Avery Dennison Corporation

Other

Robert Valadez

Ghanshyam H Popat

Raymond G Kubit

Shiaonung J Su

Fred N Miekka

Thomas Mammen

H Paul Barker

Frederick N Miekka

Gustav Allen Ray

The present invention is directed to an ink composition resistant to solvent evaporation which may be employed for use in retractable permanent marker pens. Generally, the ink composition of the present invention comprises n-propanol, a pyrrolidone, a tryglyceride, a terpene phenolic resin, and at least one colorant to yield a detectable color when the ink composition is applied to a writable substrate. Additionally, the ink composition may further comprise at least one of polyether modified dimethylpolysiloxane copolymer and silicone glycol surfactant. Optionally, the ink composition may further comprise water.

Ink composition resistant to solvent evaporation

In general, a smear-resistant ink composition according to the present invention comprises: (1) water; (2) at least one glycol selected from the group consisting of diethylene glycol, ethylene glycol, glycerol, and propylene glycol; (3) a pyrrolidone selected from the group consisting of 2-pyrrolidone and 3-pyrrolidone; and (4) at least one colorant that produces a detectable fluorescent color when the ink composition is applied to paper. Preferably, the pyrrolidone is 2-pyrrolidone. In one preferred embodiment, the at least one glycol comprises diethylene glycol and ethylene glycol. In another preferred embodiment, the at least one glycol comprises diethylene glycol, ethylene glycol, and propylene glycol. The composition can comprise other ingredients, such as a basic color stabilizer, a resin, a resin modifier that is a carbonate salt, a biocide, and a nonionic surfactant. The colorants can be formulated to produce a pink, yellow, blue, green, purple, or orange color; other colors are possible.

Smear-resistant ink compositions

An image transfer assembly ( ) receives an image printed from an ink jet printer. The assembly ( ) provides a device to transfer the printed image onto an image-receiving surface. The assembly ( ) has a flexible substrate ( ) on one side, and an upper surface ( ) on the other side that is substantially permeable to ink jet printer ink and that is non-tacky prior to printing. The assembly ( ) has an adhesive or polymer layer ( ) in between the upper surface ( ) and the flexible substrate ( ). After printing with a water-based ink jet printer ink, the user may apply the assembly ( ) to a substrate, such as a window or other surface, and remove the flexible substrate ( ), thereby leaving the layer ( ) that bears the image on the substrate. In one of several alternative embodiments, the layer ( ) is divided into discrete zones that are separated from one another along boundaries.

Water-activated polymers and adhesive image transfer technique

An ink jet printer image transfer sheet having a non-porous flexible base layer, an ink absorbing adhesive layer coated onto said base layer and an ink jet printing ink porous detackifying outer layer. A method for transferring an ink jet printed image to a substrate.

Adhesive image transfer technique

Water dispersible, hydrophilic, repulpable, water-activatable, acrylic polymers are provided. The polymers are non-tacky when dry, but become tacky when wet, and exhibit high peel strength on a variety of substrates. The polymers comprise an acrylic-based polymer prepared by emulsion polymerization of 40 to 70% by weight of one or more alkyl acrylates, the alkyl group of which has from 4 to 8 carbon atoms; 10 to 20% by weight of methacrylate; 2 to 15% by weight of vinyl acetate; and 10 to 25 percent by weight of methacrylic acid and/or acrylic acid; and a positive amount up to about 30% by weight of methyl methacrylate. Some embodiments also include a short chain hydroxyalkyl methacrylate. Also provided are ink jet-imprintable, water-activatable constructions comprising a layer of water-activatable polymer, coated on a release liner or other surface. Optionally, a water-resistant transparent film layer is disposed between the polymer and release liner or used in place of the release liner. The constructions are suitable for use in ink jet printers and can be used to transfer an image to a substrate.

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Azusa, CA, United States of America

Robert Valadez