ISLAMABAD: Pakistan Polypropylene Woven Sack Manufacturers Association (PPWSMA) has requested Prime Minister Shehbaz Sharif to make QR-Code printing on plastic bags to ensure their recycling. In a ...

It's the invisible ink of childhood, all grown up and with a serious purpose. Researchers have developed a high-tech ink, which they used to print QR (quick response) codes that are invisible in ...

PEA RIDGE -- In an attempt to improve communication, QR codes are being added to signs placed on properties that will be the subject of public hearings. "We want to make sure the information is ...

3D printing is extremely practical when you want to produce small quantities of customized components. However, this technology has always had one major problem: 3D printers can only process a single ...