CN104789717A - 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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- CN104789717A CN104789717A CN201510138887.5A CN201510138887A CN104789717A CN 104789717 A CN104789717 A CN 104789717A CN 201510138887 A CN201510138887 A CN 201510138887A CN 104789717 A CN104789717 A CN 104789717A
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- 239000010985 leather Substances 0.000 title claims abstract description 118
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000012545 processing Methods 0.000 title claims abstract description 15
- 241000283690 Bos taurus Species 0.000 title abstract description 11
- 239000002114 nanocomposite Substances 0.000 title abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 139
- 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
- 229920001864 tannin Polymers 0.000 claims abstract description 14
- 235000018553 tannin Nutrition 0.000 claims abstract description 14
- 239000001648 tannin Substances 0.000 claims abstract description 14
- 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
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 13
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 7
- 239000004640 Melamine resin Substances 0.000 claims abstract description 7
- 239000012752 auxiliary agent Substances 0.000 claims description 28
- 239000012895 dilution Substances 0.000 claims description 18
- 238000010790 dilution Methods 0.000 claims description 18
- 239000000975 dye Substances 0.000 claims description 13
- 239000003792 electrolyte Substances 0.000 claims description 12
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 6
- 150000002989 phenols Chemical class 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 12
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 8
- 239000002351 wastewater Substances 0.000 abstract description 5
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 abstract 2
- 229920000178 Acrylic resin Polymers 0.000 abstract 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 1
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- 230000003472 neutralizing effect Effects 0.000 abstract 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 abstract 1
- 235000017557 sodium bicarbonate Nutrition 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 238000010521 absorption reaction 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
- 238000004043 dyeing Methods 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- 230000009172 bursting Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000006210 lotion Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002861 polymer material Substances 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
- 150000001875 compounds Chemical class 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000620 organic polymer Polymers 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
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, be specifically related to a kind of adopt nano combined process hides wet ornamenting auxiliary agent processing cow leather upper leather technique.
Background technology
China is leatherware production and consumption big country, and leatherware output, outlet all occupy first place in the world with absolute predominance.Divide from resultant Leather purposes, upper leather is 35%, and with regard to upper leather, bovine cerebellum accounts for 65% of upper leather, is the main products in upper leather.
In the course of processing of leather, be mainly divided into three large workshop sections, beam house, tanning process and finishing workshop section after tanning before tanning.After tanning in finishing workshop section, be mainly divided into wet ornamenting and dry ornamenting Liang great workshop section.In wet finishing workshop section, master operation is the operations such as retanning, dyeing and stuffing, and the respective material of use is retanning agent, dyestuff and fatting agent respectively.Wet ornamenting is called " Golden Touch " that leather becomes to produce, but, in wet finishing workshop section, due to the contradiction that the infiltration of various material exists with combination, the chemical material specific absorption joined in body lotion is limited, to have caused in waste liquid unabsorbed retanning agent, dyestuff and fatting agent remaining, and this not only causes the wasting of resources, further increase the degree of difficulty of wastewater treatment, also potential hazard is existed to environment.Therefore, the assimilated efficiency how improving retanning agent, dyestuff and fatting agent is day by day taken seriously.At present, this technical field has developed the material that can improve fatting agent, dyestuff, retanning agent, but wet finishing auxiliary agent nanotechnology prepared is applied to the also rarely seen report of leather wet arrangement aspect.
Summary of the invention
The object of this invention is to provide a kind of adopt nano combined process hides wet ornamenting auxiliary agent processing cow leather upper leather technique, effectively reduce the remnants of wet finishing material in leather-making waste water.
