EP0681924A1 - Flüssigkeitsschreibgerät, insbesondere auf Lösemittelbasis - Google Patents

Flüssigkeitsschreibgerät, insbesondere auf Lösemittelbasis Download PDF

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Publication number
EP0681924A1
EP0681924A1 EP95490019A EP95490019A EP0681924A1 EP 0681924 A1 EP0681924 A1 EP 0681924A1 EP 95490019 A EP95490019 A EP 95490019A EP 95490019 A EP95490019 A EP 95490019A EP 0681924 A1 EP0681924 A1 EP 0681924A1
Authority
EP
European Patent Office
Prior art keywords
ink
buffer tank
surface tension
reservoir
tip
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.)
Granted
Application number
EP95490019A
Other languages
English (en)
French (fr)
Other versions
EP0681924B1 (de
Inventor
Philippe Chavatte
José Duez
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.)
Conte SA
Original Assignee
Conte 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 Conte SA filed Critical Conte SA
Publication of EP0681924A1 publication Critical patent/EP0681924A1/de
Application granted granted Critical
Publication of EP0681924B1 publication Critical patent/EP0681924B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K8/00—Pens with writing-points other than nibs or balls
    • B43K8/02—Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material
    • B43K8/04—Arrangements for feeding ink to writing-points
    • B43K8/06—Wick feed from within reservoir to writing-points

