CN106350620B - A kind of compound lipases degreasing agent and its application - Google Patents
A kind of compound lipases degreasing agent and its application Download PDFInfo
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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
- C14C5/00—Degreasing leather
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Abstract
The present invention relates to leather defatting technology fields, the present invention provides a kind of compound lipases degreasing agent and its applications, compound lipases degreasing agent provided by the invention includes: the lipase of 15~25 parts by weight and the surfactant of 10~15 parts by weight, and the lipase is neutral lipase or alkaline lipase；The surfactant is selected from one of sulfonate surfactant and polyethenoxy ether class surfactant or a variety of.The present invention mainly by the synergistic effect of the lipase and surfactant, improves lipase to the palliating degradation degree of grease, intradermal grease is easy to elute from scytoblastema, to reach efficient degreasing effect.The present invention is suitable for the degreasing of various Animal Skins such as pigskin, sheepskin, goat skin, buffalo hide etc., to cladding action temperature and economic, environmentally friendly, the degreasing suitable for each different processes.
Description
Technical field
The present invention relates to leather defatting technology field more particularly to a kind of compound lipases degreasing agent and its applications.
Background technique
Leather typically refers to be lost hair or feathers and the physics such as tanning, chemical process is obtained, it is not perishable dynamic to be denaturalized
Object skin；Leather is to be made of natural protein fibre in three-dimensional space close weave, and there are a kind of special grain layer, tool in surface
There are natural graining and gloss, comfortable feel.The process of rawhide processing finished leather mainly there are into preparation, tanning and arranges three ranks
Section；Wherein, the preparation stage includes the processes such as immersion, fleshing, liming depilation, softening and pickling, is in rawhide and is prepared to enter into tan
The state of system.The tanning stage is the stage of qualitative change that rawhide is changed into leather, and perishable rawhide is made to become non-perishable leather.It is whole
The reason stage is mainly from beautiful and commodity required angle ornamenting, such as dyes, draws soft, open and flat and cover with paint, lacquer, colour wash, etc..In the preparation stage, for richness
Grease-contained raw material skin, intracutaneous grease can hinder knot of the various tanning chemistry product to intracutaneous infiltration and with materials with hide glue fibril
It closes, meanwhile, if intradermal grease removes unclean in leather making process, it is also easy to the problem of causing bloom.Therefore, degreasing is for richness
Grease-contained raw material skin has very important effect.
Current main degreasing method has lipase degreasing and surfactant degreasing, and lipase degreasing is urged with lipase
Change intradermal grease hydrolysis, glycerol, fatty acid, monoglyceride, diglyceride is generated, to achieve the purpose that degreasing.Surfactant degreasing
It is to be emulsified to intradermal grease using the method for emulsification to achieve the purpose that degreasing.Both methods is current using most
Degreasing method, wherein the method for lipase degreasing is more environmentally friendly.But lipase preparation currently on the market is to intradermal grease
Hydrolysis degree it is not high, degreasing effect is poor.
Summary of the invention
In view of this, the application provides a kind of compound lipases degreasing agent and its application, compound fat provided by the invention
Enzyme degreasing agent has excellent degreasing effect.
The present invention provides a kind of compound lipases degreasing agent, comprising:
The lipase of 15~25 parts by weight, the lipase are neutral lipase or alkaline lipase；
The surfactant of 10~15 parts by weight, the surfactant are selected from sulfonate surfactant and polyoxy second
One of alkene ether surfactant is a variety of.
Preferably, the surfactant is selected from neopelex, succinic acid sulfonate, AEO-9 and paregal O
One of or it is a variety of.
Preferably, the compound lipases degreasing agent further includes the zymoexciter of A parts by weight, 0 A≤10 <.
Preferably, the zymoexciter is selected from one of calcium salt and silicate or a variety of.
Preferably, the compound lipases degreasing agent further includes the pH stabilizer of B parts by weight, 0 B≤30 <.
Preferably, the compound lipases degreasing agent further includes the diluent of C parts by weight, 0 C≤70 <.
The present invention provides the degreasing method in a kind of production of leather, comprising:
Using compound lipases degreasing agent described above, degreasing in degreasing or softening, is obtained after soaking raw material skin
Scytoblastema after to degreasing.
Preferably, after the immersion when degreasing, temperature is 38~40 DEG C；The raw material skin and compound lipases degreasing agent
Mass ratio is 100:(2~3).
Preferably, in the softening when degreasing, temperature is 30~32 DEG C；The raw material skin and compound lipases degreasing agent
Mass ratio is 100:(0.3~1).
