GB2431136A - Flexible heat retardant sheets - Google Patents

Flexible heat retardant sheets Download PDF

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Publication number
GB2431136A
GB2431136A GB0514193A GB0514193A GB2431136A GB 2431136 A GB2431136 A GB 2431136A GB 0514193 A GB0514193 A GB 0514193A GB 0514193 A GB0514193 A GB 0514193A GB 2431136 A GB2431136 A GB 2431136A
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GB
United Kingdom
Prior art keywords
sheet
heat
appliance
layer
hot
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
GB0514193A
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GB0514193D0 (en
Inventor
Barry John Keane
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GIFTPOINT Ltd
Original Assignee
GIFTPOINT Ltd
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 GIFTPOINT Ltd filed Critical GIFTPOINT Ltd
Priority to GB0514193A priority Critical patent/GB2431136A/en
Publication of GB0514193D0 publication Critical patent/GB0514193D0/en
Publication of GB2431136A publication Critical patent/GB2431136A/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D1/00—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D6/00—Details of, or accessories for, hair-curling or hair-waving devices
    • A45D6/18—Protecting devices or packages for hair curlers or the like while in use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/027—Thermal properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/08—Interconnection of layers by mechanical means
    • B32B7/09—Interconnection of layers by mechanical means by stitching, needling or sewing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3888—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation wrappers or flexible containers, e.g. pouches, bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3888—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation wrappers or flexible containers, e.g. pouches, bags
    • B65D81/3897—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation wrappers or flexible containers, e.g. pouches, bags formed of different materials, e.g. laminated or foam filling between walls
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
    • A45C11/20—Lunch or picnic boxes or the like
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C3/00—Flexible luggage; Handbags
    • A45C3/001—Flexible materials therefor
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D1/00—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
    • A45D2001/002—Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • B32B2255/205—Metallic coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0221—Vinyl resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

A flexible heat retardant sheet 10 comprises a flexible heat-resistant layer 12, and, below it, a flexible heat-insulating layer 14, possibly with another flexible heat-resistant layer on the opposite side of the insulating layer so as to sandwich the layer, the layers being sewn together such as to form a bag 16. The heat resistant layer may be a woven material formed from a heat resistant polymer such as polyamide e.g. nylon or polyaramid, or polyester with a coating of polyurethane. The heat resistant layer may comprise a heat conductive coating containing metal such as aluminium or bronze in the form of powder The heat retardant sheet may comprise a metal layer in the form of a foil. The insulating layer may be a foam such as ethylene vinyl acetate copolymer foam containing carbon black to help spread heat laterally, siloxane, silicone rubber, elastomer, styrene butadiene rubber or blended rubber, possibly with a resistance- reducing coating such as silicone wax or PTFE. The sheet may be used as a wrapper or pouch for a hot heated hair appliance 32. The sheet may be embodied in the walls of a handbag compartment. The hair appliance may be rested upon or wrapped in the sheet while being heated.

Description

2431'36 TITLE: Heat-retardant material
FIELD OF THE INVENTION
This invention relates to heat-retardant materials that are flexible, for example sufficiently to wrap around a hot object and to be opened out to allow a hot object to be placed safely upon them.
BACKGROUND TO THE INVENTION
Some hot hair appliances, e.g. curling tongs, have exposed hot parts that may reach 200 degrees Centigrade in use. After use, the user may wish to put them down on a surface andor transport them, e.g. in a hancbag. Due to their temperature, they can then cause damage. To protect such a surface, it may be covered with a so-called heat-proof mat To transport the appliance, it must first be allowed to cool (which may take an inconveniently long time), or it must be placed in a heat-proof container. To combine both of these purposes, there is known to the present inventor a flexible so-called heat-proof material that can be used as such a mat and can then be used to wrap the hot appliance for transport. This suffers from the disadvantage that it has to be made of felted material, and it therefore deteriorates, falling apart rapidly with repeated use, and is rather too stiff to be used easily for the wrapping.
THE INVENTION
The present inventor could not find a material suitable for such a use. He then looked to the technology of flexible heat-resistant materials and found materials well able to withstand the temperatures concerned but wholly unable to prevent a dangerous throughput of heat. He found woven materials were much better in this respect. He knew that there were insulating materials that were suitably flexible, but they could not stand the high temperatures concerned. He then had the brilliant idea of combining such an insulating material with such a flexible heat-resistant material, preferably a woven one. He realised that the (preferably woven) heat-resistant material could reduce the temperature of the heat energy passing through it to a temperature that the insulating material could withstand. He further realised that the insulating material could be a more efficient insulator (e.g. per mm thickness) if in the form of a foam. A foam could also be much more durably flexible than a solid material of the same composition, i.e. have a greatly extended life under repeated flexing. He further realised that the temperature disadvantage could be much ameliorated by including a heat-conducting layer to even out the temperature gradients laterally. A safer and more versatile product is obtained if the sheet comprises another flexible heat-resistant layer on the opposite side (face) of the insulating layer.
