CN1720180A

CN1720180A - A package for storing goods in a preservative state as well as a method for making such a package

Info

Publication number: CN1720180A
Application number: CNA2003801047857A
Authority: CN
Inventors: 亨利·诺比; 马茨·尼高德
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-12-03
Filing date: 2003-12-02
Publication date: 2006-01-11
Also published as: SE524448C2; SE0203566L; US20040104141A1; SE0203566D0

Abstract

The invention relates to a package for goods having a bar-code (2) and a temperature indicator (3) including a contrast medium between a front wall and a base wall. According to the invention, the temperature indicator (3) is placed beside the bar-code (2) in close vicinity of an outer code bar (4) thereof without covering the bar-code, in order to, on one hand, in a first temperature state without hindrance enable scanning of the bar-code, but, on the other hand, after a colour alteration in the contrast medium make scanning impossible, more precisely by making an outer neutral field (5) opaque.

Description

Be used for the packing of stores under anticorrosion state and the method for marking for this packing

Technical field

First aspect, the present invention relates to be used for the packing of stores under anticorrosion state, temperature cannot surpass a certain limit in the packing, this packing comprises this class bar code on the one hand, it comprises between two outside extinction code bars by extinction code bar neutral reflective areas a plurality of centres spaced apart from each other and similar or mark, the outside neutral zone in the outer code bars outside.This packing also comprises temperature indicator on the other hand, temperature indicator comprises the contrast medium that is included between two walls, this medium is transparent or reflective under first state of temperature, but is triggered when being converted to another state of temperature and irreversibly changes into opaque or the extinction color.

Background technology

To handle a large amount of deep-frozen goods in food department.During the ultimate consumer, the expectation value that the temperature of packing and be included in the article in the packing is no more than a certain recommendation is very important in the production of deep-frozen goods and retail, and this expectation value is for normally one 18 ℃ of cryogenic refrigeration products.If article have by mistake obtained in sometime than the high temperature of expectation value of recommending, with regard to the risk of existence quality quantitative change difference, and if the time that exposes at high temperature elongated because the growth article of bacterium may directly become unhealthy.In fact treating process from the producer to customer comprises a plurality of different phases, for example storage (longer-term storage and short-term storage), transhipment, transportation and the carrying in the shop.Strict temperature standard and the suggestion of how to monitor and to write down the article temperature itself are all arranged in these different steps, are difficult but virtually completely observe these standards.Individual items in some cases, owing to unexpected or other reason, may be exposed to than in the also high temperature of the best expectation value of recommending, other personnel between consumers or producers and the customer in the chain can not see this situation in advance on correct packing.

In order to solve the above-mentioned problem, WO 01/72601 suggestion provides the packing with temperature indicator for frozen product, the device that this indicating device has when the drop in temperature of article and has a certain characteristic when being lower than a certain predetermined limit value, predetermined limit value is higher than the temperature expectation value of the article of discussion at least a little, if but at the memory period temperature build-up to more than the expectation value and the value of overstepping the extreme limit, this device irreversibly changes described characteristic.In fact, described device is made up of contrast liquid, this liquid when beginning be transparent and drop in temperature and be lower than described limit and described expectation value during keep transparent, if but temperature build-up to changing into irreversible opaque state more than the expectation value.In WO 01/72601, disclose in order to cover at least in part on the bar code, how the temperature indicator of discussing is applied to the outside that is exposed to the bar code on the packing outside face.The purpose of doing like this is can carry out code scans when temperature indicator during in pellucidity, but after being triggered, opaque state makes traditional code scans become impossible.In evolution as the temperature indicator of WO 01/72601 theme, yet, have been found that and make normal bar code scanning, promptly, although the medium in the temperature indicator still is transparent, it is difficult more that the scanning of the complete available article that the temperature indicator on its packing is not triggered becomes.

