Abstract:
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 16°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.
Abstract:
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 16°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.
Abstract:
A package (10) of a 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 (19) 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 (55, 55A) 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 and before transportation. The packaging material can be an evacuated bag (54) 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.
Abstract:
The invention relates to a device for feeding flexible endless strips (1) of material from a supply roll (R1, R2) to a processing station (VS). The device comprises an intermediate storage device (P) which is positioned between the supply roll (R1, R2) and the processing station (VS) and provisionally stores the endless material strip (1) folded in a zigzag-like manner. The material strip (1) is continuously withdrawn from said intermediate storage device when the supply roll (R1, R2) is changed. The intermediate storage device (P) is embodied by a stacking magazine having positioning cylinders (2) for loading the material strip (1) from bottom to top in a zigzag manner, and pressure and delivery rollers (3) for withdrawing the material strip (1) from the intermediate storage device (P) and feeding it to the processing station (VS).
Abstract:
In a drive mechanism for a device for laying, in particular, an unfolded fibrous material web, in particular a paper web or a corrugated paper web, such as 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/or define a rotational axis around which said rollers rotate, in particular when the fibrous material web passes through the passage gap, it is provided that the at least two rollers are pivot-mounted such that the rotational axes can be pivoted about the common pendulum axis by a rotational axes 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 by a pivot drive that has in particular a pendulum axis not coinciding with the rotational axes.
Abstract:
A package (10) of a 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 (19) 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 (55, 55A) 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 and before transportation. The packaging material can be an evacuated bag (54) 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.
Abstract:
A bulk material feeder (10) has two rollers (12, 14), at least the lower (14) of which is driven (24, 26). Strip material (34) is threaded around the side of the upper roller (12) toward the direction of feed, between the rollers (12, 14), around the side of the lower roller (14) opposite the direction of feed and to downstream machinery (38) spaced from the feeder (10). Roller (12, 14) spacing is greater than material (34) thickness precluding compression of the material (34). Feed is produced by friction between the roller and material (34) only, Feed rate is greater than usage thereby producing a depending loop (40) between the feeder (10) and the downstream machinery (38). In one embodiment, increasing loop (40) size decreases material (34) and roller (14) contact, causing relative slippage and a discontinuance of feed. In another embodiment, both rollers (12, 14) are driven and loop (40) size is limited by a photoelectric device (42) and associated control circuitry.