CN105586446B - A kind of method that eases back of aging ox-hide leather - Google Patents
A kind of method that eases back of aging ox-hide leather Download PDFInfo
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- CN105586446B CN105586446B CN201610066453.3A CN201610066453A CN105586446B CN 105586446 B CN105586446 B CN 105586446B CN 201610066453 A CN201610066453 A CN 201610066453A CN 105586446 B CN105586446 B CN 105586446B
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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
- C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
-
- 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
- C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
- C14C9/02—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes using fatty or oily materials, e.g. fat liquoring
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The present invention relates to a kind of method that eases back of aging ox-hide leather, this method includes：Aging ox-hide leather is subjected to the first washing successively, the first ethanol is washed and washes the leather of the aging ox-hide after being cleaned with the first ethylene glycol；It is 1 that aging ox-hide after cleaning, which is removed from office according to solid-liquid mass ratio,：(3 50) immerse tenderising soln in carry out first heating, first be ultrasonically treated and stir primary treatment aging ox-hide leather；After the aging ox-hide leather of primary treatment is carried out into clot, be again dipped into the tenderising soln carry out the second heating and second be ultrasonically treated after, successively by carbon tetrachloride is washed, glycerine is washed, alkali cleaning, the second ethylene glycol are washed, the second ethanol wash with eased back after the second washing and airing after ox-hide leather；It is 1 that tenderising soln, which includes mass ratio,：(2‑50)：(3‑60)：(2‑40)：(2‑30)：Tallow, glycerine, ethane, ethanol, ethylene glycol and the water of (10 100).Beneficial effects of the present invention are：The pliability of ox-hide leather, elongation at break are significantly improved after easing back.
Description
Technical field
The present invention relates to field of leather, and in particular to a kind of method that eases back of aging ox-hide leather.
Background technology
Leather is to be used for keep warm by the mankind, hide body and cover the earliest dress material of body, directly from animal body
What is stripped down is called " rawhide ", and for rawhide after the tanning of distinct methods processing, one kind with hair is referred to as " fur coat ", and plucked one
Class is called " leather ", and they are animal skin has different qualities leather goods materials made of after the processing of different manufacturing process
Material.According to investigations, the mankind process the history of animal skin, the African continent that can be traced back to before 600,000 years.And China also it is early in ancient times
Oneself is develop and useedd to animal's leather, and its usage history is much earlier than other textiles.It is main due to leather and fur products
Composition is protein, uses or places through long-time, and leather and fur products can be acted on by factors such as light, heat, wet and microorganisms, skin
The materials such as moisture content and grease in leather can be gradually lost in, and collagenous fiber bundle can be closely crosslinked together, and tropocollagen molecule can also be sent out
Raw different degrees of degraded, there occurs aging, the leather after aging can change colour, be stiff, be brittle, easily splitting leather and fur products.When long
Between Exposure to Sunlight under, itself peptide chain of collagenous fibres molecule can be cracked, and intermolecular oxygen key can be also broken, therefore collagen is fine
The network-like structure of dimension is destroyed, intermolecular reaction force attenuation, leather discoloration, is hardened, deterioration in physical properties；Moisture and oil
The space that fat is present between collagenous fiber bundle, too high temperature can cause the loss of leather internal moisture and grease, leather meeting
Become stiff, brittle；Ambient humidity is too high, and leather can absorb the moisture in environment, be swelled collagenous fiber bundle, if ring
The unexpected step-down of border humidity, moisture can largely be lost in suddenly between fiber, and distance reduces between fiber, and cohesive force sharply increases, between fiber
Polar side chain is attracted each other, and produces new crosslinking, and fibre structure changes, and leather shrinks curling, is hardened.Leather aging
Afterwards, apparent, performance etc. is all greatly reduced, and has a strong impact on the use of leather.
Chinese patent CN104846128A discloses a kind of bating agent, and it is prepared from the following raw materials in parts by weight：
Acrylate 6-14 parts, lauryl sodium sulfate 3-11 parts, ammonium persulfate 4-10 parts, ethanol 3-9 parts, phosphoglyceride 4.5-10
Part, ethylene-vinyl acetate copolymer 6-13 parts, sulfonation grease 2-8 parts, solvent 2-7 parts, emulsifying agent 2-6 parts, fatty alcohol polyoxy second
Alkene ether 3.5-10 parts, mould inhibitor 4-10 parts, bar wax 3-10 parts, ethylparaben 3-8 parts.The bating agent of the invention, can
Leather softness is improved well, improves the feel of leather；The gas permeability of leather is improved simultaneously, adds service life.
