Invention Grant
- Patent Title: Systems and methods for providing micro-aberrations on film
- Patent Title (中): 用于在胶片上提供微像差的系统和方法
-
Application No.: US14097448Application Date: 2013-12-05
-
Publication No.: US09333701B2Publication Date: 2016-05-10
- Inventor: Paul Eugene Thomas , James Marion Myers
- Applicant: Tredegar Film Products Corporation
- Applicant Address: US VA Richmond
- Assignee: TREDEGAR FILM PRODUCTS CORPORATION
- Current Assignee: TREDEGAR FILM PRODUCTS CORPORATION
- Current Assignee Address: US VA Richmond
- Agency: Condo Roccia Koptiw LLP
- Main IPC: B29C59/06
- IPC: B29C59/06 ; B26F1/26 ; B29C59/04 ; A61F13/511 ; A61F13/15

Abstract:
Systems and methods for forming a vacuum formed, apertured film with micro-aberrations may be disclosed. For example, a polymer web such as a molten polymer web may be received at an engagement point between a screen with a positive aberration and a roller comprising a surface with a negative depression. The roller may have a diameter of no more than about 5.5 inches. A micro-aberration may be expanded, for example, on a land of the polymer web at the engagement point by inserting the positive aberration on the screen into the negative depression on the surface of the roller at a pressure of about 1.5 to about 3.5 pounds per linear inch (PLI). Additionally, one or more apertures are formed in the polymer web adjacent to a micro-aberration on a land.
Public/Granted literature
- US20140151934A1 Systems And Methods For Providing Micro-Aberrations On Film Public/Granted day:2014-06-05
Information query