CN104774980B - A kind of goat upper leather for shoes processing technology - Google Patents

Abstract

The invention discloses a kind of goat upper leather for shoes processing technology, concrete technology flow process is followed successively by：Immersion, fleshing, bag ash, depilation, liming, deliming, softening, pickling, tanning, indigo plant skin batching, water squeezing, shaving, dyeing of mixing again, secondary water squeezing, vacuum, extension dry in the air, it is soft to shake, stretching, extension, toggling, deburring, covering with paint.Present invention process selects appropriately, because retanning dyeing process plays critically important effect in manufacture goat upper leather, to significantly improve leather quality by improving this operation, make the growth striae of raw material skin, ridge stricture of vagina fully open, grain is put down carefully, increased yield of leather；The position decreasing skin body is poor, improves the richness of whole skin, skin body can be made to moisten, reduce production cost, makes that leather is more natural, environmental protection.

Description

A kind of goat upper leather for shoes processing technology

Technical field：

The present invention relates to a kind of goat upper leather for shoes processing technology.

Background technology：

China is the maximum footwear manufacturing country in the whole world, exported country and country of consumption, and quantity occupies whole world first place, but big with meaning The shoemaking power such as sharp, French compares, and also there is very big gap on footwear material research and development, product design, properties of product and quality scale. The quality scale of footwear is the comprehensive of product design, durable performance, snugness of fit, security performance and ecological, environmental protective performance etc. Fit existing.

Upper leather is the raw material making shoes, and on the surface making shoes, the raw material of upper leather is a lot, has corium footwear Upper leather, PU upper leather, PVC upper leather etc..Corium upper leather typically has Corii Bovis seu Bubali, Corii Caprae seu Oviss, Corii Sus domestica, also Corium Equi, Periostracum Serpentiss etc..Adopt Increasingly to be subject to the leather shoes that the high-grade goat upper leather having kishke feel, quality is soft, comfortable and easy to wear, sanitation performance is good is processed The favor of consumers in general.

Content of the invention：

The technical problem to be solved be to provide a kind of goat upper leather for shoes processing technology so that process after mountain Sheep upper leather is more suitable for the making of high-grade vamp.

The technical solution of the present invention is to provide a kind of goat upper leather for shoes processing technology, and concrete technology flow process is followed successively by： Immersion, fleshing, bag ash, depilation, liming, deliming, softening, pickling, tanning, indigo plant skin batching, water squeezing, shaving, dyeing of mixing again, secondary Water squeezing, vacuum, extension dry in the air, it is soft to shake, stretching, extension, toggling, deburring, covering with paint；Wherein,

Described retanning dyeing refers to after blue skin weighs through shaving, make the foundation of weighing of chemical materialss according to weight, step is as follows：

(1) pickling：Mix up 45 DEG C 1：150 liquor ratio water add cation degreasing agent, oxalic acid to carry out water drain after turning 60 minutes Wash, the pH to blue skin is 3.4-3.6；

(2) retanning：Renew body lotion, mix up the water of 38 DEG C of 100 times of tare weights, add the acidproof oil that the surface of tare weight 1% is moistened Turn 15 minutes, be subsequently added into turning 30 minutes containing chrome syntans of tare weight 3%, the chromium powder being subsequently added into tare weight 5% turns 60 minutes Afterwards plus sodium formate turns 20 minutes, then add sodium bicarbonate to turn 60 minutes slow lifting pH value by several times, make pH value be 3.9-4.0, so The both sexes acrylic acid of tare weight 1% is added to turn 30 minutes afterwards；Then mend 40 DEG C of 1 times of tare weights water turn 10 minutes again after to stop drum 10 little When, after finally turning 10 minutes, draining is by blue severe edema due to hypofunction of the spleen wash clean again；

(3) neutralize：Application neutralization tannin slowly lifts the pH value of blue skin, then improves the pH to 5.0- of blue skin with sodium bicarbonate 5.1；

