WO2009105809A1 - Procédé et système pour la formation de produits à base d'encre utilisables à partir de déchets - Google Patents

Procédé et système pour la formation de produits à base d'encre utilisables à partir de déchets Download PDF

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Publication number
WO2009105809A1
WO2009105809A1 PCT/AU2009/000207 AU2009000207W WO2009105809A1 WO 2009105809 A1 WO2009105809 A1 WO 2009105809A1 AU 2009000207 W AU2009000207 W AU 2009000207W WO 2009105809 A1 WO2009105809 A1 WO 2009105809A1
Authority
WO
WIPO (PCT)
Prior art keywords
ink
cartridges
inkjet
liberated
inkjet cartridges
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.)
Ceased
Application number
PCT/AU2009/000207
Other languages
English (en)
Inventor
Stephen Michael Morriss
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.)
Close Loop Technologies Pty
Original Assignee
Close Loop Technologies Pty
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
Priority claimed from AU2008900937A external-priority patent/AU2008900937A0/en
Application filed by Close Loop Technologies Pty filed Critical Close Loop Technologies Pty
Publication of WO2009105809A1 publication Critical patent/WO2009105809A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING 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
    • C09D11/00—Inks
    • C09D11/16—Writing inks
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING 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
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING 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
    • C09D11/00—Inks
    • C09D11/30—Inkjet printing inks

