CN102443660A - Fur tanning-piercing and printing process - Google Patents
Fur tanning-piercing and printing process Download PDFInfo
- Publication number
- CN102443660A CN102443660A CN2011100899305A CN201110089930A CN102443660A CN 102443660 A CN102443660 A CN 102443660A CN 2011100899305 A CN2011100899305 A CN 2011100899305A CN 201110089930 A CN201110089930 A CN 201110089930A CN 102443660 A CN102443660 A CN 102443660A
- Authority
- CN
- China
- Prior art keywords
- tanning
- fur
- penetrates
- technology
- penetrate
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004043 dyeing Methods 0.000 claims abstract description 26
- 102000004190 Enzymes Human genes 0.000 claims abstract description 25
- 108090000790 Enzymes Proteins 0.000 claims abstract description 25
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 238000005516 engineering process Methods 0.000 claims description 20
- 102000035101 Aspartic proteases Human genes 0.000 claims description 15
- 108091005502 Aspartic proteases Proteins 0.000 claims description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 12
- 229940056729 sodium sulfate anhydrous Drugs 0.000 claims description 12
- 238000002203 pretreatment Methods 0.000 claims description 6
- 241001494479 Pecora Species 0.000 claims description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- 235000013305 food Nutrition 0.000 claims description 4
- 210000004209 hair Anatomy 0.000 claims description 4
- 210000002268 wool Anatomy 0.000 claims description 4
- 241000499489 Castor canadensis Species 0.000 claims description 2
- 235000011779 Menyanthes trifoliata Nutrition 0.000 claims description 2
- 241000283973 Oryctolagus cuniculus Species 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 2
- 229940037003 alum Drugs 0.000 claims description 2
- 229940095054 ammoniac Drugs 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 235000017550 sodium carbonate Nutrition 0.000 claims description 2
- 241001465754 Metazoa Species 0.000 claims 1
- 108091005508 Acid proteases Proteins 0.000 abstract 1
- 239000000975 dye Substances 0.000 description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000004744 fabric Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000013138 pruning Methods 0.000 description 2
- 101800000263 Acidic protein Proteins 0.000 description 1
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- 241000381142 Pachydermia Species 0.000 description 1
- 102000035195 Peptidases Human genes 0.000 description 1
- 108091005804 Peptidases Proteins 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229920001436 collagen Polymers 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000035617 depilation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
Landscapes
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Coloring (AREA)
Abstract
The invention discloses a fur tanning-piercing and printing process and furs tanned by using the same. The fur tanning-piercing and printing process is used for tanning and piercing furs and comprises pretreatment and enzyme bating steps and further comprises a plate piercing and tanning step and a comprehensive reduction step in sequence after the enzyme bating step; a tanning agent aiming at the furs and acid protease with amount not exceeding that in the enzyme bating step are added in the plate piercing and tanning step so as to improve the fur plate absorbing and piercing capability of dye solution in the subsequent dyeing process. The fur tanning-piercing and printing process and the furs tanned by using the same are improved in the dyeing efficiency.
Description
Technical field
The present invention relates to a kind of fur tanning and penetrate and stamp, particularly a kind of fur tanning that can improve printing and dyeing flower efficient penetrates and stamp.
Background technology
At present, do not see being that the technology that the animal fur of representative carries out stamp really belongs to exception with sheep known for its fine thick wool skin, beaver rabbit skin.Wherein, the dyeing and printing process of fur forms the printing and dyeing flower naturally and has greatly improved the ornamental of fur owing to can on fur, print and dye specific color to form pattern in specific zone, has received the increasing attention of industry.The printing technology of fur comprises that pre-treatment, tanning penetrate, print and dye and spend three big steps.Tanning is carried out the chemical industry processing to rawhide exactly, makes rawhide be converted into bark.