Definitions

  • the present invention relates to a writing article with liquid ink, that is to say in which the ink is in the free state, not being trapped in a fibrous reservoir.
  • This article comprises a reservoir for liquid ink, a tip ensuring by capillary action the transfer of the ink from the reservoir to the writing head proper, said writing head possibly being the free end of the point. transfer and finally a buffer tank intended to absorb and restore the excess ink in the event of variation of the conditions of use of the article.
  • the reservoir which contains the ink is not isolated from the ambient air, but from the air reaches it via the transfer point. Therefore, a variation in the conditions of use, in particular the increase in the pressure of the air contained in the tank due to the heating of the air results in an abnormal inflow of ink in the transfer point and may cause stains or drips when the item is uncapped.
  • Different embodiments of the buffer tank have already been proposed. In document EP.380696, this is a molded part, comprising comb-shaped radial slots and longitudinal slots bringing the radial slots into communication with the hollowed-out central part in contact with the transfer point.
  • this buffer tank is only defined as being a capillary storage element the capillarity of which is on average lower than the capillarity of the transfer point on average, at least at the junction orifice between the transfer tip and the liquid ink tank.
  • this buffer tank is made of a porous material and / or fibrous.
  • the buffer tank is in the form of at least one compact block adjusted loosely around the transfer point. It may especially be a porous hydrophobic material based on microspheres, obtained by thermofusion of microspheres of one or more thermoplastic materials, in particular microspheres of polypropylene or polyethylene.
  • the problem which the applicant seeks to solve is to propose a writing article of the aforementioned type which can be used with inks intended for writing on non-absorbent supports, metallic or plastic, for example on dry erase boards.
  • the ink which is used is a solvent-based ink or an aqueous ink comprising a large quantity of surfactants allowing the wettability of the support.
  • the ink is an ink, having a surface tension between 21 and 25mN / m, intended to be used on supports non-absorbent, metallic or plastic, and in that the material constituting the buffer tank has a surface tension which is lower than that of the ink by a determined difference, said tension being sufficient for the tank to be able to absorb and restore the excess ink from the transfer tip, by capillary action, in the event of a variation in the pressure prevailing in the reservoir.
  • the difference determined between the surface tensions of the material constituting the buffer tank and the ink is preferably less than or equal to 4mN / m.
  • the buffer tank is made of a porous or fibrous material, in particular polypropylene or polyester, the surface tension of which has been lowered by deposition of an agent having a surface tension of less than 21 mN / m.
  • a porous or fibrous material in particular polypropylene or polyester
  • solvent inks or aqueous inks comprising a high dose of surfactant can be achieved from the buffer tanks as described in the prior documents but which have been subjected to a treatment intended to produce a deposit of surface of an agent modifying the initial surface tension of the buffer tank.
  • This treatment may in particular consist in a fluorination treatment, for example with plasma.
  • a fluorination treatment for example with plasma.
  • this deposit may be the deposition of a polysiloxane.
  • this deposit can be obtained by impregnating said fibers with a polysiloxane bath, padding and drying.
  • the subject of the present invention is a writing article with liquid ink of the type according to which the ink, which is contained in a reservoir, is transferred from said reservoir to the writing head, by capillarity, in a transfer point. .
  • the writing article also includes a buffer tank in which the excess ink, in the event of variations pressure in the tank, can migrate from the transfer point and then be restored when the conditions of use return to normal.
  • the writing article 1 consists of a substantially cylindrical hollow body 2, the bottom 3 of which is closed, the front part 4 of which is terminated by a cone 5 comprising a central orifice 6, and the rear part 7 of which acts as a reservoir 8 for liquid ink 9.
  • Said reservoir 8 is closed by an internal partition 10 which has a central orifice 11.
  • Article 1 also consists of a cylindrical transfer tip 12, made of a material capable of ensuring the transfer of the ink by capillary action. It may especially be a felt obtained from acrylic fibers or compacted polyester fibers.
  • This tip 12 is positioned along the longitudinal axis of symmetry of the body 2. Its rear end 12 a is pressed slightly into the central orifice 11 of the partition 10 so that the tightness of the reservoir 8 is ensured, but without crushing of this end 12 a so that there can be circulation of ink and air by the tip 12.
  • a tubular shoulder 14 of the internal partition 10 surrounds the central orifice 11 through which the tip 12 passes.
  • This tubular shoulder 14 makes it possible to obtain a perfect seal of the reservoir 8 without crushing the end 12 a of the tip 12.
  • the front end 12 b of said point 12 is cut in a bevel, in a warhead or in another configuration it forms the writing head and is centered in the central orifice 6 of the conical part 5 of the body 2.
  • This centering is preferably obtained by lugs 15 distributed over the periphery of the internal wall of the neck 16 extending the cone 5; said lugs 15 delimit free spaces around the front end 12 b of the tip so as to allow air circulation between the inside and the outside of the article 1.
  • the article 1 finally consists of a buffer tank 13 which surrounds the transfer point 12 in the internal part of the body 2 which is between the tank 8 and the cone 5.