According to one aspect of invention, there is provided a flexible heatretardant sheet comprising a flexible heat-resistant layer and, below it, a flexible heat-insulating layer. The sheet is suitable for use as a heatretardant wrapper for a hot heated hair appliance, e.g. flexible enough to be wrapped around it or again ready-formed as a pouch flexible enough for the appliance to be placed therein. Thus, according to another aspect of the invention, there is provided a flexible heat-retardant sheet comprising a flexible heat-resistant layer and, below it, a flexible heatinsulating layer, the sheet being suitable for use as a heat-retardant wrapper for a hot heated hair appliance.
Preferred embodiments include one or more of the following features: said sheet comprises another flexible heat-resistant layer on the opposite side (i.e. face) of the insulating layer.
- the two said heat-resistant layers are in the form of sheets, one on either side (i.e. face) of said insulating layer (to enclose or sandwich the latter between them).
- the two said sheets are sewn together.
- the two said heat-resistant layers are sewn together to form a bag to contain said insulating layer.
- a said heat-resistant layer comprises woven material. By uwoven is meant herein only 1with warp and weft, as opposed to, for example, uwovenu to describe a process, used in felting, of needle-punching adjacent layers to bond them together.
- a said heat-resistant layer comprises a heat-retardant polymer.
- a said heat-resistant layer comprises polyamide.
- a said heat-resistant layer comprises polyester.
- a said heat-resistant layer comprises polyaramid.
- at least one said heat-resistant layer comprises woven nylon fibre.
- a said heat-resistant layer comprises a coating of polyurethane.
- a said heat-resistant layer comprises means to allow or help heat to spread laterally. In practice, this will usually allow the heat to spread, usually to a more nearly substantially uniform temperature, throughout the area of said heat-resistant layer, so that the hottest heat energy can drop substantially in temperature by the time it has penetrated through this layer.
- .a said heat-resistant layer comprises a heat-conductive coating.
- said coating comprises metal.
- said metal comprises silver-coloured metal, e.g. aluminium, e.g. powder.
- said metal comprises gold-coloured metal, e.g. bronze, e.g. powder.
- said coating comprises carbon black.
- said heat-retardant sheet comprises a metal layer.
- the metal layer has the form of a sheet - the metal layer has the form of a sheet of foil.
- said insulating layer is in the form of a sheet - said insulating layer has a thickness of not more than 10 mm.
- said insulating layer has a thickness in the range of from 3 mm to 10 mm.
- said insulating layer has a thickness of substantially 3 mm.
- said insulating layer comprises foam.
- said foam is able to withstand a high temperature, e.g. at least 150 degrees Centigrade, more preferably at least 180 degrees Centigrade, possibly at least 210 degrees Centigrade, or even at least 250 degrees Centigrade.
- said foam comprises a thermally insulating copolymer.
- said foam comprises ethylene vinyl acetate copolymer (EVA) said foam comprises carbon black, possibly a mixture of different grades of carbon black, e.g. to allow or help heat to spread laterally as mentioned above.
- said insulating layer comprises a non-foam mateiial.
- said insulating layer compnses a material comprising any one or more of the following properties and/or materials: any suitable siloxane; silicone rubber; an elastomer; styrene butadiene rubber (SBR); a blended rubber; a monomer elastic rubber; an ability to withstand a temperature of (i.e. of at least) 200, 210, 220, 250 or 300 degrees Centigrade, or even a temperature above 300 degrees Centigrade.
Some of the insulating layer subsances mentioned herein can be chosen sufficiently heat-resistant as well as heat-insulating not to require the heat-resistant outer layer/s of woven material. However, they tend to have high friction, like rubber, and therefore to be more difficult to handie (e.g. to insert in and to extract from a travel bag), whereas the woven materials tend to have a much lower friction co-efficient and can therefore, for example, slide much more easily into and out of a travel bag. There is a possibility suitably to coat such an insulating layer material, not having outer layers, with a resistance-reducing coating, e. g. a silicone wax and/or PTFE, e.g. that known under the trade name Teflon.
Alternatively to some of the embodiments indicated above, said heatretardant sheet may be monolithic, with properties and possibly chemical composition varying from one side of the sheet to the opposite side of the sheet, with a heat-resistant layer and, below that, an insulating layer.