The such bar code that is applied to the packing of food or other goods is made up of the code of so-called EAN usually, and wherein letter e AN represents European Item Number.This has constituted the global system of the numbering of all types consumables.(association publishes directions for use for the user who adds this system for Intemational Article Numbering Association, EAN) management by " international Item Number association, European Item Number " in this system.EAN is used for having the shop of computerization cash desk and fixed type or portable barcode scanner.When symbol was scanned, the EAN code record occurred in the computer system in shop.Prevailing bar code is made up of price code and weight code respectively.If code exists in the price memory of computer system, when record occurs, trigger a column count method.Price and Description of Goods that the shop has been input in the computer system are shown to the customer by the price window.These information all are printed on customer's the receipt in the mode of plain text, and computing machine is with the payment amount addition.When price may change, article did not need to mark again.In addition, by use special-purpose program in computer system, have the possibility of concentrated message effectively, these information can make up to be formed for the basis of amount on order, taxonomy of goods, price etc.Whether this system also can be used to write down frozen food thaws, and promptly whether provides the temperature indicator that combines with the bar code of packing to article packing.Yet the condition that the scanning in shop and computer system are used in practice is that symbol scanning and record should be reliably, rapidly and correctly.If the temperature indicator delayed symbol scan operation that covers for example causes multiple scanning, it is so uninteresting that this possibility becomes.

In this, should be noted that the code scanner on the market has used Infrared, Infrared irradiation code bar and medium neutral zone, the quality to comparison scanning between code bar and the described zone is extremely important.In bigger scanner, shine code bar with grid light.If code bar is dark, for example black or blueness, the neutral zone be a light color simultaneously, and is for example white or yellow, can obtain best contrast effect.Yet, also may have other combination of color.Importantly color of Tao Luning or absorption or reflective infrared light.Prior is the visibility of code bar naturally.

Goal of the invention and feature

Target of the present invention be avoid with according to the relevant code scans problem of the packing of WO 01/72601 and improved packing is provided.Therefore, main purpose of the present invention, first aspect, provide and not only have bar code but also have the packing that is used for article of temperature indicator, it is with traditional, existing scanner and can be the article that can sell and stale article separately under the situation that does not increase the weight of the bar code scanning burden.This purpose realizes by the feature that the characteristic in claim 1 limits.The preferred embodiment of this packing further limits in dependent claims 2-8.

Second aspect the present invention also aims to provide a kind of method of marking for this article packing.The feature of this method is seen

claim

9 and 10.

Prior art is further illustrated

By German patent DE 19912529, to be known by people with the temperature indicator that can be applied to the label form on the article packing, this indicating device also comprises the clear topcoat that wherein is combined with bar code except the reactable layer with variable color.As long as the article of discussing keep preferred temperature, reactable layer remains unaffected and bar code can scan, if but having surpassed preferred temperature, lower level changes color and bar code can not be scanned.Yet, the shortcoming of this label is packing price code or the weight code that this label will form independent article, this means that different labels must be produced, distribute, store and be applied on the thousands of kinds of different article in a large number, these article circulate in the daily necessities transaction and require independent code signing.

Summary of the invention

The present invention is based on such understanding: for the scanning of bar code, not only need contiguous bar shaped in the code or the neutral zone between the symbol, and need by the bar code, be i.e. the quite wide neutral zone in two outside bar shaped outsides.By temperature indicator being placed on by the bar code, although with one of outer code bars leak-tight joint, can guarantee that also temperature indicator can not disturb scanning owing to overlapping bar code wholly or in part.As long as temperature indicator further from or near bar code, always can be between code bar and the temperature indicator that does not trigger in the normal scan of vendible product the tangible contrast effect of acquisition.

Description of drawings

Fig. 1 is the transparent view according to packing of the present invention, and shown temperature indicator is applied to by the lip-deep bar code of long side of packing;

Fig. 2 is the enlarged front view of bar code and temperature indicator, and shown temperature indicator is in initial condition;

Fig. 3 is the similar front view that shows the uniform temp indicating device that is in the triggering state;

Fig. 4 is by the sectional plane that amplifies turgidly according to first embodiment of temperature indicator of the present invention;

The similar cutaway view of second optional embodiment of Fig. 5 displays temperature indicating device;

Fig. 6 is the chart that shows the function of temperature indicator under the different temperature condition;

Fig. 7 is the transparent view that the optional embodiment together with bar code displays temperature indicating device partly cuts;

Fig. 8 be according to Fig. 7, shown in be in the elevation profile of amplification of the temperature indicator of initial unexposed state;

Fig. 9 is the similar elevation profile that shows the temperature indicator that is in the state of being ready to;

Figure 10 is the transparent view of bar code and temperature indicator, and shown temperature indicator is in the triggering state;

Figure 11 is and the cooresponding transparent view of Figure 10 the optional embodiment of the another one of displays temperature indicating device;

Figure 12 is the displays temperature indicating device elevation profile of the optional embodiment of another one again;

Figure 13 is the chart of explanation olive oil melting point;

Figure 14-the 16th by the temperature indicator elevation profile of the amplification of the optional embodiment of another one again, shows the temperature indicator that is in three different useful states; With

Figure 17 is the transparent view that is in the temperature indicator of final triggering state according to Figure 14-16.

