Patent ID: 8469938

Claim:
A process of manufacturing a drug bag, comprising: sealing a front-side plastic film and a back-side plastic film such that a drug bag body having a compartment is formed; placing a portion of a port member between the front-side plastic film and the back-side plastic film such that the compartment communicates with outside of the drug bag body through the port member; disposing a heat generation element on a front surface of the front-side plastic film; pressing a press member toward the heat generation element, the front-side plastic film and the port member; irradiating infrared laser to the heat generation element through the press member during the pressing such that the heat generation element generates heat by absorbing the infrared laser transmitted through the press member; fusion-bonding the portion of the port member to the front-side plastic film; and wherein the disposing of the heat generation element comprises disposing a plastic label to which an ink absorbing infrared laser is applied, and adhering the plastic label to the front-side plastic film of the drug bag body.