SI25168A

SI25168A - The low temperature warning mark

Info

Publication number: SI25168A
Application number: SI201600090A
Authority: SI
Inventors: Gregor Marolt; Marjan Eftimov
Original assignee: Gregor Marolt; Marjan Eftimov
Priority date: 2016-03-30
Filing date: 2016-03-30
Publication date: 2017-10-30

Abstract

Izum omogoča označbo za opozarjanje na nevarnost ter metodo opozarjanja na nevarnost pri predhodno določeni temperaturi. Označba vsebuje prvi in drugi sloj. Vizualni kontrast med prvim in drugim slojem se reverzibilno spremeni pri predhodno določeni temperaturi. Vizualni kontrast se lahko poveča pri predhodno določeni temperaturi. Eden izmed prvega in drugega sloja lahko vsebuje barvilo, ki omogoča spremembo vizualnega kontrasta pri predhodno določeni temperaturi. Barvilo se lahko reverzibilno spremeni iz transparentnega ali prosojnega stanja v obarvano stanje pri predhodno določeni temperaturi. Označbo lahko uporabimo za opozarjanje na možnost nastanka poledice, ledu, snega ali žleda ter na posledično nevarnost zdrsa, padca, ali poškodbe zaradi ledu pri temperaturah nižjih od predhodno določene temperature.The invention provides an indication of danger and a method of warning of danger at a predetermined temperature. The marking contains the first and second layers. The visual contrast between the first and second layers reversibly changes at a predetermined temperature. Visual contrast can be increased at a predetermined temperature. One of the first and second layers may contain a dye that allows the visual contrast to be changed at a predetermined temperature. The colorant can be reversibly changed from a transparent or transparent state to a colored state at a predetermined temperature. The marking can be used to alert you to the possibility of icebreaking, ice, snow or lightning, and consequently the risk of slipping, falling or ice damage at temperatures below the predetermined temperature.

Description

OZNAČBA, KI OPOZARJA NA POLEDICO PRI NIZKIH TEMPERATURAHLABEL ALERT TO LOW TEMPERATURE

Predmet izuma je talna in/ali stenska označba, ki na podlagi spremembe temperature opozarja na poledico, oz. bolj natančno na nevarnost zdrsa, padca ali poškodbe zaradi ledu ali poledenele površine.The object of the invention is a floor and / or wall marking which, on the basis of a change in temperature, indicates an icy or more specifically, the risk of slipping, falling, or damage due to ice or icy surface.

Tehnični problem, ki ga rešuje izum, je takšna konstrukcija (izdelava) označbe, ki bo opozarjala na nevarnost poledice samo pri nizkih temperaturah, tj. ko dejansko obstaja možnost za nastanek poledenele površine. Hkrati pa bo celotna konstrukcija kompaktna in označba za svoje delovanje ne bo potrebovala nobenega vira napajanja.The technical problem to be solved by the invention is such a construction (construction) of a mark that will point to the danger of ice only at low temperatures, ie. when in fact there is a possibility of icy surface. At the same time, the whole structure will be compact and the label will not require any power source for its operation.

Znanih rešitev, ki opozarjajo na poledico, je precej. Najstarejša znana rešitev je po patentu GB2189919 (A). Po tem dokumentu je opozorilo namenjeno označbam na cestiščih. Rešitev je relativno omejena, saj opozarja samo uporabnike cestišč, medtem ko ne opozarja na poledico tam, kjer prav tako prihaja do velikega števila poškodb, tj. na stopnicah, pragovih, pločnikih, terasah, balkonih in ostalih pohodnih površinah, kjer je možen nastanek plasti ledu.There are many known solutions that point to ice. The oldest known solution is according to patent GB2189919 (A). According to this document, the warning is intended for road markings. The solution is relatively limited as it only warns road users, while it does not point to a freezing point where there is also a large number of injuries, ie. on stairs, sleepers, sidewalks, terraces, balconies and other hiking surfaces where ice is possible.

Druge znane rešitve so po patentih GB2265630 (A), GB2289707 (A), EP0955413 (A2), GB2487982 (A) in GB2487982 (A), ki so prav tako namenjene označbam cest in cestnih objektov. Poleg tega je znana rešitev tudi po dokumentu VV02007036740 (A1), ki pa ne omogoča pritrditve na pohodnih površinah.Other known solutions include patents GB2265630 (A), GB2289707 (A), EP0955413 (A2), GB2487982 (A), and GB2487982 (A), which are also intended to designate roads and road structures. In addition, there is a known solution according to document VV02007036740 (A1), which, however, does not allow mounting on hiking surfaces.

