CN109142182A - Infiltration rate, diffusion length, the test method of leakage and reverse osmosis amount of absorbent sanitary product - Google Patents
Infiltration rate, diffusion length, the test method of leakage and reverse osmosis amount of absorbent sanitary product Download PDFInfo
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- 238000001764 infiltration Methods 0.000 title claims abstract description 29
- 230000008595 infiltration Effects 0.000 title claims abstract description 29
- 238000009792 diffusion process Methods 0.000 title claims abstract description 26
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 23
- 238000010998 test method Methods 0.000 title claims abstract description 21
- 239000002250 absorbent Substances 0.000 title claims abstract description 13
- 230000002745 absorbent Effects 0.000 title claims abstract description 13
- 238000012360 testing method Methods 0.000 claims description 28
- 239000012085 test solution Substances 0.000 claims description 22
- 239000000243 solution Substances 0.000 claims description 20
- 238000004364 calculation method Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000035479 physiological effects, processes and functions Effects 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 17
- 238000001514 detection method Methods 0.000 abstract description 11
- 238000012827 research and development Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 11
- 210000002700 urine Anatomy 0.000 description 10
- 239000002504 physiological saline solution Substances 0.000 description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000013100 final test Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 206010036018 Pollakiuria Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/0866—Sorption
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
The present invention relates to absorbent sanitary product technical field of quality detection, and in particular to a kind of infiltration rate of absorbent sanitary product, diffusion length, the test method of leakage and reverse osmosis amount.The method of the present invention includes being loaded three times, and record its soak time and diffusing lines respectively；Then by the way that under pressurized state, the weight difference of the filter paper on sample bottom and surface obtains the leakage and reverse osmosis amount of sample.The method of the present invention is mainly used for paper diaper, nappy, the detection for drawing the common indexs of absorbent sanitary products such as trousers, the scene of paper diaper is used for simulating baby, to reflect the actual use performance of baby paper diaper, scientific and effective detection method is provided for the Quality Detection of baby paper diaper and research and development.
Description
Technical field
The present invention relates to absorbent sanitary product technical field of quality detection, and in particular to a kind of absorbent sanitary product
Infiltration rate, diffusion length, the test method of leakage and reverse osmosis amount.
Background technique
Often hearing has mothers to complain, and with paper diaper leakage of urine and red hip phenomenon occur for baby.Why paper diaper
It is qualified to detect, and why baby in use, there is also so more problems！The detection side of this and paper diaper in fact
Method is related.Baby paper diaper industry generally uses in standard GB/T/T28004-2011 the test method of paper diaper at present
Method or carvel built.In the state of tiling, liquid is easy to flow backwards paper diaper, causes infiltration rate fast, diffusion length is long, instead
Milliosmolarity is small, this is different from the state of actual use, cannot really reflect the basic performance of paper diaper.Paper diaper test at present makes
Liquid, not Uniform provisions, some are also using tap water, and test solution in standard GB/T/T28004-2011 and be
0.9% sodium chloride solution is not prescribed by its temperature, and different temperatures has larger impact to infiltration rate, therefore the data tested out are not
It can really reflect the performance of paper diaper.At present paper diaper test liquid feeding number and time interval, generally by standard GB/T/
T28004-2011 is using liquid feeding twice, and every minor tick five minutes, this may differ by very in actual use with paper diaper
Far, cause the data tested out without reference to meaning.The size of liquid-adding device bore has significant effect test infiltration rate,
Therefore it needs to design suitable caliber size according to the speed of infant urine.At present many enterprises to the leakages of paper diaper not why
Concern, this ventilative situation that can reflect out paper diaper, exactly can reflect out the quality of paper diaper in fact.
Summary of the invention
In consideration of it, it is necessary to provide a kind of infiltration rate of absorbent sanitary product, diffusion length, infiltration regarding to the issue above
The test method of leakage quantity and reverse osmosis amount.This method is mainly used for paper diaper, nappy, draws the normal of the absorbent sanitary products such as trousers
The detection for seeing index, for simulating user's use state, to more accurately measure each close under real use state
Item index.
