摘要:
A print consumable (10) may include a rotatable core (12), a roll of dispensable print substrate (14), and a radio-frequency identification (RFID) tag (20). The roll of the dispensable print substrate (14) may be dispensably secured to the core. The RFID tag (20) may be secured to the core (12) and configured to rotate about a core axis. The RFID tag (20) includes an RFID antenna (32) coupled to an RFID chip (34). The RFID chip may include a print counter (36), a stock-keeping unit (SKU) code (38), and a consumable authentication code (40). A print system (70) may include a housing (72), a holder (80) to hold the print consumable, a print head (92), a transceiver (94), a trace antenna (26) for reading an RFID tag of the print consumable (10), and a controller (100). The controller may be configured to receive a signal from the transceiver indicative of one or more of the print counter, the SKU code, and the consumable authentication code received from the RFID antenna.
摘要:
A writing tip assembly for dispensing a free-flowing low-viscosity ink from a writing instrument may include a micro-spring, a writing ball configured to transfer ink to a substrate, and a second ball between the writing ball and the micro-spring. The second ball is configured to transfer ink to the writing ball. A writing instrument for dispensing a free-flowing low-viscosity ink includes an ink reservoir, the writing tip assembly, and a feeder fluidically coupling the ink reservoir to the writing tip assembly.
摘要:
Adhesive formulations and methods for making adhesive formulations are provided. An adhesive formulation includes at least one oxazoline polymer and casein. Methods of making adhesive formulations include combining at least one oxazoline polymer and casein to form the adhesive formulation. Glue sticks made using these adhesive formulations and methods are also provided.