The specific embodiment

Among Fig. 1, digital 1 ordinary representation is used for the packing of article, is preferably the packing that is used for frozen food, and this packing has flat parallelepiped basic shape in this example.In fact, packing can be made up of the container that relatively hard plank or cardboard are made.On a surface of packing, be the long side surface in this example, be applied with bar code 2 and according to temperature indicator 3 of the present invention.Bar code 2 can be made up of printing traditional price code and/or weight code (commercial product code) on the packaging, and bar code is provided by printing usually together with packing.Alternatively, bar code 2 can be included on a strap, label or the analogue that applies subsequently on the packaging.By the scanning of available code scanner, bar code can carry out common data acquisition in the computer system in shop.

Can see that from the enlarged view of Fig. 2 and Fig. 3 bar code 2 comprises a plurality of code bars with mutual varying width and position between two outer code bars 4.Described code bar forms elongated rectangular configuration together.Below code bar, a series of Arabic number are arranged usually, use " X " expression in this embodiment.For general bar codes technique can be scanned, leave neutral zone 5 in the perimeter of two outer code bars 4 without any literal or picture.In the practice, described zone has the width of 2.7mm at least.Code bar 4 can be that black, blueness or other are dark, and between the code bar and exterior regional 5 can be white, yellow or other are light.Importantly the absorption of code scanner Infrared or reflection are obtained contrast effect in this respect by different colours.

Shown in Fig. 2 and Fig. 3, amplifying, with 3 temperature indicators of totally representing, usually similar to WO 01/72601 disclosed temperature indicator, because comprising, it is included between antetheca 6 and the basal wall 7 with 8 contrast medium of representing, this contrast medium has a certain color or reflective characteristic at first state of temperature, but irreversibly changes into different colors or reflective characteristic when being converted to another state of temperature.Yet as seeing below, this temperature indicator is compared with the indicating device known to previous has other structure.

Two

walls

6 and 7 are included in and hold or seal in the shell 9 of contrast medium 8, and shell 9 is realized can be applicable to the label on the outer package or the form of label-like unit.Described label can have elongated rectangular basic shape, processes with the diaphragm of partially transparent, and it is along first minor face, 10 twofolds and at 11,12 and 13 other place, limits weld togethers of being delineated.Like this, in rectangular embodiment as shown in the figure, film is along two

long limits

12,13 and minor face 11 welding relative with the limit 10 of twofold.Antetheca 6 comprises opacity and clear area.More properly, the clear area of relative narrower or window 14 are arranged near 10 places, limit, and residual surface is covered by opacity 15 or forms.In described opacity 15, also there are a plurality of transparent sign fields 16, this transparent sign field is the form (letter forms word STOP together) with letter in this example.Be preferably adhesive phase (not showing) at the back side of being close to surface of package of basal wall 7.

For reflective infrared light, antetheca 6 should be light color, for example white or yellow.Same reason, the front of basal wall 7 also should be light color.Alternatively, basal wall can be transparent.

Comprise two kinds of different liquid in this example with 8 contrast medium of totally representing, represent and be called indicating liquid with 17 for first kind.Represent and be included in one or more rupturable annular seal spaces 19 that sealing chamber 19 is instructed to liquid 17 at least in part and surrounds for second kind with 18.Hereinafter liquid 18 is called phase-change liquid.The characteristic of

liquid

17,18 is that they have different solidfying points or eutectic temperature usually.At least a liquid, promptly phase-change liquid 18 contains water and the low additive of one or more solidfying points.In addition, liquid 18 contains color additives.Suitably, liquid may only be made up of water, although also may comprise alcohol.According to a preferred embodiment of the invention, the salt of getting permission those types of using in food can be used as solidfying point and reduces additive.Preferably, the additive of liquid is made up of at least two kinds of salt mixing separately, for example the chloride separately and the sulfate of calcium, potassium and sodium.Especially, be preferably sodium chloride (NaCl) and sodium sulphaste (Na ₂SO ₄) compound, itself and the mixed eutectic temperature of water can be determined simply by the quantity that changes salt in the water.Therefore, at H ₂O, NaCl and Na ₂SO ₄Compound in, can be in-1 ℃ to-21 ℃ range of temperatures high precision ground set eutectic temperature.The preferred temperature value that is used for quick-frozen food is generally-18 ℃.In this case, the eutectic temperature of indicating liquid 17 can be set at-14 ℃, and the eutectic temperature of phase-change liquid 18 can be set at higher temperature-12 ℃.