Skupna značilnost vseh navedenih rešitev je, da so usmerjene predvsem na opozarjanje uporabnikov cest in cestišč, torej voznikov. Problem, ki je ostal nerešen, je da ne omogočajo opozarjanja na nevarnost pešcev na najbolj izpostavljenih mestih, tj. na pohodnih površinah, kot so stopnice, pragovi, pločniki, terase, balkoni in podobne podlage, kjer se zgodi največ poškodb zaradi padcev in/ali zdrsov, kot posledica poledice in ledu.A common feature of all these solutions is that they are aimed primarily at alerting road users and road users, that is, drivers. The problem that remains unresolved is that they do not allow pedestrians to be warned in the most exposed places, ie. on hiking surfaces such as stairs, sleepers, sidewalks, terraces, balconies, and the like, where most falls and / or slip injuries occur as a result of ice and ice.

Po izumu je problem rešen z označbo, ki na podlagi spremembe barve ob nizki temperaturi opozarja na nevarnost zdrsa na poledeneli površini. Izum bo opisan na izvedbenem primeru in slikah, ki prikazujeta sl. 1 označba po izumu v ptičji perspektivi, sl. 2 označba po izumu v prečnem prerezu.According to the invention, the problem is solved by a marking which, due to the color change at low temperature, indicates the risk of slipping on the icy surface. The invention will be described in the embodiment and in the drawings illustrating FIG. 1 is a bird's eye view of the invention, FIG. 2 is a cross-sectional view of the invention.

V skladu s prvim aspektom izuma je pojav vidnega (tekstovnega in/ali simboličnega) opozorilnega znaka, ki se prikaže pri vnaprej določeni temperaturi okolice. Znak je sestavljen iz najmanj dveh slojev, pri čemer pride do reverzibilne spremembe kontrasta med plastema pri vnaprej določeni temperaturi.According to the first aspect of the invention, the appearance of a visible (textual and / or symbolic) warning sign is displayed at a predetermined ambient temperature. The sign consists of at least two layers, resulting in a reversible change of contrast between the layers at a predetermined temperature.

V skladu z drugim aspektom izuma je omogočena metoda opozarjanja na nevarnost poledice, in sicer preko ustrezne izbire prvega in drugega sloja, tako da se kontrast med njima reverzibilno spreminja pri vnaprej določeni temperaturi. Kontrast lahko dosežemo na podlagi različnih barv ali odtenka med prvim in drugim slojem. Kontrast med slojema se lahko reverzibilno poveča pri vnaprej določeni temperaturi, pri čemer se lahko vsaj eden izmed slojev reverzibilno spremeni iz transparentnega ali prosojnega stanja v obarvano stanje ali obratno.According to another aspect of the invention, a method of alerting to the icing danger is provided by appropriate selection of the first and second layers, such that the contrast between them changes reversibly at a predetermined temperature. Contrast can be achieved by different colors or hue between the first and second layers. The contrast between layers can be reversibly increased at a predetermined temperature, with at least one of the layers reversibly changing from a transparent or translucent state to a colored state or vice versa.

Najmanj eden izmed slojev lahko vsebuje barvilo, ki omogoča vizualno spremembo kontrasta pri vnaprej določeni temperaturi. Izbira barve barvila je lahko prilagojena namenu uporabe.At least one of the layers may contain a colorant that allows the contrast to be visually changed at a predetermined temperature. The color choice of the dye may be tailored to the purpose of use.

Drugi sloj je lahko obarvan, pri čemer lahko barvo prvega sloja izberemo tako, da maksimiramo kontrast med obema slojema pri vnaprej določeni temperaturi, ko se prikaže opozorilni signal. Barvilo je lahko termokromna barva.The second layer can be colored, whereby the color of the first layer can be selected by maximizing the contrast between the two layers at a predetermined temperature when a warning signal is displayed. The colorant may be a thermochromic color.

Temperatura, pri kateri pride do spremembe je lahko izbrana pri vrednosti, pod katero običajno pride do nastanka ledu. Predhodno izbrana temperatura je lahko v območju pod 8 °C.The temperature at which the change occurs can be selected at the value below which ice formation usually occurs. The pre-selected temperature may be in the range below 8 ° C.