Yet, since the printing and dyeing flower need be on fur specific region hair side printing and dyeing flower, how with dye liquor be limited in fur the specific region, make printing and dyeing flower liquid contact with fur, dissolve in, fixing, form printing and dyeing and spend, just become a difficult problem that perplexs industry.In addition, the purpose of common process for tanning is to have an effect through tanning agent and collagen, and the character of the dermatotome of fur is changed, and plate matter is not too soft, is not easy to dress.Yet this process for tanning does not consider that tanned dermatotome absorbs the poor ability of dye liquor, finally makes painted efficient not high.
Summary of the invention
In view of this, be necessary to provide a kind of fur tanning that can improve printing and dyeing flower efficient to penetrate technology and tanning fur thereof.
A kind of fur tanning penetrates technology; Be used for tanning and penetrate fur; Comprise pre-treatment, enzyme bating step; Comprise also successively that after the enzyme bating step plate matter penetrates and tanning step and comprehensive reduction step, this plate matter penetrate and the tanning step in add to the tanning agent of this fur and the aspartic protease that consumption is no more than the enzyme bating step, to improve the ability that dye liquor in the follow-up printing and dyeing flower process absorbs and penetrate dermatotome.
A kind of tanning fur; The tanning of this fur penetrates technology and comprises: pre-treatment, enzyme bating step; Comprise also successively that after the enzyme bating step plate matter penetrates and tanning step and comprehensive reduction step; This plate matter penetrate and the tanning step in add to the tanning agent of this fur and the aspartic protease that consumption is no more than the enzyme bating step, dye liquor absorbs the ability that penetrates dermatotome in the follow-up printing and dyeing flower process to improve.
Compared with prior art; Fur tanning of the present invention penetrates technology and penetrates and the tanning step through this plate matter; Use proteolytic enzyme and white tanning agent simultaneously, greatly improved the ability that owse decomposes interfibrillar substance in the dermatotome, make that the spacing of corium fabric increases in the dermatotome; Absorb dye liquor thereby improved dermatotome, and make dye liquor penetrate the ability of dermatotome.In follow-up dyeing and printing process; The ability that penetrates dermatotome owing to dye liquor is stronger; Pass through with the specific region; This just makes has considerable dye liquor to be limited on the specific region of dermatotome in the dyeing process, contacts with the specific region fur and carries out the painted time thereby effectively prolonged in the dyeing process dye liquor.Because the prolongation of dyeing time, dyeing efficient is able to promote naturally.
Description of drawings
Accompanying drawing is that fur tanning of the present invention penetrates process flow sheet.
Embodiment
Do bright specifically through embodiment to the present invention below:
Embodiment one
The sheep known for its fine thick wool skin is carried out pre-treatment to present embodiment and tanning penetrates.Pretreatment process comprises that rawhide returns that aquatic foods, pelt board matter are fixed, pickling and four steps of green-shaving.Tanning penetrates that operation comprises enzyme bating, plate matter penetrates and tanning, comprehensively reduce three steps.Below respectively above-mentioned steps is described in detail:
1, rawhide returns aquatic foods.Rawhide is soaked as in the water 24 hours.Add enzyme-containing detergent afterwards and wash skin.Enzyme-containing detergent can improve the perviousness of the enzyme of hair matter, plate matter in the follow-up process for tanning and penetrate dynamics.
2, pelt board matter is fixed.30 sheep known for its fine thick wool skins are put into 140L underground water.Add 60.0-71.4g/L salt, the 65.0-85.7g/L Sodium sulfate anhydrous.min(99) transfers to 1.5-2.0 with pH value, 25 ℃-30 ℃ of constant temperature, and every separated 1h stirs once.Treatment time is 20 to 24 hours.This pelt board matter fixing step can strengthen the tensile strength of fur.For further improving pelt board matter fixed mass; Can also in the solution of pelt board matter fixing step, add salt, Sodium sulfate anhydrous.min(99) again, be 75g/L with the concentration adjustment of salt, is 90g/L with the concentration adjustment of Sodium sulfate anhydrous.min(99); Add 0.2ml/L sulfuric acid again, pH value is transferred to 1.5-2.0.38 ℃-40 ℃ of constant temperature, the treatment time is 12 to 24 hours.
