CN103616340A - Non-destructive method for testing content of formaldehyde in textile - Google Patents
Non-destructive method for testing content of formaldehyde in textile Download PDFInfo
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- CN103616340A CN103616340A CN201310576758.5A CN201310576758A CN103616340A CN 103616340 A CN103616340 A CN 103616340A CN 201310576758 A CN201310576758 A CN 201310576758A CN 103616340 A CN103616340 A CN 103616340A
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Abstract
The invention discloses a non-destructive method for testing the content of formaldehyde in a textile. The method comprises the following steps: filling an absorption solution into equipment provided by the invention and fixing a textile to be detected on the equipment; then making the state of the absorption solution to be in a steam-liquid drop-steam ceaseless cycle from top to bottom by a condensing device and other outer equipment (such as a heating device) provided by the invention; eluting and absorbing released formaldehyde on the textile and determining an absorbance value by a spectrophotometer and through an acetylacetone developing process; and calculating the content of formaldehyde in the textile according to a standard formaldehyde working curve.
Description
Technical field
The present invention relates to a kind of textile inspection technology, specifically a kind of method of testing of textile non-destructive content of formaldehyde.
Background technology
Formaldehyde is commonly called as formaldehyde, is a kind of colourless gas, has the smell of pungent, and the eye nose etc. of human body is had to spread effect; And formaldehyde has compared with high toxicity ， China toxic chemicals to be controlled in list, and formaldehyde is in the second ，Yi Bei World Health Organization (WHO) and is defined as carcinogenic and teratogen, is generally acknowledged allergen, is potential strong mutagen.
Formaldehyde is cellular plasm poisonous substance, and it can directly act on amino, sulfydryl and carboxyl, generates methine derivant, thereby destroys body protein and enzyme, makes that histocyte occurs irreversiblely to solidify, necrosis; Suck after high-concentration formaldehyde, can occur serious stimulation and oedema and the headache etc. of respiratory tract, also bronchial astehma can occur; Skin directly contacts with formaldehyde, can cause slow poisoning, occurs mucous hyperemia, skin irritatin disease, allergic dermatitis etc.Constitutional symptom has headache, weak, palpitaition, have a sleepless night, lose weight and vegetative nervous disorder etc.
Formaldehyde is widely used in, in the operations such as the dyeing of textile product and rear arrangement, being mainly used to improve the permanance of auxiliary agent on textile etc.In addition, a lot of auxiliary agents in use also can produce formaldehyde owing to decomposing to wait.As the dimethylolurea being used in the wrinkle proofing of bafta, trimethylol melamine, dihydroxymethyl ethylene urea and hydroxymethyl-2 dihydroxy-ethylene urea etc. all can have the problem of decomposition, release formaldehyde under wet heat condition.Therefore, if fabric is washed insufficiently, after the textile of making contact with human body skin in taking process, can and cause harm to a certain degree safely to the skin of human body and even health of human body.China has formulated the index of controlling formaldehyde content of textiles in relevant textile standards, in the GB18401-2010 < < National Fundamental Safety Technical Standard For Textiles > > pressure standard of State General Administration for Quality Supervision's approval issue, stipulate: answer≤20mg/Kg of its formaldehyde detected level of category-A product, answer≤75mg/Kg of its formaldehyde detected level of category-B product, answer≤300mg/Kg of its formaldehyde detected level of C series products.
The existing formaldehyde testing standard of China has the mensuration part 1 of GB/T2912.1-2009 < < textile formaldehyde: the mensuration part 2 of the formaldehyde of free formaldehyde and hydrolysis (aqueous extraction method) > > and GB/T2912.2-2009 < < textile formaldehyde: the formaldehyde of release (vapor absorption method) > >.Its test philosophy is respectively:
Aqueous extraction method: sample extracts certain hour in the water-bath of 40 ℃, absorption liquid is with after diacetone colour developing, under 412nm wavelength, use the absorbance of formaldehyde in spectrophotometric determination nitrite ion, reference standard formaldehyde working curve, the content of calculation sample Free-formaldehyde.
Vapor absorption method: the fabric sample of certain mass hangs on the water surface in air-tight bottle, and the interior certain hour of the baking oven that is placed on steady temperature (49 ± 2 ℃), the formaldehyde discharging is after water absorbs, with after diacetone colour developing, by its absorbance of spectrophotometric determination, reference standard formaldehyde working curve, the releasable for maldehyde content of calculation sample.
