ITMI20120461A1 - METHOD FOR THE PRODUCTION OF A MATTRESS OR SIMILAR OF THE FOAM TYPE, AND MATTRESS OR SIMILAR THUS OBTAINED - Google Patents
METHOD FOR THE PRODUCTION OF A MATTRESS OR SIMILAR OF THE FOAM TYPE, AND MATTRESS OR SIMILAR THUS OBTAINED Download PDFInfo
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- ITMI20120461A1 ITMI20120461A1 IT000461A ITMI20120461A ITMI20120461A1 IT MI20120461 A1 ITMI20120461 A1 IT MI20120461A1 IT 000461 A IT000461 A IT 000461A IT MI20120461 A ITMI20120461 A IT MI20120461A IT MI20120461 A1 ITMI20120461 A1 IT MI20120461A1
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- Italy
- Prior art keywords
- mattress
- foam
- temperature
- sensitive
- thermochromic
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 23
- 239000006260 foam Substances 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 19
- 239000000049 pigment Substances 0.000 claims description 24
- 239000012782 phase change material Substances 0.000 claims description 21
- 230000036760 body temperature Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 229920001821 foam rubber Polymers 0.000 claims description 3
- 229920005830 Polyurethane Foam Polymers 0.000 claims 1
- 239000011496 polyurethane foam Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 11
- 239000012071 phase Substances 0.000 description 11
- 229920000126 latex Polymers 0.000 description 9
- 239000004816 latex Substances 0.000 description 9
- 239000006185 dispersion Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 230000006399 behavior Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000003094 microcapsule Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B68—SADDLERY; UPHOLSTERY
- B68G—METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
- B68G11/00—Finished upholstery not provided for in other classes
- B68G11/04—Finished upholstery not provided for in other classes mainly composed of resilient materials, e.g. of foam rubber
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0004—Use of compounding ingredients, the chemical constitution of which is unknown, broadly defined, or irrelevant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0004—Use of compounding ingredients, the chemical constitution of which is unknown, broadly defined, or irrelevant
- C08J9/0009—Phase change materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/36—After-treatment
- C08J9/365—Coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
- B29C44/582—Moulds for making undercut articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2007/00—Use of natural rubber as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
- B29K2075/02—Polyureas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/002—Coloured
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/751—Mattresses, cushions
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2205/00—Foams characterised by their properties
- C08J2205/06—Flexible foams
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2321/00—Characterised by the use of unspecified rubbers
- C08J2321/02—Latex
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
Description
" METODO PER LA PRODUZIONE DI UN MATERASSO O SIMILE DEL TIPO IN SCHIUMA, E MATERASSO O SIMILE COSÌ OTTENUTO" "METHOD FOR MANUFACTURING A MATTRESS OR SIMILAR OF THE FOAM TYPE, AND MATTRESS OR SIMILAR SO OBTAINED"
DESCRIZIONE DESCRIPTION
Campo di applicazione dell'invenzione Field of application of the invention
La presente invenzione si riferisce al campo dei metodi di produzione di materassi o simili, e più precisamente ad un metodo per la produzione di un materasso o simile del tipo in schiuma, e materasso o simile così ottenuto. The present invention relates to the field of production methods of mattresses or the like, and more precisely to a method for the production of a mattress or the like of the foam type, and mattress or the like thus obtained.
Stato della tecnica State of the art
I materassi in schiuma di tipo noto sono ormai utilizzati da anni per le loro elevate prestazioni soprattutto di portanza, e per le caratteristiche di durevolezza. E' tipico, ad esempio per schiuma di lattice, che il materasso sia costituito da una parte piena in lattice di una determinata densità, in cui sono realizzati alveoli, che possono essere passanti o meno. Il materasso può essere in pezzo unico, oppure composto di moduli distinti, uniti insieme con varie tecniche. Well-known foam mattresses have been used for years for their high performance, especially in terms of bearing capacity, and for their durability characteristics. It is typical, for example for latex foam, that the mattress is made up of a solid part in latex of a certain density, in which alveoli are made, which can be through or not. The mattress can be in a single piece, or composed of distinct modules, joined together with various techniques.
