CN109211656A - A kind of migration test pretreatment unit and preprocess method - Google Patents
A kind of migration test pretreatment unit and preprocess method Download PDFInfo
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- CN109211656A CN109211656A CN201811176048.2A CN201811176048A CN109211656A CN 109211656 A CN109211656 A CN 109211656A CN 201811176048 A CN201811176048 A CN 201811176048A CN 109211656 A CN109211656 A CN 109211656A
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- pretreatment unit
- protrusion
- accommodating space
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- 238000013508 migration Methods 0.000 title claims abstract description 120
- 230000005012 migration Effects 0.000 title claims abstract description 120
- 238000012360 testing method Methods 0.000 title claims abstract description 108
- 238000000034 method Methods 0.000 title claims abstract description 30
- 210000004907 gland Anatomy 0.000 claims abstract description 48
- 230000004308 accommodation Effects 0.000 claims abstract description 46
- 238000001514 detection method Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 12
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 12
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 239000005022 packaging material Substances 0.000 abstract description 34
- 239000002184 metal Substances 0.000 abstract description 29
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 17
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 8
- 235000019441 ethanol Nutrition 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000007781 pre-processing Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000005477 standard model Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001617 migratory effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
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- Physics & Mathematics (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)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention provides a kind of migration test pretreatment unit and preprocess method, migration test pretreatment unit includes: gland and receiving tank；There is accommodation groove, accommodation groove is for placing sample to be tested in gland；The protrusion that tank has accommodating space and is connected to accommodating space is accommodated, accommodating space is for placing food simulants, and protrusion is connect with gland, and protrusion is abutted against with sample to be tested, so that sample to be tested closes accommodating space.Migration test pretreatment unit provided by the invention, improves positioning and sealability of the migration test pretreatment unit to the metal cover based packaging material of hard out-of-flatness, and the convenient metal cover based packaging material to hard out-of-flatness carries out the pretreatment of migration test.
Description
Technical field
The present invention relates to technical field of food safety detection more particularly to a kind of migration test pretreatment unit and pretreatments
Method.
Background technique
With the development of science and technology and chemical products, food safety is increasingly valued by people, in order to improve
Detection of the people to packaging material for food safety, country have promulgated a series of relevant food safety mark of packaging materials for food
Standard, especially to the amount of migration of packaging material for food, (the amount of migration, which is mainly used for investigating from package in food, to be migrated into food
Potential ability and migration the presence or absence of substance toxicity；Including gross migration and Special migration) whether meet national standard into
Regulation is gone.Obtain the amount of migration of packaging material for food, it is necessary to migration test is carried out, for example, GB 5009.156-2016 " food
The safe national standard food contact material of product and product migration test preprocess method general rule " in the pretreatment side of migration test
Method is provided.
In order to which the sample to be tested for meeting to migration test pre-processes, occur in the related technology for migration test
Sample to be tested carry out pretreated pretreatment unit sample to be tested carried out in the related technology as shown in Figure 1, being shown in Fig. 1
Pretreated a kind of pretreatment unit, comprising: pedestal 11 is arranged round divider wall 12 square on the pedestal 11, is arranged in circle
The upper cover 13 of 12 top of divider wall and the locking member 14 for locking upper bed-plate 11, round divider wall 12 and upper cover 03, in circle
Food simulants inlet 120 is provided on divider wall 12；When in use, sample to be tested 110 is lain in into pedestal 11 first
Upper surface, and the predetermined surface contacted with food of sample to be tested is kept upward, then by round divider wall 12 to be pressed on sample to be tested,
Upper upper cover 13 is pressed above round divider wall 12 and is locked pedestal 11, round divider wall 12 and upper cover 13 using locking member 14
Tightly；Food simulants are accommodated in this way, being formed between the upper surface and round divider wall 12 and upper cover 13 of sample to be tested 110
Food simulants are injected in chamber resettling from food simulants inlet 120, and close food simulants injection by chamber resettling
Mouth 120, according to GB 5009.156-2016 " national food safety standard food contact material and product migration test pretreatment side
Method general rule " as defined in method pre-processed, to obtain the food simulants of pending the amount of migration detection.
But existing pretreatment unit because in such a way that round divider wall is pressed on sample to be tested upper surface to accommodating
Chamber is sealed, therefore can only be pre-processed to smooth sample to be tested flexible, it is difficult to adapt to food service industry packaging material
Development in pluralism, be difficult to be positioned and be sealed especially for the metal cover based packaging material of hard out-of-flatness, it is difficult into
Row pretreatment.
