CN109097509A - A kind of leather softening processing method - Google Patents

A kind of leather softening processing method Download PDF

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Publication number
CN109097509A
CN109097509A CN201811054425.5A CN201811054425A CN109097509A CN 109097509 A CN109097509 A CN 109097509A CN 201811054425 A CN201811054425 A CN 201811054425A CN 109097509 A CN109097509 A CN 109097509A
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China
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resistance
parts
rotary drum
capacitor
added
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CN201811054425.5A
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Chinese (zh)
Inventor
黄宇宁
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Zhuhai Hengqin New Area Oku Technology Co Ltd
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Zhuhai Hengqin New Area Oku Technology Co Ltd
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Priority to CN201811054425.5A priority Critical patent/CN109097509A/en
Publication of CN109097509A publication Critical patent/CN109097509A/en
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    • CCHEMISTRY; METALLURGY
    • C14SKINS; HIDES; PELTS; LEATHER
    • C14CCHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C5/00Degreasing leather
    • CCHEMISTRY; METALLURGY
    • C14SKINS; HIDES; PELTS; LEATHER
    • C14CCHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C1/00Chemical treatment prior to tanning
    • C14C1/08Deliming; Bating; Pickling; Degreasing
    • CCHEMISTRY; METALLURGY
    • C14SKINS; HIDES; PELTS; LEATHER
    • C14CCHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C11/00Surface finishing of leather
    • CCHEMISTRY; METALLURGY
    • C14SKINS; HIDES; PELTS; LEATHER
    • C14CCHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C9/00Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
    • C14C9/02Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes using fatty or oily materials, e.g. fat liquoring

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  • 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 provides a kind of leather softening processing method, softened by degreasing, the pre- stuffing of wash water, it neutralizes, washing, dyeing plus vinegar, filling, it mends cold water and softening step and softening processing is carried out to leather, and the coolant-temperature gage in water-washing step is tested using temperature sensor, temperature sensor is set in water, for acquiring water temperature, and the temperature signal of acquisition is converted into voltage signal, and voltage signal is transmitted to signal processing circuit, signal processing circuit amplifies the temperature signal received, filtering processing, the measuring accuracy to coolant-temperature gage can be improved, and then improve leather processing accuracy, simultaneously, softening material is added in leather, to make leather that there is good permeability, enable the grease inside leather not volatile, extend the service life of leather.

Description

A kind of leather softening processing method
Technical field
The present invention relates to leather high softening treatment process field more particularly to a kind of leather softening processing methods.
Background technique
Leather, refers to through depilation and the physics such as tanning, chemical process is obtained has been denaturalized not perishable Animal Skin, It is a kind of luggage clothes and process materials.Leather is to be made of natural protein fibre in three-dimensional space close weave, surface There is a kind of special grain layer, there is natural graining and gloss, comfortable feel.
Leather industry covers the main bodys industry such as process hides, luggage, shoemaking, fur clothing, leather goods, fur and its product, Yi Jipi Remove from office the mating industries such as chemical industry, leather hardware, leather machine, auxiliary material.Downstream associative degree is high, pulls by market, and product is evergreen, collection It earns foreign exchange, enrich people, the characteristics of being integrated of obtaining employment.
Chinese leather industry is adjusted optimization structure, and it is clear, special to have preliminarily formed a collection of division of labor based on specialization in the whole nation Color is prominent, produces characteristic region and specialized market to the leather for pulling local economy to play very important effect.Their formation, The basis of Chinese leather industry development is established.
In the market environment of competition, it is not easy that Chinese leather industry can obtain such achievement, also thus demonstrate,proves Be illustrated Chinese leather industry vitality it is vigorous with it is powerful.The market potential of leather and leather products be it is very big, global leather always needs The amount of asking is about 1.0 hundred million square metres, is equivalent to the yield of 300,000,000 ox-hides (standard skin), it is close that Chinese leather yield converts into standard skin 70000000, account for about the 23.33% of global leather yield.But the enterprise of Chinese leather luggage and its related industry also should It faces, we are not leather although China is leather big producer in the world there is also shortcoming at many aspects Power, still in weak position in terms of quality, value, needs to be tempered and improved in the overall situation in this market.
No matter luggage, leather shoes production or fur clothing, leather sofa manufacturing process used in main material be all leather ( It is natural leather), it is the referred to as natural leather (being corium) made of Animal Skin.Corium is by a series of in leather-making technology After physical chemistry and machining, it is transformed into a kind of durable substance of fixation, referred to as leather, referred to as removes from office.
Softening agents is a kind of auxiliary agent of the processing performance and service performance for improving rubber, can increase the modeling of sizing material Property, temperature when reducing compound viscosity and being kneaded improves dispersibility and Combination, improves tensile strength, the elongation of vulcanizate And wearability.Softening agents and the effect of plasticizer are substantially similar, and only plasticizer is all to be chemically synthesized obtained, main use In resin and plastics, and softening agents is greatly mostly from natural materials, and almost all is used for rubber.
Leather and fur products has used in people's life extensively at present, but the use with leather in daily life, Since environmental change, such as moisture, temperature can cause grease or oil film inside leather to be destroyed, grease volatilization, so that skin It is mutually bonded together between leather internal fiber, so that corium be made to be hardened, become fragile.
Summary of the invention
Therefore, to solve the above-mentioned problems, the present invention provides a kind of leather softening processing method, during the technical treatment Exceeded sewage and dirty gas will not be generated, it will not be to environmental effects.