The flexibility is preferably such that the heat-retardant sheet can be used to wrap around a hot article arid can be opened out sufficiently to use as a mat upon which to place a hot article. In either case, this is done with a view to retarding or preventing the heat from passing through the mat in such a manner, e.g. so quickly, or to such an extent, or at such high temperature, that it could cause damage. Thus, this embodiment provides a heat-proof (i.e. heat-retardant) material that can be used as a wrapper for a heated hair appliance so that it can be transported safely, e.g. in a handoag, and that can be opened out to be used as a mat upon which to place a hot heated hair appliance safely until it becomes cool.
Some embodiments provide a heat-proof mat that is used as protection in relation to, and/or to transport, a heated hair appliance, such as for example hair straighteners or culling tongs, when hot. The mat when open allows the user to place their hot hair appliance onto it, and thus protects the surface below. The mat is so flexible that it can also be used to wrap the hot hair appliance and allow easy transportation thereof.
Said flexible heat-resistant layer may be in the form of a sheet that is folded in half and sewn together along the two opposite sides adjacent the fold, to make a flat bag, in which is located said heat-insulating layer, and also sewn together along the side opposite the fold.
In some preferred embodiments, there is used 70 denier nylon fibre (of a grade known in the trade as 190T) coated in either silver-coloured (metallised) meta polyurethane (PU) or gold-coloured (metallised) polyurethane, woven into a fabric. This woven fabric is then, for example, folded in half and sewn together along the two opposite sides adjacent the fold, to make a flat bag into which is placed a 3mm thick piece of ethylene vinyl acetate copolymer (EVA) foam and then finished by sewing along the final side to make a mat having the form of sandwich of a layer of the foam between two layers of the woven fabnc. (Instead of folding, two separate pieces of the woven fabric may be stitched together along three adjacent sides to make the flat bag.) The resulting sandwich sheet (or indeed any other form of the heat-retardant sheet) may itself be folded in half and sewn together along the two apposite sides adjacent such fold, to make a pouch into which may be placed the hot heated hair appliance. When in the form of a pouch, the material need not be as flexible as when it is required to be wrapped around a hot article.
As variations, there can be used different thicknesses of EVA foam up to approximately 10mm. Other grades of nylon can be used, possibly coated, and/or the PU may contain, instead of bronze or aluminium powder, carbon black. The nylon can be replaced with other engineering polymer/s with good resistance to heat, e.g. a polyester or polyaramid.
There has been developed a product that can be used as a mat to rest hot hair appliances on and that can also be used to wrap and then transport said hair appliances while initially hot and as they cool down. The product is able to withstand temperatures of approximately 225 degrees Centigrade for several minutes at a time and under repeated use over a prolonged period of time (2 to 3 hours) and also to reduce heat transfer through the product. Thus, the product can be used to support the hair appliances resting on a non-heat-resistant surface and to wrap up the hair appliances as they cool down and allow easy (safe) transport. To allow the hair appliances to be wrapped up the product is suitably flexible.
Some benefits of these embodiments: They can: - be produced at low cost; be visually and aesthetically pleasing; remain intact over prolonged use (in contrast to a felted material, which becomes frayed and messy over prolonged use); be versatile, e.g. so that they can be printed or embroidered and can be incorporated into other products, such as a hancbag (known in the USA as a purse) (e.g. as a detachable mat, or again embodied in the walls of least one compartment of the hancbag), as well as being used on their own; lend themselves to being made available in a range of colours (e.g. greens, blues, purples and/or pinks, or even a tartan).
Other aspects of the invention provide: Any such heat-retardant sheet suitable for a heated hair appliance when hot to be rested upon it and suitable to serve as a wrapping for such appliance for transport thereof.
A method of using any such heat-retardant sheet, in which a heated hair appliance is rested upon the sheet and/or is wrapped in the sheet, when hot and/or while becoming hot and/or it then becomes hot, e.g. being plugged into the mains electricity supply, (i.e. it is rested upon the sheet and then becomes hot.) Wrapped in the sheet' includes a case in which the sheet is wrapped around the hot appliance, and includes a case in which the sheet is in the form of a pouch and the hot appliance is placed therein.
A method of using a heated hair appliance in which the appliance is placed on any such heat-retardant sheet while it is being heated or while it is hot.
A method of preparing a heated hair appliance for transport, in which the appliance before and/or when being heated and/or when hot is wrapped in any such heat-retardant sheet.
