ATLANTA — Unifi, Inc. reported a loss of $676,000, or 1 cent per share, in net income for the first quarter, ended Sept. 28, which the Greensboro, N.C.-based fiber company blamed on a continuing decline in sales of existing homes, cars and light trucks.

However, increased sales of Unifi’s premium value-added yarns and other product mix enrichments for markets including apparel contributed to year-over-year margin improvements. The loss compares with a loss of $9.2 million, or 15 cents per share, in the prior third quarter.

Net sales decreased slightly to $169 million from $170,5 million a year ago. Unifi said net sales were positively affected by volume gains in Brazil and strength in its nylon business, which continues to be driven by consumer and fashion preferences.