CN101613771A - A kind of fur tanning method that can remove removing residue formaldehyde in the fur goods - Google Patents
A kind of fur tanning method that can remove removing residue formaldehyde in the fur goods Download PDFInfo
- Publication number
- CN101613771A CN101613771A CN200910069730A CN200910069730A CN101613771A CN 101613771 A CN101613771 A CN 101613771A CN 200910069730 A CN200910069730 A CN 200910069730A CN 200910069730 A CN200910069730 A CN 200910069730A CN 101613771 A CN101613771 A CN 101613771A
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- CN
- China
- Prior art keywords
- fur
- formaldehyde
- skin
- tanning
- goods
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 138
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 238000005554 pickling Methods 0.000 claims abstract description 17
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000001301 oxygen Substances 0.000 claims abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 7
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims abstract description 7
- 230000002829 reductive effect Effects 0.000 claims abstract description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 15
- 235000019253 formic acid Nutrition 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 206010053615 Thermal burn Diseases 0.000 claims description 10
- 238000005282 brightening Methods 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 5
- 238000009960 carding Methods 0.000 claims description 5
- 238000005238 degreasing Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 235000013305 food Nutrition 0.000 claims description 5
- 238000007654 immersion Methods 0.000 claims description 5
- 150000002978 peroxides Chemical class 0.000 claims description 5
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 5
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 230000006641 stabilisation Effects 0.000 claims description 5
- 238000011105 stabilization Methods 0.000 claims description 5
- 235000011149 sulphuric acid Nutrition 0.000 claims description 5
- 239000001117 sulphuric acid Substances 0.000 claims description 5
- 238000001238 wet grinding Methods 0.000 claims description 5
- 239000012466 permeate Substances 0.000 claims description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract description 2
- 238000007344 nucleophilic reaction Methods 0.000 abstract description 2
- 241000772415 Neovison vison Species 0.000 description 1
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention discloses a kind of fur tanning method that can remove removing residue formaldehyde in the fur goods.This fur tanning method is to have added pickling, oxygen after the tanning operation to wash and remove the operation that remains in the formaldehyde in the rawhide in the tannery in the fur tanning method that the present industry is used always, utilization changes the molecular structure of formaldehyde as the reaction of the vat powder of reductive agent, the hydrogen peroxide that oxygenizement is arranged and formaldehyde and the nucleophilic reaction of S-WAT and formaldehyde, thereby makes denaturing formaldehyde and remove free formaldehyde.Therefore free formaldehyde content＜20ppm not only can satisfy national standard, but also can reduce actual bodily harm and environmental pollution to operator in the made fur goods.
Description
Technical field
The invention belongs to the tanning technology field, particularly relate to a kind of fur tanning method that can remove removing residue formaldehyde in the fur goods.
Background technology
In the tanning industry, the qualitative change process that makes rawhide become leather is called tanning.Wherein rawhide mainly comprises sheepskin, rabbit, mink skin, raw fox skin, ox-hide, horse skin etc., and tanned fur goods can be used for making such as products for civilian use such as clothes, shoes and hats, automobile cushion, indoor sheep shorn velvet blankets.Employed chemical material is called tanning agent in the tannery.All contain formaldehyde in many tanning agents commonly used at present,, be the objectionable impurities of generally acknowledging in the world therefore, and also free formaldehyde can be residually arranged in the fur goods because formaldehyde very easily damages and produce environmental pollution to operator's health.So various countries have all worked out standard to the content of free formaldehyde in the fur goods at present, wherein free formaldehyde content is answered＜300ppm in the fur goods of China's standard code home sale, free formaldehyde content requirement＜75ppm in the fur goods of outlet Japan, Korea S, free formaldehyde content then requires＜20ppm in outlet America and Europe's the fur goods, and adopts the content of free formaldehyde in the made fur goods of present fur tanning method all can't satisfy national Specification.
Summary of the invention
In order to address the above problem, to the object of the present invention is to provide a kind of actual bodily harm and environmental pollution that can reduce, and can satisfy the fur tanning method that to remove removing residue formaldehyde in the fur goods of national standard operator.
