摘要:
A method for manufacturing an azoic pigment is disclosed, according to an illustrative embodiment of the present invention. The method includes producing slurry of the azoic pigment. The slurry includes primary aromatic amine (PAA). The method further includes the derivatization of the residual PAA in the slurry, followed by encapsulation of the slurry. The slurry is acidified or basified. Finally, the slurry is further processed, thereby forming PAA migration free azoic pigment. The derivatization and encapsulation additively or synergistically reduce the PAA content thereby inhibiting migration of PAA from the pigment into a substrate onto which the pigment is loaded.
摘要:
A pigment comprising dyed crystalline cellulose particles comprising a crystalline cellulose core having a surface charge, optionally one or more polyelectrolyte layers with alternating charges adsorbed on top of each other on the crystalline cellulose core, the polyelectrolyte layer closest to the core having a charge opposite the surface charge of the core, and at least one organic dye having a charge is provided.
摘要:
A microcapsule composition, wherein the shell of the microcapsules comprises at least one polyurea which contains at least one permanent cationic group, which is covalently bonded to the shell and the core comprises at least one perfume ingredient, and wherein the shell of the microcapsules does not contain guanidinium groups.
摘要:
A temperature-indicator product comprising a visual indicator comprising a thermochromic colour-memory composition and comprising an electron-donating colouring organic compound (A), an electron-accepting colouring organic compound (B) and reaction medium compound (C). The visual indicator comprises a first portion comprising a first thermochromic colour-change composition in its lower temperature state and a second portion comprising a second thermochromic colour-change composition in its higher temperature state. The product is useful as a tamper-evident indicator or as a freeze indicator.
摘要:
According to the present invention, there are provided microcapsules comprising an emulsion droplet encapsulated by a metallic film, wherein the emulsion droplet comprises an emulsifier disposed around a liquid core material. The present invention also provides processes for preparing the microcapsules, as well as formulations comprising the same. The present invention further provides for certain consumer products comprising: an adjunct material; and a plurality of microcapsules, said microcapsules comprising: an emulsion droplet encapsulated by a metallic film, wherein the emulsion droplet comprises an emulsifier disposed around a liquid core material.
摘要:
Method to produce a dye, which is suited to be applied on fabrics, starting from textile waste material, the method comprising the following steps: an initial step (10), during which textile waste material is provided, which comprise textile fibers, which were previously dyed; and a pulverization step (12), during which said textile fibers are pulverized to obtain the dye.
摘要:
Novel reaction media for electron donating and electron accepting components in colour- change compositions are described. The compound is of formula (I): wherein R 1 , and R 2 are selected from a linear or branched alkyl group, alkenyl group, alkoxy group, aryl group and an alkylene aryl group having from 6 to 22 carbon atoms; X 1 and X 2 are selected from -OC(O)-, -CO 2 - and O; R 3 , R 4 and R 5 are selected from hydrogen and an linear or branched alkyl group, cycloalkyl group, alkenyl group, alkoxy group, aryl and alkylene aryl group; R 6 is selected from hydrogen, R 3 , -Χ 1 R 1 and aryl and halogen; Y 1 Y 2 Y 3 and Y 4 are selected from hydrogen, R 3 , -OR 3 and halogen; a is 0 to 4; b is 0 or 1; x and y are independently is 0 or 1 provided that where x and y are 0, a is 0 and b is 1 and R 6 is -C0 2 R 1 ; and wherein when a is 0 and b is 1 and R 5 or R 6 is phenyl, R 6 and R 5 respectively are not hydrogen or C 1-7 alkyl. The compounds are useful in ink compositions, writing implements containing the compound and medical and industrial applications in which temperature sensitive colour change may be required.
摘要:
A temperature-indicator product comprising a visual indicator comprising a thermochromic colour-memory composition and comprising an electron-donating colouring organic compound (A), an electron-accepting colouring organic compound (B) and reaction medium compound (C). The visual indicator comprises a first portion comprising a first thermochromic colour-change composition in its lower temperature state and a second portion comprising a second thermochromic colour-change composition in its higher temperature state. The product is useful as a tamper-evident indicator or as a freeze indicator.
摘要:
A method comprises providing an aqueous solution having an alkaline pH and providing an oil including at least one silsesquioxane compound. The oil is added to the aqueous solution. The oil forms a plurality of silsesquioxane oil droplets suspended in the aqueous solution such that an internal osmotic pressure is generated inside the oil droplets via a chemical reaction. The aqueous solution is allowed to osmotically diffuse into the plurality of oil droplets for a predetermined time. The silsesquioxane oil droplets are polymerized by cross-linking the at least one silsesquioxane compound included in the silsesquioxane oil droplets to form a plurality of solidified microcapsules containing the aqueous solution therewithin.