A method of transporting a heated hair appliance, in which the appliance while hot is maintained during transport wrapped in any such heatretardant sheet during transport
DESCRIPTION OF PARTICULAR EMBODIMENTS WITH REFERENCE TO THE DRAWINGS
Figure 1 is a schematic partial cross-section through a sheet embodying the invention; Figure 2 is an exploded view of the sheet being made; Figure 3 is a perspective view of the sheet opened out to serve as a mat; Figure 4 is a perspective view of the sheet rolled up as it is when wrapped around a hot heated hair appliance (shown in dashed lines); and Figure 5 is a perspective view of the sheet formed as a canying pouch.
Referring to the drawings, a flexible heat-retardant sheet 10 comprises a flexible heat-resistant layer 12 and, below it, a flexible heatinsulating layer 14. Said sheet 10 comprises another flexible heatresistant layer 12 on the opposite side (face) of the insulating layer 14.
The two said heat-resistant layers 12, 12 are in the form of sheets 12, 12 of woven material 12 (which may be made of any one or more of the materials mentioned above, e.g. a heat-retardant polymer) which are sewn together, one on either side of said insulating layer 14 (to enclose or sandwich the latter between them).
The two said heat-resistant layers 12, 12 are sewn together to form a flat bag 16 to contain said insulating layer 14 which has a thickness of substantially 3 mm and comprises a foam of thermally insulating ethylene vinyl acetate copolymer (EVA), or preferably styrene butadiene rubber (S BR) Two separate pieces 12, 12 of the woven fabric are stitched together along three adjacent sides 20, 22, 24 by respective lines of stitching 21, 23, 25 to make the flat bag 16 into which is placed the 3mm thick piece of ethylene vinyl acetate copolymer (EVA) foam 14. Altemavely,as shown by dashed lines in Figure 2, the woven fabric 12 is folded in half and sewn together along the two opposite sides 22, 24 adjacent the fold 26, to make the flat bag 16. In either case, after insertion of foam 14, the material 10 is finished by sewing along the final side 28 with a line of stitching 29 to make a mat 10 having the form of sandwich of a layer 14 of the foam between two layers 12, 12 of the woven fabric. The resulting sandwich sheet 10 may, as shown in Figure 5, itself be folded in half and sewn together along the two opposite sides 22, 24 adjacent this fold 30, to make a pouch 10 into which may be placed the hot heated hair appliance 32.
In a method embodying the invention of using any such heat-retardant sheet 10, a heated hair appliance 32 is rested upon the sheet 10 and/or is wrapped in the sheet 10, when hot and/or while becoming hot and/or it then becomes hot, e.g. being plugged into the mains electricity supply.
In a method embodying the invention of using a heated hair appliance 32, the appliance 32 is placed on any such heat-retardant sheet 10 while it is being heated or while it is hot.
In another method embodying invention of preparing a heated hair appliance 32 for transport, the appliance 32 before and/or when being heated and/or when hot is wrapped in any such heat-retardant sheet 10.
In another method embodying the invention of transporting a heated hair appliance 32, the appliance 32 while hot is maintained wrapped in any such heat-retardant sheet 10 during transport.
It will be apparent to one skilled in the art, that features of the different embodiments disclosed herein may be omitted, selected, combined or exchanged and the invention is considered to extend to any new and inventive combination thus formed. Where a preference or particulansation is stated, there is implied the possibility of its negative, i.e. a case in which that preference or particularisation is absent Many variations of the invention and embodiments hereinbefore described will be apparent to people skilled in the art and all such variations are to be considered as falling within the scope of the invention.

Claims (1)

1 A flexible heat-retardant sheet comprising a flexible heat-resistant layer and, below it, a flexible heat-insulating layer.
2. A flexible heat-retardant sheet comprising a flexible heat-resistant layer and, below it, a flexible heat-insulating layer, the sheet being suitable for use as a heat-retardant wrapper for a hot heated hair appliance.
3. A sheet as claimed in claim 1 or 2, which comprises another flexible heat-resistant layer on the opposite face of the insulating layer.
4. A sheet as claimed in claim 3, in which the two said heat-resistant layers are in the form of sheets, one on either face of said insulating layer.
5. A sheet as claimed in claim 4, in which said sheets are sewn together.
6. A sheet as claimed in claim 3, 4 or 5, in which the two said heatresistant layers are sewn together to form a bag to contain said insulating layer.
7. A sheet as claimed in any one of claims 1 to 6, in which a said heatresistant layer comprises woven material.
8. A sheet as claimed in any one of claims 1 to 7, in which a said heatresistant layer comprises a heat-retardant polymer.
