CN105543422B - Make the method for book-binding leather and its book-binding leather of making using rabbit leather - Google Patents
Make the method for book-binding leather and its book-binding leather of making using rabbit leather Download PDFInfo
- Publication number
- CN105543422B CN105543422B CN201510926723.9A CN201510926723A CN105543422B CN 105543422 B CN105543422 B CN 105543422B CN 201510926723 A CN201510926723 A CN 201510926723A CN 105543422 B CN105543422 B CN 105543422B
- Authority
- CN
- China
- Prior art keywords
- rotary drum
- rabbit
- leather
- family
- book
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
-
- 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
- C14C1/06—Facilitating unhairing, e.g. by painting, by liming
-
- 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
- C14C1/06—Facilitating unhairing, e.g. by painting, by liming
- C14C1/065—Enzymatic unhairing
-
- 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
- C14C11/00—Surface finishing of leather
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/04—Mineral tanning
-
- 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
-
- 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
- C14C3/10—Vegetable tanning
-
- 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
- C14C3/28—Multi-step processes
-
- 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
Landscapes
- 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 invention provides a kind of method that utilization rabbit leather makees book-binding leather, this method obtains a rabbit base as raw material using after family's rabbit by preservative treatment or fresh rabbit immersion, fleshing, comprises the following steps：(1) liming, depilation, (2) deliming, (3) pickling, (4) tanning, (5) retanning and Finishing Process.The method of the invention provides a kind of new approach for the utilization of family's rabbit, for the effective and reasonable utilization of family's rabbit, particularly a large amount of fur coats processed are worth with the effective using there is provided rational approach of low low inferior rabbit, a waste for rabbit resource can not only be reduced, moreover it is possible to avoid because the discarded of low inferior rabbit and caused by environmental pollution.Present invention also offers family's rabbit book-binding leather that a kind of this method makes, the dermatotome of described rabbit book-binding leather is plentiful, grain is flat thin, poor without obvious position, and loose side problem is not susceptible to during making and use.
Description
Technical field
The invention belongs to book-binding leather manufacture field, more particularly to make method and its making of book-binding leather using rabbit leather
Book-binding leather.
Background technology
It is a kind of for coating written or notebook cover leather that book-binding leather, which refers to, and the plasticity of book-binding leather is good, is easy to
Books, as high-grade hard-cover book cover, are played protection and beautification function, and show that it is precious by leather surface stamping and word
Property.Existing book-binding leather is generally made by cattle hide, buffalo hide, goat skin, pigskin through vegetable tannage.
Cattle hide it is expensive, be rarely used in making book-binding leather, conventional buffalo hide replaces cattle hide to make book-binding leather,
Buffalo hide grain is coarse, and the position of hide thickness difference is very big, and thickness is up to 13mm, and thinnest part only has 3mm, belly and buttocks
The ratio between skin depth is about 1:(2.2~2.9), pay particular attention to liming and filling, to reduce skin during book-binding leather is made
Zhang Houdu position is poor.Buffalo hide it is larger, operation is laborious, cuts out workload also larger.Pigskin grain is coarse, and fat contains
Amount accounts for the infiltration of chemicals when substantial amounts of fat can not only have a strong impact on tanning in the 10%~30% of tare weight, cortex, and
And the covering with paint of semi-finished product can be influenceed；Meanwhile, the position difference of pigskin hide thickness is very big, and the ratio between skin depth of belly and buttocks is reachable
1:(4~5), even across sufficient filling, also can not effectively eliminate pigskin thickness position it is poor also, excessive position it is poor
Chemical reagent in manufacturing process can be caused inconsistent in the infiltration of hide different parts and effect degree, finished leather feel is influenceed.Mountain
Sheepskin grain is thinner, is made that grain after book-binding leather is clearly smooth, but the sweat gland of goat skin is flourishing, and the secretory portion of sweat gland is all grown in breast
The intersection of head layer and lamina reticularis, abundant hair follicle occupies the sizable space of papillaris pars, causes the collagenous fibres at the position
Beam ratio is more loose, and after depilation processing, the intersection of papillaris pars and lamina reticularis forms larger space, is made after book-binding leather and easily occurs
The phenomenon that superficial layer is relaxed or grain layer is slightly separated with lamina reticularis, i.e. loose side phenomenon, influence the quality of book-binding leather.
Family's rabbit is a kind of fur raw material, available for making overcoat, collar, scarf, tippet, cap etc..It is former as fur
For material, family's rabbit is because of the pin hair reason such as longer, strength of woollen fibre is low, easily broken and fine hair is more empty, and its fur coat processed is worth relatively low.
Also there is seasonal variation in the quality of family's rabbit, there is family's rabbit of winter and spring fur coat processed to be worth, and the season of summer and autumn two, because of rabbit
Moult, hair loss and part the hair reason such as in a dormant state, the fleece of family's rabbit is very sparse, root loosely, easily comes off, makes
Fur coat value is extremely low, it is difficult to utilizes, causes substantial amounts of rabbit not to be effectively used.In recent years, with rabbit meat demand
Be continuously increased, rabbit cultivation amount is also continuously increased, and it is this kind of provide rabbit meat rabbit the cultivation phase it is often very short, the hair of rabbit with
The attachment fastness of dermatotome is low, it is also difficult to for fur coat processed, therefore generates the extremely low low inferior rabbit of a large amount of fur coats values, this family
Rabbit is difficult to use in fur coat processed, can only discard, not only waste of resource, and pollution environment.Have not yet to see using family's rabbit as raw material
The report of book-binding leather is made, if the method that book-binding leather is made by raw material of family's rabbit can be developed, and is overcome with buffalo hide, goat
Skin, pigskin are that raw material makes the problem of being difficult to eliminate position difference and loose side of book-binding leather presence, for rationally utilizing fur coat valency processed
The quality of the low family's rabbit of value, the species of abundant book-binding leather and raising book-binding leather will all produce positive effect.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide the method for making book-binding leather using rabbit leather, it is
The utilization of family's rabbit provides new approach, while carrying a kind of new book-binding leather, enriches the species of book-binding leather.