The technical solution adopted in the present invention is:
Adopt nano combined process hides wet ornamenting auxiliary agent processing cow leather upper leather technique, it is characterized in that:
Realized by following steps:
The wet blue leather of shaving is weighed, and as measurement basis, is dropped into rotary drum, carries out following operation;
(1) neutralize:
At 30 DEG C, add shaving wet blue leather weigh in the water, 2.0% of 150% and tannin, 0.3%-1.0% sodium bicarbonate, turn 30 minutes;
Control pH4.5-5.5, discharge opeing, adds the water that shaving wet blue leather weighs 200%, rotates 10 minutes, draining;
(2) retanning:
At 30 DEG C, add water, the sulphonated fat-liquoring agent of 1.0%, the nano combined process hides of 1.0%-2.0% that shaving wet blue leather weighs 50% wet ornamenting auxiliary agent, 5.0% little acrylate resin tanning agent rotate 90 minutes;
Add that shaving wet blue leather weighs the melamine resin tanning agent of 4.0%, ornamenting auxiliary agent is wet in white synthetic tanning agent, the phenols synthetic tanning agent of 4.0%, dicyandiamide resin tanning agent, the tannin extract of 4%, the nano combined process hides of 1.0%-2.0% of 3% of 4.0% again, the dyestuff of 2% rotates 90 minutes;
Add the water that shaving wet blue leather weighs 100%, 50 DEG C again, rotate 10 minutes;
(3) fixing:
At 50 DEG C, weigh the formic acid that shaving wet blue leather weighs 0.5%, press the volume dilution of 1:10 with water, add rotary drum, rotate 20 minutes;
Weigh the formic acid of the heavy 0.5%-1.5% of shaving wet blue leather again, press the volume dilution of 1:10 with water, add rotary drum, rotate 30 minutes, control pH4.0-5.0, discharge opeing;
(4) stuffing:
At 55 DEG C, add water, the softness bubble sense fatting agent of 2.0%, Yelkin TTS fatting agent, the sulphonated fat-liquoring agent of 2.0%, the Kind of Electrolyte-resistant Fatliquoring Agent of 1.0% of 2.0% that shaving wet blue leather weighs 150%, rotate 90 minutes;
(5) fixing:
At 30 DEG C, weigh the formic acid of the heavy 1.5-2.0% of shaving wet blue leather, press the volume dilution of 1:10 with water, divide and add rotary drum 3 times, each rotation 20 minutes, control pH:3.5-4.0.Discharge opeing;
(6) wash:
At 30 DEG C, add the water that shaving wet blue leather weighs 300%, rotate 10 minutes, discharge opeing, goes out drum.
In retanning step:
Described sulphonated fat-liquoring agent is selected and is reached the happy HF of prestige;
Described little acrylate resin tanning agent selects Da Weitan RF15;
Described white synthetic tanning agent selects Da Weitan DL57;
Da Weitan AN58 selected by described synthetic tanning agent;
Lanxess Corporation R7 selected by described dicyandiamide resin tanning agent.
In fatliquoring steps:
Described softness bubble sense fatting agent is selected and is reached the happy FS-80 of prestige;
Described Yelkin TTS fatting agent is selected and is reached the happy FS-90 of prestige;
Described sulphonated fat-liquoring agent is selected and is reached the happy HF of prestige;
Described Kind of Electrolyte-resistant Fatliquoring Agent is selected and is reached the happy GHL of prestige.
The present invention has the following advantages:
The present invention adopt nano combined process hides wet ornamenting auxiliary agent processing cow leather upper leather, the nano combined process hides ornamenting auxiliary agent that wets is a kind of organic/inorganic composite material based on high molecular polymer/nano material, its constructional feature take inorganic nanoscale material as carrier, to be rich in the high molecular polymer of various active functional group for basic comprising unit.Be applied in the wet finishing operation of leather, effectively can improve the specific absorption of retanning agent, dyestuff and fatting agent.Not only increase the utilization of resource, also reduce the remnants of wet finishing material in leather-making waste water, effectively reduce cost for wastewater treatment, alleviate the pollution to environment.Simple to operate, the use of retanning packing material can be reduced.Reduce organic content and colourity in waste water.Improve chrome tanning agent binding strength in the leather, reduce the eluting rate of chromium.Improve the crust leather grain degree of packing, gained crust leather grain aspect ratio of bursting apart does not use this auxiliary agent to improve 12.5%.In addition, the dyeing uniformity of crust leather can be improved.
Embodiment
Below in conjunction with embodiment, the present invention will be described in detail.
The nano material with property, by carrying out compound with organic polymer material, can obtain nano composite material, these homogenize material disperseed and is securely fixed between leather fiber, can reach good tanning object.As pretanning agent during chrome tanning, the hydrothermal stability of collagen can not only be improved, effectively can also absorb the chromium ion in body lotion, reduce the pollution that chrome tanning brings.The present invention's ornamenting auxiliary agent that the nano combined process hides prepared by nanotechnology wet is applied in the wet finishing process of leather making process, modification is carried out to collagen, increase the reactive behavior point of collagen, increase collagen to the absorption of retanning agent, dyestuff and fatting agent, the pollution of the efficiency utilization and environment that realize resource reduces, and promotes the sound development of tanning industry.
