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
  • D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
  • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
  • D06L4/60—Optical bleaching or brightening
  • D06L4/664—Preparations of optical brighteners; Optical brighteners in aerosol form; Physical treatment of optical brighteners
• • 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
  • D06M13/12—Aldehydes; Ketones
  • D06M13/127—Mono-aldehydes, e.g. formaldehyde; Monoketones
• • 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
  • D06M13/144—Alcohols; Metal alcoholates
• • 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
  • D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
  • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
  • D06P3/34—Material containing ester groups
  • D06P3/52—Polyesters
  • D06P3/54—Polyesters using dispersed dyestuffs

Definitions

• the present invention relates to a stable preparation of a treatment agent for textile substrates.
• it relates to a new, stable, concentrated or diluted liquid formulation of an optical brightener for brightening fiber materials, in particular finished products such as Underwear and especially curtains made of synthetic fiber materials, preferably polyester fibers.
• the procedure is usually such that applying sparingly water-soluble optical brighteners to the textile material by means of a pull-out process or, in particular, by a padding process, and the material is then heat-set at temperatures above 100 ° C.
• the problem specified for lightening made-up textile materials also applies to the dyeing or finishing of these materials with e.g. Antimicrobials, softening agents, UV adsorbers, pigments, plasticizers or dirt-repellent agents.
• the solution to this problem is to use specific preparations, as described below, for the treatment, in particular when optically brightening natural or synthetic fiber materials, preferably textiles made of polyester fibers or blended fabrics with a predominant polyester content and, above all, curtains made of polyester fibers.
• These preparations have a correspondingly pronounced effectiveness.
• Components (a), (b), (c), (d) and (e) can be present as individual compounds or as a mixture.
• Preferred preparations contain all of the specified components (a), (b), (c), (d) and (e) or in particular components (a), (b) and (c) or especially (a), (b), (c) and (d).
• the organic solvents which can be considered as component (a) are preferably those which are volatile, water-insoluble or only water-soluble to a limited extent and at the same time can form an organophilic or organic liquid phase.
• Limited water solubility means less than 0.1%, i.e. at room temperature at most one gram of solvent should dissolve in one liter of water.
• solvents with a flash point above 50 ° C which are non-toxic and do not smell strongly or at least have a pleasant smell and which can be removed easily and completely, such as aliphatic hydrocarbons, benzyl alcohol, phenoxyethanol, propylene carbonate, malonic acid diesters, for example malonic acid dimethyl and ' diethyl ester; Benzoic acid esters (methyl, ethyl, butyl), diesters of adipic acid, for example dimethyl and diethyl adipates; Acetic acid esters such as 2-ethyl-hexyl acetate, 2-n-butoxy-ethyl acetate, benzyl acetate or phenyl acetate, diethyl oxalate, dimethyl or diethyl succinate, oleyl alcohol or alkylbenzenes such as trimethylbenzene and ethylbenzene; also diethylene glycol diethyl ether or 2,6-
• the solvents that dissolve the carrier medium which usually form a second phase in water, are only necessary for the even application of the carrier to the lipophilic substrate. After application, they are rather superfluous and should either evaporate or remain in the rinse water.
• the carrier medium (b) can be liquid or solid or can also consist of a combination of solid and liquid carrier substances.
• Liquid carrier media are understood to mean organic, lipophilic liquids with extremely low vapor pressure (1 mm at 150 ° C.), for example so-called plasticizers or plasticizers. Glycerol triesters such as triacetin, phosphoric acid esters are particularly advantageous; acyclic (aliphatic) dicarboxylic acid esters, for example adipates such as adipic acid dioctyl ester, phthalic acid mono- or diesters, and also fatty acid esters or epoxy plasticizers The ester fraction of the phthalic acid esters is preferably derived from aliphatic alcohols having 1 to 22 carbon atoms.
• Dimethyl phthalate, diethyl phthalate, dibutyl phthalate or di-2-ethylhexyl phthalate, di-3,5,5-trimethylhexyl phthalate, dioctyl phthalate or diisononyl phthalate are particularly suitable. Particularly preferred among these are the diesters of phthalic acid with alkanols having 1 to 9 carbon atoms.