Leather softening processing method according to the present invention, method includes the following steps:
Step 1: degreasing softening the water that parts by weight are 90 ~ 95 parts and temperature is 50 ~ 52 DEG C is added into rotary drum, then by leather It puts into rotary drum, degreasing agent is added into rotary drum and adjusts PH to 4.5 ~ 4.8 and stays overnight, it is rear to be added 0.4 ~ 0.5 part of sodium bicarbonate, and set It sets rotary drum and stops 30min automatically and turn 10min, rotate 120min;
Step 2: the pre- stuffing of wash water, the water after degreasing is softened exhaust and continue to be added into rotary drum 90 ~ 95 parts and temperature be 42 ~ 44 DEG C of water, after add 1 ~ 1.5 part of terephthalic acids double sodium salt, and stop after rotary drum rotation 30min, be further continued for 2 ~ 3 parts of addition Soften fatting agent, stops after 2 ~ 3 parts of phosphatide SQS, rotary drum rotation 30min, add 0.3 ~ 0.5 part of formic acid, and rotary drum rotates It stops operating after 10min, then titanium dioxide is added into rotary drum, rotary drum stops after starting turning 60min;
Step 3: neutralizing, neutralizer is added into rotary drum and adjusts pH to 5.4 ~ 5.6, rear rotary drum rotates 30min;
Step 4: washing, it is that 42 ~ 44 DEG C of water are washed three times that temperature is added into rotary drum, turns 10min every time, drains;
Step 5: dyeing plus ester add 40 ~ 50 parts of water into rotary drum, and fatting agent is added afterwards, and rotary drum rotates 60min;
Step 6: filler is added into rotary drum for filling, and rotary drum is added anti-strand agent after rotating 120 ~ 150min, rotates 10min, after Automatically stop 25min rotation 5min to stay overnight;
Step 7: mend cold water, into rotary drum plus cold water adjust rotary drum in temperature, and in three times be added 1 ~ 2 part of formic acid, and every time between Every 10min, rotary drum rotates 20min after formic acid is added, and leather is taken out in draining;
Step 8: softening, Tu adorns softening agents on by treated the leather of above-mentioned steps 7.
Preferably, in step 1 degreasing agent include 0.1 ~ 0.15 part alkaline defatting agent, 2 ~ 3 parts of alkaline assistants, 0.2 ~ 0.4 part of peregal, 3 ~ 5 parts of WB macerating enzymes and 0.4 ~ 0.5 part of sodium bicarbonate.
Preferably, in step 3 neutralizer include 2 ~ 2.5 parts of sodium formates, 1 ~ 1.5 part of tannigen, 1 ~ 1.5 part of ammonium bicarbonate, 1 ~ 1.5 parts of sodium bicarbonate, 2 ~ 3 parts of soft polyurethane ester fatting agents.
Preferably, fatting agent includes 3 ~ 4 parts of lecithin fatting agents, 2 ~ 3 parts of acid resistance fatting agents, 2 ~ 3 parts of phosphorus in step 5 Rouge fatting agent, 3 ~ 5 parts of acid and alkali-resistance fatting agents resistant to high temperatures.
Preferably, 0.1 ~ 0.5 part of mould inhibitor is added in step 5 plus after ester.
Preferably, filler includes 1 ~ 3 part of tannin extract, 0.5 ~ 1 part of dispersing agent, 1 ~ 3 part of acrylic acid, 1 ~ 3 portion of egg in step 6 White filler, 1 ~ 2 part of both sexes filler, 4 ~ 6 parts of syntanses.
Preferably, it is 3.3 ~ 3.5 that PH is controlled in step 7.
Preferably, in step 8, softening agents includes the raw material of following number: 12 mass parts lauryl sodium sulfate, 8 matter Amount part sulfonation grease, 1 mass parts emulsifier, 4 mass parts glycerin monostearates, 10 mass parts butanediols, 3 mass parts are mould proof Agent, 1 mass parts epoxy resin, 2 mass parts sodium lauryl sulfates, 12 mass parts amido silicon oils.
Preferably, in step 4, when addition temperature is 42 ~ 44 DEG C of water washings into rotary drum, temperature sensor and letter are used Number processing circuit tests water temperature, and temperature sensor is set in water, for acquiring coolant-temperature gage, the output of temperature sensor The voltage signal V0 of end output characterization water temperature, and voltage signal V0 is transmitted to signal processing circuit, V1 is by signal processing Voltage signal after processing of circuit, signal processing circuit include signal amplification unit and signal filter unit, temperature sensor The connection of the input terminal of output end and signal amplification unit, the output end of signal amplification unit and the input terminal of signal filter unit connect It connects, the output end of signal filter unit and the port ADC of central processing unit connect.
Preferably, signal amplification unit includes integrated transporting discharging A1-A2, resistance R1-R6 and capacitor C1-C4;Wherein, warm The output end of degree sensor is connect with the non-inverting input terminal of integrated transporting discharging A1, one end of capacitor C1 and the output end of integrated transporting discharging A1 Connection, the other end of capacitor C1 are connect with the inverting input terminal of integrated transporting discharging A1, the one end of one end of capacitor C1 also with resistance R1 Connection, the other end of capacitor C1 are also connect with the other end of resistance R1, and the other end of resistance R1 is connect with one end of resistance R2, electricity The other end ground connection of R2 is hindered, one end of resistance R1 is also connect with one end of capacitor C2, the other end of capacitor C2 and the one of resistance R3 End connection, the other end ground connection of resistance R3, the other end of capacitor C2 also connect with one end of resistance R4, the other end of resistance R4 and The inverting input terminal of integrated transporting discharging A2 connects, the non-inverting input terminal ground connection of integrated transporting discharging A2, one end of capacitor C3 and integrated transporting discharging The inverting input terminal of A2 connects, and the other end of capacitor C3 is connect with the output end of integrated transporting discharging A2, and capacitor C4 is in parallel with resistance R5 One end afterwards is connect with the output end of integrated transporting discharging A2, and the other end after capacitor C4 is in parallel with resistance R5 is same with integrated transporting discharging A1's The connection of phase input terminal, the other end after capacitor C4 is in parallel with resistance R5 are also connect with one end of resistance R6, the other end of resistance R6 Ground connection;
Signal filter unit includes resistance R7-R10, capacitor C5-C7 and integrated transporting discharging A3;Wherein, signal amplification unit is defeated Outlet is connect with one end of resistance R7, and the output end of the signal amplification unit is also connect with one end of capacitor C5, capacitor C5's Other end ground connection, the other end of resistance R7 are connect with one end of capacitor C6, the other end ground connection of capacitor C6, the other end of resistance R7 It is connect with the inverting input terminal of integrated transporting discharging A3, one end of resistance R8 is connect with the non-inverting input terminal of integrated transporting discharging A3, resistance R8 Other end ground connection, one end after resistance R9 is in parallel with capacitor C7 connect with the inverting input terminal of integrated transporting discharging A3, resistance R9 and The other end after capacitor C7 is in parallel is connect with the output end of integrated transporting discharging A3, the other end after resistance R9 is in parallel with capacitor C7 also with One end of resistance R10 connects, and one end of resistance R10 is connect with the output end of integrated transporting discharging A3, the other end of resistance R10 and center The port ADC of processor connects, and signal processing unit is by the end ADC of treated voltage signal V1 is transmitted to central processing unit Mouthful.
