摘要:
The invention relates to a method for cross-linking a cross-linkable adhesive composition without solvent on a film, comprising driving and/or guiding said film in a climatic chamber, by a Caroll-type drive or guide.The invention also relates to a climatic chamber comprising a Caroll-type drive or guide.The invention also relates to a process for manufacturing a self-adhesive article comprising at least a substrate and an adhesive layer, said process comprising the steps of: a) conditioning an adhesive composition at a temperature of between 20 and 160° C.; b) coating the adhesive composition b1) onto at least a part of the substrate or b2) onto a non-sticking support; submitting the article obtained at step b) to a controlled atmosphere.The invention also relates to self-adhesive articles having high coating weights and to processes for bonding them.
摘要:
A bridge of a corrugating machine controls corrugated fiberboard single-face webs fed from single-face corrugating machines. The bridge comprising a stored web supply formed by the bottom-most of the single-face webs, the stored web supply loosely-lying; a fixed guide element introducing a first reversal of direction of the web in the direction opposite a course of fabrication; a fixed redirecting element; a redirecting roller mounted in a frame swivelable about a vertical axis, the redirecting roller cooperating with the fixed redirecting element to cause a second reversal of direction of the web back in the direction of the course of fabrication, wherein the redirecting roller is disposed above the fixed redirecting element such that a web course section is created running parallel to the swivel axis; and a steering frame having a braking roller feeding the web to a preheating station, the braking roller creates a desired web tension load.
摘要:
A package of strip material includes a plurality of stacks of the strip side by side where each strip forms a stacked fan folded supply of the strip which is spliced to or arranged so that it can be subsequently spliced to a next adjacent strip for supply of a continuous strip from the package. The side by side stacks are simultaneously built up from the bottom by moving a carriage back and forth below a stationary bottom surface of the stacks with the strips supplied side by side through a slot in the carriage. The stacks are supported side by side as they are built up by rigid side walls of a chute or of a box into which the package is to be packaged for transportation. The tails are supported or arranged so that they are ready for splicing when the package is completed an before transportation. The packaging material can be an evacuated bag or a rigid box. Transfer of the completed stacks is effected simultaneously by a slip sheet arrangement or by moving one of the belts of the carriage as an ejection belt.
摘要:
An accumulator system for foldable sheet-like material. The system includes an accumulator bin having a pair of sidewalls, a pair of end walls, a bottom wall, and an open top. An infeed mechanism conveys the material to the accumulator bin. A chute receives the material from the infeed mechanism and guides the material inside the chute. In a first state, the chute is stationary and the system operates in a steady-state condition with a loop in the material between the infeed mechanism and an outfeed mechanism. In a second state, the outfeed mechanism is shut off and the chute is capable of reciprocating such that the material is guided toward the bottom wall of the bin. The reciprocating motion of the chute causes the material to be folded endwise in alternating fashion.
摘要:
A dual technology printer includes first and second print stations having a polychromatic print engine and a monochromatic print engine, respectively. The print engines are preferably an ink jet print engine and a thermal print engine. A variable length media queue is formed between the two print stations. The queue may be formed by a guide roller that defines a loop of media between the stations and that is movable to adjust the length of the loop and thereby the length of the queue. Preferably, the second print station has a predetermined pixel addressability and a resolution substantially equal to the addressability to produce sharp borders for machine readable symbologies. In a printing operation, the printing of color images at the first print station may be carried out ahead of demand for a particular batch printing operation during which monochromatic images are printed at the second print station.
摘要:
Apparatus for festooning a traveling length of textile fabric or other web-like material comprises a frame supporting a pair of opposed spaced endless conveyor chains across which a plurality of fabric support rods are removably carried by the conveyor chains in succession with one another for supporting an individual festoon of the fabric depending between each successively adjacent pair of the rods. A secondary conveyor arrangement at the fabric entrance end of the frame is operative to temporarily remove each succeeding fabric support rod from the conveyor chains and, after a selected dwell time, to replace each removed rod onto the conveyor chains to control the festooning accumulation of the fabric on the support rods. The upper web carrying run of the conveyor chains extends upwardly and downwardly in a sinuous path of travel over a succession of angularly inclined chain guide flanges, by which the overall length of the web carrying run in relation to the horizontal lengthwise dimension of the festooning apparatus is maximized.
摘要:
A bobbin changer includes a storage arrangement for storing a number of reels, a reel unwinding station arranged to receive successive reels from the storage arrangement, means for initially rotating each new reel at the unwinding station in a reverse direction (i.e. opposite to the direction of rotation during unwinding), a suction head which is mounted adjacent to the reel and is arranged to pull the leading end portion of the web away from the reel as it approaches the suction head, and means responsive to the movement of the leading end portion of the web and arranged to discontinue the reverse drive on the reel and to initiate a splicing operation.
摘要:
A storage buffer for a moving web comprises a collection bin having an opening through which the web can be randomly dumped under the influence of gravity; means for floating randomly dumped web within the collection bin upon a cushion of gas without mechanical support of said web; a web exit within a wall of said collection bin; and means for guiding pressurized gas over web passing through the web exit.
摘要:
Drive mechanism for an apparatus for laying an in particular unfolded fibrous material web, in particular a paper web or a corrugated paper web, like a corrugated cardboard web, in a Leporello fold, comprising a pair of opposing rollers that form a passage gap for the fibrous material web and respectively define a rotational axis around which said rollers rotate, in particular when the fibrous material web passes through the passage gap, characterised by a rotational axial roller drive that rotationally drives at least one of the two rollers for delivering the fibrous material web through the passage gap to form the Leporello stacking, and a pivot drive that has in particular a pendulum axis not coinciding with the rotational axes, wherein the at least two rollers are pivot-mounted such that the rotational axes can be pivoted back and forth about the common pendulum axis.
摘要:
A roll of knitted pile fabric is disclosed including an extended length fabric strip made from a plurality of seamed standard lengths of the fabric, the extended length fabric strip being substantially spirally wound upon a hollow core with consecutive windings of the extended length fabric strip being located close adjacent each other, and with consecutive rows of the extended length fabric strip overlaying each other on the hollow core. In the preferred embodiment, the standard length fabric strips are joined together at their respective contiguous ends using a small strip of heat-activated seaming tape. The extended length fabric strip is suitable for use in the manufacture of paint roller covers.