• Alfolen are linear primary alkanols.
• Phthalic acid esters of the formula are preferred in which R is an aliphatic hydrocarbon radical having 6 to 22 carbon atoms, advantageously alkyl or alkenyl each having 6 to 22 carbon atoms, preferably 12 to 18 carbon atoms, of V and V 2 of a hydrogen or methyl and the other hydrogen, Z hydrogen or alkyl having 1 to 4 carbon atoms, in particular methyl or ethyl and n is 1 to 4, preferably 2 or 3.
• the ester group -COOR can be in the o-, m- or p-position. It is preferably in the o-position and thus forms the o-phthalic diester.
• R preferably denotes alkyl having 8 to 22 carbon atoms, in particular 12 to 18 carbon atoms and V and V 2 each being hydrogen.
• Z is primarily hydrogen.
• the amounts of the phthalic diesters suitably range from 1.5 to 30 percent by weight, preferably 2 to 20 percent by weight, based on the weight of the preparation.
• the carrier material is preferably solid and lipophilic. It should expediently dissolve the treatment agent (c) or, if (c) is insoluble, be able to hold it in fine dispersion.
• the carrier medium preferably dissolves component (c) used according to the invention and is itself dissolved in solvent (a).
• a suitable carrier medium is selected in accordance with the type of treatment agent to be used and in accordance with the intended use of the preparation according to the invention.
• the carrier medium (b) used according to the invention generally serves as a solid solution medium and, in particular if the treatment material (c) is insoluble in (a) and (b) as a binder for the treatment material, and optionally also at the same time as a finishing agent ( Softening agent, dirt-repellent, finishing agent) for the textile material to be treated.
• a finishing agent Softening agent, dirt-repellent, finishing agent
• Organosoluble synthetic resins such as e.g. Petroleum hydrocarbon resins, polyterpene resins, ester diol alkoxylates, ketone resins, polyamide resins, sulfonamide resins, silicone resins, isobutyraldehyde-formaldehyde resins, melamine-formaldehyde resins; Homo- and copolymers of acrylic acid, methacrylic acid, acrylic acid esters, methacrylic acid esters, acrylamide, methacrylamide, vinyl butyral, vinyl chloride, vinylidene chloride, vinyl alcohol, styrene, vinyl acetate, vinyl acetate / vinyl laurate, also vinyl acetal / vinyl acetate / vinyl alcohol terpolymers, polyolefins, polyepoxides, polyamides, Polyaminoamides, polyurethanes, polyhydantoins, polycarbonates, polysulfones, modified polyvinylpyrrol
• colorless such as, for example, rosins, alkyd resins, polyethylene waxes, phenol-formaldehyde resins, polybenzimidazoles.
• the amounts of synthetic resins used are advantageously between 0.5 and 40 percent by weight, preferably 5 and 25 percent by weight, based on the weight of the preparation.
• phthalic acid monoesters which are obtained by esterification of o-phthalic acid with a fatty alcohol of preferably 12 to 22 carbon atoms are also particularly suitable as component (b).
• Preferred phthalic acid monoesters have a softening point of at least 50 ° C.
• carboxylic acid esters are phthalic acid monostearyl esters, phthalic acid monobehenyl esters and monoesters of phthalic acid and a C 10 -C 14 fatty alcohol mixture such as, for example, the alfols.
• the phthalic acid monoesters are preferably also used in combination with the acidic component (d) and in particular with stearic acid.
• the amounts of the phthalic acid monoesters used are advantageously between 2 and 20 percent by weight, preferably 3 and 15 percent by weight, based on the weight of the entire preparation.
• the treatment agents (component (c)) which are sparingly soluble or insoluble in water are, in particular, optical brighteners (white toners) and dyes, such as, for example, disperse dyes, metal complex dyes or solvent-soluble dyes, finely dispersed dipophilic colored and white pigments, antistatic agents, antimicrobials, odorants, tanning agents , Moth repellants, water repellents, softening agents, softeners or dirt-repellants.
