US3853782A - Silk screen cleaner composition - Google Patents
Silk screen cleaner composition Download PDFInfo
- Publication number
- US3853782A US3853782A US00312936A US31293672A US3853782A US 3853782 A US3853782 A US 3853782A US 00312936 A US00312936 A US 00312936A US 31293672 A US31293672 A US 31293672A US 3853782 A US3853782 A US 3853782A
- Authority
- US
- United States
- Prior art keywords
- sodium
- silk screen
- solution
- alkaline aqueous
- diethylene glycol
- 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
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- 239000000203 mixture Substances 0.000 title claims description 28
- 239000000243 solution Substances 0.000 claims abstract description 19
- 238000004140 cleaning Methods 0.000 claims abstract description 18
- 239000012224 working solution Substances 0.000 claims abstract description 14
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical group [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 41
- 238000009472 formulation Methods 0.000 claims description 20
- 239000004094 surface-active agent Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 8
- GLDUZMNCEGHSBP-UHFFFAOYSA-N 2-(2-octylphenoxy)ethanol Chemical compound CCCCCCCCC1=CC=CC=C1OCCO GLDUZMNCEGHSBP-UHFFFAOYSA-N 0.000 claims description 7
- WSJWBKDCVBOVLB-UHFFFAOYSA-N 2-phenoxyundecan-2-ol Chemical compound CCCCCCCCCC(C)(O)OC1=CC=CC=C1 WSJWBKDCVBOVLB-UHFFFAOYSA-N 0.000 claims description 7
- 239000012141 concentrate Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000007650 screen-printing Methods 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 235000011118 potassium hydroxide Nutrition 0.000 description 12
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 11
- -1 polyethylene terephthalate Polymers 0.000 description 11
- 229920005552 sodium lignosulfonate Polymers 0.000 description 11
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 description 10
- 239000004115 Sodium Silicate Substances 0.000 description 10
- 239000000176 sodium gluconate Substances 0.000 description 10
- 235000012207 sodium gluconate Nutrition 0.000 description 10
- 229940005574 sodium gluconate Drugs 0.000 description 10
- 229910052911 sodium silicate Inorganic materials 0.000 description 10
- 239000007787 solid Substances 0.000 description 10
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 9
- 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 9
- 239000000976 ink Substances 0.000 description 7
- 230000000873 masking effect Effects 0.000 description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 6
- XXJWXESWEXIICW-UHFFFAOYSA-N diethylene glycol monoethyl ether Chemical compound CCOCCOCCO XXJWXESWEXIICW-UHFFFAOYSA-N 0.000 description 6
- 229940075557 diethylene glycol monoethyl ether Drugs 0.000 description 6
- 239000003973 paint Substances 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- 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 5
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 5
- 230000002411 adverse Effects 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 description 5
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 125000000129 anionic group Chemical group 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 229920001187 thermosetting polymer Polymers 0.000 description 4
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
- 229920002689 polyvinyl acetate Polymers 0.000 description 3
- 239000011118 polyvinyl acetate Substances 0.000 description 3
- 239000011591 potassium Substances 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 2
- 229920006397 acrylic thermoplastic Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229920000180 alkyd Polymers 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 210000003298 dental enamel Anatomy 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 239000004922 lacquer Substances 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- DGAHNLRRGFNITR-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol;2-(2-ethoxyethoxy)ethanol Chemical compound CCOCCOCCO.CCCCOCCOCCO DGAHNLRRGFNITR-UHFFFAOYSA-N 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical group CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- RGHNJXZEOKUKBD-UHFFFAOYSA-N Isohexonic acid Chemical compound OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 125000005521 carbonamide group Chemical group 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 125000002704 decyl 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])* 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N dimethylmethane Natural products CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000001455 metallic ions Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 125000001400 nonyl 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])[H] 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 125000002347 octyl 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])[H] 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- PXLIDIMHPNPGMH-UHFFFAOYSA-N sodium chromate Chemical compound [Na+].[Na+].[O-][Cr]([O-])(=O)=O PXLIDIMHPNPGMH-UHFFFAOYSA-N 0.000 description 1
- KIEOKOFEPABQKJ-UHFFFAOYSA-N sodium dichromate Chemical compound [Na+].[Na+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KIEOKOFEPABQKJ-UHFFFAOYSA-N 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/044—Hydroxides or bases
-
- 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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/30—Sulfonation products derived from lignin
-
- 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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/37—Mixtures of compounds all of which are anionic
-
- 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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/83—Mixtures of non-ionic with anionic compounds
-
- 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
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/06—Phosphates, including polyphosphates
-
- 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
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/08—Silicates
-
- 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
- C11D3/20—Organic compounds containing oxygen
- C11D3/2068—Ethers
Definitions
- Silk screen techniques are widely used in certain I areas of technology including graphics, printed circuitry preparation, and the like.
