CN102851413A - Method for reducing free formaldehyde content of fur and textile, and equipment for the method - Google Patents
Method for reducing free formaldehyde content of fur and textile, and equipment for the method Download PDFInfo
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- CN102851413A CN102851413A CN2012103019091A CN201210301909A CN102851413A CN 102851413 A CN102851413 A CN 102851413A CN 2012103019091 A CN2012103019091 A CN 2012103019091A CN 201210301909 A CN201210301909 A CN 201210301909A CN 102851413 A CN102851413 A CN 102851413A
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Abstract
The invention provides a method for reducing free formaldehyde content of fur and textile and equipment for the method. The method is as below: suspending the fur and textile to be treated above a sealed container with a formaldehyde lyase solution; and keeping the temperature in the sealed container at 50-60 DEG C for 6-8 h. A ratio of the volume ml of formaldehyde lyase solution in the sealed container to the dry weight g of the fur and textile to be treated suspended in the container is 1.1-1.5:1. Two ends of the sealed container are respectively provided with a sealing door I and a sealing door II; the inner bottom of the sealed container is provided with a fumigation treatment liquid tank; and the upper part in the sealed container is fixed with a hanging rod. The fur and textile treated by the method provided by the invention have free formaldehyde content reaching the national standard of GB20400-2006 Leather and Fur Limit of Harmful Substances and level A of GB18401-2003 National General Safety Technical Code for Textile Products.
Description
Technical field
The present invention relates to a kind of method and used equipment of the method that reduces fur, Testing Method of Free Formaldehyde in Textiles content, belong to the method and apparatus that reduces formaldehyde content.
Background technology
Formaldehyde is a many-side people in the chemical industry, it is a kind of good fixing agent,, damage little because of its anti-corrosion function, tissue contracts less, typing is submissive, promote elasticity, pure white, the plentiful softness of dermatotome, springiness, fur is loose and bright, is the most frequently used chemical in existing fur, textiles tanning and the finishing technique.
Yet formaldehyde has toxicity, and HUMAN HEALTH is had harm: hormesis, skin irritation mucous membrane; The serious oedema of respiratory tract can appear in protoplasmic poison material, high density suction, and directly impact is breathed; Sensitization, the direct contact of skin can cause allergic dermatitis, color spot, necrosis, can bring out bronchial asthma when sucking high-concentration formaldehyde; Mutagenesis, high-concentration formaldehyde or a kind of genotoxicity material suck high density and may cause rhinopharyngeal neoplasm; Headache, dizzy, weak, nauseating ' uncomfortable in chest, throat sufferings, insomnia, hypomnesis, autonomic nervous dysfunction; Teratogenesis, the long-term suction of pregnant woman may cause fetal anomaly even stillborn foetus, and the long-term suction of man can cause teratospermia or death.
Fur, textiles are extensively made daily finished product, such as products such as leather shoes, gloves, fur clothing chaparajos, fur cap, leatherware, clothes.In present existing fur, the textiles tanning finishing technique, the most frequently used is the method for using formaldehyde tanning fur textiles.The fur textiles that this kind method is worked it out, submissiveer, plentiful softness, springiness, fur are loose, bright.But its free formaldehyde content is very high, generally more than 150～300mg/kg, directly contact head and shoulders above Limited Doses, and the Limited Doses of young articles for babies category-A 20mg/kg of skin category-B 75mg/kg among standard GB/T 20400-2006 " leather and fur limits of harmful substances ", GB16799-2008 " furniture leather " and the GB18401-2003 " National Fundamental Safety Technical Standard For Textiles ".The finished product people that make with these a little hides, textiles use, with serious harm people's health.
Summary of the invention
The objective of the invention is in order to solve existing fur, textiles and goods free formaldehyde content thereof very high, generally more than 150～300mg/kg, the finished product people that make with these a little hide textiless use, with serious harm people's health problem, and then provide a kind of method and the method equipment used that reduces fur, Testing Method of Free Formaldehyde in Textiles content.
