CN106996930A - Food time temperature indicator - Google Patents
Food time temperature indicator Download PDFInfo
- Publication number
- CN106996930A CN106996930A CN201710303633.3A CN201710303633A CN106996930A CN 106996930 A CN106996930 A CN 106996930A CN 201710303633 A CN201710303633 A CN 201710303633A CN 106996930 A CN106996930 A CN 106996930A
- Authority
- CN
- China
- Prior art keywords
- box body
- food
- dividing plate
- cover plate
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
- G01N2021/786—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour with auxiliary heating for reaction
Abstract
The invention provides a kind of food time temperature indicator, including box body, cover plate and dividing plate, box body is circle and upper end is provided with opening, box body sticks in the upper surface of food package box by gum, cover plate is that transparent plastic is made and is seal-installed in the opening of box body, and box body is separated to form uniform intervals in content cavity and outer cavity volume, the circumference of dividing plate by dividing plate and is provided with multiple holes, it is placed with content cavity in gel containing enzyme, outer cavity volume and is placed with substrate gel.When temperature exceedes design temperature, gel containing enzyme and substrate gel gradually melt, temperature is higher, mobility is stronger, and the substrate that the enzyme of fusing enters outer cavity volume and fusing by the hole on dividing plate is contacted, and after the two contact is upper substrate can be made to occur metachromasia, temperature is higher, the time that temperature exceedes setting is longer, and the annular produced by substrate becomes that colour band is bigger, thus user can clearly monitor the influence that temperature during Food circulation changed with time for the food life-span by transparent cover plate.
Description
Technical field
The present invention relates to food standing time temperature indicating equipment technical field, in particular to a kind of food used time
Between temperature indicator.
Background technology
There is the event of the heavy economic losses triggered by food apoilage and food security in the whole world every year,
It is due to many times that temperature exceedes regulation and preserves temperature within the shelf-life and these events are not merely because food is expired causes
Degree triggers putrid and deteriorated, and such case consumer is often difficult to recognize by naked eyes.
Abroad, during cold chain Food circulation, there is the requirement of referred to as " not higher than principle ", i.e., from the producer to consumption
The temperature of each link is no greater than design temperature between person.Because, temperature more difficult control during Food circulation, if
Temperature is higher than design temperature certain time, then easily causes food apoilage, in this case in traditional food packaging
The term of validity has now lost the effect that it indicates the effective shelf life of food, is printed in the term of validity mark of packaging material outer surface
Knowledge just loses its meaning correctly indicated for consumer, it is impossible to warns, or even can rise to selling seller or consumer
To opposite indicating effect, so as to easily cause food-safety problem, the life security to consumer causes a hidden trouble.
Make accordingly, it would be desirable to monitor product temperature in the process of circulation using a kind of effective manner with the accumulation of time
With, indicate whether product has temperature to cause the rotten situation of product higher than design temperature in the process of circulation, so as to
There is provided the remaining shelf life information of product for enough accurate quality informations for indicating product.
The content of the invention
It is a primary object of the present invention to provide a kind of food time temperature indicator, to solve food of the prior art
Product packaging can not be the problem of accurately displays temperature influences for effective period of food quality.
To achieve these goals, the invention provides a kind of food time temperature indicator, including box body, cover plate and
Dividing plate, box body is provided with opening, the back side of the lower end of box body for circular and upper end and is provided with gum, and box body is pasted by gum
In the upper surface of food package box, cover plate is that transparent plastic is made and is seal-installed in the opening of box body, dividing plate for annular and
Up extend to be formed from the bottom of box body, box body is separated to form uniform in content cavity and outer cavity volume, the circumference of dividing plate by dividing plate
It is arranged at intervals with multiple holes, content cavity and is placed with gel containing enzyme, substrate gel, substrate and enzyme contact is placed with outer cavity volume
After can occur metachromasia.
Further, it is continuous concentric from dividing plate toward being set between the edge of box body in the one side of the remote box body of cover plate
Ring.
Further, the hole size that box body is divided on different series, the dividing plate of the box body of different series is different.