Compared with prior art, the present invention have it is following the utility model has the advantages that
Leather softening processing method provided by the invention tests the coolant-temperature gage in step 4 using temperature sensor, temperature Sensor is set in water, is converted to voltage signal for acquiring water temperature, and by the temperature signal of acquisition, and voltage signal is passed Signal processing circuit is transported to, signal processing circuit amplifies the temperature signal received, is filtered, and can improve to water temperature The measuring accuracy of degree, and then leather processing accuracy is improved, meanwhile, softening material is added in leather, so that it is good to have leather Permeability, enable the grease inside leather not volatile, extend the service life of leather.
Detailed description of the invention
Fig. 1 is the flow chart of leather softening processing method of the invention;
Fig. 2 is water temperature test schematic diagram of the invention;
Fig. 3 is the circuit diagram of signal processing circuit of the invention.
Specific embodiment
Leather softening processing method provided by the invention is described in detail with reference to the accompanying drawings and examples.
In embodiment 1 ~ 7, softening fatting agent selects fatting agent fatting agent FL-86;Anti- strand agent selects anti-strand agent SLB;Alkalinity Degreasing agent DN degreasing agent;Alkaline assistant selects FP auxiliary agent;Soft polyurethane ester fatting agent selects fatting agent 5007;Lecithin fatting agent Select fatting agent FS90;Acid resistance fatting agent selects fatting agent FT2278;Phosphatide fatting agent selects fatting agent BA;It is resistant to high temperatures acidproof Alkali fatting agent selects fatting agent BR;Tannin extract selects tannin extract 2150;Dispersing agent selects PR-C dispersing agent;Acrylic acid selects A33;Both sexes Fillers selection AN both sexes filler;Syntans selects SS syntans.
Embodiment 1: as shown in Figure 1, a kind of leather softening processing method provided by the invention, leather softening processing method packet Include following steps:
Step 1: the water that parts by weight are 90 parts and temperature is 50 DEG C is added into rotary drum for degreasing softening, then turns leather investment In drum, degreasing agent is added into rotary drum and adjusts PH to 4.5 ~ 4.8 and stays overnight, it is rear to be added 0.4 part of sodium bicarbonate, and it is automatic that rotary drum is arranged Stop 30min and turn 10min, rotate 120min, degreasing agent include 0.1 part alkaline defatting agent, 2 parts of alkaline assistants, 0.2 part it is average Add, 3 parts of macerating enzymes;
Step 2: the pre- stuffing of wash water, the water after degreasing is softened continue that 90 parts and temperature are added into rotary drum after exhausting to be 42 DEG C Water, after add 1 part of terephthalic acids double sodium salt, and stop after rotary drum rotation 30min, be further continued for being added 2 parts of softening fatting agents, 2 Part phosphatide SQS, rotary drum stop after starting turning 30min, add 0.3 part of formic acid, and stop operating after rotary drum rotation 10min, Titanium dioxide is added into rotary drum again, rotary drum stops after starting turning 60min;
Step 3: neutralizing, neutralizer is added into rotary drum and adjusts pH to 5.4 ~ 5.6, neutralizer includes 2 parts of sodium formates, 1 part of tannin Essence, 1 part, 1 part sodium bicarbonate of ammonium bicarbonate, 2 parts of soft polyurethane ester fatting agents;
Step 4: washing, it is that 42 DEG C of water are washed three times that temperature is added into rotary drum, turns 10min every time, drains;
Step 5: dyeing plus ester add 40 parts of water into rotary drum, and fatting agent is added afterwards, and rotary drum rotates 60min, is added after adding ester 0.1 part of mould inhibitor, fatting agent include 3 parts of lecithin fatting agents, 2 parts of acid resistance fatting agents, 2 parts of phosphatide fatting agents, 3 parts it is resistant to high temperatures Acid and alkali-resistance fatting agent;
Step 6: filler is added into rotary drum, anti-strand agent is added after rotary drum rotation 120min, rotates 10min for filling, rear automatic Very 25min rotates 5min and stays overnight, and filler includes 1 part of tannin extract, 0.5 part of dispersing agent, 1 part of acrylic acid, 1 part of protein filling, 1 part two Property filler, 4 parts of syntanses;
Step 7: mending cold water, into rotary drum plus cold water adjusts temperature in rotary drum, and 1 part of formic acid is added in three times, and control PH is 3.3 ~ 3.5, and every minor tick 10min, rotary drum rotates 20min after formic acid is added, and leather is taken out in draining;
Step 8: softening, Tu adorns softening agents on by treated the leather of above-mentioned steps 7.
