US3773671A - Production of granular mixtures - Google Patents
Production of granular mixtures Download PDFInfo
- Publication number
- US3773671A US3773671A US00178800A US3773671DA US3773671A US 3773671 A US3773671 A US 3773671A US 00178800 A US00178800 A US 00178800A US 3773671D A US3773671D A US 3773671DA US 3773671 A US3773671 A US 3773671A
- Authority
- US
- United States
- Prior art keywords
- percent
- enzyme
- tpp
- granules
- sodium
- 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.)
- Expired - Lifetime
Links
- 239000000203 mixture Substances 0.000 title claims description 44
- 238000004519 manufacturing process Methods 0.000 title description 8
- 235000019832 sodium triphosphate Nutrition 0.000 claims abstract description 25
- 239000002002 slurry Substances 0.000 claims abstract description 20
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000008187 granular material Substances 0.000 claims description 36
- -1 tripolyphosphate hexahydrate Chemical class 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 21
- 102000004190 Enzymes Human genes 0.000 abstract description 53
- 108090000790 Enzymes Proteins 0.000 abstract description 53
- 238000002360 preparation method Methods 0.000 abstract description 24
- 238000002156 mixing Methods 0.000 abstract description 14
- 229940088598 enzyme Drugs 0.000 description 51
- 239000003599 detergent Substances 0.000 description 35
- AYEKOFBPNLCAJY-UHFFFAOYSA-O thiamine pyrophosphate Chemical compound CC1=C(CCOP(O)(=O)OP(O)(O)=O)SC=[N+]1CC1=CN=C(C)N=C1N AYEKOFBPNLCAJY-UHFFFAOYSA-O 0.000 description 26
- 239000000047 product Substances 0.000 description 25
- 235000002639 sodium chloride Nutrition 0.000 description 18
- 150000003839 salts Chemical class 0.000 description 17
- 108091005804 Peptidases Proteins 0.000 description 14
- 102000035195 Peptidases Human genes 0.000 description 14
- 125000000217 alkyl group Chemical group 0.000 description 12
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 9
- 125000004432 carbon atom Chemical group C* 0.000 description 9
- 239000011324 bead Substances 0.000 description 8
- 239000011734 sodium Substances 0.000 description 8
- 229910052708 sodium Inorganic materials 0.000 description 8
- 125000000129 anionic group Chemical group 0.000 description 7
- 238000001035 drying Methods 0.000 description 7
- 239000012188 paraffin wax Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound 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 6
- 239000004365 Protease Substances 0.000 description 6
- 239000007859 condensation product Substances 0.000 description 6
- 235000014113 dietary fatty acids Nutrition 0.000 description 6
- 239000000194 fatty acid Substances 0.000 description 6
- 229930195729 fatty acid Natural products 0.000 description 6
- 229940024999 proteolytic enzymes for treatment of wounds and ulcers Drugs 0.000 description 6
- 230000000717 retained effect Effects 0.000 description 6
- 150000003871 sulfonates Chemical class 0.000 description 6
- 239000004094 surface-active agent Substances 0.000 description 6
- 229910019142 PO4 Inorganic materials 0.000 description 5
- 239000004115 Sodium Silicate Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 150000004665 fatty acids Chemical class 0.000 description 5
- 235000021317 phosphate Nutrition 0.000 description 5
- 235000019419 proteases Nutrition 0.000 description 5
- 239000000344 soap Substances 0.000 description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 5
- 229910052911 sodium silicate Inorganic materials 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 102000013142 Amylases Human genes 0.000 description 4
- 108010065511 Amylases Proteins 0.000 description 4
- 108091005658 Basic proteases Proteins 0.000 description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 150000001298 alcohols Chemical class 0.000 description 4
- 150000004996 alkyl benzenes Chemical class 0.000 description 4
- 235000019418 amylase Nutrition 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 150000002191 fatty alcohols Chemical class 0.000 description 4
- 230000036571 hydration Effects 0.000 description 4
- 238000006703 hydration reaction Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 235000019198 oils Nutrition 0.000 description 4
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000002797 proteolythic effect Effects 0.000 description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 description 4
- 235000011152 sodium sulphate Nutrition 0.000 description 4
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 4
- 239000004753 textile Substances 0.000 description 4
- 239000004382 Amylase Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 244000063299 Bacillus subtilis Species 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 108090000787 Subtilisin Proteins 0.000 description 3
- 102000005158 Subtilisins Human genes 0.000 description 3
- 108010056079 Subtilisins Proteins 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 125000002252 acyl group Chemical group 0.000 description 3
- 238000013019 agitation Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 3
- 102000004169 proteins and genes Human genes 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 230000003381 solubilizing effect Effects 0.000 description 3
- 125000001424 substituent group Chemical group 0.000 description 3
- 239000003760 tallow Substances 0.000 description 3
- 235000014469 Bacillus subtilis Nutrition 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- FFDGPVCHZBVARC-UHFFFAOYSA-N N,N-dimethylglycine Chemical compound CN(C)CC(O)=O FFDGPVCHZBVARC-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 2
- PSVXRBRATLTFCD-UHFFFAOYSA-N [Cl+].Cl[O-] Chemical compound [Cl+].Cl[O-] PSVXRBRATLTFCD-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 238000005282 brightening Methods 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 150000007942 carboxylates Chemical class 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 229940079919 digestives enzyme preparation Drugs 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 238000004851 dishwashing Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 125000001165 hydrophobic group Chemical group 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- DZCAZXAJPZCSCU-UHFFFAOYSA-K sodium nitrilotriacetate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CC([O-])=O DZCAZXAJPZCSCU-UHFFFAOYSA-K 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000008247 solid mixture Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 2
- 150000008053 sultones Chemical class 0.000 description 2
- 239000000375 suspending agent Substances 0.000 description 2
- HLZKNKRTKFSKGZ-UHFFFAOYSA-N tetradecan-1-ol Chemical compound CCCCCCCCCCCCCCO HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 description 2
- JNYAEWCLZODPBN-KVTDHHQDSA-N (2r,3r,4r)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@@H](O)[C@H]1O JNYAEWCLZODPBN-KVTDHHQDSA-N 0.000 description 1
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- XFRVVPUIAFSTFO-UHFFFAOYSA-N 1-Tridecanol Chemical compound CCCCCCCCCCCCCO XFRVVPUIAFSTFO-UHFFFAOYSA-N 0.000 description 1
- ZABKDTYOFYRFCI-UHFFFAOYSA-N 1-methoxy-1-oxotetradecane-2-sulfonic acid Chemical compound CCCCCCCCCCCCC(S(O)(=O)=O)C(=O)OC ZABKDTYOFYRFCI-UHFFFAOYSA-N 0.000 description 1
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 1
- DKCPKDPYUFEZCP-UHFFFAOYSA-N 2,6-di-tert-butylphenol Chemical compound CC(C)(C)C1=CC=CC(C(C)(C)C)=C1O DKCPKDPYUFEZCP-UHFFFAOYSA-N 0.000 description 1
- NFAOATPOYUWEHM-UHFFFAOYSA-N 2-(6-methylheptyl)phenol Chemical compound CC(C)CCCCCC1=CC=CC=C1O NFAOATPOYUWEHM-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- TXPKUUXHNFRBPS-UHFFFAOYSA-N 3-(2-carboxyethylamino)propanoic acid Chemical class OC(=O)CCNCCC(O)=O TXPKUUXHNFRBPS-UHFFFAOYSA-N 0.000 description 1
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical class C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 1
- XZIIFPSPUDAGJM-UHFFFAOYSA-N 6-chloro-2-n,2-n-diethylpyrimidine-2,4-diamine Chemical compound CCN(CC)C1=NC(N)=CC(Cl)=N1 XZIIFPSPUDAGJM-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
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- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical compound [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 description 1
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- RNAKXFIYGGIYSN-UHFFFAOYSA-N FC(F)(F)N(C(=O)NC1=CC=CC=C1)C1=CC=CC=C1 Chemical class FC(F)(F)N(C(=O)NC1=CC=CC=C1)C1=CC=CC=C1 RNAKXFIYGGIYSN-UHFFFAOYSA-N 0.000 description 1
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- CEJLBZWIKQJOAT-UHFFFAOYSA-N dichloroisocyanuric acid Chemical compound ClN1C(=O)NC(=O)N(Cl)C1=O CEJLBZWIKQJOAT-UHFFFAOYSA-N 0.000 description 1
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- 238000009472 formulation Methods 0.000 description 1
- 230000002070 germicidal effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 235000013882 gravy Nutrition 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- ACGUYXCXAPNIKK-UHFFFAOYSA-N hexachlorophene Chemical compound OC1=C(Cl)C=C(Cl)C(Cl)=C1CC1=C(O)C(Cl)=CC(Cl)=C1Cl ACGUYXCXAPNIKK-UHFFFAOYSA-N 0.000 description 1
- 229960004068 hexachlorophene Drugs 0.000 description 1
- 150000004687 hexahydrates Chemical class 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000003165 hydrotropic effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 150000002462 imidazolines Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 108010059345 keratinase Proteins 0.000 description 1
- 150000004668 long chain fatty acids Chemical class 0.000 description 1
