CN105671220A - Chrome-free tanning preparation process for top-layer pigskin suede clothing leather - Google Patents
Chrome-free tanning preparation process for top-layer pigskin suede clothing leather Download PDFInfo
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- CN105671220A CN105671220A CN201610050182.2A CN201610050182A CN105671220A CN 105671220 A CN105671220 A CN 105671220A CN 201610050182 A CN201610050182 A CN 201610050182A CN 105671220 A CN105671220 A CN 105671220A
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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
- C14C1/08—Deliming; Bating; Pickling; Degreasing
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/02—Fleshing, unhairing, samming, stretching-out, setting-out, shaving, splitting, or skiving skins, hides, or 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
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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
- C14C3/08—Chemical tanning by organic agents
- C14C3/16—Chemical tanning by organic agents using aliphatic aldehydes
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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
- C14C3/28—Multi-step processes
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C5/00—Degreasing leather
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- 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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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B2700/00—Mechanical treatment or processing of skins, hides or leather in general; Pelt-shearing machines; Making driving belts; Machines for splitting intestines
- C14B2700/14—Processes or apparatus for setting-out, smoothing, ironing or polishing leather or hides
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention belongs to the field of preparation processes for suede clothing leather, and particularly relates to a chrome-free tanning preparation process for top-layer pigskin suede clothing leather. The chrome-free tanning preparation process comprises the following steps (the mass of pickled skin is taken as reference for the added amounts of additives in each procedure from the crust of the pickled skin): degreasing and softening, pickling and softening, main tanning, main degreasing, wringing and re-tanning, wringing and greasing, and dyeing and greasing. The invention provides a chrome-free tanning preparation process for top-layer pigskin suede clothing leather. The chrome-free tanning preparation process has the advantages that steps are simple, preparation efficiency is high, requirements on equipment during a preparation process are high, energy saving and environment friendliness are achieved, and the prepared suede clothing leather is wear-resistant, high-temperature-resistant, full and soft.
Description
Technical field
The invention belongs to anti-suede garment leather preparation technology field, particularly relate to a kind of without the chrome tanning anti-suede garment leather preparation technology of Corii Sus domestica head layer.
Background technology
Curriery is traditional light industry that China is important, is also one of comparatively serious industry of blowdown. Traditional leather many employings chromium makes tanning agent, the chrome leather that processing prepares has high temperature resistant, Heat stability is good, leather body is plentiful, soft advantage, but it is because the heavy metal pollution that chromium ore resource is limited and chrome tanning produces, in people's pay attention to day by day living environment, pay close attention to the today using environmental protection leather, develop and become inexorable trend without chrome tanning leather.
Patent publication No. is CN101225450A, publication date is the Chinese invention patent of the 2008.07.23 chrome-free tanning production technology that discloses a kind of goat skin gloves leather, include following step, softening → pickling → organic phosphine tanning → aoxidize → take horse standing → water squeezing stretching, extension → shaving → washing → defat, rinsing → washing → using brother chemicals → washing, then chrome tanning subsequent technique routinely carries out.
But it is complicated to there is tanning step in the production technology of this invention, and efficiency is low, and the glove leather of tanning is of poor quality, plentiful not, problem soft not.
Summary of the invention
It is an object of the invention to provide a kind of without the chrome tanning anti-suede garment leather preparation technology of Corii Sus domestica head layer, it is simple that it has step, and preparation efficiency is high, and the anti-suede garment leather preparing gained is wear-resisting, high temperature resistant, plentiful, soft advantage.
