CN102534057B - Method for tanning Tan sheep skin with nano softening enzyme - Google Patents
Method for tanning Tan sheep skin with nano softening enzyme Download PDFInfo
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- CN102534057B CN102534057B CN 201210011608 CN201210011608A CN102534057B CN 102534057 B CN102534057 B CN 102534057B CN 201210011608 CN201210011608 CN 201210011608 CN 201210011608 A CN201210011608 A CN 201210011608A CN 102534057 B CN102534057 B CN 102534057B
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Abstract
The invention relates to a method for tanning Tan sheep skin with a nano softening enzyme, which comprises the following steps: pickling; dampening; adding 5-8% of nano softening enzyme into a rotating drum; after the rotating drum is rotated for 4-5 hours at ordinary temperature, heating to 40-50 DEG C, continuing rotating the rotating drum for 4-6 hours, and adding 0.5-1% of nano softening enzyme to regulate the pH value to 2.5; rinsing; washing out loose color; and washing with water. Under the actions of the nano softening enzyme and acidic condition, elastic fibers and excess colloids in the skin can be effectively dissolved and removed; and since the action of the nano softening enzyme is mild, the invention can ensure the low hair slipping tendency and fullness of the Tan sheep skin. In addition, no chromium or aluminum salt is used, thereby relieving the environmental pollution, reducing the control and routine maintenance cost for waste water and lowering the production cost.
Description
Technical field:
The present invention relates to the animal fur processing technique field, particularly a kind of method that adopts nanometer macerating enzyme tanning sheep known for its fine thick wool skin.
Background technology:
Existing sheep known for its fine thick wool skin process for tanning mainly contains following several: chromic tanning, aluminum tannage.The shortcoming that chromic tanning exists is that the skin rate is little, dermatotome is thicker, produce mao phenomenon, chroming waste liquor contaminate environment; The shortcoming that aluminum tannage exists is that neutral salt contaminate environment, the aluminium salt in waste liquid is combined the insecure fur that simultaneously damages with collegen filament.
Summary of the invention:
The object of the present invention is to provide a kind of can environmental contamination reduction, improve the method for the employing nanometer macerating enzyme tanning sheep known for its fine thick wool skin of the sheep known for its fine thick wool cortex amount that tanning goes out.
A kind of method that adopts nanometer macerating enzyme tanning sheep known for its fine thick wool skin comprises the following steps:
(1) pickling: the sulfuric acid that the formic acid that is 2g/L～3g/L by concentration, concentration are 1g/L according to predetermined than row proportioning, carry out the sheep known for its fine thick wool skin after cleaning is carried out to pickling after and entirely tan;
(2) moisture regain: add the sheep known for its fine thick wool skin moisture regain of clear water to the acquisition of entirely tanning that temperature is 35～40 ℃ in rotating cylinder after, to the nanometer macerating enzyme that adds 5%～8% in rotating cylinder, rotating cylinder rotated after 4～5 hours at normal temperatures, be warming up to 40～50 ℃, be rotated further rotating cylinder 4～6 hours, add 0.5%～1% nanometer macerating enzyme to regulate pH value to 2.5, rotating cylinder is stopped operating;
(3) rinsing: in rotating cylinder, add 1%～2%H
3o purificant and 45～55 ℃ of water of 110%～170%, be rotated further rotating cylinder 30～50 minutes, changes H
3after the O purificant, with 35～45 ℃ of water washings of 150%～200%, after 15～25 minutes, discharge water;
(4) wash loose colour: again to the water of 40～55 ℃ that adds 100%～150% in rotating cylinder, again 10%～20% ethoxylized fatty alcohol is added in rotating cylinder, rotate rotating cylinder after 10～20 minutes, guarantee that in rotating cylinder, temperature reaches 45～60 ℃, be rotated further rotating cylinder and discharge water after 1.5～3 hours;
(5) washing: to adding again organic chrome-free tanning agent of 3%～5% and 80%～100% normal-temperature water in rotating cylinder, rotate 2.5～4 hours, add 1% wetting agent, rotate 30～50 minutes, then 1.5%～2% trisodium phosphate is opened by the aquation of 5.5 times, divide and add in rotating cylinder for 4 times, regulate pH to 3.5, be rotated further rotating cylinder 40～110 minutes, normal-temperature water with 350% is cleaned 10～15 minutes, after reaching requirement, discharge water, add again 110%～170% normal-temperature water, 1% ammoniacal liquor, rotate 40～60 minutes, normal-temperature water with 400% is cleaned 15～25 minutes, then after the sheep known for its fine thick wool skin after cleaning being carried out to water dumping, make temperature in rotating cylinder remain on 55 ℃～65 ℃ rotations 20 minutes, add again 85% formic acid 1g/L, see that look rotates 90 minutes, and be 3.5～3.8 o'clock skins of washing by water out recording the pH value.
Utilize the sheep known for its fine thick wool skin of the method production of employing nanometer macerating enzyme tanning sheep known for its fine thick wool skin provided by the invention, due under nanometer macerating enzyme and acidic conditions effect, can effectively dissolve and remove spandex fiber and unnecessary colloid in dermatotome, because the effect of nanometer macerating enzyme relaxes, can guarantee that the sheep known for its fine thick wool skin is difficult for falling hair and dermatotome fullness ratio.In addition, do not adopt chromium, aluminium salt, but so environmental contamination reduction, reduce waste water treatment routine maintenance expense, reduced production cost.
The accompanying drawing explanation:
Fig. 1 is the method flow diagram of the employing nanometer macerating enzyme tanning sheep known for its fine thick wool skin of a better embodiment.
In figure: the method steps S300～S304 that adopts nanometer macerating enzyme tanning sheep known for its fine thick wool skin
Embodiment:
Referring to Fig. 1, adopt the method for nanometer macerating enzyme tanning sheep known for its fine thick wool skin, comprise the following steps:
Step S300, pickling: the sulfuric acid that the formic acid that is 2g/L～3g/L by concentration, concentration are 1g/L according to predetermined than row proportioning, carry out the sheep known for its fine thick wool skin after cleaning is carried out to pickling after and entirely tan.
Step S301, moisture regain: add the sheep known for its fine thick wool skin moisture regain of clear water to the acquisition of entirely tanning that temperature is 35～40 ℃ in rotating cylinder after, to the nanometer macerating enzyme that adds 5%～8% in rotating cylinder, rotating cylinder rotated after 4～5 hours at normal temperatures, be warming up to 40～50 ℃, be rotated further rotating cylinder 4～6 hours, add 0.5%～1% nanometer macerating enzyme adjusting pH value to 2.5, rotating cylinder is stopped operating.
Step S302, rinsing: in rotating cylinder, add 1%～2%H
3o purificant and 45～55 ℃ of water (water is for sheep known for its fine thick wool skin dry weight) of 110%～170%, be rotated further rotating cylinder 30～50 minutes, changes H
3after the O purificant, 35～45 ℃ of water with 150%～200% (water is for sheep known for its fine thick wool skin dry weight) are washed after 15～25 minutes and are discharged water.
Step S303, wash loose colour: again to the water of 40～55 ℃ (water is for sheep known for its fine thick wool skin dry weight) that adds 100%～150% in rotating cylinder, again 10%～20% ethoxylized fatty alcohol is added in rotating cylinder, rotate rotating cylinder after 10～20 minutes, guarantee that in rotating cylinder, temperature reaches 45～60 ℃, be rotated further rotating cylinder and discharge water after 1.5～3 hours.
Step S304, washing: to adding again organic chrome-free tanning agent of 3%～5% and 80%～100% normal-temperature water (water is for sheep known for its fine thick wool skin dry weight) in rotating cylinder, rotate 2.5～4 hours, add 1% wetting agent, rotate 30～50 minutes, then 1.5%～2% trisodium phosphate is opened by the aquation of 5.5 times, divide and add in rotating cylinder for 4 times, regulate pH to 3.5 left and right, be rotated further rotating cylinder 40～110 minutes, normal-temperature water with 350% is cleaned 10～15 minutes, after reaching requirement, discharge water, add again 110%～170% normal-temperature water (water is for sheep known for its fine thick wool skin dry weight), 1% ammoniacal liquor, rotate 40～60 minutes, normal-temperature water with 400% is cleaned 15～25 minutes, then after the sheep known for its fine thick wool skin after cleaning being carried out to water dumping, make temperature in rotating cylinder remain on 55 ℃～65 ℃ rotations 20 minutes, add again 85% formic acid 1g/L, see that look rotates 90 minutes, and be 3.5～3.8 o'clock skins of washing by water out recording the pH value.
Utilize the sheep known for its fine thick wool skin of the method production of employing nanometer macerating enzyme tanning sheep known for its fine thick wool skin provided by the invention, due under nanometer macerating enzyme and acidic conditions effect, can effectively dissolve and remove spandex fiber and unnecessary colloid in dermatotome, because the effect of nanometer macerating enzyme relaxes, can guarantee that the sheep known for its fine thick wool skin is difficult for falling hair and dermatotome fullness ratio.In addition, do not adopt chromium, aluminium salt, but so environmental contamination reduction, reduce waste water treatment routine maintenance expense, reduced production cost.
