CN104357592B - A kind of preparation method of fire-retardant goat glove leather - Google Patents
A kind of preparation method of fire-retardant goat glove leather Download PDFInfo
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- CN104357592B CN104357592B CN201410647881.6A CN201410647881A CN104357592B CN 104357592 B CN104357592 B CN 104357592B CN 201410647881 A CN201410647881 A CN 201410647881A CN 104357592 B CN104357592 B CN 104357592B
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
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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
- C14C1/00—Chemical treatment prior to tanning
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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
- C14C11/00—Surface finishing of leather
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/04—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
- 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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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/32—Material containing basic nitrogen containing amide groups leather skins
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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)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
A kind of preparation method of fire-retardant goat glove leather, with the goat wet blue after the shaving that prior art common process processes as raw material, be weighed, backwater, chrome retanned, neutralize, fill stuffing with top dye, goat glove leather technique carries out Final finishing and covering with paint the most routinely, it is characterised in that: chrome retanned, neutralize and fill in stuffing operation and be separately added into fire retardant；In the top finishing in the stage of covering with paint, add flame retardant materials spray.The goat glove leather that the present invention produces, through test of many times contrast test, utilizes vertical combustion test contact naked light not burn, has fabulous fire resistance, be the preferable cladding making functional goat glove leather.The present invention can be greatly enhanced the leather burning-point when being heated and burn, thus it is flammable to reduce leather.Guarantee the security in fire incident of the goat glove leather, be operated in scene of fire for People's Armed Police's fire fighters and more preferable safeguard measure is provided.
Description
Technical field
The present invention relates to the preparation method of leather and fur products, especially relate to the preparation method of a kind of fire-retardant goat glove leather.
Background technology
In leather industry, along with the development people of internationalizationof of market are more and more higher to the Functional Requirement of leather substance,
Consumer not only focuses on the presentation quality of leather products, as frivolous soft, silk-like handle, high intensity leather products are deeply by the green grass or young crops of consumer
Look at and pay close attention to, and this product the most successfully represents in leather market.Fire is often hurried to for People's Armed Police's fire fighters
Scene, naked light environment to be contacted, having the goat skin gloves of anti-flaming function is their necessary extraordinary labour protection product.
Fire-retardant goat glove leather, in line with the principle serviced for army, is defined as our development direction and target by our company technical staff.
Summary of the invention
It is an object of the invention to provide the preparation method of a kind of fire-retardant goat glove leather；The fire-retardant goat that the method makes
Glove leather has significant anti-flaming function.
The purpose of the present invention is achieved through the following technical solutions: the preparation method of a kind of fire-retardant goat glove leather, to pass through
Goat wet blue after the shaving that prior art common process processes is raw material, is weighed, backwater, chrome retanned, neutralizes, fills and add
Fat and top dye, goat glove leather technique carries out Final finishing and covering with paint the most routinely, it is characterised in that: chrome retanned, neutralize and fill out
Fill in stuffing operation and be separately added into fire retardant；In the top finishing in the stage of covering with paint, add flame retardant materials spray, concrete work
Skill step is as follows:
(1) weigh: weigh the goat wet blue after shaving, as subsequent handling wet process segment water and use leather material
Mass percent foundation；
(2) backwater: be initially charged the water of 43～45 DEG C of 150% in rotary drum, adds wetting agent SAF0.2%～0.3%, oxalic acid
1.0%～1.2%, rotate 10 minutes；Then hypodermis, rotates 60 minutes, discharge opeing；
(3) chrome retanned: the water of 38～40 DEG C of addition 100%, adds leather black dyestuff 1.5%, rotates 15 minutes；Then add
