FEEDING METHOD OF OPTICAL FILM

• Main Authors: MIZUSHIMA HIROAKI, YAMAMOTO YOSHIFUMI
• Format: Patent
• Language: English; Japanese
• Published: 18.06.2020
• Subjects: CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PACKING; PERFORMING OPERATIONS; PHYSICS; STORING; TRANSPORTING

To provide a feeding method of an optical film hardly causing a poor appearance in an optical film.SOLUTION: A method is for feeding an optical film F0 in a path line of a conveyance facility, in a manufacturing facility of the optical film F0 having the conveyance facility equipped with a plurality of conveyance rollers R11a-R15 and a plurality of processing tanks 2. In the method, after immersing the optical film F0 in a processing bath L inside a processing tank 2 (for instance, a swelling processing tank 21) located in an upstream side in a conveyance direction of the optical film F0, the optical film F0 is fed to the conveyance rollers R2 and R12 arranged at a processing tank 2 (for instance, a dyeing processing tank 22) located at a downstream side in the conveyance direction of the optical film F0.SELECTED DRAWING: Figure 2 【課題】光学フィルムに外観不良が生じ難い光学フィルムの通紙方法を提供する。【解決手段】本発明は、複数の搬送ローラＲ１１ａ〜Ｒ１５を有する搬送設備と、複数の処理槽２とを備える光学フィルムＦ０の製造設備において、搬送設備のパスラインに光学フィルムＦ０を通紙する方法であって、光学フィルムＦ０の搬送方向上流側に位置する処理槽２（例えば、膨潤処理槽２１）内の処理浴Ｌに光学フィルムＦ０を浸漬させた後に、光学フィルムＦ０の搬送方向下流側に位置する処理槽２（例えば、染色処理槽２２）に設けられた搬送ローラＲ２、Ｒ１２に光学フィルムＦ０を通紙する。【選択図】 図２