Preferably, the raw material skin is pigskin, sheepskin, goat skin or buffalo hide.
Compared with prior art, compound lipases degreasing agent provided by the invention is mainly by lipase and surfactant group
At the weight ratio of the two is (15~25): (10~15)；Wherein, the lipase is neutral or alkaline lipase；The surface
Activating agent is selected from one of sulfonate surfactant and polyethenoxy ether class surfactant or a variety of.The present invention is main
By the synergistic effect of the lipase and surfactant, improve lipase to the palliating degradation degree of grease, intradermal grease is easy
In being eluted from scytoblastema, to reach efficient degreasing effect.The present invention is suitable for various Animal Skins such as pigskin, sheepskin, mountain
The degreasing of sheepskin, buffalo hide etc., to cladding action temperature and economic, environmentally friendly, the degreasing suitable for each different processes.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of compound lipases degreasing agents, comprising:
The lipase of 15~25 parts by weight, the lipase are neutral lipase or alkaline lipase；
The surfactant of 10~15 parts by weight, the surfactant are selected from sulfonate surfactant and polyoxy second
One of alkene ether surfactant is a variety of.
In view of the deficiencies of the prior art, it the object of the present invention is to provide a kind of compound lipases degreasing agent, can solve existing
The problems such as lipase preparation degradation grease degree is low, and degreasing power is insufficient.
Compound lipases degreasing agent provided by the invention includes the lipase of 15~25 parts by weight, preferably includes 20~24 weights
Measure the lipase of part.Lipase (Lipase, glycerol ester hydrolase) is under the jurisdiction of carboxylic ester hydrolase class, can be step by step by glycerol
Three ester hydrolysis are at glycerol and fatty acid.In the present invention, the lipase is neutral lipase or alkaline lipase；Alkaline fat
Enzyme is the enzyme of the ester bond in hydrolyzed fat under alkaline condition.In embodiments of the present invention, the enzyme activity of the lipase can be 5
Ten thousand units/g.
In some embodiments of the invention, it is 6.5-8.5, enzyme activity 5 that the lipase, which includes: Optimun pH,
The lipase GL100 that ten thousand units/g Novozymes Company sells；Optimun pH is 6.5-11, and enzyme activity is 50,000 units/g
Novozymes Company sell lipase Ultra G.In other embodiments, the lipase includes: that Optimun pH is
6.5-8.5, enzyme activity are the lipase LE100 20kg that 50,000 units/g Novozymes Company sells；Optimun pH is
7.0-12, enzyme activity are the lipase Greasex that 50,000 units/g Novozymes Company sells.In other embodiment, the rouge
Fat enzyme are as follows: Optimun pH 6.5-8.5, enzyme activity are the lipase GL100 that 50,000 units/g Novozymes Company sells.
In the present invention, the compound lipases degreasing agent includes the surfactant of 10~15 parts by weight.For being rich in
The scytoblastema of grease, the present invention can reach preferable degreasing effect without using a large amount of surfactant.In the present invention,
The surfactant is selected from one of sulfonate surfactant and polyethenoxy ether class surfactant or a variety of.Its
In, the sulfonate surfactant can be neopelex, succinic acid sulfonate etc.；The polyoxyethylene ether
Class surfactant can be fatty alcohol polyoxyethylene ether (such as AEO-9, paregal O).The surfactant preferably is selected from ten
One of dialkyl benzene sulfonic acids sodium, succinic acid sulfonate, AEO-9 and paregal O are a variety of, more preferably detergent alkylate sulphur
One of sour sodium, AEO-9 and paregal O are a variety of.It should be noted that paregal O is octadecyl alcolol and oleic alcohol and 15
The product of~20mol ethyleneoxide addition.
In some embodiments of the invention, the surfactant is neopelex.In other embodiments,
The surfactant includes AEO-9 and paregal O.The present invention is mainly made by the collaboration of the lipase and surfactant
With improving lipase to the palliating degradation degree of grease, intradermal grease is easy to elute from scytoblastema, to reach efficient degreasing effect
Fruit.
Compound lipases degreasing agent provided in an embodiment of the present invention includes: the lipase, surfactant and auxiliary agent；Its
In, described auxiliary agent such as zymoexciter, pH stabilizer etc..It is also preferable to include the enzymes of A parts by weight to swash for the compound lipases degreasing agent
Agent living, 0 A≤10 <, preferably 0.5 A≤6 <.The zymoexciter preferably is selected from one of calcium salt and silicate or a variety of, more excellent
It is selected as calcium salt.Wherein, the calcium salt can be calcium chloride, calcium sulfate, calcium nitrate, calcium phosphate etc.；The silicate can be silicon
Sour sodium etc..
