CN103866054A - Short-process low-consumption fur tanning method - Google Patents
Short-process low-consumption fur tanning method Download PDFInfo
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Abstract
The invention discloses a fur tanning method. The problems that the process is complicated, the water consumption is high, the consumption of chemical materials is high, the cost is high, the environmental pollution on processing wastewater is severe and a fur quilt is not loose and flexible enough and is not clean enough in the traditional fur tanning method are solved. The method sequentially comprises the process flows: pre-soaking, main soaking, fleshing, degreasing bulk fibers through a combined enzyme preparation, washing and tanning, wherein in the soaking process, deep soaking is performed by adding an enzyme-free soaking aid; the bulk fibers are degreased by using the combined enzyme preparation after fleshing; the tanning process comprises the steps: regulating the pH value of the liquid by adopting an unexpansive acid and strong acid and weak base salts which have weak acidity and slight tanning properties in a combined mode, pre-tanning by using a fatty aldehyde tanning agent, and chrome tanning by using a chrome tanning agent. According to the method, the tanning period can be shortened, the amount of chrome tanning agents is saved, use of neutral salts in the tanning process is avoided, the tanned fur is full, soft and elastic, and various indexes can reach the industrial standard requirements.
Description
Technical field
The present invention relates to fur process field, specifically the low consumed fur tanning method of a kind of short flow process.
Background technology
The idiographic flow of traditional fur tanning method is as follows: pre-immersion → main immersion → fleshing → degreasing → washing → enzyme bating → pickling → tanning, exists following subject matter:
1) have 8 operations at least, operation is loaded down with trivial details; In approximately 4 days cycles of whole technique, the production cycle is long; Account for current assets large.
2) water consumption is large.
Because fur has abundant fleece, in order to prevent adding hair fibre entanglement in man-hour or bonding, the water consumption of pre-immersion, main immersion, degreasing, washing, enzyme bating, pickling and tanning operation is all 15～20 times of cortex amount, take processing 100KG raw material skin as benchmark, water consumption is as follows: (100 × 15～20) × 6～7 water operation=9000～14000KG.
3) chemical materials consumption is large, and cost is high, and processing waste water is big for environment pollution.
1. in order to protect, positive fur product dermatotome softness, plentiful, extensibility are large, to go out sanction rate high, and do not fall hair, adopt that acidicenzym is softening, pickling in technique, with loose dermatotome collegen filament.
2. acidicenzym is softening need to add a large amount of acid materials with pickling, such as sulfuric acid, formic acid, acetic acid, citric acid, lactic acid etc., under acidic conditions, can there is violent expansion (being commonly called as sour swollen, acid plumping) in dermatotome, and dermatotome can not carry out next step tanning under swelling state, upper need to soften at acidicenzym, add a large amount of Industrial Salts (more than 60g/L or more than 6 degree Beaume) to suppress dermatotome in pickling and this three process of chrome tanning system to expand under acidic conditions so produce.Take processing 100KG raw material skin as benchmark, Industrial Salt consumption is as follows: (100 × 15～20) × 2 × 60=180～240kg.
3. in the softening middle and high concentration Industrial Salt possibility of acidicenzym inhibitory enzyme preparation activity, so can make zymin consumption strengthen, soften and pickling time lengthening.
4. a large amount of Industrial Salts decline chrome tanning agent specific absorption and tanning effect, cause chrome tanning agent consumption to increase, and have increased chromium content and neutral salt content in waste water simultaneously, and cost increases, and also environmental pollution increases.
4) fur fleece is loose not flexibly, clean not.Because fur is softening through acidicenzym, after pickling, significant quantities of fat, fibre substrate albumen enter in waste liquid, because dermatotome is acidic conditions, therefore can not wash with clear water (seriously acid is swollen with clear water washing dermatotome), be not easy to remove in time the fat, the fibre substrate protein degradation products that enter in waste water, thereby the fur fleece of tanning is loose not flexibly, clean not.If wash after, pickling softening at acidicenzym, just must in clear water, add Industrial Salt more than 60g/L, suppress dermatotome acid plumping, and this strengthens consumption and environmental pollution to Industrial Salt.