Chinese patent CN104947433A discloses a kind of long-acting bating agent, its by following parts by weight raw material
It is made：Acrylic acid 6-14 parts, acrylonitrile 3-8 parts, polyethylene glycol oxide 2-7 parts, niter cake 4.5-8 parts, polyether-modified is hydrophilic
Property silicone oil 3-10 parts, peregal 3.2-7 parts, n-octyl-isothiazolin ketone 2-7 parts, lanolin 3-9 parts, ethylparaben 2.5-6
Part, lecithin 1-4 parts, crosslinking agent 3-6.5 parts, dimethyl benzyl group ammonium chloride 6-12 parts, rosin 4-9 parts, PEPA
1.2-3.6 part.The bating agent of the invention, it is possible to increase leather pliability, and improve feel, while can be in table
Face forms layer protecting film, improves service life.
Conventional bating agent adds many poisonous and hazardous industrial chemicals such as surfactants in preparation process
Deng can cause greatly to pollute to environment while this kind of bating agent is produced；And conventional research only drawn it is soft
The preparation method of agent does not illustrate how to make aging leather ease back.
The content of the invention
In order to solve above mentioned problem existing for prior art, the invention provides a kind of aging ox-hide leather the method that eases back,
The tenderising soln of the present invention does not contain contaminative raw material, and the method for easing back of aging ox-hide leather can soften well it is old
The ox-hide leather of change.
The technical solution adopted in the present invention is：
A kind of method that eases back of aging ox-hide leather, this method include：Aging ox-hide leather is subjected to the first washing, first successively
Ethanol is washed to be washed with the first ethylene glycol, the aging ox-hide leather after being cleaned；Aging ox-hide after cleaning is removed from office according to solid-liquid quality
Than for 1：(3-50), which is immersed in tenderising soln, carries out the first heating, the first supersound process and stirring, obtains the aging of primary treatment
Ox-hide is removed from office；After the aging ox-hide of primary treatment leather is carried out into clot, be again dipped into the tenderising soln carry out the second heating and
After second is ultrasonically treated, washed successively by carbon tetrachloride, glycerine is washed, alkali cleaning, the second ethylene glycol is washed, the second ethanol is washed and the second water
Wash and after airing, the ox-hide leather after being eased back；Wherein, it is 1 that the tenderising soln, which includes mass ratio,：(2-50)：(3-60)：
(2-40)：(2-30)：Tallow, glycerine, ethane, ethanol, ethylene glycol and the water of (10-100).
Preferably, the mass ratio of tallow described in the tenderising soln, glycerine, ethane, ethanol, ethylene glycol and water is 1：
(3-10)：(5-20)：(3-15)：(5-20)：(20-80).
Preferably, the tenderising soln also includes castor oil, palm oil and amido silicon oil, wherein the tallow and castor-oil plant
The mass ratio of oil, palm oil and amido silicon oil is 1：(3-20)：(5-30)：(10-20).
Preferably, first washing is 1 according to the mass ratio of aging ox-hide leather and clear water：(3-10) changes 1-5 times clearly
Water is washed；Second washing is 1 according to the aging ox-hide leather of primary treatment and the mass ratio of clear water：(3-10) changes 1-
5 times clear water is washed.
Preferably, it is 1 that first ethanol, which is washed according to the mass ratio of aging ox-hide leather and ethanol,：(2-8) changes 1-3 second
Alcohol carries out ethanol and washed；It is 1 that second ethanol, which is washed according to the aging ox-hide leather of primary treatment and the mass ratio of ethanol,：(2-8) more
1-3 ethanol progress ethanol is changed to wash.
Preferably, it is 1 that first ethylene glycol, which is washed according to the mass ratio of aging ox-hide leather and ethylene glycol,：(2-5) changes 1-3
Secondary ethylene glycol carries out ethylene glycol and washed；Second ethylene glycol washes the mass ratio of the aging ox-hide leather and ethylene glycol according to primary treatment
For 1：(2-5) changes 1-3 ethylene glycol progress ethylene glycol and washed.
Preferably, the temperature of first heating is 35-85 degrees Celsius, heat time 30min-12h；Described second adds
The temperature of heat is 35-85 degrees Celsius, heat time 30min-12h；Described first frequency being ultrasonically treated is 30-60KHz, when
Between be 30min-12h；Described second frequency being ultrasonically treated is 30-60KHz, time 30min-12h.
