CN109253980A - A kind of detection method of ceramics coffee cup cleaning property of easy-cleaning - Google Patents
A kind of detection method of ceramics coffee cup cleaning property of easy-cleaning Download PDFInfo
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- CN109253980A CN109253980A CN201811257674.4A CN201811257674A CN109253980A CN 109253980 A CN109253980 A CN 109253980A CN 201811257674 A CN201811257674 A CN 201811257674A CN 109253980 A CN109253980 A CN 109253980A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 90
- 238000004140 cleaning Methods 0.000 title claims abstract description 58
- 235000013353 coffee beverage Nutrition 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000002835 absorbance Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000001802 infusion Methods 0.000 claims abstract description 19
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 238000012360 testing method Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000003670 easy-to-clean Effects 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 235000021539 instant coffee Nutrition 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 238000011156 evaluation Methods 0.000 abstract description 9
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000008033 biological extinction Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention is a kind of detection method of ceramic coffee cup cleaning property of easy-cleaning.This method reflects the variation of its concentration using coffee as raw material, by infusion absorbance A value in measurement ceramic teacup, to realize the complexity for judging the raw dirt of ceramic coffee cup.The present invention is directed to the pickup feature of ceramic cup, the blank of the easy clean property test evaluation method of ceramic cup is filled up, the complexity of its life dirt is judged by the variable quantity Q of Nescafe solution absorbance value in measurement ceramic cup, and the evaluation criterion for giving easy clean ceramic cup is Q >=8%.
Description
Technical field
The present invention relates to a kind of detection methods of ceramic cup cleaning property of easy-cleaning, belong to the performance detection side in ceramic product field
Method.
Background technique
Human health is not only influenced using detergent when cleaning ceramic product, is also polluted the environment, therefore Liang Jinsheng et al.
The concept that experiment proposes the easy clean property of ceramics is passed through, it may be assumed that in normal conditions of use, do not handle by detergent and external force is strong
Row is cleaned, and only relying on ceramic Surface Physical Chemistry property itself and the interaction between environment can make pollutant be not easy to stick
The property of attached and spontaneous disengaging ceramic surface；At the same time he also simulation carries out easily domestic ceramics as pollutant with oleic acid
Clean performance evaluation, but the oil in life can not represent the pollutant on all ceramic ware for daily uses, so that for ceramic cup
The cleaning property of easy-cleaning evaluation method of inner surface becomes vacancy, example: a kind of common ceramic cup inner surface pollutant --- coffee dirt
It gradually attracts people's attention, needs a kind of cleaning property of easy-cleaning proposition detection method with coffee dirt as pollutant to ceramic cup
And judgment criteria.
Summary of the invention
It is an object of the invention to for deficiency existing for current techniques, provide a kind of ceramics coffee cup cleaning property of easy-cleaning
Detection method.This method reflects the change of its concentration by infusion absorbance A value in measurement ceramic teacup using coffee as raw material
Change, to realize the complexity for judging the raw dirt of ceramic coffee cup.
The technical solution of the present invention is as follows:
A kind of detection method of ceramics coffee cup cleaning property of easy-cleaning, comprising the following steps:
(1) it inside cleaning ceramic cup, then dries up, 10~30min is placed at 50~100 DEG C；
(2) it configures infusion and measures its absorbance value, be denoted as A0；
(3) above-mentioned matched infusion is put into quasi- ceramic cup to be measured；
(4) ceramic cup for filling infusion is put into baking oven, 1.5~2.5h is stood at 75~85 DEG C；
(5) infusion walked in extraction measures its absorbance value, is denoted as A1；
(6) percentage of absorbance value increment at the appointed time is calculated:
In formula: Q- absorbance value increment, A0Initial absorbance value, A1Final absorbance value；
It is easy to clean: Q >=8%；
It is not easy to clean: Q < 8%.
The test method further includes following steps:
(7) above step (1)-(6) are repeated in, and are continuously measured five times.Maximum value and minimum value are removed, will be remained
Under numerical value three times summation be averaged.
In the step (1) the step of cleaning ceramic cup are as follows: use the Na of 2~6wt% first2CO3Aqueous cleaning,
Then it is rinsed 3~8 times with clear water again.