The method that the utilization rabbit leather that the present invention is provided makees book-binding leather, step is as follows：
(1) liming, depilation
A rabbit base will be obtained after family's rabbit by preservative treatment or fresh rabbit immersion, fleshing, by family's rabbit base 100
In part, 40~150 parts of water, 0.2~1.0 part of auxiliary liming agent, 0.1~1.0 part of addition rotary drum of anion surfactant, rotate and turn
0.6~1.5 part of lime is added after 20~60min of drum, 20~30min of rotary drum is rotated, keratinase ATCAZYM D are then added
0.2~1.0 part of 0.5~1.2 part, NaHS or vulcanized sodium, intermittent rotary rotary drum 3~6 times add 0.2~1.5 part of lime,
10~20min of rotary drum is rotated, 30~40min is stood, adds 50~150 parts of water, 10~30min of rotary drum is rotated, stand 12~
The body lotion in rotary drum is discharged after 15h；
(2) deliming
50~100 parts of water, 0.5~1.0 part of deliming agent are added into rotary drum, rotates and water 10~50 is added after 20~40min
Part, 0.5~2.0 part of deliming agent, rotate intermittent rotary rotary drum 2~4 times after 10~20min, are then discharged out the body lotion in rotary drum, then
Added water into rotary drum and the deliming agent washed away on a rabbit base and washing lotion is discharged into rotary drum；The temperature of body lotion in rotary drum is controlled in the step
Spend for 30~35 DEG C；
(3) pickling
0.5~1.0 part of organic acid is diluted with water 5~10 times and obtains organic acid soln, water 50~100 is added into rotary drum
Part and the organic acid soln, rotate 30~50min of rotary drum, with concentration be 3wt%~5wt% under conditions of rotary drum is rotated
Sulfuric acid regulation body lotion pH value to 2.8~3.0, then proceed to rotate 30~60min of rotary drum, then discharge body lotion in rotary drum extremely
Body lotion amount is 50~80 parts in rotary drum；
(4) tanning
5~15 parts of the aluminium tanningagent of addition into rotary drum, rotation 60~90min of rotary drum, then intermittent rotary rotary drum 3~6 times,
Rotate under conditions of rotary drum the pH value of the sodium bicarbonate aqueous solution regulation body lotion for being 5wt%~10wt% with concentration to 3.8~
4.2, stand 12~15h, by family's rabbit base is taken out from rotary drum place 36~48h, then water squeezing to family's rabbit base water content
For 40wt%~50wt%, then by family's rabbit base shaving after water squeezing；Controlled in the step temperature of body lotion in rotary drum for 30~
35℃；
(5) retanning and Finishing Process
100 parts of the family's rabbit base that will be handled by step (4), 80~100 parts of water, 5~20 parts of vegetable extract, fatting agent 1
In~2 parts of addition rotary drums, rotate and 2~5 parts of Protein Retanning Agent, 2~5 parts of syntans are added after 30~60min, rotation 30~
60min, add 2~4 parts of fatting agent, rotate 30~60min, then rotate rotary drum under conditions of with concentration be 10wt%~
The pH value of 20wt% formic acid regulation body lotion is rotated further the body lotion in 45~60min of rotary drum, discharge rotary drum to 3.8~4.0,
Added water washing man rabbit base into rotary drum, and family's rabbit base after washing is then taken out into drying to water content from rotary drum and is
16wt%~20wt%, will obtain a rabbit book-binding leather after the collated covering with paint of rabbit base of gained man；The syntans is amino
The temperature that body lotion in rotary drum is controlled in resin tanning agent or phenolic tanning agent, the step is 35~50 DEG C；
In step (1)~(5), the number is mass parts, in step (1), (2), (4), the intermittent rotary rotary drum
Operate to rotate 5~10min of rotary drum, stand 50~55min.
In the step of above method (1), add keratinase ATCAZYM D when be also added into neutral proteinase 0.1~
0.4 mass parts, the neutral proteinase is neutral proteinase AS.1398 or neutral proteinase 2709.
In the step of above method (1), also enter when second adds water into rotary drum into rotary drum hydrogen peroxidase 10 .1~
1.0 mass parts.
In the above method, the rotating speed that the rotary drum is rotated is 2~10rpm.
In the above method, the auxiliary liming agent be Da Weilimu SP, the deliming agent be Da Weilimu LAB, ammonium sulfate or
Person's sodium hydrogensulfite.
In the above method, the vegetable extract be wattle extract, myrica extract, chestnut extract, tara mimosa extract in extremely
Few one kind, the aluminium tanningagent is aluminum sulfate, ammonia-alum or aluminium triformate.
In the above method, the fatting agent is that sulfated oil, sulfited oil, sulfonation artificial oil or phosphoric acid are combined to
Oil.
In the above method, the organic acid is at least one of formic acid, acetic acid, lactic acid, citric acid.
In step (5) in the above method, acidity is added also into rotary drum when adding fatting agent into rotary drum second
The mass parts of dyestuff 0.5~3.0.The effect of addition acid dyes is to confer to the color needed for hide, the selection of specific acid dyes
Selected according to practical application request.
In the above method, the effect of the anion surfactant is to promote auxiliary liming agent in step (1) etc. to family
Permeated in rabbit base, make pelt expansion uniformly, position difference diminishes, improve graywall cleannes, can used and reach prestige billows SWA, DESAY essence WH-
T, up to anion surfactants such as prestige billows SPH.
In the above method, when adjusting the pH value of body lotion with sodium bicarbonate aqueous solution in step (4), scheme preferably is：Will
Sodium bicarbonate aqueous solution is added in rotary drum, per 15~20min of minor tick by several times, and the purpose that sodium acid carbonate is added by several times is to make aluminum tanning
Agent is slowly combined with hide, it is to avoid cross tan or the unequal phenomenon of tanning；The pH value of body lotion is adjusted in step (5) with formic acid solution
When, scheme preferably is：Formic acid is added in rotary drum by several times, per 15~20min of minor tick, the purpose that formic acid is added by several times is to make
Fatting agent, dyestuff are slowly combined with hide, make stuffing and even dyeing, it is to avoid form dyeing defect.
In the above method, after retanning completes collated process, the need for look and feel when being applied according to book-binding leather,
Cover with paint, lacquer, colour wash, etc. process and dab decorations or pigment covering with paint may be selected.
Present invention also offers a kind of family's rabbit book-binding leather made by the above method.
Compared with prior art, the invention has the advantages that：
1. the invention provides a kind of method that utilization rabbit leather makees book-binding leather, this method is by raw material of family's rabbit through leaching
Ash, depilation, deliming, pickling, tanning, retanning and Finishing Process process make book-binding leather, and this method carries for the utilization of family's rabbit
A kind of new approach has been supplied, for reasonable, the effective utilization of family's rabbit, low low inferior rabbit particularly is worth to a large amount of fur coats processed
Effective utilize of skin provides rational approach, can not only reduce a waste for rabbit resource, moreover it is possible to avoid because of low inferior rabbit
Skin discarded and the environmental pollution caused.
2. because a width for family's rabbit is smaller, position is poor also smaller, the ratio between skin depth of belly and buttocks is no more than 1:2, warp
Cross that the position that simple filling can eliminate hide is poor, the adipose gland of family's rabbit is undeveloped, chemistry is tried in tanning and in covering with paint, lacquer, colour wash, etc. process
Agent is readily permeable, does not have sweat gland in the corium of family's rabbit, is less prone to loose side problem, accordingly, with respect to existing with ox-hide, mountain
Sheepskin and pigskin are that raw material makes book-binding leather, and the method for the invention makes book-binding leather by raw material of family's rabbit, additionally it is possible to carry
The quality of high book-binding leather, experiment shows, the dermatotome of family's rabbit book-binding leather that the method for the invention makes is plentiful, grain is flat thin,
It is poor without obvious position.
3. because the width of family's rabbit is smaller, individual family's rabbit just can be made into a complete book-binding leather, cutting amount compared with
It is few, thus the manpower that the method for the invention expends in operation is less, can also reduce cutting workload.
4. the method for the invention helps method to lose hair or feathers using few sulphur enzyme, this can reduce COD, BOD in leather-making waste water5And SS contains
Amount, reduces the pressure and cost of tannery wastewater treatment, thus the method for the invention has the advantage of environmental protection.Further
Ground, with the addition of appropriate hydrogen peroxide, hydrogen peroxide can eliminate the sulfide in waste water, can moderately bleach again in the depilation later stage
Skin base, increases the whiteness of product.
5. tanning and retanning process that the method for the invention is combined using aluminium tanningagent and vegetable tanning agent, tanning effect are good
It is good, the good mouldability of vegetable leather, and hide grain consolidation are not only remained, absorption of perspiration and resistance to elevated temperatures are good, and energy
The problem of environmental pollution that alleviation chrome tanning, aldehyde tannage are brought.
6. family's rabbit book-binding leather that the present invention is provided is a kind of new book-binding leather, the dermatotome of family's rabbit book-binding leather is rich
Full, grain is flat thin, and comfortable feel is poor without obvious position, and loose side problem is not susceptible to during making and use.
Embodiment
The method that utilization rabbit leather of the present invention makees book-binding leather is described further by the following examples.
In following each embodiments, the ATCAZYM D are the trade mark of keratinase, and keratinase ATCAZYM D are purchased from method
ATC companies of state；The Da Weilimu SP, Da Weilimu LAB, up to prestige billows SWA and up to prestige billows SPH by Sichuan reach prestige high-tech stock
The production of part Co., Ltd；DESAY's essence WH-T is produced by Sichuan DeSaiEr chemical engineering Industry Co., Ltd.
Embodiment 1
There is provided the method for making book-binding leather using rabbit leather in the present embodiment, step is as follows：
(1) liming, depilation
A rabbit base will be obtained after family's rabbit immersion by preservative treatment, fleshing, by family rabbit base 100kg, water
150kg, auxiliary liming agent Da Weilimu SP 0.9kg, surfactant are added in rotary drum up to prestige billows SWA 1.0kg, rotate rotary drum
Lime 1.5kg is added after 30min, rotary drum 30min is rotated, keratinase ATCAZYM D 1.2kg, vulcanized sodium is then added
0.8kg, intermittent rotary rotary drum 3 times adds lime 0.5kg, rotates rotary drum 20min, stands 40min, adds water 150kg, turns
Dynamic 30min, stands the body lotion in discharge rotary drum after 15h.