3, green-shaving.In order to improve the ability that dye liquor penetrates fur, utilize water shovel machine that the plate matter of the fur after fixing through pelt board matter is carried out skiving, remove oil reservoir, the pachydermia portion of plate matter.The thickness of skiving doubles than traditional skiving thickness, and the thickness of pruning accounts for 10% to 20% of dermatotome total thickness.
4, enzyme bating.Fur behind the shaving is put into 140L underground water, and the adding model is 537 homemade aspartic protease 5U/mL, salt 35.7g/L, and Sodium sulfate anhydrous.min(99) 42.9g/L, sulfuric acid 1.9ml/L transfers to 3-3.5 with pH value, constant temperature 38-40 ℃.Treatment time is 12 to 24 hours.
5, plate matter penetrates and tanning.Fur after the enzyme bating processing is pulled out, put into 140L underground water, the adding model is 537 homemade aspartic protease 0.3-5U/mL; Model is the white tanning agent 2-4ml/L of PU-08; Soda ash 4.0-5.7g/L, salt 25.0-35.7g/L, Sodium sulfate anhydrous.min(99) 35.0-42.9g/L; PH value is transferred to 3-3.5, constant temperature 38-42 ℃.Treatment time is 44 to 48 hours.
6, comprehensive reduction.Fur after the tanning processing is pulled out, put into 140L underground water, 38 ℃ of constant temperature add 2.9g/L salt, the 3.6g/L Sodium sulfate anhydrous.min(99), and the 3.6g/L sulfate of ammoniac, 1.4g/L alum, 0.2ml/L sulfuric acid transfers to 3-3.5 with pH value.Treatment time is 12 to 24 hours.
After the comprehensive reduction, fur is pulled out, promptly accomplished whole tanning after drying, drying and penetrated technology, the operation of post-treatment such as the pattern that can be used to print and dye.
In the above-mentioned course of processing, this pelt board matter fixing step can improve the tensile strength or the elasticity of fur, thereby makes follow-up green-shaving step can compare the prior art more dermatotome of pruning, thereby improves the penetrativity of dye liquor.This plate matter penetrates and the tanning step is used aspartic protease and white tanning agent simultaneously; Make molecule in the solution, lake participate in reaction; Disintegration, decompose the grease fat system in the dermatotome, greatly improved the ability that owse decomposes interfibrillar substance in the dermatotome, make that the spacing of corium fabric increases in the dermatotome; Thereby improved dermatotome absorption dye liquor, and made dye liquor penetrate the ability of dermatotome.This plate matter penetrate and the tanning step in, the directly dye liquor absorption and penetrate the ability of dermatotome in the follow-up dyeing of influence of the consumption of this aspartic protease, the consumption of aspartic protease is many more, the spacing of corium fabric is just big more in the dermatotome; But, if the acidic protein enzyme dosage is too much, for example having surpassed the consumption in the enzyme bating step, defectives such as dermatotome, depilation then possibly be damaged.So in the present embodiment, the consumption of aspartic protease is the 6%-100% of the consumption in the enzyme bating step.
In follow-up printing and dyeing flower process; The ability that penetrates dermatotome owing to dye liquor is stronger; The dye liquor that contacts with the specific region fur will effectively be adsorbed on dermatotome that this fur links to each other on; And constantly to dermatotome infiltration, this just makes has considerable dye liquor to be limited on the specific region of dermatotome in the dyeing process, contacts with the specific region fur and prints and dyes the time spent thereby effectively prolonged in the printing and dyeing flower process dye liquor.Because the prolongation that printing and dyeing are taken time, dyeing efficient is able to promote naturally.