But there is following shortcoming in existing formaldehyde content of textiles method of testing:
1. a certain position that above-mentioned two kinds of methods all need to choose textile shreds to be tested, and textile is produced to destruction to a certain degree, causes thus a large amount of wastings of resources.
2. vapor absorption method need to be placed 20h ± 15min under isoperibol.Test duration is long, and efficiency is low, and energy consumption is high.
Summary of the invention
For overcoming the shortcoming of method of testing in existing standard, the technical matters that quasi-solution of the present invention is determined is: the method for testing that a kind of textile non-destructive content of formaldehyde is provided.This method of testing is the steam method of testing of Non-Destructive Testing, neither can cause any destruction to textile, also can obtain testing result comparatively reliably simultaneously, has efficiency high, and energy consumption is low, is suitable for the features such as industrialization use.
The technical scheme that the present invention solve the technical problem is: design a kind of method of testing of textile non-destructive content of formaldehyde, this method of testing adopts following steps:
1). fixing sample: sample to be tested is fixed on to the place suitable for reading of the container that absorption liquid is housed, and makes the sample to be tested of absorption liquid upper opening of container open and flat, with rubber ring, sample is fixed; Then fasten the upper cover of absorption liquid container, the built-in condensing unit of this upper cover, realizes condensation object by external recirculated water;
2). cycling extraction test: pass into condensate water to upper cover condensate water water inlet, then open heating arrangement, realize the uninterrupted cycling extraction process up and down of water vapour-drop-water vapour;
3). complete test: the every cycling extraction certain hour of absorption liquid was as 30 minutes, just from absorption liquid liquid taking port, get and partially absorb liquid and carry out diacetone chromogenic reaction, with its absorbance of spectrophotometric instrumentation, when the absolute value of the difference of twice of front and back test value is less than 0.005, absorb and finish, (unit conversion is mg/m according to standard formaldehyde working curve, to calculate formaldehyde content of textiles
2).
Compared with prior art, the beneficial effect of method of testing of the present invention is mainly:
1. Non-Destructive Testing or non-destructive detect, and can not damage test textile, and as test passes, this textile can continue to use, and can save ample resources.
2. take appropriateness to improve temperature, shorten the route of time, improve detection efficiency; In addition, the water vapour contact fabric of higher temperature, can make fabric better wetting, above has condensing unit, and steam-condensation becomes after water droplet, and the absorption of PARA FORMALDEHYDE PRILLS(91,95) is more abundant, and detection efficiency is high, and energy consumption is low.
Accompanying drawing explanation
Fig. 1 is the equipment overall structure schematic diagram of a kind of embodiment of a kind of textile non-destructive of the present invention content of formaldehyde method of testing.
Fig. 2 is the plan structure schematic diagram of the equipment upper cover of a kind of embodiment of a kind of textile non-destructive of the present invention content of formaldehyde method of testing.
Fig. 3 is the sectional structure schematic diagram of the equipment liquid storing barrel of a kind of embodiment of a kind of textile non-destructive of the present invention content of formaldehyde method of testing.
Fig. 4 is the fixing schematic diagram of equipment sample of a kind of embodiment of a kind of textile non-destructive of the present invention content of formaldehyde method of testing.
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof, describe the present invention in detail.Embodiment be take the concrete enforcement that technical scheme of the present invention carries out as prerequisite, has provided detailed embodiment and process.But the application's claim protection domain is not limited to following embodiment to be described.
The method of testing of the textile non-destructive content of formaldehyde of the present invention's design (being called for short method of testing, referring to Fig. 1-4), comprises following operation steps:
1). fixing sample: sample to be tested (representing with B) is fixed on to the place suitable for reading of the container that absorption liquid is housed, and makes the sample to be tested of absorption liquid upper opening of container open and flat, with rubber ring 3, sample is fixed; Then fasten the upper cover of absorption liquid container, the built-in condensing unit of this upper cover, realizes condensation object by external recirculated water;
2). cycling extraction test: pass into condensate water to upper cover condensate water water inlet, then open heating arrangement, realize the uninterrupted cycling extraction process up and down of water vapour-drop-water vapour;
3). complete test: the every cycling extraction certain hour of absorption liquid was as 30 minutes, just from absorption liquid liquid taking port, get and partially absorb liquid and carry out diacetone chromogenic reaction, with its absorbance of spectrophotometric instrumentation, when the absolute value of the difference of twice of front and back test value is less than 0.005, absorb and finish, (unit conversion is mg/m according to standard formaldehyde working curve, to calculate formaldehyde content of textiles
2).