In order to achieve the above object, provided by the inventionly can remove that the fur tanning method of removing residue formaldehyde comprises the following step that carries out in order in the fur goods:
1) at first according to the at present general classification of the industry, immersion, return bright, wash skin, soak, return aquatic foods again, fleshing, degreasing, soften, pickling and tanning handle item by item to rawhide;
2) under 35-45 ℃ temperature, above-mentioned fur through tanning joined in the sulphuric acid soln that concentration is 0.5-1.2g/L carry out pickling, the time is 2 hours, goes out the skin water dumping then;
3) under 55 ℃ temperature, it is to carry out oxygen in the hydrogen peroxide of 6-15ml/L and the solution that 0.8-1.5ml/L ammoniacal liquor is formed to wash that the fur after the above-mentioned pickling is joined by add-on, and the time is 4-7 hour, goes out the skin water dumping then;
4) under 45 ℃ temperature, with the above-mentioned fur of washing processing through peroxide be dipped in by add-on be 4-10g/L as in the S-WAT of the vat powder of reductive agent, 6-8g/L and the solution that 0.2-0.5g/L forms as the fatty alcohol-polyoxyethylene ether of permeate agent to remove the formaldehyde that remains in the tannery in the rawhide, treatment time is 14-16 hour, going out skin adding in preceding 2 hours formic acid then, transfer to 3.5 ± 0.2 until pH value with solution, the pH value stabilization of controlling out simultaneously the preceding solution of skin is at 4.5-5.0, go out skin afterwards, control water;
5) evenly spray dermatotome, stretching, extension, scald hair according to present general washing, wet-milling dermatotome, drying, linked network, moisture regain, the warm water of the industry at last, driedly draw, brush formic acid, alcohol and brightening agent, scald hair, carding, brush formic acid, alcohol and brightening agent, boiling hot hair, nog plate, dedusting and finishing technique are handled item by item the above-mentioned fur of having removed formaldehyde and promptly be can be made into qualified fur goods.
It is provided by the invention that can to remove the fur tanning method of removing residue formaldehyde in the fur goods be to have added pickling, oxygen after the tanning operation to wash and remove the operation that remains in the formaldehyde in the rawhide in the tannery in the fur tanning method commonly used of the industry at present, utilization changes the molecular structure of formaldehyde as the reaction of the vat powder of reductive agent, the hydrogen peroxide that oxygenizement is arranged and formaldehyde and the nucleophilic reaction of S-WAT and formaldehyde, thereby makes denaturing formaldehyde and remove free formaldehyde.Therefore free formaldehyde content＜20ppm not only can satisfy national standard, but also can reduce actual bodily harm and environmental pollution to operator in the made fur goods.
Embodiment
Can remove to provided by the invention that the fur tanning method of removing residue formaldehyde is elaborated in the fur goods below in conjunction with specific embodiment.
Embodiment 1:
Present embodiment provides can remove that the fur tanning method of removing residue formaldehyde comprises the following step that carries out in order in the fur goods:
1) at first according to the at present general classification of the industry, immersion, return bright, wash skin, soak, return aquatic foods again, fleshing, degreasing, soften, pickling, tanning and tanning handle item by item to rawhide;
2) under 35 ℃ temperature, above-mentioned fur through tanning joined in the sulphuric acid soln that concentration is 1.0g/L carry out pickling, the time is 2 hours, goes out the skin water dumping then;
3) under 55 ℃ temperature, it is to carry out oxygen in the hydrogen peroxide of 10ml/L and the solution that 1.2ml/L ammoniacal liquor is formed to wash that the fur after the above-mentioned pickling is joined by add-on, and the time is 6 hours, goes out the skin water dumping then;
4) under 45 ℃ temperature, it is to remove the formaldehyde that remains in the tannery in the fur in the solution formed of the fatty alcohol-polyoxyethylene ether of the S-WAT of vat powder, 8g/L of 8g/L and 0.3g/L that the above-mentioned fur of washing processing through peroxide is dipped in by add-on, treatment time is 16 hours, going out skin adding in preceding 2 hours formic acid then, transfer to 3.5 ± 0.2 until pH value with solution, the pH value stabilization of controlling out simultaneously the preceding solution of skin goes out skin afterwards at 4.5-5.0, control water;
5) evenly spray dermatotome, stretching, extension, scald hair according to present general washing, wet-milling dermatotome, drying, linked network, moisture regain, the warm water of the industry at last, driedly draw, brush formic acid, alcohol and brightening agent, scald hair, carding, brush formic acid, alcohol and brightening agent, boiling hot hair, nog plate, dedusting and finishing technique are handled item by item the above-mentioned fur of having removed formaldehyde and promptly be can be made into qualified fur goods.Free formaldehyde content is 14ppm in the made fur goods.
