Claims
- 1. A system for printing with a photochromic phase change ink comprising:a phase change ink jet printer; and a photochromic phase change ink composition comprising at least one polymeric and photochromic yellow phase change ink colorant with a chromophore having a polyoxyalkylene substituent and a carrier composition comprising a resin selected from a group consisting of a urethane resin, a mixed urethane/urea resin and mixtures thereof, and a mono-amide.
- 2. The system of claim 1 wherein the substituent comprises a carboxylic acid covalently bonded thereto.
- 3. The system of claim 1 wherein the substituent comprises a non-reactive ester covalently bonded thereto.
- 4. The system of claim 1 wherein the substituent comprises a amide derivative covalently bonded thereto.
- 5. A system for printing with a photochromic phase change ink and detecting a photochromic property of the ink comprising:a phase change ink jet printer having a print head for ejecting drop of molten ink and a media handling system to provide media to receive the ejected drops of molten ink, the ejected drops solidifying to form an image; an ink supply system for feeding solid phase change ink and melting it to a molten state for ejection from the print head; a photochromic phase change ink composition comprising at least one polymeric and photochromic phase change ink yellow colorant having a polyoxyalkylene substituted chromophore and a carrier composition comprising a resin selected from a group consisting of a urethane resin, a mixed urethane/urea resin and mixtures thereof; and a spectrophotometric detector configured to (1) determine a first absorption spectrum of the image, (2) subject the image to radiation, (3) determine a second absorption spectrum of the image and (4) determine a photochromic effect from a difference between the first and second absorption spectra.
- 6. The system of claim 5 wherein the polyoxyalkylene substituted chromophore further comprises a second substituent selected from the group consisting of a carboxylic acid, a non-reactive ester and an amide, the substituent covalently bonded to the polyoxyalkylene substituent.
- 7. A system for printing with a photochromic phase change ink comprising:a phase change ink jet printer having a print head for ejecting drops of molten ink and a media handling system to provide media to receive the ejected drops of molten ink; a photochromic phase change ink compositon comprising: at least one yellow polymeric and photochromic phase change ink colorant with a chromophore having polyoxyalklene substituent; and a phase change ink carrier composition comprising a resin selected from a group consisting of a urethane resin, a mixed urethane/urea resin and mixtures thereof, and a mono-amide.
Parent Case Info
This application is a division of 08/951,187, filed Oct. 1, 1997, now U.S. Pat. No. 6,022,909, which is continuation of 08/671,998 filed Jun. 28, 1996 now U.S. Pat. No. 5,827,918.
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Continuations (1)
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Number |
Date |
Country |
Parent |
08/671998 |
Jun 1996 |
US |
Child |
08/951187 |
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US |