Enter the soft mild fatting agent GLH of 2.0%, rotate 30 minutes；Add 1.0% soft type acrylic acid double tanning agent PAC, rotate 40 points
Clock；Add the fire retardant of 2%, rotate 20 minutes；Adding the formic acid that 0.5% mass concentration is 85%, rotate 20 minutes, regulation PH is
3.4；Add chromium powder that 6% basicity is 33,2% containing chrome tanning agent HN, rotate 60 minutes；Add the fatty aldehyde PF of 2%, rotate 60 points
Clock；Add sodium formate 1.5%, masking agent Yi Banna DC1.0%, rotate 20 minutes；Add the sodium bicarbonate of 0.5%～0.6%, rotate 60
Minute, survey PH4.0；Stop drum overnight；
(4) neutralize: add 38 DEG C～the water of 40 DEG C, the sodium formate of addition 2% of 200% after changing liquid, rotate 20 minutes, add
The sodium bicarbonate of 1.5%, rotate 40 minutes, add the tear-proof fatting agent OSL of 1% after surveying PH5.8～6.0, rotate 40 minutes, add
The fire retardant of 2%, rotate 20 minutes after discharge opeing washing；
(5) fill stuffing: the water of 36～38 DEG C of addition 150%, the ammoniacal liquor of addition 0.8%, rotate 10 minutes；Add 3%
Leather black dyestuff, rotates 40 minutes；Add plentiful type softness acrylic acid 3070, the 1.5%PAC of 2.5%, rotate 40 minutes；Add
2% filler melamine RP, 2% protein filling P, rotate 40 minutes；Mend the water of 100%60 DEG C, rotate 15 minutes；Add 4% to add
Fat agent GLH, 2% fatting agent OSL, 3% fatting agent BT and 3% fatting agent NFS, rotate 60 minutes；Add the fire retardant of 2%；Rotate 20
Minute；Add the formic acid 3% that mass concentration is 85%, rotate 50 minutes；
(6) top dye: the water of 53～55 DEG C of addition 150%, the formic acid of addition 0.5%, rotates 10 minutes；Add the skin of 1.5%
Leather dyestuff 10B, rotates 15 minutes；Add the formic acid of 0.5%, rotate 20 minutes；Discharge opeing is washed；
(7) Final finishing: goat glove leather finishing technique is carried out routinely, including go out skin take horse, hang dry dry, get damp again, fall
Soft, stretching, extension, toggling, deburring etc.；
(8) cover with paint, lacquer, colour wash, etc.: goat glove leather Coating technology is covered with paint, lacquer, colour wash, etc. routinely；Top finishing auxiliary agent prescription is as follows: 300 parts
3017 brighteners, 100 parts of RU-3904,80 parts of WT-2586,40 parts of WS-106,40 parts of HM-283,40 parts of fire retardant DT-A966 with
400 parts of water；Spray with pulp shooting machine, form fire resistant coating at leather top layer.
The present invention solves the technical problem of goat glove leather anti-flaming function.The inner characteristic of the present invention is mainly: first,
By adding fire retardant in wet manufacturing procedure, i.e. it is separately added into fire retardant in water field chrome retanned, neutralization in stuffing operation, makes
Fire retardant is progressively wrapped in around fibre bundle, with the progressive combination of fibre bundle, is difficult to migrate, has permanent anti-flammability, so that
Intrinsic fiber has anti-flammability；Second, in covering with paint, lacquer, colour wash, etc. later stage spray hand feeling agent, top finishing i.e. adds fire retardant DT-A966,
This material has excellent lasting fire resistance, thus forms fire resistant coating in terms of covering with paint, and fire resistant coating is equivalent to leather
One protective layer of fiber, forms fire resistant coating at leather surface, further enhances flame retardant effect, can be greatly enhanced leather
Burning-point when being heated and burn, thus it is flammable to reduce leather.The goat glove leather that the method provided by the present invention produces, warp
Test of many times contrast test, utilizes vertical combustion test contact naked light not burn, has fabulous fire resistance, be to make merit
The preferable cladding of energy property goat glove leather.
The present invention is from Point of Innovation and does skin principle, adds a certain amount of in normal goat glove leather manufacturing process
Fire retardant, makes leather and fur products have anti-flammability, so that it is guaranteed that the security that goat glove leather is in fire incident, for People's Armed Police's fire-fighting
Soldier is operated in scene of fire and provides more preferable safeguard measure.
Detailed description of the invention
The material product that following embodiment is used all is obtained by commercial sources；Unaccounted leather material is leather
Conventional material, is industrial goods.
Embodiment 1
1, weigh operation: weighing weight is the goat wet blue after 100kg PROCESS FOR TREATMENT shaving routinely, as follow-up work
Sequence wet process segment water and the mass percent foundation of use leather material.
2, backwater operation: rotary drum is initially charged the water of 43 DEG C of 150% × 100kg=150kg, add wetting agent SAF 0.2% ×
100kg=0.2kg, oxalic acid 1.0% × 100kg=1.0kg rotate 10 minutes, are subsequently adding the 100kg wet blue weighed up before, turn
Discharge opeing after dynamic 60 minutes.
Wherein: wetting agent SAF is the auspicious Products of moral.