Najmanj eden izmed prvega ali drugega sloja je lahko oblikovan v obliki opozorilnega znaka za nevarnost. Opozorilo je lahko podano v obliki enega ali več simbolov ali kot tekst. Tekst ali simboli so zato lahko prilagojeni tako, da izražajo opozorilo, specifično za nevarnost, ki preti pri vnaprej določeni temperaturi. Prvi sloj je lahko substrat in drugi sloj lahko prekriva vsaj del površine substrata. Drugi sloj lahko vsebuje barvilo, ki omogoča vizualno spremembo kontrasta pri vnaprej določeni temperaturi in ga je možno nanesti na substrat. Drugi sloj je lahko natisnjen na substrat. Drugi sloj je lahko transparenten ali prosojen pri temperaturi nad 3 °C.At least one of the first or second layers may be in the form of a hazard warning sign. The alert may be in the form of one or more symbols or as text. The text or symbols may therefore be adapted to express a hazard-specific warning threatening at a predetermined temperature. The first layer may be a substrate and the second layer may cover at least part of the surface of the substrate. The second layer may contain a colorant that allows the contrast to be visually changed at a predetermined temperature and can be applied to the substrate. The second layer can be printed on the substrate. The second layer may be transparent or translucent at temperatures above 3 ° C.

Substrat je lahko svetlikajoč. Drugi sloj je lahko nanesen tako, da prekriva svetlikajoči del substrata pri temperaturah pod vnaprej določeno temperaturo. Substrat je lahko papir, karton ali primeren plastični material, npr. polivinil klorid (PVC).The substrate can be shiny. The second layer can be applied to cover the illuminating portion of the substrate at temperatures below a predetermined temperature. The substrate may be paper, cardboard or suitable plastic material, e.g. polyvinyl chloride (PVC).

Označba je lahko opremljena z dodatnimi sloji. Označba je lahko opremljena s pritrdilnim sredstvom, ki omogoča pritrditev na tak način, da sta prvi in drugi sloj pri uporabi razvidna. Označba je lahko praktično ravna in ima na eni strani prvi in drugi sloj, na drugi stani pa pritrdilno sredstvo. Pritrdilno sredstvo lahko vsebuje samolepilno hrbtno stran.The marking may be provided with additional layers. The marking may be provided with a fastening means which enables the fastening in such a way that the first and second layers are visible in use. The marking may be practically flat and have a first and a second layer on one side and a fastening means on the other side. The fastener may contain a self-adhesive back.

Označba je lahko opremljena z ojačitvenim materialom, ki ji omogoča trdnost in rigidnost. Ojačitveni material lahko vsebuje ploščo, ki je lahko plastična, aluminijasta ali • · · katerega drugega trdnega materiala. Plošča je lahko opremljena s pritrdilnim sredstvom za pritrditev označbe na nosilni element v uporabi. Pritrdilno sredstvo lahko vsebuje vzmeti ali nosilce v kombinaciji z maticami in vijaki. Nosilni element je lahko stena, drog, stopnica, pločnik, prag ali katera druga pohodna površina. Plošča lahko služi dvema namenoma: daje trdnost in/ali omogoča mesto za pritrditev.The marking may be provided with a reinforcing material which gives it strength and rigidity. The reinforcing material may contain a plate that may be plastic, aluminum or any other solid material. The plate may be provided with a fastening means for affixing the marking to the supporting element in use. The fastening means may include springs or brackets in combination with nuts and bolts. The supporting element may be a wall, a pole, a step, a sidewalk, a threshold or any other hiking surface. The board can serve two purposes: it gives strength and / or allows a place for attachment.

Eden ali več delov označbe ima lahko večjo razvidnost. Eden izmed prvega ali drugega sloja lahko delno vsebuje del z večjo razvidnostjo. Označba je lahko opremljena z bolj razvidno obrobo in najmanj del prvega in drugega sloja je lahko znotraj obrobe označbe. Bolj razvidni deli so lahko refleksivni ali odsevni.One or more parts of the marking may have greater visibility. One of the first or second layers may partly contain a part with greater visibility. The marking may be provided with a more prominent border and at least part of the first and second layers may be within the border of the marking. More visible parts may be reflective or reflective.

Metoda opozarjanja lahko vključuje izpostavljanje označbe temperaturam v zunanjem prostoru. Zato je označba primerna zlasti za uporabo na prostem.The alert method may include exposing the mark to outdoor temperatures. Therefore, the marking is particularly suitable for outdoor use.

