CN111189974A - Method for evaluating moisture-proof and moisture-retaining performance of package - Google Patents
Method for evaluating moisture-proof and moisture-retaining performance of package Download PDFInfo
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- CN111189974A CN111189974A CN202010015602.XA CN202010015602A CN111189974A CN 111189974 A CN111189974 A CN 111189974A CN 202010015602 A CN202010015602 A CN 202010015602A CN 111189974 A CN111189974 A CN 111189974A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000000694 effects Effects 0.000 claims abstract description 26
- 238000004806 packaging method and process Methods 0.000 claims abstract description 16
- 230000014759 maintenance of location Effects 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000005022 packaging material Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 238000011156 evaluation Methods 0.000 claims description 8
- 238000011067 equilibration Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 238000009792 diffusion process Methods 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000000123 paper Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 11
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000004458 analytical method Methods 0.000 abstract description 2
- 235000019504 cigarettes Nutrition 0.000 description 8
- 238000012856 packing Methods 0.000 description 4
- 241000208125 Nicotiana Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 2
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000001035 drying Methods 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
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0078—Testing material properties on manufactured objects
- G01N33/0081—Containers; Packages; Bottles
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Packages (AREA)
Abstract
The invention belongs to the technical field of packaging, and particularly relates to a method for evaluating moisture resistance and moisture retention performance of packaging. The method comprises the following steps: (1) respectively sealing two same samples to be tested by using two packaging materials according to the same packaging mode, and carrying out balance treatment at different times in a constant temperature and humidity environment; (2) detecting the water activities of two samples to be detected; (3) respectively drawing a change trend graph of the water activities of the two samples to be detected by taking the time as an abscissa and the water activities as an ordinate; (4) and (3) recording the gradient value of the trend line as K and the intercept value as B, and then evaluating the moisture-proof and moisture-retaining performance of the package of the sample to be tested according to the K/B value. The method disclosed by the invention is simple and convenient to operate, short in detection period, simple in analysis method of detection results, capable of comprehensively considering environmental factors, capable of solving the problems of complicated process, long detection period, serious influence of environmental factors and the like in the prior art, and suitable for evaluating moisture-proof and moisture-retaining performances of packages of different shapes and different materials.
Description
Technical Field
The invention belongs to the technical field of packaging, and particularly relates to a method for evaluating moisture resistance and moisture retention performance of packaging.
Background
The moisture-proof and moisture-retaining performance of the package refers to the capability of protecting and controlling the moisture of the internal product, and is one of the important influencing factors for the storage and quality guarantee of the product. The moisture-proof and moisture-retaining performance of the current package is mainly evaluated by detecting the moisture content, the moisture content detection methods mainly comprise a Karl Fischer method, a drying method, an oven method, a DVS dynamic moisture analyzer, an infrared method, a microwave method and the like, and some methods are complicated in process and long in period; some products can realize rapid detection, but the detection result is not high in accuracy, and the water absorption and water loss states of the products inside the package are difficult to rapidly and accurately represent. Therefore, a simple and accurate technology for evaluating moisture resistance and moisture retention performance of packaging is urgently needed to be developed.
Disclosure of Invention
The present invention has been made to solve the above problems.
The invention provides an evaluation method of moisture resistance and moisture retention performance of a package, which comprises the following steps:
(1) respectively sealing two same samples to be detected by using two same or different packaging materials according to the same or different packaging modes, and then carrying out balance treatment on the two samples to be detected for different times in a constant-temperature and constant-humidity environment with the same temperature and the same humidity;
(2) detecting the water activities of the two samples to be detected after the balance treatment at different times;
(3) respectively drawing a change trend graph of the water activity of the two samples to be detected at different equilibrium times by taking the time as an abscissa and the water activity as an ordinate;
(4) in the change trend graph, the slope value of the trend line is marked as K, the intercept value of the trend line is marked as B, and then the moisture resistance and moisture retention performance of the package of the sample to be tested is evaluated according to the following method:
and when the difference value of the two K values of the two samples to be tested is greater than 0.0002, performing performance evaluation according to the K values:
wherein the closer the K value is to 0, the better the moisture resistance and the better the moisture retention of the package;
when K is less than 0, the smaller the K value is, the poorer the moisture retention performance of the package is;
when K > 0, the greater the K value, the poorer the moisture resistance of the package;
and when the K values of the two samples to be tested are the same or the difference value of the K values of the two samples to be tested is less than 0.0002, the performance evaluation is carried out by combining the B value:
when K is less than 0, the larger the B value is, the better the moisture retention performance of the package is;
when K > 0, a smaller B-value indicates a better moisture resistance of the package.
