GB2227500A - Flame retardant felt - Google Patents
Flame retardant felt Download PDFInfo
- Publication number
- GB2227500A GB2227500A GB8826430A GB8826430A GB2227500A GB 2227500 A GB2227500 A GB 2227500A GB 8826430 A GB8826430 A GB 8826430A GB 8826430 A GB8826430 A GB 8826430A GB 2227500 A GB2227500 A GB 2227500A
- Authority
- GB
- United Kingdom
- Prior art keywords
- felt
- flame retardant
- binder
- fibres
- substance
- 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- Withdrawn
Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 28
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000000126 substance Substances 0.000 claims abstract description 18
- 239000011230 binding agent Substances 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 229920002994 synthetic fiber Polymers 0.000 claims abstract description 11
- 229920000297 Rayon Polymers 0.000 claims abstract description 6
- 229920001807 Urea-formaldehyde Polymers 0.000 claims abstract description 4
- 229920000742 Cotton Polymers 0.000 claims abstract description 3
- 239000002964 rayon Substances 0.000 claims abstract description 3
- -1 urea-formaldehyde compound Chemical class 0.000 claims abstract description 3
- 210000002268 wool Anatomy 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000002706 dry binder Substances 0.000 claims description 3
- 229910019142 PO4 Inorganic materials 0.000 abstract description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 abstract description 2
- 235000011130 ammonium sulphate Nutrition 0.000 abstract description 2
- 239000001166 ammonium sulphate Substances 0.000 abstract description 2
- 239000006260 foam Substances 0.000 abstract description 2
- 229920002689 polyvinyl acetate Polymers 0.000 abstract description 2
- 239000011118 polyvinyl acetate Substances 0.000 abstract description 2
- 239000004800 polyvinyl chloride Substances 0.000 abstract description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 abstract 1
- 229920001756 Polyvinyl chloride acetate Polymers 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 1
- 239000010452 phosphate Substances 0.000 abstract 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-M sulfamate Chemical compound NS([O-])(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-M 0.000 abstract 1
- 230000004888 barrier function Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical class O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- GEHMBYLTCISYNY-UHFFFAOYSA-N Ammonium sulfamate Chemical compound [NH4+].NS([O-])(=O)=O GEHMBYLTCISYNY-UHFFFAOYSA-N 0.000 description 1
- SWLVFNYSXGMGBS-UHFFFAOYSA-N ammonium bromide Chemical compound [NH4+].[Br-] SWLVFNYSXGMGBS-UHFFFAOYSA-N 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000012757 flame retardant agent Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/402—Amides imides, sulfamic acids
- D06M13/438—Sulfonamides ; Sulfamic acids
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
- D06M11/13—Ammonium halides or halides of elements of Groups 1 or 11 of the Periodic Table
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
- D06M11/55—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
- D06M11/56—Sulfates or thiosulfates other than of elements of Groups 3 or 13 of the Periodic Table
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
- D06M15/423—Amino-aldehyde resins
- D06M15/43—Amino-aldehyde resins modified by phosphorus compounds
- D06M15/433—Amino-aldehyde resins modified by phosphorus compounds by phosphoric acids
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Flame retardant felt comprises a mixture of synthetic and non synthetic fibres to which a flame retardant substance and binder has been applied. The non synthetic fibres may be viscose, rayon, wool or cotton, the flame retardant a urea-formaldehyde compound, inorganic or organic phosphate, or ammonium sulphate, sulphamate or bromide and the binder polyvinyl chloride or polyvinyl acetate. A felt of density 30 to 100 kgm<-3> may be sprayed, lick coated or foam coated with 10 to 100 gm<-2> of composition (on a dry basis) on each surface.
Description
IMPROVEMENTS IN AND RELATING TO FELTS
The present invention relates to an improved felt and to a method of manufacturing said felt.
According to a first aspect of the present invention there is provided a felt composed of a mixture of nonsynthetic and synthetic fibres, the felt having a flame retardant substance applied to one or both sufaces thereof.
The flame retardant substance imparts flame retardance to the felt by causing the non-synthetic fibres to carbonise on the surface of the felt when the latter is exposed to a flame source, thus providing a barrier to ignition of the felt.
Preferably, the felt comprises at least 30% nonsynthetic fibres, which may be regenerated fibres such as viscose or rayon as well as natural fibres such as wool or cotton.
Advantageously, the felt is made from waste fibres.
The flame retardant substance used in the present invention may be any suitable flame retardant chemical such as inorganic and organic phosphates, ammonium sulphate, ammonium sulphamate and ammonium bromide.
Alternatively, it has been found that certain urea formaldehyde compounds are particularly effective as flame retardant agents.
The flame retardant substance imparts flame retardance to the felt by causing the non-synthetic fibres to carbonise on the surface of the felt when the latter is exposed to a flame source, thus providing a barrier to ignition of the felt.
Because the felt is a mixture of synthetic and nonsynthetic fibres, the synthetic fibres will tend to melt and shrink away when exposed to a heat source, thus leaving behind a skeleton of non-synthetic fibres which also adds to the flame retardant property of the felt.
It is envisaged that the two types of fibre would be mixed substantially homogenously.
The felt is preferably a non-woven felt which is conveniently bonded prior to having the flame retardant chemicals applied thereto, using thermoplastic powders, thermoplastic fibres or synthetic resins.
The non-woven felt is preferably within the density range 30 to 100 Kg per cubic metre.
Preferably, the flame retardant substance is mixed with a suitable binder prior to application to the felt, so as to ensure good adhesion of the flame retardant substance to the fibre surface. Suitable resin binders include polyvinyl cholride and polyvinyl acetate.