Embodiment 2:
Present embodiment provides can remove that the fur tanning method of removing residue formaldehyde comprises the following step that carries out in order in the fur goods:
1) at first according to the at present general classification of the industry, immersion, return bright, wash skin, soak, return aquatic foods again, fleshing, degreasing, soften, pickling and tanning handle item by item to rawhide;
2) under 38 ℃ temperature, above-mentioned fur through tanning joined in the sulphuric acid soln that concentration is 1.1g/L carry out pickling, the time is 2 hours, goes out the skin water dumping then;
3) under 55 ℃ temperature, it is to carry out oxygen in the hydrogen peroxide of 10ml/L and the solution that 1.2ml/L ammoniacal liquor is formed to wash that the fur after the above-mentioned pickling is joined by add-on, and the time is 6 hours, goes out the skin water dumping then;
4) under 45 ℃ temperature, it is to remove the formaldehyde that remains in the tannery in the fur in the solution formed of the fatty alcohol-polyoxyethylene ether of the S-WAT of vat powder, 6g/L of 6g/L and 0.3g/L that the above-mentioned fur of washing processing through peroxide is dipped in by add-on, treatment time is 14 hours, going out skin adding in preceding 2 hours formic acid then, transfer to 3.5 ± 0.2 until pH value with solution, the pH value stabilization of controlling out simultaneously the preceding solution of skin goes out skin afterwards at 4.5-5.0, control water;
5) evenly spray dermatotome, stretching, extension, scald hair according to present general washing, wet-milling dermatotome, drying, linked network, moisture regain, the warm water of the industry at last, driedly draw, brush formic acid, alcohol and brightening agent, scald hair, carding, brush formic acid, alcohol and brightening agent, boiling hot hair, nog plate, dedusting and finishing technique are handled item by item the above-mentioned fur of having removed formaldehyde and promptly be can be made into qualified fur goods.Free formaldehyde content is 18ppm in the made fur goods.
Embodiment 3:
Present embodiment provides can remove that the fur tanning method of removing residue formaldehyde comprises the following step that carries out in order in the fur goods:
1) at first according to the at present general classification of the industry, immersion, return bright, wash skin, soak, return aquatic foods again, fleshing, degreasing, soften, pickling and tanning handle item by item to rawhide;
2) under 40 ℃ temperature, with above-mentioned fur through tanning join concentration be 1.2g/L sulphuric acid soln in carry out pickling, the time is 2 hours, goes out the skin water dumping then;
3) under 55 ℃ temperature, it is to carry out oxygen in the hydrogen peroxide of 10ml/L and the solution that 1.2ml/L ammoniacal liquor is formed to wash that the fur after the above-mentioned pickling is joined by add-on, and the time is 6 hours, goes out the skin water dumping then;
4) under 45 ℃ temperature, it is to remove the formaldehyde that remains in the tannery in the fur in the solution formed of the fatty alcohol-polyoxyethylene ether of the S-WAT of vat powder, 5g/L of 4g/L and 0.3g/L that the above-mentioned fur of washing processing through peroxide is dipped in by add-on, treatment time is 15 hours, going out skin adding in preceding 2 hours formic acid then, transfer to 3.5 ± 0.2 until pH value with solution, the pH value stabilization of controlling out simultaneously the preceding solution of skin goes out skin afterwards at 4.5-5.0, control water;
5) evenly spray dermatotome, stretching, extension, scald hair according to present general washing, wet-milling dermatotome, drying, linked network, moisture regain, the warm water of the industry at last, driedly draw, brush formic acid, alcohol and brightening agent, scald hair, carding, brush formic acid, alcohol and brightening agent, boiling hot hair, nog plate, dedusting and finishing technique are handled item by item the above-mentioned fur of having removed formaldehyde and promptly be can be made into qualified fur goods.Free formaldehyde content is 15ppm in the made fur goods.