Further, cover plate is connected through a screw thread with box body or hot pressing connects or glue are connected.
Further, when cover plate is connected through a screw thread with box body, the contact site of cover plate and dividing plate passes through glue sealing.
Further, box body is integrally formed with dividing plate.
Further, box body, dividing plate and cover plate are directly molded to be formed by polyethylene terephthalate.
Compared with prior art, the beneficial effects of the invention are as follows：
After 1. packaging for foodstuff is finished, the food that the present invention is sticked in the upper surface of food pack is indicated with time-temperature
Device, during Food circulation, food is linked together with food pack always with time temperature indicator.Do not surpass in temperature
When crossing design temperature, the substrate gel of gel containing enzyme and outer cavity volume in content cavity does not melt, and does not flow, enzyme and substrate
Do not contacted, do not occur metachromasia；When temperature exceedes design temperature, gel containing enzyme and substrate gel gradually melt,
Temperature is higher, the two fusing degree it is more severe, mobility is stronger, the enzyme of fusing by the hole on dividing plate enter outer cavity volume and
The substrate contact of fusing, can make substrate occur metachromasia after the two contact is upper, produce annular and become colour band, temperature is higher, substrate
Produced annular change colour band is bigger, and the time that temperature exceedes setting is longer, and the annular colour band that becomes produced by substrate is bigger, thus
User can clearly monitor the shadow that temperature during Food circulation changed with time for the food life-span by transparent cover plate
Ring, clearly to food whether because in the process of circulation temperature it is too high and occur it is rotten indicate, user can easily lead to
Cross and check that the size of substrate annular change colour band in box body chooses safe food, factory also can be at any time by checking box body midsole
Whether thing annular becomes the size observation food of colour band because temperature is too high and rotten.
2. under identical Elevated Temperature Conditions, the hole on dividing plate is bigger, the contact area of enzyme and substrate is bigger, and metachromasia occurs
Scope it is bigger, generation annular become colour band it is also bigger, the reaction to temperature change is sensitiveer, thus can be according to different foods
Product change the box body from different series, to adjust the sensitivity of metachromasia.
3. can be accurately measured by the concentric ring on cover plate compare in substrate occur color change interval size, be easy into
Row scientifically metering contrast.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the structural representation of the food time temperature indicator of the present invention；
Fig. 2 shows the structural representation of Fig. 1 cover plates.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
1st, box body；2nd, cover plate；3rd, dividing plate；4th, gum；5th, content cavity；6th, outer cavity volume.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
In the present invention, in the case where not making opposite explanation, the noun of locality used is typically pin such as " upper and lower, top, bottom "
For direction shown in the drawings, or for part in itself on vertical, vertical or gravity direction for；Equally
Ground, for ease of understanding and describing, " inside and outside " refers to the inside and outside of the profile relative to each part in itself, but the above-mentioned noun of locality is not
For limiting the present invention.
For solve packaging for foodstuff of the prior art can not accurately displays temperature influences for effective period of food quality the problem of,
Invention provides a kind of food time temperature indicator.
As depicted in figs. 1 and 2, food time temperature indicator includes box body 1, cover plate 2 and dividing plate 3, and box body 1 is circle
And upper end is provided with opening, the back side of the lower end of box body 1 and is provided with gum 4, box body 1 sticks in packaging for foodstuff by gum 4
The upper surface of box, cover plate 2 is that transparent plastic is made and is seal-installed in the opening of box body 1, and dividing plate 3 is for annular and from box body 1
Bottom up extend to be formed, box body 1 by dividing plate 3 be separated to form in content cavity 5 and outer cavity volume 6, the circumference of dividing plate 3 it is uniform between
Gel containing enzyme is placed with every being provided with multiple holes, content cavity 5, substrate gel, substrate and enzyme contact are placed with outer cavity volume 6
After can occur metachromasia.