9. A sheet as claimed in any one of claims 1 to 8, in which a said heatresistant layer comprises polyamide.
10. A sheet as claimed in any one of claims I to 9, in which a said heatresistant layer comprises polyester.
11. A sheet as claimed in any one of claims 1 to 10, in which a said heatresistant layer comprises polyaramid 12. A sheet as claimed in any one of claims 1 to 11, in which at least one said heat-resistant layer comprises woven nylon fibre.
13. A sheet as claimed in any one of claims 1 to 12, in which a said heatresistant layer comprises a coating of polyurethane.
14. A sheet as claimed in any one of claims 1 to 13, in which a said heatresistant layer comprises means to allow or help heat to spread laterally.
15. A sheet as claimed in any one of claims 1 to 14, in which a said heatresistant layer comprises a heat-conductive coating.
16 A sheet as claimed in claim 15, in which said coating comprises metal.
17. A sheet as claimed in claim 16, in which said metal comprises silvercoloured metal.
18. A sheet as claimed in claim 16 or 17, in which said metal comprises gold-coloured metal.
19. A sheet as claimed in any one of claims 15 to 18, in which said coating comprises carbon black.
20. A sheet as claimed in any one of claims 1 to 19, in which said insulating layer is in the form of a sheet.
21. A sheet as claimed in any one of claims 1 to 20, in which said insulating layer has a thickness of not more than 10 mm.
22. A sheet as claimed in claim 21, in which said insulating layer has a thickness of substantially 3 mm.
23. A sheet as claimed in any one of claims 1 to 22, in which said insulating layer compnses foam.
24. A sheet as claimed in claim 23, in which said foam is able to withstand a high temperature.
25. A sheet as claimed in claim 23 or 24, in which said foam comprises a thermally insulating copolymer.
26. A sheet as claimed in any one of claims 23 to 25, in which said foam comprises ethylene vinyl acetate copolymer (EVA) 27. A sheet as claimed in any one of claims 23 to 26, in which said foam comprises carbon black.
28. A sheet as claimed in any one of claims 1 to 22, in which said insulating layer comprises a non-foam material.
29. A sheet as claimed in any one of claims 1 to 28, in which said insulating layer comprises a material comprising any one or more of the following materials: a siloxane; silicone rubber; an elastomer styrene butadiene rubber (SBR); a blended rubber; a monomer elastic rubber.
30. A sheet as claimed in any one of claims 1 to 29, in which said insulating layer comprises a material comprising an ability to withstand a temperature of 200 degrees Centigrade.
31. A sheet as claimed in any one of claims 1 to 30, in which said flexible heat-resistant layer is in the form of a sheet and is folded in half and sewn together along the two opposite sides adjacent the fold, to make a flat bag, in which is located said heat-insulating layer, and also sewn together along the side opposite the fold.
32. A sheet as claimed in any one of claims 1 to 32, folded in half and sewn together along the two opposite sides adjacent this fold, to make a pouch into which may be placed a hot heated hair appliance.
33. A flexible heat-retardant sheet substantially accorcng to any embodiment hereinbefore described.
34. A flexible heat-retardant sheet substantially according to any embodiment hereinbefore described with reference to the accompanying drawings.
35. A method of using a heat-retardant sheet as claimed in any one of claims I to 34, in which a heated hair appliance is rested upon the sheet and/or is wrapped in the sheet, when hot and/or while becoming hot and/or it then becomes hot.
36. A method as claimed in claim 35, in which the sheet is wrapped around the hot appliance.
37. A method as claimed in claim 35, in which the sheet is in the form of a pouch and the hot appliance is placed therein.
38. A method of using a heated hair appliance in which the appliance is placed on a heat-retardant sheet as claimed in any one of claims 1 to 34 while it is being heated or while it is hot.
39. A method of preparing a heated hair appliance for transport, in which the appliance before and/or when being heated and/or when hot is wrapped in a heat-retardant sheet. as claimed in any one of claims I to 34.
40. A method of transporting a heated hair appliance, in which the appliance while hot is maintained during transport wrapped in a heatretardant sheet as claimed in any one of claims 1 to 34.
41. A method of using a heat-retardant sheet, or using a heated hair appliance, or preparing a heated hair appliance for transport, or transporting a heated hair appliance, substantially according to any example hereinbefore described.
42. A method of using a heat-retardant sheet, or using a heated hair appliance, or prepanng a heated hair appliance for transport, or transporting a heated hair appliance, substantially according to any example hereinbef ore described wth reference to the accompanying chawings.