The ceramic cup is standard ceramic cup, and capacity is 345~355ml, and interior diameter is 78~82mm, and surface area is
240~250cm2。
The pure water or mineral water that water used is sold by market when the described configuration infusion, coffee are sold by market
Instant coffee.
In addition, electronic balance precision used in weighing is 0.0001g, volumetric flask specification is 500ml ± 0.5ml.
The infusion concentration is 0.2mg/ml.
The instrument for measuring infusion absorbance value is ultraviolet specrophotometer (model: the general analysis TU-19 series in Beijing)；Coffee
The characteristic absorption peak wavelength of coffee solution is set as 600nm.
Stipulated time described in step (6) is 120min.
The invention has the benefit that
The present invention is directed to the pickup feature of ceramic cup, provides a kind of cleaning property of easy-cleaning detection method of ceramic cup, fills up
The blank of the easy clean property test evaluation method of ceramic cup.This method passes through Nescafe solution absorbance value in measurement ceramic cup
Variable quantity Q come the evaluation criterion for judging the complexity of its life dirt, and giving easy clean ceramic cup be Q >=8%.
Specific embodiment
Below with reference to example, the present invention is further illustrated.
The theoretical basis of this method is Lambert-Beer law, and when one timing of lambda1-wavelength, the absorbance of solution is
The concentration of extinction material and function, that is, A=ε lC of absorbing medium thickness, wherein A is solution absorbance to be measured, and ε is ratio
Coefficient, l are absorbing medium thickness, and C is extinction material concentration.Wherein with the difference of the absorbance value A of infusion in ceramic cup
To reflect indirectly the situation of change of concentration.Infusion absorbance in ceramic cup is bigger, shows the substance of ceramic wall of cup absorption
It is fewer, it may be assumed that ceramic cup is easy to clean；Conversely, the infusion absorbance in ceramic cup is smaller, show the object of ceramic wall of cup absorption
Matter is more, it may be assumed that ceramic cup is not easy to clean.
The 1+2 original flavor instant coffee drink that the Nescafe that following embodiment uses is sold by market.
Following embodiment is only experimental verification, and protection scope is not only limitted to this.
Embodiment 1
The detection method of ceramics cup cleaning property of easy-cleaning of the present invention follows these steps to carry out:
(1) ceramic cup product specification to be measured: rim of a cup interior diameter 80mm, the high 95mm of cup；Surface area is 240~250cm2；
(2) Na of 4wt% is used2CO3It after aqueous cleaning ceramic cup internal surface area, then is rinsed well with clear water, is rinsed 4 times,
Then it with the remaining droplet on electric-heating air blower drying cup inner surface, is finally putting into 80 DEG C of baking oven and dries 20min；
(3) Nescafe solution is configured.It weighs the Nescafe powder of 0.1000g and is put into 500ml volumetric flask, then
80 DEG C of NongFuShanQuan water is poured into volumetric flask and is sufficiently shaken up spare；
(4) configured Nescafe solution taking-up 4ml is measured into its absorbance value A0；
(5) it separately takes out 280ml solution to pour into ceramic cup to be measured, it is quiet to be and then put into 80 DEG C of oven interior middle position
Set 2h；
(6) after reaching the stipulated time, 5ml is accurately taken out with liquid-transfering gun, measures Nescafe solution absorbance in liquid-transfering gun
Value A1；
(7) percentage in stipulated time 120min internal absorbance value increment is calculated:
(8) the above experimental procedure (1)-(7) are repeated in, and continuously measure five data, remove maximum value therein and
Minimum value obtains: 10.71%, 10.08%, 9.62%, the numerical value three times being left behind summation is averaged are as follows: 10.14%.
(9) will calculate resulting absorbance value increment: 10.14% according to standard determination is easy to clean.
Comparative example 1:
Ceramic coffee in embodiment 1 in step (1) is carried out to related cleaning property of easy-cleaning Indexs measure by other means to test
Card:
The easy clean property detection of GB/T 31859-2015 domestic porcelain according to national standards of the surface and oil contaminant residual volume of ceramic utensil
Method is detected, and ceramic utensil glossiness and Determination of Hardness are measured according to GB 3295-1982 domestic ceramics device glossiness respectively
Method and GB 3297-1982 domestic ceramics device glaze paint Vickers hardness measuring method are measured, ceramic utensil profile measurement according to
GB 3302-2009 is carried out.
