CN1928123A - Hair-protection and hair-removing composition of organosilicon and enzyme and method for hair-protection and hair-removing animal skin by the same - Google Patents
Hair-protection and hair-removing composition of organosilicon and enzyme and method for hair-protection and hair-removing animal skin by the same Download PDFInfo
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Abstract
One kind of hair-keeping and eliminating silicone-enzyme composition and the method of using the composition in treating animal hide are disclosed. The composition consists of water soluble silicone polymer and coarse enzyme preparation. When the composition is used in treating leather, the leather is first rolled in a roller with the composition to loosen the hair root without hair falling, and then coated with the composition and piled to depilate completely, with the hair being recovered. The depilating process with the composition is simple, and can obtain high quality leather.
Description
Technical field
The present invention relates to a kind of organosilicon and enzyme hair-protection and hair-removing composition composition and animal skin is protected the method that the hair depilation is handled.Belong to the process hides field of engineering technology.
Background technology
The tradition leather-making technology adopts salted method to preserve raw material skin, soda ash degreasing, machine epilation, buttocks bag ash (sodium sulphite, lime) or bag enzyme, Sodium Sulphide to ruin hair, lime liming, ammonium salt deliming, Sodium sulfate anhydrous.min(99) and roll operations such as nitre, pancreatin soften, sulfuric acid pickling, the tanning of alkali formula chromic salts, thereby contain a large amount of acid, alkali, salt and trivalent chromic ion in the waste water of tannery's discharging, surrounding environment there is serious pollution.Pollute in order to reduce leather industry, develop the environmental-friendly leather chemical and improve traditional leather-making technology extremely urgent.
Existing blue skin technology (prepare workshop section) to be adopted Sodium Sulphide to ruin hair and grey repeatedly alkali swelling or liquid caustic soda to expand and remove matter between fur and materials with hide glue fibril, in the dispersion treatment materials with hide glue fibril,, be the most serious workshop section of pollution in leather industry also to mashed in a large number hairless protein waste liquid of extraneous environmental emission and inorganic base substance.Sheepskin is to bank up after for some time with the flesh noodles that furnishing pasty states such as Sodium Sulphide and lime are applied to skin again, pushes away hair by hand; Ox-hide, pigskin then are to ruin hair with Sodium Sulphide and lime in water-bath in rotary drum.Sulfur compound in the relief liquor, lime and animal wool dissolving back produce ruins the hairless protein waste liquid in a large number, and all there is severe contamination in the operation of therefore losing hair or feathers.
In order to reduce the consumption of mineral alkali, often selecting carbon for use in process hides preparation workshop section is the surface tension that tensio-active agent reduces water, with the emulsification solublization of enhancing to intracutaneous fat and interfibrillar substance, thus the consumption of minimizing mineral alkali.
Enzyme unhairing is a kind of cleaning leather-making technology.The proteolytic enzyme of tradition enzyme unhairing process using mostly is crude zyme preparation, purity is low, quality is unstable, specificity is poor, enzyme is that component is many, effect is complicated, thereby be prone to quality accidents such as the unclean or mashed face of depilation, loose side, enzyme shadow, pore expansion in the depilation treating processes, thereby technology instability, the control difficulty is big, quality accident very easily takes place in improper use, so be not widely used as yet.
At present, enzyme process being protected mao research of depilation both at home and abroad is auxiliary trichogen with sodium sulphite mainly still.People such as E.BerlaThangam cultivate a kind of Sumizyme MP and cooperate the depilation that is used for goatskin with sodium sulphite, find to cooperate processing after 20 hours when the sodium sulphite of 0.5% this kind of enzyme and 1%, wool can be taken off (E.BerlaThangam at an easy rate, T.Nagarajan, G.Suseela Rajkumar.Application of alkaline protease isolated fromalcaligenesfaecalis for enzymatic unhairing in tanneries.JALCA, 2001,96:127～132).But this Sumizyme MP is difficult for obtaining, and is difficult to large-scale production, and the consumption of sodium sulphite is still higher.
Chinese patent 90101445.1 " thoroughly solving the grey enzyme unhairing novel process of sulphur pollution " utilizes proteolytic enzyme to lose hair or feathers under the lime effect to replace sulfide fully, solve the pollution problem of sulphur, but exist technique controlling difficulty big, be prone to depilation not to the utmost or mashed face phenomenon.Chinese patent 03135883-7 " less thiolase process Depilatory composition and depilation method in water bath thereof ", 03135882.9 " the few sulphur enzyme unhairing composition and the depilating method of banking up thereof " is for assisting trichogen or ruining a mao agent with a small amount of sodium sulphite, also use the lime liming, equally also exist sulfonium ion and lime to pollute, and enzyme bank up the depilation time can not be above 72 hours.
The present inventor finds, comparing carbon is tensio-active agent, organic silicon surfactant is used for the surface tension that traditional blue skin technology more can significantly reduce hydrate molecules such as inorganic salt, highly basic, strong acid, make the effect of operation liquid and materials with hide glue fibril become mitigations, evenly, lasting, deep, to improve wetting, the perviousness of operation liquid to hide fiber, strengthen simultaneously emulsification, solubilising and dissemination better, alkali lye saponification hydrolysis efficiency is increased greatly intracutaneous fat, interfibrillar substance.Therefore, under the situation that equal quality requires, select for use organic silicon surfactant can reduce the consumption of acid in the blue skin technology, alkali, salt, promote chrome uptake, reduce the pollution of objectionable impurities environment.But use still can not be completely abolished the use of Sodium Sulphide, lime separately.
The present inventor finds, organosilicon material also can be used as enzyme inhibitors, buffer reagent, dispersion agent, permeate agent, emulsifying agent preferably, it combines with biological crude zyme preparation and is applied to enzyme process degreasing, rotary drum and rolls enzyme and protect hair, buttocks and be coated with bank up depilation, enzyme process rotary drum of enzyme and can make zymin operate the liquid surface tension when softening to reduce greatly, make that the chemical action of enzyme had become not only fully, gentleness but also even, perviousness strengthens, effectively improve the tolerance of materials with hide glue fibril, improve controllability and the security of zymin greatly the materials with hide glue fibril effect to enzyme Journal of Molecular Catalysis hydrolytic action.By the comprehensive action of enzyme to interfibrillar substances such as hair follicle, lipoproteins, the normal dispersion state (avoiding loose side) that also can remove interfibrillar substance steadily and keep materials with hide glue fibril well in degreasing, depilation to be reaching the purpose of dispersion, softening materials with hide glue fibril, ruins hair, lime liming, ammonium salt deliming, rolls operation such as nitre thereby completely abolish in traditional blue skin technology Sodium Sulphide.
New through looking into, not seeing as yet both at home and abroad has waterborne organic silicon polymkeric substance and biological crude zyme preparation that animal skin is protected the reported in literature that the hair depilation is handled.
Summary of the invention
A method that the objective of the invention is to provide a kind of organosilicon and enzyme hair-protection and hair-removing composition composition at the deficiencies in the prior art and animal skin is protected the hair depilation.The composition that is characterized in use organosilicon polymer and biological crude zyme preparation rolls enzyme to animal skin and protects and be coated with the enzyme depilation of banking up after the hair pre-treatment again in rotary drum.Hair root was slightly loosening after rotary drum rolled the pre-treatment of enzyme guarantor hair, did not have the hair of falling, knot ball top phenomenon; Being coated with enzyme banks up and has the advantages that depilation is clean, Mao Kequan reclaims, the skin base is pure white after the depilation, can fully phase out grey alkaline process bag ash, Sodium Sulphide and ruin hair, lime liming, ammonium salt, deliming, roll operation such as nitre, and pore-free enlarges, the hair perforation, bore bad phenomenon such as little Mao, mashed face, loose side, enzyme shadow.
Purpose of the present invention is realized that by following technical measures wherein said raw material umber is parts by weight except that specified otherwise.
1, organosilicon and enzyme hair-protection and hair-removing composition composition
(1) rotary drum rolls enzyme and protects the hair pre-treatment and protect mao recipe ingredient of agent composition with organosilicon and enzyme and be:
The skin base is pressed 100 parts of rawhide restatements
Industrial table salt 3-6 part
Organosilicon inhibitor 0.1-0.6 part
Organosilyl surfactant 0.1-0.5 part
Organosilicon buffer reagent 0.1-0.5 part
Proteinase-10 .1-0.3 part
Pancreatin 0.05-0.2 part
Fine rice bran 0.8-1.5 part
Wherein, the organosilicon inhibitor is the hydrophilic polymethyl siloxane that polyethers and trimethyl-glycine alkyl are total to modification, and the key technical indexes is: 20 ℃ of (g/ml) 0.98 of density, non-volatile component 28～30%, aqueous solvent, pH value 6.0～6.5, viscosity (mpa.s) 35～45, outward appearance are the translucent liquid of canescence;
Organosilyl surfactant is the mixture of polyethers and sulphiting carboxylic alkyl co-modified hydrophilic polymethyl siloxane and organic alcohol amine, the key technical indexes is: 20 ℃ of (g/ml) 0.95 of density, non-volatile component 33～35%, aqueous solvent, pH value 7.0～7.6, viscosity (mpa.s) 100～120, outward appearance are that canescence is to the muddy thick shape liquid of oyster white;
The organosilicon buffer reagent is polyethers and phosphoric acid ester alkyl co-modified hydrophilic polymethyl siloxane, and the key technical indexes is: 20 ℃ of (g/ml) 0.92 of density, non-volatile component 46～49%, aqueous solvent, pH value 6.5～7.0, viscosity (mpa.s) 130～150, outward appearance are that light brown is than thick liquid;
Proteolytic enzyme is any in 1398 proteolytic enzyme, 166 proteolytic enzyme, 3942 proteolytic enzyme, enzyme activity 50,000 units/gram.
The fine rice bran particle diameter is 50～85 microns a husk particle;
(2) being coated with the enzyme depilation of banking up handles and with organosilicon and enzyme unhairing agent composite formula component to be:
The skin base is pressed 100 parts of rawhide restatements
Organosilicon dispersion agent 0.2-0.6 part
Organosilyl surfactant 0.1-0.5 part
Organosilicon permeate agent 0.1-0.4 part
Water 1-2.8 part
Proteolytic enzyme 1-2.3 part
Pancreatin 0.5-1 part
Fine rice bran 1-2.5 part
Wherein, the organosilicon dispersion agent is the mixture of polyethers and ammonia alkyl co-modified hydrophilic polymethyl siloxane and vegetables oil phosphorylation sulphiting product, the key technical indexes is: 20 ℃ of (g/ml) 0.90 of density, non-volatile component 51～53%, aqueous solvent, pH value 6.0～6.5, viscosity (mpa.s) 180～200, outward appearance are pale yellow to brown than thick liquid;
The organosilicon permeate agent is that polyethers and high alkyl, ammonia alkyl co-modified hydrophilic polymethyl siloxane and quaternary ammonium salt carbon are the mixture of tensio-active agent, the key technical indexes is: 20 ℃ of (g/ml) 0.96 of density, non-volatile component 25～27%, aqueous solvent, pH value 6.6～7.2, viscosity (mpa.s) 40～45, outward appearance are pale yellow to brown translucent liquid.
2, organosilicon and enzyme hair-protection and hair-removing composition composition are protected the method that the hair depilation is handled to animal skin
(1) organosilicon and enzyme are protected hair agent composition rotary drum and are rolled an enzyme guarantor hair pretreatment process
The industrial table salt that will add 3-6 part behind the 100 parts of drip-dry flowing water of skin base after immersion fully, the abundant degreasing rotated 20-60 minute, fully will just change 5-30 minute in 0.1～0.6 part in organosilicon inhibitor, 0.1～0.5 part of organosilyl surfactant, 0.1～0.5 part of organosilicon buffer reagent, proteinase-10 .1～0.3 part, 0.05～0.2 part of pancreatin, 0.8～1.5 part of adding rotary drum of fine rice bran successively behind the drip-dry flowing water, reversed 5-30 minute, note controlling to hair root only slightly loosening, do not have the hair of falling and ball top produces, go out drum and take horse and left standstill 20-60 minute; Need in the presence of 200-250 part water, to carry out rotary drum for sheepskin and roll the pre-treatment of enzyme guarantor hair;
(2) organosilicon and enzyme unhairing agent composition are coated with the enzyme depilation treatment process of banking up
With 0.2～0.6 part of organosilicon dispersion agent, 0.1～0.5 part of organosilyl surfactant, 0.1～0.4 part of organosilicon permeate agent, 1～2.8 part in water, 1～2.3 part in proteolytic enzyme, 0.5～1 part of pancreatin, fine rice bran add successively for 1～2.5 part mix in the reactor that has agitator after, take out weighing,, get near the required flesh noodles of every pig, ox-hide buttocks or sheepskin ridge line and be coated with enzyme composition weight divided by skin base number with this weight;
Be coated with enzyme and stack mode: flesh noodles interlocks, and two one group, 20-50 opens a pile
Envrionment temperature: 35-40 ℃
Ambient moisture: be not less than 80%
Bank up the time: 72-360 hour
The control of pH value: the pH value is reduced to turning in 6.5 o'clock by 7.5; The pH value is reduced to and was pushed away hair at 5.5 o'clock and scrape little Mao;
Routinely technology with above-mentioned animal skin advance drum washing, organosilicon enzyme process softening, fully directly under high pH value condition, carry out that the non-chromium metal hybrid of waterborne organic silicon polymkeric substance chrome-free tanning obtains wet-white leather (the white skin technology of sheet) or few chrome tanning system obtains wet blue (the blue skin technology of sheet) after the washing, the wet-white leather or the wet blue that obtain are plentiful, soft, substantially it is poor not have the position, whole skin grain is flat thin, the limit abdomen is loose side not, and pore-free enlarges, the hair perforation, bore little Mao, mashed face, loose side, enzyme shadow bad phenomenon.
The present invention has the following advantages:
1, Mao Kequan reclaims.
2, alkali sulfide free and lime are ruined the grey alkali pollution and the mashed hairless protein waste liquor contamination of hair, liming generation.
3, pigskin need not the machine creaming.
4, before obtaining to treat the blue skin of sheet or treating the white skin of sheet, need not to carry out alkali swelling and split power operation (as buttocks bottoming split, sheet alkali skin, sheet tannage etc.).
5, water saving, energy-conservation, and reduce workman's manipulation strength greatly.
6, comprehensive cost is low.The introducing of organosilicon high performance material, making conventional carbon is that the consumption of retanning, stuffing material reduces significantly, particularly conventional carbon is that the stuffing material can gradually reduce even cancel, and can improve resultant leather quality, makes finished leather obtain texture and flexibility lasting, folding as the silicon rubber.
Embodiment
Below by embodiment the present invention is specifically described; it is important to point out that the following example only is used for the present invention is further specified; can not be interpreted as limiting the scope of the invention, the person skilled in the art in this field can make some immaterial improvement and adjustment to the present invention according to the content of the invention described above.
Embodiment one, heavy leather pigskin are protected the hair depilation
1, rotary drum rolls enzyme and protects the hair pre-treatment
With immersion fully, fully treating after the degreasing lose hair or feathers one's old mother's pigskin 100kg in rotary drum with leaking fully drip-dry flowing water of door, add the 6kg industrial table salt and close a rotation 40 minutes, with leaking fully drip-dry flowing water of door, add organosilicon inhibitor 0.6kg, organosilyl surfactant 0.5kg, organosilicon buffer reagent 0.5kg, 3942 proteinase-10 .3kg, pancreatin 0.2kg, 85 μ m fine rice bran 1.5kg again in rotary drum, close Men Zhengzhuan 20 minutes, the counter-rotating 20 minutes, with leaking fully drip-dry flowing water of door, go out drum and take horse and left standstill 40 minutes.
More than the branch in no summer in winter is all carried out in operation at normal temperatures and pressures.
2, being coated with the enzyme depilation of banking up handles
Organosilicon dispersion agent 0.6kg, organosilyl surfactant 0.5kg, organosilicon permeate agent 0.4kg, water 2.8kg are added and have in the reaction vessel of stirring, and normal temperature and pressure stirred 10 minutes down; Join in the reaction vessel after 1398 proteolytic enzyme 2.3kg, pancreatin 1kg, three kinds of powder material of 50 microns fine rice bran 2.5kg are mixed in stainless steel vessel and stirred 10 minutes, blowing is weighed, and this weight is promptly got the weight that every required flesh noodles of buttocks part of pighide is coated with enzyme composition divided by skin base number.
Be coated with the enzyme mode of banking up: flesh noodles interlocks, and two one group, prevents water loss, 50 a piles.
Be coated with the enzyme envrionment temperature and be controlled at 39 ℃.
Be coated with the enzyme ambient moisture and be controlled at 80%.
Being coated with the enzyme time of banking up is 240 hours.
The control of pH value: the pH value was reduced to turning at 6.5 o'clock by 7.5; PH value=5.5 o'clock, institute's hairiness all can pull out gently, can push away hair by hand, scrape little Mao.
Advance the drum washing, the little Mao of the basic noresidue of skin base grain.Through the softening processing of organosilicon enzyme process rotary drum, fully (little Mao of residual about 2% takes off to the greatest extent after the washing, with water-washing away) carry out traditional soak the salt pickling, tanning or do not soak not pickling of salt directly the non-chromium metal hybrid of the waterborne organic silicon polymkeric substance chrome-free tanning under high pH value condition obtain wet-white leather (the white skin technology of sheet) or few chrome tanning system obtains wet blue (the blue skin technology of sheet), wet-white leather or wet blue that the two kinds of technologies in back obtain are plentiful, soft, whole grain is flat thin, the limit abdomen is loose side not, and finished leather does not have the hair perforation, bore little Mao, pore enlarges, mashed face, loose side, enzyme shadow quality instability, the bad phenomenon that safety coefficient is low.