In the present invention, the compound lipases degreasing agent is it is also preferable to include the pH stabilizer of B parts by weight, 0 B≤30 <,
It is preferred that 5 B≤15 <.The pH stabilizer can be acidic materials, i.e. at least one of acid and ackd salt, be also possible to alkali
Property substance, i.e. at least one of alkali and basic salt, preferably at least one of alkali and basic salt.Wherein, the acid
Matter can be sodium acetate, potassium dihydrogen phosphate, boric acid etc.；The alkaline matter includes but is not limited to sodium bicarbonate, sodium carbonate, phosphoric acid
Hydrogen dipotassium, sodium tripolyphosphate etc..In a preferred embodiment of the invention, the pH stabilizer includes dipotassium hydrogen phosphate and trimerization phosphorus
Sour sodium, effect are preferable.
In the present invention, for the compound lipases degreasing agent it is also preferable to include the diluent of C parts by weight, 0 C≤70 < are excellent
Select 30 C≤60 <.The diluent is preferably water, is conducive to processing and application.For lipase described in above technical scheme
Degreasing agent, preparation can weigh each component by formula, are uniformly mixed and produce.
The embodiment of the present invention is made using the synergistic effect of the lipase, surfactant, zymoexciter, pH stabilizer
Lipase significantly improves the palliating degradation degree of grease, and intradermal grease is easy to elute from scytoblastema, takes off to reach highly efficient
Rouge effect.Lipase degreasing agent described in above technical scheme can be used for degreasing after the immersion in leather production, degreasing in softening
Deng；It can be suitble to various Animal Skins, such as pigskin, sheepskin, the degreasing of the Animal Skins such as goat skin, buffalo hide.
The present invention provides the degreasing methods in a kind of production of leather, comprising:
Using compound lipases degreasing agent described above, degreasing in degreasing or softening, is obtained after soaking raw material skin
Scytoblastema after to degreasing.
The degreasing application of compound lipases degreasing agent of the invention on the scytoblastema after immersion and in softening process is specific such as
Under:
1, degreasing after soaking
Raw material skin after taking immersion according to a conventional method, is added rotary drum, adds water and compound lipases described above are de-
Rouge agent carries out degreasing.Wherein, after the immersion when degreasing, temperature is preferably 38~40 DEG C；The raw material skin and compound lipases
The mass ratio of degreasing agent is preferably 100:(2~3).
Specifically, 100 parts of Animal Skin after taking conventional soak, rotary drum is added, 200 parts of water, temperature adjustment to 38~40 is added
DEG C, 2.0~3.0 parts of compound lipases degreasing agent that above-mentioned formula is prepared are added, is rotated 60 minutes~90 minutes, after draining, then
200 parts of water are added, rotate 10 minutes~20 minutes, after draining, take out skin.Skin before fat content, with the operation in measurement scytoblastema
Fat content compares in embryo, characterizes compound lipases degreasing agent degreasing power.
2, rear degreasing in softening process
Raw material skin after taking liming deliming according to a conventional method is added in rotary drum, and water, macerating enzyme and described above is being added
Compound lipases degreasing agent carries out degreasing in softening.Wherein, in the softening when degreasing, temperature is preferably 30~32 DEG C；Institute
The mass ratio for stating raw material skin and compound lipases degreasing agent is preferably 100:(0.3~1).
Specifically, rotary drum is added in 100 parts of the Animal Skin after taking conventional liming deliming, and 100 parts of water, temperature adjustment to 30 is added
~32 DEG C, 1.0 parts of macerating enzyme are added, is added 0.3~1.0 part of compound lipases degreasing agent that above-mentioned formula is prepared, is rotated 2 hours
~4 hours, after draining, 200 parts of water are added, are rotated 10 minutes~20 minutes, after draining, takes out skin.Measure grease in scytoblastema
Fat content compares in scytoblastema before content, with the operation, characterizes compound lipases degreasing agent degreasing power.
For a further understanding of the application, below with reference to embodiment to compound lipases degreasing agent provided by the present application and its
Using being specifically described.
In following embodiment, related AEO-9 is provided by BASF China, and paregal O is by Jiangsu Province
Hai'an petrochemical plant provides；Immersion, liming deliming is adjuvant used is provided by Sichuan Dowell Technology Co., Ltd..
