You may be able to get a bank loan on your personal credit. The bank will simply look at your credit score and your current income (which indicates your ability to re-pay the loan). Your company will most likely not be able to obtain a bank loan until the point it has had positive cash flow for 6+ months.

I have used credit card debt, 401k withdrawals/loans and home equity loans to finance my personal expenses in the past. They all work, but savings are obviously better.

If your idea is good enough and mature enough, you can try to raise money from family & friends.