(2) deliming
Water 100kg, deliming agent Da Weilimu LAB 1.0kg are added into rotary drum, water is added after rotating rotary drum 20min
10kg, deliming agent Da Weilimu LAB 2.0kg, rotate intermittent rotary rotary drum 3 times after rotary drum 10min, are then discharged out in rotary drum
Body lotion, then added water into rotary drum and the deliming agent washed away on a rabbit base and washing lotion is discharged into rotary drum, wash altogether twice；The step
The middle temperature for controlling body lotion in rotary drum is 30 DEG C.
(3) pickling
Formic acid 1.0kg is diluted with water 5 times, the formic acid added into rotary drum after water 100kg and foregoing dilution is rotated and turned
The pH value for the sulfuric acid regulation body lotion that drum 50min is 5wt% with concentration under conditions of rotary drum is rotated is to 2.8~2.9, Ran Houji
It is continuous to rotate rotary drum 60min, then it is 80kg to discharge body lotion in the rotary drum body lotion amount into rotary drum.
(4) tanning
Ammonia-alum 10kg is added into rotary drum, rotary drum 60min is rotated, then intermittent rotary rotary drum 3 times are rotating rotary drum
Under the conditions of concentration is added in rotary drum several times for 5wt% sodium bicarbonate aqueous solution, per minor tick 20min, each addition
No more than 5kg, the pH value of body lotion is adjusted to 4.1~4.2,12h is stood, family's rabbit base placement 48h is taken out into from rotary drum, then
Water squeezing to the water content of family's rabbit base is 40wt%~45wt%, then using shaving machine by family's rabbit base shaving after water squeezing；Should
The temperature that body lotion in rotary drum is controlled in step is 30 DEG C.
(5) retanning
The family rabbit base 100kg that will be handled by step (4), water 80kg, myrica extract 5kg, wattle extract 5kg, Asia
Sulfated oil 1kg is added in rotary drum, rotates and Protein Retanning Agent 2kg, phenol sulphur phenol resin tanning agent 2kg are added after 60min, is rotated
60min, adds sulphation neat's foot oil 2kg, rotates 30min, then by first of the concentration for 10wt% under conditions of rotary drum is rotated
Acid is added in rotary drum, per minor tick 20min several times, and each addition is no more than 3kg, adjust the pH value of body lotion to 3.8~
3.9, the body lotion in rotary drum 60min, discharge rotary drum is rotated further, add water washing man rabbit base into rotary drum, washes twice altogether,
Family's rabbit base after washing is taken out, it is 50wt%~60wt% to take horse and drip to the water content of family's rabbit base, and then vacuum is done
The dry water content to family's rabbit base is 25%~35%, then it is 16%~20% to dry naturally to the water content of family's rabbit base；Should
The temperature that body lotion in rotary drum is controlled in step is 35 DEG C.
In above steps, the operation of the intermittent rotary rotary drum is rotates rotary drum 10min, stands 50min, turn of rotary drum
Speed is 2rpm.
(6) Finishing Process
By family's rabbit base obtained by step (5) it is collated, cover with paint, lacquer, colour wash, etc. and produce book-binding leather, cover with paint, lacquer, colour wash, etc. formula and operate as follows：
Bottom：By 600g water, 400g RC-2349,400g RA-2394,200g RU-3906,100g PP-
After 19-200 and 150g FI-50 is well mixed, be sprayed on it is collated after family's rabbit base on, spray 2 times altogether, every time spraying
After complete 2s is pressed under the conditions of 90 DEG C, 8MPa.Top layer：By 200g water, 100g WT-2585,100g WT-2586,6g
After HM-183 and 10g XR-2521 is well mixed, it is sprayed on the family's rabbit base for having carried out bottom covering with paint, sprays 1 time, spray
Dried after being painted with.The chemical reagent used in the step is this tal fibre Products.
Family's rabbit book-binding leather that the present embodiment makes dermatotome is plentiful, grain is flat thin, poor without obvious position, shrinkage temperature can
Up to more than 95 DEG C.
Embodiment 2
There is provided the method for making book-binding leather using rabbit leather in the present embodiment, step is as follows：
(1) liming, depilation
A rabbit base will be obtained after family's rabbit immersion by preservative treatment, fleshing, by family rabbit base 100kg, water
100kg, auxiliary liming agent Da Weilimu SP 0.6kg, surfactant DESAY essence WH-T 0.5kg are added in rotary drum, rotate rotary drum
Lime 0.6kg is added after 30min, rotary drum 20min is rotated, keratinase ATCAZYM D 1.0kg, neutral proteinase is then added
AS.13980.1kg, NaHS 1.0kg, intermittent rotary rotary drum 5 times add lime 1.5kg, rotate rotary drum 10min, stand
30min, adds water 50kg, hydrogen peroxide 1.0kg, rotates 30min, stands the body lotion in discharge rotary drum after 12h.
(2) deliming
Water 50kg, deliming agent ammonium sulfate 2.0kg are added into rotary drum, rotates and water 50kg, deliming agent is added after rotary drum 30min
Sodium hydrogensulfite 1.0kg, rotates intermittent rotary rotary drum 2 times after rotary drum 20min, is then discharged out the body lotion in rotary drum, then to rotary drum
In add water and the deliming agent washed away on a rabbit base and washing lotion discharged into rotary drum, wash altogether twice；Controlled in the step in rotary drum
The temperature of body lotion is 30 DEG C.
(3) pickling
Formic acid 0.4kg is diluted with water 10 times, lactic acid 0.2kg is diluted with water 10 times, into rotary drum add water 50kg with
And formic acid and lactic acid after foregoing dilution, rotary drum 30min is rotated, the sulfuric acid for being 3wt% with concentration under conditions of rotary drum is rotated
The pH value of body lotion is adjusted to 2.9~3.0, then proceedes to rotate rotary drum 30min, then discharge body lotion in the rotary drum body lotion into rotary drum
Measure as 50kg.