(4) fill：In the blue skin become reconciled after abundant washing, renew body lotion, mix up the water of 35 DEG C of 100 times of tare weights, first Add 0.5% lanoline to turn 10 minutes, be subsequently added into small molecule acrylate resin tanning agent and rotate 20 minutes, be subsequently adding macromole Acrylic acid turns 30 minutes, is subsequently added into dispersion tanning agent, tannic extract, and resin extender turns 60 minutes, is subsequently adding dyestuff and rotates 30 minutes, Then it is warming up to the pH to 4.0 of 45 DEG C plus the extremely blue skin of formic acid；

(5) stuffing：Vegetable protein is added to turn in body lotion 20 minutes, then fatting agent rotation 40 minutes；

(6) surface oil wax：Surface cationic wax is added to turn before going out drum 30 minutes, last water drain washes out drum.

As improving further, it is 10-15% that described vacuum refers to vacuum machine skin drying to water content.

As improving further, soft the fingers soft machine of shake of described shake uniformly hits skin up and down, makes skin feel uniform, soft Soft.

As improving further, the design parameter of described liming is：Adjust liquor ratio：1：250；Interior temperature：18-22℃；Time： 18h；Material：Lime paste consumption is the 10% of tare weight, and enzyme-added auxiliary liming agent consumption is the 0.5%-0.8% of tare weight；Operation is as follows： Throw skin, mix up liquor ratio and temperature, add lime paste and the auxiliary liming agent being completely dissolved with 35-45 DEG C of hot water stirs in advance, rotate 40 clocks, stop 1 hour, often stop 1 hour later, turn 5 minutes, and total rotation time is 3 hours；Before terminating liming, more continuously rotate 20- 30 minutes.

Present invention process selects appropriately, because retanning dyeing process plays critically important effect in manufacture goat upper leather, Leather quality can be significantly improved by improving this operation, so that the growth striae of raw material skin, ridge stricture of vagina is fully opened, grain is put down carefully, Increased yield of leather；The position decreasing skin body is poor, improves the richness of whole skin, skin body can be made to moisten, reduce production Cost, makes that leather is more natural, environmental protection.

Specific embodiment：

With reference to specific embodiment, the invention will be further described：

Embodiment

A kind of goat upper leather for shoes processing technology, concrete operations flow process is as follows：

Fur：With domestic Han kou goat skui as preferred material, this dermatotome is abundant, plump, carries flesh pink, grain in Huang Flat thin.

Immersion:Purpose is to make the moisture of raw material skin return back to Cortex Dictamni state, removes silt on hide, blood stains, salt and anti-corrosion Agent etc. is inorganic and organic dirt, removes the infiltration of material that Intradermal part soluble non-fibrillar albumen is rear operation and effect is laid Basis.With the water between 18-22 DEG C, 300 times of tare weights of liquor ratio, 3-4 rev/min of rotating speed；Time 18-22 hour；Add appropriate Preservative and Soaking, throw skin and adjust liquor ratio and temperature to setting, rotate 1 hour, stop 1 hour, often stop 1 hour to rotate later 5-10 minute, total rotation time, at 3 hours, prevents the too strong hide of mechanism from elongating, and stops drum 10h, goes out continuous rotation 15 before drum Minute

Fleshing：Eliminate subcutaneous tissue with fleshing machine it is impossible to by dermatotome skiving, cut wound etc..

Bag ash：It is simply that being dissolved in water with required sodium sulfide, plus Calx is tuned into pasty state to so-called bag ash, by hand or apply depilation Paste machine in skin flesh noodles to reach clear up hair root sheath, Rhizoma Imperatae and ball top and lose hair or feathers or reduce skin position difference a kind of operation.Its Specific practice is that the solution that technical pure sodium sulfide is made into 15-50g/L adds Calx and is tuned into 15-30Be ' paste, and uniform application exists Recover to the flesh noodles of Cortex Dictamni state skin, flesh to flesh pile up to 40cm about height, (18-22 DEG C) is stacked to Rhizoma Imperatae at normal temperatures Loosen.

Depilation：After bag ash by hand in foreskin version or push away mao machine and carry out pushing away hair one by one come the mesh to reach depilation and reclaim hair 's.