I
Amendments to the claims have been filed as follows: (0
AMENDED CLAIMS
I A lextie heat-retardant sheet cornpnsing a lexible heat-resistant layer and, below it, a lexEle heat-insulahng tayer 2 A ftextie heat-retardant sheet comprising a lextie heat-resistant layer and, below i a lextie heat-insulafing layer, the sheet being suitable tbr use as a heat-retardant wrapper for a hot heated hair ap4iance 3 A sheet as claimed in claim 1 or 2, which comprises another $extde heat- resistant layer on the opposite lace of the insulabng layer 4 A sheet as darned in claim 3, in which the two said heat-resistant layers are in the form of sheets, one on either face of said insdaffng layer 5. A sheet as claimed in claim 4, in which said sheets are sewn together 6. A sheet as claimed in any one of claims 3 to 5, in which the two said heat-resistant layers are sewn together to b-rn a bag to contain said insulabng layer 7 A sheet as claimed in any one of claims 1 to 6, in which a said heat- resistant layer comprises woven materiel.
8 A sheet as claimed in any one of darns 1107, in which a said heatresistant layer comprises a heat-retardant polymer.
9 A sheet as claimed in any one of dairns ito 8, in which a said heatresistant layer comprises polyamide 10. A sheet as claimed in any one of claims Ito 9, in which a said heat- resistant layer comprises polyester 11 A sheet as claimed in any one of claims ito 10. in which a said heatresistant layer comprises pdyaramicj 12. A sheet as claimed in any one of claims I to 11, in which at least one said heat-resistant layer comprises woven nylon Wire 13. A sheet as claimed in any one of claims I to 12, in which a said heat- resistant layer comprises a coahng of polyurethane.
14 A sheet as claimed in any one of claims 1 to 13, in which a said heatresistant layer comprises means to ow or help heat to spread latery 15 A sheet as claimed in any one of claims I to 14, in which a said heatresistant layer compnses a heat-conductjw coabng.
16 A sheet as claimed in claim 15, in which said coafing comprises mets.
17. A sheet as claimed in claim 16, in which said mets comprises avercoloured metai 18 A sheet as claimed in claim 16 or 17, in which said mets comprises gold-ccloured mets n jq A qhep.t as claimed in any one of claims Th fri IR, in which caicl cnahn0 mmpri.qeq rarhon Hark A sheet as darned in any one of claims Ito 19, in which said insulating layer is in the form of a sheet 21 A sheet as claimed in any one of claims ito 20, in which said insulating layer has a thickness of not more than mm.
22 A sheet as claimed in claim 21, in which said insulating layer has a thickness of substanty 3 mm 23 A sheet as claimed in any one of claims ito 22, in which sad insulating layer comprises foam 24 A sheet as claimed in claim 23, in which said foam is able to withstand a high temperature 25. A sheet as claimed in claim 23 or 24, in which said foam comprises a thermly insulating copoiymer ti 26 A sheet as claimed in any one of claims 23 to 25, in which said foam comprises eth4ene vind acetate copdymer (EVA) 27 A sheet as claimed in any one of claims 23 to 26, in which said foam comprises carbon black.
28 A sheet as claimed in any one of dams 1 to 22, in which said instialing layer comprises a non-foam materiai.
29 A sheet as claimed in any one of claims 1 to 28, in which said instlahng layer comprises a materiai comprising any one or more of the fdiowng materisis a stoxane, slicone rubber; an siastomer; styrene butadiene rubber (SBR), a blended rubber; a monomer siastic rubber A sheet as claimed in any one of claims Ito 29, in which said insilating layer comprises a materisi comprising an ablity to withstand a temperature of 200 deees Centiade.
31. A sheet as claimed in any one of claims 1 to 30, in which said Iext4e heat-resistant layer is in the form of a sheet and is fdded in haif and sewn together siong the Iwo opposite sides acjacent the fdd, to maie a tat bag, in which is located sad heat-instiaffng layer, and aiso sewn together aiong the side opposite the fdd.
32 A sheet as claimed in any one of claims ito 31, fc4ded in haif and sewn together aiong the two opposite sides acacent this fold, to maie a pouch into which may be placed a hot heated hair appliance 33. A Jexible heat-retardant sheet substanlisily according to any embodiment hereinbefore described 34 A Iexitde heat-retardant sheet substantiy according to any embodiment hereinbefore described with reference to the accompanying ckawlngs 35. A method of using a heat-retardant sheet as darned in any one of claims I to 34, in which a heated her appliance is rested upon the sheet and/or is wrapped in the sheet, when hot and/or whie becoming hot and/or it then becomes hot 36 A method as claimed in claim 35, in which the sheet is wrapped around the hot appliance.
37 A method as claimed in claim 35, in which the sheet is in the form of a pouch and the hot appliance is placed therein.