- 150000002680 magnesium Chemical class 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- MBKDYNNUVRNNRF-UHFFFAOYSA-N medronic acid Chemical compound OP(O)(=O)CP(O)(O)=O MBKDYNNUVRNNRF-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- ONHFWHCMZAJCFB-UHFFFAOYSA-N myristamine oxide Chemical compound CCCCCCCCCCCCCC[N+](C)(C)[O-] ONHFWHCMZAJCFB-UHFFFAOYSA-N 0.000 description 1
- 229940043348 myristyl alcohol Drugs 0.000 description 1
- 229940078490 n,n-dimethylglycine Drugs 0.000 description 1
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical class OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229940055729 papain Drugs 0.000 description 1
- 235000019834 papain Nutrition 0.000 description 1
- 229940111202 pepsin Drugs 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- YBBJKCMMCRQZMA-UHFFFAOYSA-N pyrithione Chemical compound ON1C=CC=CC1=S YBBJKCMMCRQZMA-UHFFFAOYSA-N 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000011347 resin Chemical class 0.000 description 1
- 229920005989 resin Chemical class 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- WKEDVNSFRWHDNR-UHFFFAOYSA-N salicylanilide Chemical class OC1=CC=CC=C1C(=O)NC1=CC=CC=C1 WKEDVNSFRWHDNR-UHFFFAOYSA-N 0.000 description 1
- 108700004121 sarkosyl Proteins 0.000 description 1
- 235000015067 sauces Nutrition 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- KSAVQLQVUXSOCR-UHFFFAOYSA-M sodium lauroyl sarcosinate Chemical compound [Na+].CCCCCCCCCCCC(=O)N(C)CC([O-])=O KSAVQLQVUXSOCR-UHFFFAOYSA-M 0.000 description 1
- 229940045885 sodium lauroyl sarcosinate Drugs 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 229910000031 sodium sesquicarbonate Inorganic materials 0.000 description 1
- 235000018341 sodium sesquicarbonate Nutrition 0.000 description 1
- 235000019794 sodium silicate Nutrition 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- RPACBEVZENYWOL-XFULWGLBSA-M sodium;(2r)-2-[6-(4-chlorophenoxy)hexyl]oxirane-2-carboxylate Chemical compound [Na+].C=1C=C(Cl)C=CC=1OCCCCCC[C@]1(C(=O)[O-])CO1 RPACBEVZENYWOL-XFULWGLBSA-M 0.000 description 1
- DHQIJSYTNIUZRY-UHFFFAOYSA-M sodium;2,3-di(nonyl)naphthalene-1-sulfonate Chemical compound [Na+].C1=CC=C2C(S([O-])(=O)=O)=C(CCCCCCCCC)C(CCCCCCCCC)=CC2=C1 DHQIJSYTNIUZRY-UHFFFAOYSA-M 0.000 description 1
- SIXNTGDWLSRMIC-UHFFFAOYSA-N sodium;toluene Chemical compound [Na].CC1=CC=CC=C1 SIXNTGDWLSRMIC-UHFFFAOYSA-N 0.000 description 1
- 229940035044 sorbitan monolaurate Drugs 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 239000000271 synthetic detergent Substances 0.000 description 1
- 239000003784 tall oil Substances 0.000 description 1
- RYCLIXPGLDDLTM-UHFFFAOYSA-J tetrapotassium;phosphonato phosphate Chemical compound [K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])([O-])=O RYCLIXPGLDDLTM-UHFFFAOYSA-J 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- KVSKGMLNBAPGKH-UHFFFAOYSA-N tribromosalicylanilide Chemical compound OC1=C(Br)C=C(Br)C=C1C(=O)NC1=CC=C(Br)C=C1 KVSKGMLNBAPGKH-UHFFFAOYSA-N 0.000 description 1
- PMBRBOODEWULOI-UHFFFAOYSA-N trichloromethanide Chemical compound Cl[C-](Cl)Cl PMBRBOODEWULOI-UHFFFAOYSA-N 0.000 description 1
- 229940087291 tridecyl alcohol Drugs 0.000 description 1
- KRTNITDCKAVIFI-UHFFFAOYSA-N tridecyl benzenesulfonate Chemical compound CCCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 KRTNITDCKAVIFI-UHFFFAOYSA-N 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical class [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- WCTAGTRAWPDFQO-UHFFFAOYSA-K trisodium;hydrogen carbonate;carbonate Chemical compound [Na+].[Na+].[Na+].OC([O-])=O.[O-]C([O-])=O WCTAGTRAWPDFQO-UHFFFAOYSA-K 0.000 description 1
- 239000012588 trypsin Substances 0.000 description 1
- 229960001322 trypsin Drugs 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- GDJZZWYLFXAGFH-UHFFFAOYSA-M xylenesulfonate group Chemical group C1(C(C=CC=C1)C)(C)S(=O)(=O)[O-] GDJZZWYLFXAGFH-UHFFFAOYSA-M 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/98—Preparation of granular or free-flowing enzyme compositions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/006—Coating of the granules without description of the process or the device by which the granules are obtained
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/30—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic using agents to prevent the granules sticking together; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
-
- 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
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
- C11D3/38672—Granulated or coated enzymes
Definitions
- ABSTRACT Process for producing granular enzyme product which comprise mixing an aqueous slurry of powdered enzyme preparation with hydrated pentasodium tripolyphosphate while agitating.
- This invention relates to a method of making a granular non dusting detergent composition for use in laundry products.
- Powdered enzymes have been employed in presoak and washing detergent compositions since they are particularly effective against various common stains which are fixed to textiles and laundry.
- proteolytic enzymes which possess the ability to digest and degrade protein matter, are effective in removing from textiles and laundry proteinic stains such as blood, sweat, milk, cocoa, gravy and other sauces and the like. The digestion or degradation of proteinmatter facilitates removal of dirt by the detergent.
- Amylases and lipasos are also useful in detergent cleaning.
- One aspect of this invention relates to the production of granules or beads containing the enzyme preparation and pentasodium tripolyphosphate (hereafter termed TPP) by mixing an aqueous slurry of the enzyme preparation with finely divided hydrated TPP.
- TPP pentasodium tripolyphosphate
- the finely divided TPP is added to the aqueous slurry of powdered enzyme preparation while agitating, so that the slurry coats the surfaces of the hydrated TPP, the amount of water present being such as to provide a total water content (including water of hydration introduced with the TPP) of about 35 to 55 parts of water per 100 parts of TPP, calculated as anhydrous TPP.
- This proporation of water is in excess of the amount present in TPP hexahydrate, whose water content is'29.4 parts of water per 100 parts of TPP, calculated as anhydrous TPP.
- the mixture forms granules.
- the caky granules are then dried,- preferably in a fluidized bed in a stream of heated. air, at a relatively low temperature.
- the temperature reached in the bed may be in the range of about 40-60C- preferably about 4555C (e.g. about 50C); the temperature may be measured by simply inserting a thermometer into. the fluidized bed during drying.
- the total water content is reduced to a level of about 20 to 30- parts of water per 100 parts of TPP (calculated as anhydrous TPP).
- the particle size distribution is substantially the same before and after the drying in the fluidized bed.
- the resulting granular product is free-floating, has a low fines content, and shows good enzyme stability; even to.aging at 100 percent relative humidity at 49C. for one week the loss of enzyme activity is, say, about 25 percent.
- the hydrated TPP used as a starting material is itself a granular product of which over 40 percent (by weight), e.g. 50-70 percent, will be retained on 40 mesh sieve, having 0.42 mm openings; all sieve sizes given herein are U.S.Standard. Preferably substantially none of the material is retained on a 10 mesh sieve (whose openings are 2 mm in diameter). Very good results have been attained using a commercial grade of TPP hexahydrate which has a water.
- TPP hexahydrate has a water content of 18.3 percent based on the total weight (while pure TPP hexahydrate has a water content of 22.7 percent, based on total weight); a TPP content (calculated as anhydrous TTP) of 76 percent; a pryophosphate content, as Na P O- of 3.5 percent; an orthophosphate content, as Nag-IP0 of 0.3 percent; and a sodium thrimetaphosphate content, as NaPO of 1.9 percent.
- the whole process can be effected very rapidly, using relatively inexpensive equipment.
- the whole step of mixing the enzyme slurry and the hydrated TPP and forming caky granules therefrom can be effected in less than 5 minutes in a simpleRoss mixer and the material can then be delivered directly to the fluidized bed drier in which the drying can be effected in, say 5-l5 minutes, preferably about 10 minutes.
- the presence of the enzyme preparation appears to inhibit the rate of hydration of TPP; thus when partly hydrated TPP is used. as the starting material little, if any, hydration thereof occurs during mixing or drying.
- the slurry of powdered enzyme preparation can be relatively concentrated, e.g. it may contain 100, 200,
- the hydrated TPP is added gradually the mixture thickens, then forms relatively large (about 2-5 cm in diameter). but very fragile aggregates which become smaller and smaller as the addition of'hydrated TPP with agitation continues. It is preferred to add the hydrated TPP at such a rate that substantially all the TPP becomes mixed in with the slurry (e.g. the hydrated TPP is added gradually, with. agitation, over a period of at least /2 minute, but less than about 5 minutes, preferably about 1 to 2 minutes).
- the process is carried out in such fashion as to produce granules which pass through a 10 mesh sieve (sieve opening 2 mm), more preferably pass through a 20 mesh sieve (sieve opening 0.84 mm) and are retained on an 80 mesh sieve (sieve opening 0.177 mm); the granules within that size range more preferably constitute a major portion (most preferably being at least about 60 percent, e.g. about 60 to 80 percent) of the total weight of the product.
- the enzyme comprises a proteolytic enzYme which is active upon protein matter and catalyzes digestion or degradation of such matter when present as in linen or fabric stain in a hydrolysis reaction.