With as the mode identical according to the known temperature indicating device of WO 01/72601, the low temperature resistant material that does not become fragile or do not degrade of shell 9 usefulness is made.Simultaneously, rupturable shell/a plurality of shells or interior envelope/a plurality of interior envelope 19 usefulness membrane materials are made, and this membrane material keeps basic elasticity or flexibility above zero, but is more becoming fragile or degradable under the low temperature.Article in being contained in packing 1 begin when freezing, and following variation takes place temperature indicator: when temperature when room temperature begins to descend, heat is delivered to the environment of cooling from the housing of

liquid

17,18 by separately.When the temperature in the phase-change liquid 18 descended, the volume of liquid also reduced in housing 19 volume reducing separately, and its material becomes more crisp.When temperature dropped to-12 ℃, liquid 18 froze and begins and expands.(drop to-14 ℃) subsequently, liquid 17 also begins to freeze and expand.When ice expanded in annular seal space 19, crackle appearred in annular seal space, has occurred the irreversible circulation passage with ice/liquid 17 thus.The ice that is formed by indicating liquid 17 can expand not destroying or influence under the situation of housing 9, can keep flexibility and compactness because the material in the described housing is compared with the material of annular seal space 19 under quite low temperature.In this case, promptly as long as temperature is lower than-12 ℃, because all be in the ice state, any reaction can not take place between liquid 17,18.Temperature indicator all set now.

If temperature indicator 3 is that ice cube 17 is ice cube 18 thawings then and reverts to liquid state owing to be exposed under the situation that is higher than-12 ℃ and will have by mistake been thawed for a long time at first.Because crackle has appearred in annular seal space 19 under freezing situation, because liquid 18 contains colorant, liquid 18 can infilter liquid 17 and make liquid 17 painted.In fact described colorant can be formed with pigment, for example gets permission the pigment of those types of using in food.By the chemical reaction between liquid come to liquid 17 provide essential painted also be feasible.Therefore, liquid 17 changes over opaque, dark state by initial transparent state in known manner by itself.This state variation is irreversible and existence gone down, even packing and the thing that wrapped are frozen once more.

The explanation of described course of defrosting such as Fig. 6 n-lustrative ground, the solidfying point of suppose that the solidfying point of indicating liquid is-14 ℃ and phase-change liquid 18 is-12 ℃.In the course of defrosting, will be elevated to-14 ℃ up to phase F1 from-18 ℃ of linearities in the temperature of time period T1 internal indicator.Indicating device only contains ice then.In time period T2, outer ice mass 17 is melted into liquid, and during this period of time temperature constant be-14 ℃ up to phase F2.Temperature linearity is elevated to-12 ℃ up to phase F3 in time period T3 then.In time period T4, ice cube thawing and temperature indicator begin to change color in the annular seal space during phase F4.At the 5th phase F5, the whole things that wrap in the temperature indicator all are melted into liquid, and indicating device is triggered because indicating liquid has been colored.

If temperature indicator is exposed to the temperature that rises to phase F3, and freezing once more to below-14 ℃, indicating device will not turn back to and trigger, colored state not.If expose through phase F3, indicating device will be different and be triggered whole or in part according to the driven degree of phase F4 and F5.

In fact, the volume that should guarantee phase-change liquid 18 is compared little a lot with the volume of indicating liquid 17.Can guarantee that like this annular seal space under triggering state not visually is not easy to perceive, if particularly when they and the remainder of basal wall have identical color or reflective characteristic.The outside that annular seal space is placed on

rectangular territory

14,16 also is feasible.Yet triggering liquid 17 after stain, dark color will occur clearly by transparent region 14,16.This will hinder the scanning of bar code 2, because surface region 14 is covered with outer code-bar 4 exterior neutral light districts 5.Because after triggering temperature indicator, described field color deepens, general bar codes technique can not scan again.Simultaneously, people's eyes can be observed article owing to thaw no longer effectively, clearly appear on the antetheca of temperature indicator, as shown in Figure 3 with the caution symbol of word " STOP " form.

As long as temperature indicator is ready to, but also be not triggered, as shown in Figure 2, can realize conventional code scanning under the situation of not adding to the difficulties in every respect, because temperature indicator does not have cover strip font code anywhere.