Claims (1)
1, a kind of fur tanning method that can remove removing residue formaldehyde in the fur goods is characterized in that: describedly can remove that the fur tanning method of removing residue formaldehyde comprises the following step that carries out in order in the fur goods:
1) at first according to the at present general classification of the industry, immersion, return bright, wash skin, soak, return aquatic foods again, fleshing, degreasing, soften, pickling and tanning handle item by item to rawhide;
2) under 35-45 ℃ temperature, above-mentioned fur through tanning joined in the sulphuric acid soln that concentration is 0.5-1.2g/L carry out pickling, the time is 2 hours, goes out the skin water dumping then;
3) under 55 ℃ temperature, it is to carry out oxygen in the hydrogen peroxide of 6-15ml/L and the solution that 0.8-1.5ml/L ammoniacal liquor is formed to wash that the fur after the above-mentioned pickling is joined by add-on, and the time is 4-7 hour, goes out the skin water dumping then;
4) under 45 ℃ temperature, with the above-mentioned fur of washing processing through peroxide be dipped in by add-on be 4-10g/L as in the S-WAT of the vat powder of reductive agent, 6-8g/L and the solution that 0.2-0.5g/L forms as the fatty alcohol-polyoxyethylene ether of permeate agent to remove the formaldehyde that remains in the tannery in the fur, treatment time is 14-16 hour, going out skin adding in preceding 2 hours formic acid then, transfer to 3.5 ± 0.2 until pH value with solution, the pH value stabilization of controlling out simultaneously the preceding solution of skin is at 4.5-5.0, go out skin afterwards, control water;
5) evenly spray dermatotome, stretching, extension, scald hair according to present general washing, wet-milling dermatotome, drying, linked network, moisture regain, the warm water of the industry at last, driedly draw, brush formic acid, alcohol and brightening agent, scald hair, carding, brush formic acid, alcohol and brightening agent, boiling hot hair, nog plate, dedusting and finishing technique are handled item by item the above-mentioned fur of having removed formaldehyde and promptly be can be made into qualified fur goods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910069730A CN101613771B (en) | 2009-07-15 | 2009-07-15 | Fur tanning method capable of removing residual formaldehyde in fur product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910069730A CN101613771B (en) | 2009-07-15 | 2009-07-15 | Fur tanning method capable of removing residual formaldehyde in fur product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101613771A true CN101613771A (en) | 2009-12-30 |
| CN101613771B CN101613771B (en) | 2012-09-26 |
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ID=41493656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910069730A Active CN101613771B (en) | 2009-07-15 | 2009-07-15 | Fur tanning method capable of removing residual formaldehyde in fur product |
Country Status (1)
| Country | Link |
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| CN (1) | CN101613771B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104353211A (en) * | 2014-09-25 | 2015-02-18 | 中国石油化工股份有限公司 | Scavenging agent for butadiene peroxide at bottom of butadiene storing tank |
| CN105803132A (en) * | 2016-03-28 | 2016-07-27 | 宁夏成丰农业科技开发股份有限公司 | Fox-fur-imitating production technology |
| CN108220506A (en) * | 2018-01-26 | 2018-06-29 | 北京恒普科技有限责任公司 | Animal fur removes aldehyde process |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038947C (en) * | 1992-03-31 | 1998-07-01 | 谢昭义 | Tanning technique for snake leather, its leather material processed by said technique for painting and calligraphy |
| CN1065097A (en) * | 1992-03-31 | 1992-10-07 | 谢昭义 | A kind of process for tanning of snakeskin |
| CN101463397B (en) * | 2009-01-14 | 2012-07-11 | 王德振 | Method for manufacturing chromium-free tanning environment protection pigskin shoes |
-
2009
- 2009-07-15 CN CN200910069730A patent/CN101613771B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104353211A (en) * | 2014-09-25 | 2015-02-18 | 中国石油化工股份有限公司 | Scavenging agent for butadiene peroxide at bottom of butadiene storing tank |
| CN104353211B (en) * | 2014-09-25 | 2017-09-29 | 中国石油化工股份有限公司青岛安全工程研究院 | Butadiene storage tank bottom Butadiene Peroxide scavenger |
| CN105803132A (en) * | 2016-03-28 | 2016-07-27 | 宁夏成丰农业科技开发股份有限公司 | Fox-fur-imitating production technology |
| CN108220506A (en) * | 2018-01-26 | 2018-06-29 | 北京恒普科技有限责任公司 | Animal fur removes aldehyde process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101613771B (en) | 2012-09-26 |
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Address after: 300384 Tianjin Nankai District Huayuan Industrial Zone Xinmao Science and Technology Park G Block Five Floor A3 Unit Patentee after: Tianjin Hailuolan Science and Technology Development Co., Ltd. Address before: 300384 Tianjin Nankai District Huayuan Industrial Zone Xinmao Science and Technology Park G Block Five Floor A3 Unit Patentee before: Tianjin Hai Hai Technology Development Co., Ltd. |
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