V nadaljevanju bo predstavljena ena izmed možnih izvedb označbe, ki je na sl. 1 prikazana v ptičji perspektivi, na sl. 2 pa v prečnem prerezu.In the following, one of the possible embodiments of the marking shown in FIG. 1 is a bird's eye view of FIG. 2 in cross section.

Sl. 1A prikazuje stanje označbe nad predhodno izbrano temperaturo, kjer označba ne prikazuje opozorila na nevarnost poledice. Zaradi transparentnosti drugega sloja je tako razviden samo prvi sloj, tj. kartonski substrat. V primeru sl. 2A pa je prikazano stanje označbe pod predhodno izbrano temperaturo, ko je jasno razvidno opozorilo na poledico in nevarnost za zdrs in/ali padec. Ker je temperatura prostora v tem primeru pod vnaprej določeno temperaturo, se termokromna barva v drugem sloju obarva in tako povzroči jasno razvidno vizualno opozorilo na možnost nastanka poledice in nevarnosti za zdrs.FIG. 1A shows the status of the marking above a pre-selected temperature where the marking does not show a warning of icing. Because of the transparency of the second layer, only the first layer is visible, ie. cardboard substrate. In the case of FIG. 2A shows, however, the status of the marking below a pre-selected temperature, with a clear warning of ice and the risk of slipping and / or falling. Because the room temperature is below a predetermined temperature in this case, the thermochromic color in the second layer is colored, thus giving a clearly visible visual warning of the possibility of icing and the risk of slipping.

Predstavljena izvedba na sl. 1 je primerna za uporabo na prostem, kjer obstaja nevarnost za nastanek poledice, ledu, snega ali žleda na pohodnih površinah kot posledica zimskih razmer.The embodiment shown in FIG. 1 is suitable for outdoor use where there is a risk of ice, ice, snow or ice on hiking surfaces as a result of winter conditions.

Termokromno barvilo, ki je uporabljeno v predstavljeni izvedbi je izbrano tako, da preide iz brezbarvnega stanja v obarvano stanje in na ta način omogoči vizualno spremembo kontrasta med prvim in drugim slojem pri 3 °C. Označba zato opozarja na nevarnost poledice pod 3 °C. Ko se temperatura okolja dvigne nad 3 °C, barva termokromnega barvila izgine in opozorilo postane transparentno, oziroma nevidno.The thermochromic dye used in the present embodiment is selected to go from a colorless state to a colored state, thereby allowing a visual contrast change between the first and second layers at 3 ° C. The marking therefore points to the risk of ice below 3 ° C. When the ambient temperature rises above 3 ° C, the color of the thermochromic dye disappears and the warning becomes transparent or invisible.

Predstavljena izvedba je primerna predvsem za uporabo na prostem. Pri padcu zunanje temperature pod 3 °C, ko se pojavi nevarnost za nastanek poledice, ledu, snega ali žleda, pride do prehoda v stanje, ki ga prikazuje sl. 1B, kjer je jasno razviden kontrast med prvim in drugim slojem označbe. Prva in druga plast morata biti zato izbrani tako, da je kontrast med njima največji. V predstavljenem primeru je prva plast bele barve, medtem ko je druga v obarvanem stanju temno modra. Modra barva ima zelo dober kontrast z belo, poleg tega pa nas spominja na nizko temperaturo in led, ki je z njo povezan. Poleg simboličnega opozorila je možna izvedba oznake tudi z dodatnim tekstovnim sporočilom, kot je denimo »POZOR, DRSI!«The presented version is particularly suitable for outdoor use. When the outside temperature drops below 3 ° C, when there is a risk of ice, ice, snow or ice, the transition to the state shown in FIG. 1B, where the contrast between the first and second layers of the marking is clearly evident. The first and second layers must therefore be selected in such a way that the contrast between them is greatest. In the case presented, the first layer is white, while the second is colored dark blue. Blue has a very good contrast to white, and it reminds us of the low temperature and the ice associated with it. In addition to the symbolic warning, it is also possible to carry a tag with an additional text message such as "ATTENTION, DRESS!"