Preferably, first heating, first are ultrasonically treated and stirred is carried out simultaneously；Second heating and the second ultrasound
Processing is carried out simultaneously.
Preferably, the clot is to remove from office the aging ox-hide of primary treatment to be rolled according to the most mode of volume number beaten
It is fixed after coming.
Preferably, the carbon tetrachloride is washed to be 1 according to the aging leather of primary treatment and the mass ratio of carbon tetrachloride：
(3-7) changes 1-3 carbon tetrachloride progress carbon tetrachloride and washed；The glycerine is washed as according to the aging leather and glycerine of primary treatment
Mass ratio be 1：(2-6) changes 1-2 glycerine progress glycerine and washed；It according to solid-to-liquid ratio is 1 that the alkali cleaning, which is,：(3-10) is by primary
The aging leather of processing is put into the sodium hydroxide solution that concentration is 0.5-3mol/L and washed.
Beneficial effects of the present invention are：
1st, aging ox-hide leather is by after easing back, leather surface is provided with preferable gloss；
2nd, the pliability of ox-hide leather, elongation at break are significantly improved after easing back；
3rd, tenderising soln of the invention composition is simple, does not contain the strong chemical industry former material of the environmental pollutions such as surfactant
Material；
4th, aging ox-hide of the invention leather eases back, and method is simple to operate, raw material is cheap and easy to get, is adapted to industrial applications.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical scheme will be carried out below
Detailed description.Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are resulting on the premise of creative work is not made to be owned
Other embodiment, belong to the scope that the present invention is protected.
The present invention provides a kind of method that eases back of aging ox-hide leather, and this method includes：Aging ox-hide leather is carried out the successively
One washing, the first ethanol are washed and washed with the first ethylene glycol, the aging ox-hide leather after being cleaned；Aging ox-hide leather after cleaning is pressed
It is 1 according to solid-liquid mass ratio：(3-50), which is immersed in tenderising soln, carries out the first heating, the first supersound process and stirring, obtains primary
The aging ox-hide leather of processing；After the aging ox-hide leather of primary treatment is carried out into clot, it is again dipped into the tenderising soln and carries out
Second heating and second be ultrasonically treated after, washed successively by carbon tetrachloride, glycerine is washed, alkali cleaning, the second ethylene glycol are washed, the second ethanol
Wash with after the second washing and airing, the ox-hide after being eased back is removed from office；Wherein, it is 1 that the tenderising soln, which includes mass ratio,：(2-
50)：(3-60)：(2-40)：(2-30)：Tallow, glycerine, ethane, ethanol, ethylene glycol and the water of (10-100).
According to the present invention, tallow described in the tenderising soln, glycerine, ethane, ethanol, the mass ratio of ethylene glycol and water
Can be 1：(3-10)：(5-20)：(3-15)：(5-20)：(20-80).
According to the present invention, the tenderising soln can also include castor oil, palm oil and amido silicon oil, wherein the butter
The mass ratio of fat and castor oil, palm oil and amido silicon oil can be 1：(3-20)：(5-30)：(10-20).
According to the present invention, it is 1 that first washing, which can be removed from office according to aging ox-hide with the mass ratio of clear water,：(3-10) is changed
1-5 times clear water is washed；Second washing can be 1 according to the aging ox-hide leather of primary treatment and the mass ratio of clear water：
(3-10) changes 1-5 clear water and washed.
According to the present invention, it is 1 that first ethanol, which is washed and can removed from office according to aging ox-hide with the mass ratio of ethanol,：(2-8) more
1-3 ethanol progress ethanol is changed to wash；Second ethanol is washed can be according to the quality of the aging ox-hide leather and ethanol of primary treatment
Than for 1：(2-8) changes 1-3 ethanol progress ethanol and washed.
According to the present invention, it is 1 that first ethylene glycol, which is washed and can removed from office according to aging ox-hide with the mass ratio of ethylene glycol,：(2-
5) 1-3 ethylene glycol progress ethylene glycol is changed to wash；Second ethylene glycol wash can according to primary treatment aging ox-hide leather with
The mass ratio of ethylene glycol is 1：(2-5) changes 1-3 ethylene glycol progress ethylene glycol and washed.