The preparation of described diacetone reagent and standard formaldehyde working curve are drawn the mensuration part 2 with reference to GB/T2912.2-2009 < < textile formaldehyde: the formaldehyde of release (vapor absorption method) > >.
The present invention has designed a kind of testing apparatus (abbreviation equipment of textile non-destructive content of formaldehyde simultaneously, referring to Fig. 1-4), it is characterized in that this testing apparatus requires design according to the method for testing of textile non-destructive content of formaldehyde claimed in claim 1, mainly comprises upper cover 1, liquid storing barrel 2, rubber ring 3 and heating arrangement 4; Described upper cover 1 outside diameter is identical with liquid storing barrel 2 liquid storage place overall diameters, and described upper cover 1 inside diameter is greater than liquid storing barrel 2 back cut diameters, and both are cylindric after fastening; In described upper cover 1, be furnished with condensing unit 1.1, external condensate water enters condensing unit 1.1 through connecting line, and flows out from the other end of condensing unit 1.1; Near described liquid storing barrel 2 is suitable for reading, position has indent notch 2.1 one, and for rubber ring 3 is installed, described rubber ring 3 is for fixing sample (representing with B); The lower sidewall of described liquid storing barrel 2 also has liquid taking port, and liquid taking port is provided with bang-bang control pipeline 2.2;
Described rubber ring 3, heating arrangement 4 and bang-bang control pipeline 2.2 are commercially available;
The present invention does not address part and is applicable to prior art.
Claims (2)
1. a method of testing for textile non-destructive content of formaldehyde, this method of testing adopts following steps:
1). fixing sample; Sample to be tested is directly fixed on to the upper opening of container place that absorption liquid is housed with rubber ring, and makes the sample to be tested of absorption liquid upper opening of container open and flat;
2). cycling extraction test: pass into condensate water to upper cover condensate water water inlet, then open heating arrangement, realize the uninterrupted cycling extraction process up and down of water vapour-drop-water vapour;
3). complete test: the every cycling extraction certain hour of absorption liquid was as 30 minutes, just from absorption liquid liquid taking port, get and partially absorb liquid and carry out diacetone chromogenic reaction, with its absorbance of spectrophotometric instrumentation, when the absolute value of the difference of twice of front and back test value is less than 0.005, absorb and finish, according to standard formaldehyde working curve, calculate formaldehyde content of textiles.
2. a method of testing equipment for textile non-destructive content of formaldehyde, is characterized in that this testing apparatus, according to the method for testing of textile non-destructive content of formaldehyde claimed in claim 1, mainly comprises upper cover, liquid storing barrel, rubber ring and heating arrangement; Described upper cover outside diameter is identical with liquid storing barrel liquid storage place outside diameter, and described upper cover inside diameter is greater than liquid storing barrel back cut diameter, and both are cylindric after fastening; In described upper cover, be furnished with condensing unit, external condensate water enters condensing unit through connecting line, and flows out from the other end of condensing unit; Near described liquid storing barrel is suitable for reading, position has indent notch one, and for compound rubber circle, described rubber ring is used for fixedly sample; The lower sidewall of described liquid storing barrel also has liquid taking port, and liquid taking port is provided with bang-bang control pipeline.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310576758.5A CN103616340B (en) | 2013-11-18 | 2013-11-18 | A kind of textile non-destructive content of formaldehyde method of testing and testing apparatus |
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| CN201310576758.5A CN103616340B (en) | 2013-11-18 | 2013-11-18 | A kind of textile non-destructive content of formaldehyde method of testing and testing apparatus |
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| CN103616340A true CN103616340A (en) | 2014-03-05 |