• optical brighteners white toners
• dyes such as, for example, disperse dyes, metal complex dyes or solvent-soluble dyes, finely dispersed dipophilic colored and white pigments, antistatic agents, antimicrobials, odorants, tanning agents , Moth repellants, water repellents, softening agents, softeners or dirt-repellants.
• Treatment agents which are particularly preferred according to the invention are optical brighteners which are sparingly soluble in water and which are preferably used for synthetic fibers, e.g. Polyamide fibers, polyacrylonitrile fibers and especially polyester fibers are used.
• the optical brighteners can belong to any brightener class.
• they are coumarins, triazolcoumarins, benzocoumarins, oxazines, pyrazines, pyrazolines, diphenylpyrazolines, stilbenes, styrylstilbenes, triazolylstilbenes, bisbenzoxazolylethylenes, stilbenes-bis-benzoxazoles, phenylstilbenzoxazoles, thiophene-bis-benzoxazole, benzophenazazolines, benzophenazinazoles, benzophenazazoles, , Furan-bis-benzimidazoles and naphthalimides.
• optical brighteners or of optical brighteners with suitable blue to violet-colored shading dyes can also be used according to the invention.
• the optical brighteners can also be used in combination with lipophilized white pigments, the white pigments being used in thermoplastics such as e.g. Polyester or polyamide are embedded and present in finely divided form.
• antimicrobials such as halogenated hydroxydiphenyl ether and moth protection agents, e.g. based on urea or especially 5-phenylcarbamoyl barbituric acid compounds and / or pyrethroids such as permethrin or cypermethrin.
• the water-insoluble carboxylic acids which are suitable as component (d) are, above all, fatty acids which advantageously have 8 to 24, preferably 12 to 2, 2 carbon atoms and can be saturated or unsaturated, such as, for example, the caprylic, pelargon, and caprine -, Laurin, Myristin, Palmitin, Stearin, Arachin, coconut fat (C 10 -C 16 ) -, tallow fat, behen, lignocerin, decen, dodecen, tetradecen, hexadecen, oil, linole, linolen, ricinol, eicosen, docosen; Hiragon, elaostearic, lican, parinar, arachidonic or clupanodonic acid.
• fatty acids which advantageously have 8 to 24, preferably 12 to 2, 2 carbon atoms and can be saturated or unsaturated, such as, for example, the caprylic, pelarg
• carboxylic acids which can be used according to the invention as component (d) are benzoic acid, hydroxybenzoic acid, gallic acid, phenylacetic acid or abietic acid. The focus of interest is on lauric acid, palmitic acid, behenic acid or in particular stearic acid or stearin.
• Component (d) is preferably used in combination with the neutral resins used as component (b). In certain cases, the carboxylic acids of component (d) can also be used as carrier medium (b). Component (d) is used in particular to improve the washability by alkaline washing of the equipment applied according to the invention.
• the amounts of the water-difficultly soluble carboxylic acids (component (d)) are advantageously between 2 and 15% by weight, preferably 4 to 10% by weight, based on the weight of the preparation.
• the preparations according to the invention can contain a water-miscible organic solvent as polar solvent (s).
• polar solvent s
• Such an addition serves to improve the distribution of the preparation when used in aqueous media, that is to say to distribute the droplets of the organic phase which are formed more finely, so that they do not coalesce too quickly.
• water-miscible organic solvents are aliphatic C 1 -C 3 alcohols such as methanol, ethanol or the propanols; Alkylene glycols such as ethylene glycol or propylene glycol; Monoalkyl ethers of glycols such as ethylene glycol monomethyl, ethyl or butyl ether and diethylene glycol monomethyl or ethyl ether; Ketones such as acetone, diacetone alcohol; Ethers such as diisopropyl ether, diphenyl oxide, dioxane, tetrahydrofuran, furthermore tetrahydrofurfuryl alcohol, pyridine, acetonitrile, N-methylpyrrolidone, y-butyrolactone, N, N-dimethylformamide, N, N-dimethylactamide, tetramethyl urea, tetramethylene sulfone.