Liming：Liming is that depilation pelt processes to reach supplementary dispersion fiber in certain density lime liquor further, Supplement the operation of the effects such as its expansion.Its object is to supplement the deficiency expanding during depilation, so that hide fiber is obtained further swollen Swollen and dispersion, removes the interfibrillar substance of Intradermal and further to the effect strengthening elastic fiber, plentiful, soft and have for obtaining The leather of elasticity is laid a solid foundation.Specific practice is as follows：Adjust liquor ratio：250 times；Interior temperature：18-22；Time：18h；Material：Stone Emplaster 10%, enzyme-added Soaking 0.5%-0.8%；Operation：Throw skin and mix up liquor ratio and temperature, emplaster needed for addition and in advance use The auxiliary liming agent being completely dissolved under 40 DEG C about sufficient of hot water stirs, rotates 40 minutes, stops 1 hour, often stop 1 little later When, turn 5 minutes to the stipulated time.Total rotation time is 3 hours, before terminating liming, continuous rotation 20-30 minute, and check, reach Requirement is followed by lower operation.

Deliming：Deliming is named dealkalize it is simply that remove a kind of behaviour of Intradermal Calx (alkali) under certain conditions with acid again Make.Its purpose：Remove free alkali and the combined alkali of Intradermal, substantially eliminate the expansion of skin, remove further and remain in hide glue fibril The impact finished leather performance such as the catabolite of preserved egg Pseudobulbus Bletillae (Rhizoma Bletillae) lipid between dimension bundle, Rhizoma Imperatae, part noncollagen protein and scurf Material, dredges interfibrous space, the infiltration beneficial to rear operation chemical materialss and effect；The pH value reducing alkali (grey) skin is (from 12 It is down to 8 about), the offer that is smoothed out for the rear operation such as softening, pickling ensures.To wash supplemented by deliming, deliming agent takes off deliming Based on ash.Concrete operations are as follows：Liquor ratio：200；Interior temperature：25℃；Time：40 minutes；Chemical materialss：Ammonium sulfate 1.5% hydrochloric acid (36%) 0.5% degreasing agent 0.5%；Step：Mix up liquor ratio, interior temperature, ammonium sulfate needed for addition and degreasing agent, turn 10 minutes, so Interval adds the hydrochloric acid after dilution cooling for 5 minutes at twice afterwards.Finally go out drum to check cervical incision phenolphthalein indicator to leave 1/4 red The heart is as terminal.

Soften：This step refers to process deliming pelt with biological enzyme formulation under certain condition, makes more soft after pelt finished leather Soft, grain is more flat carefully organoleptic and a kind of better operation of wholesomeness such as breathability, and this step is also called enzyme bating operation, Abbreviation enzyme bating.Its objective is to remove pigment outside Intradermal, Rhizoma Imperatae, hair root sheath, epidermis, the degradation product such as oils and fatss and scurf, non-fibre The remnant such as fibrillarin and part collagen degradation thing, the infiltration beneficial to materials such as tanning agents and combine it is ensured that the flexibility of finished leather and The performances such as fullness；Weaken the effects in skin tissue structure for the muscular tissue such as elastic fiber, bundle hair flesh, to take care of yourself prolonging of finished leather Stretching property, the flat thin property of the inside and flexibility；Disperse materials with hide glue fibril further, make finished leather have good breathability and permeable The sanitation performances such as vapour；The expansion of pelt is completely eliminated, is pickling ready for operation.Concrete operations are as follows：Liquor ratio：100；Interior Temperature：36-37℃；Time：30 minutes -40 minutes；Chemical materialss：Ammonium sulfate 0.5%, pancreatin (25 times) 0.3%, 1398 protease (50,000 units/g) 0.1%, penetrating agent JFC 0.3%；Mix up liquor ratio interior temperature, material needed for addition, turn to and conform to quality requirements Rotation time；Soften to pH value to 8.0 about so that grain puts down thin, skin body softness no hard-core, after finger presses grain, should Staying and clearly refer to trace print, skin body is solid preferably, if not reaching requirement can extend the time, being finally reached requirement preferably.