  • the buffer tank 13 has the function of absorbing and restoring the excess ink reaching the transfer tip 12 in the event of variations in the conditions of use of the article 1.
  • the ink 9 which is contained in the reservoir 8 and which is in contact with the rear end 12 a of the tip 12 is absorbed and migrates by capillary action in the tip 12 to its front end 12 b .
  • the ink consumed by the writing head is gradually replaced by the ink coming from the reservoir 8.
  • a pressure balance is established between the air contained in the reservoir 8 and the air prevailing in the rest of body 2.
  • this excess ink would migrate to the writing head 12 b and cause an abnormal supply of the article 1, capable of forming spots or streaks on the writing medium. Thanks to the presence of the buffer tank 13, this excess ink does not reach the writing head 12b ; by capillarity, the excess ink diffuses into the buffer tank 13 in contact with the capillaries of the tip 12, until the pressure balance is restored. Then, when the article 1 is reused, the ink which is consumed by the writing head 12 b preferably comes from the buffer tank 13.
  • the buffer tank 13 is in the form of a compact block adjusted without tightening around of the tip 12, in an open pore material, of high porosity. It can also be a fibrous material or a buffer tank consisting of a molded part, with radial slots in the form of combs and longitudinal slots bringing the radial slots into communication with the hollowed-out central part in contact with the transfer point, in accordance with document EP.380696.
  • the aim of the present invention is to be able to use such an article 1 to write on non-absorbent supports of the dry-erase whiteboard type or on metallic or plastic supports. It is known that in this case the ink which is used must have sufficient wettability with respect to the support so that there is a satisfactory marking. Solvent-based inks or aqueous inks containing surfactants which modify their wettability with respect to such supports are then used.
  • the surface tension of the inks used for such supports was within a range of 21 to 25mN / m.
  • the writing article 1 which has been described above has hitherto been used only for aqueous inks, that is to say for writing on absorbent supports.
  • the aim of the present invention is to modify said writing article 1 so as to allow its use on non-absorbent supports or metallic or plastic supports.
  • the ink 9 is an ink which has a surface tension comprised between 21 and 25mN / m and on the other hand the buffer tank 13 has a surface tension which is lower than that of the ink.
  • the difference between the surface tension of the material constituting the buffer tank 13 and the surface tension of the ink 9 is such that the buffer tank can absorb and restore the excess ink coming from the transfer tip 12, by capillarity, in the event of variations in the pressure prevailing in the tank.
  • the determined gap between the surface tensions of the material making up the buffer tank and the ink is equal to or less than 4mN / m.
  • this reservoir fills with ink even when the article is used under normal pressure and temperature.
  • the buffer tank 13 fulfills its function, that is to say does not absorb the ink 9 coming from the tip 12 unless the variation in the pressure prevailing in the reservoir 8.
  • This fluorination treatment has the effect of depositing a thin layer of fluorine on the surface of the polypropylene constituting the buffer reservoir, which lowers the surface tension of the latter until it is, for example, less than 21mN / m.
  • the surface tension of the buffer tank 13 must be lower than that of the ink 9 contained in the tank 8. However, it must not be too low insofar as in this case the ink 9 could no longer migrate inside. of the buffer tank 13 even in the event of a pressure variation prevailing in the tank 8. The buffer tank 13 could then no longer fulfill the function assigned to it. According to the applicant, the difference between the surface tension of the buffer tank and that of the ink should not exceed 4mN / m.
  • the buffer tank 13 can have a differentiated surface tension throughout its volume.
  • this variation in surface tension can take the form of a buffer tank 13 composed of a modular assembly, in the longitudinal direction with respect to the transfer tip 12.
  • the surface tension of the buffer tank is higher near the tank 8 than near the central outlet orifice of the transfer point so as to absorb the excess ink preferably appear on the side of the reservoir 8.
  • the transfer tip 12 is in two parts connected to one another, by means of connection.
  • the connection must allow the transfer rod to fulfill its function of diffusing the ink 9 from the reservoir 8 to the writing tip, despite the dissociation of the latter into two parts 12 ', 12''similarly nature or different nature.
  • the first part 12 ' has its rear end 12' a which opens into the reservoir 8 and the second part 12 '' has its front end 12 '' b which forms a writing point and opens out of the body 2.
  • the buffer tank 13 is in contact with the first part 12 '.
  • the first part 12 ′ consists of a capillary rod.
  • the second part is made up of a writing or marking point; whatever its nature: extruded tip, roller tip, feather, felt tip, acrylic or polyester fiber tip.
  • connection of the front end 12'c of the first part 12 'and the rear end 12''c of the second part 12' ' is for example obtained by adding adhesive 17 (FIG. 2A) or by welding or by means of a sheath 18 (FIG. 2B) welded or not or via a connection piece 19 made of hydrophilic fiber or of a porous hydrophilic capillary material.
  • the present invention is not limited to the preferred embodiment which has been described by way of non-exhaustive example.
  • a buffer tank such as that which is disclosed in document EP.380696
  • an adequate treatment in particular a plasma fluorination

