ITFI20090255A1 - STAIN REMOVER FOR WOOD - Google Patents

STAIN REMOVER FOR WOOD Download PDF

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Publication number
ITFI20090255A1
ITFI20090255A1 IT000255A ITFI20090255A ITFI20090255A1 IT FI20090255 A1 ITFI20090255 A1 IT FI20090255A1 IT 000255 A IT000255 A IT 000255A IT FI20090255 A ITFI20090255 A IT FI20090255A IT FI20090255 A1 ITFI20090255 A1 IT FI20090255A1
Authority
IT
Italy
Prior art keywords
wood
water
solution
stain remover
oxalic acid
Prior art date
Application number
IT000255A
Other languages
Italian (it)
Inventor
Stefano Stefanelli
Original Assignee
Stefano Stefanelli
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 Stefano Stefanelli filed Critical Stefano Stefanelli
Priority to IT000255A priority Critical patent/ITFI20090255A1/en
Publication of ITFI20090255A1 publication Critical patent/ITFI20090255A1/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/20Organic compounds containing oxygen
    • C11D3/2075Carboxylic acids-salts thereof
    • C11D3/2082Polycarboxylic acids-salts thereof
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10Objects to be cleaned
    • C11D2111/14Hard surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (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)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Description

DOMANDA DI BREVETTO PER INVENZIONE INDUSTRIALE DAL TITOLO: PATENT APPLICATION FOR INDUSTRIAL INVENTION WITH THE TITLE:

Smacchiatore per legno Stain remover for wood

Campo dell'Invenzione Field of the Invention

La presente invenzione si riferisce al campo dei prodotti per il trattamento del legno in particolare smacchiatori per le macchie dovute alle presenza di tannini. Stato dell'arte The present invention relates to the field of products for treating wood, in particular stain removers for stains due to the presence of tannins. State of the art

Come è noto gran parte dei legni impiegati in edilizia o più in generale in falegnameria sia a scopo costruttivo (come ad esempio travi e simili) come pure a scopo puramente decorativo (ad esempio pannelli di rivestimento, mobili, accessori ecc.) vanno soggetti a macchie, generalmente nerastre, dovute alla presenza nel legno di tannini. As is known, most of the woods used in construction or more generally in carpentry both for construction purposes (such as beams and the like) as well as for purely decorative purposes (for example cladding panels, furniture, accessories, etc.) are subject to spots, generally blackish, due to the presence of tannins in the wood.

Infatti i tannini, come in generale i fenoli, tendono a formare dei complessi colorati, generalmente nerastri o comunque scuri, con i sali di ferro con cui vengono a contatto. In fact, tannins, like phenols in general, tend to form colored complexes, generally blackish or in any case dark, with the iron salts with which they come into contact.

Per eliminare tali antiestetiche macchie, che possono arrivare a interessare anche i muri o le altre superfici a contatto con I legni macchiati, sono noti vari prodotti contenenti agenti complessanti (ad esempio acido ossalico) in combinazione con solventi e prodotti tensioattivi. To eliminate these unsightly stains, which can also affect walls or other surfaces in contact with stained woods, various products are known containing complexing agents (for example oxalic acid) in combination with solvents and surfactant products.

Nonostante la loro efficacia questi prodotti non soddisfano completamente le esigenze di mercato ed e quindi evidente l’interesse a sviluppare nuovi prodotti per risolvere i problemi suddetti. Despite their effectiveness, these products do not completely satisfy market needs and therefore the interest in developing new products to solve the aforementioned problems is evident.

Breve descrizione delle figure Brief description of the figures

La Fig. 1 (a) e (b) mostra l’effetto pulente di una soluzione secondo l’invenzione. Sommario dell’invenzione Fig. 1 (a) and (b) shows the cleaning effect of a solution according to the invention. Summary of the invention

E’ descritta una soluzione in acqua di acido ossalico che permette la perfetta e rapida eliminazione delle macchie su legno dovute alla presenza tannini. A solution of oxalic acid in water is described which allows the perfect and rapid elimination of stains on wood due to the presence of tannins.

Descrizione dettagliata dell'invenzione Detailed description of the invention

La presente invenzione consente di ovviare agli inconvenienti suddetti, grazie a soluzioni acquose di acido ossalico senza richiedere alcun altro componente. The present invention allows to overcome the aforementioned drawbacks, thanks to aqueous solutions of oxalic acid without requiring any other component.

In particolare le soluzioni acquose secondo la presente invenzione contengono acido ossalico in quantità comprese fra il 5 - 25% calcolato in peso sul peso totale della soluzione. In particular, the aqueous solutions according to the present invention contain oxalic acid in quantities ranging from 5 - 25% calculated by weight on the total weight of the solution.

La preparazione avviene semplicemente sciogliendo l’acido ossalico nell’acqua, eventualmente sotto blando riscaldamento nel caso si vogliano ottenere le soluzioni più concentrate. The preparation takes place simply by dissolving the oxalic acid in the water, possibly under mild heating if you want to obtain more concentrated solutions.

Si noti che non è necessario utilizzare acqua distillata o deionizzata ma si può utilizzare anche l'acqua come comunemente disponibile sia per scopi alimentari che industriali o agricoli . Note that it is not necessary to use distilled or deionized water but you can also use water as commonly available for both food and industrial or agricultural purposes.

La soluzione viene utilizzata semplicemente spruzzandola sulle macchie da eliminare, la loro scomparsa è praticamente immediata e totale (nei casi più ostinati può essere utile ripetere il trattamento dopo asciugatura del trattamento precedente). The solution is used simply by spraying it on the stains to be eliminated, their disappearance is practically immediate and total (in the most stubborn cases it may be useful to repeat the treatment after drying of the previous treatment).

