EP1347038B1 - Reinigungsmittelzusammensetzung zur Entfernung von Klebstoffen - Google Patents

Reinigungsmittelzusammensetzung zur Entfernung von Klebstoffen Download PDF

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Publication number
EP1347038B1
EP1347038B1 EP02006509A EP02006509A EP1347038B1 EP 1347038 B1 EP1347038 B1 EP 1347038B1 EP 02006509 A EP02006509 A EP 02006509A EP 02006509 A EP02006509 A EP 02006509A EP 1347038 B1 EP1347038 B1 EP 1347038B1
Authority
EP
European Patent Office
Prior art keywords
percent
weight
composition
adhesive
cleaning
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 - Fee Related
Application number
EP02006509A
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English (en)
French (fr)
Other versions
EP1347038A1 (de
Inventor
John Harrington
Melissa L. Sardina
David W. Lydzinski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Starch and Chemical Investment Holding Corp
Original Assignee
National Starch and Chemical Investment Holding Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by National Starch and Chemical Investment Holding Corp filed Critical National Starch and Chemical Investment Holding Corp
Priority to EP02006509A priority Critical patent/EP1347038B1/de
Priority to DE60220135T priority patent/DE60220135T2/de
Publication of EP1347038A1 publication Critical patent/EP1347038A1/de
Application granted granted Critical
Publication of EP1347038B1 publication Critical patent/EP1347038B1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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
    • C11D1/123—Sulfonic acids or sulfuric acid esters; Salts thereof derived from carboxylic acids, e.g. sulfosuccinates
    • 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
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/32—Amides; Substituted amides
    • 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
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/32—Amides; Substituted amides
    • C11D3/323—Amides; Substituted amides urea or derivatives thereof
    • 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
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces
    • C11D2111/20—Industrial or commercial equipment, e.g. reactors, tubes or engines
    • 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
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/40—Specific cleaning or washing processes
    • C11D2111/46—Specific cleaning or washing processes applying energy, e.g. irradiation