Embodiment 2: as shown in Figure 1, a kind of leather softening processing method provided by the invention, leather softening processing method packet Include following steps:
Step 1: the water that parts by weight are 90 parts and temperature is 50 DEG C is added into rotary drum for degreasing softening, then turns leather investment In drum, degreasing agent is added into rotary drum and adjusts PH to 4.5 ~ 4.8 and stays overnight, rear to be added 0.5 part of sodium bicarbonate, setting rotary drum stops automatically 30min turns 10min, rotates 120min, degreasing agent include 0.12 part alkaline defatting agent, 2.2 parts of alkaline assistants, 0.4 part it is average Add, 2.5 parts of macerating enzymes;
Step 2: the pre- stuffing of wash water, the water after degreasing is softened continue that 95 parts and temperature are added into rotary drum after exhausting to be 44 DEG C Water, after add 1.2 parts of terephthalic acids double sodium salts, and stop after rotary drum rotation 30min, be further continued for that 2.5 parts of softening stuffings are added Agent, 2.5 parts of phosphatide SQS, rotary drum stop after starting turning 30min, add 0.32 part of formic acid, and stop after rotary drum rotation 10min Rotation stop is dynamic, then titanium dioxide is added into rotary drum, and rotary drum stops after starting turning 60min;
Step 3: neutralizing, neutralizer is added into rotary drum and adjusts pH to 5.4 ~ 5.6, neutralizer includes 2.2 parts of sodium formates, 1.1 parts Tannigen, 1.1 parts, 1.1 parts sodium bicarbonate of ammonium bicarbonate, 2.2 parts of soft polyurethane ester fatting agents;
Step 4: washing, it is that 42 DEG C of water are washed three times that temperature is added into rotary drum, turns 10min every time, drains;
Step 5: dyeing plus ester add 42 parts of water into rotary drum, and fatting agent is added afterwards, and rotary drum rotates 60min, is added after adding ester 0. 15 parts of mould inhibitors, fatting agent include 3.5 parts of lecithin fatting agents, 2.5 parts of acid resistance fatting agents, 2.5 parts of phosphatide fatting agents, 3.5 parts of acid and alkali-resistance fatting agents resistant to high temperatures;
Step 6: filler is added into rotary drum, anti-strand agent is added after rotary drum rotation 125min, rotates 10min for filling, rear automatic Very 25min rotates 5min and stays overnight, and filler is filled out including 1.5 parts of tannin extracts, 0.5 part of dispersing agent, 1.5 parts of acrylic acid, 1.5 parts of albumen Material, 1.2 parts of both sexes fillers, 4.5 parts of syntanses;
Step 7: mending cold water, into rotary drum plus cold water adjusts temperature in rotary drum, and 1.2 parts of formic acid are added in three times, and control PH is 3.3 ~ 3.5, and every minor tick 10min, rotary drum rotates 20min after formic acid is added, and leather is taken out in draining;
Step 8: softening, Tu adorns softening agents on by treated the leather of above-mentioned steps 7.
Embodiment 3: as shown in Figure 1, a kind of leather softening processing method provided by the invention, leather softening processing method packet Include following steps:
Step 1: the water that parts by weight are 92 parts and temperature is 50 DEG C is added into rotary drum for degreasing softening, then turns leather investment In drum, degreasing agent is added into rotary drum and adjusts PH to 4.5 ~ 4.8 and stays overnight, rear to be added 0.4 part of sodium bicarbonate, setting rotary drum stops automatically 30min turns 10min, rotates 120min, degreasing agent include 0.12 part alkaline defatting agent, 2.5 parts of alkaline assistants, 0.3 part it is average Add, 3.5 parts of macerating enzymes and 0.4 part of sodium bicarbonate;
Step 2: the pre- stuffing of wash water, the water after degreasing is softened continue that 902 parts and temperature are added into rotary drum after exhausting to be 43 DEG C Water, after add 1.2 parts of terephthalic acids double sodium salts, and stop after rotary drum rotation 30min, be further continued for being added 2.5 parts of softenings plus Rouge agent, 2.5 parts of phosphatide SQS, rotary drum stop after starting turning 30min, add 0.3 part of formic acid, and stop after rotary drum rotation 10min Rotation stop is dynamic, then titanium dioxide is added into rotary drum, and rotary drum stops after starting turning 60min;
Step 3: neutralizing, neutralizer is added into rotary drum and adjusts pH to 5.4 ~ 5.6, neutralizer includes 2.2 parts of sodium formates, 1.2 parts Tannigen, 1.2 parts, 1.2 parts sodium bicarbonate of ammonium bicarbonate, 2 parts of soft polyurethane ester fatting agents;
Step 4: washing, it is that 42 DEG C of water are washed three times that temperature is added into rotary drum, turns 10min every time, drains;
Step 5: dyeing plus ester add 45 parts of water into rotary drum, and fatting agent is added afterwards, and rotary drum rotates 60min, is added after adding ester 0.2 part of mould inhibitor, fatting agent include 3.5 parts of lecithin fatting agents, 2.5 parts of acid resistance fatting agents, 2.5 parts of phosphatide fatting agents, 4 parts Acid and alkali-resistance fatting agent resistant to high temperatures;
Step 6: filler is added into rotary drum, anti-strand agent is added after rotary drum rotation 130min, rotates 10min for filling, rear automatic Very 25min rotates 5min and stays overnight, and filler includes 2 parts of tannin extracts, 0.7 part of dispersing agent, 2 parts of acrylic acid, 2 parts of protein fillings, 1.5 parts Both sexes filler, 5 parts of syntanses;
Step 7: mending cold water, into rotary drum plus cold water adjusts temperature in rotary drum, and 1.5 parts of formic acid are added in three times, and control PH is 3.3 ~ 3.5, and every minor tick 10min, rotary drum rotates 20min after formic acid is added, and leather is taken out in draining;
Step 8: softening, Tu adorns softening agents on by treated the leather of above-mentioned steps 7.
Embodiment 4: as shown in Figure 1, a kind of leather softening processing method provided by the invention, leather softening processing method packet Include following steps:
Step 1: the water that parts by weight are 92 parts and temperature is 50 DEG C is added into rotary drum for degreasing softening, then turns leather investment In drum, degreasing agent is added into rotary drum and adjusts PH to 4.5 ~ 4.8 and stays overnight, rear to be added 0.45 part of sodium bicarbonate, setting rotary drum is automatic Stop 30min and turn 10min, after rotating 120min, degreasing agent includes 0.12 part of alkaline defatting agent, 2.5 parts of alkaline assistants, 0. 3 parts Peregal, 4 parts of macerating enzymes;
Step 2: the pre- stuffing of wash water, the water after degreasing is softened continue that 92 parts and temperature are added into rotary drum after exhausting to be 42 DEG C Water, after add 1.2 parts of terephthalic acids double sodium salts, and stop after rotary drum rotation 30min, be further continued for that 2.5 parts of softening stuffings are added Agent, 2.5 parts of phosphatide SQS, rotary drum stop after starting turning 30min, add 0.4 part of formic acid, and stop after rotary drum rotation 10min Rotation, then titanium dioxide is added into rotary drum, rotary drum stops after starting turning 60min;
Step 3: neutralizing, neutralizer is added into rotary drum and adjusts pH to 5.4 ~ 5.6, neutralizer includes 2.2 parts of sodium formates, 1.2 parts Tannigen, 1.2 parts, 1.2 parts sodium bicarbonate of ammonium bicarbonate, 2.5 parts of soft polyurethane ester fatting agents;
Step 4: washing, it is that 42 DEG C of water are washed three times that temperature is added into rotary drum, turns 10min every time, drains;
Step 5: dyeing plus ester add 45 parts of water into rotary drum, and fatting agent is added afterwards, and rotary drum rotates 60min, is added after adding ester 0.25 part of mould inhibitor, fatting agent include 3.5 parts of lecithin fatting agents, 2.5 parts of acid resistance fatting agents, 2.5 parts of phosphatide fatting agents, 4 Part acid and alkali-resistance fatting agent resistant to high temperatures;
Step 6: filler is added into rotary drum, anti-strand agent is added after rotary drum rotation 135min, rotates 10min for filling, rear automatic Very 25min rotates 5min and stays overnight, and filler includes 2 parts of tannin extracts, 0.75 part of dispersing agent, 2 parts of acrylic acid, 2 parts of protein fillings, 1.5 Part both sexes filler, 3.5 parts of syntanses;
Step 7: mending cold water, into rotary drum plus cold water adjusts temperature in rotary drum, and 1.5 parts of formic acid are added in three times, and control PH is 3.3 ~ 3.5, and every minor tick 10min, rotary drum rotates 20min after formic acid is added, and leather is taken out in draining;
Step 8: softening, Tu adorns softening agents on by treated the leather of above-mentioned steps 7.
