EP2097489A2 - Korrekturflüssigkeit mit trocknungsanzeige - Google Patents

Korrekturflüssigkeit mit trocknungsanzeige

Info

Publication number
EP2097489A2
EP2097489A2 EP07870381A EP07870381A EP2097489A2 EP 2097489 A2 EP2097489 A2 EP 2097489A2 EP 07870381 A EP07870381 A EP 07870381A EP 07870381 A EP07870381 A EP 07870381A EP 2097489 A2 EP2097489 A2 EP 2097489A2
Authority
EP
European Patent Office
Prior art keywords
solvent
fluorescent dye
composition
drying
time
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.)
Withdrawn
Application number
EP07870381A
Other languages
English (en)
French (fr)
Inventor
Carine Bethouart
José Duez
Bernard Faure
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.)
BIC SA
Original Assignee
BIC SA
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 BIC SA filed Critical BIC SA
Publication of EP2097489A2 publication Critical patent/EP2097489A2/de
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D10/00Correcting fluids, e.g. fluid media for correction of typographical errors by coating

Definitions

  • the present invention relates to a correction fluid containing a fluorescent dye as a drying indicator.
  • drying or visualization indicators to stationery compositions whose use involves a drying time after application, such as correction fluids.
  • the drying indicators used in the correction fluids are intended to allow the user to visually evaluate the moment when the composition is sufficiently dry, that is to say the moment when the film formed by the correction fluid can receive a new registration without risk of being damaged.
  • the drying indicators colored and therefore visible to the user at the time of application of the composition, gradually lose their color and ideally become completely colorless when the composition is dry.
  • patent application US2005 / 0075419 discloses a water-based correction fluid containing, as a drying indicator, a colored pH indicator.
  • the correction fluid also contains a volatile acid or a volatile base whose evaporation causes a change in the pH of the correction film and therefore the discoloration of the pH indicator.
  • compositions containing a colored pH indicator as a drying indicator is the precise adjustment of the fading time to the actual drying time of the composition. Indeed, when the pH of the composition changes too quickly and the indicator fades before the complete drying of the composition, the user is misled and the early rewrite will cause damage to the film. Conversely, when the pH variation and the indicator discoloration occur only a certain time after the complete drying of the composition, the user unnecessarily delays the time of rewriting and thus loses time.
  • the drying time of a correction fluid film depends on several parameters such as the evaporation rate (volatility) of the solvents, the speed of penetration of the solvents into the paper, which essentially depends on the surface tension of the solvent. fluid, the viscosity of the fluid and the surface energy of the support, and the rate of formation of the film.
  • the subject of the present invention is therefore a correction fluid with a colored drying indicator, containing
  • a good solvent for the fluorescent dye preferably having a boiling point less than or equal to 100 ° C. and, preferably,
  • Pyranine (CAS 6358-69-6, Color Index No. 59040) is a yellow-green colorant, FDA approved as a dye of cosmetic compositions. This dye is not part of the colored pH indicators. Indeed, it has, over the entire pH range, a fluorescence emission whose characteristics vary too gradually so that they can serve as a pH indicator.
  • this dye to serve as a drying indicator in the compositions of the present invention is therefore not related to its state of protonation / deprotonation, but, inter alia, to its solvatochromism in relation to its solvation state in the solvent mixture of the composition.
  • the Applicant has furthermore found that when the good solvent used was water, the addition of an organic solvent chosen from the bad solvents of the fluorescent dye resulted in a modification, generally an acceleration, of the speed of penetration of the solvent phase in the paper medium on which the correction fluid was applied and that this acceleration of the penetration rate in turn had repercussions on the drying speed of the film and the coloring rate of the dye.
  • bad solvent denotes organic solvents in which the solubility of the fluorescent dye is less than or equal to 0.01 g / l at 20 ° C.
  • the good solvent has a boiling point less than or equal to 100 ° C.
  • this good solvent is preferably water, chosen for its perfect safety and its very low cost. Especially preferred is demineralised water.
  • the upper limit of the boiling point (100 ° C.) is motivated solely by the drying time of the composition. Above a boiling point of 100 ° C., the good solvent which constitutes the greater part of the composition would take a long time to evaporate, which would lead to an undesirable extension of the drying time of the film.
  • the wrong solvent must be miscible with the right solvent of the fluorescent dye.
  • the good and bad solvents do not necessarily need to be miscible with each other in all proportions, but their miscibility must be guaranteed at least for good solvent / bad solvent of the correction fluid before application and during of the drying step.
  • Examples of preferred poor solvents are C 8 -C 18 alkylene glycols such as butylene glycol and hexylene glycol, C 2 -4 lower alcohols such as ethanol, n-propanol, isopropanol, n-propanol and the like. butanol and isobutanol, and dioxane.
  • the decolorization time of the fluorescent dyes can be adjusted to the drying time of the compositions of the present invention by adding a relatively small amount of one or more bad solvents, of the order of a few to - only one hundred.
  • the ratio by weight of the good solvent to the bad solvent in the compositions of this The invention is preferably between 99/1 and 80/20, in particular between 98/2 and 90/10.
  • the composition according to the present invention preferably has a basic pH, advantageously between 7 and 11, preferably between 7.5 and 10. In this range of pK, the fluorescence intensity of the fluorescent dye is in fact particularly high and the Discoloration at the time of drying of the applied film is easily detectable to the human eye.
  • This pH can be adjusted by addition of any base, not necessarily volatile. Examples of such bases are ammonia, triethanolamine and amino-2-methyl-1-propanol (AMP).
  • the pH of the compositions according to the invention may optionally be fixed by an appropriate buffer.
  • the concentration of the fluorescent dye in the correcting fluids of the present invention is preferably between 0.01% and 1% by weight, in particular between 0.1 and 0.5% by weight, relative to the total weight of the composition.
  • the corrector fluid of the present invention contains, in addition to the fluorescent dye and the solvent phase described above, one or more adjuvants commonly used in this type of composition, chosen, for example, from film-forming polymers, fillers and opacifying pigments. preferably white pigments such as titanium dioxide, optical brighteners, dyes, anti-freeze agents such as glycerol, surfactants and preservatives.
  • one or more adjuvants commonly used in this type of composition chosen, for example, from film-forming polymers, fillers and opacifying pigments. preferably white pigments such as titanium dioxide, optical brighteners, dyes, anti-freeze agents such as glycerol, surfactants and preservatives.
  • Composition A (without a bad solvent) 0.15% by weight of Solvent Green 7, sold under the name YELLOW PYRACID G by the company COLOREY, is added to a conventional correction fluid (base fluid) having the following composition:
  • the fading time of the fluorescent dye is estimated by visual evaluation or by colorimetry (L * a * b * system).
  • composition A a film drying time of about 1 minute and a reaction time are determined. discoloration of about 3 minutes. This result is not satisfactory because the user if he waits for the complete discoloration of the film before rewriting on it loses unnecessarily about 2 minutes.
  • compositions B and C (with bad solvent)
  • composition A containing 99.85% of base fluid and 0.15% of Solvent Green 7, 4.00% of hexylene glycol (Composition B) and 4.00% of n-propanol (Composition C) are added. .
  • Composition B Drying time: 1 minute Fading time: 1 minute 10 seconds
  • Composition C is a composition having Composition C:

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Paints Or Removers (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
EP07870381A 2006-12-11 2007-12-03 Korrekturflüssigkeit mit trocknungsanzeige Withdrawn EP2097489A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0610787A FR2909680B1 (fr) 2006-12-11 2006-12-11 Fluide correcteur avec indicateur de sechage
PCT/FR2007/052433 WO2008074956A2 (fr) 2006-12-11 2007-12-03 Fluide correcteur avec indicateur de sechage

Publications (1)

Publication Number Publication Date
EP2097489A2 true EP2097489A2 (de) 2009-09-09

Family

ID=38066563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07870381A Withdrawn EP2097489A2 (de) 2006-12-11 2007-12-03 Korrekturflüssigkeit mit trocknungsanzeige

Country Status (9)

Country Link
US (1) US8182595B2 (de)
EP (1) EP2097489A2 (de)
JP (1) JP2010512443A (de)
CN (1) CN101605858B (de)
BR (1) BRPI0720214A2 (de)
CA (1) CA2671761A1 (de)
FR (1) FR2909680B1 (de)
MX (1) MX2009006172A (de)
WO (1) WO2008074956A2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8828271B2 (en) * 2008-07-03 2014-09-09 Bostik, Inc. Hot melt wetness indicator adhesive composition containing UV fluorescent agent

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5232494A (en) * 1992-07-31 1993-08-03 Binney & Smith Inc. Color changing compositions
US5498282A (en) * 1992-07-31 1996-03-12 Binney & Smith Inc. Color changing pan paint compositions
US5478382A (en) * 1992-07-31 1995-12-26 Binney & Smith Inc. Color changing compositions for use on non-porous surfaces
US6517622B1 (en) * 2000-09-05 2003-02-11 Kodak Polychrome Graphics, Llc Additive correction fluid for metal printing forms
FR2818655B1 (fr) * 2000-12-22 2004-05-14 Conte Composition liquide coloree pour surligneur
EP1366126B1 (de) * 2001-01-30 2007-05-30 Schwan-STABILO Schwanhäusser GmbH & Co. KG Markierungsflüssigkeit
US6946023B2 (en) * 2002-06-06 2005-09-20 Avery Dennison Corporation Smear-resistant ink compositions
US7442725B2 (en) * 2003-10-02 2008-10-28 Sanford, L.P. Color changing correction fluid
US7229487B2 (en) * 2004-01-14 2007-06-12 Sanford, L.P. Writing instruments with eradicable inks and eradicating fluids

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008074956A2 *

Also Published As

Publication number Publication date
US20100163799A1 (en) 2010-07-01
FR2909680A1 (fr) 2008-06-13
CN101605858B (zh) 2012-09-26
CA2671761A1 (fr) 2008-06-26
BRPI0720214A2 (pt) 2013-12-24
MX2009006172A (es) 2009-08-25
JP2010512443A (ja) 2010-04-22
WO2008074956A3 (fr) 2008-09-12
FR2909680B1 (fr) 2010-12-10
US8182595B2 (en) 2012-05-22
WO2008074956A2 (fr) 2008-06-26
CN101605858A (zh) 2009-12-16

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