Conveniently, the ratio of dry binder to dry flame retardant substance lies within the range 1:1 to 1:3.
The binder/flame retardant mixture is conveniently made into an aqueous mixture and applied to the felt by any suitable means such as spraying, lick coating, foam coating etc., spraying being the most preferred method.
Typical application rates of the flame retardant/binder mixture lie within the range 10 g per square metre to 100 g per square metre dry weight for each surface of the felt.
After application, the treated surface or surfaces of the felt are dried by a suitable drier such as a hot air oven, or infra red heater.
According to a second aspect of the present invention there is provided a method of manufacturing a flame retardant felt, the method comprising forming a felt from a plurality of fibres and applying a flame retardant substance to one or both surfaces of the felt.
The preferred embodiment of the invention will now be described so that the invention may be more fully understood.
A flame retardant felt is manufactured by first of all producing a non-woven felt from waste fibres, the felt comprising a mixture of synthetic and at least 30% non synthetic fibres. The felt is then bonded using a suitable bonding agent.
A fire retardant substance, preferablt a urea formaldehyde compound, is mixed with a suitable binder such as polyvinyl chloride and made into an aqueous mixture.
The felt is then sprayed on both surfaces with the urea formaldehyde/binder mixture and dried by means of a hot air oven or infra red heater.
Claims (14)
1. Felt composed of a mixture of nonsynthetic and synthetic fibres. the felt having a flame retardant substance applied to one or both surfaces thereof.
2. Felt as claimed in Claim 1. comprising at least 30% non synthetic fibres.
3. Felt as claimed in Claim 2, wherein the non synthetic fibres are selected from viscose, rayon, wool and cotton.
4. Felt as claimed in any preceding claim, wherein the flame retardant substance is a urea-formaldehyde compound.
5. Felt as claimed in any preceding claim comprising a nonwoven felt having a density of 30 to 100 kg m 3
6. Felt as claimed in any preceding claim, wherein the flame retardant substance is mixed with a binder.
7. Felt as claimed in Claim 6. wherein the ratio of dry binder to dry flame retardant lies in the range of 1:1 to 1:3.
8. Felt as claimed in claim 6 or 7, wherein the retardant and binder are applied at 10 to 100 gm 2 for each surface of the felt.
9. A method of manufacture of flame retardant felt comprising the steps of forming a felt from a plurality of fibres and applying a flame retardant substance to one or both surfaces of the felt.
10. A method as claimed in Claim 9, wherein the flame retardant substance is mixed with a binder prior to application to the felt.
11. A method as claimed in Claim 10, wherein the ratio of dry binder to dry flame retardant substance is 1:1 to 1:3.
12. A method as claimed in Claim 10 or 11, wherein the retardant/binder mixture is applied at a rate of 10 to 100 gm 2.
13. Felt substantially as hereinbefore described.
14. A method of manufacture of felt substantially as hereinbefore described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8826430A GB2227500A (en) | 1988-11-11 | 1988-11-11 | Flame retardant felt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8826430A GB2227500A (en) | 1988-11-11 | 1988-11-11 | Flame retardant felt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8826430D0 GB8826430D0 (en) | 1988-12-14 |
| GB2227500A true GB2227500A (en) | 1990-08-01 |
Family
ID=10646708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8826430A Withdrawn GB2227500A (en) | 1988-11-11 | 1988-11-11 | Flame retardant felt |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2227500A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2263241A (en) * | 1992-01-17 | 1993-07-21 | British Replin Ltd | Upholstery fabric |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1054877A (en) * | 1963-05-11 | |||
| GB876901A (en) * | 1957-02-22 | 1961-09-06 | Freudenberg Carl Kg | Improved method for the production of flameproof unwoven web materials |
| GB1066132A (en) * | 1963-05-21 | 1967-04-19 | Freudenberg Carl | Production of non-woven bonded materials |
| GB1082616A (en) * | 1963-10-10 | 1967-09-06 | Lennart Pihl | Method of making paper products suitable as substitutes for textile materials |
| GB1495962A (en) * | 1973-12-05 | 1977-12-21 | Leblanc R | Fire retarding textile materials |
| GB1556504A (en) * | 1975-11-08 | 1979-11-28 | Freudenberg Carl | Shape-retaining interlining assembly for clothing |
| GB2104931A (en) * | 1981-08-31 | 1983-03-16 | Stauffer Chemical Co | Flame retardant-smoulder resistant textile back-coating |
-
1988
- 1988-11-11 GB GB8826430A patent/GB2227500A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB876901A (en) * | 1957-02-22 | 1961-09-06 | Freudenberg Carl Kg | Improved method for the production of flameproof unwoven web materials |
| GB1054877A (en) * | 1963-05-11 | |||
| GB1066132A (en) * | 1963-05-21 | 1967-04-19 | Freudenberg Carl | Production of non-woven bonded materials |
| GB1082616A (en) * | 1963-10-10 | 1967-09-06 | Lennart Pihl | Method of making paper products suitable as substitutes for textile materials |
| GB1495962A (en) * | 1973-12-05 | 1977-12-21 | Leblanc R | Fire retarding textile materials |
| GB1556504A (en) * | 1975-11-08 | 1979-11-28 | Freudenberg Carl | Shape-retaining interlining assembly for clothing |
| GB2104931A (en) * | 1981-08-31 | 1983-03-16 | Stauffer Chemical Co | Flame retardant-smoulder resistant textile back-coating |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2263241A (en) * | 1992-01-17 | 1993-07-21 | British Replin Ltd | Upholstery fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8826430D0 (en) | 1988-12-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |