WO2007039517A1 - Processus pour appliquer un circuit de chauffage à un tissu, tissu équipé d'un circuit de chauffage et couverture chauffante comprenant ledit tissu - Google Patents

Processus pour appliquer un circuit de chauffage à un tissu, tissu équipé d'un circuit de chauffage et couverture chauffante comprenant ledit tissu Download PDF

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Publication number
WO2007039517A1
WO2007039517A1 PCT/EP2006/066743 EP2006066743W WO2007039517A1 WO 2007039517 A1 WO2007039517 A1 WO 2007039517A1 EP 2006066743 W EP2006066743 W EP 2006066743W WO 2007039517 A1 WO2007039517 A1 WO 2007039517A1
Authority
WO
WIPO (PCT)
Prior art keywords
fabric
heating
collectors
circuit
applying
Prior art date
Application number
PCT/EP2006/066743
Other languages
English (en)
Inventor
Giacomo Manenti
Davide Manenti
Original Assignee
Suntech S.R.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suntech S.R.L. filed Critical Suntech S.R.L.
Publication of WO2007039517A1 publication Critical patent/WO2007039517A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H05B3/342—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in textiles
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/005—Heaters using a particular layout for the resistive material or resistive elements using multiple resistive elements or resistive zones isolated from each other
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/006—Heaters using a particular layout for the resistive material or resistive elements using interdigitated electrodes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/013—Heaters using resistive films or coatings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017—Manufacturing methods or apparatus for heaters

