Method of making elastic plastic netting made of oriented strands

  • US 5,256,353 A
  • Filed: 12/23/1991
  • Issued: 10/26/1993
  • Est. Priority Date: 11/30/1989
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of making a knitted thermoplastic netting having longitudinal ribbons and lateral ribbons, comprising the steps of:

  • producing a substantially unoriented primary film consisting essentially of linear low density polyethylene;

    slitting the substantially unoriented primary film into longitudinal ribbons;

    orienting by stretching the longitudinal ribbons to have a ratio of stretched oriented length to original substantially unoriented length of about 1;

    4 to 1;

    5; and

    knitting said oriented longitudinal ribbons and the lateral ribbons into a knitted net;

    wherein said knitted net has an elastic limit of more than about 6%, an elongation at break of more than about 60%, and an elasticity of more than about 15% when stretched more than 40%.

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