The present invention is achieved by the following technical solutions:
A kind of infiltration rate of absorbent sanitary product, diffusion length, the test method of leakage and reverse osmosis amount are specific to walk
Suddenly include:
1. measuring the length of sample, and draw its central point；
2. sample is placed in U-type groove, it is overlapped its sample central point and U-type groove central point；
3. adjusting hopper level；
4. test solution is added to test sample in three times, each test sample is recorded respectively and fully absorbs test solution
Time, and the diffusing lines of test solution every time are drawn respectively.
5. taking out sample to be placed in the filter paper several layers that known quality is W1, the filter for being W2 by known quality after a period of time
Paper several layers are overlying on the sample, and pressurize after a period of time on filter paper, remove briquetting and filter the pressurization of standard briquetting
Paper weighs the total weight that pressurization is placed on sample or more filter paper, respectively W1 ' and W2 ' respectively；
6. calculating leakage (W1 '-W1) and reverse osmosis amount (W2 '-W2)；Survey calculation diffusion length；With the arithmetic of 5 samples
For average value as final testing result, weight is accurate to 0.1g, and length is accurate to 1mm.
Further, the step is 3. middle adjusts hopper level concrete operations are as follows: makes the central point and sample of its under shed
The vertical range on surface is 5mm-10mm, and the opening of funnel should adjust as needed funnel discharge outlet to be measured towards operator
The position in sample levels direction.The different testing requirements as needed that refer to baby's men and women paper diaper that adjust: treasure for Man treasured
Discharge outlet adjusts at away from central point 4cm, and close to one end of frontal waist plaster；Treasure for woman treasured discharge outlet is then in paper diaper central point.
Further, the concrete operations of the step 4. are as follows:
4. a certain amount of test solution a, is packed into funnel, funnel section door is opened rapidly to maximum, sample is recorded and fully absorbs
The time of solution, i.e. first time infiltration rate (S1) are tested, and draws the first time diffusing lines of test solution on sample；
4. b, the test solution with 4. a equivalent is added second, funnel section door is opened rapidly to maximum, it is complete to record sample
The time of test solution, i.e. second of infiltration rate (S2) are absorbed, and draws second of diffusing lines for testing solution on sample；
4. c, the test solution with 4. b equivalent is added in third time, funnel section door is opened rapidly to maximum, it is complete to record sample
The time of test solution, i.e. third time infiltration rate (S3) are absorbed, and draws third time diffusing lines on sample.
Further, the test solution of the step 4. is 0.9% physiological saline.
Further, the absorbent sanitary product is infant diaper or diaper.
Further, the step is 4. middle tests solution additional amount are as follows: 30-80ml；Specific sample size presses commercially available quotient
The model of product: urine pants S/M/L or more, successively plus 40/60/80ml；Diaper size S/M/L or more, successively plus 30/40/
50ml。
Further, the step 4. in the initial temperature of solution to be measured be 30 DEG C.
Further, 4. the step starts picture diffusing lines when 6min in a.
Further, when 10min, by the step, 4. b carries out second of solution addition to be measured；Start when 16min
Draw diffusing lines.
Further, it in 20min, is added according to the step solution to be measured that 4. c carries out third time；It is drawn after 26min
Diffusing lines.
Further, it after 27min, takes out sample and carries out the operation of step 5..
Further, the step 5. in be located at the following filter paper of sample be the filter paper that diameter is 230mm, include paper completely
Urine pants area；The filter paper that filter paper positioned at print top is diameter 110mm.
Further, the step 5. in, after sample is placed on filter paper, filter paper and briquetting is placed in sample after being spaced 30min
On product.By liquid feeding three times, the absorption of 30min, the absorption of sample has reached saturation, can detecte out the quality quality of paper diaper,
As reverse osmosis amount is exceeded, during actual use, it may leakage of urine.
Further, the step 5. in, standard briquetting pressing time be 1min.
Further, the step 6. in diffusion length measurement operation are as follows: sample natural horizontal is straightened, measurement distinguish
Measure first, second and third diffusion length；The diffusion length refers to absorb test solution every time after between the diffusing lines of both ends
Length.
Further, method of the present invention can be used for the moisture barrier of absorbent article, surface layer, core under paper diaper
Seep the influence of infiltration rate, diffusion length, leakage and reverse osmosis amount.
The invention has the advantages that:
The method of the present invention is suitable for baby men and women and tests structure, is used in the state of U-shaped weight bearing (no weight bearing), every wet
The influence of layer, surface layer, core to lower the infiltration infiltration rate, diffusion length, leakage and reverse osmosis amount of paper diaper.Wherein moisture barrier,
Surface layer and core all need to draw a design into finished product, and using unitary variant, contrast properties data obtain the superiority and inferiority of different materials.
The U-type groove of this test method can according to need freedom according to baby ergonomic designs, the leakage fluid dram of funnel
Adjusting position sufficiently simulates the state of baby paper diaper actual use, to test infiltration rate, the diffusion length of baby paper diaper
Degree, leakage and reverse osmosis amount；To reflect the actual use performance of baby paper diaper, be baby paper diaper Quality Detection and
Research and development provide scientific and effective detection method
Detailed description of the invention
Fig. 1 is that each urine volume maximum value (g) of baby and minimum value (g) count histogram.
Specific embodiment
Technical solution problem to be solved, the technical solution of use and reach beneficial in order to better illustrate the present invention
Effect is further described now in conjunction with specific embodiment.It is worth noting that technical solution of the present invention is including but not limited to following
Embodiment.
Particular technique or condition are not specified in the embodiment of the present invention, according to the literature in the art described technology or
Condition is carried out according to product description.Reagents or instruments used without specified manufacturer, being can be by commercially available etc.
The conventional products that approach obtains.
Infiltration rate, diffusion length, leakage and the reverse osmosis amount of the method test baby paper diaper of the invention of embodiment one
1, purpose:
The method of the present invention is used to test in the state of U-shaped weight bearing (no weight bearing), and moisture barrier, surface layer, core are to paper diaper
Lower infiltration infiltration rate, diffusion length, leakage and reverse osmosis amount influence.
2, the scope of application:
This test method is suitable for paper diaper/piece, trousers etc. are drawn in drawing.
3, Preparatory work of experiment:
3.1 experimental tool
Table 1
| Title | Specification |
| U-type groove tester | / |
| Qualitative filter paper | Neutral 110mm |
| Ballast iron block | 1.2KG |
| Separatory funnel | Commonly (flow velocity 7s-9s) |
| Experiment frame | Commonly |
| Beaker | 100mL |
| Stopwatch | Accuracy 0.01s |
| Qualitative filter paper | Neutral 230mm |
The configuration of 3.2 physiological saline
0.9% sodium chloride solution, the pure water of every 1000mL are added 9.0g sodium chloride and are formulated.
3.3 liquid feeding standards
It is 38,77,99 and 132g by the average discharge value that Fig. 1 can calculate S, M, L and XL code, is urinated from the other paper of different codes
Trousers each liquid volume added S:40, M:60, L and XL:80, it is overall corresponding, and total liquid volume added S:120, M:180, L and XL three times:
240, it is totally corresponding with each urine volume maximum value of baby.
Table 2 tests liquid volume added
3.4 sample detection
Baby paper diaper infiltration rate, diffusion length, the U-shaped test method of leakage and reverse osmosis amount, comprising the following steps:
1. measuring the length of sample core with ruler, and draw its central point.
2. sample is sticked in the U-type groove for being covered with magic hook, it is overlapped its core-center point and U-type groove central point.
3. adjusting hopper level, make vertical range 7mm of the central point of its under shed away from specimen surface, the opening of funnel is answered
Towards operator, position of the funnel discharge outlet on baby paper diaper is adjusted as needed.