- the enzymes may be effective at a pH range of say about 4-12, and may be effective even at moderately high temperatures so long as the temperature does not degrade them.
- Some proteolytic enzymes are effective at up to about 80C. and higher. They are also effective at ambient temperature and lower to about 10C.
- proteolytic enzymes which may be used in the instant invention include pepsin, trypsin, chymotrypsin, papain, bromelin, colleginase, keratinase, carboxylase, amino peptidase, elastase, subtilisia and aspergillopepidase A and B.
- Preferred enzymes are substilisin enzymes manufactured and cultivated from special strains of spore forming bacteria, particularly bacillus subtilis.
- Proteolytic enzymes such as Alcalase, Maxatase, Protease AP, Protease ATP 40, Protease ATP 120, Protease L-252 and Protease L-423 are among those enzymes derived from strains and spore foaming bacillus, such as bacillus subtillis.
- proteolytic enzymes have different degrees of effectiveness in aiding in the removal of stains from textiles and linen.
- Particularly preferred as stain removing enzymes are subtilisin enzymes.
- Metalloproteases which contain divalent ions such as calcium, magnesium or zine bound to their protein chains are of interest.
- the enzyme preparations are generally extremely fine, often substantially impalable, powders.
- the particle diameter is mainly below 0.15 mm, generally above 0.01 mm,
- the enzyme preparations are generally extremely diluted with salts such as calcium sulfate and inert materials. Chemically .they are typically stable in the pH range of 5 to and at an alkaline pH of 8.5 to 9. They can withstand temperatures of 49.C. to 77C. with relatively little decomposition for time periods varying from 2 hours at the higher temperatures to more than 1 day at the lower temperatures. Different proteolytic enzymes have different degrees of effectiveness in aiding in the removal of stains from textiles and linen.
- an amylase may be present such as a bacterial amylase of the alpha type (e.g. obtained by fermentation of B. subtilis).
- a bacterial amylase of the alpha type e.g. obtained by fermentation of B. subtilis
- One very suitable enzyme mixture contains both a bacterial amylase of the alpha type and an alkaline protease, preferably in proportions to supply about 100,000 to 400,000 Novo alpha-amylase units per Anson unit of said alkaline protease.
- the enzyme content of the granules or beads can be varied widely, e.g. in the range of 2 50 percent of powdered enzyme preparation.
- the powdered enzyme preparation has an alkaline protease content of 1.5 Anson units per gram, this range of course represents some 3 to Anson units per 100 grams of granules or beads.
- the invention finds its greatest utility, however, for the manufacture of granules or beads which are relatively rich in enzyme content, containing at least 10 percent of the enzyme preparation (corresponding to say at least 15 Anson units per 100 grams of the granules) and preferably at least 15 percent.
- the content of powdered enzyme preparation is much lower, e.g. in the range of about 0.10 to 4.0 percent, preferably about 0.3 to 2.0 percent.
- the amount of the enzyme mixture present in the detergent composition will, of course, depend to some extent on the amount of the detergent composition which is to be added to the wash water.
- one suitable amount of enzyme mixture is such as to provide 1 Anson unit of the alkaline protease for each 100 to 500 (e.g. 200 to 400) grams of the detergent composition.
- the enzyme-containing granules or beads produced in accordance with this invention may be added to a wide variety of washing products. Thus, they may be incorporated in a laundry presoak product or in a laundry detergent or in a dishwashing product.
- a typical presoak product contains a relatively high concentration of builder salt such as about 30 to percent penta-sodium tripolyphosphate (calculated as anhydrous pentasodium tripolyphosphate), about 2 to 10 percent of organic surface active detergent, plus other ingredients such as sodium silicate (which acts as a builder salt and also acts to inhibit corrosion of aluminum surfaces), brightening agents and sodium sulfate.
- a laundry detergent generally has a lower ratio of builder salt to organic surface active agent (e.g.
- Dishwashing products designed for use in automatic dishwashers, are on the other hand usually more alkaline, containing a very high proportion of alkaline builder salt, such as a mixture of the pentasodium tripolyphosphate and sodium silicate; they contain little, if any, organic surface active detergent, e.g. about 0.2 to 3 percent and usually also contains a minor proportion (e.g. 0.5 to 5 percent) of an agent to prevent water-spotting such as a dry watersoluble compound which on contact with water, liberates hypochlorite chlorine (e.g. a heterocyclic dichloroisocyanurate); alternatively, a chlorinated phosphate (such as the well known chlorinated trisodium phosphate) may be used to supply both hypochlorite chlorine and some phosphate.
- alkaline builder salt such as a mixture of the pentasodium tripolyphosphate and sodium silicate
- organic surface active detergent e.g. about 0.2 to 3 percent
- the watersoluble builder salts may be phosphates and particularly condensed phosphates (e.g. pyrophosphates or tripolyphosphates), silicates, borates and carbonates (including bicarbonates), as well as organic builders such as salts of nitrilotriacetic acid or ethylene diamine tetracetic acid.
- phosphates and particularly condensed phosphates e.g. pyrophosphates or tripolyphosphates
- silicates e.g. pyrophosphates or tripolyphosphates
- borates and carbonates including bicarbonates
- organic builders such as salts of nitrilotriacetic acid or ethylene diamine tetracetic acid.
- Sodium and potassium salts are preferred. Specific examples are sodium tripolyphosphate, potassium pyrophosphate, sodium hexametaphosphate, sodium carbonate, sodium bicarbonate, sodium sesquicarbonate, sodium tetraborate, sodium silicate, salt
- Na salt of methylene diphosphonic acid, disodium diglycollate, trisodium nitrilotriacetate, or mixtures of such builders, including mixtures of pentasodium tripolyphosphate and trisodium nitrilotriacetate in a ratio, of these two builders, of 1:10 to :1, e.g. 1:1.
- the organic surface active agent may be an anionic, nonionic or amphoteric surface active agent; mixtures of two or more such agents may be used.
- the anionic surface active agents include these surface active or detergent compounds which contain an organic hydrophobic group and an anionic solubilizing group.
- anionic solubilizing groups are sulfonate, sulfate, carboxylate, phosphonate and phosphate.
- suitable anionic detergents which fall within the scope of the invention include the soaps, such as the water-soluble salts of higher fatty acids or resin acids, such as may be derived from fats, oils and waxes of animal, vegetable origin, e.g. the sodium soaps of tallow, grease, coconut oil, tall oil and mixtures thereof; and the sulfated and sulfonated synthetic detergents, particularly those having about 8 to 26, and preferably about 12 to 22, carbon atoms to the molecule.
- suitable synthetic anionic detergents there may be cited the higher alkyl mononuclear aromatic sulfonates such as the higher alkyl benzene sulfonates containing from 10 to 16 carbon atoms in the alkyl group in a straight or branched chain, e.g.', the sodium salts of higher alkyl benzene sulfonates or of the higher alkyl toluene, xylene and phenol sulfonates; alkyl naphthalene sulfonate, ammonium diamyl naphthalene sulfonate, and sodium dinonyl naphthalene sulfonate.
- the higher alkyl mononuclear aromatic sulfonates such as the higher alkyl benzene sulfonates containing from 10 to 16 carbon atoms in the alkyl group in a straight or branched chain, e.g.', the sodium salts of higher
- composition there is used a linear alkyl benzene sulfonate having a high content of 3- (or higher) phenyl isomers and a correspondingly low content (well below 50 percent) of 2- (or lower) phenyl isomers; in other terminology, the benzene ring is preferably attached in large part at the 3 or higher (e.g. 4, 5, 6 or 7) position of the alkyl group and the content of isomers in which the benzene ring is attached at the 2 or 1 position is correspondingly low.
- Particularly preferred materials are set forth in U.S. Pat. No. 3,320,174, May 16, 1967, of J. Rubinfeld.
- anionic detergents are the olefin sulfonates, including long chain alkene sulfonates, long chain hydroxyalkane sulfonates or mixtures of alkenesulfonates and hydroxylalkane-sulfonates.
- paraffin sulfonates having, for example, about 10-20, preferably about 15-20, carbon atoms
- the primary paraffin sulfonates made by reacting long chain alpha olefins and bisulfites (e.g. sodium bisulfite) or paraffin sulfonates having two sulfonate groups distributed along the paraffin chain such as the products made by reacting a long chain paraffin with sulfur dioxide and oxygen under ultraviolet light followed by neutralization with NaOH or other suitable base (as in U.S. Pat. Nos.
- sulfates of higher alcohols are sodium lauryl sulfate, sodium tallow alcohol sulfate, Turkey Red Oil or other sulfated oils, or sulfates of monoor di-glycerides of fatty acids (e.g.
- alkyl poly (ethenoxy) other sulfates such as the sulfates of the condensation products of ethylene oxide and lauryl alcohol (usually having 1 to 5 ethenoxy groups per molecule); lauryl or other higher alkyl glyceryl ether sulfonates; aromatic poly (ethenoxy) other sulfates such as the sulfates of the condensation products of ethylene oxide and nonyl phenol (usually having 1 to 6 oxethylene groups per molecule).
- the suitable anionic detergents include also the acyl sarcosinates (e.g. sodium lauroylsarcosinate) the acyl esters (e.g. oleic acid ester) of isothionates, and the acyl N-methyl taurides (e.g. potassium N-methyl lauroylor oleyl tauridge).
