Abstract:
A roller device, including a first tube having a first diameter, and a through-bore having a second diameter smaller than the first diameter, the through-bore extending through and concentric with the first tube, a first rod having a third diameter smaller than the second diameter, a first end, and a second end, where the second end of the first rod is operatively arranged to telescopingly engage with the through-bore of the first tube, a second rod having a fourth diameter equal to the third diameter, a first end and a second end, where the first end of the second rod is operatively arranged to telescopingly engage with the through-bore of the first tube, at least one roller arranged to rotate about the first tube, and a first handle fixedly secured to the first end of the first rod.
Abstract:
According to a first aspect of the present invention there is provided a process for preparing a particulate solid comprising the steps i) to iv): i)providing a dispersion of polymer particles in a liquid medium, said polymer being obtained or obtainable by the copolymerisation of at least the monomers in components a) to d): a)45 to 90 parts of one of more hydrocarbyl (meth) acrylates each having a homopolymer Tg of from 90 to 130°C and having no hydrophilic groups; b)10 to 55 parts of one or more ethylenically unsaturated monomers each having homopolymer Tg of below 90°C and having no hydrophilic groups; c)0 to 40 parts of one or more styrenic monomers having a homopolymer Tg of at least 90°C and having no hydrophilic groups; d)0 to 10 parts of one or more ethylenically unsaturated monomers each having at least one hydrophilic group; wherein all the parts are by weight; ii)associating the particles to form clusters of particles; iii)optionally stabilising the clusters; iv)heating the clusters above the glass transition of the polymer.
Abstract:
A method for detecting a two-dimensional bar code pattern using a bai code pattern reader, the bar code pattern being in the form of a matrix of rows and columns of data cells of either a first or second colour representing encoded data bits, and containing a set of at least two predetermined locating symbols at predetermined positions within the bar code pattern, wherein the method comprises the steps of: receiving a two-dimensional image containing the pattern, analysing the image to identify potential occurrences of the locating symbols within the image, validating the potential occurrences of locating symbols by analysing the potential occurrences to identify any set of occurrences whose size and relative positions within the image are consistent with the predetermined positions of the locating symbols within the bar code pattern, thereby identifying a set of locating symbols, and identifying the location of the bar code pattern within the image on the basis of the positions of the identified locating symbols. An apparatus for carrying out the method, and systems which utilise the bar code pattern, are also disclosed.
Abstract:
A process for printing a substrate comprising applying thereto an ink by means of an ink jet printer, wherein the ink comprises a latex binder, a liquid medium comprising water and organic solvent, and polymer-encapsulated pigment particles comprising a carboxy-functional dispersant crosslinked around a pigment core by a crosslinking agent, wherein the ink has a minimum film-forming temperature below 70°C. Inks are also claimed. The process and inks are useful for printing temperature-sensitive substrates, e.g. foil balloons and wrapping materials for special occasions.