Definitions

  • This invention relates to a cleaning solution that is useful for removing adhesives from the surfaces of hard substrates.
  • Adhesives are often applied industrially by a process involving transferring a wet adhesive to a machine part, then transfering the adhesive from the machine part to the material being adhered.
  • a wet adhesive to a machine part
  • transfering the adhesive from the machine part to the material being adhered For example, in the process of applying labels to beverage containers, high speed machines are used which transfer adhesive films, while wet, to pallets. The adhesive is then transfered from the pallet to a label picked from a label stack. Once coated with adhesive, the label is contacted with a container for permanent adhesion.
  • Machine parts which come in contact with adhesives need regular cleaning and maintenance on both a daily and longer-term basis to remove residual and built-up adhesive.
  • the adhesives can be difficult to remove from machine parts, and the cleaning process is sometimes time-consuming.
  • Conventional cleaning methods are not adequate for removing many adhesives, such as resin adhesives frequently used in the bottle labeling market. Solvents and harsh abrasives clean well, but can deteriorate machine parts, such as rubber pallets.
  • U.S. Patent Number 4,370,174 describes the removal of adhesives from floors with a cleaning solution containing 40 - 80 weight percent of an organic solvent, an inorganic solid absorbent powder, and two surfactants.
  • a cleaning solution containing 40 - 80 weight percent of an organic solvent, an inorganic solid absorbent powder, and two surfactants.
  • Such a solution contains both organic solvents and abrasives, which tend to deteriorate rubber parts often found on machinery.
  • U.S. Patent Number 6,017,863 describes an aqueous cleaning solution for removing uncured adhesive resins from substrates.
  • the cleaning solution contains a surfactant mixture of N-alkyl-2-pyrrolidone and an aminocarboxylic acid surfactant. It has been found, however, that aqueous surfactant solutions containing only surfactants and water are ineffective for removing many adhesives, and especially resin-based adhesives.
  • the problem solved by the present invention was to find a cleaning solution which effectively removes the adhesive from machine parts without damaging said parts.
  • an aqueous solution of a chaotropic agent and some surfactant is effective in removing many types of aqueous-based adhesives from the surfaces of hard substrates.
  • aqueous cleaning solution effective in removing adhesives from a hard substrate, and especially resin-based adhesives, from hard substrates.
  • a cleaning composition for removing adhesive from a hard substrate comprising:
  • Another object of the present invention is directed to a method for removing an adhesive from a hard substrate comprising forming a cleaning composition comprising:
  • the cleaning composition of the present invention is an aqueous solution containing a chaotropic agent and a surfactant.
  • a chaotropic agent is a chemical having hydrogen bonding capability, and that capability can be used to break apart molecules. Chaotropic agents loosen intermolecular and intramolecular interactions, such as hydrogen bonds and dipoles, forcing molecules to break apart. While not being bound to any theory, it is believed that chaotropic agents of the present invention act to break apart adhesive molecules by reducing and breaking hydrogen bonding and other interactions, making the adhesives easier to clean from surfaces.
  • the cleaning composition of the present invention contains from 5 to 74 percent by weight of a chaotropic agent, preferably 10 to 50 percent by weight.
  • Preferred chaotropic agents for use in the cleaning solution include urea and guanadine hydrochloride, most preferably urea.
  • the cleaning composition of the present invention also includes at least one surfactant.
  • Any surfactant is useful in the invention, including anionic, cationic, non-ionic, or amphoteric surfactants, or mixtures thereof.
  • Preferred surfactants include anionic and non-ionic surfactants, most preferably anionic surfactants.
  • the surfactant is present at from 0.001 to 10 weight percent of the solution, depending on the surfactant.
  • a preferred surfactant concentration is from 0.5 to 2 percent by weight.
  • the aqueous cleaning solution of this invention may contain one or more additives conventionally used in aqueous cleaning solutions.
  • additives include, but are not limited to, polysaccharides, d-limonene, solvents, perfumes, masking agents, defoamers, and preservatives.
  • Polysaccharide additives are useful in the cleaning solution.
  • a preferred polysaccharide is starch.
  • Polysaccharides are preferably present in the cleaning composition at up to 5 percent by weight, and most preferably at up to 2 percent by weight of the cleaning solution.
  • Solvents and masking agents known in the art may also be used in the cleaning composition. These additives include ethanol and polypropylene glycol.
  • Defoamers for use herein include stearates, silicone oils and adducts of ethylene oxide or propylene oxide with a C 12-18 fatty alcohol. Defoamers in the present invention are preferably used at up to 1 percent by weight of the cleaning solution.
  • Preservatives for use herein include those conventionally used in aqueous adhesives such as benzoates, amides and fluorides. Also included are the hydroxybenzoic acid esters such as p-hydroxybenzoic acid methyl ester or p-hydroxybenzoic butyl ester. The preservatives may be present at up to 0.5 percent by weight in the cleaning composition.
  • the cleaning composition may be formed by several methods known in the art, including, but not limited to, combining the components with stirring, and forming an aqueous concentrate which is then diluted with water to form an aqueous solution.