Among Fig. 5, shown the optional embodiment of temperature indicator, one side be provided with optic fiber element 20 at indicating device towards bar code according to it.As long as contrast medium 8 is transparent or reflective, optic fiber element is transparent or reflective, but in order to make the scanning of bar code become impossible by overlay area 5, optic fiber element becomes opaque or extinction after indicating device triggers.

In fact, temperature indicator should be placed to its minor face in the distance of the outer code-bar 40-3mm of distance bar code 2, more suitably is 0.2-2.0mm.

Optional embodiment of the present invention

With reference now to the other embodiment that temperature indicator is described, Figure 14-17.This embodiment is used for the temperature or the marketability monitoring of deep-frozen goods.

In this example, temperature indicator preferably includes adhesives (not showing) for have label form exposure, appreciiable antetheca 6 and the basal wall 7 hidden at application state, can stick on the packing 1 by adhesive label.In fact, label can be the form of the housing 9 made with plastic foil or plastic film, and housing 9 is 10 folding and be welded along two

long limits

12,13 and with relative minor face 11 along an end limit.Described plastic film can have or the antetheca 6 of transparent window all transparent or that surrounded by zone of opacity.Film defines the space of a hollow, and it holds pory capillary adsorption plant 8, for example with the form of paper slip band or analogue, forms the contrast medium of indicating device.In other words, film forms the housing around band, preferably in the mode of the outside closed contact of housing and band.

In addition, in the inside of housing 9, an annular seal space that contains liquid is set at least.Shown in preferred embodiment in, introduced two such annular seal spaces 19, they very closely are placed in the zone on end limit 11 of label mutually.Each independent annular seal space is all made by for example suitable plastic films material, and this membraneous material for example near 0 ℃, keeps basic elasticity or flexibility, but more becoming fragile under the low temperature in a certain temperature, for example is lower than-16 ℃.It is passable to be included in the liquid that the usefulness 18 in the independent annular seal space represents, for example is made up of the compound of a certain ratiometric alcohol and water, and the solidfying point of its liquid mixture is under this ratio, for example-16 ℃.Such liquid mixture is colourless and transparent.

The test that forms basis of the present invention has shown that paper has different separately photometric characteristics under dry with wet state.More properly, top white or light paper is opaque under drying regime, and eyes can only be seen the surface of paper and can not see the fibroreticulate inside of paper.Yet, in case becoming, fleece wets, because fibroreticulate at least outermost layer can be seen through, it is transparent that paper becomes.This phenomenon is used in the present invention in such a way: band 8 is provided with one or more traces, and these traces see it is sightless from top when band is drying, but these traces are appreciiables when band becomes wet.Although the quantity of trace, shape with and position in fleece can change in many ways within the scope of the invention, shown two

traces

21 and 22 according to the example of Figure 14-17, trace is applied to the back or the bottom of band 8.In this, what should remind is that the top of band is covered by overlay, therefore appreciiable always concerning eyes, and the back of band is towards packing 1, therefore do not have to expose (if antetheca is a partially transparent in viewer's direction, by the window of

corresponding trace

21,22, only the part on the top below window yes can see).The trace 21 that is positioned at the immediate area on end limit 10 is made up of the edge strip that extends along the tag width main portion, and trace 22 is made up of a plurality of caution triangles.Different traces preferably adopts different colors, yet, always should depart from the color of band 8.Band is preferably white or is the Infrared that light color uses with the reflection code scanner at least.The color of

trace

21,22 usually should be darker than the white or the light color of band 8.Preferably, the color of trace 21 be black and trace 22 color can for, for example, yellow, red or orange.

Although the series of label processing can be accomplished in several ways, the band 8 of carrying trace should preprinted on its one side, be included in then in the twofold plastic film that connects along three side welds.Before the sealed plastic film, insert hydraulic seal chamber 19, insertion can perhaps realize by being placed between band and the housing on every side 9 by inserting band (for example inserting in the counter bore of band) in advance.