38. A method of using a heated h- appliance in which the appliance is placed on a heat-retardant sheet as darned in any one of claims Ito 34 whle it is being heated or whle it is hot 39. A method of preparing a heated hair appliance for transport, in which the appliance before and/or when being heated and/or when hot is wrapped in a heat-retardant sheet, as claimed in any one of dams 1 to 34 A method of transporting a heated hE appliance, in which the appliance whle hot is maintained during transport wrapped in a heat-retardant sheet as claimed in any one of claims ito 34.
41 A method of using a heat-retardant sheet, or using a heated hair appliance, or preparing a heated hair appliance for transport, or transporting a heated hair appliance, substantiy according to any example hereinbefore described.
42 A method of using a heat-retardant sheet, or using a heated h appliance, or preparing a heated her appliance for transport, or transporting a heated hair appliance, substantiaty according to any example hereinbefore described with reference to the accompanying drawings.
43 A flextie heat-retardant sheet comprising a lexible heakesjnt layer composing non-fatted woven matenat and below this layer, a exlble heatinsulabng layer comprising foam 44. A lethe heat-retardant sheet comprising a lexible heat-reastsnt layer comprising non-fatted woven materiat and, below this layer, a Jexible heat-insiiabng layer comprising foam, the sheet being suite for use as a heaketarnt M'per for a hot heated h piance.
45. A sheet as darned in dam 43 or 44, which comprises another lexible heat-restant layer on the opposite face of the instiabng layer 46. A sheet as darned in dam 45, in which the two said heat-resistsnt layers are in the form of sheets, one on either face of said instiaffng layer.
47 A sheet as daimed in dam 46, in which said sheets are sewn together.
48 A sheet as darned in any one of dams 45 to 47, in which the two said heat-restsnt layers are sewn together to form a bag to Con lain said instiahng layer.
49 A sheet as claimed in any one of claims 45 to 48, in which said other heat-resistsnt layer comprises non-fatted woven materW.
A sheet as darned in any one of claims 43 to 49, in which a said heatresistant layer comprises a heat-retardant polymer 51 A sheet as darned in any one of dams 43 to 50, in which a said heaf. resint layer comprises pdyamlda.
52. A sheet as claimed in any one of dams 43 to 51, in which a said heatresjn layer comprises polyester.
53 A sheet as darned in any one of dams 43 to 52, in which a said heatresistant layer comprises polyaramid 54. A sheet as darned in any one of claims 43 to 53, in which at least one said heat-resistant layer comprises A sheet as claimed in any one of clams 43 to 54, in which a said heat-resist layer comprises a coabng of polyurethane.
56 A sheet as claimed in any one of dams 43 to 55, in which a said heatresistant layer comprises means to atow or haip heat to read lateraty 57. A sheet as daimed in any one of claims 43 to 56, in which a said heatresistant layer compns a heat-conduce coabng.
58 A sheet as claimed in claim 57, in which said coeng comprises metat 59 A sheet as claimed in claim 58, in which sad metat comprises sJver. coloured metat A sheet as darned in claim 58 or 59, in which said metat comprises goId-cdoure metat 61 A sheet as darned in any one of dams 58 to 60, in which said coabng comprises carbon black 62 A sheet as claimed in any one of dams 43 to 61, in which said insulahng layer sin the form of a sheet.
63. A sheet as claimed in any one of claims 43 to 62, in which said insutabng layer has a thickness of not more than 10mm.
64 A sheet as claimed in claim 63, In which said Insulating layer has a thickness of substantiaty 3 mm A sheet as claimed in any one of dams 43 to 64, in which said foam is able to withstand a high temperare 1) 66 A sheet as claimed in daim 65, in which said foam comprises a thermafy insulating copdymer 67 A sheet as dairned in daim 65 or 66, in which sad foam comprises ethyiene i.lnyl acetate copdymer (EVA) 68 A sheet as darned in any one of dams 65 to 67, in which said foam comprises carbon black 69 A sheet as darned in any one of daims 43 to 68, in which said insulaflng layer comprises a materisi comprising any one or more of the fclowing materisis a sioxane, siicone rubber; an aiastomer; styrene butadiene rubber (SR); a blended rubber; a monomer elastic rubber A sheet as claimed in any one of claims 43 to 69, in which sad insulating layer comprises a materiel comprising an abity to withstand a temperature of 200 deees Cenflgracie 71. A sheet as darned in any one of claims 43 to 70, in which said lexEle heat-resistant layer is in the form of a sheet and is fdded in haif and sewn together deng the two opposite sides aacent the fcdd, to make a lat bag, in which is located said heaWnsulating layer, and elso sewn together eon9 the side opposite the feld.
