The FTSE 100 currently offers up a 3.6% dividend yield. But as a keen income investor, I’m not content with this. I’m on the hunt for UK blue-chip dividend shares with better yields. There are plenty for me to choose from too. And critically, plenty of these look in good shape to provide a sustainable and growing dividend over time. Here I’ll explain why I’m searching for dividend stocks to buy, and reveal one I’m keen to add to my portfolio. It’s grown shareholder payouts every year since the 1960s! Why is dividend investing so important? For one, it can be critical for people who need to fund their everyday expenses, such as retirees, who need a regular income to add to their State Pension. I’m not at this stage yet. But the reasons why I’m targeting income-paying shares is also extremely important. I’m looking to receive dividends so that I can reinvest them to exponentially grow my wealth. This process — known as compounding — is essentially a way of earning money on money that I’ve already made. When my dividends are used to purchase additional shares, those new shares I own may also provide dividends, which I also...