Summary of the invention
The embodiment of the present invention provides a kind of migration test pretreatment unit and preprocess method, to solve existing migration test
Pretreatment unit is difficult to obtain metal cover based packaging material progress location sealing and pretreated problem for the out-of-flatness of hard, mentions
The high scope of application of pretreatment unit and the migration test pretreatment potentiality to metal cover based packaging material.
On the one hand, the embodiment of the present invention provides a kind of migration test pretreatment unit, for obtaining pending the amount of migration inspection
The food simulants of survey, comprising: gland and receiving tank；
There is accommodation groove, the accommodation groove is for placing sample to be tested in the gland；
The protrusion for accommodating tank and having accommodating space and being connected to the accommodating space, the accommodating space is for putting
The food simulants are set, the protrusion is connect with the gland, and the protrusion is abutted against with the sample to be tested, with
The sample to be tested is set to close the accommodating space.
As a kind of a kind of optional embodiment of migration test pretreatment unit provided in an embodiment of the present invention, also wrap
Include: annular seal washer, the seal washer are used to seal the gap between the sample to be tested and the protrusion.
As a kind of migration test pretreatment unit that a kind of optional embodiment of the invention provides, the protrusion with
The accommodation groove is connected through a screw thread.
As a kind of migration test pretreatment unit that a kind of optional embodiment of the invention provides, on the protrusion
Screw thread length be greater than or equal to the accommodation groove on screw thread length.
As a kind of migration test pretreatment unit that a kind of optional embodiment of the invention provides, the gland and institute
Stating and accommodating the material of tank is polytetrafluoroethylene (PTFE).
As a kind of migration test pretreatment unit that a kind of optional embodiment of the invention provides, on the receiving tank
It is provided with channel to be opened/closed, the channel is connected to the accommodating space, to pass through the channel into the accommodating space
Inject the food simulants.
As a kind of migration test pretreatment unit that a kind of optional embodiment of the invention provides, the receiving tank is
It is cylindrical.
As a kind of migration test pretreatment unit that a kind of optional embodiment of the invention provides, the gland is circle
Cylindricality or regular prism shape.
As a kind of migration test pretreatment unit that a kind of optional embodiment of the invention provides, the number of the gland
Amount and the quantity of the protrusion are two, and two protrusions are located at the opposite two sides of the accommodating space.
On the other hand, the embodiment of the present invention provides a kind of migration test preprocess method, using migration examination as described above
Test pretreatment unit carry out migration test pretreatment, the migration test preprocess method the following steps are included:
The sample to be tested is placed in accommodation groove, places food simulants in the accommodating space；
The protrusion is connect with the gland, and the protrusion is abutted against with the sample to be tested, to pass through
It states sample to be tested and closes the accommodating space；
The migration test pretreatment unit is heated into preset time at preset temperature, obtains food to be detected after cooling
Product analogies.
A kind of migration test pretreatment unit and preprocess method provided in an embodiment of the present invention pass through setting gland and appearance
It receives tank, accommodation groove is set in gland, sample to be tested is placed in accommodation groove, accommodation groove can be to sample to be tested, especially
Metal cover based packaging material plays position-limiting action；The protrusion for being provided with accommodating space by accommodating tank and being connected to accommodating space
Portion, protrusion are connect with gland, and protrusion is abutted with sample to be tested, so that sample to be tested closes accommodating space, to realize
Food simulants completely attach in accommodating space with the surface of sample to be tested, and sample to be tested is preferably close by accommodating space
Envelope improves positioning and sealability of the migration test pretreatment unit to the metal cover based packaging material of hard out-of-flatness, convenient
The pretreatment of migration test is carried out to the metal cover based packaging material of hard out-of-flatness.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the main view for the migration test pretreatment unit that the prior art of the invention provides；
Fig. 2 is a kind of overall structure diagram of migration test pretreatment unit provided by the invention；
Fig. 3 is a kind of main view for the migration test pretreatment unit that optional embodiment provides of the present invention；
Fig. 4 is a kind of cross-sectional view of the migration test pretreatment unit that optional embodiment provides of the present invention along line A-A；
Fig. 5 is a kind of top view for the migration test pretreatment unit that optional embodiment provides of the present invention；
Fig. 6 is the overall structure signal for the migration test pretreatment unit that another optional embodiment of the present invention provides
Figure；
Fig. 7 is the main view for the migration test pretreatment unit that another optional embodiment of the present invention provides；
Fig. 8 is cross-sectional view of the migration test pretreatment unit that provides of another optional embodiment of the present invention along line B-B；
Fig. 9 is the flow chart for the migration experiment preprocess method that a kind of optional embodiment of the present invention provides.
Appended drawing reference:
11- pedestal；
12- circle divider wall, 120- food simulants inlet；
13- upper cover；
14- locking member；
110- sample to be tested；
21- gland；
210- accommodation groove；
22- accommodates tank；
220- accommodating space, 221- protrusion；
23- seal washer.
Through the above attached drawings, it has been shown that the specific embodiment of the present invention will be hereinafter described in more detail.These attached drawings
It is not intended to limit the scope of the inventive concept in any manner with verbal description, but is by referring to specific embodiments
Those skilled in the art illustrate the concept of the disclosure.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.
Fig. 1 is the main view for the migration test pretreatment unit that the prior art of the invention provides.As shown in Figure 1, existing
Migration test pretreatment unit in technology, comprising: pedestal 11 is arranged round divider wall 12 square on the pedestal 11, is arranged in circle
The upper cover 13 of 12 top of shape divider wall and the locking member 14 for locking upper bed-plate 11, round divider wall 12 and upper cover 03, in circle
Food simulants inlet 120 is provided on shape divider wall 12；When in use, sample to be tested 110 is lain in into pedestal 11 first
Upper surface, and the predetermined surface contacted with food of sample to be tested is kept upward, then by round divider wall 12 to be pressed in sample to be tested
On, upper upper cover 13 is pressed above round divider wall 12 and utilizes locking member 14 by pedestal 11, round divider wall 12 and upper cover 13
Locking；Food simulants are accommodated in this way, being formed between the upper surface and round divider wall 12 and upper cover 13 of sample to be tested 110
Chamber resettling, by food simulants from food simulants inlet 120 inject chamber resettling in, and close food simulants note
Entrance 120, according to GB5009.156-2016, " national food safety standard food contact material and product migration test are pre-processed
Method general rule " as defined in method pre-processed, to obtain the food simulants of pending the amount of migration detection.
But existing pretreatment unit because in such a way that round divider wall is pressed on sample to be tested upper surface to accommodating
Chamber is sealed, therefore can only be pre-processed to smooth sample to be tested flexible, it is difficult to adapt to food service industry packaging material
Development in pluralism, be difficult to be positioned and be sealed especially for the metal cover based packaging material of hard out-of-flatness, it is difficult into
Row pretreatment.
Fig. 2 is a kind of overall structure diagram for the migration test pretreatment unit that optional embodiment provides of the present invention.
Fig. 3 is a kind of main view for the migration test pretreatment unit that optional embodiment provides of the present invention.Fig. 4 is that one kind of the present invention can
Cross-sectional view of the migration test pretreatment unit for selecting embodiment to provide along line A-A.Fig. 5 is a kind of optional embodiment of the present invention
The top view of the migration test pretreatment unit of offer.Fig. 6 is the migration test that another optional embodiment of the present invention provides
The overall structure diagram of pretreatment unit.Fig. 7 is the migration test pretreatment that another optional embodiment of the present invention provides
The main view of device.Fig. 8 is migration test pretreatment unit the cuing open along line B-B that another optional embodiment of the present invention provides
View.
As Figure 2-Figure 5, the present invention provides a kind of migration test pretreatment unit, for obtaining pending the amount of migration inspection
The food simulants of survey, comprising: gland 21 and receiving tank 22；
There is accommodation groove 210, accommodation groove 210 is for placing sample to be tested 110 in gland 21；
The protrusion 221 that tank 22 has accommodating space 220 and is connected to accommodating space 220 is accommodated, accommodating space 220 is used for
Food simulants are placed, protrusion 221 is connect with gland 21, and protrusion 221 is abutted against with sample to be tested 110, so as to be measured
Sample 110 closes accommodating space 220.