Finally measuring and testing the glossiness of ceramic cup used is 122.86Gs, and hardness 7.127Gpa, greasy dirt residual volume A are
0.47g/m2, belong to easy to clean, be consistent with evaluation criterion obtained in embodiment 1.
Embodiment 2
The detection method of ceramics cup cleaning property of easy-cleaning of the present invention follows these steps to carry out:
(1) ceramic cup product specification to be measured: rim of a cup interior diameter 80mm, the high 95mm of cup, surface area are 240~250cm2；
(2) Na of 5wt% is used2CO3It after aqueous cleaning ceramic cup internal surface area, then is rinsed well with clear water, then electricity consumption
Hot hair dryer dries up the remaining droplet on cup inner surface, is finally putting into 90 DEG C of baking oven and dries 15min；
(3) Nescafe solution is configured.It weighs the Nescafe powder of 0.1000g and is put into 500ml volumetric flask, then
85 DEG C of NongFuShanQuan water is poured into volumetric flask and is sufficiently shaken up spare；
(4) configured Nescafe solution taking-up 4ml is measured into its absorbance value A0；
(5) it separately takes out 280ml solution to pour into ceramic cup to be measured, it is quiet to be and then put into 75 DEG C of oven interior middle position
Set 2.5h；
(6) after reaching the stipulated time, 5ml is accurately taken out with liquid-transfering gun, measures Nescafe solution absorbance in liquid-transfering gun
Value A1；
(7) percentage in stipulated time 120min internal absorbance value increment is calculated:
(8) the above experimental procedure (1)-(7) are repeated in, and continuously measure five data, remove maximum value therein and
Minimum value obtains: 5.05%, 5.81%, 3.14%, by this, numerical value summation is averaged three times are as follows: 4.67%.
(9) will calculate resulting absorbance value increment: 4.67% according to standard determination is not easy to clean.
Comparative example 2:
Ceramic coffee tool in embodiment 1 in step (1) is subjected to related cleaning property of easy-cleaning Indexs measure by other means
Verifying:
The easy clean property detection of GB/T 31859-2015 domestic porcelain according to national standards of the surface and oil contaminant residual volume of ceramic utensil
Method is detected, and ceramic utensil glossiness and Determination of Hardness are measured according to GB 3295-1982 domestic ceramics device glossiness respectively
Method and GB 3297-1982 domestic ceramics device glaze paint Vickers hardness measuring method are measured, ceramic utensil profile measurement according to
GB 3302-2009 is carried out.
Finally measuring and testing the glossiness of ceramic cup used is 105.20Gs, and hardness 7.737Gpa, greasy dirt residual volume A are
1.02g/m2.(in the detection method in conjunction with patent CN1699956A easy-cleaning property of easy-cleaning antibiotic ceramics, ceramic product cleaning property of easy-cleaning
Judgment criteria: unit area greasy residues amount A≤0.5g/m2) belong to it is not easy to clean, with evaluation criterion obtained in embodiment 1
It is consistent.
Embodiment 3
The detection method of ceramics cup cleaning property of easy-cleaning of the present invention follows these steps to carry out:
(1) ceramic cup product specification to be measured: rim of a cup interior diameter 80mm, the high 95mm of cup, surface area are 240~250cm2；
(2) Na of 6wt% is used2CO3It after aqueous cleaning ceramic cup internal surface area, then is rinsed well with clear water, then electricity consumption
Hot hair dryer dries up the remaining droplet on cup inner surface, is finally putting into 80 DEG C of baking oven and dries 30min；
(3) Nescafe solution is configured.It weighs the Nescafe powder of 0.1000g and is put into 500ml volumetric flask, then
75 DEG C of NongFuShanQuan water is poured into volumetric flask and is sufficiently shaken up spare；
(4) configured Nescafe solution taking-up 5ml is measured into its absorbance value A0；
(5) it separately takes out 280ml solution to pour into ceramic cup to be measured, it is quiet to be and then put into 85 DEG C of oven interior middle position
Set 1.5h；
(6) after reaching the stipulated time, 5ml is accurately taken out with liquid-transfering gun, measures Nescafe solution absorbance in liquid-transfering gun
Value A1；
(7) percentage in stipulated time 120min internal absorbance value increment is calculated:
(8) the above experimental procedure (1)-(7) are repeated in, and continuously measure five data, remove maximum value therein and
Minimum value obtains: 3.23%, 5.04%, 4.18%, by this, numerical value summation is averaged three times are as follows: 4.15%.