When making the food time temperature indicator of the present invention, prefabricated gel containing enzyme is placed in content cavity 5,
The prefabricated substrate gel for including food in food pack is placed in outer cavity volume 6, substrate is to represent in food pack
Food, then installs cover plate 2.After packaging for foodstuff is finished, the food that the present invention is sticked in the upper surface of food pack is used
Time temperature indicator, during Food circulation, food is connected to one with food pack always with time temperature indicator
Rise.When temperature is no more than design temperature, the substrate gel of gel containing enzyme and outer cavity volume 6 in content cavity 5 does not melt, all
Do not flow, enzyme and substrate are not contacted, and do not occur metachromasia；When temperature exceedes design temperature, gel containing enzyme and bottom
Thing gel gradually melts, and temperature is higher, and the two melts the more severe of degree, and mobility is stronger, and the enzyme of fusing passes through on dividing plate 3
Hole enters the substrate contact of outer cavity volume 6 and fusing, after the two contact is upper substrate can be made to occur metachromasia, produce and become colour circle,
And temperature is higher, the change colour circle produced by substrate is bigger, and the time that temperature exceedes setting is longer, the change colour circle produced by substrate
It is bigger, thus user can clearly be monitored temperature during Food circulation by transparent cover plate 2 and changed with time for food
The influence in product life-span, clearly to food whether because in the process of circulation temperature it is too high and occur it is rotten indicate, Yong Huneng
Enough conveniently by checking that substrate discoloration size chooses safe food in box body 1, factory also can be at any time by checking box body 1
Whether the size observation food of middle substrate discoloration ring is because temperature is too high and rotten.
Preferably, it is continuous concentric toward being set between the edge of box body 1 from dividing plate 3 in the one side of the remote box body 1 of cover plate 2
Ring.The size for comparing and color change interval occurring in substrate, workman and user's energy can be accurately measured by the concentric ring on cover plate 2
It is enough by compare occur becoming on cover plate 2 colour circle number number check the deterioration of packaged food, be convenient for scientifically
Metering contrast.
Preferably, 1 point of box body is the hole size difference on different series, the dividing plate 3 of the box body 1 of different series.Phase
With under Elevated Temperature Conditions, the hole on dividing plate 3 is bigger, and the amount that enzyme is entered in substrate by hole is bigger, contact of the enzyme with substrate
Area is bigger, and metachromasia is more violent, and the change colour circle of generation is also bigger, thus by changing the size energy of the hole on dividing plate 3
The sensitivity of the food time temperature indicator of enough convenient present invention, and then can be changed according to different food products from not homology
The box body 1 of row, to adjust the sensitivity of metachromasia.
Preferably, cover plate 2 is connected through a screw thread with box body 1 or hot pressing connects or glue are connected.When being connected through a screw thread
It can easily be dismantled, and box body 1 and cover plate 2 will not be damaged in unloading process, be convenient for recycling；Pass through heat
Pressure connection or glue connection when can effectively ensure the sealing between box body 1 and cover plate 2, prevent thus airtight sex chromosome mosaicism and
So that the food of the present invention is failed with time temperature indicator.
Preferably, when cover plate 2 is connected through a screw thread with box body 1, the contact site of cover plate 2 and dividing plate 3 passes through glue sealing.
By glue so that the contact site of cover plate 2 and dividing plate 3 is sealed, thus prevent gel containing enzyme and substrate gel from cover plate 2 with
Gap between dividing plate 3 contacts and influences the accuracy of result.
Preferably, box body 1 is integrally formed with dividing plate 3, so that simplify the production process and connection process of box body 1 and dividing plate 3,
Reduce the cost of manufacture of the food time temperature indicator of the present invention.
Preferably, box body 1, dividing plate 3 and cover plate 2 are directly molded to be formed by polyethylene terephthalate.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
Temperature changes with time for food during 1. user can clearly monitor Food circulation by transparent cover plate 2
The influence in product life-span, clearly to food whether because in the process of circulation temperature it is too high and occur it is rotten indicate, Yong Huneng
Enough to choose safe food conveniently by the size for checking substrate annular change colour band in box body 1, factory can also pass through at any time
Check that whether substrate annular becomes the size observation food of colour band because temperature is too high and rotten in box body 1.
