Patent classifications
Y10T428/24934
WET COATING COMPOSITIONS FOR PAPER SUBSTRATES, PAPER SUBSTRATES COATED WITH THE SAME AND PROCESS FOR COATING A PAPER SUBSTRATE WITH THE SAME
A wet coating composition useful for coating a cellulosic fiber-based substrate is provided. The composition includes two aqueous emulsions. The first emulsion includes an oxidized paraffin/polyethylene wax and the second emulsion includes an ethylene/acrylic acid copolymer wax, ethylene/acrylic amide copolymer wax, ethylene/acrylic acid/acrylic amide copolymer wax or a mixture thereof. The oxidized paraffin/polyethylene wax has a surface energy less than or equal to 2 m N/m being substantially dispersive energy. The wet coating composition when dried forms a coating having a surface energy ranging from 20 to 60 m N/m being the sum of dispersive and polar energies. A process for treating a cellulosic fiber-based substrate with the wet coating composition, a substrate coated and articles including the coated substrate are also described. The process involves a heating step to allow migration of the coating towards a core of the cellulosic fiber-based substrate.
REPOSITIONABLE MEDIUM AND STACK THEREOF
A repositionable medium includes a base, a paper, and a first repositionable adhesive. The base has a top surface, a bottom surface, a first end edge, and a second end edge. The paper is fixedly coupled to the top surface of the base proximate to the first end edge. The paper has an inner edge and an outer edge. The outer edge is closer to the first end edge than the inner edge is to the first end edge. The inner edge is spaced a first distance from the first end edge of the base. The first repositionable adhesive is fixed to the bottom surface of the base and is not present in a first low adhesion area at a line across a width of the base and spaced a second distance from the second end edge of the base. The second distance equals the length of the first distance.
RECORDING SHEET WITH IMPROVED IMAGE DRY TIME
This invention is directed to a recording sheet having improved image dry time for use in printing comprising a substrate having in contact with at least one surface thereof one or more water soluble divalent metal salts, preferably admixed with one or more starches, to process of forming such recording sheet, to a method of generating one or more image(s) on said recording sheet in a printing process and to a recording sheet having one or more images on a surface thereof.
Process for applying high viscosity composition to a sheet with high bulk
A process is disclosed for topically applying additive compositions to planar substrates, such as tissue webs. In one embodiment, the process is designed to apply relatively high viscous compositions to base sheets at high speeds in a manner that prevents the additive composition from penetrating into the sheet. The additive composition having the relatively high viscosity can be applied to the base sheet in one embodiment using an offset gravure printing process. The applicator roll includes a pattern of raised elements. The raised elements define a surface having at least one dimension that is less than 500 microns. The raised elements are also spaced closely together in order to prevent fiber buildup on the roll during relatively fast processing speeds.
BIOLAMINATE COMPOSITE ASSEMBLY INCLUDING POLYLACTIC ACID AND NATURAL WAX LAMINATE LAYER, AND RELATED METHODS
Biolaminate composite assemblies are provided. Generally, the biolaminate composite assemblies may comprise one or more biolaminate layers and at least one biolaminate layer may comprise polylactic acid. In one embodiment, a biolaminate composite assembly is provided comprising one or more biolaminate layers wherein the biolaminate composite assembly is three-dimensionally formable over a rigid non-plastic substrate. At least one of the biolaminate layers comprises polylactic acid and a natural wax. In another embodiment, a method for forming a biolaminate composite assembly is provided.
Starch-based glue composition
A highly homogeneous starch-based glue composition is obtained by enzymatic modification of the starch with a branching enzyme which is supplied in an enzymatically modified starch with high long-term stability. The starch has a viscosity stability index SI of less than or equal to 1.3, calculated by the quotient of viscosity after 14 days and by viscosity after 2 hours after preparation of the starch. The starch is suitable for liquid storage, which is stable in the long-term, of a ready-to-use paste with a high bonding strength.
Absorbent products with wetness sensors
A sensor that is sensitive to the presence of aqueous-based fluids is described. The sensor has a wetness indicating material immobilized or printed on a substrate. The indicating material contains at least one electron-donating leuco dye and one electron deficient receptor, and exhibits a visual signal (e.g., vivid or strong color intensity) in a dry state, which fades or disappears when in contact with a water-containing liquid. An absorbent article incorporating such a sensor to communicate to a user that the article has been exposed to water-containing fluids is also described.