Abstract: Derivatized Arabinogalactan can be utilized in a variety of compositions to impart functionality without imparting negative rheological affects when the amount of the derivatized Arabinogalactan is increased in the composition. This is particularly important in the personal care industry, where it is desirable to have the flexibility to adjust the amount of derivatized Arabinogalactan depending upon the results it is desired to deliver to the user without negatively impacting the overall viscosity of the personal care composition.
Type:
Grant
Filed:
November 30, 2000
Date of Patent:
September 18, 2001
Assignee:
Larex, Inc.
Inventors:
Chew-Hung Mak, Morton A. Westman, Michael Lynn Finney, Richard Dale Lamb
Abstract: A aqueous ink for a ball-point pen which is stable over time and has high pigment dispersion stability, includes a pigment, a water-soluble organic solvent, water, xanthane gum of about 0.01 to about 0.2 wt. % and a sodium alginate of about 0.2 to about 0.6 wt. % of a total amount of the ink.
Abstract: Provided is an ink composition comprising at least a colorant and water, wherein the ink composition further contains 0.5 to 15% by weight of reduced dextrin or reduced maltodextrin based on the total weight of the ink composition. It is a water based ink composition for a ball point pen which is excellent in dryout resistance and is safe and which does not cause a fluctuation in a viscosity and a pH with the passage of time.
Abstract: An action of the preventing drying at a pen tip without using water-soluble organic solvents such as glycols, glycerin and glycol ethers which have so far been used for a water based ink for a ball point pen is allotted to at least one selected from the group consisting of a reducing sugar comprising maltitol as a principal component, a reducing sugar comprising sorbitol as a principal component, reducing dextrin, reducing maltodextrin, &agr;-cyclodextrin, &bgr;-cyclodextrin and maltosylcyclodextrin, and the actions of inhibiting feathering of the drawn lines, improving discharge stability of the ink and maintaining the lubricity are allotted to at least one selected from the group consisting of an alkylene oxide adduct of polyglycerin, an alkylene oxide adduct of glycerin and an alkylene oxide adduct of trimethylolpropane.
Abstract: An improved ink suitable for ink jet printing comprising, a mixture of a colorant, an arylketoalkene stabilizing compound or a photoreactor, and a liquid vehicle, wherein the colorant is light-stable. When the photoreactor is combined with a wavelength-selective sensitizer to form a radiation transorber, the colorant is mutable upon exposure of the radiation transorber to specific, narrow bandwidth radiation. The colored composition may also contain a molecular includant having a chemical structure which defines at least one cavity wherein each of the colorant and photoreactor or radiation transorber is associated with the molecular includant. The invention also includes ink jet print cartridges containing the improved ink, ink jet printers containing the improved ink and methods of printing using the improved ink.
Type:
Grant
Filed:
June 1, 1999
Date of Patent:
May 22, 2001
Inventors:
Ronald Sinclair Nohr, John Gavin MacDonald
Abstract: An ink composition comprising:
(a) from 0.1 to 50 parts of a dye;
(b) from 0.1 to 50 parts of a sugar;
(c) from 0.1 to 50 parts of a compound selected from phosphoric acid and a carboxylic acid or a salt thereof;
(d) from 0 to 10 parts of a pH buffer; and
(e) from 10 to 99 parts of a liquid medium;
wherein all parts are by weight and the total number of parts (a)+(b)+(c)+(d)+(e)=100.
Also claimed is a recording sheet comprising a substrate coated or impregnated with a sugar, a compound selected from phosphoric acid and a carboxylic acid or a salt thereof and optionally a binder; a coating composition; a method of ink jet printing; a substrate printed according to the method; and an ink jet printer cartridge which contains the ink and/or the coating composition.
Abstract: The present invention is directed to dyes and coloring liquids, in particular ink-jet inks, formulated using the same, exhibiting either or both improved waterfastness and smearfastness across a range of media for use in many applications such as ink-jet printing.
Abstract: An erasable image forming material includes a color former, a developer, a binder resin, and a polymer decolorizer having an electron donating group capable of physically or chemically adsorbing the developer. This polymer decolorizer is, e.g., a polymer compound having a sugar skeleton, representatively starch. This image forming material can form sharp images and erase images by heat or a solvent to achieve a good erased state.
Abstract: Provided is a water based ink for a writing instrument comprising at least a colorant, a dispersant, water and a polar solvent, wherein the ink contains 0.5 to 20% by weight of dextrin or maltodextrin based on the weight of the whole ink. It has an excellent drying resistance.