(9) will calculate resulting absorbance value increment: 4.15% according to standard determination is not easy to clean.
Comparative example 3:
Ceramic coffee tool in embodiment 1 in step (1) is subjected to related cleaning property of easy-cleaning Indexs measure by other means
Verifying:
The easy clean property detection of GB/T 31859-2015 domestic porcelain according to national standards of the surface and oil contaminant residual volume of ceramic utensil
Method is detected, and ceramic utensil glossiness and Determination of Hardness are measured according to GB 3295-1982 domestic ceramics device glossiness respectively
Method and GB 3297-1982 domestic ceramics device glaze paint Vickers hardness measuring method are measured, ceramic utensil profile measurement according to
GB 3302-2009 is carried out.
Finally measuring and testing the glossiness of ceramic cup used is 98.34Gs, and hardness 7.984Gpa, greasy dirt residual volume A are
0.79g/m2, belong to not easy to clean, be consistent with evaluation criterion obtained in embodiment 1.
Unaccomplished matter of the present invention is well-known technique.
Claims (7)
1. a kind of detection method of ceramics coffee cup cleaning property of easy-cleaning, it is characterized in that method includes the following steps:
(1) it inside cleaning ceramic cup, then dries up, 10~30min is placed at 50~100 DEG C；
(2) it configures infusion and measures its absorbance value, be denoted as A0；
(3) above-mentioned matched infusion is put into quasi- ceramic cup to be measured；
(4) ceramic cup for filling infusion is put into baking oven, 1.5~2.5h is stood at 75~85 DEG C；
(5) infusion walked in extraction measures its absorbance value, is denoted as A1；
(6) percentage of absorbance value increment at the appointed time is calculated:；
In formula: Q- absorbance value increment, A0Initial absorbance value, A1Final absorbance value；
It is easy to clean: Q >=8%；
It is not easy to clean: Q < 8%.
2. the detection method of ceramics coffee cup cleaning property of easy-cleaning as described in claim 1, it is characterized in that survey described in this method
Method for testing further includes following steps:
Above step (1)-(6) are repeated in, and are continuously measured five times, maximum value and minimum value, three will be left behind are removed
Secondary numerical value summation is averaged.
3. the detection method of ceramics coffee cup cleaning property of easy-cleaning as described in claim 1, it is characterized in that in the step (1)
The step of cleaning ceramic cup are as follows: use the Na of 2~6wt% first2CO3Then aqueous cleaning is rinsed 3 ~ 8 times with clear water again.
4. the detection method of ceramics coffee cup cleaning property of easy-cleaning as described in claim 1, it is characterized in that the ceramic cup is
Standard ceramic cup, capacity are 345~355ml, and interior diameter is 78~82mm, and surface area is 240~250cm2。
5. the detection method of ceramics coffee cup cleaning property of easy-cleaning as described in claim 1, it is characterized in that the configuration coffee
The pure water or mineral water that water used is sold by market when solution, coffee sell instant coffee by market.
6. the detection method of ceramics coffee cup cleaning property of easy-cleaning as described in claim 1, it is characterized in that the infusion
Concentration is 0.2mg/ml, and the affiliated stipulated time is 120min.
7. the detection method of ceramics coffee cup cleaning property of easy-cleaning as described in claim 1, it is characterized in that measurement infusion is inhaled
The instrument of shading value is ultraviolet specrophotometer；The characteristic absorption peak wavelength of infusion is set as 600nm.
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| CN201811257674.4A CN109253980B (en) | 2018-10-26 | 2018-10-26 | Method for detecting easy-to-clean performance of ceramic coffee cup |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2578496A (en) * | 2018-10-26 | 2020-05-13 | Univ Hebei Technology | Method for detecting easy-cleaning property of ceramic |
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Cited By (2)
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|---|---|---|---|---|
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| Publication number | Publication date |
|---|---|
| CN109253980B (en) | 2021-03-12 |
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