La soluzione secondo la presente invenzione è particolarmente efficace nel caso di legno di latifoglie come ad esempio castagno, rovere e legni simili. The solution according to the present invention is particularly effective in the case of hardwoods such as chestnut, oak and similar woods.

Esempio Example

25 kg di acido ossalico sono stati sciolti in 200 It di acqua sotto blando riscaldamento e la soluzione ottenuta è stata lasciata raffreddare a temperatura ambiente e quindi suddivisa in contenitori spray di varie dimensioni. 25 kg of oxalic acid were dissolved in 200 It of water under gentle heating and the solution obtained was allowed to cool to room temperature and then divided into spray containers of various sizes.

Nella Figura 1 (a e b) è visibile il risultato del trattamento ottenuto spruzzando 50 cc. di una soluzione ottenuta secondo l’esempio 1 su una superficie di castagno con macchie dovute alla presenza di viti di fissaggio in ferro. Figure 1 (a and b) shows the result of the treatment obtained by spraying 50 cc. of a solution obtained according to example 1 on a chestnut surface with stains due to the presence of iron fixing screws.

Claims (7)

RIVENDICAZIONI 1. Smacchiatore per macchie di tannino su legno costituito da una soluzione di acido ossalico in acqua. CLAIMS 1. Stain remover for tannin stains on wood consisting of a solution of oxalic acid in water. 2. Smacchiatore secondo la rivendicazione 1 in cui l’acqua è acqua come disponibile sia per scopi alimentari che industriali o agricoli. 2. Stain remover according to claim 1 wherein water is water as available for both food and industrial or agricultural purposes. 3. Smacchiatore secondo le rivendicazioni 1 e 2 in cui l’acido ossalico è presente in quantità comprese fra il 5 - 25% calcolato in peso sul peso totale della soluzione. 3. Stain remover according to claims 1 and 2 in which oxalic acid is present in quantities ranging from 5 - 25% calculated by weight on the total weight of the solution. 4. Processo per preparare una soluzione come da rivendicazione 1 in cui la quantità desiderata di acido ossalico è sciolta in acqua eventualmente riscaldando. 4. Process for preparing a solution according to claim 1 wherein the desired amount of oxalic acid is dissolved in water by optionally heating. 5. Metodo per eliminare le macchie di tannino su legno in cui si trattano dette macchie spruzzandole direttamente con una soluzione secondo le rivendicazioni 1 - 3 eventualmente ripetendo il trattamento. 5. Method for eliminating tannin stains on wood in which said stains are treated by spraying them directly with a solution according to claims 1 - 3 possibly repeating the treatment. 6. Metodo secondo la rivendicazione 5 in cui detto legno è legno di piante latifoglie. 6. A method according to claim 5 wherein said wood is deciduous plant wood. 7. Metodo secondo la rivendicazione 6 in cui detto legno è castagno, rovere e simili.7. A method according to claim 6 wherein said wood is chestnut, oak and the like.
IT000255A 2009-12-10 2009-12-10 STAIN REMOVER FOR WOOD ITFI20090255A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT000255A ITFI20090255A1 (en) 2009-12-10 2009-12-10 STAIN REMOVER FOR WOOD

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000255A ITFI20090255A1 (en) 2009-12-10 2009-12-10 STAIN REMOVER FOR WOOD

Publications (1)

Publication Number Publication Date
ITFI20090255A1 true ITFI20090255A1 (en) 2011-06-11

Family

ID=42306874

Family Applications (1)

Application Number Title Priority Date Filing Date
IT000255A ITFI20090255A1 (en) 2009-12-10 2009-12-10 STAIN REMOVER FOR WOOD

Country Status (1)

Country Link
IT (1) ITFI20090255A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE900897A (en) * 1984-10-25 1985-02-15 Lorand Michel Surface cleaner contg. oxalic acid and formic acid - opt. with surfactant, esp. for vehicle or locomotive exteriors
US4734138A (en) * 1985-05-13 1988-03-29 Research Chemical Method of removing coating and restoring wood
US20060122091A1 (en) * 2004-12-02 2006-06-08 Harris Research, Inc. Composition and method for cleaning and neutralizing a surface

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE900897A (en) * 1984-10-25 1985-02-15 Lorand Michel Surface cleaner contg. oxalic acid and formic acid - opt. with surfactant, esp. for vehicle or locomotive exteriors
US4734138A (en) * 1985-05-13 1988-03-29 Research Chemical Method of removing coating and restoring wood
US20060122091A1 (en) * 2004-12-02 2006-06-08 Harris Research, Inc. Composition and method for cleaning and neutralizing a surface

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
ADLER, LINDA R.: "Removing an Old Finish from Wood", 30 September 1995 (1995-09-30), XP002590976, Retrieved from the Internet <URL:http://www.ca.uky.edu/HES/fcs/FACTSHTS/HF-LRA.051.PDF> [retrieved on 20100708] *
JEWITT, JEFF: "Using Wood Bleach", 1 July 1998 (1998-07-01), XP002590974, Retrieved from the Internet <URL:http://www.woodcentral.com/bparticles/woodbleach.shtml> [retrieved on 20100708] *
WILLIAMS, R.S., KNAEBE, M: "Iron Stain on Wood", 31 May 2002 (2002-05-31), XP002590975, Retrieved from the Internet <URL:www.fpl.fs.fed.us/documnts/finlines/willi02c.pdf> [retrieved on 20100708] *
WOOD FINISH SUPPLY: "Wood Bleach", 3 April 2007 (2007-04-03), XP002590989, Retrieved from the Internet <URL:http://web.archive.org/web/20070403011016/http://www.woodfinishsupply.com/OxalicAcid.html> [retrieved on 20100708] *

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