Long-time arbitrarily after processing, disclosed temperature indicator/label is ready to and can have used, more properly, and the memory cycle of the frozen food that should begin to pack.Only importantly ready in this label can not be exposed to and be lower than in the monitored limit temperature (for example-16 ℃).Traditionally, being chilled in of frozen food realized under the low-down temperature to quicken refrigerating process.In the inside of temperature indicator following variation takes place: when temperature began to descend from room temperature, heat was delivered to the environment of cooling by housing from the hydraulic seal chamber.When temperature drops to, in the time of for example-16 ℃, the liquid 18 in the annular seal space freezes and begins and expands.Simultaneously, the material of capsule walls becomes fragile, and described expansion causes annular seal space break (be actually and form crackle on capsule walls).Break and mean between the inside of annular seal space and paper fleece on every side and set up irreversible circulation passage.Yet, as long as temperature is lower than described limit, does not have liquid and overflow from annular seal space, solid-state because liquid also is in, more properly be ice.Temperature indicator all set now.

Yet, if pack 1 and temperature indicator 3, under some situation during the carrying from the producer to customer, having been thawed owing to be exposed to for a long time to be higher than under the ultimate temperature, ice will melt and revert to liquid state.Therefore the liquid (seeing Figure 15) that triggers at first is sucked in the fleece of next-door neighbour's annular seal space 19 (seeing Figure 16), and the capillary that continues absorption means that band becomes wet fully, as shown in figure 17.In this, it is transparent that band becomes, and makes two

traces

21,22 occur from the outside of label.

The present invention also not only is applied to such packing that contains frozen food.To then describe the summary of a plurality of optional embodiment below, these embodiment are particularly suitable for the marketability monitoring of chilled goods, promptly are stored in the article that are lower than room temperature but are higher than freezing point temperature, for example+4 ℃ or+8 ℃.

Optional embodiment according to Fig. 7-9 is particularly suitable for chilled products, has the semi plastic viscosity as the liquid of wetting agent when being lower than a certain range of temperatures value, becomes liquid when being higher than this range of temperatures value.Usually for chilled products, chilled food particularly, selected limit should be in 0 ℃ to+12 ℃ range of temperatures, more suitably+2 ℃ and+10 ℃ between.For special food, limit may be defined as+4 ℃ or+8 ℃.

Because the liquid of being discussed should have the ability of changing or be transformed into another kind of viscosity state from a kind of viscosity state, more properly, be low viscosity state and on the one hand on the other hand for semi plastic or probably between the high viscosity state, the temperature around this depends on.Described liquid is called invert liquid hereinafter.

The selection of invert liquid is determined that by multiple factor one of them is the attribute of connection with wrapping of piece.Therefore, if article, should be selected non-poisonous and/or chemically sluggish liquid by food composition.Therefore, also be for this purpose, vegetable oil or animal oil are the adequate types of invert liquid, it has melting point or viscosity temperature transition in 0 ℃ of-+12 ℃ of scope.The test that forms basis of the present invention has shown that olive oil is particularly suitable for as invert liquid.Therefore, provide the overview of actual tests below, with reference to the chart of Figure 13.

A kind of olive oil that is labeled as " BERTOLLI GENTILE; Extra Vergine " is cooled in refrigerator+and 3 ℃, take out sample then and be placed under the room temperature condition measuring the viscosity of temperature change and oil, per minute is measured once in time of 6 minutes altogether.Be the result of a measurement of tabulated form below.

Time (minute)	Temperature (℃)	Viscosity
Time (minute)	Temperature (℃)	Viscosity	0	+3.4	Semi plastic, sweet shape
1	+4.5	Semi plastic, sweet shape	0	+3.4	Semi plastic, sweet shape
1	+4.5	Semi plastic, sweet shape	2	+6.0	The liquefaction sign appears
3	+7.5	The liquefaction beginning	2	+6.0	The liquefaction sign appears
3	+7.5	The liquefaction beginning	4	+8.6	Glue
5	+9.8	Low viscosity (LV)	4	+8.6	Glue
5	+9.8	Low viscosity (LV)	6	+10.3	Low viscosity (LV)

Therefore ,+6.0 ℃ and+8.6 ℃ between in 2.6 ℃ of temperature intervals of relative narrower, the olive oil of discussion converts in temperature from noncurrent, semi plastic stage and is higher than+low viscosity state 8.6 ℃ the time.