The objective of the invention is to be achieved through the following technical solutions:
A kind of method that reduces fur, Testing Method of Free Formaldehyde in Textiles content is given pending fur, textiles first in formaldehyde lytic enzyme solution and to be soaked, and is suspended on a top in the encloses container that fills formaldehyde lytic enzyme solution again; Temperature in the encloses container is 50～60 degrees centigrade, keeps 6～8 hours in 50～60 degrees centigrade of airtight thermal environments; The formaldehyde lytic enzyme solution of containing in the described encloses container is a kind of amino-complex solution, and its ability of eliminating formaldehyde can be eliminated the formaldehyde of 10～20mg at every 1ml formaldehyde lytic enzyme solution, and its pH value is in 5.9～6.5 scopes; The ratio that hangs pending fur textiles dry weight g in the volumetric usage ml of used formaldehyde lytic enzyme solution and the container is 1.1～1.5: 1.
A kind of reduction fur, the equipment that the method for Testing Method of Free Formaldehyde in Textiles content is used, comprise encloses container, the heating medium entrance, sealed door one, the heating medium relief outlet, the stifling liquid bath of processing, stifling treatment solution relief outlet, sealed door two, heating rod, add thermal control and temperature indicator, heating medium liquid level display and fur hanger bar, the two ends of described encloses container are separately installed with sealed door one and sealed door two, bottom in the encloses container is provided with the stifling liquid bath of processing, stifling bottom of processing liquid bath is connected with stifling treatment solution relief outlet, top in the encloses container is fixed with the fur hanger bar, be provided with heating rod in the interlayer of encloses container, the top of encloses container is connected with the heating medium entrance, the bottom of encloses container is connected with the heating medium relief outlet, heating medium entrance and heating medium relief outlet all are connected with the interlayer of encloses container, add thermal control and temperature indicator and the heating medium liquid level display is installed on the encloses container.
The present invention has the following advantages: the present invention does not change the tanning finishing process of original fur, textiles, and fur, the textiles of its product increased aldehydes removal operation, saving technique improvement cost one.
The technology of the present invention requires threshold low, only needs an encloses container, purchase formaldehyde lytic enzyme and thermal environment space to get final product, and cost is low, and technical matters requires low.
Fur, the Testing Method of Free Formaldehyde in Textiles content processed through the inventive method reduce greatly, reduced rate reaches more than 85%, drops to the level of standard GB/T 20400-2006 " leather and fur limits of harmful substances ", GB18401-2003 " National Fundamental Safety Technical Standard For Textiles " category-A 20mg/kg from present general free formaldehyde content (150～200) mg/kg.
Formaldehyde lytic enzyme of the present invention is a kind of amino-complex solution, and is nontoxic, and through generating complex compound after vapor absorption of the present invention and the formaldehyde complexing, there is not secondary pollution in its stable in properties.Simultaneously, stifling process is not discharged any obnoxious flavour, non-environmental-pollution.Fur, textiles by the present invention processes still keep fur, the original performance of textiles, it are not caused any damage, infringement.
Description of drawings
Fig. 1 is the used device structure synoptic diagram of method that the present invention reduces fur, Testing Method of Free Formaldehyde in Textiles content;
Fig. 2 is the A-A sectional view of Fig. 1.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing: present embodiment is implemented under take technical solution of the present invention as prerequisite, has provided detailed embodiment, but protection scope of the present invention is not limited to following embodiment.
A kind of method that reduces fur, Testing Method of Free Formaldehyde in Textiles content that present embodiment is related is given pending fur, textiles first in formaldehyde lytic enzyme solution and to be soaked, and is suspended on a top in the encloses container that fills formaldehyde lytic enzyme solution again; Temperature in the encloses container is 50～60 degrees centigrade, keeps 6～8 hours in 50～60 degrees centigrade of airtight thermal environments; The pending leather of suspension, the ratio of fur dry weight g are 1.1～1.5: 1 in the volumetric usage ml of the formaldehyde lytic enzyme solution of containing in the described encloses container and the container.
Described formaldehyde lytic enzyme is a kind of amino-complex solution, and its ability of eliminating formaldehyde can be eliminated the formaldehyde of 10～20mg at every 1ml formaldehyde lytic enzyme solution, and the pH value of formaldehyde lytic enzyme solution is in 5.9～6.5 scopes.
Described fur, the textiles that hangs on top in the encloses container launches, do not answer the tired group of shortening in heaps.
Described in 55 degrees centigrade of airtight thermal environments the insulation 7 hours.
The pH value of described formaldehyde lytic enzyme solution is 6.2.
As depicted in figs. 1 and 2, a kind of reduction fur that present embodiment is related, the equipment that the method for Testing Method of Free Formaldehyde in Textiles content is used, comprise encloses container 1, heating medium entrance 2, sealed door 1, heating medium relief outlet 4, the stifling liquid bath 5 of processing, stifling treatment solution relief outlet 6, sealed door 27, heating rod 8, add thermal control and temperature indicator 9, heating medium liquid level display 10 and fur hanger bar 11, the two ends of described encloses container 1 are separately installed with sealed door 1 and sealed door 27, bottom in the encloses container 1 is provided with the stifling liquid bath 5 of processing, stifling bottom of processing liquid bath 5 is connected with stifling treatment solution relief outlet 6, top in the encloses container 1 is fixed with fur hanger bar 11, be provided with heating rod 8 in the interlayer 12 of encloses container 1, the top of encloses container 1 is connected with heating medium entrance 2, the bottom of encloses container 1 is connected with heating medium relief outlet 4, heating medium entrance 2 and heating medium relief outlet 4 all are connected with the interlayer 12 of encloses container 1, add thermal control and temperature indicator 9 and heating medium liquid level display 10 and are installed on the encloses container 1.
The interior Ullage of the interlayer 12 of described encloses container 1 is from being 50～100mm.
Described heating medium is water or oil.
Described encloses container is the stifling still of cabinet type stainless steel double-layer seal.
With needs carry out the fur of formaldehyde treated or textiles put into fully soak in the formaldehyde lytic enzyme solution tank after, every is launched on the loose hanger that is suspended to top in the encloses container, hide is separated from each other do not squeeze in a pile agglomerating.
At the stifling formaldehyde lytic enzyme (the stifling special-purpose formaldehyde lytic enzyme of selecting Beijing Zhongke Zhonghuan Environmental Application Technology Research Center to produce) of annotating in the liquid bath of processing of encloses container.
Carry out the formaldehyde content test according to fur or textile samples that GB GB/T19941-2005 " mensuration of leather and fur chemical test formaldehyde content " or GB/T2912.1-2009 " formaldehyde (aqueous extraction method) that the mensuration of textile formaldehyde is dissociated and is hydrolyzed " learnt from else's experience after processing in 7 hours.The general who has surrendered reaches more than 85% under the formaldehyde after the processing.
If because of hang fur, textiles in the encloses container do not have fully launch, agglomerating in heaps, and because fur, formaldehyde content of textiles before processing are very high to more than the 200mg/kg, cause result not reach the category-A product result of 20mg/kg, can again process.Result after again processing will reach expection fully.
Stifling treatment solution-formaldehyde lytic enzyme because the amount of processing in the rear container can tail off, must be added into the amount of requirement before second batch is processed.Treatment solution can only use and be no more than twice.Afterwards, the treatment solution that more renews.
The above; only be the better embodiment of the present invention; these embodiments all are based on the different implementations under the general idea of the present invention; and protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (9)
1. a method that reduces fur, Testing Method of Free Formaldehyde in Textiles content is characterized in that, pending fur, textiles are suspended on a top in the encloses container that fills formaldehyde lytic enzyme solution; Temperature in the encloses container is 50～60 degrees centigrade, keeps 6～8 hours in 50～60 degrees centigrade of airtight thermal environments; The pending fur of suspension, the ratio of textiles dry weight g are 1.1～1.5: 1 in the volumetric usage ml of the formaldehyde lytic enzyme solution of containing in the described encloses container and the container.
2. the method for reduction fur according to claim 1, Testing Method of Free Formaldehyde in Textiles content, it is characterized in that, described formaldehyde lytic enzyme is a kind of amino-complex solution, its ability of eliminating formaldehyde can be eliminated the formaldehyde of 10～20mg at every 1ml formaldehyde lytic enzyme solution, and the pH value of formaldehyde lytic enzyme solution is in 5.9～6.5 scopes.
3. the method for reduction fur according to claim 1, Testing Method of Free Formaldehyde in Textiles content is characterized in that, described pending fur, textiles carry out it first hanging on the encloses container top after formaldehyde lytic enzyme solution soaks processing again.
4. the method for reduction fur according to claim 1, Testing Method of Free Formaldehyde in Textiles content is characterized in that, described in 55 degrees centigrade of airtight thermal environments the insulation 7 hours.