Preferably, the sample to be tested in step (1) may be a solid or a liquid. The large solid sample needs to be crushed or cut into small pieces.
Preferably, the humidity conditions in step (1) are: the relative humidity values are 20. + -. 2%, or 80. + -. 2%.
The moisturizing effect of the package is a concern in low humidity environments (relative humidity values of 20 + -2%) or when K < 0. The moisture resistance of the package is of concern in high humidity environments (relative humidity values of 20 + -2%) or when K > 0.
The moisture resistance, or moisture retention, of the package is related to the choice of packaging material and packaging method.
The packaging steps are different, and the packaging mode is also different.
Wherein, the temperature in the step (1) is the equilibrium temperature, and can be freely selected according to the actual situation.
Preferably, the method for measuring water activity in step (2) is selected from the group consisting of: a health room vessel diffusion method, a water activity tester method, a mirror condensation dew point method, a capacitance sensor method, a resistance sensor method, or a laser method. And selecting an appropriate determination method according to the physicochemical property of the sample to be determined.
Preferably, the different equilibration times in step (3) are 0h, 6h, 16h, 24h, 48h, 72 h.
Preferably, the packaging material comprises paper, wood, plastic, glass and tinfoil material.
Preferably, the packaging is selected from packaging designed in the form of a bag, box, bottle, or barrel.
The technical scheme can be freely combined on the premise of no contradiction.
Compared with the prior art, the invention has the following remarkable advantages:
the evaluation method disclosed by the invention is simple in pretreatment, simple and convenient to operate, short in detection period, simple in analysis method of detection results, capable of comprehensively considering environmental factors, capable of well solving the problems of complex process, long detection period, serious influence of environmental factors and the like in the existing evaluation technology, and suitable for evaluating moisture resistance and moisture retention performance of packages of different shapes and different materials.
Drawings
FIG. 1 shows the trend of water activity at different equilibration times in example 1.
FIG. 2 shows the trend of water activity at different equilibration times in example 2.
Detailed Description
The present invention will be further described with reference to the following embodiments.
Example 1
(1) Sample pretreatment: after removing the BOPP film from the small-packet cigarette sample (note: the cigarette box cover is not opened), carrying out balance treatment on the sample for 0h, 6h, 16h, 24h, 48h and 72h in a low-humidity environment (20 +/-2)% and a high-humidity environment (80 +/-2)%;
(2) and (3) water activity detection: detecting the water activity of the tobacco shreds of the cigarettes through a water activity meter;
(3) and drawing a change trend graph 1 of water activity under different equilibrium humidity and different equilibrium time by taking the time as an abscissa and the water activity as an ordinate.
In this example 1, the samples are respectively small cigarette packs using two different inner lining papers, i.e. the packing materials are different, the packing manner is the same, and the experimental results are shown in the following table 1:
TABLE 1 Trend line slope K test results
As can be seen from table 1:
under a low-humidity environment, the K values of the two samples are both less than 0, and the K value of the sample 2 is closer to 0 than that of the sample 1, so that the package moisturizing effect of the sample 2 is better.
Under high humidity environment, the K values of both samples are greater than 0, and the K value of sample 2 is smaller than that of sample 1, which shows that the moisture resistance of the package of sample 2 is better.
Example 2
(1) Sample pretreatment: after removing the BOPP film from the small-packet cigarette sample (note: not opening the cigarette box cover), carrying out balance treatment on the sample for 0h, 6h, 16h, 24h, 48h and 72h in a low-humidity environment (20 +/-2)% and a high-humidity environment (80 +/-2)%;
(2) and (3) water activity detection: detecting the water activity of the tobacco shreds of the cigarettes through a water activity meter;
(3) and (3) taking the time as an abscissa and the water activity as an ordinate, and drawing a change trend graph 2 of the water activity under different equilibrium humidity and different equilibrium time.
In this example 2, the samples are cigarettes packed in two different hard boxes, that is, the packing materials are different, the packing modes are also different, and the experimental results are shown in the following table 2:
TABLE 2 Trend line slope K test results
As can be seen from table 2:
under a low-humidity environment, the K values of the two samples are both less than 0, the difference value is less than 0.0002, the B value of the sample 2 is greater than that of the sample 1, and the packaging and moisture-retaining effect of the sample 2 is better.