• Alkylene glycols such as ethylene glycol or propy
• the preparation according to the invention can additionally contain small amounts of anionic, cationic, amphoteric or nonionic surfactants.
• Nonionic or cationic surfactants are preferred.
• the non-ionic surfactants are primarily used to unstably emulsify the organic phase.
• the anionic surfactants are preferably derivatives of alkylene oxide adducts, for example acidic ether groups or preferably ester groups of organic or inorganic acids, preferably containing sulfated addition products of alkylene oxides, especially ethylene oxide and / or propylene oxide or also styrene oxide onto aliphatic hydrocarbon radicals with a total of at least 4 carbon atoms having organic hydroxyl, carboxyl -, Amino and / or amido compounds such as higher fatty alcohols, fatty acids, fatty amines, fatty acid amides or alkylphenols or mixtures of these substances.
• the acidic ether or. Esters can be present as free acids or salts, for example alkali metal, alkaline earth metal, ammonium or amine salts.
• Preferred anionic surfactants are alkylarylsulfonates with straight-chain or branched alkyl chains with at least 6 carbon atoms in the alkyl part, for example nonyl or dodecylbenzenesulfonates or diisobutylnaphthalenesulfonates and sulfonates of dicarboxylic acid esters such as dioctylsulfosuccinates.
• the cationic surfactants can contain, for example, amino, imino, quaternary ammonium or immonium, tertiary phosphino, quaternary phosphonium or sulfonium groups, furthermore thioronium or guanidinium groups as basic substituents.
• Preferred basic substituents are tertiary amino groups and especially quaternary ammonium groups. These contain aliphatic, cycloaliphatic or araliphatic groups as N-substituents, where the N-substituents can also form five- to eight-membered, especially six-membered rings.
• Quaternary ammonium compounds of the formula have been found to be cationic surfactants for use in accordance with the present invention proven to be particularly suitable in which X is an aliphatic hydrocarbon radical having 6 to 22 carbon atoms, preferably 10 to 18 carbon atoms or a cycloaliphatic radical having 5 to 12 carbon atoms,
• Y 1 and Y 2 lower alkyl, preferably methyl or ethyl, or together with the nitrogen atom connecting them, a five- or six-membered saturated heterocyclic radical, such as pyrrolidino, piperidino or morpholino,
• pyridine ring optionally substituted by lower alkyl
• Q is the direct bond or oxygen
• An ⁇ is the anion of an organic or inorganic acid, for example the chloride, bromide or methosulfate ion.
• Lower alkyl generally represents those groups or group components which have 1 to 5, in particular 1 to 3, carbon atoms, such as, for example, Methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, tert-butyl or amyl.
• Particularly preferred quaternary ammonium compounds are n-dodecyloxymethyl-trimethylammonium chloride, n-dodecyl-trimethylammonium chloride and especially N-coco-N, N-dimethyl-N-benzylammonium chloride.
• cationic surfactants are quaternary polyammonium polymers, as described in German Offenlegungsschriften 2,657,582, 2,824,743, 2,840,785 and 2,857,180.
• cationic surfactants are amines or polyamines with 2 or more basic nitrogen atoms, preferably 2 to 5, which have at least one polyglycol ether chain and at least one lipophilic substituent (for example alkenyl or alkyl each having 8 to 22 carbon atoms) and can be partially or completely quaternized, into consideration.
• amphoteric surfactants are Amines or polyamines with 2 or more basic nitrogen atoms, preferably 2 to 5, which have at least one acidic, etherified or esterified polyglycol ether chain and at least one lipophilic substituent and can be partially or completely quaternized.
• amphoteric surfactants are the acidic monosulfuric esters from reaction products of 1 mole of fatty amine or fatty amine mixtures such as Tallow fatty amine with 2 to 15 moles of ethylene oxide is particularly preferred.
• the nonionic surfactants are expediently alkylene oxide addition products of 1 to 50 mol of alkylene oxide, for example ethylene oxide and / or propylene oxide, on 1 mol of an aliphatic monoalcohol with at least 4 carbon atoms, preferably 8 to 22 carbon atoms, of a trihydric to hexavalentic aliphatic alcohol with 3 up to 6 carbon atoms, one optionally substituted by alkyl or phenyl Phenol or a fatty acid having 8 to 22 carbon atoms.