According to the present invention, the temperature of first heating can be 35-85 degrees Celsius, and the heat time can be 30min-
12h；The temperature of second heating can be 35-85 degrees Celsius, and the heat time can be 30min-12h；First ultrasound
The frequency of processing can be 30-60KHz, and the time can be 30min-12h；Described second frequency being ultrasonically treated can be 30-
60KHz, time can be 30min-12h.
According to the present invention, first heating, first are ultrasonically treated and can carried out simultaneously with stirring；It is described second heating and
Second is ultrasonically treated and can carry out simultaneously.
According to the present invention, the clot can remove from office the aging ox-hide of primary treatment according to the most mode of volume number beaten to enter
Row is fixed after rolling.
According to the present invention, it can be according to the aging leather of primary treatment and the quality of carbon tetrachloride that the carbon tetrachloride, which is washed,
Than for 1：(3-7) changes 1-3 carbon tetrachloride progress carbon tetrachloride and washed；The glycerine is washed can be for according to the aging of primary treatment
The mass ratio of leather and glycerine is 1：(2-6) changes 1-2 glycerine progress glycerine and washed；The alkali cleaning can be
1：The aging leather of primary treatment is put into the sodium hydroxide solution that concentration is 0.5-3mol/L and washed by (3-10).
The present invention will be further illustrated by embodiment below, but the present invention is not therefore subject to any restriction.
Unless otherwise instructed, instrument and reagent of the present invention are commercially available, and the commodity of different brands do not influence specifically to make
With.
Ox-hide leather goods of the usage time that aging ox-hide used in the embodiment of the present invention is removed from office after 1-7 recovery, including
Ox-hide removes from office fur clothing, leather shoes and skin ornaments processed etc..
The embodiment of the present invention ease back after ox-hide leather pliability test:Using leather softness instrument (TNG15A) to ox-hide
Leather carries out pliability test, and 3 differences are chosen to same sample and is tested and is averaged.
The embodiment of the present invention ease back after ox-hide leather elongation at break computational methods：E=(L1-L0)/L0* 100%, E are
Elongation at break, L0For sample raw footage, L1For sample fracture when length.
Embodiment 1
Mass ratio according to aging ox-hide leather and clear water is 1：3 progress clear water 1 time are washed, according to aging ox-hide leather and ethanol
Mass ratio is 1：2 ethanol are washed 1 time, and the mass ratio according to aging ox-hide leather and ethylene glycol is 1：2 ethylene glycol are washed 1 time, are cleaned
Aging ox-hide leather afterwards；It is 1 that aging ox-hide after cleaning, which is removed from office according to solid-liquid mass ratio,：3 immerse mass ratio for 1：2：3：2：2：
In the tenderising soln that 10 tallow, glycerine, ethane, ethanol, ethylene glycol and water forms 35 are carried out under 30KH ultrasounds and stirring
Degrees Centigrade 30min obtains the aging ox-hide leather of primary treatment.The aging ox-hide leather of primary treatment is most according to the volume number beaten
Mode rolled after it is fixed after be again dipped into above-mentioned tenderising soln, 35 degrees Centigrades are carried out under 30KHz ultrasounds
After 30min successively according to the mass ratio of leather and carbon tetrachloride be 1：3 progress carbon tetrachloride wash 1 time, the quality of leather and glycerine
Than for 1：2 progress glycerine wash 1 time, solid-to-liquid ratio 1：3 are put into aging leather in the sodium hydroxide solution that concentration is 0.5mol/L
The mass ratio of washing, leather and ethylene glycol is 1：2 progress ethylene glycol wash 1 time, the mass ratio of leather and ethanol be 1：2 carry out ethanol
Wash 1 time, ox-hide is removed from office and the mass ratio of clear water is 1：3 clear water 1 wash after 1 time the leather of the ox-hide after airing is eased back RNP-1.
