GB2071717A - Textile finishing - Google Patents
Textile finishing Download PDFInfo
- Publication number
- GB2071717A GB2071717A GB8107170A GB8107170A GB2071717A GB 2071717 A GB2071717 A GB 2071717A GB 8107170 A GB8107170 A GB 8107170A GB 8107170 A GB8107170 A GB 8107170A GB 2071717 A GB2071717 A GB 2071717A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- organic acid
- halogen containing
- containing organic
- zirconium
- 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.)
- Granted
Links
- 238000009988 textile finishing Methods 0.000 title description 2
- 238000011282 treatment Methods 0.000 claims abstract description 31
- 239000004744 fabric Substances 0.000 claims abstract description 17
- 210000002268 wool Anatomy 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 15
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 14
- 239000010936 titanium Substances 0.000 claims abstract description 14
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 13
- 150000002367 halogens Chemical class 0.000 claims abstract description 13
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004753 textile Substances 0.000 claims abstract description 12
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 12
- 150000007524 organic acids Chemical class 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 125000000129 anionic group Chemical group 0.000 claims abstract description 7
- 239000002253 acid Substances 0.000 claims description 34
- QHWKHLYUUZGSCW-UHFFFAOYSA-N Tetrabromophthalic anhydride Chemical group BrC1=C(Br)C(Br)=C2C(=O)OC(=O)C2=C1Br QHWKHLYUUZGSCW-UHFFFAOYSA-N 0.000 claims description 21
- -1 carboxy, sulpho, sulphino, sulphamyl Chemical group 0.000 claims description 6
- 230000002378 acidificating effect Effects 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000002243 precursor Substances 0.000 claims description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 2
- 125000005843 halogen group Chemical group 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 claims description 2
- 125000001476 phosphono group Chemical group [H]OP(*)(=O)O[H] 0.000 claims description 2
- 150000003754 zirconium Chemical class 0.000 claims description 2
- XIRDTMSOGDWMOX-UHFFFAOYSA-N 3,4,5,6-tetrabromophthalic acid Chemical compound OC(=O)C1=C(Br)C(Br)=C(Br)C(Br)=C1C(O)=O XIRDTMSOGDWMOX-UHFFFAOYSA-N 0.000 claims 1
- 150000008064 anhydrides Chemical class 0.000 abstract description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 19
- 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 description 6
- 239000003063 flame retardant Substances 0.000 description 6
- 229910020148 K2ZrF6 Inorganic materials 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229920001778 nylon Polymers 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 125000001931 aliphatic group Chemical group 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229910020491 K2TiF6 Inorganic materials 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 238000012505 colouration Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005108 dry cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- DJKGDNKYTKCJKD-BPOCMEKLSA-N (1s,4r,5s,6r)-1,2,3,4,7,7-hexachlorobicyclo[2.2.1]hept-2-ene-5,6-dicarboxylic acid Chemical compound ClC1=C(Cl)[C@]2(Cl)[C@H](C(=O)O)[C@H](C(O)=O)[C@@]1(Cl)C2(Cl)Cl DJKGDNKYTKCJKD-BPOCMEKLSA-N 0.000 description 1
- AJHPGXZOIAYYDW-UHFFFAOYSA-N 3-(2-cyanophenyl)-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoic acid Chemical compound CC(C)(C)OC(=O)NC(C(O)=O)CC1=CC=CC=C1C#N AJHPGXZOIAYYDW-UHFFFAOYSA-N 0.000 description 1
- ZAJAQTYSTDTMCU-UHFFFAOYSA-N 3-aminobenzenesulfonic acid Chemical compound NC1=CC=CC(S(O)(=O)=O)=C1 ZAJAQTYSTDTMCU-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000684057 Langermannia gigantea Species 0.000 description 1
- 229920002821 Modacrylic Polymers 0.000 description 1
- 229920006282 Phenolic fiber Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 241000243621 Vandenboschia maxima Species 0.000 description 1
- 241000282840 Vicugna vicugna Species 0.000 description 1