Under a high humidity environment, the K values of both samples are greater than 0, and the K value of sample 2 is smaller than that of sample 1, so that the moisture resistance of the package of sample 2 is better.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The evaluation method for the moisture resistance and moisture retention performance of the package is characterized by comprising the following steps:
(1) respectively sealing two same samples to be detected by using two same or different packaging materials according to the same or different packaging modes, and then carrying out balance treatment on the two samples to be detected for different times in a constant-temperature and constant-humidity environment with the same temperature and the same humidity;
(2) detecting the water activities of the two samples to be detected after the balance treatment at different times;
(3) respectively drawing a change trend graph of the water activity of the two samples to be detected at different equilibrium times by taking the time as an abscissa and the water activity as an ordinate;
(4) in the change trend graph, the slope value of the trend line is marked as K, the intercept value of the trend line is marked as B, and then the moisture resistance and moisture retention performance of the package of the sample to be tested is evaluated according to the following method:
and when the difference value of the two K values of the two samples to be tested is greater than 0.0002, performing performance evaluation according to the K values:
wherein the closer the K value is to 0, the better the moisture resistance and the better the moisture retention of the package;
when K is less than 0, the smaller the K value is, the poorer the moisture retention performance of the package is;
when K > 0, the greater the K value, the poorer the moisture resistance of the package;
and when the K values of the two samples to be tested are the same or the difference value of the K values of the two samples to be tested is less than 0.0002, the performance evaluation is carried out by combining the B value:
when K is less than 0, the larger the B value is, the better the moisture retention performance of the package is;
when K > 0, a smaller B-value indicates a better moisture resistance of the package.
2. The method according to claim 1, wherein the sample to be tested in step (1) can be a solid or a liquid.
3. The method according to claim 1, wherein the humidity conditions in step (1) are: the relative humidity values are 20. + -. 2%, or 80. + -. 2%.
4. The method according to claim 1, wherein the determination of water activity in step (2) is selected from the group consisting of: a health room vessel diffusion method, a water activity tester method, a mirror condensation dew point method, a capacitance sensor method, a resistance sensor method, or a laser method.
5. The method of claim 1, wherein the different equilibration times in step (3) are 0h, 6h, 16h, 24h, 48h, 72 h.
6. The method of claim 1, wherein the packaging material is selected from paper, wood, plastic, glass, or tin foil materials.
7. The method of claim 1, wherein the packaging is selected from packaging designed as a pouch, box, bottle, or barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010015602.XA CN111189974A (en) | 2020-01-07 | 2020-01-07 | Method for evaluating moisture-proof and moisture-retaining performance of package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010015602.XA CN111189974A (en) | 2020-01-07 | 2020-01-07 | Method for evaluating moisture-proof and moisture-retaining performance of package |
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| CN111189974A true CN111189974A (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010015602.XA Pending CN111189974A (en) | 2020-01-07 | 2020-01-07 | Method for evaluating moisture-proof and moisture-retaining performance of package |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113205286A (en) * | 2021-07-05 | 2021-08-03 | 南京乡依文化创意产业有限公司 | Product packaging management intelligent system capable of achieving source waste reduction based on big data |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105341A (en) * | 2013-01-31 | 2013-05-15 | 中国烟草总公司郑州烟草研究院 | Method for evaluating humidity keeping performance of tobacco |
| CN105842103A (en) * | 2016-03-21 | 2016-08-10 | 上海烟草集团有限责任公司 | Tobacco moisture retention performance test method |
| CN107490658A (en) * | 2017-09-11 | 2017-12-19 | 云南中烟工业有限责任公司 | A kind of evaluation method of cigarette humid keeping performance |
-
2020
- 2020-01-07 CN CN202010015602.XA patent/CN111189974A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105341A (en) * | 2013-01-31 | 2013-05-15 | 中国烟草总公司郑州烟草研究院 | Method for evaluating humidity keeping performance of tobacco |
| CN105842103A (en) * | 2016-03-21 | 2016-08-10 | 上海烟草集团有限责任公司 | Tobacco moisture retention performance test method |
| CN107490658A (en) * | 2017-09-11 | 2017-12-19 | 云南中烟工业有限责任公司 | A kind of evaluation method of cigarette humid keeping performance |
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| 孙志涛等: "盒包材料对烟支水分散失速率的影响", 《烟草科技》 * |
| 张峻松等: "烟草等温吸湿线和净等量吸附热的研究", 《轻工学报》 * |
| 王睿娜等: "镀陶烟用内衬纸防潮保润保香性研究", 《包装工程》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113205286A (en) * | 2021-07-05 | 2021-08-03 | 南京乡依文化创意产业有限公司 | Product packaging management intelligent system capable of achieving source waste reduction based on big data |
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Application publication date: 20200522 |
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