Embodiment 5: as shown in Figure 1, a kind of leather softening processing method provided by the invention, leather softening processing method packet Include following steps:
Step 1: the water that parts by weight are 92 parts and temperature is 50 DEG C is added into rotary drum for degreasing softening, then turns leather investment In drum, degreasing agent is added into rotary drum and adjusts PH to 4.5 ~ 4.8 and stays overnight, rear to be added 0.4 part of sodium bicarbonate, setting rotary drum stops automatically 30min turns 10min, rotates 120min, degreasing agent include 0.13 part alkaline defatting agent, 2.5 parts of alkaline assistants, 0.2 part it is average Add, 4 parts of macerating enzymes;
Step 2: the pre- stuffing of wash water, the water after degreasing is softened continue that 92 parts and temperature are added into rotary drum after exhausting to be 42 Water, after add 1.4 parts of terephthalic acids double sodium salts, and stop after rotary drum rotation 30min, be further continued for that 2.6 parts of softening stuffings are added Agent, 2.6 parts of phosphatide SQS, rotary drum stop after starting turning 30min, add 0.4 part of formic acid, and stop after rotary drum rotation 10min Rotation, then titanium dioxide is added into rotary drum, rotary drum stops after starting turning 60min;
Step 3: neutralizing, neutralizer is added into rotary drum and adjusts pH to 5.4 ~ 5.6, neutralizer includes 2.3 parts of sodium formates, 1.3 parts Tannigen, 1.3 parts, 1.3 parts sodium bicarbonate of ammonium bicarbonate, 2.5 parts of soft polyurethane ester fatting agents;
Step 4: washing, it is that 43 DEG C of water are washed three times that temperature is added into rotary drum, turns 10min every time, drains;
Step 5: dyeing plus ester add 45 parts of water into rotary drum, and fatting agent is added afterwards, and rotary drum rotates 60min, is added after adding ester 0.4 part of mould inhibitor, fatting agent include 3.6 parts of lecithin fatting agents, 2.6 parts of acid resistance fatting agents, 2.6 parts of phosphatide fatting agents, 4.2 Part acid and alkali-resistance fatting agent resistant to high temperatures;
Step 6: filler is added into rotary drum, anti-strand agent is added after rotary drum rotation 140min, rotates 10min for filling, rear automatic Very 25min rotates 5min and stays overnight, and filler is filled out including 2.5 parts of tannin extracts, 0.7 part of dispersing agent, 2.4 parts of acrylic acid, 2.5 parts of albumen Material, 1.5 parts of both sexes fillers, 5 parts of syntanses;
Step 7: mending cold water, into rotary drum plus cold water adjusts temperature in rotary drum, and 1.6 parts of formic acid are added in three times, and control PH is 3.3 ~ 3.5, and every minor tick 10min, rotary drum rotates 20min after formic acid is added, and leather is taken out in draining;
Step 8: softening, Tu adorns softening agents on by treated the leather of above-mentioned steps 7.
Embodiment 6: as shown in Figure 1, a kind of leather softening processing method provided by the invention, leather softening processing method packet Include following steps:
Step 1: the water that parts by weight are 94 parts and temperature is 52 DEG C is added into rotary drum for degreasing softening, then turns leather investment In drum, degreasing agent is added into rotary drum and adjusts PH to 4.5 ~ 4.8 and stays overnight, rear to be added 0.48 part of sodium bicarbonate, setting rotary drum is automatic Stop 30min and turn 10min, rotate 120min, degreasing agent include 0.14 part alkaline defatting agent, 2.8 parts of alkaline assistants, 0.3 part it is flat It is flat plus, 4.5 parts of macerating enzymes;
Step 2: the pre- stuffing of wash water, the water after degreasing is softened continue that 94 parts and temperature are added into rotary drum after exhausting to be 43 DEG C Water, after add 1.4 parts of terephthalic acids double sodium salts, and stop after rotary drum rotation 30min, be further continued for that 2.8 parts of softening stuffings are added Agent, 2.8 parts of phosphatide SQS, rotary drum stop after starting turning 30min, add 0.45 part of formic acid, and stop after rotary drum rotation 10min Rotation stop is dynamic, then titanium dioxide is added into rotary drum, and rotary drum stops after starting turning 60min;
Step 3: neutralizing, neutralizer is added into rotary drum and adjusts pH to 5.4 ~ 5.6, neutralizer includes 2.4 parts of sodium formates, 1.4 parts Tannigen, 1.4 parts, 1.4 parts sodium bicarbonate of ammonium bicarbonate, 2.8 parts of soft polyurethane ester fatting agents;
Step 4: washing, it is that 43 DEG C of water are washed three times that temperature is added into rotary drum, turns 10min every time, drains;
Step 5: dyeing plus ester add 48 parts of water into rotary drum, and fatting agent is added afterwards, and rotary drum rotates 60min, is added after adding ester 0.45 part of mould inhibitor, fatting agent include 3.8 parts of lecithin fatting agents, 2.8 parts of acid resistance fatting agents, 2.8 parts of phosphatide fatting agents, 4.5 parts of acid and alkali-resistance fatting agents resistant to high temperatures;
Step 6: filler is added into rotary drum, anti-strand agent is added after rotary drum rotation 145min, rotates 10min for filling, rear automatic Very 25min rotates 5min and stays overnight, and filler is filled out including 2.8 parts of tannin extracts, 0.8 part of dispersing agent, 2.5 parts of acrylic acid, 2.5 parts of albumen Material, 1.8 parts of both sexes fillers, 5.5 parts of syntanses;
Step 7: mending cold water, into rotary drum plus cold water adjusts temperature in rotary drum, and 1.8 parts of formic acid are added in three times, and control PH is 3.3 ~ 3.5, and every minor tick 10min, rotary drum rotates 20min after formic acid is added, and leather is taken out in draining;
Step 8: softening, Tu adorns softening agents on by treated the leather of above-mentioned steps 7.
Embodiment 7: as shown in Figure 1, a kind of leather softening processing method provided by the invention, leather softening processing method packet Include following steps:
Step 1: the water that parts by weight are 95 parts and temperature is 52 DEG C is added into rotary drum for degreasing softening, then turns leather investment In drum, degreasing agent is added into rotary drum and adjusts PH to 4.5 ~ 4.8 and stays overnight, rear to be added 0.5 part of sodium bicarbonate, setting rotary drum stops automatically 30min turns 10min, after rotating 120min, degreasing agent include 0.15 part alkaline defatting agent, 3 parts of alkaline assistants, 0.4 part it is average Add, 5 parts of macerating enzymes and 0.5 part of sodium bicarbonate;
Step 2: the pre- stuffing of wash water, the water after degreasing is softened continue that 90 ~ 95 parts and temperature are added into rotary drum after exhausting to be 44 DEG C water, after add 1.5 parts of terephthalic acids double sodium salts, and stop after rotary drum rotation 30min, be further continued for being added 3 parts of softenings plus Rouge agent, 3 parts of phosphatide SQS, rotary drum stop after starting turning 30min, add 0.5 part of formic acid, and stop after rotary drum rotation 10min Rotation, then titanium dioxide is added into rotary drum, rotary drum stops after starting turning 60min;
Step 3: neutralizing, neutralizer is added into rotary drum and adjusts pH to 5.4 ~ 5.6, neutralizer includes 2.5 parts of sodium formates, 1.5 parts Tannigen, 1.5 parts, 1.5 parts sodium bicarbonate of ammonium bicarbonate, 3 parts of soft polyurethane ester fatting agents;
Step 4: washing, it is that 44 DEG C of water are washed three times that temperature is added into rotary drum, turns 10min every time, drains;
Step 5: dyeing plus ester add 50 parts of water into rotary drum, and fatting agent is added afterwards, and rotary drum rotates 60min, is added after adding ester 0.5 part of mould inhibitor, fatting agent include 4 parts of lecithin fatting agents, 3 parts of acid resistance fatting agents, 3 parts of phosphatide fatting agents, 5 parts it is resistant to high temperatures Acid and alkali-resistance fatting agent;
Step 6: filler is added into rotary drum, anti-strand agent is added after rotary drum rotation 150min, rotates 10min for filling, rear automatic Very 25min rotates 5min and stays overnight, and filler includes 3 parts of tannin extracts, 1 part of dispersing agent, 3 parts of acrylic acid, 3 parts of protein fillings, 2 parts of both sexes Filler, 4 ~ 6 parts of syntanses;
Step 7: mending cold water, into rotary drum plus cold water adjusts temperature in rotary drum, and 2 parts of formic acid are added in three times, and control PH is 3.3 ~ 3.5, and every minor tick 10min, rotary drum rotates 20min after formic acid is added, and leather is taken out in draining;
Step 8: softening, Tu adorns softening agents on by treated the leather of above-mentioned steps 7.
Dye-uptake after detecting the leather coloring of embodiment 1 ~ 7 is 98.2%, degree of fixation 2.5%, and softening degree is 27%.
In step 8 in above-described embodiment 1 ~ 7, softening agents includes the raw material of following number: 12 mass parts dodecyl sulphur Sour sodium, 8 mass parts sulfonation greases, 1 mass parts emulsifier, 4 mass parts glycerin monostearates, 10 mass parts butanediols, 3 mass Part mould inhibitor, 1 mass parts epoxy resin, 2 mass parts sodium lauryl sulfates, 12 mass parts amido silicon oils.
As Figure 2-3, in the step 4 of above-described embodiment 1 ~ 7, into rotary drum, water is washed preference temperature is added When, water temperature is tested using temperature sensor and signal processing circuit, temperature sensor is set in water, for acquiring water Temperature, the voltage signal V0 of the output end output characterization water temperature of temperature sensor, and voltage signal V0 is transmitted to signal processing Circuit, V1 are by signal processing circuit treated voltage signal, and signal processing circuit includes signal amplification unit and signal The input terminal of filter unit, the output end of temperature sensor and signal amplification unit connects, the output end of signal amplification unit with The input terminal of signal filter unit connects, and the output end of signal filter unit and the port ADC of central processing unit connect.
Preferably, signal amplification unit includes integrated transporting discharging A1-A2, resistance R1-R6 and capacitor C1-C4;Wherein, warm The output end of degree sensor is connect with the non-inverting input terminal of integrated transporting discharging A1, one end of capacitor C1 and the output end of integrated transporting discharging A1 Connection, the other end of capacitor C1 are connect with the inverting input terminal of integrated transporting discharging A1, the one end of one end of capacitor C1 also with resistance R1 Connection, the other end of capacitor C1 are also connect with the other end of resistance R1, and the other end of resistance R1 is connect with one end of resistance R2, electricity The other end ground connection of R2 is hindered, one end of resistance R1 is also connect with one end of capacitor C2, the other end of capacitor C2 and the one of resistance R3 End connection, the other end ground connection of resistance R3, the other end of capacitor C2 also connect with one end of resistance R4, the other end of resistance R4 and The inverting input terminal of integrated transporting discharging A2 connects, the non-inverting input terminal ground connection of integrated transporting discharging A2, one end of capacitor C3 and integrated transporting discharging The inverting input terminal of A2 connects, and the other end of capacitor C3 is connect with the output end of integrated transporting discharging A2, and capacitor C4 is in parallel with resistance R5 One end afterwards is connect with the output end of integrated transporting discharging A2, and the other end after capacitor C4 is in parallel with resistance R5 is same with integrated transporting discharging A1's The connection of phase input terminal, the other end after capacitor C4 is in parallel with resistance R5 are also connect with one end of resistance R6, the other end of resistance R6 Ground connection.