Embodiment 1
Table 1 is the immersion process conditions in embodiment 1, and wherein the usage percentage of auxiliary agent and water is using the quality of skin as base
It is quasi-.According to method shown in table 1, soaks respectively sheepskin and pigskin (weight of skin is 100kg), respectively obtain immersion
Pigskin after rear sheepskin and immersion.
For the Animal Skin after immersion, fleshing machine fleshing is used within second day, for degreasing after soaking.
Immersion process conditions in 1 embodiment 1 of table
| Process | Material used | Dosage % | Time (minute) | Remarks |
| Pre- immersion | Normal-temperature water | 500 | ||
| Soda ash | 0.3 | |||
| DOWELLAN FG-C | 0.2 | |||
| DOWELLLIT FMN | 0.2 | 20 | Stop 40 points, 3 times | |
| Immersion | Normal-temperature water | 400 | ||
| Soda ash | 0.5 | |||
| DOWELLLAN SPH | 0.2 | |||
| DOWELLAN FG-C | 0.3 | |||
| DOWELLLIT FMN | 0.2 | 20 | Repeatedly turn to stop, overnight |
Embodiment 2
Table 2 is the liming de-ash process condition in embodiment 2, and wherein the usage percentage of auxiliary agent and water is with the quality of skin
Benchmark.According to method shown in table 2, liming deliming is carried out to sheepskin (weight of skin is 100kg), after obtaining liming deliming
Sheepskin.
Liming de-ash process condition in 2 embodiment 2 of table
Embodiment 3
Degreasing after sheepskin immersion
Taking Optimun pH is 6.5-8.5, and enzyme activity is the lipase that 50,000 units/g Novozymes Company sells
GL100 15kg；Optimun pH is 6.5-11, and enzyme activity is the lipase that 50,000 units/g Novozymes Company sells
Ultra G 5kg；AEO-9 5kg；Paregal O 10kg；Calcium chloride 2kg；Dipotassium hydrogen phosphate 5kg；Sodium tripolyphosphate 5kg；And water
53kg；It is uniformly mixed, compound lipases degreasing agent is made.
Sheepskin 100kg in Example 1 after immersion fleshing, is added rotary drum, adds 200kg water, adjusts temperature and arrives
40 DEG C, the compound lipases degreasing agent 3kg for preparing and obtaining is added, rotates 60 minutes, draining；Then it is 40 that 200kg temperature, which is added,
DEG C water, rotation after ten minutes, draining, take out scytoblastema.
Remaining fat content is measured by sampling in the scytoblastema, compound lipases degreasing agent degreasing rate is calculated, such as 3 institute of table
Show, table 3 is the degreasing effect for the degreasing method that embodiment 3~5 and comparative example 1 provide.After degreasing, sheepskin can routinely technique
Carry out the operations such as subsequent depilation.
Embodiment 4
Sheepskin softening process degreasing
Taking Optimun pH is 6.5-8.5, and enzyme activity is the lipase that 50,000 units/g Novozymes Company sells
LE100 20kg；Optimun pH is 7.0-12, and enzyme activity is the lipase that 50,000 units/g Novozymes Company sells
Greasex 2kg；AEO-9 5kg；Paregal O 5kg；Calcium chloride 3kg；Dipotassium hydrogen phosphate 5kg；Sodium tripolyphosphate 5kg；And water
55kg is uniformly mixed, and compound lipases degreasing agent is made.
The sheepskin 100kg of liming deliming in Example 2 is added in rotary drum, adds 100kg water, adjusts temperature and is
32 DEG C, macerating enzyme SBK 1kg is added, the compound lipases degreasing agent 0.5kg for preparing and obtaining is added, rotates 3 hours, draining；So
200kg water is added afterwards, rotates 10 minutes, scytoblastema is taken out in draining.
Remaining fat content is measured by sampling in the scytoblastema, compound lipases degreasing agent degreasing rate is calculated, such as 3 institute of table
Show.After softening, sheepskin routinely technique can carry out the operation such as subsequent pickling.
Embodiment 5
Degreasing after pigskin immersion
Taking Optimun pH is 6.5-8.5, and enzyme activity is the lipase that 50,000 units/g Novozymes Company sells
GL100 25kg；Neopelex 5kg, paregal O 5kg；Calcium chloride 1kg；Dipotassium hydrogen phosphate 3kg；Sodium tripolyphosphate
2kg；Sodium metasilicate 5kg；It with water 54kg, is uniformly mixed, compound lipases degreasing agent is made.