3, chrome retanned operation: the water of 38 DEG C of addition 100% × 100kg=100kg in rotary drum, adds leather black after hypodermis
Dyestuff DMX1.5% × 100kg=1.5kg, rotates 15 minutes, is then being sequentially added into the soft gentle of 2.0% × 100kg=2.0kg
Type fatting agent GLH, rotation 30 minutes, add 1.0% × 100kg=1.0kg soft type acrylic acid double tanning agent PAC, rotate 40 minutes；
Adding the fire retardant DT-R888 of 2% × 100kg=2kg, rotate 20 minutes, adding 0.5% × 100kg=0.5kg mass concentration is
The formic acid of 85%, rotates 20 minutes, and regulation pH is 3.4；Adding 6% × 100kg=6kg basicity is the chromium powder of 33,2% × 100kg=
2kg containing chrome tanning agent HN, rotate 60 minutes, add 2% × 100kg=2kg fatty aldehyde PF, rotate 60 minutes；Add sodium formate
1.5% × 100kg=1.5kg, masking agent Yi Banna DC1.0% × 100kg=1.0kg, rotates 20 minutes；Add 0.5% × 100kg=
The sodium bicarbonate of 0.5kg, rotates 60 minutes；Survey PH4.0；Stop drum overnight.
Wherein: fatting agent GLH be Baume Products, retanning agent PAC be France's ATC Products, containing chromium retanning agent HN
Be the auspicious Products of moral, fatty aldehyde PF be Germany's Sima Products, masking agent Yi Banna DC be BASF AG's product, fire-retardant
Agent DT-R888 is dolantin booth river Products.
4, neutralization step: change the water of 38 DEG C that add 200% × 100kg=200kg after liquid, add 2% × 100kg=2kg's
Sodium formate, rotates 20 minutes；Add the sodium bicarbonate of 1.5% × 100kg=1.5kg, rotate 40 minutes, survey after PH5.8 addition 1% ×
The super soft natural oil fatting agent OSL of tear-proof of 100kg=1kg, rotates 40 minutes, adds the fire-retardant of 2% × 100kg=2kg
Agent DT-R820, rotates 20 minutes, and discharge opeing is washed.
Wherein: fatting agent OSL is Germany's Tang Pule Products, and fire retardant DT-R820 is dolantin booth river Products.
5, stuffing operation is filled: in rotary drum, add the water of 36 DEG C of 150% × 100kg=150kg, add 0.8% ×
The ammoniacal liquor of 100kg=0.8kg, rotates 10 minutes；Add the leather black dyestuff DMX of 3% × 100kg=3kg, rotate 40 minutes；Add
The plentiful soft type acrylic acid double tanning agent 3070 of 2.5% × 100kg=2.5kg, 1.5% × 100kg=1.5kg acrylic acid double tanning agent
PAC, rotates 40 minutes；Add filler melamine RP2% × 100kg=2.0kg, protein filling P2% × 100kg=2.0kg,
Rotate 40 minutes；Mend 100% × 100kg=100kg, the water of 60 DEG C, rotate 15 minutes；Then 4% × 100kg=it is sequentially added into
The soft mild fatting agent GLH of 4.0kg, adds the super soft natural oil fatting agent OSL of tear-proof of 2% × 100kg=2kg
, 3% × 100kg=3.0kg softness silk-like handle fatting agent BT, 3% × 100kg=3.0kg fatting agent NFS, rotate 60 minutes；2%×
The fire retardant DT-F626 of 100kg=2kg, rotates 20 minutes, adds formic acid 3% × 100kg=3.0kg that mass concentration is 85%, turns
Dynamic 50 minutes.
Wherein: filler RP be France ATC Products, fatting agent GLH be Baume Products, fatting agent OSL, stuffing
Agent NFS, fatting agent BT are Germany's Tang Pule Products, and fire retardant DT-F626 is dolantin booth river Products.
6, top dyer's sequence: change the water of 53 DEG C that add 150% × 100kg=150kg after liquid, add 0.5% × 100kg=
The formic acid of 0.5kg, rotates 10 minutes；Add the leather dye 10B of 1.5% × 100kg=1.5kg, rotate 15 minutes；Add 0.5%
The mass concentration of × 100kg=0.5kg is the formic acid of 85%, rotates 20 minutes；Discharge opeing is washed.
7, finishing process: Final finishing goat glove leather finishing technique routinely is carried out, takes horse including going out skin, hangs and dry
Dry, get damp again, stretch, toggling, deburring etc..