Definitions

  • the present invention relates - to the field of manufacturing and/or reclaiming compounds which can be used in ink, dye or paint.
  • the invention relates to the formation of useabfe ink, dye or paint products from wastes. Specifically, the present invention relates to the reclamation and/or re-use of ink from waste and/or recycled InkJet cartridges.
  • Figure 1 illustrates the various chemicals present in only one brand of inkjet cartridge ink. Each brand has different chemistries, including different chemical compositions and different physical and chemical characteristics.
  • One issue which has proved to be problematic is a contamination issue arising from the various brands, chemistries and colours involved in the recycling of waste inkjet cartridges.
  • inkjet cartridges are, in the main, sent to landfill and/or incineration, neither of which provides a solution considered suitable in today's , environmentaily conscience community.
  • the inventor has also realised that there are significant commercial opportunities for solutions to the recycling and/or reuse of waste products, especially the recycling from electronics products and related consumables.
  • An object of the present invention is to alleviate the problem of waste inkjet cartridges, specifically the ink resident in the cartridges.
  • a method of, and / or apparatus for, deriving ink adapted for use in writing instruments and other applications comprising obtaining inkjet cartridges and liberating at least a portion of ink resident in the cartridges.
  • ink adapted for use in writing instruments or for printing or other purposes, the ink comprising ingredients at least partially derived from inkjet cartridges.
  • embodiments of the present invention stem from the realization that ink emanating substantially from waste and/or recycled inkjet cartridges can be collected, processed and reused, for example in writing instruments such as fountain pens, rollerball pens, ballpoint pens, felt markers etc. and in other applications like paint, calligraphy ink, and inkjet printing.
  • the recycled inkjet cartridges include a variety of makes and models and therefore a variety of substantially incompatible ink chemistries and colours and thus in the past there have been contamination and other technical issues with recovering and reusing ink from waste inkjet cartridges.
  • Advantages provided by the present invention comprise the following: « To reduce the lifecycle impacts of inkjet printing or printing with inkjet cartridges
  • Figure. 1 illustrates a representation of the various chemicals present in several models from only one brand of inkjet cartridge.
  • Figure 2 illustrates a flow chart representing one embodiment of an aspect of the present invention
  • Figure 3 illustrates a summary of an approximate composition of the ink according to a second embodiment of the present invention DETAILED DESCRIPTION in one preferred embodiment, a method and apparatus for recovering and reusing waste ink from recycled inkjet cartridges is disclosed.
  • Figure 1 illustrates a chemical analysis of a random sample of ink from different printers.
  • Figure 1 also illustrates an example of the type of residual ink which is used as an input to the process of the present invention.
  • Inks comprise
  • the inputs include but are not limited to water based dye, water based pigment, and water based solvent inks including ail colours but predominantly black, cyan, yellow, and magenta. It is to be noted that the chemistry and colour of the residual ink inputs may vary from time to time dependent upon the type and nature of the ink cartridges which are provided as inputs to the present invention.
  • waste inkjet cartridges are processed to liberate any residual ink.
  • Figure 2 illustrates a flowchart 200 representing this embodiment, in general.
  • the cartridges are derived from waste cartridges, such as post consumer, imaging supplies, supplies for desktop and/or commercial inkjet printing devices and/or post industrial cartridge materia!. These cartridges preferably provide substantially the input to the process of the present invention. Alternatively, the cartridges may be mixed with other inputs which may be used to produce a usable ink.
  • the ink may be liberated preferably by size reduction 201 , such as shredding of the ink cartridges.
  • the various component parts of the inkjet cartridge are substantially separated from the ink 202, for example by centrifuging the size reduced InkJet cartridges.
  • the liberated ink consists of numerous chemistries and colours.
  • the present invention is directed to the ink liberated from the inkjet cartridges, regardless of how the ink is liberated.
  • Foliowing size reduction 201 the liberated ink is filtered 203 to preferably remove at least some of the contaminants of the size reduction step.
  • An example of the filtration is ultra-fine filtration, for example to remove matter less than 100 micron. More specifically the filtration should be adapted to filter particles less than 30 micron, or even less than 5 micron.
  • the filtered ink is then homogenised 204 in order to mix the various chemicals and/or colours together to obtain a relatively consistent and stable mixture.
  • the homogenised mix is then tested 205 to ascertain certain chemical and physical parameters and if any additives are necessary.
  • the testing includes any one or any combination of ( but is not limited to):
  • Non volatile residue to determine the amount of non- volatile materials within the ink composition
  • pH test to determine the acidity or alkalinity of the recycled ink
  • Corrosion tests to determine corrosive effects if any, on materials in contact with the ink; 10. Microbial activity: to determine the sterility or microbial activity of the ink, if any, as pertaining to prolonged biological product stability;
  • Formulation stability to determine the overall chemical and physical stability of the ink matrix upon storage and environmental exposure over time.