Zadnja stran označbe (ni prikazana), je stran, ki je na nasprotni strani od vidne strani. Zadnja stran je opremljena z adhezivnim materialom, ki omogoča pritrditev označbe na stopnice, prag, steno ali kateri drugi nosilni element. Alternativno je možen tudi debelejši in bolj rigiden prvi sloj ali dodatna stabilizacijska plast 4 na sl. 2, npr. iz plastike ali aluminija, preko katere lahko označbo pritrdimo direktno na steno ali pohodno površino s pomočjo adhezivnega materiala ali matice in vijakov.The last page of the tag (not shown) is the page that is opposite the visible page. The back side is provided with an adhesive material that allows the marking to be affixed to the steps, threshold, wall or any other supporting element. Alternatively, a thicker and more rigid first layer or an additional stabilization layer 4 in FIG. 2, e.g. made of plastic or aluminum, through which the marking can be fastened directly to the wall or to the surface by means of adhesive material or nuts and screws.

Na sl. 2 je poleg prvega sloja 2, drugega sloja 3 ter stabilizacijske plasti 4 prikazana še vizualno transparentna UV-zaščitna plast 1. Namen slednje je zaščita barve pred UV-svetlobo, ki lahko povzroči razpad ali trajno spremembo barve. Glede na namen uporabe plasti 1 in 4 nista nujno potrebni.In FIG. In addition to the first layer 2, the second layer 3 and the stabilization layer 4, a visually transparent UV protective layer 1 is shown. The purpose of the latter is to protect the color from UV light, which can cause decay or permanent color change. Depending on the purpose of application, layers 1 and 4 are not necessarily necessary.

Pred uporabo in pritrditvijo je potrebno odstraniti zaščitno folijo, ki prekriva adhezivno plast na zadnji strani označbe. Alternativno je označba lahko opremljena za zavrtanimi luknjami, ki omogočajo pritrditev s pomočjo matic in vijakov.Prior to use and attachment, the protective film covering the adhesive layer at the back of the marking must be removed. Alternatively, the marking may be provided behind rotatable holes that allow for mounting by means of nuts and bolts.

Označbo lahko postavimo na mesta, kjer obstaja nevarnost za nastanek poledice, ledu, snega ali žledu, kot na primer pred vhodi v stavbe, stopnice, pragovi, pločniki in ostale pohodne in stenske površine. Označba je še posebej primerna za uporabo v okolici šol, zdravstvenih domov, bolnic, avtobusnih in železniških postaj ter ostalih javnih prostorih. Prav tako je možna uporaba pred lokali, saloni, podjetji, skladišči in ostalimi poslovnimi ali privatnimi prostori.The marking can be placed in places where there is a risk of ice, ice, snow or ice, such as before entrances to buildings, stairs, sleepers, sidewalks and other hiking and wall surfaces. The marking is especially suitable for use in the surroundings of schools, health centers, hospitals, bus and train stations and other public spaces. It can also be used in front of outlets, lounges, businesses, warehouses and other commercial or private premises.

Kontrast med prvim in drugim slojem ter s tem pojav opozorila na poledico določa zunanja temperatura. V primeru ko je temperatura višja od 3 °C, kontrast med prvim in drugim slojem ni viden, medtem ko pri temperaturi nižji od 3 °C drugi sloj spremeni barvo, kar povzroči posledičen prikaz opozorila, da je podlaga, po kateri hodimo/stojimo, nevarna za zdrs in/ali padec in/ali poškodbo zaradi tega.The contrast between the first and second layers, and thus the occurrence of the icing warning, is determined by the outside temperature. When the temperature is higher than 3 ° C, the contrast between the first and second layers is not visible, while at temperatures below 3 ° C, the second layer changes color, resulting in a warning message that the base on which we walk / stand is dangerous for slipping and / or falling and / or injury as a result.

Kadar nevarnost za poledico ne obstaja, tj. pri temperaturah nad 3 °C, se barva oznake spremeni, tako da opozorilo na poledico ni vidno. To je bistvena prednost pri uporabnikih, saj se s tem zmanjša možnost ignoriranja opozorila, ker ne prihaja do lažnih opozoril (npr. poleti pri visokih temperaturah). Posledično se zmanjša število zdrsov, padcev in poškodb in tako poveča varnost uporabnikov. Nalepka za svoje delovanje in vzdrževanje ne zahteva nobenih dodatnih stroškov ali virov napajanja (npr. baterije, elektrika, itd.).When there is no danger of ice, ie. at temperatures above 3 ° C, the color of the mark changes so that the ice warning is not visible. This is a significant advantage for users, as this reduces the possibility of ignoring the alert because false alerts do not occur (eg in summer at high temperatures). As a result, the number of slips, falls and injuries is reduced, thus increasing the safety of users. The label requires no additional costs or power sources (eg batteries, electricity, etc.) for its operation and maintenance.