- the silk weave is maintained or retained in a metallic frame, and a stencil masking material is applied thereto.
- the masking material traditionally includes polyvinyl acetate-polyvinyl alcohol as a binder together with a photosensitive substance such as sodium chromate, sodium bichromate, or a diazo material.
- a photosensitive substance such as sodium chromate, sodium bichromate, or a diazo material.
- the mask image is prepared and the latent nonpolymerized materials are washed from the screen weave, and the mask is then ready for use.
- paints or other materials are employed to properly prepare the image on the surface of the substrate or other medium to receive print.
- inks which are traditionally used are vinyls, alkyds, latex materials, thermosetting acrylics, lacquers including pigmented and non-pigmented materials, enamels, thermosetting polyethylene terephthalate, polyethylene or polypropylene, along with adhesives.
- epoxy-base materials are also utilized.
- an aqueous solution is employed for removing residue from silk screen stencils, wherein the solution contains an alkaline hydroxide along with other components which function as dispersents for pigments and other soils, solvents for the film-forming resins, and an inhibitor to protect the surface of the metallic frames, normally aluminum.
- the composition provides a working solution which rapidly removes residue from the screen surface, holds the residues in suspension; all of this being accomplished without adversely affecting either the silk weave substance or the metallic frame.
- an alkaline concentrate is prepared having the following formulation:
- Balance water This particular formulation is utilized as a concentrate which is further diluted with water to prepare the ultimate working solution.
- the concentrate is incorporated in water in a quantity ranging from between 10 percent and 60 percent of concentrate, balance water.
- the working solution is placed in a tank and the screen desired to be cleaned is immersed in the tank fora period of approximately 15 minutes. Such immersion is normally sufficient to remove approximately percent of the soil present on the screen, and effectively softens the polyvinyl acetate resist. Obviously, if the material were to be heated, the immersion time could be shortened.
- the screen is subjected to a spray rinse with the same working solution, with the rinse preferably being achieved with a nozzle capable of dispensing a discharge of approximately 2 gallons per minute at 500 psi. This will effectively remove the soil from the screen and after rinsing and drying, the screen is suited for re-use.
- silk screens are prepared utilizing multi-filament or monofilament polyester or nylon materials.
- the working solution of the present invention has been found to be non-harmful to these fabrics. Also, in addition to aluminum, steel and wood frames are in use, neither of which are adversely affected by the working solutions of the-present invention.
- the working solutions of the present invention are operational without requiring the use of flammable solvents or chlorine bleaches, both of which are difficult for handling.
- the surface active agents which are employed in the material are biodegradible, and thus provide an advantage in ultimate disposal.
- the formulations have long tank life, and exceptionally long shelf life. Thus, unusual precautions are not required for use.
- temperatures are not an absolute requirement, however it has been found that temperatures in the range of from 180 F. to 200 F. are desirable from the standpoint of cleaning efficiency.
- compositional range has been found particularly desirable for use with paints of the following composition or formulation; vinyls, alkyds, latex materials, thermosetting acrylics, lacquers including pigmented and non-pigmented materials, enamels, thermosetting polyethylene terephthalate, polyethylene or polypropylene, along with adhesives.
- potassium hydroxide is preferred, however it is understood that the hydroxide may be an alkaline earth hydroxide selected from the group consisting of sodium hydroxide and potassium hydroxide.
- This component in the formulation is an alkaline donor which enhances the cleaning function, as well as providing a neutralization source for acidic soil.
- potassium hydroxide functions as a silicate stabilizer as a potassium ion donor in the system.
- the tetrapotassium pyrophosphate in addition to functioning as a water softener in the working solution, is a strong dispersent for pigments dissolved in the cleaning operation.
- Sodium gluconate also identifiable as the sodium salt of 2, 3, 4, 5, 6 pentahydroxy-l-hexanoic acid, and the sodium ligno sulfonate function as strong dispersents for removed soil, and also operate to complex metallic ions present in the soils. In addition, these materials function as an anti-scale and sludge conditioner.
- Sodium lignosulfonate is the sodium salt of lignin sulfonic acid. While the exact structure of lignin has not as yet been determined, it is known to be a polymer with an average molecular weight of about 10,000.