- acyl sarcosinates e.g. sodium lauroylsarcosinate
- the acyl esters e.g. oleic acid ester
- acyl N-methyl taurides e.g. potassium N-methyl lauroylor oleyl tauridge
- the most highly preferred water soluble anionic detergent compounds are the ammonium and substituted ammonium (such as mono-, diand triethanolamine), alkali metal (such as sodium and potassium) and alkaline earth metal (such as calcium and magnesium) salts of the higher alkyl benzene sulfonates, olefin sufonates, the higher alkyl sulfates, and the higher fatty acid monoglyceride sulfates.
- the particulsr salt will be suitably selected depending upon the particular formulation and the proportions therein.
- Nonionic surface active agents include those surfaces active or detergent compounds which contain an organic hydrophobic group and a hydrophilic group which is a reaction product of a solubilizing group such as carboxylate, hydroxyl, amido or amino with ethylene oxide or with the polyhydration product thereof, polyethylene glycol.
- nonionic surface active agents which may be used there may be noted the condensation products of alkyl phenols with ethylene oxide, e.g., the reaction product of isooctyl phenol with about 6 to 30 ethylene oxide units; condensation products of alkyl thiophenols with 10 to 15 ethylene oxide units; condensation products of higher fatty alcohols such as tridecyl alcohol with ethylene oxide; ethylene oxide addends of monoesters of hexahydric alcohols and inner ethers thereof such as sorbitan monolaurate, sorbitol monooleate and manitan monopalmitate, and the condensation products mannitan polypropylene glycol with ethylene oxide.
- a particularly suitable composition, for use as a granular detergent material contains a mixture of a linear alkylbenzenesulfonate, as previously described, soap and a non-ionic detergent, with the soap and nonionic detergent being present in minor portions.
- the ratios of the amounts of (A) soap, and (B) nonionic detergent, to (C) the total amount of the synthetic anionic sulfate and sulfonate detergent, in this mixture are preferably as follows: AzC, about 1:10 to 1:2, preferably about 1:4 to 1:6, on an anhydrous basis; B:C about 1:10 to 1:3, e.g. about 1:4 to 1:6, on an anhydrous basis.
- the component (C) may comprise a blend of the linear alkylbenzenesulfonate detergent with other anionic synthetic sulfate or sulfonate detergents (e.g. olefin sulfonates, paraffin sulfonates having the sulfonate groups distributed along the paraffin chain, or alkyl sulfonates) with the alkylbenzenesulfonate consisting, say, '75, k or 36 of this blend.
- anionic synthetic sulfate or sulfonate detergents e.g. olefin sulfonates, paraffin sulfonates having the sulfonate groups distributed along the paraffin chain, or alkyl sulfonates
- amphoteric detergents are those containing both an anionic and a cationic group and a hydrophobic organic group, which is advantageously a higher aliphatic radical, e.g. of -20 carbon atoms.
- suitable amphoteric detergents are those containing both an anionic and a cationic group and a hydrophobic organic group, which is advantageously a higher aliphatic radical, e.g. of -20 carbon atoms.
- N-long chain alkyl aminocarboxylic acids e.g. of the formula the N-long chain alkyl iminodicarboxylic acids (e.g. of the formula RN(RCOOM)
- the N-long chain alkyl betains e.g. of the formula where R is a long chain alkyl group, e.g. of about 10-20 carbons, R is a divalent radical joining the amino and carboxyl portions of an amino acid (e.g.
- N is hydrogen or a salt-forming metal
- R is a hydrogen or another monovalent substituent (e.g. methyl or other lower alkyl)
- R and R are monovalent substituents joined to the nitrogen by carbon-to-nitrogen bonds (e.g. methyl or other lower alkyl substituents).
- amphoteric detergents are N-alkyl-betaaminopropionic acid, N-a1ky1-beta-iminodipropionic acid, and N-alkyl, N,N-dimethyl glycine;
- the alkyl group may be, for example, that derived from coco fatty alcohol, lauryl alcohol, myristyl alcohol (or a lauryl-myristyl mixture), hydrogenated tallow alcohol, cetyl, stearyl, or blends of such alcohols.
- the substituted aminopropionic and iminodipropionic acids are often supplied in the sodium or other salt forms, which may likewise be used in the practice of this invention.
- amphoteric detergents examples include the fatty imidazolines such as those made by reacting a long chain fatty acid (e.g. of 10 to carbon atoms) with diethyl ene triamine and monohalocarboxylic acids having 2 to 6 carbon atoms, e.g. l-coco-5-hydroxethyl-5-carboxymethylimidazoline; betaines containing a sulfonic group instead of the carboxylic groups; betaines in which the long chain substituent is joined to the carboxylic group without an intervening nitrogen atom, e.g. inner salts of 2-trimethylamino fatty acids such as 2-trimethylaminolauric acid, and compounds of any of the previously mentioned types but in which the nitrogen atoms is replaced by phosphorous.
- a long chain fatty acid e.g. of 10 to carbon atoms
- diethyl ene triamine and monohalocarboxylic acids having 2 to 6 carbon atoms e.
- materials such as the higher fatty acid amides maybe added to improve detergency and modify the foaming properties in a desirable manner.
- materials such as the higher fatty acid alkanolamides, preferably having 2-3 carbons in each alkanol group and a fatty acyl radical within the range of 10-18 carbons, preferably 10-14 carbons, such as lauric or myristic monothanolamides, diethanolamides and isopropanol-amides.
- Tertiary higher alkyl amino oxides such as having about l0-18 carbons in one alkyl group, e.g. lauryl of myristyl dimethylamine oxide, may be added also.
- Fatty alcohols of 10-18 carbons such as lauryl or coconut fatty alcohols, or cetyl alcohol are suitable additives also.
- a hydrotropic material such as the lower alkyl aryl sulfonates, e.g. sodium toluene or xylene sulfonates, can assist processing also. In general, these materials are added in minor amounts, usually from about k to 10 percent, preferably 1 to 6 percent, based on the total solids.
- the mixtures may also contain optical brightening agents or fluorescent dyes (e.g. in amounts in the range of about 1/20 to k percent); germicidal ingredients such as halogenated carbanilides, e.g. trichlorocarbanide, halogenated salicylanilide, e.g. tribromosalicylanilide, halogenated bisphenols, e.g. hexachlorophene, halogenated trifluoromethyldiphenyl urea, zinc salt of 1-hydroxy-2-pyridinethione and the like (e.g.
- soil-suspending suspending agents such as sodium carboxymethyl cellulose or polyvinyl alcohol, preferably both, or other soluble polymeric materials, such as methyl cellulose (the amount of suspending agent being, for example, in the range of about 1/20 to 2 percent); antioxidants such as 2,6-di-tertbutylphenol, or other phenolic antioxidant materials (e.g. in amounts in the range of about 0.001 to 0.1 percent), coloring agents, bleaching agents and other additives.
- EXAMPLE 1 A thin mud-like slurry is prepared in Standard Ross Mixer (of the double planetary type) by mixing at room temperature 24.0 parts of powdered proteolytic subtilisin enzyme preparation (Alcalase, 1.5 Anson Units/g) and 10.8 parts water. Then 65.2 parts of a commercial granular pentasodium tripolyphosphate hexahydrate are added granually, at the rate of about 45 parts per minute; the mixing is continued for about 3 minutes after addition of the pentasodium tripolyphosphate hexahydrate has concluded.
- the total weight of the batch is about 90.9 Kg (200 lbs.)
- the volume of the mixing vessel is about 40 gallons
- the speed of rotation of the double blade about the axis of the vessel is about 26 RPM.
- the pentasodium tripolyphosphate hexahydrate used in this Example has the following screen analyses:
- the results of another analysis of another portion of the same material are: +10 mesh, 0 percent; +20, 1.5 percent; +30, 26 percent; +60, 83.9 percent, -100 mesh, 2.4 percent.
- This TPP hexahydrate has a total water content of 18.3 percent, a free water content of 0.55 percent, of pH of 9.87, a bulky density of 0.705 g/cc and a P content averaging 47.16 percent.
- the caky granules resulting from the mixing process are fed to a fluidized bed drier where they are fluidized by a stream of heated air and subjected to the drying action of the air for a period of minutes at a bed temperature rising to 50C.
- the product is a granular material containing the enzyme distributed thoroughly therein, showing very little if any tendency to dust and showing very good resistance to loss of enzyme activity on aging. Its screen analysis (after removal of a very small portion of material retained on a 10 mesh sieve) is as follows:
- the proteolytic subtilisin enzyme preparation used in the foregoing Example has its minimum proteolytic activity at a pH of 8 9. This activity as measured at pH 7.5 on the commercial enzyme preparation available from Novo Industri A/S, Copenhagen, Denmark is about 1.5 Anson Units per gram of the enzyme.
- the commercial enzyme preparation is a raw extract of bacillus subtillis culture and contains about 6 percent of pure crystallized proteolytic material.
- the preparation is an extremely fine powder; typically the particle diameter is mainly below 0.15 mm, generally above 0.01
- the preparation contains about 70 percent NaCl and about -18 percent Na SO Its organic content is in the neighborhood of 11 percent.
- Example 1 is repeated except that one starts with an enzyme preparation which is richer in the enzyme.
- enzyme preparation having an enzyme content of 4.0 Anson units per gram, 14.0 parts of water and 77 parts of the TPP hexahydrate.
