EP0791048A1 - Verfahren zur herstellung von wasch- und reinigungsmitteltabletten durch mikrowellen- und heissluftbehandlung - Google Patents
Verfahren zur herstellung von wasch- und reinigungsmitteltabletten durch mikrowellen- und heissluftbehandlungInfo
- Publication number
- EP0791048A1 EP0791048A1 EP95937027A EP95937027A EP0791048A1 EP 0791048 A1 EP0791048 A1 EP 0791048A1 EP 95937027 A EP95937027 A EP 95937027A EP 95937027 A EP95937027 A EP 95937027A EP 0791048 A1 EP0791048 A1 EP 0791048A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hot air
- air treatment
- microwave
- tablets
- minutes
- 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
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000012459 cleaning agent Substances 0.000 title description 2
- 238000005406 washing Methods 0.000 title description 2
- 239000003599 detergent Substances 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 230000001678 irradiating effect Effects 0.000 claims 2
- 239000000203 mixture Substances 0.000 abstract description 9
- 230000005855 radiation Effects 0.000 abstract description 5
- 239000002253 acid Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 6
- 150000007513 acids Chemical class 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 4
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 4
- 239000011976 maleic acid Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- 150000004760 silicates Chemical class 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 2
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 2
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical class OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 2
- 239000001361 adipic acid Substances 0.000 description 2
- 235000011037 adipic acid Nutrition 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 2
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 2
- 229960004106 citric acid Drugs 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 229920005646 polycarboxylate Polymers 0.000 description 2
- 229920006324 polyoxymethylene Polymers 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000011975 tartaric acid Substances 0.000 description 2
- 235000002906 tartaric acid Nutrition 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- BDKLKNJTMLIAFE-UHFFFAOYSA-N 2-(3-fluorophenyl)-1,3-oxazole-4-carbaldehyde Chemical compound FC1=CC=CC(C=2OC=C(C=O)N=2)=C1 BDKLKNJTMLIAFE-UHFFFAOYSA-N 0.000 description 1
- KEZYHIPQRGTUDU-UHFFFAOYSA-N 2-[dithiocarboxy(methyl)amino]acetic acid Chemical compound SC(=S)N(C)CC(O)=O KEZYHIPQRGTUDU-UHFFFAOYSA-N 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical class NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920001503 Glucan Polymers 0.000 description 1
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 1
- 229920002845 Poly(methacrylic acid) Polymers 0.000 description 1
- 229920000805 Polyaspartic acid Polymers 0.000 description 1
- XYQRXRFVKUPBQN-UHFFFAOYSA-L Sodium carbonate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]C([O-])=O XYQRXRFVKUPBQN-UHFFFAOYSA-L 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001860 citric acid derivatives Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000174 gluconic acid Substances 0.000 description 1
- 235000012208 gluconic acid Nutrition 0.000 description 1
- 229940015043 glyoxal Drugs 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 239000001257 hydrogen Chemical group 0.000 description 1
- 229910052739 hydrogen Chemical group 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- NJGCRMAPOWGWMW-UHFFFAOYSA-N octylphosphonic acid Chemical compound CCCCCCCCP(O)(O)=O NJGCRMAPOWGWMW-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 description 1
- 150000003009 phosphonic acids Chemical class 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- -1 polyol carboxylic acids Chemical class 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- WSHYKIAQCMIPTB-UHFFFAOYSA-M potassium;2-oxo-3-(3-oxo-1-phenylbutyl)chromen-4-olate Chemical compound [K+].[O-]C=1C2=CC=CC=C2OC(=O)C=1C(CC(=O)C)C1=CC=CC=C1 WSHYKIAQCMIPTB-UHFFFAOYSA-M 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 229940087562 sodium acetate trihydrate Drugs 0.000 description 1
- 229940018038 sodium carbonate decahydrate Drugs 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 229960000999 sodium citrate dihydrate Drugs 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 235000019351 sodium silicates Nutrition 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 239000011973 solid acid Substances 0.000 description 1
- 239000013042 solid detergent Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- KUCOHFSKRZZVRO-UHFFFAOYSA-N terephthalaldehyde Chemical compound O=CC1=CC=C(C=O)C=C1 KUCOHFSKRZZVRO-UHFFFAOYSA-N 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000001226 triphosphate Substances 0.000 description 1
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
- C11D17/0047—Detergents in the form of bars or tablets
-
- 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
- C11D17/0047—Detergents in the form of bars or tablets
- C11D17/0065—Solid detergents containing builders
- C11D17/0073—Tablets
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S159/00—Concentrating evaporators
- Y10S159/26—Electric field
Definitions
- the invention relates to a method for producing detergent tablets using microwave technology and hot air treatment.