Definitions

  • the present invention relates to a process to produce a heating circuit on a fabric, the fabric provided with said circuit and a heating blanket comprising said fabric.
  • Heating blankets supplied with an electrical current for example to heat the bed during sleep, are present on the market. They are positioned, for example, on top of the mattress and their purpose is to maintain a suitable temperature, of around 30 0 C, during sleep. These blankets generally have two layers of fabric, suitably stitched inside which is a heating element made of copper wire or another material, suitably insulated, provided with adequate flexibility. This heating element is supplied at the normal network voltage (220 or 110 V, according to the country) and a thermostat and an electronic safety system are provided to prevent all risks of fire and electrocution.
  • This resistive material is a conductive material equipped with adequate resistivity to transform electrical energy into heat. According to a preferred embodiment this is ink with PTC (positive temperature coefficient) characteristics, as defined in the patent application WO 03105530, and marketed, for example, by Coates
  • Electrographics (division of Sun Chemical Inc.)
  • application of the conductive material requires the application of a suitable adhesive to the fabric, to allow bonding of a sheet of conductive material.
  • the production of collectors implies removal of conductive material according to any known technique for the production of printed circuits.
  • the resistive material is a PTC ink and is applied directly to the fabric and the conductive material is applied thereon, exploiting the adhesive properties of the ink.
  • Figure 1 represents the diagram of the collectors produced on a fabric in a process according to the present invention
  • Figure 2 represents the diagram of a heating circuit applied to a fabric in a process according to the present invention
  • Figure 3 schematically represents a heating blanket according to the present invention
  • Figures 4, 5 and 6 represent the diagram of a system for connection of a blanket according to the present invention with an electrical energy source.
  • the process according to an embodiment of the invention includes applying a layer of suitable adhesive to a fabric (this term also includes woven and non- woven fabrics).
  • the adhesive is of an appropriate type to make the fabric bond to the sheet of conductive material.
  • Said conductive material can be metallic, such as copper or aluminium.
  • a material particularly preferred is aluminium, preferably a sheet of aluminium from 0.5 to 500 ⁇ m. Bonding can be hot or cold according to the adhesive used, which can be thermosetting, thermoplastic or the like.
  • the method for deposition of the adhesive which may be of known type (i.e.
  • a sheet of plastic material which is heated with deposition of the sheet of conductive material, can also be positioned.
  • Some examples of adhesives of various types which can be used are: hot melt film marketed by the company VEGAM code HM- PU-25B (polyurethane film); glue produced by Sun Chemical code REMCO- TOP520013 (two-component); Henkel glue (silicone) code 5145/5145. Deposition can advantageously take place on a continuous fabric. According to a suitable system, a reel is foreseen of fabric to which the circuit is applied. The adhesive, and subsequently the conductive material unwound from a second reel, can be applied to the continuously unwound fabric.
  • Fabric and sheet are pressed together by one or more rollers, heated if required.
  • the fabric can be rewound for further processing, or be subjected to other processing phases immediately after the conductive material has been applied.
  • the adhesive if in the form of a sheet of plastic material, can also be unwound continuously from a reel.
  • the collectors are produced.
  • Protective ink of a suitable type which can be chosen from various products available for printed circuit technology, is deposited on the portions of sheet of conductive material applied to the fabric which will form the collectors and subsequently chemical etching, for example using solutions of fluoroboric acid, is performed to remove excess material.
  • the fabric used must obviously be resistant to the reagent used.
  • FIG. 1 shows the pair of collectors applied to the fabric according to a possible embodiment of the invention.
  • the individual collectors 1 and V are present, provided with respective fingers 3, 3' and ends 6 and 6' for connection to an external power supply.
  • Forming of the collectors is followed by application of the resistive material, in order to connect the collectors suitably.
  • the resistive material is a conductive ink, in particular with PTC characteristics (such as PTC 100), it can be applied with known techniques, such as relief and intaglio printing, also directly on the rotary production line described above.
  • the resistive material connects the two connectors and forms the element which produces heat if a current runs through it.
  • Figure 2 shows an example of the possible arrangement of the resistive material; a series of traces 2 (in grey) are shown deposited on the fingers of the collectors. It is clear that each portion of this trace which connects the finger of one collector with the finger of an opposed connector will form a heating resistor.
  • the diagram of the figures can be varied, both as regards the geometry of the collectors and as regards the arrangement of the resistive material which, for example, instead of being arranged in traces can involve the entire surface of the circuit.
  • the PTC ink imparts self-regulating properties of the temperature.
  • resistive material can be followed by application, for example by hot rolling, of an insulating film.
  • an operation can also be performed to perforate the layer of adhesive in the areas not involved by the other conductive and resistive materials, to offer the fabric qualities of breathability.
  • the diagram in Figure 2 represents a complete circuit, which as mentioned, can be produced with an automated process starting from a reel of fabric, which is cut into a plurality of portions each containing a complete circuit (or several circuits if desired).
  • the conductive material can be applied to the fabric in a different way, such as by sputtering or in the form of conductive ink, by means of screen printing deposition, directly on the fabric or subsequent to application of an adhesive or primer.
  • the collectors can be formed with the deposition process of the conductive material, without the need for subsequent chemical etching, which can be an advantage if specific fabrics are use.
  • the resistive material in the form of an ink, preferably with PTC characteristics, can be applied to the fabric before the conductive material.
  • the resistive material can also act as adhesive, and must be applied to the entire surface involved by the circuit, or at least to the surface involved by the collectors and the connection surface between the collectors able to form the heating resistors.
  • a portion of fabric to which a circuit as described above has been applied can be stitched to a similar portion not bearing a circuit, so that the circuit remains inside.
  • the structures of the circuit which can be obtained according to the present invention, like the one in Figure 2, allow the use of a low voltage current, preferably from 2.4 to 50 V, for example from 12 to 50 V, also direct if desired, unlike prior art structures in which a single wire acts as heating element.
  • Devices for connection to power supply systems will be suitably provided. As can be seen in Figure 2, the collectors have ends 6, 6' to which devices are connected for the connection to electrical supply systems of the circuit.
  • connection devices (with a transformer or with batteries) can be provided which include a female connector with pins connected to said ends 6 and 6' of the circuit and included in a specific structure 8 which is integral with the blanket 7, accessible from the outside of the blanket, destined to house a male connector, connected to the electric power source 10.
  • FIG. 4 and 5 show side views of a pin device as described above, with the structure.
  • Figure 6 schematically shows an automatic button 14 connection device, with connection elements 12 and 13 connected respectively to a collector of the heating circuit and to a power cable 15 (only one of the two pairs of connection elements is shown).
  • Other devices can easily be devised by those skilled in the art, also in consideration of the voltage used (the system in Figure 3 is suitable in the case of safe voltage (i.e. 12 or 24 V, so that contact with the pins of the male connector does not create dangers of any kind).
  • a connection device that allows disconnection of the heating blanket from the cables coming from the electrical power supply is preferred to allow the heating blanket to be washed or put away separately.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Surface Heating Bodies (AREA)