Pickling：It is by acid and neutral salt wiring solution-forming by a certain percentage, the pickling operation of the pelt after process is softened, letter Claim pickling.Its objective is：Reduce pelt pH value, be allowed to close with Chrome Tanning Liquor pH value, prevent surface from crossing tan it is ensured that tanning suitable Profit is carried out；Disperse collagen fiber further, increase the reactivity base of collagen, be conducive to increasing the knot of tanning agent molecule and collagen Close；Remove the non-fibrous protein of Intradermal further and so that collagenous portion is dehydrated, increase the space between collagen fiber, be conducive to tanning agent The infiltration of molecule and combination；The hydroxyl of closing collagen, strengthens the electropositivity of collagen, slows down the combination of tanning agent molecule and collagen, just In tanning agent molecule to intradermal penetration, prevent surface from crossing tan；It is easy to preservation and the shaving of pelt.Operation is as follows：Liquor ratio 100；Interior temperature： 18℃-22℃；Time：180 minutes；Chemical materialss：Formic acid (85%) 1.0%, sulphuric acid (96%) 0.5% Sal 7%；Mix up liquid Formic acid and sulphuric acid are diluted and are cooled to room temperature with 20 times of normal-temperature water of sour weight by ratio interior temperature respectively.First turn 5 minutes with Sal, Plus formic acid turns 30 minutes, then it is slowly added to sulphuric acid in three times, every minor tick 10 minutes, then turn 30 minutes and stop 30 minutes, after Often stop 30 minutes to turn 5 minutes to the stipulated time.Final inspection bromocresol green cervical incision is entirely yellow, pH value of solution to 2.8 about, proceeds to Tanning processes.

Tanning：This operation we employ few bath chrome tanning, it belongs to one kind of traditional chrome tanning.It is will be former traditional Tanning in pickling liquid, changes over and removes part pickling liquid (as 1/2) in the pickling liquid of traditional chrome tanning, then carry out chrome tanning A kind of tannage, be characterized in：Improve the concentration of Chrome Tanning Liquor, accelerate tanning speed, shorten the production time；The tanning later stage Still using carrying alkali, expand liquor ratio and intensification；Improve collagen to chrome uptake, improve the utilization rate of chromium, decrease chrome wastewater Pollution to environment.Concrete operations are as follows：Remove pickling liquid 1/2, add cationic surface oil to turn 30 minutes, add chromium powder (low Basicity B=33%) 6% turn (survey Ts within 120 minutes>85), plus 60 DEG C of 100 times of water turn 60 minutes (interior temperature=38 DEG C), plus 1% Sodium Acetate Trihydrate turns 30 minutes, and 1% sodium bicarbonate is good with 20 times of water dissolutioies, is uniformly divided into 5 parts, every 20 minutes slow from axis hole plus Enter 1 part, pH value should be checked after adding the 3rd part, if pH value=3.9, remaining saleratus liquid does not add；If less than 3.9, then optionally, add remaining saleratus liquid, until pH reaches 3.9, then turn again 60 minutes.Add the water of 50 DEG C of water temperature To 38 DEG C of interior temperature, owse pH stable, in 3.9-4.0, turns 60 minutes, stops drum overnight.Next day rotates 30 minutes, checks pH>3.8, 38 DEG C of (interior temperature) Ts of temperature>95 degree, leather is consistent in aeruginouss color even, and leather body is soft.Draining is poured out and is taken flat ageing 1 week, so After proceed to next procedure.

Blue skin batching：Will be similar according to the first transaction of a day's business size of blue skin, thickness, the degree of disability of grain, thickness of grain etc. Hide composition produces to criticize to organize an operation sequence of production.Using thickness moderate (shaving thickness 0.8MM), grain is put down carefully, Open a business and produced in the blue skin of (1 grade -3 grades) according to customer requirement (3SF-5SF) grade.Follow-up technique can be according to batching The state of blue skin to be adjusted afterwards, reaches relatively uniform finished product by adjusting process to reach different indigo plant skin.Institute This operation with batching is that high-quality resultant Leather processing provides most basic guarantee.