• Block polymers of ethylene oxide and propylene oxide are preferably used. These block polymers preferably correspond to the formulas or and can have a molecular weight of 2,000 to 10,000.
• the ethylene oxide content (m 1 + m 2 or more) is 10 to 85 percent by weight and the propylene oxide content (y or y + y 2 ) is 15-90 percent by weight.
• nonionic surfactants the addition products of 2 to 15 moles of ethylene oxide with 1 mole of fatty alcohol, fatty acid each with 8 to 18 carbon atoms or alkylphenols with 4 to 12 carbon atoms in the alkyl part are particularly preferred as emulsifiers.
• the anionic, amphoteric and nonionic surfactants are preferably used in an amount of 0.1 to 1% by weight, based on the entire preparation, while the cationic surfactants up to 15% by weight, but preferably up to a maximum of 3% by weight. -% can be present.
• lipophilized pigments which are unreactive or not very reactive can also be used as auxiliaries with or without surfactants.
• examples of such pigments are: talc, titanium dioxide, zinc oxide, zinc sulfide, chalk; Clays such as kaolin; as well as organic pigments, e.g. Urea-formaldehyde or melamine-formaldehyde condensation products.
• organic pigments e.g. Urea-formaldehyde or melamine-formaldehyde condensation products.
• white pigments which are obtained by coating with a polymer containing a brightener, e.g. Polyester, lipophilized and at the same time tinted white.
• the preparations according to the invention can be prepared by simple stirring, if appropriate with gentle heating of the components (a), (b) and (c) mentioned and if appropriate (d), (e) and / or surfactants, homogeneous mixtures being obtained which Room temperature are stable in storage.
• the preparations according to the invention expediently represent stable liquid formulations which, depending on the form of application, can be used undiluted or diluted in the form of solutions, components (a) and (e) being suitable as solvents. They can also be used as a two-phase liquid system, pre-cut with water.
• the new formulations can be used for the optical brightening of a wide variety of synthetic, semisynthetic or natural organic fiber materials, which may be in the form of shaped articles such as threads, fibers, flakes or nonwovens.
• the preparations according to the invention are preferably suitable for treatment, in particular for the optical brightening of organic fiber material and above all of synthetic fiber material.
• the fiber material which can be optically brightened with the preparations according to the invention are, for example Chemical fibers from natural polymers (i) of vegetable origin, e.g. cellulosic fibers such as acetate and triacetate fibers and vegetable protein fibers and (ii) animal origin such as animal protein fibers.
• vegetable origin e.g. cellulosic fibers such as acetate and triacetate fibers and vegetable protein fibers
• animal origin such as animal protein fibers.
• synthetic fibers made from synthetically derived polymers such as polycondensate fibers (polyester, polyurea and polyamide fibers), polymer fibers (polyamide, polyacrylonitrile, modacrylic, polypropylene, polyvinyl acetal, polyvinyl chloride, polyvinylidene chloride, polyfluoroethylene fibers), polyaddition fibers (such as polyurethane) .
• synthetically derived polymers such as polycondensate fibers (polyester, polyurea and polyamide fibers), polymer fibers (polyamide, polyacrylonitrile, modacrylic, polypropylene, polyvinyl acetal, polyvinyl chloride, polyvinylidene chloride, polyfluoroethylene fibers), polyaddition fibers (such as polyurethane) .
• Linear polyester fibers are to be understood as synthetic fibers which e.g. can be obtained by condensation of terephthalic acid with ethylene glycol or of isophthalic acid or terephthalic acid with 1,4-bis (hydroxymethyl) cyclohexane, and also copolymers of terephthalic and isophthalic acid and ethylene glycol.
• the substrates to be treated according to the invention can also be made from conventional natural fiber materials such as be made of silk or especially wool.