A kind of migration test pretreatment unit provided in the present embodiment by setting gland and accommodates tank, is pressing
Accommodation groove is set in lid, sample to be tested is placed in accommodation groove, accommodation groove can be to sample to be tested, especially metal cover class packet
Package material plays position-limiting action；By accommodating the tank protrusion that is provided with accommodating space and be connected to accommodating space, protrusion and
Gland connection, and protrusion is abutted with sample to be tested, so that sample to be tested closes accommodating space, to realize that food simulants exist
It is completely attached in accommodating space with the surface of sample to be tested, and sample to be tested preferably seals accommodating space, improves migration
Positioning and sealability of the pretreatment unit to the metal cover based packaging material of hard out-of-flatness are tested, it is convenient to hard out-of-flatness
Metal cover based packaging material carry out migration test pretreatment.
A kind of migration test pretreatment unit that a kind of optional embodiment as the present embodiment provides further include: annular
Seal washer 23, seal washer 23 is used to seal gap between sample to be tested 110 and protrusion 221.
In the present embodiment, seal washer 23 can be ring-shaped seal washer, be also possible to O-shaped seal washer,
The gap between sample to be tested 110 and protrusion 221 can be fully sealed for seal washer 23, and can guarantee sample to be tested
The area of the 110 predetermined one sides contacted with food is fully exposed to accommodating space 220, and the present invention is not to seal washer 23
Shape is specifically limited.
In the present embodiment, the pre- of migration test is carried out for metal cover based packaging material of the adaptation to hard and out-of-flatness
Processing, seal washer 23, which can be, has certain flexible silica gel sealing washer, is connected to seal washer 23 in protrusion 221
When upper, deformation occurs according to the metal cover based packaging material adaptability of hard and out-of-flatness for seal washer 23, thus completely close
Seal the gap between sample to be tested 110 and protrusion 221.It should be noted that seal washer 23 can also be other in external force
Effect it is lower can the material that deformation occurs, the present invention is not specifically limited the material of seal washer 23.
In the present embodiment, sample to be tested is placed in accommodation groove, by the predetermined one side contacted with food of sample to be tested
Towards the accommodating space for accommodating tank, seal washer is placed on the predetermined one side contacted with food of sample to be tested；In this way, accommodating tank
On protrusion connect with gland after, protrusion is tightly connected on seal washer, and accommodating space is fully sealed seal washer,
It avoids when the metal cover based packaging material to hard and out-of-flatness carries out migration test pretreatment, food simulants are let out
The problem of leakage, improves and carries out the pretreated pretreatment efficiency of migration test to the metal cover based packaging material of hard and out-of-flatness.
As a kind of optional embodiment of the invention, protrusion 221 is connected through a screw thread with accommodation groove 210.
In the present embodiment, the mode being connected through a screw thread will be arranged between protrusion and accommodation groove, can into
When row migration test pre-processes, facilitate the disassembly and connection realized and accommodated between tank and gland, improve working efficiency, shortens entire
Duty cycle.
As a kind of optional embodiment of the invention, the length of the screw thread on protrusion 221 is greater than or equal to accommodation groove
The length of screw thread on 210.
In the present embodiment, the reach on protrusion is set greater than or long equal to the screw thread on accommodation groove
Degree is effectively protected in this way, can effectively ensure that protrusion is only connected on seal washer after it will accommodate tank and connect with gland
The leakproofness for demonstrate,proving entire pretreatment unit avoids the food simulants in carrying out preprocessing process in accommodating space from leaking
The case where.
As a kind of optional embodiment of the invention, gland 21 and the material for accommodating tank 22 are polytetrafluoroethylene (PTFE).
In the present embodiment, polytetrafluoroethylene (PTFE) has acidproof, alkaline-resisting, organic solvent-resistant, high temperature resistant and the spies such as non-migratory
Point can be avoided the case where interfering in the pretreatment for carrying out migration test to metal cover based packaging material.
Specifically, will not be right using polytetrafluoroethylene (PTFE) for the migration test pretreatment unit provided in verifying present embodiment
The migration test of metal cover based packaging material generates interference, has carried out blank in the case where not being put into sample to be tested in accommodation groove
Test, and detect in the food simulants after pretreatment whether have moving out for coherent detection substance, the specific method is as follows:
Quantitative food simulants are injected in accommodating space 220, and by gland and accommodate tank locking；It later will be entirely pre-
Processing unit carries out stipulated time processing under given conditions, and treated food simulants are carried out to the inspection of coherent detection project
It surveys.
Specifically, the food simulants type, particular procedure condition and detection project in present embodiment are as shown in table 1.
1 food simulants type of table, particular procedure condition and detection project
In the present embodiment, according to the food simulants in table 1 and after treatment conditions are handled, to treated
Detection project in food simulants is detected, and testing result is as shown in table 2.Wherein, 4% acetic acid solution, 10% ethyl alcohol are molten
Liquid and 50% ethanol solution are volume fraction.
The detection result of each detection project of 2 blank test of table
Note: ND is Not Detected (being not detected)；Wherein, plasticiser 18 are specified in GB 31604.30-2016
Detection project.
From Table 2, it can be seen that the acetic acid solution for being respectively 4% with distilled water, volume fraction, volume fraction are 10%
Four kinds of food simulants of ethanol solution that ethanol solution and volume fraction are 50% carry out blank tests, in predefined conditions into
After row pretreatment, the project to be detected in food simulants is detected, testing result is not detect, it is possible thereby to see
Out, in the present embodiment, migration test pretreatment unit integrally uses polytetrafluoroethylene (PTFE) not interfere to migration test,
With preferable anti-interference ability, avoids pretreatment unit in the prior art and migration is tried using food-grade stainless steel material
Interference effect caused by testing improves the accuracy of migration test.
As a kind of optional embodiment of the invention, channel to be opened/closed is provided on receiving tank 22 and (is not shown in figure
Out), channel is connected to accommodating space 220, to inject food simulants into accommodating space 220 by channel.
In the present embodiment, channel to be opened/closed can be sets as food simulants inlet in the prior art
It sets in the side wall for accommodating tank, one end of the separate gland for the receiving tank that certain channel to be opened/closed can also be arranged；In this way, pressing
After lid is connect with receiving tank, food simulants easily can be injected into accommodation space by channel to be opened/closed.
As a kind of optional embodiment of the invention, accommodating tank 22 is cylinder.
Specifically, in the present embodiment, the global shape for accommodating tank can be cylinder, using cylindrical receiving
Tank can improve space utilization rate, and can be avoided between multiple receiving tanks when carrying out the pretreatment of batch migration test
Mutually scratch, the integrality of effective protection pretreatment unit appearance avoids abrasion in use.
It should be noted that in the present embodiment, accommodate tank lateral wall be in axial direction also provided with it is several
Antiskid groove (not shown) in present embodiment, by the way that several antiskid grooves are arranged in the lateral wall for accommodating tank, is carrying out
When the pretreatment of migration test, it can be improved gland and accommodate the locking degree between tank, avoid in preprocessing process, eat
There is a situation where leak for product analogies.
As a kind of optional embodiment of the invention, gland 21 is cylindrical or regular prism shape.
In the present embodiment, the global shape of gland can be cylinder, can also be regular prism shape, gland is arranged to
Cylinder can be improved space utilization rate, and can be avoided mutually scratching between multiple receiving tanks, effective protection pretreatment
The integrality of device appearance avoids abrasion in use.Gland is arranged to regular prism shape, is carrying out migration test
When pretreatment, it can be improved gland and accommodate the locking degree between tank, avoid in preprocessing process, food simulants hair
The case where raw leakage.
In the present embodiment, the global shape for accommodating tank is also possible to regular prism shape, will accommodate tank and is arranged to regular prism
Shape can be improved gland and accommodate the locking degree between tank, avoid and pre-processing when carrying out the pretreatment of migration test
In the process, there is a situation where leak for food simulants.
As a kind of optional embodiment of the invention, the quantity of gland 21 and the quantity of protrusion 221 are two, and two
A protrusion 221 is located at the opposite two sides of accommodating space 220.
In the present embodiment, it is provided with accommodation groove 210 in two glands 21, the internal diameters of two accommodation grooves 210 can be with
It is equal, at this point, the outer diameter of two protrusions 221 is also equal.In present embodiment, the internal diameter of two accommodation grooves 210 is arranged to
It is equal, two accommodation grooves 210 can the metal cover based packaging material to identical standard carry out migration test pretreatment.It needs to illustrate
, the standard of metal cover based packaging material has specific national Specification, therefore, when two 210 internal diameters of accommodation groove are equal,
Two accommodation grooves 210 be for same country standard model metal cover based packaging material carry out migration test it is pretreated.
In the present embodiment, the internal diameter of two accommodation grooves 210 can also be unequal, at this point, two protrusions 221 is outer
Diameter is also unequal.The internal diameter of two accommodation grooves 210 is arranged to unequal, two accommodation grooves 210 can be respectively for different
The metal cover based packaging material of national standard model carries out migration test pretreatment, improves the suitable of migration test pretreatment unit
Should be able to power and application popularity.