2. under identical Elevated Temperature Conditions, the hole on dividing plate 3 is bigger, the contact area of enzyme and substrate is bigger, metachromasia hair
Raw scope is bigger, and the annular change colour band of generation is also bigger, and the reaction to temperature change is sensitiveer, thus can be according to different
Food changes the box body 1 from different series, to adjust the sensitivity of metachromasia.
3. the size for comparing and color change interval occurring in substrate can be accurately measured by the concentric ring on cover plate 2, it is easy to
Scientifically metering contrast is carried out, it is convenient and swift without individually being measured with ruler.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, work, device, component and/or combinations thereof.
It should be noted that term " comprising " and " tool in the description and claims of this application and above-mentioned accompanying drawing
Have " and their any deformation, it is intended that covering is non-exclusive to be included, for example, containing series of steps or unit
Process, method, system, product or equipment are not necessarily limited to those steps clearly listed or unit, but may include without clear
It is listing to Chu or for the intrinsic other steps of these processes, method, product or equipment or unit.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (7)
1. a kind of food time temperature indicator, it is characterised in that including：
Box body (1), the box body (1) is provided with opening, the back side of the lower end of the box body (1) and is provided with for circular and upper end
Gum (4), the box body (1) sticks in the upper surface of food package box by the gum (4)；
Cover plate (2), the cover plate (2) is that transparent plastic is made and is seal-installed in the opening of the box body (1)；
Dividing plate (3), the dividing plate (3) extends for annular and up to be formed from the bottom of the box body (1), and the box body (1) is led to
Cross the dividing plate (3) be separated to form uniform intervals in content cavity (5) and outer cavity volume (6), the circumference of the dividing plate (3) be provided with it is many
It is placed with individual hole, the content cavity (5) in gel containing enzyme, the outer cavity volume (6) and is placed with substrate gel, substrate and enzyme connects
Metachromasia can occur after touch.
2. food time temperature indicator according to claim 1, it is characterised in that the remote institute of the cover plate (2)
State in the one side of box body (1) and continuous concentric ring is set from the dividing plate (3) toward between the edge of the box body (1).
3. food time temperature indicator according to claim 2, it is characterised in that the box body (1) is divided into difference
Series, the hole size on the dividing plate (3) of the box body (1) of different series is different.
4. food time temperature indicator according to claim 1, it is characterised in that the cover plate (2) and the box
Body (1) is connected through a screw thread or hot pressing connects or glue connection.
5. food time temperature indicator according to claim 4, it is characterised in that the cover plate (2) and the box
When body (1) is connected through a screw thread, the cover plate (2) and the contact site of the dividing plate (3) pass through glue sealing.
6. food time temperature indicator according to claim 1, it is characterised in that the box body (1) with it is described every
Plate (3) is integrally formed.
7. food time temperature indicator as claimed in any of claims 1 to 6, it is characterised in that the box
Body (1), the dividing plate (3) and the cover plate (2) are directly molded to be formed by polyethylene terephthalate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710303633.3A CN106996930A (en) | 2017-05-03 | 2017-05-03 | Food time temperature indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710303633.3A CN106996930A (en) | 2017-05-03 | 2017-05-03 | Food time temperature indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106996930A true CN106996930A (en) | 2017-08-01 |
Family
ID=59435644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710303633.3A Pending CN106996930A (en) | 2017-05-03 | 2017-05-03 | Food time temperature indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106996930A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561233A (en) * | 2017-09-25 | 2018-01-09 | 中国标准化研究院 | A kind of bird egg freshness detection device |
-
2017
- 2017-05-03 CN CN201710303633.3A patent/CN106996930A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561233A (en) * | 2017-09-25 | 2018-01-09 | 中国标准化研究院 | A kind of bird egg freshness detection device |
| CN107561233B (en) * | 2017-09-25 | 2023-11-10 | 中国标准化研究院 | Poultry egg freshness detection device |
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