CN104062289A - Detection method for ammonia odor removal performance of textile - Google Patents
Detection method for ammonia odor removal performance of textile Download PDFInfo
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- CN104062289A CN104062289A CN201310088461.4A CN201310088461A CN104062289A CN 104062289 A CN104062289 A CN 104062289A CN 201310088461 A CN201310088461 A CN 201310088461A CN 104062289 A CN104062289 A CN 104062289A
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Abstract
The invention provides a detection method for the ammonia odor removal performance of a textile. The method comprises the following successive steps: (1) preparing an ammonia odor source; (2) allowing a sample to absorb odor; (3) treating residual odor substances; (4) desorbing the sample so as to extract the odor substances; (5) measuring absorbance; and (6) calculating ammonia concentrations according to absorbance measured in the step (5). According to the invention, odor is introduced into an enclosed environment, the sample is allowed to absorb odor, then the sample is taken out and put in a clean environment so as to realize the deodorization function of the sample, and finally, the sample is taken out and put in extract so as to realize extraction of residual odor substances in the sample; the decrease rate of odor is used as an evaluation index for deodorizing performance of the textile; detection and evaluation are carried out by comparing anti-washing capability of the sample before washing and after washing; the detection method has the advantages of accurate detection results, a fast speed and a wide application scope.
Description
Technical field
The invention belongs to textile deodorization technology field, be specifically related to a kind of textile that detects and there is the method except ammonia foul smell performance.
Background technology
Around foul smell moment in our daily life is present in, and odorous substance touches above textile is easy to be attached to.Textile is the important carrier of microbial reproduction and transmission, also be the medium that numerous disease produces and propagates, therefore people increase day by day to the demand with deodorization functions textile, the research and development of this series products are subject to very big concern and the wide participation of numerous domestic scientific research institution, institution of higher learning and textile garment enterprise, and many batches of deodorizing textile scientific payoffss continue to bring out.
The antibacterial deodourizing of textile refers to that textile is under use state, suppresses the microbial reproduction taking sweat and human body skin metabolic product as nutrient matrix, suppresses microorganisms and propagates stench and various diseases, also protects textile itself simultaneously.At present, the textile with deodorization functions occurring on market is of a great variety, and the production and processing technology of these products is had nothing in common with each other, and what have is coated with polyoxy metallics on fabric; What have adds USING NATURAL MINERAL ADDITIVE in fiber production process or in fabric finishing process; What have adds nano-Ag particles in fiber; The employing photocatalyst technology and the air catalyst technology etc. that also have.But how to this series products detect with evaluate be face at present one of outstanding problem.
The kind of foul smell is a lot, bad smell of perspiration: ammonia, acetic acid, isovaleric acid etc.; Aged smelly: ammonia, acetic acid, isovaleric acid, nonenyl aldehyde etc.; Drain smelly: ammonia, acetic acid, sulfuretted hydrogen, methyl mercaptan, diindyl base acetic acid etc.; Cigarette is smelly: ammonia, acetic acid, sulfuretted hydrogen, acetaldehyde, pyridine etc.; Rubbish is smelly: ammonia, acetic acid, sulfuretted hydrogen, methyl mercaptan, trimethylamine etc.These physical property differences, detection method difference.Ammonia is the material all containing in nearly all foul smell, therefore to select ammonia be representative odor source in the present invention, selecting and processing the knit fabric (fabric parameter is: cotton/wash 70/30, weight per square meter 183g) with deodorization functions through air catalyst is test specimen.Explore detection textile and there is method and the evaluation index except ammonia foul smell performance.
Consult existing patent and documents and materials, also do not there is the report except the method for ammonia foul smell performance for detecting textile at present.
Summary of the invention
The object of the present invention is to provide a kind of textile that detects to there is the method except ammonia foul smell performance, the method is in closed environment, to add foul smell, allow sample adsorb foul smell, again sample is taken out and is placed under another clean environment, realize the deodorization functions of sample, finally sample is taken out and is placed in extract, residual odorous substance in extraction sample; Evaluation index using the slip of foul smell as textile deodoriging properties; And comparative sample washing is front and the rear anti-washability of washing, this detection method testing result is accurate, and speed is fast, applied range.