Claims (1)
1. a method that adopts nanometer macerating enzyme tanning sheep known for its fine thick wool skin comprises the following steps:
(1) pickling: the sulfuric acid that the formic acid that is 2g/L～3g/L by concentration, concentration are 1g/L according to predetermined than row proportioning, carry out the sheep known for its fine thick wool skin after cleaning is carried out to pickling after and entirely tan;
(2) moisture regain: add the sheep known for its fine thick wool skin moisture regain of clear water to the acquisition of entirely tanning that temperature is 35～40 ℃ in rotating cylinder after, to the nanometer macerating enzyme that adds 5%～8% in rotating cylinder, rotating cylinder rotated after 4～5 hours at normal temperatures, be warming up to 40～50 ℃, be rotated further rotating cylinder 4～6 hours, add 0.5%～1% nanometer macerating enzyme to regulate pH value to 2.5, rotating cylinder is stopped operating;
(3) rinsing: in rotating cylinder, add 1%～2%H
3o purificant and 45～55 ℃ of water of 110%～170%, be rotated further rotating cylinder 30～50 minutes, changes H
3after the O purificant, with 35～45 ℃ of water washings of 150%～200%, after 15～25 minutes, discharge water;
(4) wash loose colour: again to the water of 40～55 ℃ that adds 100%～150% in rotating cylinder, again 10%～20% ethoxylized fatty alcohol is added in rotating cylinder, rotate rotating cylinder after 10～20 minutes, guarantee that in rotating cylinder, temperature reaches 45～60 ℃, be rotated further rotating cylinder and discharge water after 1.5～3 hours;
(5) washing: to adding again organic chrome-free tanning agent of 3%～5% and 80%～100% normal-temperature water in rotating cylinder, rotate 2.5～4 hours, add 1% wetting agent, rotate 30～50 minutes, then 1.5%～2% trisodium phosphate is opened by the aquation of 5.5 times, divide and add in rotating cylinder for 4 times, regulate pH to 3.5, be rotated further rotating cylinder 40～110 minutes, normal-temperature water with 350% is cleaned 10～15 minutes, after reaching requirement, discharge water, add again 110%～170% normal-temperature water, 1% ammoniacal liquor, rotate 40～60 minutes, normal-temperature water with 400% is cleaned 15～25 minutes, then after the sheep known for its fine thick wool skin after cleaning being carried out to water dumping, make temperature in rotating cylinder remain on 55 ℃～65 ℃ rotations 20 minutes, add again 85% formic acid 1g/L, see that look rotates 90 minutes, and be 3.5～3.8 o'clock skins of washing by water out recording the pH value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210011608 CN102534057B (en) | 2012-01-16 | 2012-01-16 | Method for tanning Tan sheep skin with nano softening enzyme |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210011608 CN102534057B (en) | 2012-01-16 | 2012-01-16 | Method for tanning Tan sheep skin with nano softening enzyme |
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| Publication Number | Publication Date |
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| CN102534057A CN102534057A (en) | 2012-07-04 |
| CN102534057B true CN102534057B (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201210011608 Expired - Fee Related CN102534057B (en) | 2012-01-16 | 2012-01-16 | Method for tanning Tan sheep skin with nano softening enzyme |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925597A (en) * | 2012-11-05 | 2013-02-13 | 青铜峡市金顺皮草有限责任公司 | Plant tanning method for tan sheep kivskin |
| CN103397116B (en) * | 2013-08-23 | 2015-03-11 | 宁夏西部皮草有限公司 | Tanning method of Tan sheep fur |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052898A (en) * | 1989-12-29 | 1991-07-10 | 沧州市制草厂 | Productive technology of soft ass leather |
| DE10008770A1 (en) * | 2000-02-24 | 2000-09-14 | Leder Kunstledertech Forsch | Liming and depilating skins and pelts using a catoxidative-enzymatic treatment in which the softened and defleshed skins and pelts are treated in a reductive phase in alkaline medium |
| CN1326004A (en) * | 2000-05-26 | 2001-12-12 | 吴佳 | Technology for tanning and dyeing lamb hide used as both fur and leather |
| CN101319254A (en) * | 2008-07-22 | 2008-12-10 | 淄博大桓九宝恩皮革集团有限公司 | Cleaning treatment process for cow leather |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1020753C (en) * | 1990-05-18 | 1993-05-19 | 张荣魁 | Technique for making fur coat with goose down |
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2012
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052898A (en) * | 1989-12-29 | 1991-07-10 | 沧州市制草厂 | Productive technology of soft ass leather |
| DE10008770A1 (en) * | 2000-02-24 | 2000-09-14 | Leder Kunstledertech Forsch | Liming and depilating skins and pelts using a catoxidative-enzymatic treatment in which the softened and defleshed skins and pelts are treated in a reductive phase in alkaline medium |
| CN1326004A (en) * | 2000-05-26 | 2001-12-12 | 吴佳 | Technology for tanning and dyeing lamb hide used as both fur and leather |
| CN101319254A (en) * | 2008-07-22 | 2008-12-10 | 淄博大桓九宝恩皮革集团有限公司 | Cleaning treatment process for cow leather |
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| CN102534057A (en) | 2012-07-04 |
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