- hydrated under certain conditions with regard to temperature, pressure or relative humidity of the atmosphere to which the raw material is exposed or with which the raw material is in equilibrium is understood.
- the term “hydrated” is also defined in PCT / EP94 / 01330, in general, hydrated starting materials are those which contain bound crystal water or which are capable of water added from the outside to bind at least partially as water of crystallization or also those substances which do not form defined hydrates but are able to bind water, for example alkali metal hydroxides.
- microwaves is understood to mean the entire frequency range between 3 and 300,000 MHz, which thus also includes the radio wave range of 3 to 300 MHz in addition to the actual microwave range of above 300 MHz.
- macrosolids can be produced, which in addition to tablets also include blocks, for example.
- the premixes are connected to one another at the contact points by local melting / sintering caused by the microwave radiation.
- the cavities that exist between the individual premix components prior to irradiation with microwaves result in a high porosity of the resulting tablet and thus contribute to improving the dissolving properties of the tablet.
- premix components So that local premixing of the premix components is possible, at least some of them must have sintering properties on the surface. For this purpose, it is necessary that the premix components themselves or their surface contain sufficient water so that the contact points on the premix components are fused by heating this water. According to the teaching of the international patent application PCT / EP94 / 01330, at least part of the mixture to be irradiated with microwaves must be in hydrated form.
- tablettes is therefore not restricted to a specific spatial shape; in principle, any conceivable three-dimensional shape is possible, depending on the external shape of the powdery or granular premixes, e.g. is imposed by the container used.
- the object of the present invention is therefore to find a method in which the above-mentioned. Disadvantages do not occur, i.e. in which tablets are obtained which have a high breaking strength and at the same time have no charring.
- the object is achieved in that the premix is treated with hot air at a temperature of 50 ° C. to 300 ° C., preferably 100 ° C. to 250 ° C., in particular 150 ° C. to 220 ° C., during the irradiation process with microwaves.
- Suitable structural substances are, for example, amorphous silicates such as metasilicates or water glasses, phosphates, alkali carbonates, alkali sulfates, zeolites, but also organic components such as water-containing citrates, for example sodium citrate dihydrate, or water-containing acetates, for example sodium acetate trihydrate.
- Suitable substitutes or partial substitutes for Phosphates and zeolites are crystalline, layered sodium silicates of the general formula NaMSi x ⁇ 2 ⁇ + ⁇ , yH2 ⁇ , where M is sodium or hydrogen, x is a number from 1.9 to 4 and y is a number from 0 to 20 and preferred values for x 2 , 3 or 4 are.
- Such crystalline layered silicates are described, for example, in European patent application EP-A-0 164 514.
- Preferred crystalline layered silicates are those in which M represents sodium and x assumes the values 2 or 3.
- both ⁇ and f-sodium disilicate Na2Si2 ⁇ 5 * yH2 ⁇ are preferred.
- Usable organic builders are, for example, the polycarboxylic acids preferably used in the form of their sodium salts, such as citric acid, adipic acid, succinic acid, glutaric acid, tartaric acid, sugar acids, aminocarboxylic acids, nitrilotriacetic acid (NTA), provided that such use is not objectionable for ecological reasons. and mixtures of these.
- Preferred salts are the salts of polycarboxylic acids such as citric acid, adipic acid, succinic acid, glutaric acid, tartaric acid, sugar acids and mixtures of these.
- Suitable polymeric polycarboxylates are, for example, the sodium salts of polyacrylic acid or polymethacrylic acid, for example those with a relative molecular weight of 800 to 150,000 (based on acid).
- Suitable copolymeric polycarboxylates are, in particular, those of acrylic acid with methacrylic acid and of acrylic acid or methacrylic acid with maleic acid. Copolymers of acrylic acid with maleic acid which contain 50 to 90% by weight of acrylic acid and 50 to 10% by weight of maleic acid have proven to be particularly suitable.
- Their relative molecular weight, based on free acids is generally 5,000 to 200,000, preferably 10,000 to 120,000 and in particular 50,000 to 100,000.
- Biodegradable terpolymers are also particularly preferred, for example those which, as monomers, contain salts of acrylic acid and maleic acid and vinyl alcohol or Contain vinyl alcohol derivatives (P 43 00 772.4) or the salts of acrylic acid and 2-alkylallylsulfonic acid as monomers and sugar derivatives (DE 4221 381).
- Suitable builder systems are oxidation products of carboxyl group-containing polyglucosans and / or their water-soluble salts, as described, for example, in international patent application WO-A-93/08251. be written or the production of which is described, for example, in international patent application WO-A-93/16110.
- polyaspartic acids or their salts and derivatives are also to be mentioned as further preferred builder substances.
- polyacetals which can be obtained by reacting dialdehydes with polyolcarboxylic acids which have 5 to 7 carbon atoms and at least 3 hydroxyl groups, for example as described in European patent application EP-A-0 280 223 .
- Preferred polyacetals are obtained from dialdehydes such as glyoxal, glutaraldehyde, terephthalaldehyde and mixtures thereof and from polyol carboxylic acids such as gluconic acid and / or glucoheptonic acid.
- the inorganic and / or organic builder substances are preferably used in the tablets in amounts of about 10 to 60% by weight, in particular 15 to 50% by weight.
- Solid acids such as e.g. Amidosulfonic acid or phosphonic acids are used.
- nonionic surfactants such as e.g. Fatty alcohol ethoxylates.
- bleaching agents based on oxygen or chlorine, disinfectant agents such.
- quaternary ammonium compounds, foam inhibitors, enzymes, fillers etc. may be included.
- the duration of the irradiation process is usually between 15 seconds and 90 minutes, preferably between 1 minute and 30 minutes, in particular between 1 minute and 5 minutes.
- Another possibility according to the invention is to treat the tablets with hot air only after the irradiation process.
- the duration of the hot air treatment can in principle be as long as the tablet survives the hot air treatment without damage; for economic reasons it is up to 30 minutes, preferably up to 10 minutes, in particular up to 3 minutes.
- a method is particularly preferred in which the treatment with hot air takes place both during the irradiation process and after the irradiation.
- the duration of the hot air treatment is usually in the period already mentioned above.
- the hot air is generally generated by a conventional hot air blower with adjustable air temperature.
- Microwave radiation can e.g. in a microwave oven as described in PCT / EP94 / 01330; the products irradiated in this way can then be subjected to hot air treatment. It is also possible to carry out microwave irradiation and hot air treatment in the furnace at the same time. The microwave radiation and / or hot air treatment can therefore - as described - in a device, e.g. an oven, carried out in batches.
- the microwave irradiation (with simultaneous or subsequent or both simultaneous and subsequent hot air treatment) is preferably carried out in a continuous manner.
- a system is particularly suitable for this purpose in which the premixes to be irradiated are transported on a conveyor belt through a zone irradiated with microwaves.
- hot air is either blown directly into the irradiated zone or into a zone which immediately adjoins the irradiated zone or both into the irradiated zone and into the adjoining zone. Examples
- the manually pre-compressed premixes were generally more soluble after irradiation and hot air treatment according to the invention.
- the moldings were placed on a conveyor belt and transported through a zone irradiated with microwaves, with no hot air treatment being carried out.