| CN103616340B CN103616340B (en) | 2015-12-02 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155294A (en) * | 2014-08-15 | 2014-11-19 | 广州衡创测试技术服务有限公司 | Method for determining free formaldehyde in fabric |
| CN104502339A (en) * | 2014-09-15 | 2015-04-08 | 中国纺织信息中心 | Method for detecting content of non-destructive formaldehyde of textile |
| CN104535745A (en) * | 2014-09-15 | 2015-04-22 | 中国纺织信息中心 | Non-destructive pH-value vibratory detection method for textile |
| CN104568792A (en) * | 2014-09-15 | 2015-04-29 | 中国纺织信息中心 | Equipment for detecting content of non-destructive formaldehyde in textile |
| CN105510476A (en) * | 2015-12-30 | 2016-04-20 | 田琳琳 | Method for measuring formaldehyde in textile |
| CN108007889A (en) * | 2018-01-09 | 2018-05-08 | 苏州中汽检测技术服务有限公司 | A kind of formaldehyde test container and formaldehyde test method |
| WO2020086033A3 (en) * | 2018-10-05 | 2020-07-23 | Akar Teksti̇l Gida Ve Turi̇zm Sanayi̇ Ti̇caret Anoni̇m Şi̇rketi̇ | Formaldehyde analysis method |
| CN112129806A (en) * | 2020-09-24 | 2020-12-25 | 曹登林 | Energy-concerving and environment-protective fabric formaldehyde content measuring equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1825094A (en) * | 2006-03-24 | 2006-08-30 | 重庆市计量质量检测研究院 | Method of fast detecting formol |
| CN201069419Y (en) * | 2007-02-09 | 2008-06-04 | 浙江省林产品质量检测站 | Perforation extraction instrument for formaldehyde release of controllable artificial board |
| CN101281140A (en) * | 2008-01-10 | 2008-10-08 | 浙江传化股份有限公司 | Rapid measuring method of fabric pH value |
| CN201628713U (en) * | 2010-04-15 | 2010-11-10 | 崔凤杰 | Improved artificial board formaldehyde determination device |
| CN202013347U (en) * | 2011-03-08 | 2011-10-19 | 师为 | Methanal release collector |
| CN203002016U (en) * | 2012-12-07 | 2013-06-19 | 顾金华 | Automatic extraction device for detection of textile pH value and formaldehyde |
-
2013
- 2013-11-18 CN CN201310576758.5A patent/CN103616340B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1825094A (en) * | 2006-03-24 | 2006-08-30 | 重庆市计量质量检测研究院 | Method of fast detecting formol |
| CN201069419Y (en) * | 2007-02-09 | 2008-06-04 | 浙江省林产品质量检测站 | Perforation extraction instrument for formaldehyde release of controllable artificial board |
| CN101281140A (en) * | 2008-01-10 | 2008-10-08 | 浙江传化股份有限公司 | Rapid measuring method of fabric pH value |
| CN201628713U (en) * | 2010-04-15 | 2010-11-10 | 崔凤杰 | Improved artificial board formaldehyde determination device |
| CN202013347U (en) * | 2011-03-08 | 2011-10-19 | 师为 | Methanal release collector |
| CN203002016U (en) * | 2012-12-07 | 2013-06-19 | 顾金华 | Automatic extraction device for detection of textile pH value and formaldehyde |
Non-Patent Citations (2)
| Title |
|---|
| 伏广伟等: "纺织品非破坏性检测的可行性研究", 《标准与测试》, no. 10, 31 December 2012 (2012-12-31) * |
| 吴俭俭等: "成衣甲醛测试方法研究", 《标准与测试》, no. 6, 31 December 2008 (2008-12-31) * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155294A (en) * | 2014-08-15 | 2014-11-19 | 广州衡创测试技术服务有限公司 | Method for determining free formaldehyde in fabric |
| CN104502339A (en) * | 2014-09-15 | 2015-04-08 | 中国纺织信息中心 | Method for detecting content of non-destructive formaldehyde of textile |
| CN104535745A (en) * | 2014-09-15 | 2015-04-22 | 中国纺织信息中心 | Non-destructive pH-value vibratory detection method for textile |
| CN104568792A (en) * | 2014-09-15 | 2015-04-29 | 中国纺织信息中心 | Equipment for detecting content of non-destructive formaldehyde in textile |
| CN105510476A (en) * | 2015-12-30 | 2016-04-20 | 田琳琳 | Method for measuring formaldehyde in textile |
| CN108007889A (en) * | 2018-01-09 | 2018-05-08 | 苏州中汽检测技术服务有限公司 | A kind of formaldehyde test container and formaldehyde test method |
| WO2020086033A3 (en) * | 2018-10-05 | 2020-07-23 | Akar Teksti̇l Gida Ve Turi̇zm Sanayi̇ Ti̇caret Anoni̇m Şi̇rketi̇ | Formaldehyde analysis method |
| CN112129806A (en) * | 2020-09-24 | 2020-12-25 | 曹登林 | Energy-concerving and environment-protective fabric formaldehyde content measuring equipment |
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Effective date of registration: 20170207 Address after: 100025 Beijing City, Chaoyang District Yan Jing Li Street No. 3 No. 47 building two layer Patentee after: China Textile Association (Beijing) Inspection Technology Services Limited Address before: 100742 Dongcheng District East Chang''an Avenue, No. 12, Beijing Patentee before: CHINA TEXTILE INFORMATION CENTER |
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