- the repeating monomer unit is guar-acyl propane having the structural formula as follows:
- Sodium silicate solids are employed having'a Na O/- SiO ratio of l: 1.6 up to about 123.22. This range of materials has been found to be useful.
- the sodium silicate provides a strong corrosion inhibitor for soft metals such as aluminum, and also provides for a substantial degree of detergency.
- the diethylene glycol monobutyl ether and the diethylene glycol monoethyl ether are employed for their properties of strong penetrants and solvents for the film-forming resins. They have low odor, are water soluble, with high boiling points.
- the nonionic surface active agent is preferably selected from the group consisting of octyphenoxyethanol and nonylphenoxyethanol. These materials have a high cloud point (normally above C. are biodegradable, and alkaline stable. They tend to reduce the surface tension and therefore aid in rinsing after film removal. Other nonionic or anionic surface active agents may be used if desired.
- Anionic surface active agents which may be utilized successfully are sodium alkylbenzene sulfonate materials which are, of course, widely used for these purposes. These materials are commercially available.
- R is a straight or branched chain saturated hydrocarbon group having from about 8 to about 18 carbon atoms, such as a straight or branched group, such as octyl, nonyl, decyl, dodecyl and the like;
- A is either oxygen, sulfur, a carbonamide group, thiocarbonamide group, a carboxylic group or thiocarboxylic ester group,
- x is an integer from 3 to 8 and M is preferably sodium, but may be either hydrogen, potassium, ammonium, an organic amine such as ethanolamine, diethan- '5 olamide, triethanolamine, ethylene diamine or the like.
- sulfated oxyethylated alkyl phenol class of anionic surface active agents include ammonium nonylphenoxy tetraethylenoxy sulfate, sodium dodecylphenoxy triethyleneoxy sulfate,
- EXAMPLE 1 Percent Component by Weight Potassium hydroxide 0.397 Tetrapotassium pyrophosphate 0.9 Sodium silicate solids (Na O/SiO 1:3;22) 0.625 Sodium gluconate 0.1875 Sodium ligno sulfonate 0.0625 Diethylene glycol monobutyl ether 0.5 Diethylene glycol monethyl ether 25 Octylphenoxyethanol 0.0565 Balance water This formulation provided good results.
- EXAMPLE 2 Percent I Component by Weight Potassium hydroxide l.99 Tetrapotassium pyrophosphate 4.5 Sodium silicate solids (Na o/SiO 1:1.6) 3. l25 Sodium gluconate 0.938 Sodium ligno sulfonate 0.313 Diethylene glycol monobutyl ether 2.5 Diethylene glycol monoethyl ether 12.5 Nonylphenoxyethanol 0.238 Balance water.
- EXAMPLE 3 Percent Component by Weight Potassium hydroxide 1.32 Tetrapotassium pyrophosphate 3.0 Sodium silicate solids Nap/$0, 1:1.6) 2.08 Sodium gluconate 0.625 Sodium ligno sulfonate 0.208 Diethylene glycol monobutyl ethe 1.67 Diethylene glycol monethyl ether 8.33 Sodium dodecylphenoxy-triethyleneoxy sulfate 0. l 88 Balance water This formulation provided good results.
- EXAMPLE 4 Percent Component by Weight Potassium hydroxide 1.32 Tetrapotassium pyrophosphate 3.0 Sodium silicate solids 2.08 Sodium gluconate 0.625 Sodium ligno sulfonate 0.208 Diethylene glycol monbutyl ether L67 Diethylene glycol monoethyl ether 8.33 Potassium octylphenoxy triethyleneoxy sulfate 0. I88
- An alkaline earth hydroxide selected from the group consisting of sodium and potassium hydroxides .3 to 2 Tetrapotassium pyrophosphate 7 to 4 Sodium silicate solids (Na,O/SiO l:l.6 Y
- the alkaline aqueous cleaning solution as defined in claim 1 being particularly characterized in that said alkaline earth hydroxide is potassium hydroxide.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Detergent Compositions (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Coloring (AREA)
- Manufacturing Of Printed Wiring (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00312936A US3853782A (en) | 1972-12-07 | 1972-12-07 | Silk screen cleaner composition |
| CA169,587A CA975236A (en) | 1972-12-07 | 1973-04-26 | Silk screen cleaner composition |
| JP48070415A JPS5138241B2 (enrdf_load_stackoverflow) | 1972-12-07 | 1973-06-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00312936A US3853782A (en) | 1972-12-07 | 1972-12-07 | Silk screen cleaner composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3853782A true US3853782A (en) | 1974-12-10 |
Family
ID=23213661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00312936A Expired - Lifetime US3853782A (en) | 1972-12-07 | 1972-12-07 | Silk screen cleaner composition |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3853782A (enrdf_load_stackoverflow) |
| JP (1) | JPS5138241B2 (enrdf_load_stackoverflow) |
| CA (1) | CA975236A (enrdf_load_stackoverflow) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4435305A (en) | 1983-01-24 | 1984-03-06 | Tsoukalas Skevos N | Chemical formulation for reclaiming silk screens |
| WO1990000437A1 (de) * | 1988-07-15 | 1990-01-25 | Geier Henninger Kurt | Verfahren und vorrichtung zum reinigen von abgasen |
| US5567348A (en) * | 1992-04-30 | 1996-10-22 | Kao Corporation | Detergent composition for precision parts or jigs |
| US5888308A (en) * | 1997-02-28 | 1999-03-30 | International Business Machines Corporation | Process for removing residue from screening masks with alkaline solution |
| US6288015B1 (en) * | 1998-12-23 | 2001-09-11 | Henkel Kommanditgesellschaft Auf Aktien | Multiphase cleaning composition containing lignin sulfonate |
| US20020063095A1 (en) * | 2000-10-17 | 2002-05-30 | Jones David H. | Wastewater treatment |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5439516U (enrdf_load_stackoverflow) * | 1977-08-24 | 1979-03-15 | ||
| JPS582999B2 (ja) * | 1977-10-20 | 1983-01-19 | 株式会社関口 | 節水型洗剤 |
| JPS5647496A (en) * | 1979-09-26 | 1981-04-30 | Asahi Denka Kogyo Kk | Liquid detergent composition |
| JPS60161728A (ja) * | 1984-01-31 | 1985-08-23 | Kao Corp | 強アルカリ性洗浄剤組成物 |
| JPH0826350B2 (ja) * | 1990-04-19 | 1996-03-13 | 三洋化成工業株式会社 | 超音波洗浄機用洗浄剤 |
| JPH0737637B2 (ja) * | 1990-05-24 | 1995-04-26 | 荏原インフイルコ株式会社 | ろ布洗浄剤及びその洗浄方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA667292A (en) * | 1963-07-23 | The Dow Chemical Company | Paint stripping composition and method | |
| US3607764A (en) * | 1968-01-31 | 1971-09-21 | Grace W R & Co | Glass washing compound and process |
| US3681250A (en) * | 1970-09-14 | 1972-08-01 | Hooker Chemical Corp | Paint stripping composition and method |
-
1972
- 1972-12-07 US US00312936A patent/US3853782A/en not_active Expired - Lifetime
-
1973
- 1973-04-26 CA CA169,587A patent/CA975236A/en not_active Expired
- 1973-06-21 JP JP48070415A patent/JPS5138241B2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA667292A (en) * | 1963-07-23 | The Dow Chemical Company | Paint stripping composition and method | |
| US3607764A (en) * | 1968-01-31 | 1971-09-21 | Grace W R & Co | Glass washing compound and process |
| US3681250A (en) * | 1970-09-14 | 1972-08-01 | Hooker Chemical Corp | Paint stripping composition and method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4435305A (en) | 1983-01-24 | 1984-03-06 | Tsoukalas Skevos N | Chemical formulation for reclaiming silk screens |
| WO1990000437A1 (de) * | 1988-07-15 | 1990-01-25 | Geier Henninger Kurt | Verfahren und vorrichtung zum reinigen von abgasen |
| US5567348A (en) * | 1992-04-30 | 1996-10-22 | Kao Corporation | Detergent composition for precision parts or jigs |
| DE4314365B4 (de) * | 1992-04-30 | 2005-12-15 | Kao Corp. | Reinigungszusammensetzung für Präzisionsteile oder -vorrichtungen |
| US5888308A (en) * | 1997-02-28 | 1999-03-30 | International Business Machines Corporation | Process for removing residue from screening masks with alkaline solution |
| US6288015B1 (en) * | 1998-12-23 | 2001-09-11 | Henkel Kommanditgesellschaft Auf Aktien | Multiphase cleaning composition containing lignin sulfonate |
| US20020063095A1 (en) * | 2000-10-17 | 2002-05-30 | Jones David H. | Wastewater treatment |
| US6656357B2 (en) * | 2000-10-17 | 2003-12-02 | David H. Jones | Wastewater treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| CA975236A (en) | 1975-09-30 |
| JPS49109107A (enrdf_load_stackoverflow) | 1974-10-17 |
| JPS5138241B2 (enrdf_load_stackoverflow) | 1976-10-20 |
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