Sono sostanzialmente noti i processi produttivi per la produzione di materassi in lattice, come ad esempio quelli denominati "Dunlop" e "Talalay", oppure anche i metodi di produzione dei materassi in poliuretano. The production processes for the production of latex mattresses are substantially known, such as those called "Dunlop" and "Talalay", or also the production methods of polyurethane mattresses.
Sono noti continui tentativi di introdurre migliorie a tali prodotti nel senso dell'incremento del confort per 1'utente. Continuous attempts are known to introduce improvements to these products in the sense of increasing the comfort for the user.
E' noto introdurre nel materasso materiali del tipo denominato con 1'acronimo "PCM" ovvero "Phase change materials", come ad esempio descritto nel brevetto US2009288259A1 . Detti materiali hanno la prerogativa di modificare la propria fase (da solido a liquido e viceversa) al variare della temperatura esterna a cui sono soggetti. Nella variazione di fase essi assorbono e rilasciano successivamente una considerevole quantità di energia o calore, con diversi comportamenti nelle rispettive fasi di assorbimento e rilascio. In fase di assorbimento di calore, a contatto con una fonte di energia, ad esempio dovuta ad incremento di temperatura, e quindi passando dalla fase solida alla liquida, il PCM tende a non incrementare la propria temperatura per un tempo considerevole perché l'energia in esso introdotta viene assorbita per generare la variazione di fase, mentre la fase di rilascio di energia, ritornando alla fase solida, tende ad essere veloce. It is known to introduce in the mattress materials of the type called by the acronym "PCM" or "Phase change materials", as described for example in the patent US2009288259A1. These materials have the prerogative of modifying their phase (from solid to liquid and vice versa) as the external temperature to which they are subject varies. In the phase variation they absorb and subsequently release a considerable amount of energy or heat, with different behaviors in the respective phases of absorption and release. In the heat absorption phase, in contact with an energy source, for example due to temperature increase, and therefore passing from the solid to the liquid phase, the PCM tends not to increase its temperature for a considerable time because the energy in it introduced is absorbed to generate the phase variation, while the energy release phase, returning to the solid phase, tends to be fast.
In un materasso o similare, l'aggiunta di detto materiale tende ad aumentare il confort per la persona che si sdraia su di esso, in quanto l'energia rilasciata dal corpo non determina un immediato incremento di temperatura del materasso, che invece tende a rimanere fresco per un certo tempo. In a mattress or similar, the addition of said material tends to increase the comfort for the person who lies down on it, since the energy released by the body does not cause an immediate increase in the temperature of the mattress, which instead tends to remain cool for some time.
Tuttavia l'utilizzo di detti materiali non è scevro da inconvenienti, sostanzialmente dovuti al fatto che la persona stenta a percepire i vantaggi derivanti dal comportamento positivo in temperatura del materasso, in quanto non ha evidenza della variazione di fase conseguente alla variazione di temperatura. However, the use of said materials is not free from drawbacks, substantially due to the fact that the person finds it difficult to perceive the advantages deriving from the positive temperature behavior of the mattress, since he has no evidence of the phase variation consequent to the temperature variation.
Inoltre questa difficoltà percettiva introduce ulteriori difficoltà di progettazione del materasso, specialmente in termini di scelta delle quantità e tipologie più appropriate del prodotto PCM da utilizzare. Furthermore, this perceptual difficulty introduces further difficulties in the design of the mattress, especially in terms of choosing the most appropriate quantities and types of the PCM product to be used.
Con la presenza di PCM, il comportamento della variazione termica è diverso da lattice a paraffina, quindi vi è l'esigenza di fornire un sistema per evidenziarne il comportamento termico al fine di fornire un sistema di valutazione in base al quale scegliere un prodotto più adatto alle proprie esigenze. Sia in incremento di temperatura che in rilascio per tornare alla condizione iniziale. Quindi è anche importante la fase di ritorno alla condizione iniziale, nel senso che il riscaldamento deve avvenire con un maggiore ritardo possibile, mentre il rientro alla situazione iniziale deve essere veloce. With the presence of PCM, the behavior of the thermal variation is different from latex to paraffin, so there is a need to provide a system to highlight its thermal behavior in order to provide an evaluation system based on which to choose a more suitable product to your needs. Both in temperature increase and in release to return to the initial condition. Therefore, the phase of returning to the initial condition is also important, in the sense that the heating must take place with as much delay as possible, while the return to the initial situation must be fast.