5. the method for reduction fur according to claim 2, Testing Method of Free Formaldehyde in Textiles content is characterized in that, the pH value of described formaldehyde lytic enzyme solution is 6.2.
6. described reduction fur of claim 1, the equipment that the method for Testing Method of Free Formaldehyde in Textiles content is used, it is characterized in that, comprise encloses container, the heating medium entrance, sealed door one, the heating medium relief outlet, the stifling liquid bath of processing, stifling treatment solution relief outlet, sealed door two, heating rod, add thermal control and temperature indicator, heating medium liquid level display and fur hanger bar, the two ends of described encloses container are separately installed with sealed door one and sealed door two, bottom in the encloses container is provided with the stifling liquid bath of processing, stifling bottom of processing liquid bath is connected with stifling treatment solution relief outlet, top in the encloses container is fixed with the fur hanger bar, be provided with heating rod in the interlayer of encloses container, the top of encloses container is connected with the heating medium entrance, the bottom of encloses container is connected with the heating medium relief outlet, heating medium entrance and heating medium relief outlet all are connected with the interlayer of encloses container, add thermal control and temperature indicator and the heating medium liquid level display is installed on the encloses container.
7. equipment according to claim 6 is characterized in that, the interior Ullage of the interlayer of described encloses container is from being 50～100mm.
8. equipment according to claim 6 is characterized in that, described heating medium is water or oil.
9. equipment according to claim 6 is characterized in that, described encloses container is the stifling still of cabinet type stainless steel double-layer seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103019091A CN102851413A (en) | 2012-07-25 | 2012-08-23 | Method for reducing free formaldehyde content of fur and textile, and equipment for the method |
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| CN201210258493.X | 2012-07-25 | ||
| CN201210258493 | 2012-07-25 | ||
| CN2012103019091A CN102851413A (en) | 2012-07-25 | 2012-08-23 | Method for reducing free formaldehyde content of fur and textile, and equipment for the method |
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| CN102851413A true CN102851413A (en) | 2013-01-02 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120351A (en) * | 2016-07-01 | 2016-11-16 | 东华大学 | A kind of bioanalysis continuous processing wool fabric device and process wool fabric process |
| CN106731776A (en) * | 2017-01-25 | 2017-05-31 | 于清奎 | Indoor decoration pollution bioanalysis comprehensive processing method |
| CN107629702A (en) * | 2017-10-10 | 2018-01-26 | 苏州百益倍肯新材料科技有限公司 | A kind of leather is except net taste brightener of aldehyde and preparation method thereof |
| CN113293241A (en) * | 2021-06-01 | 2021-08-24 | 嘉兴学院 | Method for treating free formaldehyde in fur product |
| CN115595790A (en) * | 2022-10-18 | 2023-01-13 | 重庆段氏服饰实业有限公司（Cn） | Preparation method of formaldehyde-free ready-made shirt |
| WO2023060619A1 (en) * | 2021-10-17 | 2023-04-20 | 南通市多乾新材料科技有限公司 | Improved formaldehyde removal device |
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Patent Citations (7)
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| US3712086A (en) * | 1971-10-26 | 1973-01-23 | Mc Graw Edison Co | Apparatus for producing a durable press in garments containing cellulose or cellulosic derivatives |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120351A (en) * | 2016-07-01 | 2016-11-16 | 东华大学 | A kind of bioanalysis continuous processing wool fabric device and process wool fabric process |
| CN106731776A (en) * | 2017-01-25 | 2017-05-31 | 于清奎 | Indoor decoration pollution bioanalysis comprehensive processing method |
| CN107629702A (en) * | 2017-10-10 | 2018-01-26 | 苏州百益倍肯新材料科技有限公司 | A kind of leather is except net taste brightener of aldehyde and preparation method thereof |
| CN113293241A (en) * | 2021-06-01 | 2021-08-24 | 嘉兴学院 | Method for treating free formaldehyde in fur product |
| WO2023060619A1 (en) * | 2021-10-17 | 2023-04-20 | 南通市多乾新材料科技有限公司 | Improved formaldehyde removal device |
| CN115595790A (en) * | 2022-10-18 | 2023-01-13 | 重庆段氏服饰实业有限公司（Cn） | Preparation method of formaldehyde-free ready-made shirt |
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Application publication date: 20130102 |