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    RESISTIVE RIBBON FOR HEAT TRANSFER PRINT
    2.
    发明专利
    RESISTIVE RIBBON FOR HEAT TRANSFER PRINT 失效

    公开(公告)号：JPS61254376A

    公开(公告)日：1986-11-12

    申请号：JP1599086

    申请日：1986-01-29

    Applicant: IBM

    Inventor： AVIRAM ARI ,  SHIH KWANG K

    IPC: B41J31/00 ,  B41J31/02 ,  B41J31/05 ,  B41M5/24 ,  B41M5/26 ,  B41M5/382 ,  B41M5/40 ,  B41M5/41

    Abstract: The invention relates to a resistive ribbon (10) for use in a resistive ribbon thermal transfer printing process, of the type comprising a resistive layer (12) which produces localised heating to effect printing when an electric current is passed therethrough and which has a non-linear current-voltage characteristic occurring at a knee voltage, an ink layer (16) comprising an ink which is transferable when heated by the localised heating, and a metal layer (14) located between between the resistive layer (12) and the ink layer (16) and along which the electrical current passes. … A ribbon according to the invention is characterised by the inclusion of an electrical interface layer (18) located between the resistive layer (12) and the metal layer (14) and serving to increase the interface resistance between the resistive layer (12) and the metal layer (14) and to increase the knee voltage of the current-voltage characteristic.

    COLOR-ON-DEMAND RIBBON PRINTING
    4.
    发明专利
    COLOR-ON-DEMAND RIBBON PRINTING 未知

    公开(公告)号：CA1225872A

    公开(公告)日：1987-08-25

    申请号：CA478627

    申请日：1985-04-09

    Applicant: IBM

    Inventor： AVIRAM ARI ,  DOVE DEREK B ,  LANE RAMON

    IPC: B41J2/325 ,  B41J2/33 ,  B41J27/02 ,  B41J27/14 ,  B41J31/14 ,  B41J35/16 ,  B41J3/20

    Abstract: This printing apparatus and technique incorporates a color transfer station to impart a desired color to a fusible ink layer on a ribbon. The color transfer station is located between a supply reel providing the ribbon for printing, and the location where actual printing occurs. This color transfer technique is particularly suitable for use in resistive ribbon thermal transfer printing, where economical use of the ribbon is mandatory. The structure for transferring color to the ink layer of the ribbon utilizes wicks, felt-coated rollers, nozzles, etc., to being a selected colorant solution into contact with the ink layer of the ribbon, in accordance with the color desired for printing. Y0983-171

    THERMAL TRANSFER PRINTING
    7.
    发明专利
    THERMAL TRANSFER PRINTING 未知

    公开(公告)号：DE3377345D1

    公开(公告)日：1988-08-18

    申请号：DE3377345

    申请日：1983-11-22

    Applicant: IBM

    Inventor： AVIRAM ARI ,  SHIH KWANG

    IPC: B41M5/392 ,  B41J31/00 ,  B41J31/02 ,  B41M5/26 ,  B41M5/382

    Abstract: The specification discloses the use of chemical heat amplification in thermal transfer printing. Accordingly some of the heat necessary for melting and transferring ink from a solid fusible layer in a heat ink transfer ribbon to a receiving medium is provided by an exothermic chemical reaction. This chemical reaction occurs in an exothermic material that is located in the ink layer or in another layer of the ink transfer ribbon. The exothermic reaction reduces the amount of the input power which must be applied e.g. electrically or electromagnetically. Examples of suitable exothermic materials are those which will provide heat within the operative temperature range of the ink, and include nonaromatic azo compounds, peroxides, and strained valence compounds, such as monomers, dimers, trimers, of the type which change their chemical bonding when they decompose to either a valance isomer or break into a number of molecular species.

    CHEMICAL HEAT AMPLIFICATION IN THERMAL TRANSFER PRINTING
    8.
    发明专利
    CHEMICAL HEAT AMPLIFICATION IN THERMAL TRANSFER PRINTING 未知

    公开(公告)号：CA1217636A

    公开(公告)日：1987-02-10

    申请号：CA470463

    申请日：1984-12-18

    Applicant: IBM

    Inventor： SACHDEV KRISHNA G ,  SACHDEV HARBANS S ,  AVIRAM ARI ,  WIZNER MARK A

    IPC: B41M5/392 ,  B41J31/00 ,  B41J31/02 ,  B41M5/26 ,  G01D15/10

    Abstract: IMPROVED CHEMICAL HEAT AMPLIFICATION IN THERMAL TRANSFER PRINTING Chemical heat amplification is provided in thermal transfer printing, wherein some of the heat necessary for melting and transferring ink from a solid fusible layer in a ribbon to a receiving medium is provided by an exothermic reaction. This chemical reaction is due to an exothermic material that is located in the ink layer, or in another layer of the ink bearing ribbon. The exothermic reaction reduces the amount of the input power which must be applied either electrically or with electromagnetic waves. Examples of suitable exothermic materials are those which will provide heat within the operative temperature range of the ink, and include hydrazone derivatives which are substantially colorless, and have a molecular weight in the approximate range 150-650.

    METAL-SEMICONDUCTOR RESISTIVE RIBBON FOR THERMAL TRANSFER PRINTING AND METHOD FOR USING
    9.
    发明专利
    METAL-SEMICONDUCTOR RESISTIVE RIBBON FOR THERMAL TRANSFER PRINTING AND METHOD FOR USING 未知

    公开(公告)号：CA1191344A

    公开(公告)日：1985-08-06

    申请号：CA419826

    申请日：1983-01-19

    Applicant: IBM

    Inventor： AVIRAM ARI ,  SHIH KWANG K

    IPC: B41J31/00 ,  B41M5/26 ,  B41M5/382

    Abstract: METAL-SEMICONDUCTOR RESISTIVE RIBBON FOR THERMAL TRANSFER PRINTING AND METHOD FOR USING A resistive ribbon for thermal transfer printing comprising a support layer bearing a fusible ink composition and a thin aluminum layer upon which is deposited a resistive layer of off-stoichiometric metal silicide is disclosed. Also disclosed are appropriate power sources for using the resistive ribbon, as well as methods for non-impact printing employing the disclosed ribbon.

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