Sommario dell'invenzione Summary of the invention
Pertanto scopo della presente invenzione è quello di indicare un metodo per la produzione di un materasso o simile del tipo in schiuma, e materasso o simile così ottenuto, atto a risolvere i problemi suddetti. Therefore, the object of the present invention is to indicate a method for the production of a mattress or the like of the foam type, and a mattress or the like thus obtained, suitable for solving the aforementioned problems.
In accordo con un aspetto principale della presente invenzione, viene inserito un materiale in forma di pigmento termosensibile, soggetto a variazione di colore al variare della temperatura e/o della pressione. In accordance with a main aspect of the present invention, a material in the form of a thermosensitive pigment is inserted, subject to color variation as the temperature and / or pressure varies.
E' particolare oggetto della presente invenzione un metodo per la produzione di un materasso o simile in schiuma, caratterizzato dal fatto di comprendere le fasi di: A particular object of the present invention is a method for the production of a foam mattress or the like, characterized in that it comprises the steps of:
- preparare le componenti base della schiuma del materasso o simile; - prepare the basic components of the mattress foam or similar;
- aggiungere una prima quantità di "PCM - Phase change materials", atto a variare la propria fase in funzione della temperatura a cui è soggetto ; - add a first quantity of "PCM - Phase change materials", able to vary its phase according to the temperature to which it is subject;
- aggiungere almeno una seconda quantità di pigmento termocromico o termosensibile (TP), atto a variare il colore in funzione della temperatura a cui è soggetto. - add at least a second quantity of thermochromic or thermo-sensitive (TP) pigment, capable of varying the color according to the temperature to which it is subjected.
E' ulteriore oggetto della presente invenzione un materasso, oppure un guanciale, una poltrona, o un divano con eventuale letto incorporato, o parti di questi, ottenuti con detto metodo. A further object of the present invention is a mattress, or a pillow, an armchair, or a sofa with possible incorporated bed, or parts of these, obtained with said method.
E' particolare oggetto della presente invenzione un metodo per la produzione di materassi o simili del tipo in schiuma, e materasso o simile così ottenuto, come descritto nelle rivendicazioni che formano parte integrante della presente descrizione. A particular object of the present invention is a method for the production of mattresses or the like of the foam type, and mattress or the like thus obtained, as described in the claims which form an integral part of the present description.
Breve descrizione delle figure Brief description of the figures
Ulteriori scopi e vantaggi della presente invenzione risulteranno chiari dalla descrizione particolareggiata che segue di un esempio di realizzazione della stessa (e di sue varianti) e dalle figure annesse dati a puro titolo esplicativo e non limitativo, in cui: Further objects and advantages of the present invention will become clear from the following detailed description of an example of its embodiment (and its variants) and from the attached figures given purely for explanatory and non-limiting purposes, in which:
nelle figure da 1 a 4 sono mostrati diversi andamenti della variazione di colore C nel materasso o simile in schiuma oggetto dell'invenzione, in funzione della variazione di temperatura T. Figures 1 to 4 show different trends of the color variation C in the mattress or similar foam object of the invention, as a function of the temperature variation T.
Gli stessi numeri e le stesse lettere di riferimento nelle figure identificano gli stessi elementi o componenti. The same reference numbers and letters in the figures identify the same elements or components.
Descrizione di dettaglio di esempi di realizzazione Detailed description of examples of realization
Nel processo di produzione di un materasso o simile, oggetto della presente invenzione, ai componenti di base della schiuma, che come noto, possono essere lattice o poliuretano, e determinate quantità di "PCM - Phase change materials", si aggiunge un tipo di materiali componenti denominati con 1'acronimo "TP - pigmenti termocromici o termosensibili". In the production process of a mattress or the like, object of the present invention, a type of material is added to the basic components of the foam, which as known, can be latex or polyurethane, and certain quantities of "PCM - Phase change materials" components named with the acronym "TP - thermochromic or heat sensitive pigments".