Signal filter unit includes resistance R7-R10, capacitor C5-C7 and integrated transporting discharging A3;Wherein, signal amplification unit Output end connect with one end of resistance R7, the output end of the signal amplification unit is also connect with one end of capacitor C5, capacitor The other end of C5 is grounded, and the other end of resistance R7 is connect with one end of capacitor C6, and the other end ground connection of capacitor C6, resistance R7's is another One end is connect with the inverting input terminal of integrated transporting discharging A3, and one end of resistance R8 is connect with the non-inverting input terminal of integrated transporting discharging A3, electricity The other end ground connection of R8 is hindered, one end after resistance R9 is in parallel with capacitor C7 is connect with the inverting input terminal of integrated transporting discharging A3, resistance The other end after R9 is in parallel with capacitor C7 is connect with the output end of integrated transporting discharging A3, the other end after resistance R9 is in parallel with capacitor C7 Also connect with one end of resistance R10, one end of resistance R10 is connect with the output end of integrated transporting discharging A3, the other end of resistance R10 with The port ADC of central processing unit connects, and signal processing unit is by the ADC of treated voltage signal V1 is transmitted to central processing unit Port.
In above embodiment, the noise of signal processing circuit drifts about within 40nV as 0.5 μ V/ DEG C, integrated transporting discharging A1 For LT1028 amplifier, integrated transporting discharging A2 and integrated transporting discharging A3 are LT1097 amplifier, and the gain of signal amplification unit is by R1 and R2 Ratio determine, since the direct current offset of integrated transporting discharging A1 and drift will not influence the overall offset of circuit, so that electric There are extremely low offset and drift in road.
The resistance value of resistance R1 is 10K Ω, and the resistance value of resistance R2 is 10 Ω, and the resistance value of resistance R3 is 100K Ω, resistance R4's Resistance value is 100K Ω, and the resistance value of resistance R5 is 10K Ω, and the resistance value of resistance R6 is 10 Ω, and the resistance value of resistance R7 is 10K Ω, resistance The resistance value of R8 is 15K Ω, and the resistance value of resistance R9 is 15K Ω, and the resistance value of resistance R10 is 12K Ω, and the capacitance of capacitor C1 is The capacitance of 470pF, capacitor C2 are 1 μ F, and the capacitance of capacitor C3 is 1 μ F, and the capacitance of capacitor C4 is 470pF, capacitor C5's Capacitance is 2 μ F, and the capacitance of capacitor C6 is 1.2 μ F, and the capacitance of capacitor C7 is 1.4 μ F.
Since the signal of temperature sensor acquisition is faint voltage signal, thus signal amplification unit passes through resistance R1- R6, capacitor C1-C4 and integrated transporting discharging A1-A2 amplify processing to the voltage V0 that temperature sensor exports, and then reuse Resistance R7-R10, capacitor C5-C7 and integrated transporting discharging A3 carry out low-pass filtering treatment to by amplified voltage signal, thus Improve the precision of temperature detection.
Staff obtains the temperature information of temperature sensor acquisition by display device, to know brine temp in real time.
It should be noted last that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting.Although ginseng It is described the invention in detail according to embodiment, those skilled in the art should understand that, to technical side of the invention Case is modified or replaced equivalently, and without departure from the spirit and scope of technical solution of the present invention, should all be covered in the present invention Scope of the claims in.

Claims (10)

1. a kind of leather softening processing method, which is characterized in that the leather softening processing method the following steps are included:
Step 1: degreasing softening the water that parts by weight are 90 ~ 95 parts and temperature is 50 ~ 52 DEG C is added into rotary drum, then by leather It puts into rotary drum, degreasing agent is added into rotary drum and adjusts PH to 4.5 ~ 4.8 and stays overnight, it is rear to be added 0.4 ~ 0.5 part of sodium bicarbonate, and set It sets rotary drum and stops 30min automatically and turn 10min, rotate 120min;
Step 2: the pre- stuffing of wash water, the water after degreasing is softened exhaust and continue to be added into rotary drum 90 ~ 95 parts and temperature be 42 ~ 44 DEG C of water, after add 1 ~ 1.5 part of terephthalic acids double sodium salt, and stop after rotary drum rotation 30min, be further continued for 2 ~ 3 parts of addition Soften fatting agent, stops after 2 ~ 3 parts of phosphatide SQS, rotary drum rotation 30min, add 0.3 ~ 0.5 part of formic acid, and rotary drum rotates It stops operating after 10min, then titanium dioxide is added into rotary drum, rotary drum stops after starting turning 60min;
Step 3: neutralizing, neutralizer is added into rotary drum and adjusts pH to 5.4 ~ 5.6, rear rotary drum rotates 30min;
Step 4: washing, it is that 42 ~ 44 DEG C of water are washed three times that temperature is added into rotary drum, turns 10min every time, drains;
Step 5: dyeing plus ester add 40 ~ 50 parts of water into rotary drum, and fatting agent is added afterwards, and rotary drum rotates 60min;
Step 6: filler is added into rotary drum for filling, and rotary drum is added anti-strand agent after rotating 120 ~ 150min, rotates 10min, after Automatically stop 25min rotation 5min to stay overnight;
Step 7: mend cold water, into rotary drum plus cold water adjust rotary drum in temperature, and in three times be added 1 ~ 2 part of formic acid, and every time between Every 10min, rotary drum rotates 20min after formic acid is added, and leather is taken out in draining;
Step 8: softening, Tu adorns softening agents on by treated the leather of above-mentioned steps 7.
2. leather softening processing method according to claim 1, which is characterized in that in step 1 degreasing agent include 0.1 ~ 0.15 part of alkaline defatting agent, 2 ~ 3 parts of alkaline assistants, 0.2 ~ 0.4 part of peregal, 3 ~ 5 parts of WB macerating enzymes and 0.4 ~ 0.5 part of little Su It beats.