Pigskin 100kg in Example 1 after immersion fleshing, is added rotary drum, adds 200kg water, adjusts temperature to 40
DEG C, the compound lipases degreasing agent 3kg for preparing and obtaining is added, rotates 60 minutes, draining；Then it is 40 DEG C that 200kg temperature, which is added,
Water, rotation after ten minutes, draining, take out scytoblastema.
Remaining fat content in scytoblastema is measured by sampling, compound lipases degreasing agent degreasing rate is calculated, as shown in table 3.
After degreasing, routinely technique carries out the operations such as subsequent depilation to pigskin.
Comparative example 1
With Crow, (Shanghai) chemistry Science and Technology Ltd. CELESAL DL is not (market product) as a comparison sample, with implementation
Example 3~5 is compared, and degreasing method uses method identical with embodiment 3~5, and degreasing rate is as shown in table 3.
The degreasing effect for the degreasing method that 3 embodiment 3~5 of table and comparative example 1 provide
As can be seen from Table 3, the lipase degreasing agent degreasing effect of embodiment 3~5 is substantially better than market product.Also,
Degreasing agent provided by the invention degreasing suitable for the different process hides processes of the various grease-contained Animal Skins of richness.
Comparative example 2
Selected surfactant is the C13- carbonyl alcohol ethoxylate that BASF China sells
Lutensol TO8, C10- Gu Bert alcohol alkoxylates Lutensol XL90.
Compare 1: surfactant TO8 5KG, XL90 10KG, AEO-9 5KG in alternative embodiment 3, paregal O
10KG, other formula rates are constant.
2: surfactant TO8 5KG, XL90 5KG, AEO-9 5KG, paregal O 5KG in alternative embodiment 4 are compared,
Other formula rates are constant.
Using with embodiment 3,4 identical degreasing methods, carry out degreasing, degreasing rate is as shown in table 4, table 4 be embodiment 3,4 and
The degreasing effect of comparative example 2.
The degreasing effect of table 4 embodiment 3,4 and comparative example 2
| 3 degreasing method of embodiment | 3 product of embodiment | 1 formula of comparison | 2 formula of comparison |
| Degreasing rate % | 46.35 | 35.65 | 32.97 |
| 4 degreasing method of embodiment | 4 product of embodiment | 1 formula of comparison | 2 formula of comparison |
| Degreasing rate % | 59.67 | 40.76 | 38.18 |
As can be seen from Table 4, using surfactant used in the other kinds of surfactant replacement present invention, match
Its degreasing effect of compound lipases degreasing agent made of system is significantly worse than embodiment 3 or the preferred surfactant of embodiment 4 is matched
The compound lipases degreasing agent of system.
Comparative example 3
1 formula of comparison:
Taking Optimun pH is 6.5-8.5, and enzyme activity is the lipase that 50,000 units/g Novozymes Company sells
GL100 15kg；Optimun pH is 6.5-11, and enzyme activity is the lipase that 50,000 units/g Novozymes Company sells
Ultra G 5kg；AEO-9 10kg；Paregal O 20kg；Calcium chloride 2kg；Dipotassium hydrogen phosphate 5kg；Sodium tripolyphosphate 5kg；With
Water 38kg；It is uniformly mixed, compound lipases degreasing agent is made.
2 formula of comparison:
Taking Optimun pH is 6.5-8.5, and enzyme activity is the lipase that 50,000 units/g Novozymes Company sells
GL100 15kg；Optimun pH is 6.5-11, and enzyme activity is the lipase that 50,000 units/g Novozymes Company sells
Ultra G 5kg；AEO-9 2.5kg；Paregal O 5kg；Calcium chloride 2kg；Dipotassium hydrogen phosphate 5kg；Sodium tripolyphosphate 5kg；With
Water 60.5kg；It is uniformly mixed, compound lipases degreasing agent is made.
Using with embodiment 3,4 identical degreasing methods, carry out degreasing, degreasing rate is as shown in table 5, table 5 be embodiment 3,4 and
The degreasing effect of comparative example 3.
The degreasing effect of table 5 embodiment 3,4 and comparative example 3
| 3 degreasing method of embodiment | 3 product of embodiment | 1 formula of comparison | 2 formula of comparison |
| Degreasing rate % | 46.35 | 28.87 | 31.31 |
| 4 degreasing method of embodiment | 4 product of embodiment | 1 formula of comparison | 2 formula of comparison |
| Degreasing rate % | 59.67 | 30.55 | 33.86 |
Using the ratio except mass ratio of the present invention it can be seen from 5 result of table, surfactant is excessively and very few, right
The degreasing effect of compound lipases degreasing agent has and obviously influences, and degreasing power is significantly worse than to be used in the present invention
The degreasing power for the compound lipases degreasing agent that mass ratio is prepared.