4. a with test twice of funnel of solution rinse, then with graduated cylinder measure specified amount (baby diaper size S/M/L or more,
Successively plus 40/60/80ml, baby diapers size S/M/L or more, physiological saline (0.9%, 30 successively plus 30/40/50)
DEG C), funnel is poured into, rapidly opening funnel section door to maximum, while pressing manual time-keeping, record sample fully absorbs physiological saline
Time, i.e. first time infiltration rate (s), when 6min, draw diffusing lines；
4. when b 10min, the physiological saline of second of addition equivalent is opened rapidly funnel section door to maximum, is pressed simultaneously
Manual time-keeping, record sample fully absorb time of physiological saline, i.e. second of infiltration rate (s), draw diffusion after 16min
Line；
4. when c 20min, the physiological saline of equivalent is added in third time, funnel section door is opened rapidly to maximum, is pressed simultaneously
Manual time-keeping, record sample fully absorb the time of physiological saline, i.e. third time infiltration rate (s), draw diffusion after 26min
Line；
5. after 27min, taking out sample and being placed on the diameter of known quality is in 110mm filter paper several layers, after 30min
The diameter 110mm filter paper several layers and standard briquetting of known quality are pressurizeed on filter paper, timing is restarted, pressurize 1min when
Briquetting and filter paper are removed, the total weight of filter paper after pressurization is weighed.
6. the reverse osmosis amount of sample indicates that the leakage of sample is with sample with of poor quality before and after specimen surface filter paper test
Bottom filter paper test before and after of poor quality indicate.Using the arithmetic mean of instantaneous value of 5 samples as final testing result, it is accurate to
0.1g。
7. the sample natural horizontal tested is straightened, first, second and third diffusion length is measured in measurement respectively, with 5
The arithmetic mean of instantaneous value of bar sample is accurate to 1mm as final testing result.
Two the method for the present invention of embodiment and plate method compare
Prepare 10 parts of paper diaper core samples of XL size, 5 parts are experimental group, carry out U-shaped state according to the method for the present invention
Lower test, another 5 parts are contrast groups, also according to operation of the present invention method, but are tested using flat condition.Each group indices difference
For the average value of 5 parts of samples.As a result such as:
Table 3
| Test item | Unit | U-shaped test result | Plate test result | Difference |
| First time soak time | Sec | 24.91 | 14.68 | 10.23 |
| Second of soak time | Sec | 28.21 | 15.66 | 12.55 |
| Third time soak time | Sec | 88.92 | 15.17 | 73.75 |
| First time diffusion length | mm | 193 | 261 | -68 |
| Second of diffusion length | mm | 216 | 267 | -51 |
| Third time diffusion length | mm | 252 | 302 | -50 |
| Reverse osmosis amount | g | 15.67 | 9.89 | 5.78 |
| Leakage | g | 0.1 | 0 | 0.1 |
Due to the form under U-shaped state simulation use state, making sample, there are a degree of extruding and height, therefore its
Each soak time is longer than flat condition, and diffusion velocity is slowly and flat condition, reverse osmosis amount can also be greater than flat condition, this is more
Close to the result parameter of use state.
It can be seen that the performance indicator difference detected with different test methods is very big by above-mentioned test result, plate is surveyed
It is qualified that examination may result in paper diaper detection, however in use may leakage of urine, the data detected and it is practical not
Symbol, this just needs us and detects using more scientific U-shaped test method the performance of paper diaper.