5) while selecting zymin, have certain blindness, not strong to different components targeting in dermatotome, produce difficult control, easily cause softening not in place or softening excessively, pelage quality is unstable.
Summary of the invention
Technical problem to be solved by this invention is to overcome above-mentioned prior art to have defect, a kind of short flow process, low consumed fur tanning method are provided, it is long that it will make fur manufacturing industry thoroughly break away from the cycle, the water yield, the backward situation that the consumption of chemical materials amount is large, big for environment pollution.
For this reason, the present invention adopts following technical scheme: the low consumed fur tanning method of a kind of short flow process, and its technical process adopting is followed successively by pre-immersion, main immersion, fleshing, combination zymin degreasing loose fiber, washing and tanning;
In pre-soaking process, add the not efficient Soaking TRUPOWET SC containing enzyme to process; In main soaking process, add not efficient Soaking TRUPOWET SC and the high S of Bath containing enzyme to process;
After fleshing, use the combination zymin degreasing loose fiber with certain targeting, the component that described combination zymin comprises following concentration: 0.2～0.5g/L fur lipase MD (mainly for intracutaneous fat), 0.2～0.6g/L soaking enzyme Ba Xinmei S20 (mainly for intracutaneous stromatin), 0.3～0.6g/L neutral enzymatic Ba Xinmei B10 (mainly for intracutaneous stromatin), 0.1～0.6g/L pancreatin Ba Xinmei C10 is (mainly for intracutaneous stromatin, particularly proteoglycan), described combination zymin according to different zymins to albumen in animal skin, proteoglycan and animal adipose tissue stand-in vigor size combine, targeting with control combination zymin to different tissues in animal skin, without neutral salt and need not acid in the situation that, complete degreasing and loose dermatotome collegen filament simultaneously,
Described tanning operation adopts the high S of auxiliary pickling agent Bath and slightly acidic and has the strong acid weak base salt tschermigite associating regulator solution pH of slight flexibility, then uses fatty aldehyde tanning agent pretan, then carries out chrome tanning with chrome tanning agent.The present invention first uses fatty aldehyde tanning agent pretan, makes tanning operation not need to add neutral salt, and has improved the tanning effect of chrome tanning agent, has saved the consumption of chrome tanning agent.
The present invention is shorter and less to chemical materials consumption rate, environmental pollution is smaller fur tanning method of a kind of process-cycle.
As the further of technique scheme improved and supplemented, the present invention takes following technical measures:
In pre-soaking process, the concentration of Soaking is preferably controlled at 0.05～0.15g/L.
In main soaking process, the concentration of Soaking is preferably controlled at 0.1～0.3g/L, and the concentration of the high S of Bath is preferably controlled at 0.3～0.6g/L.
In tanning operation, the concentration of the high S of Bath is preferably controlled at 0.4～0.8g/L, and the concentration of tschermigite is preferably controlled at 5～15g/L, and the concentration of fatty aldehyde tanning agent is preferably controlled at 4～8g/L, and the concentration of chrome tanning agent is preferably controlled at 6～15g/L.
Described fatty aldehyde tanning agent preferably adopts NOVALTAN PF, can certainly adopt other similar fatty aldehyde tanning agents.
Described chrome tanning agent preferably adopts Chromitan B (BASF AG), or Chromosal B (Lanxess Corporation), or HLS-C (XiongDi Science Co., Ltd), can certainly adopt other similar chrome tanning agents.
In pre-immersion and main soaking process, the liquor ratio of employing is preferably 8～20, and temperature is preferably 20-25 ℃.
In combination zymin degreasing loose fiber operation, the liquor ratio of employing is preferably 6～20, and temperature is preferably 30-32 ℃.
In tanning operation, the liquor ratio of employing is preferably 6～20, and temperature is preferably 30-31 ℃, and while adding chrome tanning agent, pH value is preferably controlled at below 3.5.