As seen from the above embodiment, compound lipases degreasing agent provided by the invention is mainly by lipase and surfactant
Composition, the weight ratio of the two are (15~25): (10~15)；Wherein, the lipase is neutral or alkaline lipase；The table
Face activating agent is selected from one of sulfonate surfactant and polyethenoxy ether class surfactant or a variety of.Master of the present invention
Improve lipase to the palliating degradation degree of grease, intradermal grease by the synergistic effect of the lipase and surfactant
It is easy to elute from scytoblastema, to reach efficient degreasing effect.The present invention be suitable for various Animal Skins for example pigskin, sheepskin,
The degreasing of goat skin, buffalo hide etc., to cladding action temperature and economic, environmentally friendly, the degreasing suitable for each different processes.
The above is only a preferred embodiment of the present invention, it is noted that for making the professional technique of the art
Personnel are that by various modifications to these embodiments without departing from the technical principles of the invention, and these
Modification also should be regarded as the range that the present invention should protect.
Claims (5)
1. a kind of compound lipases degreasing agent, comprising:
The lipase of 15~25 parts by weight, the lipase are neutral lipase or alkaline lipase, the enzyme activity of the lipase
Power is 50,000 units/g；
The surfactant of 10~15 parts by weight, the surfactant are AEO-9 and paregal O；
The compound lipases degreasing agent further includes the zymoexciter of A parts by weight, and 0 A≤10 <, the zymoexciter is selected from calcium salt
With one of silicate or a variety of；
The compound lipases degreasing agent further includes the pH stabilizer of B parts by weight, 0 B≤30 <；The pH stabilizer includes phosphoric acid
Hydrogen dipotassium and sodium tripolyphosphate；
The compound lipases degreasing agent further includes the diluent of C parts by weight, 0 C≤70 <.
2. the degreasing method in a kind of leather production, comprising:
Using compound lipases degreasing agent described in claim 1, degreasing in degreasing or softening, is obtained after soaking raw material skin
Scytoblastema after to degreasing.
3. degreasing method according to claim 2, which is characterized in that after the immersion when degreasing, temperature is 38~40 DEG C；
The mass ratio of the raw material skin and compound lipases degreasing agent is 100:(2~3).
4. degreasing method according to claim 2, which is characterized in that in the softening when degreasing, temperature is 30~32 DEG C；
The mass ratio of the raw material skin and compound lipases degreasing agent is 100:(0.3~1).
5. the degreasing method according to any one of claim 2~4, which is characterized in that the raw material skin is pigskin, sheep
Skin, goat skin or buffalo hide.
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|---|---|---|---|---|
| CN107164585A (en) * | 2017-07-14 | 2017-09-15 | 四川大学 | A kind of efficient enzyme degreasing method of Animal Skin |
| CN109022633A (en) * | 2018-09-20 | 2018-12-18 | 四川大学 | A kind of efficient degreasing method of surfactant-free process hides Animal Skin based on lipase |
| CN110477261A (en) * | 2019-08-05 | 2019-11-22 | 武汉市农业科学院 | It is a kind of for the compound degreasing liquid of fish guts protein extraction and its application |
| CN111592941A (en) * | 2020-06-02 | 2020-08-28 | 上海金狮化工有限公司 | Composite biological degreasing agent and application thereof |
| CN111944935B (en) * | 2020-06-30 | 2023-01-17 | 汤普勒新材料嘉兴有限公司 | Leather degreasing agent based on ionic liquid and preparation method thereof |
| CN111826483A (en) * | 2020-07-23 | 2020-10-27 | 嘉兴学院 | Leather degreasing agent and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831362A (en) * | 2010-06-10 | 2010-09-15 | 中国皮革和制鞋工业研究院 | High efficiency low-foaming blue leather degreaser |
| CN104877790A (en) * | 2015-04-01 | 2015-09-02 | 四川大学 | Efficient and compound lipase for making leather |
-
2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831362A (en) * | 2010-06-10 | 2010-09-15 | 中国皮革和制鞋工业研究院 | High efficiency low-foaming blue leather degreaser |
| CN104877790A (en) * | 2015-04-01 | 2015-09-02 | 四川大学 | Efficient and compound lipase for making leather |
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