Abstract:
A method for monitoring the accumulation of impurities on a surface (2) of a rubber blanket of a printing press (1), said surface rotating about an axis (4) of said rubber blanket, characterized by the steps of a) determining a measuring area (3) on said rotating surface to be monitored, b) illuminating the measuring area with at least two light sources (101), c) acquiring images of the measuring area with at least one image sensor (102), d) acquiring a topographic illustration of said images by means of a topographic measurement system, e) repeating the above steps b), c) and d) one or more times, f) registering an increasing amount of accumulated impurities from the acquired topographic illustrations, and g) interrupting the operation of the printing press for cleaning said surface when the amount of accumulated impurities on the measuring area has reached a predetermined level.
Abstract:
The invention concerns a deep-drawn paper tray (4), particularly a shallow tray made of paperboard or cardboard, a method and an apparatus for manufacturing such a tray by deep-drawing techniques, and a closed product package comprising the tray of the invention, particularly a heat-sealed gas- and liquid-tight food package. The tray comprises a bottom (4a) and upwardly expanding side walls around the bottom, the side walls of the tray being shaped to expand through a plurality of circumferential steps (4b, 4c, 4d) dimensioned low enough for obtaining wrinkle-free side walls for the tray. The outermost step is a flat, wrinkle-free rim flange (4d), which enables liquid and gas proof heat-sealing of a lid to form the package. The apparatus according to the invention may comprise upper and lower moulding tools (10, 11) with concentric movable frames (10b, 10c, 10d) for forming the tray bottom and side wall steps to paper blanks, and moulding tools (10) may be mounted onto a rotating turret (9) carrying a paper blank through working stations arranged along the turret circumference, to shape the tray bottom and the side wall steps at the consecutive stations.
Abstract:
The present invention relates to a method for preparation of betulinic acid from betulin. The method comprises oxidizing betulin to betulinic and/or betulonic aldehyde with a ruthenium based catalyst catalyzed oxidation process in the presence of an oxidant, and further converting the betulinic and/or betulonic aldehyde to betulinic acid.
Abstract:
This invention relates to a rotogravure printing device for electrostatically assisted printing, comprising a surface arranged with numerous ink cells (3), each having a wall portion (31) and a bottom portion (33) wherein at least a plurality of said cells (3) at the bottom thereof, are arranged with at least one protruding part (34).
Abstract:
A smart package backing (100) for pills removable from the backing, wherein the backing is adapted to record a removal of said pills by means of detection elements (103, 401a, 501a). The detection elements comprise electrical components (401a, 501a), wherein said electrical components are pressed onto the backing (100) with methods of printing technology. The removal of a pill from the backing is adapted to bring about a structural change in at least one printed component, and the structural change of said component is adapted to bring about an electrically measurable change in an electric circuit comprising said component. In addition, at least one of said electrical components (401a, 501a) deviates in terms of its specific electrical value from the specific electrical value of at least one other electrical component (401a, 501a).
Abstract:
The invention discloses a method of controlling a pulping process wherein wood chips are conveyed to an impregnation vessel and/or to a digester where said wood chips are treated with a liquor comprising chemicals. According to the method of the invention a ratio between a measured, actual mass flow of moisture wood chips to an impregnation vessel or to a digester and an estimated mass flow of dry wood chips conveyed to the impregnation vessel or to the digester is calculated. Said ratio is used to control the pulping process. The method makes it possible to control e.g. the supply of chemicals, the liquor to wood ratio and the pulping temperature on-line, in a feed-forward manner.
Abstract:
A chip (201) is attached to a printed conductive surface. The chip is first heated to a first temperature, which is lower than what the chip can stand without being damaged by the heat. The heated chip is pressed against the printed conductive surface with a first pressing force. A combination of said first temperature and said first pressing force is sufficient to at least partly melt the material of at least one of: the printed conductive surface, contact point on the chip (205, 206).
Abstract:
The present invention relates to a container made from fiber based board wherein the container comprises a sleeve and a bottom, said bottom comprises polymer coated board, at least one side of said sleeve is uncoated and the sleeve is formed by sealing two edges of the sleeve together along a side seam. The invention further relates to a method for producing said container.
Abstract:
The present invention relates to a process for the production of a composition wherein the process comprises pre-treating cellulosic fibers by mechanical, chemical and/or enzymatic treatment, mixing the pre-treated cellulosic fibers with pigments forming a dispersion and dispersing the dispersion of pre-treated cellulosic fibers and pigments whereby a composition comprising microfibrillated cellulose is formed. The invention further relates to a composition produced according to the process.
Abstract:
The present invention relates to a composition comprising microfibrillated cellulose, mono-, di- or oligo-saccharides and a pigment in order to achieve a composition with improved rheological properties such as a low viscosity even at high dry content. The present invention further relates to process for the production of said composition. The microfibrillated cellulose is produced by at least partly enzymatic treatment of cellulosic fibers such that even mono-, di- or oligo-saccharide is formed.