This invention address that problem above the technical scheme is that a kind of without the chrome tanning anti-suede garment leather preparation technology of Corii Sus domestica head layer, comprise the following steps (from acid skin scytoblastema, the addition of each operation additive with acid skin quality for benchmark): defat eases back, pickling eases back, main tanning, main defat, water squeezing retanning, water squeezing stuffing and dyeing and fat-liquoring, the described defat liquor ratio in step that eases back is 100%, add the degreasing agent of 1.0-2.0% and the Nacl of 10-12%, pH is 6.0-6.2, temperature is 25-28 DEG C, the defat time of easing back is 60-90min, the described pickling liquor ratio in step that eases back is 100-200%, add the sulphuric acid of 1.0-1.5% and the Nacl of 10-12%, pH is 1.8-2.0, temperature is 25-26 DEG C, the pickling time of easing back is 120-150min, the tanning agent adopted in described main tanning step is aluminium tanningagent and aldehyde tanning agent, pH scope divides three phases, early stage is 3.0-3.2, add sodium formate by first time and sodium bicarbonate regulates, mid-term is 3.5-3.6, add sodium formate by second time to regulate, later stage is 4.0-5.0, add sodium bicarbonate by second time to regulate, temperature is 35-36 DEG C, in described main defatting step, liquor ratio is 100%, add the oxalic acid of 1.0-1.5% and the degreasing agent of 1.0-1.2%, pH is 3.0-3.4, temperature is 32-36 DEG C, main degreasing time is 60-80min, the tanning agent adopted in described water squeezing retanning step is aluminium tanningagent, liquor ratio is 150-180%, pH scope divides two stages, early stage is 4.2-4.5, add sodium bicarbonate by first time to regulate, later stage is 6.5-6.6, add sodium bicarbonate by second time to regulate, water squeezing retanning temperature is 32-35 DEG C, in described water squeezing fatliquoring steps, liquor ratio is the fatting agent of 100% employing is fat liquoring complex agent, pH is 3.8-4.0, temperature is 50-52 DEG C, the water squeezing stuffing time is 150-160min, in described dyeing and fat-liquoring step, liquor ratio is 500%, pH is 4.0-4.2, temperature is 45-50 DEG C.It is simple that the preparation technology of the anti-suede garment leather of Corii Sus domestica head layer described in this setting has step, and preparation efficiency is high, and preparation process is low to the requirement of equipment and the advantage of energy-conserving and environment-protective.
It is preferred that technical scheme be in that: described main tanning step is initially charged sodium formate adding before described tanning agent, sodium bicarbonate and phosphoglycerol three ester, stirring 60-70min, the amount being sequentially added into described aluminium tanningagent is 2.0-2.2%, described aldehyde tanning agent is 6.0-6.5%, the amount of described aldehyde tanning agent uniformly divides three parts, successively it is separately added into for three times, and be stirred continuously, add other compositions in main tanning afterwards, it is sequentially added into sodium formate, antioxidant, tannin, ferrum powder, antifungus agent and sodium bicarbonate, the amount of described main other compositions of tanning range for 8.0-12.0%, finally stir 300-500min.
It is preferred that technical scheme be in that: described tannin is vegetable tannins essence, and the amount of addition is 6.0-6.2%, point is uniformly added into for three times, and every minor tick 30-35min, period is stirred continuously.
It is preferred that technical scheme be in that: described second time sodium bicarbonate add amount be 1.5-2.0%, be divided into five additions, every minor tick 30-35min, period is stirred continuously.
It is preferred that technical scheme be in that: be sequentially carried out out drum after described main tanning step and take horse standing, setting-out, get rid of soft and shaving deburring step.
It is preferred that technical scheme be in that: described water squeezing retanning step adopts glutaraldehyde tanning agent and aluminium tanningagent as tanning agent, the amount of described glutaraldehyde tanning agent is 2.0-2.5%, the amount of described aluminium tanningagent is 2.0-2.2%, stir 30-35min afterwards, adding the tannin of 3.0-3.5%, the protein filling of 2.0-2.2% and the sodium bicarbonate adjustment pH of 1.0-1.5% after adding described tanning agent is 4.2-4.5, complete the early stage operation of described water squeezing retanning step, carry out the later stage operation of described water squeezing retanning step afterwards and improve pH to 6.5-6.6. This retanning arranges the richness that improve obtained anti-suede garment leather, is conducive to the follow-up dyeing of leather more uniform. .
It is preferred that technical scheme be in that: the later stage operation in described water squeezing retanning step, including adding the leather gloss oil of 2.0-3.0% and adding the sodium bicarbonate of the sodium formate of 1.0-1.2% and 1.5-2.0% to regulate pH be 6.5-6.6, stir 90-120min.
It is preferred that technical scheme be in that: described water squeezing fatliquoring steps is sequentially added into fat liquoring complex agent, the dyestuff of first time dyeing and adjuvant, described fat liquoring complex agent includes the linoleic acid fish oil of 2.0-2.5% and the sulfonation artificial oil of 4.0-1.5%, described adjuvant includes the complex of the dispersant of 1.0-1.4%, the migration inhibitor of 4.0-4.6% and the softening agent of 3.0-3.8% and emulsifying agent, 90-100min is stirred after having added, it is eventually adding 1.0-1.2% first acid for adjusting pH to 3.8-4.0, described formic acid is uniformly added at twice, interval 30-35min.
It is preferred that technical scheme be in that: be sequentially carried out cooling water outlet after described water squeezing fatliquoring steps, get rid of soft toggling and first time deburring.
It is preferred that technical scheme be in that: described dyeing and fat-liquoring step is divided into second time dyeing process and stuffing operation, described dyeing process adds dyestuff and surface active agent, the total amount that surface active agent adds is 1.5-2.0%, the amount of the fatting agent added in described stuffing operation is 6.0-8.0%, finally being stirred and regulate pH, mixing time is 100-120min.
The present invention provides a kind of without the chrome tanning anti-suede garment leather preparation technology of Corii Sus domestica head layer, and it is simple that it has step, and preparation efficiency is high, and preparation process is low for equipment requirements, energy-conserving and environment-protective, and the anti-suede garment leather preparing gained is wear-resisting, high temperature resistant, plentiful, soft advantage.
Detailed description of the invention
The following stated is only presently preferred embodiments of the present invention, non-the scope of the present invention is defined.
Embodiment: a kind of without the chrome tanning anti-suede garment leather preparation technology of Corii Sus domestica head layer, comprise the following steps (from acid skin scytoblastema, the addition of each operation additive is with the quality of acid skin for benchmark): defat eases back, pickling eases back, main tanning, main defat, water squeezing retanning, water squeezing stuffing and dyeing and fat-liquoring, the following detailed description of the specific embodiment of the present invention:
Operation consumption materials temperature-time remarks
Defat eases back 25 DEG C of liquor ratios 100% of 10% Nacl
1.0% degreasing agent 60minpH6.0
25 DEG C of washing 20min
Pickling eases back 25 DEG C of liquor ratios 100% of 10% Nacl
1.0% sulphuric acid 120minpH1.8
Main tanning 1.0% sodium formate
0.5% sodium bicarbonate 30minpH3.0
0.5% phosphoglycerol three ester 30min
2.0% aluminium tanningagent 60min
2.0% glutaraldehyde tanning agent 60min
2.0% glutaraldehyde tanning agent 60min
2.0% glutaraldehyde tanning agent 90min
1.0% sodium formate 30minpH3.5
1.0% antioxidant 10min
2.0% tannin 30min
2.0% tannin 30min
2.0% tannin 90min
0.2% iron powder
0.1% antifungus agent 30min
1.5% sodium bicarbonate 30 × 5minpH4.0
(be warming up to 35 DEG C, stir 300min, then stop drum overnight)
Go out drum take horse stand, setting-out get rid of soft, shaving deburring
Main 32 DEG C of liquor ratios 100% of defat 1.0% oxalic acid
1.0% degreasing agent 60minpH3.2
32 DEG C of 30min liquor ratios 150% of water squeezing retanning 2.0% glutaraldehyde tanning agent
2.0% aluminium tanningagent 60min
3.0% tannin 60min
2.0% Techniques of Protein Filling Agents 60min
1.0% sodium bicarbonate 30 × 4minpH4.2
2.0% leather gloss oil
1.0% sodium formate
1.5% sodium bicarbonate 90minpH6.5
50 DEG C of water squeezing stuffing 2.0% linoleic acid fish oil
4.0% sulfonation artificial oil
Dyestuff
1.0% dispersant
4.0% migration inhibitor
3.0% softening agent, emulsifier complex 90min
1.0% formic acid 30 × 2minpH3.8
Cooling water outlet, hang dry in the air get rid of soft, toggling deburring
Dyeing and fat-liquoring dyestuff 45 DEG C
1.5% surface active agent
6.0% fatting agent 100min
1.5% formic acid 30 × 2minpH4.0
Cooling take out, hang dry in the air get rid of soft, toggling deburring, deburring dipping put in storage
Above embodiments of the present invention are explained in detail, but the invention is not restricted to above-mentioned embodiment, in the ken that described technical field those of ordinary skill possesses, it is also possible under the premise without departing from present inventive concept, make various amendment. These are all not creative amendments, as long as being affected by the protection of Patent Law in scope of the presently claimed invention.