The nano combined process hides of the employing that the present invention relates to wet ornamenting auxiliary agent processing cow leather upper leather technique, realized by following steps:
The wet blue leather of shaving is weighed, and as measurement basis, is dropped into rotary drum, carries out following operation;
(1) neutralize:
At 30 DEG C, add shaving wet blue leather weigh in the water, 2.0% of 150% and tannin, 0.3%-1.0% sodium bicarbonate, turn 30 minutes;
Control pH4.5-5.5, discharge opeing, adds the water that shaving wet blue leather weighs 200%, rotates 10 minutes, draining;
(2) retanning:
At 30 DEG C, add water, the sulphonated fat-liquoring agent of 1.0%, the nano combined process hides of 1.0%-2.0% that shaving wet blue leather weighs 50% wet ornamenting auxiliary agent, 5.0% little acrylate resin tanning agent rotate 90 minutes;
Add that shaving wet blue leather weighs the melamine resin tanning agent of 4.0%, ornamenting auxiliary agent is wet in white synthetic tanning agent, the phenols synthetic tanning agent of 4.0%, dicyandiamide resin tanning agent, the tannin extract of 4%, the nano combined process hides of 1.0%-2.0% of 3% of 4.0% again, the dyestuff of 2% rotates 90 minutes;
Add the water that shaving wet blue leather weighs 100%, 50 DEG C again, rotate 10 minutes;
(3) fixing:
At 50 DEG C, weigh the formic acid that shaving wet blue leather weighs 0.5%, press the volume dilution of 1:10 with water, add rotary drum, rotate 20 minutes;
Weigh the formic acid of the heavy 0.5%-1.5% of shaving wet blue leather again, press the volume dilution of 1:10 with water, add rotary drum, rotate 30 minutes, control pH4.0-5.0, discharge opeing;
(4) stuffing:
At 55 DEG C, add water, the softness bubble sense fatting agent of 2.0%, Yelkin TTS fatting agent, the sulphonated fat-liquoring agent of 2.0%, the Kind of Electrolyte-resistant Fatliquoring Agent of 1.0% of 2.0% that shaving wet blue leather weighs 150%, rotate 90 minutes;
(5) fixing:
At 30 DEG C, weigh the formic acid of the heavy 1.5-2.0% of shaving wet blue leather, press the volume dilution of 1:10 with water, divide and add rotary drum 3 times, each rotation 20 minutes, control pH:3.5-4.0.Discharge opeing;
(6) wash:
At 30 DEG C, add the water that shaving wet blue leather weighs 300%, rotate 10 minutes, discharge opeing, goes out drum.
In above-mentioned retanning step:
Described sulphonated fat-liquoring agent is selected and is reached the happy HF of prestige;
Described little acrylate resin tanning agent selects Da Weitan RF15;
Described white synthetic tanning agent selects Da Weitan DL57;
Da Weitan AN58 selected by described synthetic tanning agent;
Lanxess Corporation R7 selected by described dicyandiamide resin tanning agent;
Ornamenting auxiliary agent is wet in described nano combined process hides can content in application reference CN 102492079 " method of nano combined high absorption chrome tanning adjuvant is prepared in polycarboxylic acid copolymer's associating polynite ".
In above-mentioned fatliquoring steps:
Described softness bubble sense fatting agent is selected and is reached the happy FS-80 of prestige;
Described Yelkin TTS fatting agent is selected and is reached the happy FS-90 of prestige;
Described sulphonated fat-liquoring agent is selected and is reached the happy HF of prestige;
Described Kind of Electrolyte-resistant Fatliquoring Agent is selected and is reached the happy GHL of prestige.
Embodiment 1:
The wet blue leather of shaving is weighed, and as measurement basis, is dropped into rotary drum, carries out following operation;
(1) neutralize:
At 30 DEG C, add shaving wet blue leather weigh in the water, 2.0% of 150% and tannin, 0.3% sodium bicarbonate, turn 30 minutes;
Control pH5.5, discharge opeing, adds the water that shaving wet blue leather weighs 200%, rotates 10 minutes, draining;
(2) retanning:
At 30 DEG C, add water, the sulphonated fat-liquoring agent of 1.0%, the nano combined process hides of 1.0% that shaving wet blue leather weighs 50% wet ornamenting auxiliary agent, 5.0% little acrylate resin tanning agent rotate 90 minutes;
Add that shaving wet blue leather weighs the melamine resin tanning agent of 4.0%, ornamenting auxiliary agent is wet in white synthetic tanning agent, the phenols synthetic tanning agent of 4.0%, dicyandiamide resin tanning agent, the tannin extract of 4%, the nano combined process hides of 2.0% of 3% of 4.0% again, the dyestuff of 2% rotates 90 minutes;
Add the water that shaving wet blue leather weighs 100%, 50 DEG C again, rotate 10 minutes;
(3) fixing:
At 50 DEG C, weigh the formic acid that shaving wet blue leather weighs 0.5%, press the volume dilution of 1:10 with water, add rotary drum, rotate 20 minutes;
Weigh the formic acid that shaving wet blue leather weighs 0.5% again, press the volume dilution of 1:10 with water, add rotary drum, rotate 30 minutes, control pH5.0, discharge opeing;
(4) stuffing:
At 55 DEG C, add water, the softness bubble sense fatting agent of 2.0%, Yelkin TTS fatting agent, the sulphonated fat-liquoring agent of 2.0%, the Kind of Electrolyte-resistant Fatliquoring Agent of 1.0% of 2.0% that shaving wet blue leather weighs 150%, rotate 90 minutes;
(5) fixing:
At 30 DEG C, weigh the formic acid that shaving wet blue leather weighs 1.5%, press the volume dilution of 1:10 with water, divide and add rotary drum 3 times, each rotation 20 minutes, control pH4.0.Discharge opeing;
(6) wash:
At 30 DEG C, add the water that shaving wet blue leather weighs 300%, rotate 10 minutes, discharge opeing, goes out drum.
In above-mentioned retanning step:
Described sulphonated fat-liquoring agent is selected and is reached the happy HF of prestige;
Described little acrylate resin tanning agent selects Da Weitan RF15;
Described white synthetic tanning agent selects Da Weitan DL57;
Da Weitan AN58 selected by described synthetic tanning agent;
Lanxess Corporation R7 selected by described dicyandiamide resin tanning agent.
In above-mentioned fatliquoring steps:
Described softness bubble sense fatting agent is selected and is reached the happy FS-80 of prestige;
Described Yelkin TTS fatting agent is selected and is reached the happy FS-90 of prestige;
Described sulphonated fat-liquoring agent is selected and is reached the happy HF of prestige;
Described Kind of Electrolyte-resistant Fatliquoring Agent is selected and is reached the happy GHL of prestige.
Embodiment 2:
The wet blue leather of shaving is weighed, and as measurement basis, is dropped into rotary drum, carries out following operation;
(1) neutralize:
At 30 DEG C, add shaving wet blue leather weigh in the water, 2.0% of 150% and tannin, 0.6% sodium bicarbonate, turn 30 minutes;
Control pH5.0, discharge opeing, adds the water that shaving wet blue leather weighs 200%, rotates 10 minutes, draining;
(2) retanning:
At 30 DEG C, add water, the sulphonated fat-liquoring agent of 1.0%, the nano combined process hides of 1.5% that shaving wet blue leather weighs 50% wet ornamenting auxiliary agent, 5.0% little acrylate resin tanning agent rotate 90 minutes;
Add that shaving wet blue leather weighs the melamine resin tanning agent of 4.0%, ornamenting auxiliary agent is wet in white synthetic tanning agent, the phenols synthetic tanning agent of 4.0%, dicyandiamide resin tanning agent, the tannin extract of 4%, the nano combined process hides of 1.5% of 3% of 4.0% again, the dyestuff of 2% rotates 90 minutes;
Add the water that shaving wet blue leather weighs 100%, 50 DEG C again, rotate 10 minutes;
(3) fixing:
At 50 DEG C, weigh the formic acid that shaving wet blue leather weighs 0.5%, press the volume dilution of 1:10 with water, add rotary drum, rotate 20 minutes;
Weigh the formic acid that shaving wet blue leather weighs 1.0% again, press the volume dilution of 1:10 with water, add rotary drum, rotate 30 minutes, control pH4.5, discharge opeing;
(4) stuffing:
At 55 DEG C, add water, the softness bubble sense fatting agent of 2.0%, Yelkin TTS fatting agent, the sulphonated fat-liquoring agent of 2.0%, the Kind of Electrolyte-resistant Fatliquoring Agent of 1.0% of 2.0% that shaving wet blue leather weighs 150%, rotate 90 minutes;
(5) fixing:
At 30 DEG C, weigh the formic acid that shaving wet blue leather weighs 1.7%, press the volume dilution of 1:10 with water, divide and add rotary drum 3 times, each rotation 20 minutes, control pH3.5.Discharge opeing;
(6) wash:
At 30 DEG C, add the water that shaving wet blue leather weighs 300%, rotate 10 minutes, discharge opeing, goes out drum.
In above-mentioned retanning step:
Described sulphonated fat-liquoring agent is selected and is reached the happy HF of prestige;
Described little acrylate resin tanning agent selects Da Weitan RF15;
Described white synthetic tanning agent selects Da Weitan DL57;
Da Weitan AN58 selected by described synthetic tanning agent;
Lanxess Corporation R7 selected by described dicyandiamide resin tanning agent.
In above-mentioned fatliquoring steps:
Described softness bubble sense fatting agent is selected and is reached the happy FS-80 of prestige;
Described Yelkin TTS fatting agent is selected and is reached the happy FS-90 of prestige;
Described sulphonated fat-liquoring agent is selected and is reached the happy HF of prestige;
Described Kind of Electrolyte-resistant Fatliquoring Agent is selected and is reached the happy GHL of prestige.
Embodiment 3:
The wet blue leather of shaving is weighed, and as measurement basis, is dropped into rotary drum, carries out following operation;
(1) neutralize:
At 30 DEG C, add shaving wet blue leather weigh in the water, 2.0% of 150% and tannin, 1.0% sodium bicarbonate, turn 30 minutes;
Control pH4.5, discharge opeing, adds the water that shaving wet blue leather weighs 200%, rotates 10 minutes, draining;
(2) retanning:
At 30 DEG C, add water, the sulphonated fat-liquoring agent of 1.0%, the nano combined process hides of 2.0% that shaving wet blue leather weighs 50% wet ornamenting auxiliary agent, 5.0% little acrylate resin tanning agent rotate 90 minutes;
Add that shaving wet blue leather weighs the melamine resin tanning agent of 4.0%, ornamenting auxiliary agent is wet in white synthetic tanning agent, the phenols synthetic tanning agent of 4.0%, dicyandiamide resin tanning agent, the tannin extract of 4%, the nano combined process hides of 1.0% of 3% of 4.0% again, the dyestuff of 2% rotates 90 minutes;
Add the water that shaving wet blue leather weighs 100%, 50 DEG C again, rotate 10 minutes;
(3) fixing:
At 50 DEG C, weigh the formic acid that shaving wet blue leather weighs 0.5%, press the volume dilution of 1:10 with water, add rotary drum, rotate 20 minutes;
Weigh the formic acid that shaving wet blue leather weighs 1.5% again, press the volume dilution of 1:10 with water, add rotary drum, rotate 30 minutes, control pH4.0, discharge opeing;
(4) stuffing:
At 55 DEG C, add water, the softness bubble sense fatting agent of 2.0%, Yelkin TTS fatting agent, the sulphonated fat-liquoring agent of 2.0%, the Kind of Electrolyte-resistant Fatliquoring Agent of 1.0% of 2.0% that shaving wet blue leather weighs 150%, rotate 90 minutes;
(5) fixing:
At 30 DEG C, weigh the formic acid that shaving wet blue leather weighs 2.0%, press the volume dilution of 1:10 with water, divide and add rotary drum 3 times, each rotation 20 minutes, control pH3.5.Discharge opeing;
(6) wash:
At 30 DEG C, add the water that shaving wet blue leather weighs 300%, rotate 10 minutes, discharge opeing, goes out drum.
In above-mentioned retanning step:
Described sulphonated fat-liquoring agent is selected and is reached the happy HF of prestige;
Described little acrylate resin tanning agent selects Da Weitan RF15;
Described white synthetic tanning agent selects Da Weitan DL57;
Da Weitan AN58 selected by described synthetic tanning agent;
Lanxess Corporation R7 selected by described dicyandiamide resin tanning agent.
In above-mentioned fatliquoring steps:
Described softness bubble sense fatting agent is selected and is reached the happy FS-80 of prestige;
Described Yelkin TTS fatting agent is selected and is reached the happy FS-90 of prestige;
Described sulphonated fat-liquoring agent is selected and is reached the happy HF of prestige;
Described Kind of Electrolyte-resistant Fatliquoring Agent is selected and is reached the happy GHL of prestige.
The present invention adopt nano combined process hides wet ornamenting auxiliary agent processing cow leather upper leather, the use of retanning packing material can be reduced, improve the specific absorption of retanning agent, fatting agent and dyestuff, reduce organic content and colourity in waste water, improve chrome tanning agent binding strength in the leather, reduce the eluting rate of chromium, improve the crust leather grain degree of packing, gained crust leather grain aspect ratio of bursting apart does not use this auxiliary agent to improve 12.5%.In addition, the dyeing uniformity of crust leather can be improved.
Content of the present invention is not limited to cited by embodiment, and the conversion of those of ordinary skill in the art by reading specification sheets of the present invention to any equivalence that technical solution of the present invention is taked, is claim of the present invention and contains.
Claims (3)
1. adopt nano combined process hides wet ornamenting auxiliary agent processing cow leather upper leather technique, it is characterized in that:
Realized by following steps:
The wet blue leather of shaving is weighed, and as measurement basis, is dropped into rotary drum, carries out following operation;
(1) neutralize:
At 30 DEG C, add shaving wet blue leather weigh in the water, 2.0% of 150% and tannin, 0.3%-1.0% sodium bicarbonate, turn 30 minutes;
Control pH4.5-5.5, discharge opeing, adds the water that shaving wet blue leather weighs 200%, rotates 10 minutes, draining;
(2) retanning:
At 30 DEG C, add water, the sulphonated fat-liquoring agent of 1.0%, the nano combined process hides of 1.0%-2.0% that shaving wet blue leather weighs 50% wet ornamenting auxiliary agent, 5.0% little acrylate resin tanning agent rotate 90 minutes;
Add that shaving wet blue leather weighs the melamine resin tanning agent of 4.0%, ornamenting auxiliary agent is wet in white synthetic tanning agent, the phenols synthetic tanning agent of 4.0%, dicyandiamide resin tanning agent, the tannin extract of 4%, the nano combined process hides of 1.0%-2.0% of 3% of 4.0% again, the dyestuff of 2% rotates 90 minutes;
Add the water that shaving wet blue leather weighs 100%, 50 DEG C again, rotate 10 minutes;
(3) fixing:
At 50 DEG C, weigh the formic acid that shaving wet blue leather weighs 0.5%, press the volume dilution of 1:10 with water, add rotary drum, rotate 20 minutes;
Weigh the formic acid of the heavy 0.5%-1.5% of shaving wet blue leather again, press the volume dilution of 1:10 with water, add rotary drum, rotate 30 minutes, control pH4.0-5.0, discharge opeing;
(4) stuffing:
At 55 DEG C, add water, the softness bubble sense fatting agent of 2.0%, Yelkin TTS fatting agent, the sulphonated fat-liquoring agent of 2.0%, the Kind of Electrolyte-resistant Fatliquoring Agent of 1.0% of 2.0% that shaving wet blue leather weighs 150%, rotate 90 minutes;
(5) fixing:
At 30 DEG C, weigh the formic acid of the heavy 1.5-2.0% of shaving wet blue leather, press the volume dilution of 1:10 with water, divide and add rotary drum 3 times, each rotation 20 minutes, control pH:3.5-4.0;
Discharge opeing;
(6) wash:
At 30 DEG C, add the water that shaving wet blue leather weighs 300%, rotate 10 minutes, discharge opeing, goes out drum.
2. the nano combined process hides of employing according to claim 1 wet ornamenting auxiliary agent processing cow leather upper leather technique, it is characterized in that:
In retanning step:
Described sulphonated fat-liquoring agent is selected and is reached the happy HF of prestige;
Described little acrylate resin tanning agent selects Da Weitan RF15;
Described white synthetic tanning agent selects Da Weitan DL57;
Da Weitan AN58 selected by described synthetic tanning agent;
Lanxess Corporation R7 selected by described dicyandiamide resin tanning agent.
3. the nano combined process hides of employing according to claim 2 wet ornamenting auxiliary agent processing cow leather upper leather technique, it is characterized in that:
In fatliquoring steps:
Described softness bubble sense fatting agent is selected and is reached the happy FS-80 of prestige;
Described Yelkin TTS fatting agent is selected and is reached the happy FS-90 of prestige;
Described sulphonated fat-liquoring agent is selected and is reached the happy HF of prestige;
Described Kind of Electrolyte-resistant Fatliquoring Agent is selected and is reached the happy GHL of prestige.
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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 |
| CN115232893A (en) * | 2022-08-18 | 2022-10-25 | 四川大学 | Flexible neutron shielding material based on collagen fibers and preparation method |
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| CN104789717B (en) | 2017-04-19 |
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