  • An example of a process for forming the cleaning composition of the present invention would be to combine 49.35 percent by weight of water with 49.35 percent by weight of urea, based on the total cleaning composition, heating the combination to 110°F, and then stirring for 20 minutes. To the aqueous urea solution are then added 1.0 percent of a sodium sulfosuccinate solution, 0.2 percent of a defoamer, and 0.1 percent of a preservative, by weight based on the total cleaning composition, and the mixture is then stirred for 30 minutes to form the cleaning composition.
  • the present invention is also directed to a process for removing adhesives from the surfaces of hard substrates.
  • Adhesives removable by the cleaning composition of the present invention are aqueous-based solution and emulsion adhesives.
  • the adhesives are removable with the cleaning composition when they are in both the wet and dry state. These include, but are not limited to: synthetic adhesives based on ethylene vinyl acetate, polyvinyl alcohol, polyvinyl acetate, acrylics and polyurethane; resin products; animal glues; and natural polymers, such as those based on casein and starch.
  • Aqueous-based adhesives may be formulated with additives such as tackifiers, thickeners, plasticizers, defoamers, preservatives, rheology modifiers, humectants, fillers, crosslinkers utilized in conventional amounts.
  • the cleaning solution of the invention is useful in removing adhesives used in many areas of manufacturing including, for example, bottle labeling, tissue towel, cigarettes, bag lamination, envelopes, non-contact extrusion, folding cartons, window patch, lumber and wood, folding carton wheel and pressure sensitive label adhesive applications.
  • the cleaning solution of the present invention is useful for cleaning adhesives from the surfaces of hard substrates.
  • Hard substrates include machine parts, floors, counters, tanks, tank trucks, tableware, piping and other hard materials which may be intentionally or accidentally contacted with an adhesive.
  • Machine parts include those parts made of stainless steel, aluminum and other metals and alloys, ceramics, stone, and rubber, such as neoprene and nitrile rubber.
  • the cleaning solution is also useful in the removal of adhesives from other hard substrates such as glass and plastics.
  • the cleaning solution of the invention is used to remove adhesive from surfaces of hard substrates by contacting the solution with the adhesive on said surfaces.
  • the cleaning solution may be applied to the hard substrate by any method known in the art. Examples of such methods include, but are not limited to, immersion techniques, spray techniques including both hosing or pumping from a pump bottle, and mechanical brushing.
  • the addition of energy increases the effectiveness of the cleaning solution in removing adhesives. Such energy may be added in the form of mechanical energy, such as stirring or scrubbing; heating the solution to temperatures below the boiling point of the cleaning composition; sonic energy, or any other energy form known in the art.
  • the cleaning composition may also be used in a diluted form.
  • One method for using the cleaning composition is to add the composition to a tank which contains water. This may be followed by heating and/or stirring, such as in a boil out. The water can then be drained from the tank.
  • cleaning solutions were formed and tested for their ability to remove various adhesives from several hard substrates.
  • the cleaning solution was formed by first adding water to a beaker, followed by the dispersion of the chaotropic agent in the water with stirring for about 20 to 30 minutes.
  • the surfactant was then added with stirring for about 20 to 30 minutes, to form the cleaning solution. All percentages are given in weight percent.
  • Residual tack is a measure of the tackiness remaining once the cleaned pallet is dried. The residual tack was measured by pressing a finger against the dried pallet and determining the tackiness of any remaining adhesive on the surface. Observations were recorded as tack-free (TF), little tack (L), some tack (S), moderate tack (M), and aggressive tack (A), in order of increasing levels of residual tack. Other observations were also recorded.
  • This Example compares the effectiveness of the cleaning solution of the invention with several comparative solutions.
  • the solutions listed were tested for cleaning effectiveness using an NBR-40D rubber pallet coated from a 2.0 mil thick film of IMPERVO formulated ethylene vinyl acetate emulsion resin-based adhesive, used in the bottle labeling market.
  • AEROSOL OT-75 PG is sodium sulfosuccinate with propylene glycol and water.
  • the results, listed in Table 1, show that cleaning compositions having water, urea, and an anionic surfactant are superior to the comparative solutions.
  • Both Examples 1B, and 1D resulted in the adhesive balling up and smeared on the pallet, as noted by an (*).
  • MONOWET MO-70-R is dioctyl sodium sulfosuccinate.
  • Table 2 show the effect of different water/urea ratios in the cleaning solution of the present invention.
  • Table 2 2A 2B 2C 2D Water 49.5 74.5 84.5 94.5 Urea 49.5 24.5 14.5 4.5
  • MONOWET MO-70R 1.0 1.0 1.0 1.0 Time to clean, sec 15-16 29-30 38-39 49-50 Residual tack S A A A A A
  • CYCLOFLEX adhesive is a formulated polystyrene butyl acrylate emulsion used in the bottle labeling industry.
  • COL-TITE is a formulated starch, and COL-TITE is a formulated casein emulsion adhesive.
  • This example compares the effect of the cleaning solution containing different chaotropic agents, and cationic and non-ionic surfactants, on different substrates.
  • 2.0 mil draw downs of IMPERVO resin-based adhesive were made on a glass plate, then an NBR-40D rubber pallet was rolled through the adhesive, and allowed to dry for 10 minutes.
  • a 1.5 mil thick film of the adhesive was also drawn on a stainless steel plate.
  • the results, listed in Table 6, show that the cleaning composition of the present invention, having different chaotropic agents and surfactants, is effective in the cleaning of aqueous adhesives from a variety of substrates.
  • IGEPAL CO-887 is nonylphenoxypoly(ethyleneoxy)ethanol.