(4) tanning
Aluminium triformate 15kg is added into rotary drum, rotary drum 90min is rotated, then intermittent rotary rotary drum 6 times are rotating rotary drum
Under conditions of concentration is added in rotary drum several times for 5wt% sodium bicarbonate aqueous solution, per minor tick 15min, add every time
Amount is no more than 5kg, adjusts the pH value of body lotion to 3.8~3.9, stands 15h, family's rabbit base is taken out into placement 36h from rotary drum, so
Water squeezing to the water content of family's rabbit base is 40wt%~45wt% afterwards, then using shaving machine by family's rabbit base shaving after water squeezing；
The temperature that body lotion in rotary drum is controlled in the step is 30 DEG C.
(5) retanning
The family rabbit base 100kg that will be handled by step (4), water 80kg, tara mimosa extract 10kg, wattle extract 5kg, sulphur
It is combined to oily 2kg to add in rotary drum, rotates and Protein Retanning Agent 2kg, amino resin tanning agent 4kg are added after 30min, rotates 60min,
Sulphation neat's foot oil 3kg, acid dyes Ha Wana palm fibre P 2kg are added, 60min is rotated, then will under conditions of rotary drum is rotated
Concentration is added in rotary drum, per minor tick 15min several times for 15wt% formic acid, and each addition is no more than 3kg, adjusts body lotion
PH value to 3.9~4.0, be rotated further 45min, the body lotion in discharge rotary drum, add water washing man rabbit base into rotary drum, altogether
Wash twice, family's rabbit base after washing is taken out, it is 50wt%~60wt% to take horse and drip to the water content of family's rabbit base, so
Afterwards paste drying to family's rabbit base water content be 25%~35%, then dry naturally to family's rabbit base water content be 16%~
20%；The temperature that body lotion in rotary drum is controlled in the step is 45 DEG C.
In above steps, the operation of the intermittent rotary rotary drum is rotates rotary drum 5min, stands 55min, turn of rotary drum
Speed is 3rpm.
(6) Finishing Process
By family's rabbit base obtained by step (5) it is collated, cover with paint, lacquer, colour wash, etc. and produce book-binding leather, cover with paint, lacquer, colour wash, etc. formula and operate as follows：
Bottom：By 800g water, 6g dyestuff water, 400g RC-7479,200g BI-1730 and 100g FI-50
After well mixed, be sprayed on it is collated after family's rabbit base on, spray 2 times altogether, after having sprayed every time under the conditions of 90 DEG C, 8MPa
Press 2s.Top layer：By 200g water, 200g WT-2585,200g WT-2586,10g HM-183,20g XR-2521 with
And after 100g LW-5344 is well mixed, be sprayed on the family's rabbit base for having carried out bottom covering with paint, spray 2 times, sprayed every time
Dry afterwards.The chemical reagent used in the step is this tal fibre Products.
Family's rabbit book-binding leather that the present embodiment makes dermatotome is plentiful, grain is flat thin, poor without obvious position, shrinkage temperature can
Up to more than 95 DEG C.
Embodiment 3
There is provided the method for making book-binding leather using rabbit leather in the present embodiment, step is as follows：
(1) liming, depilation
A rabbit base will be obtained after fresh rabbit immersion, fleshing, family rabbit base 100kg, water 40kg, auxiliary liming agent are reached into prestige
Sharp nurse SP0.2kg, surfactant are added in rotary drum up to prestige billows SPH 0.1kg, rotate and lime 0.6kg is added after rotary drum 20min,
Rotary drum 20min is rotated, keratinase ATCAZYM D 0.5kg, neutral proteinase AS.13980.2kg, vulcanized sodium is then added
0.3kg, intermittent rotary rotary drum 6 times adds lime 0.2kg, rotates rotary drum 20min, stands 40min, adds water 150kg, mistake
Hydrogen oxide 0.2kg, rotates 10min, stands the body lotion in discharge rotary drum after 15h.
(2) deliming
Water 50kg, deliming agent Da Weilimu LAB0.6kg are added into rotary drum, rotate added after rotary drum 30min water 10kg,
Deliming agent ammonium sulfate 0.5kg, rotates intermittent rotary rotary drum 4 times after rotary drum 10min, is then discharged out the body lotion in rotary drum, then to turning
Added water in drum and the deliming agent washed away on a rabbit base and washing lotion is discharged into rotary drum, washed altogether twice；Rotary drum is controlled in the step
The temperature of middle body lotion is 35 DEG C.
(3) pickling
Formic acid 0.2kg is diluted with water 8 times, acetic acid 0.3kg is diluted with water 8 times, into rotary drum add water 100kg and
Formic acid and acetic acid after foregoing dilution, rotate rotary drum 50min, and the sulfuric acid for being 5wt% with concentration under conditions of rotary drum is rotated is adjusted
The pH value of body lotion is saved to 2.9~3.0, then proceedes to rotate rotary drum 40min, then discharge body lotion in the rotary drum body lotion amount into rotary drum
For 80kg.
(4) tanning
Aluminum sulfate 5kg is added into rotary drum, rotary drum 90min is rotated, then intermittent rotary rotary drum 3 times are rotating rotary drum
Under the conditions of concentration is added in rotary drum, at interval of 15min several times for 10wt% sodium bicarbonate aqueous solution, each addition is not
More than 5kg, the pH value of body lotion is adjusted to 3.9~4.0,12h is stood, family's rabbit base is taken out into placement 48h from rotary drum, then squeezed
The water content of water to family's rabbit base is 45wt%~50wt%, then using shaving machine by family's rabbit base shaving after water squeezing；The step
The temperature that body lotion in rotary drum is controlled in rapid is 35 DEG C.