  • the additives are introduced to the mix to supplement any ingredients lacking in the liberated ink and to minimise variability of colour and chemistry in order to produce ink suitable for the particular use such as writing instrument ink, etc.
  • the additives may be chosen from carbon black and/or other dyes and/or pigments (to provide some colouring or blackening of the product) and/or other chemicals and/or amines, and/or glycols, and/or alcohols to enhance the colour and/or the manner in which the ink presents on paper and/or to determine drying characteristics of the ink may be added.
  • the additives such as would be known by those skilled in the art may also be used to adjust the properties of the solvent (typically water) which impacts feathering properties of the ink.
  • additives may be provided to enhance or alter the smelt of the ink resulting from the process according to the present invention.
  • the various additives which may be used in the present invention may be known to the skilled person, and added to provide a desired outcome / property of the useable ink.
  • the homogenised mix is changed to be aligned with the particular application, such as:
  • Fountain Pen Ink water based fluid (main component about 55-75%) and comprising smaller levels in the range of 3 to 20% of glycols (diols, triols) amines etc to control the drying rate and penetration into paper based substrates and still keep the ink 'open 1 in the pen's reservoir and delivery
  • rollerball ink water based fluid (main component about 55-75%) and comprising smaller levels in the range of 3 to 20% of glycols (diols, triols) amines etc to control the drying rate and penetration into paper based substrates and still keep the ink Open' in the pen's reservoir and delivery
  • Calligraphy ink similar to fountain pen ink (above) but usually has a small amount of resinous material (shellac, cellulosic, acrylic, etc) of up to 5% to allow the ink to 'sit' up more on the surface of the substrate and give it a small level of gloss for artistic effects.
  • Felt pen marker ink comprises essentially a dye in solvent. There are two types: a. ⁇ solvent based (xylene/toiuene) which uses a solvent based dye.
  • InkJet inks such as Drop on Demand (DOD) or continuous inkjet printing applications through various nozzle types and configurations. These inks will usually be water based pigments, dyes or solvents.
  • the Ink obtained by virtue of the present invention 206 may be used in a variety of writing instruments and applications, such as, without limitation fountain pens, rplierball and ballpoint pens, quills, felt marker pens, inkjet inks and/or any ink based writing or printing instruments.
  • the ink may also be used in a variety of applications, such as calligraphy, printing, screen printing, inkjet cartridges, printer ribbons, dye (such as fabric dye), paint and/or art supplies.
  • the table in Figure 3 provides a summary of an approximate composition of the ink according to a second embodiment of the present invention. A number of compositions reflect the use of the present invention in various writing instruments and applications. It is to be noted that the uses are only exemplary, and not limited oniy to those disclosed in the table.
  • the 'typical recipe' represents the composition of currently available commercial brands of similar products.
  • 'L.base' represents liberated ink according to an aspect of the present invention.
  • the L.base ink has various compositions added to it (as is illustrated in the table) in order to obtain a resultant ink which can be used in the writing instruments shown.
  • the product is obtained by removal of the ink residues from printer cartridges.
  • the feedstock of cartridges contains many different colours, and the ink removal process is not necessarily colour selective, the overriding colour of the product is essentially black.
  • the cartridges are sorted by colour prior to ink residue removal to facilitate production of a specific colour (non-black) ink.
  • the product in accordance with this embodiment, is aqueous based.
  • the product is a black, water based liquid with a faint organic-type odour.
  • the chemical specification for the product is as follows: pH 7.5 - 8.5
  • VOC Volatile organic component
  • the product has a chemical specification as follows: pH 5.5 - 9.0
  • the product represents a relatively low cost source of aqueous based dyes and/or pigments for various coloured coatings such as inks, dyes and paints.
  • Inks - fountain pen, rollerball, felt marker, whiteboard marker, ball point, inkjet (either drop on demand or continuous), calligraphy, flexographic cardboard etc.
  • Paints - aqueous black base for colour support in low cost paints.
  • the product is the residual extraction of used digital inkjet printer cartridges. All colour ink cartridges, as well as black, are used in the recycling process, the resultant ink stream being a heavily toned black.
  • Polar solvent e.g. 2- pyrrolidone and derivatives
  • Organic solvent e.g. Diols, substituted diols and humectants
  • Surfactant e.g. Ethoxylated surfactants
  • Ink additive eg metal or ammonium nitrate salts
  • Alkyldiol ethoxylated based surfactants 2 - 3 % w/w Nitrate salts (metal/ammonium) 1 - 2 % w/w
  • compositional Details As the product is derived from extraction of ink cartridges from many sources there may be additional materials of similar chemical structure, i.e. diols and glycols with various alkyl chain lengths. These materials wiii contribute to the overall organic content.
  • a typical composition of the product is set out below: Compositional Details
  • Alkylated heterocyclic additives ⁇ 10 Water soluble non volatile materials 10 - 20 (typically ⁇ 12)
  • logic blocks e.g., programs, modules, functions, or subroutines
  • logic elements may be added, modified, omitted, performed in a different order, or implemented using different logic constructs (e.g., logic gates, looping primitives, conditional logic, and other logic constructs) without changing the overall results or otherwise departing from the true scope of the invention.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