Claims (10)
1. one kind without the chrome tanning anti-suede garment leather preparation technology of Corii Sus domestica head layer, comprise the following steps (from acid skin scytoblastema, the addition of each operation additive with acid skin quality for benchmark): defat eases back, pickling eases back, main tanning, main defat, water squeezing retanning, water squeezing stuffing and dyeing and fat-liquoring, it is characterized in that: the described defat liquor ratio in step that eases back is 100%, add the degreasing agent of 1.0-2.0% and the Nacl of 10-12%, pH is 6.0-6.2, temperature is 25-28 DEG C, the defat time of easing back is 60-90min, the described pickling liquor ratio in step that eases back is 100-200%, add the sulphuric acid of 1.0-1.5% and the Nacl of 10-12%, pH is 1.8-2.0, temperature is 25-26 DEG C, the pickling time of easing back is 120-150min, the tanning agent adopted in described main tanning step is aluminium tanningagent and aldehyde tanning agent, pH scope divides three phases, early stage is 3.0-3.2, add sodium formate by first time and sodium bicarbonate regulates, mid-term is 3.5-3.6, add sodium formate by second time to regulate, later stage is 4.0-5.0, add sodium bicarbonate by second time to regulate, temperature is 35-36 DEG C, in described main defatting step, liquor ratio is 100%, add the oxalic acid of 1.0-1.5% and the degreasing agent of 1.0-1.2%, pH is 3.0-3.4, temperature is 32-36 DEG C, main degreasing time is 60-80min, the tanning agent adopted in described water squeezing retanning step is aluminium tanningagent, liquor ratio is 150-180%, pH scope divides two stages, early stage is 4.2-4.5, add sodium bicarbonate by first time to regulate, later stage is 6.5-6.6, add sodium bicarbonate by second time to regulate, water squeezing retanning temperature is 32-35 DEG C, in described water squeezing fatliquoring steps, liquor ratio is the fatting agent of 100% employing is fat liquoring complex agent, pH is 3.8-4.0, temperature is 50-52 DEG C, the water squeezing stuffing time is 150-160min, in described dyeing and fat-liquoring step, liquor ratio is 500%, pH is 4.0-4.2, temperature is 45-50 DEG C.
2. according to claim 1 a kind of without the chrome tanning anti-suede garment leather preparation technology of Corii Sus domestica head layer, it is characterized in that: described main tanning step was initially charged sodium formate before adding described tanning agent, sodium bicarbonate and phosphoglycerol three ester, stirring 60-70min, the amount being sequentially added into described aluminium tanningagent is 2.0-2.2%, described aldehyde tanning agent is 6.0-6.5%, the amount of described aldehyde tanning agent uniformly divides three parts, successively it is separately added into for three times, and be stirred continuously, add other compositions in main tanning afterwards, it is sequentially added into sodium formate, antioxidant, tannin, ferrum powder, antifungus agent and sodium bicarbonate, the amount of described main other compositions of tanning range for 8.0-12.0%, finally stir 300-500min.
3. according to claim 2 a kind of without the chrome tanning anti-suede preparation technology of Corii Sus domestica head layer, it is characterised in that: described tannin is vegetable tannins essence, and the amount of addition is 6.0-6.2%, divides and is uniformly added into for three times, and every minor tick 30-35min, period is stirred continuously.
4. according to claim 2 a kind of without the chrome tanning anti-suede preparation technology of Corii Sus domestica head layer, it is characterised in that: the amount that described second time sodium bicarbonate adds is 1.5-2.0%, is divided into five additions, and every minor tick 30-35min, period is stirred continuously.
5. according to claim 1 a kind of without the chrome tanning anti-suede preparation technology of Corii Sus domestica head layer, it is characterised in that: it is sequentially carried out out drum after described main tanning step and takes horse standing, setting-out, get rid of soft and shaving deburring step.
6. according to claim 1 a kind of without the chrome tanning anti-suede preparation technology of Corii Sus domestica head layer, it is characterized in that: described water squeezing retanning step adopts glutaraldehyde tanning agent and aluminium tanningagent as tanning agent, the amount of described glutaraldehyde tanning agent is 2.0-2.5%, the amount of described aluminium tanningagent is 2.0-2.2%, stir 30-35min afterwards, the tannin of 3.0-3.5% is added after adding described tanning agent, it is 4.2-4.5 that the protein filling of 2.0-2.2% and the sodium bicarbonate of 1.0-1.5% regulate pH, complete the early stage operation of described water squeezing retanning step, carry out the later stage operation of described water squeezing retanning step afterwards and improve pH to 6.5-6.6.
7. according to claim 6 a kind of without the chrome tanning anti-suede preparation technology of Corii Sus domestica head layer, it is characterized in that: the later stage operation in described water squeezing retanning step, including adding the leather gloss oil of 2.0-3.0% and adding the sodium bicarbonate of the sodium formate of 1.0-1.2% and 1.5-2.0% to regulate pH be 6.5-6.6, stir 90-120min.