I pigmenti termocromici o termosensibili TP sono un tipo di materiale di per sé noto che comprende sostanze termosensibili che hanno la proprietà di cambiare colore (decolorarsi o acquistare colore) in funzione della temperatura in modo reversibile, normalmente racchiuse in microcapsule sferiche insolubili in acqua, in dispersione o polvere. Tipicamente la dimensione delle microcapsule è di 1-30 micron di diametro. TP thermochromic or thermosensitive pigments are a type of material per se known which includes thermosensitive substances which have the property of changing color (discolouring or acquiring color) as a function of temperature in a reversible way, normally enclosed in spherical microcapsules insoluble in water, in dispersion or dust. Typically the size of the microcapsules is 1-30 microns in diameter.
Quando detti pigmenti raggiungono un intervallo di temperature cosiddetto di "viraggio" (T-viraggio), nelle figure l'intervallo T0 - Tl, iniziano a variare la loro colorazione. La T-viraggio è tipica del pigmento: ad esempio sono noti pigmenti con T-viraggio tra -15°C e 65°C. When said pigments reach a so-called "toning" temperature range (T-toning), in the figures the interval T0 - Tl, their coloring begins to vary. T-toning is typical of the pigment: for example, pigments with T-toning between -15 ° C and 65 ° C are known.
Nel caso dell'uso in un materasso o simile è preferibile che la temperatura di viraggio del materiale termocromico o termosensibile sia ad esempio 28 °C, prossima alla temperatura corporea media. In the case of use in a mattress or the like, it is preferable that the color change temperature of the thermochromic or thermo-sensitive material is for example 28 ° C, close to the average body temperature.
I pigmenti termocromici o termosensibili TP possono avere vari tipi di comportamenti delle variazioni cromatiche in funzione della temperatura, ad esempio: TP thermochromic or thermo-sensitive pigments can have various types of behavior of color variations as a function of temperature, for example:
- in un primo tipo (fig. 1) al di sotto della T-viraggio il pigmento è colorato in modo saturo, mentre alla T-viraggio inizia un processo di perdita di colore, per cui al di sopra della T-viraggio diventa incolore; - in a first type (fig. 1) below the T-toning the pigment is colored in a saturated way, while at the T-toning a process of color loss begins, so that above the T-toning it becomes colorless;
- in un secondo tipo (fig. 2) avviene il fenomeno contrario al primo; - in a second type (fig. 2) the opposite phenomenon to the first occurs;
- in un terzo tipo (fig. 3) la variazione di colore dipende anche dal gradiente di temperatura, seguendo percorsi diversi nelle due fasi di incremento e decremento di temperatura. - in a third type (fig. 3) the color variation also depends on the temperature gradient, following different paths in the two phases of temperature increase and decrease.
- in un quarto tipo (fig. 4) il pigmento risulta colorato nell'intervallo di temperature T-viraggio, mentre al di fuori dell'intervallo vi è perdita di colore diventando incolore; Inoltre un ulteriore tipo varia colore anche in funzione della pressione oltre che della temperatura, vale a dire a pressione normale (circa 1 bar) il pigmento risulta incolore, mentre all'aumentare della pressione prende colore, poi nei confronti delle variazioni di temperatura si comporta come il primo tipo. - in a fourth type (fig. 4) the pigment is colored in the temperature range T-toning, while outside the range there is a loss of color becoming colorless; Furthermore, a further type varies color also as a function of pressure as well as temperature, i.e. at normal pressure (about 1 bar) the pigment is colorless, while as pressure increases it takes on color, then it behaves in relation to temperature variations like the first type.
