CN109439810A - Chrome-free poly-metals tanning agent prepares high-grade sheep clothes hair leather technique - Google Patents
Chrome-free poly-metals tanning agent prepares high-grade sheep clothes hair leather technique Download PDFInfo
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- 239000010985 leather Substances 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 52
- 210000004209 hair Anatomy 0.000 title claims abstract description 35
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 35
- 239000002184 metal Substances 0.000 title claims abstract description 35
- 150000002739 metals Chemical class 0.000 title claims abstract description 35
- 241001494479 Pecora Species 0.000 title claims abstract description 25
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 108
- 238000005554 pickling Methods 0.000 claims abstract description 64
- 238000012545 processing Methods 0.000 claims abstract description 14
- 150000007524 organic acids Chemical class 0.000 claims abstract description 10
- 238000005238 degreasing Methods 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 9
- 238000007654 immersion Methods 0.000 claims abstract description 9
- 238000001238 wet grinding Methods 0.000 claims abstract description 9
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 69
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 50
- 239000007788 liquid Substances 0.000 claims description 49
- 239000002253 acid Substances 0.000 claims description 40
- 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 description 25
- 235000019253 formic acid Nutrition 0.000 claims description 25
- 239000004902 Softening Agent Substances 0.000 claims description 24
- WHOZNOZYMBRCBL-OUKQBFOZSA-N (2E)-2-Tetradecenal Chemical compound CCCCCCCCCCC\C=C\C=O WHOZNOZYMBRCBL-OUKQBFOZSA-N 0.000 claims description 16
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 16
- 229940044654 phenolsulfonic acid Drugs 0.000 claims description 16
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 14
- 102000004190 Enzymes Human genes 0.000 claims description 13
- 108090000790 Enzymes Proteins 0.000 claims description 13
- 239000012752 auxiliary agent Substances 0.000 claims description 9
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 8
- 230000007935 neutral effect Effects 0.000 claims description 8
- 150000003839 salts Chemical class 0.000 claims description 8
- 239000001632 sodium acetate Substances 0.000 claims description 8
- 235000017281 sodium acetate Nutrition 0.000 claims description 8
- 235000017550 sodium carbonate Nutrition 0.000 claims description 8
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 8
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 6
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 7
- 239000011651 chromium Substances 0.000 abstract description 5
- 239000002351 wastewater Substances 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 4
- 230000037308 hair color Effects 0.000 abstract description 4
- 210000002268 wool Anatomy 0.000 abstract description 4
- 229910052804 chromium Inorganic materials 0.000 abstract description 3
- 229920000180 alkyd Polymers 0.000 abstract description 2
- 230000005764 inhibitory process Effects 0.000 abstract description 2
- 235000005985 organic acids Nutrition 0.000 abstract description 2
- 239000005416 organic matter Substances 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 150000001735 carboxylic acids Chemical class 0.000 abstract 1
- 238000007792 addition Methods 0.000 description 32
- 239000000126 substance Substances 0.000 description 28
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 18
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 14
- 239000010931 gold Substances 0.000 description 14
- 229910052737 gold Inorganic materials 0.000 description 14
- 238000002360 preparation method Methods 0.000 description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 8
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 5
- 150000001299 aldehydes Chemical class 0.000 description 5
- 238000005496 tempering Methods 0.000 description 5
- 230000002879 macerating effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000004383 yellowing Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 230000003472 neutralizing effect Effects 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 238000007705 chemical test Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 239000000987 azo dye Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010998 test method Methods 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
- 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
- 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
- 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)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The present invention relates to hairs to remove from office processing technique field, high-grade sheep clothes hair leather technique is prepared more particularly to a kind of Chrome-free poly-metals tanning agent, the technique is followed successively by rewetting, drying, cropping, main immersion, fleshing, degreasing, softening pickling, tanning, wet-milling, retanning, neutralization, stuffing, dry finishing, finished product, wherein, soften pickling in using weak organic acids such as polynary alkyd and polybasic carboxylic acids to carry out pickling while mildly soften.The present invention is the processing technology of white hair leather, and finally obtained finished product good hand feeling, softness, hair color and dermatotome color are pure white, and plate face suede is short and thin, water-fastness color inhibition, is particularly suitable for making high-grade true qualities and bright wool removes from office product.The technology does not use chrome tanning agent, is avoided that the pollution of the three wastes containing chromium, prevents the harm of Cr VI；The COD in waste water can be effectively reduced in tanning processes, while control the volatile organic matter of Mao Gezhong.
Description
Technical field
The present invention relates to hairs to remove from office processing technique field, and in particular to a kind of Chrome-free poly-metals tanning agent preparation high-grade sheep clothes
Hair leather technique.
Background technique
Chrome tanning removes from office tanning field always in occupation of absolute leading position in sheep clothing hair, but as country is to Mao Gehang
The raising and limitation of industry discharge standard, the expense for administering chromate waste water are multiplied, and seriously limit the development of hair leather industry.In
It is to find the process for tanning of alternative chrome tanning a kind of to become research emphasis in recent years, chrome-free tanning is main grinds for current hair leather
Studying carefully direction has the methods of aldehyde tannage, aluminum tanning, vegetable tanning, modified organic tan, but the above method has defect to some extent.Aldehyde tannage
Phenomena such as obtained hide will appear yellowing, tempering after long-time is stored, while also will be slow release free formaldehyde to human body
It causes damages.Tempering is easy after aluminum tannage washing.Vegetable tanning method is low with the hide shrinkage temperature that modified organic tanning method obtains, hide hand
It is poor to feel, while being also difficult to meet subsequent long-time high temperature stuffing and the needs to fleece dyeing.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the agent of Chrome-free poly-metals tanning is used the purpose of the present invention is to provide a kind of
Prepare the technology of high-grade sheep clothes hair leather, with solve existing useless chromium harm is big, aluminum tanning intolerant to washing, aldehyde tannage not shelf-stable, plant
The problems such as tan and bad organic tan feel.The COD in tanning waste water can not only be effectively reduced in the technique, and the hair leather produced
Phenomena such as color is pure white, and tempering yellowing will not occur after a long time placement.