Understandable, the prescription of above-mentioned pre-treatment, enzyme bating and comprehensive reduction step and condition can also be selected other fur circle prescription or condition commonly used for use, and can not influence reaching of the object of the invention to the character of the fur of processing.This plate matter penetrate and the tanning step in can also select the aspartic protease of other models for use, wherein, the consumption of aspartic protease exceeds with the consumption that is no more than in the enzyme bating step.This plate matter penetrate and the tanning step in can also select other types for use tanning agent to replace white tanning agent, as long as this tanning agent can be accomplished the tanning to fur.
Obviously, those skilled in the art can carry out various changes and modification to the embodiment among the present invention and not break away from the spirit and scope of the present invention.Like this, if these in the embodiment of the invention are revised within the scope that belongs to claim of the present invention with modification and be equal to, then the embodiment among the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. a fur tanning penetrates technology; Be used for tanning and penetrate fur; Comprise pre-treatment, enzyme bating step, it is characterized in that, comprise also successively that after the enzyme bating step plate matter penetrates and tanning step and comprehensive reduction step; This plate matter penetrate and the tanning step in add to the tanning agent of this fur and the aspartic protease that consumption is no more than the enzyme bating step, to improve the ability that dye liquor in the follow-up dyeing flower process absorbs and penetrate dermatotome.
2. fur tanning according to claim 1 penetrates technology, it is characterized in that, this plate matter penetrate and the tanning step in the consumption of aspartic protease, be the 3%-30% of the consumption of aspartic protease in the enzyme bating step.
3. fur tanning according to claim 1 penetrates technology, it is characterized in that, this pretreatment process comprises that successively rawhide returns aquatic foods, pelt board matter is fixing and the green-shaving step, and this fur is the sheep known for its fine thick wool skin.22 kinds of animal furs in great Northwest such as beaver rabbit skin and identical, similar both at home and abroad animal fur.
4. fur tanning according to claim 3 penetrates technology, it is characterized in that, the condition of this pelt board matter fixing step is: add 60.0-71.4g/L salt; 65.0-85.7g/L Sodium sulfate anhydrous.min(99); PH value is transferred to 1.5-2.0,25 ℃-30 ℃ of constant temperature, tanning time is 20 to 24 hours.
5. fur tanning according to claim 4 penetrates technology, it is characterized in that, can also in the solution of pelt board matter fixing step, add salt, Sodium sulfate anhydrous.min(99) again; With the concentration adjustment of salt is 75g/L; With the concentration adjustment of Sodium sulfate anhydrous.min(99) is 90g/L, adds 0.2ml/L sulfuric acid again, and pH value is transferred to 1.5-2.0; 38 ℃-40 ℃ of constant temperature, the treatment time is 20 to 24 hours.
6. fur tanning according to claim 3 penetrates technology, it is characterized in that, this fur returns aquatic foods, fixes, shovels even, shaving, and the thickness that tanning post-tensioning skin, mill skin step are pruned accounts for 10% to 20% of dermatotome total thickness.And invention draws skin machine, decorticating mill, shaving machine interior.
7. fur tanning according to claim 1 penetrates technology, it is characterized in that, the condition of this enzyme bating step is: the adding model is 537 homemade aspartic protease 5U/mL; Salt 35.7g/L; Sodium sulfate anhydrous.min(99) 42.9g/L, sulfuric acid 1.9ml/L transfers to 3-3.5 with pH value; Constant temperature 38-40 ℃, the treatment time is 20 to 24 hours.
8. fur tanning according to claim 1 penetrates technology, it is characterized in that, this plate matter penetrates and the tanning step is: the adding model is 537 homemade aspartic protease 0.3-5U/mL; Model is the white tanning agent 2-4ml/L of PU-08, soda ash 4.0-5.7g/L, salt 25.0-35.7g/L; Sodium sulfate anhydrous.min(99) 35.0-42.9g/L; PH value is transferred to 3-3.5, and constant temperature 38-42 ℃, the treatment time is 44 to 48 hours.