Landscapes

  • Pens And Brushes (AREA)
  • Recording Measured Values (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
EP95490019A 1994-05-11 1995-05-10 Flüssigkeitsschreibgerät, insbesondere auf Lösemittelbasis Expired - Lifetime EP0681924B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9406026A FR2719806B1 (fr) 1994-05-11 1994-05-11 Article d'écriture à encre liquide, notamment à base de solvant.
FR9406026 1994-05-11

Publications (2)

Publication Number Publication Date
EP0681924A1 true EP0681924A1 (de) 1995-11-15
EP0681924B1 EP0681924B1 (de) 1998-04-08

Family

ID=9463278

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95490019A Expired - Lifetime EP0681924B1 (de) 1994-05-11 1995-05-10 Flüssigkeitsschreibgerät, insbesondere auf Lösemittelbasis

Country Status (11)

Country Link
US (1) US5971646A (de)
EP (1) EP0681924B1 (de)
JP (1) JP3482032B2 (de)
AT (1) ATE164807T1 (de)
BR (1) BR9502011A (de)
CA (1) CA2148902C (de)
DE (1) DE69501976T2 (de)
DK (1) DK0681924T3 (de)
ES (1) ES2119343T3 (de)
FR (1) FR2719806B1 (de)
RU (1) RU2127672C1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6416242B1 (en) * 1993-11-12 2002-07-09 Dataprint R. Kaufmann Gmbh Efficient fluid dispensing utensil
DE19529865C2 (de) 1995-08-14 2002-02-28 Kaufmann R Dataprint Gerät zum Auftragen von Flüssigkeiten auf eine Unterlage mittels eines Auftragselements
US6503965B1 (en) * 2000-08-24 2003-01-07 Bic Corporation Solvent-based non-fluorescent ink for writing instruments based upon pigment dispersions in non-aqueous solvents
DE60226792D1 (de) * 2001-03-26 2008-07-03 Sanford Lp Druckregulierte freie Tintenzuführung
US6457892B1 (en) 2001-04-20 2002-10-01 Avery Dennison Corporation Writing instrument having a capillary hole through the container
US6637965B1 (en) 2001-06-22 2003-10-28 Avery Dennison Corporation Writing instrument having a reservoir between a tip and a capillary storage
US6503015B1 (en) * 2001-08-30 2003-01-07 Jakks Pacific, Inc. Marker pen
KR20050044520A (ko) * 2001-11-19 2005-05-12 샌포드, 엘.피. 금속 잉크 및 모세관형 마커
CN100396740C (zh) * 2002-04-01 2008-06-25 桑福德有限合伙人公司 溶剂体系和由该溶剂体系制备的墨汁
US7044675B2 (en) * 2002-12-10 2006-05-16 Bic Corporation Leak resistant writing instrument
US7481593B2 (en) * 2003-08-19 2009-01-27 Sanford, L.P. Combination hydrophobic/hydrophilic filters/reservoirs for controlling fluid flow
US7467907B2 (en) 2003-08-19 2008-12-23 Sanford, L.P. Valve mechanisms for paint or ink brush with integrated reservoir
US20050202386A1 (en) * 2004-03-15 2005-09-15 Jehan Clements Flip-over storytelling book publishing system, method, and kit
US7137903B2 (en) 2004-04-21 2006-11-21 Acushnet Company Transitioning hollow golf clubs
JP2005334648A (ja) 2004-04-21 2005-12-08 Acushnet Co 変移する中空タイプのゴルフクラブ
KR100932571B1 (ko) 2004-09-14 2009-12-17 파일롯트 잉크 가부시키가이샤 직액식 필기구
AR056792A1 (es) * 2005-11-12 2007-10-24 Unilever Nv Dispensador capilar
CN101379149A (zh) * 2006-01-31 2009-03-04 东海染工株式会社 标记用油墨
US8696228B1 (en) * 2010-04-23 2014-04-15 Hairmarker Llc Cosmetic marker
US9163153B2 (en) 2013-03-15 2015-10-20 Sanford, L.P. Metallic ink composition and writing instrument containing same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2528361A1 (fr) * 1982-03-16 1983-12-16 Parker Pen Co Instrument d'ecriture et son procede de fabrication
EP0516538A1 (de) * 1991-05-27 1992-12-02 Conte S.A. Flüssigkeitschreibgerät mit einem mikroporösen Pufferbehälter
DE4231978A1 (de) * 1992-09-24 1994-03-31 Dataprint Datendrucksysteme R Druckflüssigkeitsversorgungssystem für Druckaggregate mit in einem Behälter frei aufgenommener Druckflüssigkeit

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
US3501225A (en) * 1968-07-19 1970-03-17 Textron Inc Fountain pen
FR2439226A1 (fr) * 1978-10-20 1980-05-16 Sakura Color Prod Corp Composition pour encre effacable pour l'ecriture sur une surface impenetrable
JPS604574A (ja) * 1983-06-22 1985-01-11 Sakura Color Prod Corp 筆記板用インキ組成物
JPS6218483A (ja) * 1985-07-16 1987-01-27 Toyo Soda Mfg Co Ltd 筆記板用インキ組成物
JPS63300708A (ja) * 1987-05-30 1988-12-07 益山興業株式会社 化粧料塗布具
JP3049456B2 (ja) * 1992-03-31 2000-06-05 オリヱント化学工業株式会社 筆記板用インキ組成物
US5290116A (en) * 1992-06-23 1994-03-01 Chang Shin Ju D Flow control for writing instruments

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2528361A1 (fr) * 1982-03-16 1983-12-16 Parker Pen Co Instrument d'ecriture et son procede de fabrication
EP0516538A1 (de) * 1991-05-27 1992-12-02 Conte S.A. Flüssigkeitschreibgerät mit einem mikroporösen Pufferbehälter
DE4231978A1 (de) * 1992-09-24 1994-03-31 Dataprint Datendrucksysteme R Druckflüssigkeitsversorgungssystem für Druckaggregate mit in einem Behälter frei aufgenommener Druckflüssigkeit

Also Published As

Publication number Publication date
RU2127672C1 (ru) 1999-03-20
JP3482032B2 (ja) 2003-12-22
DE69501976D1 (de) 1998-05-14
ES2119343T3 (es) 1998-10-01
BR9502011A (pt) 1995-12-12
US5971646A (en) 1999-10-26
JPH07318377A (ja) 1995-12-08
EP0681924B1 (de) 1998-04-08
CA2148902C (en) 2006-02-21
CA2148902A1 (en) 1995-11-12
DE69501976T2 (de) 1998-11-05
RU95107148A (ru) 1996-12-27
FR2719806A1 (fr) 1995-11-17
ATE164807T1 (de) 1998-04-15
DK0681924T3 (da) 1999-01-25
FR2719806B1 (fr) 1996-08-02

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