CN109576409A - The sturgeon skin belt that glistens removes from office production method - Google Patents
The sturgeon skin belt that glistens removes from office production method Download PDFInfo
- Publication number
- CN109576409A CN109576409A CN201811506843.3A CN201811506843A CN109576409A CN 109576409 A CN109576409 A CN 109576409A CN 201811506843 A CN201811506843 A CN 201811506843A CN 109576409 A CN109576409 A CN 109576409A
- Authority
- CN
- China
- Prior art keywords
- water
- rotary drum
- sturgeon skin
- added
- sturgeon
- 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
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
- 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
- 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
- C14B1/40—Softening or making skins or leather supple, e.g. by staking, boarding, or crippling machines, by dry mills
-
- 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
- C14B1/44—Mechanical treatment of leather surfaces
- C14B1/46—Fluffing, buffing, or sanding
-
- 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
- C14B1/44—Mechanical treatment of leather surfaces
- C14B1/54—Ironing
-
- 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
- C14C15/00—Apparatus for chemical treatment or washing of hides, skins, 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
- C14C3/06—Mineral tanning using chromium compounds
-
- 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
- C14C3/28—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
- C14C5/00—Degreasing 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
- 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)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention belongs to leather processing fields, specifically disclose flash of light sturgeon skin belt leather production method, applicant is elongated for flash of light sturgeon figure, bone plate queueing discipline is consistent, and bone plate is relatively small, the relatively thin feature of hide, solves the technical problem in flash of light sturgeon leather processing procedure, major tuneup has been carried out in the selection of industrial chemicals and process for tanning, it is the flash of light sturgeon leather water-proof that processes, moisture-proof, soft, plentiful, tear-resistant, it is the quality material for making luxury goods belt, watchband.
Description
Technical field
The invention belongs to leather processing fields, and in particular to flash of light sturgeon skin belt removes from office production method.
Background technique
Since flash of light sturgeon (A.stellatus) fish skin leather surface is dispersed with the natural bone plate of 5 column, and the sturgeon figure that glistens is thin
Long, bone plate queueing discipline is consistent, and bone plate is relatively small, and hide is relatively thin, and advanced belt and luxury goods watchband is suitble to produce, right
In the leather of belt and watchband, waterproof, moisture-proof, sweat proof are needed, conventional tannery is extremely difficult to the requirement of luxury goods production,
The present invention has focused on solving the technical problem in flash of light sturgeon leather processing procedure, in the selection and process for tanning of industrial chemicals
Major tuneup has been carried out, it is the flash of light sturgeon leather water-proof that processes, moisture-proof, soft, plentiful, tear-resistant, it is production luxury goods skin
The quality material of band, watchband.
Summary of the invention
The object of the present invention is to provide flash of light sturgeon skin belts to remove from office production method, the flash of light processed using this method
It is sturgeon leather water-proof, moisture-proof, soft, plentiful, tear-resistant, it is the quality material for making luxury goods belt, watchband.
In order to achieve the above object, the present invention takes following technical measures:
The sturgeon skin belt that glistens removes from office production method, includes the following steps:
1, rotary drum immersion, pre- degreasing
(1) material selection: flash of light sturgeon skin is sufficiently washed, and is weighed after washing；
(2) the immersion agent of the 1-1.5% of the flash of light sturgeon skin weight of step (1) acquisition, the fungicide of 1-2%, 2- are weighed
4% degreasing agent, the water of 200-300%；
(3) it soaks: sturgeon skin and water being put into rotary drum, mix up 20-22 degrees Celsius of temperature value, immersion agent is then added, kills
Microbial inoculum, degreasing agent rotate rotary drum, and 2-4 revs/min of rotary drum revolving speed turns to stop within 10-20 minute 40-50 minute, certainly feed intake start of calculation to turn
Drum rotation terminates total 12-24h, and then flowing water cleans in rotary drum, out drum control water；
2, liming degreasing
(1) the sturgeon skin weighing that step 1 obtains after cleaning；
(2) NaHS particle (the effective content 60- of the 1.0-2.0% of sturgeon skin weight in step 2 (1) is weighed
80%), the lime of 8-12%, the auxiliary liming agent of 0.5-1%, the degreasing agent of 2-4%, the water of 300-400%；
(3) ready sturgeon skin and water are put into rotary drum, sets 22-24 degrees Celsius of temperature, rotate rotary drum, revolving speed 1-
3 revs/min, degreasing agent is added, the NaHS that water has dissolved rotates 25-35 minutes；Auxiliary liming agent, lime is added, turns 5-15
Minute stops 45-55 minutes, 2-4 revs/min of rotary drum revolving speed, and the start of calculation that feeds intake certainly terminates to be 12-24h to rotary drum rotation；
(4) terminal: sturgeon skin expansion is uniform, strong solution ph > 12 of skin body.
