IT8921929U1

IT8921929U1 - THERMAL INSULATION SHEET IN ALUMINUM LAYERS INTERLAYED WITH THERMO-RESISTANT MATERIAL FOR OBTAINING ENCLOSURES INTENDED FOR THE TEMPERATURE STORAGE OF HOT FOODS

Info

Publication number: IT8921929U1
Application number: IT1989U21929U
Authority: IT
Inventors: Raffaele Bagnulo
Original assignee: Raffaele Bagnulo
Priority date: 1989-10-16
Filing date: 1989-10-16
Publication date: 1991-04-16
Also published as: IT219036Z2; IT8921929V0

Description

DESCRIZIONE del modello di utilit? avente per titolo: DESCRIPTION of the utility model? having as title:

FOGLIO TERMOISOLANTE IN STRATI DI ALLUMINIO INTERCALATI DA MATERIALE TERMOCOIBENTE PER THERMAL INSULATION SHEET IN ALUMINUM LAYERS INTERLAYED WITH THERMAL INSULATION MATERIAL FOR

L'OTTENIMENTO DI INVOLUCRI DESTINATI ALLA CONSERVAZIONE IN TEMPERATURA DI CIBI CALDI OBTAINING WRAPS FOR THE PRESERVATION OF HOT FOODS IN TEMPERATURE

Gli involucri usati per cibi caldi sono normalmente costituiti da un semplice sottile foglio di alluminio a volte abbinato ad un foglio di carta o materiale plastico Tale tipo di involucro non consente peraltro di mantenere a lungo in temperatura i cibi, acquistati ad esempio presso rosticcerie, salumerie ed altri fornitori, dato l'insufficiente isolamento termico da esso offerto. Forma pertanto oggetto della presente domanda di brevetto per modello di utilit? un foglio atto all'ottenimento di involucri capaci di offrire un isolamento termico sufficiente a mantenere i cibi caldi in temperatura per qualche ora, caratterizzato dal fatto di essere costituito da due sottili fogli di alluminio con una superficie lucida destinata a venire a contatto con i cibi e l'altra opaca e diffusamente grinzosi fra i quali ? interposto un foglio di materiale termocoibente quale ad esempio poliuretano espanso od altro idoneo materiale di spessore dell'ordine di un millimetro, essendo detto materiale sufficientemente elasticizzato in modo da non screpolarsi e frantumarsi per stropicciamento durante le operazioni di accartocciamento ed essendo i fogli di alluminio incollati a detto materiale uno per la faccia lucida e l'altro, che potr? anche essere privo di grinzosit?, per la faccia opaca, ottenendosi in tal modo un involucro termoisolante nel quale i cibi caldi posti a contatto con la faccia lucida del foglio ed avvolti da uno o pi? strati di questo possono conservare per un tempo pi? o meno lungo una temperatura tale da poter essere consumati senza dover essere sottoposti a riscaldamento. The wrappers used for hot foods are normally made up of a simple thin aluminum sheet sometimes combined with a sheet of paper or plastic material.This type of wrapping does not, however, allow the food to be kept at temperature for a long time, purchased for example at rotisseries, delicatessens and other suppliers, given the insufficient thermal insulation it offers. Therefore, it is the subject of this patent application for a utility model? a sheet suitable for obtaining casings capable of offering sufficient thermal insulation to keep hot food at temperature for a few hours, characterized by the fact that it consists of two thin aluminum sheets with a shiny surface intended to come into contact with food and the other dull and widely wrinkled among which? interposed a sheet of heat-insulating material such as for example expanded polyurethane or other suitable material with a thickness of the order of one millimeter, said material being sufficiently elastic so as not to crack and shatter due to crumpling during crumpling operations and the aluminum sheets being glued to said material one for the shiny face and the other, what can I? also be free of wrinkles, due to the opaque face, thus obtaining a heat-insulating envelope in which the hot foods placed in contact with the glossy face of the sheet and wrapped by one or more? layers of this can keep for a longer time? or less along a temperature that can be consumed without having to undergo heating.

Il trovato potr? essere confezionato in rotoli od in pacchi di fogli di opportune dimensioni od infine realizzato anche sotto forma di vaschette, sacchetti e contenitori in genere. The found may? be packaged in rolls or packs of sheets of suitable dimensions or finally also made in the form of trays, bags and containers in general.

Claims

CLAIMS Rev. 1 - Found characterized by being constituted by two thin sheets of diffusely wrinkled aluminum between which? interposed with a sheet of elasticized heat-insulating material such as for example expanded polyurethane glued for one face to the glossy surface of the first aluminum sheet and for the second face to the opaque surface of the second aluminum sheet; in order to have a casing capable of keeping hot food at temperature for a long time. Rev. 2 - Found as in the preceding claim, characterized in that the aluminum sheets are of minimum thickness and that of heat-insulating material of the order of 1 millimeter. Rev. 3 - Found according to the preceding claims, characterized in that the aluminum sheet having a glossy surface not glued to the sheet of plastic material and intended to be in contact with hot foods can be wrinkle-free. Rev. 4 - Found as in the previous claims characterized by the fact that it? made in ribbons up to 1 meter wide wrapped in rolls or in packed sheets or finally also made in the form of trays, bags and containers in general.