Abstract

La présente invention concerne un procédé pour appliquer un circuit à un tissu comprenant : - l'application d'un matériau conducteur à un tissu, produisant au moins une paire de collecteurs électriques (1, 1'), - l'application d'un matériau résistif (2) de manière à connecter ladite paire de collecteurs. L'invention concerne aussi ledit circuit et une couverture chauffante comprenant ledit tissu.
PCT/EP2006/066743 2005-09-26 2006-09-26 Processus pour appliquer un circuit de chauffage à un tissu, tissu équipé d'un circuit de chauffage et couverture chauffante comprenant ledit tissu WO2007039517A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20051781 ITMI20051781A1 (it) 2005-09-26 2005-09-26 Processo per l'applicazione di uj circuito riscaldante ad un tessuto tessuto dotato di circuito riscaldante e termocoperta comprendente tale tessuto
ITMI2005A001781 2005-09-26

Publications (1)

Publication Number Publication Date
WO2007039517A1 true WO2007039517A1 (fr) 2007-04-12

Family

ID=37651160

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/066743 WO2007039517A1 (fr) 2005-09-26 2006-09-26 Processus pour appliquer un circuit de chauffage à un tissu, tissu équipé d'un circuit de chauffage et couverture chauffante comprenant ledit tissu

Country Status (2)

Country Link
IT (1) ITMI20051781A1 (fr)
WO (1) WO2007039517A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008035057A1 (de) * 2008-07-26 2010-01-28 Volkswagen Ag Textiles Flächenheizelement
US8198979B2 (en) 2007-04-20 2012-06-12 Ink-Logix, Llc In-molded resistive and shielding elements
US8514545B2 (en) 2007-04-20 2013-08-20 Ink-Logix, Llc In-molded capacitive switch
FR3094075A1 (fr) * 2019-03-18 2020-09-25 Valeo Systemes Thermiques Panneau radiant
US20220117043A1 (en) * 2018-11-19 2022-04-14 E & E Co., Ltd. Heating blanket having an embedded control switch and an external control module

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2010650A (en) * 1977-11-23 1979-06-27 Bulten Kanthal Ab Flexible electric heating device
EP0647083A1 (fr) * 1993-09-07 1995-04-05 Tapeswitch Corporation Of America Procédé pour fabriquer des articles conducteurs à température moyenne
WO2000043225A2 (fr) * 1999-01-25 2000-07-27 CHIOVATERO, Antoinette Chauffage souple autoregulateur
US20030047548A1 (en) * 2001-09-11 2003-03-13 Horey Leonard I. Heating blankets with low-current multiple heating elements
WO2005018281A1 (fr) * 2003-08-14 2005-02-24 Imetec S.P.A. Couverture chauffante
EP1544869A1 (fr) * 2002-06-19 2005-06-22 Matsushita Electric Industrial Co., Ltd. Element chauffant a thermistance a coefficient de temperature positif (ptc) souple et procede de fabrication d'element chauffant

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2010650A (en) * 1977-11-23 1979-06-27 Bulten Kanthal Ab Flexible electric heating device
EP0647083A1 (fr) * 1993-09-07 1995-04-05 Tapeswitch Corporation Of America Procédé pour fabriquer des articles conducteurs à température moyenne
WO2000043225A2 (fr) * 1999-01-25 2000-07-27 CHIOVATERO, Antoinette Chauffage souple autoregulateur
US20030047548A1 (en) * 2001-09-11 2003-03-13 Horey Leonard I. Heating blankets with low-current multiple heating elements
EP1544869A1 (fr) * 2002-06-19 2005-06-22 Matsushita Electric Industrial Co., Ltd. Element chauffant a thermistance a coefficient de temperature positif (ptc) souple et procede de fabrication d'element chauffant
WO2005018281A1 (fr) * 2003-08-14 2005-02-24 Imetec S.P.A. Couverture chauffante

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8198979B2 (en) 2007-04-20 2012-06-12 Ink-Logix, Llc In-molded resistive and shielding elements
US8514545B2 (en) 2007-04-20 2013-08-20 Ink-Logix, Llc In-molded capacitive switch
US9576755B2 (en) 2007-04-20 2017-02-21 T+Ink, Inc. In-molded resistive and shielding elements
DE102008035057A1 (de) * 2008-07-26 2010-01-28 Volkswagen Ag Textiles Flächenheizelement
DE102008035057B4 (de) 2008-07-26 2023-01-26 Volkswagen Ag Textiles Flächenheizelement
US20220117043A1 (en) * 2018-11-19 2022-04-14 E & E Co., Ltd. Heating blanket having an embedded control switch and an external control module
FR3094075A1 (fr) * 2019-03-18 2020-09-25 Valeo Systemes Thermiques Panneau radiant

Also Published As

Publication number Publication date
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