An attachment part (10) for connecting to a structural part (30). The attachment part (10) has an attachment part longitudinal axis (A), and a weld portion (11) to be welded to the structural part (30) by torsional ultrasonic welding. The weld portion (11) has a contact surface for contact with a torsion sonotrode (70), and a weld surface (13) for connecting to the structural part (30). The weld portion (11) is delimited, at least portionally, by an inner vibration decoupling zone (14). The inner vibration decoupling zone (14), at least portionally, surrounds an inner portion of the attachment part (10).

The present disclosure provides a polyester composition suitable for ultrasonic welding and preparation method thereof, the composition includes the following components in parts by weight: 30˜50 parts of poly(1,4-cyclohexylene dimethylene terephthalate), 40˜60 parts of ABS, 5˜10 parts of a melt enhancer, 0.1˜1 parts of an antioxidant, and 0.1˜1 parts of a lubricant. Compared with the existing technologies, the polyester composition provided by the present disclosure improves melt strength by using the melt enhancer. The melt enhancer used is an ultra-high density polyethylene resin having a glycidyl methacrylate group after an irradiation treatment, so that the compatibility of the melt enhancer to the poly(1,4-cyclohexylene dimethylene terephthalate) is improved. In addition, by controlling a glass-transition temperature of the composition, no chipping is generated during ultrasonic welding, and the composition has a high welding strength, which is suitable for ultrasonic welding.

An add-on part (10) for connecting to a component (30). The add-on part (10) has a longitudinal axis (A) and a welding section (11) to be welded to the component (30) by torsional ultrasonic welding. The welding section (11) has a contact surface (12) for contact with a torsion sonotrode (70) and a welding surface (13) for connecting to the component (30). The welding section (11) is delimited, at least in some sections, by an inner vibration-decoupling zone (14). The inner vibration-decoupling zone (14) extends, at least in some sections, at an inclination to or parallel to the longitudinal axis (A). The method comprises a) bringing the welding surface (13) in contact with a welding region (31), b) applying a force to the contact surface (12) such that the welding surface (13) is pressed against the welding region (31), and c) introducing a torsional ultrasonic vibration into the welding section.

The invention relates to a single serve capsule (1) for producing a beverage, comprising a capsule body (2). Said capsule body has a capsule bottom (3), a sidewall (22), a collar edge (5), and a cover (6). A cavity (100) for accommodating a beverage substrate in the form of a powder, granules, cut leaves or liquid is formed between the capsule bottom and the cover. A filter element (7) is arranged in the cavity, and the filter element is produced of non-woven fiber material. The filter element has a cut-out in which no filtering material is provided. The present invention also relates to a method for producing a single serve capsule.

In one method, a piece of nonwoven PET or PP fabric is formed into a tote bag using a bag forming device. Seams of the tote bag are ultrasonically welded using an ultrasonic bag welding device. The ultrasonic bag welding device includes at least one sonotrode. In another method, BOPP film is received and a full-color graphic is printed on the BOPP film for each tote bag using a printer. The printed BOPP film is received from the printer and nonwoven PP or PET fabric is received from a roll of nonwoven PP or PET fabric using a laminator. The printed BOPP film is laminated to the nonwoven PP or PET fabric. The printed BOPP film laminated to nonwoven PP or PET fabric is received from the laminator and a finished version of each tote bag is produced using an ultrasonic bag welding device.

The invention relates to a single serve capsule (1) for producing a beverage, comprising a capsule body (2). Said capsule body has a capsule bottom (3), a sidewall (22), a collar edge (5), and a cover (6). A cavity (100) for accommodating a beverage substrate in the form of a powder, granules, cut leaves or liquid is formed between the capsule bottom and the cover. A filter element (7) is arranged in the cavity, and the filter element is produced of non-woven fiber material. The filter element has a cut-out in which no filtering material is provided. The present invention also relates to a method for producing a single serve capsule.

A container, a nebulizer and a use of an indicator device are described, where the container comprises an indicator device fixedly mounted on the bottom of the container, the container is arranged within the nebulizer and the container can be detached by grabbing the indicator device.

A device (10) for welding components by ultrasound. The device (10) comprises a sonotrode (11) having a sonotrode head (12) which can be excited by a vibration generator to produce torsion vibrations with respect to a torsion axis (T). At least one welding surface (14) is arranged on the peripheral side on the sonotrode head (12) with respect to the torsion axis (T). The device (10) also comprises a support device (15) which supports the sonotrode head (11) in a support area (16), which contains a vibration node of the sonotrode head (12). The support area (16) and the welding surface (14) at least partially extend along a common plane (E) which extends perpendicular to the torsion axis (T). A device (10) for welding components by ultrasound by using a temperature control device are also disclosed.

The invention relates to an ultrasonic oscillating unit that comprises a cylindrical base body having a center axis and a jacket surface into which a plurality of slits are introduced that extend obliquely to the center axis in a side view of the jacket surface.

In one method, a piece of nonwoven PET or PP fabric is formed into a tote bag using a bag forming device. Seams of the tote bag are ultrasonically welded using an ultrasonic bag welding device. The ultrasonic bag welding device includes at least one sonotrode. In another method, BOPP film is received and a full-color graphic is printed on the BOPP film for each tote bag using a printer. The printed BOPP film is received from the printer and nonwoven PP or PET fabric is received from a roll of nonwoven PP or PET fabric using a laminator. The printed BOPP film is laminated to the nonwoven PP or PET fabric. The printed BOPP film laminated to nonwoven PP or PET fabric is received from the laminator and a finished version of each tote bag is produced using an ultrasonic bag welding device.