- IPKJAOVRWNNNBX-UHFFFAOYSA-N [K].[K].[Zr] Chemical compound [K].[K].[Zr] IPKJAOVRWNNNBX-UHFFFAOYSA-N 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 229920006397 acrylic thermoplastic Polymers 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 210000000077 angora Anatomy 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- GHAFORRTMVIXHS-UHFFFAOYSA-L bromosulfophthalein sodium Chemical compound [Na+].[Na+].C1=C(S([O-])(=O)=O)C(O)=CC=C1C1(C=2C=C(C(O)=CC=2)S([O-])(=O)=O)C(C(Br)=C(Br)C(Br)=C2Br)=C2C(=O)O1 GHAFORRTMVIXHS-UHFFFAOYSA-L 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000675 fabric finishing Substances 0.000 description 1
- 238000009962 finishing (textile) Methods 0.000 description 1
- 238000007706 flame test Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 210000000050 mohair Anatomy 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000009044 synergistic interaction Effects 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 150000003755 zirconium compounds Chemical class 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
- D06M13/10—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 oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/207—Substituted carboxylic acids, e.g. by hydroxy or keto groups; Anhydrides, halides or salts thereof
- D06M13/21—Halogenated carboxylic acids; Anhydrides, halides or salts thereof
-
- 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
- D06M11/32—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 oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—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 oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
A method of finishing keratinous textile fabrics is disclosed which comprises treating the fabrics with an anionic titanium or zirconium complex at a pH in the range 1 to 4, and with a halogen containing organic acid or anhydride soluble in hot water, but preferably virtually insoluble in cold water. Such a treatment enables wool furnishing fabrics to meet the very stringent National Fire Protection Association standard 701-1969.
Description
SPECIFICATION
Textile finishing
This invention relates to a method of finishing keratinous fibrous textiles to render them flame retardant.
Keratinous fibres, e.g. wool, are naturally flame retardant but increasing stringency of regulations in various countries has means that certain constructions of wool fabrics, or fabrics for certain end uses, for example in aeroplanes or for protective clothing, require an additional flame retardancy treatment.
The titanium and zirconium flame retardancy treatments described in our U.K. Patent Nos. 1,372,694 and 1,379,752 have proved eminently suitable for improving the flame retardancy of wool textiles to meet the standards imposed by various legislative bodies.
Recently however a new standard is being increasingly adopted in the United States of America for furnishing fabrics. This standard is the National Fire Protection Association (NFPA) standard 7011969 (standard methods of fire tests for flame resistant textiles and films). It is specifies that five specimens shall be dried at 60 to 630C for between 1 and 13 hours and subjected to a vertical flame test in both warp and weft directions with 12 seconds igition time. None of the ten specimens tested should have an after-flaming time longer than 2 seconds, and the maximum average and individual char lengths are also specified depending on fabric weight. This is an extremely stringent test and many wool furnishing fabrics, would be in danger of failing it.
The invention seeks to provide a method of rendering wool furnishing fabrics sufficiently flame retardant to meet the above test.
According to the present invention there is provided a method finishing keratinous textile articles which comprises treating the articles with an anionic titanium or zirconium complex at low pH, and with a halogen-containing organic acid in aqueous solution at elevated temperatures.
The treatment with the anionic titanium or zirconium compound may take place before, after or simultaneously with treatment with the halogenated acid.
The halogen containing organic acid may be supplied as such, or an acid percursor, i.e. a compound which produces the acid under the conditions of treatment, may be used. Because of ease of availability, the acid anhydride is a generally preferred acid precursor.
The organic acid should contain, apart from one or more halogen groups, one or more acidic groups such as carboxy (HOOC-), sulpho (HO3S-), sulphino (HO2S-) sulphamyl (H2NO2S-) phosphono ( (HO)20P) and/or phosphinico (HOOP=). The halogen containing compound may also be an anhydride, which in acidic conditions and in hot water is converted into its respective acid. The acidic group enables the compound to exhaust at low pH, typically below pH4, onto the wool fibre which under these conditions contains positively charged amino groups. The acidic group or groups can be attached to a brominated and/or chlorinated aliphatic, aromatic or cyclic chain which can itself contain further reactive groups.It is desirable that the solubility of the halogen containing organic acid in "cold" water i.e., in water up to 500C, should be very low, for example less than 0.1%, to ensure that the textile treated with such acid is fast to subsequent washing. On the other hand, the solubility of the acid or anhydride should rapidly increase in "hot" water, i.e. above 50"C, to allow exhaustion of the acid from aqueous solution onto the fibre. However, it has been found that, especially where the free acid is employed, application according to the invention, in the presence of an anionic titanium or zirconium complex at low pH, is possible even at temperatures as low as about 500 C. Thus, the phase "at elevated temperatures" means at temperatures at about 500C or more.It is also preferred that, in the case of an halogenated aliphatic acid, the aliphatic chain should contain more than four --CH,,- groups to achieve low solubility of the acid in water at temperatures below about 600 C. Examples of such acids include: 2,4,6-tribomo, 3-amino benzoic acid; 3,4,5,6-tetrachloropthalic acid or anhydride; chlorendic acid; 2,4,6-tribomo, 3-amino benzene sulphonic acid; sulphobromophthalein; 2-bromp-pentanoic acid; and 2-bromo-actanoic acid. Tetrabromophthalic anhydride (TBPA), or the free acid produced therefrom (TBP Acid), is particularly preferred.
The treatment with titanium or zirconium may be carried out as described in our above U.K.
Patents, the entire contents of which are incorporated herein by reference. In brief, the metals are applied, preferably by exhaustion as anionic complexes with fluoride, citrato, or tartrato ions at a pH in the range 1 to 4. The titanium treatment is more effective, weight for weight, than the zirconium treatment but leads to slight yellow colouration and should generally be used only with dark shades or where colouration is immaterial.
The keratinous fibres may be for example mohair, silk, alpaka, vicuna, angora, or especially wool, and the textile article may be in the form of loose stock, slivers, slubbings, rovings, yarns, fabrics, made up garments or carpets; but, as mentioned above, the invention is particularly useful with furnishing fabrics and protective clothing.
The keratinous fibres may be present in the textile articles as a blend with other fibres, natural or synthetic. When articles of fibrous blends are used, it is preferred, but by no means essential, for the blends to be wool rich. Examples of other fibrous materials with which the keratinous fibres can be blended include polyamide, polyester, acrylics, cellulosics, polypropylene, aramid, flame-resist treated cotton, novoloid, polychlal, flame-resist treated rayon, modacrylic, polyvinyl chloride, P.B.I., and the like fibrous materials.
The titanium or zirconium treatments may be applied in the ranges of 0.5% to 2.5% or 1% to 5%
respectively (calculated as oxides) depending on the substrate and the level of flame retardancy
required. Similarly the level of halogen containing acid may be in the range of from 2% to 10% oww.
with 4% to 8% being preferred.
Although certain halogen containing acids are known as flame retardancy agents in their own right, none of them is able to meet the very stringent NFPA standard 707-1969, whereas we have surprisingly found that the combination of the invention is able to meet the standard while either component applied separately does not without the application of excessive quantities of chemical, reducing the 'handle' and quality of the treated fabric. While the usefulness of the invention is no way dependent of the correctness of the supposition, it is believed that a synergistic interaction takes place since the titanium/zirconium treatments operate in the solid phase while the halogen containing acid treatment operates in the vapour phase to retard flame propagation.
The invention will be illustrated further by the following examples.
EXAMPLES 1 TO 12
A 1 00% wool upholstery fabric, 450 g/m2 (1 3.2 oz/yd2), was treated by various flame retardant treatments as shown in Table I below in a winch, at a liquor to goods ratio of 30:1.
Tetrabromophthalic anhydride (TBPA) was dispersed with 1 O/o Albegal B (Ciba-Geigy - dispersing agent), before being added to the bath since it is insoluble in cold water. The treatments described in the following table was started in a cold bath, i.e. at ambient temperature, by the addition of hydrochloric acid (37%), to the liquor containing the fabric to be treated and, after 5 to 10 minutes, adding the TBPA dispersion and/or predissolved potasium flourozirconate or potasium flourotitanate. The bath was then brought to the boil over about 30 minutes and boiling was continued for a further 30 minutes followed by a cold rinse, hydro-extraction, drying and the usual fabric finishing procedure.
The results are summarised in Table I below from which it can be seen that treatment with TBPA alone (examples 2 to 5) fails the NFPA 701 test before cleaning. The same applies to the titanium and zirconium treatments of examples 6 and 11. However, the combination of the TBPA and either titanium or zirconium treatments easily meets the NFPA 701 test (examples 8 to 10 and 12) before and after ten dry-cleanings.
TABLE I
EFFECT OF VARIOUS FLAME-RETARDANT TREATMENTS ON THE PERFORMANCE OF A 100% WOOL UPHOLSTERY FARBIC
ACCORDING TO NFPA 701
Before Cleansing After 10 Dry-Cleanings Warp Weft Warp Weft Treatment Result Result M.B.T. M.C.L. M.B.T. M.C.L. M.B.T. M.C.L. M.B.T. M.C.L.
1. Untreated > 15 F.L. > 15 F.L. Fail - - - - 2. 10% HCl 37%, 2% TBPA > 15 F.L. > 15 F.L. Fail - - - - 3. 10% HCl 37%, 4% TBPA > 15 F.L. > 15 F.L. Fail - - - - 4. 10% HCl 37%, 6% TBPA > 15 F.L. > 15 F.L. Fail - - - - 5. 10% HCl 37%, 8% TBPA > 15 F.L. > 15 F.L. Fail - - - - 6. 10% HCl 37%, 8% K2ZrF6 4 3 4 3 Fail - - - - 7. 10% HCl 37%, 2% TBPA, 8% K2ZrF6 3 2.5 3 2.5 Fail - - - - 8. 10% HCl 37%, 4% TBPA, 8% K2ZrF6 2 2.5 2 2.5 Pass 2 2.5 2 2.5 Pass 9. 10% HCl 37%, 6% TBPA, 8% K2ZrF6 1 2 1 2 Pass 1 2 1 2 Pass 10. 10% HCl 37%, 8% TBPA, 8% K2ZrF6 1 2 1 2 Pass 1 2 1 2 Pass 11. 10% HCl 37%, 4% K2TiF6 3 2.5 3 2.5 Fail - - - - 12. 10% HCl 37%, 6% TBPA, 4% K2TiF6 1 2 1 2 Pass 1 2 1 2 Pass Performance Requirement #2 #4 #2 #4 #2 #4 #2 #4 All treatments applied for 30 minutes at the boil.
M.B.T. - maximum butning time in seconds.
M.C.L. - maximum char lenght in inches.
F.L. - full length (12 inches).
TBPA - tetrabromophthalic anhydride was applied in a dispersion with 1% Albegal B (Ciba-Geigy) o.w.w.
EXAMPLES 13 TO 18
The same fabric as in Examples 1 to 12 was treated by various flame retardant treatments, summarised in Table II, in a winch, at a liquor to goods ratio of 1:30.
In these examples tetrabromophthalic anhydride was coverted to its acid form, prior to the treatment, by the following procedure. 1 kg of TBPA was dissolved in 4 kg of a 10% solution of sodium hydroxide, by stirring for about 2 minutes, until dissolution. This converted the anhydride into the soluble sodium salt of the acid. 1 kg of hydrochloric acid 37% was slowly added to the clear solution.
This resulted in the neutralisation of the strongly alkaline solution and precipitation of the TBP Acid.
The treatments were carried out as in Examples 1 to 12, except that the required concentration of
TBP Acid was used instead of TBPA and the treatment temperatures were as indicated in Table II.
The results summarised in Table II indicate that by applying the TBP Acid, instead of the anhydride, in the presence of the zirconium complexes it is possible to decrease the treatment temperature from the boil to about 5O600C. The results also show the beneficial effect of the combined TBP Acid and Zirpro treatment, when compared with treatment with the acid alone. TABLE II
EFFECT OF TREATMENT TEMPERATURE ON FLAME-RETARDANCE OF 100% WOOL FABRIC
ACCORDING TO NFPA 701
Treatment Temperature Treatment 40 C 50 C 60 C 70 C 80 C 90 C 100 C 13. 3% TBP Acid, 10% HCl 37% F F F F F F F 14. 4% TBP Acid, 10% HCl 37% F F F F F F F 15. 7% TBP Acid, 10% HCl 37% F F F F F F F 16. 3% TBP Acid, Zirpro F P F F F P P 17. 5% TBP Acid, Zirpro F P P P P P P 18. 7% TBP Acid, Zirpro P P P P P P P Zirpro - 10% HCl 37%, 8% K2 Zr F6
P - Pass NFPA 701
F - Fail NFPA 701 EXAMPLES 1921 The following fabrics were treated according to the recipe described in Example 1 7 Ex. No.