Embodiment two, light leather pigskin are protected the hair depilation
1, rotary drum rolls enzyme and protects the hair pre-treatment
With immersion fully, fully treating after the degreasing lose hair or feathers light leather pigskin 100kg in rotary drum with leaking fully drip-dry flowing water of door, add the 5kg industrial table salt and close a rotation 40 minutes, with leaking fully drip-dry flowing water of door, add organosilicon inhibitor 0.5kg, organosilyl surfactant 0.4kg, organosilicon buffer reagent 0.4kg, 3942 proteinase-10 .2kg, pancreatin 0.1kg, 65 microns fine rice bran 1.3kg again in rotary drum, close Men Zhengzhuan 20 minutes, the counter-rotating 20 minutes, with leaking fully drip-dry flowing water of door, go out drum and take horse and left standstill 40 minutes.
More than the branch in no summer in winter is all carried out in operation at normal temperatures and pressures.
2, being coated with the enzyme depilation of banking up handles
Organosilicon dispersion agent 0.5kg, organosilyl surfactant 0.4kg, organosilicon permeate agent 0.3kg, water 2.6kg are added and have in the reaction vessel of stirring, and normal temperature and pressure stirred 10 minutes down; Join in the reaction vessel after 1398 proteolytic enzyme 2.0kg, pancreatin 0.8kg, three kinds of powder material of 60 microns fine rice bran 2.3kg are mixed in stainless steel vessel and stirred 10 minutes, blowing is weighed, and this weight is promptly got the weight that every required flesh noodles of buttocks part of pighide is coated with enzyme composition divided by skin base number.
Be coated with the enzyme mode of banking up: flesh noodles interlocks, and two one group, prevents water loss, 50 a piles.
Be coated with the enzyme envrionment temperature and be controlled at 37 ℃.
Be coated with the enzyme ambient moisture and be controlled at 80%.
Being coated with the enzyme time of banking up is 150 hours.
The control of pH value: the pH value was reduced to turning at 6.5 o'clock by 7.5; PH value=5.5 o'clock, institute's hairiness all can pull out gently, can push away hair by hand, scrape little Mao.
Advance the drum washing, the little Mao of the basic noresidue of skin base grain.Through the softening processing of organosilicon enzyme process rotary drum, fully (little Mao of residual about 2% takes off to the greatest extent after the washing, with water-washing away) carry out traditional soak the salt pickling, tanning or do not soak not pickling of salt directly the non-chromium metal hybrid of the waterborne organic silicon polymkeric substance chrome-free tanning under high pH value condition obtain wet-white leather (the white skin technology of sheet) or few chrome tanning system obtains wet blue (the blue skin technology of sheet), wet-white leather or wet blue that the two kinds of technologies in back obtain are plentiful, soft, whole grain is flat thin, the limit abdomen is loose side not, and finished leather does not have the hair perforation, bore little Mao, pore enlarges, mashed face, loose side, enzyme shadow quality instability, the bad phenomenon that safety coefficient is low.
Embodiment three, cattle hide are protected the hair depilation
1, rotary drum rolls enzyme and protects the hair pre-treatment
With immersion fully, fully treating after the degreasing lose hair or feathers cattle hide 100kg in rotary drum with leaking fully drip-dry flowing water of door, add the 4.5kg industrial table salt and close a rotation 40 minutes, with leaking fully drip-dry flowing water of door, add organosilicon inhibitor 0.4kg, organosilyl surfactant 0.3kg, organosilicon buffer reagent 0.4kg, 3942 proteinase-10 .2kg, pancreatin 0.1kg, 70 microns fine rice bran 1.2kg again in rotary drum, close Men Zhengzhuan 20 minutes, the counter-rotating 20 minutes, with leaking fully drip-dry flowing water of door, go out drum and take horse and left standstill 40 minutes.
More than the branch in no summer in winter is all carried out in operation at normal temperatures and pressures.
2, being coated with the enzyme depilation of banking up handles
Organosilicon dispersion agent 0.5kg, organosilyl surfactant 0.3kg, organosilicon permeate agent 0.3kg, water 2kg are added and have in the reaction vessel of stirring, and normal temperature and pressure stirred 10 minutes down; Join in the reaction vessel after 3942 proteolytic enzyme 2kg, pancreatin 0.6kg, three kinds of powder material of 55 microns fine rice bran 2kg are mixed in the Stainless Steel container and stirred 10 minutes, blowing is weighed, and this weight is promptly got the weight that every required flesh noodles of ox-hide buttocks is coated with enzyme composition divided by skin base number.
Be coated with the enzyme mode of banking up: flesh noodles interlocks, and two one group, prevents water loss, 30 a piles.