La présente invention concerne le domaine de la fabrication et/ou récupération de composés qui peuvent être réutilisés comme encre et/ou additifs pour encres, peintures et pigments. Dans un mode de réalisation, l'invention porte sur la formation de produits à base d'encre utilisables ou d'additifs pour encres, colorants, peintures ou pigments à partir de déchets. De façon spécifique, la présente invention concerne la récupération et/ou la réutilisation d'encre à partir de déchets et/ou de cartouches de jet d'encre recyclées.
PCT/AU2009/000207 2008-02-27 2009-02-26 Procédé et système pour la formation de produits à base d'encre utilisables à partir de déchets Ceased WO2009105809A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
AU2008900937 2008-02-27
AU2008900937A AU2008900937A0 (en) 2008-02-27 A Method and System for the Formation of Useable Ink Products from Wastes
AU2008902263A AU2008902263A0 (en) 2008-05-09 A Method and System for the Formation of Useable Ink Products from Wastes
AU2008902263 2008-05-09
AU2008903083 2008-06-18
AU2008903083A AU2008903083A0 (en) 2008-06-18 A Method and System for the Formation of Useable Ink Products from Wastes
US9180908P 2008-08-26 2008-08-26
US61/091,809 2008-08-26

Publications (1)

Publication Number Publication Date
WO2009105809A1 true WO2009105809A1 (fr) 2009-09-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2009/000207 Ceased WO2009105809A1 (fr) 2008-02-27 2009-02-26 Procédé et système pour la formation de produits à base d'encre utilisables à partir de déchets

Country Status (1)

Country Link
WO (1) WO2009105809A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4874515A (en) * 1987-12-22 1989-10-17 The Ink Company Ink reclamation system
DE19521413A1 (de) * 1995-06-14 1996-12-19 Michael Nothelfer Tintenpatrone bzw. diesbezügliches Verfahren
US5628914A (en) * 1995-10-05 1997-05-13 Prasil; Frank Method for recycling lithographic ink
US5862753A (en) * 1996-11-18 1999-01-26 Pitney Bowes, Inc. Ink jet printing apparatus with handheld applicator
US6119866A (en) * 1998-07-15 2000-09-19 Hewlett-Packard Company Process and device for separation of wanted materials from product mixes which contain floating/absorbent material and metals with a ferromagnetic content
US6312117B1 (en) * 1998-09-03 2001-11-06 Hewlett-Packard Company Ink jet printer pen with extra fluid dispenser
US6383274B1 (en) * 1999-11-24 2002-05-07 Xerox Corporation Ink jet ink compositions and printing processes
WO2004069544A1 (fr) * 2003-02-07 2004-08-19 Close The Loop Technologies Pty Ltd Procede et appareil permettant de recuperer de l'encre de cartouches a jet d'encre
EP1947150A1 (fr) * 2005-09-14 2008-07-23 Canon Kabushiki Kaisha Encre de courrier, réservoir d encre de courrier, et dispositif et procédé d impression à jet d encre de courrier

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4874515A (en) * 1987-12-22 1989-10-17 The Ink Company Ink reclamation system
DE19521413A1 (de) * 1995-06-14 1996-12-19 Michael Nothelfer Tintenpatrone bzw. diesbezügliches Verfahren
US5628914A (en) * 1995-10-05 1997-05-13 Prasil; Frank Method for recycling lithographic ink
US5862753A (en) * 1996-11-18 1999-01-26 Pitney Bowes, Inc. Ink jet printing apparatus with handheld applicator
US6119866A (en) * 1998-07-15 2000-09-19 Hewlett-Packard Company Process and device for separation of wanted materials from product mixes which contain floating/absorbent material and metals with a ferromagnetic content
US6312117B1 (en) * 1998-09-03 2001-11-06 Hewlett-Packard Company Ink jet printer pen with extra fluid dispenser
US6383274B1 (en) * 1999-11-24 2002-05-07 Xerox Corporation Ink jet ink compositions and printing processes
WO2004069544A1 (fr) * 2003-02-07 2004-08-19 Close The Loop Technologies Pty Ltd Procede et appareil permettant de recuperer de l'encre de cartouches a jet d'encre
EP1947150A1 (fr) * 2005-09-14 2008-07-23 Canon Kabushiki Kaisha Encre de courrier, réservoir d encre de courrier, et dispositif et procédé d impression à jet d encre de courrier

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Derwent World Patents Index; AN 1997-043722, DWPI *
DATABASE WPI Derwent World Patents Index; Class A35, AN 2006-757022 *

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