(5) retanning
The family rabbit base 100kg that will be handled by step (4), water 100kg, myrica extract 5kg, chestnut extract 15kg, phosphorus
It is acidified artificial oil 1kg to add in rotary drum, rotates and Protein Retanning Agent 4kg, phenol sulphur phenol resin tanning agent 5kg are added after 60min, rotates
30min, adds sulphation neat's foot oil 2kg, the reddish brown R 3kg of acid dyes leather, rotates 60min, is then rotating the bar of rotary drum
Concentration is added in rotary drum several times for 20wt% formic acid under part, per minor tick 20min, each addition is no more than 3kg, adjusts
The pH value of body lotion is saved to 3.9~4.0, the body lotion in rotary drum 60min, discharge rotary drum is rotated further, add water washing man into rotary drum
Rabbit base, is washed twice altogether, and family's rabbit base after washing is taken out, and it is 50wt% to take horse and drip to the water content of family's rabbit base
~60wt%, is then dried under vacuum to plus the water content of rabbit base is 25%~35%, then dries containing to family's rabbit base naturally
Water is 16%~20%；The temperature that body lotion in rotary drum is controlled in the step is 50 DEG C.
In above steps, the operation of the intermittent rotary rotary drum is rotates rotary drum 5min, stands 55min, turn of rotary drum
Speed is 10rpm.
(6) Finishing Process
Family's rabbit base obtained by step (5) according to the method Finishing Process of the step of embodiment 1 (6) is produced into a rabbit written
Leather.
Family's rabbit book-binding leather that the present embodiment makes dermatotome is plentiful, grain is flat thin, poor without obvious position, shrinkage temperature can
Up to more than 95 DEG C.
Embodiment 4
There is provided the method for making book-binding leather using rabbit leather in the present embodiment, step is as follows：
(1) liming, depilation
A rabbit base will be obtained after family's rabbit immersion by preservative treatment, fleshing, by family rabbit base 100kg, water
150kg, auxiliary liming agent Da Weilimu SP 1.0kg, surfactant are added in rotary drum up to prestige billows SWA 1.0kg, rotate rotary drum
Lime 1.2kg is added after 60min, rotary drum 30min is rotated, keratinase ATCAZYM D 0.5kg, neutral proteinase is then added
27090.4kg, vulcanized sodium 0.2kg, intermittent rotary rotary drum 3 times add lime 1.0kg, rotate rotary drum 20min, stand 40min,
Water 100kg, hydrogen peroxide 1.0kg are added, 30min is rotated, the body lotion in discharge rotary drum after 15h is stood.
(2) deliming
Water 100kg, deliming agent ammonium sulfate 1.0kg are added into rotary drum, rotates and water 20kg, deliming is added after rotary drum 40min
Agent ammonium hydrogen sulfate 2.0kg, rotates intermittent rotary rotary drum 4 times after rotary drum 10min, is then discharged out the body lotion in rotary drum, then to rotary drum
In add water and the deliming agent washed away on a rabbit base and washing lotion discharged into rotary drum, wash altogether twice；Controlled in the step in rotary drum
The temperature of body lotion is 30 DEG C.
(3) pickling
Citric acid 0.5kg is diluted with water 10 times, citric acid after water 100kg and foregoing dilution is added into rotary drum, is turned
The pH value for the sulfuric acid regulation body lotion that dynamic rotary drum 40min is 5wt% with concentration under conditions of rotary drum is rotated is then proceeded to 2.9
Rotary drum 30min is rotated, then it is 70kg to discharge body lotion in the rotary drum body lotion amount into rotary drum.
(4) tanning
Ammonia-alum 15kg is added into rotary drum, rotary drum 60min is rotated, then intermittent rotary rotary drum 4 times are rotating rotary drum
Under the conditions of concentration is added in rotary drum, at interval of 15min several times for 5wt% sodium bicarbonate aqueous solution, each addition
No more than 5kg, the pH value of body lotion is adjusted to 4.0~4.1,12h is stood, family's rabbit base placement 36h is taken out into from rotary drum, then
Water squeezing to the water content of family's rabbit base is 40wt%~45wt%, then using shaving machine by family's rabbit base shaving after water squeezing；Should
The temperature that body lotion in rotary drum is controlled in step is 35 DEG C.
(5) retanning and Finishing Process
The family rabbit base 100kg that will be handled by step (4), water 80kg, myrica extract 5kg, sulfited oil 1kg are added
In rotary drum, rotate and Protein Retanning Agent 5kg, phenol sulphur phenol resin tanning agent 5kg are added after 60min, rotate 60min, add sulphation ox
Hoof oil 4kg, the reddish brown RN 0.5kg of acid dyes leather, rotate 60min, are then by concentration under conditions of rotary drum is rotated
10wt% formic acid is added in rotary drum, per minor tick 15min several times, and each addition is no more than 3kg, adjusts the pH value of body lotion
To 3.8~3.9, the body lotion in rotary drum 60min, discharge rotary drum is rotated further, add water washing man rabbit base, Yi Gongxi into rotary drum
Wash twice, family's rabbit base after washing is taken out, it is 50wt%~60wt% to take horse and drip to the water content of family's rabbit base, then
Be dried under vacuum to plus rabbit base water content be 25%~35%, then dry naturally to family's rabbit base water content be 16%~
20%；The temperature that body lotion in rotary drum is controlled in the step is 35 DEG C.