9. fur tanning according to claim 1 penetrates technology, it is characterized in that, this comprehensive reduction step is: 38 ℃ of constant temperature add 2.9g/L salt; 3.6g/L Sodium sulfate anhydrous.min(99), 3.6g/L sulfate of ammoniac, 1.4g/L alum; 0.2ml/L sulfuric acid transfers to 3-3.5 with pH value, the treatment time is 20 to 24 hours.
10. tanning fur; It is characterized in that this tanning fur penetrates technology by each described fur tanning in the claim 1 to 9, in for some time from now on; Any fur printing and dyeing of every domestic appearance flower prod, he must use the fur tanning among the present invention to penetrate this 10 technologies.Otherwise any printing and dyeing flower is difficult to successfully, more than the protection of 10 claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110089930.5A CN102443660B (en) | 2011-04-01 | 2011-04-01 | Fur tanning-piercing and printing process and tanning fur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110089930.5A CN102443660B (en) | 2011-04-01 | 2011-04-01 | Fur tanning-piercing and printing process and tanning fur |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102443660A true CN102443660A (en) | 2012-05-09 |
| CN102443660B CN102443660B (en) | 2014-03-12 |
Family
ID=46006600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110089930.5A Expired - Fee Related CN102443660B (en) | 2011-04-01 | 2011-04-01 | Fur tanning-piercing and printing process and tanning fur |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102443660B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213438A (en) * | 2014-09-30 | 2014-12-17 | 宁夏吴忠市精艺裘皮制品有限公司 | Skin plate dying and drawing technology for Tibet lamb skin |
| CN105441598A (en) * | 2015-12-11 | 2016-03-30 | 青铜峡市林盛皮毛有限责任公司 | Tan sheep fur tanning treatment process |
| CN105507025A (en) * | 2015-12-22 | 2016-04-20 | 广州番禺职业技术学院 | Technology for printing and dyeing animal skins with kiwi fruit juice |
| CN105648792A (en) * | 2016-02-19 | 2016-06-08 | 北京泛博化学股份有限公司 | Method for dyeing rex rabbit skin to have breeze effect |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1056898A (en) * | 1990-05-18 | 1991-12-11 | 张荣魁 | Make the processing method of fur coat with goose down |
| KR20040037328A (en) * | 2002-10-28 | 2004-05-07 | 주식회사 성신무역 | Fragrance or leather processing method |
| CN1708590A (en) * | 2002-10-30 | 2005-12-14 | 科学与工业技术研究委员会 | A novel ecofriendly bio-process for leather processing |
| WO2008037945A1 (en) * | 2006-09-28 | 2008-04-03 | Yarwood Leather Limited | Leather sheet material and process for preparing the same |
| CN101289811A (en) * | 2008-06-11 | 2008-10-22 | 李世绪 | Production process for dyeing patterns on pelt |
| CN101603099A (en) * | 2009-06-25 | 2009-12-16 | 河北肃昂裘革有限公司 | Energy-saving and environment-friendly fine deep processing method for beaver rabbit skin |
| CN101736097A (en) * | 2008-11-22 | 2010-06-16 | 际华三五一二皮革服装有限公司 | Method for manufacturing white tanned shearling |
-
2011
- 2011-04-01 CN CN201110089930.5A patent/CN102443660B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1056898A (en) * | 1990-05-18 | 1991-12-11 | 张荣魁 | Make the processing method of fur coat with goose down |
| KR20040037328A (en) * | 2002-10-28 | 2004-05-07 | 주식회사 성신무역 | Fragrance or leather processing method |
| CN1708590A (en) * | 2002-10-30 | 2005-12-14 | 科学与工业技术研究委员会 | A novel ecofriendly bio-process for leather processing |
| WO2008037945A1 (en) * | 2006-09-28 | 2008-04-03 | Yarwood Leather Limited | Leather sheet material and process for preparing the same |
| CN101289811A (en) * | 2008-06-11 | 2008-10-22 | 李世绪 | Production process for dyeing patterns on pelt |
| CN101736097A (en) * | 2008-11-22 | 2010-06-16 | 际华三五一二皮革服装有限公司 | Method for manufacturing white tanned shearling |