Water squeezing：With this process by wringing machine that the good skin of batching is smooth, the moisture contained by blue skin is made to reach shaving Requirement (half-dried, moisture 40% about) state.

Shaving：With the skin after water squeezing fall through overdrying rotary drum add careless bran go out after rotating 10 minutes drum take flat, through shaving machine The oil film of flesh noodles is uniformly reamed, reaches the degree of uniformity according to the thickness that the thickness requirements of client make hide, to rear Continuous retanning dyeing provides basis, is easy to retanning agent, fatting agent is sufficiently combined with hide fiber, so that the position difference of skin is reduced, Color ratio is more uniform, improves utilization rate and finished product class.Skin after water squeezing shaving has consistent water content and uniform Thickness, being easy to follow-up retanning agent and the meter recast of dyestuff is an important parameter foundation.

Retanning is dyeed：This operation plays critically important effect in manufacturing goat upper leather.Through the tanning at initial stage, blue skin Grain equals thin, body bone softness.Retanning dyeing further strengthens the flat thin of grain in these advantages ensure that blue skin Degree, makes to which increase glossy sense by the effect of retanning packing material and fatting agent, flexibility, the sense organ such as richness and physico Learn the lifting in index；, in the middle of retanning, for Hua Beilu, import indigo plant skin etc., grain is relatively thick, hard, carries out blue soft and soggy for blue wet skin Change, be surface-treated further, make grain uniformity, reach overall soft, plentiful, expand the extensive of raw material simultaneously Property.Retanning carry alkali latter stage add 1～2% both sexes acrylic acid, can effectively fill minimizing position poor, raising richness.Master adds In fat, appropriate addition lanoline, Ungula Bovis seu Bubali fat, increase the moisture feeling on surface, resistance to drag sense.

Concrete operations are as follows：After blue skin is weighed through shaving, walked as follows according to the foundation of weighing that weight makees chemical materialss Suddenly,

(1) pickling：The water mixing up 45 DEG C of 150 times of tare weights adds appropriate cation degreasing agent, oxalic acid to turn draining after 60 minutes It is therefore intended that the pH value (pH=3.5 about) of the blue skin of adjustment, application penetrating agent makes skin be quickly returning to fresh wet blue state for washing, Remove surface again and display the dirt causing long very much because of blue skin, for follow-up composite tan fatting agent be fully combined with hide fiber with very Good infiltration is laid a good foundation.

(2) retanning：Renew the water that body lotion mixes up 38 DEG C of 100 times of tare weights, add the acidproof oil that the surface of tare weight 1% is moistened to turn 15 minutes, add turning 30 minutes containing chrome syntans of tare weight 3%, add tare weight 5% chromium powder to turn 60 minutes and then plus sodium formate Turn 20 minutes, then add sodium bicarbonate to turn 60 minutes slow lifting pH value by several times, make pH value be 3.9-4.0, then check skin, this If when side abdominal part pine partially just add 1% both sexes acrylic acid to turn 30 minutes to improve that position is poor, lift the overall uniformity of skin.Finally mend The water of 40 DEG C of 1 times of tare weights stops drum 10 hours after turning 10 minutes, then turns 10 minutes water drain wash cleans.

(3) neutralize：Slowly lift pH value through application neutralization tannin, open passage between fiber further, then use little Su Beat and improve pH to 5.0-5.1, carry out basis for anion retanning packing material below, be conducive to filler, fatting agent, dyestuff Fully be combined with hide fiber, permeate.

(4) fill：In the blue skin become reconciled after abundant washing, renew body lotion, mix up the water of 35 DEG C of 100 times of tare weights, first Add 0.5% lanoline to rotate 10 minutes, be subsequently added into small molecule acrylate resin tanning agent and rotate 20 minutes, be subsequently adding big point Sub- acrylic acid turns 30 minutes, is subsequently added into dispersion tanning agent, tannic extract, and resin extender etc. turns 60 minutes, is subsequently added into dyestuff and rotates 30 Minute, check that the skin heart will contaminate, be then warming up to 45 DEG C plus formic acid appropriate turn 30 minutes be 4.0 to pH, fully fixing more than Material.It is critical only that and applying comprehensive retanning packing material of this step, makes skin improve richness, the degree of packing further, be for Make and an of paramount importance step is provided on finished product integumentary sense organ and physical application.

(5) stuffing：Goat skin employs the stuffing formula of uniqueness, adds vegetable protein to turn in body lotion 20 minutes, with Prevent the excessive effect of fatting agent from causing loose side, fatting agent adds 40 minutes feels to be checked of rotation, glossy degree, and oil sense is not enough Or abdomen pine partially in side will adopt necessary measure, appropriate increases oils and fatss or adds appropriate Selective filling agent to cover the shortage Part.

(6) surface oil wax：This step is the final step before drum, adds appropriate surface cation oil wax before going out drum Turn 30 minutes, water drain washes out drum, take flat rear next day arrangement.Add surface cation oil wax in order to improve the electric charge in epidermis face, Fixing above anionic materials and dyestuff, increase surface brightness, so that the grain on surface is more moistened and bright, follow-up true Empty dry run makes water content be less than 10%, puts down beneficial to grain thin, provides good basis for follow-up covering with paint.

Secondary water squeezing：The skin that retanning is dyeed goes out first arranging process after drum, and the skin having dyeed is passed through wringing machine The rotation of transmission rod axle and felt axle extrude skin extended flat, moisture is uniformly extruded, and is uniformly drying and the grain of vacuum Face is more flat carefully to play place mat effect.

Vacuum：The next process that the complete skin of water squeezing proceeds to, goat skin requirement vacuum machine is dried to water content skin and exists 15% about state, parameter be 75 DEG C 3 minutes 20 seconds；Skin is evaporated it is ensured that skin grain is put down carefully as far as possible, surface wax is passed through So that light is displayed after high-temperature vacuum, obtain high glaze, natural, penetrating effect.

Extension dries in the air：Skin after vacuum also needs further to be dried, and using (40 DEG C) continuation of baking oven, skin is dried to 5%-10% Water content.Too fast drying (temperature wants 35-40 DEG C of constant temperature) is avoided to cause moisture short time wink-dry to bring skin body partially dry, Partially hard.

Shake is soft：It is generally used for the stake operation in process of production such as natural leather, dermatine, synthetic leather, disappear Except phenomenons such as the hard, warpages of base leather board, make the loose softness of crust leather fiber, high resilience, end product quality can be effectively improved, increase Yield of leather.

Stretch：Cry dry stretching, extension, stretching the same purpose with wet practice is that the development of skin body is put down, and is that toggling is prepared, can have again Effect ground improves end product quality, increases yield of leather.

Toggling：Clamped the side abdominal part of leather before this with toggling, and suitably pulled at and again clip is fixed on toggling, multiple Clip is carried out simultaneously, and Corii Caprae seu Oviss typically carry out bark pocket by four people, can effectively improve end product quality, reduce the extension of scytoblastema Rate, increases yield of leather.

Deburring：Preparatory process before covering with paint, revises the unnecessary empty side of edge, makes scytoblastema more smooth, be easy to buffing, unlikely Now out-of-flatness in leather causes scytoblastema of grinding away.

Cover with paint, lacquer, colour wash, etc.：In grain layer synthetic wax and artificial oil, it is initially formed the state that oily wax molecule wraps up grain fiber, had both made fibre Coefficient of friction between dimension reduces, and skin body fiber-reactive increases, and in polishing process after again protecting surface to prevent, skin corium is subject to Polishing damage, top layer made by bloom synthetic wax, and after polishing is plated, finished product is smooth, soft and moist, and taste is full；The polishing effect of unrestricted number of times Really, glossy vamp.

Classification：Scytoblastema has been enter into finished product skin state through having covered with paint, lacquer, colour wash, etc..Now skin will reach being required of client, then adopts Classification is divided into 1 grade finished product skin by disability grade, utilization rate, 2 grades, 3 grades.

Metering：Finished product skin enters footwear material market, the last one procedure of Shoes Factory.It is exactly the back of the body by leather measurer finished product skin Accurate size is stamped in face, then enters back into footwear material market.

Goat after the completion of above-mentioned steps imitates cowboy's stricture of vagina upper leather the key technical indexes：

Check conclusion：Above-mentioned test rating all meets QB/T 1873-2010 standard specification.

Below only preferred embodiments of the present invention are described, but are not to be construed as limiting the scope of the invention.

Claims (4)

1. a kind of goat upper leather for shoes processing technology it is characterised in that：Concrete technology flow process is followed successively by：Immersion, fleshing, bag are grey, de- Hair, liming, deliming, softening, pickling, tanning, blue skin batching, water squeezing, shaving, dyeing of mixing again, secondary water squeezing, vacuum, extension dry in the air, shake Soft, stretching, extension, toggling, deburring, covering with paint；Wherein, described retanning dyeing refers to after blue skin weighs through shaving, make chemical materialss according to weight Foundation of weighing, step is as follows：

(1) pickling：Mix up 45 DEG C 1：150 liquor ratio water add cation degreasing agent, oxalic acid to carry out water drain after turning 60 minutes and wash, extremely The pH of blue skin is 3.4-3.6；

(2) retanning：Renew body lotion, mix up the water of 38 DEG C of 100 times of tare weights, add the acidproof oil that the surface of tare weight 1% is moistened to turn 15 Minute, be subsequently added into turning 30 minutes containing chrome syntans of tare weight 3%, be subsequently added into tare weight 5% chromium powder turn 60 minutes after plus Sodium formate turns 20 minutes, then adds sodium bicarbonate to turn 60 minutes slow lifting pH value by several times, makes pH value be 3.9-4.0, Ran Houjia The both sexes acrylic acid entering tare weight 1% turns 30 minutes；Then the water of 40 DEG C of 1 times of tare weights of benefit stops drum 10 hours, after turning 10 minutes again After turning afterwards 10 minutes, draining is by blue severe edema due to hypofunction of the spleen wash clean again；

(3) neutralize：Application neutralization tannin slowly lifts the pH value of blue skin, then improves the pH to 5.0-5.1 of blue skin with sodium bicarbonate；

(4) fill：In the blue skin become reconciled after abundant washing, renew body lotion, mix up the water of 35 DEG C of 100 times of tare weights, be initially charged 0.5% lanoline turns 10 minutes, is subsequently added into small molecule acrylate resin tanning agent and rotates 20 minutes, is subsequently adding macromole propylene Acid turns 30 minutes, is subsequently added into dispersion tanning agent, tannic extract, and resin extender turns 60 minutes, is subsequently adding dyestuff rotation 30 minutes, then It is warming up to the pH to 4.0 of 45 DEG C plus the extremely blue skin of formic acid；

(5) stuffing：Vegetable protein is added to turn in body lotion 20 minutes, then fatting agent rotation 40 minutes；

(6) surface oil wax：Surface cationic wax is added to turn before going out drum 30 minutes, last water drain washes out drum.

2. goat upper leather for shoes processing technology according to claim 1 it is characterised in that：Described vacuum refers to vacuum machine skin Being dried to water content is 10-15%.

3. goat upper leather for shoes processing technology according to claim 1 it is characterised in that：Described shake is soft to be referred to shaking soft machine skin Uniformly hit up and down, make skin feel uniform, soft.

4. goat upper leather for shoes processing technology according to claim 1 it is characterised in that：The design parameter of described liming is： Adjust liquor ratio：1：250；Interior temperature：18-22℃；Time：18 hours；Material：Lime paste consumption is the 10% of tare weight, and enzyme-added liming helps Agent consumption is the 0.5%-0.8% of tare weight；Operation is as follows：Throw skin, mix up liquor ratio and temperature, add lime paste and use 35- in advance The auxiliary liming agent that 45 DEG C of hot water stirs are completely dissolved, rotates 40 minutes, stops 1 hour, often stop 1 hour later, turns 5 minutes, total turn The dynamic time is 3 hours；Before terminating liming, more continuously rotate 20-30 minute.