摘要:
The apparatus of the invention provides a coat of lacquer or varnish on a tear-off cover, which is formed from a thin ferromagnetic metal, has a circumferential supporting lip and is equipped with a tear-off opening made by scoring and/or punching in or out the cover surface. To provide the coat of lacquer or varnish the cover is moved through an electric coating tank, a washing tank and drying zone with the plane of the cover oriented substantially vertically while being supported exclusively on the surface of the inner wall of the supporting lip. The entire surface of the cover is completely covered by the lacquer or varnish coating except for a small portion on the inner wall of the supporting lip which is positioned inside the closed container in a folded seam and/or covered by a sealing material.
摘要:
The invention concerns a solvent-free, polymerizing hotmelt substance free of, or low in monomers, for corrosion- and/or abrasion proofing and/or forming a protective film with barrier properties on a real substrates and molded bodies made of metal, plastic, cellulose materials and/or inorganic materials, in particular for wrapping purposes, and consisting of(a) one or more polymerizing polymers containing hydroxyls with an average molecular weight (M.sub.w) between 1,000 and 500,000 and with a glass transition temperature (T.sub.g).gtoreq.20.degree. C., and/or(b) one or more polymerizing, linear, unbranched and/or unbranched polyesters and/or their copolymers with an average molecular weight (M.sub.w) between 900 and 50,000 and with a glass transition temperature (T.sub.g).gtoreq.-50.degree. C., and/or(c) a polymerizing oligomer bearing ethylene-unsaturated groups of acryl-, methacryl-, ether-, ester-, urethane-, amide-, imide-, epoxy-, siloxane-, phenol-, novolak- and/or mercapto-compounds with an average molecular weight (M.sub.w) between 400 and 10,000, and(d) where called further known additives, which is characterized by containing such components (a), (b) and/or (c) which were functionalized with one or more dimeric and/or oligomeric acrylic acid(s) of the general formula ##STR1## wherein R.dbd.H, --CN, halogen and/or an alkyl group with 1 to 4 C atoms, and m is a number between 1 and 5, and it further concerns a process for the preparation of said substance.
摘要:
An easy-open package for a fluent material comprises an upwardly open base vessel having an annular rim, a foil having an outer periphery engaging the rim and formed inward of the periphery with a nonstraight tear line defining a tearout portion, an open tab engaging the portion within the tear line, and respective bonds securing the foil at its periphery to the rim and securing the tab to the portion within the tear line.
摘要:
A packaging means adapted to be filled with a liquid or solid fill material having an opening in a wall thereof sealed by a removable sealing means, the sealing means being attached to the wall of the packaging means in a manner effective to seal the opening by means of a solvent-free thermoplastic hot melt adhesive. A novel thermoplastic hot melt adhesive and a melt of use thereof to attach the sealing means are also provided.
摘要:
A holding device for gripping and retaining containers, including can bodies or cans which have one open end, during transport on conveyers, includes a planar carrier which can be connected at the conveyer chain or forms part thereof. A plurality of clamp elements is secured at the carrier. The clamp elements are made of resilient material, and they are fastened for clamping or snap-like retention of the container bodies at diametrically opposite locations respectively in pairs at the carrier. The clamp elements of each pair have respectively crossing adjacent sections, and the inner clamp is adapted to operatively contact the peripheral edge of the respective retained container. The outer clamp is adapted to operatively engage the outer wall surface of the container rim which is directed towards the carrier.
摘要:
A printing assembly comprises a counter-pressure cylinder (11) and an inking unit (17). The counter-pressure cylinder (11) or the inking unit (17) and/or the substrate (10) are divided axially into a plurality of thermal zones (Z1, Z2 . . . Zn) that may be independently heated or cooled so as to change the viscosity of the ink in this zone. Thereby, the amount of ink may be thermally influenced over the width of printing. The control of the ink amount may be effected in the axial direction during the printing operation without any changes in the mechanism of the machine.
摘要:
An easy-open package has a vessel forming an upwardly open compartment and having an annular rim surrounding the compartment and a foil engaging the rim of the vessel part all around the compartment, having an open tab which projects laterally past the rim, and formed with a tear line extending around the compartment except at the tab and extending around and delimiting of the tab. The tab is unitarily formed with the foil and is connected to the foil by an integral web that overlies and is bonded to the rim. The bond between the foil and the vessel is substantially weaker at the web than elsewhere.
摘要:
An easy-open package has a vessel having an annular peripheral rim and at least one crosswise rib forming with the rim a plurality of upwardly open compartments, a foil engaging the generally coplanar upper edges of the rim and rib of the vessel, formed with a tear line extending around the rim, and provided with an open tab attached to the foil within the tear line, and repsective rim and rib hermetic bonds securing the upper edges of the rim and rib to the foil. When the individual compartments are to be kept separate, the foil is formed with an annular tear line around each such compartment and is provided within each tear line with a respective such open tab.
摘要:
There are described solvent-free, low monomer or monomer-free polymerizable melt compositions suitable for the corrosion and abrasion resistant coatings of substrates and formed bodies of metal, plastic, cellulose materials and/or inorganic materials and/or the creation of a protective film with barrier properties and methods of making them. The melt compositions are particularly useful especially for use in packaging, and comprise: (a) at least one polymerizable, hydroxyl-containing polymer having an average molecular weight (Mw) of between 1,000 and 500,000 and a glass transition temperature (Tg) of .gtoreq.+20.degree. C., and/or (b) at least one polymerizable, linear unbranched and/or branched polyester and/or its copolymer having an average molecular weight (Mw) of between 800 and 50,000 and a glass transition temperature (Tg) of .gtoreq.-50.degree. C., and/or (c) a polymerizable oligomer carrying an ethylenically unsaturated group, of the following group consisting of acrylic, methacrylic, ether, ester, urethane, amide, imide, epoxide, siloxane, phenol, novolak and/or mercapto compounds having an average molecular weight (Mw) of between 400 and 10,000, and (d) if required, conventional additives. Further described are processes for preparing these melt compositions and methods of further processing these melt compositions and finishing planar substrates and/or shaped bodies with these melt compositions. Moreover, the present invention relates to a process for polymerization or curing of the melt composition.
摘要:
At least one complete surface of at least one metallic part of a can is given a uniform coating of corrosion-preventing lacquer and this part is subsequently worked such that the metal of the part is exposed at regions at least immediately adjacent the coated surface. Dots of lacquer are sprayed by the ink-jet method substantially only on the exposed regions of the part after working thereof and so that the dots together form a continuous layer covering the exposed regions. According to the viscosity of the lacquer the surface coating can be achieved by partially overlapping adjacent dots of the applied lacquer or without overlapping by the running together of the adjacent dots of the liquid, with no excess material having to be applied to and subsequently removed from the regions to be coated.