Technical solution of the present invention is as follows: the invention provides a kind of textile that detects and have the method except ammonia foul smell performance, comprise the following steps successively:
(1) preparation of ammonia odor source: get 6-10 500mL flat bottom flask, respectively adding 1-2 μ L mass percent in flat bottom flask is 5% ammoniacal liquor, places 30min under 65-80 DEG C of condition, then balance 0.5-1h in the environment of 30-45 DEG C;
(2) sample absorption foul smell: 2-4g test specimen and the each 3-5 part of control sample are hung respectively to the flat bottom flask of putting into after described step (1) balance, place 1-3h at 30-45 DEG C; Described test specimen is the knit fabric of processing through air catalyst, and described control sample is common knit fabric;
(3) remaining odorous substance processing: will take out through step (2) test specimen after treatment and control sample, to the tertiary effluent that adds 50mL in described flat bottom flask, jam-pack stopper acutely shakes, and 3-6min shakes once, after 25-45min, measure the content of ammonia in water;
(4) sample solution separation extracting odorous substance, the test specimen and the control sample that in step (3), take out are suspended on respectively in the tool plug conical flask of 3000mL, at 20-25 DEG C, place after 48h, take out test specimen and control sample, put into respectively the iodine flask of the 250mL that fills 50mL absolute ethyl alcohol, under normal temperature, vibrate after 25-45min, measure the content of ammonia in extract;
(5) measure absorbance: get respectively the liquid to be measured that 10mL processes through step (3) and (4), join in color-comparison tube, respectively add again the sodium nitroprusside solution 0.10mL of salicylic acid solution 0.5mL, 0.01g/ml and the liquor natrii hypochloritis 0.10mL of 0.05mol/L of 0.05g/ml, mix, under room temperature, place 1h and generate blue compound, under the wavelength of 697.5nm, measure absorbance with ultraviolet spectrophotometer;
(6) absorbance of measuring according to step (5), the linear equation y=0.0794x-0.0092 of application ammonia solution and absorbance, y is absorbance, x is the content of ammonia, obtains the ammonia concentration of the liquid to be measured of step (3) and step (4).
There is the method except ammonia foul smell performance according to a kind of textile that detects provided by the invention, linear equation described in step (6) is by the ammonium chloride standard solution of configuration 1 μ g/mL, get 0mL, 0.5mL, 1mL, 3mL, 5mL, 7mL, 10mL is in color comparison tube, add respectively tertiary effluent to 10mL, respectively add again the salicylic acid solution 0.5mL of 0.05g/ml, the sodium nitroprusside solution 0.10mL of 0.01g/ml and the liquor natrii hypochloritis 0.10mL of 0.05mol/L, mix, under room temperature, place after 1h, the linear equation y=0.0794x-0.0092 that measures absorbance with ultraviolet spectrophotometer under the wavelength of 697.5nm and obtain, y is absorbance, x is the content of ammonia.
Have the method except ammonia foul smell performance according to a kind of textile that detects provided by the invention, preferably, the knit fabric of processing through air catalyst described in described step (2) is: cotton/to wash=70/30, weight per square meter 183g; Described common knit fabric, described fabric is: cotton/hair 70/30, weight per square meter 183g.
There is the method except ammonia foul smell performance according to a kind of textile that detects provided by the invention, preferably, described test specimen and control sample are washed after 50 times, carrying out described step (1) (2) (3) (4) (5) (6) experiment.
Have the method except ammonia foul smell performance according to a kind of textile that detects provided by the invention, preferably, described step (1) ammoniacal liquor is placed 30-60min under 65-80 DEG C of condition.
Have the method except ammonia foul smell performance according to a kind of textile that detects provided by the invention, preferably, described step (3) the flat bottom flask shake time is 25-45min.
Have the method except ammonia foul smell performance according to a kind of textile that detects provided by the invention, preferably, described step (4) is in the tool plug conical flask of 20-25 DEG C of hanging test sample and control sample in temperature
There is the method except ammonia foul smell performance according to a kind of textile that detects provided by the invention, described air catalyst is a kind of air catalyzer that adopts nanometer technology development, the improvement that specialty is polluted for air ambient, its structure composition be air+catalyst (catalyzer) with become word.Here catalyst refers to the super nanometer scintilla titania (Tio2) with extremely strong oxidability.
According to the present invention, the preparation of detection method odor source ammonia and initial concentration determines, the ammonia solution of getting 1 μ l5% joins in 500mL tool plug flat bottom flask to be placed after 30min under 70 DEG C of environment, in 35 DEG C of environment, place 1h, be gasified totally stable after as the initial concentration of foul smell, measure its absorbance with ultraviolet spectrophotometer.
The detection method ammonia solution linear relationship according to the present invention, by ammonia standard operation solution dilution, obtains the series standard solution of variable concentrations.Pipette respectively the ammonium chloride standard operation solution 0mL, 0.5mL, 1mL, 3mL, 5mL, 7mL, 10mL of 1 μ g/mL in color comparison tube, add respectively tertiary effluent to 10mL.Then respectively add 0.5mL salicylic acid solution; Add again 0.10mL sodium nitroprusside solution and 0.10mL liquor natrii hypochloritis, mix.Under room temperature, place after 1h, under the wavelength of 697.5nm, measure absorbance with ultraviolet spectrophotometer, and taking the concentration of ammonia as horizontal ordinate, absorbance is ordinate mapping.
The detection method according to the present invention, carry out organoleptic examination, in the conical flask that is 500mL at capacity, put into 5.00g test specimen, inject 1 μ L ammonia foul smell with micro syringe, cover tightly rapidly lid, room temperature is placed after 2h, rapidly sample is moved to the conical flask of 3000mL from 500mL conical flask with tweezers, cover tightly lid, room temperature starts test after placing 4h.Test specimen bottle is placed on clean operator's console, after operator's wash hands, put on one's gloves, open conical flask bottle stopper, with tweezers take out sample near nostril, carefully smell the smell of hearing on sample, according to the intensity of smell, sample is carried out to sensory evaluation, record odor strength grade in table 1, sample detection the results are shown in Table 2.
Table 1 odor strength grade
Table 2 organoleptic examination foul smell grade result
| Sample | Before washing | Wash after 50 times |
| Ammonia foul smell grade/level | 3 | 3 |
There is the method except ammonia foul smell performance according to a kind of textile that detects provided by the invention, get and in 6 500mL flat bottom flasks, respectively add 1 μ L ammoniacal liquor (5%), under 70 DEG C of conditions, place 30min, then balance 1h in the environment of 35 DEG C, hang respectively and put into each three parts of 2.50g test specimen and control sample, at 35 DEG C, place 2h, then, test specimen and control sample are taken out, add rapidly 50mL tertiary effluent, jam-pack stopper acutely shakes, and 5min shakes once, measures the content of ammonia in water after 30min.Again sample is hung to the tool plug conical flask of putting into 3000mL, at the lower 48h that places of room temperature (25 DEG C of left and right), take out rapidly test specimen and control sample, put into respectively the iodine flask that fills 50mL absolute ethyl alcohol 250mL, under normal temperature, vibrate after 30min, measure the content of ammonia in extract.
Get 10mL liquid to be measured and add in color-comparison tube, add 0.5mL salicylic acid solution; Add again 0.10mL sodium nitroprusside solution and 0.10mL liquor natrii hypochloritis, mix, under room temperature, place 1h and generate blue compound, under the wavelength of 697.5nm, measure absorbance with ultraviolet spectrophotometer.
There is the method except ammonia foul smell performance according to a kind of textile that detects provided by the invention, 50 tests of sample washing, adopt 5A program in the standard of GB/T8629-2001 " textile test home washings and drying program " that sample is washed after 50 times, the process of the test of repeating step (1)-(6).
There is the method except ammonia foul smell performance according to a kind of textile that detects provided by the invention, by organoleptic examination and instrument testing, textile is removed to ammonia foul smell function and evaluate.
Have the method except ammonia foul smell performance according to a kind of textile that detects provided by the invention, can draw to have well in ammonia foul smell function through the fabric organoleptic examination of air catalyst processing, and anti-clean result is better.
There is the method except ammonia foul smell performance according to a kind of textile that detects provided by the invention, can draw through the more common fabric of fabric instrument testing of air catalyst processing to there is stronger deodorizing effect by foul smell slip result, and anti-clean result is better.
Beneficial effect of the present invention:
Detection textile provided by the invention has the method except ammonia foul smell performance, the method is in closed environment, to add foul smell, allow sample adsorb foul smell, again sample is taken out and is placed under another clean environment, realize the deodorization functions of sample, finally sample is taken out and is placed in extract, residual odorous substance in extraction sample; Evaluation index using the slip of foul smell as textile deodoriging properties; And detect evaluation with the rear anti-washability of washing before comparative sample washing, and this detection method testing result is accurate, and speed is fast, applied range.
Brief description of the drawings
Fig. 1 is ammonia solution of the present invention and absorbance linear relationship chart.
Embodiment
In order to understand better the present invention, further illustrate content of the present invention below in conjunction with embodiment, but the content of invention is not only confined to the following examples.
