Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
  • C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/395—Bleaching agents
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/40—Dyes ; Pigments
  • C11D3/42—Brightening agents ; Blueing agents
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
  • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
  • Y10T428/2989—Microcapsule with solid core [includes liposome]

Definitions

• the encased fluorescent whiteners have a greatly enhanced stability during the storage life of the detergent.
• the weight ratio between fluorescent whitener and protective substances may be between 9:1 and 1:99; but in general it is between 4:1 and 1:4, preferably between 2:1 and 1:2.
• mers of acetic acid vinyl ester and crotonic acid also water-soluble salts of these polymeric acids, likewise water-soluble half esters and 'their salts, polyacrylamide, polyvinyl alcohol, water-soluble starch or sugar, shellac, casein, polysulphone resins, polymers with structural elements of the formula water-soluble urea/formaldehyde and melamine/for maldehyde condensation products, poly-[3,3'- methylimino-bis-trimethyleneadipic amide], polybenzooxazoles with structural elements of the formula cellulose sulphate ester, polyvinyl pipefidonqgelatin, pectin, heparin, alginic acid and its salts, polystyrenesulphonic acid, cyanoethyl cellulose, hydroxyalkyl cellulose.
• coating agents from the group of the polyvinyl pyrrolidones, polymers of acrylic and methacrylic acid and their esters and amide derivatives, styrene-maleic copolymers, polyvinyl alcohols, water-soluble starches, water-soluble urea/formaldehyde and melamine/formaldehyde condensation products, cellulose sulphate esters, carboxyalkyl cellulose, alginic acid and salts.
• Preferred coating agents are, as already mentioned, carboxyalkyl celluloses, such as carboxymethyl cellulose; also suitable are hydroxyethyl celluloses and polyvinyl alcohol.
• hydroxyalkyl cellulose is to be understood as meaning here in addition to the hydroxyalkyl cellulose in the narrow sense, e.g.
• hydroxypropyl cellulose or hydroxyethylhydroxypropyl cellulose also the alkylhydroxyalkyl cellulose, i.e., those cellulose ethers in which not all etherically bonded alkyl radicals contain hydroxyl groups, where they are water-soluble, thus, for example, water-soluble ethylhydroxyethyl celluloses, methylhydroxyethyl celluloses or methylhydroxypropyl celluloses. (Included in the term water-soluble are also substances which form colloidal aqueous solutions).
• the coating agents may be applied to the fluorescent whiteners singly or in admixture. Inaddition, they may contain additives, e.g. ionogenic or non-ionogenic dis-t -persing agents or plasticisers.
• Suitable fluorescent whiteners for the incorporation into the detergents according to the invention are: I. Bis-stilbene compounds of the formula wherein R represents a sulpho group or the salts thereof, R represents hydrogen, chlorine, methyl, methoxy or a sulpho group or the salts thereof. R and R independently represent hydrogen, chlorine, methyl or methoxy. Preferred compounds are those of the formula cw TT As active detergents it is possible to use anionic, cationic, amphoteric and non-ionogenic surfactants or mixtures of these surfactants. Anionic surfactants are preferred.
• the anionic surfactants comprise soaps and other carboxylates, derivatives of sulphur-oxyacids or phoswherein R and R independently represent hydrogen, chlorine, methyl or methoxy.
• V represents hydrogen or a sulpho group or the salts thereof
• V represents hydrogen, chlorine, a cyano group, a carboxyl group or a sulpho group or the salts thereof
• V represents hydrogen, methoxy or a sulpho group or the salts thereof
• V represents hydrogen or chlorine, with at least one of the substituents V to V, representing a sulpho group or the salts thereof.
• the preparations according to the invention contain the conventional detergent constituents.
• active detergents surfactants
• wetting agents e.g., polywaxes and polyglycols for increasing the soil suspending power
• supcrfatting agents fungicides and deodorants, also filler and the like.
• N-chloroimides such as trichloroisocyanuric acid and dichloroisocyanuric acid and the salts thereof, e.g. sodium or potassium tri- 0 chloroisocyanurate.
