EP0478171A2 - Tissu d'impression résistant aux impacts - Google Patents

Tissu d'impression résistant aux impacts Download PDF

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Publication number
EP0478171A2
EP0478171A2 EP91308192A EP91308192A EP0478171A2 EP 0478171 A2 EP0478171 A2 EP 0478171A2 EP 91308192 A EP91308192 A EP 91308192A EP 91308192 A EP91308192 A EP 91308192A EP 0478171 A2 EP0478171 A2 EP 0478171A2
Authority
EP
European Patent Office
Prior art keywords
ribbon
yarns
fabric
warp
fill
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Withdrawn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
EP91308192A
Other languages
German (de)
English (en)
Other versions
EP0478171A3 (en
Inventor
Philip Gordon Harris
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.)
Milliken Research Corp
Original Assignee
Milliken Research 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 Milliken Research Corp filed Critical Milliken Research Corp
Publication of EP0478171A2 publication Critical patent/EP0478171A2/fr
Publication of EP0478171A3 publication Critical patent/EP0478171A3/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J31/00—Ink ribbons; Renovating or testing ink ribbons
    • B41J31/02—Ink ribbons characterised by the material from which they are woven
    • B41J31/04—Ink ribbons characterised by the material from which they are woven woven from synthetic material

Definitions

  • This invention relates to a woven fabric, referred to as an impression fabric, which is used as a printing ribbon and has good print quality, long print life and resistance to damage from printing.
  • an impression printing ribbon has been a one by one plain weave of dense construction. Almost all impression fabric is made from nylon 6,6 yarns with a small amount made from nylon 6, cotton or silk.
  • the standard impression fabric construction for spools and cartridges has been a 4 mil thickness fabric made from 40 denier yarns in the warp and filling with about 170 warp yarns per inch and 115 fill yarns per inch.
  • Ribbon durability has been addressed in the market in a number of ways.
  • the number of warp yarns was increased from 170 to 212 ends/inch and the number of fill yarns was increased from 115 to 120 picks/inch. This construction improves impact resistance but not to the degree that the market requires. The additional yarns make this construction more expensive to produce.
  • a 5 mil thickness fabric with a 40 denier warp and 70 denier fill has been used for improved durability. This construction is well known for use on wide ribbon printers and improves impact resistance but not to the degree that the market requires. Significant filament damage occurs even to the larger 70 denier fill yarns.
  • U.S. patent 4,874,263 addresses the problem by construction of a twill weave. At low constructions (170 warp yarns and 115 fill yarns per inch), the weave is unsuitable for an impression fabric because the warp yarns are snagged by matrix print wires. At higher constructions (thread count about 400 yarns per square inch), ribbon durability is improved at significantly increased cost.
  • Fabric 10 for use as a typewriter, printer, etc. ribbon is represented.
  • Fabric 10 as is well known in the trade, consists of warp yarns 12 and weft or fill yarns 14 and is preferably woven on an air jet loom having a reed spread of 67.26 inches.
  • the warp and fill yarns are 70 denier, 34 filament nylon 6,6 with the fabric being woven with 106 warp yarns per inch and 106 fill yarns per inch. It is within the scope of the invention to vary the number of warp and/or fill yarns per inch ⁇ 20. In the preferred form of the invention the warp yarn is twisted and the fill yarn is textured.
  • the above preferred fabric is woven, it is scoured at pH 9.0 and at a temperature of 180°F with sodium carbonate and nonionic detergent and left mildly acidic by running it through a bath of dilute citric acid.
  • the fabric 10 is then dried on a tenter frame.
  • the resultant fabric had a weight of 2.2 ounces per square yard and a thickness of 5.0 mils.
  • the finished fabric had 120 ends/inch, 108 picks/inch and an ink capacity of 13.6 grams per square yard.
  • the fabric 10 is cut into ribbons of required size by a hot knife or other desired slitter.
  • the finished fabric may be slit to an appropriate width, inked, then cut to length and incorporated into printer ribbon cartridges, or typewriter ribbon spools or the like, such as the cartridge 16 shown in Fig. 2.
  • the ribbon is joined to itself in an endless loop by an ultrasonic weld.
  • Fig 2 illustrates the ribbon 18 which is formed in an endless loop and packed into the cartridge 16 in conventional fashion.
  • An ultrasonic weld is shown in exaggerated form at 20 and is also conventional.
  • the herein disclosed impression fabric has increased wear characteristics and reduced physical damage during printing compared to commercially available inked impression fabrics. At the same time the new fabric has maintained the print life and quality generally found in commercial products.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
EP19910308192 1990-09-24 1991-09-06 Impact resistant impression fabric Withdrawn EP0478171A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US58777190A 1990-09-24 1990-09-24
US587771 1990-09-24

Publications (2)

Publication Number Publication Date
EP0478171A2 true EP0478171A2 (fr) 1992-04-01
EP0478171A3 EP0478171A3 (en) 1992-10-28

Family

ID=24351144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910308192 Withdrawn EP0478171A3 (en) 1990-09-24 1991-09-06 Impact resistant impression fabric

Country Status (3)

Country Link
EP (1) EP0478171A3 (fr)
JP (1) JPH04234688A (fr)
CA (1) CA2051066A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2054264A (en) * 1934-05-22 1936-09-15 Jacob A L Moller Ribbon for typewriters and other machines
US3176820A (en) * 1962-11-08 1965-04-06 Karl L Griffin Synthetic and natural fiber inked ribbon substrate material
FR2141226A5 (en) * 1971-06-08 1973-01-19 Pelikan Werke Wagner Guenther Typewriter ribbons etc - made from mixt of smooth and textured or natural fibres
JPS61104882A (ja) * 1984-10-29 1986-05-23 Toyobo Co Ltd 印字鮮明性に優れた耐熱性インクリボン
JPS61284476A (ja) * 1985-06-11 1986-12-15 Toray Ind Inc インクリボン
JPS62286784A (ja) * 1986-06-05 1987-12-12 Teijin Ltd コンピユ−タ−印字リボン用織物

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2054264A (en) * 1934-05-22 1936-09-15 Jacob A L Moller Ribbon for typewriters and other machines
US3176820A (en) * 1962-11-08 1965-04-06 Karl L Griffin Synthetic and natural fiber inked ribbon substrate material
FR2141226A5 (en) * 1971-06-08 1973-01-19 Pelikan Werke Wagner Guenther Typewriter ribbons etc - made from mixt of smooth and textured or natural fibres
JPS61104882A (ja) * 1984-10-29 1986-05-23 Toyobo Co Ltd 印字鮮明性に優れた耐熱性インクリボン
JPS61284476A (ja) * 1985-06-11 1986-12-15 Toray Ind Inc インクリボン
JPS62286784A (ja) * 1986-06-05 1987-12-12 Teijin Ltd コンピユ−タ−印字リボン用織物

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 286 (M-521)(2342) 27 September 1986 & JP-A-61 104 882 ( TOYOBO CO LTD ) 23 May 1986 *
PATENT ABSTRACTS OF JAPAN vol. 11, no. 155 (M-589)(2602) 20 May 1987 & JP-A-61 284 476 ( TORAY IND INC ) 15 December 1986 *
PATENT ABSTRACTS OF JAPAN vol. 12, no. 171 (M-700)(3018) 21 May 1988 & JP-A-62 286 784 ( TEIJIN ) 12 December 1987 *

Also Published As

Publication number Publication date
CA2051066A1 (fr) 1992-03-25
JPH04234688A (ja) 1992-08-24
EP0478171A3 (en) 1992-10-28

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