The products such as urine pants, diaper in the market, be not in order to which user's urine of every row is just changed primary and designs,
Certain capacity is often had, is replaced again for a period of time for user, will not urinate and once just reach the capacity, and begins with infiltration
Out with reverse osmosis phenomenon, therefore do not need every time absorb test solution after survey respectively its exudation and reverse osmosis parameter, as one can imagine, initially
The measured exudation of liquid feeding and reverse osmosis parameter have no practical reference significance, the reference that can not be assessed as product real quality, instead
Increase testing cost.Micturition frequency and interval time of the method for the present invention according to different phase user, give optimization
The parameters such as time, liquid volume added, it will be apparent that closer to the parameter of real use state.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of infiltration rate of absorbent sanitary product, diffusion length, the test method of leakage and reverse osmosis amount, feature exist
In specific steps include:
1. measuring the length of sample, and draw its central point；
2. sample is placed in U-type groove, it is overlapped its sample central point and U-type groove central point；
3. adjusting hopper level and position；
4. in three times to test sample be added test solution, record respectively each test sample fully absorb test solution when
Between, and the diffusing lines of test solution every time are drawn respectively；
5. taking out sample to be placed in the filter paper several layers that known quality is W1, if the filter paper for being W2 by known quality after a period of time
Dried layer is overlying on the sample, and pressurizes after a period of time on filter paper, remove briquetting and filter paper the pressurization of standard briquetting, point
Also known as amount, which is pressurizeed, is placed on the total weight of sample or more filter paper, respectively W1 ' and W2 '；
6. calculating leakage (W1 '-W1) and reverse osmosis amount (W2 '-W2)；Survey calculation diffusion length.
2. test method according to claim 1, which is characterized in that the step is 3. middle to adjust hopper level concrete operations
Are as follows: make the central point of its under shed and the vertical range 5mm-10mm of sample surfaces, the opening of funnel should be towards operator, root
According to needing to adjust position of the funnel discharge outlet above sample to be tested.
3. test method according to claim 1, which is characterized in that the concrete operations of the step 4. are as follows:
4. a certain amount of test solution a, is packed into funnel, funnel section door is opened rapidly to maximum, sample is recorded and fully absorbs test
The time of solution, i.e. first time infiltration rate (S1), and the first time diffusing lines for testing solution are drawn on sample；
4. b, the test solution with 4. a equivalent is added second, funnel section door is opened rapidly to maximum, sample is recorded and fully absorbs
It tests the time of solution, i.e. second of infiltration rate (S2), and draws second of diffusing lines of test solution on sample；
4. c, the test solution with 4. b equivalent is added in third time, funnel section door is opened rapidly to maximum, sample is recorded and fully absorbs
The time of solution, i.e. third time infiltration rate (S3) are tested, and draws third time diffusing lines on sample.
4. test method according to claim 1, which is characterized in that the test solution of the step 4. is 0.9% physiology
Salt water.
5. test method according to claim 1, which is characterized in that the step is 4. middle to test solution additional amount are as follows: 30-
80ml。
6. test method according to claim 1, which is characterized in that the step 4. in the temperature of solution to be measured be 30
℃。
7. test method according to claim 3, which is characterized in that 4. the step is drawn in a when 6min expands for the first time
Loose wire.
8. test method according to claim 3, which is characterized in that when 10min, by the step, 4. b carries out second
Secondary solution addition to be measured；Start picture diffusing lines when 16min.
9. test method according to claim 3, which is characterized in that in 20min, according to step, 4. c carries out third
Secondary solution addition to be measured；Diffusing lines are drawn after 26min.
10. test method according to claim 1, which is characterized in that the step 5. in, after sample is placed on filter paper,
Filter paper and briquetting are placed on sample after the 30min of interval.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455696A (en) * | 2019-08-15 | 2019-11-15 | 天津海关工业产品安全技术中心 | A kind of children's paper diaper functionality assessment method |
| CN112326536A (en) * | 2021-01-06 | 2021-02-05 | 南京沃智仪器科技有限公司 | Urine is not wet permeability detection device |
| CN112834391A (en) * | 2020-12-30 | 2021-05-25 | 宜兴丹森科技有限公司 | Method for analyzing relevance between water-absorbent resin absorption capacity and paper diaper rewet |
| CN113514369A (en) * | 2021-07-22 | 2021-10-19 | 福建恒安集团有限公司 | Method for testing service performance of disposable sanitary product |
| CN113624633A (en) * | 2021-08-02 | 2021-11-09 | 安畑生物科技江苏有限公司 | Detection apparatus for health supplies reverse osmosis and absorption |
| CN115054440A (en) * | 2022-06-10 | 2022-09-16 | 李璐阳 | Paper diaper and processing method thereof |
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