E' possibile ottenere miscele di tipi diversi di pigmenti termocromici o termosensibili TP, di tinte cromatiche diverse, ed è anche possibile miscelarli con pigmenti normali, non termocromici, come ad esempio quelli che già vengono usati per la colorazione tradizionale del materasso o simile, potendo quindi ottenere effetti cromatici di varia natura. Ad esempio è possibile fare apparire a temperatura normale il solo colore del pigmento termocromico o termosensibile TP, oppure il solo colore tradizionale, ed a temperatura aumentata l'altro colore, oppure il contrario. It is possible to obtain mixtures of different types of thermochromic or TP thermo-sensitive pigments, of different chromatic colors, and it is also possible to mix them with normal, non-thermochromic pigments, such as those that are already used for the traditional coloring of the mattress or similar, being able thus obtaining chromatic effects of various kinds. For example, it is possible to make only the color of the thermochromic or thermo-sensitive pigment TP appear at normal temperature, or only the traditional color, and at an increased temperature the other color, or the opposite.
Nel materasso o simile il condizionamento termico è creato dal materiale PCM, che in pratica è un tipo di paraffina ad alta densità, preferibilmente in microcapsule o microsfere, di diametro che può variare ad esempio tra 3 e 15 micron, in polvere o dispersione . In the mattress or the like, the thermal conditioning is created by the PCM material, which in practice is a type of high-density paraffin, preferably in microcapsules or microspheres, with a diameter that can vary, for example, between 3 and 15 microns, in powder or dispersion.
Quindi nel processo di produzione del materasso o simile, ad esempio si prepara una mescola liquida, partendo dal lattice, poi si aggiungono PCM e TP in dispersione o in polvere. Therefore in the production process of the mattress or similar, for example, a liquid mixture is prepared, starting from the latex, then PCM and TP in dispersion or powder are added.
Esistono in commercio tipi diversi di materiali PCM che si distinguono tra gli altri aspetti, anche per la temperatura intorno alla quale si determina la variazione di fase, anche detta "temperatura di viraggio" o "melting point ". There are different types of PCM materials on the market which are distinguished among other aspects, also for the temperature around which the phase variation is determined, also called "color change temperature" or "melting point".
Nel caso dell'uso in un materasso o simile è preferibile che la temperatura di viraggio del materiale PCM sia ad esempio 28 °C, prossima alla temperatura corporea media, ovvero un buon compromesso tra temperatura ambiente e temperatura corporea. In the case of use in a mattress or the like, it is preferable that the color change temperature of the PCM material is for example 28 ° C, close to the average body temperature, that is a good compromise between room temperature and body temperature.
Nel seguito si descrive un esempio di metodo di produzione, utilizzando il lattice, che può essere di tipo noto, sia naturale che sintetico, che prevede una schiumatura meccanica della mescola, seguita da gelificazione con fluosilicato di sodio e vulcanizzazione a vapore a 100° C per circa 30 minuti nello stampo . Si può utilizzare uno stampo chiuso, in cui si inietta il lattice con un processo sostanzialmente di tipo noto, ad esempio "Dunlop" o "Talalay". An example of a production method is described below, using latex, which can be of a known type, both natural and synthetic, which involves mechanical foaming of the mixture, followed by gelling with sodium fluosilicate and steam vulcanization at 100 ° C. for about 30 minutes in the mold. A closed mold can be used, in which the latex is injected with a substantially known process, for example "Dunlop" or "Talalay".
Lo stampo contiene protuberanze interne di forma atta a realizzare le parti vuote (alveoli) del materasso. The mold contains internal protuberances of a shape suitable for making the empty parts (alveoli) of the mattress.
Alla schiuma di lattice si aggiungono i materiali Phase Change Materials (PCM) e Thermochromic Pigments (TP), ottenendo la voluta mescola. Phase Change Materials (PCM) and Thermochromic Pigments (TP) are added to the latex foam, obtaining the desired mix.
Ad esempio , in una mescola con processo Dunlop si effettuano i seguenti passi: For example, in a Dunlop process compound the following steps are carried out:
1.Preparazione dispersione PCM 1.Preparation of PCM dispersion
- 1000 g acqua - 1000 g of water
- 500 g Lurapret® TX PCM 28 - 500 g Lurapret® TX PCM 28
- 10 g resinato potassio - 10 g potassium resin
- 40 g CMC - 40 g CMC
- Agitazione veloce 5 min - Fast stirring 5 min
2.Preparazione dispersione TP: 2.Preparation of TP dispersion:
- 500 g TP - 500 g TP
- 50 g acqua - 50 g of water
- Agitazione veloce 5 min - Fast stirring 5 min
- Nota: i TP possono essere omogenei oppure un mix di TP con diverse caratteristiche; sono disponibili sul mercato ed in questo caso si utilizzano quelli con T-viraggio intorno a 28°C. - Note: TPs can be homogeneous or a mix of TPs with different characteristics; are available on the market and in this case those with T-toning around 28 ° C are used.
