International technology Group Andritz is to supply four new needlepunch lines for nonwovens production to Chongqing Double Elephant Microfiber Material a Chinese manufacturer of microfibre materials, polyurethane (PU) synthetic leather and PU resins.

The needlepunch lines are designed to process islands-in-the-sea fibres dedicated mainly to the production of high-quality synthetic leather products and once fully operational will produce 30 million metres of microfibre nonwoven materials annually.

The production lines are equipped with Andritz carding machines and the newly developed Profile crosslapper as well as the advanced-technology ProWid closed-loop system which can monitor the weight uniformity (CV%) of the entire production online. It can also predict weight distribution changes caused by the bonding process and in addition, the web weight can be reduced by controlled stretching, which solves the issue of fibe accumulation at the edges of the web caused by traditional crosslapping methods.

Both the weight and the uniformity of the product can be automatically adjusted via the closed-loop function as set on the Andritz gauge.

The lines are scheduled for installation and start-up in the fourth quarter of 2021.

Chongqing Double Elephant Microfiber Material is located in the the Changshou National Economic and Technological Development Zone of Chongqing City.

www.andritz.com