72. A sheet as darned in any one of clams 43 to 71, kded in haif and sewn together eon9 the two opposite sides aci4acent this kid, to make a pouch into which may be placed a hot heated hair appliance 73 A lexible heat-retardant sheet as claimed in clam 43 and substantiy according to any embodment hereinbefore described.
74 A Jexible heat-retardant sheet as claimed in claim 43 and substantiy according to any embodiment hereinbefore described with reference to the accompanying &awings.
A method of using a heat-retardant sheet as claimed in any one of clams 43 to 74, in which a heated h appliance is rested upon the sheet and/or is wrapped in the sheet, when hot and/or whe becoming hot and/or it then becomes hot 76. A method as claimed in dam 75, in which the sheet is wrapped around the hot appliance 77 A method as darned in dam 75, in which the sheet is in the form of a pouch and the hot appliance is placed therein.
78 A method of using a heated her appliance in which the appliance is placed on a heat-redant sheet as darned in any one of claims 43 to 74 whle it is being heated or whie it is hot.
79 A method of prepanng a heated hair appliance for transport in which the appliance before and/or when being heated and/or when hot is wTapped in a heat-retardant sheet. as claimed in any one of daims 43 to 74 A method of transporting a heated hair appliance, in which the appliance whe hot is maintained during transport wrapped in a heat-retardant sheet as claimed in any one of dams 43 to 74 81 A method of using a heat-retardant sheet or using a healed hair appliance, or preparing a heated hair appliance for fransporl or transporting a heated hair appliance, as darned in any one of dams 75, 78, 79 or 80 and substantiy according to any example hereinbefore descnbed 82 A method of using a heat-retardant sheet or using a heated hair appliance, or preparing a heated hair appliance for transport, or transporting a heated hair appliance, as darned in any one of dams 75, 78, 79 or 80 and substanbclly according to any example hereinbefore described with reference to the accompanying drawings.
GB0514193A 2005-07-12 2005-07-12 Flexible heat retardant sheets Withdrawn GB2431136A (en)

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GB2451919A (en) * 2007-08-15 2009-02-18 Maria Anne Smyth Heat-resistant protective mat for use with a heated hair-shaping device
US20150007444A1 (en) * 2013-07-05 2015-01-08 Dyson Technology Limited Hand held appliance
US9420865B2 (en) 2013-07-05 2016-08-23 Dyson Technology Limited Hand held appliance
US9420864B2 (en) 2013-07-05 2016-08-23 Dyson Technology Limited Hand held appliance
US9596916B2 (en) 2013-07-05 2017-03-21 Dyson Technologies Limited Hand held appliance
US9681726B2 (en) 2013-07-05 2017-06-20 Dyson Technology Limited Hand held appliance
US9808065B2 (en) 2013-07-05 2017-11-07 Dyson Technology Limited Hand held appliance
US9808066B2 (en) 2013-07-05 2017-11-07 Dyson Technology Limited Hand held appliance
US11000105B2 (en) * 2019-02-26 2021-05-11 Vale Mill (Rochdale) Limited Tool holder

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GB2451919A (en) * 2007-08-15 2009-02-18 Maria Anne Smyth Heat-resistant protective mat for use with a heated hair-shaping device
WO2009022188A2 (en) * 2007-08-15 2009-02-19 Maria Anne Smyth Accessories for heated hair-shaping devices
WO2009022188A3 (en) * 2007-08-15 2009-05-07 Maria Anne Smyth Accessories for heated hair-shaping devices
US20150007444A1 (en) * 2013-07-05 2015-01-08 Dyson Technology Limited Hand held appliance
US9414662B2 (en) * 2013-07-05 2016-08-16 Dyson Technology Limited Hand held appliance
US9420865B2 (en) 2013-07-05 2016-08-23 Dyson Technology Limited Hand held appliance
US9420864B2 (en) 2013-07-05 2016-08-23 Dyson Technology Limited Hand held appliance
US9596916B2 (en) 2013-07-05 2017-03-21 Dyson Technologies Limited Hand held appliance
US9681726B2 (en) 2013-07-05 2017-06-20 Dyson Technology Limited Hand held appliance
US9808065B2 (en) 2013-07-05 2017-11-07 Dyson Technology Limited Hand held appliance
US9808066B2 (en) 2013-07-05 2017-11-07 Dyson Technology Limited Hand held appliance
US11000105B2 (en) * 2019-02-26 2021-05-11 Vale Mill (Rochdale) Limited Tool holder

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