Be coated with the enzyme envrionment temperature and be controlled at 36 ℃.
Be coated with the enzyme ambient moisture and be controlled at 80%.
Being coated with the enzyme time of banking up is 96 hours.
The control of pH value: the pH value was reduced to turning at 6.5 o'clock by 7.5; PH value=5.5 o'clock, institute's hairiness all can pull out gently, can push away hair by hand, scrape little Mao.
Advance the drum washing, the little Mao of the basic noresidue of skin base grain.Through organosilicon enzyme process rotary drum softening handle, fully washing back (little Mao of residual about 2% takes off to the greatest extent, with water-washing away) carry out traditional soak the salt pickling, tanning or do not soak not pickling of salt directly the non-chromium metal hybrid of the waterborne organic silicon polymkeric substance chrome-free tanning under high pH value condition obtain wet-white leather (the white skin technology of sheet) or few chrome tanning system obtains wet blue (sheet indigo plant skin technology).Wet-white leather or wet blue that two kinds of technology obtains are plentiful, soft, and flat thin, the limit abdomen of whole grain is loose side not, and finished leather does not have the hair perforation, bores little Mao, pore enlarges, mashed face, loose side, enzyme shadow quality instability, bad phenomenon that safety coefficient is low.
Embodiment four, goatskin are protected the hair depilation
1, rotary drum rolls enzyme and protects the hair pre-treatment
With immersion fully, fully treating after the degreasing lose hair or feathers goatskin 100kg in rotary drum with leaking fully drip-dry flowing water of door, add 200kg water, add the 4kg industrial table salt and close a rotation 20 minutes, add organosilicon inhibitor 0.3kg, organosilyl surfactant 0.2kg, organosilicon buffer reagent 0.3kg, 166 proteinase-10 .15kg, pancreatin 0.08kg, 75 microns fine rice bran 1kg again in rotary drum, close Men Zhengzhuan 20 minutes, the counter-rotating 20 minutes, with leaking fully drip-dry flowing water of door, go out drum and take horse and left standstill 60 minutes.
More than the branch in no summer in winter is all carried out in operation at normal temperatures and pressures.
2, being coated with the enzyme depilation of banking up handles
Organosilicon dispersion agent 0.3kg, organosilyl surfactant 0.15kg, organosilicon permeate agent 0.2kg, water 1.5kg are added and have in the reaction vessel of stirring, and normal temperature and pressure stirred 10 minutes down; Join in the reaction vessel after 166 proteolytic enzyme 1.3kg, pancreatin 0.6kg, three kinds of powder material of 70 microns fine rice bran 1.6kg are mixed in stainless steel vessel and stirred 10 minutes, blowing is weighed, and this weight is promptly got the weight that every required flesh noodles of sheepskin buttocks is coated with enzyme composition divided by skin base number.
Be coated with the enzyme mode of banking up: flesh noodles interlocks, and two one group, prevents water loss, 20 a piles.
Be coated with the enzyme envrionment temperature and be controlled at 35 ℃.
Be coated with the enzyme ambient moisture and be controlled at 80%.
Being coated with the enzyme time of banking up is 84 hours.
The control of pH value: the pH value was reduced to turning at 6.5 o'clock by 7.5; PH value=5.5 o'clock, institute's hairiness all can pull out gently, can push away hair by hand, scrape little Mao.
Advance the drum washing, the little Mao of the basic noresidue of skin base grain.Through organosilicon enzyme process rotary drum softening handle, fully washing back (little Mao of residual about 1% takes off to the greatest extent, with water-washing away) carry out traditional soak the salt pickling, tanning or do not soak not pickling of salt directly the non-chromium metal hybrid of the waterborne organic silicon polymkeric substance chrome-free tanning under high pH value condition obtain wet-white leather (the white skin technology of sheet) or few chrome tanning system obtains wet blue (sheet indigo plant skin technology).Wet-white leather or wet blue that the two kinds of novel procesies in back obtain are plentiful, soft, and flat thin, the limit abdomen of whole grain is loose side not, and finished leather does not have the hair perforation, bores little Mao, pore enlarges, mashed face, loose side, enzyme shadow quality instability, bad phenomenon that safety coefficient is low.
Annotate: organosilicon inhibitor, organosilicon buffer reagent, organosilicon dispersion agent, organosilicon permeate agent, organosilyl surfactant are produced by sky, Fushan City, Guangdong Province occasion Fine Chemical Co., Ltd, and all the other materials are bought by market.