Below with reference to the migration test pretreatment unit of Fig. 6-embodiment according to a second aspect of the present invention shown in Fig. 8.Such as
Shown in Fig. 6-Fig. 8, the present invention provides a kind of migration test pretreatment unit, for obtaining the food mould of pending the amount of migration detection
Quasi- object, comprising: gland 21 and receiving tank 22；
Gland 21 has protrusion 221；
The accommodation groove 210 that tank 22 has accommodating space 220 and is connected to accommodating space 220 is accommodated, accommodating space 220 is used for
Food simulants are placed, protrusion 221 is connect with tank is accommodated, and protrusion 221 is abutted against with sample to be tested 110, so as to be measured
Sample 110 closes accommodating space 220.
A kind of migration test pretreatment unit provided in an embodiment of the present invention by setting gland and accommodates tank, in gland
Upper setting protrusion, and the accommodation groove being connected to accommodating space is set on accommodating tank, sample to be tested is placed in accommodation groove,
Accommodation groove can play position-limiting action to sample to be tested, especially metal cover based packaging material；Protrusion is connect with tank is accommodated, and
Protrusion is abutted with sample to be tested, so that sample to be tested closes accommodating space, to realize food simulants in accommodating space
It is completely attached to the surface of sample to be tested, and sample to be tested preferably seals accommodating space, improves migration test pretreatment
Positioning and sealability of the device to the metal cover based packaging material of hard out-of-flatness, the convenient metal cover class to hard out-of-flatness
The pretreatment of packaging material progress migration test.
Fig. 9 is the flow chart for the migration experiment preprocess method that a kind of optional embodiment of the present invention provides.Such as Fig. 9 institute
Show, the migration test preprocess method of third aspect present invention embodiment；Implemented using first aspect embodiment and second aspect
The migration test pretreatment unit that example provides carries out migration test pretreatment, method includes the following steps:
Sample to be tested 110 is placed in accommodation groove 210 by S101, places food simulants in accommodating space 220.
In present embodiment, sample to be tested 110 can be the metal cover based packaging material of hard out-of-flatness, and sample to be tested
110 with national Specification standard sizes, food simulants can be distilled water, volume fraction be 4% acetic acid solution,
The ethanol solution and volume fraction that volume fraction is 10% are one of 50% ethanol solution or a variety of, food simulants
Be also possible to specified in national standard other can solution in migration experiment as food simulants, in present embodiment
It is not specifically limited.
In present embodiment, the food simulants being placed in accommodating space 220 are quantitative placements, specifically be can be
The food simulants of 100ml-300ml dosage.Protrusion 221 is connect by S102 with accommodation groove 210, and protrusion 221 with it is to be measured
Sample 110 abuts against, to close accommodating space 220 by sample to be tested 110.
Migration test pretreatment unit is heated at preset temperature preset time, obtained after cooling to be detected by S103
Food simulants.
Specifically, in the present embodiment, migration test pretreatment unit is heated into preset time at preset temperature,
Food simulants to be detected are obtained after cooling, can be and migration test pretreatment unit is handled 30 under the conditions of 20 DEG C -121 DEG C
Minute to 10 days, is cooled to room temperature, to obtain food simulants to be detected later.
A kind of migration experiment preprocess method provided in an embodiment of the present invention is passed through using migration test pretreatment unit
Gland is set and accommodates tank, accommodation groove is set in gland, sample to be tested is placed in accommodation groove, accommodation groove can be to be measured
Sample, especially metal cover based packaging material play position-limiting action；Accommodating space and and accommodating space are provided with by accommodating tank
The protrusion of connection, protrusion are connect with gland, and protrusion is abutted with sample to be tested, so that sample to be tested closing accommodating is empty
Between, to realize that food simulants completely attach in accommodating space with the surface of sample to be tested, and sample to be tested is preferable
Accommodating space is sealed, improves migration test pretreatment unit to the positioning of the metal cover based packaging material of hard out-of-flatness and close
Envelope ability, the convenient metal cover based packaging material to hard out-of-flatness carry out the pretreatment of migration test.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are contained at least one embodiment or example of the disclosure.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
It should be understood that although the disclosure has been illustrated with some embodiments, those skilled in the art
It is appreciated that a variety of to the progress of these embodiments can change without departing from the principle and spirit of the present invention, modify,
Replacement and variant, the scope of the present disclosure are defined by the claims and their equivalents.