| CN101603099A (en) * | 2009-06-25 | 2009-12-16 | 河北肃昂裘革有限公司 | Energy-saving and environment-friendly fine deep processing method for beaver rabbit skin |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213438A (en) * | 2014-09-30 | 2014-12-17 | 宁夏吴忠市精艺裘皮制品有限公司 | Skin plate dying and drawing technology for Tibet lamb skin |
| CN105441598A (en) * | 2015-12-11 | 2016-03-30 | 青铜峡市林盛皮毛有限责任公司 | Tan sheep fur tanning treatment process |
| CN105507025A (en) * | 2015-12-22 | 2016-04-20 | 广州番禺职业技术学院 | Technology for printing and dyeing animal skins with kiwi fruit juice |
| CN105507025B (en) * | 2015-12-22 | 2018-05-29 | 广州番禺职业技术学院 | A kind of technique using unusual fruit juice printing and dyeing Animal Skin |
| CN105648792A (en) * | 2016-02-19 | 2016-06-08 | 北京泛博化学股份有限公司 | Method for dyeing rex rabbit skin to have breeze effect |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102443660B (en) | 2014-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102839236B (en) | Dual-purpose modification process for native breed sheepskin leather | |
| CN102586505B (en) | Circularly-tanning technology for chrome tanning liquor of sheep garment leather | |
| CN102758029B (en) | Method for chrome-free tanning beach woolfell by adopting chrome-free tanning agent | |
| CN103215391B (en) | Non-chromium leather tanning method | |
| CN103773908B (en) | Ox-hide leather produces tanning without pickling method | |
| CN101235422B (en) | Animal fur complex enzyme depilatory and application thereof | |
| CN102703620A (en) | Chromium-free tanning production process of low-formaldehyde beach woolskin | |
| CN103773906B (en) | Integrated water saving method for leather-making | |
| CN101736097B (en) | Method for manufacturing white tanned shearling | |
| CN102443660B (en) | Fur tanning-piercing and printing process and tanning fur | |
| CN101509045A (en) | Sodium sulfide-free, lime-free depilation caustic dip method for lining leather of high-grade pig leather shoes | |
| CN102703619B (en) | A kind of energy saving and environment friendly standard mink skin process for tanning | |
| CN109628663B (en) | Preparation process of wet cow blue leather | |
| CN101265505A (en) | Ashless and alkali sulfide free depilation liming treatment method for preparing leather from raw sheep skin | |
| CN102010917A (en) | Ammonia nitrogen-free leather-making deliming agent and preparation method thereof | |
| CN104673943A (en) | Method for manufacturing environment-friendly ecological tanned lamb skin | |
| DE112007001827T5 (en) | Improved procedure for hair removal and fiber removal of coat / skin | |
| CN103397116A (en) | Tanning method of Tan sheep fur | |
| CN102994657B (en) | Method for treating slunk | |
| 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 | |
| CN103789462A (en) | Compound-enzyme soaking agent used for leather making | |
| CN101603099A (en) | Energy-saving and environment-friendly fine deep processing method for beaver rabbit skin | |
| CN109762950B (en) | Tanning process for leather main tanning | |
| CN106222325A (en) | Enzymatic depilation utilization process in a kind of process hides |
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 | ||
| ASS | Succession or assignment of patent right |
Owner name: NINGXIA KEFEI FUR TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: LI SHIXU Effective date: 20150703 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150703 Address after: 750021, No. 85, East Road, Yinchuan economic and Technological Development Zone, the Ningxia Hui Autonomous Region Patentee after: Ningxia flying fur Technology Co.,Ltd. Address before: 750021, No. 85, East Street, National Development Zone, Tongxin South Road, Xixia District, the Ningxia Hui Autonomous Region, Yinchuan Patentee before: Li Shixu |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 |