四川德赛尔化工实业有限公司 | Process for tanning |
| CN110343789B (en) * | 2019-08-01 | 2021-08-17 | 四川德赛尔化工实业有限公司 | Tanning process |
| CN111118233A (en) * | 2019-12-24 | 2020-05-08 | 温州大学 | Organic chloride tanning agent containing salicylic acid structure and preparation method thereof |
| CN111118233B (en) * | 2019-12-24 | 2022-04-01 | 温州大学 | Organic chloride tanning agent containing salicylic acid structure and preparation method thereof |
| CN111979364A (en) * | 2020-09-09 | 2020-11-24 | 四川亭江新材料股份有限公司 | Low-molecular-weight aqueous polyurethane type leather organic tanning agent and preparation method and application thereof |
| CN112029064A (en) * | 2020-09-09 | 2020-12-04 | 四川亭江新材料股份有限公司 | Amino-terminated polyurethane of synthetic tanning agent and preparation method and application thereof |
| CN112778226A (en) * | 2021-01-09 | 2021-05-11 | 陕西科技大学 | Cationic cyanuric chloride derivative tanning agent and preparation method thereof |
| CN113278746A (en) * | 2021-06-03 | 2021-08-20 | 四川大学 | Preparation method of plant biomass-based active tanning agent |
| CN114479061A (en) * | 2022-01-21 | 2022-05-13 | 四川大学 | Polyether amine chlorotriazine telechelic polymer tanning agent, and preparation method and application thereof |
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