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

Claims (19)

  1. Reinigungsmittelzusammensetzung zur Entfernung eines Klebers von einem harten Substrat, umfassend:
    a) 25 bis 98 Gew.-% Wasser;
    b) 5 bis 74 Gew.-% eines chaotropen Mittels; und
    c) 0,5 bis 2 Gew.-% wenigstens eines oberflächenaktiven Mittels.
  2. Zusammensetzung nach Anspruch 1, wobei das genannte chaotrope Mittel Harnstoff oder Guanadinhydrochlorid umfasst.
  3. Zusammensetzung nach Anspruch 1, die 10 bis 50 Gew.-% des genannten chaotropen Mittels umfasst.
  4. Zusammensetzung nach Anspruch 1, wobei das oberflächenaktive Mittel ein anionisches oder nicht-ionisches oberflächenaktives Mittel ist.
  5. Zusammensetzung nach Anspruch 4, wobei das oberflächenaktive Mittel ein anionisches oberflächenaktives Mittel ist.
  6. Zusammensetzung nach Anspruch 1, umfassend:
    a) 25 bis 98 Gew.-% Wasser;
    b) 5 bis 74 Gew.-% eines chaotropen Mittels;
    c) 0,5 bis 2 Gew.-% wenigstens eines oberflächenaktiven Mittels; und
    d) ein Polysaccharid, d-Limonen, ein Lösungsmittel, ein Parfüm, ein Maskierungsmittel, einen Entschäumer, ein Konservierungsmittel oder ein Gemisch davon.
  7. Zusammensetzung nach Anspruch 6, umfassend:
    a) 49,35 Gew.-% Wasser;
    b) 49,35 Gew.-% Harnstoff;
    c) 1,0 Gew.-% Natriumsulfosuccinatlösung;
    d) 0,2 Gew.-% eines Entschäumers; und
    e) 0,1 Gew.-% eines Konservierungsmittels.
  8. Zusammensetzung nach Anspruch 6, die bis zu 5 Gew.-% des genannten Polysaccharids umfasst.
  9. Zusammensetzung nach Anspruch 8, die bis zu 2 Gew.-% des genannten Polysaccharids umfasst.
  10. Zusammensetzung nach Anspruch 6, wobei das genannte Polysaccharid eine Stärke umfasst.
  11. Zusammensetzung nach Anspruch 6, die bis zu 3 Gew.-% d-Limonen umfasst.
  12. Zusammensetzung nach Anspruch 1 oder 6, die durch Verdünnung mit Wasser aus einem Konzentrat gebildet ist.
  13. Verfahren zur Entfernung von Kleber von einer harten Oberfläche, umfassend:
    a) Bilden einer Reinigungsmittelzusammensetzung, umfassend:
    i) 25 bis 98 Gew.-% Wasser;
    ii) 5 bis 74 Gew.-% eines chaotropen Mittels; und
    iii) 0,001 bis 10 Gew.-% wenigstens eines oberflächenaktiven Mittels; und
    b) In-Kontakt-Bringen der genannten Reinigungsmittelzusammensetzung mit einem Kleber auf einem harten Substrat.
  14. Verfahren nach Anspruch 13, wobei der Kontakt ein Eintauchen des Substrats in die genannte Reinigungszusammensetzung umfasst.
  15. Verfahren nach Anspruch 13, wobei die genannte Reinigungslösung auf den genannten Kleber aufgesprüht wird.
  16. Verfahren nach Anspruch 13, wobei das genannte Substrat ein Maschinenteil ist.
  17. Verfahren nach Anspruch 13, wobei das genannte Substrat ein Tank oder Tanklastwagen ist.
  18. Verfahren nach Anspruch 13, das außerdem das Zufügen von Energie zu der genannten Reinigungslösung in Kontakt mit dem Kleber umfasst.
  19. Verfahren nach Anspruch 18, wobei die genannte Energie in Form von mechanischer Energie, Wärmeenergie oder einer Kombination davon vorliegt.
EP02006509A 2002-03-18 2002-03-18 Reinigungsmittelzusammensetzung zur Entfernung von Klebstoffen Expired - Fee Related EP1347038B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP02006509A EP1347038B1 (de) 2002-03-18 2002-03-18 Reinigungsmittelzusammensetzung zur Entfernung von Klebstoffen
DE60220135T DE60220135T2 (de) 2002-03-18 2002-03-18 Reinigungsmittelzusammensetzung zur Entfernung von Klebstoffen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02006509A EP1347038B1 (de) 2002-03-18 2002-03-18 Reinigungsmittelzusammensetzung zur Entfernung von Klebstoffen

Publications (2)

Publication Number Publication Date
EP1347038A1 EP1347038A1 (de) 2003-09-24
EP1347038B1 true EP1347038B1 (de) 2007-05-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP02006509A Expired - Fee Related EP1347038B1 (de) 2002-03-18 2002-03-18 Reinigungsmittelzusammensetzung zur Entfernung von Klebstoffen

Country Status (2)

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EP (1) EP1347038B1 (de)
DE (1) DE60220135T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2632882C2 (ru) 2012-05-14 2017-10-11 ЭКОЛАБ ЮЭсЭй ИНК. Раствор для удаления этикеток с многоразовых бутылок для напитков
US9487735B2 (en) 2012-05-14 2016-11-08 Ecolab Usa Inc. Label removal solution for low temperature and low alkaline conditions
CN105331450B (zh) * 2014-08-11 2018-07-31 南京海杰亚生物科技有限公司 一种可以延时成膜的液体厨房油烟清洁剂
CN109837147B (zh) * 2019-01-09 2021-03-26 王鹏鹤 一种洗衣机门封胶圈霉斑清洗剂及其制备方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3340033A1 (de) * 1983-11-05 1985-05-15 Henkel KGaA, 4000 Düsseldorf Verfahren zur herstellung eines waeschebehandlungsmittels
US4601954A (en) * 1984-03-30 1986-07-22 Servicemaster Industries, Inc. Disinfectant formulation
US6399554B1 (en) * 2000-06-09 2002-06-04 National Starch And Chemical Investment Holding Corporation Cleaning composition for removing adhesives
US6340660B1 (en) * 2001-03-22 2002-01-22 Charles Gastgaber Urea hydrochloride stabilized solvent for cleaning stainless steel and aluminum

Also Published As

Publication number Publication date
DE60220135T2 (de) 2008-01-17
DE60220135D1 (de) 2007-06-28
EP1347038A1 (de) 2003-09-24

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