The present invention has following beneficial effect: under auxiliary with the Soaking that does not contain enzyme in preparation workshop section, raw material skin is carried out to degree of depth immersion, after after fleshing, by combination zymin, fur is carried out to synchronous degreasing and loose hide fiber, replace traditional degreasing, enzyme bating and pickling procedure, thereby workshop section has reduced by two operations in preparation, shorten the production cycle.After loose fiber He before tanning, can wash at goods with clear water, remove the dirty material on fleece, in tanning operation, first adopt auxiliary pickling agent and the slightly acidic salt regulator solution pH with slight flexibility, then use fatty aldehyde tanning agent pretan, chrome tanning more afterwards, can shorten the tanning cycle more than 25%, saves chrome tanning agent consumption more than 20%, neutral salt and sour use are avoided, the fur fleece of tanning is loose flexible, and dermatotome is plentiful, soft, flexible, and indices all can reach industry standard requirement.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is described in further detail, but described embodiment does not limit the scope of the invention.
The present invention is a kind of short flow process, low consumed fur tanning method, and its step is as follows:
1) immersion is in advance carried out in paddle-tumble or rotary drum, liquor ratio 8～20, and 20～25 ℃ of temperature, add not containing the efficient Soaking TRUPOWET of enzyme SC (product of Tang Pule company) 0.05～0.15g/L.Turn 30min, stop 30min, turn 10min, stop 30min, turn 20min.Jing Pao, altogether 3-6h.
2) main immersion is carried out in paddle-tumble or rotary drum, liquor ratio 8～20, and 20～25 ℃ of temperature, add the high S 0.3～0.6g/L of Bath, not containing the efficient Soaking TRUPOWET of enzyme SC 0.1～0.3g/L, rotate 30min, and later every 2h turns 10min, totally 4.5～6h.
3) after fleshing, be used in Ba Xinmei S20, the Ba Xinmei C10 of BASF AG, the Ba Xinmei B10 of BASF AG that the zymin acting under neutrallty condition comprises BASF AG, the fur lipase MD(NOWOLASE MD of Sichuan Dowell Technology Co., Ltd.), carry out enzymic activity combination, fur is carried out to synchronous degreasing and loose hide fiber.Its method is according to different zymins, albumen, proteoglycan, animal adipose tissue stand-in vigor size in animal skin to be combined, targeting with control combination zymin to different tissues in animal skin, need not acid and without neutral salt in the situation that, complete degreasing and loose dermatotome collegen filament simultaneously.
Synchronous degreasing and loose hide fiber method are carried out in paddle-tumble or rotary drum, liquor ratio 6～20,30 ℃～32 ℃ of temperature, grease-removing agent 1～2g/L, soda ash 0.3～0.6g/L, fur lipase MD 0.2～0.5g/L(is mainly for intracutaneous fat), soaking enzyme Ba Xinmei S20 0.2～0.6g/L(is mainly for intracutaneous stromatin), neutral enzymatic Ba Xinmei B10 0.3～0.6g/L(is mainly for intracutaneous stromatin), BASF pancreatin Ba Xinmei C10 0.1～0.6g/L(is mainly for intracutaneous stromatin, particularly proteoglycan); Rotate 30min, daytime, every 2h turned 10min, totally 7～11h, and control water, with normal-temperature water washing 10～20min.
4) tanning process adopts the high S of auxiliary pickling agent Bath and slightly acidic and has the strong acid weak base salt tschermigite associating regulator solution pH value of slight flexibility, after the pretan of aldehydes tanning agent, carry out chrome tanning, make tanning process not need to add neutral salt, and improve the tanning effect of chrome tanning agent, save chrome tanning agent.
(1) process for tanning carries out in paddle-tumble or rotary drum, liquor ratio 6～20,30～31 ℃ of temperature, the high S 0.4～0.8g/L of Bath, tschermigite 5～15g/L, fatty aldehyde tanning agent 4～8g/L, rotate 30min, pH value is controlled at below 3.5, adds chrome tanning agent 6～15g/L, rotates 30min, later every 2h rotates 10min, totally 6～10h.