Claims

PATENT APPLICATIONS

1. A hazard warning label, characterized in that it displays a warning at a predetermined temperature, consisting of a first and a second layer, between which visual contrast is reversibly changed at a predetermined temperature.

The mark according to claim 1, characterized in that the visual contrast is a different color between the first and second layers.

A mark according to claim 1, characterized in that the visual contrast is a different shade of color between the first and second layers.

Marking according to any preceding claim, characterized in that the visual contrast between the first and second layers is reversibly increased at a predetermined temperature.

Marking according to any preceding claim, characterized in that the visual contrast between the first and second layers is reversibly increased by changing from a transparent state to a colored state at a predetermined temperature.

A label according to any preceding claim, characterized in that one of the first and second layers contains a dye that changes the visual contrast at a predetermined temperature.

7. Marking according to claim 6, characterized in that the dye reversibly changes the coloration from transparent to blue at a predetermined temperature.

8. An indication according to claims 6 and 7, characterized in that the second layer contains a colorant and the first layer contains at least one color chosen to emphasize visual contrast with the colorant at a predetermined temperature when a warning message is displayed.

The label according to claims 6-8, characterized in that the dye is a thermochromic color.

Marking according to any of the preceding claims, characterized in that the predetermined temperature is lower than 8 ° C.

Marking according to all the preceding claims, characterized in that one of the first and second layers is made in the form of a warning sign.

A tag according to any of the preceding claims, characterized in that the alert contains symbols and / or text.

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13. Marking according to any of the preceding claims, characterized in that the warning is selected in such a way as to indicate the specific danger expected at a predetermined room temperature.

A label according to any of the preceding claims, characterized in that the first layer is a substrate and the second layer at least partially overlaps the substrate.

15. Marking according to claim 14, characterized in that the second layer contains a dye that allows visual contrast at a predetermined temperature and is applied to the substrate.

16. Label according to claims 14 and 15, characterized in that the second layer is printed on the substrate.

The label according to claims 14-16, characterized in that the second layer is transparent at a temperature above 3 ° C.

18. The label according to claims 14-16, characterized in that the second layer is translucent at a temperature above 3 ° C.

19. Marking according to claims 14-18, characterized in that the text is printed on the substrate.

20. An indication according to claims 14-19, characterized in that part of the substrate is luminous.

21. Marking according to claim 20, characterized in that the second layer is applied so as to cover the illuminating portion of the substrate at a temperature lower than the predetermined temperature.

The label according to claims 14-21, characterized in that it is a substrate made of plastic material.

23. The label of claims 14-22, characterized in that the substrate is polyvinyl chloride (PVC).

24. The label of claims 14-21, wherein the substrate is of cardboard or paper.

The label of claims 14-21, characterized in that the substrate is of metallic material.

26. The marking of claims 14-21 and 25, characterized in that it is an aluminum substrate.

• · ·

Label according to any of the preceding claims, characterized in that it has a fastening means so that the first and second layers are visible when used.

28. Marking according to claim 27, characterized in that it is practically flat and has two sides, the first and second layers being located on one side and the fixing means on the other.

29. An indication according to claims 27 and 28, characterized in that the fastening means comprises a self-adhesive material.

30. Marking according to any of the preceding claims, characterized in that it is provided with a support material which gives rigidity to the mark.

31. Marking according to claim 30, characterized in that the support material comprises a plate.

32. Marking according to claim 31, characterized in that the panel is made of plastic, aluminum or other metallic material.

33. The mark according to claim 31, characterized in that the plate is provided with a fastening material that allows it to be fastened to the carrier in use.

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34. Label according to any of the preceding claims, characterized in that it contains one or more visible parts.

35. Label according to any of the preceding claims, characterized in that one of the first and second layers is at least partly made up of a more clearly visible part.

36. Labeling according to any of the preceding claims, characterized in that it has a clearer edge that restricts and defines a central portion, within which at least part of the first and second layers are.

37. The mark according to claim 30, characterized in that the more clearly visible edge contains material from the group of reflective and luminescent materials.

38. A method of warning of a predetermined temperature hazard, characterized in that it comprises the following points: providing a marking comprising the first and second layers; selecting the first and second layers so that the visual contrast between the first and second layers reversibly changes at a predetermined temperature; and exposure of the label to ambient temperature.