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US 2019/0070878 A1Published application
Photopolymeric craft stamp indexing images and method of making
AssigneeChemence, Inc.
InventorJohn P. MANEIRA
Life of this patent
Estimating the term…
Abstract
An indexing image for craft stamps that is opaque to the eye but transparent to UV light is produced by printing a wavelength-specific solvent-based ink on the stamp substrate. This eliminates the step of printing a separate adhesive-backed indexing image sheet and applying it to the substrate.
Claims20
A method of making a craft stamp capable of producing a stamp image, said method comprising:
- printing an indexing image on a top surface of an actinic radiation-transmitting substrate, wherein the indexing image is configured to resemble the stamp image and wherein the indexing image is printed in an ink that is visible to a user and does not block ultra-violet radiation;
- positioning a masking film above the top surface of the substrate, the masking film comprising a masking image printed on a portion of the masking film, the masking image being configured to block ultra-violet radiation;
- positioning a relief film below a bottom surface of the substrate, the relief film comprising a relief image;
- shining polymerizing radiation through the masking film and relief film to form a stamp relief in the bottom surface of the substrate.
1 more element
A method of making a craft stamp with an indexing image printed on a top surface of the craft stamp, the method comprising:
- printing an indexing image directly on a top surface of an actinic radiation-transmitting substrate, the indexing image being printed in an ink that does not transmit visible wavelengths of light and does not block polymerizing radiation;
- using radiation to polymerize the substrate into the desired stamp shape after the indexing image is printed on the substrate.
A method of making a craft stamp, the method comprising:
- printing a masking image on a masking film;
- printing a stamp relief image on a relief film;
- printing an indexing image on a top surface of a substrate;
- positioning the relief film below the substrate;
- casting a layer of liquid photopolymer on top of the relief film;
- placing the bottom surface of the substrate in contact with the upper surface of the liquid photopolymer layer;
- positioning the masking film above the substrate;
- shining polymerizing radiation through the masking film to form a polymerized floor image in the liquid photopolymer;
- shining polymerizing radiation through the relief film to form a polymerized relief image in the liquid photopolymer between the polymerized floor image and the relief film;
- and
- removing the masking film and relief film.
8 more elements
Dependencies are inferred from the claim text.