In above steps, the operation of the intermittent rotary rotary drum is rotates rotary drum 10min, stands 50min, turn of rotary drum
Speed is 3rpm.
In above steps, the operation of intermittent rotary rotary drum is rotates rotary drum 10min, stands 50min, and the rotating speed of rotary drum is
3rpm。
(6) Finishing Process
Family's rabbit base obtained by step (5) according to the method Finishing Process of the step of embodiment 2 (6) is produced into a rabbit written
Leather.
Family's rabbit book-binding leather that the present embodiment makes dermatotome is plentiful, grain is flat thin, poor without obvious position, shrinkage temperature can
Up to more than 95 DEG C.
Claims (9)
1. a kind of method that utilization rabbit leather makees book-binding leather, it is characterised in that step is as follows：
（1）Liming, depilation
A rabbit base will be obtained after family's rabbit by preservative treatment or the immersion of fresh rabbit, fleshing, by 100 parts of family's rabbit base,
In 40 ~ 150 parts of water, 0.2 ~ 1.0 part of auxiliary liming agent, 0.1 ~ 1.0 part of addition rotary drum of anion surfactant, rotation rotary drum 20 ~
0.6 ~ 1.5 part of lime is added after 60min, 20 ~ 30min of rotary drum is rotated, keratinase ATCAZYM D 0.5 ~ 1.2 are then added
0.2 ~ 1.0 part of part, NaHS or vulcanized sodium, intermittent rotary rotary drum 3 ~ 6 times, 0.2 ~ 1.5 part of lime of addition, rotation rotary drum 10 ~
20min, stands 30 ~ 40min, adds 50 ~ 150 parts of water, rotates 10 ~ 30min of rotary drum, stands after 12 ~ 15h in discharge rotary drum
Body lotion；
（2）Deliming
50 ~ 100 parts of water, 0.5 ~ 1.0 part of deliming agent are added into rotary drum, rotates and 10 ~ 50 parts of water, deliming agent is added after 20 ~ 40min
0.5 ~ 2.0 part, intermittent rotary rotary drum 2 ~ 4 times after 10 ~ 20min are rotated, the body lotion in rotary drum are then discharged out, then add water into rotary drum
Wash away the deliming agent on a rabbit base and washing lotion is discharged into rotary drum；The temperature that body lotion in rotary drum is controlled in the step is 30 ~ 35 DEG C；
（3）Pickling
0.5 ~ 1.0 part of organic acid is diluted with water 5 ~ 10 times and obtains organic acid soln, added into rotary drum 50 ~ 100 parts of water and
The organic acid soln, rotates 30 ~ 50min of rotary drum, is adjusted under conditions of rotary drum is rotated with the sulfuric acid that concentration is the wt% of 3 wt% ~ 5
The pH value of body lotion is saved to 2.8 ~ 3.0, then proceedes to rotate 30 ~ 60min of rotary drum, then discharge body lotion in the rotary drum body lotion into rotary drum
Measure as 50 ~ 80 parts；
（4）Tanning
5 ~ 15 parts of aluminium tanningagent is added into rotary drum, 60 ~ 90min of rotary drum is rotated, then intermittent rotary rotary drum 3 ~ 6 times turn rotating
With the pH value for the sodium bicarbonate aqueous solution regulation body lotion that concentration is the wt% of 5 wt% ~ 10 to 3.8 ~ 4.2 under conditions of drum, stand 12 ~
15h, 36 ~ 48h of placement is taken out by family's rabbit base from rotary drum, and then water squeezing to the water content of family's rabbit base is 40 wt% ~ 50
Wt%, then by family's rabbit base shaving after water squeezing；The temperature that body lotion in rotary drum is controlled in the step is 30 ~ 35 DEG C；
（5）Retanning and Finishing Process
Step will be passed through（4）100 parts of family's rabbit base of processing, 80 ~ 100 parts of water, 5 ~ 20 parts of vegetable extract, 1 ~ 2 part of fatting agent add
Enter in rotary drum, rotate and 2 ~ 5 parts of Protein Retanning Agent, 2 ~ 5 parts of syntans are added after 30 ~ 60min, rotate 30 ~ 60min, add and add
2 ~ 4 parts of fat agent, rotates 30 ~ 60min, is then adjusted under conditions of rotary drum is rotated with the formic acid that concentration is the wt% of 10 wt% ~ 20
The pH value of body lotion is rotated further the body lotion in 45 ~ 60min of rotary drum, discharge rotary drum to 3.8 ~ 4.0, and add water washing man into rotary drum
Rabbit base, then takes out family's rabbit base after washing that to dry to water content be the wt% of 16 wt% ~ 20 from rotary drum, by gained man
A rabbit book-binding leather is obtained after the collated covering with paint of rabbit base；The syntans is amino resin tanning agent or phenolic tanning agent, is somebody's turn to do
The temperature that body lotion in rotary drum is controlled in step is 35 ~ 50 DEG C；
Step（1）~（5）In, the number is mass parts, and the rotating speed that rotary drum is rotated is 2 ~ 10rpm, step（1）、（2）、（4）In,
The operation of the intermittent rotary rotary drum is rotation rotary drum 5 ~ 10 min, stands 50 ~ 55min.
2. make the method for book-binding leather using rabbit leather according to claim 1, it is characterised in that step（1）Adding angle egg
The mass parts of neutral proteinase 0.1 ~ 0.4 are also added into during white enzyme ATCAZYM D, the neutral proteinase is neutral proteinase
AS.1398。
3. the method that utilization rabbit leather according to claim 1 or claim 2 makees book-binding leather, it is characterised in that step（1）Second
It is secondary also to enter the mass parts of hydrogen peroxidase 10 .1 ~ 1.0 when being added water into rotary drum into rotary drum.