In order to achieve the above object of the invention, the invention adopts the following technical scheme:
A kind of Chrome-free poly-metals tanning agent preparation high-grade sheep clothes hair leather technique, comprising the following steps:
Step 1: rewetting,
Step 2: drying,
Step 3: cropping,
Step 4: main immersion,
Step 5: fleshing,
Step 6: degreasing,
Step 7: softening pickling,
Firstly, fur is added in softening pickling liquid, soften the dosage of pickling liquid according to the matter of water and fur in softening pickling liquid
For amount than being that 20-40 is carried out, adjusting temperature is 30-40 DEG C, handles 10-24h, while with intermittent rotary, rotating 5- per hour
10min；
Then, pickling fatting agent CP-996(Smit&zoon is added wherein) 1.0-5.0g/l, fur pickling agent MN(desai that
Chemical industry) 10-20 g/l or the auspicious leather technology of auxiliary pickling agent PA(moral) 5-15 g/l, adjusting pH is 2.4-2.9, and temperature is adjusted
It is 20-30 DEG C, handles 48-72 h, and with intermittent rotary, every 4 hours rotation 40-60 min, skin takes horse and stands 7 out later
More than；
Step 8: tanning,
Step 9: wet-milling,
Step 10: retanning,
Step 11: neutralize,
Step 12: stuffing,
Step 13: dry finishing,
Step 14: finished product.
Preferably, soften the proportion of pickling liquid in step 7 are as follows:
Weak organic acid Bascal S(BSAF) 1-2 g/l,
The auspicious leather technology of acid bating enzyme DVP(moral) or acid bating enzyme WB (the auspicious leather technology of moral) 1-4 g/l,
Nacl 20-30 g/l,
Remaining is water.
Softening pickling of the invention is not by the way of conventional formic acid or sulfuric acid pickling, but by using polynary alkyd
Mildly soften while carrying out pickling with the weak organic acids such as polybasic carboxylic acid.
Preferably, step 8 tanning step is specific as follows:
Firstly, adjusting, tanning solution pH is 2.4-2.9, temperature is 30-40 DEG C, and the fur of previous step processing is added, and handles 30-60
min；Tanning solution dosage is 20-40 addition according to the mass ratio of water in tanning and fur；
The composition of tanning solution are as follows: Nacl 50-80 g/L, industrial formic acid 1-3 g/L, remaining is water；
Then, tanning fatting agent EG-60(Smit&zoon is added) 2.0-4.0 g/l and softening agent TL(Smit&zoon) 2.0-
12.0 g/l handle 30-60 min；
Then, acrylic syntans RS-540(Smit&zoon is added) 2.0-7.0 g/l, 30-60 min is handled,
Then, phenol sulfonic acid syntans S(Smit&zoon is added) 2.0-7.0 g/l, 30-60 min is handled,
Then, the female chemical industry of Chrome-free poly-metals tanning agent ZT-601(gold is added) 15-30 g/l, 60-120 min is handled,
Then, acid bating enzyme ABL(Murphy & Son is added) 0.05-0.5 g/l, intermittent rotary rotates 20 per hour
Min handles 10-24 h,
Finally, soda ash 0.5-1.5 g/l is added, and divide 3-4 addition, adjusts pH to 3.9-4.4, intermittent rotary turns per hour
Dynamic 30 min, handle 5-8 h.
Preferably, the step 10 retanning step is specific as follows:
Firstly, adjust the pH to 3.0-3.5 of retanning liquid, temperature is 30-40 DEG C, be added previous step treated fur, handle 30-
60 min, retanning liquid dosage are 20-40 addition according to the mass ratio of water and fur in retanning liquid；
The composition of retanning liquid are as follows: industrial formic acid 0.5-1.5 g/L, remaining is water；
Then, tanning fatting agent EG-60(Smit&zoon is added) 1.0-2.0 g/l, softening agent TL(Smit&zoon) 1.0-4.0
G/l, processing time are 30-60 min,
Then, acrylic syntans RS-540(Smit&zoon is added) 1.0-4.0 g/l, 30-60 min is handled,
Then, phenol sulfonic acid syntans S(Smit&zoon is added) 1.0-4.0 g/l, 30-60 min is handled,
Then, the female chemical industry of Chrome-free poly-metals tanning agent ZT-601(gold is added) 5-15 g/l, 60-120 min is handled,
Then, acid bating enzyme ABL(Murphy & Son is added) 0.05-0.5 g/l, 2-4 h is handled,
Then, sodium bicarbonate 1-2 g/l is added, and divides 3-4 addition, adjusts pH to 3.9-4.4, intermittent rotary turns per hour
Dynamic 30 min, time are 10-24 h.
Preferably, in the step 11 neutralization procedure,
Firstly, adjusting neutralizer pH is 5.5-6.5, previous step treated fur is added；Neutralizer dosage is according in neutralizer
The mass ratio of water and fur is 20-40 addition；
The composition of the neutralizer are as follows: industrial sodium acetate 1-4 g/L neutralizes auxiliary agent NN-555(Smit&zoon) 1.0-4.0
G/l, acid bating enzyme ABL(Murphy & Son) 0.05-0.5 g/l, remaining is water
Then, at 30-40 DEG C of temperature, 120-180 min is handled.
Preferably, the step 12 fatliquoring steps are specific as follows:
Firstly, previous step treated fur is added in fat liquor, fat liquor dosage according to water in fat liquor and fur matter
Amount is than being that 20-40 is added；Then, at 50-60 DEG C of temperature, pH to 3.8-4.0 is adjusted, handles 120-180 min,
The composition of fat liquor are as follows:
Softening agent TL(Smit&zoon) 1.0-4.0 g/l,
The auspicious leather technology of fatting agent GF(moral) 1.0-4.0 g/l,
Fatting agent PD-990(Smit&zoon) 1.0-4.0 g/l,
Fatting agent YY-707(Smit&zoon) 1.0-4.0 g/l,
Fatting agent DPF(desai that chemical industry) 1.0-4.0 g/l,
Filler DR-686(Smit&zoon) 1.0-4.0 g/l,
Industrial formic acid 0.5-1.5 g/l.
Preferably, described Step 8: the pH field of activity of acid bating enzyme ABL is 1-7 in step 10 and step 11.
The present invention is directed to develop a kind of technology using Chrome-free poly-metals tanning agent preparation high-grade sheep clothes hair leather, pass through one
A whole set of process adjustments, obtain soft and full, feel and existing high-grade sheep clothes hair removes from office consistent hair leather product, have simultaneously
Hair color and the advantages of dermatotome color is pure white, water-fastness color inhibition, is particularly suitable for making high-grade true qualities and bright wool removes from office product.The skill
Art does not use chrome tanning agent, is avoided that the pollution of the three wastes containing chromium, prevents the harm of Cr VI；It can be effectively reduced in tanning processes useless
COD in water, while controlling the volatile organic matter of Mao Gezhong；Without aldehyde tanning agent, free formaldehyde will not be generated；Tanning effect is good
Good, shrinkage temperature can reach 90 DEG C or more, fully meet normal hair leather production to the needs of shrinkage temperature.This technology has
Wide application prospect can replace normal hair leather production completely.
Compared with prior art, the present invention beneficial effect is:
The sheep garment hair leather produced by ZT601 tanning and matched technique, the waste water COD content of tanning processes is low, easily
In processing, tannery does not use the substance containing aldehyde tanning agent, does not have free formaldehyde in product.In the same of process safety environmental protection
When, sheep's wool produced leather product is water-fastness, and dermatotome is soft and full, and feel is consistent with product at present on the market, dermatotome with
Phenomena such as hair color is pure white, and tempering yellowing will not occur for long-time storage is suitble to production white and the high-grade hair of light color to remove from office clothing
Product.
Specific embodiment
Below by specific embodiment the technical scheme of the present invention will be further described explanation.
If raw material employed in the embodiment of the present invention is raw material commonly used in the art without specified otherwise, implement
Method employed in example, is the conventional method of this field.
Embodiment 1:
A kind of Chrome-free poly-metals tanning agent preparation high-grade sheep clothes hair leather technique, comprising the following steps:
Step 1: rewetting,
Step 2: drying,
Step 3: cropping,
Step 4: main immersion,
Step 5: fleshing,
Step 6: degreasing,
Step 1 to step 6 is common process.
Step 7: softening pickling, softens the proportion of pickling liquid are as follows:
Weak organic acid Bascal S(BSAF) 1.2 g/l,
The auspicious leather technology of acid bating enzyme DVP(moral) or acid bating enzyme WB (the auspicious leather technology of moral) 4 g/l,
20 g/l of Nacl,
Remaining is water.
Steps are as follows:
Firstly, fur is added in softening pickling liquid, soften the dosage of pickling liquid according to the matter of water and fur in softening pickling liquid
For amount than carrying out for 30, adjusting temperature is 40 DEG C, handles 10h, while with intermittent rotary, rotating 6min per hour；
Then, pickling fatting agent CP-996(Smit&zoon is added wherein) 5.0g/l, fur pickling agent MN(desai that chemical industry)
10 g/l or the auspicious leather technology of auxiliary pickling agent PA(moral) 10 g/l, adjusting pH is 2.9, temperature is adjusted to 20 DEG C, processing 60
H, and with intermittent rotary, every 4 hours 60 min of rotation, skin takes horse and stands 7 out later；
Step 8: tanning, step is specific as follows:
Firstly, adjusting, tanning solution pH is 2.4, temperature is 35 DEG C, and the fur of previous step processing is added, and handles 60 min；Tanning solution
Dosage is 20 additions according to the mass ratio of water in tanning and fur；
The composition of tanning solution are as follows: 560 g/L of Nacl, industrial 3 g/L of formic acid, remaining is water；
Then, tanning fatting agent EG-60(Smit&zoon is added) 2.0 g/l and softening agent TL(Smit&zoon) 8.0 g/l, place
Manage 60 min；
Then, acrylic syntans RS-540(Smit&zoon is added) 2.0 g/l, 50 min are handled,
Then, phenol sulfonic acid syntans S(Smit&zoon is added) 7.0 g/l, 30 min are handled,
Then, the female chemical industry of Chrome-free poly-metals tanning agent ZT-601(gold is added) 20 g/l, 120 min are handled,
Then, acid bating enzyme ABL(Murphy & Son is added) 0.05 g/l, intermittent rotary rotates 20 min per hour, locates
15 h are managed,
Finally, 1.5 g/l of soda ash is added, and it is added three times, adjusts pH to 4.0, intermittent rotary rotates 30 min per hour, locates
Manage 8 h.
Step 9: wet-milling,
Step 10: retanning, retanning step is specific as follows:
Firstly, adjusting the pH to 3.0 of retanning liquid, temperature is 35 DEG C, is added previous step treated fur, handle 60 min, multiple
Owse dosage is 20 additions according to the mass ratio of water and fur in retanning liquid；
The composition of retanning liquid are as follows: industrial 1 g/L of formic acid, remaining is water；
Then, tanning fatting agent EG-60(Smit&zoon is added) 2.0 g/l, softening agent TL(Smit&zoon) 1.0 g/l, place
The reason time is 40 min,
Then, acrylic syntans RS-540(Smit&zoon is added) 4.0 g/l, 30 min are handled,
Then, phenol sulfonic acid syntans S(Smit&zoon is added) 3.0 g/l, 60 min are handled,
Then, the female chemical industry of Chrome-free poly-metals tanning agent ZT-601(gold is added) 5 g/l, 80 min are handled,
Then, acid bating enzyme ABL(Murphy & Son is added) 0.5 g/l, 2 h are handled,
Then, 1.5 g/l of sodium bicarbonate, and point 4 additions are added, adjusts pH to 3.9, intermittent rotary rotates 30 per hour
Min, time are 12 h.
Step 11: neutralizing, steps are as follows:
Firstly, adjusting neutralizer pH is 6.5, previous step treated fur is added；Neutralizer dosage according to water in neutralizer with
The mass ratio of fur is 20 additions；
The composition of the neutralizer are as follows: industrial 3 g/L of sodium acetate neutralizes auxiliary agent NN-555(Smit&zoon) 4.0 g/l, acid
Property macerating enzyme ABL(Murphy & Son) 0.05 g/l, remaining is water
Then, at 36 DEG C of temperature, 180 min are handled.
Step 12: stuffing, fatliquoring steps are specific as follows:
Firstly, previous step treated fur is added in fat liquor, fat liquor dosage according to water in fat liquor and fur matter
Amount for 20 than adding；Then, at 56 DEG C of temperature, pH to 4.0 is adjusted, handles 120 min,
The composition of fat liquor are as follows:
Softening agent TL(Smit&zoon) 2.0 g/l,
The auspicious leather technology of fatting agent GF(moral) 4.0 g/l,
Fatting agent PD-990(Smit&zoon) 1.0 g/l,
Fatting agent YY-707(Smit&zoon) 3.0 g/l,
Fatting agent DPF(desai that chemical industry) 4.0 g/l,
Filler DR-686(Smit&zoon) 1.0 g/l,
Industrial 1.0 g/l of formic acid.
Step 13: dry finishing,
Step 14: finished product.
Embodiment 2:
A kind of Chrome-free poly-metals tanning agent preparation high-grade sheep clothes hair leather technique, comprising the following steps:
Step 1: rewetting,
Step 2: drying,
Step 3: cropping,
Step 4: main immersion,
Step 5: fleshing,
Step 6: degreasing,
Step 1 to step 6 is common process.
Step 7: softening pickling, softens the proportion of pickling liquid are as follows:
Weak organic acid Bascal S(BSAF) 2 g/l,
The auspicious leather technology of acid bating enzyme DVP(moral) or acid bating enzyme WB (the auspicious leather technology of moral) 1 g/l,
23 g/l of Nacl,
Remaining is water.
Steps are as follows:
Firstly, fur is added in softening pickling liquid, soften the dosage of pickling liquid according to the matter of water and fur in softening pickling liquid
For amount than carrying out for 40, adjusting temperature is 30 DEG C, handles 14h, while with intermittent rotary, rotating 10min per hour；
Then, pickling fatting agent CP-996(Smit&zoon is added wherein) 1.0g/l, fur pickling agent MN(desai that chemical industry)
15 g/l or the auspicious leather technology of auxiliary pickling agent PA(moral) 15 g/l, adjusting pH is 2.4, temperature is adjusted to 25 DEG C, processing 72
H, and with intermittent rotary, every 4 hours 40 min of rotation, skin takes horse and stands 9 out later；
Step 8: tanning, step is specific as follows:
Firstly, adjusting, tanning solution pH is 2.5, temperature is 40 DEG C, and the fur of previous step processing is added, and handles 30 min；Tanning solution
Dosage is 30 additions according to the mass ratio of water in tanning and fur；
The composition of tanning solution are as follows: 80 g/L of Nacl, industrial 1 g/L of formic acid, remaining is water；
Then, tanning fatting agent EG-60(Smit&zoon is added) 3.0 g/l and softening agent TL(Smit&zoon) 12.0 g/l,
Handle 30 min；
Then, acrylic syntans RS-540(Smit&zoon is added) 5.0 g/l, 60 min are handled,
Then, phenol sulfonic acid syntans S(Smit&zoon is added) 2.0 g/l, 40 min are handled,
Then, the female chemical industry of Chrome-free poly-metals tanning agent ZT-601(gold is added) 30 g/l, 60 min are handled,
Then, acid bating enzyme ABL(Murphy & Son is added) 0.1 g/l, intermittent rotary rotates 20 min per hour, handles
24 h,
Finally, 0.5 g/l of soda ash is added, and point 4 additions, pH to 4.4 is adjusted, intermittent rotary rotates 30 min per hour, locates
Manage 5 h.
Step 9: wet-milling,
Step 10: retanning, retanning step is specific as follows:
Firstly, adjusting the pH to 3.2 of retanning liquid, temperature is 40 DEG C, is added previous step treated fur, handle 30 min, multiple
Owse dosage is 30 additions according to the mass ratio of water and fur in retanning liquid；
The composition of retanning liquid are as follows: industrial 1.5 g/L of formic acid, remaining is water；
Then, tanning fatting agent EG-60(Smit&zoon is added) 1.0 g/l, softening agent TL(Smit&zoon) 3.0 g/l, place
The reason time is 60 min,
Then, acrylic syntans RS-540(Smit&zoon is added) 1.0 g/l, 40 min are handled,
Then, phenol sulfonic acid syntans S(Smit&zoon is added) 4.0 g/l, 30 min are handled,
Then, the female chemical industry of Chrome-free poly-metals tanning agent ZT-601(gold is added) 10 g/l, 120 min are handled,
Then, acid bating enzyme ABL(Murphy & Son is added) 0.05 g/l, 3 h are handled,
Then, 2 g/l of sodium bicarbonate is added, and is added three times, pH to 4 is adjusted, intermittent rotary rotates 30 min per hour, when
Between be 24 h.
Step 11: neutralizing, steps are as follows:
Firstly, adjusting neutralizer pH is 5.5, previous step treated fur is added；Neutralizer dosage according to water in neutralizer with
The mass ratio of fur is 30 additions；
The composition of the neutralizer are as follows: industrial 4 g/L of sodium acetate neutralizes auxiliary agent NN-555(Smit&zoon) 1.0 g/l, acid
Property macerating enzyme ABL(Murphy & Son) 0.1 g/l, remaining is water
Then, at 40 DEG C of temperature, 120 min are handled.
Step 12: stuffing, fatliquoring steps are specific as follows:
Firstly, previous step treated fur is added in fat liquor, fat liquor dosage according to water in fat liquor and fur matter
Amount for 30 than adding；Then, under temperature 60 C, pH to 3.8 is adjusted, handles 160 min,
The composition of fat liquor are as follows:
Softening agent TL(Smit&zoon) 4.0 g/l,
The auspicious leather technology of fatting agent GF(moral) 1.0 g/l,
Fatting agent PD-990(Smit&zoon) 2.0 g/l,
Fatting agent YY-707(Smit&zoon) 4.0 g/l,
Fatting agent DPF(desai that chemical industry) 1.0 g/l,
Filler DR-686(Smit&zoon) 3.0 g/l,
Industrial 1.5 g/l of formic acid.
Step 13: dry finishing,
Step 14: finished product.
Embodiment 3:
A kind of Chrome-free poly-metals tanning agent preparation high-grade sheep clothes hair leather technique, comprising the following steps:
Step 1: rewetting,
Step 2: drying,
Step 3: cropping,
Step 4: main immersion,
Step 5: fleshing,
Step 6: degreasing,
Step 1 to step 6 is common process.
Step 7: softening pickling, softens the proportion of pickling liquid are as follows:
Weak organic acid Bascal S(BSAF) 1 g/l,
The auspicious leather technology of acid bating enzyme DVP(moral) or acid bating enzyme WB (the auspicious leather technology of moral) 2 g/l,
30 g/l of Nacl,
Remaining is water.
Steps are as follows:
Firstly, fur is added in softening pickling liquid, soften the dosage of pickling liquid according to the matter of water and fur in softening pickling liquid
Amount for 20 than carrying out, and adjusting temperature is 35 DEG C, and processing for 24 hours, while with intermittent rotary, rotates 5min per hour；
Then, pickling fatting agent CP-996(Smit&zoon is added wherein) 3.0g/l, fur pickling agent MN(desai that chemical industry)
20 g/l or the auspicious leather technology of auxiliary pickling agent PA(moral) 5g/l, adjusting pH is 2.5, temperature is adjusted to 30 DEG C, handles 48 h,
And with intermittent rotary, every 4 hours 50 min of rotation, skin takes horse and stands 10 out later；
Step 8: tanning, step is specific as follows:
Firstly, adjusting, tanning solution pH is 2.9, temperature is 30 DEG C, and the fur of previous step processing is added, and handles 40 min；Tanning solution
Dosage is 40 additions according to the mass ratio of water in tanning and fur；
The composition of tanning solution are as follows: 50 g/L of Nacl, industrial 2 g/L of formic acid, remaining is water；
Then, tanning fatting agent EG-60(Smit&zoon is added) 4.0 g/l and softening agent TL(Smit&zoon) 2.0 g/l, place
Manage 40 min；
Then, acrylic syntans RS-540(Smit&zoon is added) 7.0 g/l, 30 min are handled,
Then, phenol sulfonic acid syntans S(Smit&zoon is added) 3.0 g/l, 60 min are handled,
Then, the female chemical industry of Chrome-free poly-metals tanning agent ZT-601(gold is added) 15 g/l, 80 min are handled,
Then, acid bating enzyme ABL(Murphy & Son is added) 0.5 g/l, intermittent rotary rotates 20 min per hour, handles
10 h,
Finally, 1 g/l of soda ash is added, and point 4 additions, pH to 3.9 is adjusted, intermittent rotary rotates 30 min per hour, handles
6h。
Step 9: wet-milling,
Step 10: retanning, retanning step is specific as follows:
Firstly, adjusting the pH to 3.5 of retanning liquid, temperature is 30 DEG C, is added previous step treated fur, handle 40 min, multiple
Owse dosage is 40 additions according to the mass ratio of water and fur in retanning liquid；
The composition of retanning liquid are as follows: industrial 0.5 g/L of formic acid, remaining is water；
Then, tanning fatting agent EG-60(Smit&zoon is added) 1.5 g/l, softening agent TL(Smit&zoon) 4.0 g/l, place
The reason time is 30 min,
Then, acrylic syntans RS-540(Smit&zoon is added) 3.0 g/l, 60 min are handled,
Then, phenol sulfonic acid syntans S(Smit&zoon is added) 1.0 g/l, 40 min are handled,
Then, the female chemical industry of Chrome-free poly-metals tanning agent ZT-601(gold is added) 15 g/l, 60 min are handled,
Then, acid bating enzyme ABL(Murphy & Son is added) 0.2 g/l, 4 h are handled,
Then, 1 g/l of sodium bicarbonate, and point 4 additions are added, pH to 4.4 is adjusted, intermittent rotary rotates 30 min per hour,
Time is 10 h.
Step 11: neutralizing, steps are as follows:
Firstly, adjusting neutralizer pH is 6, previous step treated fur is added；Neutralizer dosage is according to neutralizer Zhong Shui and hair
The mass ratio of skin is 40 additions；
The composition of the neutralizer are as follows: industrial 1 g/L of sodium acetate neutralizes auxiliary agent NN-555(Smit&zoon) 2.0 g/l, acid
Property macerating enzyme ABL(Murphy & Son) 0.5 g/l, remaining is water
Then, at 30 DEG C of temperature, 150 min are handled.
Step 12: stuffing, fatliquoring steps are specific as follows:
Firstly, previous step treated fur is added in fat liquor, fat liquor dosage according to water in fat liquor and fur matter
Amount for 40 than adding；Then, under temperature 50 C, pH to 3.9 is adjusted, handles 180 min,
The composition of fat liquor are as follows:
Softening agent TL(Smit&zoon) 1.0 g/l,
The auspicious leather technology of fatting agent GF(moral) 2.0 g/l,
Fatting agent PD-990(Smit&zoon) 4.0 g/l,
Fatting agent YY-707(Smit&zoon) 1.0 g/l,
Fatting agent DPF(desai that chemical industry) 2.0 g/l,
Filler DR-686(Smit&zoon) 4.0 g/l,
Industrial 0.5 g/l of formic acid.
Step 13: dry finishing,
Step 14: finished product.
Embodiment 4
A kind of Chrome-free poly-metals tanning agent preparation high-grade sheep clothes hair leather technique, comprising the following steps:
Step 1, rewetting: same to common process；
Step 2, drying；
Step 3, cropping；
Step 4, main immersion: same to common process；
Step 5, fleshing；
Step 6, degreasing: same to common process；
Step 7 softens pickling: the composition of softening pickling liquid are as follows: weak organic acid Bascal S(BSAF) 1.2 g/l, acid bating
The auspicious leather technology of enzyme DVP(moral) 3 g/l, industrial 20 g/l of neutral salt, remaining is water；Soften pickling liquid dosage according to softening pickling
The mass ratio of water and fur is 20 additions in liquid；Adjusting temperature is 30 DEG C, is then added hide, and the time is 10 h, intermittent rotary,
5 min are rotated per hour, and pickling fatting agent CP-996(Smit&zoon is then added) 1.5 g/l, fur pickling agent MN(desai
That chemical industry) 10 g/l, pH to 2.5 is adjusted, reducing temperature is 25 DEG C, and the time is 72 h, and intermittent rotary rotates 40 in every 4 hours
Min, skin is taken horse standing 7 days or more out later；
Step 8, tanning: the composition of tanning solution are as follows: industrial 50 g/L of neutral salt, industrial 1.5 g/L of formic acid, remaining is
Water；Tanning solution dosage is 20 additions according to the mass ratio of water in tanning and fur；PH to 2.9 is adjusted, temperature is 30 DEG C, and skin is added
, the time is 60 min, and tanning fatting agent EG-60(Smit&zoon is then added) 2.0 g/l, softening agent TL(Smit&zoon)
6 g/l, time are 60 min, acrylic syntans RS-540(Smit&zoon) 2.0 g/l, the time is 60 min, phenol sulfonic acid
Syntans S(Smit&zoon) 2 g/l, the time is 60 min, the female chemical industry of Chrome-free poly-metals tanning agent ZT-601(gold) 20 g/l,
Time is 120 min, acid bating enzyme ABL(Murphy & Son), 0.05 g/l, and intermittent rotary rotates 20 min per hour, when
Between be 15 h, 1.5 g/l of soda ash, points of 4 times additions adjust pH to 4.4, and intermittent rotary rotates 30 min, time 8 per hour
h；
Step 9, wet-milling；
Step 10, retanning: the composition of retanning liquid are as follows: industrial 0.8 g/L of formic acid, remaining is water；Tanning solution dosage is according to tanning
The mass ratio of middle water and fur is 20 additions；PH to 3.3 is adjusted, temperature is 30 DEG C, and hide is added, and the time is 30 min, then
Be added tanning fatting agent EG-60(Smit&zoon) 1 g/l, softening agent TL(Smit&zoon) 1 g/l, the time be 60 min, third
Olefin(e) acid syntans RS-540(Smit&zoon) 1 g/l, the time is 60 min, phenol sulfonic acid syntans S(Smit&zoon) 1
G/l, time are 60 min, the female chemical industry of Chrome-free poly-metals tanning agent ZT-601(gold) 15 g/l, the time is 120 min, acid bating
Enzyme ABL(Murphy & Son) 0.05 g/l, the time is 4 h, 1 g/l of sodium bicarbonate, and point 4 additions adjust pH to 3.9, and interval turns
It is dynamic, 30 min are rotated per hour, and the time is 10 h；
Step 11 neutralizes: the composition of neutralizer are as follows: neutralizer dosage adds according to the mass ratio of water in tanning and fur for 20
Add；Industrial 4 g/L of sodium acetate neutralizes auxiliary agent NN-555(Smit&zoon) 4 g/l, acid bating enzyme ABL(Murphy &
Son) 0.1 g/l adjusts pH to 6.5, and at 35 DEG C of temperature, the time is 180 min；
Step 12, stuffing: the composition of fat liquor are as follows: fat liquor dosage adds according to the mass ratio of water in tanning and fur for 20
Add；Softening agent TL(Smit&zoon) 3 g/l, the auspicious leather technology of fatting agent GF(moral) 4 g/l, fatting agent PD-990(Smit&
Zoon) 4 g/l, fatting agent YY-707(Smit&zoon) 2 g/l, fatting agent DPF(desai that chemical industry) 2 g/l, filler DR-
686(Smit&zoon) 4 g/l, at 55 DEG C of temperature, the time is 180 min, industrial 1.8 g/l of formic acid, adjusts pH to 3.8；
Step 13, dry finishing: same to common process；
Step 14, finished product.
Embodiment 5
A kind of Chrome-free poly-metals tanning agent preparation high-grade sheep clothes hair leather technique, comprising the following steps:
Step 1, rewetting: same to common process；
Step 2, drying；
Step 3, cropping；
Step 4, main immersion: same to common process；
Step 5, fleshing；
Step 6, degreasing: same to common process；
Step 7 softens pickling: the composition of softening pickling liquid are as follows: weak organic acid Bascal S(BSAF) 2 g/l, acid bating enzyme
The auspicious leather technology of WB(moral) 4 g/l, industrial 25 g/l of neutral salt, remaining is water；Soften pickling liquid dosage according to softening pickling liquid
The mass ratio of middle water and fur is 25 additions；Adjusting temperature is 35 DEG C, is then added hide, and the time is 15 h, intermittent rotary, often
10 min of hour rotation, are then added pickling fatting agent CP-996(Smit&zoon) 2.5 g/l, the auspicious leather of auxiliary pickling agent PA(moral
Science and technology) 10 g/l, adjust pH to 2.4, reduce temperature be 20 DEG C, the time be 60 h, intermittent rotary, every 4 hours 50 min of rotation,
Go out skin later to take horse standing 7 days or more；
Step 8, tanning: the composition of tanning solution are as follows: industrial 60 g/L of neutral salt, industrial 1 g/L of formic acid, remaining is water；
Tanning solution dosage is 25 additions according to the mass ratio of water in tanning and fur；PH to 2.7 is adjusted, temperature is 35 DEG C, hide is added,
Time is 40 min, and tanning fatting agent EG-60(Smit&zoon is then added) 3 g/l, softening agent TL(Smit&zoon) 8 g/
L, time are 40 min, acrylic syntans RS-540(Smit&zoon) 3.0 g/l, the time is 40 min, phenol sulfonic acid synthesis
Tanning agent S(Smit&zoon) 4.0 g/l, the time is 40 min, the female chemical industry of Chrome-free poly-metals tanning agent ZT-601(gold) 30 g/l, when
Between be 90 min, acid bating enzyme ABL(Murphy & Son) 0.1 g/l, intermittent rotary rotates 20 min per hour, and the time is
15 h, 1.5 g/l of soda ash, point 4 additions adjust pH to 4.4, and intermittent rotary rotates 30 min per hour, and the time is 8 h；
Step 9, wet-milling；
Step 10, retanning: the composition of retanning liquid are as follows: industrial 1.5 g/L of formic acid, remaining is water；Tanning solution dosage is according to tanning
The mass ratio of middle water and fur is 30 additions；PH to 3.0 is adjusted, temperature is 33 DEG C, and hide is added, and the time is 50 min, then
Tanning fatting agent EG-60(Smit&zoon is added) 1.5 g/l, softening agent TL(Smit&zoon) 1.5 g/l, the time 50
Min, acrylic syntans RS-540(Smit&zoon) 1.5 g/l, the time is 50 min, phenol sulfonic acid syntans S(Smit&
Zoon) 1.5 g/l, time are 50 min, the female chemical industry of Chrome-free poly-metals tanning agent ZT-601(gold) 5 g/l, the time is 90 min, acid
Property macerating enzyme ABL(Murphy & Son) 0.1 g/l, the time is 4 h, 2 g/l of sodium bicarbonate, is added three times, adjust pH to 4.4,
Intermittent rotary rotates 30 min per hour, and the time is 20 h；
Step 11 neutralizes: the composition of neutralizer are as follows: neutralizer dosage adds according to the mass ratio of water in tanning and fur for 25
Add；Industrial 4 g/L of sodium acetate neutralizes auxiliary agent NN-555(Smit&zoon) 2 g/l, acid bating enzyme ABL(Murphy &
Son) 0.1 g/l adjusts pH to 6, and at 33 DEG C of temperature, the time is 150 min；
Step 12, stuffing: the composition of fat liquor are as follows: fat liquor dosage adds according to the mass ratio of water in tanning and fur for 25
Add；Softening agent TL(Smit&zoon) 1.5 g/l, the auspicious leather technology of fatting agent GF(moral) 1.5 g/l, fatting agent PD-990
(Smit&zoon) 3 g/l, fatting agent YY-707(Smit&zoon) 3 g/l, fatting agent DPF(desai that chemical industry) 3 g/l, filling
Agent DR-686(Smit&zoon) 1 g/l, under temperature 50 C, the time is 150 min, industrial 1.5 g/l of formic acid, adjusts pH
To 3.8；
Step 13, dry finishing: same to common process；
Step 14, finished product.
Embodiment 6
A kind of Chrome-free poly-metals tanning agent preparation high-grade sheep clothes hair leather technique, comprising the following steps:
Step 1, rewetting: same to common process；
Step 2, drying；
Step 3, cropping；
Step 4, main immersion: same to common process；
Step 5, fleshing；
Step 6, degreasing: same to common process；
Step 7 softens pickling: the composition of softening pickling liquid are as follows: weak organic acid Bascal S(BSAF) 2 g/l, acid bating enzyme
The auspicious leather technology of DVP(moral) 2.5 g/l, industrial 30 g/l of neutral salt, remaining is water；Soften pickling liquid dosage according to softening pickling
The mass ratio of water and fur is 40 additions in liquid；Adjusting temperature is 36 DEG C, is then added hide, and the time is 24 h, intermittent rotary,
10 min are rotated per hour, and pickling fatting agent CP-996(Smit&zoon is then added) 4 g/l, fur pickling agent MN(desai that
Chemical industry) 20 g/l, adjust pH to 2.4, reduce temperature be 20 DEG C, the time be 72 h, intermittent rotary, every 4 hours 60 min of rotation,
Go out skin later to take horse standing 7 days or more；
Step 8, tanning: the composition of tanning solution are as follows: industrial 80 g/L of neutral salt, industrial 3 g/L of formic acid, remaining is water；
Tanning solution dosage is 20 additions according to the mass ratio of water in tanning and fur；PH to 2.4 is adjusted, temperature is 40 DEG C, hide is added,
Time is 60 min, and tanning fatting agent EG-60(Smit&zoon is then added) 4 g/l, softening agent TL(Smit&zoon) 8 g/
L, time are 60 min, acrylic syntans RS-540(Smit&zoon) 7 g/l, the time is 60 min, and phenol sulfonic acid synthesizes tan
Agent S(Smit&zoon) 7.0 g/l, the time is 60 min, the female chemical industry of Chrome-free poly-metals tanning agent ZT-601(gold) and 15 g/l, the time
For 120 min, acid bating enzyme ABL(Murphy & Son), 0.15 g/l, intermittent rotary rotates 20 min per hour, and the time is
24 h, 1.5 g/l of soda ash, point 4 additions adjust pH to 4.2, and intermittent rotary rotates 30 min per hour, and the time is 6 h；
Step 9, wet-milling；
Step 10, retanning: the composition of retanning liquid are as follows: industrial 1.5 g/L of formic acid, remaining is water；Tanning solution dosage is according to tanning
The mass ratio of middle water and fur is 20 additions；PH to 3.0 is adjusted, temperature is 40 DEG C, and hide is added, and the time is 60 min, then
Be added tanning fatting agent EG-60(Smit&zoon) 2 g/l, softening agent TL(Smit&zoon) 4 g/l, the time be 60 min, third
Olefin(e) acid syntans RS-540(Smit&zoon) 4 g/l, the time is 60 min, phenol sulfonic acid syntans S(Smit&zoon) 4
G/l, time are 60 min, the female chemical industry of Chrome-free poly-metals tanning agent ZT-601(gold) 5 g/l, the time is 120 min, acid bating enzyme
ABL(Murphy & Son) 0.15 g/l, the time is 4 h, 2 g/l of sodium bicarbonate, and point 4 additions adjust pH to 4.2, and interval turns
It is dynamic, 30 min are rotated per hour, and the time is 22 h；
Step 11 neutralizes: the composition of neutralizer are as follows: neutralizer dosage adds according to the mass ratio of water in tanning and fur for 20
Add；Industrial 3 g/L of sodium acetate neutralizes auxiliary agent NN-555(Smit&zoon) 3g/l, acid bating enzyme ABL(Murphy & Son)
0.15 g/l adjusts pH to 6.5, and at 40 DEG C of temperature, the time is 180 min；
Step 12, stuffing: the composition of fat liquor are as follows: fat liquor dosage adds according to the mass ratio of water in tanning and fur for 20
Add；Softening agent TL(Smit&zoon) 4 g/l, the auspicious leather technology of fatting agent GF(moral) 4 g/l, fatting agent PD-990(Smit&
Zoon) 4 g/l, fatting agent YY-707(Smit&zoon) 4 g/l, fatting agent DPF(desai that chemical industry) 4 g/l, filler DR-
686(Smit&zoon) 4 g/l, at 56 DEG C of temperature, the time is 180 min, industrial 1.5 g/l of formic acid, adjusts pH to 3.9；
Step 13, dry finishing: same to common process；
Step 14, finished product.
It carries out COD assay to the waste water of embodiment 1-6 to show, COD amount is 50-80mg/L.
Content of formaldehyde is 0.
After carrying out repeatedly (5 times or more) washings to sheep's wool leather product, the product of embodiment 1-6 does not occur quality and asks
Topic.After washing, dermatotome is still soft and full, and feel is not substantially reduced.Dermatotome and hair color still maintain pure white, pass through
Phenomena such as simulating storage shows after 3 years, tempering yellowing does not occur.
Through detecting, the shrinkage temperature of each product can reach 90 DEG C or more, fully meet normal hair leather production to contraction
The needs of temperature.
The results show that the pelage quality that the present invention is handled is superior, and solve what the application was proposed to a certain extent
Technical problem.
Other detection datas are as follows:
The detection data of decomposable nocuousness aromatic amine dyestuff is as follows:
" being not detected " represents measured value≤30mg/kg；
| Free formaldehyde | mg/kg | ≤300 | 11.1 |
Sundry item achievement data
The above following standard of test basis:
GB/T19941-2005 " measurement of leather and fur chemical test content of formaldehyde "
GB/T19942-2005 " measurement of leather and fur chemical test forbidding azo dyes "
QB/T2536-2007 " Mao Ge "
QB/TI269-2012 " measurement of fur physics and mechanical test tensile strength and elongation "
QB/T1271-2012 " measurement of fur physics and mechanical test shrinkage temperature "
QB/T1327-1991 " leather surface colour fastness test test method "
The following standard of judgment basis:
QB/T2536-2007 " Mao Ge "
It is shown by above data, the sheep clothes hair leather product of the preparation of technique used by the application has reached the advanced matter of industry
Amount is horizontal.
Claims (6)
1. a kind of Chrome-free poly-metals tanning agent prepares high-grade sheep clothes hair leather technique, which comprises the following steps:
Step 1: rewetting,
Step 2: drying,
Step 3: cropping,
Step 4: main immersion,
Step 5: fleshing,
Step 6: degreasing,
Step 7: softening pickling,
Firstly, fur is added in softening pickling liquid, soften the dosage of pickling liquid according to the matter of water and fur in softening pickling liquid
For amount than being that 20-40 is carried out, adjusting temperature is 30-40 DEG C, handles 10-24h, while with intermittent rotary, rotating 5- per hour
10min；
Then, pickling fatting agent CP-996 1.0-5.0g/l, fur pickling agent MN 10-20 g/l or pickling are added wherein
Auxiliary agent PA 5-15 g/l, adjusting pH are 2.4-2.9, and temperature is adjusted to 20-30 DEG C, handle 48-72 h, and turn with interval
Dynamic, every 4 hours rotation 40-60 min, skin is taken horse standing 7 days or more out later；
Step 8: tanning,
Step 9: wet-milling,
Step 10: retanning,
Step 11: neutralize,
Step 12: stuffing,
Step 13: dry finishing,
Step 14: finished product.
2. Chrome-free poly-metals tanning agent according to claim 1 prepares high-grade sheep clothes hair leather technique, which is characterized in that step
Soften the proportion of pickling liquid in rapid seven are as follows:
Weak organic acid Bascal S 1-2 g/l,
Acid bating enzyme DVP or acid bating enzyme WB 1-4 g/l,
Industrial neutral salt 20-30 g/l,
Remaining is water.
3. Chrome-free poly-metals tanning agent according to claim 1 prepares high-grade sheep clothes hair leather technique, which is characterized in that step
Rapid eight tannings step is specific as follows:
Firstly, adjusting, tanning solution pH is 2.4-2.9, temperature is 30-40 DEG C, and the fur of previous step processing is added, and handles 30-60
min；Tanning solution dosage is 20-40 addition according to the mass ratio of water in tanning and fur；
The composition of tanning solution are as follows: industrial neutral salt 50-80 g/L, industrial formic acid 1-3 g/L, remaining is water；
Then, tanning fatting agent EG-60 2.0-4.0 g/l and softening agent TL 2.0-12.0 g/l is added, handles 30-60
min；
Then, acrylic syntans RS-540 2.0-7.0 g/l is added, handles 30-60 min,
Then, phenol sulfonic acid syntans S 2.0-7.0 g/l is added, handles 30-60 min,
Then, Chrome-free poly-metals tanning agent ZT-601 15-30 g/l is added, handles 60-120 min,
Then, acid bating enzyme ABL 0.05-0.5 g/l is added, intermittent rotary rotates 20 min per hour, handles 10-24
H,
Finally, soda ash 0.5-1.5 g/l is added, and divide 3-4 addition, adjusts pH to 3.9-4.4, intermittent rotary turns per hour
Dynamic 30 min, handle 5-8 h.
4. Chrome-free poly-metals tanning agent according to claim 1 prepares high-grade sheep clothes hair leather technique, which is characterized in that institute
It is specific as follows to state retanning step:
Firstly, adjust the pH to 3.0-3.5 of retanning liquid, temperature is 30-40 DEG C, be added previous step treated fur, handle 30-
60 min, retanning liquid dosage are 20-40 addition according to the mass ratio of water and fur in retanning liquid；
The composition of retanning liquid are as follows: industrial formic acid 0.5-1.5 g/L, remaining is water；
Then, tanning fatting agent EG-60 1.0-2.0 g/l, softening agent TL 1.0-4.0 g/l is added, the processing time is 30-60
Min,
Then, acrylic syntans RS-540 1.0-4.0 g/l is added, 30-60 min is handled,
Then, phenol sulfonic acid syntans S 1.0-4.0 g/l is added, 30-60 min is handled,
Then, Chrome-free poly-metals tanning agent ZT-601 5-15 g/l is added, 60-120 min is handled,
Then, acid bating enzyme ABL 0.05-0.5 g/l is added, 2-4 h is handled,
Then, sodium bicarbonate 1-2 g/l is added, and divides 3-4 addition, adjusts pH to 3.9-4.4, intermittent rotary turns per hour
Dynamic 30 min, time are 10-24 h.
5. Chrome-free poly-metals tanning agent according to claim 1 prepares high-grade sheep clothes hair leather technique, which is characterized in that institute
It states in neutralization procedure,
Firstly, adjusting neutralizer pH is 5.5-6.5, previous step treated fur is added；Neutralizer dosage is according in neutralizer
The mass ratio of water and fur is 20-40 addition；
The composition of the neutralizer are as follows: industrial sodium acetate 1-4 g/L neutralizes auxiliary agent NN-555 1.0-4.0 g/l, acid soft
Change enzyme ABL 0.05-0.5 g/l, remaining is water
Then, at 30-40 DEG C of temperature, 120-180 min is handled.
6. Chrome-free poly-metals tanning agent according to claim 1 prepares high-grade sheep clothes hair leather technique, which is characterized in that institute
It is specific as follows to state step 12 fatliquoring steps:
Firstly, previous step treated fur is added in fat liquor, fat liquor dosage according to water in fat liquor and fur matter
Amount is than being that 20-40 is added；Then, at 50-60 DEG C of temperature, pH to 3.8-4.0 is adjusted, handles 120-180 min,
The composition of fat liquor are as follows:
Softening agent TL 1.0-4.0 g/l,
Fatting agent GF 1.0-4.0 g/l,
Fatting agent PD-990 1.0-4.0 g/l,
Fatting agent YY-707 1.0-4.0 g/l,
Fatting agent DPF 1.0-4.0 g/l,
Filler DR-686 1.0-4.0 g/l,
Industrial formic acid 0.5-1.5 g/l.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101372717A (en) * | 2008-10-15 | 2009-02-25 | 温州大学 | Method for tanning sheep fur leather using non-chromium metal composite tanning agent |
| CN101381782A (en) * | 2008-10-15 | 2009-03-11 | 温州大学 | Method for tanning ultrathin sheepskin garment leather using non-chromium metal composite tanning agents |
| CN104313199A (en) * | 2014-10-28 | 2015-01-28 | 北京泛博化学股份有限公司 | Method of preparing sheepskin clothing face garment leather with small liquor ratio |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101372717A (en) * | 2008-10-15 | 2009-02-25 | 温州大学 | Method for tanning sheep fur leather using non-chromium metal composite tanning agent |
| CN101381782A (en) * | 2008-10-15 | 2009-03-11 | 温州大学 | Method for tanning ultrathin sheepskin garment leather using non-chromium metal composite tanning agents |
| CN104313199A (en) * | 2014-10-28 | 2015-01-28 | 北京泛博化学股份有限公司 | Method of preparing sheepskin clothing face garment leather with small liquor ratio |
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