• the fiber materials can also be used as a mixed fabric among themselves or with other fibers, e.g. Mixtures of polyacrylonitrile / polyester, polyamide / polyester, polyester / wool and for polyester / cotton and polyester / viscose are used, provided that the cellulose component does not predominate in terms of quantity.
• the textile material to be treated can be in various stages of processing.
• the following can be considered: loose material, knitwear such as knitted or woven fabrics, yarn in the form of a wrap or muff.
• Ready-made products such as e.g. Treated curtains and underwear.
• the amounts in which the preparation according to the invention is added to the treatment liquors vary between 1 and 40 percent by weight, preferably 10 and 25 percent by weight, based on the weight of the substrate, or between 0.1 and 100 g, preferably 1 and 25 g, per liter. Treatment fleet.
• the treatments are advantageously carried out from an aqueous liquor using the exhaust process.
• the liquor ratio can accordingly be chosen within a wide range, e.g. 1: 4 to 1: 100, preferably 1:20 to 1:70.
• the treatment liquors can also contain other additives and auxiliary substances, e.g. Contain bleaching agents, oxidizing agents, light stabilizers, antioxidants and / or finishing agents.
• auxiliary substances e.g. Contain bleaching agents, oxidizing agents, light stabilizers, antioxidants and / or finishing agents.
• the temperature at which the substrate is treated according to the invention is generally in the range from 10 to 96 ° C., preferably 15 to 40 ° C.
• the lightening step according to the invention can be combined with a prewash.
• the substrate is treated with an aqueous liquor containing a conventional detergent before the lightening process, and then rinsed carefully.
• the process according to the invention gives substrates which have the desired equipment.
• the curtain is then centrifuged and air dried. A pure white curtain with a dry, soft feel is obtained.
• the nonionic block polymer is replaced by an equal amount of a mixture of calcium dodecylbenzenesulfonic acid with castor oil, ethoxy gated with 35 moles of ethylene oxide, you also get very level white effects on the fiber substrates.
• polyester curtain instead of the polyester curtain, other knitted fabrics and also fabrics made of polyamide or polyacrylonitrile can be optically brightened in the same way and with the same success.
• the curtain is then centrifuged and air dried. You get a pure white curtain.
• the very strong blue fluorescent coating can be completely removed in an alkaline wash.
• the treated wool fabric is equipped with 95-100 ppm pyrethroid and barbiturate, and is fully protected against keratin-eating larvae, in particular larvae of the clothing moth (Tineola binelliella), the fur moth (Tinea pellionella) of the fur beetle (Attagenus piceus) and the carpet beetle (Anthrenus vorax).
• the curtain is then centrifuged and air dried. You get a curtain with an improved white effect compared to a just washed curtain.
• the treated curtain is then rinsed and air-dried. You get a pure white curtain.
• the white pigment used in this example is produced as follows.
• titanium dioxide instead of titanium dioxide, it is also possible to use other very finely divided white pigments such as barium sulfate, magnesium oxide, zinc oxide, zinc sulfide, aluminum hydroxide, calcium carbonate or urea-formaldehyde condensates, for example with a BET surface area of 3 to 75 m 2 / g, preferably 5 to 25 m 2 / g coated with polyester in the same way and then treated with the same brightener mixture.
• fluorescent lipophilic white toners can also be incorporated into the preparation (25) and applied successfully to curtains.
• the preparation (23) described in Example 18 is additionally 0.35% of an optical brightener of the formula (101) and 0.002% of a violet shading dye of the formula stirred in and kept at 70 ° C. for 30 minutes until completely dissolved, this results in a further preparation (26) which is applied to a washed polyester curtain in the same manner as described in Example 18. You get a curtain with enhanced white effects.
• the coating applied to the curtain and strongly blue fluorescent due to UV light can be completely removed in an alkaline wash.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Dispersion Chemistry (AREA)
• Life Sciences & Earth Sciences (AREA)
• Biochemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Microbiology (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

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• 1982
  • 1982-02-08 EP EP82810054A patent/EP0058637A1/fr not_active Withdrawn
  • 1982-02-08 US US06/346,706 patent/US4460374A/en not_active Expired - Fee Related

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