• other imides e.g. N-chlorosuccinimide, N- chlorophthalimide, l,3-dichloro-5,5- dimethylhydantoin etc.
• other compounds which split off hypochlorite e.g. trichloromelamine or N,N-dichlorobenzoylene-urea.
• lt is, of course, also possible to use inorganic salts of hypochlorous acid, such as lithium or calcium hypochlorite.
• Water-soluble salts of higher fatty and resinic acids may be cited as examples of soaps.
• sulphur-oxyacids are mostly sulphates, such as sulphates of higher alcohols or sulphonates, e.g. alkylbenzenesulphonates and olefin sulphonates.
• Preferred derivatives of phosphorus-oxyacids are phosphates, whereas e.g. disulphimide salts exemplify the type which contains nitrogen in the hydrophilic groups.
• the cationic surfactants comprise amines and their salts, for example N-Z-aminoethylstearylamine or N-2-aminoethylstearylamide, benzyl-dimethyl-stearylammonium chloride, trimethyl-cetyl-ammonium bromide, etc., also onium compounds and amino oxides.
• ethylene oxide adducts for example isooctylphenol
• Phosphates in particular condensed phosphates, sili- 5 cates, borates, carbonates and organic builders, for example the salts of nitrilotriacetic acid or ethylene-diamine-tetraacetic acid may be used as water-soluble builders.
• biulder 0.5 to 10 parts of biulder are used to one part of surfactant (active detergent).
• the detergents according to the invention are used chiefly for washing cotton fabrics. But they may also be used with advantage for cleansing textiles made from other cellulose fibres, such as rayon, or other fibres, such as synthetic polyamides, e.g., silk, wool, polyester, cellulose acetates, polyacrylonitrile, or mixtures of two or more of these types of fibre, e.g., cottonpolyester fibre fabrics.
• cellulose fibres such as rayon, or other fibres, such as synthetic polyamides, e.g., silk, wool, polyester, cellulose acetates, polyacrylonitrile, or mixtures of two or more of these types of fibre, e.g., cottonpolyester fibre fabrics.
• the stabilisation of the fluorescent whitener(s) is attained by coating it (or them) with one of the substances cited hereinbefore.
• This coatings is carried out by dissolving or dispersing the fluorescentwhitener in an aqueous solution of the coating agent and then evaporating this solution to dryness, for example by the spray drying process.
• a storable dry preparation which may then at any desired time be further processed to manufacture the detergents according to the invention.
• the procedure generally is that the fluorescent whitener obtained in the manner described hereinbefore is distributed as uniformly as possible in the slurry which, except for the chlorine donor and optionally perborate, contains all the constituents of the detergent.
• the amount of fluorescent whitener to be pasted into the slurry is generally so fixed that the detergent according to the invention contains 0.01 to 2, preferably 0.05 to 1 percent by weight thereof.
• the detergent slurry is then dried, for example once more by spray drying.
• the end product is obtained by admixing the chlorine donor and optionally perborate with the thus obtained dry preparation.
• Example 1 A sodium carboxymethyl cellulose (62.5 g) with a low viscosity and an etherification degree of 0.8 is dissolved in 750 g of water. Then the sodium salt of 4,4- bis-(2-sulphostyryl)-diphenyl (62.5 g) is added to the solution. This mixture is homogenised and spray dried.
• the resulting dry preparation(4g) is then pasted into a slurry containing 150 g of dodecylbenzenesulphonate, 100 g of sodium lauryl sulphonate, 400 g of sodium tripolyphosphate, 255 g of calcined sodium sulphate, 70 g of sodium metasilicate (9 hydrate), g of carboxymethyl cellulose and 5 g of ethylenediamine-tetraacetic acid, and this mixture is then dried at 90C.
• the resulting product is granulated and then mixed with 50 g of trichloroisocyanurate.
• Samples of the thus manufactured product are tested for their whitening action after 1, 7 and 30 days storage at room temperature.
• Table -1 Detergent Sample Degree of whiteness of cotton samples after washing with detergent stored for days Similar results are obtained by using 4,4'-bis-(2- sulpho-5chloro-styryl)-diphenyl or its sodium salt instead of 4,4'-bis-(2-sulphostyryl)-diphenyl.
• Example 2 The process as described in Example 1 is carried out,
• Example 4 The process described in Example 1 is carried out, except that the sodium salt of 4-[naphtho-I.2,:4.5- triazolyl-(2)]-2-sulpho-stilbene is used as FWA and polyvinyl alcohol (Gohsenol CL 03) is used as coating agent and the fabric is washed at 50C.
• the results are given in the following Table.
• Example 2 untreated FWA detergent with FWA I95 195 195
• Example 2 The process described in Example 1 is carried out, except that the sodium salt of 4-[naphtho-1,2:4,5- triazo1yI-( 2)]-2-sulphostilbene is used as FWA and polyvinyl alcohol (Gohsenol GL O3) is used as coating agent and polyamide samples (Bodanyl-Helanca) are washed with the detergent samples at 30C
• Table 5 The results are given in the following Table 5.
• Example 7 Detergent Sample Degree of whiteness of cotton samples after washing with detergent stored for days detergent containing trichloroisocyanurate and FWA treated with polyvinyl alcohol detergent containing trichloroisocyanurate and untreated FWA detergent with FWA 215 215 215 8
• Example 7 The process described in Example I is carried out, except that the sodium salt of 4-(2-sulphostyryI)-4'-(2- chlorostyryl)diphenyl is used as FWA and polyvinyl alcohol (Gohsenol GL O3) is used as coating agent and the polyamide samples (Bodanyl-Helanca) are washed with the detergent samples at 30C.
• Table VII Detergent Sample Degree of whiteness of cotton samples after washing with detergent stored for days detergent containing trichloroisocyanurate and FWA treated with polyvinyl alcohol detergent containing trichloroisocyanurate and untreated FWA detergent with FWA 215 215 215 8
• Example 7 The process described in Example
• Example 8 The process described in Example 1 is carried out, except that 50 g of FWA is treated with g of hydroxycellulose (Klucel E) and 5 g of this product is pasted into the detergent slurry and the washing tests are carried out after 2 hours, 3 and 12 days. The results are given in the following Table.
• Dry, free-flowing detergent compositions consisting essentially of a surfactant, a chlorine donor which releases hypochlorite ions on contact with water and a fluorescent whitener selected from the group consisting of a distyryldiphenyl whitener of the formula 9 wherein R represents a sulpho group or the salts 4.
• R represents hydrogen, chlorine, methyl
• the fluorescent whitener particles contain carmethoxy or a sulpho group or the salts thereof
• R and boxymethyl cellulose, hydroxypropyl cellulose or poly- R independently represent hydrogen, chlorine, methyl vinyl alcohol as water-soluble organic coating agent. or methoxy and astilbylnaphthotriazole whitener of the 5 5.
• V represents hydrochlorine, methyl or methoxy.
• rescent whitener and said water-soluble organic pro which contain 4,4-bis-(2-sulphostyryl)-diphenyl as flutecting agent being between 9:1 and 1:99. crescent hit 2.
• Dry, free-flowing detergent compositions accord- 9.
• a process for the manufacture of products of the stilbylnaphthotriazoles which contains at least one sulcomposition cited in claim 1, wherein a solution or dispho group (or the salts thereof) and the particles of persion of the fluorescent whitener in an aqueous soluwhich are encased by a water-soluble coating agent. tion of the coating agent is evaporated to dryness, the Detergent compositions according to claim 1 resultlng dry preparation pasted into the detergent wherein the fluorescent whitener particles contain car- 5 Slurry whlch evaporated, and the resultmg P boxymethyl cellulose as water-soluble organic coating i is option'flny granulated and the Chlorine. onor m mixed therewith.

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• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Detergent Compositions (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=4351079

Family Applications (1)

Country Status (5)

Cited By (8)

Citations (7)

• 1971
  • 1971-06-25 CH CH935371A patent/CH547349A/de not_active IP Right Cessation
• 1972
  • 1972-06-19 US US00263901A patent/US3846324A/en not_active Expired - Lifetime
  • 1972-06-19 CA CA145,038A patent/CA971454A/en not_active Expired
  • 1972-06-20 ZA ZA724248A patent/ZA724248B/xx unknown
  • 1972-06-24 JP JP6286572A patent/JPS5514119B1/ja active Pending

Patent Citations (7)

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