Claims (3)
1, organosilicon and enzyme hair-protection and hair-removing composition composition is characterized in that the recipe ingredient of said composition is by weight:
(1) rotary drum rolls enzyme and protects the hair pre-treatment and protect mao recipe ingredient of agent composition with organosilicon and enzyme and be:
The skin base is pressed 100 parts of rawhide restatements
Industrial table salt 3-6 part
Organosilicon inhibitor 0.1-0.6 part
Organosilyl surfactant 0.1-0.5 part
Organosilicon buffer reagent 0.1-0.5 part
Proteinase-10 .1-0.3 part
Pancreatin 0.05-0.2 part
Fine rice bran 0.8-1.5 part
Wherein, the organosilicon inhibitor is the hydrophilic polymethyl siloxane that polyethers and trimethyl-glycine alkyl are total to modification, and the key technical indexes is: 20 ℃ of (g/ml) 0.98 of density, non-volatile component 28～30%, aqueous solvent, pH value 6.0～6.5, viscosity (mpa.s) 35～45, outward appearance are the translucent liquid of canescence;
Organosilyl surfactant is the mixture of polyethers and sulphiting carboxylic alkyl co-modified hydrophilic polymethyl siloxane and organic alcohol amine, the key technical indexes is: 20 ℃ of (g/ml) 0.95 of density, non-volatile component 33～35%, aqueous solvent, pH value 7.0～7.6, viscosity (mpa.s) 100～120, outward appearance are that canescence is to the muddy thick shape liquid of oyster white;
The organosilicon buffer reagent is polyethers and phosphoric acid ester alkyl co-modified hydrophilic polymethyl siloxane, and the key technical indexes is: 20 ℃ of (g/ml) 0.92 of density, non-volatile component 46～49%, aqueous solvent, pH value 6.5～7.0, viscosity (mpa.s) 130～150, outward appearance are that light brown is than thick liquid;
The fine rice bran particle diameter is 50～85 microns a husk particle;
(2) being coated with the enzyme depilation of banking up handles and with organosilicon and enzyme unhairing agent composite formula component to be:
The skin base is pressed 100 parts of rawhide restatements
Organosilicon dispersion agent 0.2-0.6 part
Organosilyl surfactant 0.1-0.5 part
Organosilicon permeate agent 0.1-0.4 part
Water 1-2.8 part
Proteolytic enzyme 1-2.3 part
Pancreatin 0.5-1 part
Fine rice bran 1-2.5 part
Wherein, the organosilicon dispersion agent is the mixture of polyethers and ammonia alkyl co-modified hydrophilic polymethyl siloxane and vegetables oil phosphorylation sulphiting product, the key technical indexes is: 20 ℃ of (g/ml) 0.90 of density, non-volatile component 51～53%, aqueous solvent, pH value 6.0～6.5, viscosity (mpa.s) 180～200, outward appearance are pale yellow to brown than thick liquid;
The organosilicon permeate agent is that polyethers and high alkyl, ammonia alkyl co-modified hydrophilic polymethyl siloxane and quaternary ammonium salt carbon are the mixture of tensio-active agent, the key technical indexes is: 20 ℃ of (g/ml) 0.96 of density, non-volatile component 25～27%, aqueous solvent, pH value 6.6～7.2, viscosity (mpa.s) 40～45, outward appearance are pale yellow to brown translucent liquid.
2, organosilicon and enzyme hair-protection and hair-removing composition composition according to claim 1 is characterized in that proteolytic enzyme is any in 1398 proteolytic enzyme, 166 proteolytic enzyme, 3942 proteolytic enzyme, enzyme activity 50,000 units/gram.