3.Le dispersioni di PCM e di TP vengono miscelate e messe sotto agitazione veloce 5 min per omogeneizzare. 3. The PCM and TP dispersions are mixed and put under rapid stirring for 5 min to homogenize.
4.La dispersione ottenuta al punto 3 viene miscelata alla mescola di lattice in quantità tra il 5 e il 15% sulla mescola. 4. The dispersion obtained in point 3 is mixed with the latex blend in a quantity between 5 and 15% of the blend.
Il processo su descritto si può applicare anche solo a parte del materasso, ad esempio suddividendolo a strati nel senso dello spessore, ed applicando il PCM e TP ad uno o due strati laterali. The process described above can also be applied only to part of the mattress, for example by dividing it into layers in the direction of thickness, and applying the PCM and TP to one or two lateral layers.
Si possono abbinare a piacere pigmenti di tipo normale a colore fisso con i TP per ottenere la gradazione che più aggrada. Normal fixed color pigments can be combined with TPs to obtain the shade that suits you best.
Quindi si può ottenere che possa di fatto essere visibile il solo pigmento normale a temperatura elevata, poiché il TP diventa trasparente, mentre a temperatura bassa si nota il solo TP. Therefore it can be obtained that only the normal pigment can actually be visible at a high temperature, since the TP becomes transparent, while at a low temperature only the TP is noticed.
Il metodo di produzione di un materasso in lattice su descritto può trovare applicazione anche nei guanciali e in altre tipologie di manufatti quali ad esempio per la parte di imbottitura di poltrone, divani o divani letto. The method of manufacturing a latex mattress described above can also be applied to pillows and other types of manufactured articles such as for example the padding part of armchairs, sofas or sofa beds.
Sono evidenti i vantaggi derivanti dalla presente invenzione. The advantages deriving from the present invention are evident.
Si ottiene un sistema semplice ed efficace per incrementare le prestazioni del materasso o simile in termini di maggior facilità di percezione dell'effetto termico da parte dell'utente, e di progettazione del materasso o simile. A simple and effective system is obtained to increase the performance of the mattress or the like in terms of greater ease of perception of the thermal effect by the user, and the design of the mattress or the like.
Dalla descrizione sopra riportata il tecnico del ramo è in grado di realizzare l'oggetto dell'invenzione senza introdurre ulteriori dettagli. From the above description the person skilled in the art is able to realize the object of the invention without introducing further details.
In particolare per la produzione sia dei semilavorati che del prodotto finito possono essere utilizzati macchinari e dispositivi di tipo noto. In particular, known machines and devices can be used for the production of both semi-finished and finished products.