- EXAMPLE 3 The products of each of the foregoing Examples are dry blended with spray dried hollow beads ofa mixture of pentasodium tirpolyphosphate, an organic detergent (sodium linear tridecylbenzenesulfonate), sodium silicate (Na- O:SiO ratio 1.012.35), optical brighteners, and sodium sulfate to give, in each case, a composition having the following approximate analysis: total anhydrous phosphate solids 70 percent, organic detergent 6.75 percent, sodium silicate 5.1 percent, brighteners 018 Percent, 1 Qrwr (P or minu 12mm). the enzyme preparation 0.76 percent, and the balance being sodium sulfate.
- the resulting granular solid mixture is a highly effective presoak product, which is mixed with water (e.g. to form a 0.19 percent solution of the whole solid mixture) and used for soaking soiled and stained cotton garments or other fabric material (e.g. for l to 24 hours) prior to washing said fabric materials.
- FIGS. 1, 2 and 3 are made with a conventional scanning electron microscope (in which the specimen is scanned with an electron beam, the electrons reflected from the surface of the specimen are collected and used, through intermediate light signals, to modulate the scanning beam of a cathode ray tube to give a picture like that seen on a television screen); the specimens are pre-coated with a very thin layer of conductive material (e.g. a 50A. thick layer of gold, applied in a vacuum) as is conventional in the use of the instrument, to give a clearer picture.
- the scanning electron microscope has a much greater depth of field than an ordinary light microscope.
- FIG. 1 shows two granules of the hydrated TPP (commercial porous TPP hexahydrate as used in the foregoing Examples).
- the wormy elements near the bottom of each granule are merely the adhesive used to attach the granules to the base on which they rest in the instrument.
- FIG. 2 shows a granule of the product of Example I. It can be seen that the granule includes attached smaller particles agglomerated therewith.
- FIG. 3 is a view showing several granules of the product of Example 1.
- FIG. 4 is a view of the granules of the product of Example l, taken with a light microscope using transmitted light, with the specimen immersed in oil (a conventional microscope technique).
- the transparent crystals are believed to be sodium chloride crystals from the enzyme preparation; some of these have apparently been formed by solution in the aqueous medium of the slurry followed by recrystallization.
- Process for producing a granular enzymecontaining product which comprises adding porous granules of hydrated pentasodium tripolyphosphate, whose water content is at least about percent of that of pure pentasodium tripolyphosphate hexahydrate and whose particle size distribution is such that over 40 percent is retained on a 40 mesh sieve and substantially none is retained on a 10 mesh sieve, gradually to an aqueous slurry of protease enzyme fine powder while agitating, substantially all said tripolyphosphate being added to said slurry over a period of at least one half minute but less than five minutes, said slurry containing about 200 to 400 parts of the enzyme powder per parts of water, the amount of water in the slurry being such as to provide in said mixture a total water content (including water of hydration present in said tripolyphosphate) of about 35 to 55 parts of water per 100 parts of pentasodium tripolyphosphate, calculated as anhydrous pentasodium tripolyphosphate, whereby
Abstract
Process for producing granular enzyme product which comprise mixing an aqueous slurry of powdered enzyme preparation with hydrated pentasodium tripolyphosphate while agitating.
Description
United States Patent [1 1 Hussain Nov. 20, 1973 [54] PRODUCTION OF GRANULAR MIXTURES [7 5] Inventor: Ali Ghalib Mohammed Hussain,
, Elizabeth, NJ. i
[73] Assignee: Colgate-Palmolive Company, New
York, NY.
22 Filed: Sept. 8, 1971 21 Appl.No.: 178,800
Related U.S. Application Data [63] Continuation of Ser. No. 828,938, May 29, 1969,-
abandoned.
[52] U.S. Cl. 252/89, 195/63, 252/135, 252/DIG. 12 [51] Int. Cl Clld 7/42 [58] Field of Search 252/89, 135, 137;
[56] References Cited UNITED STATES PATENTS 3,451,935 6/1969 Roald 3,519,570 7/1970 McCarty 252/89 FOREIGN PATENTS OR APPLICATIONS 16,501 3/l959 Germany 252/89 Primary ExaminerWilliam E. Schulz Attorney l-lerbert S. Sylvester et al.
[57] ABSTRACT Process for producing granular enzyme product which comprise mixing an aqueous slurry of powdered enzyme preparation with hydrated pentasodium tripolyphosphate while agitating.
3 Claims, 4 Drawing Figures Imm L PRODUCTION OF GRANULAR MIXTURES This is a continuation of application Ser. No. 828,938 filed May 29, 1969 now. abandoned.
This invention relates to a method of making a granular non dusting detergent composition for use in laundry products.
Powdered enzymes have been employed in presoak and washing detergent compositions since they are particularly effective against various common stains which are fixed to textiles and laundry. In particular; proteolytic enzymes, which possess the ability to digest and degrade protein matter, are effective in removing from textiles and laundry proteinic stains such as blood, sweat, milk, cocoa, gravy and other sauces and the like. The digestion or degradation of proteinmatter facilitates removal of dirt by the detergent. Amylases and lipasos are also useful in detergent cleaning.
However, the use of powdered enzymes in such compositions has resulted in certain problems including the presence of an excessive amount of dust. Some individuals experience allergic reactions to the enzyme dust. Furthermore, detergent compositions containing enzymes have been subject to discoloration, formation of undesirable odor and caking.
It has been suggested to bind variouscompounds which are common builder salts in their hydratable form with enzymes. This may be done by contacting enzyme with an anhydrous or partially hydrated salt and adding water in insufficient amount to fully hydrate the salt. A considerable amount of enzyme dust is still present when the enzyme-hydratable salt composition is used. Discoloration and odor formation may also occur.
One aspect of this invention relates to the production of granules or beads containing the enzyme preparation and pentasodium tripolyphosphate (hereafter termed TPP) by mixing an aqueous slurry of the enzyme preparation with finely divided hydrated TPP. The invention provides a rapid convenient and economical method for producing a granular enzyme product which has good stability. It makes it possible to produce a product in which any dust is much lower in enzyme content than the product itself.
In one embodiment of the process the finely divided TPP is added to the aqueous slurry of powdered enzyme preparation while agitating, so that the slurry coats the surfaces of the hydrated TPP, the amount of water present being such as to provide a total water content (including water of hydration introduced with the TPP) of about 35 to 55 parts of water per 100 parts of TPP, calculated as anhydrous TPP. This proporation of water is in excess of the amount present in TPP hexahydrate, whose water content is'29.4 parts of water per 100 parts of TPP, calculated as anhydrous TPP. During mixing it is found that the mixture forms granules. This may be caused, I believe, by the acceleration of fine particles of the hydrated TPP to larger particles thereof or to agglomerates (of fine particles) produced in earlier stages of mixing. These granules, while more orless dry to the touch, are caky"; that is, the granules can be squeezed together in the hand to form a coherent mass or cake. in contrast, when hydrated sodium sulfate is substituted for the hydrated TPP a mushy mudlike mixture is obtained.
The formation of a slurry and the addition of the'TPP thereto, instead of spraying the slurry onto the granular TPP has many advantages. lt makes it possible to use smallerequipment, less expensive equipment, less manpower and less mechanical power.
The caky granules are then dried,- preferably in a fluidized bed in a stream of heated. air, at a relatively low temperature. Thus, the temperature reached in the bed may be in the range of about 40-60C- preferably about 4555C (e.g. about 50C); the temperature may be measured by simply inserting a thermometer into. the fluidized bed during drying. During drying the total water content is reduced to a level of about 20 to 30- parts of water per 100 parts of TPP (calculated as anhydrous TPP). The particle size distribution is substantially the same before and after the drying in the fluidized bed.
The resulting granular product is free-floating, has a low fines content, and shows good enzyme stability; even to.aging at 100 percent relative humidity at 49C. for one week the loss of enzyme activity is, say, about 25 percent.
In a preferred embodiment of the invention the hydrated TPP used as a starting material is itself a granular product of which over 40 percent (by weight), e.g. 50-70 percent, will be retained on 40 mesh sieve, having 0.42 mm openings; all sieve sizes given herein are U.S.Standard. Preferably substantially none of the material is retained on a 10 mesh sieve (whose openings are 2 mm in diameter). Very good results have been attained using a commercial grade of TPP hexahydrate which has a water. content of about -85 percent of that theoretically present in the hexahydrate; thus one commercial TPP hexahydrate has a water content of 18.3 percent based on the total weight (while pure TPP hexahydrate has a water content of 22.7 percent, based on total weight); a TPP content (calculated as anhydrous TTP) of 76 percent; a pryophosphate content, as Na P O- of 3.5 percent; an orthophosphate content, as Nag-IP0 of 0.3 percent; and a sodium thrimetaphosphate content, as NaPO of 1.9 percent.
The whole process can be effected very rapidly, using relatively inexpensive equipment. Thus the whole step of mixing the enzyme slurry and the hydrated TPP and forming caky granules therefrom can be effected in less than 5 minutes in a simpleRoss mixer and the material can then be delivered directly to the fluidized bed drier in which the drying can be effected in, say 5-l5 minutes, preferably about 10 minutes. I have found that the presence of the enzyme preparation appears to inhibit the rate of hydration of TPP; thus when partly hydrated TPP is used. as the starting material little, if any, hydration thereof occurs during mixing or drying.
The slurry of powdered enzyme preparation can be relatively concentrated, e.g. it may contain 100, 200,
300 or 400 parts of powdered enzyme preparation per parts of water. Especially good results have been obtained with slurries containing about 200 to 300 parts of powdered enzyme preparation per 100 parts of water. Typically the slurry is a mud-like mixture. When the hydrated TPP is added gradually the mixture thickens, then forms relatively large (about 2-5 cm in diameter). but very fragile aggregates which become smaller and smaller as the addition of'hydrated TPP with agitation continues. it is preferred to add the hydrated TPP at such a rate that substantially all the TPP becomes mixed in with the slurry (e.g. the hydrated TPP is added gradually, with. agitation, over a period of at least /2 minute, but less than about 5 minutes, preferably about 1 to 2 minutes).
Particularly good results are obtained using a well known Ross mixer which is of the double planetary type having a pair of mixing blades which rotate in overlapping circular paths about their parallel vertical axes while the axes themselves move in a circular path about the vertical axis of the mixing vessel and close to its cylindrical wall. Also useful are the well known Hobart mixer (which is of a single planetary type) or a ribbon mixer (e.g. a conventional Day mixer).
Preferably the process is carried out in such fashion as to produce granules which pass through a 10 mesh sieve (sieve opening 2 mm), more preferably pass through a 20 mesh sieve (sieve opening 0.84 mm) and are retained on an 80 mesh sieve (sieve opening 0.177 mm); the granules within that size range more preferably constitute a major portion (most preferably being at least about 60 percent, e.g. about 60 to 80 percent) of the total weight of the product.
In the preferred form of the invention the enzyme comprises a proteolytic enzYme which is active upon protein matter and catalyzes digestion or degradation of such matter when present as in linen or fabric stain in a hydrolysis reaction. The enzymes may be effective at a pH range of say about 4-12, and may be effective even at moderately high temperatures so long as the temperature does not degrade them. Some proteolytic enzymes are effective at up to about 80C. and higher. They are also effective at ambient temperature and lower to about 10C. Particular examples of proteolytic enzymes which may be used in the instant invention include pepsin, trypsin, chymotrypsin, papain, bromelin, colleginase, keratinase, carboxylase, amino peptidase, elastase, subtilisia and aspergillopepidase A and B. Preferred enzymes are substilisin enzymes manufactured and cultivated from special strains of spore forming bacteria, particularly bacillus subtilis.
Proteolytic enzymes such as Alcalase, Maxatase, Protease AP, Protease ATP 40, Protease ATP 120, Protease L-252 and Protease L-423 are among those enzymes derived from strains and spore foaming bacillus, such as bacillus subtillis.
Different proteolytic enzymes have different degrees of effectiveness in aiding in the removal of stains from textiles and linen. Particularly preferred as stain removing enzymes are subtilisin enzymes.
Metalloproteases which contain divalent ions such as calcium, magnesium or zine bound to their protein chains are of interest.
The enzyme preparations are generally extremely fine, often substantially impalable, powders. In a typical powdered enzyme preparation the particle diameter is mainly below 0.15 mm, generally above 0.01 mm,
I e.g. about 0.1 mm; for example, as much as 75 percent of the material may pass through a 100 mesh (U.S. Standard) sieve. In contrast, conventional spray dried granules of detergent compositionsare usually of very much larger particle size, with the major portion of the granules being at least about 0.2 mm in diameter, e.g.
about 0.3 or 0.4, or even 05, 1 or 2 mm.
The enzyme preparations are generally extremely diluted with salts such as calcium sulfate and inert materials. Chemically .they are typically stable in the pH range of 5 to and at an alkaline pH of 8.5 to 9. They can withstand temperatures of 49.C. to 77C. with relatively little decomposition for time periods varying from 2 hours at the higher temperatures to more than 1 day at the lower temperatures. Different proteolytic enzymes have different degrees of effectiveness in aiding in the removal of stains from textiles and linen.
Instead of, or in additionto, the proteolytic enzyme, an amylase may be present such as a bacterial amylase of the alpha type (e.g. obtained by fermentation of B. subtilis). One very suitable enzyme mixture contains both a bacterial amylase of the alpha type and an alkaline protease, preferably in proportions to supply about 100,000 to 400,000 Novo alpha-amylase units per Anson unit of said alkaline protease.
The enzyme content of the granules or beads can be varied widely, e.g. in the range of 2 50 percent of powdered enzyme preparation. When the powdered enzyme preparation has an alkaline protease content of 1.5 Anson units per gram, this range of course represents some 3 to Anson units per 100 grams of granules or beads. The invention finds its greatest utility, however, for the manufacture of granules or beads which are relatively rich in enzyme content, containing at least 10 percent of the enzyme preparation (corresponding to say at least 15 Anson units per 100 grams of the granules) and preferably at least 15 percent. In the final washing product, made for example by blending the enzyme containing granules or beads with other granular material (such as spray-dried hollow beads or spongeous low density granules), the content of powdered enzyme preparation is much lower, e.g. in the range of about 0.10 to 4.0 percent, preferably about 0.3 to 2.0 percent.
The amount of the enzyme mixture present in the detergent composition will, of course, depend to some extent on the amount of the detergent composition which is to be added to the wash water. For detergent compositions which are intended for use at concentrations of, say, about 0.15 percent in the wash water of an automatic home laundry machine, one suitable amount of enzyme mixture is such as to provide 1 Anson unit of the alkaline protease for each 100 to 500 (e.g. 200 to 400) grams of the detergent composition.
The enzyme-containing granules or beads produced in accordance with this invention may be added to a wide variety of washing products. Thus, they may be incorporated in a laundry presoak product or in a laundry detergent or in a dishwashing product. A typical presoak product contains a relatively high concentration of builder salt such as about 30 to percent penta-sodium tripolyphosphate (calculated as anhydrous pentasodium tripolyphosphate), about 2 to 10 percent of organic surface active detergent, plus other ingredients such as sodium silicate (which acts as a builder salt and also acts to inhibit corrosion of aluminum surfaces), brightening agents and sodium sulfate. A laundry detergent generally has a lower ratio of builder salt to organic surface active agent (e.g. a ratio in the range of about 5:1 to 15:1). Dishwashing products, designed for use in automatic dishwashers, are on the other hand usually more alkaline, containing a very high proportion of alkaline builder salt, such as a mixture of the pentasodium tripolyphosphate and sodium silicate; they contain little, if any, organic surface active detergent, e.g. about 0.2 to 3 percent and usually also contains a minor proportion (e.g. 0.5 to 5 percent) of an agent to prevent water-spotting such as a dry watersoluble compound which on contact with water, liberates hypochlorite chlorine (e.g. a heterocyclic dichloroisocyanurate); alternatively, a chlorinated phosphate (such as the well known chlorinated trisodium phosphate) may be used to supply both hypochlorite chlorine and some phosphate.
ln formulating the washing products, the watersoluble builder salts may be phosphates and particularly condensed phosphates (e.g. pyrophosphates or tripolyphosphates), silicates, borates and carbonates (including bicarbonates), as well as organic builders such as salts of nitrilotriacetic acid or ethylene diamine tetracetic acid. Sodium and potassium salts are preferred. Specific examples are sodium tripolyphosphate, potassium pyrophosphate, sodium hexametaphosphate, sodium carbonate, sodium bicarbonate, sodium sesquicarbonate, sodium tetraborate, sodium silicate, salts (e.g. Na salt) of methylene diphosphonic acid, disodium diglycollate, trisodium nitrilotriacetate, or mixtures of such builders, including mixtures of pentasodium tripolyphosphate and trisodium nitrilotriacetate in a ratio, of these two builders, of 1:10 to :1, e.g. 1:1.
The organic surface active agent may be an anionic, nonionic or amphoteric surface active agent; mixtures of two or more such agents may be used.
The anionic surface active agents include these surface active or detergent compounds which contain an organic hydrophobic group and an anionic solubilizing group. Typical examples of anionic solubilizing groups are sulfonate, sulfate, carboxylate, phosphonate and phosphate. Examples of suitable anionic detergents which fall within the scope of the invention include the soaps, such as the water-soluble salts of higher fatty acids or resin acids, such as may be derived from fats, oils and waxes of animal, vegetable origin, e.g. the sodium soaps of tallow, grease, coconut oil, tall oil and mixtures thereof; and the sulfated and sulfonated synthetic detergents, particularly those having about 8 to 26, and preferably about 12 to 22, carbon atoms to the molecule.
As examples of suitable synthetic anionic detergents there may be cited the higher alkyl mononuclear aromatic sulfonates such as the higher alkyl benzene sulfonates containing from 10 to 16 carbon atoms in the alkyl group in a straight or branched chain, e.g.', the sodium salts of higher alkyl benzene sulfonates or of the higher alkyl toluene, xylene and phenol sulfonates; alkyl naphthalene sulfonate, ammonium diamyl naphthalene sulfonate, and sodium dinonyl naphthalene sulfonate. In one preferred type of composition there is used a linear alkyl benzene sulfonate having a high content of 3- (or higher) phenyl isomers and a correspondingly low content (well below 50 percent) of 2- (or lower) phenyl isomers; in other terminology, the benzene ring is preferably attached in large part at the 3 or higher (e.g. 4, 5, 6 or 7) position of the alkyl group and the content of isomers in which the benzene ring is attached at the 2 or 1 position is correspondingly low. Particularly preferred materials are set forth in U.S. Pat. No. 3,320,174, May 16, 1967, of J. Rubinfeld.
Other anionic detergents are the olefin sulfonates, including long chain alkene sulfonates, long chain hydroxyalkane sulfonates or mixtures of alkenesulfonates and hydroxylalkane-sulfonates. These olefin sulfonate detergents may be prepared, in known manner, by the reaction of S0 with long chain olefins (of 8-25, preferably 12-21 carbon atoms) of the formula RCH=CHR,, where R is alkyl and R, is alkyl or hydrogen, to produce a mixture of sultones and alkenesulfonic acids, which mixture is then treated to convert the sultones to sulfonates. Examples of other sulfate or sulfonate detergents are paraffin sulfonates having, for example, about 10-20, preferably about 15-20, carbon atoms such as the primary paraffin sulfonates made by reacting long chain alpha olefins and bisulfites (e.g. sodium bisulfite) or paraffin sulfonates having two sulfonate groups distributed along the paraffin chain such as the products made by reacting a long chain paraffin with sulfur dioxide and oxygen under ultraviolet light followed by neutralization with NaOH or other suitable base (as in U.S. Pat. Nos. 2,503,280; 2,507,088; 3,260,741; 3,372,188 and German patent 735,096); sulfates of higher alcohols; salts of a-sulfofatty esters (e.g. of about 10 to 20 carbon atoms, such as methyl a-sulfomyristate or a-sulfotallowate).
Examples of sulfates of higher alcohols are sodium lauryl sulfate, sodium tallow alcohol sulfate, Turkey Red Oil or other sulfated oils, or sulfates of monoor di-glycerides of fatty acids (e.g. stearic monoglyceride monosulfate), alkyl poly (ethenoxy) other sulfates such as the sulfates of the condensation products of ethylene oxide and lauryl alcohol (usually having 1 to 5 ethenoxy groups per molecule); lauryl or other higher alkyl glyceryl ether sulfonates; aromatic poly (ethenoxy) other sulfates such as the sulfates of the condensation products of ethylene oxide and nonyl phenol (usually having 1 to 6 oxethylene groups per molecule).
The suitable anionic detergents include also the acyl sarcosinates (e.g. sodium lauroylsarcosinate) the acyl esters (e.g. oleic acid ester) of isothionates, and the acyl N-methyl taurides (e.g. potassium N-methyl lauroylor oleyl tauridge).
The most highly preferred water soluble anionic detergent compounds are the ammonium and substituted ammonium (such as mono-, diand triethanolamine), alkali metal (such as sodium and potassium) and alkaline earth metal (such as calcium and magnesium) salts of the higher alkyl benzene sulfonates, olefin sufonates, the higher alkyl sulfates, and the higher fatty acid monoglyceride sulfates. The particulsr salt will be suitably selected depending upon the particular formulation and the proportions therein.
Nonionic surface active agents include those surfaces active or detergent compounds which contain an organic hydrophobic group and a hydrophilic group which is a reaction product of a solubilizing group such as carboxylate, hydroxyl, amido or amino with ethylene oxide or with the polyhydration product thereof, polyethylene glycol.
As examples of nonionic surface active agents which may be used there may be noted the condensation products of alkyl phenols with ethylene oxide, e.g., the reaction product of isooctyl phenol with about 6 to 30 ethylene oxide units; condensation products of alkyl thiophenols with 10 to 15 ethylene oxide units; condensation products of higher fatty alcohols such as tridecyl alcohol with ethylene oxide; ethylene oxide addends of monoesters of hexahydric alcohols and inner ethers thereof such as sorbitan monolaurate, sorbitol monooleate and manitan monopalmitate, and the condensation products mannitan polypropylene glycol with ethylene oxide.
A particularly suitable composition, for use as a granular detergent material contains a mixture of a linear alkylbenzenesulfonate, as previously described, soap and a non-ionic detergent, with the soap and nonionic detergent being present in minor portions. The ratios of the amounts of (A) soap, and (B) nonionic detergent, to (C) the total amount of the synthetic anionic sulfate and sulfonate detergent, in this mixture, are preferably as follows: AzC, about 1:10 to 1:2, preferably about 1:4 to 1:6, on an anhydrous basis; B:C about 1:10 to 1:3, e.g. about 1:4 to 1:6, on an anhydrous basis. The component (C) may comprise a blend of the linear alkylbenzenesulfonate detergent with other anionic synthetic sulfate or sulfonate detergents (e.g. olefin sulfonates, paraffin sulfonates having the sulfonate groups distributed along the paraffin chain, or alkyl sulfonates) with the alkylbenzenesulfonate consisting, say, '75, k or 36 of this blend.
Examples of suitable amphoteric detergents are those containing both an anionic and a cationic group and a hydrophobic organic group, which is advantageously a higher aliphatic radical, e.g. of -20 carbon atoms. Among these are the N-long chain alkyl aminocarboxylic acids (e.g. of the formula the N-long chain alkyl iminodicarboxylic acids (e.g. of the formula RN(RCOOM) and the N-long chain alkyl betains (e.g. of the formula where R is a long chain alkyl group, e.g. of about 10-20 carbons, R is a divalent radical joining the amino and carboxyl portions of an amino acid (e.g. an alkylene radical of 1-4 carbon atoms), N is hydrogen or a salt-forming metal, R is a hydrogen or another monovalent substituent (e.g. methyl or other lower alkyl), and R and R are monovalent substituents joined to the nitrogen by carbon-to-nitrogen bonds (e.g. methyl or other lower alkyl substituents). Examples of specific amphoteric detergents are N-alkyl-betaaminopropionic acid, N-a1ky1-beta-iminodipropionic acid, and N-alkyl, N,N-dimethyl glycine; the alkyl group may be, for example, that derived from coco fatty alcohol, lauryl alcohol, myristyl alcohol (or a lauryl-myristyl mixture), hydrogenated tallow alcohol, cetyl, stearyl, or blends of such alcohols. The substituted aminopropionic and iminodipropionic acids are often supplied in the sodium or other salt forms, which may likewise be used in the practice of this invention. Examples of other amphoteric detergents are the fatty imidazolines such as those made by reacting a long chain fatty acid (e.g. of 10 to carbon atoms) with diethyl ene triamine and monohalocarboxylic acids having 2 to 6 carbon atoms, e.g. l-coco-5-hydroxethyl-5-carboxymethylimidazoline; betaines containing a sulfonic group instead of the carboxylic groups; betaines in which the long chain substituent is joined to the carboxylic group without an intervening nitrogen atom, e.g. inner salts of 2-trimethylamino fatty acids such as 2-trimethylaminolauric acid, and compounds of any of the previously mentioned types but in which the nitrogen atoms is replaced by phosphorous.
Various other materials may be present in the granular products. Thus, materials such as the higher fatty acid amides maybe added to improve detergency and modify the foaming properties in a desirable manner. Examples thereof are the higher fatty acid alkanolamides, preferably having 2-3 carbons in each alkanol group and a fatty acyl radical within the range of 10-18 carbons, preferably 10-14 carbons, such as lauric or myristic monothanolamides, diethanolamides and isopropanol-amides. Tertiary higher alkyl amino oxides such as having about l0-18 carbons in one alkyl group, e.g. lauryl of myristyl dimethylamine oxide, may be added also. Fatty alcohols of 10-18 carbons such as lauryl or coconut fatty alcohols, or cetyl alcohol are suitable additives also. A hydrotropic material such as the lower alkyl aryl sulfonates, e.g. sodium toluene or xylene sulfonates, can assist processing also. In general, these materials are added in minor amounts, usually from about k to 10 percent, preferably 1 to 6 percent, based on the total solids.
The mixtures may also contain optical brightening agents or fluorescent dyes (e.g. in amounts in the range of about 1/20 to k percent); germicidal ingredients such as halogenated carbanilides, e.g. trichlorocarbanide, halogenated salicylanilide, e.g. tribromosalicylanilide, halogenated bisphenols, e.g. hexachlorophene, halogenated trifluoromethyldiphenyl urea, zinc salt of 1-hydroxy-2-pyridinethione and the like (e.g. in amounts in the range of about 1/50 to 2 percent); soil-suspending suspending agents such as sodium carboxymethyl cellulose or polyvinyl alcohol, preferably both, or other soluble polymeric materials, such as methyl cellulose (the amount of suspending agent being, for example, in the range of about 1/20 to 2 percent); antioxidants such as 2,6-di-tertbutylphenol, or other phenolic antioxidant materials (e.g. in amounts in the range of about 0.001 to 0.1 percent), coloring agents, bleaching agents and other additives.
The following Examples are given to illustrate this invention further. In these Examples, as in the rest of the application, all proportions are by weight unless otherwise specified. Also, in these Examples, the pressure is atmospheric unless otherwise specified.
EXAMPLE 1 A thin mud-like slurry is prepared in Standard Ross Mixer (of the double planetary type) by mixing at room temperature 24.0 parts of powdered proteolytic subtilisin enzyme preparation (Alcalase, 1.5 Anson Units/g) and 10.8 parts water. Then 65.2 parts of a commercial granular pentasodium tripolyphosphate hexahydrate are added granually, at the rate of about 45 parts per minute; the mixing is continued for about 3 minutes after addition of the pentasodium tripolyphosphate hexahydrate has concluded. in this example, the total weight of the batch is about 90.9 Kg (200 lbs.), the volume of the mixing vessel is about 40 gallons, and the speed of rotation of the double blade about the axis of the vessel is about 26 RPM.
The pentasodium tripolyphosphate hexahydrate used in this Example has the following screen analyses:
Screen Mesh Opening (mm) Remaining on Mesh Fan Total 100.0
The results of another analysis of another portion of the same material are: +10 mesh, 0 percent; +20, 1.5 percent; +30, 26 percent; +60, 83.9 percent, -100 mesh, 2.4 percent. This TPP hexahydrate has a total water content of 18.3 percent, a free water content of 0.55 percent, of pH of 9.87, a bulky density of 0.705 g/cc and a P content averaging 47.16 percent.
The caky granules resulting from the mixing process are fed to a fluidized bed drier where they are fluidized by a stream of heated air and subjected to the drying action of the air for a period of minutes at a bed temperature rising to 50C.
The product is a granular material containing the enzyme distributed thoroughly therein, showing very little if any tendency to dust and showing very good resistance to loss of enzyme activity on aging. Its screen analysis (after removal of a very small portion of material retained on a 10 mesh sieve) is as follows:
Screen Mesh Remaining on Mesh 20 l 1.7 40 47.0 60 26.8 80 8.4 100 2.5 Pan 3.5
Total 99.9
The proteolytic subtilisin enzyme preparation used in the foregoing Example has its minimum proteolytic activity at a pH of 8 9. This activity as measured at pH 7.5 on the commercial enzyme preparation available from Novo Industri A/S, Copenhagen, Denmark is about 1.5 Anson Units per gram of the enzyme. The commercial enzyme preparation is a raw extract of bacillus subtillis culture and contains about 6 percent of pure crystallized proteolytic material. The preparation is an extremely fine powder; typically the particle diameter is mainly below 0.15 mm, generally above 0.01
mm, e.g. about 0.1 mm, and as much as 50 percent or even 75 percent of material may pass through a 100 mesh sieve. The preparation contains about 70 percent NaCl and about -18 percent Na SO Its organic content is in the neighborhood of 11 percent.
EXAMPLE 2 Example 1 is repeated except that one starts with an enzyme preparation which is richer in the enzyme. Here there are used 9.0 parts of enzyme preparation having an enzyme content of 4.0 Anson units per gram, 14.0 parts of water and 77 parts of the TPP hexahydrate.
EXAMPLE 3 The products of each of the foregoing Examples are dry blended with spray dried hollow beads ofa mixture of pentasodium tirpolyphosphate, an organic detergent (sodium linear tridecylbenzenesulfonate), sodium silicate (Na- O:SiO ratio 1.012.35), optical brighteners, and sodium sulfate to give, in each case, a composition having the following approximate analysis: total anhydrous phosphate solids 70 percent, organic detergent 6.75 percent, sodium silicate 5.1 percent, brighteners 018 Percent, 1 Qrwr (P or minu 12mm). the enzyme preparation 0.76 percent, and the balance being sodium sulfate.
The resulting granular solid mixture is a highly effective presoak product, which is mixed with water (e.g. to form a 0.19 percent solution of the whole solid mixture) and used for soaking soiled and stained cotton garments or other fabric material (e.g. for l to 24 hours) prior to washing said fabric materials.
The accompanying drawings.are photomicrographs,
with the scale indicated for each picture for the material in the foreground. FIGS. 1, 2 and 3 are made with a conventional scanning electron microscope (in which the specimen is scanned with an electron beam, the electrons reflected from the surface of the specimen are collected and used, through intermediate light signals, to modulate the scanning beam of a cathode ray tube to give a picture like that seen on a television screen); the specimens are pre-coated with a very thin layer of conductive material (e.g. a 50A. thick layer of gold, applied in a vacuum) as is conventional in the use of the instrument, to give a clearer picture. The scanning electron microscope has a much greater depth of field than an ordinary light microscope.
FIG. 1 shows two granules of the hydrated TPP (commercial porous TPP hexahydrate as used in the foregoing Examples). The wormy elements near the bottom of each granule are merely the adhesive used to attach the granules to the base on which they rest in the instrument.
FIG. 2 shows a granule of the product of Example I. It can be seen that the granule includes attached smaller particles agglomerated therewith.
FIG. 3 is a view showing several granules of the product of Example 1.
FIG. 4 is a view of the granules of the product of Example l, taken with a light microscope using transmitted light, with the specimen immersed in oil (a conventional microscope technique). The transparent crystals are believed to be sodium chloride crystals from the enzyme preparation; some of these have apparently been formed by solution in the aqueous medium of the slurry followed by recrystallization.
It will be apparent that variations of the invention may be made and equivalents substituted therefor.
I claim:
1. Process for producing a granular enzymecontaining product which comprises adding porous granules of hydrated pentasodium tripolyphosphate, whose water content is at least about percent of that of pure pentasodium tripolyphosphate hexahydrate and whose particle size distribution is such that over 40 percent is retained on a 40 mesh sieve and substantially none is retained on a 10 mesh sieve, gradually to an aqueous slurry of protease enzyme fine powder while agitating, substantially all said tripolyphosphate being added to said slurry over a period of at least one half minute but less than five minutes, said slurry containing about 200 to 400 parts of the enzyme powder per parts of water, the amount of water in the slurry being such as to provide in said mixture a total water content (including water of hydration present in said tripolyphosphate) of about 35 to 55 parts of water per 100 parts of pentasodium tripolyphosphate, calculated as anhydrous pentasodium tripolyphosphate, whereby the resulting mixture thickens, then forms fragile aggregates which become smaller as the addition of said by: drated tripolyphosphate with agitation continues, forming caky granules, which if squeezed together in the hand will form a coherent mass, and drying said caky granules to form free-flowing granules by subjecting said caky granules to air having a temperature of up to about 60C. until the total water content is reduced to about 20 to 30 parts of water per 100 parts of pentasodium tripolyphosphate, calculated as anhydrous pentasodium tripolyphosphate.
2. Process as in claim 1 in which said caky granules content about 75-85 percent of that of pure pentasoare dried in a fluidized bed at a temperature in the dium tripolyphosphate hexahydrate and said slurry is a range of about 40-60C.
3. Process as in claim 2 in which the granules of hydrated tripolyphosphate feed material have a water 5 mud-like mixture.
Dedication 3,773,671.-Ali Ghalz'b M ohammwd Husswin, Elizabeth, NJ. PRODUCTION OF GRANULAR MIXTURES. Patent dated Nov. 20, 1973. Dedication filed Mar. 20, 1980, by the assignee, Uolgate-Palmohve Oompwny.
Hereby dedicates to the Public the entire remaining term of said patent.
[Oyficz'al Gazette, M ay 20, 1980.]
Claims (2)
- 2. Process as in claim 1 in which said caky granules are dried in a fluidized bed at a temperature in the range of about 40*-60*C.
- 3. Process as in claim 2 in which the granules of hydrated tripolyphosphate feed material have a water content about 75-85 percent of that of pure pentasodium tripolyphosphate hexahydrate and said slurry is a mud-like mixture.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US82893869A | 1969-05-29 | 1969-05-29 | |
US17880071A | 1971-09-08 | 1971-09-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3773671A true US3773671A (en) | 1973-11-20 |
Family
ID=26874666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00178800A Expired - Lifetime US3773671A (en) | 1969-05-29 | 1971-09-08 | Production of granular mixtures |
Country Status (3)
Country | Link |
---|---|
US (1) | US3773671A (en) |
FR (1) | FR2043762A1 (en) |
NL (1) | NL7006570A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2753026A1 (en) * | 1976-12-02 | 1978-06-08 | Colgate Palmolive Co | CONCENTRATED GRINNY DETERGENT AND CLEANING AGENT FOR COARSE, WHITE AND COLORED LAUNDRY |
US5705469A (en) * | 1992-10-28 | 1998-01-06 | The Procter & Gamble Company | Process for the manufacture of a liquid detergent composition comprising a sulphiting agent and an enzyme system |
US6431370B1 (en) | 1995-01-27 | 2002-08-13 | Genencor International, Inc. | Direct enzyme agglomeration process |
US6602841B1 (en) * | 1997-12-20 | 2003-08-05 | Genencor International, Inc. | Granule with hydrated barrier material |
US20050109243A1 (en) * | 2003-11-21 | 2005-05-26 | Jardine Leslie A. | Sulfate dispersion chromate reducer |
-
1970
- 1970-05-04 NL NL7006570A patent/NL7006570A/xx unknown
- 1970-05-05 FR FR7016422A patent/FR2043762A1/fr not_active Withdrawn
-
1971
- 1971-09-08 US US00178800A patent/US3773671A/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2753026A1 (en) * | 1976-12-02 | 1978-06-08 | Colgate Palmolive Co | CONCENTRATED GRINNY DETERGENT AND CLEANING AGENT FOR COARSE, WHITE AND COLORED LAUNDRY |
US5705469A (en) * | 1992-10-28 | 1998-01-06 | The Procter & Gamble Company | Process for the manufacture of a liquid detergent composition comprising a sulphiting agent and an enzyme system |
US6431370B1 (en) | 1995-01-27 | 2002-08-13 | Genencor International, Inc. | Direct enzyme agglomeration process |
US6602841B1 (en) * | 1997-12-20 | 2003-08-05 | Genencor International, Inc. | Granule with hydrated barrier material |
US20050109243A1 (en) * | 2003-11-21 | 2005-05-26 | Jardine Leslie A. | Sulfate dispersion chromate reducer |
US7128782B2 (en) * | 2003-11-21 | 2006-10-31 | W.R. Grace & Co.-Conn. | Sulfate dispersion chromate reducer |
Also Published As
Publication number | Publication date |
---|---|
NL7006570A (en) | 1970-12-01 |
FR2043762A1 (en) | 1971-02-19 |
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