Detection textile provided by the invention has experimental instrument and equipment and the instrument except the method for ammonia foul smell performance: electronic balance; Automatically the shaking bath of vibration; Ultraviolet spectrophotometer; Electric drying oven with forced convection; Biochemical cultivation case; Oscillator; Tool plug ground flat bottom flask; Volumetric flask; Transfer pipet; Micro syringe; Iodine flask; Tool plug Erlenmeyer flask; Tool mill plug color comparison tube etc.
Detection textile provided by the invention has experiment reagent and the configuration except the method for ammonia foul smell performance
Without ammonia tertiary effluent;
Salicylic acid solution (50g/L): take 10.0g salicylic acid [C6H4 (OH) COOH] and 10.0g sodium citrate (Na3C6O72H2O), add the about 50mL of tertiary effluent, add again 55mL sodium hydroxide solution [C(NaOH)=2mol/L], be diluted with water to 200mL;
Sodium nitroprusside solution (10g/L): take 1.0g sodium nitroprusside [Na2Fe(CN) 5NO2H2O], be dissolved in 100mL tertiary effluent;
Ammonia solution: concentration 25%, analyze pure; Ammonium chloride: standard reagent;
Standard stock solution: take (NH4Cl) of 0.3142g through 105 DEG C of dry 1h, by a small amount of water-soluble solution, move in 100mL volumetric flask, use without ammonia tertiary effluent and be diluted to scale, this solution 1.00mL is containing 1.00mg ammonia;
Standard operation liquid: face the used time, standard stock solution is used without ammonia tertiary effluent and is diluted to 1.00mL containing 1.00 μ m ammonia;
Liquor natrii hypochloritis (NaCIO)=0.05mol/L): get 1mL sodium hypochlorite reagent stoste, by fixed its concentration of iodimetric titration standard.Then use sodium hydroxide solution [C(NaOH)=2mol/L] to be diluted to the solution of 0.05mol/L.
The demarcation of liquor natrii hypochloritis's concentration: take 2.00g potassium iodide (KI) in 250mL iodine flask, add tertiary effluent 50mL and dissolve, add 1.00mL sodium hypochlorite (NaClO) reagent, then add 0.5mL hydrochloric acid solution [50%(V/V)] and shake up, 3min is placed in dark place.The iodine of separating out with sodium thiosulfate standard solution [C(1/2NaS2O3)=0.100mol/L] titration, while being yellow to solution, add the starch indicator (5g/L) of the new preparation of 1mL, continuing to be titrated to blueness just takes off, be terminal, record sodium thiosulfate standard solution volume used, calculate liquor natrii hypochloritis's concentration by formula (1).
C（NaClO）=C（1/2NaS2O3）×V/1.00×2（1）
In formula: C(NaClO): the concentration of sodium hypochlorite reagent, mol/L;
C(1/2NaS2O3): Concentration of Sodium Thiohsulfate Standard Solution, mol/L.
The invention provides a kind of textile that detects and there is the method except ammonia foul smell performance, get in 6 500mL flat bottom flasks and respectively add 1 μ L ammoniacal liquor (5%), under 70 DEG C of conditions, place 30min, then balance 1h in the environment of 35 DEG C, hang respectively and put into each three parts of 2.50g test specimen and control sample, at 35 DEG C, place 2h, then, test specimen and control sample are taken out, add rapidly 50mL tertiary effluent, jam-pack stopper acutely shakes, and 5min shakes once, measures the content of ammonia in water after 30min.Again sample is hung to the tool plug conical flask of putting into 3000mL, at the lower 48h that places of room temperature (25 DEG C of left and right), take out rapidly test specimen and control sample, put into respectively the iodine flask that fills 50mL absolute ethyl alcohol 250mL, under normal temperature, vibrate after 30min, measure the content of ammonia in extract.
Get 10mL liquid to be measured and add in color-comparison tube, add 0.5mL salicylic acid solution; Add again 0.10mL sodium nitroprusside solution and 0.10mL liquor natrii hypochloritis, mix, under room temperature, place 1h and generate blue compound, under the wavelength of 697.5nm, measure absorbance with ultraviolet spectrophotometer.Testing result is in table 3.
Before table 3 washing, remove ammonia performance measurement result
Sample washs 50 tests, adopts 5A program in the standard of GB/T8629-2001 " textile test home washings and drying program " that sample is washed after 50 times, the process of the test of repeating step (1)-(6), and test findings is as following table 4.