19. 90/10 wool/nylon, 290 g/m2, woven
20. 80/20 wool/nylon, 290 g/m2, woven
21. 70/30 wool/nylon, 290 g/m2, woven
This treatment (5% TBP Acid, Zirpro) imparted adequate flame-retardance to all three wool/nylon blends to meet F.A.R. 25.853b. The 90/10 and 80/20 wool/nylon blends also met NFPA 701,
Claims (9)
1. A method of finishing keratinous textile articles which comprises treating the articles with an anionic titanium or zirconium complex at low pH, and with a halogen containing organic acid in aqueous solution at elevated temperatures.
2. A method as claimed in claim 1 in which the halogen containing organic acid is supplied as an acid precursor.
3. A method as claimed in either of claims 1 or 2 in which the organic acid contains, apart from one or more halogen groups, one or more acidic groups such as carboxy, sulpho, sulphino, sulphamyl, phosphono and/or phosphinico.
4. A method as claimed in any one of claims 1 to 3 in which the halogen containing organic acid is soluble in hot water and insoluble in cold water.
5. A method as claimed in any one of claims 1 to 4 in which the halogen containing organic acid or precursor is a tetrabromophthalic anhydride or free tetrabromophthalic acid.
6. A method as claimed in any one of claims 1 to 5 in which the level of halogen containing acid applied to the textile article is in the range of 2% to 10% by weight.
7. A method as claimed in any one of claims 1 to 6 in which the anionic titanium or zirconium complexes are complexes with fluoride, citrato, and/or tartrato ions applied at a pH in the range of from 1 to 4 and at a level of from 0.5% ti 2.5% or from 1% to 5% respectively (calculated as oxide).
8. A method as claimed in any one of claims 1 to 7 in which the keratinous textile article is a fabric made from wool fibres either alone or blended with other textile fibres.
9. A method as claimed in any one of claims 1 to 8 in which the titanium or zirconium treatment is carried out with potasium hexaflourozirconate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8107170A GB2071717B (en) | 1980-03-14 | 1981-03-06 | Textile finishing |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8008756 | 1980-03-14 | ||
| GB8107170A GB2071717B (en) | 1980-03-14 | 1981-03-06 | Textile finishing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2071717A true GB2071717A (en) | 1981-09-23 |
| GB2071717B GB2071717B (en) | 1983-03-16 |
Family
ID=26274826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8107170A Expired GB2071717B (en) | 1980-03-14 | 1981-03-06 | Textile finishing |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2071717B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4444914A (en) * | 1981-09-11 | 1984-04-24 | Smith Derek A | Smoke and toxic gas suppressant system |
| GB2235219A (en) * | 1989-08-22 | 1991-02-27 | Maruhachi Mawata Co Ltd | Fireproof feathers |
-
1981
- 1981-03-06 GB GB8107170A patent/GB2071717B/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4444914A (en) * | 1981-09-11 | 1984-04-24 | Smith Derek A | Smoke and toxic gas suppressant system |
| GB2235219A (en) * | 1989-08-22 | 1991-02-27 | Maruhachi Mawata Co Ltd | Fireproof feathers |
| JPH0382876A (en) * | 1989-08-22 | 1991-04-08 | Maruhachi Mawata:Kk | Method for flameproofing treatment of feather |
| JPH0440475B2 (en) * | 1989-08-22 | 1992-07-03 | Maruhachi Mawata Kk | |
| GB2235219B (en) * | 1989-08-22 | 1993-01-13 | Maruhachi Mawata Co Ltd | Process for preparing fireproof feathers |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2071717B (en) | 1983-03-16 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940306 |