Embodiment 2
Mass ratio according to aging ox-hide leather and clear water is 1：10 5 clear water of replacing are washed, and are removed from office according to aging ox-hide
Mass ratio with ethanol is 1：8, which change 3 ethanol progress ethanol, washes, and the mass ratio according to aging ox-hide leather and ethylene glycol is 1：5
Change 3 ethylene glycol progress ethylene glycol to wash, the aging ox-hide leather after being cleaned；Aging ox-hide after cleaning is removed from office according to solid-liquid
Mass ratio is 1：50 immerse mass ratio for 1：20：:30：20：50：60：40：30：100 tallow, castor oil, palm oil, ammonia
In the tenderising soln that base silicone oil, glycerine, ethane, ethanol, ethylene glycol and water form, progress 85 is Celsius under 60KH ultrasounds and stirring
The degree heating 12h times obtain the aging ox-hide leather of primary treatment.The aging ox-hide leather of primary treatment is most according to the volume number beaten
It is again dipped into after mode is fixed after being rolled in above-mentioned tenderising soln, 85 degrees Centigrade 12h is carried out under 60KHz ultrasounds
Afterwards successively according to the mass ratio of leather and carbon tetrachloride be 1：7 change 3 carbon tetrachloride carry out carbon tetrachloride wash, leather and glycerine
Mass ratio be 1：The 6 glycerine progress glycerine of replacing 2 times are washed, solid-to-liquid ratio 1：10 are put into aging leather the hydrogen that concentration is 3mol/L
The mass ratio of washing, leather and ethylene glycol is 1 in sodium hydroxide solution：5 change 3 ethylene glycol carry out ethylene glycol wash, leather and second
The mass ratio of alcohol is 1：It is 1 that the 8 ethanol progress ethanol of replacing 3 times, which are washed, ox-hide is removed from office with the mass ratio of clear water：10 5 clear water of replacing enter
The leather of the ox-hide after rear airing is eased back RNP-2 is washed in water-filling.
Embodiment 3
Mass ratio according to aging ox-hide leather and clear water is 1：6 replacing 3 clear water is washed, according to aging ox-hide leather with
The mass ratio of ethanol is 1：5, which change 2 ethanol progress ethanol, washes, and the mass ratio according to aging ox-hide leather and ethylene glycol is 1：3.5
Change 2 ethylene glycol progress ethylene glycol to wash, the aging ox-hide leather after being cleaned；Aging ox-hide after cleaning is removed from office according to solid-liquid
Mass ratio is 1：25 immerse mass ratio for 1：3：5：10：25：30：22：17：55 tallow, castor oil, palm oil, amino silicone
In the tenderising soln that oil, glycerine, ethane, ethanol, ethylene glycol and water form, carry out 60 degrees Celsius in 45KH ultrasounds and under stirring and add
The hot 6h times obtain the aging ox-hide leather of primary treatment.The aging ox-hide of primary treatment is removed from office according to the most mode of volume number beaten to enter
It is again dipped into above-mentioned tenderising soln, is carried out under 45KHz ultrasounds after 60 degrees Centigrade 6h successively after row is fixed after rolling
It is 1 according to the mass ratio of leather and carbon tetrachloride：5 change 2 carbon tetrachloride carry out carbon tetrachloride wash, the quality of leather and glycerine
Than for 1：The 4 glycerine progress glycerine of replacing 2 times are washed, solid-to-liquid ratio 1：6 are put into aging leather the sodium hydroxide that concentration is 2mol/L
The mass ratio of washing, leather and ethylene glycol is 1 in solution：3.5 change 2 ethylene glycol carry out ethylene glycol wash, leather and ethanol
Mass ratio is 1：It is 1 that the 5 ethanol progress ethanol of replacing 2 times, which are washed, ox-hide is removed from office with the mass ratio of clear water：53 clear water of replacing are washed
Ox-hide leather RNP-3 after airing is eased back afterwards.
To in embodiment 1, embodiment 2, embodiment 3 through ease back processing after ox-hide leather RNP-1, RNP-2, RNP-3 and
Aging ox-hide leather without any processing carries out pliability and the test result of elongation at break is shown in Table 1.
From embodiment 1-3 and table 1, aging ox-hide provided by the invention removes from office the method that eases back, and can make aging well
The physical property of ox-hide leather is improved, and the aging leather surface after easing back is provided with preferable gloss；The ox-hide after easing back
The pliability of leather, elongation at break are significantly improved.
Table 1：Ox-hide removes from office RNP-1, RNP-2, RNP-3 and the aging ox-hide leather without any processing pliability, fracture
Elongation
Claims (10)
- A kind of 1. method that eases back of aging ox-hide leather, it is characterised in that this method includes：Aging ox-hide leather is subjected to the first washing successively, the first ethanol is washed and washed with the first ethylene glycol, the aging ox after being cleaned Leather；It is 1 that aging ox-hide after cleaning, which is removed from office according to solid-liquid mass ratio,：(3-50), which is immersed in tenderising soln, carries out the first heating, the One is ultrasonically treated and stirs, and obtains the aging ox-hide leather of primary treatment；After the aging ox-hide leather of primary treatment is carried out into clot, it is again dipped into the tenderising soln and carries out the second heating and second After supersound process, washed successively by carbon tetrachloride, glycerine is washed, alkali cleaning, the second ethylene glycol are washed, the second ethanol is washed with the second washing simultaneously After airing, the ox-hide leather after being eased back；Wherein, the tenderising soln is 1 by mass ratio：(2-50)：(3-60)：(2-40)：(2-30)：The butter of (10-100) Fat, glycerine, ethane, ethanol, ethylene glycol and water composition.