In example according to Fig. 7-9, above-described invert liquid 18 is comprised in the annular seal space 19 that is connected with label by welding material part 25, comprises one or more weakening parts that can form the circulation open circuit between annular seal space and band 8 in the welding material part 25.In this embodiment, band 8 has three

traces

21,22 and 23 on its bottom.Realize starting (priming) by mechanically pushing annular seal space 19 in this embodiment.Described pushing can be by craft, and for example by means of finger, perhaps the mechanical system by means of instrument provides, and this instrument is used for label applied to the packaging.When the pressure of sealing intracavity liquid rises to when enough high, the reduction material partial rupture of valve acting in the welding 23 forms the circulation clear passage of liquid to band.Be lower than to carry out in the environment of limit and start by beginning temperature around, limit is by the melting point of liquid (for example+4 ℃) decision, yet, guaranteed liquid can not be immediately by inspiration band 8 fully.Therefore, be still semi-plastic liquid and will only can arrive the end of band.In fact, together be applied on the packing 1 indicating device and/or bring cooling space into, article in manufacturer/wholesale dealer or shop for example, annular seal space 19 is punctured the earliest.In this state, the not influence of liquid body of band 8.In other words,

trace

21,22 and 23 also is hidden under the paper fleece superficial layer outwardly.

Suppose range of temperatures value for the article discussion be set at+4 ℃.As long as ambient temperature is lower than limit, label keeps initial condition.Yet if temperature surpasses+4 ℃ during article storage, the viscosity of liquid will be transformed into liquid from semi plastic.By the capillary effect in the porous band 8, liquid is sucked into band and complete moistening band, and

trace

21,22 and 23 occurs, and from the outside of label, as seen trace becomes.Like this, the viewer knows temperature value of overstepping the extreme limit.

According to the present invention, also be applied to according to the label of Fig. 7-9 in the immediate area of bar code 2 of packing 1.More properly, the outer code-bar 4 of end limit 10 next-door neighbours of label is placed.In fact, trace 21 dark color of label, similar limit piece should be placed on apart from the distance of the outer code-bar 40.2-2.0mm scope of bar code.Like this, guaranteed as long as band is dry and conventional code scanning is carried out on the ground of obstruction that just can not have that be white/light colored, in case moistening but band becomes, dark limit piece 21 will occur and make code scans to become impossible, because the limit piece has absorbed the Infrared of code scanner.

Embodiment illustrated in fig. 11 and difference front embodiment only is that trace 22 is relatively large leg-of-mutton forms, and such purpose is to make the continuous infiltration of liquid in the paper slip band as seen.As delineating in Figure 11, described triangle can comprise the two or more zones with different colours.

Among Figure 12, shown another optional embodiment,, be compressed at the material of this place's paper slip band 8 comprising constriction 26.Like this, be delayed or weaken towards the infiltration of the liquid of terminal 10 directions.

Make fleece have the part spaced apart from each other of different porosities or different capillary effects, also can provide the seepage of low-viscosity (mobile) liquid in fleece to postpone.By postpone fluid seepage with suitable method, guarantee that article must be exposed in the deletrious temperature that has raise a period of time with trigger indicator.Short time surpasses the range of temperatures value, and for example therefore the customer will can not cause indicating device to trigger during article stop (the longest usually about 30 minutes).

The above-described semi plastic invert liquid relevant with Fig. 7-12 also can be used in by mode shown in Figure 14-17 and be combined in the annular seal space in the fleece.Even in a combination, in the annular seal space semi plastic invert liquid is housed, also be feasible and frozen liq is housed in the another one.

The feasible modifications of invention

Above not being solely limited to, the present invention do not describe and the accompanying drawing illustrated embodiment.Can store in the packing, for example medicine, sensitive film or the like.In addition, use temperature indicator according to the present invention to detect/register freezing rather than thaw whether to take place also be feasible.Therefore, in fact, temperature indicator also can be used on the canister.Therefore that paint often is based on water and be subjected to freezing influence.If temperature indicator is applied, for example,, just can show whether container/package has been exposed under the unallowed temperature in the lid outside.Be lower than allowable temperature and continue descend if temperature drops to from 0 ℃, by the freezing of the phase-change liquid in the temperature indicator with break, and painted realization of indicating liquid shown.In addition, being exposed to outer antetheca 6 can be thicker in to obtain bigger heat insulation capacity than basal wall 7.By the heat insulation capacity of described increase, can realize between the hand of temperature indicator and grasping packing that the temperature of indicating liquid does not rise immediately after the short-time contact.In addition, temperature indicator can comprise the annular seal space with phase-change liquid of variable number.In this, should be mentioned that it is that the storage and the boundary of the phase-change liquid relevant with indicating liquid can realize in multiple other modes, for example, by phase-change liquid being encapsulated in a plurality of little, balls spaced apart from each other or the bubble.