Table 4 washs 50 times afterwards except ammonia performance measurement result
Detection textile provided by the invention has the method except ammonia foul smell performance, the method is in closed environment, to add foul smell, allow sample adsorb foul smell, again sample is taken out and is placed under another clean environment, realize the deodorization functions of sample, finally sample is taken out and is placed in extract, residual odorous substance in extraction sample; Evaluation index using the slip of foul smell as textile deodoriging properties; And detect evaluation with the rear anti-washability of washing before comparative sample washing, and this detection method testing result is accurate, and speed is fast, applied range.
Claims (7)
1. detect textile and there is the method except ammonia foul smell performance, comprise the following steps successively:
(1) preparation of ammonia odor source: get 6-10 500mL flat bottom flask, respectively adding 1-2 μ L mass percent in flat bottom flask is 5% ammoniacal liquor, leaves standstill then balance 0.5-1h in the environment of 30-45 DEG C;
(2) sample absorption foul smell: 2-4g test specimen and the each 3-5 part of control sample are hung respectively to the flat bottom flask of putting into after described step (1) balance, place 1-3h at 30-45 DEG C; Described test specimen is the knit fabric of processing through air catalyst, and described control sample is common knit fabric;
(3) remaining odorous substance processing: will take out through step (2) test specimen after treatment and control sample, to the tertiary effluent that adds 50mL in described flat bottom flask, jam-pack stopper acutely shakes, and 3-6min shake once, the content of ammonia in mensuration water;
(4) sample solution separation extracting odorous substance, the test specimen and the control sample that in step (3), take out are suspended on respectively in the tool plug conical flask of 3000mL, place after 48h, take out test specimen and control sample, put into respectively the iodine flask of the 250mL that fills 50mL absolute ethyl alcohol, under normal temperature, vibrate after 25-45min, measure the content of ammonia in extract;
(5) measure absorbance: get respectively the liquid to be measured that 10mL processes through step (3) and (4), join in color-comparison tube, respectively add again the sodium nitroprusside solution 0.10mL of salicylic acid solution 0.5mL, 0.01g/ml and the liquor natrii hypochloritis 0.10mL of 0.05mol/L of 0.05g/ml, mix, under room temperature, place 1h and generate blue compound, under the wavelength of 697.5nm, measure absorbance with ultraviolet spectrophotometer;
(6) absorbance of measuring according to step (5), the linear equation y=0.0794x-0.0092 of application ammonia solution and absorbance, y is absorbance, x is the content of ammonia, obtains the ammonia concentration of the liquid to be measured of step (3) and step (4).
2. a kind of textile that detects according to claim 1 has the method except ammonia foul smell performance, it is characterized in that, linear equation described in step (6) is by the ammonium chloride standard solution of configuration 1 μ g/mL, get 0mL, 0.5mL, 1mL, 3mL, 5mL, 7mL, 10mL is in color comparison tube, add respectively tertiary effluent to 10mL, respectively add again the salicylic acid solution 0.5mL of 0.05g/ml, the sodium nitroprusside solution 0.10mL of 0.01g/ml and the liquor natrii hypochloritis 0.10mL of 0.05mol/L, mix, under room temperature, place after 1h, the linear equation y=0.0794x-0.0092 that measures absorbance with ultraviolet spectrophotometer under the wavelength of 697.5nm and obtain, y is absorbance, x is the content of ammonia.
3. a kind of textile that detects according to claim 1 has the method except ammonia foul smell performance, it is characterized in that, the knit fabric of processing through air catalyst described in described step (2) is: cotton/to wash=70/30, weight per square meter 183g; Described common knit fabric, described fabric is: cotton/hair 70/30, weight per square meter 183g.
4. a kind of textile that detects according to claim 1 has the method except ammonia foul smell performance, it is characterized in that, described test specimen and control sample are washed after 50 times, is carrying out described step (1) (2) (3) (4) (5) (6) experiment.
5. a kind of textile that detects according to claim 1 has the method except ammonia foul smell performance, it is characterized in that, described step (1) ammoniacal liquor is placed 30-60min under 65-80 DEG C of condition.
6. a kind of textile that detects according to claim 1 has the method except ammonia foul smell performance, it is characterized in that, described step (3) the flat bottom flask shake time is 25-45min.
7. a kind of textile that detects according to claim 1 has the method except ammonia foul smell performance, it is characterized in that, described step (4) is in the tool plug conical flask of 20-25 DEG C of hanging test sample and control sample in temperature.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470817A (en) * | 2017-09-08 | 2019-03-15 | 金红叶纸业集团有限公司 | A kind of device and method for assessing deodorizing effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470817A (en) * | 2017-09-08 | 2019-03-15 | 金红叶纸业集团有限公司 | A kind of device and method for assessing deodorizing effect |
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Application publication date: 20140924 |