- 2. the method that eases back of aging ox-hide leather according to claim 1, it is characterised in that ox described in the tenderising soln Grease, glycerine, ethane, ethanol, the mass ratio of ethylene glycol and water are 1：(3-10)：(5-20)：(3-15)：(5-20)：(20- 80)。
- 3. the method that eases back of aging ox-hide leather according to claim 1, it is characterised in that the tenderising soln also includes castor The mass ratio of sesame oil, palm oil and amido silicon oil, the tallow and castor oil, palm oil and amido silicon oil is 1：(3-20)： (5-30)：(10-20).
- 4. the method that eases back of aging ox-hide leather according to claim 1, it is characterised in that first washing is according to aging It is 1 that ox-hide, which is removed from office with the mass ratio of clear water,：(3-10) changes 1-5 clear water and washed；Second washing is according to primary treatment Aging ox-hide leather and the mass ratio of clear water be 1：(3-10) changes 1-5 clear water and washed.
- 5. the method that eases back of aging ox-hide leather according to claim 1, it is characterised in that first ethanol is washed according to old The mass ratio for changing ox-hide leather and ethanol is 1：(2-8) changes 1-3 ethanol progress ethanol and washed；Second ethanol is washed according to primary The aging ox-hide leather of processing and the mass ratio of ethanol are 1：(2-8) changes 1-3 ethanol progress ethanol and washed.
- 6. the method that eases back of aging ox-hide according to claim 1 leather, it is characterised in that first ethylene glycol wash according to It is 1 that aging ox-hide, which is removed from office with the mass ratio of ethylene glycol,：(2-5) changes 1-3 ethylene glycol progress ethylene glycol and washed；Second ethylene glycol It is 1 to wash according to the aging ox-hide leather of primary treatment and the mass ratio of ethylene glycol：(2-5) changes 1-3 ethylene glycol and carries out ethylene glycol Wash.
- 7. the method that eases back of aging ox-hide according to claim 1 leather, it is characterised in that the temperature of first heating is 35-85 degrees Celsius, heat time 30min-12h；The temperature of second heating is 35-85 degrees Celsius, and the heat time is 30min-12h；Described first frequency being ultrasonically treated is 30-60KHz, time 30min-12h；Second supersound process Frequency is 30-60KHz, time 30min-12h.
- 8. the method that eases back of aging ox-hide leather according to claim 1, it is characterised in that first heating, the first surpass Sonication and stirring are carried out simultaneously；Second heating and the second supersound process are carried out simultaneously.
- 9. the method that eases back of aging ox-hide leather according to claim 1, it is characterised in that the clot is by primary treatment Aging ox-hide leather rolled according to the most mode of volume number beaten after fixation.
- 10. the method that eases back of aging ox-hide according to claim 1 leather, it is characterised in that the carbon tetrachloride wash for by The mass ratio of aging leather and carbon tetrachloride according to primary treatment is 1：(3-7) changes 1-3 carbon tetrachloride and carries out carbon tetrachloride Wash；The glycerine is washed to be 1 according to the aging leather of primary treatment and the mass ratio of glycerine：(2-6) changes 1-2 glycerine and carried out Glycerine is washed；It according to solid-to-liquid ratio is 1 that the alkali cleaning, which is,：It is 0.5-3mol/L that the aging leather of primary treatment is put into concentration by (3-10) Sodium hydroxide solution in wash.
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| CN201610066453.3A CN105586446B (en) | 2016-01-29 | 2016-01-29 | A kind of method that eases back of aging ox-hide leather |
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| CN201610066453.3A CN105586446B (en) | 2016-01-29 | 2016-01-29 | A kind of method that eases back of aging ox-hide leather |
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| JP4897649B2 (en) * | 2007-11-02 | 2012-03-14 | 佳裕 徳永 | Manufacturing method of embossed leather material |
| CN103571982B (en) * | 2013-10-28 | 2015-10-14 | 浙江理工大学 | A kind of method that eases back of aging leather cultural relic |
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