Paper making and fiber liberation inventions 10/09

20090242152 - Bleaching process of chemical pulp: A process for the bleaching of chemical pulp, wherein the initial bleaching of the pulp includes a first chlorine dioxide treatment (D0) and a following alkaline treatment with oxygen and hydrogen peroxide (EOP), which stages are separated from each other with a washing stage, and a treatment of the pulp... Agent: Young & Thompson

20090242153 - Process for manufacturing a fibrous ply comprising an element of a given thickness and forming fabric for producing the fibrous ply: A wet process for manufacturing a fibrous ply on a forming fabric of a paper machine, including a stack of fabrics, the stack of fabrics having a surface fabric and at least one under-fabric, these being superposed, the fibrous ply having at least one element of a given thickness, wherein... Agent: Oliff & Berridge, PLC

20090242154 - Molded wet-pressed tissue: A soft, layered, single-ply wet-pressed tissue can be made with improved softness by providing one or both outer layers of the tissue with polysiloxane-treated pulp fibers. A particularly suitable wet-pressing process includes pressing a wet tissue web between a felt and a transfer belt to dewater the web, followed by... Agent: Kimberly-clark Worldwide, Inc. Catherine E. Wolf

20090242155 - Method and apparatus for paper stock mixing: A method of mixing paper stock, having improved outlet consistency, includes: (a) feeding liquid and feeding paper pulp into a vessel to form a mixture; (b) providing at least one counterflow impeller that is submerged in the mixture, the counterflow impeller being capable of simultaneously inducing both upward flow and... Agent: Woodcock Washburn LLP

20090242156 - Method and device for guiding a paper web or the like: The invention relates to a method and device for guiding a paper web, or corresponding web-like moving track, by using jets of compressed air as an aid. There are two jet directions, one essentially facing the arrival direction of the web (1) and the other essentially facing the departure direction... Agent: Joel D. Skinner, Jr. Skinner And Associates

20090242157 - Paper machine, especially a tissue paper machine: In a tissue paper making machine downstream the yankee-cylinder (9) and upstream the tambour roll (14) a spark detector (13) is provided in the vicinity of the paper web running to the winding-up section (4) in order to detect sparks of glowing fibers or fiber conglomerates, which can be enrailed... Agent: Young & Thompson

20090242158 - Process and apparatus for producing a tissue web: An apparatus for producing a fibrous web includes: a circulating permeable structured belt defining a sheet forming zone in which the fibrous web is formed; a circulating unstructured permeable supporting belt; a pressing section through which the fibrous web is led lying between the circulating permeable structured belt and the... Agent: Taylor & Aust, P.C.

20090242159 - Press felt and method for its production: The invention relates to a felt belt, especially a press felt for a paper—, cardboard or tissue machine, with a basic structure that is formed by (a) a longitudinal reinforcement module extending on the width and length of the felt belt, including (1) a laid longitudinal thread structure on the... Agent: Taylor & Aust, P.C.