Web stretching method and method for producing retardation film

Web stretching method and method for producing retardation film

  • CN 102,625,746 A
  • Filed: 06/17/2010
  • Published: 08/01/2012
  • Est. Priority Date: 07/30/2009
  • Status: Active Application
First Claim
Patent Images

1. net drawing process for one kind;

  • Be in heating clamber, but net is heated in draft temperature, move via said conveyance guiding element simultaneously with at least one conveyance guiding element;

    Moving direction along said net stretches, and said net drawing process is characterised in that;

    From the fluid ejection port ejecting fluid on the surface that is formed on said conveyance guiding element, form fluid layer on the surface of said conveyance guiding element,Move on said fluid layer through said net in said heating clamber, and under said net is got along well the situation of said conveyance guiding element contact, change the moving direction of said net.

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