(5) it washes: the washing of rotary drum room temperature flowing water；
3, mechanical degreasing, fleshing
(1) upward by sturgeon skin flesh noodles, brush grease and the flesh of fish with wire brush；
(2) clear water rinses the sturgeon skin after degreasing well；
4, deliming degreasing
(1) step 3 treated sturgeon skin weighing；
(2) ammonium sulfate of the 1-2% of step 4 (1) sturgeon skin weight is weighed, the degreasing agent of 1-2%, the water of 100-200%,
The deliming auxiliary agent of 0.5-1%；
(3) sturgeon skin and water are put into rotary drum, sets 33-36 degrees Celsius of temperature, ammonium sulfate, degreasing agent and deliming is added
Auxiliary agent, 1-3 revs/min of rotary drum revolving speed turn 20-30 minutes；
(4) wash: 33--36 DEG C water is sufficiently cleaned；
5, soften
(1) the sturgeon skin weighing that step 4 is handled well；
(2) water of the 100-200% of the sturgeon skin weight of step 5 (1), the pancreatin of 0.5-1%, the sulphur of 0.5-1% are weighed
Sour ammonium；
(3) will glisten sturgeon skin and water investment rotary drum, set 35-37 degrees Celsius of water temperature, pancreatin and ammonium sulfate is added, turn
1-3 revs/min of revolving speed of drum, rotates 20-30 minutes；
(4) terminal: grain is smooth, pure white, and finger pressure has fingerprint, the flexible consolidation of skin body
(5) wash: 35-37 degrees Celsius of warm water is sufficiently washed in rotary drum；
6, pickling
(1) the sturgeon skin weighing that step 5 is handled well；
(2) water of the 100-200% of the sturgeon skin weight of step 6 (1) is weighed, the salt of 10-16%, the acetic acid of 2-4%,
The concentrated sulfuric acid of 1-3%, the nonionic degreasing agent of 2-4%；
(3) sturgeon skin and water are put into rotary drum, sets 20-24 degrees Celsius of temperature, salt is added, rotate rotary drum, 1-3
Rev/min, it rotates 20-30 minutes；Degreasing agent is added, divides 2-3 that the acetic acid after the dilution of equivalent is added, turns every time 20-30 minutes,
Turn 2-4 revs/min；Then the average mark 4-6 times concentrated sulfuric acid being added after dilution, turns 20-30 minutes, 2-4 revs/min of revolving speed every time
Then since clock stop to rouse standing, amount to 12-24h to the standing end time feeding intake；
(4) terminal: surface is astringent, and skin body is flexible, consolidation, solution ph 2.0-3.0；
(5) degreasing: taking out sturgeon skin under sour skin state, mechanical degreasing is put into former pickling liquid again after sturgeon skin weighing；
7, tanning
(1) modified glutaraldehyde of the 2-4% of the sturgeon skin weight of step 6 is weighed, the aluminium tanningagent of 1.5-3%, 10-12%'s
The white tannin extract of Bai Danning, 10-12%, the formic acid of 1-2% are received, the sodium bicarbonate of 1.5-2.5%, the mould inhibitor of 1-2%；
(2) it operates
It is carried out in former pickling liquid, sets 22-24 degrees Celsius of temperature, the modified glutaraldehyde after dilution is added rotates 1-
2h, 2-4 rev/min；Aluminium tanningagent is added, turns 1-2h, 2-4 revs/min of rotary drum；White tannin is added, white tannin extract turns 1-2h, 2-4
Rev/min, stop rousing standing, finishes total 12-24h to standing since feeding intake；
(3) formic acid being added to receive, mould inhibitor turns 1-2h, and 2-4 revs/min；Divide 5-8 equivalent that the sodium bicarbonate after dilution is added,
Turn 25-35 minutes, 2-4 revs/min of rotary drum every time；When solution ph detection 4.0,2-3h is continued to rotate；It later will be in rotary drum
Water temperature is raised to 38-42 degrees Celsius, turns 2-4h；When 80 degrees Celsius of shrinkage temperature of boiling water detection or more, stop rousing standing, since feeding intake
Total 12-24h is finished to standing.
(4) flowing water cleans sturgeon skin in room temperature rotary drum, and drum prepares degreasing out；
8, degreasing
(1) the sturgeon skin weighing that step 7 is handled well；
(2) water of the 400-600% of the sturgeon skin weight of step 8 (1), the high temperature resistant nonionic degreasing agent of 4-6% are weighed；
(3) sturgeon skin and water being put into rotary drum, temperature is set in 60-70 degrees Celsius, it is added degreasing agent, 6-8 revs/min,
Rotation 6-8 hours, 55-60 degrees Celsius of hot water cleaning, drum controls water out；
9, retanning
(1) the sturgeon skin weighing that step 8 is handled well；
(2) water of the 100-200% of 9 (1) sturgeon skin weight is weighed, the acrylic acid of the formic acid of 0.3-0.6%, 2-4% is multiple
Tanning agent, the white tannin of 4-6%, the anion fatting agent of 2-4%, the sodium bicarbonate of 0.5-1%；
(3) sturgeon skin and water are put into rotary drum, temperature is set in 40-48 degrees Celsius, and the formic acid after dilution is added turns 25-
35 minutes；White tannin is added and turns 1-2h；Acrylic acid double tanning agent is added, anion fatting agent turns 1-2h；3-4 equivalent is divided to be added
Sodium bicarbonate after dilution turns 35-45 minutes every time, and the above rotary drum revolving speed is 4-6 revs/min, then stops to rouse, and stands, from throwing
Material starts to the standing end time to amount to 12-24 hours；
(4) stand after, rotate 1h, 4 revs/min；When solution ph detection 4.0,35--40 DEG C water is sufficiently cleaned, out
Drum control water；
10, it neutralizes
(1) the sturgeon skin weighing that step 9 is handled well；
(2) water of the 100-200% of step 10 (1) sturgeon skin weight, the neutralization tannin of 2-4%, the tannin of 2-4% are weighed
Essence, the sodium formate of 1-2%, the sodium bicarbonate of 0.5-1%；
(3) sturgeon skin and water are put into rotary drum, temperature is set in 42-46 degrees Celsius, and neutralization tannin is added and turns 25-35 points
Clock；Tannin essence is added to turn 25-35 minutes；Formic acid is added and receives and turns 25-350 minutes；Sodium bicarbonate average mark 3-4 times after dilution is added
Enter, turn every time 25-35 minutes, the above rotary drum revolving speed is 2-4 revs/min；
(4) terminal: solution ph detects 5.0-6.0；
(5) 40 DEG C water of sturgeon skin is sufficiently cleaned, out drum control water；
11, dyeing and fat-liquoring
(1) the sturgeon skin weighing that step 10 is handled well；
(2) water of the 100-200% of weighing stage 11 (1) sturgeon skin weight, the ox of the phosphatide fatting agent of 4-6%, 1-2%
The formic acid of hoof oil, the waterproof currying agent of 1-2%, the levelling agent of 1-2%, 1-2%, the dyestuff of 1-2%；
(3) sturgeon skin and water are put into rotary drum, temperature is set in 48-52 degrees Celsius, and levelling agent is added and turns 5-15 minutes；Add
Enter dyestuff to turn 35-45 minutes；Neat's foot oil is added to turn 55-65 minutes；Phosphatide fatting agent is added to turn 55-65 minutes；Waterproof is added to add
Rouge agent turns 55-65 minutes；The average mark 2-3 times formic acid being added after dilution, turns 25-35 minutes, the above process rotary drum revolving speed every time
It is 10-12 revs/min；Drain control water, then room temperature is washed in rotary drum, out drum control water；
12, it falls soft
Flesh noodles bone plate is filled up with hot melt adhesive, while sturgeon leather is put on into protective bag, is then charged into and is fallen soft drum to fall soft 3 small
When, 12 revs/min of rotary drum, through falling it is soft after the fiber of sturgeon skin sufficiently open, the behaviour for being conducive to subsequent toggling, covering with paint, lacquer, colour wash, etc. process
Make；13, toggling
14, sand paper polishes
15, high temperature presses
Ironing is using the leather embossing machine after repacking；Leather embossing machine after the repacking, the part of repacking are leather
The heating platen of embossing machine and corresponding bottom plate；The bottom plate is equipped with groove, and the size of groove is slightly larger than the main bone of sturgeon skin
Plate protrusion；The contact surface of the heating platen and leather, is provided with high temperature-resistant felt；
16, the covering with paint that the sturgeon leather that ironing is put in order is carried out to different-style as requested, after the completion of covering with paint, in sturgeon
A waterproofing agent is sprayed again in the front of skin.
In the process described above, it is preferred that the groove length be 100 centimetres, about 5 centimetres of width, depth about 1.5
Centimetre, high temperature-resistant felt is with a thickness of 2cm；When ironing processing, the protrusion of the main bone plate of sturgeon leather is placed in the groove of bottom plate,
The temperature of heating platen is 100 degrees Celsius, and pressure is 200 kg/cms, is pressed the time about 2--3 seconds.
Compared with prior art, the invention has the following advantages that
1, tanned flash of light sturgeon leather is soft, plentiful, bone plate is intact；
2, using completely new technique, it is easy to marketing；
3, very different degreasing agent and degreasing method is selected to carry out different lubricant components in different tanning processes
Degreasing respectively, it is cleaner than sturgeon skin, clean and tidy with conventional method after degreasing, it is easy to subsequent operation；
4, reach 90% or more using the tanned sturgeon leather quality percentage of the present invention, substantially exceed traditional process for tanning
30% yield rate.
5, waterproof, dampproof effect are splendid, through detecting, drip upper water, impermeable time in flash of light sturgeon flesh side of a belt, front
Up to 24 hours or more.
6. the leather environmental protection that processing comes out, free from extraneous odour, only leather smells.
Detailed description of the invention
Fig. 1 is to be filled with the sturgeon skin schematic diagram of hot melt adhesive in bone plate recess.
Fig. 2 is the heating platen of improved leather embossing machine and the structural schematic diagram of bottom plate；
Wherein, 1- felt；2- groove.
Fig. 3 is flash of light sturgeon skin belt leather prepared by the embodiment of the present invention 1.
Fig. 4 is the belt of the flash of light sturgeon leather preparation prepared using embodiment 1.
Specific embodiment
Technical solution of the present invention is if not otherwise specified the ordinary skill in the art；The reagent or material,
If not otherwise specified, commercial channel is derived from.
Embodiment 1:
The sturgeon skin belt that glistens removes from office production method, includes the following steps:
According to the conventional cognitive of this field, sturgeon skin weight of the present invention refers both to be the weight in wet base of sturgeon skin；Each step
On the basis of the percentage additive amount of raw material used in the rapid total weight of sturgeon skin and the fish gill involved in each step.
1, rotary drum immersion, pre- degreasing
(1) material selection: flash of light sturgeon skin, based on the wet salted hide of 6 kilogram weights flash of light sturgeon, 18-22 degree water in rotary drum
Temperature, sufficiently washing sturgeon skin, weigh after washing.
(2) 1% immersion agent (BASF EusaponW) of the flash of light sturgeon skin weight of step (1) acquisition is weighed, 1%
Fungicide (bright Sheng CISMOLLAN AN 90), 2% degreasing agent (fraternal chemical industry H900), 200% water
(3) immersion carries out pre- degreasing to sturgeon skin, mainly removal surface grease, prepares for liming workshop section
Sturgeon skin and water are put into rotary drum, mix up 22 degrees Celsius of temperature value, immersion agent, fungicide, degreasing agent is then added,
Rotary drum is rotated, 2 revs/min of rotary drum revolving speed, turns to stop 45 minutes for 15 minutes, revolving speed cannot be too fast, so as not to it is rubbed between sturgeon skin
Weight destroys the decorative pattern on sturgeon skin surface, and start of calculation to the rotary drum rotation that feeds intake certainly terminates altogether for 24 hours.Then flowing water cleans 20 points in rotary drum
Clock, drum controls water out.
2, liming degreasing
(1) the sturgeon skin weighing that step 1 obtains after cleaning；
(2) the NaHS particle (effective content 70%) of 1.0% of sturgeon skin weight in step 2 (1) is weighed, 8%
Lime, 0.5% auxiliary liming agent (bright Sheng CISMOLLAN BH-C), 2% degreasing agent (fraternal chemical industry H900) 3,300%
Water；(3) ready sturgeon skin and water are put into rotary drum, sets 24 degrees Celsius of temperature, rotate rotary drum, 1 rev/min of revolving speed,
Degreasing agent is added, the NaHS that water has dissolved rotates 30 minutes, and auxiliary liming agent, lime is added, turn to stop 50 minutes for 10 minutes,
2 revs/min of rotary drum revolving speed, the start of calculation that feeds intake certainly is total for 24 hours to the rotary drum rotation end time.
(4) terminal: sturgeon skin expansion is uniform, strong solution ph > 12 of skin body.
(5) wash: rotary drum room temperature flowing water is washed 2 times 10 minutes every time, 2 revs/min.
3, mechanical degreasing, fleshing
(1) upward by sturgeon skin flesh noodles, it is fixed on chopping board, removes grease and the flesh of fish with 80 mesh wire brush hand brushs, due to
Sturgeon skin glisten than relatively thin, dynamics cannot be excessive when brushing, and prevents damage sturgeon skin；
(2) clear water rinses the sturgeon skin after degreasing well.
4, deliming degreasing
(1) step 3 treated sturgeon skin weighing；
(2) 1% ammonium sulfate of step 4 (1) sturgeon skin weight is weighed, 1% degreasing agent (BASF Eusapon OC),
100% water, 0.5% deliming auxiliary agent (BASF)
(3) sturgeon skin and water are put into rotary drum, sets 33 degrees Celsius of temperature, ammonium sulfate, degreasing agent and deliming is added and helps
Agent, turns 30 minutes by 1 rev/min of rotary drum revolving speed；
(4) it washes: rotary drum warm water (33--36 degrees Celsius) sufficiently cleaning 2 times, every time 10 minutes, 2 revs/min.After cleaning,
Fish-skin surface neat and tidy, soft, removal is clean substantially for surface solid grease.
5, soften
(1) the sturgeon skin weighing that step 4 is handled well；
(2) 100% water of the sturgeon skin weight of step 5 (1), 0.5% pancreatin, 0.5% ammonium sulfate are weighed；
(3) will glisten sturgeon skin and water investment rotary drum, set water temperature 36 degrees Celsius, pancreatin and ammonium sulfate, rotary drum is added
It 1 rev/min of revolving speed, rotates 30 minutes；
(4) terminal: grain is smooth, pure white, and finger pressure has fingerprint, the flexible consolidation of skin body
(5) wash: 35-37 degrees Celsius of warm water is sufficiently washed 10 minutes in rotary drum, and 20-24 degrees Celsius of room temperature is washed 10 points
Clock, 1 rev/min of rotary drum.
6, pickling
(1) the sturgeon skin weighing that step 5 is handled well；
(2) 100% water of the sturgeon skin weight of step 6 (1), 16% salt, 2% acetic acid, 1% dense sulphur are weighed
Acid, 2% nonionic degreasing agent (BASF Eusapon OE)；
(3) sturgeon skin and water are put into rotary drum, sets 21 degrees Celsius of temperature, salt is added, rotate rotary drum, 1 rev/min
Clock rotates 30 minutes, degreasing agent is added, (acetic acid is dilute by the water of its 10 times of weight for the acetic acid after the dilution of equivalent is added in two portions
Release), turn 30 minutes every time, turn 2 revs/min, then (water by 10 times of weight is dilute for the average mark 4 times concentrated sulfuric acids being added after dilution
Release), turn 30 minutes every time, then 2 revs/min of revolving speed stops to rouse standing, amount to for 24 hours since feeding intake to the standing end time；
(4) terminal: surface is astringent, and skin body is flexible, consolidation, solution ph 2.5；
(5) degreasing: taking out sturgeon skin under sour skin state, removes solid fat (method is with 3) again on dry panel,
It is put into former pickling liquid again after sturgeon skin weighing；
7, tanning
(1) 2% modified glutaraldehyde of the sturgeon skin weight of step 6 is weighed, 1.5% aluminium tanningagent, 10% white tannin,
10% white tannin extract, 1% formic acid are received, 1.5% sodium bicarbonate, 1% mould inhibitor；
(2) it operates
It is carried out in former pickling liquid, sets 24 degrees Celsius of temperature, be added modified glutaraldehyde (dilution of weight ratio 1:5 water),
Rotate 1h, 2 revs/min；Aluminium tanningagent is added, turns 1h, 2 revs/min of rotary drum；It is added white tannin, white tannin extract turns 2h, and 2 revs/min,
Stop rousing standing, be finished altogether for 24 hours since feeding intake to standing.
(3) formic acid being added to receive, mould inhibitor turns 1h, and 2 revs/min；Divide 8 equivalent that sodium bicarbonate (20 times of weights after dilution are added
Measure the 35 DEG C waters dissolution of part), turn 30 minutes, 2 revs/min of rotary drum every time；When solution ph detection 4.0,2h is continued to rotate；
The water temperature in rotary drum is raised to 40 degrees Celsius later, turns 2h；When 80 degrees Celsius of shrinkage temperature of boiling water detection or more, stop rousing standing,
It is finished altogether for 24 hours since feeding intake to standing.
(4) 2 revs/min of revolving speed, flowing water cleans 20 minutes in room temperature rotary drum, and drum prepares degreasing out；
8, degreasing
Due to the particularity of sturgeon leather, it is different from common leather, grease is difficult once to purify, so this step is closed very much
Key is done well, and the quality of end product is seriously affected.
(1) the sturgeon skin weighing that step 7 is handled well；
(2) 400% water of the sturgeon skin weight of step 8 (1), 4% high temperature resistant nonionic degreasing agent (BASF are weighed
EusaponOC, fraternal chemical industry H901,1:1 ratio mixing)；
(3) sturgeon skin and water are put into rotary drum, temperature is set in 65 degrees Celsius, and degreasing agent is added, 6 revs/min, rotates 6
Hour, 55-60 degrees Celsius of hot water cleans 2 times, and 10 minutes every time, drum controlled water out.
Sturgeon leather after degreasing, in uniform light blue white, leather fiber is fully opened, and finger pressure has fluffy sense, sturgeon
Natural oil in leather removes completely substantially, and skin is strong, and without rotten skin, surface cleaning, in addition to leather smells, no other are pungent taste
Road.Sturgeon leather is sent to SGS mechanism and is detected, and detection is based on European chemical balance motion administration cut-off public affairs on December 17th, 2015
High concern substance candidate list (according to No. 1907/2006 REACH regulation of European Union) for authorization review of cloth, to 168 kinds of height
Concern substance (SVHC) carries out screening test, while detecting to lead content, and detection content and result are as follows:
According to specific test scope and analytical technology, the high concern material concentration tested in sample is entrusted to be both less than
The testing result of 0.1% lead is as follows:
Remarks:
(1) 1mg/kg=0.0001%
(2) MDL=method detection limit
(3) (< MDL) is not detected in ND=
(4) "-"=do not provide
Lead (Pb)
Test method: it is measured referring to US EPA method 3052:1996, analysis is carried out using ICP-OES
9, retanning
(1) the sturgeon skin weighing that step 8 is handled well；
(2) 100% water of 9 (1) sturgeon skin weight is weighed, 0.3% formic acid, 2% acrylic acid double tanning agent, 4%
Bai Danning, 2% anion fatting agent, 0.5% sodium bicarbonate；
(3) sturgeon skin and water are put into rotary drum, temperature is set in 44 degrees Celsius, formic acid (the 1:10 times of water after dilution is added
Dilution, weight ratio), turn 30 minutes；White tannin is added and turns 2h；Acrylic acid double tanning agent is added, anion fatting agent turns 2h；Divide 4 times
The sodium bicarbonate (weight ratio 1:20 times water dilution) after dilution is added in equivalent, turns 40 minutes every time, and the above rotary drum revolving speed is 4 turns/
Minute, then stop to rouse, stand, is amounted to 24 hours since feeding intake to the standing end time；
(4) stand after, rotate 1h, 4 revs/min；When solution ph detection 4.0,35--40 DEG C water sufficiently cleans 2
Secondary, 10 minutes every time, drum controlled water out；
10, it neutralizes
(1) the sturgeon skin weighing that step 9 is handled well；
(2) 100% water of step 10 (1) sturgeon skin weight, 2% neutralization tannin, 2% tannin essence (PAK- are weighed
The bright Sheng of N-C), 1% sodium formate, 0.5% sodium bicarbonate；
(3) sturgeon skin and water are put into rotary drum, temperature is set in 44 degrees Celsius, is added and neutralizes tannin turn 30 minutes；It is added
Tannin essence turns 30 minutes；Formic acid is added and receives and turns 30 minutes；By sodium bicarbonate (1:20 times of water dilution of weight ratio) average mark 3 after dilution
Secondary addition turns 30 minutes every time, and the above rotary drum revolving speed is 2 revs/min；
(4) terminal: solution ph detection 5.5；
(5) 40 DEG C water of sturgeon skin is sufficiently cleaned 2 times, 10 minutes every time, is roused out, controls water for 24 hours naturally, is next procedure
It prepares.
11, dyeing and fat-liquoring
(1) the sturgeon skin weighing that step 10 is handled well；
(2) 100% water of weighing stage 11 (1) sturgeon skin weight, 4% phosphatide fatting agent, 2% neat's foot oil (brother
Younger brother's chemical industry), 1% waterproof currying agent (U.S. 3M), 1% levelling agent (BASF FR-DE), 1% formic acid, 1% dyestuff；
(3) sturgeon skin and water are put into rotary drum, temperature is set in 50 degrees Celsius, and levelling agent is added and turns 10 minutes；Dye is added
Material turns 40 minutes；Neat's foot oil is added to turn 60 minutes；Phosphatide fatting agent is added to turn 60 minutes；Waterproof currying agent is added to turn 60 minutes；
Formic acid (1:10 times of water dilution of weight ratio) after dilution is averagely added in two portions, turns 30 minutes, the above process rotary drum revolving speed every time
It is 10 revs/min；Drain control water, then twice, 10 minutes every time, drum was piled up out for room temperature washing in rotary drum, and control water is for 24 hours.
12, it falls soft
(flesh noodles) is empty on the inside of main bone plate among sturgeon leather after tanning degreasing, directly fall it is soft be easy to by
Bone plate is broken, and is filled up flesh noodles bone plate (Fig. 1) with hot melt adhesive, while sturgeon leather is put on protective bag, be then charged into fall it is soft
Drum falls soft 3 hours, 12 revs/min of rotary drum, through falling it is soft after the fiber of sturgeon skin sufficiently open, be conducive to subsequent toggling, covering with paint
The operation of process；
13, toggling
14,1000 mesh Germany import warrier's sand paper polish
15, high temperature presses
The ironing of sturgeon leather is indispensable link during sturgeon leather finish, and ironing is using the leather pressure after repacking
Flower machine (RG-SY)；
Leather embossing machine after the repacking, the part of repacking are the heating platen and corresponding bottom plate of leather embossing machine；
The bottom plate is equipped with groove, and the size of groove is raised slightly larger than the main bone plate of sturgeon skin；The heating platen and leather
Contact surface is provided with high temperature-resistant felt, thickness felt 2cm；
Groove length be 100 centimetres, about 5 centimetres of width, about 1.5 centimetres of depth, with the main bone plate width in sturgeon leather back
It is almost the same.
When ironing processing, the protrusion of the main bone plate of sturgeon leather is placed in the groove of bottom plate, the temperature of heating platen is 100
Degree Celsius, pressure is 200 kg/cms, is pressed the time about 2--3 seconds.
16, the covering with paint that the sturgeon leather that ironing is put in order is carried out to different-style as requested, such as bloom, dumb light, cloudy surface
Deng after the completion of covering with paint, spraying a waterproofing agent again in the front of sturgeon skin, reinforce waterproof, the dampproof effect of flash of light sturgeon leather.
Flash of light sturgeon leather water-proof, dampproof effect after the processing of above-mentioned technique is splendid, through detecting, in flash of light sturgeon skin
Remove from office flesh noodles, upper water is dripped in front, the impermeable time, tanned flash of light sturgeon leather was soft, plentiful, bone up to 24 hours or more
Plate is intact (Fig. 3)；Leather quality percentage reaches 90% or more, substantially exceeds the yield rate of traditional process for tanning 30%.It can
The strict demand for sufficiently meeting luxury goods belt, watchband production has very high market economy value.It is made using the above method
Leather preparation belt it is as shown in Figure 4.
Claims (2)
1. the sturgeon skin belt that glistens removes from office production method, include the following steps:
1, rotary drum immersion, pre- degreasing
(1) material selection: flash of light sturgeon skin is sufficiently washed, and is weighed after washing；
(2) the immersion agent of the 1-1.5% of the flash of light sturgeon skin weight of step (1) acquisition is weighed, the fungicide of 1-2%, 2-4%'s is de-
Rouge agent, the water of 200-300%；
(3) soak: sturgeon skin and water being put into rotary drum, mix up 20-22 degrees Celsius of temperature value, be then added immersion agent, fungicide,
Degreasing agent rotates rotary drum, and 2-4 revs/min of rotary drum revolving speed turns to stop within 10-20 minutes 40-50 minutes, turns certainly feeding intake to start to rotary drum
Dynamic to terminate total 12-24h, then flowing water cleans in rotary drum, out drum control water；
2, liming degreasing
(1) the sturgeon skin weighing that step 1 obtains after cleaning；
(2) weigh step 2(1) in sturgeon skin weight 1.0-2.0% NaHS particle (effective content 60-80%), 8-12%
Lime, the auxiliary liming agent of 0.5-1%, the degreasing agent of 2-4%, the water of 300-400%；
(3) ready sturgeon skin and water being put into rotary drum, sets 22-24 degrees Celsius of temperature, rotate rotary drum, revolving speed 1-3 turns/
Minute, degreasing agent is added, the NaHS that water has dissolved rotates 25-35 minutes；Auxiliary liming agent, lime is added, turns 5-15 minutes
Stop 45-55 minutes, 2-4 revs/min of rotary drum revolving speed, the start of calculation that feeds intake certainly terminates to be 12-24h to rotary drum rotation；
(4) terminal: sturgeon skin expansion is uniform, strong solution ph > 12 of skin body；
(5) it washes: the washing of rotary drum room temperature flowing water；
3, mechanical degreasing, fleshing
(1) upward by sturgeon skin flesh noodles, brush grease and the flesh of fish with wire brush；
(2) clear water rinses the sturgeon skin after degreasing well；
4, deliming degreasing
(1) step 3 treated sturgeon skin weighing；
(2) step 4(1 is weighed) ammonium sulfate of the 1-2% of sturgeon skin weight, the degreasing agent of 1-2%, the water of 100-200%, 0.5-1%
Deliming auxiliary agent；
(3) sturgeon skin and water are put into rotary drum, sets 33-36 degrees Celsius of temperature, ammonium sulfate, degreasing agent and deliming is added and helps
Agent, 1-3 revs/min of rotary drum revolving speed turn 20-30 minutes；
(4) wash: 33--36 DEG C water is sufficiently cleaned；
5, soften
(1) the sturgeon skin weighing that step 4 is handled well；
(2) weigh step 5(1) sturgeon skin weight 100-200% water, the pancreatin of 0.5-1%, the ammonium sulfate of 0.5-1%；
(3) will glisten sturgeon skin and water investment rotary drum, set 35-37 degrees Celsius of water temperature, pancreatin and ammonium sulfate is added, rotary drum turns
It fast 1-3 revs/min, rotates 20-30 minutes；
(4) terminal: grain is smooth, pure white, and finger pressure has fingerprint, the flexible consolidation of skin body
(5) wash: 35-37 degrees Celsius of warm water is sufficiently washed in rotary drum；
6, pickling
(1) the sturgeon skin weighing that step 5 is handled well；
(2) weigh step 6(1) sturgeon skin weight 100-200% water, the salt of 10-16%, the acetic acid of 2-4%, 1-3%'s
The concentrated sulfuric acid, the nonionic degreasing agent of 2-4%；
(3) sturgeon skin and water are put into rotary drum, sets 20-24 degrees Celsius of temperature, salt is added, rotate rotary drum, 1-3 revs/min
Clock rotates 20-30 minutes；Degreasing agent is added, divides 2-3 that the acetic acid after the dilution of equivalent is added, turns every time 20-30 minutes, turn 2-4
Rev/min；Then the average mark 4-6 times concentrated sulfuric acid being added after dilution, turns 20-30 minutes every time, and 2-4 revs/min of revolving speed, so
After stop rouse standing, since feeding intake to stand the end time amount to 12-24h；
(4) terminal: surface is astringent, and skin body is flexible, consolidation, solution ph 2.0-3.0；
(5) degreasing: taking out sturgeon skin under sour skin state, mechanical degreasing is put into former pickling liquid again after sturgeon skin weighing；
7, tanning
(1) modified glutaraldehyde of the 2-4% of the sturgeon skin weight of step 6, the aluminium tanningagent of 1.5-3%, the white pellet of 10-12% are weighed
Rather, the white tannin extract of 10-12%, the formic acid of 1-2% are received, the sodium bicarbonate of 1.5-2.5%, the mould inhibitor of 1-2%；
(2) it operates
It is carried out in former pickling liquid, sets 22-24 degrees Celsius of temperature, the modified glutaraldehyde after dilution is added rotates 1-2h, 2-
4 revs/min；Aluminium tanningagent is added, turns 1-2h, 2-4 revs/min of rotary drum；It is added white tannin, white tannin extract turns 1-2h, and 2-4 revs/min
Since clock stop rousing standing, finish total 12-24h to standing feeding intake；
(3) formic acid being added to receive, mould inhibitor turns 1-2h, and 2-4 revs/min；Divide 5-8 equivalent that the sodium bicarbonate after dilution is added, every time
Turn 25-35 minutes, 2-4 revs/min of rotary drum；When solution ph detection 4.0,2-3h is continued to rotate；Later by the water temperature in rotary drum
It is raised to 38-42 degrees Celsius, turns 2-4h；When 80 degrees Celsius of shrinkage temperature of boiling water detection or more, stop rousing standing, to quiet since feeding intake
It sets and finishes total 12-24h；
(4) flowing water cleans sturgeon skin in room temperature rotary drum, and drum prepares degreasing out；
8, degreasing
(1) the sturgeon skin weighing that step 7 is handled well；
(2) weigh step 8(1) sturgeon skin weight 400-600% water, the high temperature resistant nonionic degreasing agent of 4-6%；
(3) sturgeon skin and water are put into rotary drum, temperature is set in 60-70 degrees Celsius, and degreasing agent is added, 6-8 revs/min, rotates
6-8 hours, 55-60 degrees Celsius of hot water cleaning, drum controlled water out；
9, retanning
(1) the sturgeon skin weighing that step 8 is handled well；
(2) 9(1 is weighed) water of the 100-200% of sturgeon skin weight, the formic acid of 0.3-0.6%, the acrylic acid double tanning agent of 2-4%, 4-
6% white tannin, the anion fatting agent of 2-4%, the sodium bicarbonate of 0.5-1%；
(3) sturgeon skin and water are put into rotary drum, temperature is set in 40-48 degrees Celsius, and the formic acid after dilution is added turns 25-35 points
Clock；White tannin is added and turns 1-2h；Acrylic acid double tanning agent is added, anion fatting agent turns 1-2h；Divide 3-4 equivalent that dilution is added
Sodium bicarbonate afterwards turns 35-45 minutes every time, and the above rotary drum revolving speed is 4-6 revs/min, then stops to rouse, and stands, from feeding intake out
Begin to the standing end time to amount to 12-24 hours；
(4) stand after, rotate 1h, 4 revs/min；When solution ph detection 4.0,35--40 DEG C water is sufficiently cleaned, out drum control
Water；
10, it neutralizes
(1) the sturgeon skin weighing that step 9 is handled well；
(2) step 10(1 is weighed) water of the 100-200% of sturgeon skin weight, the neutralization tannin of 2-4%, the tannin essence of 2-4%, 1-2%
Sodium formate, the sodium bicarbonate of 0.5-1%；
(3) sturgeon skin and water are put into rotary drum, temperature is set in 42-46 degrees Celsius, and neutralization tannin is added and turns 25-35 minutes；Add
Enter tannin essence to turn 25-35 minutes；Formic acid is added and receives and turns 25-350 minutes；By sodium bicarbonate average mark 3-4 times addition after dilution, often
Secondary to turn 25-35 minutes, the above rotary drum revolving speed is 2-4 revs/min；
(4) terminal: solution ph detects 5.0-6.0；
(5) 40 DEG C water of sturgeon skin is sufficiently cleaned, out drum control water；
11, dyeing and fat-liquoring
(1) the sturgeon skin weighing that step 10 is handled well；
(2) weighing stage 11(1) sturgeon skin weight 100-200% water, the phosphatide fatting agent of 4-6%, 1-2% neat's foot oil,
The waterproof currying agent of 1-2%, the levelling agent of 1-2%, 1-2% formic acid, the dyestuff of 1-2%；
(3) sturgeon skin and water are put into rotary drum, temperature is set in 48-52 degrees Celsius, and levelling agent is added and turns 5-15 minutes；Dye is added
Material turns 35-45 minutes；Neat's foot oil is added to turn 55-65 minutes；Phosphatide fatting agent is added to turn 55-65 minutes；Waterproof currying agent is added
Turn 55-65 minutes；The average mark 2-3 times formic acid being added after dilution, turns 25-35 minutes, the above process rotary drum revolving speed is every time
10-12 revs/min；Drain control water, then room temperature is washed in rotary drum, out drum control water；
12, it falls soft
Flesh noodles bone plate is filled up with hot melt adhesive, while sturgeon leather is put on into protective bag, is then charged into and is fallen soft drum and fall soft 3 hours,
12 revs/min of rotary drum, through falling it is soft after the fiber of sturgeon skin sufficiently open, the operation for being conducive to subsequent toggling, covering with paint, lacquer, colour wash, etc. process；
13, toggling
14, sand paper polishes
15, high temperature presses
Ironing is using the leather embossing machine after repacking；Leather embossing machine after the repacking, the part of repacking are leather embossing
The heating platen of machine and corresponding bottom plate；The bottom plate is equipped with groove, and the size of groove is convex slightly larger than the main bone plate of sturgeon skin
It rises；The contact surface of the heating platen and leather, is provided with high temperature-resistant felt；
16, the covering with paint that the sturgeon leather that ironing is put in order is carried out to different-style as requested, after the completion of covering with paint, in sturgeon skin
A waterproofing agent is sprayed again in front.
2. according to the method described in claim 1, it is characterized by: the groove length be 100 centimetres, about 5 centimetres of width,
About 1.5 centimetres of depth, high temperature-resistant felt is with a thickness of 2cm；When ironing processing, the protrusion of the main bone plate of sturgeon leather is placed in bottom
The groove of plate, the temperature of heating platen are 100 degrees Celsius, and pressure is 200 kg/cms, are pressed the time about 2--3 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811506843.3A CN109576409B (en) | 2018-12-10 | 2018-12-10 | Method for making glittering sturgeon skin leather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811506843.3A CN109576409B (en) | 2018-12-10 | 2018-12-10 | Method for making glittering sturgeon skin leather |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109576409A true CN109576409A (en) | 2019-04-05 |
| CN109576409B CN109576409B (en) | 2021-07-23 |
Family
ID=65929393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811506843.3A Active CN109576409B (en) | 2018-12-10 | 2018-12-10 | Method for making glittering sturgeon skin leather |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109576409B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656209A (en) * | 2019-09-27 | 2020-01-07 | 四川大学 | Method for making leather from sturgeon skin |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199675A (en) * | 2011-04-12 | 2011-09-28 | 王学川 | Clean process for producing leather by using sturgeon skin |
| CN102199676A (en) * | 2011-04-12 | 2011-09-28 | 王学川 | Sturgeon skin chrome tanning leather production process |
| CN102796832A (en) * | 2012-08-30 | 2012-11-28 | 陕西科技大学 | Production process for leather for painting |
-
2018
- 2018-12-10 CN CN201811506843.3A patent/CN109576409B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199675A (en) * | 2011-04-12 | 2011-09-28 | 王学川 | Clean process for producing leather by using sturgeon skin |
| CN102199676A (en) * | 2011-04-12 | 2011-09-28 | 王学川 | Sturgeon skin chrome tanning leather production process |
| CN102796832A (en) * | 2012-08-30 | 2012-11-28 | 陕西科技大学 | Production process for leather for painting |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656209A (en) * | 2019-09-27 | 2020-01-07 | 四川大学 | Method for making leather from sturgeon skin |
| CN110656209B (en) * | 2019-09-27 | 2021-01-19 | 四川大学 | Method for making leather from sturgeon skin |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109576409B (en) | 2021-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102839236B (en) | Dual-purpose modification process for native breed sheepskin leather | |
| CN103290149B (en) | Process for making goat upper leather | |
| CN104789714B (en) | A kind of Sheep Skin Upper Leather manufacture craft | |
| CN104774980A (en) | Goat instep leather manufacturing technology | |
| CN108165678A (en) | A kind of production method of suede | |
| CN103397116B (en) | Tanning method of Tan sheep fur | |
| CN104593527A (en) | Crocodile belly skin tanning processing method | |
| CN105925733A (en) | Tanning and dyeing technique of mink skin with functions as fur and leather | |
| CN103805721A (en) | Preparation method for half-vegetable tanning knurled soft leather | |
| CN109576409A (en) | The sturgeon skin belt that glistens removes from office production method | |
| JPH0152440B2 (en) | ||
| CN1213151C (en) | Tanning method for fish skin and after finishing method for fish skin leather | |
| JP4926138B2 (en) | Split leather for automobile sheets and manufacturing method thereof | |
| CN110004254A (en) | The soft correction processing method of the sturgeon skin of acipenser dabryanus and mandarin sturgeon | |
| CN112376297B (en) | Waterproof agent, dyeing agent and environment-friendly dyeing process for chrome-free tanned sheep-cut napped leather | |
| CN1017259B (en) | Process for preparation of goose down powder puff and fur | |
| CN106191336B (en) | A method of for improving leather yield of leather | |
| Flemming | Practical Tanning: A Handbook of Modern Processes, Receipts, and Suggestions for the Treatment of Hides, Skins, and Pelts of Every Description-Including Various Patents Relating to Tanning, with Specifications | |
| CN109576407B (en) | Preparation method of huso dauricus sturgeon skin luggage leather | |
| CN109576410A (en) | A kind of Acipenser gueldenstaedti Brandt fishskin leather processing method | |
| CN109439810B (en) | Process for preparing high-grade sheep garment fur leather by using chromium-free multi-metal tanning agent | |
| CN116516079B (en) | Method for preparing blue wet leather by using puffer fish skin to preserve scales | |
| CN109576408A (en) | A kind of leather processing method of acipenser schrencki and hybridization sturgeon | |
| CN105274261B (en) | Crocodile back leather processing method | |
| KR100445639B1 (en) | Method for producing washable dyed leather |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |