CN106636487B - Injection formula method for leather-making - Google Patents
Injection formula method for leather-making Download PDFInfo
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- CN106636487B CN106636487B CN201610668097.2A CN201610668097A CN106636487B CN 106636487 B CN106636487 B CN 106636487B CN 201610668097 A CN201610668097 A CN 201610668097A CN 106636487 B CN106636487 B CN 106636487B
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- hide
- jet pipe
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C1/00—Chemical treatment prior to tanning
- C14C1/06—Facilitating unhairing, e.g. by painting, by liming
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention discloses a kind of injection formula method for leather-making, are related to leather, for solving the problems, such as that conventional method such as is also easy to produce asperities, stays hair root at the quality drawback.It includes following technique: spray alkali, it stands, machinery depilation, the spray alkali sprays lye water column using drive nozzle, liquid alkaline spurts into hide papillaris pars by flesh noodles, Back Up is presented in jet stream and hide density, and X, Y, Z three-dimensional of sulphion and neighbouring keratin fast hydrolyzing, hair root are hydrolyzed from inside.It provides one kind and column sodium sulfide solution is projected by nozzle, fat deposit is directly injected into papillaris pars from skin and flesh face, realizes sulfur-bearing and high protein sewage zero-discharge.The ox hair taken off has utility value, realizes cleanning tan leater because not being infected with sulfur-bearing liquid.
Description
Technical field
The present invention relates to leathers, are injection formula method for leather-making specifically.
Background technique
Traditional ox-hide depilation, is that hide is put into rotary drum, in vulcanized sodium bath foam, is made using potential difference and osmotic pressure
With, make sulphion through epidermis immerse it is intradermal, hydrolyze hair follicle and lose hair or feathers, out when skin, all kinds of materials and slag wool are discharged together, vulcanization
Sodium utilization only has 60%~80%, and draining toxicity is big, and suspended matter is more, generates large amount of sewage and sludge, blowdown account for total amount
75%, it is the main pollution sources of global leather industry, though once there are the techniques such as enzymatic depilation method, because of the difficult control of operation, is also easy to produce mass defect,
It promotes not open, still needs to carry out in rotary drum, sewage is still very much.
Existing ox-hide front travel: former skin → washing → fleshing → immersion → depilation → liming → washing → multiple ash → cuts open
Layer.The above-mentioned stage, other process must all carry out in rotary drum except fleshing and in addition to cuing open layer.
Existing method for leather-making has the following disadvantages, and first, since hair shaft periphery scale layer, hair quality layer chemical property are steady
Gu than grain collagen more resistant to hydrolysis, sodium sulfide solution hydrolyzes grain layer first, and so that epidermis expansion hair root is squeezed
Firmly, subsequent sulphion is not into going, and in a tubular form, hair root does not fall serious person's hide, though have first plus the Bao Maotuo of lime and liming agent
Mao Fa still inevitably occurs loose side, hair root, cuticula is stayed the quality accidents such as not to fall.
Second, 1~1.5T/ of general process hides water consumption, above-mentioned front travel accounts for the 70~75% of total amount, immersion to depilation work
Sequence accounts for 30% of total amount or so, draining containing a large amount of gluey protein that flocculate, pH value up to 9~12, into sedimentation basin after discharge a large amount of sulphur
Change hydrogen poison gas, atherosclerotic sediment easily blocks pipeline, and aeration resistance is big, and biochemical treatment is costly.
Third, sulfide continues to hydrolyze in sedimentation basin, and residual bulk volume expansion increases to original more than ten times, and water body is sticky, takes off
Moisture content still surpasses 80% after water, because sulfur-bearing poison, every more than ten kilograms of skin of a large amount of sludge, do fertilizer, pad roadbed it is unqualified, burn
Dioxin is generated, landfill cover soil leads to the field crops Bu Chang, persistently distributes stench.
Summary of the invention
A kind of by nozzle injection column sodium sulfide solution object of the present invention is to be intended to provide, from skin and flesh face, fat deposit is direct
Inject the injection formula method for leather-making of papillaris pars.
To realize the above-mentioned technical purpose, The technical solution adopted by the invention is as follows:
Injection formula method for leather-making, including following technique: spray alkali is stood, machinery depilation, and the spray alkali is sprayed using drive nozzle
Lye water column out, liquid alkaline spurt into hide papillaris pars by flesh noodles, and jet stream and hide density are presented Back Up, X, Y of sulphion,
Z three-dimensional and neighbouring keratin fast hydrolyzing, hair root are hydrolyzed from inside.
By adopting the above technical scheme, the quality drawback such as the asperities of conventional method is not generated, stays hair root, only to intradermal injection sulphur
Solution realizes sulfur-bearing and high protein sewage zero-discharge, and for the ox hair taken off because not being infected with sulfur-bearing liquid, utility value is high, realizes clear
Clean process hides.
It further limits, the drive nozzle perpendicular to row's nozzle unit that transmission network designs by forming, the pressure
Nozzle rear end is connected to stainless steel high-pressure pump, and the sulphur-containing solution that high-pressure pump comes projects a row by the drive nozzle of micropore shape after filtering
Water column, transmission network send skin, and flesh noodles passes through water column towards drive nozzle.
It further limits, the nozzle unit spacing 12-18mm, divides left-and-right spiral to arrange in the nozzle unit, spiral
10 ° to 50 ° of lift angle, the drive nozzle includes left jet pipe and right jet pipe, the left a length of 3.6m of jet pipe, the left jet pipe middle section
1.2 meters of dress nozzles, two 2.4 meters of outer segments are without nozzle；The a length of 3.6m of right jet pipe, described 2.4 meters of dress nozzles of right two outer segment of jet pipe,
1.2 meters of middle section is without nozzle.
It is arranged using the isosceles triangle of helix angle, it is poor to adapt to the thin position of webbing in hide.In addition, depilation operation is not
It is carried out in soak, hide buttocks is intensive, and tripe the part between the ribs and the hips portion is sparse, is cooperated using left section and right outer segment, in conjunction with hide thickness
Degree, the sulfur-bearing water column that nozzle unit projects enter lamina reticularis by flesh noodles, sulfur molecule and adjoin hide fiber X, Y, Z three-dimensional knot
It closes, accelerates infiltration, hydrolysis rate, machinery depilation after loosening from hair shaft root realizes sewage zero-discharge.
It further limits, the left jet pipe is connected to high concentration high-pressure pump, and the right jet pipe is connected to low concentration high-pressure pump.
It further limits, the hopper includes high concentration alkali liquid bath, low concentration alkali liquid bath, and high concentration pumping system is low dense
Pumping system is spent, high-concentration alkali liquor is supplied left jet pipe by the high concentration pumping system, and the low concentration pumping system is low-concentration alkali liquor
Supply right jet pipe.
It further limits, the high concentration pumping system uses high pressure pump motor, and the high pressure pump motor is by frequency converter
Control.
The sulphur-containing solution that high concentration pumping system pump comes, projects a drainage column by micropore nozzle after filtering, what transmission network was sent
Hide flesh noodles towards nozzle by water column, sulphur-containing solution inject it is intradermal, jet stream can according to hide size, thickness, the difference of density, with
When change pressure, and high concentration alkali liquid bath and low concentration alkali liquid bath are set, so that hide uniformly penetrating.
It further limits, is equipped with stainless steel collector tube below the drive nozzle, the collector tube is connected to lautertuns.
Further limit, before the spray alkali technique be equipped with flattening process, the flattening process use open and flat roller, main carrying roller,
For controlling the lifting cylinder of open and flat roller lifting, the open and flat roller is set to above hide, and the main carrying roller is set to below hide, institute
Stating open and flat roller includes left open and flat roller and right open and flat roller, and the open and flat roller surface in a left side is equipped with stainless steel spiral blade, and the right side is open and flat
Roller surface is equipped with stainless steel spiral blade, behind the excessively main carrying roller highest point in the hide front, Zuo Pingzhan roller dextrorotation, by hide front end
Fold even up, it is sturdy with transmission network；The hide front end has just enter into the inlet zone of left jet pipe, and two open and flat rollers are in lifting cylinder control
Under system, using pin shaft as centre swinging, Zuo Pingzhan roller is moved up, and right open and flat roller decline, right open and flat roller is left-handed, by remaining hide exhibition
It is flat.
By left open and flat roller and right open and flat roller, hide is flattened, so that hide corrugationless enters inlet zone.
It further limits, the standing technique, after liquid alkaline spurts into leather papillaris pars by flesh noodles, stands 1.8-2.3 hours.
The present invention projects column sodium sulfide solution compared with prior art, by nozzle, and from skin and flesh face, fat deposit is directly injected into cream
Head layer, stays 10% epidermis impermeable, because of jet stream and the Back Up of hide fiber density, 90% section moment is enriched, sulphion
X, Y, Z three-dimensional hydrolyze loosening from root, push away through scudding machine with keratin fast hydrolyzing, standing 1.8-2.3 hours, hair is adjoined
It scrapes, just loses hair or feathers from root, depilation is clean, and product quality is high, and process cycle shortens, which only vulcanizes alkali soluble to intradermal injection
Liquid, redundant solution is recyclable to be recycled, and the ox hair taken off can be used for felt, protein feed etc., obtain because not being infected with sodium sulfide
Economic benefit is conducive to lixivium and is recycled because the suspended matters such as sulphion, hairless protein are greatly decreased in later period liming process sewage,
And the precipitation of white lime keeps sewage treatment easily up to standard, achieves the cleaning life that water consumption is few, and zero blowdown is easy to operate, bears interest
Produce effect.
Detailed description of the invention
The present invention can be further illustrated by the nonlimiting examples that attached drawing provides；
Fig. 1 is the three-dimensional stock schematic diagram of the present invention；
Main element symbol description is as follows:
Drive nozzle 1, hide papillaris pars 2, transmission network 3, left jet pipe 4, right jet pipe 5, main carrying roller 6, lifting cylinder 7, Zuo Ping
Open up roller 8, right open and flat roller 9, hair root 10, into skin rod 11, roller 12 out.
Specific embodiment
In order to make those skilled in the art that the present invention may be better understood, with reference to the accompanying drawings and examples to this hair
Bright technical solution further illustrates.
Embodiment one,
As shown in Figure 1, injecting formula method for leather-making, including following technique, alkali is sprayed, is stood, machinery depilation, spray alkali uses pressure
Nozzle 1 sprays lye water column, and liquid alkaline spurts into hide papillaris pars 2 by flesh noodles, and jet stream and hide density are presented Back Up, sulphur from
X, Y, Z three-dimensional of son and neighbouring keratin fast hydrolyzing, hair root 10 are hydrolyzed from inside.
It should be noted that traditional technique is, former skin → washing → fleshing → immersion → depilation → liming → washing →
Multiple ash → cut open layer.
The technique of the technical program is that former skin → washing → fleshing → spray alkali → standing → machinery depilation → cuts open layer → multiple ash
→ washing.
For drive nozzle 1 by forming perpendicular to row's nozzle unit that transmission network 3 designs, the connection of 1 rear end of drive nozzle is stainless
Steel high-pressure pump, the sulphur-containing solution that high-pressure pump comes project a drainage column by the drive nozzle 1 of micropore shape after filtering, and transmission network 3 is sent
Skin, flesh noodles pass through water column towards drive nozzle 1.
Nozzle unit spacing 12mm, nozzle unit divide left-and-right spiral to arrange, and 40 ° of helix angle, drive nozzle includes left spray
Pipe 4 and right jet pipe 5, a length of 3.6m of left jet pipe 4,1.2 meters of left 4 middle section of jet pipe dress nozzle, two 2.4 meters of outer segments are without nozzle；Right jet pipe 5
A length of 3.6m, 5 liang of right jet pipe, 2.4 meters of outer segment dress nozzle, 1.2 meters of middle section is without nozzle.
Left jet pipe 4 is connected to high concentration high-pressure pump, and right jet pipe 5 is connected to low concentration high-pressure pump.
Hopper includes high concentration alkali liquid bath, low concentration alkali liquid bath, high concentration pumping system, low concentration pumping system, high concentration
High-concentration alkali liquor is supplied left jet pipe 4 by pumping system, and low-concentration alkali liquor is supplied right jet pipe 5 by low concentration pumping system.
High concentration pumping system uses high pressure pump motor, and high pressure pump motor is by Frequency Converter Control.
1 lower section of drive nozzle is equipped with stainless steel collector tube, and collector tube is connected to lautertuns.
Technique is stood, after liquid alkaline spurts into hide papillaris pars 2 by flesh noodles, stands 2.2 hours.
Embodiment two,
As shown in Figure 1, injecting formula method for leather-making, including following technique, alkali is sprayed in flattening, stands, machinery depilation, and spray alkali is adopted
Lye water column is sprayed with drive nozzle 1, liquid alkaline spurts into hide papillaris pars 2 by flesh noodles, and reverse become is presented in jet stream and hide density
Change, X, Y, Z three-dimensional of sulphion and neighbouring keratin fast hydrolyzing, hair root 10 are hydrolyzed from inside.
It should be noted that traditional technique is, former skin → washing → fleshing → immersion → depilation → liming → washing →
Multiple ash → cut open layer.
The technique of the technical program is that former skin → washing → fleshing → flattening → spray alkali → standing → machinery depilation → cuts open layer
→ ash → washing again.
For drive nozzle 1 by forming perpendicular to row's nozzle unit that transmission network 3 designs, the connection of 1 rear end of drive nozzle is stainless
Steel high-pressure pump, the sulphur-containing solution that high-pressure pump comes project a drainage column by the drive nozzle 1 of micropore shape after filtering, and transmission network 3 is sent
Skin, flesh noodles pass through water column towards drive nozzle 1.
Nozzle unit spacing 12mm, nozzle unit divide left-and-right spiral to arrange, and 40 ° of helix angle, drive nozzle includes left spray
Pipe 4 and right jet pipe 5, a length of 3.6m of left jet pipe 4,1.2 meters of left 4 middle section of jet pipe dress nozzle, two 2.4 meters of outer segments are without nozzle；Right jet pipe 5
A length of 3.6m, 5 liang of right jet pipe, 2.4 meters of outer segment dress nozzle, 1.2 meters of middle section is without nozzle.
Left jet pipe 4 is connected to high concentration high-pressure pump, and right jet pipe 5 is connected to low concentration high-pressure pump.
Hopper includes high concentration alkali liquid bath, low concentration alkali liquid bath, high concentration pumping system, low concentration pumping system, high concentration
High-concentration alkali liquor is supplied left jet pipe 4 by pumping system, and low-concentration alkali liquor is supplied right jet pipe 5 by low concentration pumping system.
High concentration pumping system uses high pressure pump motor, and high pressure pump motor is by Frequency Converter Control.
The lower section of drive nozzle 1 is equipped with stainless steel collector tube, and collector tube is connected to lautertuns.
It is equipped with flattening process before spraying alkali technique, flattening process uses open and flat roller, main carrying roller 6, for controlling open and flat roller lifting
Lifting cylinder 7, open and flat roller is set to above hide, and main carrying roller 6 is set to below hide transmission network, and open and flat roller includes left open and flat roller 8
With right open and flat roller 9,8 surface of Zuo Pingzhan roller is equipped with stainless steel spiral blade, and right open and flat 9 surface of roller is equipped with stainless steel spiral blade,
Behind excessively main 6 highest point of carrying roller in hide front, the fold of hide front end is evened up in 8 dextrorotation of Zuo Pingzhan roller, sturdy with transmission network 3；Skin
Zhang Qianduan has just enter into the inlet zone of left jet pipe 4, and two open and flat rollers are under the control of lifting cylinder 7, using pin shaft as centre swinging, Zuo Pingzhan
Roller 8 moves up, and right open and flat roller 9 declines, and right open and flat roller 9 is left-handed, and remaining hide is flattened.
Technique is stood, after liquid alkaline spurts into hide papillaris pars 2 by flesh noodles, stands 2.2 hours.
Embodiment one is compared with embodiment two, is added flattening process before spraying alkali technique in the technique of embodiment two, is needed
Bright, dehairing process hide is transported to next link by going out roller 12 by entering transmission network 3 into roller 11.
| Depilation vulcanization sodium utilization | Depilation blowdown accounts for sum-rate | |
| Embodiment one | 99.8% | 0.2% |
| Embodiment two | 92% | 3% |
Injection formula method for leather-making provided by the invention is described in detail above.The explanation of specific embodiment is only used
In facilitating the understanding of the method and its core concept of the invention.It should be pointed out that for those skilled in the art,
Without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention, these improvement and modification
It falls into the protection scope of the claims in the present invention.
Claims (7)
1. injecting formula method for leather-making, it is characterised in that: including following technique, spray alkali, stand, machinery depilation, the spray alkali uses
Drive nozzle sprays lye water column, and liquid alkaline spurts into hide papillaris pars by flesh noodles, and Back Up, sulphur is presented in jet stream and hide density
X, Y, Z three-dimensional of ion and neighbouring keratin fast hydrolyzing, hair root are hydrolyzed from inside；
For the drive nozzle by forming perpendicular to row's nozzle unit that transmission network designs, the drive nozzle rear end connection is stainless
Steel high-pressure pump, the sulphur-containing solution that high-pressure pump comes project a drainage column by the drive nozzle of micropore shape after filtering, and transmission network is sent
Skin, flesh noodles pass through water column towards drive nozzle；
The nozzle unit spacing 12-18mm divides left-and-right spiral to arrange in the nozzle unit, and 10 ° to 50 ° of helix angle, institute
Stating drive nozzle includes left jet pipe and right jet pipe, the left a length of 3.6m of jet pipe, 1.2 meters of left jet pipe middle section dress nozzle, and two
2.4 meters of outer segment without nozzle；The a length of 3.6m of right jet pipe, described 2.4 meters of dress nozzles of right two outer segment of jet pipe, 1.2 meters of middle section is without spray
Mouth.
2. injection formula method for leather-making according to claim 1, it is characterised in that: the left jet pipe is connected to high concentration high pressure
Pump, the right jet pipe are connected to low concentration high-pressure pump.
3. injection formula method for leather-making according to claim 2, it is characterised in that: it further include hopper, the hopper packet
High concentration alkali liquid bath is included, low concentration alkali liquid bath, high concentration pumping system, low concentration pumping system, the high concentration pumping system is highly concentrated
It spends lye tank (vat) and supplies left jet pipe, low concentration alkali liquid bath is supplied right jet pipe by the low concentration pumping system.
4. injection formula method for leather-making according to claim 3, it is characterised in that: the high concentration pumping system uses high-pressure pump
Motor, the high pressure pump motor is by Frequency Converter Control.
5. injection formula method for leather-making according to claim 4, it is characterised in that: the lower section of the drive nozzle is equipped with stainless
Steel collector tube, the collector tube are connected to lautertuns.
6. injection formula method for leather-making described according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that: before the spray alkali technique
Equipped with flattening process, the flattening process uses open and flat roller, and main carrying roller is described for controlling the lifting cylinder of open and flat roller lifting
Open and flat roller is set to above hide, and the main carrying roller is set to below hide transmission network, and the open and flat roller includes that left open and flat roller and the right side are flat
Roller is opened up, the open and flat roller surface in a left side is equipped with stainless steel spiral blade, and the open and flat roller surface in the right side is equipped with stainless steel spiral blade, institute
After stating the excessively main carrying roller highest point in hide front, the fold of hide front end is evened up in Zuo Pingzhan roller dextrorotation, sturdy with transmission network；Institute
The inlet zone that hide front end has just enter into left jet pipe is stated, two open and flat rollers are under lifting cylinder control, using pin shaft as centre swinging, Zuo Ping
Exhibition roller moves up, and right open and flat roller decline, right open and flat roller is left-handed, and remaining hide is flattened.
7. injection formula method for leather-making according to claim 6, it is characterised in that: the standing technique, liquid alkaline are sprayed by flesh noodles
After injecting leather papillaris pars, 1.8-2.3 hours are stood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610668097.2A CN106636487B (en) | 2016-08-15 | 2016-08-15 | Injection formula method for leather-making |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610668097.2A CN106636487B (en) | 2016-08-15 | 2016-08-15 | Injection formula method for leather-making |
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| Publication Number | Publication Date |
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| CN106636487A CN106636487A (en) | 2017-05-10 |
| CN106636487B true CN106636487B (en) | 2019-03-15 |
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ID=58852821
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|---|---|---|---|---|
| DE3617448A1 (en) * | 1986-05-23 | 1987-11-26 | Roehm Gmbh | Continuous unhairing of animal hides |
| CN2565841Y (en) * | 2002-07-24 | 2003-08-13 | 大连蓝德机械有限公司 | Driving device of double-knife extrusion horizontal leveling machine |
| CN101265505A (en) * | 2008-05-08 | 2008-09-17 | 四川大学 | Ashless and alkali sulfide free depilation liming treatment method for preparing leather from raw sheep skin |
| CN202369598U (en) * | 2011-12-19 | 2012-08-08 | 河北东明皮革有限公司 | Alkali spraying machine for hair removal of raw skin |
| CN103290148A (en) * | 2013-06-13 | 2013-09-11 | 浙江金鑫皮革有限公司 | Process for making goat denim line simulated upper leather |
| AU2014202616A1 (en) * | 2013-05-15 | 2014-12-04 | New Zealand Leather And Shoe Research Association | Method of depilation |
| CN204401015U (en) * | 2014-12-31 | 2015-06-17 | 辛集市海洋皮革有限公司 | A kind of leather drenches alkali device |
-
2016
- 2016-08-15 CN CN201610668097.2A patent/CN106636487B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3617448A1 (en) * | 1986-05-23 | 1987-11-26 | Roehm Gmbh | Continuous unhairing of animal hides |
| CN2565841Y (en) * | 2002-07-24 | 2003-08-13 | 大连蓝德机械有限公司 | Driving device of double-knife extrusion horizontal leveling machine |
| CN101265505A (en) * | 2008-05-08 | 2008-09-17 | 四川大学 | Ashless and alkali sulfide free depilation liming treatment method for preparing leather from raw sheep skin |
| CN202369598U (en) * | 2011-12-19 | 2012-08-08 | 河北东明皮革有限公司 | Alkali spraying machine for hair removal of raw skin |
| AU2014202616A1 (en) * | 2013-05-15 | 2014-12-04 | New Zealand Leather And Shoe Research Association | Method of depilation |
| CN103290148A (en) * | 2013-06-13 | 2013-09-11 | 浙江金鑫皮革有限公司 | Process for making goat denim line simulated upper leather |
| CN204401015U (en) * | 2014-12-31 | 2015-06-17 | 辛集市海洋皮革有限公司 | A kind of leather drenches alkali device |
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| Title |
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| 制革脱毛及其清洁化;单志华等;《西部皮革》;20081210;第30卷(第16期);第21-25页 |
| 清洁化脱毛技术;韩茂清等;《西部皮革》;20060618(第6期);第19-23页 |
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