8, operation is covered with paint, lacquer, colour wash, etc.: goat glove leather Coating technology is covered with paint, lacquer, colour wash, etc. routinely；Top finishing auxiliary agent prescription is as follows:
9kg3017 brightener, 3kgRU-3904,2.4kgWT-2586,1.2kgWS-106,1.2kgHM-283,1.2kg fire retardant DT-
A966 Yu 12kg water；Spray with pulp shooting machine, form fire resistant coating at leather top layer.
Wherein: 3017 brighteners are Lanxess Corporation's products, WT-2586 height photopolymer resin, HM-283 hand feeling agent, RU-3904 are poly-
Urethane resin is this tal fibre Products, and fire retardant DT-A966 is dolantin booth river Products, and WS-106 hand feeling agent is that ATC is public
Department's product.
Embodiment 2
1, weigh operation: with embodiment 1；
2, backwater operation: rotary drum is initially charged the water of 45 DEG C of 150% × 100kg=150kg, add wetting agent SAF0.3% ×
100kg=0.3kg, oxalic acid 1.2% × 100kg=1.3kg rotate 10 minutes；Remaining with embodiment 1.
3, chrome retanned operation: the water of 40 DEG C of addition 100% × 100kg=100kg, remaining same embodiment 1. in rotary drum
4, neutralization step: change the water of 40 DEG C that add 200% × 100kg=200kg after liquid, add 2% × 100kg=2kg's
Sodium formate, rotates 20 minutes；Add the sodium bicarbonate of 1.5% × 100kg=1.5kg, rotate 40 minutes, after surveying PH5.9, remaining with implementing
Example 1.
5, stuffing operation is filled: the water of 38 DEG C of addition 150% × 100kg=150kg, remaining same embodiment 1 in rotary drum.
6, top dyer's sequence: change the water of 55 DEG C that add 150% × 100kg=150kg after liquid, remaining same embodiment 1.
7, finishing process: with embodiment 1.
8, operation is covered with paint, lacquer, colour wash, etc.: with embodiment 1.
Claims (2)
1. a preparation method for fire-retardant goat glove leather, blue with the goat after the shaving that prior art common process processes
Wet skin is raw material, be weighed, backwater, chrome retanned, neutralize, fill stuffing with top dye, goat glove leather technique is entered the most routinely
Row Final finishing and covering with paint, it is characterised in that: chrome retanned, neutralize and fill in stuffing operation and be separately added into fire retardant, covering with paint, lacquer, colour wash, etc. rank
The top finishing of section adds flame retardant materials spray；Concrete technology step is as follows:
(1) weigh: weigh the goat wet blue after shaving, as subsequent handling wet process segment water and the matter of use leather material
Amount percentage foundation；
(2) backwater: be initially charged the water of 43～45 DEG C of 150% in rotary drum, add wetting agent SAF0.2%～0.3%, oxalic acid 1.0%～
1.2%, rotate 10 minutes；Then hypodermis, rotates 60 minutes, discharge opeing；
(3) chrome retanned: the water of 38～40 DEG C of addition 100%, adds leather black dyestuff 1.5%, rotates 15 minutes；It is subsequently adding
The soft mild fatting agent GLH of 2.0%, rotates 30 minutes；Add 1.0% soft type acrylic acid double tanning agent PAC, rotate 40 points
Clock；Add the fire retardant of 2%, rotate 20 minutes；Adding the formic acid that 0.5% mass concentration is 85%, rotate 20 minutes, regulation PH is
3.4；Add chromium powder that 6% basicity is 33,2% containing chrome tanning agent HN, rotate 60 minutes；Add the fatty aldehyde PF of 2%, rotate 60 points
Clock；Add sodium formate 1.5%, masking agent Yi Banna DC1.0%, rotate 20 minutes；Add the sodium bicarbonate of 0.5%～0.6%, rotate 60
Minute, survey PH4.0；Stop drum overnight；
(4) neutralize: add 38 DEG C～the water of 40 DEG C, the sodium formate of addition 2% of 200% after changing liquid, rotate 20 minutes, add 1.5%
Sodium bicarbonate, rotate 40 minutes, survey and add the tear-proof fatting agent OSL of 1% after PH5.8～6.0, rotate 40 minutes, add 2%
Fire retardant, rotate discharge opeing washing after 20 minutes；
(5) fill stuffing: the water of 36～38 DEG C of addition 150%, the ammoniacal liquor of addition 0.8%, rotate 10 minutes；Add the leather of 3%
Black dyestuff, rotates 40 minutes；Add plentiful type softness acrylic acid 3070, the 1.5%PAC of 2.5%, rotate 40 minutes；Add 2% to fill out
Fill agent melamine RP, 2% protein filling P, rotate 40 minutes；Mend the water of 100%60 DEG C, rotate 15 minutes；Add 4% fatting agent
GLH, 2% fatting agent OSL, 3% fatting agent BT and 3% fatting agent NFS, rotate 60 minutes；Add the fire retardant of 2%；Rotate 20 minutes；
Add the formic acid 3% that mass concentration is 85%, rotate 50 minutes；
(6) top dye: the water of 53～55 DEG C of addition 150%, the formic acid of addition 0.5%, rotates 10 minutes；Add the leather dye of 1.5%
Material 10B, rotates 15 minutes；Add the formic acid of 0.5%, rotate 20 minutes；Discharge opeing is washed；
(7) Final finishing: goat glove leather finishing technique is carried out routinely, including go out skin take horse, hang dry dry, get damp again, fall soft, stretch
Exhibition, toggling, deburring；
(8) cover with paint, lacquer, colour wash, etc.: goat glove leather Coating technology is covered with paint, lacquer, colour wash, etc. routinely；Top finishing auxiliary agent prescription is as follows: 300kg3017 light
Bright dose, 100kgRU-3904,80kgWT-2586,40kgWS-106,40kgHM-283,40kg fire retardant DT-A966 and 400kg
Water；Spray with pulp shooting machine, form fire resistant coating at leather top layer.
The preparation method of a kind of fire-retardant goat glove leather the most as claimed in claim 1, it is characterised in that: step (3) chrome retanned
Fire retardant be fire retardant DT-R888, the fire retardant that step (4) neutralizes is fire retardant DT-R820, and step (5) fills stuffing
Fire retardant is fire retardant DT-F626, and the fire retardant added in the top finishing in the stage of covering with paint is fire retardant DT-A966.
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| CN201410647881.6A CN104357592B (en) | 2014-11-14 | 2014-11-14 | A kind of preparation method of fire-retardant goat glove leather |
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| CN201410647881.6A CN104357592B (en) | 2014-11-14 | 2014-11-14 | A kind of preparation method of fire-retardant goat glove leather |
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| CN104357592B true CN104357592B (en) | 2016-08-24 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105506195B (en) * | 2015-11-27 | 2017-08-01 | 峰安皮业股份有限公司 | A kind of production method of fire-retardant suede |
| CN108330226B (en) * | 2018-02-09 | 2020-07-28 | 漳州香洲皮革有限公司 | Method for manufacturing fireproof leather |
| CN111778368A (en) * | 2020-06-24 | 2020-10-16 | 海宁新上元新材料股份有限公司 | Manufacturing process of goat conductive glove leather |
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| CN101100697A (en) * | 2006-07-07 | 2008-01-09 | 现代自动车株式会社 | Method of making genuine leather |
| CN101812549A (en) * | 2010-03-25 | 2010-08-25 | 烟台制革有限责任公司 | Natural ecological jean leather and manufacturing method thereof |
| CN101914637A (en) * | 2010-08-18 | 2010-12-15 | 辉县市明德皮业有限公司 | Chrome-tanned, water-dyed and polished leather manufacturing method |
| CN102978299A (en) * | 2012-11-29 | 2013-03-20 | 际华三五一二皮革服装有限公司 | Manufacturing method of light, thin and soft high-strength goat gloving leather |
| CN103225004A (en) * | 2013-04-24 | 2013-07-31 | 青铜峡市忠盛工贸有限公司 | Xilu goat fur treatment process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101100697A (en) * | 2006-07-07 | 2008-01-09 | 现代自动车株式会社 | Method of making genuine leather |
| CN101812549A (en) * | 2010-03-25 | 2010-08-25 | 烟台制革有限责任公司 | Natural ecological jean leather and manufacturing method thereof |
| CN101914637A (en) * | 2010-08-18 | 2010-12-15 | 辉县市明德皮业有限公司 | Chrome-tanned, water-dyed and polished leather manufacturing method |
| CN102978299A (en) * | 2012-11-29 | 2013-03-20 | 际华三五一二皮革服装有限公司 | Manufacturing method of light, thin and soft high-strength goat gloving leather |
| CN103225004A (en) * | 2013-04-24 | 2013-07-31 | 青铜峡市忠盛工贸有限公司 | Xilu goat fur treatment process |
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