Claims (12)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000461A ITMI20120461A1 (en) | 2012-03-23 | 2012-03-23 | METHOD FOR THE PRODUCTION OF A MATTRESS OR SIMILAR OF THE FOAM TYPE, AND MATTRESS OR SIMILAR THUS OBTAINED |
| EP12806674.3A EP2833758A1 (en) | 2012-03-23 | 2012-11-09 | Method for producing a foam mattress or the like, and mattress or the like thus obtained |
| KR1020147029763A KR20150004812A (en) | 2012-03-23 | 2012-11-09 | Method for producing a foam mattress or the like, and mattress or the like thus obtained |
| CN201280073075.1A CN104363794A (en) | 2012-03-23 | 2012-11-09 | Method for producing a foam mattress or the like, and mattress or the like thus obtained |
| JP2015502470A JP2015513949A (en) | 2012-03-23 | 2012-11-09 | Manufacturing method of foam mattress and the like and mattress obtained in this way |
| PCT/IB2012/056301 WO2013140212A1 (en) | 2012-03-23 | 2012-11-09 | Method for producing a foam mattress or the like, and mattress or the like thus obtained |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000461A ITMI20120461A1 (en) | 2012-03-23 | 2012-03-23 | METHOD FOR THE PRODUCTION OF A MATTRESS OR SIMILAR OF THE FOAM TYPE, AND MATTRESS OR SIMILAR THUS OBTAINED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ITMI20120461A1 true ITMI20120461A1 (en) | 2013-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| IT000461A ITMI20120461A1 (en) | 2012-03-23 | 2012-03-23 | METHOD FOR THE PRODUCTION OF A MATTRESS OR SIMILAR OF THE FOAM TYPE, AND MATTRESS OR SIMILAR THUS OBTAINED |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2833758A1 (en) |
| JP (1) | JP2015513949A (en) |
| KR (1) | KR20150004812A (en) |
| CN (1) | CN104363794A (en) |
| IT (1) | ITMI20120461A1 (en) |
| WO (1) | WO2013140212A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104856500A (en) * | 2015-06-11 | 2015-08-26 | 宁波绿凯节能科技有限公司 | Phase-change constant-temperature mattress |
| KR20180064821A (en) | 2016-12-06 | 2018-06-15 | 한화에어로스페이스 주식회사 | Apparatus and method for boundary plane setting |
| KR102155799B1 (en) | 2018-08-21 | 2020-09-14 | 두림야스카와(주) | Teaching tool for painting robot |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050111177A1 (en) * | 2002-06-14 | 2005-05-26 | Kwitek Benjamin J. | Phase change material hand pads for laptop computers and other electronic devices |
| DE202010006164U1 (en) * | 2010-04-27 | 2011-06-01 | RUMMEL Matratzen GmbH & Co. KG, 91413 | Upholstery element with temperature-sensitive surface, in particular mattress, and measuring device with such a cushion element |
| EP2425961A1 (en) * | 2010-09-07 | 2012-03-07 | Latexco NV | Functionalized latex based foam |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5204491B2 (en) * | 2004-12-09 | 2013-06-05 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Phase change material (PCM) composition for temperature control |
| RU2407551C1 (en) * | 2006-10-25 | 2010-12-27 | Дау Глобал Текнолоджиз Инк. | Polyolefine dispersions, foams and cellular materials |
| US7793372B2 (en) | 2008-05-23 | 2010-09-14 | Latex Foam International Holdings, Inc. | Latex foam bedding products including phase change microcapsules |
| CN201567497U (en) * | 2009-08-24 | 2010-09-01 | 蒋宏隆 | Non-woven fabric product with function of temperature regulation |
| CN201759176U (en) * | 2010-08-25 | 2011-03-16 | 江苏金太阳纺织科技有限公司 | Temperature-adjusting type antibacterium anti-mite far infrared air-permeability cleaning pad |
-
2012
- 2012-03-23 IT IT000461A patent/ITMI20120461A1/en unknown
- 2012-11-09 CN CN201280073075.1A patent/CN104363794A/en active Pending
- 2012-11-09 KR KR1020147029763A patent/KR20150004812A/en not_active Application Discontinuation
- 2012-11-09 WO PCT/IB2012/056301 patent/WO2013140212A1/en active Application Filing
- 2012-11-09 JP JP2015502470A patent/JP2015513949A/en active Pending
- 2012-11-09 EP EP12806674.3A patent/EP2833758A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050111177A1 (en) * | 2002-06-14 | 2005-05-26 | Kwitek Benjamin J. | Phase change material hand pads for laptop computers and other electronic devices |
| DE202010006164U1 (en) * | 2010-04-27 | 2011-06-01 | RUMMEL Matratzen GmbH & Co. KG, 91413 | Upholstery element with temperature-sensitive surface, in particular mattress, and measuring device with such a cushion element |
| EP2425961A1 (en) * | 2010-09-07 | 2012-03-07 | Latexco NV | Functionalized latex based foam |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2833758A1 (en) | 2015-02-11 |
| KR20150004812A (en) | 2015-01-13 |
| JP2015513949A (en) | 2015-05-18 |
| CN104363794A (en) | 2015-02-18 |
| WO2013140212A1 (en) | 2013-09-26 |
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