摘要:
An elasticised web (10) has a gatherable substrate (12) and a multi-strand elastic yarn (14) affixed to the gatherable substrate at a number of fixation locations (16). So that the yarn can be affixed to the substrate without the use of an adhesive, the yarn is subjected to forces to create partial delamination of the yarn at the fixation locations and a portion of the gatherable substrate is caused to pass between the thus delaminated strands of the multi-strand elastic yarn. The elasticised web of the present invention is particularly suitable for use in disposable absorbent articles.
摘要:
A moulding apparatus for preparing artificial locks of hair for hairstyles comprises a die (91) with a channel and a punch (81) with a channelled profile complementary to the channel, movable transversely towards each other to exert a compressive force on the end portion of a tuft of hairs in contact with thermoplastic resin placed within the channel, and away from each other after the compression and the setting of the resin.
摘要:
A compression element and a retention assembly using the compression element to retain an article on a flexible substrate are disclosed. Also disclosed is a method of making an assembly including an article retained on a substrate by a compression element. The retention assembly, compression element and method provide replacements for, e.g., mechanical staples. The retention assemblies, compression elements and methods are particularly useful for attaching elastic articles to the surfaces of flexible substrates without piercing the substrate. One example of attaching an elastic article to the surface of a flexible substrate is the attachment of an elastic strap to a respirator.
摘要:
An apparatus for attaching a tag (T) and a thread length (S) to a web of filter material (W) with one end of the thread length secured to the tag and the other end being secured to the web adjacent one side edge of the web and the tag being attached to the web adjacent the opposite side edge. The apparatus has a gripper for drawing the tag, with the thread secured thereto, across the web from that one edge to an extended position beyond the opposite side edge before returning the tag to a final extended position over the web. The apparatus also has a mechanism (24) for attaching the tag to the web in the final position, a displacement mechanism for the gripper means that has a first linear guide on which the gripper is slidable, and a second inner guide that is transverse to the first guide and fixedly located in the apparatus. The gripper is movable in the mutually transverse directions of the guides, both transversely across the web to the extended and final positions and longitudinally of the web away from the tag-attaching mechanism.
摘要:
A moulding apparatus for preparing artificial locks of hair for hairstyles comprises a die (91) with a channel and a punch (81) with a channelled profile complementary to the channel, movable transversely towards each other to exert a compressive force on the end portion of a tuft of hairs in contact with thermoplastic resin placed within the channel, and away from each other after the compression and the setting of the resin.
摘要:
A bristle sub-assembly (78) includes first and second base strings (68, 70) and a plurality of polymeric monofilaments (80) connected to and extending between the first and second base strings. The polymeric monofilaments form a first arched row when the first and second base strings are brought together. Several types and configurations of brushes are made using either arched bristles or combinations of arched and straight bristles.
摘要:
A method of affixing a shaving aid element (38, 42) to a razor (10) is disclosed, which includes the step of extruding the shaving aid element to form a strand (50) of shaving aid material. The strand is then rolled onto a continuous spool (48) for storage. During assembly, the strand is fed to an ultrasonic welder/cutter (62) for cutting the strand into a predetermined length and for welding the shaving aid element to a razor. The strand may be cold worked using rollers (54A, 54B) to increase its ductility and to alter its shape prior to being cut and welded.
摘要:
An apparatus and method for ultrasonically forming a surgical suture tip from a length of unfinished surgical suture material. The apparatus includes a first tipping die having a first face for contacting a portion of the length of unfinished surgical suture material. A second tipping die having a second face is also provided. The first and second die also having extending therefrom a first member and a second member. The first and second dies cooperate with the first and second members to form a length of suture. At least one mechanical actuator is provided for moving the first face of the first tipping die and the third face of the first member toward the second face of the second tipping die and the fourth face of the second member. A second actuator vibrates at least one of the first and second tipping dies at an ultrasonic frequency of about 15 KHz to about 70 KHz. The method of ultrasonically forming a suture tip comprises the positioning a surgical suture between the first, second, third and fourth faces of the tipping apparatus then vibrating the dies at an appropriate frequency.
摘要:
A multifilament surgical suture having a body portion and a tip portion, the filaments of the core of the tip portion being ultrasonically fused together. An apparatus and corresponding method for ultrasonically forming such a surgical suture tip from a length of unfinished surgical suture material is disclosed. The apparatus includes: a first tipping die having a first face for contacting a portion of the length of unfinished surgical suture material; a second tipping die having a second face is also provided; at least one mechanical actuator is provided for moving the first face of the first tipping die toward the second face of the second tipping die; a second actuator vibrates at least one of the first and second tipping dies at an ultrasonic frequency of about 15 KHz to 70 KHz.
摘要:
A tagged packet carries a tag (T) which is attached to the main body (B) of the packet by a thread (S). The thread comprised polypropylene so as to be attachable by heat sealing to the body. The body is made up of layers of sheet material also comprising thermoplastic material to allow the body to be closed by heat seals. The thread is secured to the face of the body at one edge at the same time as that edge is heat sealed and the heating for the thread seal is applied from the opposite face of the body whereas the adjacent regions of edge seal spaced from the thread has the heating applied through the first face. This arrangement gives closer control of the different conditions required for securing the thread and for sealing together only the sheet material of the body.