摘要:
A hot melt dispensing system includes a hot melt tank having a tank outlet, a flow passage extending from the tank outlet, and a check valve. The flow passage has a first end and a second end. The first end is adjacent the tank outlet. The check valve is positioned at the first end of the flow passage.
摘要:
A melt blown system for adding a fine fiber layer to a substrates includes a die assembly, a first channel in the die assembly for carrying a first fluid, a first cavity fluidically coupled to the first channel that is configured to collect the first fluid, a first orifice for carrying a second fluid through the die assembly which is fluidically coupled to a second orifice in the die assembly by at least one channel, a plurality of first nozzles in the die assembly that are fluidically coupled to the first orifice, a plurality of second nozzles in the die assembly that are fluidically coupled to the second orifices, and a plurality of third nozzles in the die assembly that are fluidically coupled to the first cavity.
摘要:
A thickness adjustment device for thin-film coating is revealed. The thickness adjustment device for thin-film coating includes a coating device, a support set, and a thickness adjustment unit. The coating device consists of a work piece conveyor that delivers a work piece, and a material supply unit that carries a coating material onto a surface of the work piece to form a film. The support set is connected to the coating device while the thickness adjustment unit is inserted through and mounted on the support set. The thickness adjustment unit includes a scrape part disposed correspondingly to the work piece and used for applying coating material to form the film. The thickness of the film is adjusted according to a controlling force or torque of the thickness adjustment unit that presses downward. Thus the film is coated on the work piece evenly and the film coating quality is increased.
摘要:
The invention relates, inter alia, to a device for applying a plurality of threads of a fluid, such as adhesive or lotion, to a moving web-like substrate, having a plurality of outlet openings for the threads of fluid, wherein each outlet opening is disposed between a pair of flow openings, through which a flow fluid, in particular compressed air, flows in order to achieve thread oscillation. The special feature consists, inter alia, in that the outlet openings are disposed along a curved path.
摘要:
A die head is disclosed comprises: a feed slot which is positioned downstream of the moving direction of the substrate and continuously feed the coating solution; a gas suction slot which is positioned upstream of the moving direction of the substrate and suctions a gas so as to create vacuum in the vicinity of the upstream edge of the bead with respect to the moving direction of the substrate; and a gas ejection slot which is positioned between the feed slot and gas suction slot and ejects a gas so as to prevent inflow of the coating solution into the gas suction slot.
摘要:
In the hot-glue application system with a melter and components connected thereto, such as one or more heatable feeder pipes and one or more heatable application valves, the components contain a machine-readable and preferably also machine writable data storage medium.
摘要:
Structured adhesive constructions are provided. The adhesive constructions comprise a layer of a first adhesive with a first property and a layer of a second adhesive with a second property. The layer of the first adhesive comprises a plurality of spaced apart stripes of adhesive, coated on or laminated to a facestock or release liner. The layer of the second adhesive comprises a plurality of spaced apart stripes of adhesive, coated on or laminated to the facestock or release liner and located between the plurality of stripes of the first adhesive. The use of two different adhesives enables manipulation of desired adhesive properties in a single adhesive construction. The resulting adhesive may have two or more different desired properties, such as adherence at both high and low temperatures, or initial repositionability followed by permanent adhesion, or other combinations of desired properties. A coating die and a method of coating structured adhesive constructions are also provided.
摘要:
An adhesive applicator for a core-making machine is provided with an applicator plate for applying adhesive to a web. The applicator plate has upstream and downstream faces and a bottom surface which extends from the upstream face beyond the downstream face. The bottom surface is adapted to spread adhesive on a moving web below the bottom surface. The bottom surface forms a narrow wedge-shaped portion with an upper surface which extends away from the downstream face.
摘要:
An apparatus for curtain coating, particularly for high-speed curtain coating of a continuous paper web substrate (12) is provided with a hopper means (14) providing one or more liquid coating materials in the form of a free-falling curtain (16) impinging the substrate (12) at a dynamic wetting line. Edge guide elements (22, 24) are arranged on both sides supplying a wetting or auxiliary liquid. Each guide element (22, 24) has at least one contact area of its surface directed towards said curtain, which contact area has a multiplicity of grooves (32) and ribs (34) extending along the length of said edge guide elements (22, 24).
摘要:
System and method for applying glue to a moving web. The system includes a glue nozzle coupled to glue reservoir. The glue nozzle has an outlet opening arranged to apply glue to the moving web while the moving web moves along a direction. A device delivers a substance to a region of the outlet opening. The device delivers the substance behind the outlet opening relative to the direction. The method includes applying the glue onto the moving web while the moving web moves along a direction and feeding the substance behind the outlet opening relative to the direction. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.