(2) carry alkali, in tanning solution, carry out, sodium bicarbonate 1.0～2.5g/L, with warm water dissolving, divides and adds for four times, and the 1h of being at every turn separated by adds rear rotation 10min at every turn.Until owse pH value >=3.8, temperature raising to 32～38 ℃, later every 2h turns 10min, totally 8～12h.
(3) according to common process take that horse leaves standstill, washing, stuffing, dry, arrange.
embodiment 1
Aforesaid method is applied in the process for tanning of domestic rabbit, chooses size, thickness, old tender salted basically identical rabbit, tissue is produced and is criticized, and weighs, and as following operation materials, water consumption foundation, concrete steps are as follows:
(1) immersion in advance
Liquor ratio 8,25 ℃ of temperature, add not containing the enzyme agent TRUPOWET SC 0.1g/L that efficiently soaks, and rotate 30min, stop 30min, rotate 10min, stop 30min, turn 20min.4h altogether.
(2) main immersion
Liquor ratio 8,25 ℃ of temperature, add not containing enzyme immersion agent TRUPOWET SC 0.3g/L, and the high S 0.5g/L of Bath, rotates 30min, and every 2h turns 10min.Totally 4.5～6h.
(3) take off according to a conventional method in, fleshing
(4) degreasing, loose fiber
Liquor ratio 6,31 ℃ of temperature, grease-removing agent 2g/L, soda ash 0.5g/L, fur lipase MD 0.2g/L, soaking enzyme S20 0.2g/L, neutral enzymatic Ba Xinmei B10 0.5g/L, pancreatin Ba Xinmei C10 0.6g/L.Rotate 30min, daytime, every 2h turned 10min, 9h altogether, control water.
(5) washing
Liquor ratio 8, normal-temperature water, washing 20min, control water, water dumping.
(6) chrome tanning
Liquor ratio 8,30～31 ℃ of temperature, the high S 0.4g/L of Bath, tschermigite 5g/L, alkanoic PF 4g/L, rotates 30min, and pH value is controlled at below 3.5, adds chrome tanning agent 6g/L.Rotate 30min, later every 2h rotates 10min, altogether 6h.
(7) carry alkali
In tanning solution, carry out.Sodium bicarbonate 1.5g/L, with the warm water dissolving of 10 times, divides and adds for four times, and the 1h of being at every turn separated by adds rear rotation 10min at every turn, until owse pH >=3.8 lift temperature to 35～38 ℃, later every 2h turns 10min.Totally 8～12h.
(8) according to common process take that horse leaves standstill, washing, stuffing, dry, arrange.
embodiment 2
Aforesaid method is applied in the process for tanning of beaver rabbit skin, chooses size, thickness, old tender basically identical salted beaver rabbit skin, tissue is produced and is criticized, and weighs, and as following operation materials, water consumption foundation, concrete steps are as follows:
(1) immersion in advance
Liquor ratio 8,25 ℃ of temperature, add not containing the enzyme agent TRUPOWET SC 0.15g/L that efficiently soaks, and rotate 30min, stop 30min, rotate 10min, stop 30min, turn 20min.4h altogether.
(2) main immersion
Liquor ratio 8,25 ℃ of temperature, add not containing enzyme immersion agent TRUPOWET SC 0.2g/L, and the high S 0.3g/L of Bath, rotates 30min, and every 2h turns 10min.6h altogether.
(3) take off according to a conventional method in, fleshing
(4) degreasing, loose fiber
Liquor ratio 20,32 ℃ of temperature, grease-removing agent 2g/L, soda ash 0.5g/L, fur lipase MD 0.5g/L, soaking enzyme auxiliary agent S20 0.6g/L, neutral enzymatic Ba Xinmei B10 0.6g/L, BASF pancreatin Ba Xinmei C10 0.4g/L.Rotate 30min, daytime, every 2h turned 10min, 8h altogether, control water.
(5) washing
Liquor ratio 8, normal-temperature water, washing 20min, control water, water dumping.
(6) chrome tanning
Liquor ratio 8,30～31 ℃ of temperature, the high S 0.8g/L of Bath, tschermigite 15g/L, alkanoic PF 8g/L, rotates 30min, and pH value is controlled at below 3.5, adds chrome tanning agent 15g/L.Rotate 30min, later every 2h rotates 10min, altogether 6h.
(7) carry alkali
In tanning solution, carry out.The about 1.5g/L of sodium bicarbonate, with the warm water dissolving of 10 times, divides and adds for four times, and the 1h of being at every turn separated by adds rear rotation 10min at every turn, until owse pH >=3.8 lift temperature to 35～38 ℃, later every 2h turns 10min.Totally 8～12h.
(8) according to common process take that horse leaves standstill, washing, stuffing, dry, arrange.
embodiment 3
Aforesaid method is applied in the process for tanning of pearl lamb skin, chooses size, thickness, basically identical salted pearl lamb skin, tissue is produced batch, weighs, and as following operation materials, water consumption foundation, concrete steps are as follows:
(1) immersion in advance
Liquor ratio 8,25 ℃ of temperature, add not containing the enzyme agent TRUPOWET SC 0.05g/L that efficiently soaks, and rotate 30min, stop 30min, rotate 10min, stop 30min, turn 20min.4h altogether.
(2) main immersion
Liquor ratio 8,25 ℃ of temperature, add not containing enzyme immersion agent TRUPOWET SC 0.1g/L, and the high S 0.6g/L of Bath, rotates 30min, and every 2h turns 10min.About 5h altogether.
(3) fleshing according to a conventional method,
(4) degreasing, loose fiber
Liquor ratio 12,30 ℃ of temperature, grease-removing agent 2g/L, soda ash 0.5g/L, fur lipase MD 0.3g/L, soaking enzyme S20 0.4g/L, neutral enzymatic Ba Xinmei B10 0.3g/L, BASF pancreatin Ba Xinmei C10 0.1g/L.Rotate 30min, daytime, every 2h turned 10min, 7h altogether, control water.
(5) washing
Liquor ratio 8, normal-temperature water, washing 20min, control water, water dumping.
(6) chrome tanning
Liquor ratio 8,30～31 ℃ of temperature, the high S 0.5g/L of Bath, tschermigite 8g/L, alkanoic PF 6g/L, rotates 30min, and pH value is controlled at below 3.5, adds chrome tanning agent 8g/L.Rotate 30min, later every 2h rotates 10min, altogether 6h.
(7) carry alkali
In tanning solution, carry out.Sodium bicarbonate 1.5g/L, with the warm water dissolving of 10 times, divides and adds for four times, and the 1h of being at every turn separated by adds rear rotation 10min at every turn, until owse pH >=3.8 lift temperature to 35 ℃, later every 2h turns 10min.Totally 8～12h.
(8) according to common process take that horse leaves standstill, washing, stuffing, dry, arrange.
Claims (9)
1. the low consumed fur tanning method of short flow process, its technical process adopting is followed successively by pre-immersion, main immersion, fleshing, combination zymin degreasing loose fiber, washing and tanning;
In pre-soaking process, do not add and process containing the efficient Soaking TRUPOWET of enzyme SC; In main soaking process, do not add and process containing enzyme efficient Soaking TRUPOWET SC and the high S of Bath;
After fleshing, use combination zymin degreasing loose fiber, the component that described combination zymin comprises following concentration: 0.2～0.5g/L fur lipase MD, 0.2～0.6g/L soaking enzyme Ba Xinmei S20, 0.3～0.6g/L neutral enzymatic Ba Xinmei B10, 0.1～0.6g/L pancreatin Ba Xinmei C10, described combination zymin according to different zymins to albumen in animal skin, proteoglycan and animal adipose tissue stand-in vigor size combine, targeting with control combination zymin to different tissues in animal skin, without neutral salt and need not acid in the situation that, complete degreasing and loose dermatotome collegen filament simultaneously,
Described tanning operation adopts the high S of auxiliary pickling agent Bath and slightly acidic and has the strong acid weak base salt tschermigite associating regulator solution pH of slight flexibility, then uses fatty aldehyde tanning agent pretan, then carries out chrome tanning with chrome tanning agent.
2. fur tanning method according to claim 1, is characterized in that, in pre-soaking process, the concentration of Soaking is controlled at 0.05～0.15g/L.
3. fur tanning method according to claim 1 and 2, is characterized in that, in main soaking process, the concentration of Soaking is controlled at 0.1～0.3g/L, and the concentration of the high S of Bath is controlled at 0.3～0.6g/L.
4. fur tanning method according to claim 1 and 2, is characterized in that, in tanning operation, the concentration of the high S of Bath is controlled at 0.4～0.8g/L, the concentration of tschermigite is controlled at 5～15g/L, and the concentration of fatty aldehyde tanning agent is controlled at 4～8g/L, and the concentration of chrome tanning agent is controlled at 6～15g/L.
5. fur tanning method according to claim 4, is characterized in that, described fatty aldehyde tanning agent adopts NOVALTAN PF.
6. fur tanning method according to claim 4, is characterized in that, described chrome tanning agent adopts Chromitan B, or Chromosal B, or HLS-C.
7. fur tanning method according to claim 1, is characterized in that, in pre-immersion and main soaking process, the liquor ratio of employing is 8～20, and temperature is 20～25 ℃.
8. fur tanning method according to claim 1, is characterized in that, in combination zymin degreasing loose fiber operation, the liquor ratio of employing is 6～20, and temperature is 30～32 ℃.
9. fur tanning method according to claim 1, is characterized in that, in tanning operation, the liquor ratio of employing is 6～20, and temperature is 30-31 ℃, and pH value is controlled at and below 3.5, adds chrome tanning agent.
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Cited By (5)
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| CN106222324A (en) * | 2016-08-12 | 2016-12-14 | 桐乡市鑫诺皮草有限公司 | A kind of fur Chrome-free is without aldehyde process for tanning |
| CN106282433A (en) * | 2016-08-12 | 2017-01-04 | 桐乡市鑫诺皮草有限公司 | A kind of sheep skin process for tanning |
| CN107326124A (en) * | 2017-07-24 | 2017-11-07 | 北京泛博清洁技术研究院有限公司 | A kind of fur degreasing complex enzyme formulation and preparation method thereof |
| CN113249532A (en) * | 2021-04-26 | 2021-08-13 | 桐乡市鑫诺皮草有限公司 | Clean tanning method for fox fur |
| CN114277202A (en) * | 2021-11-12 | 2022-04-05 | 宁夏西部皮草有限公司 | Production and processing technology of high-density shorn sheepskin |
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| CN103266187A (en) * | 2013-06-17 | 2013-08-28 | 焦作隆丰皮草企业有限公司 | Shorn sheepskin tanning method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106222324A (en) * | 2016-08-12 | 2016-12-14 | 桐乡市鑫诺皮草有限公司 | A kind of fur Chrome-free is without aldehyde process for tanning |
| CN106282433A (en) * | 2016-08-12 | 2017-01-04 | 桐乡市鑫诺皮草有限公司 | A kind of sheep skin process for tanning |
| CN107326124A (en) * | 2017-07-24 | 2017-11-07 | 北京泛博清洁技术研究院有限公司 | A kind of fur degreasing complex enzyme formulation and preparation method thereof |
| CN113249532A (en) * | 2021-04-26 | 2021-08-13 | 桐乡市鑫诺皮草有限公司 | Clean tanning method for fox fur |
| CN114277202A (en) * | 2021-11-12 | 2022-04-05 | 宁夏西部皮草有限公司 | Production and processing technology of high-density shorn sheepskin |
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| CN103866054B (en) | 2015-11-25 |
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