In addition, within the scope of the invention, it is feasible that the antetheca and the basal wall that comprise contrast medium with another mode impenetrable liquid ground are provided, and this mode is different from the component form with the continuous housing of plastic film.Therefore, if contrast medium is made up of wettable paper slip band or fleece, it is possible coating (comprising injection) particulate material to strip face, can form liquid-tight film like this.Although the EAN code is the most common form of merchandise codes, particularly for food, the present invention also is applicable to the merchandise codes of other types, and it uses bar shaped or similar bar symbol.The example of code is interleaved 2/5, code 39, code 128 and PDF-417 like this.The characteristic of these codes is that also bar shaped or symbol form rectangular configuration, can apply temperature indicator in its scope.

Claims

1, a kind of packing that is used for stores under anticorrosion state, temperature in the packing can not surpass a certain limit, this packing comprise on the one hand this class bar code (2), this bar code (2) be included between two outside extinction code bars (4) by a plurality of centres spaced apart from each other, neutral light launch area (5) and similarly extinction code bar or mark (4) and the externally outside neutral zone (5) in the code bar outside; This packing also comprises temperature indicator (3) on the other hand, temperature indicator (3) comprises the contrast medium (8) that is included between antetheca (6) and the basal wall (7), this medium is transparent or reflective under first state of temperature, but is triggered when being converted to another state of temperature and irreversibly changes into opaque or the extinction color; It is characterized in that, temperature indicator (3) is arranged in bar code (2) the other next-door neighbour outer code bars (4), but there is not the cover strip font code, so that on the one hand, do not hinder bar code scanning at first state of temperature, but then, after triggering, make scanning become impossible, be more accurately by make outside neutral zone (5) become opaque or extinction make scanning become impossible.

2, pack according to claim 1, it is characterized in that temperature indicator (3) is made up of the label-like unit that is applied to the exterior separation of packing (1).

3, pack as claimed in claim 1 or 2, it is characterized in that, two walls (6,7) of temperature indicator (3) are included in continuous and at least in the diaphragm of partially transparent (9), and the limit (10) of the outer code bars (4) of diaphragm in the most close bar code (2) is by twofold.

4, as packing as described in claim 2 or 3, it is characterized in that, tag unit has elongated rectangular basic shape, and the film limit of twofold is made up of first minor face (10), and two walls (6,7) interconnect along two long limits (12,13) and second minor face (11).

5, as packing as described in claim 2 or 3, it is characterized in that, temperature indicator (3) comprises optic fiber element (20) along the limit towards bar code (2), as long as contrast medium is transparent or reflective, optic fiber element (20) is exactly transparent or reflective, but optic fiber element (20) becomes opaque or extinction when temperature indicator is triggered.

6, as packing as described in any claim in front, it is characterized in that temperature indicator (3) is arranged to one bar limit (10) at distance outer code bars (4) 0-3mm, more suitably is in the distance of 0.2-2.0mm.

7, as packing as described in any claim in front, it is characterized in that, the antetheca of temperature indicator (6) comprises and the clear area (14) that links to each other on one side, with and in have the opacity (15) of the transparent sign field of one or more secondarys (16), its objective is visually to be triggered by the warning reaction and display temperature indicator in the contrast medium (8).

8, as packing as described in any claim in front, it is characterized in that, the contrast medium of temperature indicator is made up of pory capillary adsorption plant (8), and it has a certain photometric characteristics under drying regime, and is had another kind of photometric characteristics by liquid (18) after moistening.

9, a kind of method of marking for the packing (1) that is used for stores under anticorrosion state, temperature in the packing can not surpass a certain limit, this method may further comprise the steps: provide this class extinction bar code (2) to packing, this bar code (2) be included between two outside extinction code bars (4) by neutral reflective areas (5) a plurality of centres spaced apart from each other and similarly extinction code bar (4) and the outside neutral zone (5) of staying the outer code bars outside; With apply temperature indicator (3), temperature indicator (3) comprises the contrast medium (8) that is included between antetheca (6) and the basal wall (7), described medium is transparent or reflective under first state of temperature, but is triggered when being converted to predetermined second state of temperature and changes into opaque or the extinction color in a kind of irreversible mode; It is characterized in that temperature indicator (3) is arranged in bar code (2) its outer code bars of other next-door neighbour (4), but does not have the cover strip font code.

10, as method as described in the claim 9, it is characterized in that temperature indicator (3) is arranged to one bar limit (10) at distance outer code bars (4) 0-3mm, more suitably is in the distance of 0.2-2.0mm.