CH679153A5 - Ink with high UV absorption - contains substance with high extinction coefft. for light with wavelength of 200 to 400 nanometres - Google Patents

Ink with high UV absorption - contains substance with high extinction coefft. for light with wavelength of 200 to 400 nanometres Download PDF

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Publication number
CH679153A5
CH679153A5 CH1000/90A CH100090A CH679153A5 CH 679153 A5 CH679153 A5 CH 679153A5 CH 1000/90 A CH1000/90 A CH 1000/90A CH 100090 A CH100090 A CH 100090A CH 679153 A5 CH679153 A5 CH 679153A5
Authority
CH
Switzerland
Prior art keywords
ink
light
high extinction
absorption
substance
Prior art date
Application number
CH1000/90A
Other languages
German (de)
Inventor
Felix Dipl-Ing Stampfli
Original Assignee
Fs Inventor Ag
Stampfli Felix
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 Fs Inventor Ag, Stampfli Felix filed Critical Fs Inventor Ag
Priority to CH1000/90A priority Critical patent/CH679153A5/en
Publication of CH679153A5 publication Critical patent/CH679153A5/en

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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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/0073—Masks not provided for in groups H05K3/02 - H05K3/46, e.g. for photomechanical production of patterned surfaces
    • H05K3/0076—Masks not provided for in groups H05K3/02 - H05K3/46, e.g. for photomechanical production of patterned surfaces characterised by the composition of the mask
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/02—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
    • H05K3/06—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding the conductive material being removed chemically or electrolytically, e.g. by photo-etch process
    • H05K3/061—Etching masks
    • H05K3/065—Etching masks applied by electrographic, electrophotographic or magnetographic methods

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  • 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

Ink or marking ink is made contg. a colourless or coloured substance (I) which has a high extinction coefft. for light with a wavelength of 200-400nm to increase its absorption of UV light. Pref. (I) is a cpd. with conjugated double bonds so that UV excites pi-pi-star transitions of the double bond electrons to give a high extinction coefft. for light at wavelengths of 200-400nm. (I) is esp. an anthraquinone deriv., partic. alizarin or alizarin red. USE/ADVANTAGE - The inks are suitable for the prodn. of graphics which are to be copied using UV copiers, and esp. for drawing of plotted patterns for the prodn. of etched electronic circuit boards using photographic transfer methods.

Description

       

   
 



  Die Erfindung betrifft Tinte oder Tusche, definiert in Patentanspruch 1. 



  Die herkömmlichen Tinten und Tuschen sind wegen mangelnder Deckkraft nicht immer für Vorlagen geeignet, die mit ultraviolettem Licht photographisch kopiert werden. 



  Insbesondere können mit üblicher Tusche geplottete Vorlagen nicht zur Herstellung von geätzten Elektronik-Leiterplatten verwendet werden, da die Deckfähigkeit von ca 90% zur photographischen Übertragung ungenügend ist. 



  Die vorliegende Erfindung behebt diesen Mangel, indem zur Absorbtion des ultravioletten Lichtes der Tinte ein spezieller UV-Filter zugefügt wird. 



  Eine hohe UV-Absorption kann durch anregbare PI-PI-STERN-Übergänge von Doppelbindungselektronen in der zuzufügenden Substanz erreicht werden. 



  Als nacharbeitbares Beispiel sei das Zufügen von Alizarin und Alizarinrot zu handelsüblicher Zeichentusche aufgeführt. 



   
 



  The invention relates to ink or ink, defined in claim 1.



  The conventional inks and inks are not always suitable for originals that are photographically copied with ultraviolet light due to their lack of opacity.



  In particular, templates plotted with conventional ink cannot be used to produce etched electronic circuit boards, since the opacity of approx. 90% is insufficient for photographic transmission.



  The present invention overcomes this deficiency by adding a special UV filter to absorb the ultraviolet light of the ink.



  High UV absorption can be achieved by stimulating PI-PI-STAR transitions of double bond electrons in the substance to be added.



  As a reworkable example, the addition of alizarin and alizarin red to commercially available ink is listed.

Claims (3)

1. Tinte oder Tusche, gekennzeichnet dadurch, dass zur Absorption von ultraviolettem Licht eine farblose oder farbige Substanz enthalten ist, die einen hohen Extinktionskoeffizienten für Licht mit Wellenlängen von 200 nm bis 400 nm aufweist.         1. ink or ink, characterized in that for the absorption of ultraviolet light, a colorless or colored substance is contained which has a high extinction coefficient for light with wavelengths from 200 nm to 400 nm. 2. Substanz für Tinte oder Tusche nach Patentanspruch 1, gekennzeichnet dadurch, dass die Molekülstruktur konjugierte Doppelbindungen enthält, so dass durch das ultraviolette Licht PI-PI-STERN-Übergänge der Doppelbindungselektronen angeregt und somit ein hoher Extinktionskoeffizient für Licht bei Wellenlängen von 200 nm bis 400 nm erreicht wird. 2. Substance for ink or ink according to claim 1, characterized in that the molecular structure contains conjugated double bonds, so that PI-PI-STAR transitions of the double bond electrons are excited by the ultraviolet light and thus a high extinction coefficient for light at wavelengths from 200 nm to 400 nm is reached. 3. Substanz nach Patentanspruch 2, gekennzeichnet dadurch, dass es sich um einen Anthrachinonabkömmling handelt. 1. Tinte oder Tusche, gekennzeichnet dadurch, dass zur Absorption von ultraviolettem Licht eine farblose oder farbige Substanz enthalten ist, die einen hohen Extinktionskoeffizienten für Licht mit Wellenlängen von 200 nm bis 400 nm aufweist. 2. Substanz für Tinte oder Tusche nach Patentanspruch 1, gekennzeichnet dadurch, dass die Molekülstruktur konjugierte Doppelbindungen enthält, so dass durch das ultraviolette Licht PI-PI-STERN-Übergänge der Doppelbindungselektronen angeregt und somit ein hoher Extinktionskoeffizient für Licht bei Wellenlängen von 200 nm bis 400 nm erreicht wird. 3. Substanz nach Patentanspruch 2, gekennzeichnet dadurch, dass es sich um einen Anthrachinonabkömmling handelt. 3. Substance according to claim 2, characterized in that it is an anthraquinone derivative.        1. ink or ink, characterized in that for the absorption of ultraviolet light, a colorless or colored substance is contained which has a high extinction coefficient for light with wavelengths from 200 nm to 400 nm. 2. Substance for ink or ink according to claim 1, characterized in that the molecular structure contains conjugated double bonds, so that PI-PI-STAR transitions of the double bond electrons are excited by the ultraviolet light and thus a high extinction coefficient for light at wavelengths from 200 nm to 400 nm is reached. 3. Substance according to claim 2, characterized in that it is an anthraquinone derivative.  
CH1000/90A 1990-03-26 1990-03-26 Ink with high UV absorption - contains substance with high extinction coefft. for light with wavelength of 200 to 400 nanometres CH679153A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH1000/90A CH679153A5 (en) 1990-03-26 1990-03-26 Ink with high UV absorption - contains substance with high extinction coefft. for light with wavelength of 200 to 400 nanometres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1000/90A CH679153A5 (en) 1990-03-26 1990-03-26 Ink with high UV absorption - contains substance with high extinction coefft. for light with wavelength of 200 to 400 nanometres

Publications (1)

Publication Number Publication Date
CH679153A5 true CH679153A5 (en) 1991-12-31

Family

ID=4200116

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1000/90A CH679153A5 (en) 1990-03-26 1990-03-26 Ink with high UV absorption - contains substance with high extinction coefft. for light with wavelength of 200 to 400 nanometres

Country Status (1)

Country Link
CH (1) CH679153A5 (en)

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