Claims (10)
1. a kind of migration test pretreatment unit, for obtaining the food simulants of pending the amount of migration detection, which is characterized in that
It include: gland and receiving tank；
There is accommodation groove, the accommodation groove is for placing sample to be tested in the gland；
The protrusion for accommodating tank and having accommodating space and being connected to the accommodating space, the accommodating space is for placing institute
Food simulants are stated, the protrusion is connect with the gland, and the protrusion is abutted against with the sample to be tested, so that institute
It states sample to be tested and closes the accommodating space.
2. migration test pretreatment unit according to claim 1, which is characterized in that further include: annular seal washer,
The seal washer is used to seal the gap between the sample to be tested and the protrusion.
3. migration test pretreatment unit according to claim 1, which is characterized in that the protrusion and the accommodation groove
It is connected through a screw thread.
4. migration test pretreatment unit according to claim 3, which is characterized in that the length of the screw thread on the protrusion
Degree is greater than or equal to the length of the screw thread on the accommodation groove.
5. migration test pretreatment unit according to claim 1, which is characterized in that the gland and described accommodate tank
Material is polytetrafluoroethylene (PTFE).
6. migration test pretreatment unit according to claim 1, which is characterized in that be provided with and can open on the receiving tank
The channel closed, the channel are connected to the accommodating space, to inject the food into the accommodating space by the channel
Product analogies.
7. migration test pretreatment unit according to claim 1, which is characterized in that the receiving tank is cylinder.
8. migration test pretreatment unit according to claim 1, which is characterized in that the gland is cylindrical or positive rib
Cylindricality.
9. migration test pretreatment unit according to claim 1-8, which is characterized in that the quantity of the gland
Quantity with the protrusion is two, and two protrusions are located at the opposite two sides of the accommodating space.
10. a kind of migration test preprocess method, which is characterized in that use the described in any item migration tests of claim 1-9
Pretreatment unit carry out migration test pretreatment, the migration test preprocess method the following steps are included:
The sample to be tested is placed in accommodation groove, places food simulants in the accommodating space；
The protrusion is connect with the gland, and the protrusion is abutted against with the sample to be tested, with by it is described to
Test specimens close the accommodating space；
The migration test pretreatment unit is heated into preset time at preset temperature, obtains food mould to be detected after cooling
Quasi- object.
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|---|---|---|---|---|
| EP0520850A1 (en) * | 1991-06-27 | 1992-12-30 | Carnaudmetalbox | Cell for investigating reaction occurring at a material-product interface |
| CN202110120U (en) * | 2011-05-30 | 2012-01-11 | 福建出入境检验检疫局检验检疫技术中心 | Polytetrafluoroethylene testing tank with multifunctional simulated migration |
| CN206223599U (en) * | 2016-12-01 | 2017-06-06 | 上海烟草集团有限责任公司 | For the device of Special migration test in the packaging material of dry food |
| CN207281035U (en) * | 2017-08-10 | 2018-04-27 | 杭州中粮包装有限公司 | A kind of food simulants migrate test pond |
| CN209055396U (en) * | 2018-10-10 | 2019-07-02 | 奥瑞金科技股份有限公司 | A kind of migration test pretreatment unit |
-
2018
- 2018-10-10 CN CN201811176048.2A patent/CN109211656B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0520850A1 (en) * | 1991-06-27 | 1992-12-30 | Carnaudmetalbox | Cell for investigating reaction occurring at a material-product interface |
| CN202110120U (en) * | 2011-05-30 | 2012-01-11 | 福建出入境检验检疫局检验检疫技术中心 | Polytetrafluoroethylene testing tank with multifunctional simulated migration |
| CN206223599U (en) * | 2016-12-01 | 2017-06-06 | 上海烟草集团有限责任公司 | For the device of Special migration test in the packaging material of dry food |
| CN207281035U (en) * | 2017-08-10 | 2018-04-27 | 杭州中粮包装有限公司 | A kind of food simulants migrate test pond |
| CN209055396U (en) * | 2018-10-10 | 2019-07-02 | 奥瑞金科技股份有限公司 | A kind of migration test pretreatment unit |
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| CN109211656B (en) | 2024-05-14 |
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