8. according to claim 1 a kind of without the chrome tanning anti-suede preparation technology of Corii Sus domestica head layer, it is characterized in that: described water squeezing fatliquoring steps is sequentially added into fat liquoring complex agent, the dyestuff of first time dyeing and adjuvant, described fat liquoring complex agent includes the linoleic acid fish oil of 2.0-2.5% and the sulfonation artificial oil of 4.0-4.5%, described adjuvant includes the dispersant of 1.0-1.4%, the complex of the migration inhibitor of 4.0-4.6% and the softening agent of 3.0-3.8% and emulsifying agent, 90-100min is stirred after having added, it is eventually adding 1.0-1.2% first acid for adjusting pH to 3.8-4.0, described formic acid is uniformly added at twice, interval 30-35min.
9. according to claim 8 a kind of without the chrome tanning anti-suede preparation technology of Corii Sus domestica head layer, it is characterised in that: it is sequentially carried out cooling water outlet after described water squeezing fatliquoring steps, gets rid of soft toggling and first time deburring.
10. according to claim 1 a kind of without the chrome tanning anti-suede preparation technology of Corii Sus domestica head layer, it is characterized in that: described dyeing and fat-liquoring step is divided into second time dyeing process and stuffing operation, described dyeing process adds dyestuff and surface active agent, the total amount that surface active agent adds is 1.5-2.0%, the amount of the fatting agent added in described stuffing operation is 6.0-8.0%, finally being stirred and regulate pH, mixing time is 100-120min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050182.2A CN105671220B (en) | 2016-01-26 | 2016-01-26 | One kind is without the anti-suede garment leather preparation technology of chrome tanning pigskin head layer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050182.2A CN105671220B (en) | 2016-01-26 | 2016-01-26 | One kind is without the anti-suede garment leather preparation technology of chrome tanning pigskin head layer |
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| CN105671220A true CN105671220A (en) | 2016-06-15 |
| CN105671220B CN105671220B (en) | 2018-03-23 |
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| CN201610050182.2A Expired - Fee Related CN105671220B (en) | 2016-01-26 | 2016-01-26 | One kind is without the anti-suede garment leather preparation technology of chrome tanning pigskin head layer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201600078139A1 (en) * | 2016-07-26 | 2018-01-26 | Glycolor S R L | USE OF TRIETHYL CITRATE AND / OR 6'-DEOSSI-6'-PIPERAZINYL-2.3: 5.6: 3 ', 4'-TRI-O- (ISOPROPYLIDEN) LACTOSE DIMETHYL ACETAL AND THEIR COMPOSITIONS IN ANIMAL SKIN PROCESSING AND IN THE DYEING OF WOOD. |
| CN111763782A (en) * | 2020-08-11 | 2020-10-13 | 湖南银河制革有限公司 | Preparation process of white super-soft environment-friendly leather |
| CN116732254A (en) * | 2023-07-05 | 2023-09-12 | 隆丰革乐美时尚有限公司 | Production process of grain-face suede double-sided leather |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463397A (en) * | 2009-01-14 | 2009-06-24 | 王德振 | Method for manufacturing chromium-free tanning environment protection pigskin shoes |
| 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 |
-
2016
- 2016-01-26 CN CN201610050182.2A patent/CN105671220B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463397A (en) * | 2009-01-14 | 2009-06-24 | 王德振 | Method for manufacturing chromium-free tanning environment protection pigskin shoes |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201600078139A1 (en) * | 2016-07-26 | 2018-01-26 | Glycolor S R L | USE OF TRIETHYL CITRATE AND / OR 6'-DEOSSI-6'-PIPERAZINYL-2.3: 5.6: 3 ', 4'-TRI-O- (ISOPROPYLIDEN) LACTOSE DIMETHYL ACETAL AND THEIR COMPOSITIONS IN ANIMAL SKIN PROCESSING AND IN THE DYEING OF WOOD. |
| CN111763782A (en) * | 2020-08-11 | 2020-10-13 | 湖南银河制革有限公司 | Preparation process of white super-soft environment-friendly leather |
| CN111763782B (en) * | 2020-08-11 | 2021-11-26 | 湖南银河制革有限公司 | Preparation process of white super-soft environment-friendly leather |
| CN116732254A (en) * | 2023-07-05 | 2023-09-12 | 隆丰革乐美时尚有限公司 | Production process of grain-face suede double-sided leather |
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| Publication number | Publication date |
|---|---|
| CN105671220B (en) | 2018-03-23 |
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