3, organosilicon and enzyme hair-protection and hair-removing composition composition are protected the method that the hair depilation is handled to animal skin according to claim 1, it is characterized in that this method may further comprise the steps:
(1) organosilicon and enzyme are protected hair agent composition rotary drum and are rolled an enzyme guarantor hair pretreatment process
The industrial table salt that will add 3-6 part behind the 100 parts of drip-dry flowing water of skin base after immersion fully, the abundant degreasing rotated 20-60 minute, fully behind the drip-dry flowing water successively with just changeing 5-30 minute in 0.1～0.6 part in organosilicon inhibitor, 0.1～0.5 part of organosilyl surfactant, 0.1～0.5 part of organosilicon buffer reagent, proteinase-10 .1～0.3 part, 0.05～0.2 part of pancreatin, 0.8～1.5 part of adding rotary drum of fine rice bran, reversed 5-30 minute.Note controlling to hair root only slightly loosening, do not have the hair of falling and ball top produces, go out drum and take horse and left standstill 20-60 minute; Need in the presence of 200-250 part water, to carry out rotary drum for sheepskin and roll the pre-treatment of enzyme guarantor hair;
(2) organosilicon and enzyme unhairing agent composition are coated with the enzyme depilation treatment process of banking up
With 0.2～0.6 part of organosilicon dispersion agent, 0.1～0.5 part of organosilyl surfactant, 0.1～0.4 part of organosilicon permeate agent, 1～2.8 part in water, 1～2.3 part in proteolytic enzyme, 0.5～1 part of pancreatin, fine rice bran add successively for 1～2.5 part mix in the reactor that has agitator after, take out weighing,, promptly get near the required flesh noodles of every pig, ox-hide buttocks or sheepskin ridge line and be coated with enzyme composition weight divided by skin base number with this weight;
Be coated with enzyme and stack mode: flesh noodles interlocks, and two one group, 20-50 opens a pile;
Envrionment temperature: 35-40 ℃
Ambient moisture: be not less than 80%
Bank up the time: 72-360 hour
The control of pH value: the pH value is reduced to turning in 6.5 o'clock by 7.5; The pH value is reduced to and was pushed away hair at 5.5 o'clock and scrape little Mao;
Routinely technology with above-mentioned animal skin advance drum washing, organosilicon enzyme process softening, fully directly under high pH value condition, carry out that the non-chromium metal hybrid of waterborne organic silicon polymkeric substance chrome-free tanning obtains wet-white leather or few chrome tanning system obtains wet blue after the washing, the wet-white leather or the wet blue that obtain are plentiful, soft, substantially it is poor not have the position, whole skin grain is flat thin, the limit abdomen is loose side not, and pore-free enlarges, the hair perforation, bore little Mao, mashed face, loose side, enzyme shadow bad phenomenon.
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| CN102134618A (en) * | 2011-02-23 | 2011-07-27 | 四川大学 | Cow leather without sulfide residues and low-temperature enzyme unhairing preparation process thereof |
| CN101503742B (en) * | 2009-01-13 | 2012-09-05 | 海宁市富升裘革有限公司 | Environment friendly depilation method and lime alkali liquor recovery device |
| CN105441600A (en) * | 2015-11-28 | 2016-03-30 | 成都德善能科技有限公司 | Tanning method for free-chrome tanning agent in leather production |
| WO2018086250A1 (en) * | 2016-11-14 | 2018-05-17 | 陕西科技大学 | Poly-octavinyl polyhedral oligomeric silsesquioxane-acrylic acid nano composite auxiliary agent for leather and preparation method therefor |
| CN114891932A (en) * | 2022-05-09 | 2022-08-12 | 四川大学 | Enzyme unhairing method adopting Cu (II) ion composite inhibitor system |
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2006
- 2006-09-11 CN CNB2006100218149A patent/CN100497659C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101503742B (en) * | 2009-01-13 | 2012-09-05 | 海宁市富升裘革有限公司 | Environment friendly depilation method and lime alkali liquor recovery device |
| CN102134618A (en) * | 2011-02-23 | 2011-07-27 | 四川大学 | Cow leather without sulfide residues and low-temperature enzyme unhairing preparation process thereof |
| CN102134618B (en) * | 2011-02-23 | 2012-02-08 | 四川大学 | Cow leather without sulfide residues and low-temperature enzyme unhairing preparation process thereof |
| CN105441600A (en) * | 2015-11-28 | 2016-03-30 | 成都德善能科技有限公司 | Tanning method for free-chrome tanning agent in leather production |
| CN105441600B (en) * | 2015-11-28 | 2017-10-27 | 成都德善能科技有限公司 | Chrome-free tanning agent process for tanning in a kind of leather production |
| WO2018086250A1 (en) * | 2016-11-14 | 2018-05-17 | 陕西科技大学 | Poly-octavinyl polyhedral oligomeric silsesquioxane-acrylic acid nano composite auxiliary agent for leather and preparation method therefor |
| CN114891932A (en) * | 2022-05-09 | 2022-08-12 | 四川大学 | Enzyme unhairing method adopting Cu (II) ion composite inhibitor system |
| CN114891932B (en) * | 2022-05-09 | 2023-03-03 | 四川大学 | Enzyme unhairing method adopting Cu (II) ion composite inhibitor system |
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Effective date of registration: 20151222 Address after: 363000 Nanjing hi tech Industrial Park, Nanjing County, Fujian, Zhangzhou Patentee after: HERUI (ZHANGZHOU) AUXILIARY CO.,LTD. Address before: Wuhou District Shuangnan road Chengdu City, Sichuan province 610041 1 1 unit 2 Building No. 3 Patentee before: Yang Qingwen |
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