3. leather softening processing method according to claim 1, which is characterized in that neutralizer includes 2 ~ 2.5 parts in step 3 Sodium formate, 1 ~ 1.5 part of tannigen, 1 ~ 1.5 part of ammonium bicarbonate, 1 ~ 1.5 part of sodium bicarbonate, 2 ~ 3 parts of soft polyurethane ester fatting agents.
4. leather softening processing method according to claim 1, which is characterized in that fatting agent includes 3 ~ 4 parts of ovum in step 5 Phosphatide fatting agent, 2 ~ 3 parts of acid resistance fatting agents, 2 ~ 3 parts of phosphatide fatting agents, 3 ~ 5 parts of acid and alkali-resistance fatting agents resistant to high temperatures.
5. leather softening processing method according to claim 1, which is characterized in that be added 0.1 in step 5 plus after ester ~ 0.5 part of mould inhibitor.
6. leather softening processing method according to claim 1, which is characterized in that filler includes 1 ~ 3 portion of evergreen chinquapin in step 6 Glue, 0.5 ~ 1 part of dispersing agent, 1 ~ 3 part of acrylic acid, 1 ~ 3 part of protein filling, 1 ~ 2 part of both sexes filler, 4 ~ 6 parts of syntanses.
7. leather softening processing method according to claim 1, which is characterized in that controlling PH in step 7 is 3.3 ~ 3.5.
8. leather softening processing method according to claim 1, which is characterized in that in step 8, softening agents includes following part Several raw material: 12 mass parts lauryl sodium sulfate, 8 mass parts sulfonation greases, 1 mass parts emulsifier, 4 mass parts monostearates Glyceride, 10 mass parts butanediols, 3 mass parts mould inhibitors, 1 mass parts epoxy resin, 2 mass parts sodium lauryl sulfates, 12 matter Measure part amido silicon oil.
9. leather softening processing method according to claim 1, which is characterized in that in step 4, temperature is added into rotary drum When being washed for 42 ~ 44 DEG C of water, water temperature is tested using temperature sensor and signal processing circuit, temperature sensor is set to In water, for acquiring coolant-temperature gage, the voltage signal V0 of the output end output characterization water temperature of temperature sensor, and by voltage signal V0 It is transmitted to signal processing circuit, V1 is by signal processing circuit treated voltage signal, and signal processing circuit includes signal Amplifying unit and signal filter unit, the output end of temperature sensor and the input terminal of signal amplification unit connect, signal amplification The output end of unit is connect with the input terminal of signal filter unit, the output end of signal filter unit and the ADC of central processing unit Port connection.
10. leather softening processing method according to claim 9, which is characterized in that signal amplification unit includes integrated fortune Put A1-A2, resistance R1-R6 and capacitor C1-C4;Wherein, the homophase input of the output end of temperature sensor and integrated transporting discharging A1 End connection, one end of capacitor C1 are connect with the output end of integrated transporting discharging A1, the other end of capacitor C1 and the reverse phase of integrated transporting discharging A1 Input terminal connection, one end of capacitor C1 are also connect with one end of resistance R1, the other end of the other end of capacitor C1 also with resistance R1 Connection, the other end of resistance R1 connect with one end of resistance R2, and the other end of resistance R2 is grounded, one end of resistance R1 also with capacitor One end of C2 connects, and the other end of capacitor C2 is connect with one end of resistance R3, and the other end ground connection of resistance R3, capacitor C2's is another End is also connect with one end of resistance R4, and the other end of resistance R4 is connect with the inverting input terminal of integrated transporting discharging A2, integrated transporting discharging A2 Non-inverting input terminal ground connection, one end of capacitor C3 connect with the inverting input terminal of integrated transporting discharging A2, the other end and collection of capacitor C3 It is connected at the output end of amplifier A2, one end after capacitor C4 is in parallel with resistance R5 is connect with the output end of integrated transporting discharging A2, capacitor The other end after C4 is in parallel with resistance R5 is connect with the non-inverting input terminal of integrated transporting discharging A1, another after capacitor C4 is in parallel with resistance R5 One end is also connect with one end of resistance R6, the other end ground connection of resistance R6;
Signal filter unit includes resistance R7-R10, capacitor C5-C7 and integrated transporting discharging A3;Wherein, signal amplification unit is defeated Outlet is connect with one end of resistance R7, and the output end of the signal amplification unit is also connect with one end of capacitor C5, capacitor C5's Other end ground connection, the other end of resistance R7 are connect with one end of capacitor C6, the other end ground connection of capacitor C6, the other end of resistance R7 It is connect with the inverting input terminal of integrated transporting discharging A3, one end of resistance R8 is connect with the non-inverting input terminal of integrated transporting discharging A3, resistance R8 Other end ground connection, one end after resistance R9 is in parallel with capacitor C7 connect with the inverting input terminal of integrated transporting discharging A3, resistance R9 and The other end after capacitor C7 is in parallel is connect with the output end of integrated transporting discharging A3, the other end after resistance R9 is in parallel with capacitor C7 also with One end of resistance R10 connects, and one end of resistance R10 is connect with the output end of integrated transporting discharging A3, the other end of resistance R10 and center The port ADC of processor connects, and signal processing unit is by the end ADC of treated voltage signal V1 is transmitted to central processing unit Mouthful.
CN201811054425.5A 2018-09-11 2018-09-11 A kind of leather softening processing method Pending CN109097509A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111321261A (en) * 2020-02-19 2020-06-23 漳州信德皮革有限公司 Cow leather fatting agent and fatting process

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CN203185746U (en) * 2013-04-24 2013-09-11 温州致富皮业有限公司 Composite leather
CN108130391A (en) * 2017-12-09 2018-06-08 成都岚牌-辛普皮业有限公司 A kind of leather pretreating process
CN108203746A (en) * 2018-02-28 2018-06-26 张云 A kind of bating agent

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Publication number Priority date Publication date Assignee Title
CN203185746U (en) * 2013-04-24 2013-09-11 温州致富皮业有限公司 Composite leather
CN108130391A (en) * 2017-12-09 2018-06-08 成都岚牌-辛普皮业有限公司 A kind of leather pretreating process
CN108203746A (en) * 2018-02-28 2018-06-26 张云 A kind of bating agent

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111321261A (en) * 2020-02-19 2020-06-23 漳州信德皮革有限公司 Cow leather fatting agent and fatting process

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