Landscapes
- 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)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4439679 | 1994-11-07 | ||
DE4439679A DE4439679A1 (de) | 1994-11-07 | 1994-11-07 | Verfahren zur Herstellung von Wasch- und Reinigungsmitteltabletten durch Mikrowellen- und Heißluftbehandlung |
PCT/EP1995/004242 WO1996014391A1 (de) | 1994-11-07 | 1995-10-30 | Verfahren zur herstellung von wasch- und reinigungsmitteltabletten durch mikrowellen- und heissluftbehandlung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0791048A1 true EP0791048A1 (de) | 1997-08-27 |
EP0791048B1 EP0791048B1 (de) | 1999-06-02 |
Family
ID=6532650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95937027A Expired - Lifetime EP0791048B1 (de) | 1994-11-07 | 1995-10-30 | Verfahren zur herstellung von wasch- und reinigungsmitteltabletten durch mikrowellen- und heissluftbehandlung |
Country Status (11)
Country | Link |
---|---|
US (1) | US5914309A (de) |
EP (1) | EP0791048B1 (de) |
AT (1) | ATE180827T1 (de) |
DE (2) | DE4439679A1 (de) |
DK (1) | DK0791048T3 (de) |
ES (1) | ES2135101T3 (de) |
FI (1) | FI971932A (de) |
GR (1) | GR3030495T3 (de) |
NO (1) | NO971303L (de) |
NZ (1) | NZ295667A (de) |
WO (1) | WO1996014391A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2214844T3 (es) * | 1998-02-10 | 2004-09-16 | Unilever N.V. | Composiciones de detergente en pastillas. |
GB9807992D0 (en) | 1998-04-15 | 1998-06-17 | Unilever Plc | Water softening and detergent compositions |
GB9822090D0 (en) * | 1998-10-09 | 1998-12-02 | Unilever Plc | Detergent Compositions |
DE19948668A1 (de) * | 1999-10-08 | 2001-04-19 | Cognis Deutschland Gmbh | Waschmitteltabletten |
DE10010760A1 (de) * | 2000-03-04 | 2001-09-20 | Henkel Kgaa | Mehrphasige Wasch- und Reinigungsmittelformkörper mit nicht-gepreßten Anteilen |
DE10125441A1 (de) * | 2001-05-25 | 2002-12-05 | Henkel Kgaa | Verfahren und benötigte Zusätze zur Erhöhung der Stabilität von Tabletten |
DE10254314B4 (de) * | 2002-11-21 | 2004-10-14 | Henkel Kgaa | Verfahren zur Herstellung befüllter Wasch- und Reinigungsmittelformkörper II |
US8039531B2 (en) * | 2003-03-14 | 2011-10-18 | Eastman Chemical Company | Low molecular weight cellulose mixed esters and their use as low viscosity binders and modifiers in coating compositions |
US7893138B2 (en) * | 2003-03-14 | 2011-02-22 | Eastman Chemical Company | Low molecular weight carboxyalkylcellulose esters and their use as low viscosity binders and modifiers in coating compositions |
US8124676B2 (en) * | 2003-03-14 | 2012-02-28 | Eastman Chemical Company | Basecoat coating compositions comprising low molecular weight cellulose mixed esters |
US8461234B2 (en) * | 2003-03-14 | 2013-06-11 | Eastman Chemical Company | Refinish coating compositions comprising low molecular weight cellulose mixed esters |
US20080085953A1 (en) * | 2006-06-05 | 2008-04-10 | Deepanjan Bhattacharya | Coating compositions comprising low molecular weight cellulose mixed esters and their use to improve anti-sag, leveling, and 20 degree gloss |
US20070282038A1 (en) * | 2006-06-05 | 2007-12-06 | Deepanjan Bhattacharya | Methods for improving the anti-sag, leveling, and gloss of coating compositions comprising low molecular weight cellulose mixed esters |
SMP201200046B1 (it) * | 2012-10-24 | 2015-07-09 | Caffemotive Srl | Un metodo per la produzione di una compressa di unprodotto macinato in polvere per l'estrazione di bevande nonchè compressa ottenibile con tale metodo |
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BE617684A (de) * | 1961-05-15 | |||
JPS52587B2 (de) * | 1972-04-11 | 1977-01-08 | ||
DE2327956A1 (de) * | 1973-06-01 | 1974-12-19 | Henkel & Cie Gmbh | Verfahren zur herstellung von wasserloesliche hydratisierte salze enthaltenden granulaten, insbesondere wasch- und reinigungsmittelgranulaten |
US4405850A (en) * | 1978-10-06 | 1983-09-20 | Raytheon Company | Combination microwave heating apparatus |
US4584281A (en) * | 1981-09-18 | 1986-04-22 | The Clorox Company | Controlled delivery of immiscible materials into an aqueous system |
DE3413571A1 (de) * | 1984-04-11 | 1985-10-24 | Hoechst Ag, 6230 Frankfurt | Verwendung von kristallinen schichtfoermigen natriumsilikaten zur wasserenthaertung und verfahren zur wasserenthaertung |
US4885108A (en) * | 1986-08-12 | 1989-12-05 | Colgate-Palmolive Company | Method of shaping of soap bar |
DE3706036A1 (de) * | 1987-02-25 | 1988-09-08 | Basf Ag | Polyacetale, verfahren zu deren herstellung aus dialdehyden und polyolcarbonsaeuren und verwendung der polyacetale |
DE4010533A1 (de) * | 1990-04-02 | 1991-10-10 | Henkel Kgaa | Tablettierte wasch- und/oder reinigungsmittel fuer haushalt und gewerbe und verfahren zu ihrer herstellung |
US5108646A (en) * | 1990-10-26 | 1992-04-28 | The Procter & Gamble Company | Process for agglomerating aluminosilicate or layered silicate detergent builders |
BE1004876A5 (fr) * | 1991-05-27 | 1993-02-16 | Serstevens Albert T | Perfectionnement pour l'obtention de poudres a lessiver par micro-ondes. |
DE4134914A1 (de) * | 1991-10-23 | 1993-04-29 | Henkel Kgaa | Wasch- und reinigungsmittel mit ausgewaehlten builder-systemen |
DE4221381C1 (de) * | 1992-07-02 | 1994-02-10 | Stockhausen Chem Fab Gmbh | Pfropf-Copolymerisate von ungesättigten Monomeren und Zuckern, Verfahren zu ihrer Herstellung und ihre Verwendung |
DE4203923A1 (de) * | 1992-02-11 | 1993-08-12 | Henkel Kgaa | Verfahren zur herstellung von polycarboxylaten auf polysaccharid-basis |
DE4300772C2 (de) * | 1993-01-14 | 1997-03-27 | Stockhausen Chem Fab Gmbh | Wasserlösliche, biologisch abbaubare Copolymere auf Basis von ungesättigten Mono- und Dicarbonsäuren, Verfahren zu ihrer Herstellung und ihre Verwendung |
PL179871B1 (pl) * | 1993-05-05 | 2000-11-30 | Henkel Ecolab Gmbh & Co Ohg | uformowanego makrostalego produktu czyszczacegoi uformowany makrostaly produkt czyszczacy PL PL PL PL PL PL PL |
DE4429550A1 (de) * | 1994-08-19 | 1996-02-22 | Henkel Kgaa | Verfahren zur Herstellung von Wasch- oder Reinigungsmitteltabletten |
DE19601840A1 (de) * | 1996-01-19 | 1997-07-24 | Henkel Kgaa | Verfahren zur Herstellung von Wasch- oder Reinigungsmittelformkörpern |
-
1994
- 1994-11-07 DE DE4439679A patent/DE4439679A1/de not_active Withdrawn
-
1995
- 1995-10-30 NZ NZ295667A patent/NZ295667A/xx unknown
- 1995-10-30 DE DE59506121T patent/DE59506121D1/de not_active Expired - Fee Related
- 1995-10-30 AT AT95937027T patent/ATE180827T1/de not_active IP Right Cessation
- 1995-10-30 ES ES95937027T patent/ES2135101T3/es not_active Expired - Lifetime
- 1995-10-30 EP EP95937027A patent/EP0791048B1/de not_active Expired - Lifetime
- 1995-10-30 US US08/836,623 patent/US5914309A/en not_active Expired - Lifetime
- 1995-10-30 WO PCT/EP1995/004242 patent/WO1996014391A1/de active IP Right Grant
- 1995-10-30 DK DK95937027T patent/DK0791048T3/da active
-
1997
- 1997-03-20 NO NO971303A patent/NO971303L/no not_active Application Discontinuation
- 1997-05-06 FI FI971932A patent/FI971932A/fi unknown
-
1999
- 1999-06-10 GR GR990401570T patent/GR3030495T3/el unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9614391A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1996014391A1 (de) | 1996-05-17 |
DE4439679A1 (de) | 1996-05-09 |
NZ295667A (en) | 1998-10-28 |
DK0791048T3 (da) | 1999-12-13 |
DE59506121D1 (de) | 1999-07-08 |
GR3030495T3 (en) | 1999-10-29 |
FI971932A0 (fi) | 1997-05-06 |
NO971303D0 (no) | 1997-03-20 |
ES2135101T3 (es) | 1999-10-16 |
US5914309A (en) | 1999-06-22 |
FI971932A (fi) | 1997-05-06 |
EP0791048B1 (de) | 1999-06-02 |
ATE180827T1 (de) | 1999-06-15 |
NO971303L (no) | 1997-03-20 |
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