Abstract: The present invention is to provide a package bag having a metal layer, wherein the metal layer is formed with a first groove and a second groove, and the second groove has a first side extending to one edge of the metal layer and a second side away from said edge and communicating vertically with a central section of a first side of the first groove. The second side of the second groove is shorter than the first side of the first groove, such that the portions of the metal layer adjacent to the first side of the first groove form two first impedance-matching portions respectively, and the two corresponding portions of the metal layer adjacent to the first groove form two second impedance-matching portions respectively. Thus, due to the impedance-matching portions, a slot antenna can be formed on the metal layer for coupling with a communication device attached thereto.

Abstract: The present invention is to provide a package bag having a metal layer, wherein the metal layer is formed with a first groove and a second groove, and the second groove has a first side extending to one edge of the metal layer and a second side away from said edge and communicating vertically with a central section of a first side of the first groove. The second side of the second groove is shorter than the first side of the first groove, such that the portions of the metal layer adjacent to the first side of the first groove form two first impedance-matching portions respectively, and the two corresponding portions of the metal layer adjacent to the first groove form two second impedance-matching portions respectively. Thus, due to the impedance-matching portions, a slot antenna can be formed on the metal layer for coupling with a communication device attached thereto.

Abstract: The present invention is to provide a packing bag with a RFID function, which comprises a bag body, two conductive films and a RFID chip. The metal layer includes a first slot formed at a position proximate to an edge of the bag body and is used as a slot antenna. A second slot is formed between the two conductive films, and has a size capable for fixing the pins on two corresponding sides of the RFID chip onto the two conductive films respectively. The two conductive films are fixed on an external surface of an insulating layer of the bag body at a position corresponding to the first slot, such that the two conductive films can be coupled to two feed-in points of the slot antenna respectively, and the RFID chip can receive and transmit electromagnetic signals through the slot antenna (or the metal layer) accordingly.

Abstract: The present invention is to provide a packaging material having a T-shaped slot antenna, which includes a surface material being a plastic film and having one surface coated with a metal layer, a bottom material being a plastic film and having one surface coated on the metal layer, and a communication device having two conductive sheets connected to either the surface or bottom material. The surface material, metal layer and bottom material are formed with a T-shaped slot for forming the T-shaped slot antenna, wherein the T-shaped slot includes a vertical groove having one end connected to central position of a horizontal groove and an opposite end extending toward a lateral edge of the metal layer. The corresponding lateral edges of the conductive sheets are spaced from each other and are connected with feed-in ends of a communication chip respectively for receiving or transmitting information via the T-shaped slot antenna.

Abstract: The present invention is to provide a packing bag with a RFID function, which comprises a bag body, two conductive films and a RFID chip. The metal layer includes a first slot formed at a position proximate to an edge of the bag body and is used as a slot antenna. A second slot is formed between the two conductive films, and has a size capable for fixing the pins on two corresponding sides of the RFID chip onto the two conductive films respectively. The two conductive films are fixed on an external surface of an insulating layer of the bag body at a position corresponding to the first slot, such that the two conductive films can be coupled to two feed-in points of the slot antenna respectively, and the RFID chip can receive and transmit electromagnetic signals through the slot antenna (or the metal layer) accordingly.

Abstract: A method for forming a radio frequency identification (RFID) tag on a packing bag is disclosed and includes the steps of: equidistantly attaching RFID tags to a release film, one by one, to form a roll of tag web; installing the roll of tag web in a packing bag forming device to move the release film along a feeding direction of a packing material; changing a moving direction of the release film for peeling the RFID tags from the release film; intermittently pressing on the RFID tags for attaching the RFID tags to the packing material; bonding the RFID tags to the packing material with a melting technology; and processing the packing material by folding, sealing, and cutting to form packing bags securely installed with the RFID tags. A packing bag forming device for carrying out the method is also disclosed.

Abstract: The present invention is to provide a packaging material having a radio frequency identification (RFID) function and a bag structure using the same, wherein the packaging material comprises a surface material having an inner surface covered with a metal layer (such as aluminum foil), the metal layer has a slot with a width considerably smaller than a length thereof, and two longer side edges of the slot are connected to two feed-in ends of a radio frequency identification (RFID) chip, respectively, so as to form a slot antenna on the metal layer and enable the RFID chip to receive signals of electro-magnetic waves through the slot antenna. Therefore, the packaging material having the RFID function can be easily and speedily manufactured by forming the slot on the metal layer and installing the RFID chip to the corresponding positions of the metal layer.

Abstract: A packaging bag includes a sealed bag and a radio frequency identification (RFID) tag attached to an easily tearable line proximate to a sealed end of the sealed bag, such that when a user tears the sealed bag along the easily tearable line, the RFID tag is damaged to effectively prevent confidential information stored in the RFID tag from being stolen by others.

Abstract: A method for forming a radio frequency identification (RFID) tag on a packing bag is disclosed and includes the steps of: equidistantly attaching RFID tags to a release film, one by one, to form a roll of tag web; installing the roll of tag web in a packing bag forming device to move the release film along a feeding direction of a packing material; changing a moving direction of the release film for peeling the RFID tags from the release film; intermittently pressing on the RFID tags for attaching the RFID tags to the packing material; bonding the RFID tags to the packing material with a melting technology; and processing the packing material by folding, sealing, and cutting to form packing bags securely installed with the RFID tags. A packing bag forming device for carrying out the method is also disclosed.

Abstract: The present invention discloses a packaging material with a RFID tag, and the packaging material includes a surface material, a protecting layer printed on an internal side of the surface material, a conducting layer formed on the protecting layer to constitute a pattern of a transceiver antenna, a chip coupled to a feedback terminal of the transceiver antenna to form the RFID tag, a substrate and a coupling agent for combining an internal side of the surface material with an internal side of the substrate. The invention also discloses a method of manufacturing the packaging material with the RFID tag.