4. the method that utilization rabbit leather according to claim 1 or claim 2 makees book-binding leather, it is characterised in that the auxiliary liming agent is
Da Weilimu SP, the deliming agent is ammonium sulfate or sodium hydrogensulfite.
5. the method that utilization rabbit leather according to claim 1 or claim 2 makees book-binding leather, it is characterised in that the vegetable extract is
At least one of wattle extract, myrica extract, chestnut extract, tara mimosa extract, the aluminium tanningagent be aluminum sulfate, ammonia-alum or
Person's aluminium triformate.
6. the method that utilization rabbit leather according to claim 1 or claim 2 makees book-binding leather, it is characterised in that the fatting agent is sulphur
Acidification oil, sulfited oil, sulfonation artificial oil or phosphorylation artificial oil.
7. the method that utilization rabbit leather according to claim 1 or claim 2 makees book-binding leather, it is characterised in that the organic acid is first
At least one of acid, acetic acid, lactic acid, citric acid.
8. the method that utilization rabbit leather according to claim 1 or claim 2 makees book-binding leather, it is characterised in that step（5）Second
It is secondary that the mass parts of acid dyes 0.5 ~ 3.0 are added also into rotary drum during addition fatting agent into rotary drum.
9. family's rabbit book-binding leather that any claim methods described makes in claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510926723.9A CN105543422B (en) | 2015-12-14 | 2015-12-14 | Make the method for book-binding leather and its book-binding leather of making using rabbit leather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510926723.9A CN105543422B (en) | 2015-12-14 | 2015-12-14 | Make the method for book-binding leather and its book-binding leather of making using rabbit leather |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105543422A CN105543422A (en) | 2016-05-04 |
| CN105543422B true CN105543422B (en) | 2017-10-03 |
Family
ID=55822979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510926723.9A Expired - Fee Related CN105543422B (en) | 2015-12-14 | 2015-12-14 | Make the method for book-binding leather and its book-binding leather of making using rabbit leather |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105543422B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11540994B2 (en) * | 2017-10-06 | 2023-01-03 | Meat & Livestock Australia Ltd | Removal of biological deposits |
| CN109593897B (en) * | 2018-11-28 | 2021-05-04 | 齐鲁工业大学 | Method for modifying amino resin tanning agent by using diamine and tetramethylol quaternary phosphonium salt |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1526288A (en) * | 2003-09-24 | 2004-09-08 | 四川大学 | Depilating composition for less thiolase process and the piling depilation method therewith |
| CN104789715A (en) * | 2015-04-20 | 2015-07-22 | 嘉兴学院 | Salt-free, pickling-free, short-process and little-chromium tanning method |
-
2015
- 2015-12-14 CN CN201510926723.9A patent/CN105543422B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1526288A (en) * | 2003-09-24 | 2004-09-08 | 四川大学 | Depilating composition for less thiolase process and the piling depilation method therewith |
| CN104789715A (en) * | 2015-04-20 | 2015-07-22 | 嘉兴学院 | Salt-free, pickling-free, short-process and little-chromium tanning method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105543422A (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103290149B (en) | Process for making goat upper leather | |
| CN103290148B (en) | Process for making goat denim line simulated upper leather | |
| CN103589812B (en) | A kind of preparation method of oily wax water dye soft leather | |
| CN102586508B (en) | Production method of leather for cow leather clothes | |
| CN104789714B (en) | A kind of Sheep Skin Upper Leather manufacture craft | |
| CN108977593A (en) | A kind of production technology improving the flat fineness of grain side of leather | |
| CN104962667A (en) | Quick producing process for pure vegetable tanning cattle leather | |
| CN109628656A (en) | It is a kind of to steep the soft production technology for falling line leather | |
| CN103805721B (en) | A kind of preparation method of half vegetable tanning embossing soft leather | |
| CN109811091B (en) | Production method of shrunk grain leather | |
| CN108165678A (en) | A kind of production method of suede | |
| CN105543422B (en) | Make the method for book-binding leather and its book-binding leather of making using rabbit leather | |
| CN102943138A (en) | Manufacturing method of highly tear resistant ultrathin boot leather | |
| CN104109723B (en) | A kind of preparation method of both fur and leather skin of formaldehydeless chrome-free tanning | |
| CN107164584A (en) | A kind of water-fastness ox-hide clothing leather processing technology | |
| JP2009286993A (en) | Animal skin tanning method using no heavy metal such as chromium or aldehyde tanning agent | |
| CN105316437A (en) | Production process of environment-friendly cattle hide mattress | |
| CN1213151C (en) | Tanning method for fish skin and after finishing method for fish skin leather | |
| CN107326120A (en) | A kind of water-fastness ox-hide clothing leather processing technology | |
| CN102220438A (en) | Environment-friendly production method for leather dual-purpose fur | |
| CN109097510B (en) | Method for manufacturing mercerized leather by one-step dyeing | |
| CN107385124B (en) | A kind of method that organic phosphine and chitin modified keratin prepare Techniques of Protein Filling Agents | |
| CN106222327A (en) | A kind of wholegrain face is without being coated with the preparation method of Environmental-protection shoes upper leather | |
| CN108315511B (en) | Coating agent for fetal calf, comprehensive coating process and blue wet skin treatment process | |
| CN108504796B (en) | Composite grain shrinking agent for cowhide, comprehensive grain shrinking process and wet blue leather treatment process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171003 Termination date: 20201214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |