CN104789717B - Process for processing cattle hide upper leather by adopting nano-composite leather wet finishing auxiliary - Google Patents
Process for processing cattle hide upper leather by adopting nano-composite leather wet finishing auxiliary Download PDFInfo
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- CN104789717B CN104789717B CN201510138887.5A CN201510138887A CN104789717B CN 104789717 B CN104789717 B CN 104789717B CN 201510138887 A CN201510138887 A CN 201510138887A CN 104789717 B CN104789717 B CN 104789717B
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- wet blue
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- 239000010985 leather Substances 0.000 title claims abstract description 114
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000012545 processing Methods 0.000 title claims abstract description 13
- 241000283690 Bos taurus Species 0.000 title abstract description 11
- 239000002114 nanocomposite Substances 0.000 title abstract 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 128
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims abstract description 38
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims abstract description 19
- 235000019253 formic acid Nutrition 0.000 claims abstract description 19
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 13
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 13
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims abstract description 8
- 235000018553 tannin Nutrition 0.000 claims abstract description 8
- 229920001864 tannin Polymers 0.000 claims abstract description 8
- 239000001648 tannin Substances 0.000 claims abstract description 8
- 238000005406 washing Methods 0.000 claims abstract description 7
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims abstract description 4
- 235000017557 sodium bicarbonate Nutrition 0.000 claims abstract description 4
- 239000012752 auxiliary agent Substances 0.000 claims description 26
- 238000010790 dilution Methods 0.000 claims description 18
- 239000012895 dilution Substances 0.000 claims description 18
- 239000000975 dye Substances 0.000 claims description 13
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 claims description 12
- 239000003792 electrolyte Substances 0.000 claims description 12
- 229940067606 lecithin Drugs 0.000 claims description 12
- 235000010445 lecithin Nutrition 0.000 claims description 12
- 239000000787 lecithin Substances 0.000 claims description 12
- 150000002989 phenols Chemical class 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 15
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 8
- 239000002351 wastewater Substances 0.000 abstract description 5
- 229920000178 Acrylic resin Polymers 0.000 abstract 1
- 229920000877 Melamine resin Polymers 0.000 abstract 1
- 239000004640 Melamine resin Substances 0.000 abstract 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 1
- 230000003472 neutralizing effect Effects 0.000 abstract 1
- 238000007792 addition Methods 0.000 description 5
- 102000008186 Collagen Human genes 0.000 description 4
- 108010035532 Collagen Proteins 0.000 description 4
- 229920001436 collagen Polymers 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 3
- 238000002835 absorbance Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000006210 lotion Substances 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 210000001638 cerebellum Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910001430 chromium ion Inorganic materials 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910003471 inorganic composite material Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- C14C11/00—Surface finishing of leather
Abstract
The invention relates to a process for processing cattle hide upper leather by adopting a nano-composite leather wet finishing auxiliary. The materials for improving fat liquor, dye and a retanning agent have been developed by the leather wet finishing, but application of the wet finishing auxiliary prepared by the nanotechnology to the aspect of leather wet finishing is less reported. The process comprises the following steps: neutralizing and shaving wet blue leather by utilizing neutralisation tannin and baking soda, and then adding water, sulphonated fat-liquor, the nano-composite leather wet finishing auxiliary and a small acrylic resin tanning agent for rotation; adding a melamine resin tanning agent, a white synthetic tanning agent, a phenol synthetic tanning agent, a dicyandiamide resin tanning agent, a tannin extract, the nano-composite leather wet finishing auxiliary and the dye for rotation; fixing with formic acid and then filling fat, then fixing again, and washing with water. The process adopts the nano-composite leather wet finishing auxiliary to process the cattle hide upper leather, so that the absorptivity of the retanning agent, the dye and the fat liquor can be effectively improved, the use of retanning filling materials is reduced, the organic content and chroma of wastewater are reduced, and the binding strength of a chrome tanning agent in leather is improved.
Description
Technical field
The invention belongs to leather processing processing technology field, and in particular to a kind of to adopt the wet ornamenting auxiliary agent of nano combined process hides
The technique of processing cow leather upper leather.
Background technology
China is leatherware production and consumption big country, and leatherware yield, outlet are occupied first place in the world with absolute advantagess.
Divide from resultant Leather purposes, upper leather is 35%, and for upper leather, bovine cerebellum accounts for the 65% of upper leather, in being upper leather
Major product.
In the course of processing of leather, three big workshop sections are broadly divided into, ornamenting work after beam house, tanning process and tan before tan
Section.After tan in finishing workshop section, wet ornamenting and dry ornamenting Liang great workshop sections are broadly divided into.In wet finishing workshop section, master operation is
The operations such as retanning, dyeing and stuffing, the respective material for using are retanning agent, dyestuff and fatting agent respectively.Wet ornamenting is called skin
" Golden Touch " produced is removed from office into, however, in wet finishing workshop section, due to infiltration and the contradiction for combining presence of various materials, adding
Chemical material absorbance in body lotion is limited, causes remaining unabsorbed retanning agent, dyestuff and fatting agent in waste liquid, this
The wasting of resources is not only caused, the degree of difficulty of wastewater treatment is further increased, also be there is potential hazard to environment.Therefore, how to improve
The absorption efficiency of retanning agent, dyestuff and fatting agent is day by day taken seriously.At present, the technical field has been developed for improving stuffing
Agent, dyestuff, the material of retanning agent, but, by dressing auxiliary agent prepared by nanotechnology be applied in terms of leather dressing also
It is rarely reported.
The content of the invention
It is an object of the invention to provide a kind of technique using the wet ornamenting auxiliary agent processing cow leather upper leather of nano combined process hides,
Effectively reduce the remnants of dressing material in leather-making waste water.
The technical solution adopted in the present invention is：
Using the technique of the wet ornamenting auxiliary agent processing cow leather upper leather of nano combined process hides, it is characterised in that：
Realized by following steps：
The wet blue leather of shaving is weighed, and as measurement basis, is put into rotary drum, carries out following operation；
（1）Neutralization：
At 30 DEG C, add shaving wet blue leather weigh 150% water, 2.0% neutralization tannin, the sodium bicarbonate of 0.3%-1.0%, turn 30
Minute；
Control pH4.5-5.5, discharge opeing add shaving wet blue leather to weigh 200% water, rotate 10 minutes, draining；
（2）Retanning：
At 30 DEG C, add shaving wet blue leather weigh 50% water, 1.0% sulphonated fat-liquoring agent, the nano combined system of 1.0%-2.0%
Remove from office wet ornamenting auxiliary agent, 5.0% little acrylate resin tanning agent to rotate 90 minutes；
Add shaving wet blue leather weigh 4.0% melmac tanning agent, 4.0% white synthetic tanning agent, 4.0% phenol
Class syntans, 3% dicyandiamide resin tanning agent, 4% tannic extract, the wet ornamenting auxiliary agent of nano combined process hides of 1.0%-2.0%, 2%
Dyestuff is rotated 90 minutes；
The water that shaving wet blue leather weighs 100%, 50 DEG C is added, is rotated 10 minutes；
（3）It is fixed：
At 50 DEG C, the formic acid that shaving wet blue leather weighs 0.5% is weighed, 1 is pressed with water:10 volume dilution, adds rotary drum, rotates
20 minutes；
The formic acid of shaving wet blue leather weight 0.5%-1.5% is weighed again, presses 1 with water:10 volume dilution, adds rotary drum, rotates
30 minutes, control pH4.0-5.0, discharge opeing；
（4）Stuffing：
At 55 DEG C, add shaving wet blue leather to weigh 150% water, 2.0% soft bubble and feel fatting agent, 2.0% lecithin stuffing
Agent, 2.0% sulphonated fat-liquoring agent, 1.0% Kind of Electrolyte-resistant Fatliquoring Agent, rotate 90 minutes；
（5）It is fixed：
The formic acid of shaving wet blue leather weight 1.5-2.0% at 30 DEG C, is weighed, and 1 is pressed with water:10 volume dilution, point 3 additions
Rotary drum, is rotated 20 minutes every time, controls pH：3.5-4.0.Discharge opeing；
（6）Washing：
At 30 DEG C, add shaving wet blue leather to weigh 300% water, rotate 10 minutes, discharge opeing goes out drum.
In retanning step：
The sulphonated fat-liquoring agent is selected up to the happy HF of prestige；
The little acrylate resin tanning agent selects Da Weitan RF15；
The white synthetic tanning agent selects Da Weitan DL57；
The syntans selects Da Weitan AN58；
The dicyandiamide resin tanning agent selects Lanxess Corporation R7.
In fatliquoring steps：
The soft bubble sense fatting agent is selected up to the happy FS-80 of prestige；
The lecithin fatting agent is selected up to the happy FS-90 of prestige；
The sulphonated fat-liquoring agent is selected up to the happy HF of prestige；
The Kind of Electrolyte-resistant Fatliquoring Agent is selected up to the happy GHL of prestige.
The present invention has advantages below：
The present invention using nano combined process hides wet ornamenting auxiliary agent processing cow leather upper leather, the wet ornamenting auxiliary agent of nano combined process hides
It is a kind of organic/inorganic composite material based on high molecular polymer/nano material, which is structurally characterized in that with inorganic nano level material
Expect for carrier, with the high molecular polymer rich in various active functional group as basic component unit.It is applied to the wet of leather
In arranging process, the absorbance of retanning agent, dyestuff and fatting agent can be effectively improved.The utilization of resource is not only increased, is also subtracted
The remnants of dressing material in little leather-making waste water, effectively reduce cost for wastewater treatment, mitigate the pollution to environment.Operation letter
It is single, the use of retanning packing material can be reduced.Reduce content of organics and colourity in waste water.Improve chrome tanning agent knot in the leather
Fastness is closed, the eluting rate of chromium is reduced.Improve the crust leather grain degree of packing, gained crust leather grain burst apart height ratio do not use the auxiliary agent to carry
It is high by 12.5%.Furthermore it is possible to improve the dyeing uniformity of crust leather.
Specific embodiment
With reference to specific embodiment, the present invention will be described in detail.
Nano material with property is obtained nano combined material by being combined with high-molecular organic material
Material, makes these materials dispersed and is securely fixed between leather fiber, can reach good tanning purpose.As chrome tanning
When pretanning agent, the hydrothermal stability of collagen can not only be improved, additionally it is possible to effectively absorb the chromium ion in body lotion, reduce
The pollution that chrome tanning brings.The nano combined process hides prepared by nanotechnology wet ornamenting auxiliary agent is applied to leather making process by the present invention
Wet finishing process in, collagen is modified, increase collagen reactivity point, increase collagen to retanning agent, dye
The absorption of material and fatting agent, realizes that the pollution of the efficient utilization and environment of resource is reduced, promotes the sound development of leather industry.
Technique using the wet ornamenting auxiliary agent processing cow leather upper leather of nano combined process hides according to the present invention, by following steps
Realize：
The wet blue leather of shaving is weighed, and as measurement basis, is put into rotary drum, carries out following operation；
（1）Neutralization：
At 30 DEG C, add shaving wet blue leather weigh 150% water, 2.0% neutralization tannin, the sodium bicarbonate of 0.3%-1.0%, turn 30
Minute；
Control pH4.5-5.5, discharge opeing add shaving wet blue leather to weigh 200% water, rotate 10 minutes, draining；
（2）Retanning：
At 30 DEG C, add shaving wet blue leather weigh 50% water, 1.0% sulphonated fat-liquoring agent, the nano combined system of 1.0%-2.0%
Remove from office wet ornamenting auxiliary agent, 5.0% little acrylate resin tanning agent to rotate 90 minutes；
Add shaving wet blue leather weigh 4.0% melmac tanning agent, 4.0% white synthetic tanning agent, 4.0% phenol
Class syntans, 3% dicyandiamide resin tanning agent, 4% tannic extract, the wet ornamenting auxiliary agent of nano combined process hides of 1.0%-2.0%, 2%
Dyestuff is rotated 90 minutes；
The water that shaving wet blue leather weighs 100%, 50 DEG C is added, is rotated 10 minutes；
（3）It is fixed：
At 50 DEG C, the formic acid that shaving wet blue leather weighs 0.5% is weighed, 1 is pressed with water:10 volume dilution, adds rotary drum, rotates
20 minutes；
The formic acid of shaving wet blue leather weight 0.5%-1.5% is weighed again, presses 1 with water:10 volume dilution, adds rotary drum, rotates
30 minutes, control pH4.0-5.0, discharge opeing；
（4）Stuffing：
At 55 DEG C, add shaving wet blue leather to weigh 150% water, 2.0% soft bubble and feel fatting agent, 2.0% lecithin stuffing
Agent, 2.0% sulphonated fat-liquoring agent, 1.0% Kind of Electrolyte-resistant Fatliquoring Agent, rotate 90 minutes；
（5）It is fixed：
The formic acid of shaving wet blue leather weight 1.5-2.0% at 30 DEG C, is weighed, and 1 is pressed with water:10 volume dilution, point 3 additions
Rotary drum, is rotated 20 minutes every time, controls pH：3.5-4.0.Discharge opeing；
（6）Washing：
At 30 DEG C, add shaving wet blue leather to weigh 300% water, rotate 10 minutes, discharge opeing goes out drum.
In above-mentioned retanning step：
The sulphonated fat-liquoring agent is selected up to the happy HF of prestige；
The little acrylate resin tanning agent selects Da Weitan RF15；
The white synthetic tanning agent selects Da Weitan DL57；
The syntans selects Da Weitan AN58；
The dicyandiamide resin tanning agent selects Lanxess Corporation R7；
The wet ornamenting auxiliary agent of the nano combined process hides refers to apply for that " polycarboxylic acid copolymer's joint covers de- to CN 102492079
Content in the method that soil prepares nano combined high absorption chrome tanning adjuvant ".
In above-mentioned fatliquoring steps：
The soft bubble sense fatting agent is selected up to the happy FS-80 of prestige；
The lecithin fatting agent is selected up to the happy FS-90 of prestige；
The sulphonated fat-liquoring agent is selected up to the happy HF of prestige；
The Kind of Electrolyte-resistant Fatliquoring Agent is selected up to the happy GHL of prestige.
Embodiment 1：
The wet blue leather of shaving is weighed, and as measurement basis, is put into rotary drum, carries out following operation；
（1）Neutralization：
At 30 DEG C, add shaving wet blue leather weigh 150% water, 2.0% neutralization tannin, 0.3% sodium bicarbonate, turn 30 minutes；
Control pH5.5, discharge opeing add shaving wet blue leather to weigh 200% water, rotate 10 minutes, draining；
（2）Retanning：
At 30 DEG C, add shaving wet blue leather weigh 50% water, 1.0% sulphonated fat-liquoring agent, 1.0% nano combined process hides it is wet
Ornamenting auxiliary agent, 5.0% little acrylate resin tanning agent are rotated 90 minutes；
Add shaving wet blue leather weigh 4.0% melmac tanning agent, 4.0% white synthetic tanning agent, 4.0% phenol
Class syntans, 3% dicyandiamide resin tanning agent, 4% tannic extract, the 2.0% wet ornamenting auxiliary agent of nano combined process hides, 2% dyestuff
Rotate 90 minutes；
The water that shaving wet blue leather weighs 100%, 50 DEG C is added, is rotated 10 minutes；
（3）It is fixed：
At 50 DEG C, the formic acid that shaving wet blue leather weighs 0.5% is weighed, 1 is pressed with water:10 volume dilution, adds rotary drum, rotates
20 minutes；
The formic acid that shaving wet blue leather weighs 0.5% is weighed again, presses 1 with water:10 volume dilution, adds rotary drum, rotates 30 points
Clock, controls pH5.0, discharge opeing；
（4）Stuffing：
At 55 DEG C, add shaving wet blue leather to weigh 150% water, 2.0% soft bubble and feel fatting agent, 2.0% lecithin stuffing
Agent, 2.0% sulphonated fat-liquoring agent, 1.0% Kind of Electrolyte-resistant Fatliquoring Agent, rotate 90 minutes；
（5）It is fixed：
At 30 DEG C, the formic acid that shaving wet blue leather weighs 1.5% is weighed, 1 is pressed with water:10 volume dilution, point 3 addition rotary drums,
Rotate 20 minutes every time, control pH4.0.Discharge opeing；
（6）Washing：
At 30 DEG C, add shaving wet blue leather to weigh 300% water, rotate 10 minutes, discharge opeing goes out drum.
In above-mentioned retanning step：
The sulphonated fat-liquoring agent is selected up to the happy HF of prestige；
The little acrylate resin tanning agent selects Da Weitan RF15；
The white synthetic tanning agent selects Da Weitan DL57；
The syntans selects Da Weitan AN58；
The dicyandiamide resin tanning agent selects Lanxess Corporation R7.
In above-mentioned fatliquoring steps：
The soft bubble sense fatting agent is selected up to the happy FS-80 of prestige；
The lecithin fatting agent is selected up to the happy FS-90 of prestige；
The sulphonated fat-liquoring agent is selected up to the happy HF of prestige；
The Kind of Electrolyte-resistant Fatliquoring Agent is selected up to the happy GHL of prestige.
Embodiment 2：
The wet blue leather of shaving is weighed, and as measurement basis, is put into rotary drum, carries out following operation；
（1）Neutralization：
At 30 DEG C, add shaving wet blue leather weigh 150% water, 2.0% neutralization tannin, 0.6% sodium bicarbonate, turn 30 minutes；
Control pH5.0, discharge opeing add shaving wet blue leather to weigh 200% water, rotate 10 minutes, draining；
（2）Retanning：
At 30 DEG C, add shaving wet blue leather weigh 50% water, 1.0% sulphonated fat-liquoring agent, 1.5% nano combined process hides it is wet
Ornamenting auxiliary agent, 5.0% little acrylate resin tanning agent are rotated 90 minutes；
Add shaving wet blue leather weigh 4.0% melmac tanning agent, 4.0% white synthetic tanning agent, 4.0% phenol
Class syntans, 3% dicyandiamide resin tanning agent, 4% tannic extract, the 1.5% wet ornamenting auxiliary agent of nano combined process hides, 2% dyestuff
Rotate 90 minutes；
The water that shaving wet blue leather weighs 100%, 50 DEG C is added, is rotated 10 minutes；
（3）It is fixed：
At 50 DEG C, the formic acid that shaving wet blue leather weighs 0.5% is weighed, 1 is pressed with water:10 volume dilution, adds rotary drum, rotates
20 minutes；
The formic acid that shaving wet blue leather weighs 1.0% is weighed again, presses 1 with water:10 volume dilution, adds rotary drum, rotates 30 points
Clock, controls pH4.5, discharge opeing；
（4）Stuffing：
At 55 DEG C, add shaving wet blue leather to weigh 150% water, 2.0% soft bubble and feel fatting agent, 2.0% lecithin stuffing
Agent, 2.0% sulphonated fat-liquoring agent, 1.0% Kind of Electrolyte-resistant Fatliquoring Agent, rotate 90 minutes；
（5）It is fixed：
At 30 DEG C, the formic acid that shaving wet blue leather weighs 1.7% is weighed, 1 is pressed with water:10 volume dilution, point 3 addition rotary drums,
Rotate 20 minutes every time, control pH3.5.Discharge opeing；
（6）Washing：
At 30 DEG C, add shaving wet blue leather to weigh 300% water, rotate 10 minutes, discharge opeing goes out drum.
In above-mentioned retanning step：
The sulphonated fat-liquoring agent is selected up to the happy HF of prestige；
The little acrylate resin tanning agent selects Da Weitan RF15；
The white synthetic tanning agent selects Da Weitan DL57；
The syntans selects Da Weitan AN58；
The dicyandiamide resin tanning agent selects Lanxess Corporation R7.
In above-mentioned fatliquoring steps：
The soft bubble sense fatting agent is selected up to the happy FS-80 of prestige；
The lecithin fatting agent is selected up to the happy FS-90 of prestige；
The sulphonated fat-liquoring agent is selected up to the happy HF of prestige；
The Kind of Electrolyte-resistant Fatliquoring Agent is selected up to the happy GHL of prestige.
Embodiment 3：
The wet blue leather of shaving is weighed, and as measurement basis, is put into rotary drum, carries out following operation；
（1）Neutralization：
At 30 DEG C, add shaving wet blue leather weigh 150% water, 2.0% neutralization tannin, 1.0% sodium bicarbonate, turn 30 minutes；
Control pH4.5, discharge opeing add shaving wet blue leather to weigh 200% water, rotate 10 minutes, draining；
（2）Retanning：
At 30 DEG C, add shaving wet blue leather weigh 50% water, 1.0% sulphonated fat-liquoring agent, 2.0% nano combined process hides it is wet
Ornamenting auxiliary agent, 5.0% little acrylate resin tanning agent are rotated 90 minutes；
Add shaving wet blue leather weigh 4.0% melmac tanning agent, 4.0% white synthetic tanning agent, 4.0% phenol
Class syntans, 3% dicyandiamide resin tanning agent, 4% tannic extract, the 1.0% wet ornamenting auxiliary agent of nano combined process hides, 2% dyestuff
Rotate 90 minutes；
The water that shaving wet blue leather weighs 100%, 50 DEG C is added, is rotated 10 minutes；
（3）It is fixed：
At 50 DEG C, the formic acid that shaving wet blue leather weighs 0.5% is weighed, 1 is pressed with water:10 volume dilution, adds rotary drum, rotates
20 minutes；
The formic acid that shaving wet blue leather weighs 1.5% is weighed again, presses 1 with water:10 volume dilution, adds rotary drum, rotates 30 points
Clock, controls pH4.0, discharge opeing；
（4）Stuffing：
At 55 DEG C, add shaving wet blue leather to weigh 150% water, 2.0% soft bubble and feel fatting agent, 2.0% lecithin stuffing
Agent, 2.0% sulphonated fat-liquoring agent, 1.0% Kind of Electrolyte-resistant Fatliquoring Agent, rotate 90 minutes；
（5）It is fixed：
At 30 DEG C, the formic acid that shaving wet blue leather weighs 2.0% is weighed, 1 is pressed with water:10 volume dilution, point 3 addition rotary drums,
Rotate 20 minutes every time, control pH3.5.Discharge opeing；
（6）Washing：
At 30 DEG C, add shaving wet blue leather to weigh 300% water, rotate 10 minutes, discharge opeing goes out drum.
In above-mentioned retanning step：
The sulphonated fat-liquoring agent is selected up to the happy HF of prestige；
The little acrylate resin tanning agent selects Da Weitan RF15；
The white synthetic tanning agent selects Da Weitan DL57；
The syntans selects Da Weitan AN58；
The dicyandiamide resin tanning agent selects Lanxess Corporation R7.
In above-mentioned fatliquoring steps：
The soft bubble sense fatting agent is selected up to the happy FS-80 of prestige；
The lecithin fatting agent is selected up to the happy FS-90 of prestige；
The sulphonated fat-liquoring agent is selected up to the happy HF of prestige；
The Kind of Electrolyte-resistant Fatliquoring Agent is selected up to the happy GHL of prestige.
The present invention can reduce making for retanning packing material using the wet ornamenting auxiliary agent processing cow leather upper leather of nano combined process hides
With, the absorbance of retanning agent, fatting agent and dyestuff is improved, content of organics and colourity in waste water is reduced, raising chrome tanning agent is in skin
Binding strength in leather, reduce chromium eluting rate, improve the crust leather grain degree of packing, gained crust leather grain burst apart height ratio do not use
The auxiliary agent improves 12.5%.Furthermore it is possible to improve the dyeing uniformity of crust leather.
Present disclosure is not limited to cited by embodiment, and those of ordinary skill in the art are by reading description of the invention
And any equivalent conversion taken by technical solution of the present invention, it is claim of the invention and is covered.
Claims (1)
1. using the technique of the wet ornamenting auxiliary agent processing cow leather upper leather of nano combined process hides, it is characterised in that：
Realized by following steps：
The wet blue leather of shaving is weighed, and as measurement basis, is put into rotary drum, carries out following operation；
（1）Neutralization：
At 30 DEG C, add shaving wet blue leather weigh 150% water, 2.0% neutralization tannin, the sodium bicarbonate of 0.3%-1.0%, turn 30 points
Clock；
Control pH4.5-5.5, discharge opeing add shaving wet blue leather to weigh 200% water, rotate 10 minutes, draining；
（2）Retanning：
At 30 DEG C, add shaving wet blue leather weigh 50% water, 1.0% sulphonated fat-liquoring agent, 1.0%-2.0% nano combined process hides it is wet
Ornamenting auxiliary agent, 5.0% little acrylate resin tanning agent are rotated 90 minutes；
Add shaving wet blue leather weigh 4.0% melmac tanning agent, 4.0% white synthetic tanning agent, 4.0% phenols close
Into tanning agent, 3% dicyandiamide resin tanning agent, 4% tannic extract, the wet ornamenting auxiliary agent of nano combined process hides of 1.0%-2.0%, 2% dyestuff
Rotate 90 minutes；
The water that shaving wet blue leather weighs 100%, 50 DEG C is added, is rotated 10 minutes；
（3）It is fixed：
At 50 DEG C, the formic acid that shaving wet blue leather weighs 0.5% is weighed, 1 is pressed with water:10 volume dilution, adds rotary drum, rotates 20 points
Clock；
The formic acid of shaving wet blue leather weight 0.5%-1.5% is weighed again, presses 1 with water:10 volume dilution, adds rotary drum, rotates 30 points
Clock, controls pH4.0-5.0, discharge opeing；
（4）Stuffing：
At 55 DEG C, add shaving wet blue leather weigh 150% water, 2.0% soft bubble sense fatting agent, 2.0% lecithin fatting agent,
2.0% sulphonated fat-liquoring agent, 1.0% Kind of Electrolyte-resistant Fatliquoring Agent, rotate 90 minutes；
（5）It is fixed：
The formic acid of shaving wet blue leather weight 1.5-2.0% at 30 DEG C, is weighed, and 1 is pressed with water:10 volume dilution, point 3 addition rotary drums,
Rotate 20 minutes every time, control pH：3.5-4.0；
Discharge opeing；
（6）Washing：
At 30 DEG C, add shaving wet blue leather to weigh 300% water, rotate 10 minutes, discharge opeing goes out drum；
In retanning step：
The sulphonated fat-liquoring agent is selected up to the happy HF of prestige；
The little acrylate resin tanning agent selects Da Weitan RF15；
The white synthetic tanning agent selects Da Weitan DL57；
The phenols syntans selects Da Weitan AN58；
The dicyandiamide resin tanning agent selects Lanxess Corporation R7；
In fatliquoring steps：
The soft bubble sense fatting agent is selected up to the happy FS-80 of prestige；
The lecithin fatting agent is selected up to the happy FS-90 of prestige；
The sulphonated fat-liquoring agent is selected up to the happy HF of prestige；
The Kind of Electrolyte-resistant Fatliquoring Agent is selected up to the happy GHL of prestige.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510138887.5A CN104789717B (en) | 2015-03-27 | 2015-03-27 | Process for processing cattle hide upper leather by adopting nano-composite leather wet finishing auxiliary |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510138887.5A CN104789717B (en) | 2015-03-27 | 2015-03-27 | Process for processing cattle hide upper leather by adopting nano-composite leather wet finishing auxiliary |
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| Publication Number | Publication Date |
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| CN104789717A CN104789717A (en) | 2015-07-22 |
| CN104789717B true CN104789717B (en) | 2017-04-19 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108342527A (en) * | 2018-01-10 | 2018-07-31 | 马斌祥 | A kind of environment-friendly type brother chemicals technique of leather |
| CN115232893B (en) * | 2022-08-18 | 2023-05-12 | 四川大学 | Flexible neutron shielding material based on collagen fibers and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117648B (en) * | 2007-09-04 | 2010-05-26 | 广州市德威皮革制品有限公司 | Novel process for leather retanning |
| CN101225226B (en) * | 2008-01-28 | 2010-11-24 | 浙江大学 | Method for preparing water-dispersion montmorillonite/organic block polyurethane nano composite material and uses thereof |
| CN101857907B (en) * | 2010-06-03 | 2012-09-05 | 烟台大学 | Method for dying leather by adopting tannin extract mordanting method |
| KR101361393B1 (en) * | 2012-04-04 | 2014-02-11 | 한국신발피혁연구원 | Seat cover leather for automobile having excellent durability and a fabrication process thereof |
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