Various embodiments relate to plastic-metal junctions and methods of making the same via laser-assisted joining. The present invention provides a method of forming a junction between a metal form and a solid plastic. The method can include laser treating a surface of a metal form to generate a feature (e.g., a plurality of at least one of pores and grooves) in the surface of the metal, wherein the laser has an angle of incidence with the surface of the metal of other than 0 degrees. The method can include contacting the metal surface including the feature with a flowable resin composition. The method can include curing the flowable resin composition to form the solid plastic, to provide the junction between the metal form and the solid plastic.

A plastic bag comprising a welded segment at its closure which comprises sealing projections and interlocking projections to form a high integrity seal at the closure edges.

A microfluidic device comprises a first substrate (102) made of a first polymer material and a second substrate (104) made of a second polymer material, the first (102) and second (104) substrates having respective bonding surfaces (23, 41), at least one of the bonding surfaces (41) having channel formations (14) so that, when the bonding surfaces (23, 41) are bonded by surface deformation to one another, the bonded first and second substrates (102, 104) and the channel formations (14) form at least part of a microfluidic channel network comprising a plurality of microfluidic channels, wherein one or more indicator pits (11), separate to the channel formations (14) defining the microfluidic channel network, are formed in at least one of the bonding surfaces (23, 41), so that surface deformation caused by the bonding process causes a change of configuration of the one or more indicator pits (11).

A heat-curable tape, a kit, and a method for connecting ends of an elongate belt to form an intermediate transfer members suitable for use with indirect printing systems. The kit includes an elongate belt and the heat-curable tape. The kit can include a crimping pin. The method includes using the heat curable tape to join ends of the elongate belt at a seam. A heater is used, in a printing system, for heat-curing the heat-curable tape onto the free ends of the elongate belt so as to form the intermediate transfer member.

A method of joining a metal and a plastic member, a method of joining a CFRP member and a plastic member, a method of joining a metal and a CFRP member through a plastic member, in particular a method of joining members able to join members by a faster joining speed and able to give a joined member excellent in joining strength are provided. A method of joining a metal and a plastic member by overlaying a metal and a plastic member and joining them by firing a laser beam from the plastic member side, comprising overlaying the plastic member and glass through which the laser beam will pass on the metal in that order and firing the laser beam from the plastic member side through the glass at a joining location where the metal and the plastic member are overlaid to join them by a joining speed of 0.5 m to 5.0 m/min.

A flexible container incorporating flexible front and rear sheets with a perimeter seal in which at least one length or section of the perimeter seal can include a seal weld that has both a permanent seal section and a pressure absorbing seal section. The pressure absorbing seal section is configured to peel, fail, or split when the flexible container, filled with a solution or liquid, is dropped onto a hard surface to thereby absorb the impact of the drop. The flexible container can be provided with one or more dispensing and/or additive ports or without any port. The flexible container may include more than one compartments with a peelable seal separating two adjoining compartments of the flexible container.

The present disclosure relates to a method for producing an oral pouched snuff product comprising a filling material (29, 10) and a saliva-permeable pouch (43) enclosing the filling material (29, 10), the product (29, 10) having a moisture content of at most 20% by weight, in particular at most 10% by weight, based on total weight of the product (29, 10), the saliva-permeable pouch (43) having one or more seals (45, 46), and said filling material (29, 10) comprising at least 20% by weight, based on dry weight of the filling material (29, 10), of at least one ingredient having a melting temperature below 180 C., the method comprising ultrasonically welding and cutting an advancing web (32) of packaging material (7) to which the filling material (29, 10) has been supplied. The present disclosure also provides an oral pouched snuff product which is obtainable by this method.

A new ultrasonic aided laser joining method (UAL) for bonding dissimilar materials has been developed. The method is capable of eliminating the laser-induced bubbles at the bonding faces and to improve the joint strength over that of the conventional laser-assisted metal and plastic joining method (LAMP). Some experiments on joining titanium to polyethylene terephthalate have been conducted to show the superiority of UAL over LAMP. The results showed that the joint strength, measured in terms of failure load, was significantly increased when ultrasonic vibration was employed during laser joining. For the LAMP joined specimens, fracture normally occurred at the metal-plastic interface, whereas for the UAL joined specimens, fracture normally occurred in the parent plastic part. The improvement in joint strength is mainly due to the elimination of pores in the resolidified plastic. In addition, ultrasound vibration promotes chemical bonding between the plastic and metal parts, and this is supported by the XPS results.

An article for laser marking can comprising: a thermoplastic composition comprising a thermoplastic polymer, an active component comprising at least one of a polymeric unit and an additive, wherein the thermoplastic polymer has a visible transmission of greater than or equal to 80% according to ASTM D1003-00, Procedure A, using D65 illumination, 10 degrees observer, and thickness of 1 mm; and a mark produced by chemical rearrangement of the active component generated by a laser of a first wavelength; wherein the mark exhibits at least one of: (i) a change in optical properties in the region 400 nm to 700 nm when exposed to light having a wavelength less than or equal to 500 nm; and (ii) a change in optical properties in the region of 400 nm to 700 nm when exposed to light having a wavelength greater than or equal to the first wavelength.

The present disclosure relates to methods and apparatuses for mechanically bonding substrates together. The apparatuses may include a pattern roll including a pattern element protruding radially outward. The pattern element includes a pattern surface and includes one or more channels adjacent the pattern surface. The pattern roll may be positioned adjacent an anvil roll to define a nip between the pattern surface and the anvil roll, wherein the pattern roll is biased toward the anvil roll to define a nip pressure between pattern surface and the anvil roll. As substrates advance between the pattern roll and anvil roll, the substrates are compressed between the anvil roll and the pattern surface to form a discrete bond region between the first and second substrates. As such, during the bonding process, some yielded substrate material flows from under the pattern surface and into the channel to form a channel grommet region.